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Pattern Signature Classifier SP4 User Manual

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1. 1 HELP List all the commands 2 VERSION Query firmware version number DIR Directory listing of the CF card 4 TIME Time query and set command 26 Set query date 6 OOPSEP Set or query loop separation in cm 7 OOPLEN Set or query loop length in cm 8 STATUS Print unit status 9 LOOPSTATUS Status of the loop 10 ADDRESS The units address 11 VBV Vehicle by Vehicle output 12 COUNT RESE Reset the vehicle count ID to 0 13 SEND STOP Binary packet unsolicited live traffic data 14 EVEN Output loop events 15 OPENLOG Open an ASCII LOGDATA TXT log file to store all messages including vehicle line by line output event output and signature outputs 16 CLOSELOG Close the log file 17 VBV_OPEN Open a BINDATA DAT to record vehicle records 18 VBV_SAVE Save BINDATA DAT file 19 LOG Query log file status 20 ROLLING End of file semantics 21 Initialise the FAT file system 22 RECOVER ASCII FILE RECOVERY 23 AUTO RECOVER ASCII file recovery 24 SITE Set or query the site name Maximum 32 characters 25 SITE NO Set or query
2. 10 2 3 Hardware and Software Configuration 10 24 Classifier Front and Hear View 13 CHAPTER 3 CLASSIFIER 18 34 Loop Signature Detection 18 REB II Muive t cipe T 18 3 9 JCIasSMICallOH aaa 21 34 51 see eS gen spp eM I ME 22 3 5 Data TranSMiSSion 24 t 24 4 Communications cis tt eee e EU RE Eid EE 24 3 8 Local Terminal iciesiuuinn a oc 25 CHAPTER 4 COMMUNICATION PROTOCOLS 26 44 ASCII Terminal pecu c aS Ria ima 26 4 2 ASCII Terminal Command Description 4204 4 3 01 1 29 CHAPTER 5 BINARY PACKET MESSAGE 62 eevee 62 5 2 Data link layer RACCOM packet protocol 62 5 3
3. 4 2 28 STRD MS Straddle algoritham time The straddle algoritham uses straddle loop pairs The straddle loops pairs are those adjacent to the next lane The setting of straddle pairs are loop 1 and 3 and loop 2 and 4 If vehicles straddle both lane then only one lane is counted Syntax 45 Strd ms Where n is in milliseconds range 0 254 If n 0 straddle algoritham is turned off The default setup is 50 milliseconds 100 traddle Ms 50 State CRC 9321 Setup CRC 44c9 255 254 traddle Ms 100 traddle Ms 100 State CRC da9f Setup CRC 692d traddle Ms 254 4 2 29 LANEX DIR SP4Only Unidirectional straddle filter setup This filter allows counting vehicle on a specified direction only Syntax LANE1 DIR n LANE2 DIR n Where n 2 0 1 2 If n then straddle filter is off Direction values assumes either or If n 1 then straddle filter is setup to count only when loops turn on loop 1 then loop 2 Direction value If n 2 then straddle filter is setup to count only when loops turn on loop 2 then loop 1 Directiob value Default straddle filter is OFF ie n 0 gt El DIR Unidir Straddle filter Lane 1 OFF Where gt LANI Commi Where gt Commi tted wit tted is 1 DIR 1 loops 1 then 2 State CRC e28d Setup CRC 2f62 Unidir Straddl
4. E 78 CHAPTER 11 0 79 tn 79 11 2 Communications and 79 11 32 a ca ta pea ce erui 79 CHAPTER 12 TECHNICAL 80 vi Chapter 1 INTRODUCTION 1 1 Counter Classifiers This document provides operational information for the SP4 classifier and supported firmware solutions Unless where explicitly specified the instructions are common for all firmware solutions The SP4 fitted with AXD4 firmware functions as an axle detecting counter classifier It operates on two loops per each lane The SLC4 is a firmware variance which operates on a single loop for each lane 1 2 Scope This document is the Installation and User Manual for the SP4 classifier and firmware variants designed and manufactured by R T E M Limited This manual provides information required for installation initial configuration and first level fault finding WARNING WARNING notices alert you to risks of personal injury A CAUTION CAUTION notices alert you to risks of equipment damage or loss of data 1 3 Installation Training Installation Engineers should be suitably qualified or have previous experience in Roadside equipment installation WARNING Be
5. HH MM SS milliseconds since midnight Note the binary protocol allows the synchronisation of time in milliseconds If the unit is networked time is automatically broadcast by the Master unit to all the slave units 4 2 5 Date To query the current time just tyoe DATE DATE DATE 2007 08 05 To change date type DATE YYYY MM DD Date format is Year Month day each seperated by DATE 2007 08 05 Committed State CRC 3452 Setup CRC 7ba4 DATE 2007 08 05 When date is changed the unit will commit the new date to the setup The setup data will be commited to both the default and state mirror sector If the unit is in default initialisation mode changing date will automatically set it to normal mode If the unit is networked date is automatically broadcast by the Master unit to all the slave units 4 2 6 Loop separation Loop separation is the gap between the leading and trailing loop The loop separation variable doesn t exsit for single loop classifiers or the cycle detectors For the dual loop classifiers loop separation must be set representing as accurately as possible the actual loop separation Loop separation is in CENTIMETRES To query loop separation type LOOPSEP LOOPSEP LOOPSEP 100 100 The default loop separation is in 100 1 m To change loop separation type LOOPSEP LANE 1 LANE 2 31 LOOPSEP 150 150 Com
6. So PENSE TE NTE EEA naain APAPA EE 63 CHAPTER 6 MULTIDROP NETWORK 72 6 1 Address links amp Lane mapping 72 6 2 Operational Settings 73 6 3 Time amp Date Broadcast 73 6 4 PE FD etm 73 6 5 Polling rate vs Vehicle rate tertius etre iiie 73 CHAPTER 7 THE MICRODIAL SOFTWARE 22 2 4 44 41 74 GaN OR WOW 74 CHAPTER 8 75 Gali ClassifierInstallaliOn uie inen XXE EE 75 82 LIRE 75 CHAPTER9 COMMISSIONING AND 76 91 Essential Parameter check ara da ENa 76 92 Site Operational check eene m tieni cce bi TI CHAPTER 10 78 E ea E 78 10 2
7. The system variables is primarily used in case of site debugging is required 4 2 51 Read sector CFRD Compact Flash card read sector in hex output Syntax CFRD Where xx is the hex value of the sector gt 24 lt 591 gt Oa Od 4c 6 67 20 53 74 61 72 74 69 67 0 Od Log Starting 58 32 30 30 37 31 30 2 30 38 20 31 31 31 37 2007 10 08 11 17 31 31 09 0 0d 53 49 54 45 20 4e 4f 54 5f 53 11 5 NOT 5 45 54 0a Od 53 49 54 45 4e 75 6d 62 65 72 20 ET SITE_Number 31 0 Od 43 4c 41 53 53 49 46 49 43 41 54 49 4f 1 CLASSIFICATIO 4 2 52 Errors List of errors counts and traps If there are no errors then no output is made This is used mainly for debugging 4 2 53 Reset Reset the unit similar to pressing the reset button Reset doesn t change the state of the units but continues normally Reset procedure last state is recovered Loop oscillator is restarted In essence reset just continues the operation from the point of instance of the last state saved state reset Recovering State Ok Sectors Mirror 1000208 Pre 1000209 DynSector 1000209 crc 414 State Recovered 1000209 State CRC f414 Setup CRC 5365 Loop Signature Analysis Module Terminal Mode 4 2 54 Cold Start Coldstart will reset the unit from a default state Cold start assumes the same state if the unit was powered up with no compact flash card or
8. LeadingLoopOn 100L loop length Where Delta speed is speed calculated in metre second Leading Loop On time is the time measured in millisecond when the vehicle presence is detected Leading Loop Off time is the time measured in millisecond when the vehicle moves out of the loop detection zone The speed is measured by accurately measuring the time when the vehicl nters the Leading loop and when the when the vehicl nters the Trailing loop The speed equations are given below for the dual loop classifiers Time measurement has a resolution of 1 millisecond The measurement has rounding error for the last digit i e 4 1 mph or 1 1 Dspeed Loop sep loop length 100 TrailingLoopOn LeadingLoopOon m s speed Dspeed 36L 100L Km hour speed Dspeed 224L 1000 mph hour Where Dspeed is speed calculated in metre second Loop Sep is the loop separation between the leading loop and the trailing loop in centimetres Loop length is the loop length dimension of the loop respect to the flow of the vehicles in centimetres Trailing Loop On is the time measured in millisecond when the vehicle presence is detected Leading Loop On time is the time measured in millisecond when the vehicle presence is detected The single loop classifier soeed measurement derived from complex differential calculations and statistical analysis See section 3 3 20 Std Field N N Gap Headway
9. 75 Chapter 9 COMMISSIONING AND TESTING When the unit is first installed with a formatted compact flash card the unit will enter into default initialisation mode The 4 led s will flash every 1 second this indicates that the unit is operating in default initialisation mode When date is set the unit will exit the default mode and enter into operational mode All the setting will now assume default values The user should set the time and check the essential parameters before leaving the site these are listed below 9 1 Essential Parameter check The following list the essential parameter check The essential check may be done using a dump terminal such as hyper terminal or using MicroDial The following section deals with using a dump terminal Refer to the MicroDial manual for auto commissioning and installing procedures e Connect the USB cable to the unit e Set the baud rate to 57600 1 1 with no handshake 9 1 1 Date Check date is correct 9 1 2 Time Check time is correct 9 1 3 Loop Separation For SP4Only Check loop separation is correct Loop separation is the gap between the leading and trailing loop 9 1 4 Loop Length Check loop length is correct Loop length is the longitudinal length of the loop in line with the flow of the traffic 9 1 5 Bike Ratios For SP4 BIKE RATIO 76 For SP4 SLC4 BIKE_RATIO12 BIKE_RATIO34 Bike Ratio s should not be less the 100 The default value is 120 If bik
10. Axles Height PW Direction of flow Validity code ASCII VBV Output Description The time measured between the instant when a vehicle leaves the trailing loop and the instant when the next vehicle enters the leading loop Gap is measured in seconds The time measured between the instant when a vehicle enters the leading loop and the instant when the next vehicle enters the same loop Headway is measured in seconds Axles are measured by profiling the signature A ratio that is proportional to the height of the chassis from the road surface Actual Height k Height Since k is a constant that varies from site to site k remains an unknown Hence height given is just proportional to the actual height Time in milliseconds relating to the presence of the vehicle above the loop SP4 Leading Loop Upstream loop Trailing loop Down stream loop indicates vehicle movement from leading loop to trailing loop indicates vehicle movement from trailing to leading loop SP4 SLC4 Direction may be set by the user by observing the vehicle flow is default Single loop classifiers can t measure the direction of the travelling vehicle All firmware variants support two different formats of Vehicle by Vehicle output The standard format is a shortened version of the VBV listing whilst the extended version displays all parameters including many that are not commonly used The STD field in the table above shows whic
11. Pattern Signature Classifier SP4 User Manual Contact Details R T E M Limited Unit 3 Leaches Farm Business Centre Bicester Road Kingswoood Aylesbury Bucks United Kingdom HP18 ORF Telephone 44 0 1296 770765 Facsimile 44 0 1865 451477 Web www rtem co uk Email sales rtem co uk SP4 Installation and User Manual R T E M Copyright 2005 2008 This document may not be reproduced without the strict permission of R T E M Ltd Document Control Document Number Issue Number Authors Document History Issue Date 1 0 20 02 2007 1 01 14 10 2007 1 02 15 10 2007 1 03 30 10 2007 1 04 10 03 2008 1 05 26 06 2008 1 06 31 08 2008 0 00001 1 06 Anup Lekshmanan Brian Moss Description Draft Issue Draft issue 01 Draft issue 02 Draft Issue 03 Draft Issue 04 Draft Issue 05 Draft Issue 06 CONTENTS CHAPTER 1 INTRODUCTION 7 LE COUNTER Classer S RETO LO LL 7 1 2 7 1 3 Installation 7 UE 7 CHAPTEH2 10 24 The CLASSIC Sse sey CL DT 10 22 Datta CONG CU OM REEL LLLI
12. 16 60 as shown below TASKING M16C Flasher File Help Flash Target Communication Target selection M16C20 M16C60 3 Select the communication tab and set the target connection to serial Select the appropriate com port and set the baud rate to 38400 TASKING M16C Flasher DER File Help Flash Target Communication Target Connection Serial USB Serial Communication Settings Port 1 Baud rate 4 From the main Flash tab press the start button 16 At the end of the download ensure that the dip switch is re positioned to NORMAL Press the reset button 2 4 8 1 Firmware Firmware is named as SP4 MODSIG lt VERSION gt HEX Example MODSIG_205 HEX The version is 2 05 SP4 SLC4 SLP lt VERSION gt HEX CYC400 CYCLEDET lt VERSION gt HEX Any of the firmware can be downloaded to the same hardware using the above method 17 Chapter 3 CLASSIFIER FUNCTIONS 3 1 Loop Signature Detection Every vehicle exhibits a unique magnetic signature which can be picked up by small changes of inductance as the vehicle passes over it These signatures are directly related to the metal shape of the vehicle and how these metal parts are positioned relative to each other in a 2 dimension space i e height and length separation Hence for each vehicle the signature can be clearly seen and identified The graph below shows the signatures of a Bus and a
13. NAME OF FILE FCLOSI FWRITI FREAD FTEXT Text file to read CFRD Sector Hex Addr Time amp Date Setup TIMI HH MM SS DATI YYYY MM DD MODEM 0 Disable 1 Enable MODEM TYPE 0 US Robo 1 GSM WaveCom GSM ROAMING HOURS Fl Fl 29 SHARP_EDGE lt 1 gt Enables detection without flux compensation VBV Suspect Codes These are bit masks gap headway speed axles length type gt Se HE Mo 4 2 VERSION The version command will display the firmware version number and when the firmware was released In addition it will also printout the current network address of the unit gt version VERSION 2 05 11 07 2007 Device Address 15 4 2 3 Dir The DIR command gives a directory listing of files on the compact flash card Following shows an example of directory listing The compact flash cards are FAT16 formatted The size and the sector are represented in hexadecimal Sectors are 512 bytes in length File name Size Sector BINDATA DAT size 00000200 sector 0000024F no more files 4 24 TIME To query the current time just type TIME gt 11 00 20 39619446 Changing time To change time enter TIME HH MM SS 30 The unit will echo back the time with bracket containing the time in milliseconds gt 11 10 15 11 10 15 40215002 Time is represented
14. 2211 2212 2212 2212 2212 2213 2212 2212 2213 2211 2212 2212 2213 2211 2212 2213 2213 2212 2213 2211 2212 2212 2211 2211 2212 2213 2211 2212 2212 2213 2213 2214 1 004 4 0 76197351 76197810 67 1 2 169 33 1 1 1 1 1 1 477 1 1 1 1 1 1 1 2212 2212 2212 2213 2213 2213 2213 2213 2212 2213 2007 10 10 21 09 59 00000102 1 239 23 1 2013 2019 1 63 687 2213 2214 2213 2214 2213 2213 2212 2213 2213 2213 2214 2213 2213 2214 2213 2213 2213 2214 2214 2214 2213 2214 2213 2212 2213 2213 2214 2212 2213 2214 2213 2213 2214 2213 2213 2214 2213 2212 2213 2212 2214 2213 2214 2213 2212 2212 2214 221 Completed Scan Last Sector 693 gt 4 2 39 Signature tail SIG_TAIL Capture signature captures the vehicle signature on vehicle presence The tail end of the signature may be extended beyond the presence time by setting the signature tail in milisecond Syntax Sig_tail lt n gt Where 1 254 in milliseconds Default value is 10 sig tail Signature tail end 10 sig tai 1 255 Out of Range gt Try 1 254 Signature tail end 10 sig tail 20 Committed State CRC 5445 Setup CRC 5365 Signature tail end 20 4 2 40 SIG TO SCHEEN The signature output is send both the file write logging process and the terminal output screen process The output to the screen can be enabled or disabled using this command without effecting the logging process MicroDial would normally parse the terminal c
15. 2211 2212 2212 2213 2211 2212 2213 2213 2212 2213 2211 2212 2212 2211 2211 2212 2213 2211 2212 2212 2213 2213 2214 1 004 4 0 76197351 76197810 67 12 169 33 1 1 1 1 1 1 477 1 LL XT LL Xp 1711 2212 2212 2212 2213 2213 2213 2213 2213 2212 2213 2007 10 10 21 09 59 00000102 1 239 23 1 2013 2019 1 63 687 2213 2214 2213 2214 2213 2213 2212 2213 2213 2213 2214 2213 2213 2214 2213 2213 2213 2214 2214 2214 2213 2214 2213 2212 2213 2213 2214 2212 2213 2214 2213 2213 2214 2213 2213 2214 2213 2212 2213 2212 2214 2213 2214 2213 2212 2212 2214 Completed Scan Last Sector 693 recover 252 3 capture next 1 Capture Start Sector 1 690 gt 2208 2207 2208 2207 2206 2205 2205 2203 2203 2203 2202 2202 2201 2201 2199 2199 2198 2197 2196 2195 2195 2193 2192 2192 2191 2191 2189 2188 2188 2188 2186 2184 2185 2183 2182 2182 2181 2182 2180 2181 2180 2180 2179 2180 2179 2181 2181 2180 2180 2181 2181 2181 2182 2181 2181 2182 2181 2183 2182 2182 2183 2182 2182 2182 2183 2183 2183 2183 2182 2183 2183 2183 2182 2182 2183 2183 2182 2184 2183 2184 1 003 3 1 76196887 76197574 63 12 274 35 1 1 1 1 1 1 610 2 E d p T 51 2183 2183 2183 2182 2183 2183 2182 2182 2183 2182 2185 2186 2186 2188 2187 2189 2189 2190 2192 2192 2193 2194 2194 2194 2196 2197 2198 2198 2199 2199 2200 2202 2202 2202 2203 2204 2204 2204 2204 2204 2206 2207 2206 2206 2207 2207 2208 2209 2209 2209 2208 2209 2210 2210 2211 2210 2212 2211
16. 46 GSM POWER To turn off gsm gsm power 0 To turn GSM on permanently Gsm power 40 To turn on gsm on timer gsm power hour minutes on hour is 0 23 MINUTES is 1 1439 gsm power GSM Power switch timer disabled gt gsm power 24 0 Syntax Error To turn on GSM_POWER HOUR MINS ON where hour 0 23 Min 0 1440 To turn off GSM POWER 0 gsm power 23 10 Committed State CRC 5687 Setup CRC c19d Daily GSM Power up on the hour 23 For 10 mins gsm power 0 Committed State CRC 4723 Setup CRC 5365 GSM Power switch timer disabled gsm power 30 10 Committed State CRC d40 Setup CRC ac93 Hourly GSM Power up For 10 mins gsm power 0 55 Committed State CRC elaf Setup CRC 5365 GSM Power switch timer disabled 4 2 47 SERIAL ON The serial port can be turned on or off Turning the serial port will save power Syntax Serial on n Where n 1 serial port enabled n 0 serial port disabled Default is serial port enabled serial on 11 serial on 00 4 2 48 PRE_SATE The state of the unit is preserved in the non voltile memory The state is refered to as the operational parameter data values Some of these data values states are fixed whilst others are dynamic Syntax Pre state Pre state n Where n 1 to 3600 in seconds Example Loop length Loop separation and many of the above user setups assume a fixed state Time date wr
17. Car Trailer 1760 760 1740 740 4 1720 720 1700 700 Series1 Series1 1680 680 1660 660 1640 640 1620 620 1 47 93 139 185 231 277 323 369 415 1 41 81 121 161 201 241 281 321 361 Signature of a bus Signature of a Car with a Trailer The traditional loop detector measures the change of the frequency due to inductance change due to a vehicle passing over it and compares this to a threshold value to determine a presence and the duration of this presence With both versions of firmware the unit captures the waveform and analyses it real time in addition to determining the presence The signature analysis module also employs dual tracking of the reference unlike many traditional tracking This allows for constant automatic tuning resulting in greater measurement accuracy Hence unlike the traditional loop detectors where the percentage change from the datum value is required to trigger a vehicle event the signature analysis reviews the signal itself to determine the presence of the vehicle This is a powerful methodology which allows detection of very slow moving vehicles It also means the algorithms employed are not as overtly dependant on quiescent inductance level Furthermore using the dual tuning mechanism the algorithm is always tracking The end result is exceptional responses with queuing traffic and also from traditionally more
18. When installing networked systems on highways the appropriate care should exercise at all times Refer EN 60950 1 2001 Clause 6 1 4 5 Static Electricity Electrostatic discharge ESD may present a risk of damage to delicate electronic devices Always take suitable precautions to avoid ESD damage to equipment particularly through improper handling methods A CAUTION e This unit does not contain any user serviceable parts Standard ESD precautions should be observed when handling the unit with the cover removed Chapter 2 OVERVIEW 21 The Classifiers The SP4 vehicle classifier is an advanced electronic device that is used in roadside cabinets connecting to inductive loops Two loops are necessary for a speed classification site together with the AXD4 firmware Each SP4 AXD4 can be connected to a maximum of 4 loops to give operation on 2 lanes The SP4 AXD4 s can be connected together to monitor and record up to 14 lanes optionally 16 lanes If the SLC4 firmware is installed the SP4 will give similar results with the exception that it uses a single loop to monitor and record vehicles This allows the unit to monitor up to 4 lanes The units can be connected together to monitor up to 28 lanes The SP4 AXD4 can operate on a number of classification schemes whilst the AP4 SLC4 currently only operates on EURO 6 2 2 Data Collection The primary function of the Classifier is to record individual vehicle records Each vehicle is
19. a totally new compact flash card Both date and time will be reset Time will start at O and date will be set to 2006 01 01 When the unit is cold started the led s will flash continuosly The unit will continuosly check the Compact flash card If a CF with setup is inserted then that setup will be assumed The terminal will printout the message Checking CF 59 The following shows the coldstart being issued The unit will assume default state gt coldstart Recovering State ATS0 2 0000F CRC 7a8c 9e394100003968007 Default State AT gt Checking CF Checking CF gt status Vehicle Profiler Ver 2 05 Release Date 11 07 2007 Device Address 15 SITE NOT_SET SITE_Number 1 DATE 2006 01 01 TIME 00 01 58 117526 Logging Disabled Binary VBV File Disabled File Closes Signature_Capture disabled Signature to Screen enabled Modem Enabled Modem WaveCom 1206B GSM Roaming 1 hours GSM Power switch timer disabled GSM Power Auto ON in hours 120 Extended VBV with Axles amp Headway amp CLASSIFICATION EURO 6 SPEED Kph Unidir Straddle filter Lane 1 OFF Lane 2 OFF Preserve Interval 20 secs modsetup count 114011989072503011847 SLAVE DEVICE gt If the user changes of the system parameters the unit will automatically switch from the coldstart state Example if the date is changed then the unit will go into normal state gt date 2007 09 18 Comm
20. amp 2 e All other link positions assumes for slave devices This leaves 6 slave addresses with the links 1 6 ids with 3 bit address The table below shows the link position and the lane mapping Description Jumper SP4 SLC4 SP4Address SP4 SLC4 SP4 AXD4 configuration Address Lane Lane 1k2 mapping mapping Stand alone 0 0 0 23 1to4 1 to2 MASTER 1 1 16 1104 1102 Slave 01 17 5 108 3104 2 Slave 1 0 1 18 9 to 12 5to6 3 Slave 00 I 19 13to16 7008 4 Slave 1 0 20 17 20 9 10 5 Slave 0 1 0 21 21to24 11012 6 Slave 1 0 0 22 25 to 28 13 to 14 Jumper configuration as viewed from the front 0 no link fitted 1 link fitted 72 6 2 Operational Settings There are no operational settings The master and each slave device must be setup separately as required Once connected to MicroDial send the update time command to the Master device Time and date will be automatically broadcast by the master devices synchronising all slave devices The master will automatically link to each of the slave devices and start polling the instance it is connected to the slave 6 3 Time amp Date Broadcast synchronisation The master device will automatically synchronise the time and date of all the slave devices A time amp date broadcast is issued when the time or date is changed in the Master device or every midnight 6 4 Data storage The
21. aware of potential hazards normally associated with any road side installation As a minimum engineers must be familiar with 1 Safety aspects concerning equipment connected to telecommunications lines 2 Highway safety procedures 1 4 Safety This section identifies hazards that may be associated with installing this equipment The equipment itself is low voltage and low weight and does not pose any direct hazard The installation of this equipment at roadside does warrant awareness of roadside safety procedures and should be only be carried out by properly trained staff 1 4 1 Power DC Connection This equipment uses DC power in the range 4 volts DC to 18 Volts DC Operating the equipment outside this range can cause equipment failure damage to the equipment or loss of data WARNING DO NOT CONNECT MAINS 1 4 2 Loop Connection Equipment can be connected to 4 loop inputs Unused loop inputs should be left open circuit CAUTION Do not short circuit loop inputs 1 4 3 Darlington Pair Output Equipment can be connected to an external device such as vehicle sign or camera A WARNING DO NOT CONNECT TO MAINS DEVICE 1 4 4 Highway Network Lines This equipment can be connected directly to the longitudinal communications cables carrying communication signals conforming to RS485 which may be found on Highways In common with other long distance telecommunications lines these cables may present a risk of induced voltages
22. byte short int short short short byte byte int int short byte byte byte short byte byte file class file_obj file vbvCount last VBVCountSend lastTxSector lastTxsubsector txSubsectorSize lastBinSector binsectorOffset fileBufferIn no of records tx captureLoop blockLivetoScreen writeCycles preState Sector resetCount ledOnSecs faultCode modem crcForcedReset sendVBV gsmAutoPowerCount new file d size fals stati byte short in in by c final int OID AppOID ModuleState_file_OID File Name start cluster start sector Fat OpenCluster file number in in in in by EX CE fat fat obj class fat Fat OpenSec end sector file size file size start open new fat d size fals stati byte int int byte short short int short short c final int OID AppOID ModuleState fat OID Num Fats Fat Start P Start Secs Cluster Bytes Sector Secs Fat Root Start Secs ere 69 5 3 8 SP4 SLC4 Specifi 5 3 8 1 SlpState class SlpState sys sys obj class sys object composition new sys d size fals stati int short byte byte byte byte byte byte byte byte byte byte short short short byte short byte byte byte byte short int byte byte short byte byte byte byte byte by
23. classified according to length number of axles axle separation and relative chassis height from the ground addition the classifiers pattern matches the signature Pattern matching provides a unique way to define a signature thus increasing the classification accuracy The single loop classifier measures the speed and length from signature derived from the single loop The information derived is passed through a complex statistical analysis engine to derive the speed and length The SP4 SLC4 uses the traditional two vehicle loop event triggers to calculate the vehicle speed and length The classifier can additionally store vehicle signatures as well as processing vehicle individual records 2 3 Hardware and Software Configuration All the functions listed above are implemented in hardware and software within the Classifier 2 3 1 Hardware 2 3 1 1 Loop Connection Each unit allows up to 4 loops to be connected The loops dimension and physical layout should be within the flowing range Loop length 10cm lt range lt 600cm 10 Loop separation 10cm lt range lt 600cm Loop Separation With SP4 SL loops must be connected in pairs whilst the SP4 SLC4 has loops connected individually Loop Pairs Lane 1 Loop 1 and Loop 2 Lane 2 Loop 3 and Loop 4 For more than 2 lanes refer to the table in section 6 1 for the internal address link connection and loop mapping For straddle algorithm loops are paired for each adja
24. closed gt 109 Logging Disabled Binary VBV File Disabled 4 2 20 Rolling The Rolling allows how to setup the end of file due to memory full is handled If Rolling is set when the memory is full the file is restarted from the start If Rolling is not set the file is closed and no further logging is carried out To query rolling End of CF File Closes To set to rolling on rolling 1 Committed State CRC 7c4b Setup CRC d93d rEnd of CF Rolling Buffer To reset rolling off rolling 0 Committed State CRC f786 Setup CRC 8687 End of CF File Closes 4 2 21 Initialise the fat FAT INIT Forced initialise the FAT area If FAT is already initialised no action is taken Otherwise FAT area is initialised The manual use of this command is not necessary as FAT area is automatically intialised when the unit detects CF card 4 2 22 RECOVER This command is used to recover the stored data in the Compact flash card sector by sector The command will ouput to the screen all the data from the starting sector to the end sector The output is stopped when end sector is reached or when key is pressed If the sector count is set it will stop when the number of sectors printed equals to the sector count 41 Syntax Recover Recover lt sector id gt Recover lt sector id gt lt sector count gt Where sector id is in hex sector count is decimal Sta
25. cycle detector firmwate version and release date 33 the device address Site name the default is NOT_SET Site number the default is 1 the current date the current time Text logging enabled or disabled Binary VBV record saving enabled or disabled The size of the compact flash card The sematics of how to handle when compact flash card is full ie close it or roll over Signature capture status Signature routing to the screen status Modem driver enabled for serial port status Type of modem currently setup default is GSM WaveCom_1206B Gsm roaming setup in hours GSM Power darlingto pair switch status GSM Power cycle time Text VBV Output format Current vehicle classification scheme Speed out measurement in KPH or MPH Starddle status State preserve interval Device network status Standalone or networked Master or Slave 4 2 9 Loop Status The loop status provides the loop operation status loopstatus Loop 2 Not Loop 3 Not Loop 0 Tuned Ref 2141 2141 0 Loop 1 Tuned Ref 2214 2214 0 Tuned Tuned OOPSEP 150 150 OOPLEN 250 250 Lane Adj 100 100 LoopScanCycles X10 27 LoopScan Fast 1ms Signature tail end 10 T 25 C 34 CPU_Cycle ms 39 Avg_CPU_Cycle ms 38 The loop status shows e Tuned status of each loop If the loop is Open circuit or short circuit then the loops will not be tuned Loop
26. difficult sites Each loop scanning can be adjusted by the unit Crosstalk and inter loop interference are avoided by fast multiplexing For each loop 2Kbytes per second signature data are generated which are processed in real time by the integrated high speed processor This ensures the system does not suffer from having additional latency introduced by the loop detector being separate from the main CPU core as in other manufactures products 3 2 Vehicle Processing Individual loop events are subjected to amplitude and differential analysis algorithms The events provide details including the number of axles axle separation and air gap 18 separation and the type of signature Each signature for cars lorries buses HGV s etc have unique characteristics These characteristics are summarized to provide a best match to typical signature vehicle class group The loop events are processed to define and measure the vehicle type speed length etc For the dual loop SP4 two loop events are required before vehicle processing is completed with the exception of motor bikes SP4 dual loop vehicle processing uses traditional method to evaluate the speed and length Speed and length is derived from the on off events of the leading and trailing loop If the events are not overlapping the SP4 will check if the events belong to a motorbike Non overlapping events that are not identified as matching a motor bike are not processed With the Sing
27. initialise option must be set to 0 To continue from the next sector set the continue option 1 For each command it will countdown the number of sectors to print and then stop If any key is pressed the output will be stopped Syntax Auto recover lt initialise continue gt lt number of sectors to print Where initialise continue 0 intilaise 1 continue no sectors range 1 to 65535 4 2 24 SITE Site defines the site name This is an alphanumerical character between 1 and 30 When set from terminal the space character is not allowed However when set through MicroDial via the binary packet space character is allowed 43 Syntax Site lt site_name gt Default setup NOT_SET site SITE NOT SET site test site Committed State CRC 5288 Setup CRC ff43 SITE test site 4 2 25 SITE NO Site number is assigned by the user Syntax Site no n Where n 0 32767 Default setup 1 site no SITE Number 1 site no 9 Committed State CRC b18f Setup CRC 35d0 SITE Number 9 4 2 26 CLASSIFICATION Set the classification table to use There are 5 settings for classifications Syntax Classification lt id gt Where classification id is a number O 5 ID Number Classification No classification EURO 6 DOE NI 5 AUSTOROADS 0 1 2 3 DTP CORE 4 5 USER Defined classification CLASSIFICATIO
28. int count int startTime byte vbvData byte instances 5 3 6 5 VbvBins class VbvBins obj new vbv class Fixed size fals static final int OID SysOID VbvBins_vbv_OID short archive int count short speed short pulse_width short gap short headway short chasisHeight byte lane byte axles byte class_id byte dir byte gDay byte gMonth short gYear int timeMs byte classMatch byte suspect int length 5 3 7 SP4 AXD40 Specific 5 3 7 1 ModuleState class ModuleState sys sys_obj new 5 5 class sys Fixed size fals static final int OID int validCode AppOID ModuleState sys OID short criticalSaveIntvalSecs byte extVBV byte clss byte siteName byte rolling byte modemType byte roamingHour byte laneAdj byte 1 byte scanCount byte difSensitivity byte bMask byte dvdtWindow short siteNo byte tailSig short bikeRatio byte crcCheckmins short hourlyGSMmins byte dailyGSMHour onThreshold short loop length short loop byte spdMph byte straddle byte straddleMs byte spareCRCed short crcFixedSetup int currTicks byte gDay byte gMonth short gYear byte logOn byte fileOpen byte read only byte vbvFileOpen byte logdata byte bindata byte activePort byte showVBV byte showEvent 68 int int int
29. site number 26 CLASSIFICATION Set or query current classification table 27 DMS Data measurement and scale Set the VBV output format as detailed or short Set the speed measurement in MPH or KPH 28 STRD_MS Straddle milliseconds 29 LANEx_DIR Directions filter for lane x Only the set direction vehicles are counted Default is OFF Where x 1 or 2 30 Lane speed length adjustment factor Where x 1 or 2 31 BIKE_RATIO Motorbike small signature ratio 325 DVDT SENS Differential algorithm sensitivity 33 DVDTW Differential algorithm parameter 34 LIVE Live lt loop gt real time signature output 35 CAPTURE_LOOP Set the loop to capture the signature on vehicle presenc 36 Capture and store the next vehicl 37 SIG_TAIL Capture signature tail end 38 SIG TO SCREEN Filter In Out the signature to the terminal 39 FAST SCAN Loop scanning speed 40 MODEM TYPE Define Modem typ 41 MODEM INIT Initialise the modem 42 MODEM Query modem status 43 GSM ROAMING Set the GSM Roaming hours 44 GSM POWER GSM Power timer settings 45 Turn ON OFF RS232 serial lines 46 Set or query the preserve stat interval in seconds 47 E COUNT R Reset Prestate sector write count 48 Query system variables 49 Read CF card sector 50 List of error 5d Warm start unit Pr
30. 184 2183 2184 2183 2183 2184 2183 2184 2185 2184 2184 2184 2185 2184 2184 2183 2184 2183 2183 2183 2182 2183 2183 2183 2183 2183 2182 2183 2181 2182 2182 2181 2181 2181 2180 2180 2179 2179 2178 2178 2178 2177 2176 2177 2177 2177 2176 2177 2177 2177 2177 2179 2179 2180 2180 2181 2183 2183 2184 2185 2186 2187 2187 2188 2189 2189 2191 2192 2192 2193 2194 2196 2196 2197 2198 2198 2199 2199 2201 2201 2201 2202 2203 2205 2205 2206 2205 2206 2207 2207 2208 2208 2208 2209 2209 2210 2209 2209 2211 2211 2212 2211 2212 2212 1 001 1 0 75995216 75995714 63 22 207 29 358 35 1 1 1 1 327 34 507 2 1 1 1 1 2212 2213 2212 2212 2212 2213 2211 2212 2211 2212 2211 2213 2213 2212 2211 2212 2212 2211 2213 2212 2212 2212 2212 2211 2211 2211 2212 2213 2213 2213 2213 2213 2213 2212 2213 2212 2213 2214 2212 2212 2213 2213 2213 2213 2213 2213 2213 2212 2212 2214 2214 2213 2212 2214 2212 2213 2214 2214 2214 2212 2213 2214 2213 2213 2214 2213 2214 2214 2214 2213 2213 2213 2213 2214 2213 2213 2213 2213 2213 2213 2215 2213 2213 2213 2214 2214 2213 2214 2213 2213 2213 2213 2213 2214 2213 2213 2212 2213 2213 2213 2214 2213 2214 2213 2213 2214 2214 2214 2213 2213 1 002 2 1 75995613 75996254 63 22 168 28 408 33 1 1 1 1 348 33 1586 6 1 1 1 1 2007 10 10 21 06 37 00000101 1 173 27 1 1 1 2 63 498 lt 3 gt capture loop 0 Signature Capture disabled 4 2 38 Capture Next presence triggered single event signature
31. LIVE lt cr gt live 1 gt 2214 2215 2215 2215 2214 2215 2215 2215 2214 2215 2214 2215 2216 2215 2216 2215 2215 2216 2216 2215 2216 2215 2215 2214 2215 2214 2215 2215 2214 2214 2214 221 Live output will result in about 1000 signature per second The continuos signature is output irrespective of vehicle events 4 2 37 Capture loop presence event triggered signature output Capture loop will capture signature when vehicles are present Syntax Capture loop n Where n 0 4 0 capture loop is turned off 1 4 loop number Default setting is capture disabled The following shows a trace where both event and VBV is turned on with capture loop set to capture event in loop 1 Signature tail is set to 20 capture loop Signature Capture disabled capture loop 1 Signature Capture for loop 1 event 1 49 Lane id idx loop ontime offtime chassisheight vbv 3 SITE 1234 SITE_Number 32767 CLASSIFICATION AUSTROADS SPEED Kph Length CENTIMETER Gap amp Headway 1 10sec DATE TIME COUNT LANE LENGTH SPEED CLASS GAP HDWAY AXLES HEIGHT PW DIR gt 2207 2207 2207 2208 2207 2206 2206 2206 2206 2205 2205 2205 2204 2203 2203 2203 2203 2203 2202 2201 2201 2200 2200 2200 2199 2199 2198 2197 2197 2196 2196 2196 2194 2194 2194 2193 2191 2191 2190 2190 2190 2189 2189 2189 2188 2187 2185 2185 2185 2185 2184 2185 2183 2183 2183 2183 2
32. N EURO 6 classification 0 Committed State CRC 4d58 Setup CRC 2c93 CLASSIFICATION None 44 classification 1 Committed State CRC e597 Setup CRC eba6 CLASSIFICATION EURO 6 classification 2 ommitted State CRC 13e5 Setup CRC 9c06 LASSIFICATION DOE NI 5 classification 3 ommitted State CRC 7db0 Setup CRC be9 LASSIFICATION DTP CORE classification 4 Committed State CRC 876b Setup CRC 634 LASSIFICATION AUSTROADS T 27 Cclassification 5 Sorry no user defined table found classification 6 Out of range 0 4 C C C C 4 2 27 DMS The DMS allows data measurement and VBV output format Syntax DMS vbv fmt lt speed measurement Where Vbv fmt 0 Standard short VBV is output or logged Vbv fmt 1 Extended VBV is output or logged Speed Measurement 0 Speed measured in Kph Speed Measurement 1 Speed measured in Mph gt dms Extended VBV with Axles amp Headway amp Speed Measured in Kph dms 0 0 Committed State CRC cbb5 Setup CRC eb4c Std VBV amp Speed Measured in Kph dms 0 1 Committed State CRC 69c4 Setup CRC af47 Std VBV amp Speed Measured in Mph dms 1 1 Committed State CRC ef24 Setup CRC 2745 Extended VBV with Axles amp Headway amp Speed Measured in Mph dms 1 0 Committed State CRC dclc Setup CRC 634 Extended VBV with Axles amp Headway amp Speed Measured in Kph
33. TA DAT The unit supports the following compact flash cards sizes Size Vehicles 256Mbyte 512Mbyte 1024Mbyte 2048Mbyte A CAUTION DO NOT INSERT ANY OTHER SIZES 22 The recommended compact flash cards are Kingston and SanDisk We do not recommend CRUCIAL 3 4 1 1 ASCII vs Binary When ASCII log file is chosen the unit will store in addition to the VBV output all the Warnings or Error messages It can also store if selected to do so the vehicle signatures and vehicle loop events When Binary is chosen only the vehicle records are stored Why choose ASCII ASCII log file should be chosen if vehicle signatures or loop events are to be recorded It should also be chosen if a site is malfunctioning as error and warning messages in the log file can be used to identify the cause of site malfunction A SCII files are slower than binary record transmission rates Why choose Binary If a site is deemed working properly then Binary storage is the preferred option Binary vehicle records provide comprehensive vehicle details It also allows fast traffic data transmission Binary record format should be chosen for remote dial up sites where dial up time need to be made as short as possible Only one of the methods is allowed 3 4 1 2 Removing amp Inserting Compact Flash Cards Compact flash cards can be removed after closing the log file or the binary record file File may be c
34. al up connection Direct Serial to PDA Direct USB to PC Transfer Rates GSM 9600 6600 line by line traffic data per minute Direct or 57 6 POTs modem the figure is typically 12000 minute File Transfer rate i 9600 57 6K 80 Storage ASCII Text file Compact Binary Vehicle Record file All files are readable using PC PDA Communications Interfaces CF ATA Interface Serial RS232 Full handshake DTE USB PC Connect Driver known to Windows RS485 Network interface Up to 8 unit interconnectivity over 4km range using CATS twisted cable Network Address 3 bit Internal Link Each unit has firmware base address The actual unit address is Base address 3 bit internal link address Allowing 8 unique addresses for each class of device Firmware Application Flash upgradeable All generic applications are Freely issued Customised are locked to a particular hardware on client request Hardware Image Internal upgrade on return to factory SP4Accuracy 2 Lane Dual loop classifier Count gt 99 Length 3 with 95 Confidence Speed 3 Typically Axles 1 Axle 75 Confidence Loop turns of 4 increases accuracy SP4 SLC4 Accuracy Single Loop classifier Count gt 99 Length 8 with 95 Confidence Speed Range 10 75MPH Speed 5 Typically 2 within 10 75 MPH Axles 1 Axle 60 Confidence C400 Accura
35. cent lane These are referred to as straddle pairs Lane 1 Lane 2 Loop 1 Loop 3 Loop 2 Loop 4 Straddle loop pairs are loop 1 and loop 3 and loop 2 and loop 4 These must be adjacent to each lane Straddling vehicles are those that run over both loops example driving in the centre of the road Straddle pairing should be observed when installing the unit on the road LOOP LOOP LOOP LOOP RS 485 1 2 3 A ae RESET NORM PROG Loop Connector 11 2 3 1 2 Darlington Pair Output The unit provide a Darlington pair output that can sink up to steady state maximum voltage of 12 Volts DC The ground must be common between the unit s power and the source In the AXD4 firmware this output is used to control the supply to an external modem to reduce power consumption The output may also be used for other switching applications which may include functions such as switch a sign or camera on in red light running scenarios or bus lane enforcement toop 1006 END Darlington Pair 2 3 1 8 Network Each unit has an internal multi drop network RESET NORM PROG LOOP LOOP LOOP LOOP RS 485 RESET NORM PROG 1 RS485 Network Pair Connect B B up to 7 devices When connecting as a multi drop each unit must be assigned a unique address refer table in section 6 1 2 3 2 Software The unit firmware is download
36. classifiers are made very flexible by supporting Terminal and Protocol based communication between itself and the PC PDA It detects the type of communication and automatically switches to the appropriate mode This means it could switch between the protocols without any setups 1 The Binary Packet based protocol is reliable communication where each message has a unique id 16 bit CRC receive and transmit sequence numbers Also it provide advance automatic tracking retries and handshakes 2 The terminal protocol is ASCII based The user can communicate to the unit via dump terminal such as the Windows Hyper Terminal There are about 70 odd terminal commands Both protocols allows the user to 1 Setup the unit Gather the status of the unit View live traffic data Retrieve Stored ASCII log data Retrieve stored binary data g fF However if the device is storing data in Binary mode then Binary protocol must be used to retrieve stored data The Packet and Message formats are published in the document RCOM Protocol for Profilers The ASCII messages are described in the next section The binary packet based protocols offer reliable secure communication with the unit whilst the ASCII based offer easy unreliable non secure communication 4 1 ASCII Terminal Commands HELP command lists most of the pertinent commands of each unit The following table provide the complete list of these commands
37. cy Cycle Counter Segregated Count gt 99 81 D
38. dSetup class ModSetup common common obj new common class common Fixed size fals static final int OID SysOID ModSetup_common_OID int timeMs short criticalSavelIntvalSecs short loop length short loop byte gDay byte gMonth short gYear byte laneAdj byte clss byte spdMph byte modemType byte roamingHour byte initialise byte difSensitivity short siteNo byte siteName byte initTime byt deviceType short bikeRatio byte dvdtWindow byte cycleAxles byte bMask short cycleTimeout byte captureLoop byte extVBV byte showEvent byte logOn byte showVBV byte releaseDate byte version short cfSize byte logdata byte bindata short bikeRatioMax int vehCount short pw max short pw min byte sigTail byte cycleAxlesMax byte vbvFileOpen byte dailyGSMHour byte faultCode short hourlyGSMmins short Spare dynamic dynamic_obj new dynamic class dynamic Fixed size fals static final int OID SysOID ModSetup dynamic OID short txSubsectorSize byte sendVBV short no_of_records_tx int start_sector int end sector byte initialise int lastTxSector int lastBinSector short crc 5 3 6 4 TrafficData class TrafficData td td obj new td class td Fixed size fals static final int OID SysOID TrafficData_td_OID byte gDay byte gMonth byte gYear
39. e filter Lane 1 is El DIR 2 loops 1 ON then 2 ON State CRC 127a Setup CRC b529 Unidir Straddl le filter Lane 1 46 Where is loops 1 ON then 2 ON gt LANE1_DIR 0 Committed State CRC 4446 Setup CRC 692d Unidir Straddle filter Lane 1 OFF Where is loops 1 ON then 2 ON 4 2 30 LANEX ADJ Adjust the length and speed by a fixed percentage Syntax LANE1 ADJ n LANE2 ADJ n Where n 50 to 200 lanel adj Lane 1 Adj 100 lane2 adj Lane 2 Adj 100 lanel adj 50 Committed State CRC 22cd Setup CRC 2722 Lane 1 Adj 50 lane2 adj 40 Out of Range gt 50 200 Lane 2 Adj 100 4 2 31 BIKE RATIO12 SLP Only Sets bike ratio to lane 1 and 2 4 2 32 BIKE 4 SLP Only Sets bike ratio to lane 3 and 4 4 2 33 BIKE RATIO SP4 AXD4 Only Motobikes exhibit very low profile In most cases motorbikes will not result in overlapping events ie presence of the vehicle on both loops overlapping at some point of time Motobikes are distinguished from the low chasis profile plus the length of the vehicle Bike ratio defines the chassis height ratio above which should be considered for bikes when none overlapping events occur Classification of motobikes is made 47 If the length is below 3 m and the chasis profile is above bike_ratio Syntax Bike ratio lane 1 lane 2 gt Defaul setting is 120 for both la
40. e loop If all 4 led s are flashing then the module is in a default state If the X pattern is displayed then it is safe to remove the CF card and replace it The LED s switch off after approximately 10 minutes to conserve power 13 CF Card slot Slot in Compact flash cards To hot swap press and hold the approximately 5 seconds The LED s will show a X pattern Remove and replace Hard swap after removing the card please wait 60 seconds before re inserting the card RS232 Modem This is a full handshake modem port Connect to the modem using the 9way D type standard cable supplied by the modem manufacturer connector 2 4 2 Rear Panel of the Classifier The figure below displays the classifier rear connections as detailed in the following table The Loop Connectors comply with Highways Agency MIDAS TR2169 Outstation specification standard LOOP LOOP LOOP LOOP RS 485 RESET 1 2 3 4 NoRM PROG emm DC Power input This is a 2 pin connection for the DC input supply This must be in the range 4 18 volts DC Loop Connector One 8 way connector which connects to the Loop Interface cable A CAUTION It is essential to maintain the connection order of loop relative to the monitoring lane otherwise the loop signals will not be interpreted incorrectly and vehicles will not be detected Lanes are assigned lane 1 loop 1 amp 2 Lane2 loop 3 amp 4 RS485 Network The 2 Pins labe
41. e ratios are not set correctly small cars and high chasis 4WD vehicles may be classed incorrectly 9 1 6 Classification Ensure that correct classification is selected 9 1 7 Site name amp Site number Ensure that the site name and site number is setup 9 1 8 Speed measurement scale Ensure that speed measurement scale is apprpriate ie Mph or Kph 9 1 9 Log file Check the log file is opened or binary vehicle record file is open 9 2 Site Operational check Using the terminal type VBV 3 Press the small front panel switch enable led indicators Wait for vehicles to pass to ensure that the led s are correctly indicating the presence of the vehicle as it passes over the loop Check the terminal shows the vehicle by vehicle line Ensure that the vehicle length speed and class are correct For advance site operational check MicroDial is required which will display the signature profile of the vehicle 77 Chapter 10 MAINTENANCE 10 1 Storage The unit can be stored without any time limitation There are no volatile components such as internal battery When in storage it is recommended that the connectors are covered to avoid dust build up This can be normally done by leaving the unit with a compact flash card connected and with all the loop and PSU connectors as supplied connected USB and serial should be appropriately covered The internal PCB is conformal coated to provide enviromental robustness to operate in wet and h
42. ed from a PC through a standard USB port The download process will copy the firmware to the non volatile internal flash memory Note this 12 is not the compact flash which is external non volatile memory The internal flash size is 390K The internal flash can be programmed between 100 and 1000 times The download procedure is detailed below 24 Classifier Front and Rear view 241 Front view LOOP STATUS STATUS CF 1 3 CTRL CF e CF LED Red LED When the CF CTRL switch is pressed and if the CF card is saving data into a file the Red LED will turn on for up to a second Every time the data is written to the CF card the LED will flash Status Green LED Green LED When Powered on it will flash every 2 seconds If the CF card is not Heart Beat plugged in on Power up it will stay on for initial 10 seconds before reverting to normal flash After 10 minute the LED s will shutdown Led indicators will turn on if the Push button is pressed CF Pressing momentarily will enable the led indication for approximately CTRL 10 minutes Push button If the user presses and holds this button for approximately 5 seconds the loop status LED s will flash in a X pattern and the user can safely Switch replace the CF card USB Modem The USB B mini port allows direct connection to any host PC USB port Connector Loop Status This normally Indicates loop presence which each loop coming on as a LED s vehicle passes th
43. er is valid Suspect is defined as a parameter whose measurement either fell outside the expected values or that the value was not expected In the case of straddle it signifies the vehicle was straddling both lanes 4 2 12 VBV Count reset Forces the VBV count to be reset to 0 The first vehicle following count reset will be 1 count reset VBV 3 SITE NOT SET SITE Number 1 CLASSIFICATION EURO 6 SPEED Kph Length CENTIMETER Gap 1 10 DATE TIME COUNT LANE LENGTH SPEED CLASS HDWAY AXLES HEIGHT PW DIR 2007 08 06 10 30 38 00000001 11 304 37 2 509 512 2 71 332 The unit will automaticall reset to 0 on overflow Maximum count is 99 999 999 Each unit thus can count upto 100 million vehicle before overflow The maximum vehicle record able to be stores in a 2G compact flash card is 55 million vehicles individual records 4 2 13 VBV_SEND_STOP The units can send unsolicited binary vehicle records This transfer is normally setup by sending the approriate binary request packet Normally this transfer is started and stopped from MicroDial or suitable program equiped to handle binary protocol If the unit for any reason was started to send unsolicited live traffic data but not stopped and a terminal was to be connected this command may be issued to stop such transfer 37 4 2 14 EVENT The EVENT command send loop event output to the terminal The event command
44. eserved state is recovered 525 Cold start the unit Assumes default state Time and date must be set to enter normal mode 4 2 ASCII Terminal Command Description The following subsection describe the terminal commands 4 2 1 Help The Help command will provide an on line listing of pertinent terminal commands with their listing The following table displays the help command output to a terminal Please note that future versions may modify or append to this list Application Vehicle Profiler Version 2 05 Date 11 07 2007 Device Address 15 Vehicle by Vehicle Monitoring VBV VBV 1 2 OR both lanes VBVOFF Turns vbv off Event Monitoring EVENT Events 1 2 or both 3 EVENTOFF Events 1 2 or both 3 LOOPSTATUS Returns ref s LIVE To turn off LIVE lt CR gt OOPSEP LANE1 OOPLEN LANE1 cm DMS EM where E 0 Standard VBV M 0 Kph VBV Store and Binning of Data Binary files BIN STORE Bin Save period Secs VBV STORE L 1 Lane 1 2 1 on 0 off Logging All screen information to text file OPENLOG Opens log file CLOSELOG Turns the Logging off ROLLING O OFF 1 ON CF used as rolling buffer PRE STATE Preserve State 1 3600 secs RESET Warmstart COLDSTART ERRORS STATUS RECOVER sector id number of sectors AUTO RECOVER 0 START 1 CONTI No of sectors FAT16 File system commands DIR FOPEN
45. fat Fix stati byte int int byte short short int short short d size fals c final int OID AppOID SlpState fat OID Num Fats Fat Start P Start Secs Cluster Bytes Sector Secs Fat Root Start Res Secs 71 Chapter 6 MULTIDROP NETWORK E ach unit runs multidrop MASTER SLAVE protocol These are packet based conforming to the packet described in section 5 above The setup is simple put the appropriate link for the lane mask and just connect them together Each individual slaves should be setup appropriately with MicroDial or a terminal Multidrop two wire distance up to 4KM length to each unit A A B B The MASTER device will hold all traffic data individual slave device will hold their own as backups MASTER should also host GSM modem 6 1 Address links amp Lane mapping The MASTER or SLAVE mode operation is selected by the address links Hence each unit enable the appropriate protocol Table below shows the link configuration to address mapping Within the network each unit must be set with a unique address e If no links are connected device assumes STANDALONE mode This shuts down the RS485 receiver and transmitter to save power Where there is a requirement for 16 lanes for SP4and 32 lanes for SP4 SLC4 a separate firmware is required which will need to uses this STANDALONE address e falllinks are connected it assumes the MASTER role MASTER device always assumes lane 1
46. file operation is complete 4 2 16 Close Log The closelog command will close the log file if logging is enabled otherwise no action is taken Closelog whilst logging closelog 39 gt Log Closing 2007 08 12 10 49 13 CLOSE SECTOR 531 File Close LOGDATA TXT Write Sector 6 Cluster 114011956087154170887 Write Sector 251 Cluster 114011956087154170887 4 2 17 VBV Binary Record file open VBV_OPEN The units can be configured to save VBV file records within a BINDATA DAT file The unit only allows either the binary record saving or text file both can t be done at the same time vbv open Open file BINDATA DAT gt 91 File name Size Sector BINDATA DAT size 00000000 sector 0000024F no more files gt 109 Binary VBV File Enabled 4 2 18 VBV Binary Record file close VBV_SAVE If a BINDATA DAT file is opened the file will be closed vbv save gt 109 Logging Disabled Binary VBV File Disabled gt 91 File name Size Sector BINDATA DAT size 00000000 sector 0000024F no more files 4 2 19 Query log saving status Log The log status can be queried by typing log Logging is enabled ie LOGDATA TXT file open gt 109 Logging Enabled 40 VBV Record saving eanbled ie BINDATA DAT file open log Binary VBV File Enabled No data is being saved in the CF card le both LOGDATA TXT and BINDATA DAT
47. h parameters are included in the standard output The extended version includes all the parameters shown above This basic statistical data is used to calculate further statistics on a lane by lane and site by site basis see below 3 3 Classification Processed vehicles are passed through the selected classification algorithm There are five classification algorithms only one is run at any one instance Class Name Number of Vehicle types EURO 6 6 DOE INI5 5 DFT Core 16 AUSTROADS 12 21 User defined 24 DFT Core censor is issued for UK only AUSTROADS are issued for Australia only The classification are based on Length Relative chassis height Number of axles Axle separation In addition a user may define their own dynamic classification tables 3 4 Data Storage The VBV data is stored in the compact flash card The storage format is FAT16 file system The compact cards must be formatted to FAT16 using any standard PC before placing it on the unit The unit supports two methods of data storage which are binary records or ASCII log file The files can be read by a PC or PDA CAUTION If files are read with a PDA DO NOT Re insert the CF back into the UNIT without reformatting it write a temporary file to the CF card with extended naming The unit allows two kind of data storage Storage Format File Name Ascii LOGDATA TXT Binary Records BINDA
48. haracters and appropriately route them to the graphical window and signature byte However a dump terminal will just clog up the screen with Isignature data 52 Syntax Sig to screen Where n 0 screen output is disabled 1 Screen output is enabled Default signature to screen is enabled sig to screen 0 Signature to Screen disabled sig to screen 1 Signature to Screen enabled 4 2 41 FAST SCAN Loop scan sampling frequency can be set to fast or slow using this command Syntax Fast scan n Where n 0 slow loop scan 1 fast loop scan Default is Fast scan fast scan LoopScan Fast 15 fast scan 0 Committed State CRC 6d2e Setup CRC c430 LoopScan Slow 2ms fast scan 1 Committed State CRC 1317 Setup CRC 5365 LoopScan Fast lms 4 2 42 MODEM_TYPE This command allows to select the internal modem driver Syntax Modem_type lt modem_id gt Modem Id Description Settings 1 GSM Wavecom modem 9600 N 8 1 9600 n 8 1 Full hardware handshake 2 US Robotics 57 6k 57600 n 8 1 Full hardware handshake The default modem type is WaveCom 1206b modem type Committed State CRC 58a4 Setup CRC 5365 53 Modem WaveCom_1206B modem type 2 Committed State CRC 934a Setup CRC 9399 Modem US Robotics modem type 1 Committed State CRC 4478 Setup CRC 5365 Modem WaveCom 1206B 4 2 43 MODEM INIT The co
49. he latter defaulting to a modem layer The modem layer of the RS232 can be turned off from USB port or device can simulate by setting the DCR level ON The RS485 message interface is separted The USB port baud is fixed to 57 6kbaud Whilst the RS232 modem port switches according to modem type Hence if it is GSM then it automatically switches to 9600 if itis US Robotics then it switch to 57 6KBaud The PDA MicroDial Lite application connects via the serial port will simulate the modem connection and automatically switch to the appropriate baud rate This ensures that irrespective of modem enabled or not PDA can always connect to the classifier PC applications must connect to the module via the USB or ensure that modem is disabled Both ports can operate simultaneously The RS485 is a network communication port running a master slave protocol The primary function of this port is for extending the classifier using multi connectivity It is possible with suitable PC connectivity hardware that messages can be transferred between modules and a permanently connected PC 3 8 Local Terminal The classifier has a terminal interface In addition to packet protocol Using hyper terminal or other suitable terminal software the classifier can be set up and data monitored or retrieved using the terminal software The remote dial up connection may also be established using Windows hyper terminal 25 Chapter 4 COMMUNICATION PROTOCOLS The
50. ite sector of the file vehicle count file open state file fat area etc are dynamic states The unit stores both fixed and dynamic states into the non voltile flash inside the compact flash card If the unit went through a power failture it recovers the state This allows the unit to be impervious to any power failures Simply putting after power is restored it operates as normal as if no power failure occured Pre state allows the user to setup the time in seconds to save the state This is a variable from 1 second to 3600 The deafult is 30 seconds pre state Preserve Interval 30 secs 56 pre state 3601 Syntax error Try PRE STATE Interval 1 3600 secs pre state 3600 Committed State CRC be3 Setup CRC 5948 Preserve Interval 3600 secs pre state 30 Committed State CRC 54ba Setup CRC 5365 Preserve Interval 30 secs 4 2 49 PRE COUNT RESET A count is kept on the number of times the data is stores in the dynamic sector where the state is stored This count is used to keep track of how many times a sector has been written If it exceeds 500 000 writes the next sector is used This allows the unit to use sectors within the CF card conforming to the the write cycle specification To inspect the current write cycle examine the output from the SVAR Pre State Sect 499985 Writes 57718 The first parameter is the current sector used and the second varible is the number of time that
51. itted State CRC 7d29 Setup CRC 7ba4 DATE 2007 09 18 Whilst in default mode the unit will not save the state 61 Chapter 5 BINARY PACKET MESSAGE PROTOCOL 5 1 Scope This section provides a brief description of the binary packet protocol and the related objects This chapter doesn t describe the parameters within the objects The following sections limits the description to the protocol both message and data link layer and also the message objects and the composition of the message objects The objects described are limited to those which are transmittable between the unit and the peer PC It does not describe other objects that are internal to the unit 5 2 Data link layer RACCOM packet protocol 5 2 1 Frame format start flag 1 byte gt lt address 1 byte gt lt ctrl byte gt lt tx_seq_no 1 byte gt lt rx seq no 1byte gt lt length 2 BYTE gt lt MESSAGE VARIABLE gt lt CRC CCITT 16 2 5 gt Where START FLAG START_FLAG 0x7E DLE OX7 5 2 2 Byte stuffing algoritham Byte stuffing is implemented This ensures that start flag is allowed in the packet itself lt DLE gt lt STARTFLAG gt lt DLE gt lt DLE gt DLE character is removed on each of above occasions Address character is fixed for the device is set to 0 2 Control characters are PKT_INFO 0x20 PAKT POLL 0x21 62 5 2 3 Transmit and Receive Sequence numbers Sequence modulo is implemented Currently this is 128 Thi
52. l A and B are used for the RS485 multi drop 14 connector Power switch Reset switch Normal Progra m Switch connection The two left hand pins are used for the optional power switch for external Modems This is only accessible using a small pin The reset is a warm reset if the CF card is plugged in otherwise it will result in a full coldstart This switch allows the firmware to be upgraded To upgrade the internal firmware this switch must be placed in the Prog position CAUTION It is essential to position this switch to Normal operation position otherwise the classifier will not work 2 4 3 How to download new firmware LOOP LOOP LOOP LOOP RS 485 RESET pe 1 2 3 4 1 Move the dip switch at the rear to right PROG position 2 Press the reset button AT THE REAR using a pin Run flasm16c exe which is third party software freely available from the internet 1 Select the Flash tab and tick all check boxes Using the browse select the appropriate firmware hex file as shown below 15 TASKING M16C Flasher File Help Flash Target Communication Absolute Object File File C RAACOM Releases modsig_205 hex ID foo 00 00 00 00 00 00 Flash Actions Blank check Fulerase Program Verify Start No corresponding ID file found 2 Select the Target tab and ensure is 16 20
53. le loop each single loop events are processed individually Events from loops are used to identify the vehicle and calculate the speed and length The table below shows the VBV definition VBV Field definition Std Field Description Y Date The date format YYYY MM DD Y Time Time 24 Hour time format HH MM SS 00 00 00 to 23 59 59 Y Vehicle record A unique sequential number range 0 99 999 999 100 million vehicles number Y Lane number SP4 SLC4 Each lane contains a pair of loops Lane 1 is formed by loop 1 and loop 2 Lane 2 is formed by loop 3 and loop 4 If an address header is put inside board the lane lane offset 2 i e lane number is added to the address offset Address offset 0 is always for the master device Offsets 1 to 7 are for slaves Hence slave 1 will identify lane 3 and 4 etc Daisy chained SP4 SLC4 s can have 16 lanes SP4 SLC4 Each lane contains a single loop Lane 1 is loop 1 Lane 4 is loop 4 If an address header is put inside board the lane lane offset 4 i e lane number is added to the address offset Address offset 0 is always for the master device Offsets 1 to 7 are for slaves Hence slave 1 will identify lanes 5 to 8 etc Daisy chained SLP can identify up to 32 lanes Y Length Range of length is 1 cm to 65 535 cm inclusive in steps of 1 cm The length 19 Std Field Y Speed Y Class Description equations are given below length Dspeed LeadingLoopOff
54. like the VBV command allows individual lanes to be monitored The purpose of the EVENT command is for site diagnosis Syntax EVENT n Loop event with lane filter Where n 1 for lane 1 only n 2 for lane 2 only and n for all lanes EVENTOFF Turn EVENT live output to terminal OFF event 3 Lane id idx loop ontime offtime chassisheight 1 020 0 1 36206790 36207098 67 12 150 30 1 1 1 1 1 1 312 2 2 1 i 1 1 1 1 021 1 0 36207027 36207337 66 22 128 30 289 4 1 1 1 1 20 4 263 9 1 1 1 1 1 022 2 0 36210725 36211370 64 2 2 211 26 454 31 1 1 1 1 346 28 589 7 1 1 1 023 3 1 36211206 36211851 67 2 2 225 26 441 33 1 1 1 1 360 28 630 4 1 1 If the unit is set to logging mode the events will be recorded prior to the respective VBV line The Event output parameters Lane The lane to which the loop is mapped id Event ID MOD 256 idx internal algorithm index Loop ontime Loop presence detected time in milliseconds 24 hour clock Loop offtime Loop presence off time Chassisheight relative height In addition to this conventional event information each event output is tagged with the abstract format of the signature waveform These are appended after the chassis height For SPA AXDA4 Overlapping events are necessary to classify a vehicle The exception to this rule is motorbikes Overlapping events are where leading and trailing loop ON time
55. losed and the compact flash card safely removed is one of the following methods 1 By pressing the front button and removing when the LED flash an X pattern 2 From the terminal issuing closelog or vbv save command appropriately 3 Issuing a close file command from the packet based protocol Removing compact flash card without closing the files will result in the compact flash card file not able to read by the PC PDA If the compact flash card is removed without closing the file 1 If the unit setup was not changed It can be replaced in the unit and the file can be closed as above 2 If the unit behaviour was modified then power off the unit place the compact flash card and then power the unit on close the file as above 23 3 5 Data Transmission See section 4 Data communication protocols 3 6 Faults To detect the faults of the unit The following commands should be used 3 6 1 Loop status This command will show which of the loops are tuned and are not tuned Those which are not tuned are either Open circuit or loop inductance is faulty 3 6 2 Event Reporting an event when vehicle passes over the loop 3 6 3 Status Shows if the CF card is detected and the size of it 3 6 4 System variable SVAR Reset Number of Forced Resets 3 7 Communications The classifier supports 3 physical ports e USB 24 RS232 Modem RS485 Network The USB and the Modem port provide the same message interface with t
56. master will save the VBV data of all the slave units sequentially In addition each slave device will save its own data Each unit can buffer on the network queue up to 10 vehicles 6 5 Polling rate vs Vehicle rate Each slave will be polled at least once in every 0 6 seconds If all the units are connected the polling rate is improved This is because a poll reply is normally 30ms whilst a poll no reply cycle is 100ms Each slave unit is able to store up to 10 vehicles in the network queue This means the system will be able to cope at the worst case vehicle rate of 10 0 6 16 vehicles per second on both lanes or 8 vehicle second per lane It is practically impossible to get 8 vehicles per second on a lane 73 Chapter 7 THE MICRODIAL SOFTWARE 7 1 Overview The MicroDial Software provides support for Local and Remote installation database telemetry data retrieval site reports as well as the creation and analysis of reports 74 Chapter 8 INSTALLATION 8 1 Classifier Installation Qty Part Number Description Outstation unit Compact Flash card USB cable GSM Modem Modem Serial cable PSU n ln n n 8 2 Procedure Remove packing and ensure that unit shows no signs of physical damage Record the serial number and location of the unit Plug the Loop Interface to Terminal Blocks cable into the rear of the unit Secure each individual screw connection 4 Ensure loop activity led reflect vehicle over the loop
57. mitted State CRC e73b Setup CRC 7a24 LOOPSEP 150 150 The above extract shows the unit loop separation changed to 150cm for lane 1 and lane 2 When loop separation is changed the unit will commit it to the setup in the non voltile memory The setup data will be commited to both the default and state mirror sector Valid range of loop separation is 30 cm to 600 cm LOOPSEP 700 700 Out of Range gt 30 600 cm Syntax error Try gt LOOPSEP LOOPSEP LOOPSEP 150 150 The above extract shows the loop separation being set which is out of range 4 2 7 Loop length Loop length is the length of loop which traverses the vehicle flow The length of the loop must be set representing as accurately as possible the actual loop length For dual loop classfiers the length of the loop with in a lane pair must be the same Loop length is in CENTIMETRES 4 2 7 1 SP4 SLC4 Loop length Syntax To query loop length type LOOPLEN To setup loop length LOOPLEN LANE 1 LANE 2 gt LOOPLEN 200 200 The default loop length is in 200 cm 2m To change loop length type gt 250 250 Committed State CRC 139f Setup CRC 3e LOOPLEN 250 250 The above extract shows the unit loop length changed to 250cm for lane 1 and lane 2 When loop length is changed the unit will commit it to the setup in the non voltile memory Valid ra
58. mmand will initialise the modem This command may be used if a modem is hot swapped Modems are initialised on reset or when modem type command is issued Syntax Modem init modem init 4 2 44 MODEM Modem command can be used enable or disable the modem drivers If the modem is disabled then the serial port may be used by a dump terminal ie hyper terminal Syntax Modem lt n gt Modem Where n 0 disables the modem driver n 1 enables the modem driver Default modem is enabled modem 0 Modem Disabled modem 1 1 Modem Enabled 4 2 45 GSM_ROAMING GSM Roaming command allows to set the GSM roaming time varable and enable or disable the roaming algoritham This allows the GSM modem driver to issue GSM network initialisation command GSM roaming is only valid if GSM modem type is selected Syntax Gsm roaming Gsm roaming Where n 0 255 54 If n 0 then GSM roaming is disabled else time is set in hours Default roaming is enabled and set to hourly roaming gsm roaming GSM Roaming 1 hours gt 35 gsm roaming 0 Committed State CRC 5e3b Setup CRC 6a68 GSM Roaming disabled gsm roaming 25 Committed State CRC 30cc Setup CRC bdf GSM Roaming 25 hours gsm roaming 2 T 35 C56 Committed State CRC 72fc Setup CRC 6a68 GSM Roaming disabled gsm roaming 257 Committed State CRC 16cc Setup CRC 5365 GSM Roaming 1 hours 4 2
59. nerClass 256 SysOID ModSetup dynamic OID InnerClass 259 5 3 4 SP4 specific object 5 Object ID Description Value AppOID ModuleState_OID Container 5024 AppOID ModuleState sys OID InnerClass 5027 AppOID ModuleState file OID InnerClass 15030 AppOID ModuleState fat OID InnerClass 15033 5 8 5 SLP specific objec idt details Object ID Description Value AppOID SlpState OID Container 5082 AppOID SlpState sys OID InnerClass 5085 AppOID SlpState file OID InnerClass 5088 64 AppOID SlpState fat OID InnerClass 5091 5 8 6 System wide object composition The following section defines the transmittable objects The object composition below is for illustrative use only it does not show the structure length of classes or variable parameters For the C structure please contact R T E M Ltd 5 3 6 1 ClassTable class ClassTable table table_obj new table class table Fixed size fals static final int OID SysOID ClassTable_table_OID short validCode byte class_id short inter gapl short inter gap2 short inter gap3 short inter gap4 short min length short max length byte chasisFactor byte axles byte axleGapTol byte use_axlegaps 5 8 6 2 FileData class FileData raw raw obj new raw class raw Fixed size fals static final int OID SysOID FileData_raw_OID byte bytebuf int sector id byte subSector 65 5 3 6 3 Mo
60. nes bike ratio Bike Height Ratios 120 120 bike ratio 300 300 Committed State CRC 9f08 Setup CRC 63d8 Bike Height Ratios 300 300 4 2 34 DVDT The differential algoritham profile the waveform on realtime The sensitivity setting allows to tune the profiling algoritham Syntax Dvdt n Where n 1 to 10 1 being high sensitivity and 10 being the lowest sensitivity The default is 3 Care should be exercised when changing this setting dvdt Differential Sensitivity 3 dvdt 11 Out of Range gt Try 1 10 Differential Sensitivity 1 dvdt 10 Committed State CRC a5fd Setup CRC 43fd Differential Sensitivity 10 dvdt 3 Committed State CRC 31c0 Setup CRC 692d Differential Sensitivity 3 4 2 35 DVDTW This setting covultion setting for the differential algoritham Syntax Dvdtw n Where n 5 to 50 gt dvdtw win 50 dvdtw 0 Dvdt win 50 48 dvdtw 10 Committed State CRC cd72 Setup CRC 61c6 Dvdt win 10 dvdt2 50 Committed State CRC 7ceb Setup CRC 692d Dvdt win 50 4 2 36 LIVE Continuos signature output The signature of any of the loop can be printed out on the serial port or logged in the compact flash card on realtime Syntax Live lt loop number Live Where loop number is 1 to 4 Live without any parameter turns off the live output live Usage LIVE n 1 to 4 Turn off
61. nge of loop length is 30 cm to 600 cm 32 LOOPLEN 700 700 Out of Range gt 30 600 cm Syntax error Try gt LOOPLEN gt LOOPLEN LOOPLEN 250 250 The above extract shows the loop length being set which is out of range 4 2 7 2 SP4 SLC4 Loop length The SP4 SLC4 has to setup loop length for each lane based on single loop The loop lengths are grouped as lane 1 2 and lane 3 4 The command is identical to looplen comand described as above Syntax LOOPLEN_1 LOOPLEN 2 To change loop length LOOPLEN 1 lt lane1 gt lane 2 LOOPLEN 2 lane 3 gt lt lane 4 4 2 8 Status Typing Status provides an output detailing the unit s current operating status status Vehicle Profiler Ver 2 05 Release Date 11 07 2007 Device Address 15 SITE SET SITE Number 1 DATE 2007 08 05 TIME 11 51 03 42660438 Logging Disabled Binary VBV File Disabled Detected 512MByte End of CF File Closes Signature Capture disabled Signature to Screen enabled Modem Enabled Modem WaveCom 1206B GSM Roaming 1 hours GSM Power switch timer disabled GSM Power Auto ON in hours 120 Extended VBV with Axles amp Headway amp CLASSIFICATION EURO 6 SPEED Kph Unidir Straddle filter Lane 1 OFF Lane 2 OFF Preserve Interval 20 secs SLAVE DEVICE The status shows e Device type ie profiler single loop classifier or
62. output Capture next will record the signature of the next vehicle within the cf card indicating the position where the capture was stored The capture command is automatically disabled at the end of the reording Syntax Capture next n where 1 to 4 for the loop 50 Recorded signature may be printed using recover comand Please note that this command will disable the sig_to_screen Log must be enabled The default setting is disabled Following trace shows capture of loop 1 The signature is then replayed using the recover command capture next 1 Capture Start Sector 1 690 gt 2208 2207 2208 2207 2206 2205 2205 2203 2203 2203 2202 2202 2201 2201 2199 2199 2198 2197 2196 2195 2195 2193 2192 2192 2191 2191 2189 2188 2188 2188 2186 2184 2185 2183 2182 2182 2181 2182 2180 2181 2180 2180 2179 2180 2179 2181 2181 2180 2180 2181 2181 2181 2182 2181 2181 2182 2181 2183 2182 2182 2183 2182 2182 2182 2183 2183 2183 2183 2182 2183 2183 2183 2182 2182 2183 2183 2182 2184 2183 2184 1 003 3 1 76196887 76197574 63 12 274 35 1 1 1 1 1 1 610 2 PL qp pE BE 2183 2183 2183 2182 2183 2183 2182 2182 2183 2182 2185 2186 2186 2188 2187 2189 2189 2190 2192 2192 2193 2194 2194 2194 2196 2197 2198 2198 2199 2199 2200 2202 2202 2202 2203 2204 2204 2204 2204 2204 2206 2207 2206 2206 2207 2207 2208 2209 2209 2209 2208 2209 2210 2210 2211 2210 2212 2211 2211 2212 2212 2212 2212 2213 2212 2212 2213
63. rting sector of a file is displayed in the directory table gt 91 File name Size Sector LOGDATA TXT size 00000200 sector 00000210 BINDATA DAT size 00000000 sector 00000218 no more files For different CF card sizes starting sector is different The recover command without a paramters will automatically point to the FAT area where the first file starts gt gt Log Starting 2007 10 03 14 57 07 SITE NOT_SET SITE_Number 1 CLASSIFICATION EURO 6 SPEED Kph Committed State CRC 296c Setup CRC 8687 Recover Last sector id 532 Recover with the sector will start printing from the sector In the below example the sector equals to start of the logdata txt file see dir output above recover 210 T 28 C gt Log Starting 2007 10 03 14 57 07 42 SITE NOT_SET SITE_Number 1 CLASSIFICATION EURO 6 SPEED Kph Committed State CRC 296c Setup CRC 8687 Recover Last sector id 533 Recover sector followed by the count of sectors to printout recover 210 1 gt Log Starting 2007 10 03 14 57 07 SITE NOT_SET SITE_Number 1 CLASSIFICATION EURO 6 SPEED Kph Committed State CRC 296c Setup CRC 8687 Completed CF Scan Last Sector 529 4 2 28 AUTO Auto recover command will automatically point to the start of the sector where the first file starts The
64. s defines the window of frames Ack is inherent with the sequence from the peer device 5 2 4 Cyclic Redundancy Check CRC is carried out on the data message only CRC calculation strictly comply with 16 bit FCS CRC 16 as defined by ISO 3309 Please note from versions 2 0 of SP4 and 1 17 SP4 SLC4 onwards strictly comply with 1503309 525 frames Frame layer handshake protocol is currently not implemented due to the implementation of such protocol in the Message layer i e REQ REPLY ACK pardigm 5 3 MESSAGE Layer 5 3 1 Message description The MESSAGE part of the packet is passed to the application layer The message format described below message lt ADDR 1 byte gt lt LENGTH 2 bytes gt lt MESSAGE ID 4bytes gt lt DATA VARIABLE gt where Length MESSAGE ID DATA ie 4 data length Maximum message size 32768 Message ID s are unique describes an object 63 5 3 2 Object Identifier OID crossreference table 5 8 8 System wide object details Object ID Description Value SysOID ModSetup OID Container 21 SysOID ModSetup common OID InnerClass 1124 SysOID VbvBins OID Container 1145 SysOID VbvBins_vbv_OID InnerClass 1148 SysOID FileData_OID Container 238 SysOID FileData raw OID InnerClass 241 SysOID ClassTable OID Container 247 SysOID ClassTable table OID InnerClass 250 SysOID TrafficData_OID Container 253 SysOID TrafficData td OID In
65. s overlap Those events that do not overlap are rejected Event output will specify these with an appropriate message For SP4 SLC4 Single events are used to map the vehicle This solely depends on the waveform analysis and statistical engines SP4 SLC4 can t set filter for lanes 3 and 4 To monitor events in these lanes Use EVENT 3 When EVENT 1 is used only loop 1 event is shown similarly for EVENT 2 4 2 15 Open Log 38 The command will open a logdata txt file if no such file exists or will append to logdata txt file if such file exits If the unit is already logging no action will be taken Opening file with no log file present new log file will be created gt 91 File name Size Sector no more files gt openlog Log LOGDATA TXT file Opening Open file LOGDATA TXT Log Starting 2007 08 12 10 36 04 SITE NOT_SET SITE_Number 1 CLASSIFICATION EURO 6 SPEED Mph Open log with existing log file the logdata txt file will new appended with new data dir File name Size Sector LOGDATA TXT Size 00000400 sector 00000210 no more files openlog Log LOGDATA TXT file Opening Open file LOGDATA TXT Log Starting 2007 08 12 10 39 32 SITE SET SITE Number 1 CLASSIFICATION EURO 6 SPEED Mph Open log when a logfile is already opened openlog Is Logging The open log will command will execute when all existing
66. sector is being written The unit will automatically read the sector count and correct the count value User is not expected to use this command If the compact flash card was changed without informing the unit ie press the front button or from reset then user may reset the count using this command Syntax Pre count reset gt Pre State Sect 1000209 Writes 7018 4 2 50 ystem variables SVAR This command lists all the system variable states gt Pre State Sect 499985 Writes 57718 Critical Interval 20 SetupCRC 20e2 StateCRC 9761 Resets 0 Forced Resets 0 Fault Code 20 57 ExtVBV 1 Classification 0 Rolling Buffer 0 ModemType 1 Roaming Hour 1 Differential Sens 3 Active Port 1 File Open 0 Log Open 0 ReadOnly 0 VBV Open 0 Tx Sector 528 528 64 Subsector Offset 63535623675449y 114011879121340208740 No of records 1 VBV Count 3026419197912550080 Num Fats 2 Fat Start 16273871783090162 6 Fat Start 1 251 Fat Start 2 114011857131107648007 Fat Start 3 114011857131107648007 P Start 0xa479e3926000039 Secs Cluster 0x8 Bytes Sector 0x200 Secs Fat Oxf5 Root Start 0 1 0 Res Secs 6 File Name LOGDATA TXT start cluster 0x2 start sector 0x210 Fat OpenCluster 0x2 file number 0 Fat OpenSec 0x213 end sector 0x214 file size 0x800 file size start 0x600 LOGDATA 1 BINDATA 0 gt
67. separation setup e Loop length setup e Lane adjustment factor setup Current average loop scan cycle count for every 10 millisecond Loop scan setup Fast or slow Signature capture tail end add in millisecond Current temparature Processor bandwidth Cpu service cycle count per millisecond Note the CPU service time 1000 Cpu_cycle micro seconds e Processor bandwidth Average CP Cycle count 4 2 10 Address The network address and lane mapping 4 2 11 Vehicle By Vehicle live output VBV Vehicle by vehicle text output to the terminal The VBV command allows monitoring live vehicle The output format is dictated by the VBV format selected using the DMS data measurment scale command The purpose of the VBV command is site diagnosis and remote real time vehicle monitoring Syntax VBV n Vehicle by Vehicle with lane filter Where n 1 for lane 1 only n 2 for lane 2 only and n 3 for all lanes VBV VBV status query VBVOFF Turn VBV live output to terminal OFF For SP4 SLC4 VBV can t be filtered for lane and 4 To monitor lane and 4 use VBV 3 When the unit is networked as a slave n must be set to 3 VBV Query with VBV set to off gt vbv 35 SITE NOT_SET SITE_Number 1 CLASSIFICATION EURO 6 SPEED Kph VBV printing is currently set t
68. te byte byte byte byte short short short byte int int int byte short int c final int OID AppOID SlpState sys OID validCode criticalSaveIntvalSecs extVBV clss siteName rolling modemType roamingHour scanCount difSensitivity bMask dvdtWindow siteNo 1 loop_length bikeRatio dailyGSMHour hourlyGSMmins spdMph straddleMs laneAdj SpareCRCed crcFixedSetup currTicks gDay gMonth gYear logOn fileOpen read_only vbvFileOpen logdata bindata showVBV showEvent captureLoop blockLivetoScreen avgSpeed avgPW avgLength activePort vbvCount last VBVCountSend lastTxSector lastTxsubsector txSubsectorSize lastBinSector 70 short short short byte byte byte int int short short byte byte byte byte byte file file_obj class file Fix binsectorOffset fileBufferIn no of records tx tailSig ledOnSecs faultCode writeCycles preState Sector resetCount crcForcedReset modem gsmAutoPowerCount sendVBV Sparel Spare2 new file d size fals stati byte short in in c final int OID AppOID SlpState file OID File Name start cluster Start sector Fat OpenCluster by in in in in by er cr cr fat fat obj class fat file_number Fat OpenSec end sector file size file size start open new
69. umid conditions 10 2 Operational Each unit is sophisticated electronic equipment using the latest chipset The PCB s are clipped into the case using no wire looms It is a single board device incorporating the very latest family of integrated components Normal procedure should be to return failed unit or replace the PCB 78 Chapter 11 TROUBLESHOOTING 11 1 Scope 11 2 Communications and Connections 11 3 Loops 79 Chapter 12 TECHNICAL SPECIFICATION Physical Dimension Width 170mm x Length 150mm x Height 40mm Weight Approx 500g Case 4mm thick high impact polymer Impact Protection Drop from 5m Ingress Protection IP54 Operational MTBF 100000 Hours Input Voltage 4v 18v Current 18mA typical Variable on CPU frequencies 10mA 15mA 18mA 32mA depending on the CPU frequency The current is derived using Kingston CF cards Scanning Rate Typical 1ms for 12mHz Variable to 10mS depends on CPU frequency CPU Frequency Std 12 MHz 1 5Mhz 6Mhz 24Mhz Real Time Clock 32khz crystal clock Temperature 20 to 70 Further extended temperature range available on request Storage amp Retrieval CF Card memory 256Mb 512MB 1GB 2GB File System FAT16 Data Retrieval Transfer Formats ASCII Transfer Reliable Packet based transfer CRC 16 bit Methods CF card reader using PC PDA GSM Dial up connection GPRS data streaming POTS Modem di
70. urned off to turn it ON type VBV 3 VBV On with no lane filter Extended VBV Output vbv 3 SITE NOT SET SITE Number 1 CLASSIFICATION EURO 6 SPEED Mph Length CENTIMETER Gap amp Headway 1 10sec DATE TIME COUNT LANE LENGTH SPEED CLASS GAP HDWAY AXLES HEIGHT PW DIR 2007 08 06 10 30 38 00000007 11 304 37 2 509 512 2 71 332 Short VBV Output SITE NOT SET SITE Number 1 CLASSIFICATION EURO 6 SPEED Kph Length CENTIMETER Gap 1 10sec DATE TIME COUNT LANE LENGTH SPEED CLASS DIR 2007 08 06 10 29 40 00000005 11 401 63 2 VBV command is primarily for outputing to the terminal live vehicle as they pass over the loop s Both SLP and dual loop provides the same VBV output VBV is automatically turned off if VBV was requested from a remote terminal via modem when the modem disconnects VBV Suspect Codes X If the VBV line is suspect then to each suspect line X code is appended The suspect code is a bit mask hence it could be a combination of any or all Description HEX Code Vehicle GAP suspect 1 Headway suspect 2 Speed suspect 4 Axles suspect 8 36 Length Suspect 10 Classification type suspect 20 Straddle suspect 40 Bit mask representation of the suspect code 0 straddle classtype Length axles speed headway 1 in the appropriate bit signifies the parameter is suspect 0 signifies the paramet

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