icListen Operations Guide - The Smart Hydrophone Company
Contents
1. 12 5 2 3 12 5 2 4 FFT Processing OPTIONS oci ecce due sace sedo dre doge 13 5 3 i Leien RL c CEP 15 5 4 Start Time and Duty Cycling 16 6 Additional Features 1 6 iiec iere cesi ce nene emi cen dans d s dent odd 17 6 1 Temperature ana cone tee E ete Age 17 Ocean Y Sonics icListen Operations Guide O June 17 2013 i 6 2 Battery MORICOFIDg iioi cutie edic trden tient 17 6 3 Buzzer Tm 18 6 4 Time Synchronization enmt ceret Re E REN E eee eR terne Ded ede ER ERREUR 18 6 5 Network DISCOVGEV i nne ae eR dre peser creed eeu Aceh pue Er eene gesteuert uas 18 6 5 1 UPnP Universal Plug and Play ii 18 6 5 2 MR RR CMM I 19 7 Logged Data Retrieval si een eene EAEE 20 7 1 iclisten Rettleval oett ae te 20 7 2 icListen HF Data Retrieval iii 20 8 Standard Operation Procedures Opel 21 8 1 Autonomous icListen HF Data Logger Data Recovery 21 8 2 Autonomous icListen HF Data Logger Deployment ss 22 9 C re and TETCHEDU SEP 23 9 1 Firmware Updates sn e te aie 23 9 2 ale 24 9 3 Retrieval arid Kegel 242. Figure 5 1 Sliding Window 0 overlap Figure 5 2 Sliding Window 50 overlap Figure 5 3 Sliding Window 75 overlap A sliding window can be used in combination with mean peak value and filtered processing When combined with these processing options the sliding window is performed first and the other processing option is performed on the resulting data icListen HF uses a 50 overlap for all spectrum data while icListen LF allows the overlap to be adjusted Ocean Y Sonics icListen Operations Guide O June 17 2013 13 5 2 4 2 Mean Average This form of processing will calculate the mean average power found at each frequency over a configurable averaging period The averaging period is the number of FFT data sets over which the average is calculated The mean value for each frequency bin is calculated as follows N 1 2 j 0 Where N Averaging Period Y Signal Power of frequency bin FFT Coefficient i Frequency Bin Number j FFT Data Set Number 5 2 4 3 Peak Value Detect Peak value detect processing keeps track of the maximum power level found at each frequency This can be configured to be done over a set number of FFT data sets or configured to reset the detected peak value only when data is retrieved from the unit For icListen HF this must be configured as a set number of FFT data sets reset when retrieved mode is not available 5 2 4 4 Filtered
3. sise 27 Figure 12 1 Noise response at 4 kHz sample rate 29 Figure 12 2 Noise response at 250 Hz sample rate ns 30 Figure 14 1 Subconn MCBH8M male face 32 Figure 14 2 Subconn MCBH8M male face nine 32 Figure 14 3 Subconn MCILSF female face een 33 Figure 14 4 USB pin pOSItIOTIS 33 Figure 14 5 Subconn MCILSF female face nier 34 Figure 14 6 USB PIN 34 Figure 14 7 Charger Seder odes tenis one tentent etre see nono ie IUe execs 34 Fig re 14 8 SYNC WIPES eser i epe Pra dere eee Dra ceu Ades us dx een decree Da ursa Ege eren dee see 34 Figure 14 9 Subconn MCBH8M male face 35 Figure 14 10 Subconn MCIL8F female face ins 36 Figure 14 11 RJ 45 Pin positions 36 Figure 14 12 Subconn MCDC8F female face 37 Figure 14 13 Subconn MCDC8F female face iii 38 Figure 15 1 Subconn MCBH8M male face 39 Ocean Y Sonics icListen Operations Guide O June 17 2013 iv 1 Overview This guide covers the use care troubleshooting and wiring of the icListen Smart Hydrophone The concept of the icListen Smart Hydrophone has been in development since 2005 Smart Hydrophones take the work out of gathering acoustic data in the ocean They supply data in real units processing it as needed before it is stored or sent to the operator Th
4. Ocean Y Sonics icListen Operations Guide June 17 2013 3 Quick Start Bench Setup It is important to test the Smart Hydrophone when it is first unpacked and before each deployment for best results The hydrophone works in air well enough to provide a good functional test Arrange a work surface large enough to hold the hydrophone cables and the PC used to run the Lucy software 3 1 Checklist 1 Hydrophone to be tested note its serial number 2 APC ideally the same portable one used to deploy the hydrophone with the Lucy software previously installed Ensure the PC has a suitable data port interface for the icListen instrument 3 2 Steps 1 Startup the Lucy program on the PC 2 Connectthe icListen to the link cable and the data link to the PC 3 Click the Link Setup button in the lower right In the popup window select the appropriate Connection Type If using RS232 RS485 or USB select Auto Connect to search for the connected icListen If using Ethernet enter the IP address of the connected icListen When successful close the window For Ethernet units icListen LF uses port 23 for communications and icListen HF uses port 50000 Figure 3 1 Lucy USB RS232 connection display The IP address of the instrument must be known icListen units are configured to acquire an IP address using DHCP by default and therefore must be connected to a network running a DHCP server Contact Ocean Sonics if you n
5. 14 5 icListen LF Ethernet Interface sisi 35 14 6 Ethernet Cable unie eter E ade Poe E a tenter eden 36 14 7 icListen LF Shorting Jumper 37 14 8 icListen HF Shorting Jumper 38 15 Recommended Corinectors uice indies cte teer ER eta sre Pe nbn Po cha dae ee intense 39 Ocean Y Sonics icListen Operations Guide June 17 2013 iii Table of Figures Figure 1 1 icbisten Family en Rene etant ete 1 Figure 2 13 Glisten eR 2 Figure 2 22 1cListen MR 3 Fig r 2 3 cLISt n rre ip en Doct dea PEE VEN 4 Figure 2 4 iclisten HF REP etes 5 Figure 3 1 Lucy USB RS232 connection display 6 Figure 3 2 Lucy Ethernet connection display sise 7 Figure 3 3 Lucy status display n sentis esas assesses siia ss asses 7 Figure 3 4 Lucy example display inner 8 Figure 4 1 Lucy main display 9 Figure 5 1 Sliding Window 096 overlap iii 13 Figure 5 2 Sliding Window 5096 overlap eene nnne nennen nennen ns 13 Figure 5 3 Sliding Window 7596 overlap eene nnne nnne nnne nennen 13 Figure 5 4 TWP ROMs ice eoe ese eech A Seege deeg Ae Eech AE 15 Figure 10 1 lLucyistatus Dar den a A eege d Ae dee AE Eurus tetes ie del 26 Figure 11 1 Functional block diagram
6. 9 4 Connector Care E b 25 9 5 Nell 25 9 6 Long Term Deployment 25 10 Troubleshooting icListen iii 26 10 1 Instrument not COMMUNICATING sise 26 10 2 need to find out the icListen firmware version and serial 26 10 3 The information displayed on the web interface is blank or not updating 26 10 4 I m starting to miss data in my icListen HF WAV logs 26 10 5 Ican t connect to my Ethernet icListen s IP address eese 26 11 Functional Block 27 12 instrument PerformaliCe iecore coti ra REESEN Eege in 28 12 1 Response at 4000 Samples sec is 29 12 2 Response at 250 Samples sec iii 30 13 Options and Configurations nennen seta g assai ases entitas ananas nnn 31 Ocean Y Sonics icListen Operations Guide June 17 2013 ii 14 Wiring Tables TOF ICLISUteD siete o 32 141 icListen LF USB Interface i Rad ETER Retta 32 14 2 icListen HF Ethernet Interface ss 32 14 3 iclisten Te UE ER 14 4 USB cable icListen LE w battery and 34
7. This form of processing performs infinite impulse response IIR filtering on the power levels detected at each frequency The type of filter used is an exponential moving average The weighting of the average as well as how frequently the icListen will transmit results are both configurable in this mode This has the effect of smoothing the previous few FFT results The filtered data for each frequency is calculated as follows 2 yd LAN THX Gy Where N Weighting Factor Y Signal Power of frequency bin C FFT Coefficient i Frequency Bin Number j FFT Data Set Number Ocean Y Sonics icListen Operations Guide June 17 2013 14 5 3 Epoch Mode In Epoch mode icListen LF HF can be configured to detect specific signals in the real time data and perform a number of tasks based on those signals An icListen LF HF can check the data for 5 independent triggers as shown in the following figure Figure 5 4 Epoch Triggers Epoch triggers consist of 3 settings The first setting is the signal conditions required to activate the trigger This is called the test Secondly there is the hold which is how long the action lasts after the triggering signal disappears Finally there is the resulting action which is the action icListen takes when triggered The actions available to icListen LF are sending a signal pulse logging data or preparing data to send when scanned The a
8. Click the apply button and check the Lucy status line to ensure that the setup was accepted 7 Open aninternet browser and type the IP address of the icListen into the address bar 8 Navigate to the data page and follow the link on the page to navigate to the data folder on the icListen 9 Download and archive all logged data all txt and wav files 10 The data on the instrument may now be cleared Type the IP address of the instrument in the address bar of your browser and click on the data tab Press the Clean Data Partition button and then OK on the confirmation popup Wait 1 minute for data clearing and reboot 11 If the unit must be powered off for storage disconnect the power adapter from the test cable and press the Power Down Reset button on the settings tab of the web interface Note that in order for the unit to start again external power will need to be applied 12 icListen is now ready for storage or battery recharging Ocean Y Sonics icListen Operations Guide June 17 2013 21 8 2 Autonomous icListen HF Data Logger Deployment This procedure is used when deploying icListen HF as a data logger In this setup the icListen logs data internally while being powered by a battery the internal battery or an external battery may be used This procedure requires access to e A fully charged icListen HF e APCrunning Ocean Sonics Lucy software and any web browser e AnicListen HF test cable
9. both file formats also store additional information such as temperature and humidity which can be used to aid in analysis For more information on the FFT and TXT file types please refer to the icListen Log File Formats document Data from an icListen HF is retrieved using the SCP or SFTP protocols on port 22 using a program such as FileZilla Files can also be retrieved from icListen HF through data page of the web interface in release 15 or newer The username is icListen and by default there is no password Files may be retrieved from icListen LF over the communications channel using Ocean Sonics Lucy 5 2 3 Windowing In order to reduce aliasing a window is applied when converting data from time series to frequency icListen makes use of a Hann window for this purpose Ocean Y Sonics icListen Operations Guide O June 17 2013 12 5 2 4 FFT Processing Options Not all applications require data to be processed in the same way For this reason icListen has been designed to allow multiple options for power spectrum data processing 5 2 4 1 Sliding Window It is often useful to have some overlap in the waveform data used to compute frequency data The technique used to accomplish this is called using a sliding window The figures below show an example waveform data set divided into sections which are used to compute frequency data These figures show the data used with no overlap 0 50 overlap and 75 overlap
10. range as a function of the maximum signal and the measurement noise floor Ocean Y Sonics icListen Operations Guide June 17 2013 28 12 1 Response at 4000 Samples sec The following charts show the icListen LF performance for its default sample rate of 4000 Samples sec Note that the bandwidth at this sample rate is 1600 Hz Sound Pressure dB re 1 Counts 1 mPa icListen Signal and Noise Limits AL IE E 20 BURG RSA DEA A _ CI HILL NIE LL OI po te J UL ET TE WOU T LE PTT RT gt HUH HIU MV TSC CI TN 0 T TIT ACH EE EE EE E E 0 0 1 1 10 100 1000 110 Frequency Hz Maximum Detectable Signal Minimum Detectable Signal Dynamic Range dB Instrument Resolution and Sensitivity Frequency Hz Converter Output Scaled Output dBV Figure 12 1 Noise response at 4 kHz sample rate icListen Operations Guide June 17 2013 dBV re 1 pPa 29 12 2 Response at 250 Samples sec The following charts show the icListen LF performance for its default sample rate of 250 Samples sec Note that the bandwidth at this sample rate is 100 Hz Sound Pressure dB re 1 Pa icListen Signal and Noise Limits A LLL LU LLLA 0 1 JUT 220 01 1 10 100 1000 1x10 Frequency Hz Maximum Detectable Signal Minimum Detectable Signal Dynamic
11. temperature and humidity Seconds can be aligned to falling edge of PPS Maximum depth 3500 meters Interfaces RS232 RS485 USB or Ethernet Flexible power input requirement for Ethernet and RS232 RS485 12 24 VDC USB requires 5 VDC Small size 42 mm dia by 250 mm long 1 65 by 9 8 Figure 2 2 icListen LF icListen Operations Guide June 17 2013 2 3 HF High Frequency The icListen HF is the newest Smart Hydrophone It combines high signal integrity data storage capacity low power and small size with the ability to process sound data in real time The icListen HF can be used in a tethered mode or as an acoustic data logger In tethered mode real time waveform or spectral data can be continuously streamed to a host PC running the Lucy program As a data logger the Smart Hydrophone can be configured using Lucy then left for extended periods under water to collect waveform or spectral data storing it internally Figure 2 3 icListen HF The amount of recording time is dependent upon the sample rate as seen in the following table w sample Rate Sample Rate 24 Bit Data 16 Bit Data GB per day Days with 32 GB GB per day Days with 32 GB 16 kS sec 4 1 7 7 2 8 11 5 32 kS sec 8 3 3 8 5 5 5 7 64 kS sec 16 6 1 9 11 1 2 8 128 kS sec 33 2 0 9 22 1 1 4 256 kS sec 66 4 0 4 44 2 0 7 512 kS sec 88 5 0 3 icListen HF can also log 1 2 4 and 8 kS sec data
12. 2 using a program such as FileZilla The username is icListen and by default there is no password Files can also be retrieved from icListen HF through data page of the web interface in release 15 or newer Files may be retrieved from icListen LF over the communications channel using Ocean Sonics Lucy Ocean Y Sonics icListen Operations Guide O June 17 2013 10 5 1 3 Gain All icListen models are capable of applying gain to the time series data Applying gain affects the dynamic range of the instrument by increasing the minimum amplitude signal which can be detected by an instrument and decreasing the maximum amplitude signal which can be measured by the instrument This behavior makes increasing gain desirable in quiet environments where important information could be otherwise lost but undesirable in loud environments where data would be lost due to clipping of the signal if gain were applied icListen LF and icListen MF both apply gain to time series data in hardware while icListen HF applies gain in software to 16bit data only icListen HF supplies time series data in 16bit or 24bit formats and makes use of gain to allow access to the low 8bits of data which would otherwise be lost when returning only 16bits Ocean Y Sonics icListen Operations Guide June 17 2013 11 5 2 Power Spectrum FFT Data One of the most powerful processing features of icListen smart hydrophones is their ability to provide power spectrum frequency da
13. 4 TX 5 RX 6 CA 6 RX D 7 DC Figure 14 2 Subconn MCBH8M male face 8 SYNC Ocean Y Sonics icListen Operations Guide June 17 2013 32 Ocean 14 3 icListen LF USB Cable Sonics MCILSE Nate Wire USB Pin Colour 1 GND BLK 4 2 VBAT 3 VCC RED 1 4 VBAT p E 5 DM WHT 2 6 DP GRN 3 7 SYNC 8 SYNC Figure 14 3 Subconn MCIL8F female face icListen Operations Guide Figure 14 4 USB pin positions June 17 2013 33 14 4 USB cable to icListen LF w battery and sync Figure 14 5 Subconn female face Q Figure 14 7 Charger connector Ocean Y Sonics MClL8F Name Colour Wire USB Pin Splice Pin Pigtail Colour Colour Colour 1 GND RED BLK BLK 4 2 VBAT BRN WHT BLK WHT TIP E 3 VCC BRN RED 1 4 VBAT RED BLK RING 5 DM BLU WHT 2 3 6 DP BLU WHT GRN 3 7 SYNC YEL BLK ORG 8 SYNC YEL YEL a 18 d x LOT icListen Operations Guide Figure 14 6 USB pin positions Figure 14 8 Sync wires June 17 2013 34 Ocean 14 5 icListen LF Ethernet Interface Sonics MCBH8M Name DC COM TX TX RX RX DC CONTI DIM N C 000 Ooo 5 Figure 14 9 Subconn MCBH8M male face icListen Operation
14. Range dB Instrument Resolution and sai c S D E 2 E gt E E e 3 Q Frequency Hz Converter Output Scaled Output dBV Figure 12 2 Noise response at 250 Hz sample rate icListen Operations Guide O June 17 2013 30 13 Options and Configurations The configuration options for icListen LF are listed in the table Frequency 1 Hz 1600 Hz 0 01 Hz to 100 Hz 1Hz 6400Hz Tethered Mooring with battery Autonomous with internal battery The configuration options for icListen HF are listed in the table Male 8 pin bulkhead Male 10 pin bulkhead Use Tethered Mooring with battery Autonomous with internal battery Ocean Sonics icListen Operations Guide O June 17 2013 31 14 Wiring Tables for icListen The following are standard pinouts used with molded cables and shorting jumpers provided by Ocean Sonics As your application may have specific requirements please refer to the wiring table provided with your unit Drawings of the molded cables are available by request from Ocean Sonics 14 1 icListen LF USB Interface Subconn Signal 1 MCBH8M Name GND 8 6 VCC VBAT d DM DP D SYNC Figure 14 1 Subconn MCBH8M male face SYNC 14 2 icListen Ethernet Interface Subconn Signal 1 MCBH8M Name 1 DC 2 2 COM 8 Q 3 TX 70 Q3
15. ace is working If using RS 232 option ensure baud rate is correct or use the auto detect option in Lucy If the cable was wired up or modified ensure that the TX and RX lines are not reversed 10 2 I need to find out the icListen firmware version and serial number The firmware version and serial number can be retrieved by sending an Enquire command to icListen This can be done in Lucy by clicking the Enquire button and noting the response to the button s right This also shows the instrument temperature and internal humidity Figure 10 1 Lucy status bar Note that if the instrument is not working the instrument s firmware version number is not accessible the version shipped is printed on the test results provided with the unit The instrument s serial number is printed on the side of instrument and its carrying case 10 3 The information displayed on the web interface is blank or not updating Your web browser may be using cached versions of either the html files or the included JavaScript css files Hold Ctrl and press F5 in your browser This will force all files in the cache to be discarded and then refreshes the page this is often not done when using the refresh button or pressing F5 without holding Ctrl 10 4 I m starting to miss data in my icListen HF WAV logs Over time as files are logged and deleted on any file system the efficiency of writing to that file system decreases The efficiency can be recovered by pro
16. and humidity measuring battery charge state producing buzzer patterns to indicate power up down of the unit and network device discovery options for Ethernet icListen devices 6 1 Temperature and Humidity Temperature and humidity values are continuously measured internally in all icListen models The internal temperature of an icListen will generally be slightly warmer than the outside temperature more so when the unit is out of water It can be useful in determining if there have been any temperature shocks experienced during testing Rapid changes in temperature can result in a DC offset being introduced to waveform data In some cases the offset can be great enough to clip max out the data This effect is expected and temporary and knowing the temperature changes that the device experienced can be help in determining if this is occurring The relative humidity reading can be used to determine the seal quality of the instrument A humidity reading of 5096 or lower is acceptable If the reading is higher than this it may indicate that there is a leak in the seal Contact Ocean Sonics if the humidity is higher than 8096 6 2 Battery Monitoring As of hardware release 2 icListen HF monitors the charge and state of the internal battery The stored charge as well as the battery voltage current temperature charging state board supply voltage and processor supply voltage are all continuously monitored during operation This allows a user
17. and power adapter Procedure 1 Connect test cable to the PC and icListen connect the power adapter to the test cable and mains power and wait for 1 minute for the icListen to start up 2 Start Lucy and open the Link panel by pressing the Link button on the lower right of the window 3 Select the Ethernet connection type Enter the IP address of your icListen and set the Port to 50000 and press Manual Connect If you don t know the IP address of your icListen you can use Ocean Sonics Marco program to find set the IP address Verify that the displayed serial number matches the number on the icListen being deployed 5 Open icListen HF Setup tab on the setup panel in Lucy this can be done by pressing the Job button in the lower right section of Lucy s main panel 6 Synchronize the time on the icListen using the Sync Time button Check Lucy s status line to verify that the time sync has been performed this is the line of text displayed beside the Enquire and Clr buttons on Lucy s main panel 7 Set all waveform settings bandwidth data mode log length and duty cycling if applicable and spectrum settings bandwidth log length data mode and processing as required by the survey Also set the logging delay and epoch setups as per the survey requirements Click the apply button and check the Lucy status line to ensure that the setup was accepted 8 Open internet browser and type the IP add
18. both to know when the batteries have been fully charged estimate how long the icListen will run from the internal battery and can be used to indicate if there are any issues with the battery Ocean Y Sonics icListen Operations Guide June 17 2013 17 6 3 Buzzer Patterns In icListen HF hardware release 2 a buzzer motor was added to indicate status of the unit These patterns can be used to ensure that the device is functioning as expected The patterns produced by icListen are given in the following table icListen Pattern Meaning Pattern Unit Booting Up 1 short pulse 0 5s each Firmware is Ready Running 2 short pulses 0 5s each Unit Shutting Down 3 short pulses 0 5s each Error Booting Unit 1 short amp 1 long pulse 0 5s and 1s repeated 3x Note that the error pattern may repeat multiple times if unit is unable to boot The Unit shutting Down pattern will also be played when a unit is powered on after the battery has been fully drained 6 4 Time Synchronization All icListen devices are capable of having their time of day set over the command amp control connection to the device This can be done using Ocean Sonics Lucy software Data can also be synchronized to the falling edge of a pulse per second PPS signal allowing synchronization between multiple units PPS synchronization is not available on icListen HF hardware release 1 6 5 Network Discovery In order to make finding your icLi
19. ctions available to icListen HF are sending and logging trigger detail messages and logging data icListen HF begins logging triggered data at the top of the second at which an event was detected while icListen LF begins sending or logging data immediately after the event is detected Note Different events can have different result actions Ocean Sonics icListen Operations Guide O June 17 2013 15 5 4 Start Time and Duty Cycling icListen HF can be configured to start logging data at a specific date time Configuring a start time allows a deployment to be set up well in advance of an actual testing monitoring session without unwanted data being logged during this time Until the start time has been reached no internal logging of either time series WAV files or frequency spectrum TXT files will be logged but data can still be streamed live from the instrument When storing waveform data icListen HF can also perform duty cycling to reduce the amount of data logged internally The active idle portions of the duty cycle can be configured with 1 minute resolution and the first active phase of logging will begin when the configured start time has been reached Ocean Y Sonics icListen Operations Guide June 17 2013 16 6 Additional Features of icListen icListen also contains some additional features that can aid with troubleshooting deployment and operation of the device These features include monitoring temperature
20. eed assistance to determine your IP address Ocean icListen Operations Guide June 17 2013 6 192 168 0 11 Figure 3 2 Lucy Ethernet connection display Click the Enquire button in the middle top of the display A message to the right will display in black if enquire is successful or red otherwise Note the serial number in the displayed message to ensure it matches the number on the hydrophone The message also displays the sensor temperature which may be slightly different from that outside the instrument and the internal humidity Figure 3 3 Lucy status display The humidity is an indication of the seal quality A humidity reading of 5096 or less is acceptable Higher readings indicate a possible leak in the seal Contact Ocean Sonics if the humidity is higher than 8096 Close the Setup window if it is still open Click the Start button in the top left corner The display should begin to show data in the charts Gently tap the hydrophone or whistle near it to cause a change in the display If the display is black red change the reference setting on the bottom left until blue or green is visible If a changing data display is seen the hydrophone is ready to put in the water Events will show up on the display approximately 1 second after they have occurred See the following display for an example icListen Operations Guide June 17 2013 7 Figure 3 4 Lucy
21. erent effects in Epoch mode In icListen HF waveform data can be either streamed or logged while spectrum data can be collected through command and control but not streamed while logging 5 1 Time Series Waveform Data Waveform data represents the raw signal detected by a hydrophone Acoustic data is converted from analog to digital where it can then be processed by icListen 5 1 1 Real Time Data icListen LF and icListen HF are capable of transmitting real time waveform data to users using software such as Lucy Along with the digital waveform data icListen will also transmit information on how the unit was configured when the data was collected as well as scaling information which can be used to convert the received numbers to voltage or pressure measurements 5 1 2 Stored WAV Data Waveform data may also be stored by icListen LF and icListen HF in standard uncompressed WAV files This makes data recorded by icListen readable by many third party sound editing programs and analysis tools as well as by Ocean Sonics Lucy software In addition to the waveform data icListen will store more information about the instrument in the WAV file s comment fields which can prove to be useful for analysis For more information on the WAV file format and the additional information provided in the comment fields please refer to the icListen Log File Formats document Data from an icListen HF is retrieved using the SCP or SFTP protocols on port 2
22. ese hydrophones are ideal for a range of passive acoustic applications such as e Environmental assessments of underwater acoustic noise e Monitoring for marine life including sea mammals and spawning fish e Laboratory reference hydrophone e Locating sound sources such as malfunctioning equipment or flight data recorders e Locating leaks in underwater pipes and identifying machine noises Users communicate with icListen Smart Hydrophones through a PC program called Lucy This program lets users view instrument data in real time retrieve and play stored data and perform housekeeping functions such as check status amp configuration Figure 1 1 icListen Family We hope you enjoy your experience with your icListen product and look forward to receiving feedback on your experience using it Ocean Y Sonics icListen Operations Guide June 17 2013 2 Features of icListen 2 1 LF Low Frequency The icListen LF combines high signal integrity high storage capacity low power and small size with the ability to process sound data in real time The icListen LF can be used in a tethered mode or as an acoustic data logger In tethered mode real time waveform or spectral data can be continuously acquired by a PC running the Lucy program As a data logger the Smart Hydrophone can be configured using Lucy then left for extended periods under water to collect waveform or spectral data storing it internally The amount
23. example display Note that if the Enquire button returns a red message there may be a link problem Check that connections to the hydrophone and PC are correct If the instrument requires external power RS 232 or Ethernet ensure power is supplied to the instrument See the Troubleshooting section for more if the problem persists Ocean Sonics icListen Operations Guide O June 17 2013 8 4 Using the Lucy Software 4 1 Overview The software used to talk to the icListen hydrophones is a PC program called Lucy It presents data to the operator in a graphical and numerical format The interaction of the software has been designed for field operations personnel making it simple to use once configured Figure 4 1 Lucy main display Please refer to the Lucy User s Guide for instructions on operating the Lucy software Ocean Sonics icListen Operations Guide June 17 2013 5 Processing in icListen One thing that makes icListen hydrophones smart is their ability to process data Several types of processing are available to icListen devices all of which add value to the data Some icListen models are capable of transmitting real time time series data and storing this data for later analysis as well All icListen smart hydrophones are capable of converting incoming data to power spectrum frequency data This data can be processed in different ways transmitted in real time stored or used to trigger diff
24. icListen HF will not currently log 24 bit data at 512 kS sec Note that storage time can be increased significantly by enabling Duty Cycle Logging to record data periodically or by storing processed FFT data Waveform data is logged in the standard wav format making it accessible from a wide range of software programs Spectral data is in txt format suitable for spreadsheet viewing It is detailed in the icListen Log File Formats document The Lucy program is ideal for viewing stored waveform or spectral data Spectral analysis of data is optionally performed in the instrument and can be averaged for up to one minute to reduce the quantity of data transferred or stored Ocean Y Sonics icListen Operations Guide June 17 2013 4 2 4 HF Feature Summary e Frequency Range HF 10 Hz 200 kHz ow power approximately 2 W e Power input requirement 24 VDC 15 e Supplies real time waveform and processed data in tethered mode Processed data in spreadsheet TXT format e Waveform data in WAV format with meta data stored in file header Monitors internal temperature and humidity e Monitors battery charge state as of hardware rev 2 e Indicates startup shutdown through buzzer patterns as of hardware rev 2 e Seconds can be aligned to falling edge of PPS as of hardware rev 2 e Maximum depth 3500 meters Size 45 mm dia 230 mm long excluding connector e Depth rating 200 or 3500 meters Figure 2 4 icListen HF
25. icListen Operations Guide June 17 2013 icListen Smart Hydrophones Ocean Y Sonics Ocean Sonics Ltd Hill House 11 Lornevale Road Great Village NS BOM 1L0 Canada Phone 1 902 655 3000 www OceanSonics com Table of Contents Table Of Contents nce Lee Tere rate deer be sega eee vea eb ga rates dee ara Ra NIRE EBENE YE LS i Of Ee iv NN o e 1 2 Feat resoficListen etico diit iere etes M IET 2 2 1 LES s tu Eoo mine ton tee Eomae oun uc 2 2 2 LF Feature Summary iuc nain ctas ccce casses REESEN 3 2 3 High Frequency i in Hte eate errore ee E Yoda etas eva terre eee ee bove opu ERRARE 4 2 4 HF Feature Die Uu le TEE 5 3 Quick Start Bench Setup oi ree eret pue M tes scab etre ann e eau erre suse ease dran Sont nee 6 3 1 Ee 6 3 2 Eege eege 6 4 Using the Lucy Software RETRO 9 4 1 9 5 Processing in ICLIStEN EEN DEE 10 5 1 Time Series Waveform Data iii 10 5 1 1 Real Time EE 10 5 1 2 Stored WAV Data ss de nement nn de ant 10 5 1 3 Gianni EE 11 5 2 Power Spectrum FFT Data iii 12 5 2 1 Real time Data 2 2 De 12 5 2 2 Stored FFT Data
26. ming on the connectors Failure to do this could result in the need to have the instrument serviced to replace the connectors For icListen LF if your unit is battery powered by using a shorting plug ensure the shorting plug has been disconnected from the unit after retrieval For icListen HF make sure your unit is powered down by disconnecting the power adapter from the test cable and press the Power Down Reset button on the settings tab of the web interface icListen HF may also be powered down by fully inserting then removing the Power Down plug included with the unit These steps will avoid running down the battery or possibly logging data while in storage Failure to do this will not damage the unit but could result in lost time while the battery is being recharged or while clearing or retrieving unnecessary log files from the unit Ocean Y Sonics icListen Operations Guide June 17 2013 24 9 4 Connector Care Ensure that the mating surfaces of the connector are fully seated before deploying the instrument Failure to do this could result in shorted connections when the unit is placed in the water Never use excessive force to seat connectors This may result in the pins being broken or bent which could result in down time while the connectors are being replaced If a connector is tough to get in place lubricate the rubber parts of the connector sparingly using Molykote 44 Medium lubricant Never use the backshell fastening nu
27. ns channel and can be done using Ocean Sonics Lucy For more detail on this update procedure please refer to the Lucy User s Guide Updates for icListen HF are applied using the SCP or SFTP protocols WARNING Applying firmware updates to icListen HF will cause all logged WAV and TXT data to be erased from the instrument Programs such as FileZilla may be used for this The update file will be named icListenUpdate icu with replaced by the release number of the update and may be applied using the following steps Power the icListen using the power adapter do not power from battery Connect to the icListen via SFTP or SCP on port 22 The login is icListen and there is no password 3 Once connected you should see a directory called update If this directory does not exist create it This directory name is case sensitive Upload the update icu file into the update directory Disconnect from the icListen SFTP SCP connection Connect to the icListen via a web browser by entering the IP address into the address bar Once on the web page go to the Settings page Click the Powerdown Reset button and confirm that you want to reboot D pm Jm un P Wait approximately 5 minutes for the update to complete 10 Reconnect to the icListen via your web browser and check that the Release number indicated on the home page matches the provided update You may need to hold Ctrl and press F5 to ensure that the information displa
28. of recording time is dependent upon the sample rate as seen in the following table Figure 2 1 icListen LF Sample Rate MB per day Days with 32 GB 250 S sec 65 492 16 months 500 S sec 130 246 8 months 1000 S sec 259 123 4 months 2000 S sec 518 61 2 months 4000 S sec 1037 30 1 month Note that storage time can be increased significantly by using event detection to record data periodically or when certain conditions are detected Waveform data is logged in the standard wav format making it accessible from a wide range of software programs Spectral data is in FFT format detailed in the icListen Log File Formats document The Lucy program is ideal for viewing stored waveform or spectral data Spectral analysis of data is optionally performed in the instrument and can be averaged to reduce the quantity of data transferred or stored Ocean Y Sonics icListen Operations Guide June 17 2013 2 2 2 LF Feature Summary Ocean Y Sonics Frequency Range LF 0 01 to 1600 Hz can be extended to 6400 Hz Low power less than 100 mW Can be battery powered Supplies real time data when connected to a PC Event detection up to 5 bandwidth configurable triggers Stores up to 32GB in autonomous mode Can process data in real time Data Format Waveform in WAV format Processed in FFT format detailed in the icListen Log File Formats document Monitors internal
29. per formatting of that file system Use the Clean Data Partition button on the icListen HF web server to format the data logging partition for optimal performance WARNING Make sure all logged data is backed up from icListen before performing this action as it erases all logged data on the instrument 10 5 I can t connect to my Ethernet icListen s IP address Ocean Y Sonics Do not add leading O s to any part of the IP address Many applications will treat address fields with leading O s as base 8 numbers instead of base 10 For example if your address is 10 11 12 1 and you type 010 011 012 001 into your browser or Lucy you will not be able to connect to the instrument they will treat 010 011 012 001 as 8 9 10 1 icListen Operations Guide O June 17 2013 26 11 Functional Block Diagram The drawing below shows the icListen LF key functions The Blocks on the left of the diagram represent connector functions Not all interface functions are available on all instruments Sync In Guest Figure 11 1 Functional block diagram Ocean Sonics icListen Operations Guide June 17 2013 27 12 Instrument Performance e The charts on the following pages show the frequency and noise response of the icListen LF instrument at the 250Hz and 4000Hz sample rates The first chart shows a conventional voltage and ADC count response versus frequency over the bandwidth of the instrument e The second chart shows the instrument dynamic
30. ress of the icListen into the address bar 9 Ensure that previously recorded data on the icListen has been archived Navigate to the data page Clear all data on the icListen by pressing the Clean Data Partition button and then OK on the confirmation popup Wait 1 minute for data clearing and restart 10 Refresh until the page is displayed Go to the settings page 11 Hold the Ctrl key and press F5 to ensure displayed values are up to date Verify that all data collection settings match the survey setup 12 If the unit must be powered off before deployment disconnect the power adapter from the test cable and press the Power Down Reset button on the settings tab of the web interface Note that in order for the unit to start again external power will need to be applied 13 Disconnect the test cable from the PC and icListen and connect the dummy plug or external battery to the icListen icListen is now ready for deployment Ocean Y Sonics icListen Operations Guide O June 17 2013 22 9 Care and Maintenance To get the best performance and longest service life possible out of your icListen it is important to properly care for and maintain your unit Here are a few things which should be remembered when using your icListen 9 1 Firmware Updates Occasionally Ocean Sonics may provide firmware updates for icListen The firmware for icListen LF is updated over the command and control communicatio
31. s Guide June 17 2013 35 14 6 Ethernet Cable 1 DC RING 2 COM RING 3 TX GRN 6 4 TX WHT GRN 3 5 RX ORG 2 6 RX WHT ORG 1 7 DC WHT BRN RING 8 SYNC WHT BLU Figure 14 10 Subconn MCIL8F female face Figure 14 11 RJ 45 Pin positions Ocean Sonics icListen Operations Guide O June 17 2013 36 14 7 icListen LF Shorting Jumper To run icListen LF in battery mode a shorting jumper is used to connect the power pins to the battery voltage Pin Circuit Name Wire Colour 1 A Not Defined U1 0 gt Figure 14 12 Subconn female face Ocean Y Sonics icListen Operations Guide O June 17 2013 37 14 8 icListen HF Shorting Jumper To run icListen HF in battery mode a shorting jumper is used to indicate that the unit is running on battery The icListen HF shorting jumper can also be used with the icListen LF but newer icListen HF units require the configuration below to take advantage of all power management functions Ocean Y Sonics Pin Circuit Name Wire Colour 1 A 2 A 3 B 4 B Not 5 C Defined 6 C 7 A 8 A 2 1 38 ere CN Figure 14 13 Subconn female face icListen Operations Guide June 17 2013 38 15 Recommended Connectors The following table lists all the connectors
32. sten Operations Guide O June 17 2013 19 7 Logged Data Retrieval icListen LF and icListen HF can be configured to log data onto an internal storage device This section describes how to retrieve that data from the instrument following a deployment 7 1 icListen LF Data Retrieval Data logged in an icListen LF is retrieved using the Lucy software s file utility The details on how to use Lucy to retrieve logged data can be found in the Lucy User s Manual under the section File Utility 7 2 icListen HF Data Retrieval Data logging in an icListen HF can be retrieved by two different methods These methods are SFTP SCP and the web interface SFTP SCP The SFTP SCP protocols may be used to retrieve data files from an icListen HF This is typically done using a freeware program such as FileZilla The login information is username icListen and by default there is no password The connection is through port 22 Web Interface Release 15 and newer Data can be retrieved through the icListen HF s web interface as of release 15 July 2012 The web interface is accessed by entering the IP address of the icListen into a standard web browser such as Internet Explorer or Firefox On the web page click data and follow the instructions present on the page Ocean Y Sonics icListen Operations Guide June 17 2013 20 8 Standard Operation Procedures SOPs The following procedures help to minimize the chance of human error while
33. sten device on a network easier some network discovery protocols have been implemented on Ethernet units icListen LF Ethernet models have UPnP Universal Plug and Play enabled while icListen HF Ethernet modules make use of Ocean Sonics Marco Polo protocol to discover IP addresses 6 5 1 UPnP Universal Plug and Play UPnP is a set of networking protocols which allows a device to automatically be discovered by any computer which has UPnP services enabled on the same subnet as the device UPnP is enabled by default on Windows 7 and Vista and UPnP devices can be found under Network When UPnP is enabled on Windows XP UPnP devices can be found under My Network Places UPnP is not enabled by default in Windows XP visit support microsoft com for details on how to enable this feature Ocean Y Sonics icListen Operations Guide June 17 2013 18 6 5 2 Marco Polo A pair of programs Marco and Polo are used to discover icListen HF units on a network Marco is the application used by the end user on a PC which scans the network for devices while Polo exists on the icListen unit and responds to messages from Marco Using Marco a unit can be discovered on a local network or through a direct connection to a device even when not on the same subnet Marco also allows the network settings of the icListen unit to be adjusted A copy of the Marco software is provided on the data stick supplied with icListen HF units Ocean Y Sonics icLi
34. t to force the connector into place This could result in damage to the connector or backshell and may result in the connectors not being fully seated in place The connector should not be exposed to extended periods of heat or sunshine Should this occur and the connectors become very dry they should be soaked in fresh water before use Any accumulation of sand or mud in the female contact should be removed with fresh water Failure to do so could result in the splaying of the female contact and damage to the O ring seals Disconnect by pulling straight not at an angle Do not pull on the cable and avoid sharp bends at cable entry 9 5 Deployment When deploying an icListen it is a good idea to apply some gentle soap such as dishwashing liquid to the surface of the hydrophone This will help to break the surface tension avoiding bubbles forming on the hydrophone surface which could have adverse effects on the signal quality If your icListen will be internally logging data make sure that the file system is ready see File System Care 9 6 Long Term Deployment For long term deployments contact Ocean Sonics for support Ocean Y Sonics icListen Operations Guide O June 17 2013 25 10 Troubleshooting icListen 10 1 Instrument not communicating Check wiring If externally powered ensure power is functional using a multimeter Re seat plugs and connectors Check data link interface on PC with another device to ensure PC interf
35. ta Looking at data in the frequency domain rather than the time domain provides a clearer picture of what s going on within a sound and can also dramatically reduce the storage and bandwidth capacity requirements of an operation 5 2 1 Real time Data All icListen models are capable of providing real time FFT data This data provides a clear picture of what s happening in a sound Transmitting FFT data rather than waveform data reduces the bandwidth requirement dramatically as well which saves on transmission costs and improves reliability This data is also accompanied by information on how the unit was configured when the data was collected as well as scaling information which can be used to convert the data from voltage to pressure measurements 5 2 2 Stored FFT Data icListen LF is capable of storing processed power spectrum data in files of type FFT This is a binary file format similar to the WAV file format used for time series data icListen HF is capable of storing processed power spectrum data in tab separated variable format TXT files These files can be read by virtually any spreadsheet or text editor program Storing spectrum data can provide a much more compact form of data storage than time series data allowing for faster data retrieval and analysis It also reduces the storage capacity requirements and means that the unit can store data for longer periods of time between data retrievals In addition to the spectrum data
36. used by icListen Please ensure you check the number of pins and the connector gender before ordering connectors or whips from another vendor All listed are rated to 3500 M depth Bulkhead Male MCBH8M 7 429 MCIL8F amp MCDC8F 16 MCDLSF 86 0 6 HO 059 5 A Figure 15 1 Subconn MCBH8M male face Ocean Sonics icListen Operations Guide June 17 2013 39
37. using icListen These procedures have been designed for use with Ocean Sonics Lucy software 8 1 Autonomous icListen HF Data Logger Data Recovery This procedure is used when retrieving data from an icListen HF deployed as a data logger Upon retrieval the icListen should contain stored WAV and or TXT log data This procedure requires access to e AnicListen HF retrieved after survey has been completed e APCrunning Ocean Sonics Lucy software and any web browser e AnicListen HF test cable and power adapter Procedure 1 Connectthe test cable to the PC and icListen connect the power adapter to the test cable and mains power and wait for 1 minute for the icListen to start up 2 Onthe PC start the Lucy software and open the Link panel by pressing the Link Setup button on the lower right area of the window 3 Select Ethernet as the Connection Type Enter the IP address of your icListen and set the Port to 50000 and press the Manual Connect button If you do not know the IP address of your icListen you can use Ocean Sonics Marco program to find set the IP address 4 Verify that the displayed serial number matches the number on the icListen being recovered to ensure you are communicating with the right unit 5 Open icListen HF Setup tab on the setup panel in Lucy this can be done by pressing the Job button in the lower right section of Lucy s main panel 6 Set Waveform Data Mode and Spectrum Data Mode both to Disabled
38. yed page is not old information from your browser s cache the refresh button on the browser generally does not guarantee this Ocean Y Sonics icListen Operations Guide O June 17 2013 23 9 2 File System Care To maintain optimal performance Ocean Sonics recommends that logging be disabled and all files be cleared from the system when the instrument is not in use This will prevent accidentally deploying an instrument that has no storage capacity remaining For icListen LF files can be cleared by deleting them using the file utility provided by Lucy icListen HF is capable of storing data collected at much higher sample rates than icListen LF so an additional Clean Data Partition function has been implemented in order to maintain optimal logging performance The cleaning function can be accessed via the web interface This function deletes all logged files and formats the data logging partition for optimal performance If the cleaning function is not used the file system may become less efficient over time and data loss during logging may eventually result the efficiency can be recovered by using the Clean Data function For this reason Ocean Sonics recommends using the Clean Data function before any major deployments where logging is to be used 9 3 Retrieval and Storage When your icListen is being retrieved it is important to rinse off the unit with fresh water This will avoid corrosion and keep salt crystals from for
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