the High Resolution PreView
Contents
1. A _ High Resolution PreView Operating Manual Installation Guide Product Description The High Resolution PreView is a solid state pulsed radar object detection system designed to alert vehicle operators to the presence obstacles The system detects both moving and stationary objects in a pre defined coverage area and reports the distance of the closest object via visual range indicators and an audible signal to a vehicle operator The High Resolution PreView system is designed to supplement other safety practices and is not intended to be the sole method of collision avoidance The High Resolution PreView consists of four major components an environmentally sealed sensor an operator display mounted in the cab of the vehicle an interconnect cable and a recommended optional external back up warning alarm or camera system The High Resolution PreView system does not require cleaning and is not affected by harsh weather conditions including temperature extremes rain sleet snow or fog The High Resolution PreView system comes in three different models HRPV 2020 Twenty foot 6 meter detection range HRPV 2015 Fifteen foot 4 5 meter detection range HRPV 2010 Ten foot 3 meter detection range Sensor Antenna Description The antenna assembly transmits and receives low power 6 3GHz radar signals It then processes the returned signals to determine if an object has reflected any energy back to the Preco Electro2. Capability The High Resolution PreView system can detect most objects within the detection zone However there are some instances where objects can go undetected Obstacle size shape relative location and composition are all factors determining if when and where an object is detected The PreView system operates by transmitting a pulse of very low power electromagnetic energy Any energy that strikes an object reflects a certain amount of this energy back to the PreView sensor If the returned energy is of sufficient magnitude it is used to indicate object presence and determine the object s distance While the PreView system can resolve multiple objects only the object closest to the vehicle is reported to the operator display since it represents the most significant collision threat The amount of energy returned is based on a few factors Size a larger object usually reflects more energy than a smaller object Composition a metal object typically reflects more energy than a non metallic object A metallic object at the edge of the maximum detection zone might be detected whereas a wood object may not Scattering a solid object reflects more energy that a non solid object such as tree branches gravel bushes etc Shape complex shapes cause energy to be returned in a very non uniform way Very small variations or movement can change detection status Angle an object flat side perpendicular to t
3. Preco Electronics Inc 415 N Maple Grove Boise ID 83704 800 453 1141 Copyright 2006 Page 11 of 12 370 001 2A PREVIEW DAILY MAINTENANCE Detach this page and place with daily operator maintenance procedures Safety Message to Operators of Vehicles with PreView Systems 1 6 7 The PreView system is intended as an Object Detection System and should not be relied upon as your first line of defense for the safe operation of the vehicle It should be used in conjunction with established safety programs and procedures to augment the safe operation of the vehicle ground personnel and adjacent property Should the system become inoperative it could jeopardize the safety or lives of those who depend on the system for safety Testing and inspection of the system in accordance with these instructions and record of the results should be listed on the daily maintenance report The units on operating vehicles must be tested each day prior to the vehicle s operation Results of this test must be recorded in the maintenance log People operating this equipment MUST check for proper operation at the beginning of every shift or safety inspection period People s lives depend on the proper installation of this product in conformance with these instructions It is necessary to read understand and follow all instructions shipped with the product Failure to follow all safety precautions and instructions may result in property damage seriou
4. Se Black Ground Ble Aux Output Back Up Alarm Electrical Connection The High Resolution PreView sensor provides an auxiliary output that can be used to activate an external back up alarm The High Resolution PreView system activates this output whenever an object is detected This output is switched from a high impedance state to ground when active and is protected against an over current condition The maximum operating current is approximately 1 amp which includes any inrush current For alarms that meet the 1 amp maximum current connect the blue wire on the interconnect harness as shown For alarms that exceed the 1 amp current limit an intermediary relay will be required between the sensor and the alarm 12 VDC PreView Blue Wire NOTE The PreView sensor does not provide a power source for back up alarm use Display Unit Installation The display unit should be mounted where the vehicle operator can easily view it while backing The ideal location for this is on the dash positioned by either windshield pillar This will allow the operator view of the display while also looking out one of the side mirrors The High Resolution PreView display unit comes equipped with a mounting bracket and hardware If desired the display unit can be mounted to the display bracket with the supplied hardware This bracket can then be mounted in the vehicle cab as desired Preco Electronics Inc 415 N Maple Grove Boise I
5. D 83704 800 453 1141 Copyright 2006 Page 8 of 12 370 001 2A Cable Installation The interconnect cable between the sensor and display is 25 feet 7 6M in length If the distance between the sensor and display is greater than 25 feet contact Preco for additional cable extensions Routing of the cable should start at the sensor Allow for a small service loop in the cable at the sensor and secure the cable every few feet 1M with tie wraps When ready to enter the cab drill a 1 24mm hole and feed the display connector through The remaining length of cable is then routed to the display unit and the connectors are latched together Care should be taken to not route the cable next to heat sources such as the engine and exhausts and areas that may see abrasion or rock damage Initial System Power Up and Test Once the sensor and display are installed wired and connected power should be applied to test correct system operation Upon power up the display will go through its self test by illuminating all LED s and sounding the buzzer When the system is operating correctly in an open field with no obstructions the status LED indicating green will be the only light illuminated If any the detection yellow LED s are lit check for any vehicle obstruction which may be detected by the sensor If possible move the sensor so it is not detecting the object s If it is not possible to relocate the sensor then consult the factory If for so
6. F LIABILITY FOR DAMAGES ARISING OUT OF THIS LIMITED WARRANTY OR ANY OTHER CLAIM RELATED TO MANUFACTURER S PRODUCTS MANUFACTURER S LIABILITY FOR DAMAGES SHALL BE LIMITED TO THE AMOUNT PAID FOR THE PRODUCT AT THE TIME OF ORIGINAL PURCHASE IN NO EVENT SHALL MANUFACTURER BE LIABLE FOR LOST PROFITS THE COST OF SUBSTITUTE EQUIPMENT OR LABOR PROPERTY DAMAGE OR OTHER SPECIAL CONSEQUENTIAL OR INCIDENTAL DAMAGES BASED UPON ANY CLAIM FOR BREACH OF CONTRACT NEGLIGENCE OR OTHER CLAIM EVEN IF MANUFACTURER OR A MANUFACTURER S REPRESENTATIVE HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES Manufacturer shall have no further obligation or liability with respect to the product or its sale operation and use and Manufacturer neither assumes nor authorizes the assumption of any other obligation or liability in connection with such product This Limited Warranty gives you specific legal rights and you may also have other legal rights which vary from state to state Some states do not allow the exclusion or limitation of incidental or consequential damages so the above exclusion or limitation may not apply to you Any oral statements or representations about the product which may have been made by salesmen or Manufacturer representatives do not constitute warranties This Limited Warranty may not be amended modified or enlarged except by a written agreement signed by an authorized official of Manufacturer that expressly refers to this Limited Warranty
7. esolution PreView sensor and in the event of a system failure or malfunction will notify the operator with a fault indication A buzzer volume control switch is provided on the front panel of the display allowing the vehicle operator the ability to adjust the buzzer volume to four different levels The LED indicators are automatically compensated by an internal ambient light sensor to avoid excessive intensity in low light conditions sci Buzzer Range Indications A 5 Zones eae Status LED Volume Control Switch Preco Electronics Inc 415 N Maple Grove Boise ID 83704 800 453 1141 Copyright 2006 Page 2 of 12 370 001 2A Item Description Status LED llluminates green continuously after power is applied to the system The status will change from green to red if a system malfunction occurs Range Illuminate to give operator a relative distance measurement to the closet Indications detected object LED s operate from the left to right with a closer object resulting in more LED s illuminated Buzzer Sounds audible tones to alert operator of obstacles The buzzer tone rate will increase as the vehicle gets closer to an object Volume Control Switch This momentary push button switch allows four different buzzer volume levels to be selected Four successive push release cycles are needed to cycle the buzzer through its available settings Table 1 Operator Display Description Object Detection
8. facturer will at its option repair or replace any product found by Manufacturer to be defective and subject to this Limited Warranty This Limited Warranty does not apply to parts or products that are misused abused modified damaged by accident fire or other hazard improperly installed or operated or not maintained in accordance with the maintenance procedures set forth in Manufacturer s Installation and Operating Instructions To obtain warranty service you must ship the product s to the specified Manufacturer location within thirty 30 days from expiration of the warranty period You must fill out the warranty claim form and include the form with the product You must prepay shipping charges and use the original shipping container or equivalent Return shipping charges within the United States Canada and Puerto Rico will be paid by Manufacturer This Limited Warranty will apply only to a product purchased and located in the United States Canada or Puerto Rico EXCLUSION OF OTHER WARRANTIES MANUFACTURER MAKES NO OTHER WARRANTIES EXPRESSED IMPLIED OR STATUTORY THE IMPLIED WARRANTIES FOR MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY EXCLUDED AND SHALL NOT APPLY TO THE PRODUCT BUYER S SOLE AND EXCLUSIVE REMEDY IN CONTRACT TORT OR UNDER ANY OTHER THEORY AGAINST MANUFACTURER RESPECTING THE PRODUCT AND ITS USE SHALL BE THE REPLACEMENT OR REPAIR OF THE PRODUCT AS DESCRIBED ABOVE LIMITATION OF LIABILITY IN THE EVENT O
9. ges of the entire coverage area 11 After the test the assistant needs to communicate to the operator the details on the detection zone For Questions call 1 800 453 1141 between 7 00 AM and 5 00 PM Mountain Time Zone Preco Electronics Inc 415 N Maple Grove Boise ID 83704 800 453 1141 Copyright 2006 Page 12 of 12 370 001 2A
10. he sensor will reflect more energy than an object at an angle See below for an example of how angle can affect return energy Preco Electronics Inc 415 N Maple Grove Boise ID 83704 800 453 1141 Copyright 2006 Page 3 of 12 370 001 2A Preco Electronics Inc Object surface at A 45 degree angle to the PreView sensor Minimal reflection PreView Sensor Transmitted signal Object in the PreView system detection zone Reflected signal doesn t return to the PreView sensor Full reflection Preview Transmitted signal Object in the PreView system detection zone Object surface at a 90 degree angle to the PreView sensor Reflected signal returns to the PreView sensor Figure 1 Object Reflection 415 N Maple Grove Boise ID 83704 800 453 1141 Copyright 2006 Page 4 of 12 370 001 2A SENSOR SPECIFICATIONS Typical Transmitter Pulsed RF transmitter at 6 3GHz operating under FCC Part 15 250 Electronics Solid state Connector Conxall 72x1 8PG series Sealing Encapsulated to protect from dust and moisture to IP67 Housing Material Polycarbonate radome Dimensions 4 125 H x 4 950 W x 1 75 D 10 5cm x 12 7cm x 4 4cm Weight 1 5 Ib 0 68 kg Operating Temperature 40 F to 185 F 40 C to 85 C Vibration 25G RMS all three axes Shock 25G all three axes Mounting Four 0 22 5 6mm diameter holes on 4 25 horizontal centers and 2 00 vert
11. ical centers Unit is supplied with 10 stainless steel screws for mounting purposes Recommended torque is 22 inch Ibs DISPLAY SPECIFICATIONS Typical Housing Material Polycarbonate ABS alloy Dimensions 1 00 H x 2 25 W x 2 00 D 2 5cm x 5 7cm x 5 1cm Weight 0 25 Ib 0 11 kg Mounting User dependent ELECTRICAL SPECIFICATIONS Input Voltage 9 32VDC over voltage protected to 150V Input current 0 2 amp maximum inrush current limited to 1A Polarity Negative ground Polarity protected to 150V Power Connection Two 20 AWG wires connect to reverse signal lamp circuit Auxiliary Output Single 20 AWG wire 150V tolerant Active State switched to ground over current protected to 1 amp sink maximum Inactive State high impedance OPERATING CHARACTERISTICS Maximum Range 20 feet 6m Programmable Ranges 10 15 and 20 feet 3 4 5 and 6m Warning Ranges 5 zones divided into programmed range Minimum Resolution 1 foot COMMUNICATION Physical Layer CAN 2 0B 250 KB s Protocol Layer SAE J1939 Extended Data Update Rate 70 ms Preco Electronics Inc 415 N Maple Grove Boise ID 83704 800 453 1141 Copyright 2006 Page 5 of 12 370 001 2A MAINTENANCE Daily Follow test and maintenance procedure REGULATORY COMPLIANCE Compliant with FCC Part 15 250 5925 7250MHz FCC ID OXZWBPV2006 PRODUCT MANUFACTURED IN THE USA FCC STATEMENT This device complies with Part 15 of the FCC Rules Operation is subject to
12. me reason the system is malfunctioning all of the yellow LED s will be flashing the status LED will turn from green to red and the buzzer will be sounding Refer to the Error Indications and Troubleshooting sections below to determine the error and solution Once the system has been installed the detection zone should be tested Testing is accomplished by using two individuals One individual is engages the parking brake depresses the vehicle brake and places the vehicle in reverse The other individual then walks through the detection zone noting where the display buzzer or the back up alarm activates By moving about the rear of the vehicle and noting when the display or back up alarm activate an accurate detection zone can be mapped Preco Electronics Inc 415 N Maple Grove Boise ID 83704 800 453 1141 Copyright 2006 Page 9 of 12 370 001 2A COMMON INSTALLATION PROBLEMS AND TROUBLESHOOTING e TBD Preco Electronics Inc 415 N Maple Grove Boise ID 83704 800 453 1141 Copyright 2006 Page 10 of 12 370 001 2A MANUFACTURER LIMITED WARRANTY AND LIMITATION OF LIABILITY Manufacturer warrants that on the Date of Purchase this Product will conform to Manufacturer s published specifications for the product which are available from Manufacturer on request and Manufacturer warrants that the product is free from defects in materials and workmanship This Limited Warranty extends for twelve 12 months from the date of manufacture Manu
13. n that will provide some protection from impact and debris while allowing an unobstructed view of the target hazard area Important Before the High Resolution PreView system is permanently installed to the vehicle verify that the selected sensor mounting location provides a clear detection zone Temporarily attach the sensor in the proposed mounting location apply power to the system and verifying that nothing is being detected Sensor Antenna Mounting 1 Select the appropriate sensor mounting location 2 The standard mounting configuration is with the sensor s stylized V logo pointing down 3 Using the sensor s mounting holes as a template scribe position marks through the holes Drill 1 4 6mm holes centered at the marks 4 A 1 diameter clearance hole is required for the sensor connector and mating cable connector 5 Secure the sensor to the vehicle with the four supplied 10 24 UNC button head screws washers and nuts or equivalent Apply a maximum torque of 22 inch pounds when securing the sensor Preco Electronics Inc 415 N Maple Grove Boise ID 83704 800 453 1141 Copyright 2006 Page 7 of 12 370 001 2A Sensor Power Connection Locate the vehicles reverse light power wire and connect to the red wire on the sensor harness using 20AWG wire minimum Connect the black wire of the sensor harness to vehicle ground dP fed ___ 412 VDC Reverse Circuit
14. nics Inc 415 N Maple Grove Boise ID 83704 800 453 1141 Copyright 2006 Page 1 of 12 370 001 2A sensor and reports this to the operator display The sensor is designed to process and report detections within 1 2 of a second allowing the vehicle operator to quickly respond to any object within the detection zone All connections to a vehicle are accomplished at the sensor Power is typically obtained from the vehicle reverse lights and a switched output is provided for operating a back up alarm or camera The connection to the display unit is through a watertight connector eliminating any potential problems with pin corrosion Power to the operator display is provided through the sensor interface to the display The High Resolution PreView sensor has continuous Built In Self Test which notifies the operator of sensor failure within a fraction of a second Operator Display Description The operator display provides the vehicle operator with both visual and audible indications of a detected object Range to the detected object is provided with five LED s Each LED represents 1 5 of the total range Example For the WB2015 each LED represents approximately 3 feet 1 meter The display unit also contains a buzzer to provide an audible alert that will increase in rate as an object becomes closer providing the operator with another cue that an object is being detected The operator display continuously monitors communication from the High R
15. rear of the vehicle should be clear of obstacles for a distance of 8 meters If the display shows any indicator other than the green light then there are objects to the rear of the vehicle that will interfere with the test Move the vehicle to a clear area and proceed 6 The assistant should move to just behind the rear corner of the vehicle in sight of the operator s mirrors He should then walk toward the centerline of the vehicle parallel to the rear noting when the external backup alarm activates signifying the sensor has detected him Upon hearing the backup alarm the operator should verify all the display LED s are lit and the audible alarm is quickly pulsing Note If an external backup alarm is not connected the operator will notice a detection only by the display LED s and buzzer operation and communicate the detection or lack of detection to the assistant as the assistant moves through the area to the rear of the vehicle 7 The assistant should continue walking through the area at the rear of the vehicle noting the area that detection occurs 8 Now walk from the center of the rear of the vehicle straight back away from the vehicle When the alarm quits sounding the detection limit has been reached 9 Move halfway back and remain still for a few seconds the alarm should continue to sound demonstrating the system s ability to detect a still object 10 The assistant should walk the complete rear of the vehicle noting the detection ed
16. s injury or death The PreView Object Detection System is intended for commercial use Proper installation of a back up aid requires a good understanding of truck electrical systems and procedures along with proficiency in the installation Store these instructions in a safe place and refer to them when maintaining and or reinstalling the product Testing and Maintenance NOTE A walk around test shall be performed every day to verify proper function of the system and to familiarize the operator with the zone of detection More frequent inspections should be performed when The vehicle is operating in a particularly dirty or harsh environment The operator has reason to suspect the system has been damaged This test should be performed with two people one who remains in the cab the operator and one who walks through the sensor field to the rear of the vehicle the assistant 1 Clean the sensor face of any accumulation of dirt mud snow ice or debris 2 Visually inspect the attached wiring and cable and verify that they are properly secured not chafing or dangling free where they could become snagged and damaged Inspect the Radar Sensor and Operator Display Module and verify that they are securely attached to the vehicle 3 Set the park brakes start the vehicle depress and hold the vehicle brake and place the vehicle in reverse 4 Verify the green POWER light is illuminated on the in cab display 5 The area to the
17. the following two conditions 1 this device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation Warning Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment Preco Electronics Inc 415 N Maple Grove Boise ID 83704 800 453 1141 Copyright 2006 Page 6 of 12 370 001 2A INSTALLATION INSTRUCTIONS Before You Start Prior to installing the High Resolution PreView Object Detection System take time to familiarize yourself with the installation instructions theory of operation and system components Check the contents of the shipping package and verify the following items are included Antenna Sensor 1 Display Unit 1 Interconnect Cable 1 User Manual Operating Instructions Sensor Stainless Steel Mounting Hardware 4 1 1 4 x 10 24 Bolts 4 Hex Locking Nuts 4 Flat Washers Display Mounting Hardware Mounting Bracket 2 4 40 Lock Nuts Sensor Antenna Location The High Resolution PreView sensor mounting location is key to proper system operation Ideally the sensor should be mounted on the rear center of the vehicle at roughly 36 1M 12 0 3M above the ground The sensor face should be perpendicular to the ground with the small end of the V graphic on the sensor face pointing down Select a locatio
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