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AGD AGD340 Product Manual

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PRODUCT MANUAL
AGD340
Enforcement Radar
AGD-SYSTEMS.COM
AGD340
Enforcement Radar

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Summary of Contents for AGD AGD340

  • Page 1 AGD340 Enforcement Radar PRODUCT MANUAL AGD340 Enforcement Radar AGD-SYSTEMS.COM...

  • Page 2: Table Of Contents

    13-14 Low power non-ionising radio Target tracking 15-16 transmission and safety Radar characteristics Radar performance 18-19 CERTIFICATION 44-46 RADAR COMMANDS Radar Command list 20-22 DISCLAIMER 25KHz reference signal & the *FE command 23 Radar initialisation WARRANTY AGD340 | ENFORCEMENT RADAR...

  • Page 3: Introduction

    AGD340 INTRODUCTION Enforcement Radar PRODUCT AND TECHNOLOGY This product has been designed specifically to measure the speed of passing vehicles for enforcement purposes. The 340 CW Doppler radar operates in the K-band at 24GHz. It is suitable for many national requirements.

  • Page 4: Typical Applications

    AGD340 INTRODUCTION Enforcement Radar TYPICAL APPLICATIONS Speed enforcement radar traffic detection - approaching Speed enforcement radar traffic detection - receding PRODUCT OVERVIEW Flange mounting points Power/Test connector Status LED RS422 Data connector Tripod mounting point AGD340 | ENFORCEMENT RADAR...

  • Page 5: Installation

    Mounting Angle: 7.5˚ application careful consideration of the radar below horizontal beam and its shape is required to ensure that all Targets: vehicle reflection the lanes of the road are covered. from a height of 1m AGD340 | ENFORCEMENT RADAR...
  • Page 6 Note in this mode it is possible for the target messages to be interleaved between each other when targets are travelling in the beam at the same time but in different directions. AGD340 | ENFORCEMENT RADAR...

  • Page 7: System Hardware Overview

    SYSTEM HARDWARE AGD340 OVERVIEW Enforcement Radar MC-104 CB192 RS422 UART LEDs Temperature Sensor FIFO CPLD EEPROM Main Flash Boot Flash SDRAM CB206 AGD340 | ENFORCEMENT RADAR...

  • Page 8: Rs422 Serial Interface

    The temperature of the radar may be requested using the TEMP command. NON VOLATILE MEMORY An EEPROM is installed on the board to provide non volatile memory. The primary use of this EEPROM is to store configuration and calibration data. AGD340 | ENFORCEMENT RADAR...

  • Page 9: Power Supply

    This is used for a test signal – do not connect Reference Oscillator 24992.54Hz ±50PPM Ground Spare This pin is not fitted to the bulkhead connector The data connector is a Bulgin PX0412/08P. (Mating Type PX0410/08S/6065 is recommended) AGD340 | ENFORCEMENT RADAR...

  • Page 10: Iq Internal Connectors

    Doppler target. The DIR signal controls whether the Q channel lags or leads by 90º and therefore controls the effective direction the simulated target is travelling. AGD340 | ENFORCEMENT RADAR...
  • Page 11 The I and Q signals from the CPLD are then filtered before being applied to the –ve input of the digitisers board input operation amplifiers. The filter reduces the harmonic content of the I and Q signals to a level which the radar can cope with. AGD340 | ENFORCEMENT RADAR...

  • Page 12: Overview

    Enforcement Radar IQ INTERNAL CONNECTORS The AGD340 radar is a real time radar that continuously samples the input. The radar uses a real time operating system that is continuously performing a number of tasks simultaneously using a time multiplexing method.

  • Page 13: Detection Task

    Target detect Filter out Approaching Track targets approaching targets mode? Receding Filter out receding mode? targets Filter out receding targets Dual Filter out direction Track targets approaching targets mode? Report DSB targets? Report detected DSB targets AGD340 | ENFORCEMENT RADAR...
  • Page 14 The FFT result returns the Doppler frequency of a target which is further processed to give a higher accuracy measurement. This allows the radar to measure the Doppler frequency to provide results that are accurate to ±0.1kph. AGD340 | ENFORCEMENT RADAR...

  • Page 15: Target Tracking

    Gap = Gap+1 distance exceeded? message (BEM) Gap>Exit distance send valid detect Send beam exit message message Targets =1 Same speed target? Send No detect Wait for target to Send beam exit Exit message exit beam message AGD340 | ENFORCEMENT RADAR...
  • Page 16 This may happen if the second vehicle is tail gating the first vehicle. In this case the normal beam entry, valid detect and beam exit messages will be produced as if the two targets were a single target. AGD340 | ENFORCEMENT RADAR...

  • Page 17: Radar Characteristics

    The change in frequency with temperature is measured to be -250KHz/˚C The radar frequency and power is as follows; PARAMETER SPECIFIED NOTES Operating Frequency Band 24.050 – 24.150 GHz (24.075 – 24.175GHz USA variant) Power <100mW eirp Field Strength Typically 730mV/m At 3m ITU Code 3M2NON AGD340 | ENFORCEMENT RADAR...

  • Page 18: Radar Performance

    F0=24.100GHz Physical and RF bore alignment ±0.31% ≤ 0.4º Limit of F0 variation ±0.05% -250KHz/ºC assuming 24.100GHz at 20ºC VALIDATION ACCURACY Roadside accuracy average ±0.43% (standard deviation ±0.42%) Typical performance based on 33 traceable readings AGD340 | ENFORCEMENT RADAR...
  • Page 19 Typical Radar Output The following is a typical radar output for normal operation; CF,000090C7*7E 01,000094D4,0000001E,A,046.5,K*2D 02,0000957A,0000001E,A,043.7,K,010.1,022.0,H*4A 04,0000957A,0000001E,A,043.7,K*28 CF,00009868*0C 01,000099BA,0000001F,A,047.1,K*55 02,00009A5B,0000001F,A,046.4,K,010.1,022.0,H*3A 04,00009A5B,0000001F,A,046.4,K*58 CF,0000A009*7B CF,0000A7AA*75 01,0000A97F,00000020,A,052.5,K*2A 02,0000AA22,00000020,A,051.4,K,011.5,022.0,H*43 04,0000AA22,00000020,A,051.4,K*24 01,0000AE71,00000021,A,032.1,K*22 CF,0000AF4C*73 02,0000AF62,00000021,A,030.3,K,009.9,022.0,H*44 04,0000AF62,00000021,A,030.3,K*26 CF,0000B6ED*76 CF,0000BE8E*79 01,0000C489,00000022,A,045.3,K*57 02,0000C52C,00000022,A,040.3,K,008.7,022.0,H*4B 04,0000C52C,00000022,A,040.3,K*26 CF,0000C62F*02 AGD340 | ENFORCEMENT RADAR...

  • Page 20: Radar Commands

    COMMAND FUNCTION UNITS, RESOLUTION, VALUES AND COMMENTARY DEFAULT AGD or Reports the name of the #AGD radar and its firmware AGD340 Speed Enforcement Radar version. Firmware Version MI-096-A #AGD [STX]C2,0003A651,AGD340,MI-096-A*08[ETX] *AD or #AD Used to enquire the radar’s 22.0 mounting angle setting, 22.00...

  • Page 21: Radar Command List

    Sets the low speed threshold velocity to x. The units of x are in the presently set speed units (See *SU). #LS is similar but responds with a C7 message. REBOOT Performs a software reboot of the radar. AGD340 | ENFORCEMENT RADAR...
  • Page 22 The #VER reports the software version in a CB message #VER version of the radar. This command reports the These are unique to each DSP board and cannot be adjusted. A typical security numbers of the output is as follows; DSP board. [STX]F0,18541854,2D392D42,3AF33AF3,55955595*50[ETX] AGD340 | ENFORCEMENT RADAR...

  • Page 23: 25Khz Reference Signal & The *Fe Command

    On power up or reboot of the radar the following is a typical message showing the intialisation sequence and the self test messages. User configuration successfully loaded AGD340 Speed Enforcement Radar Firmware Version MI-096-1 Baud rate = 115200 AGD340 Speed Enforcement Radar Firmware Version MI-096-1 01,000000CF,00000001,X,075.4,K*38...

  • Page 24: Message Formats

    Target speed to one decimal place in decimal format ‘,’ Speed Units ‘M’=mph The speed units used for the measurement ‘K’= kph ‘*’ Asterisk Check Sum ‘XX’ Check sum in hexadecimal format End of message byte AGD340 | ENFORCEMENT RADAR...
  • Page 25 This is the angle the radar uses to calculate the speed of a target ‘,’ ‘L’=Low Sensitivity level the radar is set to ‘H’=High ‘*’ Asterisk Check Sum ‘XX’ Check sum in hexadecimal format End of message byte AGD340 | ENFORCEMENT RADAR...
  • Page 26 Turn D0 messages on *DM 0 Turn D0 messages off The D0 message format is shown below. Frame Number of Target Target Number Targets (N) Speed (S Amplitude (A Target Target Amplitude Check Sum Speed (S AGD340 | ENFORCEMENT RADAR...
  • Page 27 D0 messages contain a lot of information about the track history of a target as it travels through the beam. The D0 messages could be used to provide extra evidence about any particular speeding offence. For instance the diagram on the following shows a typical D0 sequence for a vehicle approaching the radar. AGD340 | ENFORCEMENT RADAR...
  • Page 28 0 and twice the actual speed of the vehicle. However because the wheel spurious signals are not consistent a track is never formed on them. The speed reported by the radar in the valid detect and beam exit messages will be the one associated with the largest magnitude detected. AGD340 | ENFORCEMENT RADAR...

  • Page 29: Radar Status Messages

    Message type ‘,’ Comma Frame Number XXXXXXXX Frame number in hexadecimal format ‘,’ Comma Radar Mounting Angle DD.DD Radar mounting angle in degrees ‘*’ Asterisk Check Sum ‘XX’ Check sum in hexadecimal format End of message byte AGD340 | ENFORCEMENT RADAR...
  • Page 30 AGD340 MESSAGE FORMATS Enforcement Radar RADAR STATUS MESSAGES C2 message This message is sent in response to a #AGD command. The message reports the radar type and firmware version. The message format is shown below. Frame Firmware Check Radar Model...
  • Page 31 ‘,’ Comma Frame Number XXXXXXXX Frame number in hexadecimal format ‘,’ Comma ‘0’ = Off DDS Mode DDS mode ‘1’ = On ‘*’ Asterisk Check Sum ‘XX’ Check sum in hexadecimal format End of message byte AGD340 | ENFORCEMENT RADAR...
  • Page 32 Frame Number XXXXXXXX Frame number in hexadecimal format ‘,’ Comma Debug Mode ‘0’ = Off Debug mode of radar ‘1’ = On ‘*’ Asterisk Check Sum ‘XX’ Check sum in hexadecimal format End of message byte AGD340 | ENFORCEMENT RADAR...
  • Page 33 XXXXXXXX Frame number in hexadecimal format ‘,’ Comma Low Speed Threshold DDDDD ‘,’ Comma Speed Units ‘M’=mph Speed units being used ‘K’=kph ‘*’ Asterisk Check Sum ‘XX’ Check sum in hexadecimal format End of message byte AGD340 | ENFORCEMENT RADAR...
  • Page 34 Frame Number XXXXXXXX Frame number in hexadecimal format ‘,’ Comma ‘M’ = mph Speed Units Speed units being used ‘K’ = KHP ‘*’ Asterisk Check Sum ‘XX’ Check sum in hexadecimal format End of message byte AGD340 | ENFORCEMENT RADAR...
  • Page 35 ‘,’ Comma BIOS CRC32 XXXXXXXX BIOS flash checksum value Check Sum ‘,’ Comma Main CRC32 XXXXXXXX Main flash checksum value Check Sum ‘*’ Asterisk Check Sum ‘XX’ Check sum in hexadecimal format End of message byte AGD340 | ENFORCEMENT RADAR...

  • Page 36: Radar Error Messages

    NAME SIZE / BYTES VALUE NOTES Start of message byte ‘CF’ Message type ‘,’ Comma Frame Number XXXXXXXX Frame number in hexadecimal format ‘*’ Asterisk Check Sum ‘XX’ Checksum in hexadecimal format End of message byte AGD340 | ENFORCEMENT RADAR...
  • Page 37 2 Digit hexadecimal number indicating the length of the text Text length, N description ‘,’ Comma Text Description “Some text string” Text string of length N ‘*’ Asterisk Check Sum ‘XX’ Check sum in hexadecimal format End of message byte AGD340 | ENFORCEMENT RADAR...

  • Page 38: Antenna Plots

    • • •••••••• • •• •• •••••• • • • • • • • • • • • • • • • • • • • • • Vertical Beam Pattern ••• • •• •• •••••••••••• ••• • •• •• •••••••••••• 3dB Level AGD340 | ENFORCEMENT RADAR...

  • Page 39: Technical Specifications

    ETSI 300.440 / FCC CFR47 Part 15.245 AS/NZS 4268 Higheat Temp Humidity Combination 50ºC 80% Owing to the Company’s policy of continuous improvement, AGD Systems Limited reserves the right to change their specification or design without notice. AGD340 | ENFORCEMENT RADAR...

  • Page 40: Test & Calibration

    Simulated speed accuracy <100ppm • Optimisation of frequency signals • Transmitted radar power and frequency measurement • Target image rejection optimisation • Radar signal to noise level measurement • >15hr hour burn-in • Test cycle time 9 minutes AGD340 | ENFORCEMENT RADAR...

  • Page 41: Manufacturing Test Process

    PROCESS Enforcement Radar Triton™ is a bespoke set of test equipment designed and developed by AGD Systems. It is dedicated to the testing of the 340 speed enforcement radar detector range and 100% of these units manufactured at AGD are Certified by Triton.

  • Page 42: Important Safety Information

    Under no circumstances should a product suspected of damage be powered on. Internal damage may be suggested by unusual behaviour, an unusual odour or damage to the outer casing. Please contact AGD for further advice. AGD340 | ENFORCEMENT RADAR...

  • Page 43: Low Power Non-Ionising Radio

    It is considered to be good practice not to subject humans to radiation levels higher than is necessary. In a works environment where multiple equipment on soak test are to be encountered then it is considered good practice to contain the equipment in an appropriate enclosure lined with radar absorbing material. AGD340 | ENFORCEMENT RADAR...

  • Page 44: Certification

    AGD340 CERTIFICATION Enforcement Radar AGD340 | ENFORCEMENT RADAR...
  • Page 45 AGD340 CERTIFICATION Enforcement Radar AGD340 | ENFORCEMENT RADAR...
  • Page 46 AGD340 CERTIFICATION Enforcement Radar AGD340 | ENFORCEMENT RADAR...

  • Page 47: Disclaimer

    Warranty All AGD products are covered by a 12 month return to factory warranty. Products falling outside this period may be returned to AGD Systems...

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