AGD 332 User manual

PRODUCT MANUAL
© AGD Systems Limited 2022 Doc. Ref 332 PM ISS1
AGD 332
SIGN ACTIVATION RADAR
AGD 332
SIGN ACTIVATION RADAR
AGD 332
SIGN ACTIVATION RADAR
AGD 332
SIGN ACTIVATION RADAR

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AGD 332
SIGN ACTIVATION RADAR
AGD 332
SIGN ACTIVATION RADAR
AGD 332
SIGN ACTIVATION RADAR
AGD 332
SIGN ACTIVATION RADAR
INTRODUCTION
Product & technology 3
Key features 3
Typical applications 3
Product overview image 4
Product variants 4
Product overview 4
INSTALLATION
Radar mounting 5
Radar installation - range 6
SYSTEM HARDWARE OVERVIEW
Power & communications 7-8
RADAR COMMANDS & CONFIGURATION
Radar command overview 9
Command list 10-11
Output configuration string 12
RS232 output message 13
Radar count output 14
Firmware update 15
Dynamic Frame Rate 15
Dip switch SW2 configuration 16
Dip switch SW1 configuration 17
Rotary switch SW3 configuration 18
HELP
Troubleshooting 19-21
RADAR CHARACTERISTICS
General 22
Antenna plots 23
Frequency variants 24
TECHNICAL SPECIFICATIONS
Product specification 25
MANUFACTURING TEST PROCESS
Ariel Test Equipment 26
CERTIFICATION 27
END OF LIFE - DISPOSAL INSTRUCTIONS (EOL) 28
IMPORTANT SAFETY INFORMATION
Safety precautions 29
Low power non-ionising radio transmission
and safety 30
DISCLAIMER 32
Warranty 32
Contact Details 32
safer, greener, more eicient
Table of Contents

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AGD 332
SIGN ACTIVATION RADAR
AGD 332
SIGN ACTIVATION RADAR
AGD 332
SIGN ACTIVATION RADAR
AGD 332
SIGN ACTIVATION RADAR
The 332 detector is a true ranging FMCW radar
designed for OEM integration into Vehicle
Actuated Sign (VAS) applications.
Operating in the 24GHz K-band, the 332 oers an
accurate speed measurement while discriminating
between advancing and receding traic.
Technical advancements allow for extremely
low power consumption while maintaining vehicle
detection distances up to 180 metres.
Introduction
PRODUCT & TECHNOLOGY
KEY FEATURES
• Target speeds reported based upon multiple configurable parameters
• Range to target up to 180 metres
• Speed measurement 11kph - 160kph (4kph - 160kph low speed mode)
• Bi-directional discrimination
• Dynamic frame rate for further reduction in power consumption (Patent pending)
• Two independent FET switched outputs
• RS232 serial communications for configuration and data output
TYPICAL APPLICATIONS
Sign Activation - Speed Sign Activation - Warning

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AGD 332
SIGN ACTIVATION RADAR
AGD 332
SIGN ACTIVATION RADAR
AGD 332
SIGN ACTIVATION RADAR
AGD 332
SIGN ACTIVATION RADAR
Introduction
PRODUCT OVERVIEW
The 332 radar has taken the powerful feature rich experience from the low power AGD331. Using the latest power
saving technology, the radar’s design is a unique pulsed, frequency modulated transceiver linked to a 32bit ARM
Cortex M4 processor. This helps deliver market leading radar performance while maintaining extremely low
power usage.
Traditional Continuous Wave (CW) Doppler radars for sign driving applications have no ranging capability.
The 332 contains filter-down technology from AGD enforcement products, this furnishes the radar with a full
multi-target acquisition platform, accurate range measurement, and adjustable output rate of targets. To the
VAS designer, this simply means the system power is more eiciently managed by the ability to select the area of
interest accurately (regardless of vehicle size).
Designed to be simple to use and quickly deployed with a variable sign solution, the 332 range and low speed
can be set-up via an RS232 serial interface.
PRODUCT OVERVIEW IMAGE
PRODUCT VARIANTS
Product No. Description
332-100-000 Sign Activation Radar/12V/24.2GHz/RS232
332-101-000 Sign Activation Radar/12V/24.125GHz/RS232 (FCC)
Front (power on)
detect LED
Pan and tilt
mounting foot Power and
RS232 output
Rear (power on)
detect LED

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AGD 332
SIGN ACTIVATION RADAR
AGD 332
SIGN ACTIVATION RADAR
AGD 332
SIGN ACTIVATION RADAR
AGD 332
SIGN ACTIVATION RADAR
Installation
PHYSICAL INSTALLATION
The radar should be mounted on a firm structure at the recommended mounting height of 2m to 5m. For
optimum performance the radar should be situated on a pole adjacent to the carriageway with an unobstructed
view of the advancing traic. The radar should point down the road towards the furthest point of detection.
The front face of the radar should be vertical i.e. perpendicular to the road before you begin site specific
adjustments.
The relatively wide beam profile of the 332 ensures good detection coverage of single or dual lane approaches
with relatively little adjustment of the sign in relation to the direction of approaching targets.
The recommended mounting height of the radar within the sign is between 2-5 meters with the optimum
being 3 metres.
The radars front face should be 90
0
to the road surface, inclines in the road surface should be catered for by
adjusting the 332 radars mounting angle.




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AGD 332
SIGN ACTIVATION RADAR
AGD 332
SIGN ACTIVATION RADAR
AGD 332
SIGN ACTIVATION RADAR
AGD 332
SIGN ACTIVATION RADAR
Installation
PHYSICAL INSTALLATION
The 332 is a true range measuring radar that allows the user to select the range that target starts reporting on
tracked targets.
Each target needs to return suicient signal in order for the radar to track its range. A target return amplitude is
related to its Radar Cross Section (RCS) which is in part related to the reflecting area of the target. Targets that
have a larger RCS will return a larger signal than those with a smaller RCS.
For example: If the detection range is set at 80 metres then all targets that return enough reflective power before
this point will be tracked. Only when the target reaches 80 metres will the detection be reported, allowing for
accurate actuation of the sign at the correct range.
Maximum
Range 180m
Dual Lane
Detection 25m
Minimum
Range 16m

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AGD 332
SIGN ACTIVATION RADAR
AGD 332
SIGN ACTIVATION RADAR
AGD 332
SIGN ACTIVATION RADAR
AGD 332
SIGN ACTIVATION RADAR
System Hardware Overview
POWER & COMMUNICATIONS
Terminal Connections
Wire Colour Function Power Off Power On - No Detect Power On - Detect
Red +5.5 to 15Vdc - - -
Black 0Vdc / RS232 GND / Switched GND - - -
Brown RS232 TX - - -
Violet RS232 RX - - -
White 0Vdc / RS232 GND / Switched GND - - -
Blue Switched Output 1 (FET1) N/O N/O N/C
Yellow Switched Output 2 (FET2) N/O N/O N/C
Green 0Vdc / RS232 GND / Switched GND - - -
Power
The radar is powered using a DC voltage in the range
of 5.5 – 15Vdc.
Power consumption whilst detecting 15.6mA @ 12V
Power consumption whilst not detecting with default dynamic
frame rate set 11.2mA @12V (see page 15 for further detail)
Power consumption when operating in the Low Speed mode
(*OM=LS) 27.8mA @12V
Power-Up Sequence
Upon initialisation from power-up or *REBOOT! the LED will
flash five times to indicate the radar has powered-up correctly.
FET Switched Outputs
The switched outputs are implemented using field eect
transistors (FET) operating in pull down mode and connected to 0V.
The FETs are protected by overvoltage circuitry so the outputs are rated at:
Max Voltage 15V
Max Current 50mA
All connections should be made to the unit before applying power.
5 7 9 11 13 15 166 8 10 12 14 17
332 CURRENT
Supply voltage (v)
Supply current (mA)
70
65
60
55
50
45
40
35
30
25
20
15
10
5
0
5.5 6 8 10 12 14 15
331 CURRENT
Supply voltage (v)
Supply current (mA)
70
65
60
55
50
45
40
35
30
25
20
15
10
5
27.8mA
15.6mA
11.2mA
15mA
65mA - AGD330
FIG 1: SUPPLY CURRENT VS. SUPPLY VOLTAGE
KEY:
___
*OM = LS Mode
___
NS Detect
___
NS Non Detect (default DFR)

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AGD 332
SIGN ACTIVATION RADAR
AGD 332
SIGN ACTIVATION RADAR
AGD 332
SIGN ACTIVATION RADAR
AGD 332
SIGN ACTIVATION RADAR
System Hardware Overview
POWER & COMMUNICATIONS
RS232 UART Interface
A UART interface is provided that uses RS232 voltage levels on the terminal connector:
Default UART Settings
Communications can be established with the 332 Radar using CA-293 (FTDI USB-232 converter) cable assembly
supplied separately. It should be connected as follows:
332 Flying Lead Wire Colour CA-293 Pin-out
Black, White or Green 0v / GND
Brown TXD
Violet RXD
Please note: The board attached to CA-293 switches Tx and Rx functions ready for PC connectivity. If a
different FTDI USB-232 converter cable is used you might have to switch Tx and Rx functions manually by
swapping the violet/brown wires.
Parameter Settings
Baud rate 115200
Data bits 8
Parity None
Stop bits 1
Flow control (handshaking) None
Transmit delay 0

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AGD 332
SIGN ACTIVATION RADAR
AGD 332
SIGN ACTIVATION RADAR
AGD 332
SIGN ACTIVATION RADAR
AGD 332
SIGN ACTIVATION RADAR
Radar Commands and Configuration
RADAR COMMAND OVERVIEW
Commands can be used to control the operation of radar. These are sent over the RS232 UART Link.
Commands are immediately followed by an operator that indicates the required action. Not all the operators
are supported for all commands. Where an operator is used and it is not supported the radar will respond with
warning message. The table shows the commands used by the radar.
Operator Operation
= Set a parameter to a value e.g. *LS=50<CR>
? Respond with value or values
^ Set default value for parameter
$ Provide help on the command
! Do something e.g. *REBOOT! Reboots the radar
Command Operators
Where a command is used to enquire or set a radar parameter the radar will respond in a set way. The radar
will respond with a hash, #, followed by the command name, operator used and then the value of parameter or
parameters.
For example
*DIR=A<CR> Radar responds with #DIR=A<CR>
*DIR?<CR> Radar responds with #DIR?A<CR>
Communication Tasks
The operation of the 332 radar has been optimised as a low power device with minimal processing overhead.
It is good practice to not ‘overrun’ the communication line with repeated send commands when the radar is
operational.
Command requests to store settings are written to EEPROM each time they are sent from the host system,
repeated sending of commands will erode the lifetime capacity of the radars non-volatile memory.

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AGD 332
SIGN ACTIVATION RADAR
AGD 332
SIGN ACTIVATION RADAR
AGD 332
SIGN ACTIVATION RADAR
AGD 332
SIGN ACTIVATION RADAR
Radar Commands and Configuration
COMMAND LIST
Command Operator Description Default Lower
Limit
Upper
Limit
Comments
AGD -Shows detector type & version
information
---Reports radar model and
version information
*BAUD ?
=
^
$
Baud rate for RS232 115200 9600 460800 Baud rates: 9600
115200
230400
460800
*CHAN ?
=
!
$
Set channel of radar 114Comments = When co-locating
the 332 it is important to
ensure each radar is operating
on a separate channel
*COUNTDIR ?
=
^
$
Enquire / set the direction of vehicle count A--A = Advancing
R = Receding
B = Bi-Directional
*DEFAULTS !
$
Set all radar parameters to their default
values
----
*DEFAULTSTATS !
$
Resets the number of target detections as
reported by *STATUS? command
----
*DFR ?
=
^
Dynamic frame rate.
When set to a value >1, if the radar does
not detect a potential target it will not
transmit again for the set number of
frames
2020 This is used to further reduce
power consumption. See
page 15.
Note: *DFR is NOT available when
operating in low speed mode
(*OM=LS)
*HELP ?
$
!
Displays all user commands ----
*HOLDTIME ?
=
^
$
The time the switched output is held on
after the target has left the detection zone
setting global to both outputs
500 10 2000 Values are in milliseconds
*LED ?
=
^
$
Enquire / set the operation of the LED on
the rear of the unit.
ON OFF ON *LED=0 turns off LED
*LED=1 turns on LED
*MM ?
^
$
=
Targets reporting method
1 = Fastest target
2 = Oldest valid tracked target
3 = Average Speed of oldest tracked target
213-
*MONITOR ?
=
^
$
Switched output 1 will produce a constant
demand if no target is seen for the
duration of the monitor time
0072 Hours where 0 is off
*MS ?
=
^
$
Message type
02 = dd(10fps)
06 = *Sddd (10 fps)
09 = *Sddd (5fps)
12 = *ddd,D Where D is A for advancing
and R is for receding
12 02 12 -