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5 COUNTING FUNCTION
The relay 1 toggles from [detection] -> [no detection] each time a vehicle passes the stop line.
6 WHAT TO TRY IF...
•
The 60 meter range of the “movement only” zone is not reached:
o
Check if the bracket n°1 is well parallel to the traffic lane;
o
If there is a curb in the street, turn slightly the bracket n°1 in direction of the curb to move the detection
zone.
•
If Relay 1 stays closed even after the vehicle left the “stop-line” zone:
o
Check that the vehicles stop minimum 2 meters in front of to the radar pole.
o
If the distance (offset) between the pole and the traffic lane is too wide, you can incline slightly the
radar in direction of the pavement/signal side.
To keep in mind :
-
The TMA-122 is not designed to detect on more than a single lane road (approaching traffic).
-
Receding traffic within the radar lobe has no effect.
-
To get the best result in terms of accuracy, the radar bracket (n°1) must be parallel to the approaching traffic
direction.
-
The presence (stationary) detection is based on tracking algorithms: the radar needs to detect an approaching
movement combined to a decreasing speed to validate the detection. Therefore, cars already parked during
the installation won’t be detected.
-
The radar might be sensitive to pedestrian movement: if a pedestrian crosses the road between the vehicle and
the stop-line, it might interfere. Furthermore, if the radar lobe is partly on the pedestrian path, a pedestrian
moving or stopping within the detection area might also create a false detection status.
