Mr. Esther, I understand what the technician expressed to me.
All road gate barriers in China use license plate recognition and radar or loop detectors
Typically, the signal to open the road gate barrier is signaled by the output of the license plate recognition system to the main board of the barrier, which raises the barrier and opens it.
The signal to lower the road gate barrier is the output of the barrier radar.
Suppose you have your own access control system and therefore do not need license plate recognition to control the gate open signal.
The gate opening signal that you need to implement can look like this.
So how do you wire your access control system that wants to output an automatic barrier to open the gate?
Simply plug in two wires. As shown in the diagram below
Plugging in the top two wires will enable docking you to access the control system’s open gate signal.
So could it be realized that the radar detects the car and opens the barrier.
What about barrier radar to control the opening of the road gates?
It is also possible.
It can be realized by following the wiring diagram on the right below.
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