Traffic signal light control device based on 485 communication

The utility model discloses a traffic signal light control device based on 485 communication, including traffic signal system, traffic signal system through AC220V power cord and 485 order wires be connected with respectively east, south, west, north each side to the traffic light controller, the traffic light controller includes CPU the control unit, electric current back production unit and scheme memory cell, CPU the control unit is connected with power supply unit and address setting unit respectively, just CPU the control unit receives and comes from traffic signal system's signal, through with the address setting unit connection is separated and is appeared the affiliated address of signal, controls the operation of lamp, the lamp of keeping straight on, the lamp of turning right, count -down board and pedestrian's lamp respectively. Compared with the prior art, the utility model discloses simple structure, reasonable in design, the input of not only having saved traffic light controlgear uses 485 commu