Intelligent traffic signal control system based on power line carrier

An intelligent traffic signal control system based on power line carrier belongs to the technical field of intelligent traffic control. The system comprises control host machine modules and a plurality of slave machine modules. The utility model adopts the main technical characteristic that each control host machine module or each slave machine module comprises a power line carrier receiving/sending module. The system is characterized in that the power line carrier technology is fully utilized to transmit and control signals, so that the signals and power supply are transmitted through the same cable, and a crossing signal indication device is effectively controlled. Besides, the device supports the control function of a wired and wireless data transmission upper computer, has convenient phase configuration and timing operation, and can be used by operating staffs very conveniently.