Fig. 6

Intelligent driving system. a Schematic of intelligent recognition of traffic lights. b Optical image of traffic lights intelligent recognition circuit system. c Flow chart of intelligent recognition system for traffic lights. The response current of the device is input to MCU1 through the IV conversion amplifier for recognition, to determine whether the traffic signal is red or green. Then, it is sent to the intelligent car to complete the “STOP” or “GO” action. d Response of PRM device to the traffic light and the motion state of the intelligent car at different time nodes. I to VI indicates the device response and vehicle motion status when the signal light is switched