Traffic light state identification method, system and device, and storage medium

The invention discloses a traffic light state recognition method, system and device, a storage medium and a traffic light state recognition method. The traffic light state recognition method comprisesthe steps: detecting whether a vehicle stops or not; if the vehicle stops, acquiring first video data; obtaining a first video frame image and a second video frame image according to the first videodata; judging whether a difference value between the coordinate position of the red light area in the first video frame image and the coordinate position of the green light area in the second video frame image is within a preset difference value range or not; and if the difference value is within the preset difference value range, outputting prompt information. The difference value between the coordinate position of the red light area in the first video frame image and the coordinate position of the green light area in the second video frame image is judged to be within the preset difference value range so as to judge