Pedestrian crossing system and method based on two-dimensional laser radar

Abstract

The invention relates to a pedestrian crossing system and method based on a two-dimensional laser radar. The pedestrian crossing system comprises the two-dimensional laser radar mounted in a pedestrian crossing waiting area in the center of a road section, and the two-dimensional laser radar is sequentially connected with a data processing module, a data sending module, a signal control device and a road section traffic signal lamp; the two-dimensional laser radar senses the state information of the pedestrian crossing waiting area; the data processing module analyzes to obtain pedestrian appearance information of the pedestrian crossing waiting area; the data sending module transmits pedestrian appearance information to the signal control device; and the signal control device analyzes and judges whether pedestrians wait in the pedestrian crossing waiting area according to the received pedestrian appearance information, and outputs corresponding control information to the road section traffic signal lamp so as to control the working state of the road section traffic signal lamp. Compared with the prior art, the pedestrians in the pedestrian crossing waiting area in the center of the road section can be accurately detected, the pedestrian waiting time is shortened, and the pedestrian crossing efficiency and the vehicle passing efficiency are improved.

Description

technical field [0001] The invention relates to the technical field of traffic intelligent control, in particular to a pedestrian crossing system based on two-dimensional laser radar and a method thereof. Background technique [0002] In recent years, with the vigorous promotion of green travel and slow traffic, in the aspect of pedestrian crossing control of intelligent transportation, the pedestrian detection technology has made great progress. At present, the pedestrian detection technologies widely used at home and abroad are manual counting method (traditional method), passive infrared induction (heat source detection), active infrared induction and ultrasonic detection technology. [0003] However, due to the unstable detection ability of passive infrared sensor detection technology and ultrasonic detection technology, there will be a high probability of false alarms when no pedestrians pass by, so they are not suitable for existing scenarios; [0004] The trigger con...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a two-dimensional lidar-based pedestrian crossing system and its method in order to overcome the defects of the above-mentioned prior art, which can be well applied to the sidewalk area without pedestrian signal lights and located in the center of the road section. To solve the problems of poor applicability and low detection accuracy of existing technologies, thereby reducing the waiting time of pedestrians in line and improving the efficiency of pedestrians crossing the road and vehicles

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