Road traffic signal control method and system based on video detection of pedestrians crossing the street

Abstract

A road traffic signal control method and system based on video detection of pedestrians crossing the street. The method includes the following steps: Step S1: collecting pedestrian video images of the waiting area outside the crosswalk; Calculate and obtain the number of pedestrians in the waiting area, and count when the first pedestrian is obtained; Step S3: Determine whether the number of pedestrians in the waiting area exceeds the preset number, or whether the waiting time of the first pedestrian exceeds the preset time, if the two If yes, execute step S4; if both are no, return to step S2; and step S4: switch the pedestrian traffic signal to a green state. The invention can collect video images of pedestrians through video, thereby automatically switching pedestrian traffic signal lights from a red light state to a green light state according to the number of pedestrians or waiting time, thereby reducing pedestrian waiting time and improving traffic management efficiency.

Description

technical field [0001] The invention relates to a road traffic signal control method and system based on video detection of pedestrians crossing the street. Background technique [0002] The existing road traffic signal control system mainly adopts the button trigger method for controlling pedestrian crossing. By setting pedestrian buttons on both sides of the crosswalk, pedestrians can trigger the crossing signal to the signal machine by pressing the button. After the trigger signal of the road, according to the internal setting of the signal machine, the state of the current signal light is appropriately changed to the green light state, so that pedestrians can pass through the road. The way of this pedestrian button can reduce the waiting time of pedestrians on both sides of the crosswalk and improve pedestrian passing. Efficiency of crosswalks. [0003] However, there are following problems in the pedestrian crossing control method with the pedestrian button mode: since...

AI Technical Summary

Problems solved by technology

[0003] However, the pedestrian crossing control method with pedestrian buttons has the following problems: because the button needs to be touched by hand, the installation position is relatively low, and it is easy to be damaged artificially.

Since it does not take effect immediately, it will affect many people, mistakenly thinking that the device is damaged, and not using it later, which reduces the efficiency of use

[0005] Moreover, the contact pedestrian button can only be convenient for pedestrians to cross the crosswalk when the red light is on, and the control of switching from the red light to the green light can reduce the time for pedestrians to wait for the red light on the street and improve the efficiency of pedestrians crossing the crosswalk. The method cannot detect the process of pedestrians passing the crosswalk, cannot judge whether all pedestrians have passed the crosswalk, and cannot control the extension of the green light time, so that the safety of pedestrians in the crosswalk cannot be guaranteed due to accidents or delays

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