Monitoring system and method used for freeway ramp mouth

Abstract

The invention discloses a monitoring system and method for a freeway ramp mouth. The method comprises the following steps of: drawing a ground mark line and arranging a video monitoring system near an exit ramp of a freeway; presenting a solid line which indicates cross prohibition and a no-parking area which indicates parking prohibition, which are drawn on the freeway, by a video picture in a video detection unit in a virtual way; and when a vehicle which is drivn illegally is detected, shooting a picture on a vehicle license number of the vehicle which is driven illegally immediately by animage acquisition unit so as to be facilitate later discipline. The system plays a role of alarming so as to improve the traffic efficiency of the freeway ramp mouth.

Description

technical field [0001] The invention belongs to the technical field of intelligent traffic control, and in particular relates to a monitoring system and method for an expressway ramp crossing. Background technique [0002] With the rapid development of the city, the demand for traffic is increasing day by day. Road traffic congestion leads to an increase in people's travel time, which brings inconvenience to people's daily life and also restricts the development of the urban economy. In order to alleviate road traffic congestion and shorten people's travel time, large and medium-sized cities have built expressways accordingly. Vehicles enter or exit the expressway through the on-ramp and off-ramp provided on the expressway. During peak traffic times, vehicles need to line up to enter or exit the ramp. [0003] Such as figure 1 As shown, when an incoming vehicle enters the expressway through the ramp entrance, it needs to pass through the No. 1 lane to enter the No. 2 lane...

AI Technical Summary

Problems solved by technology

[0011] In the above technical solution, the image collector installed at the intersection is mainly used to collect video streams, and at the same time, the image collector is used to collect the license plate information of illegal vehicles. Since this method can only collect information about illegal vehicles near the intersection, the general range can only be within Within 30 meters, the adjustment angle of the pan / tilt only changes the monitoring target. Since the focal length of the lens is not changed, the monitoring distance cannot be changed. It can be used for short-distance intersections (within 30 meters), but it is useless for long-distance monitoring of road sections. The high-definition camera whose lens can be changed automatically is used in the above technical solution, and it is impossible to use the same high-definition camera to monitor the long-distance vehicle driving status and capture clearly the license plate information of illegally crossing the line at the same time.

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