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Method and system for reducing the influence of pedestrian crossing on plane perception signal control efficiency

A technology for sensing signals and controlling efficiency, which is applied in the field of intelligent transportation and can solve problems such as poor control of signal lights and differences in traffic conditions

Active Publication Date: 2019-02-12
ANHUI KELI INFORMATION IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The second key to the system to reduce the impact of pedestrian crossings on the efficiency of plane perception signal control is to accurately determine whether the current traffic state belongs to low peak, flat peak, or peak. Or peak control strategy, the biggest problem in this way is that the determined control strategy is different from the actual traffic conditions, which leads to poor control effect of signal lights

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  • Method and system for reducing the influence of pedestrian crossing on plane perception signal control efficiency
  • Method and system for reducing the influence of pedestrian crossing on plane perception signal control efficiency
  • Method and system for reducing the influence of pedestrian crossing on plane perception signal control efficiency

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Embodiment 1

[0086] This embodiment provides a method for reducing the impact of pedestrian crossing on the control efficiency of plane perception signals, such as figure 1 shown, including the following steps:

[0087] S1: Plane accurate and continuous tracking of motor vehicles in each direction of the intersection, and obtain the number of motor vehicles in each direction, the instantaneous speed of each motor vehicle, and the precise position in real time. When the instantaneous speed of the motor vehicle continues to be zero, then Determine that the motor vehicle is in a stopped state; track and detect the number of pedestrians in the waiting area and the status of pedestrians in the crosswalk;

[0088] S2: Obtain the highest number of waiting times K1 for stopping when encountering a red light in the first direction and the highest number K2 for waiting for stopping when encountering a red light in the second direction;

[0089] S3: Judging whether the highest number of waiting time...

Embodiment 2

[0113] In this embodiment, on the basis of Embodiment 1, the following improvements are made. The precise and continuous tracking of the plane described in step S1 includes the following steps:

[0114] S11: set several plane detectors on the intersection, the plane detectors are used to continuously track motor vehicles; mark the detection range of the detectors, the upstream section of the signal light, and the downstream section of the signal light on the electronic map with latitude and longitude , and the position coordinate data of the detector (X j ,Y j ), the position coordinate data of the signal light (X x ,Y x ) marked on the electronic map;

[0115] S12: Obtain the current detection error of the detector (X c ,Y c ), judge the current detection error (X c ,Y c ) is within the set threshold range, if so, then enter step S13, otherwise an alarm signal is sent, indicating that the coordinate data of the correction marker position cannot be accurately obtained, ...

Embodiment 3

[0141] This embodiment provides a system that can reduce the impact of pedestrian crossing on the control efficiency of plane perception signals, such as Figure 6 shown, including:

[0142] Tracking unit 1, to carry out plane accurate and continuous tracking of motor vehicles in each direction of the intersection, and obtain the number of motor vehicles in each direction, the instantaneous speed and precise position of each motor vehicle in real time, when the instantaneous speed of the motor vehicle continues to be zero When the vehicle is stopped, it is determined that the motor vehicle is in a stopped state; the number of pedestrians in the waiting area and the status of pedestrians in the crosswalk are tracked and detected;

[0143] The number of parking times acquisition unit 2 is used to obtain the highest number of waiting times K1 for stopping when encountering a red light in the first direction and the highest number of waiting times K2 for stopping when encountering...

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Abstract

The invention provides a method and system for reducing the influence of pedestrian crossing on plane sensing signal control efficiency, and provides a control scheme which can obtain the red-light stopping frequencies in the first direction and the second direction, and adjust the signal lamp according to the red-light waiting frequencies in the two directions. When in the low peak condition, the automotive vehicles in the two directions wait and stop for the red light for zero time, the signal lamp in the first direction is green, and there are pedestrians passing through the cross walk in the first direction, so that the flashing time of the green light of a cross walk is prolonged; the signal lamp in the first direction is green, the cross walk in the first direction has no pedestrians to pass through, and there are pedestrians in the waiting area of a crossing in the first direction or the number of pedestrians waiting for passing through the cross walk exceeds the setting threshold, so that the green light signal of the cross walk is started or the green light signal of the cross walk is prolonged; and otherwise, the red light is maintained or the cross walk light is set to be light, in this way, the influence of the pedestrian crossing on signal lamp passing efficiency can be reduced.

Description

technical field [0001] The invention relates to the technical field of intelligent transportation, in particular to a system for reducing the influence of pedestrians crossing the street on the control efficiency of plane perception signals. Background technique [0002] Improving the efficiency of the intersection signal control system, reducing the time lost for green lights, reducing the number of motor vehicle parking, shortening the parking time, and at the same time ensuring that pedestrians pass through the intersection safely and conveniently has become a topic of concern, which has attracted experts and scholars at home and abroad to invest a lot of energy in research , due to the technical level limitation of motor vehicle and pedestrian detectors, reducing the impact of pedestrian traffic on the control efficiency of plane perception signals has encountered a bottleneck. [0003] One of the key issues of the system to reduce the impact of pedestrian crossing on th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/08
CPCG08G1/08
Inventor 梁子君王家捷宋志洪石勇陶刚张博
Owner ANHUI KELI INFORMATION IND
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