Accumulated water monitoring-based crossing traffic signal control method and system

A technology of traffic signal and control method, applied in the field of intelligent transportation, can solve the problems of incapability of traffic jam, selection of control parameters, etc., and achieve the effect of smooth driving

Inactive Publication Date: 2017-05-10
北京博研智通科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is the technical problem of traffic jams caused by waterlogging at intersections and the inability to accurately select control parameters according to the current traffic state in the prior art, and further provides a traffic signal control method and system at intersections based on waterlogged monitoring

Method used

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  • Accumulated water monitoring-based crossing traffic signal control method and system
  • Accumulated water monitoring-based crossing traffic signal control method and system
  • Accumulated water monitoring-based crossing traffic signal control method and system

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Embodiment 1

[0050] This embodiment provides an intersection traffic signal control method based on accumulated water monitoring, which is applied to an intersection signal controller, such as figure 1 shown, including the following steps:

[0051] S1: Real-time monitoring of the water height within the range of each driving direction at the intersection, continuous plane and precise tracking of motor vehicles in each direction of the intersection, and real-time acquisition of the number of motor vehicles in each direction, the instantaneous speed and precise position of each motor vehicle . When the instantaneous speed of the motor vehicle continues to be zero, it is determined that the motor vehicle is in a stopped state; figure 2 shown. The figure shows a waterlogging detection area in the direction of travel. The water accumulation detection area is at the straight exit from west to east in the figure. Specifically, the distance between it and the intersection can be set according...

Embodiment 2

[0060] On the basis of embodiment 1, this embodiment realizes the scheme in step S2 through the following manner, as image 3 shown, including the following steps:

[0061] S21: Record the number of times each motor vehicle waits to stop at a red light before crossing the stop line; wherein the initial value of the number of times each motor vehicle stops to wait at a red light is zero; specifically, a driving state table can be established to record each The driving state of a motor vehicle, the driving state includes the number of times each motor vehicle stops and waits at a red light before crossing the stop line; The initial value of parking waiting times is zero;

[0062] S22: Determine whether the first direction is a red light, if so, execute step S23, otherwise execute step S24;

[0063] S23: For the first direction, add 1 to the number of parking times of existing motor vehicles, and obtain the highest number of times K1 of waiting for red lights in the first direc...

Embodiment 3

[0102] On the basis of the foregoing embodiments, the step S4 also includes the following steps:

[0103] If the accumulated water height in a certain driving direction range of the intersection exceeds the set threshold, the driver will be prompted to prohibit passing in the driving direction of the intersection; if the accumulated water height in a certain driving direction range of the intersection does not exceed the set threshold, the driver will be prompted Note that there is standing water in this direction of travel at this intersection.

[0104] Such as figure 2 The intersection shown is provided with a display screen in each direction, so the display screen can be used to display corresponding prompt information to prompt the driver.

[0105] As another preferred solution, the step S4 also includes: if the water accumulation height in a certain driving direction range of the intersection exceeds the set threshold value, generating a first electromagnetic wave corre...

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Abstract

The invention provides an accumulated water monitoring-based crossing traffic signal control method and system. Via the method, red light stopping times of vehicles in different direction at a crossing can be determined; signal light control can be realized based on real time monitoring results. When accumulated water is found in a certain scope of the crossing and the accumulated water exceeds a preset threshold value, traffic in a certain direction at the crossing is directly set to be in a prohibited state via signal light control; when the accumulated water is found in a certain direction of the crossing and height of the accumulated water does not exceed the preset threshold value, a driver is reminded of the fact that the accumulated water is found in a the direction, and the driver is reminded to pay attention to safe driving. When release time in a certain direction of the crossing comes, that vehicles at the crossing are timely cleared can be ensured after time duration in which all signal lights are red is controlled. Via the method and system disclosed in a technical solution of the invention, that smooth travel of vehicles at a road segment having accumulated water can be ensured when safety is guaranteed, and traffic jam at the crossing caused due to the accumulated water can be prevented.

Description

technical field [0001] The invention relates to the technical field of intelligent transportation, in particular to a traffic signal control method and system at an intersection based on water accumulation monitoring. Background technique [0002] With the rapid development of the economy and the continuous expansion of the city scale, the number of motor vehicles has increased sharply. In order to ensure the safety and smoothness of the intersection, signal controllers are generally installed at intersections that meet the standards for installing signal machines to control the orderly passage of motor vehicles. [0003] Ensuring the safety and smoothness of intersections has always been the focus of attention when encountering severe weather and causing water accumulation at intersections. According to statistics in recent years, Beijing always encounters waterlogging for a few days from June to July every year. The weather caused traffic jams in the whole city. There are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/07G08G1/0967
CPCG08G1/07G08G1/0967
Inventor 姜廷顺李萌朱朝晖王军利侯文宇尹胜超
Owner 北京博研智通科技有限公司
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