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A method and device for adjusting intersection signal based on array radar

An intersection and array radar technology, which is applied in the field of signal adjustment at intersections based on array radar, can solve problems such as the backlog of vehicles queuing at intersections, the inability to accurately meet the traffic demand at intersections, road congestion, etc., and achieve the effect of improving the degree of automation

Active Publication Date: 2020-07-10
QINGDAO HISENSE TRANS TECH
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  • Claims
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Problems solved by technology

[0005] The embodiment of the present application provides an intersection signal adjustment method and device based on array radar, which solves the problem that the intersection signal timing cannot accurately meet the traffic demand in all directions at the intersection, resulting in a backlog of vehicles queuing up at the intersection and causing road congestion.

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  • A method and device for adjusting intersection signal based on array radar
  • A method and device for adjusting intersection signal based on array radar
  • A method and device for adjusting intersection signal based on array radar

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Embodiment Construction

[0065] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments . Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the embodiments of the present application.

[0066] In the embodiment of the present application, the array radar detector is arranged at the position before the stop line of the entrance road at the intersection, that is, at the upstream position of the intersection. Radar detectors also need to be installed at the exit of the intersection. According to the size of the intersection, they can be installed separately, or they can be re-used and installed in reverse...

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Abstract

The invention discloses a method and a device for adjusting intersection signals on the basis of array radar. The method includes acquiring queuing lengths, first density and second density of vehicles in first phase in intersections; adjusting green lamp durations of green lamps of the first phase according to at least one of the first density and the second density when preset queuing conditionsare met by the queuing lengths. The first density is the density of the vehicles in first detection regions of the first phase, and the second density is the density of the vehicles in second detection regions of the first phase. The method and the device have the advantage that the problems of vehicle accumulation and queuing at existing intersections and road congestion due to the fact that traffic demands of junctions in various directions cannot be met by intersection signal timing can be solved by the aid of the method and the device.

Description

technical field [0001] The invention relates to the field of traffic signal control, in particular to an array radar-based intersection signal adjustment method and device. Background technique [0002] With the development of urbanization, the phenomenon of traffic congestion is becoming more and more obvious. As an effective means to alleviate traffic congestion, intelligent transportation has been widely used, especially in the control of intersection signals, products that automatically adjust the signal time according to traffic demand The application requirements are particularly strong. [0003] The basis of traffic signal control optimization lies in high-quality data collection, and the basis of data collection lies in advanced and efficient detection equipment. Traditional detection equipment has certain disadvantages. For example, coil detection and microwave detection are detection equipment based on cross-sections. The function of measuring traffic flow density...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/08
CPCG08G1/08
Inventor 马晓龙刘兴永刘美妮李苗华冯延伟冯国臣梁红梅
Owner QINGDAO HISENSE TRANS TECH
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