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Road intersection traffic light control system and control method thereof

A control system and intersection technology, which is applied to the traffic light control system and its control field at road intersections, can solve problems such as pedestrian safety hazards, and achieve the effect of ensuring safety and reducing the possibility of accidents.

Active Publication Date: 2013-02-13
王晓宁
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

At this time, the acceleration of the speed of the vehicle poses a great safety hazard to the pedestrians who forcibly cross the street.

Method used

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  • Road intersection traffic light control system and control method thereof
  • Road intersection traffic light control system and control method thereof
  • Road intersection traffic light control system and control method thereof

Examples

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Embodiment Construction

[0020] The specific embodiment of the present invention is described in detail below in conjunction with accompanying drawing:

[0021] refer to figure 1 As shown, the road crossing traffic light control system of this embodiment includes sequentially connected pedestrian detectors, signal control machines, signal execution devices and signal lamps, and a control center connected to the signal control machine. Among them, the pedestrian detector is used to detect whether there is a pedestrian crossing the street that conflicts with the current phase at the end of the set initial green light time. The pedestrian detector can be a microwave detector, an infrared induction detector or an ultrasonic detector. The pedestrian detector can be as image 3 As shown, it is only installed on the main road to enhance pedestrian crossing safety on the main road, and it can also be installed as image 3 Install on both primary and secondary roads as shown. The signal control machine is u...

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Abstract

The invention discloses a road intersection traffic light control system and a control method thereof. Vehicle delay minimizing is not the only purpose, and the optimization objective is that the traffic safety of a pedestrian who crosses a road forcibly is guaranteed. Due to the fact that when an initial green light is over, the fact whether the pedestrian who is in conflict with the current phase condition crosses the road forcibly is judged, whether the duration time of the green light is prolonged is determined. When the initial green light is over, if the pedestrian who is in conflict with the current phase condition crosses the road forcibly, the duration time of the green light is prolonged, otherwise, the phase condition of the green light and a red light is changed normally. Due to the fact that ultimate prolonging time is set, not only is the safety of the pedestrian who crosses the road forcibly guaranteed, but also the delay at a road intersection is avoided. Therefore, the possibility that when the pedestrian crosses the road forcibly, accidents happen is reduced, the person oriented idea is emphasized, and the control system and the control method are particularly suitable for traffic control on a city intersection of a low-saturation city.

Description

technical field [0001] The invention relates to an urban traffic control system, in particular to a road intersection traffic light control system and a control method thereof. Background technique [0002] The existing control scheme of a single intersection is determined according to the calculation of traffic flow. The minimum vehicle delay at the intersection is the optimization goal. Although the minimum pedestrian crossing time is considered, the psychological characteristics of pedestrian crossing are not considered. When the intersection is in a low saturation state, the time headway is large, and the probability of pedestrians crossing the street increases. Especially when the green light is about to end, the phenomenon that the vehicle accelerates to pass through the intersection is obvious. At this time, the acceleration of the speed of the vehicle poses a great safety hazard to pedestrians who forcibly cross the street. Contents of the invention [0003] The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/07
Inventor 王晓宁吴志涛邓可章锡俏
Owner 王晓宁
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