The invention discloses a traffic signal lamp green light duration determination device, method and system, and relates to the field of traffic information perception and control. The method comprisesthe following steps: calculating to obtain the maximum number of detained vehicles of a lane group by utilizing the obtained number of driving-in vehicles and the obtained number of driving-out vehicles; calculating a saturated headway by utilizing the obtained time interval; acquiring speed and position information of the vehicle of the vehicle-mounted unit; comparing to obtain a key traffic flow; and calculating the green light duration by using the key traffic flow, the preset starting loss time and the saturated headway. The state information of all vehicles in each lane of the intersection is obtained in real time by using the geomagnetic vehicle detectors arranged in each lane of the intersection and the vehicle-mounted units arranged on the vehicles; and the key traffic flow of thelane is determined according to the state information, and the green light duration is calculated by using the key traffic flow, the preset starting loss time and the saturated headway so that the problem of low vehicle passing efficiency caused by unreasonable intersection signal lamp timing can be effectively alleviated.
本发明公开一种交通信号灯绿灯时长确定装置、方法及系统,涉及交通信息感知及控制领域。该方法包括:利用获取的驶入车辆数和驶出车辆数计算得到车道组的最大滞留车辆数;利用获取的时间间隔计算饱和车头时距;获取车载单元的车辆的速度和位置信息;比较得到关键车流量;利用关键车流量、预设启动损失时间和饱和车头时距计算得到绿灯时长。本发明利用安装在交叉口各车道的地磁车辆检测器和安装在车辆上的车载单元实时获取交叉口每个车道所有车辆的状态信息,根据状态信息确定车道的关键车流量,利用关键车流量、预设启动损失时间和饱和车头时距计算绿灯时长,可以有效缓解交叉口信号灯配时不合理带来的车辆通行效率低问题。
Traffic signal lamp green light duration determination device, method and system
一种交通信号灯绿灯时长确定装置、方法及系统
2020-06-05
Patent
Elektronische Ressource
Chinesisch
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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