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1. 发明授权

US06781523B2 Road traffic monitoring system 有权
标题翻译：道路交通监控系统
公开(公告)号：US06781523B2
公开(公告)日：2004-08-24
申请号：US10108469
申请日：2002-03-29
申请人： Toshiaki Matsui , Harunobu Yuzawa , Akira Kobayashi
发明人： Toshiaki Matsui , Harunobu Yuzawa , Akira Kobayashi
IPC分类号： G08G107
CPC分类号： G07B15/063 , G08G1/0104 , G08G1/017
摘要： Roadside wireless devices are installed at roadside positions corresponding to the traffic lanes entering an intersection. Roadside wireless devices are also installed at roadside positions corresponding to the traffic lanes exiting an intersection. The roadside wireless devices on the entrance side receive an identification number from vehicle-mounted wireless ID devices of vehicles entering the intersection and transmit them to a roadside traffic monitoring device. Thereafter, the roadside wireless devices on the exit side receive an identification number from the vehicle-mounted wireless ID devices of vehicles exiting the intersection and transmit them to the roadside traffic monitoring device. From the identification numbers received, the roadside traffic monitoring device is able to determine the entrance from which a vehicle judged to be the same one had entered and the exit from which it exited, along with the type of vehicle. Short-term and long-term statistical data on the flow of vehicles and the situation of road usage can be acquired efficiently.
摘要翻译：路边无线设备安装在对应于进入交叉路口的交通车道的路侧位置。路边无线设备也安装在对应于离开交叉口的交通车道的路边位置。入口侧的路边无线设备从进入交叉路口的车辆的车载无线ID设备接收识别号，并将其发送到路侧交通监控设备。此后，出口侧的路侧无线装置从离开交叉路口的车辆的车载无线ID装置接收识别号码，并将其发送到路侧交通监控装置。根据接收到的识别号码，路边交通监控装置能够根据车辆的类型来确定被判定为相同车辆的车辆的入口和出口的出口。可以有效获取关于车辆流量和道路使用情况的短期和长期统计数据。

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