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    • 1. 发明申请
    • MULTILANE VEHICLE TRACKING SYSTEM
    • 多媒体车辆跟踪系统
    • WO2011156047A1
    • 2011-12-15
    • PCT/US2011/030751
    • 2011-03-31
    • FEDERAL SIGNAL CORPORATIONROESNER, Bruce, B.
    • ROESNER, Bruce, B.
    • G07B15/06
    • G07B15/063
    • A vehicle tracking system and method of tracking vehicles in multiple traffic lanes is disclosed. One system includes an RFID reader including a plurality of antenna ports. The system also includes a first antenna connected to a first antenna port of the plurality of antenna ports, the first antenna oriented toward a first lane of traffic. The system further includes a second antenna connected to the first antenna port and oriented toward a second lane of traffic. The system also includes a third antenna connected to a second antenna port of the plurality of antenna ports, the third antenna oriented toward the first lane of traffic. In some cases, the RFID reader is configured to detect the existence of a vehicle in a lane based on detection of an RFID device associated with the vehicle at two or more of the plurality of antenna ports.
    • 公开了一种在多个行车道上跟踪车辆的车辆跟踪系统和方法。 一个系统包括RFID读取器,其包括多个天线端口。 该系统还包括连接到多个天线端口中的第一天线端口的第一天线,第一天线朝向第一通信线路。 该系统还包括连接到第一天线端口并朝向第二交通通道的第二天线。 该系统还包括连接到多个天线端口中的第二天线端口的第三天线,第三天线朝向第一通信线路。 在一些情况下,RFID读取器被配置为基于在多个天线端口中的两个或更多个天线端口处的与车辆相关联的RFID设备的检测来检测车道中的车辆的存在。
    • 6. 发明申请
    • DEEP SLEEP IN AN RFID TAG
    • RFID标签中的深度睡眠
    • WO2005029389A2
    • 2005-03-31
    • PCT/US2004/030471
    • 2004-09-16
    • BELLA ID SOLUTIONS, INC.ROESNER, Bruce, B.
    • ROESNER, Bruce, B.
    • G06K
    • G06K19/0723
    • Systems and techniques to provide radio frequency identification tags including a non-responsive state, which is independent of supplied power, initiated in conjunction with a tag communications reset. In general, in one implementation, a passive radio frequency identification tag includes an antenna, a radio frequency interface coupled with the antenna, and control logic that initiates a deep sleep state in response an event, the deep sleep state including a non-responsive state that is independent of supplied power, and the control logic providing a following state entered upon conclusion of the non-responsive state, where communications initiate from the following state.
    • 用于提供射频识别标签的系统和技术包括与供应功率无关的无响应状态,与标签通信重置一起启动。 通常,在一个实现中,无源射频识别标签包括天线,与天线耦合的射频接口以及响应于事件而启动深度睡眠状态的控制逻辑,深度睡眠状态包括非响应状态 这与供电无关,并且控制逻辑提供在无响应状态结束时进入的以下状态,其中通信从以下状态开始。