Vehicle tracking system using smart-phone as active transponder

    公开(公告)号:US12069552B2

    公开(公告)日:2024-08-20

    申请号:US17734425

    申请日:2022-05-02

    CPC classification number: H04W4/80 G07B15/063 H04W4/44

    Abstract: A system is described for tracking vehicle position using a smart phone or similar device as an active transponder that communicates with roadside equipment. The system may uses existing RF transceivers on the smart-phone, such as Bluetooth® LE or WiFi to periodically transmit an identifying message. Road-based equipment detects and locates the smart phone. In a further aspect, the smart phone is alerted by roadside beacons and responds with identification information. Transaction processing may be performed either on the smart phone or by roadside or back office equipment. The system may be used for automated roadway tolling and monitoring and also for access control. A coded card may be scanned by the smart card to enter identification for access control.

    Vehicle tracking system using smart-phone as active transponder

    公开(公告)号:US11039284B1

    公开(公告)日:2021-06-15

    申请号:US15058951

    申请日:2016-03-02

    Abstract: A system for tracking vehicle position using a smart phone in the vehicle as an active transponder, which is detected by roadside equipment is disclosed. In an embodiment, the system uses existing RF transceivers on the smart-phone, such as Bluetooth LE or WiFi to periodically transmit an identifying message. Road-based equipment detects and locates the smart phone. In a further embodiment, the smart phone is alerted by roadside beacons and only then responds with its identification information. Processing can be performed either on the smart phone or by roadside or central office equipment as is the case in prior art active or passive transponder-based tolling systems. Vehicle location detection can be enhanced through the use of directional antenna matrices such as a Butler matrix. The system can be used for automated roadway tolling and monitoring.

    Vehicle tracking system using smart-phone as active transponder

    公开(公告)号:US10134210B1

    公开(公告)日:2018-11-20

    申请号:US15597778

    申请日:2017-05-17

    Abstract: A system is described for tracking vehicle position using a smart phone or similar device as an active transponder that communicates with roadside equipment. The system may uses existing RF transceivers on the smart-phone, such as Bluetooth® LE or WiFi to periodically transmit an identifying message. Road-based equipment detects and locates the smart phone. In a further aspect, the smart phone is alerted by roadside beacons and responds with identification information. Transaction processing may be performed either on the smart phone or by roadside or back office equipment. The system may be used for automated roadway tolling and monitoring and also for access control. A coded card may be scanned by the smart card to enter identification for access control.

    Multi-protocol or multi command RFID system
    8.
    发明授权
    Multi-protocol or multi command RFID system 有权
    多协议或多指令RFID系统

    公开(公告)号:US09135480B2

    公开(公告)日:2015-09-15

    申请号:US11764005

    申请日:2007-06-15

    Abstract: A multi-protocol RFID interrogating system employs a synchronization technique (step-lock) for a backscatter RFID system that allows simultaneous operation of closely spaced interrogators. The multi-protocol RFID interrogating system can communicate with backscatter transponders having different output protocols and with active transponders including: Title 21 compliant RFID backscatter transponders; IT2000 RFID backscatter transponders that provide an extended mode capability beyond Title 21; EGO™ RFID backscatter transponders, SEGO™ RFID backscatter transponders; ATA, ISO, ANSI AAR compliant RFID backscatter transponders; and IAG compliant active technology transponders. The system implements a step-lock operation, whereby adjacent interrogators arc synchronized to ensure that all downlinks operate within the same time frame and all uplinks operate within the same time frame, to eliminate downlink on uplink interference.

    Abstract translation: 多协议RFID询问系统对反向散射RFID系统采用同步技术(步进锁定),允许紧密间隔的询问器同时操作。 多协议RFID询问系统可以与具有不同输出协议的反向散射转发器和主动应答器进行通信,包括:标题21兼容RFID后向散射转发器; 提供超越标题21的扩展模式功能的IT2000 RFID后向散射转发器; EGO™RFID反向散射转发器,SEGO™RFID反向散射转发器; ATA,ISO,ANSI AAR兼容RFID后向散射转发器; 和IAG兼容的主动技术转发器。 该系统实现了步进锁定操作,由此相邻询问器同步,以确保所有下行链路在同一时间帧内运行,并且所有上行链路在同一时间帧内运行,以消除上行链路干扰的下行链路。

    System and method for automated HOV lane toll collection
    10.
    发明授权
    System and method for automated HOV lane toll collection 有权
    自动HOV车道收费系统和方法

    公开(公告)号:US08770472B2

    公开(公告)日:2014-07-08

    申请号:US13793551

    申请日:2013-03-11

    CPC classification number: G06K19/0723 G06K19/0719 G07B15/063

    Abstract: An RFID tag is disclosed for use in roadway tolling systems having specially designated lanes for high occupancy vehicles, wherein more favorable toll rates are allotted to vehicles with more than one occupant. In an embodiment, the tag has a selection switch for connecting one of a plurality of ASICs to an antenna. Each ASIC is programmed to transmit a different message, wherein the message conveys information regarding the occupancy level of the vehicle. There is also information in the ASICs that is common to them for the tag.

    Abstract translation: 公开了一种用于具有用于高占用车辆的专门指定车道的道路收费系统的RFID标签,其中更有利的收费率被分配给具有多于一个乘客的车辆。 在一个实施例中,标签具有用于将多个ASIC中的一个连接到天线的选择开关。 每个ASIC被编程为发送不同的消息,其中消息传达关于车辆的占用水平的信息。 ASIC中也有与标签通用的信息。

Patent Agency Ranking