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    System for monitoring and locating people and objects
    15.
    发明授权
    System for monitoring and locating people and objects 失效
    用于监控和定位人员和物体的系统

    公开(公告)号：US07050906B2

    公开(公告)日：2006-05-23

    申请号：US10865528

    申请日：2004-06-10

    申请人： Daraius Hathiram ,  Bruce Cummings ,  Nicholas Anderson ,  Ronald E. Ham ,  James Chaput

    发明人： Daraius Hathiram ,  Bruce Cummings ,  Nicholas Anderson ,  Ronald E. Ham ,  James Chaput

    IPC分类号： G01C21/00

    CPC分类号： G08B21/0202

    摘要： A method, computer program product and system for monitoring and locating an object using secure communications without relying on GPS. A monitoring device may activate a monitored unit (unit monitored by monitoring device) by transmitting a seed of an algorithm and a time synchronization to the monitored unit. The seed and time synchronization may be used in conjunction with an algorithm, e.g., frequency hopping table, stored in both the monitoring device and the monitored unit, to allow both the monitoring device and the monitored unit to communicate with one another at a uniquely synchronized time and frequency thereby making it more difficult for a third party to locate the monitored unit. An alert may be generated when the monitored unit is located beyond a predetermined zone. The monitored unit may be located by activating a directional antenna in conjunction with a digital compass on the monitoring device.

    摘要翻译： 一种使用安全通信监视和定位物体的方法，计算机程序产品和系统，而不依赖于GPS。 监视设备可以通过将算法的种子和时间同步发送到所监视的单元来激活被监控单元（由监控设备监视的单元）。 种子和时间同步可以与存储在监视设备和监视单元中的算法（例如跳频表）一起使用，以允许监视设备和被监视单元彼此独特地同步地进行通信 时间和频率，从而使得第三方更难以定位被监视的单元。 当监视的单元位于预定区域之外时，可能会生成警报。 可以通过在监视设备上与数字指南针一起激活定向天线来定位所监视的单元。