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1. 发明授权

US06989741B2 Object tracking 失效
标题翻译：对象跟踪
公开(公告)号：US06989741B2
公开(公告)日：2006-01-24
申请号：US10214642
申请日：2002-08-07
申请人： Thomas Kenny , Raj Chawla , Ernest Pacsai , Carl Szasz , Robert Gilling , Thomas Marquardt
发明人： Thomas Kenny , Raj Chawla , Ernest Pacsai , Carl Szasz , Robert Gilling , Thomas Marquardt
IPC分类号： G08B26/00
CPC分类号： G08B21/0227 , G08B13/1427
摘要： Methods and systems for tracking objects. Systems of the present invention include a base station capable of transmitting and receiving signals at multiple frequencies. Each object to be tracked has attached to it what for the purpose of the present specification is referred to as an electronic tag (“E-Tag”). Each E-Tag can transmit signals that can be received and interpreted by the base station and each E-Tag can receive and interpret signals transmitted by the base station. The transmitting (and receiving) of signals between the base station and an E-Tag allows the base station to track the E-Tag, and therefore, track the object to which the E-Tag is attached. Methods utilized to track objects in accordance with the present invention vary depending on the distance of the object from a base station (“range” of the object). The distances from the base station are divided into zones with the lowest numbered zone (that is, zone 1) being closest to the base station and the highest numbered zone being farthest away from the base station. Typically, embodiments of the present invention are adapted to track objects in four different zones. LF and HF communications can be utilized to track objects in zones 1 and 2, triangulation can be used to track objects in zone 3, and global location techniques can be utilized to track objects in zone 4. In a typical application, zone 1 covers a storage enclosure such as a desk drawer, a file cabinet, or a safe for example. Zone 2 frequently covers a room or a building, zone 3 covers up to the maximum distance for which triangulation technology can be used to track an object, and zone 4 covers the maximum distance for which global location techniques can be used to track an object.
摘要翻译：跟踪对象的方法和系统本发明的系统包括能够以多个频率发送和接收信号的基站。要跟踪的每个对象已附加到本说明书的目的被称为电子标签（“E-Tag”）。每个电子标签可以发送可由基站接收和解释的信号，并且每个电子标签可以接收和解释由基站发送的信号。基站和电子标签之间的信号的发送（和接收）允许基站跟踪电子标签，因此跟踪电子标签所附着的对象。根据本发明用于跟踪物体的方法根据物体与基站的距离（物体的“范围”）而变化。距离基站的距离被划分成最接近基站的编号最小的区域（即，区域1）的区域和距基站最远的最高编号区域。通常，本发明的实施例适于跟踪四个不同区域中的对象。 LF和HF通信可用于跟踪区域1和区域2中的对象，三角测量可用于跟踪区域3中的对象，并且全局定位技术可用于跟踪区域4中的对象。在典型的应用中，区域1覆盖诸如桌子抽屉，文件柜或例如保险箱的存储外壳。区域2经常覆盖房间或建筑物，区域3覆盖可以使用三角测量技术跟踪物体的最大距离，区域4覆盖可以使用全局定位技术来跟踪对象的最大距离。

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