Multiple broadcasting tag and monitoring systems including the same
First Claim
1. A transmitting tag for use with a monitoring system, the tag is provided with an identification code, the tag comprising:
- a housing an electronic circuitry supported within said housing, the electronic circuitry including a processing unit and a transmitter for broadcasting data carrying signals to a location remote from the tag;
the processing unit includes a data processor for receiving and processing data and a memory for storing the tag identification code and a program for operating the tag;
wherein the transmitter periodically broadcast at least two data carrying signals of different predetermined strengths at substantially predetermined time intervals.
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Accused Products
Abstract
The present invention provides an improved transmitting tag for enhancing the tracking and locating capability of a monitoring system and for allowing control over accessibility to particular zones and/or equipment within a restricted area. The tag is provided with a transmitter of multiple broadcasting signals for allowing periodical broadcasting of at least two signals of different strength at different time intervals and preferably of different information content. The signals carry the tag identification code and a strength identification code. The weak signals emitted by the tag can be further exploited for allowing or denying accessibility to local operating systems.
61 Citations
26 Claims
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1. A transmitting tag for use with a monitoring system, the tag is provided with an identification code, the tag comprising:
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a housing an electronic circuitry supported within said housing, the electronic circuitry including a processing unit and a transmitter for broadcasting data carrying signals to a location remote from the tag;
the processing unit includes a data processor for receiving and processing data and a memory for storing the tag identification code and a program for operating the tag;
wherein the transmitter periodically broadcast at least two data carrying signals of different predetermined strengths at substantially predetermined time intervals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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- 16. An electronic monitoring system comprising at least one transmitting tag having a tag identification code attached to a monitored subject and at least one receiving unit tuned for receiving signals transmitted from said tag, the tag periodically broadcast at least two data carrying signals of different strength at substantially predetermined time intervals, at least one of said at least two signals carries a signal strength identification code.
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20. A method for enhancing the tracking and locating capabilities of an electronic monitoring system, the monitoring system comprises at least one receiving unit and at least one transmitting tag having a tag identification code, the method comprises:
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providing the tag with multiple strength broadcasting capability;
programming the tag to periodically broadcasting at least two data carrying signals of different strength at substantially predetermined time intervals, said data includes the tag identification tag, wherein at least one of said at least two signals carries a signal strength identification code. - View Dependent Claims (21, 22, 23, 24, 25, 26)
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Specification