Wireless real time location system (RTLS) using audible and/or visible signals
First Claim
1. A real time location system comprising:
- a plurality of tag devices, wherein each tag device has a unique identification code, each tag device transmitting a location signal when activated;
a plurality of location receivers installed in a defined area housing the plurality of tag devices, wherein at least one location receiver in range of an activated tag device receives the location signal and calculates a location of the tag device transmitting the location signal;
a signal mechanism coupled to an I/O port of each tag device, the signal mechanism providing at least one of an audible signal or visual signal when activated; and
a handheld location reader receives location data transmitted by the at least one location receiver in range of the activated tag device.
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Accused Products
Abstract
A real time location system has a plurality of tag devices. Each tag device has a unique identification code. Each tag device will transmit a location signal when activated. A plurality of location receivers are installed in a fixed location. The location receivers will receive the location signal and calculate a location of the tag device transmitting the location signal. A signal mechanism is coupled to an I/O port of each tag device. The location mechanism provides at least one of an audible signal or visual signal when activated. A location reader is provided. The location reader receives the location data transmitted by the plurality of location receivers to enable a person to locate the tag device transmitting the location signal.
15 Citations
20 Claims
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1. A real time location system comprising:
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a plurality of tag devices, wherein each tag device has a unique identification code, each tag device transmitting a location signal when activated; a plurality of location receivers installed in a defined area housing the plurality of tag devices, wherein at least one location receiver in range of an activated tag device receives the location signal and calculates a location of the tag device transmitting the location signal; a signal mechanism coupled to an I/O port of each tag device, the signal mechanism providing at least one of an audible signal or visual signal when activated; and a handheld location reader receives location data transmitted by the at least one location receiver in range of the activated tag device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A real time location system comprising:
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a plurality of tag devices, wherein each tag device has a unique identification code, each tag device transmitting a location signal when activated; a plurality of location receivers installed in a defined area housing the plurality of tag devices, wherein at least one location receiver in range of an activated tag device receives the location signal and calculates a location of the activated tag device transmitting the location signal; a signal mechanism coupled to an I/O port of each tag device, the signal mechanism providing at least one of an audible signal or visual signal when activated; a location reader which receives location data transmitted by the at least one location receiver in range of the activated tag device; an excitation unit for transmitting an activation signal to a specified tag device, wherein the excitation unit is incorporated in the location reader; and an activation unit for transmitting a signal mechanism activation signal, wherein the activation unit is incorporated in the location reader. - View Dependent Claims (13, 14, 15, 16)
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17. A method for tracking and locating tag devices comprising:
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installing a tag device on an asset to be located, the tag device having a unique identification code, the tag device transmitting a location signal when activated; installing location receivers in fixed locations in an area housing the asset; activating the tag device; receiving the location signal by the location receivers; locating a general vicinity of the activated tag device by using the location receivers; and activating a signal mechanism coupled to an I/O port of the tag device, the signal mechanism providing at least one of an audible signal or visual signal when activated. - View Dependent Claims (18, 19, 20)
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Specification