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 which receive the location signal and calculate 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 plurality of location receivers.
1 Assignment
0 Petitions
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.
-
Citations
20 Claims
-
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 which receive the location signal and calculate 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 plurality of location receivers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. 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 which receive the location signal and calculate 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; a location reader which receives location data transmitted by the plurality of location receivers; 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 (12, 13, 14, 15)
-
-
16. A method for tracking and locating tag devices comprising:
-
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 a proximity of a well defined 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 (17, 18, 19, 20)
-
Specification