Wireless bridge hardware system for active RFID identification and location tracking

Patent metadata

Field	Value
Publication number	US-10117059-B2
Application number	US-201715464742-A
Country	US
Kind code	B2
Filing date	Mar 21, 2017
Priority date	Jul 25, 2014
Publication date	Oct 30, 2018
Grant date	Oct 30, 2018

Abstract

In various example embodiments, a system and method for facilitating proximity detection and location tracking using a mobile wireless bridge are provided. The system includes a beacon badge, a beacon tag, and a real-time location services (“RTLS”) server communicatively coupled to the beacon badge, such as via a wireless network or the like. The beacon tag broadcasts a beacon message receivable by the beacon badge. The beacon badge determines whether it is proximate to the beacon badge based on the signal strength of the received beacon message. The beacon badge further communicates identifying information contained with the received beacon message to the RTLS server. The RTLS server uses the identifying information to determine the proximate location of the beacon badge.

First claim

The invention claimed is:

1. A beacon badge comprising:
a motion sensor to transition a state of the beacon badge from a low power utilization state to a normal power utilization state when motion of the beacon badge is determined;
a wireless transceiver to, when activated by the motion sensor in the normal power utilization state, receive a beacon message; and
a proximity engine to manage, when activated by the motion sensor in the normal power utilization state, the beacon message, wherein the proximity engine instructs the wireless transceiver to transmit the beacon message to a real time location (RTLS) server when a received signal strength indication (RSSI) value of the beacon message satisfies a proximity threshold and to discard the beacon message when the RSSI value of the beacon message does not satisfy the proximity threshold.

2. The beacon badge of claim 1 , wherein the wireless transceiver includes a Bluetooth Low Energy transceiver.

3. The beacon badge of claim 1 , wherein the proximity engine is to append the RSSI value to the beacon message.

4. The beacon badge of claim 3 , wherein the proximity engine is to append a timestamp to the beacon message.

5. The beacon badge of claim 1 , wherein the proximity engine is to aggregate beacon messages obtained over a period of time for transmission to the RTLS server.

6. The beacon badge of claim 1 , further including a light emitting diode to indicate the state of the beacon badge.

7. A method comprising:
transitioning a state of a beacon badge from a low power utilization state to a normal power utilization state when motion of the beacon badge is determined by a motion sensor;
receiving, when activated by the motion sensor in the normal power utilization state, a beacon message at a wireless transceiver; and
managing, via a proximity engine when activated by the motion sensor in the normal power utilization state, the beacon message, wherein the proximity engine instructs the wireless transceiver to transmit the beacon message to a real time location (RTLS) server when a received signal strength indication (RSSI) value of the beacon message satisfies a proximity threshold and to discard the beacon message when the RSSI value of the beacon message does not satisfy the proximity threshold.

8. The method of claim 7 , wherein the wireless transceiver includes a Bluetooth Low Energy transceiver.

9. The method of claim 7 , wherein the beacon badge includes a light emitting diode to indicate the state of the beacon badge.

10. The method of claim 7 , further including appending the RSSI value to the beacon message.

11. The method of claim 10 , further including appending a timestamp to the beacon message.

12. The method of claim 7 , further including aggregating beacon messages obtained over a period of time for transmission to the RTLS server.

13. A machine-readable medium including instructions which, when executed, cause the processor to implement a method, the method comprising:
transitioning a state of a beacon badge from a low power utilization state to a normal power utilization state when motion of the beacon badge is determined by a motion sensor;
receiving, when activated by the motion sensor in the normal power utilization state, a beacon message at a wireless transceiver; and
managing, via a proximity engine when activated by the motion sensor in the normal power utilization state, the beacon message, wherein the proximity engine instructs the wireless transceiver to transmit the beacon message to a real time location (RTLS) server when a received signal strength indication (RSSI) value of the beacon message satisfies a proximity threshold and to discard the beacon message when the RSSI value of the beacon message does not satisfy the proximity threshold.

14. The machine-readable medium of claim 13 , wherein the wireless transceiver includes a Bluetooth Low Energy transceiver.

15. The machine-readable medium of claim 13 , wherein the beacon badge includes a light emitting diode to indicate the state of the beacon badge.

16. The machine-readable medium of claim 13 , wherein the method further includes appending the RSSI value to the beacon message.

17. The machine-readable medium of claim 16 , wherein the method further includes appending a timestamp to the beacon message.

Assignees

• Gen Electric

Inventors

• Theurer Charles
• Good Brandon
• Liu Shaopeng

Classifications

• G16Z99/00

  Subject matter not provided for in other main groups of this subclass · CPC title

• G06Q10/087

  Inventory or stock management, e.g. order filling, procurement or balancing against orders · CPC title

• H04W4/029 Primary

  Location-based management or tracking services · CPC title

• G01S5/0289

  of multiple transceivers, e.g. in ad hoc networks · CPC title

• G16H40/63

  for local operation · CPC title