Method and apparatus for a body-worn electronic device to dynamically select a power source in a wireless system

• US 9,729,015 B2
• Filed: 05/29/2015
• Issued: 08/08/2017
• Est. Priority Date: 05/29/2015
• Status: Active Grant

• Current Assignee: Motorola Solutions, Inc.
• Original Assignee: Motorola Solutions, Inc.
• Inventors: Desai, Dipti V., Herrmann, John E.
• Primary Examiner(s): Deberadinis, Robert
• Application Number:
  US14/725,576
• Publication Number:
  US 20160352156A1
• Time in Patent Office: 802 Days
• Field of Search: 307104
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/80 involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices

Abstract

Body-worn wireless electronic devices may be powered by one or more wireless power sources. These wireless power sources may comprise body-worn wireless power sources and non body-worn wireless power sources. The sources are detected by the electronic device and are either prioritized based on being body-worn or non body-worn. The selection of sources for powering the electronic device(s) may alternatively be made based on predetermined parameters associated with the power sources. Optimal power transfer is thus obtained for the electronic devices while being worn.

Claims

1. A wireless power system, comprising:

a plurality of wireless power sources; and

a body-worn wireless electronic device for detecting the plurality of wireless power sources and selecting a wireless power source based on predetermined wireless power source parameters.

2. The wireless power system of claim 1, wherein the plurality of wireless power sources comprise a plurality of body-worn wireless power sources.

3. The wireless power system of claim 2, wherein the predetermined wireless power source parameters for the plurality of body-worn wireless power sources comprises one or more of:

power rating, coil size, remaining power, and position of each body-worn wireless power source relative to the body-worn wireless electronic device.

4. The wireless power system of claim 2, wherein each of the plurality of body-worn wireless power sources each comprise:

a wireless power receiver, a rechargeable energy source, a wireless power transmitter, and a communication module.

5. The wireless power system of claim 2, wherein the plurality of body-worn wireless power sources comprises one or more of:

a portable two-way radio, a cell phone, or a camera.

6. The wireless power system of claim 2, wherein the plurality of wireless power sources further comprises:

a non body-worn wireless power source.

7. The wireless power system of claim 6, wherein the non body-worn wireless power source is prioritized over the plurality of body-worn wireless power sources for powering the body-worn wireless electronic device.

8. The wireless power system of claim 6, wherein the non body-worn wireless power source is powered via a vehicular power source or an AC power source.

9. The wireless power system of claim 6, wherein the predetermined wireless power source parameters for the non body-worn wireless power source comprises one or more of:

efficiency of power transfer, power ratings, source coil size, position of non body-worn wireless power source relative the body-worn wireless electronic device.

10. A wireless power system, comprising:

a body-worn wireless electronic device;

at least one body-worn wireless power source;

at least one non body-worn wireless power source; and

the body-worn wireless electronic device selecting a wireless power source based on predetermined parameters of the at least one body-worn wireless power source and the at least one non body-worn wireless power source.

11. The wireless power system of claim 10, wherein the at least one body-worn wireless power source comprises:

a wireless power receiver, a rechargeable energy source, a wireless power transmitter, and a communication module.

12. The wireless power system of claim 10, wherein the at least one body-worn wireless power source comprises a power source of a portable two-way radio.

13. The wireless power system of claim 10, wherein the at least one non body-worn wireless power source is powered via a vehicular power source or an AC power source.

14. The wireless power system of claim 10, wherein the at least one body-worn wireless power source and the at least one non body-worn wireless power source communicate with the body-worn wireless electronic device via a wireless communication link.

15. The wireless power system of claim 10, wherein:

the at least one body-worn wireless power source comprises;

a plurality of body-worn wireless power sources removably coupled to an article of clothing; and

the body-worn wireless electronic device comprises one of;

a remote speaker microphone, a sensor, a video camera, a wireless two-way radio, a remote push-to-talk (PTT) device, earpiece, smart glasses.

16. A method of for powering a body-worn wireless electronic device, comprising:

detecting, by a body-worn wireless electronic device, available power sources;

prioritizing a non body-worn wireless power source over a body-worn wireless power source; and

powering the body-worn wireless electronic device with the non body-worn wireless power source in response to the non body-worn wireless power source being detected and prioritized.

17. The method of claim 16, further comprising:

powering the body-worn wireless electronic device with a body-worn wireless power source in response to detecting only a body-worn wireless power source.

18. The method of claim 17, further comprising:

periodically checking, by the body-worn wireless electronic device, for availability of a non body-worn wireless power source; and

switching, from the body-worn wireless power source, to the non body-worn wireless power source in response to the non body-worn wireless power source coming within a power transfer range of the body-worn wireless electronic device.

19. The method of claim 16, wherein detecting, by a body-worn wireless electronic device, available power sources comprises:

detecting, by the body-worn wireless electronic device, a plurality of body-worn wireless power sources;

determining predetermined parameters associated with each of the plurality of body-worn wireless power sources; and

powering the body-worn wireless electronic device with one of the plurality of body-worn wireless power sources based on at least one of the predetermined parameters.

20. The method of claim 19, wherein the predetermined parameters comprise:

power rating, coil size, remaining power, and position of each of the plurality of body-worn wireless power sources relative to the body-worn wireless electronic device.

21. A method of powering a plurality of body-worn wireless electronic devices, comprising:

detecting, by the plurality of body-worn wireless electronic devices, a plurality of body-worn wireless power sources;

determining predetermined parameters associated with each of the plurality of body-worn wireless power sources; and

dynamically selecting a body-worn wireless power source from the plurality of body-worn wireless power sources for each of the plurality of body-worn wireless electronic devices, based on at least one of the predetermined parameters; and

powering each of the plurality of body-worn wireless electronic devices with a dynamically selected body-worn wireless power source.

22. The method of claim 21, wherein dynamically selecting further comprises:

wirelessly communicating amongst the plurality of body-worn wireless electronic devices and the plurality of body-worn wireless power sources to determine optimum body-worn wireless power sources based on at least one of the predetermined parameters; and

resolving conflicts as part of the wireless communication.

23. The method of claim 21, further comprising:

repositioning one or more of the plurality of body-worn wireless power sources and plurality of body-worn wireless electronic devices; and

receiving a visual alert or audible feedback as to impact the repositioning has on powering.

24. The method of claim 21, further comprising:

detecting, by the plurality of body-worn wireless electronic devices, a non body-worn wireless power source; and

prioritizing the non body-worn wireless power source; and

switching to the non body-worn wireless power source for powering the plurality of body-worn wireless electronic devices.

25. The method of claim 24, further comprising:

powering and/or charging the plurality of body-worn wireless electronic devices with the prioritized non body-worn wireless power source.

26. A method of powering a plurality of body-worn wireless electronic devices, comprising:

detecting, by the plurality of body-worn wireless electronic devices, a plurality of wireless power sources comprising;

a plurality of body-worn wireless power sources; and

a plurality of non body-worn wireless power sources;

determining predetermined parameters associated with each of the plurality of wireless power sources;

dynamically selecting a wireless power source from the plurality of wireless power sources, based on at least one of the predetermined parameters, for each of the plurality of body-worn wireless electronic devices; and

powering each of the plurality of body-worn wireless electronic devices with a dynamically selected wireless power source.

27. The method of claim 26, wherein the predetermined parameters for the plurality of wireless power sources comprise:

for the plurality of body-worn wireless power sources, at least one of;

power rating, coil size, remaining power, and position of the plurality of body-worn wireless power sources relative to each of the plurality of body-worn wireless electronic devices; and

for the plurality of non body-worn wireless power sources, at least one of;

efficiency power transfer, power ratings, source coils size, source location.

28. The method of claim 26, wherein determining predetermined parameters associated with each of the plurality of wireless power sources further comprises:

calculating, by the plurality of body-worn wireless electronic devices, a power transfer efficiency for each of the plurality of wireless power sources; and

powering the plurality of body-worn wireless electronic devices based on maximum power transfer efficiency for each device.

29. The method of claim 26, further comprising:

providing a user notification of a dynamically selected wireless power source; and

allowing a user-override of the dynamically selected wireless power source.

30. The method of claim 26, further comprising:

positioning the plurality of wireless power sources relative and the plurality of body-worn wireless electronic devices to customize power transfer.