WIRELESS POWER TRANSMISSION SCHEDULING

• US 20100253281A1
• Filed: 03/02/2010
• Published: 10/07/2010
• Est. Priority Date: 04/07/2009
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Li, Peng
• Granted Patent: US 8,970,180 B2
• Time in Patent Office: Days
• US Class Current: 320/108
• CPC Class Codes: H02J 2310/22 The load being a portable electronic device
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/40 using two or more transmitting or receiving devices H02J50/50 takes precedence
• CPC Class Codes: H02J 50/80 involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
• CPC Class Codes: H02J 50/90 involving detection or optimisation of position, e.g. alignment
• CPC Class Codes: H02J 7/0013 acting upon several batteries simultaneously or sequentially H02J7/1423 takes precedence
• CPC Class Codes: H04B 5/26 using coils
• CPC Class Codes: H04B 5/79 for data transfer in combination with power transfer

Abstract

Exemplary embodiments are directed to wireless power transmission scheduling. A method may include scheduling for transmission of wireless power to one or more chargeable devices of the plurality of chargeable devices positioned within a charging region of a wireless charger based on at least one attribute associated with at least one of the wireless charger and at least one chargeable device of the plurality of chargeable devices.

Claims

1. A wireless charger, comprising:

a scheduling application to determine a charging schedule based on at least one attribute associated with at least one of the wireless charger and at least one chargeable device of a plurality of chargeable devices positioned within an associated charging region; and

a transmitter to convey wireless power to one or more chargeable devices of the plurality of chargeable devices according to the charging schedule.

2. The wireless charger of claim 1, wherein the at least one attribute comprises at least one of one or more static attributes and one or more dynamic attributes associated with the at least one chargeable device of the plurality of chargeable devices.

3. The wireless charger of claim 2, wherein the at least one attribute comprises one or more static attributes identifying at least one of a type of the at least one chargeable device, a model of the at least one chargeable device, and a user of the at least one chargeable device, a type of a battery of the at least one chargeable device, a model of the battery, a charging capacity of the battery, and a charging rate function of the battery.

4. The wireless charger of claim 2, wherein the at least one attribute comprises one or more dynamic attributes identifying at least one of a state of charge of a battery of the at least one chargeable device, a temperature of the battery, and an age of the battery.

5. The wireless charger of claim 1, wherein the at least one attribute comprises at least one environmental attribute identifying at least one of a number of chargeable devices positioned within a charging region of the wireless charger and an interference pattern between two or more chargeable devices positioned within the charging region of the wireless charger.

6. The wireless charger of claim 1, further comprising a database for storing one or more attributes associated with at least one of the wireless charger and at least one chargeable device of the plurality of chargeable devices.

7. The wireless charger of claim 1, wherein the scheduling application further retrieves one or more attributes associated with at least one chargeable device of the plurality of chargeable devices from a remote database.

8. The wireless charger of claim 1, wherein the scheduling application further derives one or more attributes associated with at least one chargeable device of the plurality of chargeable devices from one or more other attributes associated with the at least one chargeable device of the plurality of chargeable devices.

9. The wireless charger of claim 1, wherein the scheduling application further receives one or more dynamic attributes from a chargeable device and updates the schedule in response thereto while wirelessly transmitting power to the chargeable device.

10. The wireless charger of claim 1, wherein the scheduling application at least one of determines an order in which to charge the one or more chargeable devices and determines a charging time duration for each chargeable device of the one or more chargeable devices according to a weighted factor assigned to each chargeable device of the one or more chargeable devices.

11. The wireless charger of claim 1, wherein the scheduling application further determines an order in which to charge the one or more chargeable devices according to a priority level assigned to each chargeable device of the one or more chargeable devices.

12. A method comprising:

scheduling transmission of wireless power to one or more chargeable devices of a plurality of chargeable devices positioned within a charging region of a wireless charger based on at least one attribute associated with at least one of the wireless charger and at least one chargeable device of the plurality of chargeable devices.

13. The method of claim 12, the scheduling further comprising:

scheduling for transmission of wireless power to one or more chargeable devices of the plurality of chargeable devices based one at least one static attribute identifying at least one of a type of the at least one chargeable device, a model of the at least one chargeable device, a user of the at least one chargeable device, a type of a battery of the at least one chargeable device, a model of the battery, a charging capacity of the battery, and a charging rate function of the battery.

14. The method of claim 12, the scheduling further comprising:

scheduling for transmission of wireless power to one or more chargeable devices of the plurality of chargeable devices based one at least one dynamic attribute identifying at least one of a state of charge of a battery of the at least one chargeable device, a temperature of the battery, and an age of the battery.

15. The method of claim 12, the scheduling further comprising:

scheduling for transmission of wireless power to one or more chargeable devices of the plurality of chargeable devices based on at least one environmental attribute identifying at least one of a number of chargeable devices positioned within a charging region of the wireless charger and an interference pattern between one or more chargeable devices positioned within the charging region of the wireless charger.

16. The method of claim 12, the scheduling further comprising:

scheduling for transmission of wireless power to one or more chargeable devices of the plurality of chargeable devices based one at least one configurable attribute identifying at least one of a user priority level associated with the at least one chargeable device and a device priority level associated with the at least one chargeable device.

17. The method of claim 12, further comprising:

retrieving one or more attributes associated with the at least one chargeable device from the at least one chargeable device.

18. The method of claim 12, further comprising:

determining at least one environmental attribute associated with at least one of the wireless charger and at least one or more chargeable devices of the plurality of chargeable devices positioned within the charging region of a wireless charger.

19. The method of claim 12, further comprising:

deriving at least one attribute associated with a chargeable device from another known attribute associated with the chargeable device.

20. The method of claim 12, further comprising:

wirelessly transmitting power according to a schedule for transmission of wireless power to the one or more chargeable devices of the plurality of chargeable devices.

21. The method of claim 12, further comprising:

receiving at least one dynamic attribute associated with a chargeable device of the plurality of chargeable devices at the wireless charger while transmitting power to the chargeable device.

22. The method of claim 21, further comprising:

updating a schedule for transmission of wireless power to the one or more chargeable devices of the plurality of chargeable devices upon receiving the at least one dynamic attribute.

23. The method of claim 12, the scheduling further comprising:

assigning a weighted factor to each chargeable device of the one or more chargeable devices; and

determining an order in which to charge the one or more chargeable devices according to the weighted factor assigned to each chargeable device.

24. The method of claim 12, the scheduling further comprising:

assigning a priority level to each chargeable device of the one or more chargeable devices; and

determining an order in which to charge the one or more chargeable devices according to the priority level assigned to each chargeable device.

25. A wireless charger comprising:

means for storing one or more attributes associated with at least one of the wireless charger and at least one chargeable device of a plurality of chargeable devices positioned within a charging region of a wireless charger; and

means for scheduling transmission of wireless power to one or more chargeable device of the plurality of chargeable devices based on at least one attribute of the one or more attributes.

26. A method, comprising:

determining one or more desired charging parameters for a chargeable device according to one or more attributes associated therewith; and

transmitting a charging request from the chargeable device to a wireless charger requesting a charge in accordance with the one or more desired charging parameters.

27. A chargeable device, comprising:

a processor to determine one or more desired charging parameters according to one or more attributes associated therewith; and

a transmitter to transmit a charging request to a wireless charger requesting a charge in accordance with the one or more desired charging parameters.

28. The chargeable device of claim 27, wherein the one or more desired charging parameters comprises at least one of a rate of charge, a charging duration, and a maximum rate or charge.

29. The chargeable device of claim 28, wherein the chargeable device further retrieves one or more attributes related to an associated battery from a remote database.

30. A computer-readable media storing instructions that when executed by a processor cause the processor to perform instructions, the instructions comprising scheduling for transmission of wireless power to one or more chargeable devices of a plurality of chargeable devices based on at least one attribute associated with at least one of a wireless charger and at least one chargeable device of the plurality of chargeable devices.