METHODS AND APPARATUS FOR CROSS CONNECTION DETECTION AND MITIGATION IN WIRELESS POWER TRANSFER NETWORKS

• US 20170288471A1
• Filed: 03/31/2016
• Published: 10/05/2017
• Est. Priority Date: 03/31/2016
• Status: Active Grant

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Shirani-Mehr, Hooman, Khoshnevis, Ahmad Farbod, Lin, Xintian E., Kasturi, Sreenivas
• Granted Patent: US 10,461,586 B2
• Time in Patent Office: Days
• CPC Class Codes: H02J 50/10 using inductive coupling
• 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 7/00034 Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
• CPC Class Codes: H04L 12/10 Current supply arrangements
• CPC Class Codes: H04L 41/12 Discovery or management of network topologies

Abstract

Methods and apparatus for cross connection detection and mitigation in wireless power transfer networks are disclosed. An example method includes receiving communication data from the second PTU, the communication data being generated by the PRU, wherein the first PTU and the second PTU are capable of providing wireless power to power receiving units; determining that the communication data is intended for the first PTU based on the connected device mapping; and transmitting the communication data to the first PTU.

Claims

1. A method comprising:

receiving first data from a first power transmitting unit (PTU);

receiving second data from a second PTU, wherein the first PTU and the second PTU are capable of providing wireless power to power receiving units; and

generating a connected device mapping based on the first data and the second data.

2. The method of claim 1, further including receiving third data from the first PTU, the third data corresponding to a power receiving unit (PRU) connected to the first PTU.

3. The method of claim 2, further including determining that the PRU is cross connected by:

in response to receiving the third data from the PTU, instructing the first PTU and second PTU to run a cross connection protocol, the cross connection protocol identifying which PTU is providing power to the PRU;

when the PRU is receiving the power from the first PTU, determining that the PRU is not cross connected; and

when the PRU is not receiving the power from the first PTU, determining that the PRU is cross connected.

4. The method of claim 3, wherein, when the PRU is cross connected with the first PTU and the second PTU:

correlating the PRU with the first PTU and the second PTU; and

adding the correlation to the connected device mapping.

5. The method of claim 2, wherein the PRU receives power from the first PTU and communicates with the second PTU.

6. The method of claim 5, further including:

receiving communication data from the second PTU, the communication data being generated by the PRU;

determining that the communication data is intended for the first PTU based on the connected device mapping; and

transmitting the communication data to the first PTU.

7. The method of claim 5, further including:

receiving communication data from the first PTU, the communication data being generated by the first PTU;

determining that the communication data is intended for the PRU based on the connected device mapping; and

transmitting the communication data to the second PTU.

8. The method of claim 1, wherein:

the first data includes at least one of an identifier of the first PTU, a class of the first PTU, a power of the first PTU, a maximum power of the first PTU, a timestamp associated with power-up of the first PTU, a status of the first PTU, or a physical location of the first PTU; and

the second data includes at least one of an identifier of the second PTU, a class of the second PTU, a power of the second PTU, a maximum power of the second PTU, a timestamp associated with power-up of the second PTU, a status of the second PTU, or a physical location of the second PTU.

9. The method of claim 2, wherein the third data includes at least one of an identifier of the PRU, a device type of the PRU, a cross connection status of the PRU, a timestamp, a class of the PRU, a power of the PRU, a status of the PRU, or a location of the PRU.

10. The method of claim 6, wherein the communication data includes data related to the power.

11. An apparatus comprising:

a receiver to (A) receive first data from a first power transmitting unit (PTU) and (B) second data from a second PTU, wherein the first PTU and the second PTU are capable of providing wireless power to power receiving units; and

a topology mapping generator to generate a connected device mapping based on the first data and the second data.

12. The apparatus of claim 11, wherein the receiver is to receive third data from the first PTU, the third data corresponding to a power receiving unit (PRU) connected to the first PTU.

13. The apparatus of claim 12, wherein the topology mapping generator is to determine that the PRU is cross connected by:

in response to receiving the third data from the PTU, instructing the first PTU and second PTU to run a cross connection protocol, the cross connection protocol identifying which PTU is providing power to the PRU;

when the PRU is receiving the power from the first PTU, determining that the PRU is not cross connected; and

when the PRU is not receiving the power from the first PTU, determining that the PRU is cross connected.

14. The apparatus of claim 13, wherein the topology mapping generator is to, when the PRU is cross connected with the first PTU and the second PTU:

correlate the PRU with the first PTU and the second PTU; and

add the correlation to the connected device mapping.

15. The apparatus of claim 12, wherein the PRU receives power from the first PTU and communicates with the second PTU.

16. The apparatus of claim 15, further including a virtual connection controller and a transmitter, wherein:

the receiver is to receive communication data from the second PTU, the communication data being generated by the PTU;

the virtual connection controller is to determine that the communication data is intended for the first PTU based on the connected device mapping; and

the transmitter is to transmit the communication data to the first PTU.

17. The apparatus of claim 15, further including a virtual connection controller and a transmitter, wherein:

the receiver is to receive communication data from the first PTU, the communication data being generated by the first PTU;

the virtual connection controller is to determine that the communication data is intended for the PRU based on the connected device mapping; and

the transmitter is to transmit the communication data to the second PTU.

18. The apparatus of claim 11, wherein:

the first data includes at least one of an identifier of the first PTU, a class of the first PTU, a power of the first PTU, a maximum power of the first PTU, a timestamp associated with power-up of the first PTU, a status of the first PTU, or a physical location of the first PTU; and

the second data includes at least one of an identifier of the second PTU, a class of the second PTU, a power of the second PTU, a maximum power of the second PTU, a timestamp associated with power-up of the second PTU, a status of the second PTU, or a physical location of the second PTU.

19. A computer readable medium comprising instructions that, when executed, cause a machine to at least:

receive first data from a first power transmitting unit (PTU);

receive second data from a second PTU, wherein the first PTU and the second PTU are capable of providing wireless power to power receiving units; and

generate a connected device mapping based on the first data and the second data.

20. The computer readable medium of claim 21, wherein the instructions cause the machine to receive third data from the first PTU, the third data corresponding to a power receiving unit (PRU) connected to the first PTU.