Method of managing power using wireless charging system, and apparatus and system therefor

Patent metadata

Field	Value
Publication number	US-2016359375-A1
Application number	US-201615175592-A
Country	US
Kind code	A1
Filing date	Jun 7, 2016
Priority date	Jun 8, 2015
Publication date	Dec 8, 2016
Grant date	—

Abstract

Disclosed are a method of managing power using a wireless charging system, and an apparatus and system therefor. The wireless power management method in a wireless power transmitter for supplying power to at least one user device including a wireless power receiver installed therein includes receiving first to n th state information items corresponding to the at least one user device, respectively, calculating first statistical information based on the first to n th state information items, and transmitting the first statistical information to a server connected via a network. Accordingly, an effective wireless power management method in a wireless charging system is provided.

First claim

What is claimed is:

1 . A wireless power management method in a wireless power transmitter for supplying power to at least one user device comprising a wireless power receiver installed therein, the method comprising:
receiving first to n th state information items corresponding to the at least one user device, respectively; calculating first statistical information based on the first to n th state information items; and transmitting the first statistical information to a server connected via a network.

2 . The method according to claim 1 , wherein:
the first statistical information is collected in a unit of the user device; and the information collected in a unit of the user device comprises at least one of information on power consumption per unit time, information on load charging efficiency, information on a current charge of the load, and information on estimated time of charging completion of the load.

3 . The method according to claim 2 , wherein:
the first statistical information is further collected in a unit of the wireless power transmitter; and the information collected in a unit of the wireless power transmitter comprises at least one of information on average power transmission efficiency per unit time, information on average charging efficiency of all user devices connected per unit time; information on a whole power amount output from the wireless power transmitter per unit time, and statistical information on permission and denial of a power transmission request from the user device.

4 . The method according to claim 3 , further comprising determining whether an area corresponding to the wireless power transmitter is a shadow area based on the information collected in a unit of the wireless power transmitter.

5 . The method according to claim 4 , wherein the shadow area is determined by any one of the server and the wireless power transmitter.

6 . The method according to claim 3 , further comprising determining whether the wireless power transmitter is added/removed/changed to/from/to a home network with the wireless power transmitter connected thereto based on the information collected in a unit of the wireless power transmitter.

7 . The method according to claim 3 , further comprising controlling at least one of maximum output power of the wireless power transmitter and a maximum number of connectable wireless power receivers of the wireless power transmitter based on the information collected in a unit of the wireless power transmitter.

8 . The method according to claim 1 , wherein the state information comprises at least one of information on intensity of power applied to the user device, information on intensity of power at a rear end of a rectifier of the wireless power receiver, charging state information, system error information, information on a maximum charge of a load, and information on a current charge of the load.

9 . The method according to claim 1 , wherein the wireless power transmitter transmits the power using at least one of a magnetic induction method, an electromagnetic resonance method, and a radio frequency (RF) method.

10 . The method according to claim 1 , further comprising receiving second to k th statistical information items corresponding to adjacent wireless power transmitters connected to the network,
wherein power consumption and estimated electric charges during a unit period corresponding to the network are calculated based on the first to k th statistical information items.

11 . A wireless power management method in a server connected to at least one wireless power transmitter through a home network, the method comprising:
receiving statistical information collected by each wireless power transmitter; determining a wireless power supply shadow area based on the statistical information; and transmitting a result of the determining to a predetermined customer terminal.

12 . The method according to claim 11 , wherein the statistical information comprises information collected in a unit a user device for wirelessly receiving power from the wireless power transmitter.

13 . The method according to claim 12 , wherein the information collected in a unit of the user device comprises at least one of:
a number of times that a power transmission request is received per unit time; information on power consumption per unit time; information on load charging efficiency; information on a current charge of the load; and information on estimated time of charging completion of the load.

14 . The method according to claim 13 , wherein the statistical information is calculated based on the information collected in a unit of the user device and comprises at least one of information on average power transmission efficiency per unit time, information on average charging efficiency of all user devices connected to the wireless power transmitter per unit time, information on a whole power amount output from the wireless power transmitter per unit time, and statistical information on permission and denial of a power transmission request from the user device.

15 . The method according to claim 13 , further comprising:
identifying a complexly charged user device based on the statistical information; and transmitting a result of the identifying to the customer terminal.

16 . The method according to claim 13 , further comprising controlling maximum output power of the wireless power transmitter based on the statistical information.

17 . The method according to claim 13 , further comprising calculating power consumption and estimated electric charges during a unit period corresponding to the network using the statistical information.

18 . A wireless power transmitter for wirelessly supplying power to at least one user device comprising a wireless power receiver installed therein, comprising:
a first communicator configured to receive first to n th state information items corresponding to the at least one user device, respectively; a controller configured to calculate first statistical information based on the first to n th state information items; and a second communicator configured to transmit the first statistical information to a server connected via a network.

19 . A wireless power management apparatus connected to at least one wireless power transmitter through a home network, the apparatus comprising:
a device configured to receive statistical information collected by each wireless power transmitter; a device configured to determine a wireless power supply shadow area based on the statistical information; and a device configured to transmit a result of the determining to a predetermined customer terminal.

20 . A wireless power management system comprising:
first to n th wireless power receivers configured to wirelessly receive power; first to k th wireless power transmitters configure to supply the power to the first to n th wireless power receivers and to receive state information from the first to n th wireless power receivers to generate statistical information; and a server configured to determine a wireless power supply shadow area based on the statistical information received from the first to k th wireless power transmitters.

Assignees

• Lg Innotek Co Ltd

Inventors

• Lee Jae Kyu
• Kwon Yong Il

Classifications

• H02J7/825

  Detection of fully charged condition · CPC title

• H02J7/64

  against overvoltage · CPC title

• H02J7/62

  against overcurrent · CPC title

• H02J7/42

  with electronic devices having internal batteries, e.g. mobile phones · CPC title

• H02J7/96

  in response to battery voltage · CPC title