Wireless Charging Method and System, Wireless Charging Device and Wearable Device

Patent metadata

Field	Value
Publication number	US-2016190862-A1
Application number	US-201615062505-A
Country	US
Kind code	A1
Filing date	Mar 7, 2016
Priority date	Sep 5, 2013
Publication date	Jun 30, 2016
Grant date	—

Abstract

A wireless charging method and system, a wireless charging device, and a wearable device. The method includes receiving, by a charging device, electric power usage data sent by at least one wearable device, determining, by the charging device, an electric power distribution solution according to the electric power usage data, where the electric power distribution solution is used to determine a charging order and charging electric power for charging the wearable device by the charging device, and performing, by the charging device, wireless charging on the wearable device according to the electric power distribution solution where the wireless charging method disclosure may coordinate a relationship between an actual electric power requirement of a user and charging capability distribution, thereby implementing overall arrangement of electric power among multiple wearable devices and dynamic distribution of charging capabilities.

First claim

What is claimed is:

1 . A wireless charging method, comprising:
receiving, by a charging device, electric power usage data sent by at least two wearable devices; determining, by the charging device, an electric power distribution solution according to the electric power usage data, wherein the electric power distribution solution is used to determine a charging order and charging electric power for charging one or more of the at least two wearable devices; and performing, by the charging device, wireless charging on one or more of the at least two wearable devices according to the electric power distribution solution.

2 . The wireless charging method according to claim 1 , wherein determining, by the charging device, the electric power distribution solution according to the electric power usage data comprises:
obtaining, by the charging device, an electric power requirement parameter according to the electric power usage data; determining, by the charging device, the charging order according to the electric power requirement parameter; and determining, by the charging device, the charging electric power according to the electric power usage data.

3 . The wireless charging method according to claim 2 , wherein determining, by the charging device, the charging order according to the electric power requirement parameter comprises determining the electric power distribution solution for a first wearable device according to the electric power usage data of the first wearable device when the first wearable device of the at least two wearable devices in use or the first wearable device of the at least two wearable devices in a standby state, and the electric power requirement parameter of the first wearable device is not greater than a preset threshold.

4 . The wireless charging method according to claim 2 , wherein determining, by the charging device, the charging order according to the electric power requirement parameter comprises:
determining, by the charging device, a first electric power distribution solution when a first electric power requirement parameter obtained according to electric power usage data of the at least one wearable device in use is not greater than a first threshold, wherein when the wearable devices comprises at least one wearable device in use and at least one wearable device in a standby state; and determining, by the charging device, a second electric power distribution solution, wherein when the wearable devices comprises at least one wearable device in use and at least one wearable device in the standby state, and wherein when the first electric power requirement parameter is greater than the first threshold, and the second electric power requirement parameter obtained according to electric power usage data of the at least one wearable device in the standby state is not greater than a second threshold.

5 . The wireless charging method according to claim 2 , wherein determining, by the charging device, the electric power distribution solution according to the electric power usage data comprises performing, by the charging device, the following steps based on a water-filling algorithm:
extracting current electric power of two wearable devices with minimum electric power requirement parameters; determining an adjustment value for electric power distribution based on a difference between the current electric power of the two wearable devices; determining, according to the adjustment value, a step value of electric power provided for a charging; and using the step value as the electric power distribution solution, to determine charging electric power for charging a wearable device with a minimum electric power requirement parameter.

6 . The wireless charging method according to claim 1 , wherein after determining, by the charging device, the electric power distribution solution according to the electric power usage data, the method further comprises sending, by the charging device, the electric power distribution solution to one of the wearable devices, wherein a manner of the sending, by the charging device, the electric power distribution solution to the one of the at least two wearable devices comprises human body communication (HBC), wireless fidelity (WIFI), or BLUETOOTH.

7 . A wireless charging device, comprising:
a processor; and a non-transitory computer-readable storage medium coupled to the processor and storing programming instructions by the processor, wherein the programming instructions instruct the processor to:
receive electric power usage data sent by at least two wearable devices;
determine an electric power distribution solution according to the electric power usage data, wherein the electric power distribution solution is used to determine a charging order and charging electric power for charging one or more of the at least two wearable devices; and
charge the one or more of the at least two wearable devices according to the electric power distribution solution.

8 . The wireless charging device according to claim 7 , wherein the programming instructions further instruct the processor to:
obtain an electric power requirement parameter according to the electric power usage data; determine, the charging order according to the electric power requirement parameter; and determine, the charging electric power according to the electric power usage data.

9 . The wireless charging device according to claim 8 , wherein the programming instructions further instruct the processor to:
preset and store a threshold; determine whether the electric power requirement parameter is not greater than the threshold when a first wearable device of the at least two wearable devices is in use; and determine the electric power distribution solution for the first wearable device according to the electric power usage data of the first wearable device when the electric power requirement parameter is not greater than the threshold.

10 . The wireless charging device according to claim 8 , wherein when the at least two wearable devices comprise at least one wearable device in use and at least one wearable device in a standby state, the programming instructions further instruct the processor to:
preset and store a first threshold and a second threshold; calculate a first electric power requirement parameter based on electric power usage data of the at least one wearable device in use and a second electric power requirement parameter based on electric power usage data of the at least one wearable device in the standby state; determine whether the first electric power requirement parameter is not greater than the first threshold; determine a first electric power distribution solution when the first electric power requirement parameter is not greater than the first threshold; determine whether the second electric power requirement parameter is not greater than the second threshold; and determine a second electric power distribution solution when the second electric power requirement parameter is not greater than the second threshold.

11 . The wireless charging device according to claim 7 , wherein the programming instructions further instruct the processor to:
extract current electric power of two wearable devices with minimum electric power requirement parameters based on a water-filling algorithm; determine an adjustment value for electric power distribution based on a difference between the current electric power of the two wearable devices; determine, according to the adjustment value, a step value of electric power provided for a charging; and use the step value as the electric power distribution solution, to determine charging e

Assignees

• Huawei Tech Co Ltd

Inventors

• Ma Fuwei

Classifications

• H02J7/42

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

• H02J50/80

  involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices · CPC title

• H02J7/00 Primary

  Circuit arrangements for charging or discharging batteries or for supplying loads from batteries · CPC title

• H02J50/10 Primary

  using inductive coupling · CPC title

• H01M10/446

  Initial charging measures · CPC title