Wireless charging system and wireless charging method

• US 10,447,064 B2
• Filed: 07/20/2017
• Issued: 10/15/2019
• Est. Priority Date: 06/28/2017
• Status: Expired due to Fees

• Current Assignee: Kinpo Electronics Incorporated (Cal-Comp Electronics Public Company Limited)
• Original Assignee: Kinpo Electronics Incorporated (Cal-Comp Electronics Public Company Limited)
• Inventors: Chi, Shou-Wei, Chiang, Ming-Hsun, Tung, Chi-Chang, Chen, Ting-Shuo
• Primary Examiner(s): Nguyen, Nha T
• Application Number:
  US15/654,729
• Publication Number:
  US 20190006874A1
• Time in Patent Office: 817 Days
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/90 involving detection or optimisation of position, e.g. alignment
• CPC Class Codes: H02J 7/0042 characterised by the mechanical construction
• CPC Class Codes: H04B 5/263 Multiple coils at either side
• CPC Class Codes: H04B 5/79 for data transfer in combination with power transfer

Abstract

The invention provides a wireless charging system and a wireless charging method. The method includes: sending a first control signal by a processor; moving a wireless charging apparatus to a first position near an electronic apparatus according to a first control signal by a moving platform; and wirelessly charging the electronic apparatus by the wireless charging apparatus.

Claims

1. A wireless charging system, comprising:

a placement platform, comprising a placement plane for placing an electronic apparatus, wherein the placement platform is a table;

a wireless charging apparatus;

a moving platform, wherein the entire wireless charging apparatus is disposed on the moving platform and can be moved by the moving platform;

a sensor;

a processor, coupled to the wireless charging apparatus and the moving platform and the sensor, wherein

the sensor senses the electronic apparatus and generates sensing information,

the processor sends a first control signal according to the sensing information,

the moving platform moves the wireless charging apparatus to a first position near the electronic apparatus according to the first control signal, and

the wireless charging apparatus wirelessly charges the electronic apparatus,

wherein the sensor comprises a signal strength sensing device, wherein before the operation of sending the first control signal by the processor,

the processor sends a second control signal, and

the moving platform moves the signal strength sensing device according to the second control signal, and

in the operation of moving the signal strength sensing device according to the second control signal by the moving platform,

the signal strength sensing device determines where a strength of a signal emitted by the electronic apparatus is strong, and

wherein the processor sends the first control signal according to the strength of the signal emitted by the electronic apparatus such that the moving platform moves the wireless charging apparatus toward a direction where the strength of the signal emitted by the electronic apparatus is strong.

2. The wireless charging system according to claim 1, wherein the wireless charging apparatus and the moving platform are disposed in the placement platform.

3. The wireless charging system according to claim 1, wherein before the operation of the sensor sensing the electronic apparatus and generating the sensing information,

the electronic apparatus sends charging information, and

the processor controls the sensor to sense the electronic apparatus according to the charging information.

4. The wireless charging system according to claim 1, wherein the sensor comprises an image capturing device, and in the operation of the processor sending the first control signal,

the image capturing device captures a first image having the electronic apparatus,

the processor performs object recognition according to the first image to obtain the first position, and

the processor sends the first control signal according to the first position.

5. The wireless charging system according to claim 1, wherein the sensor comprises an infrared sensing device, and in the operation of the processor sending the first control signal,

the infrared sensing device emits an infrared signal,

the infrared sensing device receives a reflection signal of the infrared signal,

the processor obtains the first position according to the infrared signal and the reflection signal, and

the processor sends the first control signal according to the first position.

6. The wireless charging system according to claim 1, wherein the sensor comprises a touch sensor, and in the operation of the processor sending the first control signal,

the touch sensor senses a touch of the first position on the placement platform,

the touch sensor sends a touch sensing signal according to the touch,

the processor obtains the first position according to the touch sensing signal, and

the processor sends the first control signal according to the first position.

7. A wireless charging method for a wireless charging system, wherein the wireless charging system comprises a placement platform, a wireless charging apparatus, a moving platform, a sensor and a processor, the placement platform comprises a placement plane for placing an electronic apparatus, and the moving platform is connected with the wireless charging apparatus, wherein the placement platform is a table and the entire wireless charging apparatus is disposed on the moving platform and can be moved by the moving platform, the method comprising:

sensing the electronic apparatus and generating sensing information by the sensor;

sending a first control signal according to the sensing information by the processor;

moving the wireless charging apparatus to a first position near the electronic apparatus according to the first control signal by the moving platform; and

wirelessly charging the electronic apparatus by the wireless charging apparatus,

wherein the sensor comprises a signal strength sensing device, wherein before the step of sending the first control signal by the processor, the method further comprising;

sending a second control signal by the processor; and

moving the signal strength sensing device according to the second control signal by the moving platform, and

in the operation of the step of moving the signal strength sensing device according to the second control signal by the moving platform,

determining where a strength of a signal emitted by the electronic apparatus is strong by the signal strength sensing device, and

wherein sending the first control signal by the processor according to the strength of the signal emitted by the electronic apparatus such that the moving platform moves the wireless charging apparatus toward a direction where the strength of the signal emitted by the electronic apparatus is strong.

8. The wireless charging method according to claim 7, wherein the wireless charging apparatus and the moving platform are disposed in the placement platform.

9. The wireless charging method according to claim 7, wherein before the step of sensing the electronic apparatus and generating the sensing information by the sensor, the method further comprises:

sending charging information by the electronic apparatus; and

controlling the sensor to sense the electronic apparatus according to the charging information by the processor.

10. The wireless charging method according to claim 7, wherein the sensor comprises an image capturing device, wherein the step of sending the first control signal by the processor comprises:

capturing a first image having the electronic apparatus by the image capturing device;

performing object recognition according to the first image to obtain the first position by the processor; and

sending the first control signal according to the first position by the processor.

11. The wireless charging method according to claim 7, wherein the sensor comprises an infrared sensing device, and the step of sending the first control signal by the processor comprises:

emitting an infrared signal by the infrared sensing device;

receiving a reflection signal of the infrared signal by the infrared sensing device;

obtaining the first position according to the infrared signal and the reflection signal by the processor; and

sending the first control signal according to the first position by the processor.

12. The wireless charging method according to claim 7, wherein the sensor comprises a touch sensor, and the step of sending the first control signal by the processor comprises:

sensing a touch of the first position on the placement platform by the touch sensor;

sending a touch sensing signal according to the touch by the touch sensor;

obtaining the first position according to the touch sensing signal by the processor; and

sending the first control signal according to the first position by the processor.