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Wireless charging receiver automatic matching method, device, transmitter and system

A wireless charging and automatic matching technology, applied in the field of communication, can solve the problems of high cost and difficulty of automatic adaptation, and achieve the effect of improving pairing efficiency, saving cost and saving pairing time.

Active Publication Date: 2022-04-12
深圳赫兹创新技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] An embodiment of the present invention provides an automatic matching method for a wireless charging receiving end, which aims to solve the problems of high cost and difficult implementation of automatic matching between any transmitting end and receiving end in existing wireless charging devices

Method used

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  • Wireless charging receiver automatic matching method, device, transmitter and system
  • Wireless charging receiver automatic matching method, device, transmitter and system
  • Wireless charging receiver automatic matching method, device, transmitter and system

Examples

Experimental program
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Effect test

Embodiment 1

[0061] refer to figure 2 , the present embodiment provides a wireless charging receiver automatic matching method, the method includes the following steps:

[0062] Step S101: adjusting the output energy;

[0063] In the embodiment of the present invention, the wireless charging receiving end automatic matching method is applied to the above-mentioned transmitting end, and the output energy is adjusted by means of phase modulation, voltage regulation or frequency modulation.

[0064] For example: the initial phase shift angle of the transmitter is θ, and the phase shift angle is adjusted to θ-2Δ 1 , adjust the output energy by adjusting the phase shift angle, increase the output energy, or adjust the phase shift angle to θ-Δ 1 To reduce the output energy (note: the transmitter reduces the phase shift angle, the output energy becomes larger). Specifically, the output energy is increased first, and the output energy cannot be directly adjusted down from the detection stage. ...

Embodiment 2

[0084] refer to Figure 3 to Figure 5 , on the basis of the first embodiment, the second embodiment of the present invention also provides an automatic matching method for a wireless charging receiver, wherein adjusting the output energy includes:

[0085] Increase the output energy during the first time period, and decrease the output energy during the second time period;

[0086] Wherein the first time period and the second time period are random arbitrary time periods after the output energy is adjusted. The purpose of choosing a random time period is to avoid time overlap with other transmitters, so as to improve pairing efficiency and accuracy.

[0087] refer to Figure 4 , in the embodiment of the present invention, the first time period is t 2 to t 3 The transmitter randomly selects a time period of 500ms~1500ms (a multiple of the communication cycle) (random is to make different transmitters different). During this period of time, the transmitter adjusts the phase...

Embodiment 3

[0124] refer to Image 6 , the third embodiment of the present invention also provides a wireless charging receiver automatic matching method, the method includes:

[0125] Step S401: Increase the output energy within the first time period;

[0126] Step S402: Obtain the first average value before adjusting the output energy, and obtain the first induced voltage returned by the receiving end within the first time period;

[0127] Step S403: judging whether the first induced voltage is greater than a first preset value;

[0128] Step S404: If yes, reduce the output energy within the second time period; otherwise, go to step S408.

[0129] Step S405: Obtain the second induced voltage sent back by the receiving end within the second time period;

[0130] Step S406: judging whether the second induced voltage is greater than a second preset value and smaller than a third preset value;

[0131] Step S407: If yes, pair with the receiving end; otherwise, go to step S408.

[0132]...

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Abstract

The present invention is applicable to the technical field of wireless charging, and provides an automatic matching method, device, transmitter and system for a wireless charging receiving end. If the changes are consistent, the transmitter will be paired with the current receiver, and if they are inconsistent, they will be pulled into the pairing blacklist. On the basis of the original radio frequency communication module, the automatic matching method of the wireless charging receiving end performs pairing through the change of the external physical quantity of the transmitting end and the receiving end. Without complicated communication protocols, the automatic matching between the receiving end and the transmitting end can be realized. On the basis of not adding any hardware, it is compatible with existing products and saves costs; in addition, it can perform pairing processing on multiple receiving ends in parallel, saving pairing time and improving pairing efficiency.

Description

technical field [0001] The invention belongs to the field of communication technology, and in particular relates to a wireless charging receiver automatic matching method, device, transmitter and system. Background technique [0002] With the development of technology, wireless charging devices are widely used. Wireless charging technology is a new type of charging technology that has emerged in recent years. It can charge electrical equipment within a certain space without the use of charging wires. A wireless charging system is generally divided into a transmitter and a receiver. Because the two parties are non-contact when working, they can only exchange data by means of wireless communication. [0003] At present, many wireless charging devices use low-cost radio frequency communication modules to achieve communication, such as 433M HZ, 2.4G HZ communication modules. The communication between the transmitting end and the receiving end is realized by controlling the ra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J50/80H02J50/10H02J50/20H02J7/00
CPCH02J50/80H02J50/10H02J50/20H02J7/00045
Inventor 佘天啸曹达平胡锦敏
Owner 深圳赫兹创新技术有限公司
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