CN110266120A - A method of improving wireless charging communication reliability - Google Patents
A method of improving wireless charging communication reliability Download PDFInfo
- Publication number
- CN110266120A CN110266120A CN201910674259.7A CN201910674259A CN110266120A CN 110266120 A CN110266120 A CN 110266120A CN 201910674259 A CN201910674259 A CN 201910674259A CN 110266120 A CN110266120 A CN 110266120A
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- wireless charging
- frequency
- working frequency
- transmitting coil
- current
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- 238000004891 communication Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000008569 process Effects 0.000 claims abstract description 6
- 230000007257 malfunction Effects 0.000 claims description 4
- 238000011084 recovery Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 6
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of methods for improving wireless charging communication reliability, which comprises S1 detects electric current and voltage on transmitting coil respectively, calculates the normal operating power Pn on transmitting coil；S2, it staggers the time when wireless charging receiving terminal detects to decode, the electric current and voltage on current transmitting coil are detected by current detecting unit and voltage detection unit, calculate the current operating power Pn+1 on transmitting coil, compared with frequency Fn when working normally, needs reduced working frequency or need increased working frequencyWireless charging transmitting terminal is adjusted to Fn ± Δ F for working frequency is corresponding.The method of the present invention, when there is communication mistake, is decoded and is staggered the time during wireless charging, the changed power of transmitting terminal is calculated by detection, the working frequency of wireless charging resonance circuit is adjusted, normal communication can be timely and effectively restored to, improve in charging process disconnected fills phenomenon.
Description
Technical field
The present invention relates to wireless charging technical fields, and in particular to a method of improve wireless charging communication reliability.
Background technique
As shown in Figure 1, for wireless charging schematic diagram in the prior art, according to the standard of wireless charging Qi agreement, wireless charging
When, the working frequency on resonant capacitance and coil is 87K-205KHz, and Content of Communication then by way of ASK, is modulated to resonance
It is transmitted in network；The voltage and current of transmitting terminal sampling harmonic network carries out demodulation to modulated signal of communication
Decoding；Then according to receiving end send communication request, come to resonant network frequency and duty ratio be adjusted correspondingly, such as
After fruit receiving end load current suddenly change or resonant network are interfered, the voltage on resonant network will lead to, electric current is followed
Variation, the voltage and current that transmitting terminal samples may can malfunction, and can not demodulate correct signal, and communication is caused to malfunction；Such as
In 1.8s, communication lasts error does not restore, exits normal charging condition according to the requirement of Qi agreement, causes to fill fruit
It is electrically disconnected.
Summary of the invention
Based on the deficiencies of the prior art, it the present invention provides a kind of method for improving wireless charging communication reliability, charged
There is error situation by detecting communication abnormality in Cheng Zhong, and adjust automatically emits the working frequency of signal, adjusts the voltage of receiving end
Electric current, to re-establish correct communication connection.
The technical solution of the present invention is as follows:
A method of improving wireless charging communication reliability, which is characterized in that the described method includes:
S1 detects electric current and voltage on transmitting coil, calculates the normal operating power Pn on transmitting coil；
S2 staggers the time when wireless charging receiving terminal detects to decode, and detects the electric current and voltage on current transmitting coil, meter
The current operating power Pn+1 on transmitting coil is calculated, if Pn+1 is greater than Pn, needs to reduce transmitting frequency in wireless charging transmitting terminal
Rate needs to increase tranmitting frequency in wireless charging transmitting terminal if Pn+1 is less than Pn, compared with frequency Fn when working normally,
It needs reduced working frequency or needs increased working frequencyKHz, wireless charging transmitting terminal
Fn ± Δ F is adjusted to by working frequency is corresponding.
Further, in S2, when Fn+ Δ F is greater than maximum operation frequency Fmax, working frequency is set as Fmax.
Further, in S2, when Fn+ Δ F is less than maximum operation frequency Fmin, working frequency is set as Fmin.
Further, after wireless charging transmitting terminal adjusts working frequency, i.e., after power changes, need to set etc.
To time T, if communication does not still restore in the waiting time T of setting, decoded information is not received or received still
Error, then continue to test transmitting coil power, and change working frequency according to the power；
If communication recovery is normal, continue to charge using current working frequency, into charging normal process.
The invention has the benefit that the method for the present invention, during wireless charging, when there is communication mistake, decoding malfunctions
When, it can be timely and effectively to adjust the working frequency of wireless charging resonance circuit by the changed power that detection calculates transmitting terminal
It is restored to normal communication, improve in charging process disconnected fills phenomenon.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the prior art；
Fig. 2 is the flow chart of the method for the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Fig. 2, a kind of method for improving wireless charging communication reliability, which comprises
S1 detects emission lines by current detecting unit and voltage detection unit that wireless charging transmitting terminal is arranged in respectively
Electric current and voltage on circle calculate the normal operating power Pn on transmitting coil；
S2 staggers the time when wireless charging receiving terminal detects to decode, and is examined by current detecting unit and voltage detection unit
The electric current and voltage on current transmitting coil are surveyed, the current operating power Pn+1 on transmitting coil is calculated, if Pn+1 is greater than Pn,
It needs to reduce tranmitting frequency in wireless charging transmitting terminal, if Pn+1 is less than Pn, needs to increase transmitting in wireless charging transmitting terminal
Frequency needs reduced working frequency or needs increased working frequency compared with frequency Fn when working normallyWireless charging transmitting terminal is adjusted to Fn ± Δ F for working frequency is corresponding.
In S2, when Fn+ Δ F is greater than maximum operation frequency Fmax, working frequency is set as Fmax.
In S2, when Fn++ Δ F is less than maximum operation frequency Fmin, working frequency is set as Fmin.
After power adjustment changes, need to set waiting time T,
If communication does not still restore in the waiting time T of setting, decoded information is not received or received still
Error, then continue to test transmitting coil power, and change working frequency according to the power；
If communicating recovered normal, just continue to charge using current working frequency, into charging normal process.
The method for the improvement wireless charging communication reliability that the present embodiment proposes, it is wrong when there is communication during wireless charging
Accidentally, it decodes and staggers the time, it can to adjust the working frequency of wireless charging resonance circuit by the changed power that detection calculates transmitting terminal
To be timely and effectively restored to normal communication, improve in charging process disconnected fills phenomenon.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (4)
1. a kind of method for improving wireless charging communication reliability, which is characterized in that the described method includes:
S1 detects electric current and voltage on transmitting coil, calculates the normal operating power Pn on transmitting coil；
S2 staggers the time when wireless charging receiving terminal detects to decode, and detects the electric current and voltage on current transmitting coil, calculates hair
Current operating power Pn+1 on ray circle needs to reduce tranmitting frequency in wireless charging transmitting terminal if Pn+1 is greater than Pn, if
Pn+1 is less than Pn, then needs to increase tranmitting frequency in wireless charging transmitting terminal, compared with frequency Fn when working normally, need to drop
Low working frequency needs increased working frequencyKHz, wireless charging transmitting terminal is by work
Frequency is corresponding to be adjusted to Fn ± Δ F.
2. improving the method for wireless charging communication reliability as described in claim 1, it is characterised in that: in S2, when Fn+ Δ F is big
When maximum operation frequency Fmax, working frequency is set as Fmax.
3. improving the method for wireless charging communication reliability as described in claim 1, it is characterised in that: in S2, when Fn+ Δ F is small
When maximum operation frequency Fmin, working frequency is set as Fmin.
4. the method as described in any one of claims 1-3 for improving wireless charging communication reliability, it is characterised in that:
After wireless charging transmitting terminal adjusts working frequency, i.e., after power changes, need to set waiting time T, if
In the waiting time T of setting, communication does not still restore, and does not receive or receives decoded information and still malfunction, then continues
Transmitting coil power is detected, and working frequency is changed according to the power；
If communication recovery is normal, continue to charge using current working frequency, into charging normal process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910674259.7A CN110266120B (en) | 2019-07-25 | 2019-07-25 | Method for improving wireless charging communication reliability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910674259.7A CN110266120B (en) | 2019-07-25 | 2019-07-25 | Method for improving wireless charging communication reliability |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110266120A true CN110266120A (en) | 2019-09-20 |
| CN110266120B CN110266120B (en) | 2024-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910674259.7A Active CN110266120B (en) | 2019-07-25 | 2019-07-25 | Method for improving wireless charging communication reliability |
Country Status (1)
| Country | Link |
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| CN (1) | CN110266120B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112217296A (en) * | 2020-09-14 | 2021-01-12 | 纳恩博（天津）科技有限公司 | Wireless charging method, device, equipment and computer storage medium |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130117405A (en) * | 2012-04-17 | 2013-10-28 | 삼성전자주식회사 | Method and apparatus for wireless power transmission and apparatus for wireless power reception |
| US20140240099A1 (en) * | 2013-02-27 | 2014-08-28 | Generalplus Technology Inc. | Circuit for signal decoding in rfid or wireless power |
| CN104113098A (en) * | 2013-08-04 | 2014-10-22 | 深圳市兴龙辉科技有限公司 | Wireless charging topological structure and frequency sweep algorithm |
| CN107112808A (en) * | 2014-09-16 | 2017-08-29 | 皇家飞利浦有限公司 | Wireless induction power transmission |
| CN109217494A (en) * | 2017-07-08 | 2019-01-15 | 厦门新页科技有限公司 | A kind of solution mobile phone wireless fills disconnected system when charging |
| CN109510288A (en) * | 2018-12-18 | 2019-03-22 | 成都瑞德星无线技术有限公司 | A kind of one-to-many wireless charging system and control method of power adaptive allotment |
-
2019
- 2019-07-25 CN CN201910674259.7A patent/CN110266120B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130117405A (en) * | 2012-04-17 | 2013-10-28 | 삼성전자주식회사 | Method and apparatus for wireless power transmission and apparatus for wireless power reception |
| US20140240099A1 (en) * | 2013-02-27 | 2014-08-28 | Generalplus Technology Inc. | Circuit for signal decoding in rfid or wireless power |
| CN104113098A (en) * | 2013-08-04 | 2014-10-22 | 深圳市兴龙辉科技有限公司 | Wireless charging topological structure and frequency sweep algorithm |
| CN107112808A (en) * | 2014-09-16 | 2017-08-29 | 皇家飞利浦有限公司 | Wireless induction power transmission |
| CN109217494A (en) * | 2017-07-08 | 2019-01-15 | 厦门新页科技有限公司 | A kind of solution mobile phone wireless fills disconnected system when charging |
| CN109510288A (en) * | 2018-12-18 | 2019-03-22 | 成都瑞德星无线技术有限公司 | A kind of one-to-many wireless charging system and control method of power adaptive allotment |
Non-Patent Citations (2)
| Title |
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| 潘鑫: "Qi标准无线充电功能的手机实现", 《中国优秀硕士学位论文全文数据库》 * |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112217296A (en) * | 2020-09-14 | 2021-01-12 | 纳恩博（天津）科技有限公司 | Wireless charging method, device, equipment and computer storage medium |
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| CN110266120B (en) | 2024-03-01 |
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