CN103441583A - Direction self-adaption wireless charging technology based on beam forming - Google Patents
Direction self-adaption wireless charging technology based on beam forming Download PDFInfo
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- CN103441583A CN103441583A CN2013103917272A CN201310391727A CN103441583A CN 103441583 A CN103441583 A CN 103441583A CN 2013103917272 A CN2013103917272 A CN 2013103917272A CN 201310391727 A CN201310391727 A CN 201310391727A CN 103441583 A CN103441583 A CN 103441583A
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Abstract
The invention relates to a wireless charging method, in particular to a direction self-adaption wireless charging technology based on beam forming. The direction self-adaption wireless charging technology based on beam forming comprises the following steps that firstly, wireless connection is established between a charging device and a charged device in a wireless communication mode, the charged device is sensed by the charging device, and the pairing process is completed after the charging device and the charged device obtain information such as the direction and the distance; secondly, the charging device executes compression of an electromagnetic wave beam in the specific direction according to the information such as the direction determined in the last step; thirdly, the charged device senses the wave beam and executes compression of a wave beam of the charged device according to the wave beam of the charging device, and the charged device and the charging device conduct energy transfer according to the resonance frequency determined in the first step; fourthly, when a charging task is completed or is stopped by people, beam forming is completed, and the beam forming function is stopped. Compared with the electromagnetic induction type wireless charging technology, the direction self-adaption wireless charging technology based on beam forming has the advantage of increasing the work distance of the wave beams. Compared with the resonance type wireless charging technology, the direction self-adaption wireless charging technology based on beam forming has the advantage of being capable of effectively improving the efficiency of wireless transmission.
Description
Technical field
The present invention relates to a kind of wireless charging method.
Background technology
At present the technology of wireless charging has three kinds: induction, resonant mode and radio wave formula etc.
The induction transformer that is similar to, respectively have a coil at the sending and receiving end, and the transmitting terminal coil connects wired power generation electromagnetic signal, and receiving coil inductive electromagnetic signal generation current is to power consumption equipment.
Resonant mode is comprised of energy dispensing device and energy receiving system.Adjust to same frequency when two devices, resonate on a specific frequency, now exchange energy each other.Resonant mode is different from way of electromagnetic induction, without the position between coil is fitted like a glove.Compare way of electromagnetic induction, the advantage that the method has most is to extend transmission distance.But also have, coil is oversize, the shortcoming of the easy off resonance of frequency.
The radio wave mode mainly is comprised of microwave launcher and microwave receiving device.Receiving circuit can capture the radio wave energy of rebounding from wall, when making adjustment with load, keeps galvanic current to press.
Current wireless charging mostly is electromagnetism perception formula, and resonant mode and radio wave formula are still in theoretical research stage.The electromagnetic induction operating distance is very short, and even distance is nearer generally to only have several centimetres, but efficiency is higher; And the resonant mode operating distance can reach several meters, but efficiency is low.
Moreover, charging device and be recharged real-time exchange positional information between equipment (being angle and operating distance etc.).When one or both occurrence positions changes, charging device and be recharged between equipment and carry out necessary adjustment, change the deflection of beam forming etc., makes can carry out incessantly energy exchange between the two.
Summary of the invention
1. technical problem to be solved
Existing wireless charging technology has the following disadvantages: a. work is high from short efficiency, and the efficiency of distance is low; B. when charging device be recharged 1 location when change of equipment, charging device and be recharged between equipment and carry out necessary position adjustment, just can proceed wireless charging.
2. technical scheme
In order to overcome the above problems, the invention provides a kind of wireless charging technology based on beam forming technique and direction-adaptive, comprise the following steps: the first step: charging device and be recharged between equipment and set up wireless connections by communication, charging device completes being recharged the perception of equipment, until both sides know need to towards direction and the information such as distance after, the pairing process finishes;
Second step: the information such as direction that this charging device is definite according to previous step, carry out the electromagnetic wave beam compression towards specific direction;
The 3rd step: be recharged this wave beam of device-aware, and also according to this wave beam, carry out the compression of one's own side's wave beam, both sides carry out Energy Transfer according to resonance frequency definite in the first step;
The 4th step: after the charging task completes or, after artificial the termination, beam forming is also finished the work and closed this function.
Reach better effect, after the 4th step, charging device is reworked by communication, finds a next equipment that needs charging.
Communication in the first step and the 4th step is Wi-Fi or bluetooth.
Charging device and be recharged the working method that all adopts omnidirectional antenna between equipment in the first step.
In second step, charging device changes omnidirectional's wireless transmission for to launch towards certain orientation.
3. beneficial effect
The present invention proposes a kind of wireless charging technology based on beam forming technique and direction-adaptive and extend its operating distance on certain orientation, and improves charge efficiency.Simultaneously, it can the conversion work mode be charging device that this technology also makes the equipment of being recharged, for other equipment that need charge carry out wireless charging.When charging device be recharged 1 location when change of equipment, charging device and be recharged between equipment and do not carry out the position adjustment.
The accompanying drawing explanation
Fig. 1 charging device and be recharged between equipment by communications such as bluetooth or Wi-Fi and matched schematic diagram.
Fig. 2 charging device is carried out the beam forming schematic diagram.
Fig. 3 is recharged equipment and carries out the beam forming schematic diagram.
Fig. 4 is recharged equipment and is subjected to displacement, and both sides change beam forming, keeps uninterrupted charging schematic diagram.
1. charging device; 2. be recharged equipment; 3. charging device keeps beam forming; 4. the equipment that is recharged keeps beam forming; 5., after being recharged equipment generation self displacement, adaptively changing beam forming mode, make it and charging device keeps pairing and uninterrupted the charging; 6. after the equipment of being recharged is subjected to displacement, charging device adaptively changing beam forming mode, keep pairing and uninterrupted charging with the equipment that is recharged
Embodiment
below by embodiment, the present invention is described in detail.
Its working method is as follows,
The first step: charging device and be recharged the working method that all adopts omnidirectional antenna between equipment.Set up wireless connections by communication modes such as bluetooth or Wi-Fi between the two, determine resonance frequency, charging device completes being recharged the perception of equipment simultaneously, comprise according to signal strength signal intensity judgement direction and general distance, until both sides know need to towards direction and the information such as distance after, the pairing process finishes.
Second step: the information such as direction that this charging device is definite according to previous step, carry out the electromagnetic wave beam compression towards specific direction.Now, charging device changes omnidirectional's wireless transmission for to launch towards certain orientation.
The 3rd step: and be recharged this wave beam of device-aware, and also according to this wave beam, carry out the compression of one's own side's wave beam.Both sides carry out Energy Transfer according to resonance frequency definite in the first step.
In this process, the situation that the equipment that is recharged is moved may appear.Move the position that charging device can detecting real-time be recharged equipment, and make corresponding direction adjustment.Simultaneously, be recharged equipment and also can suitably adjust oneself beam angle and amplitude according to the beam varies of charging device.
The 4th step: after the charging task completes, both sides close the beam forming function.The communication such as bluetooth or Wi-Fi is reworked, and finds a next equipment that needs charging.
It should be noted that:
A. in the first step, charging device may be found two or more equipment that is recharged, and according to certain priority, is judged, selects one to be charged.The dump energy number that the method that priority is selected can be based on being recharged equipment, the distance between itself and charging device are far and near, the charging interval length of estimating etc., or also can artificially independently define.
B. as in whole charging process, occur artificially to stop, automatic stop charges.
C. after certain is recharged equipment and completes charging, charging device is found a next equipment that needs charging.
The present invention is based on beam forming technique and improve the wireless charging technology.
Beam forming technique, in brief, be about to wave beam and carry out compression with good conditionsi, to reach the purpose of controlling emission angle and transmitting boundary.Simultaneously, prior, by concentration of energy, not only with respect to the induction operating distance that can improve wave beam, and relative resonance manner can effectively improve the efficiency of wireless transmission.
Claims (5)
1. the wireless charging technology based on beam forming technique and direction-adaptive, comprise the following steps, the first step: charging device and be recharged between equipment and set up wireless connections by communication, charging device completes being recharged the perception of equipment, until both sides know need to towards direction and the information such as distance after, the pairing process finishes; Second step: the information such as direction that this charging device is definite according to previous step, carry out the electromagnetic wave beam compression towards specific direction; The 3rd step: be recharged this wave beam of device-aware, and carry out the compression of one's own side's wave beam according to this wave beam, both sides carry out Energy Transfer according to resonance frequency definite in the first step; The 4th step: after the charging task completes, both sides close the beam forming function.
2. the wireless charging technology based on beam forming technique and direction-adaptive as claimed in claim 1, it is characterized in that: the communication in the first step and the 4th step is Wi-Fi or bluetooth.
3. the wireless charging technology based on beam forming technique and direction-adaptive as claimed in claim 1 is characterized in that: charging device and be recharged the working method that all adopts omnidirectional antenna between equipment in the first step.
4. the wireless charging technology based on beam forming technique and direction-adaptive as claimed in claim 1, it is characterized in that: in second step, charging device changes omnidirectional's wireless transmission for to launch towards certain orientation.
5. the described wireless charging technology based on beam forming technique and direction-adaptive of claim as arbitrary as claim 1-4, it is characterized in that: after the 4th step, charging device is reworked by communication, finds a next equipment that needs charging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2013103917272A CN103441583A (en) | 2013-08-05 | 2013-09-02 | Direction self-adaption wireless charging technology based on beam forming |
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| CN201310335910 | 2013-08-05 | ||
| CN201310335910.0 | 2013-08-05 | ||
| CN2013103917272A CN103441583A (en) | 2013-08-05 | 2013-09-02 | Direction self-adaption wireless charging technology based on beam forming |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104393688A (en) * | 2014-11-13 | 2015-03-04 | 镇江博联电子科技有限公司 | Wireless charging device with charging priority judging function and charging method of wireless charging device |
| WO2016070342A1 (en) * | 2014-11-05 | 2016-05-12 | 华为技术有限公司 | Wireless charging method, wireless access point, and wireless charging system |
| CN107276253A (en) * | 2017-07-13 | 2017-10-20 | 郑州携能通信技术有限公司 | A kind of method and device for realizing wireless charging |
| CN107579568A (en) * | 2017-07-27 | 2018-01-12 | 金虎林 | Utilize the wireless charging system of Beamforming antennas |
| CN107612068A (en) * | 2017-09-21 | 2018-01-19 | 深圳市盛路物联通讯技术有限公司 | A kind of wireless charging method and charging equipment based on built-in aerial |
| CN109245221A (en) * | 2018-10-12 | 2019-01-18 | Oppo（重庆）智能科技有限公司 | Wireless charging method, system and the wireless charger of mobile terminal |
| WO2021136294A1 (en) * | 2019-12-31 | 2021-07-08 | 深圳市万普拉斯科技有限公司 | Wireless charging method and apparatus, system, computer device and readable storage medium |
| US11923693B2 (en) | 2020-09-29 | 2024-03-05 | Huawei Digital Power Technologies Co., Ltd. | Wireless power supply apparatus and wireless power receiving terminal |
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| JPH09191580A (en) * | 1996-01-12 | 1997-07-22 | Tdk Corp | Non-contact type charging device |
| CN102834292A (en) * | 2010-04-08 | 2012-12-19 | 高通股份有限公司 | Wireless power antenna alignment adjustment system for vehicles |
| WO2013059441A1 (en) * | 2011-10-18 | 2013-04-25 | Witricity Corporation | Wireless energy transfer for photovoltaic panels |
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- 2013-09-02 CN CN2013103917272A patent/CN103441583A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH09191580A (en) * | 1996-01-12 | 1997-07-22 | Tdk Corp | Non-contact type charging device |
| CN102834292A (en) * | 2010-04-08 | 2012-12-19 | 高通股份有限公司 | Wireless power antenna alignment adjustment system for vehicles |
| WO2013059441A1 (en) * | 2011-10-18 | 2013-04-25 | Witricity Corporation | Wireless energy transfer for photovoltaic panels |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016070342A1 (en) * | 2014-11-05 | 2016-05-12 | 华为技术有限公司 | Wireless charging method, wireless access point, and wireless charging system |
| CN104393688A (en) * | 2014-11-13 | 2015-03-04 | 镇江博联电子科技有限公司 | Wireless charging device with charging priority judging function and charging method of wireless charging device |
| CN107276253A (en) * | 2017-07-13 | 2017-10-20 | 郑州携能通信技术有限公司 | A kind of method and device for realizing wireless charging |
| CN107579568A (en) * | 2017-07-27 | 2018-01-12 | 金虎林 | Utilize the wireless charging system of Beamforming antennas |
| CN107612068A (en) * | 2017-09-21 | 2018-01-19 | 深圳市盛路物联通讯技术有限公司 | A kind of wireless charging method and charging equipment based on built-in aerial |
| CN107612068B (en) * | 2017-09-21 | 2019-11-19 | 深圳市盛路物联通讯技术有限公司 | A kind of wireless charging method and charging equipment based on built-in antenna |
| CN109245221A (en) * | 2018-10-12 | 2019-01-18 | Oppo（重庆）智能科技有限公司 | Wireless charging method, system and the wireless charger of mobile terminal |
| WO2021136294A1 (en) * | 2019-12-31 | 2021-07-08 | 深圳市万普拉斯科技有限公司 | Wireless charging method and apparatus, system, computer device and readable storage medium |
| US11923693B2 (en) | 2020-09-29 | 2024-03-05 | Huawei Digital Power Technologies Co., Ltd. | Wireless power supply apparatus and wireless power receiving terminal |
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Application publication date: 20131211 |