CN104052125B - wireless charging method and charging device - Google Patents
wireless charging method and charging device Download PDFInfo
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- CN104052125B CN104052125B CN201410302573.XA CN201410302573A CN104052125B CN 104052125 B CN104052125 B CN 104052125B CN 201410302573 A CN201410302573 A CN 201410302573A CN 104052125 B CN104052125 B CN 104052125B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
Embodiments provide a kind of wireless charging method and charging device.Method comprises: a charging device was at least determined charged area according to filling electric at least one before by the direction of charging device; Described charging device launches the first electromagnetic wave to described charged area.The embodiment of the present invention by launching the first electromagnetic wave in charged area, even if be in described charged area need the dump energy of charging device very low, cannot signal be sent, charging device also can charge to such charging device that needs.Further, described charged area was determined by charging device according to filling electric at least one before, again occurs needing the probability of charging device higher, therefore, can reduce the waste of energy to a certain extent in such charged area.
Description
Technical field
The embodiment of the present invention relates to wireless technical field, particularly relates to a kind of wireless charging method and charging device.
Background technology
What wireless charging technology adopted is do not need to connect by electric wire completely, utilizes wireless transmission method to carry out the technology of charging for equipment.At present, the wireless charging technology of main flow has electromagnetic induction, radio wave (being also electromagnetic wave) and resonant mode three kinds of modes.
In order to improve the energy transmission efficiency adopting radio wave mode to carry out wireless charging, can, by controlling electromagnetic transmit direction, making concentration of energy can arrive on the electromagnetic radiation direction needing charging device, reducing the waste of energy.Before directivity wireless charging starts, usually require to need charging device to send certain signal, make charging device determine to need the direction of charging device.But, when needing the dump energy of charging device very low, cannot signal be sent, causing charging device cannot correctly determine its direction, thus cannot the wireless charging of travel direction.
Summary of the invention
In view of this, an object of the embodiment of the present invention is to provide a kind of wireless charging scheme.
For achieving the above object, according to an aspect of the embodiment of the present invention, a kind of wireless charging method is provided, comprises:
One charging device was at least determined charged area according to filling electric at least one before by the direction of charging device;
Described charging device launches the first electromagnetic wave to described charged area.
For achieving the above object, according to another aspect of the embodiment of the present invention, a kind of charging device is provided, comprises:
Area determination module, at least being determined charged area according to filling electric at least one before described charging device by the direction of charging device;
First transmitter module, for launching the first electromagnetic wave to described charged area.
At least one technical scheme above in multiple technical scheme has following beneficial effect:
The embodiment of the present invention by launching the first electromagnetic wave in charged area, even if be in described charged area need the dump energy of charging device very low, cannot signal be sent, charging device also can charge to such charging device that needs.Further, described charged area was determined by charging device according to filling electric at least one before, again occurs needing the probability of charging device higher, therefore, can reduce the waste of energy to a certain extent in such charged area.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of a kind of wireless charging method embodiment provided by the invention;
Fig. 2 a is the structural representation of a kind of charging device embodiment one provided by the invention;
Fig. 2 b ~ 2d is respectively the structural representation of a kind of implementation of Fig. 2 a illustrated embodiment;
Fig. 3 is the structural representation of a kind of charging device embodiment two provided by the invention.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
Fig. 1 is the schematic flow sheet of a kind of wireless charging method embodiment provided by the invention.As shown in Figure 1, the present embodiment comprises:
110, a charging device was at least determined charged area according to filling electric at least one before by the direction of charging device.
In the present embodiment, described charging device is can any equipment of emitting electromagnetic wave.Alternatively, described charging device is the equipment that position is fixed substantially, such as, and mobile communication base station, WAP (wireless access point) (AccessPoint is called for short AP) etc.
In the present embodiment, described is any equipment that the electromagnetic wave received can be converted into electric energy by charging device.Alternatively, described is mobile device by charging device, such as, and mobile phone, PAD etc.
In the present embodiment, filled electricity before described and referred to, before described charging device, filled electricity.
In the optional implementation of one, described charging device was at least determined charged area according to filling electric at least one before by the direction of charging device, comprising:
Described charging device according to filled electricity before at least one by the direction of charging device and, described first electromagnetic transmitting power or transmitting range, determines described charged area.
Alternatively, described first electromagnetic transmitting power or transmitting range preset.For example, if preset described first electromagnetic transmitting power, then can according to described transmitting power and described before filled electricity at least one by the direction of charging device, determine described first electromagnetic transmitting range, thus determined described charged area according to described transmitting range and at least one of filling electricity before described by the direction of charging device.Again for example, if preset described first electromagnetic transmitting range, then can be determined described charged area according to described transmitting range and at least one of filling electricity before described by the direction of charging device.
Particularly, the angular range of the relatively described charging device in described charged area cover described before filled electricity at least one by the direction of charging device, the ultimate range of the relatively described charging device in described charged area is no more than described transmitting range.
Alternatively, the angular range of the relatively described charging device in described charged area covers, by filled before electricity each by centered by the direction of charging device, each limit expansion certain angle angular range, such as, by filled electricity before each by centered by the direction of charging device, each limit expansion angular range of 5 degree.Wherein, the size of described certain angle can be determined according to described first electromagnetic transmitting power, such as, when transmitting power is large, described certain angle can be larger, is such as 5 degree, when transmitting power hour, described certain angle can be smaller, and be such as 2 degree, the present embodiment does not limit this.
In another optional implementation, described charging device was at least determined charged area according to filling electric at least one before by the direction of charging device, comprising:
Described charging device at least according to fill electricity before at least one by the direction of charging device and described at least one by the distance of charging device and described charging device, determine described charged area.
For each by charging device, described charging device determines its direction and distance is equivalent to determine its position, and vice versa.Therefore, in the present embodiment, described charging device at least according to fill electricity before at least one by the direction of charging device and described at least one determined described charged area by the distance of charging device and described charging device, be equivalent to described charging device at least according to fill electricity before at least one by the position of charging device, determine described charged area.
Particularly, the relation of described charged area and described direction, distance or position can have multiple, includes but not limited to following several.
Alternatively, the described charged area determined of described charging device by, by filled electricity before each by centered by the position of charging device, certain length is radius region is formed.Wherein, the size of described certain length can be determined according to described first electromagnetic transmitting power, such as, when transmitting power is large, described certain length can be larger, is such as 8 meters, when transmitting power hour, described certain length can be smaller, and be such as 1 meter, the present embodiment does not limit this.
Alternatively, the described charged area determined of described charging device by, by filled electricity before each by centered by the direction of charging device, each limit expansion certain angle and by correspondence by centered by the distance of charging device, the region of each limit expansion certain length formed.Wherein, the size of described certain angle, described certain length all can be determined according to described first electromagnetic transmitting power, repeats no more herein.
Alternatively, the described charged area determined of described charging device by, by filled electricity before each by centered by the position of charging device, the region that formed of the angular range of the certain length relatively described charging device of scope that is radius and described first electromagnetic transmitting range formed.Wherein, the size of described certain angle, described certain length all can be determined according to described first electromagnetic transmitting power, repeats no more herein.
In arbitrary optional implementation, described charged area can be a slice continuous print region, also can be made up of mutual disjunct multi-disc region.
120, described charging device launches the first electromagnetic wave to described charged area.
Particularly, launching the first electromagnetic wave to described charged area and be equivalent to broadcast the first electromagnetic wave in described charged area, being referred to as regional broadcast pattern for convenience of describing in the present embodiment.
In order to take into account in described charged area may exist different charge frequency, different distance need charging device, alternatively, described first electromagnetic frequency and/or phase place are periodically variable.
Alternatively, described first electromagnetic frequency changes successively according to the frequency in a frequency sets preset.Correspondingly, for by charging device, can in its nonvolatile storage or client identification module (SubscriberIdentityModule, be called for short SIM) block or global customers identification module (UniversalSubscriberIdentityModule, be called for short USIM) configure in this frequency sets in card one, make by charging device depleted of energy or very low in also can obtain this frequency from this locality, and electromagnetic wave reception antenna is configured to consistent with this frequency, to receive the electromagnetic wave that described charging device launches with broadcast mode.
Usually, described charging device has an aerial array, by selecting the parameter such as phase place, amplitude, polarity of suitable array element and array element in aerial array, reaches the object to certain orientation emitting electromagnetic wave.After charged area is determined, charging device adjusts the parameter of each array element, makes the electromagnetic coverage of transmitting consistent as far as possible with above-mentioned charged area.The charged area of described charging device can reset as required, and the charged area after replacement is all Probability Areas under certain transmitting power restriction alternatively.
In the optional implementation of one, the present embodiment also comprises:
In response to determining the direction that at least one needs charging device, described charging device to described at least one need the direction of charging device to launch the second electromagnetic wave.
In the present embodiment, described need charging device to be current needs by charge by charging device.Particularly, to described at least one need the direction of charging device to launch the second electromagnetic wave to be equivalent to directionally emitting electromagnetic wave, be referred to as directional pattern for convenience of describing in the present embodiment.
In order to improve to described at least one need the charge efficiency of charging device, alternatively, described second electromagnetic transmitting power is higher than described first electromagnetic transmitting power.
Usually, described charging device can have various ways to determine to need the direction of charging device, such as, determines according to described certain signal needing charging device to send, or, according to detection to describedly need the position of charging device to determine, etc.
Alternatively, the present embodiment also comprises:
Receive at least one charge request needing charging device to send separately described;
According to each described charge request, described in determining, at least one needs the direction of charging device.
Usually, for needing charging device, in order to more effectively be charged, when its electricity acquires a certain degree, need charging device can send charge request to charging device, correspondingly, described charging device determines that the equipment sending charge request is for needing charging device.
Usually, before charging complete, need charging device periodically can send charge request to described charging device, until charging complete.Correspondingly, for described charging device, if exceed certain hour after certain needs the charge request of charging device and again do not receive front once receiving the charge request that this needs charging device, then can think that this needs charging device charging complete, without the need to having charged.
Alternatively, also comprise after the charge request that described in described reception, at least one needs charging device to send separately: according to each described charge request, described in determining, at least one needs the charge frequency of charging device; Correspondingly, described charging device to described at least one need the direction of charging device to launch the second electromagnetic wave, comprising:
Described charging device according to described at least one need the charge frequency of charging device, to described at least one need the direction of charging device to launch the second electromagnetic wave.
For example, the charge frequency of charging device is needed to be f1 if described charging device determines to be positioned at first of first direction, being positioned at second of second direction needs the charge frequency of charging device to be f2, being positioned at the 3rd of third direction needs the charge frequency of charging device to be f3, then described charging device with the frequency of f1 to described first direction emitting electromagnetic wave, with the frequency of f2 to described second direction emitting electromagnetic wave, with the frequency of f3 to described third direction emitting electromagnetic wave.
In a kind of possible scene, in a charge request, carry the position that correspondence needs charging device; Described according to each described charge request, described in determining, at least one needs the direction of charging device, comprising:
According to the position needing charging device in described charge request, determine the described direction needing charging device.
In this scene, alternatively, described to described at least one need the direction of charging device to launch the second electromagnetic wave to comprise: launch the second electromagnetic wave to the described position of charging device that needs.
Particularly, except above-mentioned direction, described charging device according to the position needing charging device in described charge request, can also determine the described distance needing charging device and described charging device; Correspondingly, the distance controlling of charging device and described charging device can be needed to described the second electromagnetic transmitting power and the phase place needing the direction of charging device to launch according to this.
In the scene that another is possible, described according to each described charge request, described in determining, at least one needs the direction of charging device, comprising:
According to the arrival direction of each described charge request received, described in determining, at least one needs the direction of charging device.
It should be noted that, described charging device to described at least one need the direction of charging device launch second electromagnetic while, one may be, described charging device is no longer to described charged area emitting electromagnetic wave, that is, in response to determining the direction that at least one needs charging device, described charging device is switched to directional pattern from regional broadcast pattern.Correspondingly, the present embodiment also comprises:
In response to determining the direction that at least one needs charging device, described charging device stops launching the first electromagnetic wave to described charged area.
Alternatively, 120 are specially: in response to not determining arbitrary direction needing charging device, described charging device launches the first electromagnetic wave to described charged area.
Wherein, describedly do not determine that arbitrary direction of charging device that needs comprises: do not determine whether there is and need charging device, or, determine to exist at least one need charging device but do not determine described at least one need direction arbitrary in charging device.
Another kind may be, described charging device to described at least one need the direction of charging device launch second electromagnetic while, described charging device can continue to described charged area emitting electromagnetic wave, that is, in response to determining the direction that at least one needs charging device, described charging device adds directional pattern on the basis of regional broadcast pattern.Further, after adding directional pattern, the transmitting power under regional broadcast pattern etc. can be constant, or, change.Alternatively, in order to reduce the energy ezpenditure of described charging device, the present embodiment also comprises:
In response to determining the direction that at least one needs charging device, described charging device reduces described first electromagnetic transmitting power.
Correspondingly, described charging device is launched the first electromagnetic wave to described charged area and is specially: described charging device launches the first electromagnetic wave with the transmitting power after reducing to described charged area.
In this implementation, due to described at least one need the direction of charging device to launch the second electromagnetic wave, namely, described charging device to described at least one need charging device to charge, now, described at least one need charging device to have again a new role, at least one of namely filling electricity before described charging device is by charging device.Correspondingly, the present embodiment also comprises:
At least according to described at least one need the direction of charging device, to upgrade described charged area.
Particularly, the mode of described renewal can with reference to the above-mentioned mode determining described charged area.In addition, charging device is needed for each, when utilize its direction to upgrade described charged area and can have multiple possibility, such as need in the process of charging device to described at described charging device, or, described charging device to described need charging device charging complete after, or, described charging device give described at least one need charging device charging complete after and before not determining that other needs the direction of charging device, or, when described charging device once starts, etc.
In the present embodiment, in order to make up the energy ezpenditure of described charging device, alternatively, described charging device, while emitting electromagnetic wave, also can adopt the mode of full duplex receive the electromagnetic wave of its own transmission and be converted to electric energy.
A kind of possible application scenarios of the present embodiment is exemplified below: charging device one is started shooting, the charge request of charging device is needed if do not receive, just according to this locality store before filled electricity determined charged area by the position of charging device, with the transmitting power of P1 to described charged area emitting electromagnetic wave, when receiving one and needing the charge request of charging device, determine this position needing charging device, the position emitting electromagnetic wave of charging device is needed to this with the transmitting power of P2, simultaneously with the transmitting power of P3 to described charged area emitting electromagnetic wave, wherein, P2>>P1, P3=P1 or P3<P1, when this needs charging device charging complete, no longer send charge request to described charging device, if described charging device does not receive the charge request that other needs charging device yet, then described charging device stops needing the position emitting electromagnetic wave of charging device to this, and according to this location updating needing charging device charged area, and to continue with the transmitting power of P1 to the described charged area emitting electromagnetic wave after upgrading.
The present embodiment by launching the first electromagnetic wave in charged area, even if be in described charged area need the dump energy of charging device very low, cannot signal be sent, charging device also can charge to such charging device that needs.Further, described charged area was determined by charging device according to filling electric at least one before, again occurs needing the probability of charging device higher, therefore, can reduce the waste of energy to a certain extent in such charged area.
Fig. 2 a is the structural representation of a kind of charging device embodiment one provided by the invention.As shown in Figure 2 a, charging device 200 comprises:
Area determination module 21, at least being determined charged area according to filling electric at least one before charging device 200 by the direction of charging device;
First transmitter module 22, for launching the first electromagnetic wave to described charged area.
In the present embodiment, charging device 200 is can any equipment of emitting electromagnetic wave.Alternatively, described charging device is the equipment that position is fixed substantially, such as, and mobile communication base station, AP etc.
In the present embodiment, described is any equipment that the electromagnetic wave received can be converted into electric energy by charging device.Alternatively, described is mobile device by charging device, such as, and mobile phone, PAD etc.
In the optional implementation of one, area determination module 21 specifically for:
According to filled electricity before at least one by the direction of charging device and, described first electromagnetic transmitting power or transmitting range, determines described charged area.
Alternatively, described first electromagnetic transmitting power or transmitting range preset.For example, if preset described first electromagnetic transmitting power, then area determination module 21 can according to described transmitting power and described before filled electricity at least one by the direction of charging device, determine described first electromagnetic transmitting range, thus determined described charged area according to described transmitting range and at least one of filling electricity before described by the direction of charging device.Again for example, if preset described first electromagnetic transmitting range, then area determination module 21 can have been determined described charged area according to described transmitting range and at least one of filling electricity before described by the direction of charging device.
Particularly, the angular range of the relatively described charging device in described charged area cover described before filled electricity at least one by the direction of charging device, the ultimate range of the relatively described charging device in described charged area is no more than described transmitting range.
Alternatively, the angular range of the relatively described charging device in described charged area covers, by filled before electricity each by centered by the direction of charging device, each limit expansion certain angle angular range, such as, by filled electricity before each by centered by the direction of charging device, each limit expansion angular range of 5 degree.Wherein, the size of described certain angle can be determined according to described first electromagnetic transmitting power, such as, when transmitting power is large, described certain angle can be larger, is such as 5 degree, when transmitting power hour, described certain angle can be smaller, and be such as 2 degree, the present embodiment does not limit this.
In another optional implementation, area determination module 21 specifically for:
At least according to fill electricity before at least one by the direction of charging device and described at least one by the distance of charging device and charging device 200, determine described charged area.
For each by charging device, charging device 200 determines its direction and distance is equivalent to determine its position, and vice versa.Therefore, in the present embodiment, area determination module 21 at least according to fill electricity before at least one by the direction of charging device and described at least one determined described charged area by the distance of charging device and charging device 200, be equivalent to area determination module 21 at least according to fill electricity before at least one by the position of charging device, determine described charged area.
Particularly, the relation of described charged area and described direction, distance or position can have multiple, includes but not limited to following several.
Alternatively, the described charged area determined of area determination module 21 by, by filled electricity before each by centered by the position of charging device, certain length is radius region is formed.Wherein, the size of described certain length can be determined according to described first electromagnetic transmitting power, such as, when transmitting power is large, described certain length can be larger, is such as 8 meters, when transmitting power hour, described certain length can be smaller, and be such as 1 meter, the present embodiment does not limit this.
Alternatively, the described charged area determined of area determination module 21 by, by filled electricity before each by centered by the direction of charging device, each limit expansion certain angle and by correspondence by centered by the distance of charging device, the region of each limit expansion certain length formed.Wherein, the size of described certain angle, described certain length all can be determined according to described first electromagnetic transmitting power, repeats no more herein.
Alternatively, the described charged area determined of area determination module 21 by, by filled electricity before each by centered by the position of charging device, the region that formed of the angular range of the certain length relatively described charging device of scope that is radius and described first electromagnetic transmitting range formed.Wherein, the size of described certain angle, described certain length all can be determined according to described first electromagnetic transmitting power, repeats no more herein.
In arbitrary optional implementation, the described charged area that area determination module 21 is determined can be a slice continuous print region, also can be made up of mutual disjunct multi-disc region.
Particularly, the first transmitter module 22 is launched the first electromagnetic wave and is equivalent to broadcast the first electromagnetic wave in described charged area to described charged area, is referred to as regional broadcast pattern for convenience of describing in the present embodiment.
In order to take into account in described charged area may exist different charge frequency, different distance need charging device, alternatively, described first electromagnetic frequency and/or phase place are periodically variable.
Alternatively, described first electromagnetic frequency changes successively according to the frequency in a frequency sets preset.Correspondingly, for by charging device, one in this frequency sets can be configured in its nonvolatile storage or in SIM card or usim card, make by charging device depleted of energy or very low in also can obtain this frequency from this locality, and electromagnetic wave reception antenna is configured to consistent with this frequency, to receive the electromagnetic wave that the first transmitter module 22 launches with broadcast mode.
Usually, charging device 200 has an aerial array, and the first transmitter module 22, by selecting the parameter such as phase place, amplitude, polarity of suitable array element and array element in aerial array, reaches the object to certain orientation emitting electromagnetic wave.After area determination module 21 determines charged area, the first transmitter module 22 adjusts the parameter of each array element, makes the electromagnetic coverage of transmitting consistent as far as possible with above-mentioned charged area.The charged area of charging device 200 can reset as required, and the charged area after replacement is all Probability Areas under certain transmitting power restriction alternatively.
In the optional implementation of one, as shown in Figure 2 b, charging device 200 also comprises:
Second transmitter module 23, in response to determining the direction that at least one needs charging device, to described at least one need the direction of charging device to launch the second electromagnetic wave.
In the present embodiment, described need charging device to be current needs by charge by charging device.Particularly, the second transmitter module 23 to described at least one need the direction of charging device to launch the second electromagnetic wave to be equivalent to directionally emitting electromagnetic wave, be referred to as directional pattern for convenience of describing in the present embodiment.
In order to improve to described at least one need the charge efficiency of charging device, alternatively, described second electromagnetic transmitting power is higher than described first electromagnetic transmitting power.
Usually, charging device 200 can have various ways to determine to need the direction of charging device, such as, determines according to described certain signal needing charging device to send, or, according to detection to describedly need the position of charging device to determine, etc.
Alternatively, as shown in Figure 2 c, charging device 200 also comprises:
Receiver module 24, for receiving at least one charge request needing charging device to send separately described;
Direction determination module 25, for according to each described charge request, determine described at least one need the direction of charging device.
Correspondingly, the second transmitter module 23 specifically for: determine in response to direction determination module 25 direction that at least one needs charging device, to described at least one need the direction of charging device to launch the second electromagnetic wave.
Usually, for needing charging device, in order to more effectively be charged, when its electricity acquires a certain degree, need charging device can send charge request to charging device, correspondingly, charging device 200 determines that the equipment sending charge request is for needing charging device.
Usually, before charging complete, need charging device periodically can send charge request to charging device 200, until charging complete.Correspondingly, for charging device 200, exceed certain hour after certain needs the charge request of charging device if once receive before receiver module 24 and again do not receive the charge request that this needs charging device, then can think that this needs charging device charging complete, without the need to having charged.
Alternatively, charging device 200 also comprises: frequency determining module, for according to each described charge request, determine described at least one need the charge frequency of charging device; Correspondingly, the second transmitter module 23 specifically for: according to described at least one need the charge frequency of charging device, to described at least one need the direction of charging device to launch the second electromagnetic wave.
For example, the charge frequency of charging device is needed to be f1 if frequency determining module determines to be positioned at first of first direction, being positioned at second of second direction needs the charge frequency of charging device to be f2, being positioned at the 3rd of third direction needs the charge frequency of charging device to be f3, then the second transmitter module 23 with the frequency of f1 to described first direction emitting electromagnetic wave, with the frequency of f2 to described second direction emitting electromagnetic wave, with the frequency of f3 to described third direction emitting electromagnetic wave.
In a kind of possible scene, in a charge request, carry the position that correspondence needs charging device; Direction determination module 25 specifically for: according to the position needing charging device in described charge request, determine the described direction needing charging device.
In this scene, alternatively, the second transmitter module 23 specifically for: launch the second electromagnetic wave to the described position of charging device that needs.
Particularly, except above-mentioned direction, charging device 200 according to the position needing charging device in described charge request, can also determine the described distance needing charging device and described charging device; Correspondingly, the second transmitter module 23 can need the distance controlling of charging device and described charging device to described the second electromagnetic transmitting power and the phase place needing the direction of charging device to launch according to this.
In the scene that another is possible, direction determination module 25 specifically for:
According to the arrival direction of each described charge request received, described in determining, at least one needs the direction of charging device.
It should be noted that, the second transmitter module 23 to described at least one need the direction of charging device launch second electromagnetic while, one may be, first transmitter module 22 is no longer to described charged area emitting electromagnetic wave, that is, in response to determining the direction that at least one needs charging device, charging device 200 is switched to directional pattern from regional broadcast pattern.Correspondingly, the first transmitter module 22 also for: in response to determining the direction that at least one needs charging device, stop launching the first electromagnetic wave to described charged area.
Alternatively, the first transmitter module 22 specifically for: in response to not determining arbitrary direction needing charging device, launch the first electromagnetic wave to described charged area.
Wherein, describedly do not determine that arbitrary direction of charging device that needs comprises: do not determine whether there is and need charging device, or, determine to exist at least one need charging device but do not determine described at least one need direction arbitrary in charging device.
Another kind may be, the second transmitter module 23 to described at least one need the direction of charging device launch second electromagnetic while, first transmitter module 22 can continue to described charged area emitting electromagnetic wave, that is, in response to determining the direction that at least one needs charging device, charging device 200 adds directional pattern on the basis of regional broadcast pattern.Further, after adding directional pattern, the transmitting power under regional broadcast pattern etc. can be constant, or, change.Alternatively, in order to reduce the energy ezpenditure of described charging device, as shown in Figure 2 d, charging device 200 also comprises:
Power regulation module 26, in response to determining the direction that at least one needs charging device, reduces described first electromagnetic transmitting power.
Correspondingly, the first transmitter module 22 specifically for: with power regulation module 26 reduce after transmitting power launch the first electromagnetic wave to described charged area.
In this implementation, due to the second transmitter module 23 to described at least one need the direction of charging device to launch the second electromagnetic wave, namely, charging device 200 to described at least one need charging device to charge, now, described at least one need charging device to have again a new role, at least one of namely filling electricity before charging device 200 is by charging device.Correspondingly, area determination module 21 also for:
At least according to described at least one need the direction of charging device, to upgrade described charged area.
Particularly, the mode of described renewal can with reference to the above-mentioned mode determining described charged area.In addition, charging device is needed for each, when area determination module 21 utilizes its direction to upgrade described charged area can multiple possibility, such as needs in the process of charging device to described at charging device 200, or, charging device 200 to described need charging device charging complete after, or, charging device 200 give described at least one need charging device charging complete after and before not determining that other needs the direction of charging device, or, when charging device 200 once starts, etc.
In the present embodiment, in order to make up the energy ezpenditure of described charging device, alternatively, charging device 200, while emitting electromagnetic wave, also can adopt the mode of full duplex receive the electromagnetic wave of its own transmission and be converted to electric energy.
A kind of possible application scenarios of the charging device 200 that the present embodiment provides is exemplified below: charging device 200 1 is started shooting, the charge request of charging device is needed if do not receive, just according to this locality store before filled electricity determined charged area by the position of charging device, with the transmitting power of P1 to described charged area emitting electromagnetic wave, when receiving one and needing the charge request of charging device, determine this position needing charging device, the position emitting electromagnetic wave of charging device is needed to this with the transmitting power of P2, simultaneously with the transmitting power of P3 to described charged area emitting electromagnetic wave, wherein, P2>>P1, P3=P1 or P3<P1, when this needs charging device charging complete, no longer send charge request to charging device 200, if charging device 200 does not receive the charge request that other needs charging device yet, then charging device 200 stops needing the position emitting electromagnetic wave of charging device to this, and according to this location updating needing charging device charged area, and to continue with the transmitting power of P1 to the described charged area emitting electromagnetic wave after upgrading.
The present embodiment launches the first electromagnetic wave by the first transmitter module in charging device in charged area, even if be in described charged area need the dump energy of charging device very low, cannot signal be sent, charging device also can charge to such charging device that needs.Further, described charged area is that area determination module was determined by charging device according to filling electric at least one before described charging device, again occur needing the probability of charging device in such charged area higher, therefore, the waste of energy can be reduced to a certain extent.
Fig. 3 is the structural representation of a kind of charging device embodiment two provided by the invention.As shown in Figure 3, charging device 300 comprises:
Processor (processor) 31, communication interface (CommunicationsInterface) 32, memory (memory) 33 and communication bus 34.Wherein:
Processor 31, communication interface 32 and memory 33 complete mutual communication by communication bus 34.
Communication interface 32, for the communication such as needing the external equipments such as charging device.
Processor 31, for executive program 332, specifically can perform the correlation step in above-mentioned wireless charging method embodiment.
Alternatively, charging device 300 also comprises an aerial array (not shown), an electric energy conversion module (not shown), described electric energy conversion module be used for by described antenna array receiver to electromagnetic wave be converted to electric energy.
Particularly, program 332 can comprise program code, and described program code comprises computer-managed instruction.
Processor 31 may be a central processor CPU, or specific integrated circuit ASIC (ApplicationSpecificIntegratedCircuit), or be configured to the one or more integrated circuits implementing wireless charging method embodiment.
Memory 33, for depositing program 332.Memory 33 may comprise high-speed RAM memory, still may comprise nonvolatile memory (non-volatilememory), such as at least one magnetic disc store.Program 332 specifically may be used for making charging device 300 perform following steps:
At least determined charged area according to filling electric at least one before charging device 300 by the direction of charging device;
The first electromagnetic wave is launched to described charged area.
In program 332, the specific implementation of each step see description corresponding in the corresponding steps in above-mentioned wireless charging method embodiment and unit, can be not repeated herein.Those skilled in the art can be well understood to, and for convenience and simplicity of description, the equipment of foregoing description and the specific works process of module, can describe with reference to the corresponding process in aforementioned wireless charging method embodiment, not repeat them here.
Those of ordinary skill in the art can recognize, in conjunction with unit and the method step of each example of embodiment disclosed herein description, can realize with the combination of electronic hardware or computer software and electronic hardware.These functions perform with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.Professional and technical personnel can use distinct methods to realize described function to each specifically should being used for, but this realization should not thought and exceeds scope of the present invention.
If described function using the form of SFU software functional unit realize and as independently production marketing or use time, can be stored in a computer read/write memory medium.Based on such understanding, the part of the part that technical scheme of the present invention contributes to original technology in essence in other words or this technical scheme can embody with the form of software product, this computer software product is stored in a storage medium, comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform all or part of step of method described in each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, portable hard drive, read-only memory (ROM, Read-OnlyMemory), random access memory (RAM, RandomAccessMemory), magnetic disc or CD etc. various can be program code stored medium.
Above execution mode is only for illustration of the present invention; and be not limitation of the present invention; the those of ordinary skill of relevant technical field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all equivalent technical schemes also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (20)
1. a wireless charging method, is characterized in that, described method comprises:
One charging device was at least determined charged area according to filling electric at least one before by the direction of charging device;
Described charging device launches the first electromagnetic wave to described charged area.
2. method according to claim 1, is characterized in that, described charging device was at least determined charged area according to filling electric at least one before by the direction of charging device, comprising:
Described charging device according to filled electricity before at least one by the direction of charging device and, described first electromagnetic transmitting power or transmitting range, determines described charged area.
3. method according to claim 1, is characterized in that, described charging device was at least determined charged area according to filling electric at least one before by the direction of charging device, comprising:
Described charging device at least according to fill electricity before at least one by the direction of charging device and described at least one by the distance of charging device and described charging device, determine described charged area.
4. method according to claim 1, is characterized in that, described first electromagnetic frequency and/or phase place are periodically variable.
5., according to described method arbitrary in Claims 1 to 4, it is characterized in that, described method also comprises:
In response to determining the direction that at least one needs charging device, described charging device to described at least one need the direction of charging device to launch the second electromagnetic wave.
6. method according to claim 5, is characterized in that, described second electromagnetic transmitting power is higher than described first electromagnetic transmitting power.
7. method according to claim 5, is characterized in that, described method also comprises:
In response to determining the direction that at least one needs charging device, described charging device stops launching the first electromagnetic wave to described charged area.
8. method according to claim 5, is characterized in that, described method also comprises:
In response to determining the direction that at least one needs charging device, described charging device reduces described first electromagnetic transmitting power.
9. method according to claim 5, is characterized in that, described method also comprises:
Receive at least one charge request needing charging device to send separately described;
According to each described charge request, described in determining, at least one needs the direction of charging device.
10. method according to claim 5, is characterized in that, described method also comprises:
At least according to described at least one need the direction of charging device, to upgrade described charged area.
11. 1 kinds of charging devices, is characterized in that, described charging device comprises:
Area determination module, at least being determined charged area according to filling electric at least one before described charging device by the direction of charging device;
First transmitter module, for launching the first electromagnetic wave to described charged area.
12. charging devices according to claim 11, is characterized in that, described area determination module specifically for:
According to filled electricity before at least one by the direction of charging device and, described first electromagnetic transmitting power or transmitting range, determines described charged area.
13. charging devices according to claim 11, is characterized in that, described area determination module specifically for:
At least according to fill electricity before at least one by the direction of charging device and described at least one by the distance of charging device and described charging device, determine described charged area.
14. charging devices according to claim 11, is characterized in that, described first electromagnetic frequency and/or phase place are periodically variable.
15. according to described charging device arbitrary in claim 11 ~ 14, and it is characterized in that, described charging device also comprises:
Second transmitter module, in response to determining the direction that at least one needs charging device, to described at least one need the direction of charging device to launch the second electromagnetic wave.
16. charging devices according to claim 15, is characterized in that, described second electromagnetic transmitting power is higher than described first electromagnetic transmitting power.
17. charging devices according to claim 15, is characterized in that, described first transmitter module also for: in response to determining the direction that at least one needs charging device, stop launching the first electromagnetic wave to described charged area.
18. charging devices according to claim 15, is characterized in that, described charging device also comprises:
Power regulation module, in response to determining the direction that at least one needs charging device, reduces described first electromagnetic transmitting power.
19. charging devices according to claim 15, is characterized in that, described charging device also comprises:
Receiver module, for receiving at least one charge request needing charging device to send separately described;
Direction determination module, for according to each described charge request, determine described at least one need the direction of charging device.
20. charging devices according to claim 15, is characterized in that, described area determination module also for:
At least according to described at least one need the direction of charging device, to upgrade described charged area.
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| CN114204698A (en) * | 2020-09-17 | 2022-03-18 | 华为数字能源技术有限公司 | Wireless charging method and wireless charging system |
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| JP5645438B2 (en) * | 2010-03-25 | 2014-12-24 | キヤノン株式会社 | Power supply apparatus and power supply method |
| CN103151825B (en) * | 2013-04-09 | 2015-02-11 | 哈尔滨工业大学 | Non-contact autonomous wireless charging device for indoor moving robot and method thereof |
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