CN103812231B

CN103812231B - Wireless charging method and wireless charging device

Info

Publication number: CN103812231B
Application number: CN201410072276.0A
Authority: CN
Inventors: 刘嘉
Original assignee: Beijing Zhigu Ruituo Technology Services Co Ltd
Current assignee: Beijing Zhigu Ruituo Technology Services Co Ltd
Priority date: 2014-02-28
Filing date: 2014-02-28
Publication date: 2017-06-09
Anticipated expiration: 2034-02-28
Also published as: CN103812231A

Abstract

A kind of wireless charging method and wireless charging device are provided in the embodiment of the present invention, is related to wireless charging technical field.Methods described includes：Obtain the status information of wireless energy receiving device；The charge efficiency distribution of wireless energy transmission equipment is obtained according to the status information.The method and device of the embodiment of the present invention obtains the charge efficiency distribution of transmitting equipment according to the status information of receiving device, can provide reference to obtain the optimal charge efficiency of wireless charging.

Description

Wireless charging method and wireless charging device

Technical Field

The present invention relates to the field of wireless charging technologies, and in particular, to a wireless charging method and a wireless charging device.

Background

In the wireless charging or wireless power supply technology, energy can be transmitted between a wireless energy transmitting device and a wireless energy receiving device in a wireless mode. The existing wireless charging/power supplying technologies include inductive coupling technology (inductive coupling), magnetic resonance technology (magnetic resonance), microwave energy transmission technology (microwave energy transmission), and the like, wherein the inductive coupling technology and the magnetic resonance technology are suitable for short-distance (centimeter magnitude) wireless charging/power supplying application scenarios, and the microwave energy transmission technology is possible to realize energy transmission in long-distance (maximum distance is about 10 meters) application scenarios.

Compared with the traditional wired mode, the wireless charging mode has the advantages of flexible use, convenient operation, wide application and obvious superiority. A large number of smart phones, wearable devices, communication instruments, microcomputers, portable household appliances, etc. are potential markets for the application of this technology.

Although there are many technical standards and implementations of wireless charging, there is still some commonality between different technologies according to their basic principles. For example, as the distance between the energy transmitting end and the energy receiving end is increased, the charging efficiency is decreased continuously; the charging area and position where the energy receiving end is located, whether Line of sight (Line of sight) exists between the energy receiving end and the transmitting end, the density of energy transmitting equipment and receiving equipment and the like are all important factors influencing efficiency.

Taking the ostia Cota technology as an example, the technology employs thousands of phase-array antennas (phased-array antennas) at a transmitting end to construct a microwave beam, and concentrates energy at an energy receiving end, thereby realizing long-distance wireless charging (up to 9 meters at the maximum). The technique can also implement a detection means (see US8410953 for details) after the energy receiving end moves, so that thousands of antennas (available charging resources) are adjusted to the optimal phase (effective charging resources) one by one, and the receiving end is continuously charged. When one energy transmitting device charges a plurality of energy receiving devices simultaneously, the number of array antennas allocated to different devices, i.e., the available charging resources, will determine the respective maximum charging efficiency. However, if the device moves or enters a non-line-of-sight area, the above phase modulation process is performed continuously, so that not all available resources are necessarily put into use. In summary, in the wireless charging process, the charging efficiency will be affected by various factors.

Disclosure of Invention

The invention aims to provide a wireless charging method and a wireless charging device, which can provide reference for obtaining optimal charging efficiency.

In order to achieve the above object, in a first aspect, an embodiment of the present invention provides a wireless charging method, where the method includes:

acquiring state information of wireless energy receiving equipment;

and obtaining the charging efficiency distribution of the wireless energy transmitting equipment according to the state information.

With reference to the first aspect, in a first possible implementation manner, the charging efficiency distribution is a distribution of charging efficiencies of a unit effective charging resource of the transmitting device to receiving devices in different states in a charging coverage area of the transmitting device.

With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner, the state information includes location information and charging state information of the receiving device.

With reference to the second possible implementation manner of the first aspect, in a third possible implementation manner, the charge state information includes at least one of the following: charging current, charging voltage, charging power, remaining charging time.

With reference to the second possible implementation manner of the first aspect, in a fourth possible implementation manner, the obtaining, according to the state information, a charging efficiency distribution of the wireless energy transmission device includes:

counting a charging coverage area of the transmitting equipment according to the position information of the receiving equipment;

and calculating the charging efficiency of the unit effective charging resources of the transmitting equipment to the receiving equipment in the state according to the charging state information.

With reference to the fourth possible implementation manner of the first aspect, in a fifth possible implementation manner, the calculating, according to the charging status information, a charging efficiency of a unit effective charging resource of the transmitting device to the receiving device in the status includes:

changing an effective charging resource allocated to the receiving device;

and calculating the charging efficiency of the unit effective charging resource of the transmitting equipment to the receiving equipment in the state according to the change of the charging state information of the receiving equipment before and after the change.

With reference to the first aspect, in a sixth possible implementation manner, the method further includes:

transmitting the charging efficiency distribution.

With reference to the first aspect, in a seventh possible implementation manner, the method further includes:

and sending a request for acquiring the state information.

With reference to the second possible implementation manner of the first aspect, in an eighth possible implementation manner, the state information further includes: a speed of the receiving device.

With reference to the first possible implementation manner of the first aspect, in a ninth possible implementation manner, the charging resource includes at least one of: antenna, time frequency resource.

In a second aspect, an embodiment of the present invention provides a wireless charging method, where the method includes:

obtaining a charging efficiency distribution of at least one wireless energy transmitting device;

and formulating a wireless charging strategy according to the charging efficiency distribution of the at least one wireless energy transmitting device.

With reference to the second aspect, in a first possible implementation manner, the charging efficiency distribution is a distribution of charging efficiencies of a unit effective charging resource of the transmitting device to receiving devices in different states in a charging coverage area of the transmitting device.

With reference to the first possible implementation manner of the second aspect, in a second possible implementation manner, the method further includes:

and carrying out wireless charging according to the strategy.

With reference to the first possible implementation manner of the second aspect, in a third possible implementation manner, the method further includes:

and prompting according to the strategy.

With reference to the second or third possible implementation manner of the second aspect, in a fourth possible implementation manner, the formulating a wireless charging policy according to the charging efficiency distribution of the at least one wireless energy transmitting device includes:

selecting a transmitting device according to the charging efficiency distribution of the at least one wireless energy transmitting device.

With reference to the second or third possible implementation manner of the second aspect, in a fifth possible implementation manner, the formulating a wireless charging policy according to the charging efficiency distribution of the at least one wireless energy transmitting device includes:

adjusting a state of a wireless energy receiving device according to the charging efficiency distribution of the at least one wireless energy transmitting device.

With reference to the fifth possible implementation manner of the second aspect, in a sixth possible implementation manner, the status includes a position and/or a speed of the receiving device.

With reference to the second or third possible implementation manner of the second aspect, in a seventh possible implementation manner, the method further includes:

displaying the charging efficiency distribution.

With reference to any one of the second to seventh possible implementation manners of the second aspect, in an eighth possible implementation manner, the formulating a wireless charging policy according to the charging efficiency distribution of the at least one wireless energy transmitting device includes:

and formulating a wireless charging strategy according to the charging efficiency distribution of at least two wireless energy transmitting devices.

With reference to the eighth possible implementation manner of the second aspect, in a ninth possible implementation manner, the method further includes:

merging the charging efficiency profiles of the at least two wireless energy transmitting devices.

With reference to the ninth possible implementation manner of the second aspect, in a tenth possible implementation manner, the method further includes:

displaying a charging efficiency profile of the merged at least two wireless energy transmitting devices.

With reference to the tenth possible implementation manner of the second aspect, in an eleventh possible implementation manner, the method further includes:

a request to obtain status information of a wireless energy receiving device is received.

With reference to the tenth possible implementation manner of the second aspect, in a twelfth possible implementation manner, the method further includes:

transmitting status information of the wireless energy receiving device.

With reference to the twelfth possible implementation manner of the second aspect, in a thirteenth possible implementation manner, the state information includes location information and charging state information of the receiving device.

With reference to the thirteenth possible implementation manner of the second aspect, in a fourteenth possible implementation manner, the charge state information includes at least one of the following: charging current, charging voltage, charging power, remaining charging time.

With reference to the fourteenth possible implementation manner of the second aspect, in a fifteenth possible implementation manner, the state information further includes: a speed of the receiving device.

With reference to the first possible implementation manner of the second aspect, in a sixteenth possible implementation manner, the charging resource includes at least one of: antenna, time frequency resource.

In a third aspect, an embodiment of the present invention provides a wireless charging apparatus, where the apparatus includes:

the first acquisition module is used for acquiring the state information of the wireless energy receiving equipment;

and the charging efficiency distribution generating module is used for obtaining the charging efficiency distribution of the wireless energy transmitting equipment according to the state information.

With reference to the third aspect, in a first possible implementation manner, the charging efficiency distribution generating module includes:

the statistic unit is used for counting the charging coverage area of the transmitting equipment according to the position information of the receiving equipment;

and the charging efficiency calculation unit is used for calculating the charging efficiency of the unit effective charging resources of the transmitting equipment to the receiving equipment in the state according to the charging state information.

With reference to the first possible implementation manner of the third aspect, in a second possible implementation manner, the charging efficiency calculating unit includes:

an allocation subunit for changing the available charging resources allocated to the receiving device;

and the calculating subunit is used for calculating the charging efficiency of the unit effective charging resource of the transmitting equipment to the receiving equipment in the state according to the change of the charging state information of the receiving equipment before and after the change.

With reference to the third aspect, in a third possible implementation manner, the apparatus further includes:

a first sending module, configured to send the charging efficiency distribution.

With reference to the first possible implementation manner of the third aspect, in a fourth possible implementation manner, the first sending module is further configured to send a request for obtaining the state information.

In a fourth aspect, the present invention provides a wireless charging apparatus, the apparatus comprising:

the second acquisition module is used for acquiring the charging efficiency distribution of at least one wireless energy transmitting device;

and the strategy making module is used for making a wireless charging strategy according to the charging efficiency distribution of the at least one wireless energy transmitting device.

With reference to the fourth aspect, in a first possible implementation manner, the apparatus further includes:

and the charging module is used for carrying out wireless charging according to the strategy.

With reference to the fourth aspect, in a second possible implementation manner, the apparatus further includes:

and the prompting module is used for prompting according to the strategy.

With reference to the first or second possible implementation manner of the fourth aspect, in a third possible implementation manner, the policy making module includes:

a selection unit for selecting the transmitting device according to the charging efficiency distribution of the at least one wireless energy transmitting device.

With reference to the first or second possible implementation manner of the fourth aspect, in a fourth possible implementation manner, the policy making module includes:

and the adjusting unit is used for adjusting the state of the wireless energy receiving equipment according to the charging efficiency distribution of the at least one wireless energy transmitting equipment.

With reference to the first or second possible implementation manner of the fourth aspect, in a fifth possible implementation manner, the apparatus further includes:

and the display module is used for displaying the charging efficiency distribution.

With reference to the fifth possible implementation manner of the fourth aspect, in a sixth possible implementation manner, the policy making module makes the wireless charging policy according to charging efficiency distributions of at least two wireless energy transmitting devices.

With reference to the sixth possible implementation manner of the fourth aspect, in a seventh possible implementation manner, the apparatus further includes:

a processing module for merging the charging efficiency profiles of the at least two wireless energy transmitting devices.

With reference to the seventh possible implementation manner of the fourth aspect, in an eighth possible implementation manner, the display module displays a combined charging efficiency distribution of the at least two wireless energy transmitting devices.

With reference to the fourth aspect, in a ninth possible implementation manner, the apparatus further includes:

a receiving module, configured to receive a request for obtaining status information of a wireless energy receiving device.

With reference to the fourth aspect, in a tenth possible implementation manner, the apparatus further includes:

and the second sending module is used for sending the state information of the wireless energy receiving equipment.

The method and the device of the embodiment of the invention obtain the charging efficiency distribution of the transmitting equipment according to the state information of the receiving equipment, and can provide reference for obtaining the optimal charging efficiency of wireless charging.

Drawings

Fig. 1 is a flowchart of a first wireless charging method according to an embodiment of the present invention;

fig. 2 is a flowchart of a second wireless charging method according to an embodiment of the present invention;

fig. 3 is a block diagram of a wireless charging device according to an embodiment of the present invention;

fig. 4 is a block diagram of a charging efficiency distribution generating module in a wireless charging device according to an embodiment of the present invention;

FIG. 5 is a block diagram of one embodiment of the wireless charging device shown in FIG. 3;

fig. 6 is a block diagram of another wireless charging device according to an embodiment of the present invention;

fig. 7 is a block diagram of a policy making module in the wireless charging apparatus shown in fig. 6;

FIG. 8 is a block diagram of one embodiment of the wireless charging device shown in FIG. 6;

fig. 9 is a block diagram showing the structure of a second embodiment of the wireless charging apparatus shown in fig. 6;

fig. 10 is a block diagram showing the structure of a third embodiment of the wireless charging apparatus shown in fig. 6;

fig. 11 is a block diagram showing the configuration of a fourth embodiment of the wireless charging apparatus shown in fig. 6;

fig. 12 is a block diagram illustrating a fifth embodiment of the wireless charging apparatus shown in fig. 6;

fig. 13 is a block diagram showing a sixth embodiment of the wireless charging apparatus shown in fig. 6;

FIGS. 14(a) -14 (b) are schematic diagrams illustrating an exemplary application of the method and apparatus according to the embodiments of the present invention;

fig. 15 is a block diagram of a third wireless charging device according to an embodiment of the invention;

fig. 16 is a block diagram of a fourth wireless charging device according to an embodiment of the invention.

Detailed Description

The following detailed description of embodiments of the invention is provided in connection with the accompanying drawings (like numerals represent like elements throughout the several views) and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In various embodiments of the present invention, a wireless energy transmitting device (also referred to as a transmitting device) refers to any suitable device capable of providing wireless energy; a wireless energy receiving device (also referred to as a receiving device) refers to any suitable device that can be charged by received wireless energy; also, the transmitting device may be a receiving device, and the receiving device may be a transmitting device.

As shown in fig. 1, a wireless charging method provided in an embodiment of the present invention includes:

and S110, acquiring the state information of the wireless energy receiving equipment.

In the embodiment of the present invention, the status information includes the location information and the charging status information of the receiving device, and may further include the current speed (including the stationary condition of the speed being zero) of the receiving device, and the like; the charge state information may include at least one of: charging current, charging voltage, charging power, remaining charging time. Furthermore, since one wireless energy transmitting device may charge a plurality of receiving devices within its chargeable range, the status information acquired in this step includes the possibility from one receiving device and also the possibility from a plurality of receiving devices, and the status information from one receiving device may include: status information of the receiving device at different times, different locations (which may include the possibility of the same or not all of the same or all of the different speeds); the status information from the plurality of receiving devices may include: status information at the same or different times, different locations (which may include the possibility of speeds that are the same or not all the same or all the different), and so forth. The status information of the receiving device should be sufficient to provide a data basis for subsequently obtaining a charging efficiency profile for the corresponding transmitting device. In the wireless charging process, the transmitting device and the receiving device perform data communication in addition to the transmission of wireless energy, for example, the transmitting device receives charging feedback information from the receiving device to which it is charged, so that, according to the difference of the main body implementing the method of the embodiment of the present invention, the status information acquired in step S110 may be from the charging feedback received by the transmitting device by the receiving device, or may be directly from the receiving device, and the information may be transmitted in any manner known in the art, which is not limited herein.

And S120, obtaining the charging efficiency distribution of the wireless energy transmitting equipment according to the state information.

In the method of the embodiment of the present invention, the charging efficiency distribution is a distribution of a unit effective charging resource of a transmitting device to charging efficiencies of receiving devices in different states in a charging coverage area of the transmitting device. The charging efficiency distribution is not limited to only a distribution of charging efficiencies of specific values, but may also be a distribution of different charging efficiency ranges, or a distribution of different charging efficiency levels, or the like. In particular, an effective charging resource may refer to a resource that can be actually used for transmitting wireless energy for a corresponding receiving device among charging resources allocated to the receiving device (e.g., a tuned charging resource that transmits wireless energy to the receiving device). According to different wireless charging principles, the charging resources can refer to any resources such as antennas, phase-adjustable arrays, time-frequency resources and the like which can be used for transmitting wireless energy to receiving equipment in the wireless charging process. In the method of the embodiment of the present invention, the charging efficiency distribution of the transmitting device whose unit effective charging resource has what charging efficiency to the receiving devices of different states (different locations, or different locations and different speeds, or the same location but different speeds) can be provided in the corresponding charging coverage area. For the receiving end, the charging efficiency distribution is a very interesting information, which can help it to know what charging efficiency can be obtained in the area and/or state, so as to provide a reference for obtaining the optimal charging efficiency.

In summary, the method of the embodiment of the present invention obtains the charging efficiency distribution of the transmitting device according to the state information of the receiving device, and can provide a reference for obtaining the optimal charging efficiency.

In the method of the embodiment of the present invention, the obtaining the charging efficiency distribution of the wireless energy transmitting device according to the status information in step S120 may further include:

and S121, counting the charging coverage area of the transmitting equipment according to the position information of the receiving equipment.

Some obstacles may exist in a specific physical environment, such as the range of charging that the transmitting device can realize and the ideal charging coverage range may be different, and the transmitting device can count the actual charging coverage area according to the location information of the receiving device.

And S122, calculating the charging efficiency of the unit effective charging resources of the transmitting equipment to the receiving equipment with the state according to the charging state information.

Since one receiving device may be within the charging coverage area of multiple transmitting devices, that is, one receiving device may be being wirelessly charged by multiple transmitting devices. To obtain the charging efficiency distribution of the transmitting device, the charging efficiency may be calculated by, for example, the following process:

s1221, changing the effective charging resource allocated to the receiving device.

S1222, calculating the charging efficiency of the unit effective charging resource of the transmitting device to the receiving device with the state according to the change of the charging state information of the receiving device before and after the change

For example, for a certain receiving apparatus, assuming that the effective charging resources allocated thereto by the transmitting apparatus are S1, S2 before and after changing, respectively, and the charging powers (charging state information) before and after the changing by the receiving apparatus are P1, P2, respectively, the charging efficiency can be estimated to be (P1-P2)/(S1-S2).

The charging efficiency distribution in the charging coverage area of the transmitting device is finally obtained by counting the charging efficiency of the receiving device under various states (positions and/or speeds). The charging efficiency distribution may be displayed in the form of a map, and according to different implementations, on the charging efficiency distribution map, each point in the coverage area records the charging efficiency of the unit charging resource to the point, and may also record parameters such as the relative position (position coordinates/distance, etc.) of the point and the transmitting device, and the speed corresponding to the charging efficiency. The statistics of the charging efficiency distribution can be implemented in a test mode after the installation and debugging of the transmitting equipment, and can also be implemented in a step-by-step training mode in normal use.

In addition, the method of the embodiment of the invention further comprises the following steps:

and S130, sending the charging efficiency distribution.

The charging efficiency distribution has important guiding significance for the wireless charging process, and after the charging efficiency distribution is obtained, the charging efficiency distribution can be sent to each receiving device and each transmitting device.

It should be noted that, in order to obtain the status information of the receiving device, the method of the embodiment of the present invention may further include a step of actively requesting, that is:

s140, sending a request for acquiring the state information.

In summary, the method of the embodiment of the present invention can accurately obtain the charging efficiency distribution of the transmitting device, and provide a reference for wireless charging of the transmitting terminal and the receiving terminal device, so as to obtain the optimal charging efficiency.

As shown in fig. 2, an embodiment of the present invention further provides another wireless charging method, where the method includes:

s210, obtaining charging efficiency distribution of at least one wireless energy transmitting device.

In the method of the embodiment of the present invention, the charging efficiency distribution is a distribution of charging efficiencies of the unit effective charging resource of the corresponding transmitting device to receiving devices in different states in a charging coverage area of the transmitting device. The charging efficiency distribution is not limited to only a distribution of charging efficiencies of specific values, but may also be a distribution of different charging efficiency ranges, or a distribution of different charging efficiency levels, or the like. In particular, an effective charging resource may refer to a resource that can be actually used for transmitting wireless energy to a corresponding receiving device among charging resources allocated to the receiving device (e.g., a charging resource that has been adjusted to transmit wireless energy to the receiving device). According to different wireless charging principles, the charging resources can refer to any resources such as antennas, time-frequency resources and the like which can be used for transmitting wireless energy to receiving equipment in the wireless charging process. In the method of an embodiment of the present invention, the charging efficiency profile of a wireless energy transmitting device may provide what charging efficiency the transmitting device has for receiving devices in different states (different locations, or different locations and different speeds, or the same location but different speeds) within the charging coverage area of the corresponding transmitting device.

S220, a wireless charging strategy is formulated according to the charging efficiency distribution of the at least one wireless energy transmitting device.

For the receiving end, the charging efficiency distribution is information of great interest, which can help the receiving end to know the located area and/or state and obtain the optimal charging efficiency so as to make better adjustment on the state of the receiving end.

In summary, the method of the embodiment of the present invention formulates a wireless charging strategy according to the charging efficiency distribution of at least one transmitting device, and further obtains an optimal charging efficiency.

In the method of the embodiment of the present invention, step S220 may further include:

s221, selecting transmitting equipment according to the charging efficiency distribution of the at least one wireless energy transmitting equipment. For example, one or more transmitting devices with higher or even highest charging efficiency may be selected according to the distribution of charging efficiency to wirelessly charge the receiving device. Or,

s222, adjusting the state of the wireless energy receiving equipment according to the charging efficiency distribution of the at least one wireless energy transmitting equipment. For example, according to the distribution of the charging efficiency, in order to obtain the highest charging efficiency, the state (position and/or speed) of the receiving apparatus and the like may be adjusted.

In addition, the strategy formulated in step S220 can be used for performing wireless charging or prompting of wireless charging and wireless charging simultaneously. Correspondingly, the method of the embodiment of the invention further comprises the following steps:

and S230, carrying out wireless charging according to the strategy. For example, one or more transmitting devices with higher or even highest charging efficiency are automatically selected to wirelessly charge the receiving device. Or automatically adjust the status of the receiving device, etc.

And S240, prompting according to the strategy. For example, the prompt should select one or more transmitting devices with higher or even highest charging efficiency to wirelessly charge the receiving device. Or to prompt that the status of the receiving device should be adjusted, etc.

In the method of an embodiment of the present invention, the status includes a position and/or a velocity of the receiving device.

In order to obtain optimal charging efficiency through more intuitive and clear understanding of the located area and/or the motion state so as to make a corresponding charging strategy, the method further comprises the following steps:

and S250, displaying the charging efficiency distribution of the at least one transmitting device. For example, the charging efficiency distribution is displayed in the form of a map, and the corresponding charging efficiency may be displayed or triggered to be displayed at each point (location) on the charging efficiency distribution map, and parameters such as a relative location (location coordinates/distance, etc.) of the point and the transmitting device, a speed corresponding to the charging efficiency, and the like may also be displayed or triggered to be displayed.

It should be noted that, when the number of the transmitting devices exceeds one, the corresponding charging efficiency distributions may be displayed, and the charging strategy may be formulated according to one or more of the charging efficiency distributions. The charging efficiency distributions of a plurality of transmitting devices can also be combined, and a wireless charging strategy is formulated according to the combined charging efficiency distributions. Correspondingly, the method of the embodiment of the invention further comprises the following steps:

and S260, combining the charging efficiency distribution of the at least two wireless energy transmitting devices. Including merging coverage areas and charging efficiency: enlarging the coverage area, and superimposing the charging efficiency in the overlapping coverage area (not limited thereto). And the number of the first and second groups,

and S270, displaying the combined charging efficiency distribution of the at least two wireless energy transmitting devices.

According to the generation principle of the charging efficiency distribution, the method of the embodiment of the present invention may further include:

s280, receiving a request for acquiring the state information of the wireless energy receiving equipment.

The state information includes position information and charging state information of the receiving device, and may also include the current speed of the receiving device (including a static condition with zero speed) and the like; the charge state information may include at least one of: charging current, charging voltage, charging power, remaining charging time. Furthermore, since one wireless energy transmitting device may charge a plurality of receiving devices within its chargeable range, the status information requested in this step includes the possibility of requesting status information from one receiving device as well as the possibility of requesting status information of a plurality of receiving devices. The status information of a receiving device may include: status information of the receiving device at different times, different locations (which may include the possibility of the same or not all of the same or all of the different speeds); the status information of the plurality of receiving devices may include: status information at the same or different times, different locations (which may include the possibility of speeds that are the same or not all the same or all the different), and so forth.

In addition, in response to the request of step S280 or automatically triggered, the method of the embodiment of the present invention may further include:

and S290, sending the state information of the wireless energy receiving equipment.

The transmitted status information of the wireless energy receiving device may be used to provide a data basis for generation of the charging efficiency profile. Generally, in the wireless charging process, the transmitting device receives charging feedback information from the receiving device to which it is charged, and the communication mode of the transmitting device and the receiving device may adopt any mode known in the art, and according to the difference of the main body implementing the method according to the embodiment of the present invention, the status information sent in step S290 may be feedback from the receiving device to the transmitting device, and the communication mode for implementing information interaction may be any mode known in the art, which is not limited herein to the technical solution of the present invention.

In summary, the method of the embodiment of the present invention can obtain the optimal charging efficiency according to the charging efficiency distribution of at least one transmitting device, and can visually and clearly display the charging efficiency distribution, thereby having good user experience.

It is understood by those skilled in the art that, in the above method according to the embodiment of the present invention, the sequence number of each step does not mean the execution sequence, and the execution sequence of each step should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiment of the present invention.

The embodiment of the invention also provides a wireless charging device, which can be a part of the wireless energy transmitting equipment or a device independent of the wireless energy transmitting equipment. As shown in fig. 3, the wireless charging device 300 includes:

a first obtaining module 310 is configured to obtain status information of the wireless energy receiving device.

In the embodiment of the present invention, the status information includes the location information and the charging status information of the receiving device, and may further include the current speed (including the stationary condition of the speed being zero) of the receiving device, and the like; the charge state information may include at least one of: charging current, charging voltage, charging power, remaining charging time. In addition, since one wireless energy receiving device may charge a plurality of receiving devices within a chargeable range thereof, the status information acquired by the information acquiring module 310 includes a possibility from one receiving device and also includes a possibility from a plurality of receiving devices, and the status information from one receiving device may include: status information of the receiving device at different times, different locations (which may include the possibility of the same or not all of the same or all of the different speeds); the status information from the plurality of receiving devices may include: status information at the same or different times, different locations (which may include the possibility of speeds that are the same or not all the same or all the different), and so forth. The status information of the receiving device should be sufficient to provide a data basis for subsequently obtaining a charging efficiency profile for the corresponding transmitting device. In the wireless charging process, the transmitting device and the receiving device perform data communication in addition to the transmission of wireless energy, for example, the transmitting device receives charging feedback information from the receiving device to which it is charged, so according to the difference of the main body implementing the method of the embodiment of the present invention, the status information acquired by the information acquiring module 310 may be from the charging feedback received by the transmitting device by the receiving device, or may be directly from the receiving device, and the information may be transmitted in any manner known in the art, which is not limited herein.

A charging efficiency distribution generating module 320, configured to obtain charging efficiency distribution of the wireless energy transmitting device according to the state information.

In the apparatus of the embodiment of the present invention, the charging efficiency distribution is a distribution of a unit effective charging resource of a transmitting device to charging efficiencies of receiving devices in different states in a charging coverage area of the transmitting device. The charging efficiency distribution is not limited to only a distribution of charging efficiencies of specific values, but may also be a distribution of different charging efficiency ranges, or a distribution of different charging efficiency levels, or the like. In particular, an active charging resource may refer to an active charging resource (e.g., a tuned charging resource that transmits wireless energy to a receiving device). According to different wireless charging principles, the charging resources can refer to any resources such as antennas, phase-adjustable arrays, time-frequency resources and the like which can be used for transmitting wireless energy to receiving equipment in the wireless charging process. In the apparatus of the embodiment of the present invention, the charging efficiency distribution of the transmitting device whose unit effective charging resource has what charging efficiency to the receiving devices of different states (different locations, or different locations and different speeds, or the same location but different speeds) can be provided in the corresponding charging coverage area. For the receiving end, the charging efficiency distribution is a very interesting information, which can help it to know what charging efficiency can be obtained in the area and/or state, so as to provide a reference for obtaining the optimal charging efficiency.

In summary, the apparatus according to the embodiment of the present invention obtains the charging efficiency distribution of the transmitting device according to the state information of the receiving device, and can provide a reference for obtaining the optimal charging efficiency.

As shown in fig. 4, in the apparatus 300 according to the embodiment of the present invention, the charging efficiency distribution generating module 320 may further include:

a counting unit 321, configured to count a charging coverage area of the transmitting device according to the location information of the receiving device.

A charging efficiency calculating unit 322, configured to calculate, according to the charging status information, charging efficiency of a unit effective charging resource of the transmitting device to a receiving device having the status.

Since one receiving device may be within the charging coverage area of multiple transmitting devices, that is, one receiving device may be being wirelessly charged by multiple transmitting devices. In order to obtain the charging efficiency distribution of the transmitting device, the charging efficiency calculation unit 322 further includes:

an allocation subunit 3221 is configured to change the effective charging resource allocated to the receiving device.

A calculating subunit 3222, configured to estimate, according to a change in the charging state information of the receiving device before and after the change, charging efficiency of the receiving device having the state for a unit effective charging resource of the transmitting device.

For example, assuming that the effective charging resources allocated to a certain receiving device before and after the change are S1 and S2, respectively, and the charging powers (charging states) before and after the change by the receiving device are P1 and P2, respectively, the charging efficiency per effective charging resource to the receiving device having the state can be calculated as (P1-P2)/(S1-S2).

And finally, obtaining the charging efficiency distribution in the charging coverage area of the transmitting equipment by counting the charging efficiency of the receiving equipment in multiple states. The charging efficiency distribution may be displayed in the form of a map, and according to different implementations, on the charging efficiency distribution map, each point in the coverage area records the charging efficiency of the unit charging resource to the point, and may also record parameters such as the relative position (position coordinates/distance, etc.) of the point and the transmitting device, and the speed corresponding to the charging efficiency. The statistics of the charging efficiency distribution can be implemented in a test mode after the installation and debugging of the transmitting equipment, and can also be implemented in a step-by-step training mode in normal use.

In addition, as shown in fig. 5, the apparatus 300 according to the embodiment of the present invention may further include:

a first sending module 330, configured to send the charging efficiency distribution obtained by the charging efficiency distribution generating module 320.

The charging efficiency distribution has a very important guiding significance for the wireless charging process, and after the charging efficiency distribution is obtained, the sending module 330 can send the charging efficiency distribution to each receiving device and each transmitting device.

It should be noted that, in order to obtain the status information of the receiving device, the apparatus 300 of the embodiment of the present invention may further send an active request, that is: the sending module 330 is further configured to send a request for obtaining the status information. The request may be sent directly to the receiving device or to a third party device that may obtain the status information of the receiving device.

In summary, the device of the embodiment of the present invention can accurately obtain the charging efficiency distribution of the transmitting device, and provide a reference for wireless charging of the transmitting terminal and the receiving terminal device, so as to obtain the optimal charging efficiency.

As shown in fig. 6, another wireless charging apparatus 600 is provided in the embodiments of the present invention, and the apparatus 600 may be a part of the receiving device or a third-party device independent of the receiving device. As shown in fig. 6, the apparatus 600 includes:

a second obtaining module 610, configured to obtain a charging efficiency distribution of at least one wireless energy transmitting device.

In the apparatus of the embodiment of the present invention, the charging efficiency distribution is a distribution of charging efficiencies of the unit effective charging resource of the corresponding transmitting device to receiving devices in different states in a charging coverage area of the transmitting device. The charging efficiency distribution is not limited to only a distribution of charging efficiencies of specific values, but may also be a distribution of different charging efficiency ranges, or a distribution of different charging efficiency levels, or the like. In particular, a unit of active charging resources may refer to active charging resources (e.g., charging resources that have been adjusted to transmit wireless energy to a receiving device). According to different wireless charging principles, the charging resources can refer to any resources such as antennas, time-frequency resources and the like which can be used for transmitting wireless energy to receiving equipment in the wireless charging process. In the apparatus of the embodiment of the present invention, the charging efficiency distribution of the wireless energy transmitting devices can provide what charging efficiency the transmitting devices have for receiving devices in different states (different locations, or different locations and different speeds, or the same location but different speeds) within the charging coverage area of the corresponding transmitting devices.

A policy making module 620, configured to make a wireless charging policy according to the charging efficiency distribution of the at least one wireless energy transmitting device.

To sum up, the device of the embodiment of the invention formulates a wireless charging strategy according to the charging efficiency distribution of at least one transmitting device, and further obtains the optimal charging efficiency.

As shown in fig. 7, in the apparatus according to the embodiment of the present invention, the policy making module 620 may further include:

a selecting unit 621 configured to select a transmitting device according to the charging efficiency distribution of the at least one wireless energy transmitting device. For example, one or more transmitting devices with higher or even highest charging efficiency may be selected according to the distribution of charging efficiency to wirelessly charge the receiving device. Or,

an adjusting unit 622, configured to adjust a state of the wireless energy receiving device according to the charging efficiency distribution of the at least one wireless energy transmitting device. For example, according to the distribution of the charging efficiency, in order to obtain the highest charging efficiency, the state (position and/or speed) of the receiving apparatus and the like may be adjusted.

In addition, the policy formulated by the policy formulation module 620 may be used for performing wireless charging or prompting of wireless charging or wireless charging and prompting of wireless charging at the same time. Accordingly, as shown in fig. 8, the apparatus of the embodiment of the present invention further includes:

a charging module 630, configured to perform wireless charging according to the policy. For example, one or more transmitting devices with higher or even highest charging efficiency are automatically selected to wirelessly charge the receiving device. Or automatically adjust the status of the receiving device, etc.

Or as shown in fig. 9, the apparatus according to the embodiment of the present invention further includes:

and the prompting unit 640 is used for prompting according to the strategy. For example, the prompt should select one or more transmitting devices with higher or even highest charging efficiency to wirelessly charge the receiving device. Or to prompt that the status of the receiving device should be adjusted, etc. And the prompting mode can be a voice mode and/or a visual mode and the like.

In an apparatus of an embodiment of the invention, the status comprises a position and/or a speed of the receiving device.

In order to obtain the optimal charging efficiency for more intuitively and clearly understanding the located area and/or the motion state, so as to make a corresponding charging strategy, as shown in fig. 10, the apparatus 600 of the embodiment of the present invention may further include:

a display module 650 for displaying the at least one transmitting device charging efficiency distribution. For example, the charging efficiency distribution may be displayed in the form of a map, the corresponding charging efficiency may be displayed or triggered to be displayed at each point (location) on the charging efficiency distribution map, and parameters such as a relative location (location coordinates/distance, etc.) of the point and the transmitting device, a speed corresponding to the charging efficiency, etc. may also be displayed or triggered to be displayed, and the display module 650 may be formed by a display device of the receiving device.

It should be noted that, when the number of the transmitting devices exceeds one, the corresponding charging efficiency distributions may be displayed, and the charging strategy may be formulated according to one or more of the charging efficiency distributions. The charging efficiency distributions of a plurality of transmitting devices can also be combined, and a wireless charging strategy is formulated according to the combined charging efficiency distributions. Accordingly, as shown in fig. 11, the apparatus 600 of the embodiment of the present invention further includes:

a processing module 660 configured to combine the charging efficiency profiles of the at least two wireless energy transmitting devices. Including merging coverage areas and charging efficiency: enlarging the coverage area, and superimposing the charging efficiency in the overlapping coverage area (not limited thereto). And at this time,

the display module 650 may display the combined charging efficiency profiles of the at least two wireless energy transmitting devices.

According to the principle of generating the charging efficiency distribution, as shown in fig. 12, the apparatus 600 of the embodiment of the present invention may further include:

a receiving module 670, configured to receive a request for obtaining status information of a wireless energy receiving device.

The state information includes position information and charging state information of the receiving device, and may also include the current speed of the receiving device (including a static condition with zero speed) and the like; the charge state information may include at least one of: charging current, charging voltage, charging power, remaining charging time. Furthermore, since one wireless energy receiving device may charge a plurality of receiving devices within its chargeable range, the status information requested by the request received by the receiving module 670 includes the possibility of requesting status information from one receiving device and also includes the possibility of requesting status information of a plurality of receiving devices. The status information of a receiving device may include: status information of the receiving device at different times, different locations (which may include the possibility of the same or not all of the same or all of the different speeds); the status information of the plurality of receiving devices may include: status information at the same or different times, different locations (which may include the possibility of speeds that are the same or not all the same or all the different), and so forth. The status information of the receiving device should be sufficient to provide a data basis for subsequently obtaining a charging efficiency profile for the corresponding transmitting device.

In addition, in response to the request received by the receiving module 670 or automatically triggered, as shown in fig. 13, the apparatus 600 of the embodiment of the present invention may further include:

the second sending module 680 is configured to send status information of the wireless energy receiving device.

The status information of the wireless energy receiving device transmitted by the second transmitting module 680 may be used to provide a data basis for the generation of the charging efficiency profile. Generally, in the wireless charging process, the transmitting device receives charging feedback information from the receiving device to which the transmitting device is charged, and the communication mode of the transmitting device and the receiving device may adopt any mode known in the art, and according to the difference of the main body implementing the method according to the embodiment of the present invention, the status information sent by the second sending module 680 may be feedback from the receiving device to the transmitting device, and the communication mode for implementing information interaction may be any mode known in the art, which is not limited herein to the technical solution of the present invention.

In summary, the device of the embodiment of the invention can obtain the optimal charging efficiency according to the charging efficiency distribution of at least one transmitting device, and can visually and clearly display the charging efficiency distribution, thereby having good user experience.

The methods and apparatus of the various embodiments of the present invention are further described below by way of specific examples.

As shown in fig. 14(a) and 12 (b), taking one transmitting device TXA and two receiving devices RX1, RX2 in a charging coverage area of the transmitting device TXA as an example, the receiving devices RX1, RX2 may be any devices having a display function, such as smart wearable devices, mobile phones, laptops, vehicle-mounted devices, and the like. Within the charging coverage area of the transmitting device TXA, the receiving devices RX1, RX2 are currently receiving wireless energy transmitted by the transmitting device TXA using the wireless charging service of the transmitting device TXA. The transmitting device TXA is also in data communication with RX1, RX2 during the transfer of wireless energy with the receiving devices RX1, RX 2. The receiving devices RX1, RX2 respectively respond to the request of the transmitting device TXA or automatically (periodically) feed back the motion state information and the charging state information when they are charged to the transmitting device TXA. The transmitting device TXA generates a charging efficiency distribution according to the received information (including information sent by other receiving devices) by the method of the embodiment of the invention, and sends the charging efficiency distribution to the receiving devices RX1, RX2, RX1 and RX2, and displays the charging coverage area of the transmitting device TXA and the charging efficiency distribution in the area on a display module of the receiving device RX1, RX2, RX1 and RX2 in the form of a map, so as to assist a user in adjusting the wireless charging mode. As shown in fig. 14(a), the position of the transmitting device TXA is shown on the receiving device RX1, the speed of the receiving device RX1 itself (0), the position of the receiving device RX1 within the charging coverage area of the transmitting device TXA (distance is 7m, direction information is not shown in fig. 14(a), but it can also be shown), the number of resources allocated to the receiving device RX1 by the receiving device TXA is 2000 units, and the adjusted effective charging resource is 1200 units. When a certain position on the coverage area is touched or clicked, the resource allocation condition, the corresponding speed and the charging efficiency (in this example, the charging efficiency is divided into three types, namely high efficiency, medium efficiency and low efficiency) at the position are displayed. As shown in fig. 14(a), the receiving device RX1 is located in an efficient charging area of the transmitting device TXA, and the receiving device RX1 may or may not adjust the wireless charging strategy according to this charging efficiency profile. Accordingly, as shown in fig. 14(b), the position of the transmitting device TXA, the speed of RX2 itself (1 m/s), the position of RX2 in the charging coverage area of the transmitting device TXA (distance is 6m, direction information is not shown in fig. 14(b), but it can be displayed), the number of charging resources allocated to the receiving device RX2 by the receiving device TXA is 1000 units, the adjusted effective charging resource is 800 units, and when a certain position on the coverage area is touched or clicked, the allocation, speed and charging efficiency of the corresponding charging resource are displayed on the receiving device RX 2. As shown in fig. 12 (b), the receiving device RX2 is located in an inefficient charging area of the transmitting device TXA, and the receiving device RX2 may or may not adjust the wireless charging strategy according to this charging efficiency profile.

The situation is similar to the situation in which the receiving device is capable of receiving wireless energy of multiple transmitting devices, except that the charging coverage area of each transmitting device or at least a part of the combined charging coverage area and the charging efficiency distribution situation in the area can be displayed on the display module of the receiving device.

Fig. 15 is a schematic structural diagram of a third wireless charging device 1500 according to an embodiment of the present invention, and the embodiment of the present invention does not limit the specific implementation of the wireless charging device 1500. As shown in fig. 15, the wireless charging device 150 may include:

a processor (processor)1510, a communication Interface 1520, a memory 1530, and a communication bus 1540. Wherein:

the processor 1510, communication interface 1520, and memory 1530 communicate with each other via a communication bus 1540.

A communication interface 1520 for communicating with network elements such as clients and the like.

The processor 1510 is configured to execute the program 1532, and may specifically implement the related functions of the wireless charging apparatus in the embodiment of the apparatus shown in fig. 3.

In particular, the program 1532 may include program code comprising computer operating instructions.

The processor 1510 may be a central processing unit CPU, or an Application Specific Integrated Circuit (ASIC), or one or more Integrated circuits configured to implement embodiments of the present invention.

And a memory 1530 for storing a program 1532. Memory 1530 may comprise high-speed RAM memory, and may also include non-volatile memory (non-volatile memory), such as at least one disk memory. The program 1532 may specifically perform the following steps:

acquiring state information of wireless energy receiving equipment;

Fig. 16 is a schematic structural diagram of a fourth wireless charging device 1600 according to an embodiment of the present invention, and the embodiment of the present invention does not limit the specific implementation of the wireless charging device 1600. As shown in fig. 16, the wireless charging device 160 may include:

a processor (processor)1610, a Communications Interface (Communications Interface)1620, a memory (memory)1630, and a communication bus 1640. Wherein:

processor 1610, communication interface 1620, and memory 1630 communicate with one another via a communication bus 1640.

A communication interface 1620 for communicating with network elements such as clients and the like.

The processor 1610 is configured to execute the program 1632, and may specifically implement the functions of the wireless charging device in the device embodiments shown in fig. 6 to 13.

In particular, program 1632 may include program code that includes computer operating instructions.

Processor 1610 may be a central processing unit CPU or an application specific Integrated circuit asic or one or more Integrated circuits configured to implement embodiments of the invention.

A memory 1630 for storing programs 1632. The memory 1630 may comprise high-speed RAM memory, and may also include non-volatile memory (e.g., at least one disk memory). The program 1632 may specifically execute the following steps:

While the subject matter described herein is provided in the general context of execution in conjunction with the execution of an operating system and application programs on a computer system, those skilled in the art will recognize that other implementations may also be performed in combination with other types of program modules. Generally, program modules include routines, programs, components, data structures, and other types of structures that perform particular tasks or implement particular abstract data types. Those skilled in the art will appreciate that the subject matter described herein may be practiced with other computer system configurations, including hand-held devices, multiprocessor systems, microprocessor-based or programmable consumer electronics, minicomputers, mainframe computers, and the like, as well as distributed computing environments where tasks are performed by remote processing devices that are linked through a communications network. In a distributed computing environment, program modules may be located in both local and remote memory storage devices.

Those of ordinary skill in the art will appreciate that the various illustrative elements and method steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to perform all or part of the steps of the method according to the embodiments of the present invention. Such computer-readable storage media include physical volatile and nonvolatile, removable and non-removable media implemented in any manner or technology for storage of information such as computer-readable instructions, data structures, program modules or other data. The computer-readable storage medium specifically includes, but is not limited to, a USB flash disk, a removable hard disk, a Read-only Memory (ROM), a Random Access Memory (RAM), an erasable programmable Read-only Memory (EPROM), an electrically erasable programmable Read-only Memory (EEPROM), flash Memory or other solid state Memory technology, a CD-ROM, a Digital Versatile Disk (DVD), an HD-DVD, a Blu-Ray or other optical storage, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer.

The above embodiments are only for illustrating the invention and are not to be construed as limiting the invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention, therefore, all equivalent technical solutions also belong to the scope of the invention, and the scope of the invention is defined by the claims.

Claims

1. A wireless charging method, the method comprising:

acquiring state information of wireless energy receiving equipment;

acquiring charging efficiency distribution of the wireless energy transmitting equipment according to the state information;

wherein the charging efficiency distribution is the distribution of the charging efficiency of the unit effective charging resource of the transmitting device to the receiving devices in different states in the charging coverage area of the transmitting device;

the state information includes position information of the reception apparatus, charge state information, and a speed of the reception apparatus.

2. The method of claim 1, wherein the charge status information comprises at least one of: charging current, charging voltage, charging power, remaining charging time.

3. The method of claim 1, wherein obtaining a charging efficiency profile for a wireless energy transmitting device from the status information comprises:

4. The method of claim 3, wherein said calculating an efficiency of charging the receiving device of the state per unit of available charging resources of the transmitting device based on the charging state information comprises:

changing an effective charging resource allocated to the receiving device;

5. The method of claim 1, further comprising:

transmitting the charging efficiency distribution.

6. The method of claim 1, further comprising:

and sending a request for acquiring the state information.

7. The method of claim 1, wherein the charging resource comprises at least one of: antenna, time frequency resource.

8. A wireless charging method, the method comprising:

formulating a wireless charging strategy according to the charging efficiency distribution of the at least one wireless energy transmitting device;

wherein the charging efficiency distribution is distribution of charging efficiency of a unit effective charging resource of the transmitting device to receiving devices in different states in a charging coverage area of the transmitting device.

9. The method of claim 8, further comprising:

and carrying out wireless charging according to the strategy.

10. The method of claim 8, further comprising:

and prompting according to the strategy.

11. The method according to claim 9 or 10, wherein said formulating a wireless charging strategy according to the charging efficiency profile of the at least one wireless energy transmitting device comprises:

12. The method according to claim 9 or 10, wherein said formulating a wireless charging strategy according to the charging efficiency profile of the at least one wireless energy transmitting device comprises:

13. The method of claim 12, wherein the status comprises a position and/or a velocity of the receiving device.

14. The method according to claim 9 or 10, characterized in that the method further comprises:

displaying the charging efficiency distribution.

15. The method of claim 9, wherein the formulating a wireless charging strategy according to the charging efficiency profile of the at least one wireless energy transmitting device comprises:

16. The method of claim 15, further comprising:

17. The method of claim 16, further comprising:

18. The method of claim 8, further comprising:

19. The method of claim 8, further comprising:

transmitting status information of the wireless energy receiving device.

20. The method of claim 19, wherein the status information comprises location information and charging status information of the receiving device.

21. The method of claim 20, wherein the charging status information comprises at least one of: charging current, charging voltage, charging power, remaining charging time.

22. The method of claim 21, wherein the status information further comprises: a speed of the receiving device.

23. The method of claim 8, wherein the charging resource comprises at least one of: antenna, time frequency resource.

24. A wireless charging apparatus, the apparatus comprising:

the charging efficiency distribution generation module is used for obtaining the charging efficiency distribution of the wireless energy transmitting equipment according to the state information;

the state information includes position information of the receiving device, charging state information, and a speed of the receiving device;

the charging efficiency distribution generation module includes:

25. The apparatus of claim 24, wherein the efficiency calculation unit comprises:

and the calculating subunit is used for calculating the charging efficiency of the unit effective charging resource of the transmitting equipment to the receiving equipment in the state according to the change of the state information of the receiving equipment before and after the change.

26. The apparatus of claim 24, further comprising:

27. The apparatus of claim 26, wherein the first sending module is further configured to send a request for obtaining the status information.

28. A wireless charging apparatus, the apparatus comprising:

a strategy formulation module for formulating a wireless charging strategy according to the charging efficiency distribution of the at least one wireless energy transmitting device;

29. The apparatus of claim 28, further comprising:

30. The apparatus of claim 28, further comprising:

and the prompting module is used for prompting according to the strategy.

31. The apparatus of claim 29 or 30, wherein the policy making module comprises:

32. The apparatus of claim 29 or 30, wherein the policy making module comprises:

33. The apparatus of claim 29 or 30, further comprising:

34. The apparatus of claim 33, wherein the policy making module makes the wireless charging policy according to charging efficiency distribution of at least two wireless energy transmitting devices.

35. The apparatus of claim 34, further comprising:

36. The apparatus of claim 35, wherein the display module displays a charging efficiency profile of the at least two wireless energy transmitting devices combined.

37. The apparatus of claim 28, further comprising:

38. The apparatus of claim 28, further comprising: