Wireless charging method and device

Abstract

The invention provides a wireless charging method and device, aims to reduce resource waste and cost, and relates to the technical field of wireless communication. In the method, a first device receives first reference position information from a third device, the first reference position information being used to indicate a first relative spatial position between a second device and the third device. And the first device controls the second device to move to the first relative spatial position indicated by the first reference position information. The first device controls the second device to emit radio waves, and the radio waves are used for supplying power to the third device. Based on the scheme, the first device can determine the relative spatial position between the second device and the third device through the first reference position information, so that the second device can be controlled to move towards the relative spatial position to charge the third device. Compared with a wireless energy transmission scheme in the related technology, the scheme does not need the second device to carry out positioning and orientation information interaction, so that resource waste can be reduced, and the cost can also be reduced.

Description

Technical Field

[0001] This application relates to the field of wireless communication technology, and in particular to a wireless charging method and apparatus. Background Technology

[0002] Battery-free IoT based on energy harvesting or wireless power transfer technologies offers advantages such as maintenance-free operation, more flexible device size, longer lifespan, and reduced costs. However, wireless power transfer typically requires the energy source to be located near the device being charged, and the received energy decreases significantly with distance. To address this, near-field coupling technology uses large parabolic antenna systems, such as satellite antennas or array antennas, to focus the electromagnetic field. However, this is costly, difficult to implement, and challenging to aim the beam at the device being charged, which is far from the antenna. Furthermore, the power supply and the device being charged cannot move relative to each other during charging.

[0003] To address the pain point that the power supply device and the device being charged cannot move relative to each other during wireless charging energy transfer, a common method is to place the device being charged on the power supply device. In other words, the power supply device is fixed while the device being charged moves. This is used for short-range wireless charging or energy transfer of devices such as mobile phones, wearables, and electric vehicles. The power supply device remains stationary while the device being charged moves to it and waits for it to stabilize before wireless energy transfer. This method is only suitable for applications where the device being charged can be easily moved, and charging requires placing the device on or near the power supply device; it is not truly seamless wireless charging. With the continuous expansion of the Internet of Things (IoT), many scenarios where the device being charged is fixed are no longer applicable.

[0004] Another approach involves fixing the device being charged in a fixed position, with the power supply either oriented through positioning or by selecting the nearest power supply for wireless charging. This method solves the problem of the device being charged being immobile and enables seamless wireless charging. However, this technology is limited by the deployment of the power supply equipment and requires additional functionality, increasing costs and overhead. Before charging, information exchange, positioning, and antenna control are required, operations beyond wireless energy transfer, reducing the actual energy transfer efficiency. Furthermore, the energy transfer efficiency of wireless charging is limited by the accuracy of positioning. Additionally, there are redundant overheads for scenarios where the device is in a fixed location. Summary of the Invention

[0005] This application provides a wireless charging method and apparatus that reduces resource waste and lowers costs.

[0006] Firstly, a wireless charging method is provided. This method can be executed by a first device. Unless otherwise specified, "first device" in this application can refer to a control device, a component within the control device (e.g., a processor, chip, or chip system), or a logic module or software capable of implementing all or part of the functions of the control device. The method includes: the first device receiving first reference position information from a third device, the first reference position information indicating a first relative spatial position between a second device and the third device; the first device controlling the second device to move to the first relative spatial position indicated by the first reference position information; and the first device controlling the second device to transmit radio waves to power the third device.

[0007] Based on the above scheme, the first device can determine the relative spatial position between the second and third devices using the first reference position information, thereby controlling the second device to move towards that relative spatial position to charge the third device. Compared to wireless power transfer schemes in related technologies where the second device moves to the device being charged, the above scheme does not require the second device to perform positioning and orientation information exchange, which can reduce resource waste and lower costs.

[0008] In one possible implementation, the first device receives second reference position information from the fourth device, the second reference position information indicating a second relative spatial position between the fourth device and the second device. The first device controls the second device to move to a third relative spatial position, the third relative spatial position being determined based on the first and second relative spatial positions. The first device controls the second device to transmit radio waves, the radio waves being used to power the third and fourth devices.

[0009] Based on the above scheme, the first device can determine the relative spatial position of the second device when charging the third and fourth devices according to the first reference position information and the second reference position information, and control the second device to move to the relative spatial position to charge the third and fourth devices.

[0010] In one possible implementation, the first reference position information includes one or more of the following: the relative distance between the second device and the third device, the height of the antenna of the second device, the angle of the antenna of the second device, or the transmission power of the second device when transmitting radio waves.

[0011] Based on the above scheme, using the above reference position information, the first device can control one or more of the following: the relative distance between the second device and the third device, the antenna height of the second device, the antenna angle of the second device, or the transmission power of the second device, thereby improving the power supply efficiency of the second device to the third device.

[0012] In one possible implementation, the first device receives first information from the third device, the first information indicating the initiation of radio wave transmission. The first device then initiates control of the second device to transmit radio waves. Based on this method, power can be supplied by the powered third device, thus enabling timely power supply when the third device's battery is low.

[0013] In one possible implementation, the first device receives second information from the third device, which instructs the second device to stop transmitting radio waves. The first device then stops controlling the second device to transmit radio waves. Based on this method, the power supply to the third device can be stopped, thus reducing energy waste when the third device has a high battery level.

[0014] In one possible implementation, at a first preset time, the first device initiates control of the second device to transmit radio waves. At a second preset time, the first device stops controlling the second device to transmit radio waves. The first and second preset times are determined based on one or more of the following: the battery capacity of the third device, the energy consumption of the third device, the operating mode of the third device, or the usage time of the third device.

[0015] Based on the above scheme, the first device can determine the time to start power supply and the time to stop power supply according to one or more of the battery capacity, energy consumption, working mode or usage time of the third device being powered, thus achieving seamless charging.

[0016] Secondly, a wireless charging method is provided. This method can be executed by a first device. Unless otherwise specified, "first device" in this application can refer to a charging device, a component within the charging device (e.g., a processor, chip, or chip system), or a logic module or software capable of implementing all or part of the functions of the charging device. The method includes: the first device receiving first reference position information from a third device, the first reference position information indicating a first relative spatial position between the second and third devices; the first device moving to the first relative spatial position indicated by the first reference position information; and the first device transmitting radio waves to power the third device.

[0017] In one possible implementation, the first device receives second reference position information from the fourth device, the second reference position information indicating a second relative spatial position between the fourth device and the second device. The first device moves to a third relative spatial position, the third relative spatial position being determined based on the first and second relative spatial positions. The first device transmits radio waves to power the third and fourth devices.

[0018] In one possible implementation, the first reference position information includes one or more of the following: the relative distance between the first device and the third device, the height of the antenna of the first device, the angle of the antenna of the first device, or the transmission power of the first device when transmitting radio waves.

[0019] In one possible implementation, the first device receives first information from the third device, the first information being used to instruct the initiation of radio wave transmission. The first device then initiates the transmission of radio waves.

[0020] In one possible implementation, the first device receives second information from the third device, the second information being used to instruct the first device to stop transmitting radio waves. The first device then stops transmitting radio waves.

[0021] In one possible implementation, the first device starts transmitting radio waves at a first preset time. At a second preset time, the first device stops transmitting radio waves. The first and second preset times are determined based on one or more of the following: the battery capacity of the third device, the energy consumption of the third device, the operating mode of the third device, or the usage time of the third device.

[0022] Thirdly, a wireless charging method is provided. This method can be executed by a third device. Unless otherwise specified, "third device" in this application can refer to the device being charged, a component within the device being charged (e.g., a processor, chip, or chip system), or a logic module or software capable of implementing all or part of the functions of the device being charged. The method includes: the third device transmitting first reference position information, the first reference position information indicating a first relative spatial position between a second device and the third device; the third device receiving radio waves emitted by the second device at a third relative spatial position, the third relative spatial position being determined based on the first relative spatial position; and the radio waves being used to power the third device.

[0023] In one possible implementation, the third relative spatial position is the same as the first relative spatial position. Alternatively, the third relative spatial position is determined based on the first and second relative spatial positions, where the second relative spatial position is the relative spatial position between the fourth device and the second device. Radio waves are used to power the third and fourth devices.

[0024] In one possible implementation, the first reference position information includes one or more of the following: the relative distance between the second device and the third device, the antenna height of the second device, the antenna angle of the second device, or the transmission power of the second device when transmitting radio waves.

[0025] In one possible implementation, the third device sends a first message instructing the second device to transmit radio waves. The first message is sent when the battery level of the second device is below a first preset value.

[0026] In one possible implementation, the third device sends a second message instructing the first device to stop transmitting radio waves. The second message is sent when the battery level of the second device is above a second preset value.

[0027] Fourthly, a charging device is provided, comprising: a processing unit and a transceiver unit.

[0028] The transceiver unit is configured to receive first reference position information from the third device, the first reference position information indicating a first relative spatial position between the second device and the third device. The processing unit is configured to control the second device to move to the first relative spatial position indicated by the first reference position information. The processing unit is also configured to control the second device to transmit radio waves, the radio waves being used to power the third device.

[0029] In one possible implementation, the transceiver unit is further configured to receive second reference position information from the fourth device, the second reference position information indicating a second relative spatial position between the fourth device and the second device. The processing unit is specifically configured to control the second device to move to a third relative spatial position, the third relative spatial position being determined based on the first and second relative spatial positions. The processing unit is also specifically configured to control the second device to transmit radio waves, the radio waves being used to power the third and fourth devices.

[0030] In one possible implementation, the reference location information includes one or more of the following: the relative distance between the second device and the third device, the height of the antenna of the second device, the angle of the antenna of the second device, or the transmission power of the second device when transmitting radio waves.

[0031] In one possible implementation, the transceiver unit is further configured to receive first information from the third device, the first information being used to instruct the initiation of radio wave transmission. The processing unit is specifically configured to initiate control of the second device to transmit radio waves.

[0032] In one possible implementation, the transceiver unit is further configured to receive second information from the third device, the second information being used to instruct the transmission of radio waves to cease. The processing unit is further configured to stop controlling the second device to transmit radio waves.

[0033] In one possible implementation, at a first preset time, the processing unit is specifically configured to initiate the control of the second device to transmit radio waves. At a second preset time, the processing unit is further configured to stop the control of the second device to transmit radio waves. The first and second preset times are determined based on one or more of the following: the battery capacity of the third device, the energy consumption of the third device, the operating mode of the third device, or the usage time of the third device.

[0034] Fifthly, a charging device is provided, comprising: a processing unit and a transceiver unit.

[0035] The transceiver unit is configured to receive first reference position information from the third device, the first reference position information indicating a first relative spatial position between the second and third devices. The processing unit is configured to control the charging device to move to the first relative spatial position indicated by the first reference position information. The transceiver unit is also configured to transmit radio waves for powering the third device.

[0036] In one possible implementation, the transceiver unit is further configured to receive second reference position information from the fourth device, the second reference position information indicating a second relative spatial position between the fourth device and the second device. The processing unit is specifically configured to control the charging device to move to a third relative spatial position, the third relative spatial position being determined based on the first and second relative spatial positions. The first device transmits radio waves, which are used to power the third and fourth devices.

[0037] In one possible implementation, the first reference position information includes one or more of the following: the relative distance between the first device and the third device, the height of the antenna of the first device, the angle of the antenna of the first device, or the transmission power of the first device when transmitting radio waves.

[0038] In one possible implementation, the transceiver unit is further configured to receive first information from a third device, the first information being used to instruct the initiation of radio wave transmission. The processing unit is specifically configured to initiate the transmission of radio waves.

[0039] In one possible implementation, the transceiver unit is further configured to receive second information from the third device, the second information being used to instruct the cessation of radio wave transmission. The processing unit is specifically configured to stop the transmission of radio waves.

[0040] In one possible implementation, at a first preset time, the processing unit is specifically configured to initiate the transmission of radio waves. At a second preset time, the processing unit is specifically configured to stop transmitting radio waves. The first and second preset times are determined based on one or more of the following: the battery capacity of the third device, the energy consumption of the third device, the operating mode of the third device, or the usage time of the third device.

[0041] Sixthly, a charging device is provided, comprising: a processing unit and a transceiver unit.

[0042] The processing unit is used to generate first reference position information, which indicates a first relative spatial position between the second device and the third device. The transceiver unit is used to transmit the first reference position information. The transceiver unit is also used to receive radio waves emitted by the second device at a third relative spatial position, which is determined based on the first relative spatial position. The radio waves are used to power the third device.

[0043] In one possible implementation, the third relative spatial position is the same as the first relative spatial position. Alternatively, the third relative spatial position is determined based on the first and second relative spatial positions, where the second relative spatial position is the relative spatial position between the fourth device and the second device. Radio waves are used to power the third and fourth devices.

[0044] In one possible implementation, the first reference position information includes one or more of the following: the relative distance between the second device and the third device, the antenna height of the second device, the antenna angle of the second device, or the transmission power of the second device when transmitting radio waves.

[0045] In one possible implementation, the transceiver unit is further configured to transmit first information, which instructs the second device to transmit radio waves. The first information is transmitted when the battery level of the second device is below a first preset value.

[0046] In one possible implementation, the transceiver unit is further configured to transmit second information, which instructs the first device to stop transmitting radio waves. The second information is transmitted when the battery level of the second device is higher than a second preset value.

[0047] In a seventh aspect, a charging device is provided for implementing the various methods described above. This charging device may be the first device described in the first aspect; or, the charging device may be the first device described in the second aspect; or, the charging device may be the third device described in the third aspect. The charging device includes modules, units, or means corresponding to the methods described above, which may be implemented in hardware, software, or by hardware executing corresponding software. The hardware or software includes one or more modules or units corresponding to the functions described above.

[0048] Eighthly, a charging device is provided, comprising: a processor and a communication interface; the communication interface being used to communicate with a module outside the charging device; the processor being used to execute a computer program or instructions to cause the method described in any of the preceding aspects to be performed. The charging device may be a first device as described in the first aspect; or, the charging device may be a first device as described in the second aspect; or, the charging device may be a third device as described in the third aspect. For example, when the charging device is a first device, the communication interface is used to communicate with the third device. Also for example, when the charging device is a third device, the communication interface is used to communicate with the first device.

[0049] A ninth aspect provides a charging device, comprising: at least one processor; the processor being configured to execute a computer program or instructions stored in a memory to implement the method described in any of the preceding aspects. The memory may be coupled to the processor, or may be independent of the processor. The charging device may be a first device as described in the first aspect; or, the charging device may be a first device as described in the second aspect; or, the charging device may be a third device as described in the third aspect.

[0050] In a tenth aspect, this application provides a charging system that may include a first means for performing the method described in the first aspect and a third means for performing the method described in the second aspect, as well as a second means for transmitting radio waves.

[0051] In one aspect, this application provides a charging system that may include a first device for performing the method described in the second aspect and a third device for performing the method described in the third aspect.

[0052] In a twelfth aspect, this application provides a computer-readable storage medium storing computer-readable instructions that, when read and executed by a computer, cause the computer to perform a method in any possible implementation of any of the first to third aspects described above.

[0053] In a thirteenth aspect, this application provides a computer program product that, when read and executed by a computer, causes the computer to perform a method in any possible implementation of any of the first to third aspects described above.

[0054] In a fourteenth aspect, this application provides a chip for reading a computer program stored in a memory to execute a method in any possible implementation of any of the first to third aspects described above.

[0055] It is understood that the technical effects of the second to fourteenth aspects can refer to the technical effects of any possible implementation of the first aspect, and will not be repeated here. Attached Figure Description

[0056] Figure 1 A schematic diagram of a communication system provided in an embodiment of this application;

[0057] Figure 2 An exemplary flowchart of a wireless charging method provided in an embodiment of this application;

[0058] Figure 3 An exemplary flowchart of another wireless charging method provided in an embodiment of this application;

[0059] Figure 4 An exemplary flowchart of another wireless charging method provided in an embodiment of this application;

[0060] Figure 5 An exemplary flowchart of another wireless charging method provided in an embodiment of this application;

[0061] Figure 6 A schematic diagram of a charging device provided in an embodiment of this application;

[0062] Figure 7 A schematic diagram of yet another charging device provided in an embodiment of this application;

[0063] Figure 8 A schematic diagram of yet another charging device provided in an embodiment of this application;

[0064] Figure 9 This is a schematic diagram of another charging device provided in an embodiment of this application. Detailed Implementation

[0065] The technical solutions in the embodiments of this application will be described below with reference to the accompanying drawings. The technical solutions in the embodiments of this application can be applied to various communication systems, such as Universal Mobile Telecommunications System (UMTS), Wireless Local Area Network (WLAN), Wireless Fidelity (Wi-Fi) systems, 4th generation (4G) mobile communication systems such as Long Term Evolution (LTE) systems, 5th generation (5G) mobile communication systems such as New Radio (NR) systems, and future evolutionary communication systems such as 6th generation (6G) mobile communication systems. Of course, the technical solutions provided in this application can also be applied to other possible communication systems, such as Vehicle to Everything (V2X) systems, Internet of Things (IoT) systems, Narrow Band Internet of Things (NB-IoT) systems, Bluetooth, SparkLink systems, etc.

[0066] This application will present various aspects, embodiments, or features relating to systems that may include multiple devices, components, modules, etc. It should be understood and appreciated that individual systems may include additional devices, components, modules, etc., and / or may not include all the devices, components, modules, etc. discussed in conjunction with the accompanying drawings. Furthermore, combinations of these approaches are also possible.

[0067] This application embodiment involves two electronic devices: a device being charged and a power supply device. The device being charged can be an IoT device such as a sensor or smart home appliance, or a personal electronic device such as a mobile phone, tablet computer, or wearable device, and has wireless power receiving and wireless communication transmission capabilities. The power supply device can (or may be referred to as a charging device, external power source, etc., but this application embodiment does not limit the terminology) supply power to the device being charged.

[0068] It should be noted that the technical solution provided in this application can be applied to wireless charging scenarios.

[0069] The terminology used in the following embodiments is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. As used in the specification and appended claims of this application, the singular expressions “a,” “an,” “the,” “the,” “the,” and “this” are intended to also include expressions such as “one or more,” unless the context clearly indicates otherwise. It should also be understood that in the embodiments of this application, “one or more” means one, two, or more; “and / or” describes the relationship between related objects, indicating that three relationships may exist; for example, A and / or B can indicate: A alone, A and B simultaneously, or B alone, where A and B can be singular or plural. The character “is” generally indicates that the preceding and following related objects have an “or” relationship.

[0070] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0071] The following explanation uses wired charging as an example. Of course, the implementation principle of wireless charging is similar to that of wired charging.

[0072] In this embodiment, the device being charged can be a device that provides voice and / or data connectivity to a user, such as a handheld device with wireless connectivity or a terminal device connected to a wireless modem. This terminal device can communicate with the core network via a radio access network (RAN) and exchange voice and / or data with the RAN. This terminal device can include user equipment (UE), wireless terminal equipment, mobile terminal equipment, subscriber unit, subscriber station, mobile station, mobile station, remote station, access point (AP), remote terminal equipment, access terminal equipment, user terminal equipment, user agent, or user device, etc. For example, it can include mobile phones (or "cellular" phones), mobile computers, tablets, personal digital assistants (PDAs), media players, smart TVs, wearable devices (such as smartwatches, smart helmets, or smart bracelets), routers, set-top boxes, speakers, mobile phones, tablets, computers with wireless transceiver capabilities, wearable devices, vehicles, drones, helicopters, airplanes, ships, robots, robotic arms, smart home devices, and combinations of two or more of the above. This terminal device can be widely used in various scenarios, such as device-to-device (D2D), V2X communication, machine-type communication (MTC), IoT, virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grids, smart furniture, smart offices, smart wearables, smart transportation, and smart cities.

[0073] In this embodiment of the application, the power supply equipment can be a device capable of transmitting radio waves, such as an access point (AP).

[0074] To facilitate understanding of the embodiments of this application, Figure 1 A possible, non-limiting system schematic diagram is shown. For example... Figure 1 As shown, the communication system may include a powered device and a charging device. The charging device can provide energy to the powered device via an energy link, that is, supply power to the powered device.

[0075] With the rapid development and widespread application of wireless networks, especially the Internet of Things (IoT), the level of intelligence in people's daily work and life has been greatly improved. All wireless smart devices in the IoT rely on electricity as a power source. Wireless smart devices are usually powered by traditional chemical batteries. Traditional batteries do not store much electricity, are not reusable, have a limited lifespan, require regular maintenance, and, being a non-green energy source, cause some pollution to the environment.

[0076] While wireless smart devices can be kept running simply by charging or replacing batteries, this process is not so straightforward for IoT wireless network devices. For example, when deploying wireless sensor networks, the sensor area may be larger and the sensor locations may be random, making it costly to replace sensor batteries after they run out. Although some batteries are now made extremely small, greatly reducing their size and making them portable, even used in medicine such as powering pacemakers, replenishing them once their power is depleted remains very difficult.

[0077] Therefore, power supply has become a bottleneck for enabling wireless smart devices to operate for extended periods, even with virtually unlimited lifespans. Currently, there are generally two approaches to addressing this issue: one is to design alternative, more efficient power supply methods, such as using devices that can harvest environmental energy and convert it into electricity, thereby extending the lifespan of wireless devices. This demand has led to the emergence of new energy harvesting (EH) technologies. The second approach involves saving energy and extending node lifespan through IoT hardware and software design, such as reducing system energy consumption during operation, designing power-conscious protocol stacks, and improving battery energy utilization. Furthermore, with the unprecedented growth of wireless data services, energy consumption is increasing, and green communication has been repeatedly proposed, considering reducing the use of fossil fuels and increasing renewable energy to achieve a new paradigm shift in power supply. Therefore, the development of EH technology provides a solution for reducing energy consumption and achieving green communication.

[0078] Battery-free IoT based on energy harvesting or wireless power transfer technologies offers advantages such as maintenance-free operation, more flexible device size, longer lifespan, and reduced costs. Energy harvesting technologies are conventionally divided into two types: early hardware devices only supported the harvesting of natural energy sources, such as solar, wind, and electromagnetic waves; the latter can extract energy from radio frequency (RF) signals, although this resource is less abundant, it is of great significance for node deployment in harsh environments. By designing an energy harvesting circuit to collect electromagnetic wave energy present in the environment, battery life can be extended or even replaced as a power source for the sensors themselves. Furthermore, with the recent advancements in inductive coupling (IC) technology, the overall power consumption can be reduced to μW, and RF energy harvesting generally falls within this energy level range, making it feasible to use environmental RF signal energy as a power input for the device. In addition, with the development of wireless communication technology and the widespread use of power sources such as cellular mobile base stations, Wi-Fi, digital TV and wireless routers, our surroundings are filled with a large number of radio frequency signals.

[0079] The sources of radio frequency (RF) energy in the environment are diverse, mainly including digital television signals, frequency modulation (FM), Global System for Mobile Communication (GSM), Wi-Fi, and Bluetooth, each with different frequencies, thus providing RF signals to devices operating in different frequency bands. These RF energy sources not only significantly increase the power density of RF energy but also radiate stable electromagnetic waves continuously around the clock. These conditions provide strong support for the development of RF energy harvesting technology.

[0080] Wireless power transfer refers to the technology of non-contact power transfer through the air without wires, freeing various electronic devices from the constraints of power cords. The three most widely used wireless charging technologies are: inductive coupling (IC), magnetic resonance (MR), and microwave energy transmission (MET). IC and MR technologies are suitable for short-range wireless power transfer, while MET technology is suitable for long-range wireless power supply systems, converting radio waves into DC power with a coverage distance of 1m to 100m. Compared to short-range wireless charging using magnetic induction and magnetic resonance, long-range wireless power supply is less efficient, with a system efficiency of only 30-40%, as most energy is lost due to path loss.

[0081] Wireless power transfer typically requires the power source to be located near the device being charged, and the received energy decreases significantly with increasing distance. To address this issue, near-field coupling technology uses large parabolic antenna systems, such as satellite antennas or array antennas, to focus the electromagnetic field. However, these methods are costly, difficult to implement, and it is challenging to aim the beam at the device being charged, which is far from the antenna. Furthermore, the power supply and the device being charged cannot move relative to each other during charging.

[0082] To address the pain point that the power supply device and the device being charged cannot move relative to each other during wireless charging energy transfer, a common method is to place the device being charged on the power supply device. In other words, the power supply device is fixed while the device being charged moves. This is used for short-range wireless charging or energy transfer of devices such as mobile phones, wearables, and electric vehicles. The power supply device remains stationary while the device being charged moves to it and waits for it to stabilize before wireless energy transfer. This method is only suitable for applications where the device being charged can be easily moved, and charging requires placing the device on or near the power supply device; it is not truly seamless wireless charging. With the continuous expansion of the Internet of Things (IoT), many scenarios where the device being charged is fixed are no longer applicable.

[0083] Another approach involves fixing the device being charged in a fixed position, with the power supply either oriented through positioning or by selecting the nearest power supply for wireless charging. This method solves the problem of the device being charged being immobile and enables seamless wireless charging. However, this technology is limited by the deployment of the power supply equipment and requires additional functionality, increasing costs and overhead. Before charging, information exchange, positioning, and antenna control are required, operations beyond wireless energy transfer, reducing the actual energy transfer efficiency. Furthermore, the energy transfer efficiency of wireless charging is limited by the accuracy of positioning. Additionally, there are redundant overheads for scenarios where the device is in a fixed location.

[0084] Therefore, embodiments of this application provide a wireless charging method. In this method, a first device can receive first reference position information from a third device. The first reference position information indicates a first relative spatial position between the second and third devices. The first device can control the second device to move to the first relative spatial position indicated by the first reference position information and control the second device to emit radio waves. These radio waves can be used to power the third device.

[0085] Unless otherwise specified, the term "first device" in this application can refer to a control device, a component within the control device (e.g., a processor, chip, or chip system), or a logic module or software capable of implementing all or part of the functions of the control device. The term "second device" in this application can refer to a power supply device, a component within the power supply device (e.g., a processor, chip, or chip system), or a logic module or software capable of implementing all or part of the functions of the power supply device. The term "third device" in this application can refer to a device being charged, a component within the device being charged (e.g., a processor, chip, or chip system), or a logic module or software capable of implementing all or part of the functions of the device being charged.

[0086] Based on the above scheme, the control device can determine the relative spatial position between the power supply device and the device being charged using the first reference position information. This allows the control device to move towards that relative spatial position to charge the device. Compared to wireless power transfer schemes where the power supply device moves to the device being charged in related technologies, the above scheme eliminates the need for positioning and orientation information exchange between the power supply device and the device being charged, reducing resource waste and lowering costs.

[0087] It should be noted that the first device can be integrated into the second device, or the first device and the second device can be different devices. In the following explanation, the first device is used as a control device, the second device is used as a power supply device, and the third device is used as a device being charged.

[0088] See Figure 2 The diagram illustrates an exemplary flowchart of a wireless charging method provided in an embodiment of this application, which may include the following steps.

[0089] S201: The control device acquires the first reference position information.

[0090] The first reference location information can be used to indicate the relative spatial position between the power supply device and the device being charged. This relative spatial position can be understood as the position where the device being charged and the power supply device can perform wireless power transfer more efficiently.

[0091] In some embodiments, the first reference location information may include one or more of the following.

[0092] 1) The relative distance between the device being charged and the power supply device indicates the distance between the device being charged and the power supply device.

[0093] 2) Antenna height of the power supply equipment: This indicates the height at which the antenna of the power supply equipment is placed when the power supply equipment transmits radio waves for power supply.

[0094] 3) Antenna angle of the power supply equipment, indicating the direction of the antenna of the power supply equipment when it transmits radio waves for power supply.

[0095] 4) Transmission power of the power supply equipment, indicating the maximum transmission power of the power supply equipment when transmitting radio waves for power supply, or indicating the power value that needs to be adjusted when the power supply equipment transmits radio waves for power supply.

[0096] The following describes the method for the control device to obtain the first reference position information through cases 1 and 2.

[0097] Case 1: The control device receives the first reference position information from the device being charged.

[0098] In scenario 1, the control device can receive first reference location information from the device being charged. For example, the device being charged can send the first reference location information to the control device upon initial access to the control device's network. As another example, the control device can send a request to the device being charged, which can be used to request the controlled device to send the first reference location information; therefore, the device being charged can send the first reference location information to the control device.

[0099] In this scenario, the first reference position information can be set at the factory configuration of the device being charged, and the device being charged can store this first reference position information. For example, the first reference position information can be a coordinate point, indicating a reference point. As another example, the first reference position information can be area information, indicating a reference area.

[0100] Based on the above scheme, the control device does not need to interact with information such as positioning and orientation to determine the relative spatial position of the power supply equipment when performing wireless power transmission, which can save transmission resources and reduce costs.

[0101] Scenario 2: The control equipment determines the first reference position information through the power supply equipment.

[0102] In scenario 2, the first reference position information can be determined by the power supply equipment through methods such as positioning search. For example, the control equipment can control the power supply equipment to traverse multiple locations in the space where the device being charged is located, and select the first reference position information indicating the first relative spatial position from these multiple locations.

[0103] For example, the control device can control the power supply device to move to a first position in the space where the device being charged is located, and control the power supply device to transmit radio waves at that first position. The device being charged can receive the radio waves transmitted by the power supply device at the first position. In one possible scenario, the device being charged can determine the power supply efficiency at the first position based on the received radio waves and send that efficiency to the control device. For example, the radio waves transmitted by the power supply device at the first position can indicate the transmitted energy, and the device being charged can determine the power supply efficiency based on the received and transmitted energy of the radio waves. For example, if the transmitted energy is AdB and the received energy is BdB, then the power supply efficiency can be A / B. The device being charged can send the power supply efficiency at the first position to the control device. In another possible scenario, the device being charged can send the received energy of the radio waves to the control device, and the power supply device can send the transmitted energy of the radio waves to the control device, so that the control device can determine the power supply efficiency at the first position.

[0104] In the example above, if the power supply efficiency at the first location does not reach the target power supply efficiency, the control device can control the power supply device to move to a second location in the space where the device being charged is located, and repeat the above operation until the power supply efficiency at a certain location reaches the target power supply efficiency. The control device can determine the information corresponding to the location where the target power supply efficiency is reached, such as one or more of the following as the first reference location information: the relative distance between the power supply device and the device being charged, the antenna height of the power supply device, the antenna angle of the power supply device, or the transmission power of the power supply device. It should be noted that in this example, the target power supply efficiency can be predefined.

[0105] For another example, the control device can determine the power supply efficiency at multiple locations within the space where the device being charged is located. It then identifies the location with the highest power supply efficiency from among these multiple locations as the first reference location information. The method by which the control device determines the power supply efficiency at multiple locations can be similar to the method by which it determines the power supply efficiency at the first location, and will not be elaborated here. It should be noted that in this example, the multiple locations can be predefined.

[0106] Based on scenario 2 above, the control device does not need to interact with information such as positioning and orientation. Instead, it determines the relative spatial position of the power supply device during wireless energy transmission through search and positioning methods, ensuring that the device being charged is in the Fresnel region of the power supply device's radiation far field. This can save transmission resources and reduce costs.

[0107] S202: The control device controls the power supply equipment to move to the first relative spatial position indicated by the first reference position information.

[0108] The first relative spatial position may include one or more of the following: the relative distance between the power supply device and the device being charged, the antenna height of the power supply device, the antenna angle of the power supply device, or the transmission power of the power supply device, and may be determined based on the first reference position information. In this document, the control device controlling the power supply device to move to the first relative spatial position may include one or more of the following:

[0109] 1. Control the power supply equipment to move to a certain position, where the relative distance between the power supply equipment and the charging equipment at that position is the relative distance indicated by the first reference position information (or the first relative spatial position).

[0110] 2. The antenna height of the control power supply equipment is the antenna height indicated by the first reference position information (or the first relative spatial position).

[0111] 3. Control the antenna angle of the power supply equipment to be the antenna angle indicated by the first reference position information (or the first relative spatial position).

[0112] 4. Control the transmission power of the power supply equipment to the transmission power indicated by the first reference position information (or the first relative spatial position).

[0113] For example, the control device can determine a wireless power transfer scheme based on a first relative spatial position (or a first reference position information). Upon initiating wireless power transfer, the determined wireless power transfer scheme is executed. This wireless power transfer scheme may include one or more of the following: the relative distance between the power supply devices, the antenna height of the power supply devices, the antenna angle of the power supply devices, or the transmission power of the power supply devices.

[0114] The first reference position information may include one or more of the following: the relative distance S between the charging device and the power supply device, the antenna height h of the power supply device, the antenna angle D of the power supply device, or the transmission power P of the power supply device. For example, the control device may determine that the power supply device needs to move to a certain position in the wireless power transfer scheme, and the relative distance between this position and the charging device is the relative distance S included in the first reference position information. For another example, the control device may determine that the antenna height of the power supply device in the wireless power transfer scheme should be the antenna height h included in the first reference position information. For another example, the control device may determine that the antenna angle of the power supply device in the wireless power transfer scheme is the antenna angle D included in the first reference position information. For another example, the control device may determine that the transmission power of the power supply device in the wireless power transfer scheme is the transmission power P included in the first reference position information.

[0115] When initiating wireless power transfer, the control device can execute the wireless power transfer scheme. For example, the control device can control the power supply device to move to a certain location. Another example is that the control device can control the antenna height of the power supply device to be h. Yet another example is that the control device can control the antenna angle of the power supply device to be D. And yet another example is that the control device can control the transmission power of the power supply device to be P.

[0116] S203: Control equipment controls the power supply equipment to transmit radio waves.

[0117] In S203, the control device can control the power supply device to emit radio waves to power the device being charged. In this embodiment, the power supply can also be replaced by charging or providing energy, etc. For example, the control device can control the power supply device to move to a position determined by the control device in S202 to emit the radio waves. For another example, the control device can control the antenna height of the power supply device when emitting the radio waves to be h. For another example, the control device can control the antenna angle of the power supply device when emitting the radio waves to be D. For another example, the control device can control the transmission power of the power supply device when emitting the radio waves to be P.

[0118] In some embodiments, the number of devices to be charged can be one or more. When there is only one device to be charged, when wireless power transmission is initiated, the control device can control the power supply device to move to the first relative spatial position indicated by the first reference position information, as described in S202. When there are multiple devices to be charged, when wireless power transmission is initiated, the control device needs to determine a third relative spatial position based on the reference position information of the multiple devices to be charged, and control the power supply device to move to the third relative spatial position.

[0119] For example, assume there are two devices being charged. In one possible scenario, the control device can receive first reference position information from device A and second reference position information from device B. The first and second reference position information can include one or more of the information described in 1) to 4) above, which will not be elaborated further here. The control device can determine a first relative spatial position based on the first reference position information and a second relative spatial position based on the second reference position information. The control device can determine a third relative spatial position based on the first and second relative spatial positions. The third relative spatial position ensures that devices A and B are located in the Fresnel region of the power supply's far-field radiation area. The method by which the control device determines the third relative spatial position based on the first and second relative spatial positions is not specifically limited in this application.

[0120] For example, assuming the first reference position information is a region and the second reference position information is a region, then the third relative spatial position can be the intersection between the first and second relative spatial positions. As another example, assuming the first and second reference position information are both coordinate points, then the third relative spatial position can be the midpoint of the line connecting the first and second relative spatial positions. As yet another example, the control device can traverse multiple positions between the first and second relative spatial positions to determine the third relative spatial position, as described in Case 1 above, which will not be repeated here.

[0121] In another possible scenario, the control device can determine the third relative spatial position through a search and positioning method, as described in scenario 2 above. When there are multiple devices being charged (e.g., two), the power supply efficiency of the first position can be the average, squared difference, weighted average, maximum, or minimum value of the power supply efficiencies of the multiple devices being charged (e.g., device A and device B).

[0122] It should be understood that the third relative spatial position may include one or more of the following: the relative distance between the charging device A and the power supply device, the relative distance between the charging device B and the power supply device, the antenna height of the power supply device, the antenna angle of the power supply device, or the transmission power of the power supply device.

[0123] The control device can determine a wireless power transfer scheme, which can be determined by a third relative spatial position. When initiating wireless power transfer, the control device can control the power supply device to move to the third relative spatial position (refer to S202 implementation) and control the power supply device to emit radio waves, which can be used to power the charging device A and the charging device B.

[0124] It should be noted that charging device A and charging device B can be connected to the network simultaneously, or they can be connected to the network at different times. The following will explain... Figure 3 Let me introduce it. Figure 3 In the embodiment shown, the device being charged, A, can first connect to the network, while the device being charged, B, can connect to the network when the power supply device supplies power to the device being charged, A. Figure 3 In the embodiments shown, the control equipment and power supply equipment are integrated into the same device as an example for illustration.

[0125] See Figure 3 The following is an exemplary flowchart of a wireless charging method provided in an embodiment of this application, which may include the following steps.

[0126] S301: The device being charged, A, is initially connected to the network.

[0127] For example, the device being charged, A, can initially connect to the network where the power supply is located.

[0128] S302: The device being charged, A, sends the first reference position information to the power supply device.

[0129] Accordingly, the power supply equipment receives the first reference position information from the power supply equipment A. The first reference position information can indicate a first relative spatial position, as described in section S201.

[0130] S303: The power supply equipment moves to the first relative spatial position.

[0131] For example, the power supply device can determine a wireless power transfer scheme based on a first relative spatial position. For instance, the power supply device moves to a location where the relative distance between the power supply device and the device being charged is the relative distance indicated by the first reference position information (or the first relative spatial position). Also for instance, the antenna height of the power supply device is the antenna height indicated by the first reference position information (or the first relative spatial position). Also for instance, the antenna angle of the power supply device is the antenna angle indicated by the first reference position information (or the first relative spatial position). Also for instance, the transmission power of the power supply device is controlled to be the transmission power indicated by the first reference position information (or the first relative spatial position).

[0132] S304: Power supply equipment transmits radio waves.

[0133] For example, a power supply device can emit radio waves when initiating wireless power transfer. These radio waves can then be used to power the device being charged, A.

[0134] S305: The device being charged, B, initially connects to the network.

[0135] For example, the device being charged, B, can initially connect to the network where the power supply is located.

[0136] S306: The device being charged, B, sends a second reference position information to the power supply device.

[0137] Correspondingly, the power supply equipment receives the second reference position information from the device being charged, B.

[0138] The second reference position information can indicate the second relative spatial position, and can be referred to the relevant description of the first reference position information in S201.

[0139] S307: The power supply equipment has stopped transmitting radio waves.

[0140] In S307, since the power supply device receives the second reference position information sent by the device being charged B, the power supply device can update the relative spatial position. For example, the power supply device can update the first relative spatial position to a third relative spatial position. This third relative spatial position can be determined by the first and second relative spatial positions.

[0141] S308: The power supply equipment is moved to the third relative spatial position.

[0142] For example, the power supply device can determine a wireless power transfer scheme based on a third relative spatial position. For instance, the power supply device moves to a location where the relative distance between the power supply device and the device being charged is the relative distance indicated by the third relative spatial position. Also for instance, the antenna height of the power supply device is the antenna height indicated by the third relative spatial position. Also for instance, the antenna angle of the power supply device is the antenna angle indicated by the third relative spatial position. Also for instance, the transmission power of the power supply device is controlled to be the transmission power indicated by the third relative spatial position.

[0143] S309: Power supply equipment transmits radio waves.

[0144] The radio waves can provide power to both device A and device B being charged.

[0145] Based on the above scheme, the power supply device (or control device) can determine its relative spatial position based on the reference position information of one or more devices being charged. Therefore, the power supply device can move to this relative spatial position to supply power to one or more devices being charged. Compared to wireless power transmission schemes in related technologies where the power supply device moves while the charged device remains stationary, the above scheme eliminates the need for positioning and orientation information exchange between the power supply device (or control device) and one or more devices being charged, saving transmission resources and enabling seamless charging of the charged devices.

[0146] In this embodiment of the application, wireless power transfer can be initiated by a control device or by the device being charged, as described below. Figure 4 and Figure 5 Let me introduce it.

[0147] Combination Figure 4 This describes a scheme for starting or stopping wireless power transfer by the device being charged. See also... Figure 4 An exemplary flowchart of a wireless charging method is shown, which may include the following steps.

[0148] S401: The device being charged sends the first message to the control device.

[0149] Accordingly, the control device receives the first information from the device being charged.

[0150] The first information may instruct the initiation of transmitting radio waves to power the device being charged. Alternatively, the first information may instruct the initiation of wireless charging or wireless power transfer.

[0151] In some embodiments, the device being charged may send a first message to the control device when its power is insufficient. For example, the device being charged may send the first message to the control device when its power level falls below a first threshold. The first threshold may be predefined, such as 10%, 20%, 5%, 1%, or 0%.

[0152] S402: The control device controls the power supply equipment to start transmitting radio waves.

[0153] In this way, the power supply equipment can begin emitting radio waves to power the device being charged. For example, the control equipment can control the power supply equipment to move to a first relative spatial position and control the power supply equipment to emit radio waves. Alternatively, the power supply equipment may have already moved to the first relative spatial position after receiving first reference position information. In S402, the control equipment can then control the power supply equipment to emit radio waves.

[0154] S403: The device being charged sends a second message to the control device.

[0155] Correspondingly, the control device receives the second information from the device being charged.

[0156] The second information can be used to instruct the cessation of radio wave transmission. Alternatively, the second information can be used to instruct the cessation of charging or the cessation of wireless power transfer.

[0157] In some embodiments, the device being charged may send a second message to the control device when the battery level reaches a second threshold. The second threshold may be predefined, such as 100%.

[0158] S404: The control device controls the power supply equipment to stop transmitting radio waves.

[0159] In this way, the power supply equipment can stop emitting radio waves and stop supplying power to the device being charged.

[0160] Based on the above scheme, wireless power transfer can be started or stopped by the device being charged. Therefore, the timing of starting or stopping wireless power transfer is determined based on the power level of the device being charged, which is more accurate and can reduce energy waste.

[0161] The following, combined with Figure 5 This describes a scheme for starting or stopping wireless power transfer using a control device. See also... Figure 5 The following is an exemplary flowchart of a wireless charging method provided in an embodiment of this application, which may include the following steps.

[0162] S501: The control device controls the power supply equipment to start transmitting radio waves at a first preset time.

[0163] For example, the control device can control the power supply device to move to a first relative spatial position at a first preset time, and control the power supply device to emit radio waves. These radio waves can be used to supply power to the device being charged.

[0164] In one possible implementation, the control device can determine the first preset time based on the energy demand information of the device being charged. The energy demand information may include one or more of the following: the battery capacity of the device being charged, the battery level of the device being charged, the operating mode of the device being charged, the energy consumption of the device being charged, or the usage time of the device being charged. The energy demand information can be sent by the device being charged to the control device. For example, the energy demand information may be sent to the control device when the device being charged initially accesses the network. Optionally, the energy demand information may be sent in the same message as the first reference location information, or it may be sent in a different message. As another example, the control device may send a second request message to the device being charged, requesting the device being charged to send the energy demand information to the control device.

[0165] For example, the control device can determine the start time (first preset time) and the end time (second preset time) of wireless power transmission based on the aforementioned energy demand information. Also for example, the control device can determine the start time (first preset time) and the duration of wireless power transmission based on the aforementioned energy demand information.

[0166] For example, the control device can determine, based on the energy demand information of the device being charged, that the battery level of the device being charged will fall below a first preset time. Exemplarily, the control device can determine the first preset time based on the power consumption of the device being charged per unit time. The power consumption per unit time can be determined based on one or more of the operating mode and energy consumption of the device being charged. Optionally, the control device can determine the first preset time based on the power consumption of the device being charged per unit time and the charging speed. The charging speed can be understood as the amount of charge per unit time, and can be known to the control device.

[0167] For example, the control device can determine, based on the energy demand information of the device being charged, that the battery level of the device being charged will reach a second threshold after a second preset time or after the wireless energy transmission continues for a certain duration. For instance, the control device can determine the second preset time based on a first preset time and the charging speed of the device being charged. Optionally, the control device can determine the second preset time based on the first preset time, the charging speed of the device being charged, and the power consumption of the device being charged per unit time.

[0168] S502: The control device controls the power supply equipment to stop transmitting radio waves at a second preset time.

[0169] In this way, the power supply equipment stops emitting radio waves and stops charging the device being charged.

[0170] In one possible implementation, S502 can be implemented with reference to S403 and S404. That is, stopping wireless power transfer can be controlled by the device being charged.

[0171] Based on the above scheme, the start or stop of wireless power transmission can be controlled by the control device, which can achieve seamless power supply.

[0172] Based on the concept of the above embodiments, see [reference] Figure 6 This application provides a charging device 600, which includes a processing unit 601 and a transceiver unit 602. The device 600 can be a charging device, or it can be an apparatus applied to a charging device that supports the charging device in performing a wireless charging method.

[0173] The transceiver unit can also be referred to as a transceiver module, transceiver, transceiver machine, transceiver device, etc. The processing unit can also be referred to as a processor, processing board, processing unit, processing device, etc. Optionally, the device in the transceiver unit used to implement the receiving function can be considered as a receiving unit. It should be understood that the transceiver unit is used to execute the sending and receiving operations of the charging device in the above method embodiments, and the device in the transceiver unit used to implement the sending function can be considered as a sending unit; that is, the transceiver unit includes a receiving unit and a sending unit.

[0174] Furthermore, it should be noted that if the device is implemented using a chip / chip circuit, the transceiver unit can be an input / output circuit and / or a communication interface, performing input operations (corresponding to the aforementioned receiving operations) and output operations (corresponding to the aforementioned sending operations); the processing unit is an integrated processor, microprocessor, or integrated circuit.

[0175] The following describes in detail the implementation of the device 600 in the first and third devices.

[0176] By way of example, when the device 600 is applied to the first device, the operations performed by each unit thereon will be described in detail.

[0177] In one optional embodiment, the charging device 600 can be applied to the first device to perform the method executed by the first device, specifically as described above. Figure 3 The method performed by the first device in the illustrated embodiment.

[0178] For example, transceiver unit 602 is used to receive first reference position information from the third device, the first reference position information indicating a first relative spatial position between the second device and the third device. Processing unit 601 is used to control the second device to move to the first relative spatial position indicated by the first reference position information. Processing unit 601 is also used to control the second device to transmit radio waves, the radio waves being used to power the third device.

[0179] By way of example, when the device 600 is applied to a third device, the operations performed by each unit thereon will be described in detail.

[0180] In one optional embodiment, the charging device 600 can be applied to a third device to perform the method executed by the third device, specifically as described above. Figure 3 The method performed by the third device in the illustrated embodiment.

[0181] For example, processing unit 601 is used to generate first reference position information, which indicates a first relative spatial position between the second device and the third device. Transceiver unit 602 is used to transmit the first reference position information. Transceiver unit 602 is also used to receive radio waves emitted by the second device at a third relative spatial position, which is determined based on the first relative spatial position, and the radio waves are used to power the third device.

[0182] Based on the concept of the embodiments, such as Figure 7 As shown, this application embodiment provides a charging device 700. The charging device 700 includes a processor 710. Optionally, the charging device 700 may further include a memory 720 for storing instructions executed by the processor 710, input data required for executing the processor 710's instructions, or data generated after the processor 710 executes the instructions. The processor 710 can implement the method shown in the above method embodiment through the instructions stored in the memory 720.

[0183] Based on the concept of the embodiments, such as Figure 8 As shown, this application embodiment provides a charging device 800, which may be a chip or a chip system. Optionally, in this application embodiment, the chip system may be composed of chips, or may include chips and other discrete devices.

[0184] The charging device 800 may include at least one processor 810 coupled to a memory. Optionally, the memory may be located within or outside the device. For example, the charging device 800 may also include at least one memory 820. The memory 820 stores computer programs, configuration information, computer programs or instructions, and / or data necessary for implementing any of the above embodiments; the processor 810 may execute the computer programs stored in the memory 820 to perform the methods in any of the above embodiments. Optionally, the memory may also be integrated with the processor.

[0185] The coupling in this embodiment is an indirect coupling or communication connection between devices, units, or modules, which can be electrical, mechanical, or other forms, used for information exchange between devices, units, or modules. The processor 810 may operate in conjunction with the memory 820. This embodiment does not limit the specific connection medium between the transceiver 830, processor 810, and memory 820.

[0186] The charging device 800 may also include a transceiver 830, which allows the charging device 800 to exchange information with other devices. The transceiver 830 can be a circuit, a bus, a transceiver itself, or any other device capable of exchanging information, also referred to as a signal transceiver unit. Figure 8 As shown, the transceiver 830 includes a transmitter 831, a receiver 832, and an antenna 833. Furthermore, when the charging device 800 is a chip-based device or circuit, the transceiver in the charging device 800 can also be an input / output circuit and / or a communication interface, capable of inputting data (or receiving data) and outputting data (or transmitting data). The processor is an integrated processor, a microprocessor, or an integrated circuit, and the processor can determine the output data based on the input data.

[0187] In one possible implementation, the charging device 800 can be applied to a charging device. Specifically, the charging device 800 can be a charging device or a device capable of supporting a charging device and implementing the functions of the first or third device in any of the above embodiments. The memory 820 stores the necessary computer programs, computer programs or instructions and / or data for implementing the functions of the first or third device in any of the above embodiments. The processor 810 can execute the computer programs stored in the memory 820 to perform the methods executed by the first or third device in any of the above embodiments.

[0188] In the embodiments of this application, the processor may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components, and may implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor may be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this application can be directly manifested as being executed by a hardware processor, or executed by a combination of hardware and software modules within the processor.

[0189] In the embodiments of this application, the memory can be non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), or it can be volatile memory, such as random-access memory (RAM). The memory can also be any other medium capable of carrying or storing desired program code in the form of instructions or data structures, and accessible by a computer, but is not limited thereto. The memory in the embodiments of this application can also be a circuit or any other device capable of implementing storage functions, used to store computer programs, computer program or instruction and / or data.

[0190] Based on the above embodiments, see Figure 9 This application embodiment also provides another charging device 900, including: an input / output interface 910 and a logic circuit 920; the input / output interface 910 is used to receive code instructions and transmit them to the logic circuit 920; the logic circuit 920 is used to run the code instructions to execute the method executed by the first device or the third device in any of the above embodiments.

[0191] The following is a detailed description of the operation performed by the device 900 when applied to the first or third device.

[0192] In one optional embodiment, the charging device 900 can be applied to the first device to perform the method executed by the first device, specifically as described above. Figure 3 The method performed by the first device in the illustrated embodiment.

[0193] For example, input / output interface 910 is used to receive first reference position information from a third device, the first reference position information indicating a first relative spatial position between the second and third devices. Logic circuit 920 is used to control the second device to move to the first relative spatial position indicated by the first reference position information. Logic circuit 920 is also used to control the second device to transmit radio waves, the radio waves being used to power the third device.

[0194] Since the charging device 900 provided in this embodiment can be applied to the first device to execute the method performed by the first device, the technical effects it can achieve can be referred to the above method embodiment, and will not be repeated here.

[0195] In one optional embodiment, the charging device 900 can be applied to a third device to perform the method executed by the third device, specifically as described above. Figure 3 The method performed by the third device in the illustrated embodiment.

[0196] For example, logic circuit 920 is used to generate first reference position information, which indicates a first relative spatial position between the second device and the third device. Input / output interface 910 is used to transmit the first reference position information. Input / output interface 910 is also used to receive radio waves emitted by the second device at a third relative spatial position, which is determined based on the first relative spatial position, and the radio waves are used to power the third device.

[0197] Since the charging device 900 provided in this embodiment can be applied to a third device to execute the method performed by the third device, the technical effects it can achieve can be referred to the above method embodiment, and will not be repeated here.

[0198] Based on the above embodiments, this application also provides a communication system, which includes at least one third device and at least one first device. The technical effects obtained can be referred to the above method embodiments, and will not be repeated here.

[0199] Based on the above embodiments, this application also provides a computer-readable storage medium storing a computer program or instructions. When the instructions are executed, the method performed by the charging device in any of the above embodiments is implemented. The computer-readable storage medium may include various media capable of storing program code, such as a USB flash drive, portable hard drive, read-only memory, random access memory, magnetic disk, or optical disk.

[0200] To achieve the above Figures 6-9 In addition to the functions of the charging device, this application also provides a chip, including a processor, for supporting the charging device in implementing the functions involved in the first or third device in the above method embodiments. In one possible design, the chip is connected to a memory or the chip includes a memory for storing computer programs or instructions and data necessary for the first or third device.

[0201] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0202] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by a computer program or instructions. Such computer programs or instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0203] These computer programs or instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0204] These computer programs or instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

Claims

1. A wireless charging method, characterized by, Applied to a first device, comprising: receiving first reference position information from a third device, the first reference position information being used to indicate a first relative spatial position between a second device and the third device; controlling the second device to move to the first relative spatial position indicated by the first reference position information; controlling the second device to emit radio waves, the radio waves being used to power the third device.

2. The method of claim 1, wherein, Further comprising: receiving second reference position information from a fourth device, the second reference position information being used to indicate a second relative spatial position between the fourth device and the second device; the controlling the second device to move to the first relative spatial position indicated by the first reference position information, comprising: controlling the second device to move to a third relative spatial position, the third relative spatial position being determined based on the first relative spatial position and the second relative spatial position; the controlling the second device to emit radio waves, the radio waves being used to power the third device, comprising: controlling the second device to emit radio waves, the radio waves being used to power the third device and the fourth device.

3. The method according to claim 1 or 2, characterized in that, The first reference position information comprises one or more of: a relative distance between the second device and the third device, a height of an antenna of the second device, an angle of the antenna of the second device, or a transmission power of the second device when emitting the radio waves.

4. The method according to any one of claims 1 to 3, characterized in that, Further comprising: receiving first information from the third device, the first information being used to indicate to start emitting the radio waves; starting to control the second device to emit the radio waves.

5. The method according to any one of claims 1 to 4, characterized in that, Further comprising: receiving second information from the third device, the second information being used to indicate to stop emitting the radio waves; stopping to control the second device to emit the radio waves.

6. The method according to any one of claims 1 to 3, characterized in that, The emitting radio waves, comprising: starting to control the second device to send the radio waves at a first preset time; stopping to control the second device to send the radio waves at a second preset time; wherein the first preset time and the second preset time are determined based on one or more of a battery capacity of the third device, an energy consumption of the third device, an operation mode of the third device, or a usage time of the third device.

7. A wireless charging method, comprising: Applied to a third device, comprising: sending first reference position information, the first reference position information being used to indicate a first relative spatial position between a second device and the third device; receiving radio waves, the radio waves being emitted by the second device at a third relative spatial position, the third relative spatial position being determined based on the first relative spatial position, the radio waves being used to power the third device.

8. The method of claim 7, wherein, The third relative spatial position being determined based on the first relative spatial position, comprising: the third relative spatial position being the same as the first relative spatial position; or, the third relative spatial position being determined based on the first spatial position and a second relative spatial position, the second relative spatial position being a relative spatial position between a fourth device and the second device; the radio waves being used to power the third device, comprising: The radio wave is used to power the third device and the fourth device.

9. The method according to claim 7 or 8, characterized in that, The first reference position information comprises one or more of the following: a relative distance between the second device and the third device, an antenna height of the second device, an antenna angle of the second device, or a transmission power of the second device when transmitting the radio wave.

10. The method according to any one of claims 7 to 9, characterized in that, Further comprising: sending first information, the first information being used to instruct the second device to transmit the radio wave; wherein the first information is sent when an electricity level of the second device is lower than a first preset value.

11. The method according to any one of claims 7 to 10, characterized in that, Further comprising: sending second information, the second information being used to instruct the first device to stop transmitting the radio wave; wherein the second information is sent when the electricity level of the second device is higher than a second preset value.

12. A charging device, characterized by The apparatus comprises a processor coupled to a memory, the memory being used to store programs or instructions, when the programs or instructions are executed by the processor, the apparatus executes the method according to any one of claims 1-6.

13. A charged device, characterized by The apparatus comprises a processor coupled to a memory, the memory being used to store programs or instructions, when the programs or instructions are executed by the processor, the apparatus executes the method according to any one of claims 7-11.

14. A chip, characterized by The chip comprises: a communication interface; a processor, configured to invoke and run the instructions through the communication interface, so that a device installed with the chip system executes the method according to any one of claims 1-6, or so that the device installed with the chip system executes the method according to any one of claims 7-11.

15. A computer program product, characterised in that, The computer executable instructions, when run on a computer, cause the computer to execute the method according to any one of claims 1-6, or cause the electronic device to execute the method according to any one of claims 7-11.

16. A computer readable storage medium characterized by: The computer readable storage medium stores computer executable instructions, when the computer executable instructions are invoked by an electronic device, the electronic device executes the method according to any one of claims 1-6, or the electronic device executes the method according to any one of claims 7-11.

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