Wireless charging device and wireless charging method

Abstract

The invention provides a wireless charging device and a wireless charging method, the wireless charging device comprises a cambered surface reflecting antenna and a controller, the cambered surface reflecting antenna comprises a reflecting panel and a plurality of feed sources, and the plurality of feed sources are located on a focal plane of the reflecting panel. The controller is configured to activate the first feed source at the first position to generate a first wave beam for scanning positioning in a search phase and activate the second feed source at the second position to generate a second wave beam for transmitting energy in an energy transmission phase, and the width of the first wave beam is larger than that of the second wave beam.

Description

Technical Field

[0001] The present disclosure relates to the technical field of wireless power transmission (WPT), and in particular to a wireless charging device and a wireless charging method. Background Art

[0002] Traditional wireless charging technology in the field of wearable devices mainly uses phased array antenna systems and static beam control solutions. This technical framework has major defects such as high hardware cost, imperfect feedback mechanism, weak safety protection system and insufficient environmental adaptability. New wireless charging technology needs to be proposed. Summary of the Invention

[0003] The present disclosure provides a wireless charging device and a wireless charging method.

[0004] According to one aspect of the present disclosure, a wireless charging device is provided, comprising: a curved reflective antenna and a controller, wherein the curved reflective antenna comprises a reflective panel and a plurality of feed sources, wherein the plurality of feed sources are located on a focal plane of the reflective panel, and the controller is configured to: in a search phase, activate a first feed source at a first position to generate a first beam for scanning positioning; in an energy transmission phase, activate a second feed source at a second position to generate a second beam for transmitting energy, wherein a width of the first beam is greater than a width of the second beam.

[0005] According to another aspect of the present disclosure, a wireless charging method is provided, which is applied to a wireless charging device, wherein the wireless charging device includes a curved surface reflection antenna, the curved surface reflection antenna includes a reflection panel and multiple feed sources, and the multiple feed sources are located on the focal plane of the reflection panel. The method includes: in a search phase, activating a first feed source at a first position to generate a first beam for scanning positioning; in an energy transmission phase, activating a second feed source at a second position to generate a second beam for transmitting energy, wherein the width of the first beam is greater than the width of the second beam.

[0006] According to the wireless charging device and wireless charging method disclosed in the present invention, through the dynamic switching mechanism of wide and narrow dual-mode beams, the energy receiving device can be quickly located and energy transmission can be concentrated, which significantly improves energy transmission efficiency and reduces energy waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] In the accompanying drawings of the embodiments of the present disclosure:

[0008] Figure 1 A schematic diagram of a wireless charging device according to an embodiment of the present disclosure is shown;

[0009] Figure 2A schematic diagram of a curved reflective antenna of a wireless charging device according to an embodiment of the present disclosure is shown;

[0010] Figure 3 Another schematic diagram of a wireless charging device according to an embodiment of the present disclosure is shown;

[0011] Figure 4 Another schematic diagram of a wireless charging device according to an embodiment of the present disclosure is shown;

[0012] Figure 5 A flow chart of a wireless charging method according to an embodiment of the present disclosure is shown;

[0013] Figure 6 Another flow chart of the wireless charging method according to an embodiment of the present disclosure is shown;

[0014] Figure 7 Another flow chart of a wireless charging method according to an embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0015] In order to enable those skilled in the art to better understand the technical solutions of the present disclosure, the embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

[0016] The present disclosure will be described more fully hereinafter with reference to the accompanying drawings, but the illustrated embodiments may be embodied in different forms, and the present disclosure should not be construed as limited to the embodiments set forth below. On the contrary, these embodiments are provided so that the present disclosure will be thorough and complete and will fully understand the scope of the present disclosure to those skilled in the art.

[0017] The accompanying drawings of the embodiments of the present disclosure are used to provide a further understanding of the embodiments of the present disclosure and constitute a part of the specification. Together with the detailed embodiments, they are used to explain the present disclosure and do not constitute a limitation of the present disclosure. The above and other features and advantages will become more apparent to those skilled in the art by describing the detailed embodiments with reference to the accompanying drawings.

[0018] The present disclosure may be described with reference to plan views and / or cross-sectional views with the aid of idealized schematic diagrams. Therefore, the example illustrations may be modified according to manufacturing techniques and / or tolerances. It should be appreciated that in order to clearly illustrate various components, various components may not be drawn to scale.

[0019] In the absence of conflict, the various embodiments of the present disclosure and the various features therein may be combined with each other.

[0020] The terms used in this disclosure are only used to describe specific embodiments and are not intended to limit the disclosure. As used in this disclosure, the term "and / or" includes any and all combinations of one or more related enumerated items. As used in this disclosure, the singular forms "a" and "the" are also intended to include plural forms, unless the context clearly indicates otherwise. As used in this disclosure, the terms "comprising" and "made of" specify the presence of the features, wholes, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or groups thereof.

[0021] Unless otherwise defined, all terms (including technical and scientific terms) used in this disclosure have the same meanings as those commonly understood by those skilled in the art. It will also be understood that terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant art and this disclosure, and will not be interpreted as having an idealized or overly formal meaning unless expressly defined in this disclosure.

[0022] The present disclosure is not limited to the embodiments shown in the drawings, but includes modifications of the configurations formed based on the manufacturing process. Therefore, the regions illustrated in the drawings have schematic properties, and the shapes of the regions shown in the drawings illustrate the specific shapes of the regions, but are not intended to be limiting.

[0023] The concept of wireless power transfer (WPT) dates back to the late 19th century. In 1899, Tesla achieved wireless power transmission over 26 miles using a Tesla coil, lighting 200 light bulbs and driving an electric motor with a transmission efficiency of 99.5%. This laid the foundation for subsequent research based on the principles of electromagnetic induction and resonant coupling.

[0024] Traditional electromagnetic induction technology relies on Faraday's law, requiring close coupling of the primary and secondary coils (e.g., transformers). The transmission distance is limited to the centimeter level, and the transmission efficiency is inversely proportional to the cube of the distance. The millimeter wave frequency bands (e.g., 28GHz / 60GHz) and large-scale multiple input multiple output (MIMO) antenna arrays of 5G communication technology provide new possibilities for long-distance WPT. The high frequency characteristics of millimeter waves support narrow beams with high-density energy focusing. Combined with beamforming (BF) technology (e.g., phased array antennas), transmission over hundreds of meters can theoretically be achieved. Research shows that in 5G base station deployments, millimeter wave energy harvesting systems can maintain a stable energy supply in dense urban environments through adaptive beam adjustment.

[0025] Traditional phased array antennas achieve beam pointing adjustments through electronic scanning and are widely used in radar and satellite communications. 5G massive MIMO technology further expands this to hundreds of antenna elements, forming spatially multiplexed beams and improving spectral efficiency. For example, beamforming in 5G base stations enables concurrent energy transmission to multiple users by dynamically adjusting phase and amplitude.

[0026] However, in the field of wearable devices, wireless charging technology using phased array antenna systems and static beam control solutions has the following major defects.

[0027] Beam steering relies on expensive electronic phase control systems

[0028] Using phased array antennas to achieve beam steering requires numerous transmit / receive (T / R) components and complex circuitry, resulting in high hardware costs. These systems must continuously execute sophisticated algorithms to maintain beam direction, further increasing computing power and energy consumption. In particular, phased array systems struggle to balance cost and efficiency in dynamic tracking scenarios, hindering the widespread adoption of wireless charging technology for wearable devices.

[0029] Imperfect dynamic tracking and feedback mechanism

[0030] Related technical solutions utilize fixed or single-beam modes, lacking real-time closed-loop feedback when the receiving end moves or the environment changes. The transmitter cannot quickly detect the receiver's positional deviation, resulting in energy transmission interruption or reduced transmission efficiency. While some systems have incorporated electronic scanning technology, these systems struggle to achieve efficient and continuous energy transmission due to algorithm complexity and hardware response speed limitations.

[0031] Weak radiation safety protection system

[0032] Related systems generally lack active radiation monitoring and dynamic control capabilities, relying solely on fixed power limits or physical isolation to ensure safety. When a person accidentally enters a high-radiation area, the system struggles to adjust beam parameters or reduce energy density in a timely manner, posing the risk of excessive electromagnetic radiation. Furthermore, static safety strategies cannot adapt to the changing nature of device usage, easily resulting in insufficient protection or excessively restricting transmission performance.

[0033] Insufficient environmental adaptability and energy efficiency optimization

[0034] Related technologies have limited adaptability to complex environments and struggle to autonomously switch between wide-beam search and narrow-beam focusing modes. Dynamic tracking algorithms often rely on single-signal strength detection and fail to integrate multi-dimensional feedback data, resulting in insufficient positioning accuracy for moving targets. Furthermore, the system lacks coordinated optimization of beam width, power level, and transmission efficiency, making it difficult to balance the requirements of rapid positioning with energy-efficient transmission.

[0035] WPT technology is gradually moving towards large-scale application, requiring a balance between efficiency, safety, and cost. With the deep integration of intelligent algorithms, new materials, and 5G / 6G networks, WPT is expected to achieve "senseless energy supply" in fields such as healthcare, transportation, and industry, reshaping the energy transmission paradigm.

[0036] The present disclosure proposes a wireless charging device that uses a curved reflector antenna technology with a variable feed position to achieve switching between wide and narrow beams. It is cost-effective and suitable for wireless charging scenarios.

[0037] Figure 1 shows a schematic diagram of a wireless charging device according to an embodiment of the present disclosure, Figure 2 A schematic diagram of a curved reflective antenna of a wireless charging device according to an embodiment of the present disclosure is shown.

[0038] like Figure 1 and Figure 2 As shown, the arc reflective antenna 100 and the controller 200 of the wireless charging device according to the embodiment of the present disclosure. The arc reflective antenna 100 includes a reflective panel 110 and a plurality of feed sources 120, and the plurality of feed sources 120 are located on the focal plane 111 of the reflective panel 110. Figure 2 In the figure, black dots represent inactive feeds and white dots represent active feeds.

[0039] According to an embodiment of the present disclosure, the controller 200 is configured to: in the search phase, activate a first feed source at a first position to generate a first beam for scanning positioning; in the energy transmission phase, activate a second feed source at a second position to generate a second beam for transmitting energy, and the width of the first beam is greater than the width of the second beam.

[0040] Compared to traditional phased array antenna systems, the wireless charging device according to the embodiments of the present disclosure uses a curved reflector antenna with an adjustable feed position. By changing the position of the feed relative to the reflector, it is possible to dynamically switch between wide and narrow beams.

[0041] The wireless charging device of the disclosed embodiment achieves a dynamic balance between transmission efficiency and coverage by switching between wide and narrow beams. In wide-beam mode, the feed defocusing creates an energy coverage network; in narrow-beam mode, the electromagnetic waves are precisely focused, increasing the effective transmission distance.

[0042] In the initial search phase, the feed source is located near the focus of the reflective panel 110, generating wide beam coverage, i.e., first beam coverage, to quickly scan the environment to locate the energy receiving device. Once the location of the energy receiving device is confirmed, the feed source is adjusted to the optimal position on the focal plane 111 to form a highly focused narrow beam, i.e., the second beam, which highly concentrates energy on the target area and significantly improves energy transmission efficiency. Since wireless charging does not have high requirements for the error vector magnitude (EVM) and signal-to-noise ratio (SNR) of the waveform, there is no need to consider the impact of side lobes on signal quality. Therefore, the wireless charging device according to the embodiment of the present disclosure significantly reduces costs compared to the phased array antenna system.

[0043] Figure 3 Another schematic diagram of a wireless charging device according to an embodiment of the present disclosure is shown.

[0044] like Figure 3 As shown, according to an embodiment of the present disclosure, the controller 200 includes a radio frequency switch 210, and the controller 200 activates one or more feeds of the plurality of feed sources 120 through the radio frequency switch 210. According to an embodiment of the present disclosure, the radio frequency switch 210 can be implemented as a switch matrix, and each switch in the switch matrix corresponds to each feed of the plurality of feed sources 120.

[0045] According to an embodiment of the present disclosure, switches are used to control the multiple feed sources 120 of the arc reflector antenna 100, thereby replacing the phased components in the phased array antenna, thereby avoiding the problems of high cost and complex structure of the phased array system.

[0046] Figure 4 Another schematic diagram of a wireless charging device according to an embodiment of the present disclosure is shown.

[0047] like Figure 4 As shown, the wireless charging device according to an embodiment of the present disclosure further includes a communication unit 300. The communication unit 300 is configured to: during the search phase, receive location information fed back by the mobile terminal, where the location information is used to indicate the location of the mobile terminal. The controller 200 is further configured to: determine a second location based on the location information received by the communication unit 300.

[0048] According to an embodiment of the present disclosure, during the search phase, the controller 200 activates the first feed source at a first position via the RF switch 210 to generate a first beam for scanning positioning, thereby locating an energy receiving device, such as a mobile terminal. Furthermore, the communication unit 300 receives position information, such as feedback from the energy receiving device, indicating the location of the energy receiving device. Subsequently, the controller 200 determines a second position of a second feed source for generating a second beam based on the position information received by the communication unit 300, thereby highly concentrating energy on the target area where the energy receiving device, such as a mobile terminal, is located.

[0049] The wireless charging device according to the disclosed embodiments achieves control over the feed array and RF switch, significantly reducing the complexity of traditional mechanical transmission systems. Reusable feed units and a modular structure can be employed, eliminating the need for precision moving parts. Furthermore, the feed phase control circuitry is simplified, significantly reducing costs compared to traditional fixed-focus systems.

[0050] According to an embodiment of the present disclosure, the location information of the mobile terminal may be transferred through a wireless communication link (eg, WiFi, Bluetooth, etc.) established between the communication unit 300 and the mobile terminal.

[0051] According to an embodiment of the present disclosure, the communication unit 300 is further configured to: receive energy information fed back by the mobile terminal during the energy transmission phase, wherein the energy information is used to represent the energy level received by the mobile terminal, and the controller 200 is further configured to: redetermine the second position based on the energy information.

[0052] The wireless charging device according to the embodiment of the present disclosure is applicable to the application scenario of wireless charging for a mobile terminal. When the mobile terminal moves within the coverage area of ​​the wireless charging device, the target area determined by the wireless charging device in the search phase may no longer be applicable.

[0053] When the mobile terminal detects a change in the received energy level, for example, when the mobile terminal detects a change in the received signal strength indication (RSSI), it can send energy information to the wireless charging device to trigger automatic adjustment of the feed position of the wireless charging device to optimize the beam direction or switch the beam mode, or trigger the wireless charging device to increase the transmission power. By receiving energy information fed back by the mobile terminal during the energy transmission phase, the wireless charging device can determine whether the energy level received by the mobile terminal has changed. When the energy level received by the mobile terminal drops significantly, it can be determined that the mobile terminal has moved, and the second position of the second feed for generating the second beam can be re-determined based on the energy information fed back by the mobile terminal.

[0054] According to an embodiment of the present disclosure, the communication unit 300 is further configured to: periodically receive position information and energy information fed back by the mobile terminal during the energy transmission phase, and the controller 200 is further configured to: determine whether the mobile terminal is in an out-of-focus state based on the position information and energy information; in response to determining that the mobile terminal is in an out-of-focus state, perform at least one of the following: correct the second position based on historical optimal parameters; re-enter the search phase, activate the first feed source at the first position to scan and locate the mobile terminal; reset and calibrate the system-level parameters of the wireless charging device.

[0055] The wireless charging device can continuously detect the position of the mobile terminal through a low-power wide beam, and the mobile terminal can provide its precise position to the wireless charging device. The wireless charging device can determine the attenuation rate of the energy received by the mobile terminal based on the energy information fed back by the mobile terminal, and determine the spatial position offset of the mobile terminal based on the position information fed back by the mobile terminal. Based on the energy attenuation rate and the spatial position offset, the wireless charging device can determine whether the mobile terminal is in a defocus state, and can trigger different compensation mechanisms according to the defocus level. The compensation mechanism includes (but is not limited to): correcting the second position based on the historical optimal parameters, that is, historical parameter backtracking; re-entering the search phase, activating the first feed source at the first position to scan and locate the mobile terminal, that is, rescanning the environment; resetting and calibrating the system-level parameters of the wireless charging device, that is, system reset.

[0056] By receiving position and energy information fed back by a mobile terminal, the wireless charging device can control the position of the feed source and the energy emitted, thereby forming a closed-loop control process. For example, the wireless charging device can receive a data packet fed back in real time by a mobile terminal, where the data packet includes (but is not limited to) spatial coordinate information, received power parameters, and signal-to-noise ratio indicators. Based on the energy gradient change in the feedback data packet, the wireless charging device calculates the position of the feed source, i.e., the second position, through a preset control algorithm, and activates the second feed source at the second position through a position adjustment instruction.

[0057] According to an embodiment of the present disclosure, the communication unit 300 is further configured to: receive radiation intensity information fed back by the mobile terminal during the energy transmission stage, wherein the radiation intensity information is used to represent the radiation intensity distribution in the surrounding environment of the mobile terminal, and the controller 200 is further configured to: determine the power of the transmitted energy based on the radiation intensity information received by the communication unit.

[0058] According to an embodiment of the present disclosure, a mobile terminal can continuously monitor the radiation intensity distribution in its surrounding environment and pay special attention to areas that may affect the human body. Once it detects that the received energy may exceed a safety threshold, the mobile terminal can send an early warning signal, i.e., radiation intensity information, to the wireless charging device. The wireless charging device can change the beam width by adjusting the position of the feed source, or reduce the transmission power to ensure radiation safety.

[0059] The 2020 guidelines of the International Commission on Non-Ionizing Radiation Protection (ICNIRP) set a public exposure limit of 10W / m2 for the 2-6GHz frequency band. 2 and occupational limit of 50W / m 2 , and requires to consider the time and space averaging effect. For the millimeter wave frequency band (i.e., greater than 30GHz), a new 1cm 2 Local exposure limits are set to address the risks of narrow beam focusing. The Federal Communications Commission (FCC) and other agencies in the United States further require that systems integrate real-time monitoring and dynamic power control modules. For example, these systems can detect human position through infrared imaging or millimeter-wave radar, triggering transmission interruption or beam switching.

[0060] The wireless charging device according to an embodiment of the present disclosure may further include a memory storing multiple regulatory parameter libraries corresponding to multiple regions, wherein the regulatory parameter libraries include at least radiation safety threshold parameters. The controller 200 is further configured to: determine a corresponding regulatory parameter library from the multiple regulatory parameter libraries based on the location information received by the communication unit 300; and determine a transmission energy power that complies with the radiation safety threshold parameters based on the determined regulatory parameter library.

[0061] The wireless charging device according to the embodiment of the present disclosure may further include an input interface for receiving an operating mode set by a user, wherein the operating mode includes a security level, power limit, and authentication requirements, and storing the operating mode set by the user in a memory.

[0062] According to the embodiment of the present disclosure, the wireless charging device has a configurable multi-mode radiation safety control system. A plurality of regulatory parameter libraries corresponding to a plurality of regions are stored in the memory of the wireless charging device. Based on the location information fed back by the mobile terminal, the localized safety policy can be automatically loaded through the geo-fence recognition technology, and the power of the transmitted energy can be adjusted according to the radiation intensity information fed back by the mobile terminal to maximize the transmission power while ensuring compliance. On the other hand, user-defined policies can be provided through user settings to meet the special needs of special environments. In addition, an emergency protocol breakthrough mechanism can also be provided to support dynamic adjustment of safety thresholds in special application scenarios to ensure the continuous power supply needs of key equipment. For example, the wireless charging device according to the embodiment of the present disclosure can be used to provide energy support for mobile medical equipment. In certain circumstances, the safety threshold can be dynamically adjusted to ensure that mobile medical equipment can obtain stable energy in complex environments while ensuring the safety of patients and medical staff.

[0063] According to an embodiment of the present disclosure, the controller 200 is further configured to: establish a spatial energy distribution characteristic map; screen candidate transmission paths that meet a preset transmission efficiency based on the characteristic map; and dynamically adjust the system-level impedance matching of the wireless charging device according to real-time channel parameters.

[0064] According to an embodiment of the present disclosure, a wireless charging device provides an adaptive charging path construction method. A controller can establish a spatial energy distribution profile in wide-beam mode. Before energy transmission, the controller uses this profile to screen candidate energy transmission paths that meet a preset transmission efficiency threshold. Furthermore, the controller dynamically adjusts the system-level impedance matching of the wireless charging device based on the real-time channel parameters of the energy transmission channel.

[0065] The wireless charging device provided by the embodiments of the present disclosure can be applied to the following application scenarios.

[0066] Powering smart home devices and wearables

[0067] The wireless charging device according to the embodiment of the present disclosure can provide efficient and safe wireless energy transmission for smart home devices and / or wearable devices, ensuring that the devices can continue to be powered when moving.

[0068] Charging electric vehicles

[0069] During the charging process of an electric vehicle, the wireless charging device according to the embodiment of the present disclosure can quickly locate the vehicle and efficiently transmit energy while ensuring the safety of the driver and passengers.

[0070] Providing energy support for medical equipment

[0071] When used in medical equipment, the wireless charging device according to the embodiment of the present disclosure can ensure the stable operation of medical equipment in complex environments while protecting the safety of patients and medical staff.

[0072] Powering industrial automation equipment

[0073] In an industrial environment, the wireless charging device according to the embodiment of the present disclosure can provide stable energy transmission for automation equipment, resist external interference, and ensure the continuity of the production process.

[0074] Providing energy support for mobile medical equipment

[0075] The wireless charging device according to the embodiment of the present disclosure can provide real-time positioning and dynamically adjusted energy transmission for mobile medical devices, ensuring that the medical devices can work normally even when they are moving.

[0076] The present disclosure also provides a wireless charging method, which is applied to the wireless charging device according to the embodiment of the present disclosure.

[0077] Figure 5 A flow chart of a wireless charging method according to an embodiment of the present disclosure is shown.

[0078] like Figure 5 As shown, the wireless charging method according to an embodiment of the present disclosure includes the following steps S100 to S200.

[0079] In step S100 , during a search phase, a first feed source at a first position is activated to generate a first beam for scanning positioning.

[0080] In step S200 , during the energy transmission phase, a second feed source at a second position is activated to generate a second beam for transmitting energy, wherein a width of the first beam is greater than a width of the second beam.

[0081] Figure 6 Another flow chart of a wireless charging method according to an embodiment of the present disclosure is shown.

[0082] like Figure 6 As shown, the wireless charging method according to the embodiment of the present disclosure further includes the following steps S110 to S120.

[0083] In step S110, during the search phase, location information fed back by the mobile terminal is received, wherein the location information is used to indicate the location of the mobile terminal.

[0084] In step S120, a second position is determined according to the position information.

[0085] Figure 7 Another flow chart of a wireless charging method according to an embodiment of the present disclosure is shown.

[0086] like Figure 7 As shown, the wireless charging method according to the embodiment of the present disclosure further includes the following steps S210 to S220.

[0087] In step S210, in the energy transmission phase, energy information fed back by the mobile terminal is received, wherein the energy information is used to indicate an energy level received by the mobile terminal.

[0088] In step S220, the second position is re-determined based on the energy information.

[0089] The wireless charging method according to the embodiment of the present disclosure may further include: in the energy transmission stage, periodically receiving position information and energy information fed back by the mobile terminal; determining whether the mobile terminal is in an out-of-focus state based on the position information and energy information; in response to determining that the mobile terminal is in an out-of-focus state, performing at least one of the following: correcting the second position based on historical optimal parameters; re-entering the search stage, activating the first feed source at the first position to scan and locate the mobile terminal; resetting and calibrating the system-level parameters of the wireless charging device.

[0090] The wireless charging method according to the embodiment of the present disclosure may further include: during the energy transmission stage, receiving radiation intensity information fed back by the mobile terminal, wherein the radiation intensity information is used to represent the radiation intensity distribution in the surrounding environment of the mobile terminal; and determining the power of the transmitted energy based on the radiation intensity information.

[0091] It should be appreciated that the wireless charging method according to the embodiment of the present disclosure is applied to the wireless charging device according to each embodiment of the present disclosure, and the various details described in conjunction with the wireless charging device are not repeated here.

[0092] Those skilled in the art will appreciate that all or some of the steps, systems, and functional modules / units in the apparatus disclosed above may be implemented as software, firmware, hardware, or a suitable combination thereof.

[0093] In hardware implementations, the division between functional modules / units mentioned in the above description does not necessarily correspond to the division of physical components. For example, a physical component may have multiple functions, or a function or step may be performed by several physical components in cooperation.

[0094] Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit (CPU), a digital signal processor, or a microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit. Such software may be distributed on a computer-readable medium, which may include a computer storage medium (or non-transitory medium) and a communication medium (or temporary medium). As is well known to those skilled in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Computer storage media include, but are not limited to, random access memory (RAM, more specifically SDRAM, DDR, etc.), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory (FLASH) or other disk storage; compact disc (CD-ROM), digital versatile disc (DVD) or other optical disc storage; magnetic cassettes, tapes, disk storage or other magnetic storage; any other medium that can be used to store desired information and can be accessed by a computer. Furthermore, as is well known to those skilled in the art, communication media typically embodies computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

[0095] The present disclosure has disclosed example embodiments, and although specific terms are employed, they are used and should be interpreted only in a general illustrative sense and not for purposes of limitation. In some instances, it will be apparent to those skilled in the art that, unless otherwise expressly indicated, features, characteristics, and / or elements described in conjunction with a particular embodiment may be used alone or in combination with features, characteristics, and / or elements described in conjunction with other embodiments. Therefore, it will be understood by those skilled in the art that various changes in form and detail may be made without departing from the scope of the present disclosure as set forth in the appended claims.

Claims

1. A wireless charging device, comprising: Arc reflector antenna and controller, The arc reflector antenna includes a reflective panel and a plurality of feed sources, wherein the plurality of feed sources are located on the focal plane of the reflective panel. The controller is configured as follows: During the search phase, a first feed source at a first position is activated to generate a first beam for scanning positioning. During the energy transmission phase, a second feed source at a second position is activated to generate a second beam for transmitting energy. The width of the first beam is greater than the width of the second beam.

2. The wireless charging device according to claim 1, wherein: The controller includes a radio frequency switch, and the controller activates one or more feeds of the plurality of feeds through the radio frequency switch.

3. The wireless charging device according to claim 1, further comprising a communication unit, wherein the communication unit is configured to: receive location information fed back by the mobile terminal during the search phase, wherein: The location information is used to indicate the location of the mobile terminal. The controller is further configured to determine the second position according to the position information received by the communication unit.

4. The wireless charging device according to claim 3, wherein: The communication unit is further configured to: receive energy information fed back by the mobile terminal during the energy transmission phase, wherein the energy information is used to indicate an energy level received by the mobile terminal; The controller is further configured to: redetermine the second position according to the energy information.

5. The wireless charging device according to claim 4, wherein: The communication unit is further configured to: periodically receive the location information and the energy information fed back by the mobile terminal during the energy transmission phase; The controller is further configured to: determining whether the mobile terminal is in an out-of-focus state according to the position information and the energy information; In response to determining that the mobile terminal is in an out-of-focus state, performing at least one of the following: Correcting the second position based on historical optimal parameters; re-entering the search phase, activating the first feed source at the first position to scan and locate the mobile terminal; Reset and calibrate system-level parameters of the wireless charging device.

6. The wireless charging device according to claim 3, wherein: The communication unit is further configured to: receive radiation intensity information fed back by the mobile terminal during the energy transmission phase, wherein the radiation intensity information is used to represent the radiation intensity distribution in the surrounding environment of the mobile terminal; The controller is further configured to determine the power of transmission energy according to the radiation intensity information received by the communication unit.

7. The wireless charging device according to claim 3, further comprising a memory storing a plurality of regulatory parameter libraries corresponding to a plurality of regions, wherein: The regulatory parameter library at least includes radiation safety threshold parameters, The controller is further configured to: determining a corresponding regulatory parameter library among the plurality of regulatory parameter libraries according to the location information received by the communication unit; The power of the transmitted energy that meets the radiation safety threshold parameter is determined according to the determined regulatory parameter library.

8. The wireless charging device according to claim 7, further comprising an input interface for receiving an operation mode set by a user, wherein: The operating mode includes security levels, power limits, and authentication requirements and is stored in the memory.

9. The wireless charging device according to claim 1, wherein: The controller is further configured to: Establish a spatial energy distribution characteristic map; Screening candidate transmission paths that meet a preset transmission efficiency based on the characteristic graph; The system-level impedance matching of the wireless charging device is dynamically adjusted according to real-time channel parameters.

10. A wireless charging method, applied to a wireless charging device, wherein the wireless charging device includes a curved reflective antenna, the curved reflective antenna includes a reflective panel and multiple feed sources, the multiple feed sources being located on a focal plane of the reflective panel, the method comprising: During a search phase, activating a first feed at a first position to generate a first beam for scanning positioning; During the energy transmission phase, a second feed source at a second position is activated to generate a second beam for transmitting energy. The width of the first beam is greater than the width of the second beam.

11. The wireless charging method according to claim 10, further comprising: During the search phase, receiving location information fed back by the mobile terminal, wherein the location information is used to indicate the location of the mobile terminal; The second position is determined according to the position information.

12. The wireless charging method according to claim 11, further comprising: In the energy transmission phase, receiving energy information fed back by the mobile terminal, wherein the energy information is used to indicate an energy level received by the mobile terminal; The second position is re-determined according to the energy information.

13. The wireless charging method according to claim 12, further comprising: During the energy transmission phase, periodically receiving the location information and the energy information fed back by the mobile terminal; determining whether the mobile terminal is in an out-of-focus state according to the position information and the energy information; In response to determining that the mobile terminal is in an out-of-focus state, performing at least one of the following: Correcting the second position based on historical optimal parameters; re-entering the search phase, activating the first feed source at the first position to scan and locate the mobile terminal; Reset and calibrate system-level parameters of the wireless charging device.

14. The wireless charging method according to claim 11, further comprising: During the energy transmission phase, receiving radiation intensity information fed back by the mobile terminal, wherein the radiation intensity information is used to represent the radiation intensity distribution in the surrounding environment of the mobile terminal; The power of the transmission energy is determined according to the radiation intensity information.

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