Wireless charging device and method

Abstract

The invention relates to the technical field of wireless charging of electric vehicles, in particular to a wireless charging device and method. The acquisition assembly is used for acquiring parking vehicle information and power transmission end position information; the electric control unit is used for receiving a power receiving end position sent by the cloud server based on the parking vehicle information when it is judged that the parking vehicle has a charging demand according to the whole vehicle interaction information, and determining an optimal power transmitting end position according to the power receiving end position and the parking vehicle information; and the machine control unit is used for extending the power transmission end to the optimal power transmission end position so as to carry out wireless charging on the parked vehicle. Therefore, by judging the optimal power transmission end position and controlling the power transmission end to extend out, the problems that wireless charging equipment is easily polluted by foreign matters and the charging efficiency is low in the prior art are solved, the charging efficiency is improved, and the charging experience of a user is improved.

Description

Technical Field

[0001] The present application relates to the technical field of wireless charging of electric vehicles, and in particular to a wireless charging device and method. Background Art

[0002] Wireless charging of electric vehicle power batteries has become an important development direction of charging technology. Currently, wireless charging is mostly achieved by magnetic coupling.

[0003] In the related technology, the power receiving end is installed at the bottom of the vehicle, and the power transmitting end is installed on the ground. Charging can be started after the vehicle is parked at the power transmitting end. The electric energy is transmitted from the power grid to the vehicle's energy storage device through magnetic coupling.

[0004] However, the power transmission end of the wireless charging method in the related technology is fixed on the ground, which is easily contaminated by foreign objects and prone to safety accidents. Secondly, the power transmission end is generally fixed or has little freedom of movement, and cannot effectively adjust its position. The energy transmission efficiency is low, and it cannot be optimally coupled with the vehicle's power receiving end. The charging efficiency is not guaranteed, which needs to be solved urgently. Summary of the invention

[0005] The present application provides a wireless charging device and method to solve the problems in the related art that wireless charging equipment is easily contaminated by foreign objects and has low charging efficiency, thereby improving the charging efficiency and the user's charging experience.

[0006] A first aspect of the present application provides a wireless charging device, including:

[0007] Power transmission end;

[0008] A collection component is used to collect information about parked vehicles and the location of the power transmission end;

[0009] The power control unit is used to determine that the parked vehicle has a charging demand according to the whole vehicle interaction information, receive the power receiving terminal position sent by the cloud server based on the parked vehicle information, and determine the best power sending terminal position according to the power receiving terminal position and the parked vehicle information;

[0010] A machine control unit is used to extend the power sending end to the optimal power sending end position to wirelessly charge the parked vehicle.

[0011] Optionally, the wireless charging device further includes:

[0012] An energy modulator is connected to the power transmission end and is used to convert the alternating current or direct current provided by the power grid or the local energy storage device into alternating current of a preset frequency.

[0013] Optionally, the wireless charging device further includes:

[0014] A first detection component, used to detect the charging efficiency of the parked vehicle;

[0015] The second detection component is used to detect the current charging data of the parked vehicle.

[0016] Optionally, the energy modulator is also used to stop working when the charging efficiency is less than a preset efficiency or when it is determined based on the current charging data that the parked vehicle meets a preset charging stop condition, so that the power transmitting end no longer radiates energy to the power receiving end.

[0017] Optionally, the machine control unit is further used to retract the power transmission end to an original position after the energy modulator stops working.

[0018] Optionally, the wireless charging device further includes:

[0019] A third detection component is used to detect whether the wireless charging device has a fault;

[0020] The reminder component is used to provide a fault reminder when a fault occurs in the wireless charging device.

[0021] Optionally, the reminder component includes:

[0022] An acoustic reminder unit, used for providing an acoustic reminder when a fault occurs in the wireless charging device;

[0023] And / or, an optical reminder unit, used for providing an optical reminder when a fault occurs in the wireless charging device.

[0024] Optionally, the wireless charging device further includes:

[0025] The communication component is used to send a fault code to a preset mobile terminal when a fault occurs in the wireless charging device.

[0026] A second aspect of the present application provides a wireless charging method, using the wireless charging device shown in the first aspect of the present application, including the following steps:

[0027] Collect information about parked vehicles and the location of the power transmission end;

[0028] When it is determined that the parked vehicle has a charging demand according to the whole vehicle interaction information, the power receiving terminal position sent by the cloud server based on the parked vehicle information is received, and the optimal power transmitting terminal position is determined according to the power receiving terminal position and the parked vehicle information;

[0029] The power transmitting end is extended to the optimal power transmitting end position to wirelessly charge the parked vehicle.

[0030] Optionally, before extending the power transmitting end to the optimal power transmitting end position, the method further comprises:

[0031] Based on a preset self-check strategy, a self-check operation is performed on the wireless charging device.

[0032] Therefore, after the acquisition component collects the information of the parked vehicle and the location information of the power transmission end, the electric control unit determines whether the parked vehicle has a charging demand based on this information and the whole vehicle interaction information. Once the charging demand is confirmed, the electric control unit receives the location of the power receiving end sent by the cloud server based on the information of the parked vehicle, and determines the best location of the power transmission end based on the location of the power receiving end and the information of the parked vehicle. Then the control unit operates to move the power transmission end to the best location and start wireless charging of the vehicle. Therefore, by judging the best location of the power transmission end and controlling the extension of the power transmission end, the problems of wireless charging equipment being easily contaminated by foreign objects and low charging efficiency in related technologies are solved, the charging efficiency is improved, and the user's charging experience is improved.

[0033] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0035] Figure 1 A block diagram of a wireless charging device provided according to an embodiment of the present application;

[0036] Figure 2 A schematic diagram of the structure of a wireless charging device provided according to an embodiment of the present application;

[0037] Figure 3 A schematic diagram of the hardware design of a wireless charging device provided according to an embodiment of the present application;

[0038] Figure 4 A flowchart of a wireless charging method provided according to an embodiment of the present application;

[0039] Figure 5 The present invention is a flowchart of a wireless charging method according to an embodiment of the present application. DETAILED DESCRIPTION

[0040] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0041] The wireless charging device and method of the embodiment of the present application are described below with reference to the accompanying drawings. In view of the problem that the wireless charging device in the related art mentioned in the above background technology is susceptible to foreign matter contamination and low charging efficiency, the present application provides a wireless charging device. After the acquisition component collects the information of the parked vehicle and the position information of the power transmission end, the electric control unit determines whether the parked vehicle has a charging demand based on this information and the whole vehicle interaction information. Once the charging demand is confirmed, the electric control unit receives the position of the power receiving end sent by the cloud server based on the parked vehicle information, and determines the best power transmission end position based on the power receiving end position and the parked vehicle information. Then the control unit operates to move the power transmission end to the best position and starts wireless charging of the vehicle. Therefore, by judging the best power transmission end position and controlling the power transmission end to extend, the problems of the wireless charging device being susceptible to foreign matter contamination and low charging efficiency in the related art are solved, the charging efficiency is improved, and the user's charging experience is improved.

[0042] Specifically, Figure 1 A block diagram of a wireless charging device provided in an embodiment of the present application.

[0043] like Figure 1 As shown, the wireless charging device 10 includes: a power transmitting end 100 , a collection component 200 , a power control unit 300 and a machine control unit 400 .

[0044] Among them, the collection component 200 is used to collect the parked vehicle information and the power transmission end position information; the power control unit 300 is used to receive the power receiving end position sent by the cloud server based on the parked vehicle information when determining that the parked vehicle has a charging demand based on the whole vehicle interaction information, and determine the optimal power transmission end position based on the power receiving end position and the parked vehicle information; the machine control unit 400 is used to extend the power transmission end 100 to the optimal power transmission end position to wirelessly charge the parked vehicle.

[0045] It is understandable that, combined with Figure 1 and Figure 2 ,in, Figure 2Schematic diagram of the structure of a wireless charging device 10 provided in an embodiment of the present application; the structure of the wireless charging device 10 includes a control cabinet, a power transmission end 100, a transmission line and a mechanical arm. The wireless charging device 10 is installed behind or on the side of the parking space according to the requirements of the construction site; when there is no vehicle in the parking space or the vehicle does not need to be charged, the power transmission end 100 is hidden in the control cabinet; when a vehicle with charging requirements is parked in the parking space, the power transmission end 100 is extended to the bottom of the vehicle through the mechanical arm, and is coupled with the power receiving end of the vehicle to realize the transmission of electric energy; after the vehicle is charged, the power transmission end 100 is sent back to the control cabinet through the mechanical arm, and the charging process ends; the wireless charging device 10 can adopt a distributed design or a centralized design according to the scale of the charging site, and the difference lies in whether there is an energy modulator 500 in the control cabinet (the distributed design control cabinet contains an energy modulator 500; the centralized design control cabinet does not have an energy modulator 500, and the energy modulation is completed by the central distribution unit).

[0046] Optionally, in some embodiments, Figure 2 As shown, the wireless charging device 10 further includes an energy modulator 500. The energy modulator 500 is connected to the power transmission end 100 and is used to convert the AC or DC power provided by the power grid or the local energy storage device into AC power of a preset frequency.

[0047] Optionally, the energy modulator 500 is also used to stop working when the charging efficiency is less than a preset efficiency or when it is determined based on current charging data that the parked vehicle meets a preset stop charging condition, so that the power transmitting end 100 no longer radiates energy to the power receiving end.

[0048] The preset stop charging condition refers to the system automatically terminating the charging process according to the preset condition, which ensures the safety and efficiency of the charging process and prevents damage to the battery caused by overcharging. The preset frequency of alternating current and the preset efficiency can be thresholds preset by the user, thresholds obtained through a limited number of experiments, or thresholds obtained through a limited number of computer simulations, and are not specifically limited here.

[0049] It can be understood that the energy modulator 500 converts direct current or alternating current provided by the power grid or local energy storage device into alternating current of a specific frequency to adapt to the electromagnetic coupling conditions required for wireless charging; adjusts the frequency of the output alternating current to an optimized value to achieve the highest energy transmission efficiency and ensure the best match with the vehicle's power receiving end; the embodiment of the present application has built-in hardware protection functions such as overvoltage, undervoltage, overcurrent and overheating protection to prevent abnormal conditions from causing damage to the system; automatically stops working according to the charging efficiency and current charging data to ensure safety and avoid unnecessary energy waste; improves charging efficiency, enhances safety, extends battery life, and enhances the overall user experience.

[0050] Optionally, in some embodiments, the wireless charging device 10 further includes: a first detection component and a second detection component, wherein the first detection component is used to detect the charging efficiency of the parked vehicle; and the second detection component is used to detect the current charging data of the parked vehicle.

[0051] Optionally, in some embodiments, Figure 3 As shown, the wireless charging device 10 further includes: a third detection component (not shown) and a reminder component 600. The third detection component is used to detect whether the wireless charging device 10 has a fault; the reminder component 600 is used to provide a fault reminder when the wireless charging device 10 has a fault.

[0052] It is understandable that if Figure 3 As shown, Figure 3 The hardware design diagram of a wireless charging device 10 provided in the embodiment of the present application is as follows: the first detection component continuously monitors the charging efficiency of the parked vehicle to ensure that the energy transmission is in the optimal state; optimizes the charging performance and prolongs the life of the device. The second detection component collects a variety of charging data including battery power, charging speed, temperature, etc., and judges whether the vehicle meets the preset stop charging condition (such as the battery is full) based on the collected data; so that the embodiment of the present application can make an accurate response according to the actual situation and provide customized charging solutions according to different vehicle models and user preferences. The third detection component detects the operating status of the wireless charging device 10 itself, identifies potential problems, and discovers and reports in advance the fault points that may affect normal operation, such as hardware damage, poor connection, etc.; improves reliability and reduces maintenance costs; when the third detection component detects a fault, the reminder component 600 will immediately send an alarm to the user, and can provide specific fault information through sound, light or mobile application push messages, etc., to help users understand the problem and take corresponding measures, enhance user experience, shorten fault handling time, and improve the overall usability of the embodiment of the present application.

[0053] Optionally, in some embodiments, the reminder component 600 includes: an acoustic reminder unit for making an acoustic reminder when a fault occurs in the wireless charging device 10; and / or an optical reminder unit for making an optical reminder when a fault occurs in the wireless charging device 10.

[0054] It can be understood that by integrating the acoustic reminder unit and the optical reminder unit, the wireless charging device 10 can not only provide effective fault reminders locally, but also ensure the diversity and reliability of information transmission, thereby significantly improving the safety and user experience of the embodiment of the present application, providing users with a more comprehensive and timely fault warning mechanism, and helping to maintain the stable operation of the system.

[0055] Optionally, in some embodiments, the machine control unit 400 is further configured to retract the power transmitting end 100 to its original position after the energy modulator 500 stops working.

[0056] It is understandable that when the energy modulator 500 stops working due to charging completion, charging efficiency being lower than a preset value, or a fault being detected, the machine control unit 400 will trigger the recovery action of the power transmission end 100, and safely move it back from under the vehicle or other working position to the original hidden position (such as inside the control cabinet); retracting the power transmission end 100 can effectively prevent it from being exposed to the outside, reduce the risk of foreign matter contamination, and prevent unintentional collisions by pedestrians or vehicles, thereby improving safety; keeping the power transmission end 100 in a controlled environment can protect it from weather conditions and other environmental factors, thereby extending the service life of the equipment; the retracted power transmission end 100 is in standby mode, ready for the next charging cycle, ensuring that the equipment is in optimal condition before each charging begins.

[0057] Optionally, in some embodiments, Figure 3 As shown, the wireless charging device 10 further includes a communication component 700. The communication component 700 is used to send a fault code to a preset mobile terminal when a fault occurs in the wireless charging device 10.

[0058] It can be understood that by integrating the communication component 700, the wireless charging device 10 not only realizes the instant transmission of fault information, but also provides users with a more intelligent, reliable and easy-to-manage solution, significantly enhancing the safety and convenience of the system. It is of great significance to promote the development of wireless charging technology for electric vehicles, and also provides technical support for the construction of future intelligent transportation infrastructure.

[0059] In order for those skilled in the art to further understand the wireless charging device 10 of the embodiment of the present application, Figure 3 and Figure 4 The wireless charging device and the wireless charging method based on the wireless charging device according to the embodiment of the present application are described in detail by way of example.

[0060] Specifically, Figure 3As shown; the hardware of the wireless charging device 10 mainly includes an energy modulator 500, a camera, an electric control unit 300, a communication unit, a machine control unit 400, a low-voltage power supply, a transmission line, a robotic arm and a power transmission end 100. Among them, the energy modulator 500 converts the AC or DC power provided by the power grid or the local energy storage device into AC power of a certain frequency, and has the hardware protection function of over-voltage, under-voltage, over-current and overheating faults; the camera collects parking space information, parked vehicle information, and the position information of the power transmission end 100 and transmits it to the electric control unit; the electric control unit 300 receives the power grid or local energy storage device information, the camera collection information, and the whole vehicle interaction information, and realizes the functions of vehicle charging intention judgment, power transmission end 100 access and position control, charging information interaction, fault diagnosis and processing, cloud data interaction, etc.; the sound and light alarm receives the command of the electric control unit 300, sends out sound and light alarm information, and prompts Wake up the user; the communication unit realizes information interaction with the whole vehicle and the cloud; the machine control unit 400 controls the extension, retraction and position adjustment of the power sending end 100; the low-voltage power supply converts the AC or DC power provided by the power grid or the local energy storage device into 12V or 24V low-voltage power, and provides it to the internal controller, sensor and actuator for use; the transmission line transmits the electric energy modulated by the energy modulator 500 to the sending point end; the robotic arm can realize the control of the six positions of the power sending end 100: front, back, left, right and top; the power sending end 100 is the power transmission coupler, which can transmit the alternating electric energy generated by the energy modulator 500 to the on-board power receiving end through spatial coupling, so as to realize the charging of the whole vehicle.

[0061] Furthermore, if Figure 4 As shown, Figure 4 This is a flow chart of a wireless charging method according to an embodiment of the present application, comprising the following steps:

[0062] S401: Determine charging intention: The wireless charging device detects whether there is a vehicle parked in the parking space through a camera. If a vehicle is found, the communication unit is activated to establish communication with the vehicle through wireless communication to confirm whether the vehicle needs to be charged;

[0063] S402: Charging device self-awakening: When it is confirmed that charging is required, the wireless charging device jumps out of the low power consumption mode and starts all preset functions;

[0064] S403: Status self-check: The wireless charging device detects the status of all hardware modules through built-in sensors to ensure that all modules can work normally. If yes, execute step S404; otherwise, execute step S416;

[0065] S404: Vehicle identification: The wireless charging device packages the vehicle appearance information captured by the camera and the vehicle model information collected by wireless communication, and transmits them to the charging center cloud server to make vehicle model determination and receiving end position determination;

[0066] S405: Power transmission end position request: The cloud server sends the power transmission end position, and the electronic control unit calculates the best power transmission end position according to the vehicle parking position information. If the position can be calculated, if yes, execute step S406; otherwise, execute step S410;

[0067] S406: Extending the power transmitting end: The control unit of the wireless charging device extends the power transmitting end from the device to a designated position through a mechanical arm according to the power transmitting end position instruction, and the position is the calculated optimal charging position;

[0068] S407: Detection of the power transmission end in place: The wireless charging device detects the power transmission end position in real time and compares it with the target position to determine whether it has reached the preset position. If so, execute step S408; otherwise, execute step S407.

[0069] S408: Start charging: The wireless charging device exchanges charging information with the vehicle, adjusts the charging current and voltage according to the charging request information, and charges the entire vehicle.

[0070] S409: Charging efficiency detection: The wireless charging device calculates the charging efficiency in real time and compares it with the maximum charging efficiency on the cloud. When the efficiency is lower than a preset threshold, execute step S413; otherwise, execute step S414.

[0071] S410: Extending the power transmission end: The mechanical control unit of the wireless charging device extends the power transmission end from the device to a specified position through a mechanical arm according to the power transmission end position instruction, and the position is the center of the bottom of the vehicle.

[0072] S411: Detection of the power transmission end in place: The wireless charging device detects the power transmission end position in real time and compares it with the target position to determine whether it has reached the preset position. If so, execute step S412; otherwise, execute step S411.

[0073] S412: Start charging: The wireless charging device exchanges charging information with the vehicle, adjusts the charging current and voltage according to the charging request information, and after charging the entire vehicle, executes step S413.

[0074] S413: Determine charging cut-off condition: The wireless charging device monitors the charging data reported by the vehicle in real time and compares it with the charging threshold. When the cut-off condition is met, execute step S414; otherwise, execute step S413.

[0075] S414: Charging stops: the energy modulator in the wireless charging device stops working, no longer outputs alternating current, and the power transmitting end no longer radiates energy to the power receiving end.

[0076] S415: Charging end recovery: The wireless charging device control unit retracts the power transmitting end into the device through the mechanical arm. After it is in place, execute step S418.

[0077] S416: Sound and light alarm: The wireless charging device lights up the fault light of the wireless charging device and emits a prompt tone of "Charging device failure, please reselect the charging device" to remind the driver to leave.

[0078] S417: Maintenance request: The wireless charging device communication unit reports the fault code and maintenance request information to the maintenance center, and enters the low power consumption mode after completion.

[0079] S418: Charging ends: The wireless charging device communication unit uploads the charging data to the charging center cloud server, and the power control unit issues a power-off command to enter the low power consumption mode.

[0080] Therefore, the embodiments of the present application ensure the safety, efficiency and automation of wireless charging, while providing a good user experience and technical support mechanism.

[0081] According to the wireless charging device proposed in the embodiment of the present application, the collection component collects the information of the parked vehicle and the position information of the power transmission end; the power control unit is used to determine whether the parked vehicle has a charging demand based on the whole vehicle interaction information, receive the power receiving end position sent by the cloud server based on the parked vehicle information, and determine the best power transmission end position based on the power receiving end position and the parked vehicle information; the machine control unit is used to extend the power transmission end to the best power transmission end position to wirelessly charge the parked vehicle. Therefore, by judging the best power transmission end position and controlling the extension of the power transmission end, the problems of wireless charging equipment being easily contaminated by foreign objects and low charging efficiency in related technologies are solved, the charging efficiency is improved, and the user's charging experience is improved.

[0082] Next, the wireless charging method proposed according to the embodiment of the present application is described with reference to the accompanying drawings.

[0083] In this embodiment, the wireless charging method adopts Figure 1 The wireless charging device shown in the embodiment.

[0084] like Figure 5 As shown, the wireless charging method includes the following steps:

[0085] In step S501, the parked vehicle information and the power transmission end location information are collected.

[0086] In step S502, when it is determined that the parked vehicle has a charging demand based on the vehicle interaction information, the receiving terminal position sent by the cloud server based on the parked vehicle information is received, and the optimal power transmission terminal position is determined based on the receiving terminal position and the parked vehicle information.

[0087] In step S503, the power transmitting end is extended to an optimal power transmitting end position to wirelessly charge the parked vehicle.

[0088] Optionally, in some embodiments, before extending the power transmitting end to the optimal power transmitting end position, the method further includes: performing a self-check operation on the wireless charging device based on a preset self-check strategy.

[0089] It should be noted that the aforementioned explanation of the wireless charging device embodiment is also applicable to the wireless charging method of this embodiment, and will not be repeated here.

[0090] According to the wireless charging method proposed in the embodiment of the present application, after the acquisition component collects the information of the parked vehicle and the position information of the power transmission end, the electric control unit determines whether the parked vehicle has a charging demand based on this information and the whole vehicle interaction information. Once the charging demand is confirmed, the electric control unit receives the position of the power receiving end sent by the cloud server based on the information of the parked vehicle, and determines the best position of the power transmission end based on the position of the power receiving end and the information of the parked vehicle. Then the control unit operates to move the power transmission end to the best position and starts wireless charging of the vehicle. Therefore, by judging the best position of the power transmission end and controlling the extension of the power transmission end, the problems of wireless charging equipment being easily contaminated by foreign objects and low charging efficiency in the related technology are solved, the charging efficiency is improved, and the user's charging experience is improved.

[0091] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or N embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0092] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, "N" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0093] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code comprising one or more executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present application belong.

[0094] It should be understood that the various parts of the present application can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiment, the N steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0095] A person skilled in the art may understand that all or part of the steps in the method for implementing the above-mentioned embodiment may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiment.

Claims

1. A wireless charging device, characterized in that: include: Power transmission end; A collection component is used to collect information about parked vehicles and the location of the power transmission end; The power control unit is used to determine that the parked vehicle has a charging demand according to the whole vehicle interaction information, receive the power receiving terminal position sent by the cloud server based on the parked vehicle information, and determine the best power sending terminal position according to the power receiving terminal position and the parked vehicle information; A machine control unit is used to extend the power sending end to the optimal power sending end position to wirelessly charge the parked vehicle.

2. The wireless charging device according to claim 1, characterized in that: Also includes: An energy modulator is connected to the power transmission end and is used to convert the alternating current or direct current provided by the power grid or the local energy storage device into alternating current of a preset frequency.

3. The wireless charging device according to claim 2, characterized in that: Also includes: A first detection component, used to detect the charging efficiency of the parked vehicle; The second detection component is used to detect the current charging data of the parked vehicle.

4. The wireless charging device according to claim 3, characterized in that: The energy modulator is also used to stop working when the charging efficiency is less than a preset efficiency or when it is determined based on the current charging data that the parked vehicle meets a preset stop charging condition, so that the power transmitting end no longer radiates energy to the power receiving end.

5. The wireless charging device according to claim 4, characterized in that: The machine control unit is also used to retract the power transmission end to the original position after the energy modulator stops working.

6. The wireless charging device according to claim 1, characterized in that: Also includes: A third detection component is used to detect whether the wireless charging device has a fault; The reminder component is used to provide a fault reminder when a fault occurs in the wireless charging device.

7. The wireless charging device according to claim 6, characterized in that: The reminder component includes: An acoustic reminder unit, used for providing an acoustic reminder when a fault occurs in the wireless charging device; And / or, an optical reminder unit, used for providing an optical reminder when a fault occurs in the wireless charging device.

8. The wireless charging device according to claim 6, characterized in that: Also includes: The communication component is used to send a fault code to a preset mobile terminal when a fault occurs in the wireless charging device.

9. A wireless charging method, characterized in that: A wireless charging device according to any one of claims 1 to 8 is used, wherein the method comprises the following steps: Collect information about parked vehicles and the location of the power transmission end; When it is determined that the parked vehicle has a charging demand according to the whole vehicle interaction information, the power receiving terminal position sent by the cloud server based on the parked vehicle information is received, and the optimal power transmitting terminal position is determined according to the power receiving terminal position and the parked vehicle information; The power transmitting end is extended to the optimal power transmitting end position to wirelessly charge the parked vehicle.

10. The method according to claim 9, characterized in that Before extending the power transmitting end to the optimal power transmitting end position, the method further comprises: Based on a preset self-check strategy, a self-check operation is performed on the wireless charging device.

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