Vehicle wireless charging method and device, electronic equipment and storage medium

Abstract

The embodiment of the invention provides a vehicle wireless charging method and device, electronic equipment and a storage medium, and the method comprises the steps: obtaining the position information of to-be-charged equipment, the phase parameter information of a reconfigurable intelligent surface, and the beam forming vector information of a vehicle terminal antenna; determining channel state information of the candidate wireless charging link based on the position information and the phase parameter information; selecting a target wireless charging link from the candidate wireless charging links based on the beam forming vector information and the channel state information; and performing wireless charging on the to-be-charged equipment through the target wireless charging link. The technical problem of low charging efficiency and flexibility of the to-be-charged equipment in the vehicle cabin in the related technology is solved.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of wireless charging, and in particular, to a vehicle wireless charging method, device, electronic device, and storage medium. Background Art

[0002] Currently, the charging solutions in intelligent vehicle cockpits mainly rely on traditional wired charging interfaces (such as USB ports) and contactless wireless charging panels. However, with the increasing number and types of wireless terminals and smart wearable devices carried by passengers, the existing vehicle cockpit charging methods have the following problems:

[0003] (1) Low charging efficiency: Whether it is a wired charging interface or a contactless wireless charging panel, the number of them in the cockpit is limited, making it difficult to meet the need for simultaneous charging of multiple devices, resulting in low charging efficiency of the devices to be charged;

[0004] (2) Low charging method flexibility: The installation position of the wired charging interface in the vehicle cockpit is fixed, and contactless wireless charging requires the device to be charged to be accurately aligned with the wireless charging panel, reducing the convenience and flexibility of charging.

[0005] For the above problems, no effective solutions have been proposed yet. Summary of the Invention

[0006] The embodiments of the present application provide a vehicle wireless charging method, device, electronic device, and storage medium, aiming to improve the problems of low charging efficiency and flexibility of the devices to be charged in the vehicle cockpit in related technologies.

[0007] According to one embodiment of the present application, a vehicle wireless charging method is provided, including: obtaining the position information of the device to be charged, the phase parameter information of the reconfigurable intelligent surface, and the beamforming vector information of the vehicle terminal antenna; determining the channel state information of the candidate wireless charging link based on the position information and the phase parameter information; selecting a target wireless charging link from the candidate wireless charging links based on the beamforming vector information and the channel state information; and wirelessly charging the device to be charged through the target wireless charging link.

[0008] The above optional embodiments of the present application can achieve the following beneficial effects: By combining the domain control power distribution architecture and the reconfigurable intelligent surface technology, the coverage of the domain control power distribution is extended, so that the vehicle cockpit is not limited to traditional wired power transmission, but also includes non-contact wireless power transmission. Moreover, a target wireless charging link is selected for the device to be charged, and electric energy is allocated to the target wireless charging link, so that the target wireless charging link provides efficient and stable wireless charging services for the device to be charged, achieving the purpose of intelligent distribution of electric energy in the vehicle cockpit and non-contact charging of the device to be charged, thereby realizing the technical effect of efficient and flexible charging processing of the device to be charged, and further solving the technical problem of low charging efficiency and flexibility of the device to be charged in the vehicle cockpit in the related art.

[0009] Optionally, determining the channel state information of the candidate wireless charging link based on the position information and the phase parameter information includes: in response to determining that the candidate wireless charging link does not use the reconfigurable intelligent surface based on the position information, determining the channel state information based on the Rayleigh fading channel model; in response to determining that the candidate wireless charging link needs to use the reconfigurable intelligent surface based on the position information, determining the channel state information based on the Rayleigh fading channel model and the phase parameter information.

[0010] The above optional embodiments of the present application can achieve the following beneficial effects: The introduction of the reconfigurable intelligent surface can effectively expand the coverage of the vehicle terminal antenna. When the direct link between the vehicle terminal antenna and the wireless terminal is blocked, a new wireless charging link established by the reconfigurable intelligent surface can bypass the obstacle, thereby expanding the coverage of the domain control power distribution and realizing flexible wireless power transmission.

[0011] Optionally, selecting the target wireless charging link from the candidate wireless charging links based on the beamforming vector information and the channel state information includes: constructing an objective function of the candidate wireless charging link based on the beamforming vector information and the channel state information, where the objective function is used to determine the received power of the wireless charging signal; optimizing the objective function according to the constraint conditions and the preset rules to obtain an optimization result, where the constraint conditions include the transmission power constraint of the vehicle terminal antenna and the adjustment constraint of the phase parameter, and the preset rules are used to determine the optimization objective of the objective function; selecting the target wireless charging link from the candidate wireless charging links based on the optimization result.

[0012] The above optional embodiments of the present application can achieve the following beneficial effects: The optimization of the beamforming parameters and the phase parameters enables the vehicle wireless charging method to dynamically adjust resource allocation according to the real-time environment and device requirements, avoid energy waste, and improve the overall utilization efficiency of the electric energy resources in the cockpit.

[0013] Optionally, the optimization result includes a set of function values of the objective function. Selecting a target wireless charging link from candidate wireless charging links based on the optimization result includes: obtaining the set of function values, where the set of function values includes the function values corresponding to the candidate wireless charging links; screening the candidate wireless charging links based on the set of function values to obtain the target wireless charging link.

[0014] The above optional embodiment of the present application can achieve the following beneficial effects: By comparing the set of function values, the wireless charging link with the optimal signal strength among all candidate links can be identified, ensuring the selection of the optimal path for energy transmission.

[0015] Optionally, screening the candidate wireless charging links based on the set of function values to obtain the target wireless charging link includes: selecting a target function value from the set of function values based on a preset condition; comparing the target function value with a preset threshold to obtain a comparison result; in response to determining that the target function value is greater than or equal to the preset threshold according to the comparison result, determining the candidate wireless charging link corresponding to the target function value as the target wireless charging link, and configuring the target wireless charging link with the link parameters corresponding to the target function value.

[0016] The above optional embodiment of the present application can achieve the following beneficial effects: By introducing a preset threshold, it can ensure that the transmission quality of the selected target wireless charging link meets a certain standard, avoiding inefficient transmission due to environmental factors, and avoiding resource waste when activating the power transmission link. Only when the selected target wireless charging link meets a certain transmission efficiency condition, relevant components are activated for energy transmission, improving the reliability of energy distribution.

[0017] Optionally, the vehicle wireless charging method further includes: in response to determining that the target function value is less than the preset threshold according to the comparison result, controlling the area controller to distribute power to the charging seat; in response to not detecting that the charging seat charges the device to be charged within a preset duration, controlling the area controller to stop distributing power to the charging seat.

[0018] The above optional embodiment of the present application can achieve the following beneficial effects: When the transmission quality of the wireless power transmission link is low, it can automatically switch to the contact charging seat to ensure that there is at least one reliable charging solution available in the cockpit to meet the user's charging needs, thereby improving the user experience. And by detecting the usage status of the charging seat and stopping power distribution in a timely manner, it avoids continuous power supply when there is no device charging, reducing power waste.

[0019] Optionally, the vehicle wireless charging method further includes: obtaining the current charging state of the device to be charged based on a preset period; in response to the current charging state indicating that the device to be charged is in an unfinished wireless charging state, obtaining a current function value, where the current function value is determined based on a target function corresponding to a target wireless charging link; in response to the current function value being less than a preset threshold, stopping sending the wireless charging signal, and re-positioning the device to be charged to obtain position update information; and re-determining the target wireless charging link according to the position update information.

[0020] The above optional embodiments of the present application can achieve the following beneficial effects: by dynamically monitoring and responding to the position change and charging state of the device to be charged, the charging strategy is automatically adjusted, improving adaptability and flexibility, and being able to avoid inefficient energy transmission and ensure the efficient use of electric energy.

[0021] According to one embodiment of the present application, there is also provided a vehicle wireless charging device, including: an acquisition module that acquires the position information of the device to be charged, the phase parameter information of the reconfigurable intelligent surface, and the beamforming vector information of the vehicle terminal antenna; a first determination module that determines the channel state information of a candidate wireless charging link based on the position information and the phase parameter information; a second determination module that selects a target wireless charging link from the candidate wireless charging links based on the beamforming vector and the channel state information; and a control module that performs wireless charging on the device to be charged through the target wireless charging link.

[0022] Optionally, the first determination module is further configured to: in response to determining that the candidate wireless charging link does not use the reconfigurable intelligent surface based on the position information, determine the channel state information based on the Rayleigh fading channel model; in response to determining that the candidate wireless charging link needs to use the reconfigurable intelligent surface based on the position information, determine the channel state information based on the Rayleigh fading channel model and the phase parameter information.

[0023] Optionally, the second determination module is further configured to: construct a target function of the candidate wireless charging link based on the beamforming vector information and the channel state information, where the target function is used to determine the received power of the wireless charging signal; optimize the target function according to the constraint conditions and preset rules to obtain an optimization result, where the constraint conditions include the transmission power constraint of the vehicle terminal antenna and the adjustment constraint of the phase parameter, and the preset rules are used to determine the optimization objective of the target function; and select the target wireless charging link from the candidate wireless charging links based on the optimization result.

[0024] Optionally, the second determination module is further configured to: obtain a set of function values, where the set of function values includes the function values corresponding to the candidate wireless charging links; and screen the candidate wireless charging links based on the set of function values to obtain the target wireless charging link.

[0025] Optionally, the second determination module is further configured to: select a target function value from the set of function values based on a preset condition; compare the target function value with a preset threshold to obtain a comparison result; in response to determining, based on the comparison result, that the target function value is greater than or equal to the preset threshold, determine the candidate wireless charging link corresponding to the target function value as the target wireless charging link, and configure the target wireless charging link using the link parameters corresponding to the target function value.

[0026] Optionally, the vehicle wireless charging device further includes a processing module, configured to: in response to determining, based on the comparison result, that the target function value is less than the preset threshold, control the area controller to distribute power to the charging stand; in response to not detecting that the charging stand charges the device to be charged within a preset duration, control the area controller to stop distributing power to the charging stand.

[0027] Optionally, the obtaining module is further configured to: obtain the current charging state of the device to be charged based on a preset period; in response to the current charging state indicating that the device to be charged is in an incomplete wireless charging state, obtain the current function value, where the current function value is determined based on the target function corresponding to the target wireless charging link; the processing module is further configured to: in response to the current function value being less than the preset threshold, stop sending the wireless charging signal, and re-locate the device to be charged to obtain position update information; re-determine the target wireless charging link according to the position update information.

[0028] According to another aspect of the embodiments of the present application, an electronic device is provided, including a processor; a memory for storing processor-executable instructions; wherein the processor is configured to execute the instructions to implement the above vehicle wireless charging method.

[0029] According to another aspect of the embodiments of the present application, a computer-readable storage medium is provided, in which a computer program is stored, wherein the computer program is configured to execute the above vehicle wireless charging method when run by a processor.

[0030] According to another aspect of the embodiments of the present application, a computer program product is provided, including a computer program, and the computer program implements the above vehicle wireless charging method when executed by a processor. Description of the Drawings

[0031] Figure 1 is a flowchart of a vehicle wireless charging method provided by an embodiment of the present application;

[0032] Figure 2 is a schematic diagram of a vehicle wireless charging method provided by an embodiment of the present application;

[0033] Figure 3 is a schematic diagram of another vehicle wireless charging method provided by an embodiment of the present application;

[0034] Figure 4 It is a flowchart of yet another vehicle wireless charging method provided by an embodiment of the present application;

[0035] Figure 5 It is a flowchart of yet another vehicle wireless charging method provided by an embodiment of the present application;

[0036] Figure 6 It is a structural diagram of a vehicle wireless charging device provided by an embodiment of the present application;

[0037] Figure 7 It is a structural diagram of an electronic device provided by an embodiment of the present application. Detailed implementation manners

[0038] In order to make the technical problems, technical solutions and beneficial effects solved by the present application clearer and more understandable, the present application will be further described in detail below in conjunction with embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0039] Currently, in the field of power distribution in automotive cockpits, most mass-produced vehicle models still adopt the traditional power distribution strategy centered around the fuse box. Although this strategy is stable, for the growing non-contact charging demands in the cockpit, such as wireless charging of smart wearable devices and multiple mobile electronic devices, the traditional power distribution system lacks the ability of rapid response and flexible configuration. In contrast, only a few automotive manufacturers have begun to explore and adopt the domain control power distribution architecture to improve the intelligent level of power management inside the cockpit. However, even in these relatively advanced intelligent automotive cockpits, the charging methods for wireless devices still mainly rely on contact charging solutions that directly supply power through cables, such as USB charging panels and contactless wireless charging boards. In the related art, an independent power emission module is used to achieve automatic positioning and efficient charging of terminal devices inside the cockpit. However, the independent power emission module occupies the cockpit space in the non-charging state, resulting in idle and wasted hardware resources. These traditional charging methods, although meeting the charging demands to a certain extent, have obvious limitations in terms of flexibility and efficiency, and cannot cope with the growing non-contact charging demands, as well as optimize the distribution and utilization of power resources in the complex environment of the cockpit.

[0040] Some nouns or terms that appear during the description of the embodiments of the present application are applicable to the following explanations:

[0041] Reconfigurable Intelligent Surface (RIS): As a reflecting surface, it can dynamically adjust the amplitude and phase of incident electromagnetic waves to achieve optimized signal transmission. Even in the presence of obstacles, it can establish a new transmission link, reduce losses during energy transmission, and is applicable to wireless transmission of information and energy.

[0042] A vehicle wireless charging method provided by an embodiment of this application includes: obtaining the position information of the device to be charged, the phase parameter information of the reconfigurable intelligent surface, and the beamforming vector information of the vehicle terminal antenna; determining the channel state information of candidate wireless charging links based on the position information and the phase parameter information; selecting a target wireless charging link from the candidate wireless charging links based on the beamforming vector information and the channel state information; and wirelessly charging the device to be charged through the target wireless charging link.

[0043] The above vehicle wireless charging method provided by an embodiment of this application achieves the following technical effects: First, obtain the position information of the device to be charged, the phase parameter information of the reconfigurable intelligent surface, and the beamforming vector information of the vehicle terminal antenna; then, determine the channel state information of candidate wireless charging links based on the position information and the phase parameter information, and select a target wireless charging link from the candidate wireless charging links based on the beamforming vector information and the channel state information; finally, wirelessly charge the device to be charged through the target wireless charging link. By combining the domain control power distribution architecture and the reconfigurable intelligent surface technology, the coverage of the domain control power distribution is extended, so that the vehicle cockpit is not limited to traditional wired power transmission, but also covers non-contact wireless power transmission. In addition, select a target wireless charging link for the device to be charged and allocate electrical energy to the target wireless charging link, so that the target wireless charging link provides efficient and stable wireless charging services for the device to be charged, achieving the purpose of intelligent distribution of electrical energy in the vehicle cockpit and non-contact charging of the device to be charged, thereby achieving the technical effect of performing efficient and flexible charging processing on the device to be charged, and further solving the technical problem of low charging efficiency and flexibility of the device to be charged in the vehicle cockpit in the related art.

[0044] Embodiment 1

[0045] An embodiment of this application provides a vehicle wireless charging method. Please refer to Figure 1 , including the following steps:

[0046] Step S10: Obtain the position information of the device to be charged, the phase parameter information of the reconfigurable intelligent surface, and the beamforming vector information of the vehicle terminal antenna;

[0047] In step S10, the device to be charged is used to represent the terminal device in the vehicle cockpit that needs to be charged. For example, mobile phones, computers, smart wearable devices, etc.

[0048] The above phase parameter information is used to represent the phase adjustment ability of each reflection unit on the reconfigurable intelligent surface, which can affect the reflection characteristics of the wireless charging signal, so as to optimize the path of the wireless charging signal. For example, the phase parameter of the reconfigurable intelligent surface A is denoted as Φ a , and the phase parameter of the reconfigurable intelligent surface B is denoted as Φ b , taking Φ a as an example, it is shown in expression (1).

[0049]

[0050] Among them, Φ a is a diagonal matrix, represents the parameter of the first reflection unit on the reconfigurable intelligent surface A, β a,1 represents the amplitude of the reflection coefficient, θ a,1 represents the phase of the reflection coefficient, and M1 represents the total number of reflection units of the reconfigurable intelligent surface A.

[0051] The above vehicle terminal antenna is used to represent the antenna device installed on the vehicle for receiving and transmitting wireless signals. The above beamforming vector information is used to represent the signal transmission characteristics of the vehicle terminal antenna. By adjusting the signal transmission direction and intensity of the vehicle terminal antenna, the wireless energy transmission power between the vehicle terminal antenna and the device to be charged is enhanced. For example, the beamforming vector of the terminal antenna A is denoted as The beamforming vector of the terminal antenna B is denoted as Among them, represents the set of N×1 dimensional complex matrixes, N1 represents the number of antenna elements of the terminal antenna A; N2 represents the number of antenna elements of the terminal antenna B.

[0052] Specifically, the radio frequency link for performing wireless signal processing is integrated into the regional controller, and the regional controller and the vehicle terminal antenna jointly complete the receiving, transmitting and processing of wireless signals. The vehicle terminal antenna and the RIS jointly realize the non-contact power transmission of wireless power.

[0053] Step S12, determining the channel state information of the candidate wireless charging link based on the position information and the phase parameter information;

[0054] In step S12, the above channel state information is used to represent the signal strength, path loss, phase adjustment ability, etc. of the candidate wireless charging link.

[0055] Step S14, selecting the target wireless charging link from the candidate wireless charging links based on the beamforming vector information and the channel state information;

[0056] In step S14, the above-mentioned target wireless charging link is used to characterize the channel finally used to transmit wireless energy to the device to be charged.

[0057] Step S16, wirelessly charge the device to be charged through the target wireless charging link.

[0058] Specifically, Figure 2 is a schematic diagram of a vehicle wireless charging method provided by an embodiment of the present application. As Figure 2 shown, the figure includes a wireless terminal (201), a charging dock (202), a terminal antenna A (203), a regional controller A (204), a reconfigurable intelligent surface A (205), a terminal antenna B (206), a regional controller B (207), a reconfigurable intelligent surface B (208), and a central domain controller (209). The wireless terminal (201) is used to represent the device to be charged in the vehicle cockpit, and the terminal antenna A (203) and the terminal antenna B (206) are used to represent the vehicle terminal antennas. The radio frequency link that performs wireless signal processing is integrated into the regional controllers (204, 207). The regional controllers (204, 207) and the terminal antennas (203, 206) jointly complete the transceiver and processing of wireless signals. The terminal antennas (203, 206) and the reconfigurable intelligent surfaces (205, 208) jointly achieve non-contact long-distance transmission of wireless electrical energy, and the charging dock (202) is used to achieve contact-type short-distance transmission of electrical energy. The central domain controller (209) receives the channel state information fed back by all regional controllers (204, 207), optimizes the phase parameters and / or beamforming parameters, and makes a decision on the selection of the target wireless charging link, and sends the optimization and decision results to the regional controllers. The regional controllers control the reconfigurable intelligent surfaces, terminal antennas, and charging dock to implement the above processing results.

[0059] Furthermore, the vehicle head unit detects whether there is a wireless terminal initiating a wireless power transmission request. If there is a request, the host will feedback the request status to the central domain controller. After receiving the wireless power transmission request, the central domain controller sends the request to the regional controller. The regional controller jointly with the terminal antenna and the reconfigurable intelligent surface obtains the position information of the wireless terminal, and based on the position information and the phase parameter information of the RIS, determines the channel state information of the candidate wireless charging link; the central domain controller evaluates all candidate wireless charging links in combination with the channel state information and the beamforming vector information, and optimizes the phase parameters of the terminal antenna and / or the beamforming parameters of the RIS, and then determines the target wireless charging link. Finally, it controls the terminal antenna to send a wireless charging signal to the device to be charged via the target wireless charging link, so that the device to be charged enters the wireless charging state.

[0060] It should be noted that, Figure 2The number of the middle area controller, the terminal antenna, the reconfigurable intelligent surface, the wireless terminal and the charging stand is not limited to one. Figure 2 The wireless power transmission architecture shown in

[0061] Based on the above steps S10 to S16, first, obtain the position information of the device to be charged, the phase parameter information of the reconfigurable intelligent surface, and the beamforming vector information of the vehicle terminal antenna; then, determine the channel state information of the candidate wireless charging link based on the position information and the phase parameter information, and select the target wireless charging link from the candidate wireless charging links based on the beamforming vector information and the channel state information; finally, perform wireless charging on the device to be charged through the target wireless charging link. By combining the domain control power distribution architecture and the reconfigurable intelligent surface technology, the coverage of the domain control power distribution is extended, so that the vehicle cockpit is not limited to traditional wired power transmission, but also covers non-contact wireless power transmission. Moreover, select the target wireless charging link for the device to be charged and allocate power to the target wireless charging link, so that the target wireless charging link provides efficient and stable wireless charging services for the device to be charged, achieving the purpose of intelligent distribution of electric energy in the vehicle cockpit and non-contact charging of the device to be charged, thereby realizing the technical effect of efficient and flexible charging processing for the device to be charged, and further solving the technical problem of low charging efficiency and flexibility of the device to be charged in the vehicle cockpit in the related technology.

[0062] Optionally, in step S12, determining the channel state information of the candidate wireless charging link based on the position information and the phase parameter information includes:

[0063] Step S121, in response to determining that the candidate wireless charging link does not use the reconfigurable intelligent surface based on the position information, determine the channel state information based on the Rayleigh fading channel model;

[0064] Step S122, in response to determining that the candidate wireless charging link needs to use the reconfigurable intelligent surface based on the position information, determine the channel state information based on the Rayleigh fading channel model and the phase parameter information.

[0065] Specifically, Figure 3 is a schematic diagram of another vehicle wireless charging method provided by an embodiment of the present application. As Figure 3 shown, the introduction of the RIS can establish an additional transmission link between the terminal antenna and the wireless terminal. The transmission links established between the terminal antenna A and RISA include S1 and S2; the transmission links established between the terminal antenna B and RIS B include S3 and S4.

[0066] When it is determined based on the location information that the candidate wireless charging link does not use the RIS, that is, a direct transmission link can be established between the terminal antenna and the wireless terminal, the channel state information is determined based on the Rician fading channel model. Taking the direct establishment of the transmission link S1 between the terminal antenna A (203) and the wireless terminal (201) as an example, the channel state information is shown in Expression (2).

[0067]

[0068] Among them, and respectively represent the deterministic line-of-sight link component and the non-line-of-sight link Rician fading component, and β represents the Rician factor. ξ(d) represents the power gain caused by the distance-related path loss in the wireless transmission link, as shown in Expression (3).

[0069]

[0070] Among them, α represents the path loss exponent, d represents the link distance, and ξ0 represents the path loss at the reference distance d0 = 1m.

[0071] When it is determined based on the location information that the candidate wireless charging link needs to use the reconfigurable intelligent surface, that is, a cascaded transmission link is established between the terminal antenna and the wireless terminal by using the RIS, the channel state information is determined based on the Rician fading channel model and the phase parameter information. Taking the establishment of the cascaded transmission link S2 between the terminal antenna A (203) and the wireless terminal (201) by using the RIS A (205) as an example, the channel state information is shown in Expression (4).

[0072] h a2 =h au +h aru Φ a h ar (4)

[0073] Among them, h au represents the channel state information between the terminal antenna A and the wireless terminal, h aru represents the channel state information between the RIS A and the wireless terminal, Φ a represents the phase parameter of the RIS A, and h ar represents the channel state information between the terminal antenna A and the RIS A.

[0074] Furthermore, the channel state information of the direct establishment of the transmission link S3 between the terminal antenna B (206) and the wireless terminal (201) is: g b1 =h bu , and the channel state information of the establishment of the cascaded transmission link S4 between the terminal antenna B (206) and the wireless terminal (201) is: gb2 = h bu + h bru Φ b h br , where h bu represents the channel state information between the terminal antenna B (206) and the wireless terminal (201), and h bru represents the channel state information between the RIS B (208) and the wireless terminal (201), and Φ b represents the phase parameter of the RIS B (208), and h br represents the channel state information between the terminal antenna B (206) and the RIS B (208).

[0075] It should be noted that in Figure 3 , the terminal antenna A is not limited to establishing a wireless charging link with the RIS A. When the deployment location is appropriate, the terminal antenna A can establish a wireless charging link with the RIS B, or even establish wireless charging links with both the RIS A and the RIS B simultaneously. Figure 3 The candidate wireless charging links shown in

[0076] are only an optional embodiment.

[0077] Optionally, in step S14, selecting the target wireless charging link from the candidate wireless charging links based on the beamforming vector information and the channel state information includes:

[0078] Step S141, constructing an objective function for the candidate wireless charging links based on the beamforming vector information and the channel state information, where the objective function is used to determine the received power of the wireless charging signal;

[0079] Specifically, an objective function for the candidate wireless charging links is constructed according to the two-norm of the product of the beamforming vector of the terminal antenna and the channel state information. Taking the candidate wireless charging links S1 to S4 shown in Figure 3 as an example, the objective functions corresponding to S1, S2, S3, and S4 are respectively: where w a1Denote the beamforming vector of the terminal antenna A in S1 as w a2 Denote the beamforming vector of the terminal antenna A in S2; w b1 Denote the beamforming vector of the terminal antenna B in S3 as w b2 Denote the beamforming vector of the terminal antenna B in S4.

[0080] Step S142: Optimize the objective function according to the constraint conditions and preset rules to obtain the optimization result. Among them, the constraint conditions include the transmission power constraint of the vehicle terminal antenna and the adjustment constraint of the phase parameter, and the preset rules are used to determine the optimization objective of the objective function;

[0081] In step S142, the above preset rules are used to characterize that the optimization objective of the objective function is to maximize the two-norm of the product of the beamforming vector and the channel state information.

[0082] Specifically, taking Figure 3 S1 and S2 in as an example, the optimization process of S1 is shown in expression (5), and the optimization process of S2 is shown in expression (6).

[0083]

[0084] Among them, the constraint condition means that w a1 is limited by the maximum transmission power P of the terminal antenna A max1 , w a1 represents the beamforming vector of the terminal antenna A in S1.

[0085]

[0086] Among them, the constraint condition ‖w a2 ‖ 2 ≤P max1 means that w a2 is limited by the maximum transmission power P of the terminal antenna A max1 , w a2 represents the beamforming vector of the terminal antenna A in S2; the new constraint condition represents the actual adjustable range of the reconfigurable intelligent surface A.

[0087] Step S143: Select the target wireless charging link from the candidate wireless charging links based on the optimization result.

[0088] Specifically, after the central domain controller performs traversal optimization, it maximizes the objective function corresponding to the candidate wireless charging link and obtains the optimized beamforming parameters and / or phase parameters. For example, maximizing the objective function of S1 obtains the optimized beamforming parameters maximizing the objective function of S2 Obtain the optimized beamforming parameters and phase parameters Maximize the objective function of S3 Obtain the optimized beamforming parameters Maximize the objective function of S4 Obtain the optimized beamforming parameters and phase parameters It can be seen from this that the optimization result includes the function value after optimization of the objective function corresponding to the candidate wireless charging link, as well as the beamforming parameters and / or phase parameters corresponding to the candidate wireless charging link.

[0089] Based on the above steps S141 to S142, construct the objective function of the candidate wireless charging link based on the beamforming vector information and channel state information; optimize the objective function according to the constraint conditions and preset rules to obtain the optimization result; select the target wireless charging link from the candidate wireless charging links based on the optimization result. The optimization of the beamforming parameters and RIS phase parameters enables the method to dynamically adjust resource allocation according to the real-time environment and device requirements, avoid energy waste, and improve the overall utilization efficiency of the electrical energy resources in the cockpit.

[0090] Optionally, in step S143, the optimization result includes the function value set of the objective function. Selecting the target wireless charging link from the candidate wireless charging links based on the optimization result includes:

[0091] Step S31, obtain the function value set, where the function value set includes the function values corresponding to the candidate wireless charging links;

[0092] In step S31, the above function value set is used to represent the set corresponding to the function value after optimization (maximization) of the objective function corresponding to each candidate wireless charging link. For example, the function value set can be expressed as

[0093] Step S32, screen the candidate wireless charging links based on the function value set to obtain the target wireless charging link.

[0094] Based on the above steps S31 to S32, obtain the function value set, screen the candidate wireless charging links based on the function value set to obtain the target wireless charging link. By comparing the function value set, the wireless charging link with the optimal signal strength among all candidate links can be identified, ensuring the selection of the optimal path for energy transmission.

[0095] Optionally, in step S31, screening the candidate wireless charging links based on the function value set to obtain the target wireless charging link includes:

[0096] Step S311: Select a target function value from the set of function values based on a preset condition;

[0097] Step S312: Compare the target function value with a preset threshold to obtain a comparison result;

[0098] Step S313: In response to determining that the target function value is greater than or equal to the preset threshold based on the comparison result, determine the candidate wireless charging link corresponding to the target function value as the target wireless charging link, and configure the target wireless charging link using the link parameters corresponding to the target function value.

[0099] Specifically, select the maximum value in the set of function values as the target function value, denoted as where

[0100]

[0101] Compare with the preset function value threshold to obtain a comparison result, where the comparison result is used to represent whether it is greater than or equal to When it is determined based on the comparison result that is greater than or equal to then determine the candidate wireless charging link corresponding to as the target wireless charging link. For example, if then the target wireless charging link is selected as S1, and the terminal antenna A will transmit signals with beam, and RIS A and RIS B, and terminal antenna B will not work; if then the target wireless charging link is selected as S4, and the terminal antenna B will transmit signals with beam, the phase parameter of RIS B is set to and it starts to work, while the terminal antenna A and RIS A do not work.

[0102] Based on the above steps S311 to S313, a target function value is selected from the set of function values based on preset conditions; the target function value is compared with a preset threshold to obtain a comparison result; in response to determining that the target function value is greater than or equal to the preset threshold according to the comparison result, the candidate wireless charging link corresponding to the target function value is determined as the target wireless charging link, and the target wireless charging link is configured using the link parameters corresponding to the target function value. By introducing the preset threshold, it is possible to ensure that the transmission quality of the selected target wireless charging link meets certain standards, avoid inefficient transmission caused by environmental factors, and avoid waste of resources when activating the power transmission link. Only when the selected target wireless charging link meets certain transmission efficiency conditions, relevant components are activated for energy transmission, improving the reliability of energy distribution.

[0103] Optionally, the vehicle wireless charging method provided by the embodiments of the present application further includes:

[0104] Step S314, in response to determining that the target function value is less than the preset threshold according to the comparison result, controlling the area controller to distribute power to the charging seat;

[0105] Step S315, in response to not detecting that the charging seat charges the device to be charged within a preset duration, controlling the area controller to stop distributing power to the charging seat.

[0106] Specifically, when it is determined that the target function value is less than the preset threshold according to the comparison result, the central domain controller sends the comparison result to the host, and the host notifies the user that wireless power transmission cannot be started. At this time, the area controller distributes power to the charging seat and sets a timer. After starting the timer, it is detected whether there is a device to be charged placed on the charging seat within the preset duration. If there is a device to be charged placed on the charging seat, the area controller keeps distributing power to the charging seat until the device to be charged is fully charged or leaves. If there is no device to be charged placed on the charging seat, the area controller stops distributing power to the charging seat.

[0107] Based on the above steps S314 to S315, in response to determining that the target function value is less than the preset threshold according to the comparison result, the area controller distributes power to the charging seat; in response to not detecting that the charging seat charges the device to be charged within the preset duration, the area controller stops distributing power to the charging seat. When the transmission quality of the wireless power transmission link is low, it can automatically switch to the contact charging seat to ensure that there is at least one reliable charging solution available in the cockpit to meet the user's charging needs, thereby improving the user experience. Moreover, by detecting the usage status of the charging seat and stopping power distribution in a timely manner, continuous power supply without device charging is avoided, reducing power waste.

[0108] Optionally, the vehicle wireless charging method provided by the embodiments of the present application further includes:

[0109] Step S171, obtain the current charging state of the device to be charged based on a preset period.

[0110] Step S172, in response to the current charging state indicating that the device to be charged is in an incomplete wireless charging state, obtain the current function value, where the current function value is determined based on the target function corresponding to the target wireless charging link.

[0111] Step S173, in response to the current function value being less than a preset threshold, stop sending the wireless charging signal, and re-locate the device to be charged to obtain position update information.

[0112] Step S174, re-determine the target wireless charging link according to the position update information.

[0113] Specifically, after determining the target wireless charging link and controlling the terminal antenna to send a wireless charging signal to the device to be charged via the target wireless charging link to make the device to be charged enter the wireless charging state, obtain the current charging state of the device to be charged based on a preset period.

[0114] Specifically, if the current charging state indicates that the device to be charged is in an incomplete wireless charging state, obtain the current function value, and compare the current function value with the preset threshold for comparison. If the current function value is less than then stop sending the wireless charging signal, and re-locate the device to be charged to obtain position update information for a new round of target wireless charging link selection. If the current function value is greater than or equal to then control the terminal antenna to continue sending the wireless charging signal to the device to be charged via the target wireless charging link.

[0115] Specifically, if the current charging state indicates that the device to be charged is in an incomplete charging state, control the area controller to stop power distribution for the terminal antenna.

[0116] Based on the above steps S171 to S174, obtain the current charging state of the device to be charged based on a preset period; in response to the current charging state indicating that the device to be charged is in an incomplete wireless charging state, obtain the current function value; in response to the current function value being less than the preset threshold, stop sending the wireless charging signal, and re-locate the device to be charged to obtain position update information; re-determine the target wireless charging link according to the position update information, which can dynamically monitor and respond to the position change and charging state of the device to be charged, automatically adjust the charging strategy, improve the adaptability and flexibility, and can avoid inefficient energy transmission to ensure the efficient use of electric energy.

[0117] Figure 4It is a flowchart of another vehicle wireless charging method provided by an embodiment of the present application. As Figure 4 shown, the vehicle wireless charging method includes the following steps:

[0118] Step S401, the vehicle head unit detects whether there is a wireless power transmission request initiated by a terminal to be charged. If there is no wireless power transmission request initiated by a terminal to be charged, the process ends and the area controller stops distributing power to the terminal antenna or the charging dock. If there is a wireless power transmission request initiated by a terminal to be charged, the host feeds back the wireless power transmission request to the central domain controller;

[0119] Step S402, after receiving the wireless power transmission request, the central domain controller sends the request to the area controller. The area controller jointly uses the terminal antenna and the RIS to locate the terminal to be charged to obtain position information. Based on the position information and the phase parameter information of the RIS, the channel state information of the candidate wireless charging link is determined, and the channel state information is sent back to the central domain controller;

[0120] Step S403, the central domain controller evaluates the channel state information of all candidate wireless charging links, and determines the target wireless charging link based on the beamforming vector information and the channel state information;

[0121] Step 404: Compare the objective function value corresponding to the target wireless charging link with a preset threshold If the objective function value is greater than or equal to the preset threshold then the comparison result indicates that the wireless power transmission condition is met, and jump to execute step 405; otherwise, the comparison result indicates that the wireless power transmission condition is met, and jump to execute step 408;

[0122] Step 405: The central domain controller sends the beamforming parameters and / or phase parameters corresponding to the target wireless charging link to the area controller, which configures them to the terminal antenna and the RIS. The area controller controls the terminal antenna to send a wireless charging signal to the device to be charged via the target wireless charging link, and starts wireless power transmission;

[0123] Step 406: The device to be charged periodically uploads the charging status to the host, and the host sends the charging status to the central domain controller. The central domain controller determines whether the device to be charged is in the charging completed state. If the device to be charged is in the charging not completed state, jump to execute step 407; if the device to be charged is in the charging completed state, jump to execute step 411;

[0124] Step 407: The area controller periodically obtains the current function value corresponding to the target wireless charging link and feeds the current function value back to the central domain controller for index evaluation. If the current function value is lower than the preset threshold Then, the area controller stops wireless power transmission and jumps to execute step 402 to perform a new round of target wireless charging link selection; if the current function value is still higher than the preset threshold Then, it jumps to execute step 405, and the area controller maintains wireless power transmission;

[0125] Step 408: The central domain controller sends the comparison result to the host. The host notifies the user that wireless power transmission cannot be started, controls the area controller to distribute power to the charging stand, sets a timer, and executes step 409;

[0126] Step 409: Start the timer to detect whether a device to be charged is placed on the charging stand within the preset duration. If so, jump to execute step 410; otherwise, jump to execute step 411;

[0127] Step 410: The area controller maintains power distribution to the charging stand until the device to be charged is fully charged or leaves;

[0128] Step 411: The process ends, and the area controller stops distributing power to the terminal antenna or the charging stand.

[0129] Based on the above steps S401 to S411, the application scenarios of the current domain control power distribution are extended, so that the charging method of wireless terminals in the cockpit is not limited to wired and contact methods. By using the characteristics of the domain control architecture, the main modules for performing wireless power transmission are integrated into the domain controller to achieve shared use of hardware resources and improve utilization efficiency.

[0130] Figure 5 It is a flowchart of another vehicle wireless charging method provided by an embodiment of the present application, as Figure 5 shown Figure 5 The following is the specific process of determining the target wireless charging link.

[0131] Step S501, the area controller locates the device to be charged to obtain position information;

[0132] Step S502, based on the position information and phase parameter information, determine the channel state information of the candidate wireless charging link;

[0133] Step S503, the area controller sends the channel state information of the candidate wireless charging link to the central domain controller;

[0134] Step S504, the central domain controller constructs the objective function of the candidate wireless charging link based on the beamforming vector information and the channel state information of the candidate wireless charging link;

[0135] Step S505, optimize the objective function according to the constraint conditions and preset rules to obtain the optimization result;

[0136] Step S506: Screen the candidate wireless charging links based on the optimization results to obtain the target wireless charging link.

[0137] Based on the above steps S501 to S506, by combining the domain control power distribution architecture and the reconfigurable intelligent surface technology, the coverage of the domain control power distribution is extended, so that the vehicle cockpit is not limited to traditional wired power transmission, but also covers non-contact wireless power transmission. Moreover, a target wireless charging link is selected for the device to be charged, and electric energy is allocated to the target wireless charging link, so that the target wireless charging link provides efficient and stable wireless charging services for the device to be charged, achieving the purpose of intelligent distribution of electric energy in the vehicle cockpit and non-contact charging of the device to be charged. Thus, the technical effect of efficiently and flexibly charging the device to be charged is achieved, and further solves the technical problem of low charging efficiency and flexibility of the device to be charged in the vehicle cockpit in the related art.

[0138] Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by means of software plus a necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases, the former is a better implementation method. Based on such an understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. The computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes several instructions for causing a terminal device (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods described in the various embodiments of the present application.

[0139] Embodiment 2

[0140] The embodiment of the present application also provides a vehicle wireless charging device 60. Please refer to Figure 6 , Figure 6 which is a structural diagram of a vehicle wireless charging device provided by the embodiment of the present application, including: an acquisition module 610 for acquiring the position information of the device to be charged, the phase parameter information of the reconfigurable intelligent surface, and the beamforming vector information of the vehicle terminal antenna; a first determination module 620 for determining the channel state information of the candidate wireless charging link based on the position information and the phase parameter information; a second determination module 630 for selecting a target wireless charging link from the candidate wireless charging links based on the beamforming vector information and the channel state information; and a control module 640 for wirelessly charging the device to be charged through the target wireless charging link.

[0141] The above vehicle wireless charging device provided by the embodiments of the present application achieves the following technical effects: By combining the domain control power distribution architecture and the reconfigurable intelligent surface technology, the coverage of the domain control power distribution is extended, so that the vehicle cockpit is not limited to traditional wired power transmission, but also covers non-contact wireless power transmission. Moreover, a target wireless charging link is selected for the device to be charged, and electric energy is allocated to the target wireless charging link, so that the target wireless charging link provides efficient and stable wireless charging services for the device to be charged, achieving the purpose of intelligent distribution of electric energy in the vehicle cockpit and non-contact charging of the device to be charged, thereby achieving the technical effect of efficiently and flexibly charging the device to be charged, and further solving the technical problem of low charging efficiency and flexibility of the device to be charged in the vehicle cockpit in the related art.

[0142] It should be noted that the above-mentioned each module can be implemented by software or hardware. For the latter, it can be implemented in the following ways, but not limited to this: The above-mentioned modules are all located in the same processor; or, the above-mentioned each module is located in different processors in any combination form.

[0143] Embodiment III

[0144] The embodiments of the present application also provide an electronic device 70. Please refer to Figure 7 , Figure 7 is the structural diagram of the electronic device provided by an embodiment of the present application, including a processor 710 and a memory 720. Among them, the memory 710 is used to store a computer program; the processor 720 is used to execute the program stored on the memory 710 to implement the vehicle wireless charging method introduced in any embodiment of the present application.

[0145] Optionally, in this embodiment, the above-mentioned processor can be set to execute the following steps through a computer program:

[0146] Step S1, obtain the position information of the device to be charged, the phase parameter information of the reconfigurable intelligent surface, and the beamforming vector information of the vehicle terminal antenna;

[0147] Step S2, determine the channel state information of the candidate wireless charging link based on the position information and the phase parameter information;

[0148] Step S3, select a target wireless charging link from the candidate wireless charging links based on the beamforming vector information and the channel state information;

[0149] Step S4, perform wireless charging on the device to be charged through the target wireless charging link.

[0150] The above-mentioned electronic device provided by the embodiment of the present application achieves the following technical effects: By combining the domain control power distribution architecture and the reconfigurable intelligent surface technology, the coverage of domain control power distribution is extended, enabling the vehicle cockpit to not only be limited to traditional wired power transmission, but also cover non-contact wireless power transmission. Moreover, a target wireless charging link is selected for the device to be charged, and electric energy is allocated to the target wireless charging link, enabling the target wireless charging link to provide efficient and stable wireless charging services for the device to be charged, achieving the purpose of intelligent power distribution in the vehicle cockpit and non-contact charging of the device to be charged, thereby achieving the technical effect of efficiently and flexibly charging the device to be charged, and further solving the technical problem of low charging efficiency and flexibility of the device to be charged in the vehicle cockpit in the related art.

[0151] Those of ordinary skill in the art can understand that Figure 7 the structure shown is only schematic, and the electronic device can also be a terminal device such as a smart phone (such as an Android phone, an iOS phone, etc.), a tablet computer, a palm computer, and a Mobile Internet Device (MID for short). Figure 7 It does not limit the structure of the above-mentioned electronic device. For example, the electronic device 70 may further include more or fewer components (such as a network interface, a display device, etc.) than those shown Figure 7 in the figure, or have a different configuration from that shown Figure 7 in the figure.

[0152] Embodiment 4

[0153] The embodiment of the present application further provides a computer-readable storage medium, in which a computer program is stored, and when the computer program is executed by a processor, it implements the vehicle wireless charging method introduced in any embodiment of the present application.

[0154] Optionally, in this embodiment, the above storage medium may be set to store a computer program for performing the following steps:

[0155] Step S1, obtaining the location information of the device to be charged, the phase parameter information of the reconfigurable intelligent surface, and the beamforming vector information of the vehicle terminal antenna;

[0156] Step S2, determining the channel state information of the candidate wireless charging link based on the location information and the phase parameter information;

[0157] Step S3, selecting a target wireless charging link from the candidate wireless charging links based on the beamforming vector information and the channel state information;

[0158] Step S4, performing wireless charging on the device to be charged through the target wireless charging link.

[0159] Optionally, in this embodiment, the above storage medium may include, but is not limited to: various media that can store computer programs such as USB flash drives, read-only memories (ROM), random access memories (RAM), mobile hard disks, magnetic disks, or optical discs.

[0160] The above electronic device provided by the embodiments of the present application achieves the following technical effects: By combining the domain control power distribution architecture and the reconfigurable intelligent surface technology, the coverage of domain control power distribution is extended, so that the vehicle cockpit is not limited to traditional wired power transmission, but also covers non-contact wireless power transmission. Moreover, a target wireless charging link is selected for the device to be charged, and electric energy is allocated to the target wireless charging link, so that the target wireless charging link provides efficient and stable wireless charging services for the device to be charged, achieving the purpose of intelligent distribution of electric energy in the vehicle cockpit and non-contact charging of the device to be charged, thereby achieving the technical effect of efficiently and flexibly charging the device to be charged, and further solving the technical problem of low charging efficiency and flexibility of the device to be charged in the vehicle cockpit in the related art.

[0161] The above serial numbers of the embodiments of the present application are only for description and do not represent the advantages or disadvantages of the embodiments.

[0162] In the above embodiments of the present application, the descriptions of each embodiment have their own emphases. For the parts not detailed in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0163] In the present application, "a plurality of" means two or more.

[0164] In the present application, unless otherwise clearly defined, the terms "install", "connect", and "couple" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0165] The terms "first", "second", "third", "fourth", etc. (if any) in the present application are used to distinguish similar objects and do not necessarily describe a specific order or sequence.

[0166] The term "and / or" in the present application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in the present application generally represents an "or" relationship between the associated objects before and after.

[0167] Unless otherwise specified, all steps of this application can be carried out in sequence or randomly. For example, when the method includes steps A and B, it means that the method can include steps A and B carried out in sequence, or steps B and A carried out in sequence. For example, when it is mentioned that the method may further include step C, it means that step C can be added to the method in any order. For example, the method can include steps A, B, and C, or steps A, C, and B, or steps C, A, and B, etc.

[0168] The above are only the preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this application shall be included within the protection scope of this application.

Claims

1. A vehicle wireless charging method, characterized in that, Including: Obtain the location information of the device to be charged, the phase parameter information of the reconfigurable intelligent surface, and the beamforming vector information of the vehicle terminal antenna; Determine the channel state information of the candidate wireless charging link based on the location information and the phase parameter information; Select a target wireless charging link from the candidate wireless charging links based on the beamforming vector information and the channel state information; Wirelessly charge the device to be charged through the target wireless charging link.

2. The method according to claim 1, wherein Determining the channel state information of the candidate wireless charging link based on the location information and the phase parameter information includes: In response to determining that the candidate wireless charging link does not use the reconfigurable intelligent surface based on the location information, determine the channel state information based on the Rayleigh fading channel model; In response to determining that the candidate wireless charging link needs to use the reconfigurable intelligent surface based on the location information, determine the channel state information based on the Rayleigh fading channel model and the phase parameter information.

3. The method according to claim 1, characterized in that Selecting a target wireless charging link from the candidate wireless charging links based on the beamforming vector information and the channel state information includes: Construct a target function of the candidate wireless charging link based on the beamforming vector information and the channel state information, where the target function is used to represent the received power of the wireless charging signal; Optimize the target function according to the constraint conditions and preset rules to obtain an optimization result, where the constraint conditions include the transmission power constraint of the vehicle terminal antenna and the adjustment constraint of the phase parameter, and the preset rules are used to determine the optimization objective of the target function; Select the target wireless charging link from the candidate wireless charging links based on the optimization result.

4. The method according to claim 3, characterized in that, The optimization result includes a set of function values of the target function. Selecting the target wireless charging link from the candidate wireless charging links based on the optimization result includes: Obtain the set of function values, where the set of function values includes the function values corresponding to the candidate wireless charging links; Screen the candidate wireless charging links based on the set of function values to obtain the target wireless charging link.

5. The method according to claim 4, wherein Screening the candidate wireless charging links based on the set of function values to obtain the target wireless charging link includes: Select a target function value from the set of function values based on a preset condition; Compare the target function value with a preset threshold to obtain a comparison result; In response to determining that the target function value is greater than or equal to the preset threshold according to the comparison result, determine the candidate wireless charging link corresponding to the target function value as the target wireless charging link, and Configure the target wireless charging link with the link parameters corresponding to the target function value.

6. The method according to claim 5, characterized in that, The method further includes: In response to determining that the target function value is less than the preset threshold according to the comparison result, control the area controller to distribute power to the charging stand; In response to not detecting that the charging stand charges the device to be charged within a preset time period, control the area controller to stop distributing power to the charging stand.

7. The method according to claim 5, wherein The method further includes: Obtain the current charging state of the device to be charged based on a preset period; In response to the current charging state indicating that the device to be charged is in an incomplete wireless charging state, obtain the current function value, where the current function value is determined based on the target function corresponding to the target wireless charging link; In response to the current function value being less than the preset threshold, stop transmitting the wireless charging signal, and re-position the device to be charged to obtain position update information; Re-determine the target wireless charging link according to the position update information.

8. A vehicle wireless charging device, characterized in that, Includes: An acquisition module that acquires the position information of the device to be charged, the phase parameter information of the reconfigurable intelligent surface, and the beamforming vector information of the vehicle terminal antenna; A first determination module for determining the channel state information of the candidate wireless charging link based on the position information and the phase parameter information; A second determination module for selecting a target wireless charging link from the candidate wireless charging links based on the beamforming vector and the channel state information; A control module for wirelessly charging the device to be charged through the target wireless charging link.

9. An electronic device, characterized in that, Includes: A processor; A memory for storing instructions executable by the processor; Wherein, the processor is configured to execute the instructions to implement the vehicle wireless charging method according to any one of claims 1-7.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program, wherein the computer program is set to execute the vehicle wireless charging method according to any one of claims 1-7 when running.

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