Power supply method and device of edge node, controller, storage medium and vehicle

Abstract

The application relates to a power supply method and device of an edge node, a controller, a storage medium and a vehicle. The method comprises the following steps: receiving real-time power supply data collected by a target edge node; the target edge node is any edge node in a vehicle-mounted central centralized architecture, and the real-time power supply data is real-time power supply data of each load corresponding to the target edge node; determining a load power supply demand matched with a vehicle-mounted real-time scene; generating a power supply adjustment instruction corresponding to the target edge node based on the load power supply demand and the real-time power supply data, and sending the power supply adjustment instruction to the target edge node; the power supply adjustment instruction is used for instructing the target edge node to perform a power supply adjustment operation on each load. The energy efficiency of the whole vehicle power supply is improved, and power transmission imbalance is avoided.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to a power supply method, apparatus, controller, storage medium, and vehicle for an edge node. Background Technology

[0002] Current automotive electronic architectures employ a central controller and edge node layout. Edge nodes, utilizing Remote Control Protocol (RCP) chips, are distributed across various areas of the vehicle, responsible for collecting local sensor data and driving load execution. The central controller acts as the master node of the RCP network, integrating all functional software logic. Edge nodes establish communication connections with the central controller via the RCP bus. When using Power over Data Line (PDOL) power supply, the central controller acts as the power supply device, providing power to all edge nodes connected to the network.

[0003] In traditional technologies, the central controller uses a fixed power supply mode to all edge nodes, which results in a power transmission imbalance. Summary of the Invention

[0004] Therefore, it is necessary to provide a power supply method, device, controller, storage medium, and vehicle for edge nodes that can avoid power transmission imbalance in order to address the above-mentioned technical problems.

[0005] In a first aspect, this application provides a power supply method for edge nodes, the method being applied to an in-vehicle centralized architecture, the in-vehicle centralized architecture including a central controller and multiple edge nodes, the method being executed by the central controller, the method comprising:

[0006] Obtain the target distance value between the central controller and the target edge node; the target edge node is any edge node in the vehicle-mounted central centralized architecture;

[0007] Based on the target distance value, the power requirement value of the target edge node, and the preset power attenuation coefficient, the target output power of the central controller to the target edge node is determined;

[0008] Power is supplied to the target edge node according to the target output power.

[0009] In one embodiment, determining the target output power of the central controller to the target edge node based on the target distance value, the power requirement value of the target edge node, and a preset power attenuation coefficient includes:

[0010] Based on the target distance value and the power attenuation coefficient, the attenuation power between the central controller and the target edge node is determined;

[0011] The target output power is determined based on the attenuation power and the power demand value.

[0012] In one embodiment, determining the target output power based on the attenuation power and the power demand value includes:

[0013] The initial output power is determined based on the attenuation power and the power demand value;

[0014] The initial output power is adjusted based on the working status data of the target edge node to obtain the target output power; wherein the working status data includes signal strength and / or data transmission error rate.

[0015] In one embodiment, the operating status data includes signal strength; adjusting the initial output power based on the operating status data of the target edge node to obtain the target output power includes:

[0016] When the signal strength is greater than a first strength threshold, the initial output power is reduced by a first preset percentage to obtain the target output power;

[0017] When the signal strength is less than the second strength threshold, the initial output power is increased by a second preset ratio to obtain the target output power;

[0018] Wherein, the first intensity threshold is greater than the second intensity threshold.

[0019] In one embodiment, the operating status data includes the data transmission error rate; adjusting the initial output power based on the operating status data of the target edge node to obtain the target output power includes:

[0020] When the data transmission error rate is greater than the error rate threshold, the initial output power is increased by a third preset ratio to obtain the target output power.

[0021] In one embodiment, obtaining the target distance value between the central controller and the target edge node includes:

[0022] Send a detection signal to the target edge node;

[0023] Receive a feedback signal sent by the target edge node; the feedback signal is sent by the target edge node in response to the detection signal, and the feedback signal includes the received signal strength of the target edge node when it receives the detection signal;

[0024] Based on the transmitted signal strength and the received signal strength of the detected signal, the signal attenuation between the central controller and the target edge is determined;

[0025] The target distance between the central controller and the target edge is determined based on the signal attenuation amount and the preset signal attenuation coefficient.

[0026] In one embodiment, after supplying power to the target edge node according to the target output power, the method further includes:

[0027] Receive the actual received power fed back by the target edge node;

[0028] The target output power is adjusted based on the difference between the actual received power and the power demand value, and power is supplied to the target edge node based on the adjusted target output power.

[0029] In one embodiment, the process of determining the power demand value includes:

[0030] Obtain the load status of the target edge node;

[0031] Determine the power range that matches the load conditions of the target edge node;

[0032] The power requirement value is determined from the power range based on the real-time vehicle scenario.

[0033] Secondly, this application also provides a power supply device for an edge node, comprising:

[0034] The acquisition module is used to acquire the target distance value between the central controller and the target edge node; the target edge node is any edge node in the vehicle-mounted central centralized architecture.

[0035] The determination module is used to determine the target output power of the central controller to the target edge node based on the target distance value, the power demand value of the target edge node, and a preset power attenuation coefficient.

[0036] A power supply module is used to supply power to the target edge node according to the target output power.

[0037] Thirdly, this application also provides a central controller, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to perform the following steps:

[0038] Obtain the target distance value between the central controller and the target edge node; the target edge node is any edge node in the vehicle-mounted central centralized architecture;

[0039] Based on the target distance value, the power requirement value of the target edge node, and the preset power attenuation coefficient, the target output power of the central controller to the target edge node is determined;

[0040] Power is supplied to the target edge node according to the target output power.

[0041] Fourthly, this application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, performs the following steps:

[0042] Obtain the target distance value between the central controller and the target edge node; the target edge node is any edge node in the vehicle-mounted central centralized architecture;

[0043] Based on the target distance value, the power requirement value of the target edge node, and the preset power attenuation coefficient, the target output power of the central controller to the target edge node is determined;

[0044] Power is supplied to the target edge node according to the target output power.

[0045] Fifthly, this application also provides a computer program product, including a computer program that, when executed by a processor, performs the following steps:

[0046] Obtain the target distance value between the central controller and the target edge node; the target edge node is any edge node in the vehicle-mounted central centralized architecture;

[0047] Based on the target distance value, the power requirement value of the target edge node, and the preset power attenuation coefficient, the target output power of the central controller to the target edge node is determined;

[0048] Power is supplied to the target edge node according to the target output power.

[0049] Sixthly, this application also provides a vehicle, wherein...

[0050] The aforementioned edge node power supply method, device, controller, storage medium, and vehicle receive real-time power supply data collected by the target edge node. The target edge node is any edge node in the vehicle's central centralized architecture, and the real-time power supply data is the real-time power supply data of each load corresponding to the target edge node. The system determines the load power supply requirements matching the real-time vehicle scenario. Based on the load power supply requirements and real-time power supply data, it generates power supply adjustment instructions corresponding to the target edge node and sends these instructions to the target edge node. The power supply adjustment instructions instruct the target edge node to perform power supply adjustment operations on each load. Based on the quantitative relationship between distance, demand, and attenuation coefficient, the power supply output is transformed from a uniform standard to distance-based adaptive compensation. This overcomes the shortcomings of traditional equal-voltage power supply methods, such as insufficient power supply at far-end nodes due to line voltage drop and energy waste at near-end nodes due to insufficient line loss. Long-distance nodes receive sufficient power compensation, while short-distance nodes avoid unnecessary overvoltage output, reducing line heating and energy consumption. Transforming the power supply output from a uniform standard to distance-based adaptive compensation improves the overall vehicle power supply efficiency and avoids power transmission imbalance. Attached Figure Description

[0051] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments of this application or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0052] Figure 1 This is an application environment diagram of the power supply method for edge nodes in one embodiment;

[0053] Figure 2 This is a flowchart illustrating a power supply method for an edge node in one embodiment;

[0054] Figure 3 This is a schematic diagram showing the locations of the central controller and edge nodes;

[0055] Figure 4 This is a schematic diagram illustrating the communication between the central controller and each edge node.

[0056] Figure 5 This is a schematic diagram of the power output channel of the central controller;

[0057] Figure 6 This is a flowchart illustrating the power supply method for edge nodes in another embodiment;

[0058] Figure 7 This is a flowchart illustrating the power supply method for edge nodes in another embodiment;

[0059] Figure 8 This is a flowchart illustrating the power supply method for edge nodes in another embodiment;

[0060] Figure 9 This is a flowchart illustrating the power supply method for edge nodes in another embodiment;

[0061] Figure 10 This is a flowchart illustrating the power supply method for edge nodes in another embodiment;

[0062] Figure 11 This is a flowchart illustrating the power supply method for edge nodes in another embodiment;

[0063] Figure 12 This is a structural block diagram of the power supply device for an edge node in one embodiment;

[0064] Figure 13 This is an internal structure diagram of the central controller in one embodiment. Detailed Implementation

[0065] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0066] It should be noted that the terms "first," "second," etc., used in this application can be used to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish the first element from the second element. The terms "comprising" and "having," and any variations thereof, used in this application, are intended to cover non-exclusive inclusion. The term "multiple" used in this application refers to two or more. The term "and / or" used in this application refers to one of the embodiments, or any combination of multiple embodiments.

[0067] In a centralized automotive architecture, the central processing unit (CPU) acts as the central brain, responsible for global decision-making, complex logical operations, scene recognition, and power supply strategy formulation. The CPU does not directly control specific actuators but communicates with edge nodes distributed throughout the vehicle via a high-speed in-vehicle network. The CPU possesses greater computing power and storage capacity, enabling it to run advanced algorithms such as scene classification, load power demand prediction, and overall optimization of the vehicle's power supply status. Each edge node is responsible for a small physical area or a set of functionally related loads, integrating microcontrollers, sensors, power switches, and communication interfaces.

[0068] For example, in a vehicle central centralized architecture, the edge node responsible for the door controls multiple loads on the door, such as the window lift motor, door lock actuator, rearview mirror folding motor, ambient light, and door welcome light; the edge node responsible for the wiper is connected to the high and low speed windings of the wiper motor, intermittent relay, and rain sensor interface.

[0069] The power supply method for edge nodes provided in this application embodiment can be applied to, for example... Figure 1 In the application environment shown, the central controller 102 communicates with the target edge node 104, which is any one of multiple edge nodes in the vehicle-mounted centralized architecture. The data storage system can store the data that the central controller 102 needs to process. The data storage system can be integrated into the central controller 102 or placed in the cloud or on other network servers. The central controller 102 obtains the target distance value between itself and the target edge node 104, and then determines the target output power of the central controller to the target edge node based on the target distance value, the power requirement value of the target edge node 104, and a preset power attenuation coefficient.

[0070] In one embodiment, such as Figure 2 As shown, a power supply method for edge nodes is provided, which is applied to... Figure 1 Taking the central controller in the example, the explanation includes:

[0071] S201, obtain the target distance value between the central controller and the target edge node; the target edge node is any edge node in the vehicle-mounted central centralized architecture.

[0072] The target edge node can be any edge node in the vehicle's central architecture, such as a door node, window node, windshield wiper node, or light node.

[0073] In this embodiment, the central controller obtains the physical distance between itself and the target edge node, which is the target distance value. The central controller and the edge node are connected via an onboard wiring harness. The length of the harness is related to the installation position of the edge node in the vehicle. For example, as shown... Figure 3 As shown, the central controller is usually located near the dashboard or behind the glove box. The distance between the front edge node at the front of the vehicle and the central processor is relatively close, the distance between the middle edge node in the middle of the vehicle and the central processor is moderate, and the distance between the rear edge node at the rear of the vehicle and the central processor is relatively far.

[0074] As an optional implementation, during the vehicle production and assembly stage, the wiring harness length of each edge node is pre-stored in the memory of the central controller, so that the corresponding distance value can be directly obtained by looking up the table according to the node identifier of each edge node.

[0075] As an alternative implementation, a test pulse can be sent to the edge node and the time difference of the reflected echo can be measured. The actual distance can then be calculated based on the signal propagation speed in the harness.

[0076] Optional, such as Figure 4 As shown in the embodiment of this application, the communication between the central controller and each edge node can be implemented based on 10Base-T1S single-pair Ethernet technology. 10Base-T1S is an automotive-grade Ethernet physical layer technology defined in the IEEE 802.3cg standard. It uses a pair of unshielded twisted-pair cables as the transmission medium, provides a data transmission rate of 10Mbps, and is designed specifically for short-distance edge node connections within a vehicle.

[0077] S202, based on the target distance value, the power demand value of the target edge node, and the preset power attenuation coefficient, determine the target output power of the central controller to the target edge node.

[0078] The power attenuation coefficient is related to factors such as the material, cross-sectional area, ambient temperature, and transmission voltage of the harness, and can be obtained through experimental calibration.

[0079] In this embodiment, the power demand value represents the actual input power required by the entertainment edge node in its current working state. Optionally, the power demand value can be dynamically calculated based on the real-time working state of the target edge node's load; or, the power demand value can be pre-set based on scenario prediction.

[0080] Optionally, the target distance value, the power requirement value of the target edge node, and the preset power attenuation coefficient can be input into the preset model to obtain the target output power of the target edge node.

[0081] S203 supplies power to the target edge node according to the target output power.

[0082] In this embodiment, the central controller calls the internal power supply module according to the target output power to output the corresponding power to the target edge node.

[0083] Optionally, the central controller achieves precise power output by adjusting the voltage or current of the output channel based on the target output power value. For example, if the central controller uses a constant voltage power supply, it calculates the required output voltage based on the target output power and the equivalent load resistance of the edge node, and then adjusts the output voltage to the calculated value through a digital-to-analog converter; if the central controller uses a constant current power supply, it determines the quotient of the target output power divided by the nominal voltage and adjusts the output current to that quotient.

[0084] Optional, such as Figure 5As shown, the central controller typically integrates multiple adjustable power output channels, each connected to an edge node.

[0085] Optionally, during power supply, the central controller can also perform closed-loop adjustments based on real-time feedback. The central controller continuously monitors the actual voltage and current of the output channels, calculates the actual output power, and compares it with the target output power. If there is a deviation between the actual output power and the target value, the output voltage or current is further fine-tuned until the deviation is eliminated.

[0086] In the aforementioned edge node power supply control method, real-time power supply data collected by the target edge node is received. The target edge node is any edge node in the vehicle's central centralized architecture, and the real-time power supply data is the real-time power supply data of each load corresponding to the target edge node. The load power supply demand matching the real-time vehicle scenario is determined. Based on the load power supply demand and the real-time power supply data, a power supply adjustment command corresponding to the target edge node is generated and sent to the target edge node. The power supply adjustment command is used to instruct the target edge node to perform power supply adjustment operations on each load. Based on the quantitative relationship between distance, demand, and attenuation coefficient, the power supply output is transformed from a uniform standard to distance-based adaptive compensation. This overcomes the shortcomings of traditional equal-voltage power supply methods, such as insufficient power supply at far-end nodes due to line voltage drop and energy waste at near-end nodes due to insufficient line loss. Long-distance nodes receive sufficient power compensation, and short-distance nodes avoid unnecessary overvoltage output, reducing line heating and energy consumption. Transforming the power supply output from a uniform standard to distance-based adaptive compensation improves the energy efficiency of the vehicle's power supply and avoids power transmission imbalance.

[0087] In one embodiment, one implementation of S202 above is provided, such as... Figure 6 As shown, the above-mentioned "determining the target output power of the central controller to the target edge node based on the target distance value, the power demand value of the target edge node, and the preset power attenuation coefficient" includes:

[0088] S301 determines the attenuation power between the central controller and the target edge node based on the target distance value and the power attenuation coefficient.

[0089] In this embodiment of the application, based on the target distance value and the pre-stored power attenuation coefficient, the power lost on the line between the output of the central controller and the input of the target edge node is calculated, that is, the attenuation power.

[0090] Optionally, the target distance value can be multiplied by the power attenuation coefficient to obtain the attenuation power between the central controller and the target edge node.

[0091] S302 determines the target output power based on the attenuation power and power demand value.

[0092] In this embodiment, after obtaining the attenuated power, the central controller adds it to the power requirement of the target edge node to obtain the target output power that the central controller needs to output. The target output power can be expressed as P_opt = P + β × L. Where, P_min ≤ P ≤ P_max, P_opt is the target output power, that is, the optimal power supply of the target edge node, in watts; P_min is the minimum operating power of the target edge node, in watts, which is the minimum power used to ensure that the edge node can normally complete sensing acquisition, load driving and communication with the central brain, and avoid abnormal node operation due to insufficient power; P_max is the maximum operating power of the target edge node, in watts, which is the maximum power to avoid signal saturation and electromagnetic interference due to excessive power; β is the power attenuation compensation coefficient, in W / m, which is obtained by experimental calibration and is used to compensate for the power attenuation of the 10Base-T1S bus to ensure that the calculated P_opt is within a reasonable range under different spacings; L is the target distance value.

[0093] Optionally, the maximum and minimum operating power of the target edge node can be pre-stored in the central controller. The maximum and minimum operating power can be determined based on the operating parameters of the edge node, such as the operating power range of the RCP chip and the load drive power requirements.

[0094] In the above-mentioned embodiments, the impact of the target distance between the edge node and the central controller on power transmission is included in the calculation, so that the far-end node can obtain sufficient power compensation to avoid undervoltage, the near-end node can avoid over-power supply to reduce line heat generation, and the calculation of power attenuation for each edge node ensures that edge nodes with different distances and different power requirements can obtain matching power supply.

[0095] In one embodiment, one implementation of S302 described above is provided, such as... Figure 7 As shown, the above "based on attenuation power and power demand values" includes:

[0096] S401 determines the initial output power based on the attenuation power and power demand value.

[0097] In this embodiment, the sum of the attenuation power and the power demand value is determined as the initial output power. The initial output power characterizes the power that the central controller should output, considering only line transmission loss compensation. For example, when the power demand value is 100 watts and the attenuation power is 13.9 watts, the initial output power is determined to be 113.9 watts; when the power demand value is 5 watts and the attenuation power is 0.009 watts, the initial output power is determined to be 5.009 watts.

[0098] S402 adjusts the initial output power based on the working status data of the target edge node to obtain the target output power.

[0099] The operational status data includes signal strength and / or data transmission error rate (BER), used to characterize the communication quality and stability of the target edge nodes. Signal strength represents the amplitude of the communication signal received by the edge node from the central controller, typically expressed as a received signal strength indicator; data transmission error rate represents the probability of bit errors occurring during data exchange between the edge node and the central controller.

[0100] In this embodiment of the application, after calculating the initial output power, the central controller further acquires the working status data of the target edge node, and dynamically adjusts the initial output power according to the working status data of the target edge node to obtain the target output power.

[0101] Optionally, after determining the initial output power, the central controller can first supply power to the target edge node based on the initial output power, and then adjust the initial output power based on the working status data fed back by the target edge node under the initial output power to obtain the target output power.

[0102] It should be noted that when the power supply to the edge node is insufficient, the internal circuitry of the edge node will be unstable, which will lead to a decrease in signal strength or an increase in bit error rate; when the power supply to the edge node is excessive, the signal strength will be too high, resulting in energy waste.

[0103] As an optional implementation, when the operating status data includes signal strength, such as... Figure 8 As shown, the above "adjusting the initial output power based on the working status data of the target edge node to obtain the target output power" includes:

[0104] S501, when the signal strength is greater than the first strength threshold, the initial output power is reduced by a first preset ratio to obtain the target output power.

[0105] S502, when the signal strength is less than the second strength threshold, the initial output power is increased by a second preset ratio to obtain the target output power; wherein, the first strength threshold is greater than the second strength threshold.

[0106] In this embodiment, a first strength threshold and a second strength threshold are preset, wherein the first strength threshold is greater than the second strength threshold. The first strength threshold represents the threshold for determining excessively high signal strength, and the second strength threshold represents the threshold for determining excessively low signal strength. When the signal strength reported by the target edge node is greater than the first strength threshold, it indicates that the current power supply is too high, resulting in excessively high communication signal amplitude, which may even cause signal distortion or saturation of the receiving circuit. When the signal strength reported by the target edge node is less than the second strength threshold, it indicates that the current power supply is too low, and the communication circuit of the edge node cannot obtain sufficient voltage or current to maintain a normal signal transmission amplitude, which may lead to communication interruption or data loss.

[0107] For example, the first intensity threshold can be -30dBm and the second intensity threshold can be -50dBm.

[0108] For example, when the signal strength reported by the target edge node is greater than a first strength threshold, the initial output power is reduced by 5%-10% to obtain the target output power. For instance, if the initial output power is 113.9 watts and the first preset ratio is 5%, the reduced target output power is approximately 108.2 watts.

[0109] For example, when the signal strength reported by the target edge node is less than the second strength threshold, the initial output power is increased by 5%-10% to obtain the target output power. For instance, if the initial output power is 113.9 watts and the second preset ratio is 8%, the increased target output power is approximately 123.0 watts.

[0110] As another optional implementation, when the working status data includes the data transmission error rate, the above-mentioned "adjusting the initial output power according to the working status data of the target edge node to obtain the target output power" includes: when the data transmission error rate is greater than the error rate threshold, increasing the initial output power by a third preset ratio to obtain the target output power.

[0111] In this embodiment, when the frequency of bit errors in the data received by the central controller from the target edge node exceeds the bit error rate threshold, it indicates that the target edge node may be operating in an unstable state due to insufficient power supply, thus causing errors during data transmission. Therefore, the initial output power is increased by a third preset percentage to obtain the target output power.

[0112] For example, the data transmission error rate is greater than 10. -5 At this time, the initial output power is increased by 5%-10% to obtain the target output power.

[0113] In the above-mentioned application embodiments, based on distance compensation, additional losses caused by other dynamic factors are further incorporated, making power supply regulation more accurate, preventing communication interruptions caused by undervoltage, and avoiding energy waste caused by overvoltage.

[0114] In one embodiment, one implementation of S201 above is provided, such as... Figure 9 As shown, the above-mentioned "obtaining the target distance value between the central controller and the target edge node" includes:

[0115] S601 sends a detection signal to the target edge node.

[0116] In this embodiment, the central brain periodically sends detection signals at a specific frequency through a spacing sensing unit. Optionally, the detection signal can be a test message with known transmission power and known signal characteristics, transmitted via the vehicle communication link between the central controller and the edge nodes. The transmission signal strength of the detection signal is controlled by the power amplifier circuit inside the central controller, and the transmission signal strength is recorded as S0.

[0117] Optionally, the vehicle communication link is 10Base-T1S, and the detection signal frequency is different from the 10Base-T1S data signal to avoid interference.

[0118] S602 receives feedback signals sent by the target edge node.

[0119] The feedback signal is sent by the target edge node in response to the detection signal, and includes the received signal strength of the target edge node when it receives the detection signal.

[0120] In this embodiment of the application, the target edge node receives the detection signal based on the vehicle communication link, records the received signal strength, encapsulates the received signal strength, and feeds it back to the central controller through the vehicle communication link.

[0121] S603 determines the signal attenuation between the central controller and the target edge based on the transmitted and received signal strengths of the detected signal.

[0122] In this embodiment, the difference between the transmitted signal strength and the received signal strength is determined, and this difference is defined as the signal attenuation between the central controller and the target edge. For example, the signal attenuation can be expressed as A = S0 - S1, where S1 is the received signal strength.

[0123] S604 determines the target distance between the central controller and the target edge based on the signal attenuation amount and the preset signal attenuation coefficient.

[0124] Optionally, the signal attenuation coefficient can be an experimental calibration value; alternatively, the signal attenuation coefficient can be determined based on the reference spacing and attenuation reference value corresponding to the target edge nodes pre-stored in the central controller. The reference spacing and attenuation reference value are the vehicle's calibration data, and the signal attenuation coefficient can be the ratio of the reference spacing to the attenuation reference value. Determining the signal attenuation coefficient based on the reference spacing and attenuation reference value corresponding to the target edge nodes pre-stored in the central controller eliminates perception deviations caused by bus loss, ambient temperature, and electromagnetic interference compared to the experimental calibration value.

[0125] In this embodiment of the application, the target distance value is the quotient of the signal attenuation amount and the preset signal attenuation coefficient, i.e., L=A / k, where L is the target distance value and k is the signal attenuation coefficient.

[0126] Optionally, the central controller periodically determines the distance between the edge nodes and the central controller, and updates the precise spacing of each edge node in real time to ensure the real-time nature of spacing perception and adapt to scenarios such as bus deformation and slight node displacement that may occur during vehicle operation. For example, the period can be 100ms.

[0127] In the above-mentioned embodiments, the central controller can adaptively acquire the attenuation characteristics of the actual transmission path, thereby compensating for the power loss of the line based on the attenuation characteristics and the target distance value, and avoiding power transmission imbalance.

[0128] In one embodiment, after powering the target edge node according to the target output power, such as Figure 10 As shown, the power supply method for the aforementioned edge nodes further includes:

[0129] S701 receives the actual received power fed back by the target edge node.

[0130] The actual received power refers to the power value actually measured at the input end of the target edge node, that is, the effective power actually obtained by the edge node after the transmission loss of the wire harness.

[0131] In this embodiment, the central controller receives the actual received power from the target edge node in real time while supplying power to the target edge node according to the target output power. The edge node encapsulates this actual received power into a feedback message via the vehicle network and sends it to the central controller. The central controller receives the feedback message and extracts the value of the actual received power from it. For example, the central controller is currently supplying power at a target output power of 113.9 watts, with a power requirement of 100 watts, but the actual received power reported by the target edge node is 95 watts, which is lower than its power requirement of 100 watts.

[0132] Optionally, the target edge node integrates a power detection circuit that can measure the input voltage and input current in real time and multiply the two to obtain the actual received power.

[0133] S702 adjusts the target output power based on the difference between the actual received power and the power demand value, and supplies power to the target edge node based on the adjusted target output power.

[0134] In this embodiment, the difference between the actual received power and the power demand is calculated. If the actual received power is lower than the power demand, it indicates that the line loss exceeds expectations and the target edge node is underpowered; if the actual received power is higher than the power demand, it indicates that the line loss is lower than expected and the target edge node is overpowered. The central controller performs closed-loop adjustment of the current target output power based on the sign and magnitude of this difference.

[0135] For example, if the actual received power is 5 watts lower than the power requirement, the central controller increases the target output power by 5 watts to compensate for the extra line losses. If the actual received power is 3 watts higher than the power requirement, the central controller reduces the target output power by 3 watts to avoid energy waste. After adjustment, the central controller continues to supply power to the edge nodes according to the new target output power and receives feedback on the actual received power from the edge nodes again, forming a continuous closed-loop regulation.

[0136] In the above-mentioned embodiments, online compensation for additional power transmission errors caused by other dynamic factors is achieved without offline correction, ensuring that the target edge node always receives a matching power supply and avoiding functional abnormalities caused by undervoltage and energy waste caused by overvoltage.

[0137] In one embodiment, such as Figure 11 As shown, the process for determining the above power demand value includes:

[0138] S801, obtain the load status of the target edge node.

[0139] The load information can include the type, quantity, and working status of each load currently connected to and managed by the target edge node.

[0140] In this embodiment, the central controller can obtain the load status of the target edge node through the vehicle communication link with the edge node. For example, the load status of the door edge node may include the window lift motor being stationary, the door lock motor being in standby mode, the rearview mirror folding motor being running, and the ambient lights being off.

[0141] S802, determine the power range that matches the load conditions of the target edge node.

[0142] The power range refers to the interval between the minimum and maximum power required for all current loads to operate normally.

[0143] In this embodiment, the central controller can traverse all loads of the target edge node, and sum the minimum possible power and maximum possible power of each load in the current state to obtain the total minimum operating power and maximum operating power, thereby forming a power range.

[0144] S803 determines the power requirement value from the power range based on the real-time vehicle scenario.

[0145] The real-time in-vehicle scenarios include highway cruising, urban congestion, driving in the rain, tunnel passage, and parking.

[0146] In this embodiment, the central controller can determine the power demand value under the current vehicle real-time scenario from the power range based on the power correspondence table of the target edge node.

[0147] For example, when the vehicle is driving in the rain, the rearview mirror heating function in the door edge node has a higher priority. The central controller will select a value close to the upper limit of the power range as the power requirement value to ensure that the heating wire receives enough power to quickly defog. When the vehicle is parked and the weather is sunny, the rearview mirror heating function is not necessary. The central controller will select a value close to the lower limit of the power range as the power requirement value to save the energy consumption of the whole vehicle.

[0148] In the above-mentioned application embodiments, the power demand value is adjusted in real time according to the dynamic changes in load and scene switching, so that the power demand value is more matched with the current state of the target edge node, and further avoids power excess or power deficiency.

[0149] In one embodiment, a complete power supply method for an edge node is provided, including:

[0150] S1 sends a detection signal to the target edge node.

[0151] S2, receive the feedback signal sent by the target edge node; the feedback signal is sent by the target edge node in response to the detection signal, and the feedback signal includes the received signal strength of the target edge node receiving the detection signal.

[0152] S3 determines the signal attenuation between the central controller and the target edge based on the transmitted and received signal strengths of the detected signal.

[0153] S4 determines the target distance between the central controller and the target edge based on the signal attenuation amount and the preset signal attenuation coefficient.

[0154] S5 determines the attenuation power between the central controller and the target edge node based on the target distance value and the power attenuation coefficient.

[0155] S6, obtain the load status of the target edge node.

[0156] S7, determine the power range that matches the load conditions of the target edge node.

[0157] S8 determines the power requirement value from the power range based on the real-time vehicle scenario.

[0158] S9 determines the initial output power based on the attenuation power and power demand value.

[0159] S10, adjust the initial output power according to the working status data of the target edge node to obtain the target output power; wherein, the working status data includes signal strength and / or data transmission error rate.

[0160] S11, supply power to the target edge node according to the target output power.

[0161] S12, Receive the actual received power fed back by the target edge node.

[0162] S13, adjust the target output power based on the difference between the actual received power and the power demand value, and supply power to the target edge node based on the adjusted target output power.

[0163] In the aforementioned power supply method for edge nodes, real-time power supply data collected by the target edge node is received. The target edge node is any edge node in the vehicle's central centralized architecture, and the real-time power supply data is the real-time power supply data of each load corresponding to the target edge node. The power supply requirements of the loads matching the real-time vehicle scenario are determined. Based on the load power supply requirements and the real-time power supply data, a power supply adjustment command corresponding to the target edge node is generated and sent to the target edge node. The power supply adjustment command is used to instruct the target edge node to perform power supply adjustment operations on each load. Based on the quantitative relationship between distance, demand, and attenuation coefficient, the power supply output is transformed from a uniform standard to distance-adaptive compensation. This overcomes the shortcomings of traditional equal-voltage power supply methods, such as insufficient power supply at far-end nodes due to line voltage drop and energy waste at near-end nodes due to insufficient line loss. Long-distance nodes receive sufficient power compensation, and short-distance nodes avoid unnecessary overvoltage output, reducing line heating and energy consumption. Transforming the power supply output from a uniform standard to distance-adaptive compensation improves the energy efficiency of the vehicle's power supply and avoids power transmission imbalance.

[0164] It should be understood that although the steps in the flowcharts of the embodiments described above are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the embodiments described above may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages in other steps. It is understood that the steps in different embodiments can be freely combined as needed, and all non-contradictory solutions formed by such combinations are within the scope of protection of this application.

[0165] Based on the same inventive concept, this application also provides a power supply device for edge nodes to implement the power supply method for edge nodes described above. The solution provided by this device is similar to the solution described in the above method; therefore, the specific limitations in one or more embodiments of the power supply device for edge nodes provided below can be found in the limitations of the power supply method for edge nodes described above, and will not be repeated here.

[0166] In one embodiment, such as Figure 12 As shown, a power supply device for an edge node is provided, comprising: an acquisition module 10, a determination module 11, and a power supply module 12, wherein:

[0167] The acquisition module 10 is used to acquire the target distance value between the central controller and the target edge node; the target edge node is any edge node in the vehicle-mounted central centralized architecture.

[0168] The determination module 11 is used to determine the target output power of the central controller to the target edge node based on the target distance value, the power demand value of the target edge node, and the preset power attenuation coefficient.

[0169] The power supply module 12 is used to supply power to the target edge node according to the target output power.

[0170] In one embodiment, the determining module 11 includes: a first determining unit and a second determining unit, wherein:

[0171] The first determining unit is used to determine the attenuation power between the central controller and the target edge node based on the target distance value and the power attenuation coefficient.

[0172] The second determining unit is used to determine the target output power based on the attenuation power and the power demand value.

[0173] In one embodiment, the second determining unit is specifically used to reduce the initial output power by a first preset percentage when the signal strength is greater than a first strength threshold to obtain a target output power; and to increase the initial output power by a second preset percentage when the signal strength is less than a second strength threshold to obtain a target output power; wherein the first strength threshold is greater than the second strength threshold.

[0174] In one embodiment, the second determining unit is specifically used to increase the initial output power by a third preset ratio when the data transmission error rate is greater than the bit error rate threshold, so as to obtain the target output power.

[0175] In one embodiment, the acquisition module 10 includes: a sending unit, a receiving unit, a third determining unit, and a fourth determining unit, wherein:

[0176] The transmitting unit is used to send detection signals to the target edge node.

[0177] The receiving unit is used to receive feedback signals sent by the target edge node; the feedback signal is sent by the target edge node in response to the detection signal, and the feedback signal includes the received signal strength of the target edge node receiving the detection signal.

[0178] The third determining unit is used to determine the signal attenuation between the central controller and the target edge based on the transmitted signal strength and received signal strength of the detected signal.

[0179] The fourth determining unit is used to determine the target distance value between the central controller and the target edge based on the signal attenuation amount and the preset signal attenuation coefficient.

[0180] In one embodiment, the power supply device for the aforementioned edge node further includes: a receiving module and a power supply adjustment module, wherein:

[0181] The receiving module is used to receive the actual received power fed back by the target edge node.

[0182] The power supply module is adjusted to adjust the target output power based on the difference between the actual received power and the power demand, and to supply power to the target edge node based on the adjusted target output power.

[0183] In one embodiment, the power supply device for the aforementioned edge node further includes: a load condition acquisition module, a power range determination module, and a demand value acquisition module, wherein:

[0184] The load status acquisition module is used to acquire the load status of the target edge node.

[0185] The power range determination module is used to determine the power range that matches the load conditions of the target edge node.

[0186] The demand value acquisition module is used to determine the power demand value from the power range based on the real-time vehicle scenario.

[0187] Each module in the power supply device of the aforementioned edge nodes can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in hardware or independent of the processor in the central controller, or stored in software in the memory of the central controller, so that the processor can call and execute the operations corresponding to each module.

[0188] In one embodiment, a central controller is provided, which may be a central controller, and its internal structure diagram may be as follows: Figure 13 As shown, the central controller includes a processor, memory, input / output interfaces, a communication interface, a display unit, and input devices. The processor, memory, and input / output interfaces are connected via a system bus, and the communication interface, display unit, and input devices are also connected to the system bus via the input / output interfaces. The processor of the central controller provides computing and control capabilities. The memory of the central controller includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The input / output interfaces of the central controller are used for exchanging information between the processor and external devices. The communication interface of the central controller is used for wired or wireless communication with external terminals; wireless communication can be achieved through Wi-Fi, mobile cellular networks, Near Field Communication (NFC), or other technologies. When the computer program is executed by the processor, it implements a power supply method for edge nodes. The display unit of the central controller is used to form a visually visible image and can be a display screen, a projection device, or a virtual reality imaging device. The display screen can be an LCD screen or an e-ink screen. The input device of the central controller can be a touch layer covering the display screen, or buttons, trackballs, or touchpads set on the housing of the central controller, or external keyboards, touchpads, or mice, etc.

[0189] Those skilled in the art will understand that Figure 13 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the central controller to which the present application is applied. A specific central controller may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0190] In one embodiment, a central controller is provided, including a memory and a processor, the memory storing a computer program, the processor executing the computer program to perform the following steps:

[0191] Obtain the target distance value between the central controller and the target edge node; the target edge node is any edge node in the vehicle's central centralized architecture;

[0192] Based on the target distance value, the power demand value of the target edge node, and the preset power attenuation coefficient, the target output power of the central controller to the target edge node is determined;

[0193] Power is supplied to the target edge node according to the target output power.

[0194] In one embodiment, the processor, when executing a computer program, also performs the following steps:

[0195] Based on the target distance value and the power attenuation coefficient, determine the attenuation power between the central controller and the target edge node;

[0196] The target output power is determined based on the attenuation power and power demand value.

[0197] In one embodiment, the processor, when executing a computer program, also performs the following steps:

[0198] Determine the initial output power based on the attenuation power and power demand value;

[0199] Based on the working status data of the target edge node, the initial output power is adjusted to obtain the target output power; where the working status data includes signal strength and / or data transmission error rate.

[0200] In one embodiment, the processor, when executing a computer program, also performs the following steps:

[0201] When the signal strength is greater than the first strength threshold, the initial output power is reduced by a first preset ratio to obtain the target output power;

[0202] When the signal strength is less than the second strength threshold, the initial output power is increased by a second preset ratio to obtain the target output power;

[0203] The first intensity threshold is greater than the second intensity threshold.

[0204] In one embodiment, the processor, when executing a computer program, also performs the following steps:

[0205] When the data transmission error rate exceeds the error rate threshold, the initial output power is increased by a third preset ratio to obtain the target output power.

[0206] In one embodiment, the processor, when executing a computer program, also performs the following steps:

[0207] Send detection signals to the target edge nodes;

[0208] Receive feedback signals sent by the target edge node; the feedback signal is sent by the target edge node in response to the detection signal, and the feedback signal includes the received signal strength of the target edge node when it receives the detection signal;

[0209] Based on the transmitted and received signal strengths of the detected signal, the signal attenuation between the central controller and the target edge is determined;

[0210] The target distance between the central controller and the target edge is determined based on the signal attenuation and the preset signal attenuation coefficient.

[0211] In one embodiment, the processor, when executing a computer program, also performs the following steps:

[0212] Receive the actual received power fed back by the target edge node;

[0213] The target output power is adjusted based on the difference between the actual received power and the power demand, and power is supplied to the target edge node based on the adjusted target output power.

[0214] In one embodiment, the processor, when executing a computer program, also performs the following steps:

[0215] Obtain the load status of the target edge node;

[0216] Determine the power range that matches the load conditions of the target edge node;

[0217] Based on the real-time vehicle scenario, the power requirement value is determined from the power range.

[0218] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon, the computer program performing the following steps when executed by a processor:

[0219] Obtain the target distance value between the central controller and the target edge node; the target edge node is any edge node in the vehicle's central centralized architecture;

[0220] Based on the target distance value, the power demand value of the target edge node, and the preset power attenuation coefficient, the target output power of the central controller to the target edge node is determined;

[0221] Power is supplied to the target edge node according to the target output power.

[0222] In one embodiment, when the computer program is executed by a processor, it also performs the following steps:

[0223] Based on the target distance value and the power attenuation coefficient, determine the attenuation power between the central controller and the target edge node;

[0224] The target output power is determined based on the attenuation power and power demand value.

[0225] In one embodiment, when the computer program is executed by a processor, it also performs the following steps:

[0226] Determine the initial output power based on the attenuation power and power demand value;

[0227] Based on the working status data of the target edge node, the initial output power is adjusted to obtain the target output power; where the working status data includes signal strength and / or data transmission error rate.

[0228] In one embodiment, when the computer program is executed by a processor, it also performs the following steps:

[0229] When the signal strength is greater than the first strength threshold, the initial output power is reduced by a first preset ratio to obtain the target output power;

[0230] When the signal strength is less than the second strength threshold, the initial output power is increased by a second preset ratio to obtain the target output power;

[0231] The first intensity threshold is greater than the second intensity threshold.

[0232] In one embodiment, when the computer program is executed by a processor, it also performs the following steps:

[0233] When the data transmission error rate exceeds the error rate threshold, the initial output power is increased by a third preset ratio to obtain the target output power.

[0234] In one embodiment, when the computer program is executed by a processor, it also performs the following steps:

[0235] Send detection signals to the target edge nodes;

[0236] Receive feedback signals sent by the target edge node; the feedback signal is sent by the target edge node in response to the detection signal, and the feedback signal includes the received signal strength of the target edge node when it receives the detection signal;

[0237] Based on the transmitted and received signal strengths of the detected signal, the signal attenuation between the central controller and the target edge is determined;

[0238] The target distance between the central controller and the target edge is determined based on the signal attenuation and the preset signal attenuation coefficient.

[0239] In one embodiment, when the computer program is executed by a processor, it also performs the following steps:

[0240] Receive the actual received power fed back by the target edge node;

[0241] The target output power is adjusted based on the difference between the actual received power and the power demand, and power is supplied to the target edge node based on the adjusted target output power.

[0242] In one embodiment, when the computer program is executed by a processor, it also performs the following steps:

[0243] Obtain the load status of the target edge node;

[0244] Determine the power range that matches the load conditions of the target edge node;

[0245] Based on the real-time vehicle scenario, the power requirement value is determined from the power range.

[0246] In one embodiment, a computer program product is provided, including a computer program that, when executed by a processor, performs the following steps:

[0247] Obtain the target distance value between the central controller and the target edge node; the target edge node is any edge node in the vehicle's central centralized architecture;

[0248] Based on the target distance value, the power demand value of the target edge node, and the preset power attenuation coefficient, the target output power of the central controller to the target edge node is determined;

[0249] Power is supplied to the target edge node according to the target output power.

[0250] In one embodiment, when the computer program is executed by a processor, it also performs the following steps:

[0251] Based on the target distance value and the power attenuation coefficient, determine the attenuation power between the central controller and the target edge node;

[0252] The target output power is determined based on the attenuation power and power demand value.

[0253] In one embodiment, when the computer program is executed by a processor, it also performs the following steps:

[0254] Determine the initial output power based on the attenuation power and power demand value;

[0255] Based on the working status data of the target edge node, the initial output power is adjusted to obtain the target output power; where the working status data includes signal strength and / or data transmission error rate.

[0256] In one embodiment, when the computer program is executed by a processor, it also performs the following steps:

[0257] When the signal strength is greater than the first strength threshold, the initial output power is reduced by a first preset ratio to obtain the target output power;

[0258] When the signal strength is less than the second strength threshold, the initial output power is increased by a second preset ratio to obtain the target output power;

[0259] The first intensity threshold is greater than the second intensity threshold.

[0260] In one embodiment, when the computer program is executed by a processor, it also performs the following steps:

[0261] When the data transmission error rate exceeds the error rate threshold, the initial output power is increased by a third preset ratio to obtain the target output power.

[0262] In one embodiment, when the computer program is executed by a processor, it also performs the following steps:

[0263] Send detection signals to the target edge nodes;

[0264] Receive feedback signals sent by the target edge node; the feedback signal is sent by the target edge node in response to the detection signal, and the feedback signal includes the received signal strength of the target edge node when it receives the detection signal;

[0265] Based on the transmitted and received signal strengths of the detected signal, the signal attenuation between the central controller and the target edge is determined;

[0266] The target distance between the central controller and the target edge is determined based on the signal attenuation and the preset signal attenuation coefficient.

[0267] In one embodiment, when the computer program is executed by a processor, it also performs the following steps:

[0268] Receive the actual received power fed back by the target edge node;

[0269] The target output power is adjusted based on the difference between the actual received power and the power demand, and power is supplied to the target edge node based on the adjusted target output power.

[0270] In one embodiment, when the computer program is executed by a processor, it also performs the following steps:

[0271] Obtain the load status of the target edge node;

[0272] Determine the power range that matches the load conditions of the target edge node;

[0273] Based on the real-time vehicle scenario, the power requirement value is determined from the power range.

[0274] In one embodiment, a vehicle is provided, including a central controller and edge nodes as described in the above embodiments.

[0275] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile memory and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, artificial intelligence (AI) processors, etc., and are not limited to these.

[0276] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0277] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A power supply method for an edge node, characterized in that, The method is applied to an in-vehicle centralized architecture, which includes a central controller and multiple edge nodes. The method is executed by the central controller and includes: Obtain the target distance value between the central controller and the target edge node; the target edge node is any edge node in the vehicle-mounted central centralized architecture; Based on the target distance value, the power requirement value of the target edge node, and the preset power attenuation coefficient, the target output power of the central controller to the target edge node is determined; Power is supplied to the target edge node according to the target output power.

2. The method according to claim 1, characterized in that, The step of determining the target output power of the central controller to the target edge node based on the target distance value, the power demand value of the target edge node, and a preset power attenuation coefficient includes: Based on the target distance value and the power attenuation coefficient, the attenuation power between the central controller and the target edge node is determined; The target output power is determined based on the attenuation power and the power demand value.

3. The method according to claim 2, characterized in that, Determining the target output power based on the attenuation power and the power demand value includes: The initial output power is determined based on the attenuation power and the power demand value; The initial output power is adjusted based on the working status data of the target edge node to obtain the target output power; wherein the working status data includes signal strength and / or data transmission error rate.

4. The method according to claim 3, characterized in that, The operating status data includes signal strength; adjusting the initial output power based on the operating status data of the target edge node to obtain the target output power includes: When the signal strength is greater than a first strength threshold, the initial output power is reduced by a first preset percentage to obtain the target output power; When the signal strength is less than the second strength threshold, the initial output power is increased by a second preset ratio to obtain the target output power; Wherein, the first intensity threshold is greater than the second intensity threshold.

5. The method according to claim 3, characterized in that, The operating status data includes the data transmission error rate; adjusting the initial output power based on the operating status data of the target edge node to obtain the target output power includes: When the data transmission error rate is greater than the error rate threshold, the initial output power is increased by a third preset ratio to obtain the target output power.

6. The method according to claim 1, characterized in that, The step of obtaining the target distance value between the central controller and the target edge node includes: Send a detection signal to the target edge node; Receive a feedback signal sent by the target edge node; the feedback signal is sent by the target edge node in response to the detection signal, and the feedback signal includes the received signal strength of the target edge node when it receives the detection signal; Based on the transmitted signal strength and the received signal strength of the detected signal, the signal attenuation between the central controller and the target edge is determined; The target distance between the central controller and the target edge is determined based on the signal attenuation amount and the preset signal attenuation coefficient.

7. The method according to any one of claims 1-6, characterized in that, After supplying power to the target edge node according to the target output power, the method further includes: Receive the actual received power fed back by the target edge node; The target output power is adjusted based on the difference between the actual received power and the power demand value, and power is supplied to the target edge node based on the adjusted target output power.

8. The method according to any one of claims 1-6, characterized in that, The process of determining the power demand value includes: Obtain the load status of the target edge node; Determine the power range that matches the load conditions of the target edge node; The power requirement value is determined from the power range based on the real-time vehicle scenario.

9. A central controller comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the method according to any one of claims 1 to 8.

10. A vehicle, characterized in that, The vehicle includes an onboard central centralized architecture, which includes a central controller and edge nodes; The central controller performs the steps of the method according to any one of claims 1-8.

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