A low-voltage power supply management method and system for electric vehicles

Abstract

The present invention belongs to the technical field of low-voltage power supply management, and specifically relates to a low-voltage power supply management method and system for electric vehicles. The method comprises: step 1, a power supply control unit performs periodic self-wake-up to obtain battery status information; step 2, when the battery voltage is lower than a preset value, determining whether the battery discharge current is lower than a preset value, and if so, entering a low-battery alarm program; step 3, when the battery voltage is higher than or equal to a preset value, and when the battery voltage is lower than a preset value and the battery discharge current is higher than or equal to a preset value, determining the battery state of charge (SOC); if the battery state of charge (SOC) is also lower than the preset value, entering a low-battery alarm program; if the battery state of charge (SOC) is higher than or equal to the preset value, further determining a battery aging parameter (SOH); if the battery aging parameter (SOH) is also lower than the preset value, entering a low-battery alarm program. The present invention solves the hidden danger of power shortage during long-term parking.

Description

Technical Field

[0001] The present invention belongs to the technical field of low-voltage power supply management, and in particular relates to a low-voltage power supply management method and system for an electric vehicle. Background Art

[0002] With the development of intelligent battery sensors and power management technologies, more and more battery status management technologies are being implemented in vehicles. These include limiting the activation of power-consuming loads based on the battery status; providing reminders when power-consuming loads are not turned off; and notifying the user of the battery status through the onboard HMI system. Some electric vehicles charge at high voltage while the ACC / ON mode is engaged. These measures can provide early warning or slow the rate of battery depletion, improving the battery depletion problem to a certain extent, but they do not address the potential for battery depletion during long periods of parking.

[0003] The invention with publication number CN110803025A monitors the communication network of the electric vehicle during the sleep execution cycle through a low-voltage power management system and a monitoring device. When a message is transmitted on the communication network, a sleep instruction is sent to the device that sends the message to control the device that sends the message to enter sleep. When the device that sends the message cannot enter sleep, the smart fuse box of the electric vehicle is controlled to cut off the power supply to the device that sends the message, forcing the device to enter sleep, reducing low-voltage energy consumption in sleep mode, and avoiding low-voltage power supply failure. However, this invention only monitors periodically and forces sleep when it finds that the low-voltage power supply is not in sleep mode to prevent low-voltage power supply failure. It does not monitor or judge the status of the low-voltage power supply, nor does it interactively confirm with the drone. It is a self-execution of the power management system.

[0004] The invention with publication number CN113911053A determines the vehicle status through vehicle information, obtains the battery status, and then performs corresponding preset actions based on the battery status. This reduces the vehicle's power consumption while parked and balances the vehicle's power consumption while idling or driving, thereby extending the battery life, controlling parking power consumption, and adjusting the vehicle's power balance while driving to ensure driving safety. However, this invention determines the vehicle status through vehicle information, obtains the battery status, and performs preset actions to reduce power consumption during parking, thereby extending the battery life. This technology also does not monitor or determine the low-voltage power supply status, nor does it require interactive confirmation from the drone, and is self-executed by the power management system.

[0005] The present invention aims to provide a voltage system method based on the electric vehicle electrical architecture and the vehicle network vehicle system platform technology, which integrates battery status monitoring and early warning, human-computer remote interaction, and remote high-voltage electric active charging control method to ensure the reliability of the electric vehicle's low-voltage power supply system. Summary of the Invention

[0006] The present invention addresses the problem that most of the battery status management technologies implemented on vehicles in the existing technology are self-executed by the power management system, and do not monitor and judge the low-voltage power status, nor do they require interactive confirmation. The present invention aims to provide a voltage system method based on the electric vehicle electrical architecture and the vehicle network vehicle system platform technology, which integrates battery status monitoring and early warning, remote human-machine interaction, and remote high-voltage electric active charging control method to ensure the reliability of the low-voltage power system of the electric vehicle.

[0007] In order to achieve the above-mentioned purpose of the invention, a low-voltage power supply management method for an electric vehicle is provided as follows, which mainly includes the following steps:

[0008] Step 1: After the user locks the vehicle, the vehicle communication network remains active for a preset period of time, then controls the vehicle to enter a dormant state. The power control unit periodically wakes up and obtains battery status information through the battery smart sensor installed at the negative terminal of the battery. The status information includes battery voltage, battery discharge current, battery state of charge (SOC), and battery aging parameter (SOH).

[0009] Step 2: When the battery voltage is lower than a preset value, further determine whether the battery discharge current is lower than a preset value. If so, determine that the battery is in a low-battery risk state and enter a low-battery alarm program;

[0010] Step 3: When the battery voltage is higher than or equal to a preset value, and when the battery voltage is lower than a preset value and the battery discharge current is higher than or equal to a preset value, further determine the battery state of charge (SOC). If the battery state of charge (SOC) is also lower than the preset value, enter a low-battery alarm program. If the battery state of charge (SOC) is higher than or equal to the preset value, further determine a battery aging parameter (SOH). If the battery aging parameter (SOH) is also lower than the preset value, enter a low-battery alarm program. Otherwise, end the step.

[0011] As a preferred technical solution of the present invention, the following step 4 is further included after step 3:

[0012] Step 4: When the power control unit determines that the battery is at risk of low power, it sends a network wake-up request to the communication network main controller. After the vehicle communication network is awakened, the power control unit sends a low battery alarm signal and a high-voltage charging request signal to the body control unit, the electric control unit, and the remote communication module.

[0013] As a preferred technical solution of the present invention, the following step 5 is further included after step 4:

[0014] Step 5: After receiving the alarm signal, the body control unit checks whether the current vehicle safety status supports the high-voltage program, including the vehicle anti-theft status and the door lock open / close status. If all the vehicle safety status parameters meet the conditions, the body control unit sends a confirmation signal for supporting high-voltage charging; otherwise, a negative acknowledgement signal is sent. After receiving the low-battery alarm signal, the electric control unit immediately communicates with the high-voltage power battery management unit and the high-voltage DC / DC converter to check the safety status, charge status, and DCDC status of the high-voltage power battery. When all status parameters meet the preset conditions, the electric control unit sends a confirmation signal for supporting high-voltage charging; otherwise, a negative acknowledgement signal is sent.

[0015] As a preferred technical solution of the present invention, the following step 6 is further included after step 5:

[0016] Step 6. When any controller sends a signal that the vehicle status does not support the implementation of high-voltage power operation, the remote communication module sends an alarm message of "low battery power of the entire vehicle" to the background server, which is then pushed to the mobile terminal device by the background server to notify the owner. The power control unit ends the program of requesting high-voltage power, and then the communication network main controller controls the entire network to enter a dormant state.

[0017] As a preferred technical solution of the present invention, the following step 7 is further included after step 6:

[0018] Step 7. When the remote communication module receives the affirmative response signals from the body control unit and the electric control unit from the communication network, it sends a low-battery alarm message and a high-voltage request signal through the 4G / 5G network. These messages will be transmitted to the background server, and the background server pushes the information to the owner's mobile APP, requesting the owner whether to immediately perform the high-voltage operation. Since the high-voltage operation involves vehicle safety issues, the two-way communication between the vehicle and the owner is carried out after legal authentication by the background server. When the owner returns the confirmation information through the mobile APP, the remote communication module sends a high-voltage permission signal through the communication network. After receiving the signal, the electric control unit immediately controls the high-voltage DC / DC converter to charge the battery.

[0019] As a preferred technical solution of the present invention, the following step 8 is further included after step 7:

[0020] Step 8: Limit the voltage and current during the charging process. The method for judging whether to stop charging includes stopping charging when a preset time is reached, and monitoring the battery state of charge in real time by the power control unit during the charging process. When the battery state of charge (SOC) reaches a preset threshold, that is, the stop condition is met, charging is requested to be stopped, and the electric control unit performs a high-voltage power-off operation for the entire vehicle and sends a signal to the communication network. After charging is completed, a message is sent through the mobile APP to notify the owner that the battery has been charged, and the current vehicle and high and low voltage system status information is displayed. After all operations are completed, the vehicle communication network returns to sleep mode, and the power control unit enters the periodic monitoring mode again.

[0021] The present invention also provides a low-voltage power management system for electric vehicles, which mainly includes the following systems:

[0022] The vehicle's internal system consists of a low-voltage power management subsystem, a high-voltage control subsystem, and a body control and communication subsystem. The low-voltage power management subsystem is responsible for monitoring the low-voltage battery status and monitoring and issuing alarms for the vehicle's static power consumption. The high-voltage control subsystem is responsible for charging the battery. The body control and communication subsystem is responsible for monitoring the vehicle status and communicating with external facilities.

[0023] The external terminal system, consisting of a background server, mobile terminal devices, and Internet PC terminals, is used to realize vehicle wireless communication functions and human-computer interaction functions.

[0024] Among them, the low-voltage power management subsystem is composed of a battery, a power control unit, and a battery intelligent sensor; the high-voltage control subsystem is composed of an electric control unit, a high-voltage power battery management unit, a high-voltage power battery, and a high-voltage DC / DC converter; the body control and communication subsystem is composed of a body control unit and a remote communication module.

[0025] Compared with the prior art, the beneficial effects of the present invention are at least as follows:

[0026] The present invention provides a voltage system method based on the electric vehicle electrical architecture and the vehicle network vehicle system platform technology, which integrates battery status monitoring and early warning, human-computer remote interaction, and remote high-voltage electric active charging control method, thereby ensuring the reliability of the electric vehicle's low-voltage power supply system and effectively solving the problem of the electric vehicle being unable to start due to battery depletion. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A flowchart of a method for managing low-voltage power supply for an electric vehicle according to the present invention;

[0028] Figure 2This is an overall architecture diagram of a low-voltage power management system for electric vehicles according to the present invention;

[0029] Figure 3 This is a detailed architecture diagram of a low-voltage power management system for electric vehicles according to the present invention. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0031] It is understood that the terms "first," "second," etc., used herein may be used to describe various elements, but unless otherwise specified, these elements are not limited by these terms. These terms are only used to distinguish a first element from another element. For example, a first xx script may be referred to as a second xx script, and similarly, a second xx script may be referred to as a first xx script without departing from the scope of this application.

[0032] The present invention provides Figure 1 The low-voltage power management method for an electric vehicle is mainly implemented by executing the following steps:

[0033] Step 1: After the user locks the vehicle, the vehicle communication network remains active for a preset period of time, then controls the vehicle to enter a dormant state. The power control unit periodically wakes up and obtains battery status information through the battery smart sensor installed at the negative terminal of the battery. The status information includes battery voltage, battery discharge current, battery state of charge (SOC), and battery aging parameter (SOH).

[0034] Step 2: When the battery voltage is lower than a preset value, further determine whether the battery discharge current is lower than a preset value. If so, determine that the battery is in a low-battery risk state and enter a low-battery alarm program;

[0035] Step 3: When the battery voltage is higher than or equal to a preset value, and when the battery voltage is lower than a preset value and the battery discharge current is higher than or equal to a preset value, further determine the battery state of charge (SOC). If the battery state of charge (SOC) is also lower than the preset value, enter a low-battery alarm program. If the battery state of charge (SOC) is higher than or equal to the preset value, further determine the battery aging parameter (SOH). If the battery aging parameter (SOH) is also lower than the preset value, enter a low-battery alarm program. Otherwise, end the step.

[0036] Furthermore, after the above step 3, the following step 4 is also included:

[0037] Step 4: When the power control unit determines that the battery is at risk of low power, it sends a network wake-up request to the communication network main controller. After the vehicle communication network is awakened, the power control unit sends a low battery alarm signal and a high-voltage charging request signal to the body control unit, the electric control unit, and the remote communication module.

[0038] Furthermore, after the above step 4, the following step 5 is also included:

[0039] Step 5: After receiving the alarm signal, the body control unit checks whether the current vehicle safety status supports the high-voltage program, including the vehicle anti-theft status and the door lock open / close status. If all the vehicle safety status parameters meet the conditions, the body control unit sends a confirmation signal for supporting high-voltage charging; otherwise, a negative acknowledgement signal is sent. After receiving the low-battery alarm signal, the electric control unit immediately communicates with the high-voltage power battery management unit and the high-voltage DC / DC converter to check the safety status, charge status, and DCDC status of the high-voltage power battery. When all status parameters meet the preset conditions, the electric control unit sends a confirmation signal for supporting high-voltage charging; otherwise, a negative acknowledgement signal is sent.

[0040] Furthermore, after the above step 5, the following step 6 is also included:

[0041] Step 6. When any controller sends a signal that the vehicle status does not support the implementation of high-voltage power operation, the above-mentioned remote communication module sends an alarm message of "low battery power of the entire vehicle" to the background server, and then the background server pushes it to the mobile terminal device to notify the owner. The above-mentioned power control unit ends the program of requesting high-voltage power, and then the above-mentioned communication network main controller controls the entire network to enter a dormant state.

[0042] Furthermore, after the above step 6, the following step 7 is also included:

[0043] Step 7. When the remote communication module receives the affirmative response signals from the vehicle body control unit and the electric control unit from the communication network, it sends a low-battery alarm message and a high-voltage request signal through the 4G / 5G network. These messages will be transmitted to the background server, which pushes the information to the owner's mobile APP, requesting the owner to immediately perform the high-voltage operation. Since the high-voltage operation involves vehicle safety issues, the two-way communication between the vehicle and the owner is carried out after legal authentication by the background server. When the owner returns the confirmation information through the mobile APP, the remote communication module sends a high-voltage permission signal through the communication network. After receiving the signal, the electric control unit immediately controls the high-voltage DC / DC converter to charge the battery.

[0044] Furthermore, after the above step 7, the following step 8 is also included:

[0045] Step 8: Limit the voltage and current during the charging process. The method for judging whether to stop charging includes stopping charging when a preset time is reached, and monitoring the battery state of charge in real time by the power control unit during the charging process. When the battery state of charge (SOC) reaches a preset threshold, that is, the stop condition is met, charging is requested to be stopped, and the electric control unit executes the high-voltage power-off operation of the entire vehicle and sends a signal to the communication network. After charging is completed, a message is sent through the mobile APP to notify the owner that the battery has been charged, and the current vehicle and high and low voltage system status information is displayed. After all operations are completed, the vehicle communication network returns to sleep mode, and the power control unit enters the periodic monitoring mode again.

[0046] Specifically, according to market failure statistics, a high percentage of roadside assistance requests are due to battery depletion, preventing the vehicle from starting. Battery depletion can occur for a variety of reasons, including battery quality issues, customers forgetting to turn off electrical appliances, and some vehicle systems designed with excessive static power consumption, resulting in battery depletion and inability to start after prolonged parking. In recent years, with the increasing functionality of automotive electronics, some modules continue to operate for a period of time after the vehicle is turned off. Even after the vehicle is dormant, some modules may activate themselves or the entire vehicle bus system to perform certain functions, leading to increased battery drain. This is particularly true for connected electric vehicles, as they require periodic monitoring, storage, and reporting of vehicle safety and power battery status data, as well as lithium battery balancing strategies for specific conditions, even when the vehicle is dormant. These functions increase battery power consumption during parking, significantly shortening the vehicle's sustainable parking time. Many customers have complained that low-voltage battery depletion prevents high-voltage power from being connected, rendering the vehicle inoperable. Therefore, design optimization of power management strategies is necessary.

[0047] The above steps 1 to 8 proposed in the present invention are a voltage system management method based on the mainstream electric vehicle electrical architecture and Internet car technology. The method integrates battery status monitoring and early warning, human-computer remote interaction, vehicle remote start and other functions, which can reduce the problem of electric vehicles being unable to start due to battery depletion.

[0048] References Figure 2 and 3 As shown, the present invention also provides an electric vehicle low-voltage power supply management system, which is used to implement an electric vehicle low-voltage power supply management method as described above. Specifically, it includes the following system components:

[0049] The vehicle's internal system consists of a low-voltage power management subsystem, a high-voltage control subsystem, and a body control and communication subsystem. The low-voltage power management subsystem is responsible for monitoring the low-voltage battery status and monitoring and issuing alarms for the vehicle's static power consumption. The high-voltage control subsystem is responsible for charging the battery. The body control and communication subsystem is responsible for monitoring the vehicle status and communicating with external facilities.

[0050] The external terminal system, consisting of a background server, mobile terminal devices, and Internet PC terminals, is used to realize vehicle wireless communication functions and human-computer interaction functions.

[0051] Among them, the above-mentioned low-voltage power management subsystem is composed of a battery, a power control unit, and a battery intelligent sensor; the above-mentioned high-voltage control subsystem is composed of an electric control unit, a high-voltage power battery management unit, a high-voltage power battery, and a high-voltage DC / DC converter; the body control and communication subsystem is composed of a body control unit and a remote communication module.

[0052] It should be understood that, although the various steps in the flow chart of each embodiment of the present invention are shown in sequence according to the indication of the arrows, these steps are not necessarily performed in sequence according to the order indicated by the arrows. Unless otherwise specified herein, the execution of these steps is not strictly limited in order, and these steps can be performed in other orders. Moreover, at least a portion of the steps in each embodiment may include a plurality of sub-steps or a plurality of stages, and these sub-steps or stages are not necessarily performed at the same time, but can be performed at different times, and the execution order of these sub-steps or stages is not necessarily performed in sequence, but can be performed in turn or alternately with at least a portion of other steps or sub-steps or stages of other steps.

[0053] Those skilled in the art will appreciate that all or part of the processes in the above-mentioned embodiment methods can be implemented by instructing the relevant hardware through a computer program. The above-mentioned program can be stored in a non-volatile computer-readable storage medium. When the program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

[0054] The technical features of the above embodiments can be combined arbitrarily. In order to make the description concise, 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 specification.

[0055] The above embodiments merely represent several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the scope of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be based on the appended claims.

[0056] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A low-voltage power supply management method for electric vehicles, characterized in that: The steps include: Step 1: After the user locks the vehicle, the vehicle communication network remains active for a preset period of time, then controls the vehicle to enter a dormant state. The power control unit periodically wakes up and obtains battery status information through the battery smart sensor installed at the negative terminal of the battery. The status information includes battery voltage, battery discharge current, battery state of charge (SOC), and battery aging parameter (SOH). Step 2: When the battery voltage is lower than a preset value, further determine whether the battery discharge current is lower than a preset value. If so, determine that the battery is in a low-power risk state and enter the low-power alarm program; Step 3: When the battery voltage is higher than or equal to a preset value, or when the battery voltage is lower than a preset value and the battery discharge current is higher than or equal to a preset value, further determine the battery state of charge (SOC). If the battery state of charge (SOC) is also lower than the preset value, enter a low-battery alarm program. If the battery state of charge (SOC) is higher than or equal to the preset value, further determine the battery aging parameter (SOH). If the battery aging parameter (SOH) is also lower than the preset value, enter a low-battery alarm program. Otherwise, end the step. The low-battery alarm program includes alerting the driver through the vehicle's sound and light alarm system or sending an alarm message to the owner's mobile terminal through a remote communication module to ensure that the owner can take timely measures. After step 3, the following step 4 is also included: Step 4: When the power control unit determines that the battery is at risk of low power, it sends a network wake-up request to the communication network main controller. After the vehicle communication network is awakened, the power control unit sends a low battery warning signal and a high-voltage charging request signal to the body control unit, electric control unit, and remote communication module. After step 4, the following step 5 is also included: Step 5. After receiving the alarm signal, the body control unit checks whether the current vehicle safety status supports the high-voltage program, including the vehicle anti-theft status and the door lock open / close status. If all the vehicle safety status parameters meet the conditions, the body control unit sends a confirmation signal for supporting high-voltage charging; otherwise, it sends a negative acknowledgment signal. After receiving the low-battery alarm signal, the electric control unit immediately communicates with the high-voltage power battery management unit and the high-voltage DC / DC converter to check the safety status, charge status, and DCDC status of the high-voltage power battery. When all status parameters meet the preset conditions, the electric control unit sends a confirmation signal for supporting high-voltage charging; otherwise, it sends a negative acknowledgment signal.

2. The electric vehicle low-voltage power supply management method according to claim 1, characterized in that: After step 5, the following step 6 is also included: Step 6. When any controller sends a signal that the vehicle status does not support the implementation of the high-voltage power operation, the remote communication module sends an alarm message of "low battery power of the entire vehicle" to the background server, which is then pushed to the mobile terminal device by the background server to notify the owner. The power control unit ends the program of requesting high-voltage power, and then the communication network main controller controls the entire network to enter the sleep state.

3. The electric vehicle low-voltage power supply management method according to claim 2, characterized in that: After step 6, the following step 7 is also included: Step 7. When the remote communication module receives the affirmative response signals from the body control unit and the electric control unit from the communication network, it sends a low-battery alarm message and a high-voltage request signal through the 4G / 5G network. These messages will be transmitted to the background server, and the background server will push the information to the owner's mobile APP, requesting the owner whether to immediately perform the high-voltage operation. Since the high-voltage operation involves vehicle safety issues, the two-way communication between the vehicle and the owner is carried out after legal authentication by the background server. When the owner returns the confirmation information through the mobile APP, the remote communication module sends a high-voltage permission signal through the communication network. After receiving the signal, the electric control unit immediately controls the high-voltage DC / DC converter to charge the battery.

4. The electric vehicle low-voltage power supply management method according to claim 3, characterized in that: After step 7, the following step 8 is also included: Step 8: Limit the voltage and current during the charging process. The method for judging whether to stop charging includes stopping charging when a preset time is reached, and having the power control unit monitor the battery's state of charge in real time during the charging process. When the battery's state of charge (SOC) reaches a preset threshold, that is, the stop condition is met, a request is made to stop charging, and the electric control unit performs a high-voltage power-off operation for the entire vehicle and sends a signal to the communication network. After charging is completed, a message is sent through the mobile APP to notify the owner that the battery has been charged, and the current vehicle and high and low voltage system status information is displayed. After all operations are completed, the vehicle's communication network returns to sleep mode, and the power control unit enters the periodic monitoring mode again.

5. A low-voltage power management system for electric vehicles, used to implement the method according to any one of claims 1 to 4, characterized in that: The following systems are included: The vehicle's internal system consists of a low-voltage power management subsystem, a high-voltage control subsystem, and a body control and communication subsystem. The low-voltage power management subsystem is responsible for monitoring the low-voltage battery status and monitoring and issuing alarms for the vehicle's static power consumption. The high-voltage control subsystem is responsible for charging the battery. The body control and communication subsystem is responsible for monitoring the vehicle status and communicating with external facilities. The external terminal system, consisting of a background server, mobile terminal devices, and Internet PC terminals, is used to realize vehicle wireless communication functions and human-computer interaction functions.

6. The low-voltage power management system for electric vehicles according to claim 5, characterized in that: The low-voltage power management subsystem is composed of a battery, a power control unit, and a battery intelligent sensor. The high-voltage control subsystem is composed of an electric control unit, a high-voltage power battery management unit, a high-voltage power battery, and a high-voltage DC / DC converter. The body control and communication subsystem is composed of a body control unit and a remote communication module.

7. A computer storage medium, characterized in that The computer storage medium stores program instructions, wherein when the program instructions are executed, the device where the computer storage medium is located is controlled to execute any one of the methods in claims 1 to 4.

8. A processor, characterized in that: The processor is configured to run a program, wherein the program executes the method according to any one of claims 1 to 4 when the program is run.

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