Battery management device and data interaction method

Abstract

The present invention proposes a battery management device and a data interaction method, the method comprising: acquiring target data; broadcasting data through the series bus and / or the parallel bus according to the target data, and sending the target data to each battery management system, so that the target battery management system performs corresponding processing according to the target data, and the address of the target battery management system is the same as the address carried in the target data. The battery management device and data interaction method proposed in the embodiment of the present invention perform data interaction through a bus connection, and each battery management system can communicate directly with the lower-level equipment, with high communication efficiency and simple operation. With the increase of offline equipment, new wiring difficulty will not be increased, which is conducive to installation and wiring.

Description

Technical Field

[0001] The present invention relates to the field of electronic technology, and in particular to a battery management device and a data interaction method. Background Art

[0002] With the widespread application of renewable energy such as photovoltaics, and the demand for higher power supply reliability in industry and commerce, microgrid technology has developed rapidly. However, renewable energy is greatly affected by the meteorological environment and has the disadvantage of intermittent operation. As an energy storage system, energy storage system overcomes the temporal or local differences between energy supply and demand in renewable energy power generation, and is an important part of microgrid.

[0003] The energy storage system is mainly composed of multiple unit systems such as battery system (BS), power conversion system, battery management system (BMS), etc. Among them, the battery management system is mainly a system for real-time monitoring of the battery system. It can effectively monitor the voltage, current, temperature, charge state and health state of the battery system. According to the monitoring data, the battery system is safely charged or discharged to ensure the safe, reliable and stable operation of the energy storage system. The battery system is the part of the energy storage system that stores and releases electric energy. Its capacity and operating status are directly related to the safety and reliability of the energy storage system.

[0004] A large-capacity battery system is composed of hundreds or thousands of battery cells connected in series and parallel, and requires multiple battery management systems to manage it. The battery management system currently mainly uses parallel or series bus communication to exchange data. For data interaction, chip selection or daisy chain methods are generally used. There are many signals that need to be configured in the battery management system, and the communication rate is slow.

[0005] Figure 1 FIG. 1 is a schematic diagram of the connection structure of a battery management system in a chip selection mode in the prior art. Figure 1 As shown, the data interaction mode of chip selection is: BMS_1 first sets the CS1 or CS2 signal line to a high level, and then sends data to the bus. BMS_2 and BMS_3 detect whether the CS signal line is set to a high level. If it is a high level, the data is processed, otherwise it is not processed.

[0006] The data interaction of the chip selection method can only be carried out between BMS_1 and the lower-level equipment, while data interaction cannot be carried out between BMS_2 and BMS_3. The communication efficiency is low. In the entire communication system, BMS_1 needs to lead out multiple signal lines, and the length of the signal line will vary with the distance of the equipment. As the number of devices increases, the cost increases and the wiring difficulty increases, which is not conducive to installation and wiring. Summary of the invention

[0007] The present invention provides a battery management device and a data interaction method, the main purpose of which is to simplify the difficulty of equipment wiring and improve communication efficiency.

[0008] In a first aspect, an embodiment of the present invention provides a battery management device, including: M×N battery management systems, M>1, N>1, M and N are both positive integers, M represents the number of rows, and N represents the number of columns;

[0009] The battery management system comprises a series input signal pin, a parallel input signal pin, a first series communication pin, a second series communication pin, a series output signal pin, a parallel output signal pin, a first parallel communication pin and a second parallel communication pin;

[0010] For the battery management system in the i-th row, 0<i≤M, i is a positive integer, if the battery management system in the i-th row is connected to the parallel bus, then for any two adjacent battery management systems, the first parallel communication pins of the previous battery management system and the next battery management system are both connected to one end of the parallel bus, the second parallel communication pins of the previous battery management system and the next battery management system are both connected to the other end of the parallel bus, and the parallel output signal pin of the previous battery management system is connected to the parallel input signal pin of the next battery management system;

[0011] For the battery management system in the jth column, 0<j≤N, j is a positive integer, for any two adjacent battery management systems, the first series communication pins of the previous battery management system and the next battery management system are connected to one end of the series bus corresponding to each column, the second series communication pins of the previous battery management system and the next battery management system are connected to the other end of the series bus, and the series output signal pin of the previous battery management system is connected to the series input signal pin of the next battery management system.

[0012] Preferably, the method further comprises: if the battery management systems in the i-th row are not connected to the parallel bus, each battery management system in the i-th row is independent of each other.

[0013] Preferably, the parallel bus is an RS485 bus.

[0014] Preferably, the serial bus is a CAN bus.

[0015] In a second aspect, an embodiment of the present invention provides a data interaction method, including:

[0016] Get target data;

[0017] According to the target data, data broadcast is performed through the series bus and / or the parallel bus to send the target data to each battery management system so that the target battery management system performs corresponding processing according to the target data, and the address of the target battery management system is the same as the address carried in the target data.

[0018] Preferably, the method of broadcasting data according to the target data through the series bus and / or the parallel bus to send the target data to each battery management system further includes:

[0019] Broadcasting the target data to each battery management system connected to the parallel bus according to the address in the target data;

[0020] Based on each battery management system connected to the parallel bus, the target data is broadcasted through the series bus to send the target data to each column of battery management systems.

[0021] Preferably, the step of acquiring the target data further includes:

[0022] For a current battery management system in any column of battery management systems, setting the serial output signal pin of the current battery management system high, and making the current battery management system broadcast and send current address configuration data through the serial bus;

[0023] Obtain a reference battery management system whose series input signal pin is at a high level, use the current address configuration data as the address of the reference battery management system, and update the current address configuration data, use the updated current address configuration data again as the current address configuration data, use the reference battery management system as the current battery management system, and repeat this step until addresses are allocated to each battery management system.

[0024] Preferably, it also includes:

[0025] If any battery management system in any column fails, the fault data is reported through the series bus, so that other battery management systems can make corresponding responses after receiving the fault data.

[0026] In a third aspect, an embodiment of the present invention provides a computer device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the above-mentioned data interaction method when executing the computer program.

[0027] In a fourth aspect, an embodiment of the present invention provides a computer storage medium, wherein the computer storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the above-mentioned data interaction method are implemented.

[0028] The battery management device and data interaction method proposed in the embodiments of the present invention are such that each battery management system is connected to a bus and data interaction is performed through a bus connection. Each battery management system can directly communicate with lower-level devices, with high communication efficiency and simple operation. Moreover, as offline devices increase, new wiring difficulty will not be increased, which is conducive to installation and wiring. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of the connection structure of a battery management system using a chip selection method in the prior art;

[0030] Figure 2 A schematic diagram of the connection structure of a daisy chain battery management system in the prior art;

[0031] Figure 3 A schematic diagram of the structure of a battery management device provided by an embodiment of the present invention;

[0032] Figure 4 Schematic diagram of pins of a battery management system according to an embodiment of the present invention;

[0033] Figure 5 A flowchart of a data interaction method is provided for an embodiment of the present invention;

[0034] Figure 6 A schematic diagram of the structure of a computer device provided in an embodiment of the present invention.

[0035] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0036] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0037] Figure 2 FIG. 1 is a schematic diagram of a connection structure of a daisy chain battery management system in the prior art. Figure 2 As shown in the figure, the data interaction mode of the daisy chain is: BMS_1 sets the OUT signal line to a high level and sends data. After receiving the data, BMS_2 determines whether the IN signal line is a high level, processes the data and sends it to the next device BMS_3, which is then sent back to BMS_1 by BMS_3 to form a link.

[0038] In the daisy chain mode, BMS_1 sends data, BMS_2 receives the data, determines whether the data is processed, and then sends it to BMS_3. The communication rate of the whole process is slow and cumbersome.

[0039] Figure 3Schematic diagram of a battery management device provided in an embodiment of the present invention. The present invention provides a battery management device, such as Figure 3 As shown, the battery management device includes: M×N battery management systems, M>1, N>1, M and N are both positive integers, M represents the number of rows, and N represents the number of columns;

[0040] The battery management system comprises a series input signal pin, a parallel input signal pin, a first series communication pin, a second series communication pin, a series output signal pin, a parallel output signal pin, a first parallel communication pin and a second parallel communication pin;

[0041] For the battery management system in the i-th row, 0<i≤M, i is a positive integer, if the battery management system in the i-th row is connected to the parallel bus, then for any two adjacent battery management systems, the first parallel communication pins of the previous battery management system and the next battery management system are both connected to one end of the parallel bus, the second parallel communication pins of the previous battery management system and the next battery management system are both connected to the other end of the parallel bus, and the parallel output signal pin of the previous battery management system is connected to the parallel input signal pin of the next battery management system;

[0042] For the battery management system in the jth column, 0<j≤N, j is a positive integer, for any two adjacent battery management systems, the first series communication pins of the previous battery management system and the next battery management system are both connected to one end of the series bus, the second series communication pins of the previous battery management system and the next battery management system are both connected to the other end of the series bus, and the series output signal pin of the previous battery management system is connected to the series input signal pin of the next battery management system.

[0043] Specifically, the battery management device includes M×N battery management systems, which are arranged in the form of a matrix, where M represents the number of rows, N represents the number of columns, M and N are both positive integers greater than 1, and M and N may be equal or unequal, which may be determined according to actual conditions. In the embodiment of the present invention, the case of M=3 and N=3 is used for illustration, and the 9 battery management systems in the figure are represented by BMS_1, BMS_2, BMS_3, BMS_4, BMS_5, BMS_6, BMS_7, BMS_8 and BMS_9 respectively.

[0044] Figure 4 FIG. 1 is a pin diagram of a battery management system according to an embodiment of the present invention. Figure 4 As shown, the battery management system includes 8 pins, and the meaning of each pin is as follows:

[0045] INPUT_1 represents the parallel input signal pin, which is a parallel input detection signal used to detect high and low level signals.

[0046] INPUT_2 represents the serial input signal pin, which is the serial input detection signal and is used to detect high and low level signals.

[0047] OUTPUT_1 represents the parallel output signal pin, which is a parallel output enable signal used to output high and low level signals.

[0048] OUTPUT_2 represents a serial output signal pin, which is a serial output enable signal pin and is used to output high and low level signals.

[0049] CAN_H represents the first serial communication pin, which is connected to the serial bus and is used for communication between devices.

[0050] CAN_L represents the second serial communication pin, which is connected to the serial bus and is used for communication between devices.

[0051] RS485_A represents the first parallel communication pin, which is connected to the parallel bus and is used for communication between devices.

[0052] RS485_B represents the second parallel communication pin, connected to the parallel bus, used for communication between devices

[0053] like Figure 3 As shown, the battery management device is composed of 3 rows and 3 columns of battery management systems. For each row of battery management systems, the connection method of the row of battery management systems connected to the parallel bus is as follows:

[0054] For all the battery management systems in this row, the first parallel communication pins of all the battery management systems are connected to one end of the parallel bus, and the second parallel communication pins of all the battery management systems are connected to the other end of the parallel bus. For any two adjacent battery management systems, the parallel output signal pin of the previous battery management system is connected to the parallel input signal pin of the next battery management system.

[0055] That is: the RS485_A pins of BMS_1, BMS_2 and BMS_3 are all connected to one end of the parallel bus, the RS485_B pins of BMS_1, BMS_2 and BMS_3 are all connected to the other end of the parallel bus, the OUTPUT_1 pin of BMS_1 is connected to the INPUT_1 pin of BMS_2, and the OUTPUT_1 pin of BMS_2 is connected to the INPUT_1 pin of BMS_3.

[0056] It should also be noted that the battery management systems that are not connected to the parallel bus are independent of each other.

[0057] For the battery management systems located in each column, the connection method of each column is the same. Taking the battery management system in the first column as an example, the first series communication pin of each battery management system is connected to one end of the series bus, and the second series communication pin of each battery management system is connected to the other end of the series bus. For any two adjacent battery management systems, the series output signal pin of the previous battery management system is connected to the series input signal pin of the next battery management system.

[0058] That is: the CAN_H pins of BMS_1, BMS_4 and BMS_7 are all connected to one end of the parallel bus, the CAN_L pins of BMS_1, BMS_4 and BMS_7 are all connected to the other end of the parallel bus, the OUTPUT_2 of BMS_1 is connected to the INPUT_2 of BMS_4, and the OUTPUT_2 of BMS_4 is connected to the INPUT_2 of BMS_7.

[0059] It should be noted that the parallel bus is the channel for transmitting data between the parallel interface and the device. The interface that uses parallel transmission to transmit data between the parallel interface and the device is called a parallel interface. It has two main characteristics: one is that the binary number transmitted in parallel at the same time is the data width; the other is that the parallel interface and the device use a response-type communication signal to coordinate the data transmission operation of both parties. This communication signal is also called a handshake signal.

[0060] In the embodiment of the present invention, the parallel bus is specifically an RS485 bus, and RS485 supports half-duplex or full-duplex mode. The bus type structure that generally adopts terminal matching in the network topology does not support annular or star networks, and preferably adopts a bus to connect each node in series. The lead-out length from the bus to each node should be as short as possible so that the reflected signal in the lead-out line has the lowest impact on the bus signal. When using the RS485 interface, for a specific transmission line warp, the maximum cable length allowed by the data signal transmission from the generator to the load is a function of the data signal rate, and this length data is mainly limited by the influence of signal distortion and noise.

[0061] In the embodiment of the present invention, the serial bus is a CAN bus, which belongs to the category of field bus and is a serial communication network that effectively supports distributed control or real-time control. Compared with many RS485 distributed control systems built based on R lines, the distributed control system based on the CAN bus has obvious advantages in the following aspects: the data communication between each node of the network is highly real-time and the development cycle is short.

[0062] A battery management device is proposed in an embodiment of the present invention, in which each battery management system is connected to a bus, and data is exchanged through a bus connection. Each battery management system can directly communicate with a lower-level device, with high communication efficiency and simple operation. Moreover, as offline devices increase, new wiring difficulty will not be increased, which is conducive to installation and wiring.

[0063] Figure 5 A flowchart of a data interaction method is provided for an embodiment of the present invention. The data interaction method relies on the battery management device provided in the above embodiment, such as Figure 5 As shown, the method includes:

[0064] S510, acquiring target data;

[0065] First, the target data sent by the lower-level device is obtained. The target data contains the address of the target battery management system, and the target battery management system is the destination for sending the target data.

[0066] S520, according to the target data, broadcast data through the series bus and / or the parallel bus, and send the target data to each battery management system so that the target battery management system performs corresponding processing according to the target data, and the address of the target battery management system is the same as the address carried in the target data.

[0067] After obtaining the target data, since each battery management system is connected through a series bus or a parallel bus, the target data is broadcast through the series bus or the parallel bus to each battery management system. After the battery management system receives the target data, the address contained in the target data is compared with the address of the battery management system. If they are the same, the target data is parsed. If they are different, they are not processed.

[0068] It should be noted that the address in the target data may be one or more. When the address in the target data is more than one, one-to-many communication is performed.

[0069] The embodiment of the present invention provides a data interaction method, and devices on the bus can perform data interaction in a one-to-one or one-to-many manner, with fast response and no need to control other signal lines.

[0070] Based on the above embodiment, preferably, the method of broadcasting data through the series bus and / or the parallel bus according to the target data to send the target data to each battery management system further includes:

[0071] Broadcasting the target data to each battery management system connected to the parallel bus according to the address in the target data;

[0072] Based on each battery management system connected to the parallel bus, the target data is broadcasted through the series bus to send the target data to each column of battery management systems.

[0073] Specifically, the target data is first broadcast through the parallel bus, so that BMS_1, BMS_2 and BMS_3 receive the target data, and BMS_1, BMS_2 and BMS_3 broadcast the target data to the battery management system of each column through the series bus.

[0074] Based on the above embodiment, preferably, the acquiring target data further includes:

[0075] For a current battery management system in any column of battery management systems, setting the serial output signal pin of the current battery management system high, and making the current battery management system broadcast and send current address configuration data through the serial bus;

[0076] Obtain a reference battery management system whose series input signal pin is at a high level, use the current address configuration data as the address of the reference battery management system, and update the current address configuration data, use the updated current address configuration data again as the current address configuration data, use the reference battery management system as the current battery management system, and repeat this step until addresses are allocated to each battery management system.

[0077] Specifically, before data interaction, each battery management system needs to be addressed. The reason for the address configuration is that the initial address of each battery management system is unknown, or the address of the battery management system is modified in some places without making corresponding records, making it impossible for subsequent personnel to know the initial address of the battery management system when they continue to use it. Therefore, before use, each battery management system needs to be addressed, that is, the address of the battery management system needs to be initialized.

[0078] The specific method is as follows:

[0079] 1. According to the total positive bus of the battery management device, the operator needs to find the location of BMS_1, then press and hold the button switch of the BMS_1 battery management system for 2S, wait for the corresponding indicator light to light up and then release it, so as to send the address allocation start signal to the corresponding software.

[0080] 2. BMS_1 enters address configuration mode after detecting the key signal.

[0081] ① Set OUTPUT_2 high, BMS_1 broadcasts address configuration data through the CAN bus. The address configuration data carries the address of the next battery management system. In the embodiment of the present invention, the next battery management system is BMS_4. The address of the next battery management system is obtained by adding a preset number to the address of BMS_1. The preset number can be determined according to actual conditions. In the embodiment of the present invention, the value of the preset number is 1. Therefore, the address of the next battery management system is the address of BMS_1 plus 1.

[0082] ②Other battery management systems enter the configuration mode after receiving the address configuration data on the CAN bus and detect the INPUT_2 pin level.

[0083] ③ Since the OUTPUT_2 pin of BMS_1 is set high, and the INPUT_2 of BMS_4 is connected to the OUTPUT_2 pin, BMS_4 detects that INPUT_2 is high, then parses the data and sets the address in the address configuration data to the address of BMS_4. BMS_7 does not detect that INPUT_2 is high, so it does not process the data.

[0084] ④After BMS_4 is configured, it repeats the steps of BMS_1, pulls up OUTPUT_2 and sends data. BMS_7 repeats the steps of BMS_4, receives data and detects whether the INPUT_2 level is high.

[0085] Based on the above embodiment, preferably, it further includes:

[0086] If any battery management system in any column fails, the fault data is reported through the series bus, so that other battery management systems can make corresponding responses after receiving the fault data.

[0087] Specifically, if a battery management system in a column fails, fault data is sent to other battery management systems on the same bus through the bus. After receiving the fault data, other battery management systems will know the fault status of the battery management system and make corresponding responses.

[0088] The embodiments of the present invention can reduce device signal lines, improve communication rate, and enable devices on the bus to achieve one-to-one or one-to-many communication.

[0089] In one embodiment, Figure 6 A schematic diagram of the structure of a computer device provided in an embodiment of the present invention, the computer device may be a server, and its internal structure diagram may be as follows Figure 6As shown. The computer device includes a processor, a memory, a network interface and a database connected through a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a computer storage medium and an internal memory. The computer storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the computer storage medium. The database of the computer device is used to store data generated or acquired during the execution of the data interaction method based on the battery management device, such as target data and address configuration data. The network interface of the computer device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, a data interaction method based on a battery management device is implemented.

[0090] In one embodiment, a computer device is provided, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the steps of the data interaction method based on the battery management device in the above embodiment are implemented, such as Figure 5 Steps S510-S520 are shown.

[0091] In one embodiment, a computer storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps of the data interaction method of the battery management device in the above embodiment are implemented, such as Figure 5 Steps S510-S520 are shown.

[0092] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer 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).

[0093] Those skilled in the art can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example. In actual applications, the above-mentioned functions can be distributed and completed by different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above.

[0094] The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included in the protection scope of the present invention.

Claims

1. A battery management device, characterized in that: include: M×N battery management systems, M>1, N>1, M and N are both positive integers, M represents the number of rows, and N represents the number of columns; The battery management system comprises a series input signal pin, a parallel input signal pin, a first series communication pin, a second series communication pin, a series output signal pin, a parallel output signal pin, a first parallel communication pin and a second parallel communication pin; For the battery management system in the i-th row, 0<i≤M, i is a positive integer, if the battery management system in the i-th row is connected to the parallel bus, then for any two adjacent battery management systems, the first parallel communication pins of the previous battery management system and the next battery management system are both connected to one end of the parallel bus, the second parallel communication pins of the previous battery management system and the next battery management system are both connected to the other end of the parallel bus, and the parallel output signal pin of the previous battery management system is connected to the parallel input signal pin of the next battery management system; For the battery management system of the jth column, 0<j≤N, j is a positive integer, for any two adjacent battery management systems, the first series communication pins of the previous battery management system and the next battery management system are connected to one end of the series bus corresponding to each column, the second series communication pins of the previous battery management system and the next battery management system are connected to the other end of the series bus, and the series output signal pin of the previous battery management system is connected to the series input signal pin of the next battery management system; The parallel bus is an RS485 bus; The serial bus is a CAN bus.

2. The battery management device according to claim 1, characterized in that: Also includes: If the battery management systems in the i-th row are not connected to the parallel bus, each battery management system in the i-th row is independent of each other.

3. A data interaction method based on the battery management device according to any one of claims 1 to 2, characterized in that: include: Get target data; According to the target data, data broadcast is performed through the series bus and / or the parallel bus to send the target data to each battery management system so that the target battery management system performs corresponding processing according to the target data, and the address of the target battery management system is the same as the address carried in the target data.

4. A data interaction method according to claim 3, characterized in that: The step of broadcasting data according to the target data through the series bus and / or the parallel bus to send the target data to each battery management system further includes: Broadcasting the target data to each battery management system connected to the parallel bus according to the address in the target data; Based on each battery management system connected to the parallel bus, the target data is broadcasted through the series bus to send the target data to each column of battery management systems.

5. A data interaction method according to claim 3, characterized in that: The acquiring of target data also includes: For a current battery management system in any column of battery management systems, setting the serial output signal pin of the current battery management system high, and making the current battery management system broadcast and send current address configuration data through the serial bus; Obtain a reference battery management system whose series input signal pin is at a high level, use the current address configuration data as the address of the reference battery management system, and update the current address configuration data, use the updated current address configuration data again as the current address configuration data, use the reference battery management system as the current battery management system, and repeat this step until addresses are allocated to each battery management system.

6. A data interaction method according to claim 3, characterized in that: Also includes: If any battery management system in any column fails, the fault data is reported through the series bus, so that other battery management systems can make corresponding responses after receiving the fault data.

7. A computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the steps of the data interaction method according to any one of claims 3 to 6 are implemented.

8. A computer storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the data interaction method according to any one of claims 3 to 6 are implemented.

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