CN115470165A

CN115470165A - Address allocation method, battery management system and electronic equipment

Info

Publication number: CN115470165A
Application number: CN202110655481.XA
Authority: CN
Inventors: 高云辉; 王娟; 郭志球
Original assignee: Zhejiang Jinko Solar Co Ltd; Jinko Solar Co Ltd
Current assignee: Zhejiang Jinko Solar Co Ltd; Jinko Solar Co Ltd
Priority date: 2021-06-11
Filing date: 2021-06-11
Publication date: 2022-12-13

Abstract

The embodiment of the application provides an address allocation method, a battery management system and an electronic device, wherein the method comprises the following steps: sending an address allocation instruction to each battery module, wherein the address allocation instruction is used for requesting to acquire an identification code of each battery module; receiving the identification code transmitted by each of the battery modules; generating a communication address corresponding to each identification code, wherein each communication address has uniqueness; and respectively sending the identification codes and the corresponding communication addresses to the battery modules.

Description

Address allocation method, battery management system and electronic equipment

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to an address allocation method, a battery management system, and an electronic device.

Background

Energy storage systems, such as battery management systems, are usually composed of small-capacity standard energy storage battery modules connected in series and in parallel, wherein data interaction between the battery modules and a main control device is generally completed through bus communication, and therefore, each battery module needs to be assigned a communication address.

In a first prior art, a method for allocating addresses to dial switches is provided, including: each battery module generates a physical address through a different dialing position. The first prior art has the disadvantages that the workload of field installation is increased by using the dial switch, and the phenomena of address error, repetition and the like are easy to occur, so that the system runs abnormally.

In the second prior art, a method for manually burning and allocating addresses is provided, which includes: and configuring the communication address of each battery module by burning or writing the register value. The second prior art has the disadvantage that a professional setting tool needs to be used for design, so that the installation cost and the installation difficulty are increased.

Disclosure of Invention

The application provides an address allocation method, a battery management system and electronic equipment, which can allocate communication addresses for a plurality of battery modules by using identification codes of each battery module, realize automatic address allocation and are not easy to limit the number.

In a first aspect, the present application provides an address allocation method, which is applied to a host, where the host establishes a connection with a plurality of battery modules in a battery management system, each battery module includes an identification code, and the identification codes in the battery modules are different and are used to uniquely identify the battery modules, where the method includes:

sending an address allocation instruction to the plurality of battery modules, wherein the address allocation instruction is used for requesting to acquire the identification codes of the battery modules;

receiving the identification codes sent by the battery modules;

generating communication addresses corresponding to the identification codes, wherein each communication address has uniqueness;

and respectively sending the identification codes and the corresponding communication addresses to the battery modules.

In one possible implementation manner, the instruction of allocating an address is sent to the plurality of battery modules; receiving an identification code transmitted by each of the battery modules; generating a communication address corresponding to each identification code, including:

s1, sending an address allocation instruction to the plurality of battery modules;

s2, receiving identification codes sent by the battery modules, and generating an identification code set based on the received identification codes;

s3, comparing the identification code set with a historical identification code set, and judging whether at least one historical identification code set identical to the identification code set exists or not;

s4, if at least one historical identification code set which is the same as the identification code set does not exist, the identification code set is combined into the historical identification code set and stored in the host, and the steps S1 to S3 are repeated;

and S5, if at least one historical identification code set identical to the identification code set exists, generating a plurality of communication addresses based on all identification codes in the identification code set.

In one possible implementation manner, after the sending the plurality of identification codes and the corresponding communication addresses to the battery modules respectively, the method further includes:

receiving reply information sent by each battery module after the battery module receives and stores the communication address, wherein the reply information is used for indicating that the battery module is allocated to the communication address;

outputting quantity prompt information based on the quantity of the received reply messages to determine the quantity of the battery modules with the communication addresses allocated;

when the number of the battery modules to which the communication addresses have been allocated is equal to the number of the plurality of battery modules, determining that address allocation is successful;

when the number of the battery modules to which the communication addresses have been allocated is not equal to the number of the plurality of battery modules, it is determined that address allocation has failed.

In one possible implementation manner, the outputting a quantity prompt message based on the quantity of the received reply messages includes:

judging whether the number of the received reply messages is equal to the total number of the plurality of battery modules or not;

if the number of the received reply messages is not equal to the total number of the plurality of battery modules, reading the communication addresses allocated to other battery modules except the battery module which sends the reply messages;

and outputting quantity prompt information according to the number of the read communication addresses and the number of the received reply information.

In one possible implementation manner, the plurality of battery modules are connected in series, and a head-end battery module and a tail-end battery module of the plurality of battery modules connected in series are respectively connected to the voltage acquisition device, where the method further includes:

acquiring the total voltage acquired by the voltage acquisition device at two ends of the plurality of battery modules connected in series;

respectively carrying out voltage acquisition on the plurality of battery modules in a bus communication mode, and calculating the sum of the acquired voltages of the plurality of battery modules;

judging whether the difference value of the total voltage and the sum of the collected voltages is smaller than a system sampling error or not;

if the difference is smaller than the system sampling error, outputting system normal information, and if the difference is larger than or equal to the system sampling error, outputting system fault information.

In a second aspect, the present application provides an address assignment method, applied to a battery module, where the battery module is connected to a host, the battery module includes an identification code, and the identification code is used to uniquely identify the battery module, and the method includes:

receiving an address allocation instruction sent by the host, wherein the address allocation instruction is used for requesting to acquire an identification code of the battery module;

sending the identification code of the battery module to the host;

receiving a communication address corresponding to the identification code and sent by the host, wherein the communication address has uniqueness;

and obtaining a target communication address corresponding to the identification code of the battery module from the plurality of identification codes and the communication addresses.

In one possible implementation manner, after obtaining the target communication address corresponding to the identification code of the battery module, the method further includes:

and storing the communication address, and then sending a reply message to the host, wherein the reply message is used for indicating that the battery module is allocated to the communication address.

In a third aspect, the present application provides a battery management system, comprising:

a bus;

a host for performing the method of the first aspect;

a plurality of battery modules, each of the battery modules including an identification code, the host computer being connected to each of the battery modules via the bus, the battery modules being configured to perform the method according to the second aspect.

In a fourth aspect, the present application provides an electronic device, comprising:

one or more processors; a memory; and one or more computer programs, wherein the one or more computer programs are stored in the memory, the one or more computer programs comprising instructions which, when executed by the apparatus, cause the apparatus to perform the method of the first or second aspect.

In a fifth aspect, the present application provides a computer readable storage medium having stored thereon a computer program which, when run on a computer, causes the computer to perform the method according to the first or second aspect.

In a sixth aspect, the present application provides a computer program for performing the method of the first or second aspect when the computer program is executed by a computer.

In a possible design, the program in the sixth aspect may be stored in whole or in part on a storage medium packaged with the processor, or in part or in whole on a memory not packaged with the processor.

Drawings

FIG. 1 is a schematic diagram of an address assignment method according to an embodiment of the present application;

FIG. 2 is a flowchart illustrating an address assignment method according to an embodiment of the present application;

FIG. 3 is a schematic diagram of a method of another embodiment of the address assignment method of the present application;

FIG. 4 is a schematic structural diagram of an embodiment of a battery management system according to the present application;

fig. 5 is a schematic structural diagram of an embodiment of an electronic device of the present application.

Detailed Description

The terminology used in the description of the embodiments section of the present application is for the purpose of describing particular embodiments of the present application only and is not intended to be limiting of the present application.

In a third prior art, a method for automatically allocating an address is provided, which includes: the addresses are allocated unidirectionally through hardware signals such as TX/RX or I/O, namely, the previous battery module sends an allocation instruction containing own communication addresses and a hardware signal TX to the next battery module, and the next battery module receives the allocation instruction and an RX signal, confirms own communication addresses and transmits the communication addresses to the next battery module according to the same method until the communication addresses of all the battery modules are allocated finally. The third disadvantage of the prior art is that, in the process of address allocation through hardware signals such as TX/RX, since check signals cannot be returned through unidirectional transmission, it is difficult to check on/off of TX/RX signals in the processes of production and installation, and thus it is easy to cause failure of address allocation and cause failure of inquiry.

In the fourth prior art, a method for automatically allocating addresses is further provided, including: the host module performs matching confirmation with each slave module (such as a battery module) from the own address set or according to a certain address range respectively so as to allocate a communication address to each battery module. The fourth disadvantage of the prior art is that the number of slave modules is limited by allocating addresses through the address set in the master module, and the number of invalid comparisons is too many, which wastes installation time.

Therefore, the application provides an address allocation method, a battery management system and an electronic device, which can allocate communication addresses to a plurality of battery modules by using the identification code of each battery module, realize automatic address allocation and are not easy to limit the number.

For example, the battery management system may include a bus, a host, and a plurality of battery modules, where the host establishes a connection with all the battery modules in the battery management system through the bus, and each battery module may include an identification code, and the identification code is used to uniquely identify the battery module, for example, the identification code of each battery module may be determined according to a factory code, and has uniqueness. It should be noted that the address assignment method may be applied to a battery management system, and assigns a communication address to each battery module, so as to enable the battery management system to collect information such as voltage (or electric quantity) or current of each battery module.

Fig. 1 is a schematic method diagram of an embodiment of an address assignment method according to the present application. As shown in fig. 1 and 2, the address allocation method may be applied to a host, and the method may include:

s101, sending an address allocation instruction to each battery module, wherein the address allocation instruction is used for requesting to acquire the identification code of the battery module.

Preferably, the host may broadcast an assign address command to each battery module. When each battery module receives an address allocation command sent by the host, each battery module sends an identification code to the host.

For example, before step S101, the method may further include: and judging whether the plurality of battery modules of the battery management system are started up, and if so, executing the step S101. For example, after the battery management system is installed and started, the host waits for all the battery modules to be started for a certain time period, and then broadcasts and sends an address allocation instruction to each battery module.

It should be noted that, in this embodiment, the host sends an address assignment command to all the battery modules, so as to assign communication addresses to all the battery modules. Alternatively, in some other embodiments, the host may send the assignment address command to a specific or designated battery module or modules, rather than sending the assignment address command to all battery modules, for assigning the communication address to the specific or designated battery module or modules.

And S102, receiving the identification codes sent by the battery modules.

That is, the host may receive the identification codes transmitted by each battery module to obtain the identification code set, or the identification code set may include the identification codes of a plurality of battery modules.

And S103, generating a communication address corresponding to each identification code.

That is, the host may sort the received plurality of identification codes and then calculate a communication address corresponding to each identification code, and the communication address may be used as a communication address of the battery module corresponding to the identification code, and may have uniqueness.

For example, the plurality of battery modules may include a battery module A1, a battery module A2, and a battery module A3, …, where the battery module A1 includes an identification code B1, the battery module A2 includes an identification code B2, and the third device A3 includes an identification code B3, …. Therefore, when the host receives the identification code B1 transmitted from the battery module A1, the identification code B2 transmitted from the battery module A2, and the identification code B3 … transmitted from the battery module A3, the host generates the communication address T1, the communication address T2, and the communication address T3 in accordance with the identification code B1, the identification code B2, and the identification code B3, where the communication address T1 corresponds to the identification code B1, the communication address T2 corresponds to the identification code B2, the communication address T3 corresponds to the identification code B3, and ….

In one possible implementation manner, steps S101 to S103 may include:

s201, sending an address allocation instruction to each battery module;

s202, receiving the identification codes sent by each battery module, and generating an identification code set based on the received identification codes;

s203, comparing the identification code set with a historical identification code set, and judging whether at least one historical identification code set identical to the identification code set exists or not;

s204, if at least one historical identification code set which is the same as the identification code set does not exist, the identification code set is combined into the historical identification code set and stored in the host, and the steps S1 to S3 are repeated;

s205, if at least one historical identification code set identical to the identification code set exists, generating a plurality of communication addresses based on all identification codes in the identification code set.

That is, after the host broadcasts and sends the address allocation command to the plurality of battery modules each time, the battery modules respond to the received address allocation command and send the identification codes to the host. Therefore, after the host broadcasts and sends the address allocation command each time, a group of identification code sets can be received and stored in the memory of the host.

It should be noted that the historical set of identifiers may be a set of identifiers already existing in the memory of the host, or alternatively, the historical set of identifiers may be a set of identifiers previously received and stored in the host. If the currently received identification code set is the same as at least one (or at least one group, such as two groups) historical identification code set (such as the number of identification codes and information are the same), a plurality of communication addresses are generated according to all the identification codes in the currently received identification code set, so that the identification codes of all the battery modules are ensured to be received, the communication addresses are distributed to all the battery modules, and omission is avoided. And if at least one historical identification code set which is the same as the currently received identification code set does not exist, storing the currently received identification code set into the main machine memory, and marking the currently received identification code set as the historical identification code set.

For example, the set of identification codes is a first set of identification codes C1, a second set of identification codes C2, a third set of identification codes C3, a fourth set of identification codes C4, and a fifth set of identification codes C5 …. After the host broadcasts and sends an address allocation instruction for the first time, the host receives a first identification code set C1, wherein the first identification code set C1 comprises an identification code B1 and an identification code B2. And then judging whether a plurality of identical identification code sets exist or not, if at least two identical identification code sets do not exist (for example, a plurality of continuously received identical identification code sets such as 3 sets and the like), broadcasting and sending an address distribution instruction for the second time by the host computer, and receiving a second identification code set C2, wherein the second identification code set C2 comprises an identification code B1, an identification code B2 and an identification code B3. And then judging whether a plurality of groups of same identification code sets exist again, if the plurality of groups of same identification code sets do not exist, broadcasting and sending an address distribution instruction for the third time by the host computer, and receiving a third identification code set C3, wherein the third identification code set comprises an identification code B1, an identification code B2, an identification code B3 and an identification code B4. And then judging whether a plurality of groups of same identification code sets exist again, if so, … and so on.

Further, if the fifth identification code set C5 is currently received and it is determined that the fifth identification code set C5 is the same as the plurality of sets of historical identification codes (e.g., the fifth identification code set C5 is the same as the third identification code set C3 and the fourth identification code set C4), the host generates a plurality of communication addresses (e.g., the communication address T1 corresponding to the identification code B1, the communication address T2 corresponding to the identification code B2, the communication address T3 corresponding to the identification code B3, and the communication address T4 corresponding to the identification code B4) according to all the identification codes (e.g., the identification codes B1, the identification codes B2, the identification codes B3, and the identification codes B4) in the fifth identification code set C5, and stops broadcasting and sending the address allocation command.

And S104, sending the identification codes of the plurality of battery modules and the communication addresses to each battery module.

Preferably, the host may broadcast a plurality of identification codes and a communication address corresponding to each identification code to each battery module. Each battery module can receive all the identification codes sent by the host and the communication addresses corresponding to the identification codes, and obtain target communication addresses corresponding to the own identification codes from the received identification codes and the communication addresses, wherein the target communication addresses are used as the communication addresses of the battery modules.

It can be understood that the battery modules are in one-to-one correspondence with the identification codes, and the identification codes are in one-to-one correspondence with the communication addresses, so that the communication addresses allocated to each battery module are unique according to the identification codes of the battery modules to ensure communication reliability, and the number of devices is not easily limited.

Optionally, after obtaining the target communication address corresponding to the self identification code, the battery module sends a reply message to the host, where the reply message is used to indicate that the battery module has been assigned to the communication address. And the host stops broadcasting after receiving the reply information sent by each battery module.

In one possible implementation manner, after step S104, the method further includes:

s301, receiving reply information sent by a plurality of battery modules after the battery modules receive and store communication addresses, wherein the reply information is used for indicating that the battery modules are allocated to the communication addresses;

s302, based on the number of the received reply messages, outputting number prompt messages to determine the number of the battery modules with the communication addresses allocated;

s303, when the number of the battery modules with the communication addresses allocated is equal to that of the battery modules in the battery management system, judging that the addresses are successfully allocated;

s304, when the number of the battery modules with the communication addresses allocated is not equal to the number of the battery modules in the battery management system, the address allocation is judged to be failed.

It should be noted that the battery module needs to be directly written into the memory after receiving the communication address. Generally, the operation time for writing an address into the memory is relatively long, if the host directly reads from the battery module, the host cannot read the communication address of the battery module immediately under the condition that the communication address writing operation of the battery module is not completed, and thus the reading fails, even in order to improve the reading success rate, a delay time of 0.5 to 1.0s must be set on the host, that is, after the address is allocated, the host delays for 0.5 to 1.0s and then reads the communication address from the battery module. By adopting the method of the embodiment, the battery module immediately sends the reply information to the host after receiving the communication address and successfully storing the communication address, so that the risk of reading failure is avoided, delay time is not required to be set, and the efficiency of acquiring the reply information and outputting the quantity prompt information by the host is greatly improved.

For example, the quantity prompt message may be used to indicate that the battery module has successfully been assigned a communication address and/or the number (or name, number, etc.) of the battery module that has successfully been assigned a communication address, for example, the quantity prompt message may include a light emitted by an indicator light, wherein the number of times the light of the indicator light flashes may be determined according to the quantity of the reply message. Therefore, the staff can compare the number of times of light flicker of pilot lamp with the quantity of all battery modules in the system, and check whether all battery modules are successful in assigning communication addresses, and the check mode is simple, quick and convenient to maintain.

It can be understood that the quantity prompt information may also be displayed on a display interface, so as to provide, in a picture display manner, the battery modules and the quantity (or name, number, and the like) of the successfully allocated communication addresses for the worker, and the quantity prompt information may also be sent to the remote server or the cloud and the like through the communication network, so that the worker can obtain, at the remote server or the cloud and the like, the battery modules and the quantity (or name, number, and the like) of the successfully allocated communication addresses, which is beneficial to implementing remote maintenance, and is not limited herein.

In one possible implementation manner, step S302 includes:

s401, judging whether the number of the received reply messages is equal to the total number of the plurality of battery modules or not;

s402, if the number of the received reply messages is not equal to the total number of the plurality of battery modules, reading the communication addresses allocated to other battery modules except the battery module which sends the reply messages;

and S403, outputting quantity prompt information according to the number of the read communication addresses and the number of the received reply messages.

That is, considering that the packet loss rate in the communication process, or the packet loss rate is interfered by an external signal, or the host may not receive the reply information sent by the battery module due to factors such as writing failure of system software, if the host does not receive the reply information sent by a certain battery module or certain battery modules (i.e., other battery modules except the battery module sending the reply information), the host may actively read the communication address allocated to the certain battery module or certain battery modules, and obtain the number of the read communication addresses.

For example, when the host does not receive reply information sent by a certain battery module, the host can read the communication address allocated to the battery module for multiple times (such as 3 times), and after the multiple reading is finished, the host outputs quantity prompt information according to the sum of the number of the read communication addresses and the number of the received reply information, so that the quantity is actively known when the reply information is not received in time due to faults, and reliable reference basis is provided for a worker to check and judge whether all the communication addresses allocated to the battery module are successful.

In one possible implementation manner, a plurality of head-end battery modules and tail-end battery modules connected in series to the battery modules are respectively connected to a voltage acquisition device, and the method further includes:

s501, acquiring total voltage acquired by the voltage acquisition device at two ends of a plurality of battery modules connected in series;

s502, respectively carrying out voltage acquisition on each battery module which is allocated to the communication address in a bus communication mode, and calculating the sum of the acquired voltages of the plurality of battery modules;

s503, judging whether the difference value of the total voltage and the sum of the collected voltages is smaller than a system sampling error;

s504, if the difference value is smaller than the system sampling error, outputting system normal information, and if the difference value is larger than or equal to the system sampling error, outputting system fault information.

That is to say, the battery modules in the plurality of battery modules are connected in series, the total voltage is used for representing the total voltage at the two ends of the plurality of battery modules, the battery management module may further include a voltage acquisition device, the voltage acquisition device is used for acquiring the total voltage at the two ends of the plurality of battery modules, for example, the voltage acquisition device may include a voltmeter and the like, the two ends of the voltage acquisition device are respectively connected to the head-end battery module and the tail-end battery module of the plurality of battery modules connected in series, and the detected voltage is the total voltage. The host can be electrically connected with the voltage acquisition device, and in step S501, the host can send a voltage acquisition signal to the voltage acquisition device to control the voltage acquisition device to acquire the total voltage at two ends of the plurality of battery modules connected in series, so as to realize automation. Or, the voltage acquisition device is operated by related personnel to acquire the total voltage, and the acquired total voltage is sent to the host.

After the communication address is assigned to each battery module, the host may perform voltage acquisition on each battery module (e.g., a battery cell) in a bus communication manner to obtain the acquired voltage of each battery module, and then calculate to obtain the total acquired voltage of all the battery modules, such as the numerical sum of the acquired voltages of all the battery modules.

The system normal information may be used to indicate that the system is normal, and the system fault information may be used to indicate a system fault. For example, the plurality of battery modules are sequentially connected in series through electric wires, the host is in communication connection with each battery module through a bus, the voltage acquisition device acquires total voltages at two ends of the plurality of battery modules connected in series, and the bus communication mode acquires voltages of the battery modules assigned to addresses to obtain the acquired voltage sum of the battery modules. If a certain battery module is not connected to the bus, or communication disconnection (such as missed connection or disconnection) occurs, and other faults, the sum of the collected voltages is directly smaller than the total voltage. For example, the battery management system may include 10 battery modules connected in series, and the total voltage of the 10 battery modules connected in series may be collected by the voltage collection device (voltmeter), and if only 9 battery modules are connected to the bus with the host, the collected voltage sum of the 9 battery modules may be collected only by the bus communication method.

In step S502, if the difference between the total voltage and the sum of the collected voltages is smaller than the system sampling error (if the difference is within the system sampling error range), outputting system normal information, where the system normal information may include a green light emitted by an indicator light (or a green flashing light, etc.). If the difference between the total voltage and the sum of the collected voltages is greater than or equal to the system sampling error, outputting system fault information, wherein the system fault information may include red light (or red flashing light, etc.) emitted by an indicator light, and the system sampling error may be a preset value or determined according to the minimum value of the collected voltages of the battery modules, such as being less than the minimum value of the collected voltages of the battery modules. Therefore, the staff can find whether the system has faults or not quickly through the light prompt of the indicator lamp. Therefore, in the method provided by the embodiment, the mode for checking whether the system has a fault is simpler and more efficient.

Optionally, the system failure information may also include a failure solution. For example, the system fault information may also be used to indicate the problems existing in the system wiring and the fault solutions (such as the un-wired or broken battery modules, and the names, numbers or positions of the un-wired battery modules), so as to help the customer to quickly complete the troubleshooting.

For example, the system normal information or the system fault information may be displayed on a display interface, or sent to a remote server or a cloud terminal via a communication network, and the like, without being limited thereto.

It is to be understood that some or all of the steps or operations in the above-described embodiments are merely examples, and other operations or variations of various operations may be performed by the embodiments of the present application. Further, the various steps may be performed in a different order presented in the above-described embodiments, and it is possible that not all of the operations in the above-described embodiments are performed.

Fig. 3 is a schematic diagram illustrating an address allocation method according to another embodiment of the present application. As shown in fig. 3, the method may be applied to a battery module, and the method may include:

s601, receiving an address allocation instruction sent by the host, wherein the address allocation instruction is used for requesting to acquire an identification code of the battery module;

s602, sending the identification code of the battery module to the host;

s603, receiving a plurality of identification codes sent by the host and communication addresses corresponding to the identification codes;

s604, obtaining a target communication address corresponding to the identification code of the battery module from the plurality of identification codes and communication addresses.

The battery module may include an identification code (e.g., a self-identification code) for uniquely identifying the battery module, for example, the identification code of the battery module may be determined according to a factory code, and has uniqueness.

The host and the battery module are connected through a bus. The host can broadcast and send the distribution address instruction to a plurality of battery modules, the battery modules receive the distribution address instruction sent by the host and send self identification codes to the host, the host receives the identification codes sent by the battery modules and generates communication addresses corresponding to the identification codes of each battery module, the communication addresses corresponding to the identification codes and the identification codes are sent to the battery modules, and the battery modules select target communication addresses from the communication addresses according to the self identification codes.

It is understood that specific principles or functions of steps S601 to S604 may refer to the address allocation method shown in fig. 1, and are not described herein again.

In one possible implementation manner, after step S604, the method further includes:

s605, sending reply information to the host, wherein the reply information is used for indicating that the battery module is allocated to a communication address.

It is understood that specific principles or functions of step S605 may refer to the address allocation method shown in fig. 1, and are not described herein again.

It is to be understood that some or all of the steps or operations in the above-described embodiments are merely examples, and other operations or variations of various operations may be performed by the embodiments of the present application. Further, the various steps may be performed in a different order presented in the above embodiments, and not all of the operations in the above embodiments may be performed.

Fig. 4 is a schematic structural diagram of an embodiment of the battery management system 100 of the present application. As shown in fig. 4, the battery management system 100 may include a bus 110, a host 120, and a plurality of battery modules 130, where each of the battery modules 130 includes an identification code, and the host 120 and the plurality of battery modules 130 are connected through the bus 110.

Bus 110 may include a full duplex bus that may support multiple devices simultaneously transmitting data to the communication bus for data interaction between host 120 and battery module 130, and between battery module 130 and battery module 130.

The host 120 may comprise a host, and the host 120 may be configured to perform the steps of:

receiving the identification codes sent by the battery modules;

In one possible implementation manner, the host is further configured to perform the following steps:

s4, if at least one historical identification code set which is the same as the identification code set does not exist, the identification code set is used as the historical identification code set and is stored in the host, and the steps S1 to S3 are repeated;

In one possible implementation manner, after the plurality of identification codes and the corresponding communication addresses are respectively sent to the battery modules, the host is further configured to execute the following steps:

In one possible implementation manner, the host executes the step of outputting quantity prompt information based on the quantity of the received reply information, and further includes:

if the number of the received reply messages is not equal to the total number of the plurality of battery modules, reading the communication addresses allocated to other battery modules except the battery module which sends out the reply messages;

In one possible implementation manner, the plurality of battery modules are connected in series, a head end battery module and a tail end battery module of the plurality of battery modules connected in series are respectively connected to the voltage acquisition device, and the host is further configured to perform the steps of:

The battery module 130 may include a battery module (e.g., a slave), and a plurality of battery modules may be connected in series and/or in parallel for storing energy. The battery module 130 may be configured to perform the steps of:

sending the identification code of the battery module to the host;

receiving a plurality of identification codes and a communication address corresponding to each identification code sent by the host;

and obtaining a target communication address corresponding to the identification code of the battery module from the plurality of identification codes and the communication address.

In one possible implementation manner, after the obtaining of the target communication address corresponding to the identification code of the battery module, the battery module 130 is further configured to perform the following steps:

and sending a reply message to the host, wherein the reply message is used for indicating that the battery module is allocated to the communication address.

It is understood that the host 120 of the battery management system 100 provided in the embodiment shown in fig. 4 may be configured to execute the technical solution of the method embodiment shown in fig. 1 of the present application, and the battery module 130 of the battery management system 100 may be configured to execute the technical solution of the method embodiment shown in fig. 3 of the present application, and the implementation principle and the technical effect thereof may further refer to the related descriptions in the method embodiments.

For example, the host or the battery module may include a processing element or a plurality of modules, and the division of each module is only a division of a logic function, and the actual implementation may be wholly or partially integrated into one physical entity, or may be physically separated. And these modules can be realized in the form of software called by processing element; or can be implemented in the form of hardware; part of the modules can be realized in a mode that software is called by a processing element, and part of the modules can be realized in a mode of hardware, and can also be integrated in a certain chip of the electronic equipment. Other modules are implemented similarly. In addition, all or part of the modules can be integrated together or can be independently realized. In implementation, each step of the above method or each module above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in the form of software.

For example, the above modules may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), among others. For another example, these modules may be integrated together and implemented in the form of a System-On-a-Chip (SOC).

Fig. 5 is a schematic structural diagram of an embodiment of an electronic device of the present application, and as shown in fig. 5, the electronic device may include: one or more processors; a memory; and one or more computer programs.

The electronic device may be a host device of a battery management system, a battery module, or the like.

Wherein the one or more computer programs are stored in the memory, the one or more computer programs including instructions that, when executed by the apparatus, cause the apparatus to perform the steps of:

receiving the identification codes sent by the battery modules;

In one possible implementation manner, when the instruction is executed by the apparatus, the apparatus is caused to execute the instruction for sending the allocation address to the plurality of battery modules; receiving an identification code transmitted by each of the battery modules; generating a communication address corresponding to each identification code, including:

In one possible implementation manner, when the instruction is executed by the apparatus, after the apparatus executes the sending of the plurality of identification codes and the corresponding communication addresses to the respective battery modules, the apparatus further executes:

In one possible implementation manner, when the instruction is executed by the device, the device is caused to execute the outputting of the quantity prompt message based on the quantity of the received reply messages, where the outputting of the quantity prompt message includes:

In one possible implementation manner, the plurality of battery modules are connected in series, a head-end battery module and a tail-end battery module of the plurality of battery modules connected in series are respectively connected to the voltage acquisition device, and when the instruction is executed by the apparatus, the apparatus further executes:

In one possible implementation manner, the battery module includes an identification code, and when the instruction is executed by the apparatus, the apparatus further executes:

sending the identification code of the battery module to the host;

and obtaining a target communication address corresponding to the identification code of the battery module from the plurality of identification codes and communication addresses.

In one possible implementation manner, when the instructions are executed by the apparatus, the apparatus further includes, after the generating the target communication address corresponding to the identification code of the battery module is executed:

The electronic device may be configured to perform the functions/steps of the address assignment method provided in the embodiments shown in fig. 1 or fig. 3 of the present application.

As shown in fig. 5, the electronic device 900 includes a processor 910 and a memory 920. Wherein, the processor 910 and the memory 920 can communicate with each other and transmit control and/or data signals through the internal connection path, the memory 920 is used for storing computer programs, and the processor 910 is used for calling and running the computer programs from the memory 920.

The memory 920 may be a read-only memory (ROM), other types of static storage devices that can store static information and instructions, a Random Access Memory (RAM), or other types of dynamic storage devices that can store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compact disc, laser disc, optical disc, digital versatile disc, blu-ray disc, etc.), magnetic disc storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, etc.

The processor 910 and the memory 920 may be combined into a processing device, and more generally, independent components, and the processor 910 is configured to execute the program codes stored in the memory 920 to realize the functions. In particular implementations, the memory 920 may be integrated with the processor 910 or may be separate from the processor 910.

In addition, in order to further improve the functions of the electronic device 900, the electronic device 900 may further include one or more of a communication module 930, a power supply 940, an input unit 950, and the like.

Optionally, the power supply 950 is used to provide power to various devices or circuits in the electronic device.

It should be appreciated that the electronic device 900 shown in fig. 5 is capable of implementing various processes of the methods provided by the embodiments shown in fig. 1 of the present application. The operations and/or functions of the respective modules in the electronic device 900 are respectively for implementing the corresponding flows in the above-described method embodiments. Reference may be made specifically to the description of the embodiments of the method illustrated in fig. 1 or fig. 3 of the present application, and a detailed description is appropriately omitted herein to avoid redundancy.

It should be understood that the processor 910 in the electronic device 900 shown in fig. 5 may be a system on chip SOC, and the processor 910 may include a Central Processing Unit (CPU), and may further include other types of processors, such as: an image Processing Unit (hereinafter, referred to as GPU), and the like.

In summary, various parts of the processors or processing units within the processor 910 may cooperate to implement the foregoing method flows, and corresponding software programs for the various parts of the processors or processing units may be stored in the memory 920.

The application also provides an electronic device, the device includes a storage medium and a central processing unit, the storage medium may be a non-volatile storage medium, a computer executable program is stored in the storage medium, and the central processing unit is connected with the non-volatile storage medium and executes the computer executable program to implement the method provided by the embodiment shown in fig. 1 or fig. 3 of the present application.

In the above embodiments, the processors may include, for example, a CPU, a DSP, a microcontroller, or a digital Signal processor, and may further include a GPU, an embedded Neural Network Processor (NPU), and an Image Signal Processing (ISP), and the processors may further include necessary hardware accelerators or logic Processing hardware circuits, such as an ASIC, or one or more integrated circuits for controlling the execution of the program according to the technical solution of the present application. Further, the processor may have the functionality to operate one or more software programs, which may be stored in the storage medium.

Embodiments of the present application further provide a computer-readable storage medium, in which a computer program is stored, and when the computer program runs on a computer, the computer is caused to execute the method provided in the embodiment shown in fig. 1 or fig. 3 of the present application.

Embodiments of the present application also provide a computer program product, which includes a computer program, when the computer program runs on a computer, the computer is caused to execute the method provided by the embodiments shown in fig. 1 or fig. 3 of the present application.

In the embodiments of the present application, "at least one" means one or more, and "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, and means that there may be three relationships, for example, a and/or B, and may mean that a exists alone, a and B exist simultaneously, and B exists alone. Wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" and similar expressions refer to any combination of these items, including any combination of singular or plural items. For example, at least one of a, b, and c may represent: a, b, c, a and b, a and c, b and c or a and b and c, wherein a, b and c can be single or multiple.

Those of ordinary skill in the art will appreciate that the various elements and algorithm steps described in connection with the embodiments disclosed herein can be implemented as electronic hardware, computer software, or combinations of electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, any function, if implemented in the form of a software functional unit and sold or used as a separate product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

The above description is only an embodiment of the present application, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present disclosure, and all of them should be covered by the protection scope of the present application. The protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. An address allocation method, applied to a host, wherein the host establishes a connection with a plurality of battery modules in a battery management system, each battery module includes an identification code, and the identification codes in the battery modules are different and are used for uniquely identifying the battery modules, the method comprising:

receiving the identification codes sent by the battery modules;

2. The method of claim 1, wherein the sending an assign address command to the plurality of battery modules; receiving an identification code transmitted by each of the battery modules; generating a communication address corresponding to each identification code, including:

3. The method of claim 1, wherein after the sending the plurality of identification codes and the corresponding communication addresses to the respective battery modules, the method further comprises:

receiving reply information sent by each battery module after the communication address is received and stored, wherein the reply information is used for indicating that the battery module is allocated to the communication address;

4. The method of claim 3, wherein outputting a quantity prompt based on the quantity of reply messages received comprises:

5. The method of any one of claims 1 to 4, wherein the plurality of battery modules are connected in series, and a head-end battery module and a tail-end battery module of the plurality of battery modules connected in series are respectively connected to a voltage acquisition device, the method further comprising:

6. An address allocation method is applied to a battery module, the battery module is connected with a host, the battery module comprises an identification code, and the identification code is used for uniquely identifying the battery module, and the method comprises the following steps:

sending the identification code of the battery module to the host;

7. The method of claim 6, wherein after the obtaining the target communication address corresponding to the identification code of the battery module, the method further comprises:

8. A battery management system, comprising:

a bus;

a host for performing the method of any one of claims 1-5;

a plurality of battery modules, each of the battery modules including an identification code therein, the host computer establishing a connection with the respective battery module via the bus, the battery modules being configured to perform the method of any of claims 6-7.

9. An electronic device, comprising:

one or more processors; a memory; and one or more computer programs, wherein the one or more computer programs are stored in the memory, the one or more computer programs comprising instructions which, when executed by the apparatus, cause the apparatus to perform the method of any of claims 1-7.

10. A computer-readable storage medium, in which a computer program is stored which, when run on a computer, causes the computer to carry out the method according to any one of claims 1 to 7.