CN117170716A - A power exchange cabinet program upgrade method, device, computer equipment and storage medium - Google Patents

Abstract

The embodiment of the invention belongs to the technical field of power conversion cabinets, and relates to a method, a device, computer equipment and a storage medium for upgrading a power conversion cabinet program, wherein the method comprises the following steps: receiving a firmware update request to be updated issued by an upper computer, and downloading a difference patch file and a compressed package file by a battery exchange cabinet; extracting the backup current version firmware from the local storage of the power conversion cabinet, and combining the difference patch file with the current version firmware by using a bspatich algorithm to generate new version firmware; comparing the new MD5 value of the new version firmware with the MD5 value of the firmware to be upgraded based on an MD5 algorithm, and downloading if the new MD5 value is completely consistent with the MD5 value of the firmware to be upgraded; and running the new version firmware, monitoring various parameters of the running new version firmware, comparing version information, prompting the completion of upgrading if the parameters are completely consistent, and simultaneously storing the new version firmware as a backup file. Compared with the prior art, the method has the remarkable effects of less occupied resources, less network downloading transmission quantity, high upgrading efficiency and low consumption flow in the aspect of updating the program firmware of the power conversion cabinet.

Description

A power exchange cabinet program upgrade method, device, computer equipment and storage medium

Technical field

The present invention relates to the technical field of power replacement cabinets, and in particular to a power replacement cabinet program upgrade method, device, computer equipment and storage medium.

Background technique

With the rapid development of new energy, more and more power swap cabinets are installed and deployed for battery charging safety. However, in actual operation of power swapping cabinets, a series of problems such as changes in customer requirements and software logic corrections often need to be dealt with. Since most of the power swapping cabinets are installed and deployed outdoors in relatively scattered locations, if every change requires operation and maintenance personnel to complete the upgrade on-site, it will cause huge waste of operation and maintenance costs.

At present, the update of the power replacement cabinet program is generally based on the remote update of the mobile network. However, as people's demand for the functions of power swap cabinets becomes more and more abundant, and their aesthetics become higher and higher, the firmware that indirectly causes the logic processing of power swap cabinets becomes larger and larger, occupying more and more resources, resulting in the firmware The larger the size, the slower the network download and transmission will be when updating, and the more hardware storage resources will be occupied, the lower the upgrade efficiency will be, and it will also cause excessive data traffic charges.

Contents of the invention

The purpose of the embodiments of the present invention is to propose a method, device, computer equipment and storage medium for upgrading the program of a power replacement cabinet, so as to solve the problem of slow network download transmission, high hardware storage resource usage, and high upgrade efficiency when updating the existing power replacement cabinet. Low, and causing the problem of excessively high traffic charges.

In order to solve the above technical problems, embodiments of the present invention provide a power exchange cabinet program upgrade method, which adopts the following technical solutions:

Receive the update request of the firmware to be upgraded issued by the host computer, and the power exchange cabinet downloads the difference patch file and the compressed package file. The compressed package file includes the version information and MD5 value of the firmware to be upgraded;

Extract the backed up current version of the firmware from the local storage of the power swap cabinet, and use the bspatch algorithm to merge the difference patch file with the current version of the firmware to generate a new version of the firmware. The new version of the firmware includes new version information and a new MD5 value. ;

Based on the MD5 algorithm, compare whether the new MD5 value of the new version of the firmware is completely consistent with the MD5 value of the firmware to be upgraded, and if they are completely consistent, download the new version of the firmware;

Run the new version of the firmware, monitor various parameters of the new version of the firmware and compare whether the new version information is completely consistent with the version information of the firmware to be upgraded. If they are completely consistent, it will prompt that the upgrade is completed and save the new version of the firmware. as a backup file.

Further, before the step of receiving the firmware update request to be upgraded issued by the host computer, the step also includes the following steps:

Obtain the firmware to be upgraded, run the bsdiff tool on the host computer, compare the binary differences between the firmware to be upgraded and the current version of the firmware of the power swap cabinet, and generate a difference patch file.

Further, the steps of generating the difference patch file include:

Use the bsdiff tool to match the longest identical string between the firmware to be upgraded and the current version of the firmware;

Identify the same parts in each string, obtain the difference character position information between the firmware to be upgraded and the current version of the firmware, and generate a binary file containing the difference character position information and known string information;

Compress binary files to get differential patch files.

Further, when obtaining the firmware to be upgraded, the MD5 algorithm is first used to verify the MD5 value of the firmware to be upgraded. If the verification passes, it can be obtained. If the verification fails, the MD5 value verification exception information is generated and fed back to the host computer. .

Further, if there are abnormalities in various parameters monitoring the operation of the new version of the firmware, and if the comparison of the new version information and the version information of the firmware to be upgraded are not completely consistent, an upgrade failure will be prompted and abnormal information of the new version of the firmware will be generated. Feedback to the host computer, and exit the upgrade to return to the running of the current version of the firmware.

In order to solve the above technical problems, embodiments of the present invention also provide a power exchange cabinet program upgrade device, which includes:

The download module is used to receive the update request of the firmware to be upgraded issued by the host computer, and the power exchange cabinet downloads the difference patch file and the compressed package file. The compressed package file includes the version information and MD5 value of the firmware to be upgraded;

A merging module, used to extract the backup current version firmware from the local storage of the power exchange cabinet, use the bspatch algorithm to merge the difference patch file with the current version firmware, and generate a new version firmware, where the new version firmware includes a new version message and new MD5 value;

The verification module is used to compare whether the new MD5 value of the new version of the firmware is completely consistent with the MD5 value of the firmware to be upgraded based on the MD5 algorithm. If they are completely consistent, download the new version of the firmware;

The monitoring module is used to run the new version of the firmware, monitor various parameters of the new version of the firmware and compare whether the new version information is completely consistent with the version information of the firmware to be upgraded. If they are completely consistent, it will prompt that the upgrade is completed and save it at the same time. The new version of the firmware serves as a backup file.

Further, it is characterized in that, before receiving the firmware update request to be upgraded issued by the host computer, it also includes:

The difference module is used to obtain the firmware to be upgraded. The host computer runs the bsdiff tool to compare the binary differences between the firmware to be upgraded and the current version of the firmware of the power swap cabinet to generate a difference patch file.

Further, it is characterized in that the generation of the difference patch file includes:

Use the bsdiff tool to match the longest identical string between the firmware to be upgraded and the current version of the firmware;

Identify the same parts in each string, obtain the difference character position information between the firmware to be upgraded and the current version of the firmware, and generate a binary file containing the difference character position information and known string information;

Compress binary files to get differential patch files.

In order to solve the above technical problems, embodiments of the present invention also provide a computer device, which adopts the following technical solution:

It includes a memory and a processor, and program upgrade readable instructions are stored in the memory. When the processor executes the program upgrade readable instructions, the steps of the power exchange cabinet program upgrade method described in any one of the above are implemented.

In order to solve the above technical problems, embodiments of the present invention also provide a computer-readable storage medium, which adopts the following technical solution:

The computer-readable storage medium stores program upgrade readable instructions. When the program upgrade readable instructions are executed by the processor, the steps of the power exchange cabinet program upgrade method described in any one of the above are implemented.

The invention provides a method for upgrading a power exchange cabinet program. By receiving a firmware update request to be upgraded issued by a host computer, the power exchange cabinet downloads a difference patch file and a compressed package file; and extracts the backup program from the local storage of the power exchange cabinet. For the current version of the firmware, use the bspatch algorithm to merge the difference patch file with the current version of the firmware to generate a new version of the firmware; based on the MD5 algorithm, compare whether the new MD5 value of the new version of the firmware is completely consistent with the MD5 value of the firmware to be upgraded. If so, If they are consistent, download the new version of the firmware; run the new version of the firmware, monitor the parameters of the new version of the firmware and compare whether the new version information is completely consistent with the version information of the firmware to be upgraded. If they are completely consistent, an upgrade will be prompted. Done while saving the new version of the firmware as a backup file. Compared with the existing technology, it has the remarkable effects of consuming less resources, less network download and transmission volume, high upgrade efficiency, and low traffic consumption in terms of updating the program firmware of the power exchange cabinet.

Description of drawings

In order to explain the solution of the present invention more clearly, a brief introduction will be given below to the drawings needed to describe the embodiments of the present invention. Obviously, the drawings in the following description are some embodiments of the present invention, which are of great significance to this field. Ordinary technicians can also obtain other drawings based on these drawings without exerting creative work.

Figure 1 is an exemplary system architecture diagram in which the present invention may be applied;

Figure 2 is a flow chart of a preferred embodiment of the power exchange cabinet program upgrade method of the present invention;

Figure 3 is a schematic structural diagram of the power exchange cabinet program upgrade device of the present invention;

Figure 4 is a schematic diagram of a preferred embodiment of the computer equipment of the present invention.

Detailed ways

Unless otherwise defined, all technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the technical field belonging to the present invention; the terms used herein in the specification of the application are for the purpose of describing specific embodiments only. It is not intended to limit the present invention; the terms "including" and "having" and any variations thereof in the description and claims of the present invention and the above description of the drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the description and claims of the present invention or the above-mentioned drawings are used to distinguish different objects, rather than describing a specific sequence.

Reference herein to "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those skilled in the art understand, both explicitly and implicitly, that the embodiments described herein may be combined with other embodiments.

In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

As shown in Figure 1, the system architecture 100 may include a terminal device 101, a network 102 and a server 103. The network 102 is a medium used to provide a communication link between the terminal device 101 and the server 103 . Network 102 may include various connection types, such as wired, wireless communication links, or fiber optic cables, among others.

The user can use the terminal device 101 to interact with the server 103 through the network 102 to receive or send messages, etc. Various communication client applications can be installed on the terminal device 101, such as web browser applications, shopping applications, search applications, instant messaging tools, email clients, social platform software, etc.

The terminal device 101 may be a variety of electronic devices that have a display screen and support web browsing, including but not limited to smartphones, tablet computers, e-book readers, MP3 players (Moving Picture Experts Group AudioLayer III, Moving Picture Experts Group Audio Layer III, Moving Picture Experts Group Audio Layer III). Layer 3), MP4 (Moving Picture Experts GroupAudio Layer IV, Moving Picture Experts GroupAudio Layer IV, Moving Picture Experts Compression Standard Audio Layer 4) players, laptops and desktop computers, etc.

The server 103 may be a server that provides various services, such as a backend server that provides support for pages displayed on the terminal device 101.

It should be noted that the power exchange cabinet program upgrade method provided by the embodiment of the present invention is generally executed by a server/terminal device. Correspondingly, a device for power exchange cabinet program upgrade is generally provided in the server/terminal device.

It should be understood that the numbers of terminal devices 101, networks 102 and servers 103 in Figure 1 are only illustrative. Depending on implementation needs, there can be any number of end devices, networks, and servers.

Continuing to refer to FIG. 2 , a flow chart of a preferred embodiment of the power exchange cabinet program upgrade method according to the present invention is shown. The power exchange cabinet program upgrade method includes: step S0, step S1, step S2, step S3 and step S4.

In step S0, the firmware to be upgraded is obtained, and the host computer runs the bsdiff tool to compare the binary differences between the firmware to be upgraded and the current version of the firmware of the power swap cabinet to generate a difference patch file.

In the embodiment of the present invention, the firmware to be upgraded is prepared in advance. Before issuing the firmware to be upgraded, the host computer needs to perform difference processing first. Among them, bsdiff is a tool used to make differences. For example, the binary difference comparison method will File A and backup file B are compared from beginning to end. If they encounter differences, they are marked and placed in file C. This C file is called a difference patch file.

Further, the steps of generating the difference patch file include:

Use the bsdiff tool to match the longest identical string between the firmware to be upgraded and the current version of the firmware;

Identify the same parts in each string, obtain the difference character position information between the firmware to be upgraded and the current version of the firmware, and generate a binary file containing the difference character position information and known string information;

Compress binary files to get differential patch files.

In the embodiment of the present invention, the algorithm of the bsdiff tool is to match the longest identical string, replace the identical parts with 0, and finally use a conventional compression algorithm to compress. The difference principle is as follows:

Firmware to be upgraded: abedsfa sdfaods, where abedsfa is the longest identical character and sdfaods is the extra character;

Current version of firmware: abcdsfa aa, where abcdsfa is the longest same character, aa is different from sdfaods.

It can be seen that the longest identical character contained in the firmware to be upgraded is abedsfa, which can be identified as a difference string of 0020000. It can be efficiently compressed because it contains a large number of "0"s, and the remaining characters sdfaods are additional characters. , is also different from the aa of the last word, which can be used as an extra string. Therefore, n compressed difference strings + extra strings form a difference patch file. For another example, if the difference file is "000000", you can use the two characters "60" instead, which means 6 zeros, to achieve efficient compression.

It should be noted that the difference between two adjacent versions of firmware of the power swap cabinet is actually very small. Therefore, the difference patch file plays a role in speeding up the conversion.

Further, when obtaining the firmware to be upgraded, the MD5 algorithm is first used to verify the MD5 value of the firmware to be upgraded. If the verification passes, it can be obtained. If the verification fails, the MD5 value verification exception information is generated and fed back to the host computer. .

In step S1, after receiving the update request of the firmware to be upgraded issued by the host computer, the power exchange cabinet downloads the difference patch file and the compressed package file. The compressed package file includes the version information and MD5 value of the firmware to be upgraded.

In the embodiment of the present invention, according to the actual application plan, the power exchange cabinet is installed and deployed outdoors in various places with relatively scattered locations. A program for remotely updating the power exchange cabinet based on the mobile network is used, but it is different from the existing technology. Specifically, Yes, download the difference patch file and compressed package file according to the request. Among them, the difference patch file has different program location information that distinguishes the old and new versions, which facilitates the point-to-point replacement and correction upgrade of the program location without the overhead caused by the overall upgrade of the entire version of the firmware. It eliminates the defects of capital, time-consuming, inefficiency and traffic consumption, and eliminates the need for staff to go to each power-swapping cabinet site to upgrade and deal with them one by one, achieving the remarkable effect of remote and efficient upgrade.

In step S202, extract the backed up current version firmware from the local storage of the power exchange cabinet, use the bspatch algorithm to merge the difference patch file with the current version firmware, and generate a new version firmware, where the new version firmware includes a new version message and new MD5 value.

In the embodiment of the present invention, the backup of the current version of the firmware extracted from the local storage of the power exchange cabinet can be directly called. The difference patch file contains information about the different program locations of the old and new versions of the firmware. The bspatch algorithm can be used to quickly identify the current version of the firmware and the The specific difference location of the difference patch file only needs to replace the information in the current version of the firmware point-to-point. There is no need to search and replace all, and the new version of the firmware can be merged.

bspatch is a tool used for merging. For example, file A and file B generate the difference file C. When a program needs to be upgraded, the known conditions are backup file B and difference file C. Then the information of difference file C is parsed through bspatch, and then merged with backup file B to generate a new file. In principle, this new file is It should be file A.

In step S203, the new MD5 value of the new version of the firmware is compared with the MD5 value of the firmware to be upgraded based on the MD5 algorithm. If they are completely consistent, the new version of the firmware is downloaded.

In the embodiment of the present invention, the MD5 algorithm is a message digest algorithm. Its English name is MD5 Message-DigestAlgorithm. It is a widely used cryptographic hash function that can generate a 128-bit (16-byte) hash. Value (hash value), used to compare the new MD5 value of the new version of the firmware with the MD5 value of the firmware to be upgraded to ensure the completeness and consistency of the information of the new version of the firmware.

When the new MD5 value of the new version of the firmware is not completely consistent with the MD5 value of the firmware to be upgraded, return to step S1 to re-download, check, merge and compare the MD5 values. If it fails three times, it is not difficult to terminate the upgrade. ask.

In step S204, run the new version of the firmware, monitor various parameters of the operation of the new version of the firmware and compare whether the new version information is completely consistent with the version information of the firmware to be upgraded. If they are completely consistent, it will prompt that the upgrade is completed and save it at the same time. The new version of the firmware serves as a backup file.

In the embodiment of the present invention, during the first operation of the downloaded new version of firmware, it is necessary to monitor the operation of various functions and data parameters of performance indicators. If it runs normally, the final upgrade is completed. If there are any abnormalities in the parameters of the new version of the firmware, and the comparison of the new version information and the version information of the firmware to be upgraded is not completely consistent, it will prompt that the upgrade failed, generate the abnormal information of the new version of the firmware and feed it back to the host computer, and exit the upgrade. Returns the operation of the current version of firmware.

In an embodiment of the present invention, a method for upgrading a power exchange cabinet program is provided, which includes: receiving a firmware update request to be upgraded issued by a host computer, downloading a difference patch file and a compressed package file from the power exchange cabinet; Extract the backed up current version of the firmware from the local storage, use the bspatch algorithm to merge the difference patch file with the current version of the firmware, and generate a new version of the firmware; based on the MD5 algorithm, compare the new MD5 value of the new version of the firmware with the MD5 value of the firmware to be upgraded. Whether it is completely consistent, if it is completely consistent, download the new version of the firmware; run the new version of the firmware, monitor the parameters of the new version of the firmware and compare whether the new version information is completely consistent with the version information of the firmware to be upgraded, If they are completely consistent, it will prompt that the upgrade is completed, and the new version of the firmware will be saved as a backup file. Compared with the existing technology, the present invention has the remarkable effects of occupying less resources, less network download and transmission volume, high upgrade efficiency, and low traffic consumption in updating the program firmware of the power exchange cabinet.

Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be implemented by instructing relevant hardware through computer-readable instructions. The computer-readable instructions can be stored in a computer-readable storage medium. , when executed, the program may include the processes of the above method embodiments. Among them, the aforementioned storage medium can be a non-volatile storage medium such as a magnetic disk, an optical disk, a read-only memory (Read-Only Memory, ROM), or a random access memory (Random Access Memory, RAM).

It should be understood that although various steps in the flowchart of the accompanying drawings are shown in sequence as indicated by arrows, these steps are not necessarily performed in the order indicated by arrows. Unless explicitly stated in this article, the execution of these steps is not strictly limited in order, and they can be executed in other orders. Moreover, at least some of the steps in the flow chart of the accompanying drawings may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily executed at the same time, but may be executed at different times, and their execution order is also It does not necessarily need to be performed sequentially, but may be performed in turn or alternately with other steps or sub-steps of other steps or at least part of the stages.

Referring to Figure 3, as an implementation of the method shown in Figure 2 above, the present invention provides an embodiment of a power exchange cabinet program upgrade device. The device embodiment corresponds to the method embodiment shown in Figure 2. The device is specifically It can be applied to various electronic devices. The power exchange cabinet program upgrade device 200 of this embodiment includes: a difference module 210, a download module 220, a merging module 230, a verification module 240 and a monitoring module 250, wherein:

The difference module 210 is used to obtain the firmware to be upgraded. The host computer runs the bsdiff tool to compare the binary differences between the firmware to be upgraded and the current version of the firmware of the power exchange cabinet to generate a difference patch file;

The download module 220 is used to receive the update request of the firmware to be upgraded issued by the host computer, and the power exchange cabinet downloads the difference patch file and the compressed package file. The compressed package file includes the version information and MD5 value of the firmware to be upgraded;

The merging module 230 is used to extract the backup current version firmware from the local storage of the power exchange cabinet, use the bspatch algorithm to merge the difference patch file with the current version firmware, and generate a new version of firmware, where the new version firmware includes new Version information and new MD5 value;

The verification module 240 is used to compare whether the new MD5 value of the new version of the firmware is completely consistent with the MD5 value of the firmware to be upgraded based on the MD5 algorithm. If they are completely consistent, download the new version of the firmware;

The monitoring module 250 is used to run the new version of the firmware, monitor various parameters of the new version of the firmware and compare whether the new version information is completely consistent with the version information of the firmware to be upgraded. If they are completely consistent, it will prompt that the upgrade is completed. At the same time Save the new version of firmware as a backup file.

In the embodiment of the present invention, the firmware to be upgraded is prepared in advance and stored in the storage module of the host computer. The storage module also stores the current version of the firmware corresponding to the backup of each power swap cabinet, AB0001, AB0002, AB0003, AB0004...AB000n , first prepare the difference patch file in the host computer, and then send it to each power exchange cabinet through HTTP communication protocol for downloading, synthesis, verification and monitoring, and finally realize automatic and efficient program upgrade. Compared with the existing technology, the present invention has the remarkable effects of occupying less resources, less network download and transmission volume, high upgrade efficiency, and low traffic consumption in updating the program firmware of the power exchange cabinet.

In order to solve the above technical problems, embodiments of the present invention also provide computer equipment. Please refer to FIG. 4 specifically, which is a schematic diagram of a preferred embodiment of the computer equipment of the present invention.

The computer device 30 includes a memory 31, a processor 32, and a network interface 33 that are connected to each other through a system bus. It should be noted that only the computer device 30 having components 31 - 33 is shown in the figure, but it should be understood that implementation of all the components shown is not required, and more or less components may be implemented instead. Among them, those skilled in the art can understand that the computer device here is a device that can automatically perform numerical calculations and/or information processing according to preset or stored instructions. Its hardware includes but is not limited to microprocessors, special-purpose Integrated circuits (ApplicationSpecific Integrated Circuit, ASIC), programmable gate array (Field-Programmable GateArray, FPGA), digital processor (Digital Signal Processor, DSP), embedded devices, etc.

The computer device may be a desktop computer, a notebook, a PDA, a cloud server and other computing devices. The computer device can perform human-computer interaction with the user through keyboard, mouse, remote control, touch panel or voice control device.

The memory 31 includes at least one type of readable storage medium, which includes flash memory, hard disk, multimedia card, card-type memory (for example, SD or DX memory, etc.), random access memory (RAM), static memory, etc. Random access memory (SRAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), programmable read-only memory (PROM), magnetic memory, magnetic disks, optical disks, etc. In some embodiments, the memory 31 may be an internal storage unit of the computer device 30 , such as a hard disk or memory of the computer device 30 . In other embodiments, the memory 31 may also be an external storage device of the computer device 30 , such as a plug-in hard disk, a smart media card (SMC), or a secure digital device equipped on the computer device 30 . (Secure Digital, SD) card, Flash Card, etc. Of course, the memory 31 may also include both the internal storage unit of the computer device 30 and its external storage device. In this embodiment, the memory 31 is usually used to store operating systems and various application software installed on the computer device 30 , such as program upgrade readable instructions of the power replacement cabinet program upgrade method, etc. In addition, the memory 31 can also be used to temporarily store various types of data that have been output or will be output.

In some embodiments, the processor 32 may be a central processing unit (CPU), a controller, a microcontroller, a microprocessor, or other data processing chips. The processor 32 is generally used to control the overall operation of the computer device 30 . In this embodiment, the processor 32 is configured to run the program upgrade readable instructions stored in the memory 31 or process data, for example, run the program upgrade readable instructions of the power exchange cabinet program upgrade method.

The network interface 33 may include a wireless network interface or a wired network interface. The network interface 33 is generally used to establish a communication connection between the computer device 30 and other electronic devices.

The computer equipment provided by the application has the remarkable effects of occupying less resources, less network download and transmission volume, high upgrade efficiency, and low traffic consumption.

The present invention also provides another implementation manner, that is, a computer-readable storage medium is provided. The computer-readable storage medium stores program upgrade readable instructions, and the program upgrade readable instructions can be executed by at least one processor. , so that the at least one processor executes the steps of the above-mentioned power replacement cabinet program upgrade method.

Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus the necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is better. implementation. Based on this understanding, the technical solution of the present invention can be embodied in the form of a software product in essence or the part that contributes to the existing technology. The computer software product is stored in a storage medium (such as ROM/RAM, disk, CD), including several instructions to cause a terminal device (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in various embodiments of the present invention.

Obviously, the above-described embodiments are only some of the embodiments of the present invention, rather than all embodiments. The preferred embodiments of the present invention are shown in the drawings, but do not limit the patent scope of the present invention. The invention may be embodied in many different forms; rather, these embodiments are provided in order to provide a thorough understanding of the disclosure of the invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. . Any equivalent structures made using the contents of the description and drawings of the present invention and used directly or indirectly in other related technical fields shall likewise fall within the scope of patent protection of the present invention.

Claims (10)

1. The method for upgrading the program of the power exchange cabinet is characterized by comprising the following steps of:

receiving a firmware update request to be updated issued by an upper computer, and downloading a difference patch file and a compression package file by a battery exchange cabinet, wherein the compression package file comprises version information and MD5 values of the firmware to be updated;

extracting a backup current version firmware from the local storage of the battery-changing cabinet, and combining the difference patch file with the current version firmware by using a bspatich algorithm to generate a new version firmware, wherein the new version firmware comprises new version information and a new MD5 value;

comparing whether a new MD5 value of the new version firmware is completely consistent with the MD5 value of the firmware to be upgraded or not based on an MD5 algorithm, and downloading the new version firmware if the new MD5 value is completely consistent with the MD5 value of the firmware to be upgraded;

and running the new version firmware, monitoring various parameters of the running new version firmware, comparing whether the new version information is completely consistent with the version information of the firmware to be upgraded, prompting the completion of upgrading if the new version information is completely consistent with the version information of the firmware to be upgraded, and simultaneously storing the new version firmware as a backup file.

2. The method for upgrading a power conversion cabinet program according to claim 1, wherein before the step of receiving the firmware update request to be upgraded issued by the host computer, the method further comprises the steps of:

and acquiring the firmware to be upgraded, running a bsdiff tool by the upper computer, performing binary difference comparison on the firmware to be upgraded and the current version firmware of the battery exchange cabinet, and generating a difference patch file.

3. The method for upgrading a battery cabinet program according to claim 2, wherein the step of generating the difference patch file includes:

matching the longest identical character string between the firmware to be upgraded and the current version firmware by using a bsdiff tool;

identifying the same part in each character string to obtain difference character position information of the firmware to be upgraded and the current version firmware, and generating a binary file containing the difference character position information and known character string information;

compressing the binary file to obtain a difference patch file.

4. The method for upgrading a program of a battery cabinet according to claim 2, wherein when the firmware to be upgraded is obtained, firstly, an MD5 algorithm is used to check the MD5 value of the firmware to be upgraded, if the verification is passed, the firmware to be upgraded can be obtained, and if the verification is not passed, the MD5 value verification exception information is generated and fed back to the upper computer.

5. The method for upgrading a program of a power conversion cabinet according to claim 2, wherein the monitoring that the parameters of the new version firmware are abnormal and comparing the new version information with the version information of the firmware to be upgraded is not completely consistent, prompting that the upgrade is failed, generating the abnormal information of the new version firmware to be fed back to the upper computer, and exiting the upgrade to return to the operation of the current version firmware.

6. The utility model provides a trade electric cabinet procedure upgrading device which characterized in that includes:

the downloading module is used for receiving a firmware update request to be upgraded issued by the upper computer, and the power conversion cabinet downloads a difference patch file and a compression package file, wherein the compression package file comprises version information and MD5 values of the firmware to be upgraded;

the merging module is used for extracting the backed-up current version firmware from the local storage of the battery-changing cabinet, merging the difference patch file with the current version firmware by utilizing a bspatich algorithm to generate new version firmware, wherein the new version firmware comprises new version information and a new MD5 value;

the verification module is used for comparing whether the new MD5 value of the new version firmware is completely consistent with the MD5 value of the firmware to be upgraded or not based on the MD5 algorithm, and downloading the new version firmware if the new MD5 value of the new version firmware is completely consistent with the MD5 value of the firmware to be upgraded;

and the monitoring module is used for running the new version firmware, monitoring various parameters of the running of the new version firmware, comparing whether the new version information is completely consistent with the version information of the firmware to be upgraded, prompting the completion of upgrading if the new version information is completely consistent with the version information of the firmware to be upgraded, and simultaneously storing the new version firmware as a backup file.

7. The device for upgrading a power conversion cabinet program according to claim 6, wherein before receiving a firmware update request to be upgraded issued by the host computer, the device further comprises:

the difference module is used for acquiring the firmware to be upgraded, the upper computer runs the bsdiff tool, and the firmware to be upgraded and the current version firmware of the battery-changing cabinet are subjected to binary difference comparison to generate a difference patch file.

8. The battery cabinet program upgrade apparatus of claim 7, wherein the generation of the difference patch file comprises:

matching the longest identical character string between the firmware to be upgraded and the current version firmware by using a bsdiff tool;

identifying the same part in each character string to obtain difference character position information of the firmware to be upgraded and the current version firmware, and generating a binary file containing the difference character position information and known character string information;

compressing the binary file to obtain a difference patch file.

9. A computer device comprising a memory having program upgrade readable instructions stored therein and a processor that when executed implements the steps of the battery cabinet program upgrade method of any one of claims 1 to 5.

10. A computer readable storage medium, wherein program upgrade readable instructions are stored on the computer readable storage medium, which when executed by a processor, implement the steps of the battery cabinet program upgrade method of any one of claims 1 to 5.