CN117938869A - Compression packet upgrading method and system for network file transmission breakpoint continuous transmission - Google Patents

Abstract

The invention provides a compression packet upgrading method and a system for network file transmission breakpoint continuous transmission, wherein the method comprises the steps of obtaining an upgrading packet, and compressing the upgrading packet into an upgrading compression packet on a linux virtual machine, wherein the upgrading packet comprises a program to be upgraded and various files or folders; configuring software communication parameters of a client, and defining a communication protocol between the client and a server; importing the upgrade compression package into a client, and transmitting the upgrade compression package to a server through a network upgrade strategy based on a self-defined communication protocol; decompressing the upgrade compression package, running an upgrade script file of the upgrade compression package, and finishing the upgrade task of the server side. The invention can realize the upgrade of the compression packet of the wireless network file transmission breakpoint continuous transmission and support the breakpoint continuous transmission, so that the embedded system server can continuously transmit upgrade data after the abnormality occurs in the upgrade process, thereby effectively saving the upgrade time and reducing the maintenance cost.

Description

Compression packet upgrading method and system for network file transmission breakpoint continuous transmission

Technical Field

The invention relates to the technical field of software upgrading, in particular to a compressed packet upgrading method for network file transmission breakpoint continuous transmission and a system applying the method.

Background

Currently, in the existing distribution network automation power system, a distribution network main station is usually used for carrying out remote upgrade by using 101 and 104 protocols to communicate with a distribution network management machine and a protection terminal; because the development level of the areas is different, wired optical fiber transmission is used in some places, wireless 4G transmission is used in some places, only one file can be sent for each upgrading, the speed of sending the file is very slow, and a part of area master stations can send 200 bytes of data every 3 seconds, once the line is broken and the upgrading data is required to be retransmitted, the upgrading efficiency is extremely low for the field of wireless access protection terminal equipment, and once the data is sent incompletely or damaged, the upgrading failure of a distribution network protection terminal can be caused, the current running program is damaged, the protection terminal cannot run after upgrading and resetting, and the safety of a power grid is greatly influenced.

Disclosure of Invention

Compared with the existing upgrading scheme, the method and the system can improve the problems encountered above and realize the upgrading of the compressed package of the continuous transmission of the wireless network file transmission breakpoint.

In order to solve the problems, the technical scheme adopted by the invention is as follows:

the method comprises the steps of obtaining an upgrade package, and compressing the upgrade package into an upgrade compression package on a linux virtual machine, wherein the upgrade package comprises a program to be upgraded and various files or folders; configuring software communication parameters of a client, and defining a communication protocol between the client and a server; importing the upgrade compression package into a client, and transmitting the upgrade compression package to a server through a network upgrade strategy based on a self-defined communication protocol; decompressing the upgrade compression package, running an upgrade script file of the upgrade compression package, and finishing the upgrade task of the server side.

According to the compression packet upgrading method for network file transmission breakpoint continuous transmission, the upgrading compression packet is in a tar.gz compression packet format of LINUX, or specifically is a compression packet conforming to the compatibility of a server side of a Linux-based embedded system.

According to the method for upgrading the compression packet of the network file transmission breakpoint continuous transmission provided by the invention, the software communication parameters comprise: IP and port of server, disconnection delay time, reconnection times and disconnection reconnection delay time; the communication protocol between the client and the server comprises: upgrade activation message with file check code, upgrade activation confirmation message, upgrade data packet message, upgrade breakpoint continuous transmission activation message, breakpoint continuous transmission activation confirmation message and upgrade ending message with check code.

According to the compression packet upgrading method for network file transmission breakpoint continuous transmission provided by the invention, the network upgrading strategy comprises the following steps: importing an upgrade compression packet into a client, splitting the upgrade compression packet into a plurality of data packets, and transmitting the data packets to a server one by one; and judging whether the MD5 value of the content of the upgrade compressed package file extracted from the client is consistent with the MD5 value of the content of the upgrade compressed package file extracted from the server, if so, completing network transmission, and if not, failing to perform network transmission.

According to the method for upgrading the compression packet of the network file transmission breakpoint continuous transmission, provided by the invention, the method is further implemented: in the upgrading process, when no message reply is encountered at the server side and the time exceeds the disconnection delay time, the original connection is disconnected at the client side, and the connection is reestablished; and judging whether the network breakpoint is continuously transmitted or not by the client, if so, continuing to transmit the upgrade compressed package data, and if not, transmitting the upgrade compressed package data again.

According to the compression packet upgrading method for network file transmission breakpoint continuous transmission, when upgrading compression packet decompression is executed, whether compression packet decompression is successful or not is judged, if yes, a client is informed of successful transmission of the upgrading compression packet, and then a custom upgrading script is executed and a software system is restarted; if not, deleting the upgrade compression package and all the decompressed files thereof, notifying the client that the transmission of the upgrade compression package fails, and re-issuing the upgrade compression package by the client.

According to the compression packet upgrading method for network file transmission breakpoint continuous transmission, each upgrading compression packet file corresponds to a unique MD5 value mark, and the MD5 value of the content of the upgrading compression packet file uploaded by the client is calculated to obtain the MD5 value of the current upgrading compression packet; and matching the MD5 value of the current upgrading compression packet with the MD5 value of the file content of the upgrading compression packet extracted from the server, and if the MD5 value is consistent with the MD5 value, checking to prove that the network upgrading is completed and correct.

According to the compressed packet upgrading method for the network file transmission breakpoint continuous transmission, after connection is reestablished, the client judges whether to issue a breakpoint continuous transmission activation message according to the cache, and if not, the client upgrades again; if yes, sending a breakpoint continuous transmission activation message, after receiving the activation message, replying a breakpoint continuous transmission confirmation message with the last data packet offset address, and organizing the next N byte data packets as the first data packet to be sent again by the server according to the received offset address, so as to avoid repeated transmission of the same data packet; wherein, each upgrade compressed package has a corresponding offset address.

According to the method for upgrading the compression packet of the network file transmission breakpoint continuous transmission, the server side judges whether the total data volume of the next upgrading task exceeds the capacity of the cache according to the received data volume, organizes new files according to the received data, deletes corresponding data in the cache and prepares a cache space for receiving the data of the next upgrading task.

A compressed package upgrade system for network file transfer breakpoint resume, comprising:

The system comprises a client and a server, wherein the client is a client running in a Windows system, provides graphical interaction control function for operators, and completes data interaction and complete software upgrading flow with the server; the server side is a hardware platform compatible with various embedded wireless networks based on the linux system operation, is responsible for data interaction with client software, and completes software upgrading and checking functions of the server side.

Therefore, compared with the prior art, the method and the device have the advantages that the software upgrading client is connected to the embedded system server through the wireless network, the quantity and the types of the upgrading files are programmable, the upgrading is carried out under the condition that a main program is not required to be changed, a plurality of software and files required by the embedded system can be carried in one upgrading transmission process, the upgrading is not required to be carried out one by the multi-CPU embedded system, the breakpoint continuous transmission is supported, the embedded system server can continuously transmit upgrading data after the embedded system server is suddenly disconnected, powered off and reconnected in the upgrading process, the upgrading time is effectively saved, and the maintenance cost is reduced.

The invention is described in further detail below with reference to the drawings and the detailed description.

Drawings

Fig. 1 is a flowchart of an embodiment of a method for upgrading a compression packet of a network file transfer breakpoint continuous transmission according to the present invention.

Fig. 2 is a schematic flow chart of a method for upgrading a compression packet related to a custom network upgrade policy in an embodiment of a method for upgrading a compression packet transmitted by a network file transmission breakpoint in the present invention.

Fig. 3 is a flowchart of a method for upgrading a compression packet related to a custom upgrade script in an embodiment of a network file transfer breakpoint continuous transmission method of the present invention.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Compression packet upgrading method embodiment for network file transmission breakpoint continuous transmission

Referring to fig. 1 to 3, the invention provides a compressed packet upgrading method for network file transmission breakpoint continuous transmission, which comprises the following steps:

Step S1, acquiring an upgrade package, and compressing the upgrade package into an upgrade compressed package on a linux virtual machine, wherein the upgrade package comprises a program to be upgraded and various files or folders;

Step S2, configuring software communication parameters of the client, and defining a communication protocol between the client and the server;

Step S3, the upgrade compression package is imported into the client, and the upgrade compression package is transmitted to the server through a network upgrade strategy based on a self-defined communication protocol;

And S4, decompressing the upgrade compression package, running an upgrade script file of the upgrade compression package, and finishing the upgrade task of the server side.

In the step S1, the program to be upgraded and various files or folders are packaged together into an upgrade package, and compressed into an upgrade compression package on the linux virtual machine. The upgrade compression package is in a tar.gz compression package format of LINUX, but is not limited to the compression package format, and the upgrade compression package can be specifically based on the compatibility of the server side of the embedded system based on the LINUX.

In a specific implementation, the packing upgrade compression package is specifically: on a linux virtual machine, all files and folders to be upgraded are copied to a directory, then a linux compression command is input and compressed into an upgrade compression packet, and an embedded system device server is required to support decompression of the compression packet, otherwise, the embedded system device server cannot upgrade programs and files on which the upgrade depends.

In the step S2, the software communication parameters include: IP and port of server, disconnection delay time, reconnection times and disconnection reconnection delay time.

In the specific implementation, the client and the server need the same network segment IP, the client is provided with a server port, the server monitors the port set by the client, the TCP/IP protocol is used as the standard, the client issues handshake connection according to the IP and the port of the server, and the server monitors according to the local IP and the port; the wire breakage delay time is as follows: the method comprises the steps that the client and the server need disconnection delay time to judge whether a network is disconnected, when the client exceeds the disconnection delay time and does not receive a message of the server, the disconnection is judged, handshake with the server is carried out again, and when the server exceeds the disconnection delay time and does not receive the message of the client, the connection is disconnected and the connection of the client is waited again; the disconnection reconnection time is as follows: delay time waiting after disconnection; and the number of reconnection times of the client is used for automatically reconnecting the client, and after the number of reconnection times is exceeded, the client is manually reconnected.

In the step S2, the communication protocol between the client and the server includes: upgrade activation message with file check code, upgrade activation confirmation message, upgrade data packet message, upgrade breakpoint continuous transmission activation message, breakpoint continuous transmission activation confirmation message, upgrade ending message with check code, heartbeat message and confirmation frame message. When the client side does not receive the server message for more than 15 seconds, actively transmitting the heartbeat message, and when the server side does not receive the client side for 15 seconds, actively transmitting the heartbeat message so as to keep the client side and the server side connected; the client sends an upgrade message, and the server needs to reply a confirmation frame message to keep the connection between the client and the server.

In the step S3, the upgrade compression packet is imported into the client, and the upgrade compression packet is transmitted to the server through the custom network upgrade policy according to the custom protocol, where the custom network upgrade policy includes:

Importing an upgrade compression packet into a client, splitting the upgrade compression packet into a plurality of data packets, and transmitting the data packets to a server one by one;

And judging whether the MD5 value of the content of the upgrade compressed package file extracted from the client is consistent with the MD5 value of the content of the upgrade compressed package file extracted from the server, if so, completing network transmission, and if not, failing to perform network transmission.

In this embodiment, each upgrade compressed package file corresponds to a unique MD5 value tag, and the MD5 value of the content of the upgrade compressed package file uploaded by the client is calculated to obtain the MD5 value of the current upgrade compressed package; and matching the MD5 value of the current upgrading compression packet with the MD5 value of the file content of the upgrading compression packet extracted from the server, and if the MD5 value is consistent with the MD5 value, checking to prove that the network upgrading is completed and correct.

In specific implementation, as shown in fig. 2, the custom network upgrade policy includes:

step S101, a client and a server establish network connection;

Step S102, a client extracts an MD5 value of the file content of the upgrade compressed package, inputs the MD5 value into an upgrade activation message, and sends the upgrade activation message to a server;

Step S103, the server side obtains the MD5 value of the client side and caches the MD5 value, and replies an upgrade activation confirmation message;

Step S104, after obtaining the upgrade activation confirmation message of the server, the client splits the upgrade compression package file, encapsulates the upgrade compression package file into data packages and sends the data packages to the server one by one;

Step S105, in the process of issuing the network data packet, judging whether the message reply time of the server side exceeds the disconnection delay time, if not, executing step S107, if yes, disconnecting the original connection execution waiting connection delay time of the client side, then, issuing the handshake connection again, judging whether the connection number of times of the handshake connection is exceeded again, if yes, waiting for the manual clicking to successfully execute step S106, and if not, executing step S106 after connection success;

step S106, after the client is reconnected successfully, the client issues a breakpoint resume activation message, the server replies a breakpoint resume confirmation message, the breakpoint resume confirmation message comprises a cached MD5 check code and an offset address of the received file content, the client receives the breakpoint resume confirmation message to judge whether the breakpoint resume is performed, if yes, the client continues to send upgrade compressed package data according to the offset address of the breakpoint resume file, if no, a denial frame is resent, and the client returns to execute the step S102;

step S107, after receiving the last frame of data packet, the server end combines all the data packets into an upgrade compressed packet, extracts the MD5 value of the upgrade compressed packet file, sends an upgrade end message with a check code to the client end, judges whether the MD5 value of the server end is consistent with the MD5 value of the client end, if so, executes the step S4 of upgrade, if not, discards the upgrade compressed packet, and fails to upgrade;

Step S108, the client obtains MD5, compares whether the MD5 value of the client is consistent with the MD5 value of the server, if so, prompts the completion of transmission, if not, prompts the failure of upgrading, and the client manually operates again to send an upgrade compression package.

In the present embodiment, it is also performed that:

In the upgrading process, when no message reply is encountered at the server side and the time exceeds the disconnection delay time, the original connection is disconnected at the client side, and the connection is reestablished;

And judging whether the network breakpoint is continuously transmitted or not by the client, if so, continuing to transmit the upgrade compressed package data, and if not, transmitting the upgrade compressed package data again.

In the step S4, when the upgrade compressed package decompression is executed, judging whether the compressed package decompression is successful, if so, notifying the client that the upgrade compressed package transmission is successful, and then executing the custom upgrade script and restarting the software system; if not, deleting the upgrade compression package and all the decompressed files thereof, notifying the client that the transmission of the upgrade compression package fails, and re-issuing the upgrade compression package by the client.

In the step S4, the upgrade compressed package is imported into the client, and the file compressed package is transmitted to the server by using a wireless network breakpoint continuous transmission manner according to a custom protocol.

In specific implementation, as shown in fig. 3, the custom script is a LINUX system SHELL script, and the content is the following steps:

Step S201, the upgrade compressed package includes filename and 5.Txt, content: and (3) calculating MD5 values of the files in the upgrade compression package according to the file list of the filename and 5.Txt, comparing the MD5 values of the files in the upgrade compression package with the MD5 values of the content of the filename and 5.Txt, judging whether the files are all consistent or not, if yes, executing S202, if not, updating the files to be damaged, generating a failure log, and notifying the client of the damage of the upgrade files if the server detects the failure log.

Step S202, judging whether the main program of the server side exists in an upgrade compression package, if so, deleting the old main program, then moving the main program in the upgrade compression package to a running path where the main program exists, and if not, executing the next step;

Step S203, judging whether the parameter configuration file at the server end exists in an upgrade package, if so, deleting the old parameter configuration file, then moving the parameter configuration file in the upgrade package to a running path where the parameter configuration file exists, and if not, executing the next step;

Step S204, judging whether other configuration files at the server end exist in an upgrade package, if yes, deleting the old other configuration files, then moving the other configuration files in the upgrade package to a running path where each configuration is located, and if no, completing the step of upgrading the script.

In this embodiment, after reestablishing the connection, the client determines, according to the cache, whether to issue the breakpoint continuous transmission activation message, and if not, upgrades again; if yes, sending a breakpoint continuous transmission activation message, and after receiving the activation message, replying a breakpoint continuous transmission confirmation message with the last data packet offset address, and organizing the next N byte data packets as the first data packet to be sent again by the server according to the received offset address, so as to avoid repeated transmission of the same data packet; wherein, each upgrade compressed package has a corresponding offset address.

In this embodiment, the server side organizes a new file according to the received data, and deletes the corresponding data in the cache to prepare a cache space for receiving data of the next upgrade task if it is determined that the total data size of the next upgrade task exceeds the capacity of the cache.

Compression packet upgrading system embodiment for network file transmission breakpoint continuous transmission

A compressed package upgrade system for network file transfer breakpoint resume, comprising:

The system comprises a client and a server, wherein the client is a client running in a Windows system, provides graphical interaction control functions for operators, and completes data interaction and complete software upgrading flow with the server; the server side is a hardware platform which is compatible with various embedded wireless networks based on the linux system operation, is responsible for data interaction with client software, and completes software upgrading and checking functions of the server side.

In summary, the invention can connect the software upgrading client to the embedded system server through the wireless network, the quantity and the type of the upgrading files are programmable, the upgrading is carried out under the condition of not changing the main program, the software and the files needed by a plurality of embedded systems can be carried in one upgrading transmission process, the upgrading is not needed to be transmitted one by the multi-CPU embedded system, and the breakpoint continuous transmission is supported, so that the embedded system server can continuously transmit the upgrading data after the sudden disconnection, the outage and the reconnection in the upgrading process, the upgrading time is effectively saved, and the maintenance cost is reduced.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present invention are intended to be within the scope of the present invention as claimed.

Claims (10)

1. The method for upgrading the compressed package of the network file transmission breakpoint continuous transmission is characterized by comprising the following steps of:

acquiring an upgrade package, and compressing the upgrade package into an upgrade compression package on a linux virtual machine, wherein the upgrade package comprises a program to be upgraded and various files or folders;

Configuring software communication parameters of a client, and defining a communication protocol between the client and a server;

Importing the upgrade compression package into a client, and transmitting the upgrade compression package to a server through a network upgrade strategy based on a self-defined communication protocol;

decompressing the upgrade compression package, running an upgrade script file of the upgrade compression package, and finishing the upgrade task of the server side.

2. The method according to claim 1, characterized in that:

the upgrade compression package is in a tar.gz compression package format of LINUX, or specifically is a compression package which accords with the compatibility of a server side of a Linux-based embedded system.

3. The method according to claim 1, characterized in that:

the software communication parameters include: IP and port of server, disconnection delay time, reconnection times and disconnection reconnection delay time;

the communication protocol between the client and the server comprises: upgrade activation message with file check code, upgrade activation confirmation message, upgrade data packet message, upgrade breakpoint continuous transmission activation message, breakpoint continuous transmission activation confirmation message and upgrade ending message with check code.

4. The method according to claim 1, characterized in that:

The network upgrade policy includes:

Importing an upgrade compression packet into a client, splitting the upgrade compression packet into a plurality of data packets, and transmitting the data packets to a server one by one;

And judging whether the MD5 value of the content of the upgrade compressed package file extracted from the client is consistent with the MD5 value of the content of the upgrade compressed package file extracted from the server, if so, completing network transmission, and if not, failing to perform network transmission.

5. The method of claim 1, further performing:

In the upgrading process, when no message reply is encountered at the server side and the time exceeds the disconnection delay time, the original connection is disconnected at the client side, and the connection is reestablished;

And judging whether the network breakpoint is continuously transmitted or not by the client, if so, continuing to transmit the upgrade compressed package data, and if not, transmitting the upgrade compressed package data again.

6. The method according to claim 1, characterized in that:

Judging whether the decompression of the upgrade compression package is successful or not when the decompression of the upgrade compression package is executed, if so, informing a client that the transmission of the upgrade compression package is successful, and then executing a custom upgrade script and restarting the software system; if not, deleting the upgrade compression package and all the decompressed files thereof, notifying the client that the transmission of the upgrade compression package fails, and re-issuing the upgrade compression package by the client.

7. The method according to claim 4, wherein:

Each upgrade compression package file corresponds to a unique MD5 value mark, and the MD5 value of the content of the upgrade compression package file uploaded by the client is calculated to obtain the MD5 value of the current upgrade compression package; and matching the MD5 value of the current upgrading compression packet with the MD5 value of the file content of the upgrading compression packet extracted from the server, and if the MD5 value is consistent with the MD5 value, checking to prove that the network upgrading is completed and correct.

8. The method according to claim 5, wherein:

After reestablishing the connection, the client judges whether to issue a breakpoint continuous transmission activation message according to the cache, if not, the client is upgraded again; if yes, sending a breakpoint continuous transmission activation message, after receiving the activation message, replying a breakpoint continuous transmission confirmation message with the last data packet offset address, and organizing the next N byte data packets as the first data packet to be sent again by the server according to the received offset address, so as to avoid repeated transmission of the same data packet; wherein, each upgrade compressed package has a corresponding offset address.

9. The method according to any one of claims 1 to 8, wherein:

And the server end organizes a new file according to the received data and deletes corresponding data in the cache according to the received data if the total data volume of the next upgrading task exceeds the capacity of the cache, and prepares a cache space for receiving the data of the next upgrading task.

10. The utility model provides a compression package upgrading system of network file transmission breakpoint continuous transmission which characterized in that includes:

The system comprises a client and a server, wherein the client is a client running in a Windows system, provides graphical interaction control function for operators, and completes data interaction and complete software upgrading flow with the server; the server side is a hardware platform compatible with various embedded wireless networks based on the linux system operation, is responsible for data interaction with client software, and completes software upgrading and checking functions of the server side.