CN101079732A - Remote upgrade method of built-in system software based on FTP protocol - Google Patents
Remote upgrade method of built-in system software based on FTP protocol Download PDFInfo
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Abstract
The invention discloses a wireless remote updating method based on the embedded system software of FTP protocol, which comprises the following parts: management center of equipment terminal, FTP file server and embedded terminal, wherein the communication among the embedded terminal, management center of equipment terminal and FTP server is based on GPRS or CDMA1 wireless IP pattern, which supports multi-embedded terminals to update FTP remotely. The invention solves the defect of present updating pattern without defining complex wireless updating interactive protocol, which is an automatic remote updating method for software equipment.
Description
Technical field
The present invention relates to public network wireless communication field, the IP communications field and embedded system field, be based on File Transfer Protocol carries out the software wireless remote upgrade to embedded system method.
Background technology
Current many equipment monitoring systems have all adopted the pattern of unified monitoring management, show as device end administrative center the running status and the pattern of each device end are carried out wireless remote supervision and control.Normal conditions, terminal system need be upgraded the software of self according to the needs of using, and this makes that under the occasion of all kinds of unattended duties it is very difficult that the software upgrading of device end becomes.And having a system of software wireless remote upgrade function, energy is long-range carry out upgrading processing to equipment to on-the-spot just for the Maintenance free personnel, can reduce the maintenance cost of system greatly.Therefore at present more and more widely to the functional requirement of terminal software remote upgrade.
The realization of system remote auto-update function need rely on the support of data wireless transmission link and terminal equipment.With regard to wireless transmission, using wider transmission method has mobile GPRS and the CDMA1X of UNICOM etc.Along with the development of embedded system technology, equipment end is also progressively begun to the embedded OS transition with IP network function by traditional Single Chip Microcomputer (SCM) system the support of software remote upgrade.
At present, terminal realizes that the scheme of remote software upgrade is a lot, and to be device end administrative center download to the upgrade file bag of appointment on the terminal equipment main path.In the whole flow process of terminal software upgrading, need carry out strictness control to upgrading flow process, unusual condition, breakpoint information etc., and possess corresponding error handling processing and fault recovery function.The scheme of this employing one cover custom protocol, implementation procedure complexity not only, the upgrading inefficiency, and be unfavorable for that device end administrative center supports the remote software upgrade of a plurality of terminals simultaneously, exist system to realize shortcomings such as difficulty is big, and the software upgrade success rate is low.
Summary of the invention
The present invention is in order to overcome the shortcoming that above-mentioned prior art exists, and proposes a kind ofly based on GPRS or CDMA1X wireless transmission, adopts ftp file transfer protocol, realization embedded system wireless remote software upgrade method.This method implementation procedure is simple, does not need the interaction protocol of self-defined complexity, can realize the software remote upgrade fast and accurately.Device end administrative center can support the wireless remote software upgrading of a plurality of terminals simultaneously.
The wireless remote upgrading need be cooperated by three parts to be finished: device end administrative center, ftp file server and embedded device terminal.
Communicating by letter between embedded device terminal and device end administrative center, the ftp server is based on that GPRS or the wireless IP mode of CDMA1X realize.During the routine work of embedded device terminal, at first sign in to device end administrative center, management information is sent to device end administrative center by GPRS or cdma wireless IP mode, and by periodically sending data keeps the unimpeded of wireless IP link.
Embedded system automated wireless remote upgrade method based on File Transfer Protocol, specifically realize according to the following steps: (1) is applied to ftp file transfer protocol in the systems soft ware of built-in terminal, the system software controls built-in terminal day-to-day operation and the software upgrading of built-in terminal; (2) device end administrative center at first notified built-in terminal that communication mode is switched to the wireless IP data communications mode that remote upgrade needs: GPRS or CDMA1X before sending upgrade command; If built-in terminal has been the required communication mode of upgrading then has not needed to switch that device end administrative center sends the instruction of " starting the software remote upgrade " to built-in terminal with this communication mode then; (3) after built-in terminal is received instruction, resolve this command frame, obtain user name, password, remote upgrade filename and the file path information of ftp server IP address, port, updating operation, built-in terminal is connected to ftp server according to these information active wireless IP mode then, from the path download and upgrade file of appointment; In the file download process, the percentage progress that built-in terminal can initiatively be downloaded to device end administrative center reporting file; After the upgrade file bag process that downloads to built-in terminal is checked, the verification affirmation is correct, write in the memory of non-volatile type, and current operating software is backed up; (4) built-in terminal restarts after finishing the software remote update, to enable newly downloaded software, after built-in terminal restarts for the first time, initiatively sends the message of software upgrade success to device end administrative center.
In FTP mode escalation process, ftp server login failure, ftp server connection failure and/or ftp server file may occur and download abnormal conditions such as overtime, at this moment, built-in terminal can initiatively report upgrading unusual reason and current software version information to device end administrative center, preserve the file data that has received simultaneously, when upgrading once more, device end administrative center may command built-in terminal is upgraded fully again or is begun upgrading from the file interruptions.
This method is supported the concurrent FTP remote upgrade of a plurality of terminals.
This method is utilized the IP network function of embedded system, adopts ftp file transfer protocol, utilizes the wireless IP data transfer mode of GPRS or CDMA 1X that system is carried out the upgrading of software automatic remote, also supports the concurrent remote upgrade of a plurality of terminals simultaneously.Solved the shortcoming of existing upgrading scheme better.
Description of drawings
Fig. 1 is an embedded system upgrade method schematic diagram of the present invention.
Fig. 2 is wireless remote upgrading interaction diagrams of the present invention.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
Fig. 1 has illustrated the system architecture that whole FTP wireless remote upgrade method relates to.Couple together by network between device end administrative center and ftp server, and device end administrative center, ftp server are all by carrying out long-range the connection in the wireless IP mode of GPRS with built-in terminal behind the public IP network.It is mutual that device end administrative center and built-in terminal carry out upgrade information, realizes the control and the state of remote upgrade are shown; It is mutual that ftp server and built-in terminal carry out file data, realizes that the wireless IP of upgrade file downloads.This method adopts File Transfer Protocol, supports the concurrent remote upgrade of a plurality of built-in terminals.
Fig. 2 has illustrated the concrete interaction flow of device end administrative center, built-in terminal and ftp server in the remote upgrade procedure of the present invention.At first the built-in terminal situation is inquired about by device end administrative center, if built-in terminal is supported the remote upgrade of FTP mode, then send the instruction that communication mode switches, communication mode is switched to GPRS or the wireless IP communication mode of CDMA1X that the built-in terminal remote upgrade is supported.Switch back device end administrative center and send the instruction that starts the software remote upgrade to built-in terminal, comprise information such as ftp server IP address, port, user name, password, filename and file path in the instruction with this communication mode.After built-in terminal is received instruction, resolve command frame, obtain the ftp server relevant information.According to these information, built-in terminal adopts wireless IP mode to download built-in terminal upgrade file bag from ftp server.In the downloading process, built-in terminal can be to device end administrative center timing reporting file download progress.After built-in terminal is finished the upgrade file download, report " software upgrading success " to device end administrative center at once.Subsequently, built-in terminal is checked and verification the file bag that downloads to.If verification correctly then writes upgrade file in the memory of non-volatile type.After file write and finishes, built-in terminal was restarted automatically.After restarting, built-in terminal initiatively sends upgrading successful message and current software version information to device end administrative center, and so far, whole auto-update process finishes.
At the upgrading failure that abnormal conditions cause, built-in terminal can initiatively report the reason and the current software version information of upgrading failure to device end administrative center, and keeps the file data that success receives.When upgrading once more, built-in terminal is according to the order of device end administrative center, and FTP download and upgrade file covers original upgrade file fully again; Also can no longer download the file data that has received, and begin to download from upgrade file FTP breakpoint.
Claims (2)
1, based on the built-in system software wireless remote upgrade method of File Transfer Protocol, the system architecture that relates to comprises: device end administrative center, ftp file server and built-in terminal, communicating by letter between built-in terminal and device end administrative center, the ftp server is based on that GPRS or the wireless IP mode of CDMA1 realize, specifically carry out according to the following steps: (1) is applied to ftp file transfer protocol in the systems soft ware of built-in terminal, the system software controls built-in terminal day-to-day operation and the software upgrading of built-in terminal; (2) device end administrative center at first notified built-in terminal that communication mode is switched to the wireless IP data communications mode that remote upgrade needs: GPRS or CDMA1X before sending upgrade command; If built-in terminal has been the required communication mode of upgrading then has not needed to switch that device end administrative center sends the instruction of " starting the software remote upgrade " to built-in terminal with this communication mode then; (3) after built-in terminal is received instruction, resolve this command frame, obtain user name, password, remote upgrade filename and the file path information of ftp server IP address, port, updating operation, built-in terminal is connected to ftp server according to these information active wireless IP mode then, from the path download and upgrade file of appointment; In the file download process, the percentage progress that built-in terminal can initiatively be downloaded to device end administrative center reporting file; After the upgrade file bag process that downloads to built-in terminal is checked, the verification affirmation is correct, write in the memory of non-volatile type, and current operating software is backed up; (4) built-in terminal restarts after finishing the software remote update, to enable newly downloaded software, after built-in terminal restarts for the first time, initiatively sends the message of software upgrade success to device end administrative center.
2, embedded system automatic remote upgrade method based on File Transfer Protocol according to claim 1, it is characterized in that: in FTP mode escalation process, the ftp server login failure may appear, ftp server connection failure and/or ftp server file are downloaded overtime abnormal conditions, at this moment, built-in terminal can initiatively report upgrading unusual reason and current software version information to device end administrative center, preserve the file data that has received simultaneously, when upgrading once more, device end administrative center may command built-in terminal is upgraded fully again or is begun upgrading from the file interruptions.
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| CNA2007100522143A CN101079732A (en) | 2007-05-21 | 2007-05-21 | Remote upgrade method of built-in system software based on FTP protocol |
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| CN101854393A (en) * | 2010-05-28 | 2010-10-06 | 积成电子股份有限公司 | Method for updating embedded system software |
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| CN111741087A (en) * | 2020-06-09 | 2020-10-02 | 科华恒盛股份有限公司 | Remote upgrading method, terminal equipment and readable storage medium |
| CN112309556A (en) * | 2020-11-12 | 2021-02-02 | 安图实验仪器(郑州)有限公司 | Centralized management and control method for medical laboratory |
| CN113204366A (en) * | 2021-06-02 | 2021-08-03 | 上海酒贝乐信息技术有限公司 | Remote upgrading method for intelligent wine selling machine system |
| CN113900697A (en) * | 2021-12-09 | 2022-01-07 | 航天恒星科技有限公司 | Remote upgrading function implementation method and system based on MCU and TFTP protocol |
| CN113900697B (en) * | 2021-12-09 | 2024-01-23 | 航天恒星科技有限公司 | Remote upgrading function implementation method and system based on MCU and TFTP protocol |
| CN114338649A (en) * | 2021-12-21 | 2022-04-12 | 青岛鼎信通讯股份有限公司 | FTP protocol-based embedded device remote upgrading method with security authentication |
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