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Method for transmitting embedded system document based on telnet protocol

An embedded system and remote login technology, applied in the transmission system, digital transmission system, electrical components, etc., can solve the problems of high resource overhead and unfavorable embedded system maintenance, and achieve the effect of file transmission

Inactive Publication Date: 2009-04-22
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the setting of the network port is convenient for the maintenance of the embedded system, the resource overhead of information interaction with the host is relatively large, which is not conducive to the maintenance of the embedded system with limited processing capacity.
Once the network port is damaged, the network is congested or the network fails, it will have to be maintained according to the embedded system without the network port

Method used

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  • Method for transmitting embedded system document based on telnet protocol

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Embodiment Construction

[0019] The core idea of ​​the invention is: the embedded system is widely used in the communication network, and its maintenance is an important link in the network maintenance. Not all current embedded systems support remote maintenance, especially those without network ports. Embedded systems that do not support remote maintenance must be sent back to the factory for maintenance with special equipment, which undoubtedly increases the maintenance cost of embedded systems . Aiming at this situation, the present invention uses the Telnet protocol to realize information interaction with the embedded system, thereby completing the reading and writing of files in the embedded system, thereby realizing fault detection and file maintenance of the embedded system. The invention does not require the embedded system to be specially configured with a network port, and the file writing and reading of the embedded system can also be realized through the serial port. The invention is simp...

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PUM

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Abstract

The invention discloses an embedded system file transmission method based on a telnet protocol, relating to the file transmission technique of embedded systems and aiming at solving the inconvenient maintenance of the existing embedded system. In order to solve the problem, the proposal comprises the steps as follows: A. a local host machine sends file reading / writing instructions to the embedded system by the Telnet protocol; B. after the file reading / writing instruction is received, the embedded system distributes the cache area for the file; C. the caches are cut for the file to be read or written according to the size of the distributed cache area; furthermore, the cached file data is printed to the local host machine or written into the embedded system. The method is simple and practical and the embedded system can still realize the file transmission when supporting the serial port only.

Description

technical field [0001] The invention relates to the file transmission technology of an embedded system, in particular to an embedded system file transmission method based on a remote login (Telnet) protocol. Background technique [0002] Embedded systems usually use a simple and easy-to-use serial port for software debugging and development, but when an embedded system is faulty or its software is updated, the device can only be sent back to the factory, and a dedicated Flash reading device is used to read the Flash in the device. Install the file system, analyze the cause of the failure, or write the update program through the dedicated Flash writing device. In this way, the separate maintenance cost of the embedded system will be quite high. As for the embedded system-based network system, the cost of independent maintenance will become an important cost factor for operators. [0003] In view of the above problems, the embedded system generally also has a network port fo...

Claims

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Application Information

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IPC IPC(8): H04L29/08H04L12/56H04L12/24
Inventor 官毅
Owner ZTE CORP
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