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Computer interlocking system communication method based on coding

A computer interlocking and system communication technology, applied in computing, transmission systems, digital transmission systems, etc., can solve problems such as communication message matching errors, random communication failures, memory curing, etc., to prevent command failures and matching errors, and reduce operating costs. System requirements, effects of ensuring integrity

Active Publication Date: 2020-04-14
CASCO SIGNAL
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  • Application Information

AI Technical Summary

Problems solved by technology

[0007] 3. In the process of data processing, there will be memory solidification, random failure of memory will cause communication failure, and even communication message matching error

Method used

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  • Computer interlocking system communication method based on coding
  • Computer interlocking system communication method based on coding
  • Computer interlocking system communication method based on coding

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Embodiment Construction

[0026] based on the following Figure 1 ~ Figure 4 , specifically explain the preferred embodiment of the present invention.

[0027] The present invention provides a coding-based computer interlocking system communication method, which is implemented based on the computing module in the computer interlocking system, and includes the following steps:

[0028] When receiving data from the application layer, according to the principle of CRC composition, the received data is disassembled into CRC time-sensitive feature information and CRC non-time-sensitive feature information, and VCP encoding is performed on the CRC time-sensitive feature information to obtain VCP variables and VCP check codes. The VCP check code and the compensation value Rectify provided by the offline configuration tool convert CRC non-time-sensitive feature information into NISAL codes through BOOL operations.

[0029] When sending data to the application layer, use the VCP check code and the compensation...

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Abstract

The invention discloses a computer interlocking system communication method based on coding. The NISAL technology, the VCP technology and the CRC technology are comprehensively applied; redundant coding and timeout judgment of the communication message are realized; the integrity and timeliness of the data are ensured; the conversion among the codes is assisted by a compensation value in an offline data mode; instruction failure and matching errors are prevented; a pure coding mode is adopted to realize security protection of the communication message; the method is suitable for single-core and multi-core CPUs; requirements for an operating system are reduced, two different real-time operating systems are not needed, a single authentication real-time operating system is not needed, only one real-time operating system is needed, requirements for a compiling system are reduced, two different compilers are not needed, a single authentication compiler is not needed, only one universal compiler is needed, and portability is achieved.

Description

technical field [0001] The invention relates to a coding-based computer interlocking system communication method. Background technique [0002] The computer interlocking system uses computer as the main technical means and combines information, control, fault tolerance, failure-safety and other technologies to realize the signal system of station interlocking. At present, the domestic computer interlocking system mainly includes dual-machine hot standby system, 2 by 2 out of 2 system, 3 out of 2 system, etc. [0003] The communication protocol based on the computer interlocking system is mainly the RSSP-I protocol (Railway Signal Safety Communication Protocol-I Protocol), which is a safety communication protocol based on a closed system, which can repeat, delete, and insert data frames during the communication process. , out-of-sequence, damage, delay, etc. for protection. [0004] The direct implementation of RSSP-I communication on the current domestic dual-computer hot ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04L1/22G06F11/10
CPCH04L1/0061H04L1/22G06F11/1048
Inventor 余勇平季志均喻焰张磊林伟欣李卫娟许明旺韩玲玉
Owner CASCO SIGNAL
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