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Safe Processing Method for Delayed Data Transmission in Secure Coding System

A technology of safe coding and safe processing, which is applied in the field of data delay transmission and safe processing in the safe coding system, can solve the problem that the safe data cannot meet the requirements, and achieve the effect of ensuring safety

Active Publication Date: 2020-08-28
CASCO SIGNAL
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Problems solved by technology

[0004] In most systems, data delayed transmission is accomplished by counting time stamps and recording numerical changes. This method can meet the needs of non-secure data processing, but this method can no longer meet the requirements for secure data, because this The handling of the system cannot prevent random failures of the system

Method used

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  • Safe Processing Method for Delayed Data Transmission in Secure Coding System
  • Safe Processing Method for Delayed Data Transmission in Secure Coding System
  • Safe Processing Method for Delayed Data Transmission in Secure Coding System

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0025] The invention provides a safety processing method for delayed data transmission, which can be used in a railway signal safety coding system to perform safety collection and processing functions. The data in this type of system are all Boolean quantities 0 or 1. In order to ensure safety, the Boolean quantities are encoded as 32-bit redundant data conforming to a certain algorithm.

[0026] figure 1 The structure block diagram of the present inventi...

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Abstract

The invention relates to a safe processing method for data delay transmission in a safe coding system. A queue used for storing data of a port collected in a delay time window is firstly defined, every time the system collects the data stored in the window, the data is recomputed once, the finally sent state data of the port is a result of all data in the time window which has computed once, and safety of the result is judged. Compared with the prior art, the method provided by the invention has the advantage of high safety in output data.

Description

technical field [0001] The invention relates to a data processing method of a safety coding system, in particular to a safety processing method of delayed data transmission in the safety coding system. Background technique [0002] If the value of the state variable collected in the railway signal system is 0, it is the data of the safe side (false value), and if the value is 1, it is the data of the dangerous side (true value). [0003] The data delay sending function means that when the state variable collected by the system changes from 0 to 1, it does not send 1 out immediately, but delays for a period of time, and only when the value remains at 1 during this period can it send 1 to the logic processing unit. In this way, the collected dangerous side data 1 can be prevented from being sent out due to short-term external disturbances, so as to improve the stability and safety of the system. [0004] In most systems, data delayed transmission is accomplished by counting ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03M5/04
CPCH03M5/04
Inventor 王建涛周庭梁陈宜航方圆孙军峰唐俊董高云傅李育
Owner CASCO SIGNAL
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