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Safe processing method for data delay transmission in safe 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: 2017-12-08
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

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  • Safe processing method for data delay transmission in safe coding system
  • Safe processing method for data delay transmission in safe coding system
  • Safe processing method for data delay transmission in safe coding system

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Embodiment Construction

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

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

[0026] figure 1 The structural block diagram of th...

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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 in a security coding system, in particular to a security processing method for data delay transmission in a security coding system. Background technique [0002] If the state variable collected in the railway signal system is 0, it is the data on the safe side (false value), and if the value is 1, it is the data on 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 immediately, but delays it for a period of time, and the value remains in the state of 1 during this time, so that 1 can be sent to the logic processing. unit. In this way, the collected dangerous-side data 1 can be sent out to prevent short-term external disturbance, so as to improve the stability and safety of the system. [0004] In most systems, the delayed transmission of data is accomplished by counting time stamps...

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Application Information

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Patent Type & Authority Applications(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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