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Fast CTCS-2 level train transponder message encoding and decoding method

A transponder message, CTCS-2 technology, applied in the field of message encoding and decoding, can solve problems such as low efficiency, achieve high efficiency, improve encoding and decoding efficiency, and simple and clear effects

Inactive Publication Date: 2017-09-08
HENAN SPLENDOR SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current encoding and decoding methods are inefficient

Method used

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  • Fast CTCS-2 level train transponder message encoding and decoding method
  • Fast CTCS-2 level train transponder message encoding and decoding method

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Embodiment Construction

[0010] The technical solutions of the present invention will be described in further detail below through specific implementation methods.

[0011] A method for implementing rapid encoding and decoding of CTCS-2 train balise messages. During the encoding process, the balise messages stored in the form of byte arrays are converted into encoded bit streams, and the encoded bit streams are grouped, scrambled, and checked. The encoding process; the decoding process converts the transponder message stored in the byte array into a decoded bit stream, and performs a decoding process including detection and descrambling on the decoded bit stream.

[0012] Preferably, in the encoding process, the encoding step includes: 1) first converting the 830-bit transponder message stored in a byte array into an encoded bit stream for storage, so as to enable rapid grouping and improve encoding efficiency; 2) Use 12 scrambling bits to scramble the data bits of the transponder message, the initial...

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Abstract

The invention provides a fast CTCS-2 level train transponder message encoding and decoding method. The method comprises the following steps: in an encoding process, converting a transponder message stored in the manner of a byte array into encoding bit streams, and performing an encoding process comprising grouping, scrambling and verifying on the encoding bit streams; and in a decoding process, converting the transponder message stored in the manner of the byte array into decoding bit streams, and performing a decoding process comprising detection and scrambling on the decoding bit streams. The fast CTCS-2 level train transponder message encoding and decoding method has the advantages of scientific design, simplicity, clarity, high stability and high efficiency.

Description

technical field [0001] The invention relates to a message coding and decoding method, in particular to a method for realizing rapid coding and decoding of a CTCS-2 train responder message. Background technique [0002] In the CTCS-2 train operation control system, the balise is an important core component and an indispensable device. The transponder needs to upload information such as line basic parameters, line speed information, temporary speed limit information, station approach information, turnout information and special positioning information to the train control host. These information are used by the train control host to control train operation, speed regulation and braking. Therefore, the accuracy of the transponder message data and the security of transmission are very important to the train control system. The transponder message format is divided into long message with 1023 bits and short message with 341 bits. At present, the long message with 1023 bits is ad...

Claims

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Application Information

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IPC IPC(8): H04L1/00
CPCH04L1/0057H04L1/0061
Inventor 王晓帅赵金磊张豪楷
Owner HENAN SPLENDOR SCI & TECH