Analysis of double 2-vote-2 fault-tolerant architecture used in Computer-based Interlocking System;

TYJL-ADX Double 2-vote-2 Computer Interlocking System;

Based on embedded system theory,fault tolerant and fail-safe principle,an embedded hardware design with double 2-vote-2 fault tolerant architecture is presented.

Currently the mature Computer interlocking System on the market include dual hot-backup system, two out of three system and clock synchronization double two out of two system.

After the positions of road centerlines were acquired, according to the road line types, we first processed the grouping of coordinate data of road centerlines by extracting straight lines algorithm and detecting circle algorithm based on Rough transform, and then carried out adjustment by method for selecting weight Iteration with Least Trimmed Squares (LTS) initial value.

Research on data fusion algorithm of redundancy information based on least square method

The relative coordinate for straightness error is set up, the discrete values in coordinate are linked based on least square method, then coordinate transform is realized, some eddy genes and contained area conforming to least condition are confirmed using numerical method, the evaluation of straightness error is achieved by compare.