Design And Implementation Of Data Collecting And Testing System For Railway Signal Hump Drive Unit

Since 20th Century 90's in China to gradually push forward the railway signal control system of hump marshalling station,then change the status of train automatic control,but the railway hump signal control system of hump drive unit,in the factory after manufacturing need a functional test,in order to determine whether a product is qualified,in the traditional manual test,the test efficiency is very low artificial visual reading of the measured value,and also has the measurement precision is accurate problem,which makes the function test link products become the bottleneck process in the manufacturing process,design a set of automatic collecting and testing system,improve the testing efficiency and the measurement precision is imminent.This paper present the hump control system manufacture and test requirements,to cater to the railway equipment production must,a special based on Embedded Technology in railway signal control system of hump drive unit for information collection product test system functional test design,according to the design characteristics and parameters of hump drive unit requirements,test hardware custom modules,given the principle of design and the PCB of each hardware module,and illustrates the design requirements of each module and function.Secondly,according to the driving unit qualified standard,into the expectation maximization algorithm(EM),the design and implementation of system analysis of PC data acquisition unit with drive,drive unit eligibility criteria for parameter setting,the use of intelligent detection of hardware module feedback timely acquisition of voltage and time information,judging whether the drive unit qualified standard,the host computer system analysis batch of data by computing the expectation maximization algorithm and data statistics,analysis and summarize the judge a variety of number and batch of the drive unit.the qualified rate of the quality problem of point,table analysis provide year-round products statistics,provide quality supervision and standard for railway hump signal our drive unit production standard,the auxiliary product standardization production,make me country hump drive unit qualification rate reached one hundred percent.Into the data analysis to improve the intelligence of the system,and provide the basis for quality after the hump drive unit feedback and production,is expected to design and use of the acquisition test system,will greatly improve the efficiency of traditional manual testing,and solves the problem of artificial visual reading measure precision problem may lead to.At the same time,the design idea can also be applied in electronic product testing field of industrial production,realize the urgent demand of product test automation.