Design and Realization of a New Type of Portable Switch Machine Tester

WANG Quan-gang1，CHENG Liang-lun1，ZHANG Li-jia2
（1.School of Automation，Guangdong University of Technology，Guangzhou 510006，China；2.School of Computer Science and Technology，Guangdong University of Technology，Guangzhou 510006，China）
Abstract：For the present situation of the point machine testers used by railway system have disadvantages such as heavy weight and moving difficulty，and it’s impossible to use it on orbit maintenance，this paper designed a point machine tester based on small PLC control system，which can test the switching power and working current of point machines accurately，and the wireless communication technology based on WLAN had been used to the system. Through the small range of wireless local area network，smart mobile phones and other PDAs can collect and record the date from point machine testers. Through field testing，the instrument is stable and reliable operation to meet the demand of real-time and on orbit detection for switch machine.
Key words：PLC control；point machine tester；WLAN technology