Integrated Test Station Based on Virtual Instrument

The integrated test station for railroad-repair-shop based on Virtual Instrument (VI) and Lab VIEW technology is composed of VI, multifunction signal collector, analog digital I/O card, signal conditioning unit, regulating circuit and channel selector unit. Operator sent commond via VI, and transformed it to digital signal data, then sent it to I/O card and completed D/A converting. After adjusted the voltage of analog signal, corresponding channel selection was implemented with relay matrix. The analog signal is transmitted as the input of tested instrument. After software tested, the testing process and result is stored, resource sharing in LAN was realized with net equipments.