Design of Data Collection System of Dynamic Electronic Railway Scale

The paper proposed a design scheme of data collection system of dynamic electronic railway scale and mainly introduced hardware design of weighing channel which influences performance of the system. The system uses AD625 and second-order low-pass filtering circuit to make primary process for sensor signal, and uses PCI-8325B to realize AD conversion for the processed data and sends the data to front host to make software process through PCI bus, then sends the data to terminal computer through network bridge or Modem to realize unified management for the data. The test result showed that the system meets with actual application requirements of object.