Design and Implementation of Multichannel Discrete Signal Online Monitoring Module
With the increased integration of electronic equipment in industry,types and quantities of discrete signal grew rapid-ly.In response to the real-time online monitor requirements of these signals,a module based on FPGA and CPCI bus was de-signed.By expanding multiple sensor chips and embedding an FPGA amplitude calculation program,this module can measure the amplitude of 96 input signals in parallel.The CPCI universal interface was adopted,enable the module to support online parameter updates,rear wiring,and theoretically can be expanded to achieve online monitoring of any number discrete signals,this overcame the defect of traditional test circuit,such as large volume,fixed parameters and few measurement channels.After verification through channel consistency,real-time performance,and reliability testing,the module has accurate measurement and stable per-formance,and can meet the miniaturization and integration requirements of test equipment.
NETL
NSTL
万方数据
维普
