A Multi-processor Measuring And Control Device

It adopt open and compartment-oriented designing Philosophy by the base of deeply understanding about the Current Situation and Prospect of supervisory control meters at home and abroad.The instrumentation fit the need about comprehensive real-time supervisory controlling on transformer substation and power plant.The instrumentation can act as the watt-hour meter,automatic oscillogragh, automatic synchroscops,besides of auqustion of digital input,analog input,digital output,analog output.The instrumentation can communicate with other intelligent peripherals.The instrumentation have the function of time synchronization by IRIG-B format with GPS.In addition,it can alarm when it find some error by self-checking.It adopt high performance embedded 32-bits microcontroller and Digital Signal Processor with Complex Programmable Logic Device(CPLD).The high processing capability guarantee the realization of multi-serial communication interface,double serial bus,double Ethernet network interface,flexible key operation and LCD display function, accurate time synchronization.We integrate the data base,driver of interface,data sampling and manager of communication,and make the interface be independent by object-oriented programming method and the embedded operation system "VxWorks".There are hundreds of communication protocol library that have been classified as master class and slave class.Every new protocol program code is inherited from master class or slave class,which effectively reduce the work on repeated program code and shorten the period of research and development.By the base of ready-made hardware source,we can use it as a programmable logic controller(PLC) after setting appropriate parameter.The PLC follow the IEC61131-3 standard.If it is necessary,the soft module that following IEC1850 can be embed in the system.The instrument has ten key and a LCD,which make it is very easy to set parameter and view real-time data.