Study Of A New Type Fault Recorder

Fault recording system is a automatic recording and a analysis system working all the year, monitoring the operation condition of electrical system. Electric value recorded by fault recording system takes great effect to ensure safe operation of electrical system. Communication is always important segment of fault recording system's data transmission .Rational communication scheme can enlarge information volume of fault recording, increase reliability, accuracy, flexibility, real-time ability and realize resource share. Traditional communication adopting serial port can produce bottleneck effect (speed of network transmission is higher than that of serial port ).The paper introduces a kind of new communication scheme that combines Ethernet and internal memory share and formulates realization of software and hardware in detail .Hardware, the new fault recorder using the Global Positioning System (GPS), embedded industrial computer, digital signal processors, and other advanced technology and development platform.Device uses the pattern of many cpu parallel working.Software, in the first Analyzed the Concrete communication tasks of fault recording system. The ethernet communication between the upper and the middle base on TCP/IP protocol and is taken effect by Socket programs. Adopt memory share communication based on dual-port RAM between the middle and the low. The middle's software is the core of the communication, programmed by C language, which is user-oriented and solving-process oriented, Superiority of C language, such as operate on hardware directly makes the development and the maintain much easier.Finally, introduced the analog value configurationon, switch value configuration, anable mode and basis.