Base part development of distance measurement device for fault recorder based on DSP

With the rapid development of computer technique, the performance of electric power system monitoring and control equipments based on microcomputer has been raised. DSP is one kind of new microprocessor with great capability of dealing with data. This paper introduces the structure of the software and hardware of a newly developed fault recorder based on intelligent data collecting unit of DSP. The emphasis is on the software function and main points of its realization in the base part of this equipment. And in the end, experience of developing this equipment and direction according to which the fault record should be improved are discussed.