Voltage Monitoring Statistics Instrument research
Abstract: This paper introduces a kind of STC89C52 voltage monitoring based on single chip microcomputer principle and statistical instrument component parts. The design of the voltage monitoring statistics instrument not only kept the traditional statistics meter precise stable excellent properties, and revolutionary joined the innovation module. Has been widely applied to our daily life and national economic fields in.
The design of hardware circuit can be divided into eight sections: overall conversion module and single-chip microcomputer control mood-related module, digital display module, &high module, clock module, storage module, keystroke module, serial interface module. Voltage monitoring statistics by single-chip microcomputer chip instrument STC89C52 and AD module implements data acquisition and processing, finally and in six digital tube display. Design every hour collect data once, 24 times a day gathering. Acquisition time is 1 seconds. Time PCF8583 control by real time clock chip, get the data in six digital tube display and feedback to STC89C52. In key module, realize human-machine humanized exchanges by buttons.
This design software module design completed by assembly language, points, data acquisition main routine handling procedures, clock program, storage procedures, keyboard program, show program, send and receive procedures, etc. Cooperate with PC software hunger for grid real-time.according, data statistics, analysis, processing, storage, printing, etc. Can accurately reaction power grid electricity quality for the implementation of scientific management provides favorable basis.
Keywords: STC89C52 Voltage Monitoring Statistics Apparatus Assembly language AD transformation