Design Of Electric Monitoring And Analyzing Device Based On ADE7758

Electric Monitoring and Analyzing Device is the transmission of electricity power line signal and power devices for real-time measurement device, which can measure transmission voltage and current values, and can measure active power, reactive power, apparent power, power factor and harmonic wave component and bidirectional power energy etc., and basic real-time monitoring of power breakdown, The device has practical significance to the electricity see to rand users.According to the needs of users and the electricity sector, this paper conducts an in-depth study on how to realize multifunction and improve the accuracy. And the realization of real-time fault monitoring. First introduced the development of electric power equipment technology and basic electrical parameters of the measurement theory, the current multi-monitor technology commonly used in the measurement accuracy, fault detection, cost and reliability, analyzed and compared, then the technical requirements under the system , and features to determine a power parameter monitoring instruments of the overall design, and implementation programs. Hardware design part focused on how to simplify the circuit, reducing equipment costs and to achieve multi-fault detection and precision measurement, energy measurement using high-performance chips to replace the traditional sampling circuit signal acquisition and integrated in the design of components used simplify the external circuit, use high-speed low-power single chip main control unit as the next-bit chip, used in communications on the RS-485 serial port, and according to the Muti-function watt-hour meter communication protocol. And systematic study of the hardware design of anti-jamming technology. Software design part of the paper on the combination of MCU chip energy metering and monitoring of multi-function measurement principle are described, detailing the parameters in a variety of power and communication. Note that when using a variety of anti-jamming design technology. And use multiple interrupt real-time technology to achieve rapid processing of various tasks. PC application software using Visual C + + design, divided into three parts, of which the user application interface part of the dynamic data display and real-time monitoring and alarm; data query part of the realization of the basic parameters of the time saved to the Access database, so any query and analysis , history of back load operating conditions; data analysis part of the voltage and current harmonic parameters to be shown the histogram table to achieve a more intuitive analysis of harmonic content.After adjustment the electric monitoring and analyzing device designed to achieve a variety of real-time monitoring and alarm features to a variety of electrical parameters of the measurement, in achieving high measurement accuracy while reducing the equipment based on the dimensions, design composition of the monitoring analyzer device accuracy high, multi-functional, low cost, real time and there will be a great instrument in the power market space.