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Design of Multi-user Energy Meter Based on DSP and GPRS Concentrated Meter-reading Technology

Author: WuSiCong
Tutor: PengKe
School: Hunan Normal University
Course: Circuits and Systems
Keywords: Power Measurement Digital Signal Processing Hilbert filter Wireless packet CCMS Multi-user meter
CLC: TM933.4
Type: Master's thesis
Year: 2009
Downloads: 206
Quote: 2
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Abstract


The traditional \With digital signal processing technology and wireless network technology , the use of a single block of time-measuring meter multi-channel power users, and centralized management and control , both in theory and practical are technically entirely feasible . Therefore, this paper will be designed based on DSP technology and GPRS multi-user meter reading meter for metering further centralized management , reduce costs to provide greater convenience . Research and design in this paper based on DSP technology and GPRS multi-user meter meter reading , mainly energy metering module by the DSP , MCU data management unit , GPRS wireless communication module and other components. Among them, the multi-channel power measurement module to complete the data collection and measurement ; complete multi-user data management unit of data storage and transmission of electrical energy and other management ; wireless communication modules for data management center between the meter and the wireless real-time transmission . Paper first introduces the field of energy measurement technology status and development trend , theoretically compare a variety of active and reactive energy metering algorithm, and choose the most suitable measure for multi- user real-time algorithms. Second, for the multi-user meter hardware and software components were designed in detail , including: hardware, power supply module , reset with brownout detection, signal acquisition circuit , DSP and ADC interface , DSP and MCU interface and MCU and GPRS module interface circuit design ; software DSP processor ADC interrupt subroutine , energy measurement subroutine , HPI interface subroutine , subroutines , and GPRS Interface MCU software module design . Then , the paper also for the design and optimization of system reliability analysis and elaboration . Finally, the chosen active and reactive energy metering algorithm Matlab software simulation were carried out , and some of the key circuits of the actual test . Simulation and test results show that : the system can achieve better active power , reactive power , apparent power , power factor and other parameters of concentration measurement and management .

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CLC: > Industrial Technology > Electrotechnical > Electrical measurement techniques and instruments > Power the number of measurements and instrumentation > Power measurement,power meter
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