Radio communication type comprehensive power distribution measuring and recording instrument

A technology of wireless communication and test recorder, which is applied in the direction of electric power measurement, instrumentation, signal transmission system, etc. through the application of digital technology, which can solve the problems that remote real-time monitoring cannot be realized, and achieve fast speed, regular analysis and high precision. Effect

Inactive Publication Date: 2003-11-05
上海临空瑞华电器有限公司
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Problems solved by technology

[0003] The invention overcomes the defect that the existing power quality monitoring device of the power distribution system needs to regularly go to the site to read the meter and cannot realize remote real-time monitoring, and provides a wireless communication type power distribution comprehensive test recorder, which can not only accurately and quickly It can measure the various power quality indicators of the power distribution system, and can communicate wirelessly, and transmit the data to the remote place, so as to realize the remote wireless real-time monitoring of the power quality of the power distribution system.

Method used

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  • Radio communication type comprehensive power distribution measuring and recording instrument
  • Radio communication type comprehensive power distribution measuring and recording instrument
  • Radio communication type comprehensive power distribution measuring and recording instrument

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Embodiment Construction

[0008] see figure 1 , figure 2 , image 3 , a wireless communication type power distribution comprehensive test recorder, including signal acquisition, data processing, data communication three parts. Signal acquisition includes AC-DC power supply module, voltage and current transformers, digital-to-analog converter ADC; data processing includes digital signal processor CPU1, system clock and parameter memory, program memory 1, data memory, external logic circuit 1; data communication Including communication module interface and GPRS communication card connected with CPU1.

[0009] see figure 2 , The power supply part adopts a customized AC-DC power supply module, and the sampling power supply is used as the working power supply at the same time. There is no need to connect another power supply, that is, a three-phase AC power supply is used. The monitoring voltage (secondary side, phase voltage) can range from 50V-350V; and when the power system is running without phase...

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Abstract

The present invention is one comprehensive monitoring and recording instrument for power distribution system. The instrument includes ADC, CPU1 as digital signal processor, system clock and parameter memory, program and data memory, peripheral logic circuit I, communication module interface contained to CPU1 and GPRS communication card, which includes CPU2, program memory II, outer logic circuitII, communication interface module, GPRS module and SIM card.CPU2 is connected to CPU1 via the communication module and serial communication interface for data exchange while being connected to GPRS module and SIM module via serial-to-parallel converting module for data exchange. GPRS module is also connected to an antenna for data signal emission via the antenna.

Description

technical field [0001] The invention relates to a comprehensive monitoring and recording device for power quality in a power distribution system. The device integrates data collection, data analysis, data storage and data transmission, and is used for real-time monitoring and regular analysis and evaluation of power quality in the power distribution system. Background technique [0002] At present, the power quality monitoring devices commonly used in power distribution systems are composed of electrical quantity acquisition (transformer), data analysis and storage (16-bit single-chip microcomputer or DSP), data display, and communication interface (RS232 or RS485). The monitored power quality indicators are scrolled and displayed on the LCD screen, which can be viewed at the monitoring site, or the technicians regularly take a special meter reading device to the site to read the meter, and bring the read data back to the monitoring center, and input it into the computer for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R21/133G08C17/02
Inventor 陆政德张晔冒勇宋雷军
Owner 上海临空瑞华电器有限公司
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