Take A Look At The Functional Characteristics Of Smart Meters

Smart meters are advanced metering devices that collect, analyze, and manage electrical energy information based on modern communication technology, computer technology, and measurement technology. The basic principle of smart meters is: relying on A/D converters or metering chips to conduct real-time collection of user current and voltage, and analyze and process through CPU to realize the calculation of forward and reverse, peak-valley or four-quadrant electrical energy, and further integrate power and other content Output via communication, display, etc.

The composition and working principle of electronic smart meters are quite different from traditional induction meters. The induction meter is mainly composed of aluminum plate, current and voltage coil, permanent magnet and other components. Its working principle is mainly measured by the interaction of the eddy current induced in the movable lead plate and the current coil. The electronic smart meter is mainly composed of electronic components, and its working principle is to first sample the user's power supply voltage and current in real time, and then use a dedicated energy meter integrated circuit.

The sampled voltage and current signals are processed and converted into pulse output proportional to the electrical energy. Finally, the single-chip microcomputer is used to process and control the pulse to be displayed as power consumption and output. Usually we call the number of pulses emitted by the A/D converter when the smart meter measures one kilowatt-hour of electricity as the pulse constant. For smart meters, this is a relatively important constant, because the A/D converter per unit time The number of pulses sent will directly determine the accuracy of the meter.

The structure of the smart watt-hour meter can be roughly divided into two categories: an electromechanical integrated type and a fully electronic type. Electromechanical integration, that is, adding certain components to the original mechanical watt-hour meter to not only complete the required functions, but also reduce the cost and easy to install. Generally speaking, its design is not to damage the original physical structure of the current meter. On the basis of changing its national measurement standards, the additional sensor device becomes a smart meter that also has electrical pulse output while measuring mechanically, so that electronic counting is synchronized with mechanical counting, and its measuring accuracy is generally not lower than that of mechanical counting. Degree meter.

Mother Company: Guangdong Super Telecom Co., Ltd. (Stock No. SH.603322)

Business Type: ISO 9001:2008 and ISO 14001:2004 certified Manufacturer

Main Products: Telecom SCADA; Energy Meter; RTU; Cabinet air conditioner; CRAC

Total Annual Revenue: US$ 14 Million-US$20 Million

Main Market: Asia, South America, Europe

Location: Chengdu, China (Panda’s homeland)

Year Established: 2010

R&D Achieves: 16 product patents; 6 software copyrights

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