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Multi-user meter manufacturers tell you more about multi-user meter

Views: 信息来源:山东科大中天电子有限公司 发布时间:2017/1/12 Source of information: Shandong University of Science and Technology Zhongtian Electronics Co., Ltd. Release time: 2017/1/12
Multi-user meter manufacturers tell you more about multi-user meter:
Multi-user fully electronic watt-hour meters are in line with China's national conditions. Most of our residential buildings or apartments are residential buildings. A building generally contains several units, and the number of each unit is generally close to ten, dozens, and dozens more. In response to the above situation, in order to facilitate meter reading and power management, some property management departments currently install multiple single-block meters in the stairwell. Such a simple combination is bulky, unattractive and uneconomical. It is necessary to design a centralized, multi-user, all-electric energy meter with small size, complete functions and economy. This centralized table can be used in the same unit or even a building, but it is not a simple combination of multiple single tables.
(1) Energy measurement unit for each household: It is mainly composed of voltage and current sampling and dedicated energy meter chips (such as BL0932B, ADE7755, etc.). Its task is to complete the accumulation and storage of the electricity consumption of each user, and at the same time convert the electricity into corresponding pulses and output or send them to the microcontroller for processing. Household electrical energy measurement units are centrally installed on a printed circuit board, and the area is smaller than a cigarette box. Each household has one meter, and each household measures separately without affecting each other.
(2) Single-chip microcomputer system: It is an intelligent data acquisition processing and control unit. The whole system is installed on a printed circuit board with a size of about 200 * 80mm2. Its task is to receive and store the power of each user, control the public display after processing, periodically and alternately display the power of each user (or remaining), control external communications, and complete meter reading or remote control.
(3) Output section: It mainly includes public display, external communication and control interface. The public display alternately displays the account number and power of each household, which can work continuously for 24 hours, and users can check their respective usage at any time. It is not difficult to see that the above-mentioned centralized multi-user energy meter is a high-tech product combining electronic technology, computer technology and communication technology. It has a small size and can accommodate a large number of households (a 24-house centralized multi-user energy meter whose area is about 1/3 of a simple centralized installation with a single meter), and has the function of "one household, one meter". It is worth mentioning that there is still a type of centralized multi-user electronic energy meter on the market. The sampling is performed by each household, but the electricity consumption calculation of each household is completed by the same chip or single-chip microcomputer system. . This type of table does not have the function of "one household, one table", both in terms of structure and principle. Another problem is that the calculation of the energy consumption of each household is completed by the same component, that is, the calculation of the electricity consumption of each household has to wait in a queue. This will inevitably cause errors in electricity measurement. The larger the number of households, the greater the error.
Multi-user electricity meter manufacturers welcome you to our company, we will update more relevant knowledge regularly, keep following us!

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