多用户电能表 远传系统主要由远传表（多用户电能表）传输网络、中继器、通讯适配器主控计算机和系统软件等部分组成。 The centralized multi-user energy meter remote transmission system is mainly composed of remote transmission meter (multi-user energy meter) transmission network, repeater, communication adapter main control computer and system software. The collected data is uploaded to the property management computer through the RS485 bus. Perform calculation, query, statistics, and printing operations on the management computer to achieve intelligent property management of the entire district energy meter.
1. Composition of multi-user energy meter system:
Multi-user energy meter: The meter with the function of remote transmission of signals and data used in the house is a remote meter. The measurement method is the same as the traditional meter. The difference is that data transmission, remote meter reading and remote sales are added to the original base meter Power and remote power off function.
Communication adapter: The communication adapter is selected. Its main function is to connect multiple electric energy meters and collectors to remote computers via RS485 bus or other transmission networks to achieve electrical energy data network transmission.
Enhanced repeater: When the distance between the communication adapter and the remote meter or collector is more than 2000 meters, you should add an enhanced repeater. To amplify the communication signal and extend the communication distance. Its technical indicators are as follows: Capacity: 128 devices (electric meters or collectors); Extended distance: 1200 meters; Operating temperature: -25 ℃ ~ + 50 ℃; Relative humidity: ≤95%; Power supply: AC220V 50HZ; Power consumption: ≤ 5W.
Central management computer: Centralized management of multi-user energy meter upload data.
Communication line: The line connecting the collector, the energy meter to the communication adapter uses a shielded twisted pair. The model is RVVP 2╳1.0;
Management software: The online prepayment management software mainly implements remote meter reading, remote control, remote recharge, report printing and other operations on the energy meter, and monitors, manages, stores, and records functions of the entire system.