Automatic Energy Metering System-building Steps

Automatic Energy Metering System-building Steps:

Materials Required:

i) Energy meters with communication facility i.e. RS485

ii) Remote serial server (Wired/Wireless) with adapter

iii) Local area network

iv) Shielded communication Cables 

STEPS:

Connect energy meters to the remote serial server through data communication cable in daisy chain method maximum upto 30 nos. 

Connect the remote server to the access point of LAN with fixed IPs if you want to transmit data directly or wirelessly.

Write a software for client server communication using any language you know like Java, Visual Basic, Pearl, C, Python using Modbus protocol. Make sure that query should matches with energy meter vendor memory map.

Next step is to build a database in station server or dedicated Machine to store energy meter data to store energy meters real time data with time date and stamps which will be used for calculating unit consumption and electricity bills. 

For this purpose you can use open source databases like MySQL, PostgreSQL.

For testing purpose you can use free software Modscan or others. Once you are able to communicate with remote meters successfully then use your software to send queries to energy meters via LAN and collect required data such as voltage, current, power, KWh etc. and store them to database.