Automatic Meter Reading and Energy Data Extraction of Multifunction Transducer using GSM

Abstract

This paper presents two systems: the automation of energy meter reading based on GSM and the data extraction from a multifunction transducer (MFT). A model based on the automated energy meter reading system for billing purposes using a multifunction transducer is designed. For the automation of the energy meter reading system, the energy consumption of electrical utility is read by an energy meter and calculates the cost of the consumed energy. The data is sent via GSM, which makes it possible to extract the data from the MFT and then transmit it wirelessly. The MFT can read up to 48 different electrical parameters from 30-32 electrical devices, each identified with a specific device address. On a practical field, the different energy meters from a location can be connected to a single MFT unit over a common bus. The PIC identifies the various devices connected to the MFT and sends a master-slave command to the MFT, which follows the Modbus protocol for serial communication initialization. After identifying the register holding the Energy data units, the PIC sends it to the PC or LCD display and stores the information in an EEPROM for backup data storage.