Implementation of a GSM-based SMS token recharge system for single phase prepayment energy meter

Abstract

In this paper, a developed GSM-Based SMS token recharge system for Prepayment meters is presented. The versatility of the GSM technology is put to use to enable wireless meter recharge to the comfort of the users. The meter consists of ADE7755 used to generate the consumption pulses that are measured and recorded by Atmega328P. Atmega2560 was used to manage the unit according to consumption. It also controls and monitors the activities of the meter and communicates using SIM900 to achieve the SMS recharging. The server consists of SIM900 for SMS recharging from the Distribution Company’s office and Atmega328P, interfaced serially with the PC. The software module housed in the PC consists of the Application Platform used especially for token generation, Distribution Companywireless recharging and Database management. SMS Commands format for recharging of the meter was also developed.Both microcontrollers are suitably programmed in C++ language to enable it carry out the prescribed function of SMS token recharging especially the Atmega2560 in recognizing the SMS recharge format. It also makes the recharging algorithm available and controls it as well. The resultof the test carried out for SMS recharging of token shows 100% success rate in the chosen network operator. With the result obtained, the GSM-Based SMS Token Recharging System developed in this work is reliable and efficient for use by the Electricity Distribution Company and the consumer.