Development of design monitoring and electricity tokens top-up system in two-ways energy meters based on IoT (Internet of Things)

Abstract

This study aims to develop a design of monitoring and electric token top up system of the two-way energy meter based on Internet of Things (IoT) which can be monitored in real-time using a low cost android application. The design of system was developed using ATMEGA1284P-AU as controller, Quectel M95 module to access internet protocol (IP), MODBUS RTU protocol through RS485 serial as a communication link between kWh meter and modem, and MQTT as the main communication protocol allowing the system to communicate with internet. The MQTT protocol was used to transmit data from the modem to the cloud server. After the development process, the system was then tested to find out the value of the delay between the appearance of the android application and LCD kWh meter. From a hundred times of experiment, the average value of delay, i.e. 1.81 s was resulted. By using the development of this system, it is expected to be an alternative solution for prepaid kWh meter users in managing electric top-up token automatically, practically and can be monitored remotely.