Abstract:
The conventional energy meter lacks the ability to provide real-time power
measurements and demand information crucial for modern demand management
strategies. To address this gap, we developed a smart meter device capable of recording
real-time power usage and presenting demand information to consumers via a visual
display. Additionally, the device can transmit data directly to consumers' mobile phones
in real-time. The fabrication process of the smart meter device involved integrating key
components such as current and voltage sensors, a microcontroller, a clock module, a
display, and a Wi-Fi module. The current sensor accurately measures AC currents
ranging from -30A to +30A. The voltage sensor, specifically the ZMPT101B module,
provides precise AC voltage measurements, making it suitable for domestic voltage
levels. The microcontroller selected for the device, Arduino Pro Mini V2, offers compact
design and essential features for data processing. A clock module (DS1307) ensures
accurate timekeeping, crucial for real-time data analysis. The display, a 128x64 Graphic
LCD, enables graphical representation of power usage data. Integration with a Wi-Fi
module (NodeMCU ESP8266) facilitates real-time data transfer to consumers' mobile
devices. The system architecture comprises four subsystems: power calculation, data
transfer, online server, and user interaction. Communication between the smart meter and
consumers' mobile devices is enabled through the Arduino Pro Mini and the Blynk IoT
platform. The smart meter system architecture, including hardware and software
components, offers an effective solution for real-time energy monitoring and demand
management.
