Energy Data Logger Using Internet of Things (IoT)

Abstract

IoT (Internet of things) has become an interesting topic in the field of technological research. It is basically, interconnecting of devices with each other over the internet. We typically think of the Internet of things (IoT) in terms of autonomous cars and smart homes, but some of the best applications of IoT technology are in fields that are intensely practical. One such example is Digital data logging which is a standalone device that can read electrical signals from measurement devices and store the data to server. A Voltage sensor, Current sensor and multichannel temperature logger is connected to developed Wi-Fi module Esp8266 (NodeMcu) to measure and record voltage, current, energy and the temperature of different devices, home appliances etc. capable of sensing voltage up to 440V, Current 350A and temperature with a range of 0 °C up to 50 °C, depending on the type of sensor connected. The Esp8266 Wi-Fi module receives the analogue voltage, current, temperature data from particular sensors and conversion to digital data is performed. The voltage, current and temperature reading is then uploaded to server via internet. So that it can be retrieved later on a computer. The measured data will be stored at the intervals of 1second, 5 seconds, 10 seconds, or 1 minute, at user’s preference. The logger will be disconnected automatically if exceeds preset values by user and protected by single channel relay. Voltage, Current and Temperature sensors are tested to prove they have the same properties for the output voltage, current, temperature and humidity sensitivity before applied to the system. This project is focused on the consumption of energy of a particular area and particular device. If we calculate energy consumption for one-week of any particular site or electrical equipment, then we can predict the consumption of energy for coming weeks, month and years of that site or electrical equipment. Thus, we can save energy and save money. It has potential to become a low-cost energy logger for laboratory, factory, home and offices use if the hardware is further developed.