Power And Electricity Bill Monitoring On Smart Phone

Safaei, Javad (2016) Power And Electricity Bill Monitoring On Smart Phone. Project Report. UTeM, Melaka, Malaysia . (Submitted)

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Abstract

This report aims to present a project on power and electricity bill monitoring on smart phone. This project is motivated by three problems. First, in commercial sectors the electricity bill can become very high and the Building Management Systems used to manage power consumption are expensive and prone to limitations in terms of power measurement and data logging. Second, in industrial sectors where there is a demand to monitor heavy machinery, it is necessary to have devices that can be easily installed and measure the usage. Third, devices that can monitor multiple AC power lines are crucial in countries like Malaysia where Net Metering Scheme is going to be implemented. To address these issues, this project tends to build a device that can measure multiple AC power lines such as power consumption and PV power generation simultaneously. Moreover, the proposed device needs to record the hourly, daily, monthly and yearly power usage so as to offer the optimal power management solution to the users in both industrial and residential areas. Lastly, the project needs to work based on the existing WLAN in the house to assess its easy installation. This project adopted a methodology with various steps to meet the objectives. A PCB was fabricated in a packaged design and the appropriate mobile apps was designed. The device was connected to two Current Transformers that are clamped on the AC power lines, measuring the electricity usage and PV power generation at the same time. In this project ESP 8266 was employed both as the microcontroller to perform decision making and as the WiFi transmitter to connect to the house WLAN router. EEPROM was used to data log the hourly, daily, monthly and yearly data of usage and generation. Smart phone showed the data saved by the EEPROM by communicating locally with the EPS 8266 via router. Multiple AC current measurement was performed by utilizing the multiplexer to route several data. The current measurements were based on RMS calculation in accordance with the methodology. The designed device successfully met the objectives of the project. Future researches need to consider integrating power factor measurement and cloud computing to make the instrument applicable to heavy machinery loads and usage in Demand Side Management.

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