Energy Consumption Collection Design for Smart Building

With increasing cost and energy consumption, many organizations would find a way for monitoring and to save energy. Our work would design and implement a monitoring system to collect energy usage data and use such data to analyze energy consumption patterns. We measure the amount of electricity of AC outlets, lights and air conditions in a building. Our work consists of 3 parts: Power Data Collection, Data Processing and Data Report. Power Data Collection is composed of power meters built on an ESP8266 Wi-Fi platform and PZEM-004T which will be attached to 3 types of devices: AC outlet, air condition and light. The Data Processing part is performed at the Elasticsearch server by gathering the measured power data from multiple power meters via MQTT protocol. The Data Report part uses Grafana to show usage statistics via a web interface. Usually, one room will have number of lights and outlets, and one or two air conditions. We also collect the measured data every 15 minutes. Thus, collected data will become very huge in a short period of time. In the future, we need to do pattern analysis of energy consumption of a building.