A Modeling Approach For Mobile Monitoring And Supervisory Control Development Based On Open-Source Programming

This paper presents a modelling approach for monitoring and supervisory control the use of energy in buildings. The use of low-cost technology for monitoring and supervisory control of buildings especially the energy consumption is challenging and an open issue in current efforts to improve the efficiency and support the economic development. The low-cost system is very important if the technology is applied in developing countries due to limited funds to build supportive infrastructure and inadequate existing technology to be modified or reconfigured. Internet of Things technology is adopted in the implementation regarding the sensors and its connection to the network so the buildings energy use can be monitored from any location. There are similar technologies, but mostly they are not user-modifiable (open-source) and some of them use uncommon communication infrastructure. These can increase the inflexibility and the budget. The presented research is intended to provide a common modeling approach using Data Flow Diagram (DFD) and some model concept in Unified Modelling Language (UML) for a new alternative technology in monitoring and supervisory control. The approach was tested by using Android-based smart phones which is currently dominant used for connecting to internet. The test result in laboratory showed that the built system using Arduino Mega 2560 microcontroller equipped with sensor DHT22 had acceptable errors compared to the measurement using the standard digital measuring instruments, which are 0.27 degrees C for temperature and 2.67% for relative humidity.