The Visualization-Driven Approach to the Analysis of the HVAC Data

The smart heating, ventilation and air conditioning systems (HVAC) are able to reduce energy consumption by fitting it better to the users’ behavior or building and equipment needs. Monitoring the HVAC state allows detecting the anomalous deviations in the system. The paper presents the visualization-driven approach to the analysis of the HVAC systems logs that can be applied for monitoring in the real time mode. The authors propose to define the time periods during which the state of the system remains almost unchanged and visualize the average values of the HVAC parameters using the heat map. This allows attracting the analyst attention to the changes in the HVAC system as well as detecting its life rhythm. We demonstrate our approach with an application to the VAST MiniChallenge-2 2016 data set, which describes the functioning of the three-storey building.