HIT2GAP Modules

The HIT2GAP Project will integrate different data sources (e.g. wireless sensors, social data, web sensors) with modules which will demonstrate the analysis, diagnosis and prediction of building performance. These modules will link into the HIT2GAP platform.

Modules include:

  • user behaviour
  • data visualisation
  • fault detection and diagnosis (FDD-PCA Module)
  • building performance assessment.


HIT2GAP has developed a facility for fault detection and diagnosis using principal component analysis.  It works by comparing current data against a reference model which has been constructed from historical data.  The module behind this service, known as the 'FDD-PCA module', analyses the values and variances of the incoming data from a building's sensors, looking for any instances where the incoming data does not fit the model.  If an abnormal set of readings is identified, the contribution of each variable is analysed in order to determine which variables were connected with the faulty reading, enabling the nature of the abnormality to be identified.  HIT2GAP's FDD-PCA module is currently being trialled in the Bouygues Challenger building, near Paris.  More information about the FDD-PCA module can be found here

The Behaviour Module

The aim of the behaviour modules is to deliver user behaviour information to the building users, to highlight energy wastage and to suggest behavioural and systemic changes. 

The video below explains in more detail.