SMooHS Smart Monitoring of Historic Structures

Historic structures are often of extraordinary architecture, design or material. The conservation of such structures for next generations of European population is one of the main tasks, monument conservators are responsible for. To conserve historic structures it is more and more required to understand the deterioration processes mainly caused by the environment. To obtain more detailed information about the deterioration processes in certain cases continuous monitoring systems have been installed. However, most of these monitoring systems were just weather or air pollution data acquisition systems and just basic models for data analysis are used. The real influence of the environment to the structure or the structural material is often unaccounted for. That means that the structural resistance is just calculated from the measurements and not determined by sufficient sensors. Another aspect is the fact that most monitoring systems require cabling, which is neither aesthetically appealing nor in some cases applicable due to the needed fastening techniques. The proposed project aims at the development of competitive tools for the practitioners in the field which goes beyond the mere accumulation of data. A smart monitoring system using wireless sensor networks, new miniature sensor technologies (e.g. MEMS) for minimally invasive installation as well as smart data processing will be developed. It will provide help in the sense of warnings (e.g. if damaging factors increase) and recommendations for action (e.g. window opening/closing, ventilation on/off, heating on/off, etc.) data fusion and interpretation is implemented within the monitoring system. The development will consist of • Small smart wireless and robust sensor cases • Sensors monitoring e.g. temperature, humidity, air velocity, strain and crack opening, acoustic emissions, vibration, inclination, ambient light, UV light and chemical attack • Built-in deterioration and material models • Built-in data pre-processing • Alarm functions to inform the responsible owner/restorer about changes of the object status Comparative tests will be conducted to validate the models as well as the monitoring data, which are acquired during several case studies. The results of the project will be summarized in a toolbox and a guideline, which will be disseminated at special trainings organized for restorers, owner of cultural heritage and public authorities.