Less Wires with Wireless – en förstudie om trådlös kommunikation inom fastighetsautomation

Within building automation there has long been a desire to avoid unnecessary wires to all actuators and sensors that are allocated in a building. Window contacts, infrared detectors and room thermostats all need both power and data cables to work properly. It is easy to realise that this may be both hard and expensive and that in many environments the aesthetics is a major factor. The authors wrote this master thesis for the department of Industrial Electrical Engineering and Automation, IEA, within the Faculty of Engineering of Lund University and on location at AB Regin in Landskrona. The goal was to do a feasibility study on the different wireless techniques on the market today and which of these is relevant to be implemented within building automation. Focus will be put on energy conserving of the sensors and actuators, and robustness of the network. To make sure the work does not take to much time, focus will be put on the actuators and sensors that are found within the room, i.e. the ones that are included in so called zone control. To get an understanding on how a zone control system works and its advantages and disadvantages, a small but fully functional zone control system was built with the chosen technique and relevant products from Regin. The chosen technique was EnOcean and the main reasons for this were its energy conservation characteristics and the simplicity of the protocol. The result of the work is a recommendation to Regin on how to proceed with wireless zone control in the future. Tree fully functional prototypes were also constructed. For a longer summery in English please refer to appendix A