In the concept phase, possible solutions were discussed intensively with the users.
We developed an attractive smart Office platform that records and analyses the utilisation of desks and meeting rooms. Too little attention was paid to the IT's security requirements, or these were not known at the time. It only became apparent during later implementation that close IT coordination is absolutely necessary, especially for IoT and cloud applications. 

An indoor LoRaWAN network was set up across all floors to detect the presence sensors on the desks and meeting boxes. This wireless network transmits data over long distances in an energy-efficient manner. To ensure the security of the network, the data connection of the building automation system is galvanically isolated.