Abstract: A system (100) for and a method of monitoring water drainage is provided. The system for monitoring water drainage comprising a sensor interface (118), a storage (120), an atmospheric precipitation unit (130) and a signal generator (140). The sensor detects whether water is present at an associated surface (112) and generates a sensor signal (111). The storage stores water drainage information that relates to the associated surface and comprises characteristics of water presence on the associated surface in cases of atmospheric precipitation. The atmospheric precipitation unit receives recent atmospheric precipitation information.

Abstract: A system 100 for commissioning a lighting device by a wearable device 102 when installing the lighting device is disclosed. The system 100 comprises the wearable device 102 comprising a detection unit 104 arranged for detecting contextual information of the wearable device 102, the contextual information being at least one of an orientation and/or a movement of the wearable device 102. The system 100 further comprises a receiver 106 arranged for receiving an identifier of the lighting device 120. The system 100 further comprises a processor 108 arranged for determining at least one installation characteristic of the lighting device 120 based on the detected contextual information of the wearable device 102, and for linking the at least one installation characteristic to the identifier. The system 100 also comprises a memory 110 arranged for storing the at least one installation characteristic and the identifier.