1. A commissioning device for commissioning building technology devices installed on and/or in buildings, the commissioning device comprising:a mobile handheld communication terminal;
at least one optical sensor on the mobile handheld communication terminal configured to obtain spatial images containing spatial information of three dimensions and to receive optical communication signals emitted from a plurality of building technology devices, at least one said building technology device comprising an operating device for a luminaire, and the at least one optical sensor comprising a 3D camera having a first optical lens and a second optical lens with a separate image sensor element for each lens, wherein the second optical lens observes the same area as the first optical lens from a different angle;
a positioning sensor; and
at least one processing unit configured to process received optical communication signals, to process the spatial images and to evaluate the output from the positioning sensor to determine an absolute position and an orientation of the commissioning device,
wherein the at least one processing unit is configured to compute a spatial position of the building technology device by processing the produced spatial images and by evaluating the spatial information and the determined position and orientation of the commissioning device, wherein the at least one processing unit is configured to process the optical communication signals received from the building technology device in order to obtain information identifying the building technology device, and wherein the at least one processing unit is configured to associate the computed spatial position of the building technology device with the processed optical communication signals in order to associate a physical position of the installed business technology device with a logical network and/or lighting bus address; and
further wherein the at least one processing unit further associates the associated information with a location in a digital building plan, stored in a storage unit functionally connected to the at least one processing unit.