A security camera system includes a base unit and sensor modules for generating image data. The base unit includes several mounting sockets arranged at different elevational and azimuthal directions around the base unit, and the sensor modules attach, for example, magnetically, to the mounting sockets. The security camera system is capable of automatic detection of the location of the sensor modules, as the identification information for the mounting sockets to which the sensor modules are attached are identified by image analytics. A reference image depicting the security camera system or an area surrounding the security camera system is analyzed and the positions of the sensor modules are determined based on the reference image. In the latter example, the reference image includes markers designating points of reference visible to the sensor modules and is compared to image data generated by the sensor modules.