In a third exemplary embodiment of the present invention, the coverage analyzer 102 may use the map information for sensor coverage analysis and sensor identification. In this third exemplary embodiment, there are multiple compartments in the surveillance field and each compartment has one or more cameras and/or microphones. The sound can be detected by not only the microphone in one of the compartments but also by microphones in nearby compartments. Therefore, the system is required to identify the event location and be capable of selecting the camera in the compartment where the event occurs.

Referring to FIG. 13A and FIG. 13B, one of the plurality of sensors is a microphone. A sensor data receiver 100 receives the event related data from the microphone including a direction of an audio input. The coverage analyzer 102 uses this direction information from multiple microphones. If the sound came from inside a compartment, then the system selects the camera in the compartment. In the FIG. 13A case, the system selects the camera 42 because the microphone 40 detected that the sound was coming from inside the compartment containing the camera 42. Furthermore, the other microphones 30, 50 and 60 detected the sound direction which can be interpreted by the coverage analyzer 102 as the sound comes from the compartment monitored by the camera 42.