IMAGE-CAPTURING DEVICE, IN PARTICULAR PERSON-COUNTING DEVICE HAVING A HOUSING WHICH IS TRANSPARENT IN THE INFRARED RANGE AND NONTRANSPARENT IN THE OPTICALLY VISIBLE RANGE

摘要

The method involves determining current number of persons (P) physically present in sub-area of the location areas. A portion of the identifiers (ID) carried by the respective authorized persons (IP) are read by radio frequency identification (RFID) transponders (4), so that current number of recognized identifiers is determined. The determined two numbers are considered as an indicator to assess the security situation in the building. An independent claim is included for system for evaluating security situation in building.