A people counting system including: a first people counting data collection unit configured to store a first set of people count data; and a second people counting data collection unit configured to store a second set of people count data. The first people counting data collection unit is configured...http://www.google.es/patents/US7134595?utm_source=gb-gplus-sharePatente US7134595 - People counting system for facility-wide reporting
People counting system for facility-wide reporting