Occupancy monitor
First Claim
1. An occupancy monitoring system for monitoring occupancy at a plurality of locations, comprising respective detector means at said locations for detecting occupancy occurrences including means generating occupancy detection signals at the respective locations, recording means to effect recording on a storage medium of detection signals for said location, transmitting means coupled between said detector means and said recording means for feeding the respective occupancy detection signals to said recording means to effect recording on said storage medium, clock means, means connecting said clock means to said transmitting means for recording the times of said detection signals on said storage medium concurrently with the occupancy signals, wherein each said occupancy signal generator means comprises a transistor provided with energizing circuit means including a base return circuit and occupancy switch means connected in said base return circuit, wherein said recording means is of a type providing identification pulses, means to verify the number of such identification pulses, and means to enable the recording means in accordance with such verification.
0 Assignments
0 Petitions
Accused Products
Abstract
Occupancy is monitored at a plurality of locations, such as stores, seats or chairs, hotel beds or rooms, doorway passages, service establishments, or the like, and a record is provided of the time of occupancy. The system has respective occupancy-controlled switches in electric circuits providing occupancy signals at the respective locations. These signals are fed via a transmitting circuit, which suitably selects the recorder channels, to a multi-trace recorder, and in conjunction with a clock, provides a timed record of occupancy on the respective recorder traces associated with the monitored locations. The data may be printed on a moving paper recorder strip or may be in the form of magnetic recordings on the magnetic tape of a tape recorder. Timed recordings of fault disturbances may be similarly obtained.
35 Citations
8 Claims
- 1. An occupancy monitoring system for monitoring occupancy at a plurality of locations, comprising respective detector means at said locations for detecting occupancy occurrences including means generating occupancy detection signals at the respective locations, recording means to effect recording on a storage medium of detection signals for said location, transmitting means coupled between said detector means and said recording means for feeding the respective occupancy detection signals to said recording means to effect recording on said storage medium, clock means, means connecting said clock means to said transmitting means for recording the times of said detection signals on said storage medium concurrently with the occupancy signals, wherein each said occupancy signal generator means comprises a transistor provided with energizing circuit means including a base return circuit and occupancy switch means connected in said base return circuit, wherein said recording means is of a type providing identification pulses, means to verify the number of such identification pulses, and means to enable the recording means in accordance with such verification.
Specification