Apparatus for the automatic counting of passengers
US4009389A · kind A · utility
26Cited by
8References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 19, 1975 |
| Grant date | Feb 22, 1977 |
| Priority date | — |
| Expiry date | Sep 19, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C9/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
There is provided apparatus for determining the number of passengers entering and/or leaving a collective passenger vehicle. The apparatus comprises means for projecting a pair of light-beams of invisible light across the passageway of said passengers and means for receiving said light-beams. Detecting means which operate in conjunction with the light-beam receiving means are adapted to detect the energized or unenergized state of the receiving means and in response thereto to feed information to a data registering or recording means, said information being indicative of the number of passengers passing through the light-beams.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.