GB1252253A - - Google Patents
Info
- Publication number
- GB1252253A GB1252253A GB1252253DA GB1252253A GB 1252253 A GB1252253 A GB 1252253A GB 1252253D A GB1252253D A GB 1252253DA GB 1252253 A GB1252253 A GB 1252253A
- Authority
- GB
- United Kingdom
- Prior art keywords
- infra
- passengers
- beams
- counting
- broken
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
- G06M1/00—Design features of general application
- G06M1/08—Design features of general application for actuating the drive
- G06M1/10—Design features of general application for actuating the drive by electric or magnetic means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Time Recorders, Dirve Recorders, Access Control (AREA)
- Passenger Equipment (AREA)
Abstract
1,252,253. Counting passengers. SMITHS INDUSTRIES Ltd. 12 Nov., 1968 [17 Oct., 1967], No. 47306/67. Heading G4D. Apparatus for counting persons passing a check point comprises two vertically aligned spaced light or infra-red beams which must be broken simultaneously to stop the counter. As applied to a device for indicating the number of people on the upper deck of a bus, two vertical pairs of infra-red sources 10, 11 and 12, 13 and associated detectors are arranged in staggered relationship so that the first or second pair. of beams are broken first according to whether a passenger is ascending or descending. As described in Specification 1,251,371 a reversible binary counter is stepped accordingly. A decoding matrix feeds to the driver a read-out of the number of passengers, and when the number of vacant seats is small an appropriate display is given at the foot of the stairs.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4730667 | 1967-10-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1252253A true GB1252253A (en) | 1971-11-03 |
Family
ID=10444476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1252253D Expired GB1252253A (en) | 1967-10-17 | 1967-10-17 |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1252253A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1988000740A1 (en) * | 1986-07-15 | 1988-01-28 | Koelsch Raphael | Installation for determining the number and the direction of persons staying in a monitored room or pass-through |
-
1967
- 1967-10-17 GB GB1252253D patent/GB1252253A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1988000740A1 (en) * | 1986-07-15 | 1988-01-28 | Koelsch Raphael | Installation for determining the number and the direction of persons staying in a monitored room or pass-through |
| US4847485A (en) * | 1986-07-15 | 1989-07-11 | Raphael Koelsch | Arrangement for determining the number of persons and a direction within a space to be monitored or a pass-through |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |