Position detector for track mounted surveillance systems
US6189838A · kind A · utility
4Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 2, 1998 |
| Grant date | Feb 20, 2001 |
| Priority date | — |
| Expiry date | Jun 2, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B13/19623
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A mechanism for detecting the position of a carriage moveable along a track. The mechanism includes a wheel fixed to the carriage which rotates as the carriage moves along the track. A mark is disposed on a portion of the wheel. A detector is fixed to the carriage for sensing the mark as the wheel rotates and outputs a signal in response. A carriage processor receives the signal and determines the position of the carriage along the track.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.