Bicycle detector with improved detection using signature analysis
US8779942B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 23, 2012 |
| Grant date | Jul 15, 2014 |
| Priority date | — |
| Expiry date | Feb 8, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08G1/015
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A vehicle detector detects bicycles and discriminates between a bicycle and a motorized vehicle using a specific signature analysis technique when operated in the bicycle detect mode and the bicycle only detect mode. The signature analysis technique employs two sets of rules: one set for a bicycle which produces a signature having at least two peaks and two valleys when passing over a loop connected to the vehicle detector; the other for a bicycle which produces a signature having two peaks and only one valley when passing over a marginal side region of a loop connected to the vehicle detector. Peak and valley searches are conducted sequentially, with a peak search being conducted first upon start-up.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.