Anti-interference speed detection methods and detectors thereof

Details Anti-interference speed detection methods and detectors thereof Anti-interference speed detection methods and detectors thereof

2007-04-03

2007-04-03

Tarcza, Thomas H. (Department: 3662)

Optics: measuring and testing

Velocity or velocity/height measuring

With light detector

C356S005010, C701S093000, C382S104000

Reexamination Certificate

active

11086062

ABSTRACT:
A speed detection method is implemented in a speed detector comprising a range finder. First, a specific number of distance measurement samples of an object are acquired during a period of time utilizing the range finder. The distance measurement samples are converted to M versions of the distance measurement samples respectively based on M velocities, wherein M is a positive integer. Each version of the distance measurement samples comprises reflected distance measurement laser pulses. Each reflected pulse corresponds to a measured distance and a received pulse order. A version of the distance measurement samples is determined, which comprises a distance range to which the highest number of reflected pulses corresponds. A speed of the object is calculated based on an assumed velocity to which the determined version corresponds.

REFERENCES:
patent: 5359404 (1994-10-01), Dunne
patent: 6466307 (2002-10-01), Chien et al.

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