Optical sensing system and system for stabilizing...

Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Aeronautical vehicle

Reexamination Certificate

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C701S004000, C701S223000

Reexamination Certificate

active

11085317

ABSTRACT:
In order to measure the movement of a vehicle, especially an aircraft, an imaging optical system2which is to be positioned on the vehicle is used to detect an image of the environment4, and an optoelectronic shift sensor3chip of the type comprising an inherent evaluation unit is used to measure any shift of the image from structures thereof. The shift sensor is equal or similar to the sensor used on an optical mouse. The sensor is positioned in such a way that infinite objects are focused. The measuring signal is evaluated to indicate movements and/or the position of the aircraft. The inventive system can also be used to measure distances e.g. in order to control the flight altitude. The invention further relates to methods for automatically controlling particularly a hovering flight by means of a control loop using optical flow measurement.

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