Speed monitoring device

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United States of America Patent

PATENT NO 9829500
APP PUB NO 20130096868A1
SERIAL NO

13652876

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Abstract

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There is provided a speed monitoring device which can use a low resolution position sensor and provide a high speed response without false detection. The speed monitoring device stores, in a memory unit, a permitted margin PM, a comparison distance VC which is a maximum movement distance permitted for a moving element within one cycle period, and positional data P(t−nT) (n is a natural number equal to or less than M) of the moving element obtained from the present time t to M cycles ago. During speed determination, whether |P(t)−P(t−nT)|>VC*n+PM holds true is determined for every integer n from 1 to M. When the inequality holds true, it is determined that the speed exceeds the speed limit.

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Patent Owner(s)

Patent OwnerAddress
OKUMA CORPORATION5-25-1 SHIMO-OGUCHI OGUCHI-CHO NIWA-GUN AICHI

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hayashi, Yasukazu Aichi, JP 33 306

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