Method for identifying and interrogating the measured value of t

Details Method for identifying and interrogating the measured value of t Method for identifying and interrogating the measured value of t

1989-11-09

1991-01-15

Heyman, John S.

Boots, shoes, and leggings

377 20, 377 44, 324166, G01P 348, G01R 2302

Patent

active

049858599

ABSTRACT:
A method for identifying a measured value of a velocity or speed of an object where a measured value call-in can occur at any time. A chronological spacing of measuring pulses of a speed sensor is measured and a measured value is formed therefrom. The measurement is carried out until either a measured value call-in occurs, a maximum number of measuring pulses is registered, or a maximum measuring duration is exceeded. When no measuring pulse or only one measuring pulse is registered, a distinction is made in the formation of the measured value as to whether a measuring duration corresponding to a minimum velocity or minimum speed is upwardly or downwardly crossed. An initial counter reading is stored at every measuring start and at every first registered measured pulse. A final counter reading is stored at every further registered measuring pulse until either a measured value call-in occurs or the maximum measuring duration is exceeded. The time interval lying between the initial counter reading and the final counter reading forms the basis for the calculation of the measured value.

REFERENCES:
patent: 3567913 (1971-03-01), Webb
patent: 4485452 (1984-11-01), Cording et al.
patent: 4575865 (1986-03-01), Dackow
patent: 4584528 (1986-04-01), Ohmae et al.
patent: 4672556 (1987-06-01), Shepler
patent: 4794551 (1988-12-01), Yoshida
patent: 4839834 (1989-06-01), Omae et al.
IEEE Transactions on Industrial Electronics, vol. IE-30, (1983), Nov., No. 4-Chaudhuri et al., "Wide-Range Precision Speed Measurement with Adaptive Optimization Using a Microcomputer", pp. 369-373.

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