Method for updating in a wheeled vehicle steered by dead reckoni

Details Method for updating in a wheeled vehicle steered by dead reckoni Method for updating in a wheeled vehicle steered by dead reckoni

1981-10-01

1985-09-10

Chin, Gary

Boots, shoes, and leggings

364450, 180168, B62D 128

Patent

active

045410496

ABSTRACT:
In a wheeled vehicle steered by dead reckoning, which calculates its own position on the basis of distances determined by rolling-off measurement, the error in position determination will increase gradually and necessitate updating. A floor is provided with markings which are observed by a linear detector mounted transversely in the vehicle, and linear images are obtained. At least two different measurements are carried out of the position of a marking in relation to the vehicle, and the distance travelled by the vehicle between the measurements is measured. From these three measured distances, the angle between the vehicle and the marking can be determined. An additional marking forming an angle with the first marking makes it possible to determine the position in the direction of movement of the vehicle as well.

REFERENCES:
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patent: 4403291 (1983-09-01), Von Tomkewitsch
patent: 4424875 (1984-01-01), Yoshida

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