POSITIONING APPARATUS FOR EXCAVATING AND SIMILAR EQUIPMENT
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Accused Products
Abstract
The complex movements performed by the various components carrying a bucket that performs earth moving work are monitored by means of ultrasound devices relating lengths and angles obtained during a calibration step and instant measurements in a processing unit in order to output either a visual indication of the position of the bucket or signals for automatic control of a digging or other earth-moving operation.
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Citations
22 Claims
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1-10. -10. (canceled)
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11. An apparatus for use in controlling the position and movement of components in excavating and earth moving equipment, said components being moveable in relationship to each other and the ground, said apparatus comprising:
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ultrasound transmitters and receivers mounted on said components, wherein said transmitters and receivers are placed on said components of the excavating and earth moving equipment so that their geometrical relationships change dependent on the relative positions of the components, and that at least one ultrasound transmitter is transmitting intermittent bursts of ultrasound energy, and that the ultrasound receivers have a time window of reception after the burst of ultrasound energy, the received signals being transmitted to a processing unit for calculating the position of a predetermined component. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification