Vehicle remote guidance with path control

Details Vehicle remote guidance with path control Vehicle remote guidance with path control

1991-04-11

1992-10-13

Chin, Gary

Boots, shoes, and leggings

358103, 180168, G06F 1550

Patent

active

051556839

ABSTRACT:
In a remotely piloted surface vehicle a television camera is used to send images to a screen on the operator's station. A computer displays the vehicle's intended path on the screen. The path appears as a computer-generated line superimposed on the image of the vehicle's environment, like a stripe painted on the ground. The operator can change or advance the path on the screen with a cursor control. A computer picks certain discrete screen points along the line and maps those screen positions onto ground positions called "waypoints". These are sent to the vehicle's guidance system to direct the vehicle along a path through the waypoints. The transform which maps the screen path onto the ground path depends on the camera orientation and lens. The transform parameters can be adjusted as the camera zooms, pans and tilts. Each time the screen is refreshed, the path line for that screen is calculated by the computer from the ground path, to present the ground path correctly in the new screen. The operator can extend or modify the path at will. The system is especially adapted to use in cases where a narrow bandwidth of the radio link between the camera and the station limits the screen refresh rate. The system maximizes the possible speed of the vehicle by presenting the path information in a format quickly grasped by the operator.

REFERENCES:
patent: 4405943 (1983-09-01), Kanaly
patent: 4855822 (1989-08-01), Narendra et al.
patent: 4926346 (1990-05-01), Yokoyama

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