Data processing: vehicles – navigation – and relative location – Navigation – Determination of along-track or cross-track deviations
Patent
1996-07-23
1998-11-03
Mojica, Lissi
Data processing: vehicles, navigation, and relative location
Navigation
Determination of along-track or cross-track deviations
701210, 342 71, G01C 2110, G01S 108, G06G 778
Patent
active
058324070
ABSTRACT:
A vehicle surrounding monitoring device including: a monitoring device for detecting objects present at a surrounding of a vehicle and outputting positions of the objects defined by a predetermined detection coordinate system; a coordinates transforming device having a calculation coordinate system in which a position of the monitoring device is an original point, a progressing direction of the vehicle is a first coordinate axis and an axis orthogonal to the first coordinate axis is a second coordinate axis for transforming the positions of the objects into positions defined by the calculation coordinate system; a vehicle speed detecting device for detecting a vehicle speed of the vehicle; a stationary object sampling means for sampling a plurality of stationary objects among the objects based on the vehicle speed; and an error detecting device for detecting a deviation of an optical axis of the monitoring device based on the vehicle speed, components of the first coordinate axis of the plurality of stationary objects sampled by the stationary object sampling device and amounts of change in components of the second coordinate axis of the plurality of stationary objects in a predetermined period of time.
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Akasu Masahira
Kai Koichi
Mitsubishi Denki & Kabushiki Kaisha
Mojica Lissi
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