On-board vehicle control system and method for determining whether a value is within an area of interest for extraneous warning suppression
First Claim
1. An on-board warning system control method comprising:
- storing information representing a plurality of boundary points of a boundary that circumscribes an area of interest in which the boundary points are defined by two prescribed parameters;
obtaining via an on-board controller at least one condition point defined by current values of the prescribed parameters;
determining via the on-board controller a first boundary point of the boundary points that is closest to the condition point;
generating via the on-board controller geometric data representing a geometric relationship between the first boundary point, the condition point and a second boundary point of the boundary points, the geometric relationship including a first straight line connecting the first boundary point and the condition point, a second straight line connecting the second boundary point and the condition point and a third straight line connecting the first boundary point and the second boundary point;
calculating via the on-board controller reference point data representing a reference point based on the geometric data;
determining via the on-board controller coordinate condition data based on an angle between a predetermined direction and a reference line connecting the first boundary point and the reference point; and
determining via the on-board controller whether a warning condition exists by determining whether the condition point lies within the area of interest based on a comparison between coordinates of the condition point and the coordinate condition data.
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Accused Products
Abstract
An on-board vehicle control system and method employ a storage device that stores information representing a plurality of boundary points of a boundary circumscribing an area of interest in which the boundary points are defined by two prescribed parameters, and a controller that obtains at least one condition point defined by current values of the prescribed parameters, determines a first boundary point of the boundary points that is closest to the condition point, and generates geometric data representing a geometric relationship between the first boundary point, the condition point and a second boundary point of the boundary points. The controller performs further calculations taking into account the geometric data to generate coordinate condition data, and determines whether a warning condition exists by determining whether the condition point lies within the area of interest based on a comparison between coordinates of the condition point and the coordinate condition data.
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Citations
20 Claims
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1. An on-board warning system control method comprising:
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storing information representing a plurality of boundary points of a boundary that circumscribes an area of interest in which the boundary points are defined by two prescribed parameters; obtaining via an on-board controller at least one condition point defined by current values of the prescribed parameters; determining via the on-board controller a first boundary point of the boundary points that is closest to the condition point; generating via the on-board controller geometric data representing a geometric relationship between the first boundary point, the condition point and a second boundary point of the boundary points, the geometric relationship including a first straight line connecting the first boundary point and the condition point, a second straight line connecting the second boundary point and the condition point and a third straight line connecting the first boundary point and the second boundary point; calculating via the on-board controller reference point data representing a reference point based on the geometric data; determining via the on-board controller coordinate condition data based on an angle between a predetermined direction and a reference line connecting the first boundary point and the reference point; and determining via the on-board controller whether a warning condition exists by determining whether the condition point lies within the area of interest based on a comparison between coordinates of the condition point and the coordinate condition data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An on-board vehicle control system comprising:
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a storage device configured to store information representing a plurality of boundary points of a boundary that circumscribes an area of interest in which the boundary points are defined by two prescribed parameters; and a controller configured to obtain at least one condition point defined by current values of the prescribed parameters, determine a first boundary point of the boundary points that is closest to the condition point, generate geometric data representing a geometric relationship between the first boundary point, the condition point and a second boundary point of the boundary points, with the geometric relationship including a first straight line connecting the first boundary point and the condition point, a second straight line connecting the second boundary point and the condition point and a third straight line connecting the first boundary point and the second boundary point, calculate reference point data representing a reference point based on the geometric data, determine coordinate condition data based on an angle between a predetermined direction and a reference line connecting the first boundary point and the reference point, and determine whether a warning condition exists by determining whether the condition point lies within the area of interest based on a comparison between coordinates of the condition point and the coordinate condition data. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification