Data processing: vehicles – navigation – and relative location – Relative location
Patent
1996-05-22
1998-09-08
Nguyen, Tan Q.
Data processing: vehicles, navigation, and relative location
Relative location
701301, 701207, 701 96, 340903, 340435, 342 70, G01S 1360
Patent
active
058060197
ABSTRACT:
In a vehicle including a distance sensor capable of detecting longitudinal and lateral distances from a subject vehicle to an object, the following steps are carried out: a step of enclosing some of the detection data, detected by the distance sensor, which exist within a first predetermined distance from one another, into a block having a block label assigned thereto, a step of comparing last and current values of the center of gravity position of each block with each other for every same block label to calculate a relative speed of each block relative to the subject vehicle, a step of determining object data by determining that some of the blocks, which exist within a second predetermined distance from one another and a difference between the relative speeds of which is within a preset value, are the same object, and a step of averaging lateral relative speeds of the blocks in the same object to determine a lateral relative speed of the object relative to the subject vehicle. In this manner, objects whose relative motions relative to the subject vehicle are different from one another are correctly detected, and lateral relative speed of the objects relative to the subject vehicle are accurately detected.
REFERENCES:
patent: 5291207 (1994-03-01), Kikuchi et al.
patent: 5600561 (1997-02-01), Okamura
Honda Giken Kogyo Kabushiki Kaisha
Nguyen Tan Q.
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