Communications: directive radio wave systems and devices (e.g. – Return signal controls external device – Radar mounted on and controls land vehicle
Patent
1994-03-08
1995-12-26
Hellner, Mark
Communications: directive radio wave systems and devices (e.g.,
Return signal controls external device
Radar mounted on and controls land vehicle
36442401, 36442402, 364436, 342 71, G06F 1550
Patent
active
054791731
ABSTRACT:
An obstacle sensing apparatus for vehicles which enables efficient obstacle sensing and improves sensing precision. The apparatus comprises a section for predicting a deduced traveling-passage on which the vehicle will travel, based on a steering angle, a yaw rate and a velocity of the vehicle, a section having a CCD camera, for detecting a current traveling-passage on which the vehicle is currently moving, a scanning-type radar unit for sensing obstacles within a predetermined area, and a danger level judging section for judging danger levels of the sensed obstacles, based on the deduced traveling-passage and the current traveling-passage. The danger level judging section sets the danger level of the obstacle sensed within an area, where the deduced traveling-passage and the current traveling-passage overlap with each other, to the highest danger level; the obstacle sensed in an area within the current traveling-passage and without the deduced traveling-passage, to an intermediate danger level; the obstacle sensed in an area within the deduced traveling-passage and without the current traveling-passage, to a lower danger level; and the obstacle sensed in an area without the current and deduced traveling-passages, to the lowest danger level.
REFERENCES:
patent: 5172315 (1992-12-01), Asanuma et al.
patent: 5208750 (1993-05-01), Kurami et al.
patent: 5233527 (1993-08-01), Shinnosuke
patent: 5243524 (1993-09-01), Ishida et al.
patent: 5314037 (1994-05-01), Shaw et al.
patent: 5343206 (1994-08-01), Ansaldi et al.
Adachi Tomohiko
Okuda Ken-ichi
Yamamoto Yasunori
Yoshioka Tohru
Hellner Mark
Mazda Motor Corporation
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