On-vehicle radar device
First Claim
1. An on-vehicle radar device for being mounted on a vehicle, comprising:
- a transmission section for transmitting a radio wave to an object;
a receive section for receiving said radio wave reflected by said object; and
a processing section for dividing a range, where an object is detected by receiving said radio wave, into three or more of a plurality of areas, setting a threshold of an intensity of said radio wave received for each of said plurality of areas, and judging existence of an object by comparing the intensity of said radio wave and said threshold for each areas, whereinsaid processing section sets a second threshold of a second angle area in said detection range to be lower than a first and a third threshold of a first angle area and a third angle area, when a traveling velocity supplied from a velocity detection device for detecting the velocity of said vehicle is a predetermined velocity or more in a status where said vehicle is automatically adjusting the velocity according to the traveling velocity of a vehicle in front.
3 Assignments
0 Petitions
Accused Products
Abstract
An on-vehicle radar device has a transmission section for transmitting a radio wave to an object, a receive section for receiving the radio wave reflected by the object, and a processing section for dividing an object detection range into three or more of a plurality of areas, setting a threshold of an intensity of the radio wave received for each of the plurality of areas, and judging the existence of an object by comparing the intensity of the radio wave and the threshold. This processing section sets, based on an auto-cruise control mode or pre-crash mode of the vehicle, a threshold of a part of an area in the object detection range to be lower than the threshold of the other areas, or changes the threshold of the detection area according to the object detection status.
44 Citations
4 Claims
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1. An on-vehicle radar device for being mounted on a vehicle, comprising:
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a transmission section for transmitting a radio wave to an object; a receive section for receiving said radio wave reflected by said object; and a processing section for dividing a range, where an object is detected by receiving said radio wave, into three or more of a plurality of areas, setting a threshold of an intensity of said radio wave received for each of said plurality of areas, and judging existence of an object by comparing the intensity of said radio wave and said threshold for each areas, wherein said processing section sets a second threshold of a second angle area in said detection range to be lower than a first and a third threshold of a first angle area and a third angle area, when a traveling velocity supplied from a velocity detection device for detecting the velocity of said vehicle is a predetermined velocity or more in a status where said vehicle is automatically adjusting the velocity according to the traveling velocity of a vehicle in front.
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2. An on-vehicle radar device for being mounted on a vehicle, comprising:
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a transmission section for transmitting a radio wave to an object; a receive section for receiving said radio wave reflected by said object; and a processing section for dividing a range where an object is detected by receiving said radio wave into three or more of a plurality of areas, setting a threshold of an intensity of said radio wave received for each of said plurality of areas, and judging existence of an object by comparing the intensity of said radio and said threshold for each area, wherein said processing section sets a threshold of one area out of a first angle area and a third angle area in the detection area of the object to be higher than a threshold of another area out of the first angle area and the third angle area according to information on road shape supplied from a road shape recognition device for recognizing a shape of a road on which the vehicle is traveling in a status where said vehicle detects an object in advance and avoids the object.
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3. An on-vehicle radar device for being mounted on a vehicle, comprising:
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a transmission section for transmitting a radio wave to an object; a receive section for receiving said radio wave reflected by said object; and a processing section for dividing a range where an object is detected by receiving said radio wave into three or more of a plurality of areas, setting a threshold of an intensity of said radio wave received for each of said plurality of areas, and judging existence of an object by comparing the intensity of said radio wave and said threshold for each area, wherein said processing section decreases the threshold of an area where said object existing in said area is moving in a status where said vehicle is automatically adjusting the velocity according to the traveling velocity of a vehicle in front.
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4. An on-vehicle radar device for being mounted on a vehicle, comprising:
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a transmission section for transmitting a radio wave to an object; a receive section for receiving said radio wave reflected by said object; and a processing section for dividing a range where an object is detected by receiving said radio wave into three or more of a plurality of areas, setting a threshold of an intensity of said radio wave received for each of said plurality of areas, and judging existence of an object by comparing the intensity of said radio wave and said threshold for each area, wherein said processing section decreases the threshold of an area where an object existing in said area is stationary in a status where said vehicle detects an obstacle in advance and avoids the obstacle.
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Specification