Object detection apparatus and object detection method
First Claim
1. An object detection apparatus which is mounted in a vehicle and detects an object in a surrounding area of the vehicle, the apparatus comprising:
- a radar device which detects an object in the surrounding area of the vehicle as a dot;
a processing part which calculates, from a result of the detection as the dot by the radar device with respect to a target which is the object detected by the radar device, information indicating a relative position of the target relative to the vehicle, or information indicating the relative position of the target relative to the vehicle and at least one of a relative distance and a relative speed of the target relative to the vehicle, as target information;
a traveling direction prediction part which predicts a traveling direction of the vehicle, and predicts a traveling direction of the target based on the target information calculated by the processing part;
a determination part which determines, from the target information calculated by the processing part and the traveling direction of the target predicted by the traveling direction prediction part, whether a condition (i) that the relative position of the target indicated by the target information is within a set area which is set to a side strip at a lateral side of the vehicle and a condition (ii) that the traveling direction of the target predicted by the traveling direction prediction part is not a direction toward where the vehicle is heading are satisfied for each target, and which determines that the target is a movable body which does not collide with the vehicle when the conditions are satisfied; and
a collision determination part which determines whether the target, that has been determined by the determination part as not being the movable body which does not collide with the vehicle, is likely to collide with the vehicle, whereinthe determination part accumulates, each time the determination part has determined that the conditions are satisfied for the target, the number of times when the determination part has determined that the conditions are satisfied for the target and determines, when the accumulated number has reached a predetermined number, that the target is the movable body which does not collide with the vehicle,the travelling direction prediction part predicts the traveling direction of the target only when a predetermined number of chronological pieces of target information of the target are stored in a target information memory, andthe processing part, the travelling direction prediction part, the determination part, and the collision determination part are executed by a computer.
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Accused Products
Abstract
Provided is an object detection apparatus and an object detecting method for, with respect to an object detected by a radar, determining whether the object is an automobile and performing an appropriate collision determination based on a determination result. The apparatus comprises a radar device 1 which detects a target in a surrounding area of an own vehicle VM; a target processing section 21 which calculates, with respect to the detected target, information containing at least two of information indicating a position of presence, information indicating a moving direction, and information indicating a moving speed, of the target as target information; and a target determination section 23 which determines, based on the calculated target information, whether a target object is a bicycle depending on whether the target satisfies a predetermined condition, and which determines a risk of collision between the vehicle VM and the target object.
43 Citations
6 Claims
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1. An object detection apparatus which is mounted in a vehicle and detects an object in a surrounding area of the vehicle, the apparatus comprising:
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a radar device which detects an object in the surrounding area of the vehicle as a dot; a processing part which calculates, from a result of the detection as the dot by the radar device with respect to a target which is the object detected by the radar device, information indicating a relative position of the target relative to the vehicle, or information indicating the relative position of the target relative to the vehicle and at least one of a relative distance and a relative speed of the target relative to the vehicle, as target information; a traveling direction prediction part which predicts a traveling direction of the vehicle, and predicts a traveling direction of the target based on the target information calculated by the processing part; a determination part which determines, from the target information calculated by the processing part and the traveling direction of the target predicted by the traveling direction prediction part, whether a condition (i) that the relative position of the target indicated by the target information is within a set area which is set to a side strip at a lateral side of the vehicle and a condition (ii) that the traveling direction of the target predicted by the traveling direction prediction part is not a direction toward where the vehicle is heading are satisfied for each target, and which determines that the target is a movable body which does not collide with the vehicle when the conditions are satisfied; and a collision determination part which determines whether the target, that has been determined by the determination part as not being the movable body which does not collide with the vehicle, is likely to collide with the vehicle, wherein the determination part accumulates, each time the determination part has determined that the conditions are satisfied for the target, the number of times when the determination part has determined that the conditions are satisfied for the target and determines, when the accumulated number has reached a predetermined number, that the target is the movable body which does not collide with the vehicle, the travelling direction prediction part predicts the traveling direction of the target only when a predetermined number of chronological pieces of target information of the target are stored in a target information memory, and the processing part, the travelling direction prediction part, the determination part, and the collision determination part are executed by a computer. - View Dependent Claims (2, 3, 4, 5)
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6. A non-transitory computer readable medium storing instructions which, when executed by a computer, cause the computer to perform an object detection method which is provided in a vehicle and detects an object in a surrounding area of the vehicle, the method comprising:
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a detection step of detecting an object in the surrounding area of the vehicle by using a radar device as a dot; a processing step of calculating, from a result of the detection as the dot by the radar device with respect to a target which is the object detected in the detection step, information indicating a relative position of the target relative to the vehicle, or information indicating the relative position of the target relative to the vehicle and at least one of a relative distance and a relative speed of the target relative to the vehicle as target information; a traveling direction prediction step of predicting a traveling direction of the vehicle, and predicting a traveling direction of the target based on the target information calculated by the processing part; a determination step of determining, from the target information calculated in the processing step and the traveling direction of the target predicted in the traveling direction prediction step, whether a condition (i) that the relative position of the object indicated by the target information is within a set area which is set to a side strip at a lateral side of the vehicle and a condition (ii) that the traveling direction of the target predicted in the traveling direction prediction step is not a direction toward where the vehicle is heading are satisfied for each target, and of determining that the target is a moveable body which does not collide with the vehicle when the conditions are satisfied; and a collision determining step of determining whether the target, that has been determined in the determining step as not being the movable body which does not collide with the vehicle, is likely to collide with the vehicle, wherein the determination step includes accumulating, each time it has been determined that the conditions are satisfied for the target, the number of times when it has been determined that the conditions are satisfied for the target and determining, when the accumulated number has reached a predetermined number, that the target is the movable body which does not collide with the vehicle, and the traveling direction prediction step includes predicting the traveling direction of the target only when a predetermined number of chronological pieces of target information of the target are stored in a target information memory.
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Specification