Detection device
First Claim
1. A detection device for detecting an obstacle within a target region by emitting a laser beam to the target region, comprising:
- target region setting means for setting the target region;
scan trajectory setting means for setting a scan trajectory of the laser beam within the target region; and
irradiation pattern setting means for setting a pattern of an irradiation position of the laser beam within the target region based on a signal related to a moving state of the detection device or a moving object on which the detection device is mounted.
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Accused Products
Abstract
An irradiation pattern of a laser beam within a target region is controlled based on external signals each related to a driving direction and a driving speed, a result obtained by detection of an obstacle, and signals related to distances to the obstacle. For example, at the time of a right turn, an irradiation pattern for increasing irradiation frequency on a portion shifted in a right-turn direction from a center axis in a driving direction is set. At the time of high-speed driving, an irradiation pattern for increasing irradiation frequency on a center portion of a forward region in the driving direction is set. When the obstacle is detected and a distance to the obstacle is shorter than a threshold distance, an irradiation pattern for increasing irradiation frequency in the vicinity of the obstacle is set. Detection of the obstacle and monitoring of a state thereof are adequately and smoothly performed at the time of changing of the driving direction, the time of high-speed driving, and the time of detection of the obstacle.
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Citations
16 Claims
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1. A detection device for detecting an obstacle within a target region by emitting a laser beam to the target region, comprising:
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target region setting means for setting the target region;
scan trajectory setting means for setting a scan trajectory of the laser beam within the target region; and
irradiation pattern setting means for setting a pattern of an irradiation position of the laser beam within the target region based on a signal related to a moving state of the detection device or a moving object on which the detection device is mounted. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A detection device for detecting an obstacle within a target region by emitting a laser beam to the target region, comprising:
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a beam source for emitting a laser beam;
an actuator for changing an irradiation direction of the laser beam;
a target region setting circuit for setting the target region by controlling the actuator;
a scan trajectory setting circuit for setting a scan trajectory of the laser beam within the target region by controlling the actuator; and
an irradiation pattern setting circuit for setting a pattern of an irradiation position of the laser beam within the target region based on a signal related to a moving state of the detection device or a moving object on which the detection device is mounted and for controlling irradiation timing of the laser beam within the target region based on the pattern set. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification