Traffic scanning LIDAR
First Claim
1. A system for determining the position and speed of objects, the system comprising:
- a beam source operable to generate a beam;
a transmit reflection device operable to reflect the beam at the objects, the transmit reflection device including a plurality of transmit faces, at least a portion of the transmit faces oriented at a different angle and operable to reflect the beam at a different height, such that the beam reflection off each transmit face creates a sweep and a portion of each sweep reflected from the first transmit face to the last transmit face overlaps the sweeps adjacent thereto;
a beam receiver operable to detect the beam;
a receive reflection device including a plurality of receive faces, at least a portion of the receive faces oriented at a different angle and operable to focus the beam reflected from objects at different heights onto the beam receiver; and
a controller operable to determine the position of the objects over time and calculate the speed of the objects based on a change in the position of the objects.
7 Assignments
0 Petitions
Accused Products
Abstract
A system for determining the speed and position of objects comprises a beam source, a transmit reflection device, a beam receiver, a receive reflection device, and a controller. The beam source may generate a beam. The transmit reflection device may reflect the beam at the objects and may include a plurality of transmit faces with each transmit face oriented at a different angle and operable to reflect the beam at a different height. The beam receiver may detect the beam. The receive reflection device may include a plurality of receive faces with each receive face oriented at a different angle and operable to focus the beam reflected from objects at different heights onto the beam receiver. The controller may determine the position of the objects over time and calculate the speed of the objects based on a change in the position of the objects.
61 Citations
33 Claims
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1. A system for determining the position and speed of objects, the system comprising:
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a beam source operable to generate a beam; a transmit reflection device operable to reflect the beam at the objects, the transmit reflection device including a plurality of transmit faces, at least a portion of the transmit faces oriented at a different angle and operable to reflect the beam at a different height, such that the beam reflection off each transmit face creates a sweep and a portion of each sweep reflected from the first transmit face to the last transmit face overlaps the sweeps adjacent thereto; a beam receiver operable to detect the beam; a receive reflection device including a plurality of receive faces, at least a portion of the receive faces oriented at a different angle and operable to focus the beam reflected from objects at different heights onto the beam receiver; and a controller operable to determine the position of the objects over time and calculate the speed of the objects based on a change in the position of the objects. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A system for determining the position and speed of objects, the system comprising:
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a beam source operable to generate a beam; a transmit reflection device operable to reflect the beam at the objects, the transmit reflection device including; a transmit base, a transmit upper stage spaced apart from the transmit base, and a plurality of transmit faces coupled to the transmit base and the transmit upper stage and positioned in a circle therebetween, at least a portion of the transmit faces oriented at a different angle and operable to reflect the beam at a different height; a beam receiver operable to detect the beam; a receive reflection device including; a receive base, a receive upper stage spaced apart from the receive base, and a plurality of receive faces coupled to the receive base and the receive upper stage and positioned in a circle therebetween, at least a portion of the receive faces oriented at a different angle and including an outer surface with a concave partial circular paraboloid shape operable to focus the beam reflected from objects at different heights onto the beam receiver; and a controller operable to determine the position of the objects over time and calculate the speed of the objects based on a change in the position of the objects. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A transceiving reflection device for use with a light detection and ranging system, the device comprising:
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a transmit reflection device operable to reflect a beam from a beam source into a space in which objects may be present, the transmit reflection device including; a transmit base, a transmit upper stage spaced apart from the transmit base, and a plurality of transmit faces positioned in a circle between the transmit base and the transmit upper stage, the transmit faces oriented at consecutively varying angles from a first transmit face to a last transmit face and operable to reflect the beam at consecutively varying heights; and a receive reflection device operable to focus the beam onto a beam receiver, the receive reflection device including; a receive base coupled to the transmit base, a receive upper stage spaced apart from the receive base, and a plurality of receive faces positioned in a circle between the receive base and the receive upper stage, the receive faces oriented at consecutively varying angles from a first receive face to a last receive face and operable to focus the beam reflected from objects at different heights onto the beam receiver. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23)
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24. A system for determining the position and speed of objects, the system comprising:
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a beam source operable to generate a beam; a transmit device operable to scan the beam at the objects through a known angle in the horizontal direction and a known angle in the vertical direction to create a plurality of horizontally oriented sweeps such that a portion of each sweep overlaps the sweeps adjacent thereto; a beam receiver operable to detect the beam; a receive device operable to focus the beam reflected from objects onto the beam receiver; and a controller operable to determine the position of the objects over time and calculate the speed of the objects based on a change in the position of the objects. - View Dependent Claims (25, 26, 27, 28, 29, 30)
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31. A system for determining the position and speed of objects, the system comprising:
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a beam source operable to generate a beam; a transmit reflection device operable to reflect the beam at the objects, the transmit reflection device including a plurality of transmit faces positioned adjacent one another in a first circular formation, the transmit faces oriented at consecutively varying angles from a first transmit face to a last transmit face and operable to reflect the beam at consecutively varying heights; a beam receiver operable to detect the beam; a receive reflection device opposing the transmit reflection device and including a plurality of receive faces equivalent in number to the transmit faces and positioned adjacent one another in a second circular formation, the receive faces oriented at consecutively varying angles from a first receive face to a last receive face and operable to focus the beam reflected from objects at different heights onto the beam receiver; and a controller operable to determine the position of the objects over time and calculate the speed of the objects based on a change in the position of the objects. - View Dependent Claims (32, 33)
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Specification