System and method for tracking vehicles in parking structures and intersections
First Claim
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1. A vehicle traffic control system, comprising:
- an emitter configured to emit electromagnetic radiation into a detection area;
a detector configured to detect retro-reflected electromagnetic radiation resulting from retro-reflection of the emitted electromagnetic radiation from retro-reflective markers within the detection area;
control circuitry communicatively coupled to the emitter and the detector, wherein the control circuitry is configured to monitor the retro-reflected electromagnetic radiation detected by the detector and evaluate information relating to one or more vehicles within a detection area based on the monitored retro-reflected electromagnetic radiation;
an automated device communicatively coupled to the control circuitry and configured to provide a user-perceivable indication relating to the one or more vehicles in the detection area, wherein the control circuitry is configured to cause the automated device to provide specific user-perceivable indications based on the evaluated information relating to the one or more vehicles;
a parking structure having a parking space, wherein the parking space comprises the retro-reflective markers positioned within an area corresponding to an expected location of a vehicle when the vehicle is parked within the parking space; and
wherein the parking space corresponds to at least a portion of the detection area, and the control circuitry is configured to determine whether the parking space is occupied by the vehicle based on retro-reflection by the retro-reflective markers.
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Abstract
A dynamic signal to noise ratio tracking system enables detection of vehicles within the field of view of the tracking system. The tracking system may include an emitter configured to emit electromagnetic radiation within an area, a detector configured to detect electromagnetic radiation reflected back from vehicles within the area, and a control unit configured to evaluate signals from the detector and control various automated devices as a result of this evaluation.
138 Citations
7 Claims
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1. A vehicle traffic control system, comprising:
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an emitter configured to emit electromagnetic radiation into a detection area; a detector configured to detect retro-reflected electromagnetic radiation resulting from retro-reflection of the emitted electromagnetic radiation from retro-reflective markers within the detection area; control circuitry communicatively coupled to the emitter and the detector, wherein the control circuitry is configured to monitor the retro-reflected electromagnetic radiation detected by the detector and evaluate information relating to one or more vehicles within a detection area based on the monitored retro-reflected electromagnetic radiation; an automated device communicatively coupled to the control circuitry and configured to provide a user-perceivable indication relating to the one or more vehicles in the detection area, wherein the control circuitry is configured to cause the automated device to provide specific user-perceivable indications based on the evaluated information relating to the one or more vehicles; a parking structure having a parking space, wherein the parking space comprises the retro-reflective markers positioned within an area corresponding to an expected location of a vehicle when the vehicle is parked within the parking space; and wherein the parking space corresponds to at least a portion of the detection area, and the control circuitry is configured to determine whether the parking space is occupied by the vehicle based on retro-reflection by the retro-reflective markers. - View Dependent Claims (2, 3, 4)
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5. A method of tracking and controlling the movement of vehicles, comprising:
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flooding a detection area with electromagnetic radiation using an emitter, wherein the detection area corresponds to a portion of a parking structure; detecting electromagnetic radiation that is retro-reflected from retro-reflective markers within the detection area using a detector, wherein a parking space of the parking structure comprises the retro-reflective markers positioned within an area corresponding to an expected location of a vehicle when the vehicle is parked within the parking space; monitoring the retro-reflected electromagnetic radiation to evaluate whether the parking space is occupied by the vehicle using control circuitry communicatively coupled to at least the detector; and controlling an automated device based, at least in part, on the occupancy of the parking space using the control circuitry to affect movement of the vehicle within the detection area. - View Dependent Claims (6, 7)
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Specification