AVERAGE SPEED DETECTION WITH FLASH ILLUMINATION
First Claim
1. An average speed detection camera system comprising:
- a first automatic license plate reader (ALPR) camera having an infrared camera for capturing identification information from a vehicle passing an entrance point;
a first communication module coupled to the first ALPR camera for transmitting the identification information and either an entrance timestamp or an exit timestamp for the vehicle;
a second ALPR camera including an infrared camera and an overview camera, the second ALPR camera coupled to a second communication module, wherein the second communication module receives the vehicle identification information and transmitted time stamp from the first communication module; and
wherein the infrared camera of the second ALPR camera captures identification information from the vehicle as it passes an exit point, and if the time at which the vehicle passes an exit point is prior to the exit timestamp for the vehicle, the overview camera flash illuminates the vehicle with visible light and captures an image of the vehicle.
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Accused Products
Abstract
An average speed detection camera system. The system includes a first automatic license plate reader (ALPR) camera having an infrared camera for capturing identification information from a vehicle passing an entrance point. A first communication module is coupled to the first ALPR camera for transmitting the identification information and either an entrance timestamp or an exit timestamp for the vehicle. A second ALPR camera includes an infrared camera and an overview camera is coupled to a second communication module. The second communication module receives the vehicle identification information and the reference time stamp from the first communication module. The infrared camera of the second ALPR camera captures identification information from the vehicle as it passes the exit point, and if the time at which the vehicle passes an exit point is prior to an exit timestamp for the vehicle, the overview camera flash illuminates the vehicle with visible light and captures an image of the vehicle.
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Citations
28 Claims
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1. An average speed detection camera system comprising:
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a first automatic license plate reader (ALPR) camera having an infrared camera for capturing identification information from a vehicle passing an entrance point; a first communication module coupled to the first ALPR camera for transmitting the identification information and either an entrance timestamp or an exit timestamp for the vehicle; a second ALPR camera including an infrared camera and an overview camera, the second ALPR camera coupled to a second communication module, wherein the second communication module receives the vehicle identification information and transmitted time stamp from the first communication module; and wherein the infrared camera of the second ALPR camera captures identification information from the vehicle as it passes an exit point, and if the time at which the vehicle passes an exit point is prior to the exit timestamp for the vehicle, the overview camera flash illuminates the vehicle with visible light and captures an image of the vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method of detecting average speed of a vehicle comprising:
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capturing identification information for the vehicle with an infrared camera of a first automatic license plate reader (ALPR) camera as the vehicle passes an entrance point; transmitting the identification information with either an entrance timestamp or an exit timestamp for the vehicle to a second communication module coupled to a second ALPR camera, the second ALPR camera including an infrared camera and an overview camera; capturing the vehicle identification information with the infrared camera of the second ALPR camera as the vehicle passes an exit point; determining whether the time at which the vehicle passes the exit point is prior to the exit timestamp for the vehicle; and if the time at which the vehicle passes the exit point is prior to the exit timestamp for the vehicle, flash illuminating the vehicle with visible light and capturing an image of the vehicle with the overview camera. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. An average speed detection system comprising:
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a first vehicle identification device for capturing identification information from a vehicle passing an entrance point; a first communication module coupled to the first vehicle identification device for transmitting the identification information and an associated exit timestamp for the vehicle; a second vehicle identification device comprising an overview camera, the second vehicle identification device coupled to a second communication module, wherein the second communication module receives the vehicle identification information and the exit time stamp from the first communication module; and wherein the vehicle identification device captures identification information from the vehicle as it passes an exit point, and if the time at which the vehicle passes an exit point is prior to the exit timestamp for the vehicle, the overview camera flash illuminates the vehicle with visible light and captures an image of the vehicle.
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Specification