AVERAGE SPEED DETECTION WITH FLASH ILLUMINATION

摘要

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.

主权项

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.