Patent ID: 9641806
Date: 2017-05-02
CPC Classifications: G08G,H04N

Claim:
1. An average speed detection camera system comprising: a first automatic license plate reader (ALPR) camera having an infrared camera for capturing vehicle identification information from a vehicle passing an entrance point; a first communication module coupled to the first ALPR camera for transmitting the vehicle 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 which reside in a single unit, 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 irrespective of whether the time at which the vehicle passes the exit point is prior to the exit timestamp for the vehicle, and only if the time at which the vehicle passes an exit point is prior to the exit timestamp for the vehicle and the vehicle identification information received at the second communication module matches the identification information captured by the second ALPR camera, the overview camera flash illuminates the vehicle with visible light and the overview camera captures an image of the vehicle.