Patent ID: 9679479
Date: 2017-06-13
CPC Classifications: B60R,G06F,G06K,G07C,G08G

Claim:
1. An induction vehicle detection and identification system comprising: at least one identification device with a memory, the identification device mounted on a vehicle; a reader capable of reading and/or writing data obtained from identification devices using HF radio frequency; wherein the identification device includes a resonator integrated into a license plate of the vehicle, the resonator including a multi-turn frame connected to an integrated circuit that is powered by an external alternating magnetic field; the identification device further including a non-volatile memory unit storing at least a license plate number of vehicle; the reader equipped with a magnetic frame, the perimeter of which corresponds from ⅕ to ½ wavelength of the HF radio frequency, wherein the magnetic frame is embedded in the dielectric casing, wherein the reader is located under a roadway at a depth of not more than 1 meter; wherein the reader generates an alternating magnetic field for detection of the license plate and an identification of the vehicle in a range of the magnetic frame based on the information from the license plate, wherein the reader enables data transfer at a rate of 1 Kbit/sec or more, wherein a minimum time the reader requires to read discrete responses generated by electronic identification devices and to identify the vehicle is less than 25 ms and is proportionate to the vehicle speed up to 250 km/h, and wherein an effective detection range of the magnetic frame is as wide as the roadway if a power of a signal on the magnetic frame is at least 1 W.