Influence of Ground Induction Coil on License Plate Recognition System_ Taigewang Technology

The license plate recognition system is believed to be familiar to everyone. It is an upgrade of the system based on the original card swiping and card taking. It accurately records the vehicle information through the capture and recognition of the vehicle license plate, so that the vehicle can pass without stopping. What are the differences in composition and installation between the license plate recognition system and the ordinary card swiping parking lot system? The following describes the impact of ground induction coil on license plate recognition system. As one of the ways for the license plate recognition system to accurately capture and open the gate, the ground induction coil needs to accurately measure the installation position and length according to the on-site environment. The ground induction coil is actually an oscillation circuit. Its laying is to create a circular groove on the ground with a diameter of about one meter, and then embed two or three turns of wires in the groove, which constitutes an inductance coil buried on the ground. It and capacitance form an oscillation circuit. When a vehicle passes by, it will cause the change of oscillation frequency, This is also a signal that the car passes through the ground induction coil. The laying of the ground coil is affected by the environment. Therefore, not only the size of the area (or circumference) and the number of turns, but also the material of the coil, the mechanical strength of the wire and the anti-aging problem of high and low temperature must be taken into account in the burial. In some harsh environments, the problem of acid and alkali corrosion must also be considered. Generally, for the ground induction coil in the parking lot, it is recommended to use teflon high-temperature multi strand flexible conductor above 1.0mm. The laying position of the ground induction coil also has a great impact on the capture of license plate recognition. It is very important to be away from the position of the license plate recognition controller and the position of the road gate. If the distance is too close, it is easy to cause the slow lifting of the road gate rod, and the vehicle hits the road gate rod, and if the distance is too far, it will affect the recognition effect, Therefore, for the laying of ground induction coil, we must find professional construction manufacturers or parking lot equipment manufacturers. Therefore, as an important equipment used to manage vehicles in the parking lot, the ground induction coil operates 24 hours a day, and its stability directly affects the operation of the parking lot. The parking lot system is installed in strict accordance with the construction requirements, which is also a preventive measure.