Effect of Ground Sensor Coil Laying on Intelligent Parking System

Gate system of parking lot is believed to be familiar to everyone. It upgrades the system on the basis of the original card swipe and card pick-up. It records vehicle information accurately by capturing and identifying license plate, so that the vehicle can realize non-stop traffic.
What are the differences in composition and installation between license plate recognition system and card-swipe parking system? The influence of ground inductance coil on parking system is described below.

Effect of Ground Sensor Coil Laying on License Plate Recognition System
Ground inductance coil, as one of the ways that license plate recognition system can accurately capture the opening of the brake, needs to accurately measure the installation location and length according to the site environment when it is installed. The ground inductance coil is actually an oscillating circuit.
It is laid on the ground first to create a circular groove, about a meter in diameter, and then buried in the groove two or three turns of wire, which also constitutes a buried inductance coil, which and capacitors constitute an oscillating circuit.
When a vehicle passes by, it will cause the change of oscillation frequency, which is also a signal of the vehicle passing through the ground inductance coil.

The laying of ground inductance coils is affected by the environment, so not only the area (or circumference) and turns, but also the material of coils, the mechanical strength of conductors and the aging resistance at high and low temperatures should be taken into account when burying them.
In some places where the environment is harsh, the problem of acid and alkali corrosion resistance must also be considered. Therefore, it is generally recommended to use high temperature multi-strand flexible conductors of Teflon over 1.0 mm for induction coils in parking lots.

The position of the ground inductance coil also has a great influence on the license plate recognition snapshot. The position of the license plate recognition control machine and the position of the road brake are very important. The distance is too close, which easily causes the slow lifting of the road brake and the collision of the vehicle with the road brake.
And the distance is too far will affect its recognition effect, so for the laying of ground inductance coil, we must find a professional construction factory or parking equipment manufacturer.

Therefore, as an important equipment used to manage vehicles in the parking lot, the ground inductance coil operates 24 hours a day uninterruptedly. Its stability directly affects the operation of the parking lot and installs the parking system in strict accordance with the construction requirements.