[Fuyong parking lot system sales manufacturer] it is very important to bury the ground induction coil in parking lot system
Time: 2020-05-07 View: 4005
[Fuyong parking lot system sales manufacturer] it is very important to bury the ground induction coil in parking lot system
Fuyong parking lot system sales manufacturerThe ground induction coil is very important in the parking system, which is related to the stability of the whole parking system. Starting from the working principle of the grounding induction coil, the structure of the grounding induction coil is introduced.1. Principle of vehicle detector and ground induction coil in parking lotOne. working principleGround induction coil vehicle detector is a vehicle detector based on electromagnetic induction principle. Generally, the loop coil is buried under the same vehicle road base, and a certain working current is used as the sensor.When the vehicle passes or stops on the coil, the iron on the vehicle will change the magnetic flux in the coil, thus causing the change of coil loop inductance. The detector detects the change of inductance to judge the status of passing vehicles.There are two methods to detect the change of inductance: one is to detect the change of phase with phase latch and phase comparator; the other is to detect the oscillation frequency with coupling circuit composed of loop coil.2. system compositionGround induction vehicle detector includes ground induction coil and detector. The coil is used for data acquisition. The detector is used to judge data and output corresponding logic signals. The detector is generally composed of rack, CPU, detection card and terminal block.3. The function of ground induction coil in parking lot systemIn the parking lot system, to determine the function of the grounding induction coil, the installation position of the grounding induction coil shall be known first, which is generally installed in the following four positions:One. Admission ticket box (access control machine);2. One at the entrance;Three. Export ticket box (export control machine);Generally, the industrial grounding induction coil is copper core wire. People who have been in junior high school should know that when a metal object passes through a coil, it will generate current. This principle has been applied in parking lot system
