The role of the Vehicle Loop Detector in the parking lot system

The role of the vehicle loop detector in the parking lot system

In the parking lot system, to determine the role of the loop detector, we must first know the location of the detector installation. The loop detector is generally installed in the following four positions:

1. At the entrance ticket box (entry control machine);

2. One at each entry and exit gate;

3. Exit ticket box (export control machine);

The ground-sensing coils used in the industry are generally copper core wires. Anyone who has gone to junior high school should know that when a metal object passes through the coil, a current will be generated. This principle is used in the parking lot system;

This is why we call it a coil. The production method of the coil is relatively simple, that is, a certain length of copper wire is wrapped around a few times. This explanation is familiar to everyone;

The ground sense function at the entrance control machine can be located in two aspects:

1. Anti-lost card

Everyone should know that in the standard one-in-one-out system, when a temporary vehicle enters the field, it enters the field by automatically picking up the card. He only needs to press the button. The function of the ground sense at this time is to sense that there is a vehicle at the You can only take the card when you are there, instead of people standing up and pressing the button to take the card

2. Press the ground to read the card

In the long-distance card reading system (Bluetooth system, license plate recognition system), the sense of place is used to identify the direction of the vehicle;

The role of the entry and exit gates also has two aspects

1. Anti-smashing the car, the brake lever will not drop when there is a car on the ground;

2. The car passes the drop bar 

Ground sense at the exit control machine

Similar to the sense of ground at the entrance controller, in the long-distance card reading system (Bluetooth system, license plate recognition system), the sense of place is used to identify the direction of the vehicle

停车场系统中地感线圈的作用

    在停车场系统中，要确定地感线圈的作用首先我们得知道地感线圈安装的位置，地感线圈一般装在以下四个位置：

    1、入口票箱处（入口控制机）；

    2、入出口道闸处各一个；

    3、出口票箱处（出口控制机）；

    行业内使用的地感线圈，一般都是铜芯线，上过初中的人都应该知道，当有金属物体穿过线圈时，会产生电流，停车场系统中就是利用了这个原理；

    这也就是为什么我们称之为线圈，线圈的制作方法比较简单，就是将一定长度的铜线环绕几圈，这么一解释大家都不陌生了吧；

    其入口控制机处的地感作用可定位两个方面:

    1、防丢卡

    大家应该都知道，在标准一进一出系统中，临时车辆进场时是通过自动取卡进场的，他只需要按按钮就行了，这时候的地感的作用就是当感应有车辆在该处时才能取卡，而不是人站上去按按钮就能取卡

    2、压地感读卡

    在远距离读卡系统中（蓝牙系统、车牌识别系统），该处地感用于辨别车辆方向；

    入出口道闸其作用也有两个方面

    1、防砸车，有车在地感处时道闸杆是不会落杆的；

    2、车过落杆

    出口控制机处的地感

    跟入口控制器处的地感相似，在远距离读卡系统中（蓝牙系统、车牌识别系统），该处地感用于辨别车辆方向