Automatic door sensing door is an important access control device system. It can be seen in many places. The function of automatic switch saves us a lot of effort. Do you know its working principle and structure? How much do you know about this? Is it not clear? It doesn't matter. Next, we'll summarize it for you.

一、自动感应门的工作原理：

1、 Working principle of automatic induction door:

自动门本身装有感应探头，可以发出红外信号或微波信号。当这个信号被关闭的物体反射时，它会自动打开和关闭。当感应检测器检测到有人进入时，感应检测器会采集信号并产生脉冲信号，然后传输到主控制器。

The automatic door itself is equipped with an induction probe, which can send infrared signal or microwave signal. When this signal is reflected by a closed object, it will automatically turn on and off. When the induction detector detects someone entering, the induction detector will collect signals and generate pulse signals, and then transmit them to the main controller.

主控制器判断后，会通知电机运行，同时监控电机的转数，从而通知电机施力，在一定时间内缓慢运行。电机得到一定的运行电流后，向前运行，将动力传递给同步带，然后同步带将动力传递给吊具系统，打开门扇;门扇打开后，控制器会做出判断。如果有必要关门，通知电机反向运动并关闭门扇。

After judgment, the main controller will notify the motor to run and monitor the number of revolutions of the motor, so as to inform the motor to apply force and run slowly within a certain time. After the motor gets a certain operating current, it runs forward and transmits the power to the synchronous belt, and then the synchronous belt transmits the power to the spreader system and opens the door leaf; After the door leaf is opened, the controller will make judgment. If it is necessary to close the door, inform the motor to move in the opposite direction and close the door leaf.

二、自动感应门的构成结构：

2、 Composition of automatic induction door:

感应门有很多种。这里以平移感应自动门机为例，介绍一下它的组成：

There are many kinds of induction doors. Here, take the translation induction automatic door machine as an example to introduce its composition:

(1)主控制器：是自动门的指挥中心，通过内置指令程序的大型集成块，发出相应的指令，命令电机或电锁系统工作;同时，人们通过主控制器调节开启速度、开启幅度等参数。

(1) Main controller: it is the command center of the automatic door. It sends corresponding commands to command the motor or electric lock system through the large integrated block with built-in command program; At the same time, people adjust the opening speed, opening amplitude and other parameters through the main controller.

(2)感应探测器：主要分为微波传感器和红外传感器两种。它负责采集外界信号，就像人的眼睛一样。当在其工作范围内有一个运动物体进入时，它给主控制器一个脉冲信号。

(2) Induction detector: it is mainly divided into microwave sensor and infrared sensor. It is responsible for collecting external signals, just like human eyes. When a moving object enters within its working range, it sends a pulse signal to the main controller.

(3)动力电机：提供开关门的主要驱动力，控制门扇的加速和减速。

(3) Power motor: it provides the main driving force for opening and closing the door and controls the acceleration and deceleration of the door leaf.

自动门感应门

Automatic door sensing door

(4)门扇行驶轨迹：就像火车的轨道一样，约束门扇的吊索轮系统，使其向特定方向行驶。

(4) Door leaf travel path: like the track of a train, the sling wheel system constrains the door leaf to travel in a specific direction.

(5)门扇吊具行走轮系统：用于悬挂活动门扇，驱动门扇在动力牵引下运行。

(5) Door leaf spreader traveling wheel system: it is used to hang the movable door leaf and drive the door leaf to run under power traction.

(6)同步带(有的厂家用V带):用来传递电机产生的动力，拉动门扇吊具的车轮运行系统。

(6) Synchronous belt (V-belt used by some manufacturers): it is a wheel running system used to transfer the power generated by the motor and pull the door leaf spreader.

(7)下导向系统：是门扇下部的导向和定位装置，防止门扇运行时前后门体摆动。

(7) Lower guiding system: it is the guiding and positioning device at the lower part of the door leaf to prevent the front and rear door bodies from swinging when the door leaf is running.

(8)感应门机安装在自动感应门中，是控制自动门开关的一系列部件的统称;

(8) Induction door machine is installed in the automatic induction door, which is the general name of a series of components controlling the automatic door switch;

也称为自动门单元或感应门单元;感应门座起重机的部件一般包括：电机、控制器、挂轮、皮带和导轨。

Also known as automatic door unit or induction door unit; The components of induction portal crane generally include: motor, controller, hanging pulley, belt and guide rail.

以上是自动感应门的工作原理和结构介绍。希望大家在生活中能更好的应用。同时，感应门应用广泛，相信未来的发展前景将会变的越来越好。

The above is the working principle and structure of automatic induction door. I hope you can better apply it in your life. At the same time, the induction door is widely used. I believe that the future development prospect will become better and better.