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、自動感應門的工作原理：

1、 Working principle of automatic induction door:

自動門本身裝有感應探頭，可以發出紅外信號或微波信號。當這個信號被關閉的物體反射時，它會自動打開和關閉。當感應檢測器檢測到有人進入時，感應檢測器會采集信號并產生脈沖信號，然后傳輸到主控制器。

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.

主控制器判斷后，會通知電機運行，同時監控電機的轉數，從而通知電機施力，在一定時間內緩慢運行。電機得到一定的運行電流后，向前運行，將動力傳遞給同步帶，然后同步帶將動力傳遞給吊具系統，打開門扇;門扇打開后，控制器會做出判斷。如果有必要關門，通知電機反向運動并關閉門扇。

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、自動感應門的構成結構：

2、 Composition of automatic induction door:

感應門有很多種。這里以平移感應自動門機為例，介紹一下它的組成：

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：是自動門的指揮中心，通過內置指令程序的大型集成塊，發出相應的指令，命令電機或電鎖系統工作;同時，人們通過主控制器調節開啟速度、開啟幅度等參數。

(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)感應探測器：主要分為微波傳感器和紅外傳感器兩種。它負責采集外界信號，就像人的眼睛一樣。當在其工作范圍內有一個運動物體進入時，它給主控制器一個脈沖信號。

(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)動力電機：提供開關門的主要驅動力，控制門扇的加速和減速。

(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.

自動門感應門

Automatic door sensing door

(4)門扇行駛軌跡：就像火車的軌道一樣，約束門扇的吊索輪系統，使其向特定方向行駛。

(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)門扇吊具行走輪系統：用于懸掛活動門扇，驅動門扇在動力牽引下運行。

(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)同步帶(有的廠家用V帶):用來傳遞電機產生的動力，拉動門扇吊具的車輪運行系統。

(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)下導向系統：是門扇下部的導向和定位裝置，防止門扇運行時前后門體擺動。

(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)感應門機安裝在自動感應門中，是控制自動門開關的一系列部件的統稱;

(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;

也稱為自動門單元或感應門單元;感應門座起重機的部件一般包括：電機、控制器、掛輪、皮帶和導軌。

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.

以上是自動感應門的工作原理和結構介紹。希望大家在生活中能更好的應用。同時，感應門應用廣泛，相信未來的發展前景將會變的越來越好。

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.