How do automatic door systems actually work?

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06.07.2023

Automatic doors systems are a common feature in day-to-day life. From shopping centres and office blocks to airports and hospitals, they make access to many buildings convenient for most. 

It’s hard to imagine a world without automatic door systems where you have to physically open the door to a supermarket or your local GP. Automatic doors are disability-friendly while maintaining high hygiene standards by eliminating the need for physical contact.

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How automatic doors work & why they’re needed

As the name suggests, automatic doors open automatically as a person approaches. 

Here’s a look into the technology and mechanisms that enable automatic doors to open and close seamlessly:

Sensor systems

Automatic doors are equipped with sensors that detect the presence of people and objects in their vicinity. These sensors use technologies, like infrared, microwave, and motion detectors, to detect movement or changes in the surrounding environment. 

So when a person approaches the door, the sensors send a signal to the control mechanism, initiating the door’s opening sequence.

Our automatic doors feature state-of-the-art motion detectors that utilise advanced technology to precisely detect and respond to human movement, ensuring seamless and secure automatic door operation.

Control mechanism

The control mechanism is the brain behind the operation of automatic doors. It receives signals from the sensors and processes them to determine the appropriate action.

It controls the speed, timing, and direction of the door’s movement. The control mechanism ensures that the door opens smoothly and safely, allowing people to pass through without any hindrance.

Activation methods

Automatic doors can be activated in different ways, depending on the specific design and purpose. Some common activation methods include:

1. Motion sensors: These sensors detect movement within a designated range. When a person approaches the door, the sensors trigger the door to open.
2. Push buttons: These are manual activation devices that allow users to open the door by pressing a button.
3. Proximity sensors: Using radio frequency identification (RFID) or similar technologies, proximity sensors detect electronic keycards or other authorised devices. This enables controlled access to specific areas.
4. Pressure mats: Installed on the floor near the door, pressure mats detect the weight of a person standing on them. This triggers the door to open.

Opening and closing mechanisms

Automatic doors employ different mechanisms to facilitate their opening and closing actions. The most common mechanisms include:

1. Sliding doors: Sliding doors are often found in commercial buildings. They operate on a track system, with panels that slide horizontally to open or close the doorway.
2. Curved sliding doors: Just like standard sliding doors, curved sliding doors slide open and closed horizontally on a curved track. 
3. Swing doors: Swing doors, similar to traditional hinged doors, pivot on hinges and swing open or closed when activated.
4. Folding doors: Folding doors consist of multiple interconnected panels that fold as the door opens. This design is often used in areas with limited space.

Safety features

Automatic doors are equipped with safety features to ensure the wellbeing of users. These include:

1. Safety sensors: Additional sensors are installed near the edges of the door to detect any obstructions. If an object or a person is detected, the door will reverse its movement to prevent accidents.
2. Emergency opening: In case of power failure or emergency situations, automatic doors are equipped with manual override mechanisms, such as a lever or a push bar, allowing people to open the door manually.
3. Access control: Automatic security door systems can be integrated with access control systems to provide controlled access to areas and facilities. 
4. Burglar resistant: Our doors come with burglar resistant functions, as well as reliable and durable locking systems.

What you should know before buying automatic doors

What is the lifespan of an automatic door?

The durability of an automatic door system is entirely dependent on how often it is used, where it operates and how you look after it. 

For longevity, you should book regular maintenance and servicing with your providers to ensure components are replaced when needed, and potential problems are prevented before they impact the operation. 

Are there any legal requirements when operating automatic door systems?

Yes, automated door operators require regulation standards to ensure the safety of the people using the door. 

For more information on the BS EN 16005 compliance rules, take a look at our guide.  

How do you install an automatic door system to an existing entryway?

Automatic door systems can be installed to existing buildings with security and access control systems, but it is best to hire a trained professional to install the systems in order to ensure it works safely and smoothly. 

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Looking to purchase an automatic door?

Whether you’re still browsing options or ready to install an automatic door at your business, give us a call or an email to help you choose the best options, styles and maintenance packages for your perfect automatic door system.