Automatic door control systems are designed to open and close doors without the need for human intervention. These systems are commonly used in commercial, industrial, and public buildings, such as shopping malls, airports, hospitals, and offices, where convenience, accessibility, and hygiene are important.
The primary purpose of an automatic door system is to provide seamless and efficient entry and exit for users.
The main purpose of an automatic door control system is to provide and accessibility.
Sensors
Sensors detect the presence or approach of a person or object to trigger the opening of the door. Common types include:
Motion Sensor
Use infrared or microwave technology to detect movement.
Pressure Sensors
Embedded in mats to detect weight when a person steps on them.
Proximity Sensors
Use radio frequency or ultrasonic waves to detect objects near the door.
The door control system uses sensors to detect when a person is approaching.
Control System
The control system is the central unit that processes signals from the sensors and sends commands to the door operator to open or close the door. It can be programmed for different opening speeds, durations, and sensitivity levels.
The control mechanism in an automatic door system usually includes a .
Door Operator
The door operator is the mechanism responsible for opening and closing the door. It typically includes an electric motor and an actuator that work together to move the door along a track or swing it open, depending on the door type.
The actuator is a key component that converts the electrical energy from the motor into mechanical motion, enabling the physical movement of the door. For sliding doors, the actuator moves the door horizontally along a track, while for swinging doors, it controls the rotational movement.
Automatic door actuators can be classified into and swinging types based on their operation.
Safety Sensors
Safety sensors, such as infrared beams or laser scanners, are installed to detect obstructions in the door's path. If an obstruction is detected, the door will stop or reverse to prevent injury or damage.
Safety features in automatic doors often include sensors to prevent accidents.
Security Control
Keycards or Keypads
Doors may require keycard swipes or keypad codes to grant access to authorized individuals, especially in secure areas like offices, warehouses, or data centers.
Biometric Authentication
High-security systems use fingerprint, facial recognition, or retina scanners to ensure only authorized personnel can enter.
Remote Access
Some systems are controlled remotely, allowing security personnel to unlock doors via mobile apps or control rooms.
Access Control
Emergency Control
Panic Bars
Doors in public buildings or industrial settings often include panic bars that allow for quick exit during emergencies (e.g., fire alarms). Pushing the bar unlocks the door and opens it, regardless of security settings.
Fire Alarm Integration
Automatic doors can be programmed to open when a fire alarm is triggered, allowing for rapid evacuation. Fire doors can also be programmed to close to contain the spread of fire.
Power Failures
Many automatic doors have backup power systems to ensure continued operation during a power outage, opening automatically to provide exit access. In the event of system failure, doors often have a manual override system, enabling them to be opened by hand for emergency evacuation.
Automatic doors can be equipped with sensors that detect smoke or heat and automatically to provide an escape route.
