How Do Revolving Door Wings Achieve the Precise Positioning ?

 Automatic Revolving Door is the popular solution for the main entrance of hotels/resorts, shopping malls, office buildings, hospital etc., and it's easy for us to see the revolving door wings always stop/start or be locked at the right postion, how does it happen ?

Automatic revolving /rotating doors achieve precise positioning of door wings through a combination of sensors, control systems, and mechanical components, it works as below .

▪  Position Sensors

Optical or magnetic sensors detect the exact angle and position of each door wing as it rotates.

Encoders (rotary or linear) provide real-time feedback on the door's movement.

▪  Control System (PLC or Microcontroller)

A programmable logic controller (PLC) or embedded microcontroller processes sensor data.

It adjusts the motor’s speed and direction to ensure smooth and accurate positioning.

▪  Motor & Drive Mechanism

A servo or stepper motor (often gear-driven) allows for precise rotational control.

Some doors use a belt or chain drive system with tension adjustment to prevent slippage.

▪  Safety & Calibration

Infrared or radar sensors ensure no obstructions are present before stopping.

The system regularly self-calibrates to account for mechanical wear or environmental changes.

▪  Speed Synchronization

Multiple wings (typically 2/3/4 wings) are synchronized via the control unit to maintain even spacing.

Emergency brakes or clutches engage if misalignment is detected.

Key terms: encoder feedback, servo control, dynamic braking, sensor fusion, PID control (Proportional-Integral-Derivative algorithm).

Comments

Post a Comment

Popular posts from this blog

Comparison of Automatic Sliding Door and Automatic Revolving Door

Image
  Automatic Sliding Door   and   Automatic Revolving Door   are the 2 key products and hot sale doors from TSTC Automatic Doors. Do you know the big differences from these 2 type of doors ? Here is the answer as below .  ▪ Automatic Sliding Doors Definition: Doors that open horizontally via motor-driven tracks, commonly used in commercial and healthcare settings. Advantages: Space Efficiency: Ideal for limited spaces; telescopic (foldable) designs maximize opening width while minimizing footprint. Smooth surfaces (stainless steel/glass) resist corrosion and enable easy disinfection. Safety & Accessibility: Force-sensitive reversal stops or reverses upon collision, reducing injury risks. Non-contact operation via sensors/buttons supports infection control. Energy Savings: Rapid closing minimizes air exchange, cutting HVAC costs. Low Noise: PWM-driven motors and silent tracks (<49 dB) suit quiet environments. Disadvantages: Limited Flow Capacity: Smaller op...
Read more

The Big Difference Between Arriving at and Leaving The Hospital

Image
 Although TSTC provide Hermetic Door , ward door, Revolving Door and other type of automatic doors to the hospital, have the good relationship with lots of hospitals,  we always recommend making exercise and physical care as the most important part of our daily life. It is best to avoid going to the hospital if it's unnecessary, because the difference between arriving at and leaving the hospital is truly significant. 
Read more

Automatic Sliding door Operator |Opener -TS300 from TSTC

Image
  A sliding door operator is a mechanical and electronic system that automates the movement of sliding door leaves. These operators are widely used in high-traffic areas such as supermarket |retail stores, hospitals, airports, metro station |BRT station and office buildings, providing smooth, reliable, and safe door operation. They can handle heavy doors, support multiple configurations, and integrate with access control or security systems.  When it comes to adding a sliding door operator, every situation is different. Which means you might be wondering if any operator can handle your specific scenario. If this is a question you're asking, the  TS300  is the answer. It can manage even the heaviest doors with ease, opening and closing them swiftly and safely. And it's highly customizable too. So tackling even the toughest challenges comes as standard – while everything else can be adapted just for you. The  TS300  from TSTC Automatic Doors is a completely r...
Read more