Automatic Doors’ Position Detection Using Reed Sensors

Traditionally, doors in shopping malls, commercial buildings, and offices required manual intervention for operation. Users had to physically push or pull the doors to open them, which posed challenges in terms of accessibility, especially for individuals with disabilities. Moreover, in high-traffic areas, manual doors could lead to congestion and inconvenience. The advent of automated door systems helped improve this by incorporating motion sensors that detect the presence of individuals approaching the door. Once triggered, these sensors initiate a motorized mechanism that slides the doors open automatically, enhancing convenience and accessibility.

The integration of magnet sensors at either end of automatic doors ensures reliable operation and safety. Positioned strategically, these sensors detect the magnetic field when the door reaches its fully open or closed position. This end position sensing is essential for automatically stopping the door motor, preventing unnecessary wear and ensuring smooth operation over time. By accurately detecting the door’s position, magnet sensors contribute to the overall efficiency and durability of the automated door system.

Magnet sensors, based on reed switch technology, offer several advantages in automatic door applications. The reed switch within the sensor responds to changes in magnetic field strength, reliably signaling when the door has reached its intended position. This feedback mechanism not only enhances operational reliability but also improves user safety by preventing the doors= motors from over loading or remaining partially open or closed. Additionally, the use of magnet sensors reduces maintenance requirements by minimizing mechanical stress on the door motor and associated components, thus extending the system’s lifespan and reducing operational costs.

Magnet sensors in automatic door systems are vital products that ensures smooth and efficient operation. By providing accurate end position sensing, these sensors enhance user experience, promote accessibility, and contribute to the overall safety and reliability of automated door installations in diverse commercial and public settings. Integrating magnet sensor technology underscores a commitment to modernising building access while optimising operational efficiency and maintenance efforts for facility managers and building owners alike.

Application Classification

Applications are classified as Position Sensing, Pulse Counting, Electromagnetic or Relay, Temperature Sensing or Magnet Biasing types. This application is classified as follows and the link gives more information on best practices to help select the most suitable AT band and matching magnet.

Position sensing Type

When an application requires the end position of a movement sensed, or the sensing of a part when it comes into a zone, or when the Continue reading -> Sep 29, 2024

Recommended Products

The Reed Switches and Sensors used in automatic door applications need to be robust, durable and efficient in meeting a high life expectancy. Our engineers work hard in life testing our products under various conditions, and our intention is to ensure end product durability and life. Although we wouldn’t want to restrict any of our products for use in only certain applications, the recommended products for use in this application are listed below.

Standard PCB Mountable Reed Sensor, MS-108

Drawing of MS-108 Reed SensorDrawing of MS-108 Reed Sensor Pad Layout starFeatures10W Contact Rating. 20.3 mm PCB Pitch. Normally Continue reading -> Sep 3, 2024

M8 Threaded Sensor Cylindrical Sensor, MS-228

MS-228 M8 Threaded Sensor Drawing starFeatures30W Contact Rating. Normally Open contact. Three sensitivity bands. Sputtered Ruthenium Continue reading -> Sep 28, 2024

Standard Flat Pack Magnet Sensor, MS-328

starFeatures10W Contact Rating. Normally 30W Contact Rating. Normally Open contact. Three sensitivity bands. Sputtered Ruthenium Continue reading -> Sep 28, 2024

Line Voltage switching Reed Switch, LV-1925

Full Length LeadsCropped LeadsSMD Formed LeadsVertical MountingHorizontal Mounting starFeaturesContact Rating Configurable. Ruthenium Continue reading -> Sep 3, 2024