The Sensors That Tell An Automatic Door To Open
Automatic sliding doors appear to perform one simple task. A person approaches, and the entrance opens. Behind that familiar movement is a coordinated system of sensors, controls, motors, tracks, and safety features. The system must notice approaching users without opening for every distant movement. It must also protect someone who pauses in the doorway. These abilities make automatic entrances especially useful for wheelchair users, older adults, parents with strollers, and people carrying packages.