The main components of the grille include the grille, controller, sensor and alarm.
1. Grille: It is composed of multiple filaments or strips. The appropriate grille size and spacing can be selected according to different needs.
2. Controller: Converts the signal captured by the sensor into a control signal to control the opening and closing of the grille.
3. Sensor: Usually photoelectric sensors or ultrasonic sensors are used to detect whether there are people or objects entering or leaving the protected area.
4. Alarm: During the operation of the grille, if an abnormal situation is detected, the alarm will send out an audible and visual alarm signal to alert relevant personnel.