Photoelectric induction opens access doors suitable for most vehicles and personnel. When a person or vehicle passes through a photoelectric induction area, the control induction circuit will use the induction signal from the photoelectric and instruct the fast door to open.
Advantages: When the control handle is in the active gear position, it does not need personnel to operate, and the door is fully open and closed.
Defect: It will happen that people will pass through, but the rapid lifting door is misjudged and opened.
2. Geomagnetic induction control
The geomagnetic ring opens the passageway door which is suitable for vehicles or other facilities, personnel to push and pull metal cars in and out of frequency.
Advantages: When the control handle of the control box hits the active gear position, only the metal object passes through the induction area of the magnetic induction coil, and the fast door of the factory building can be opened on its own initiative. Note that the sensitivity of the geomagnetic ring inductor can be adjusted by itself.
Defect: The door does not open when a person travels through the geomagnetic induction area without carrying a metal object. When the control handle is in the position of the manual gear, the geomagnetic induction does not work. At this moment, only the operation button, the pull rope switch and other operation doors are opened and closed.
3. Radar Manipulation
Radar opening method is suitable for access doors of other vehicles such as forklift trucks and people.
Advantages: fully active open and closed, no need for human operation, just enter the radar induction area, the fast door will automatically open.
Defects: The automatic lifting door opens when a moving object passes through the radar sensing area (when the control handle is in the active gear). When the control handle is in the position of the manual gear, the radar induction does not work. At the moment, the stacking door opens and closes as long as the operation button, the pull rope switch and so on are operated.
Comparison of Geomagnetic Induction and Radar Opening of Shenyang Express Gate Accumulation Gate