How Sensor use at Turnstiles
Sensor are widely used at turnstiles to satisfy different demand, infrared photoelectric sensor, proximity switch, hall sensor are main sensor type used at Wing gate turnstile, swing gate turnstile, tripod turnstile, high-speed turnstile. G-TEK Sensor provides sensor solution for turnstile market for more than 20 years and is the most popular sensor brand at China market. Then how the sensor use at turnstiles? Let’s have a look at G-TEK sensor application.
1. Infrared photoelectric sensor
G-tek sensor installed at the gate entrance is used to detect whether people intrude into the gate. When swiping the card outside the yellow line, there is no object at the gate entrance, and the sensor signal is normal, the wing door will open; if the person goes inside the yellow line, the sensor signal at the gate entrance changes, even if swiping the card, the wing door will not open. The purpose of this design is to prevent the opening and closing of the wing gate when swiping the card at a short distance, which may cause potential safety hazards, and also prevent ticket evasion.
After the access door is opened, the human body will pass through the sensor at the second sensor position. When a person is standing at the door, the sensor detects the person and the door will always be open to prevent injury.
When the people pass through the door, he goes to the gate exit sensor in the third part. At this time, the sensor detects the people and the signal will feed back to the door then the door will close.
More other application as following:
2 Proximity Switch
The proximity switch are mostly used at tripod turnstile and full height turnstile for positioning
The same usage will be suitable at full height turnstile for position limit and people tracking.