Passage gates are becoming more and more common in our daily life. Channel gates are often installed in public places for controlling the flow of people, counting, charging, and other functions. The infrared photoelectric sensor, as one of the most important parts of the access gate, has been an integral part of the access gate. Also, infrared photoelectric sensors have been used in various industries as excellent security protection products. The next step is to learn with me what protective role photoelectric sensors can play in the channel gates.

1. Anti-crossing and anti-forced entry
Photoelectric sensors are mainly installed in three areas: high, medium, and low. In addition to the normal passage detection, the high sensor can also effectively detect the overturning behavior, and forced entry behavior. At the moment the gate is closed, the high-level sensor detects the object blocking and triggers the alarm function. Warning response to crossing or forcible entry behavior.

2. Anti-following
Channel gates are equipped with an internal infrared sensor system, which can precisely locate the entire passage of personnel after they enter the channel and sense the passage status. When one person passes through the gate, the rest of the people should wait outside the prescribed yellow line area. If the channel gate detects 2 people in the induction area at the same time, then the barrier partition of the wing gate will pop up quickly at this time to block the non-authorized personnel outside the channel to prevent them from entering and start the alarm system.

3. Prevent the wing gate from pinching people.
Usually, the common channel gate will install 6 pairs of infrared sensors, of which there are as many as 5 pairs of infrared sensors for the anti-pinch sensor area. When the wing gate closes the barrier partition, if the photoelectric sensor within the partition detects that there is still an object in the area, the sensor will send a signal to the channel gate to suspend the closing behavior. Thus preventing the phenomenon of wing gates pinching people. In addition, when the barrier plate taps the user when sensing the response torque will also immediately stop automatically.

4. For the discernment of passengers dragging luggage and illegal people following.
For the airport total flow of people is large, and very test channels gates for passengers dragging luggage and illegal people following discrimination and protection. Of course, the realization of this function still depends on the infrared photoelectric sensor to achieve. Normally, civil aviation regulations stipulate that the weight of self-care luggage should not exceed 10 kg, and the volume of each piece should not exceed 20x40x55 cm. The highest height of 20-inch luggage is only 60cm. It is not within the detection range of the entrance detection infrared sensor, so it will not issue a false alarm signal. However, when the passenger walks to the exit induction detection area, the luggage is in the low induction detection area, which can postpone the door body to close. Prevent trapped passengers or luggage, from causing unnecessary injury.

5. For the protection of children passing through.
The height of the gate and the height of the barrier partition is usually only applicable to adults, if the height of less than one meter children pass through it is very likely that children are located in the detection blind spot. It is very easy to be injured by the slap of the barrier partition. However, if the infrared photoelectric sensor is installed in the lower part of the gate, it can effectively improve the level of safety protection for children passing through the gate. However, for safety reasons, it is best to carry the baby through the gate.

I hope the above information can help you to understand more about the role of photoelectric sensors in the field of safety and protection of access gates. If you want to know more about the application of infrared photoelectric sensors, you can also contact us by email. g-TEK has 20 years of experience in the infrared photoelectric sensor industry and insists on providing the most suitable and reliable photoelectric sensor solutions for our customers.