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What kind of access gate is suitable for the entrance of the cinema? Generally, the gate can be selected for ticket inspection in the entrance channel of the theater. There are three kinds of gates to choose from: three roller gate, wing gate and swing gate.

Three roller gate is a ticket checking gate widely used in subway, light rail and scenic spots. It has good performance, good safety, impact resistance, convenient maintenance and the cheapest price. It can also be used in open air.

The swing gate has beautiful appearance, fast traffic speed and high safety; It is easy to follow. In conditional cinemas and theaters, if staff guide tourists to enter by swiping tickets next to the gate, there will be no trailing phenomenon. The cost is higher than that of three roller gate; It can't be used in the open air.

The wing gate has beautiful appearance, fast traffic speed and low safety compared with the three roller gate. It is easy to pinch tourists and follow in. In conditional cinemas, if staff guide the audience to swipe their tickets next to the gate, there will be no clamping and trailing. But not in the open air.

General functional features of cinema gate:

1. Anti tailing function: there is an infrared light band detection area in the channel. The switch state can be adjusted by software according to the accuracy requirements of customers to adapt to the application of light bands with different needs, so as to avoid the disadvantage that the point infrared detector is easy to be polluted and affect the judgment reliability, and can effectively judge the followers who do not read the card. When the system determines that the following occurs, the system will react according to the position of the valid cardholder returned by the infrared detector. After the door opening signal is sent, there are still some abnormal uses that will trigger the alarm system.

2. Abnormal use:

a. When the door is closed, the reverse intruder enters the door body after the authorized door opening signal is sent. Before passing the first safety photoelectric detection belt, if the reverse detection belt detects someone entering, as long as the person does not leave, the buzzer will always give an alarm, the door remains closed, and the aging function does not calculate the time interval at this time.

b. When the door is opened, reverse intrusion. After the door wing is opened, if an unauthorized pedestrian enters the door detection area in the reverse direction, the door will be closed immediately. As long as the first protection detection belt detects the presence of someone, the time limit function will not calculate the time at this time. When the person leaves the second detection area, the door will resume normal operation.

c. When the pedestrian leaves, the pedestrian enters in reverse and passes through the second safety detection area. Before the door returns to the basic state, if there is no legal door opening signal, the second safety detection area detects someone entering and the alarm system sends an alarm. But as long as someone is still detected in the protection detection area, the door will not be closed.

d. The time gap between the first detector detecting a pedestrian and the last detector leaving the first safety detection belt is about 0.25 seconds. After the pedestrian leaves the first safety detection belt, when the card reader signal does not send out to open the door, the first detection area detects a pedestrian (follower), the alarm sounds for a long time, and the door is still open.