What is the function of the turnstile gate of the community passage?

1. Anti-trailing function
This channel has a total infrared light band detection area. According to the user's precision requirements, the switch state can be adjusted through software to adapt to different needs. It avoids the shortcomings of point-type infrared light band detectors that are easily contaminated and affects the reliability of judgment. The tail of the card reader. When the system determines the tail, the system will respond according to the position of the valid cardholder returned by the infrared detector. After the opening signal is sent, there are still some abnormal usages that will trigger the alarm system.
2. Abnormal use alarm function
When the door is opened, after the door is opened in reverse, 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 aging function will not be calculated. At this time, when people leave the second detection zone, the door resumes normal operation.
The time gap is about 0.25 seconds from the first detector detects the pedestrian to the last detector when he leaves the first safety detection zone. After the pedestrian leaves the first safety detection zone, when the card reader signal does not send out the door, Pedestrians (trailers) were detected again in the first detection zone, the alarm sounded, and the door remained open.
When pedestrians leave, reverse intrusion pedestrians pass through the second security detection area. Before the door returns to the basic state, there is no legal opening signal, the second security detection area detects that someone has entered, and the alarm system issues an alarm. But as long as the guard detection area still detects a person, the door will not close.

When the door is closed, the reverse intruding pedestrian enters the door body after the authorized door opening signal is issued. Before passing the first safety photoelectric detection strip, if the reverse detection strip detects that someone has entered, as long as the person does not leave, the buzzer will keep sounding the alarm and the door will remain closed. The timeliness feature does not calculate the time interval at this point