Classification and functional characteristics of access gates
Classification and functional characteristics of access gates
Now security gates are no longer limited to airports, subways and other places for ticket checking, but are more operating in high-end office buildings, libraries, theaters, factories, enterprises, exhibition centers, stadiums, tourist attractions, etc., providing you with a fast, Smooth and efficient bidirectional controllable passage, with competitive, high-quality safe passage control system. The high-efficiency door wing sliding system and brushed stainless steel finish create an aesthetically pleasing profile that meets the practical, aesthetic needs of most interior architectural designs. The unique design makes it suitable for various channel monitoring environments, and can be installed with single channel and multi-channel to realize the function of matching with most access control systems.
1. Classification of channel gates
There are various types of access gates, which can be divided into:
Telescopic speed gate (wing gate), which is characterized in that it can quickly and smoothly control entry and exit in one or two directions;
Swing gate, it is a kind of pedestrian passage control equipment with high safety protection level;
Optical door is mainly used to solve the monitoring and access control equipment designed to solve the population flow and ID card;
Three-roller gate, which is a row-level access control device specially designed to solve access control and population flow;
The revolving door is mainly a two-way fast-track control device designed for places with high-level security requirements, which can be used for unsupervised channel management;
The swing door is mainly a restricted-level channel control device designed for places with large channels.
2. General functional characteristics of the channel gate
1. Anti-trailing function: There is a common infrared light band detection area in the channel, and the switch state can be adjusted by software according to the customer's precision requirements, adapting to the application of light bands for different needs, avoiding the shortcomings of point infrared detectors that are easily polluted and affecting the reliability of judgment, It can effectively determine the trailing person of the unread card. When the system determines that tailgating occurs, the system will respond according to the position of the valid cardholder returned by the infrared detector. After the door open signal is issued, there are still some abnormal use that will trigger the alarm system.
2. Abnormal usage:
(1) When the door is closed, the pedestrian entering in the opposite direction walks into the door after the authorized door opening signal is issued. Before passing the first safety photoelectric detection belt, if the reverse detection belt detects that someone has entered, as long as the person does not leave, the buzzer will sound. The alarm will always sound and the door will remain closed, the "Aging" function does not count the time interval at this time.
(2) Reverse intrusion when the door is opened After the door wing is opened, if there is an unauthorized pedestrian entering the door body 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" The function does not count the time at this time, and the door resumes normal operation when the person leaves the second detection zone.
(3) Pedestrians enter in the opposite direction when they leave. The pedestrian passes through the second safety detection area. Before the door returns to the basic state, the second safety detection area detects that someone has entered without a legal door opening signal, and the alarm system issues an alarm. But as long as the protection detection zone still detects a person, the door will not close.
(4) The time gap is about 0.25 seconds from the time when the first detector detects the pedestrian to the last detector that he leaves the first safety detection zone. After the pedestrian leaves the first safety detection zone, the card reader signals In the case of no door opening, the first detection zone detected a pedestrian (trailer) again, the alarm sounded long, and the door was still open.
(5) After the normal trailing pedestrian leaves the protection detection area, the first security detection area detects an unauthorized intrusion, the door is immediately closed, and the alarm sounds long.
