Development of access control technology
With the continuous development of society, people's living standards have also been improved, and automated devices have attracted more attention. Now share some industry information about automatic doors.
The technologies used in these access control systems and the security levels they can achieve differ from each other. For example: optical technology is used in the barcode and graphic ID system to identify the information stored in the barcode and graphic ID; electromagnetic technology is used in the magnetic card access control system. When the cardholder swipes the magnetic card, the system will read the allowed magnetic Characteristics: Wiegand technology is extremely ingenious and still belongs to the category of electromagnetics. The frequency commonly used by inductive technology is generally 110-125kHz. The stronger the frequency, the farther the card reading distance of the inductive access control system. With the continuous improvement of technology, the frequency The reading distance for the 13.56MHz inductive access control system can reach about Im. This type of access control system has many other applications, such as parking lots, various toll systems, and so on. Of course, the most secure access control system should be a system that can identify the biological characteristics of the human body, not the characteristics of the objects held by the person. For example, a biometric system that uses the unique biological characteristics of the human body can identify fingerprints and pupil structures. This will be the access control system. The highest level, but the price is extremely expensive and difficult to accept by the majority of users.
In contrast, the more mature and perfect technology and the more reasonable price is still the inductive access control system. Many experts predict that in 2012 the inductive access control system will replace other access control (such as: electromagnetic access control systems, etc.) to become the leading access control market. There are several reasons why the inductive access control system is quickly accepted by the market:
Simple to use;
Because the system does not have any mechanical wear, long-term maintenance costs are low;
The card has a long life.
The access control system has advantages, and several systems are introduced below.
The traditional magnetic card access control system still has a certain market in a small area. Compared with the access control system using new technology, its low price has become an absolute market advantage, especially now that most users can only afford small Access control system. It is generally believed that magnetic cards have problems such as being easily copied and easily degaussed in the course of use, and the security is not enough.
In order to meet the needs of users at various levels, small new technology access control systems have appeared on the market. This card reading system requires only a few card readers and an independent controller and is suitable for applications with only 1 or 2 entrances. This small system is usually used in conjunction with alarm equipment or electronic locks. This allows some retail or small stores to use this small system for management. The miniaturization of the access control system makes it more and more widely used. The access control system has a variety of small access control systems to choose from.
The emergence of compatible cards allows one card to be used in multiple access control systems using different technologies, allowing users to use one card for multiple purposes. Since this card can be accepted by various card readers: graphic ID. Proximity, bar code, magnetic card, cardholders can use a card to enter and exit different buildings or complete various functions. The flexibility of this card has become a powerful weapon in market competition.
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