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With the rapid development of modern technology, the access control system also has a variety of identification methods, from the initial password identification, to card identification, to biometric identification, and two-dimensional code access control systems, and continues to develop. So, which one of the access control system identification methods is better? Here are the advantages and disadvantages of the four access control system identification methods. Users can choose according to their actual situation.
1. Password identification: identify access permissions by checking whether the password is correct. These products are divided into two categories: one is the ordinary type, and the other is the out-of-order keyboard type (the numbers on the keyboard are not fixed and change automatically from time to time).
Ordinary type: advantages: easy operation, no need to carry a card; low cost. Disadvantages: Only three groups of passwords can be accommodated at the same time, which is easy to leak and has poor security; no entry and exit records; only one-way control.
Out-of-order keyboard type: (the numbers on the keyboard are not fixed and change automatically from time to time): advantages: easy to operate, no need to carry a card, and the safety factor is slightly higher. Disadvantages: The password is easy to leak, the security is still not high; there is no entry and exit records; it can only be controlled in one direction, and the cost is high.
2. Card identification: The access authority is identified through card reading or card reading plus password, which is further divided into magnetic card and radio frequency card according to the card type.
Magnetic card: advantages: low cost; one person, one card (+ password), general security, can be connected to a microcomputer, and has a record of opening the door. Disadvantages: cards and equipment are worn and have a short life; cards are easy to copy; two-way control is not easy. Card information is easily lost due to external magnetic fields, making the card invalid.
Radio frequency card: advantages: card, equipment without contact, convenient and safe door opening; long life, theoretical data of at least ten years; high security, can be connected to a microcomputer, have door opening records; can achieve two-way control. Cards are difficult to copy. Cons: Higher cost.
3. Biometric identification: identify the entry and exit by examining the biometrics of the personnel. There are fingerprint type, palm type, iris type, facial recognition type, and finger vein recognition type.
Advantages: Excellent security from a recognition perspective; no need to carry a card.
Cons: High cost. Recognition rate is not high, high environmental requirements, high user requirements (such as fingerprints can not be scratched, eyes can not be red and swollen, bleeding on the face, or the number of beards), inconvenient to use (such as iris and facial recognition Type, the installation height position is fixed, but the height of the user is different).
4. Two-dimensional code access control system: Combining the characteristics of two-dimensional code, valid vouchers for two-dimensional code will be sent to the entry personnel, and the two-dimensional code will be easily scanned on the reading machine, which is convenient for the management of entering and exiting personnel.
Beijing Jiahua Guardian focuses on building intercom security services, which can provide inductive, password, inductive + password; swipe, swipe + induction, swipe + password; fingerprint, fingerprint + password (online and offline) Installation services for various types of access control systems , service hotline 18810314117