Wuhan access control, Wuhan fingerprint access control system price classification and advantages

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1) The access control system classifies Wuhan access control machines according to the way of entering and exiting, Wuhan fingerprint access control system classification advantages and prices (1) Password identification:

Incoming and outgoing permissions are identified by verifying that the entered password is correct. There are two types of these products:

a) Normal type: The advantage is easy operation, no need to carry the card; low cost. The disadvantage is that it can only accommodate three sets of passwords at the same time, and it is easy to leak. The security is very poor; there is no entry and exit record; only one-way control is possible.

b) Disordered keyboard type (The numbers on the keyboard are not fixed and change automatically from time to time): The advantage is that it is easy to operate, no need to carry the card, and the safety factor is slightly higher. The disadvantage is that the password is easily leaked and the security is still not high; there is no entry and exit record; only one-way control is possible. high cost.

(2) Card identification: Wuhan access control machine, Wuhan fingerprint access control system classification advantages and prices to identify access rights by reading or reading card plus password. According to the card type, it is divided into:

a) magnetic card: The advantage is lower cost; one person a card, security, can be connected to the computer, there is a record of the open door. The disadvantage is the card, the equipment is worn out, the life is short; The card is easy to duplicate; It is not easy to control in two directions. The card information is easily lost due to external magnetic fields, rendering the card useless.

b) RF card: The advantage is that the card and the device are not in contact, the door is convenient and safe, the service life is long, the theoretical data is at least ten years, the security is high, the microcomputer can be linked, and the door record can be opened; the two-way control can be achieved; the card can hardly be copied. The disadvantage is the higher cost.

(3) Biometric identification: Wuhan access control machine, Wuhan fingerprint access control system classification advantages and prices through the inspection personnel biometrics to identify the access. Fingerprint type, iris type, face recognition type.

Advantages: Excellent security from the point of view of identification; no need to carry cards.

Disadvantages: The cost is high. The recognition rate is not high, the environmental requirements are high, and the user is highly demanded (for example, the fingerprint cannot be scratched, the eye cannot be swollen and bleeding, the face cannot be injured, or the number of beards), and the use is inconvenient (such as iris type and face recognition. The height of the installation is fixed, but the height of the user is different.)

2) The access control system is classified according to the design principle (1) The controller comes with a card reader (identifier): Wuhan access control machine, Wuhan fingerprint access control system classification advantages and prices The disadvantage of this design is that the controller must be installed outside the door, so Part of the control line must be exposed outside the door so that pedestrians can easily open the door without a card or password.

(2) The controller and reader (identifier) ​​are separated:

This kind of system controller is installed in the room, only the reader input line is exposed outdoors, all other control lines are indoors, and the reader transmits the digital signal, therefore, no one can enter the door without a valid card or password. . This type of system should be the user's first choice.

3) The access control system is classified according to the microcomputer communication type (1) Stand-alone control type:

This type of product is the most common and applies to small systems or units where installation locations are concentrated. Often used in hotels, guesthouses.

(2) Bus communication:

Its advantages are low investment and dedicated communication lines. The disadvantage is that due to the constraints of the bus load capacity, the system size is generally small; the implementation of real-world monitoring cannot be realized; it is affected by the distance of bus transmission (the 485 bus can theoretically reach 1200 meters, but the actual construction can reach 400~600 meters. It is relatively far away. It does not apply to occasions where points are scattered. In addition, once installed, the location of the management center cannot be easily replaced, and network control and off-site control are difficult to achieve.

(3) Ethernet network type: Wuhan Access Control System, Wuhan Fingerprint Access Control System Classification Advantages and Prices The technical content of such products is high, and its communication method uses the TCP/IP protocol commonly used in the network. The advantage of this type of system is that the controller and the management center transmit data through the LAN. The location of the management center can be changed at any time. It is easy to implement network control or remote control without rewiring. Suitable for use in large systems or dispersed locations. The disadvantage of this type of system is that the stability of the communication part of the system depends on the stability of the local area network.