What type of access control system?
Access control, also known as access control system (ACCESS CONTROL SYSTEM). Is a management personnel access to the digital management system. Common access control systems are: password access control system, non-contact IC card (sensor IC card) access control system, fingerprint iris Handheld access control system, etc. The password access control system because of its own security is weak and poor convenience has been eliminated, biometric access control system is high security, but the high cost, due to rejection rate and storage capacity and other bottlenecks And not get a wide range of market recognition. Now the most popular international most popular or non-contact IC card access control system. Non-contact IC card because of its high security, the best convenience and cost-effective access control system mainstream.
Access control system with the most used card types and formats are: EM (ID read only) card, Mifare one (referred to as M1 readable and writable) card, logic card, TM card. Which M1 card and EM card almost accounted for more than 90% of non-contact card market share. If you value the card is the versatility and compatibility, I suggest you use the M1 card and EM card access control system. Other not commonly used cards, do not recommend you to use, because their market share is small, there may be out of the Chinese market, then the future product upgrades and expansion will be a problem. EM card features: character advantage, the highest market share, reading distance is long, the shortcomings are read-only, suitable for access control, attendance, parking and other systems, not suitable for non-fixed consumption system, and poor security, many factories even You can customize the card number according to your request, can not ensure the uniqueness of the card, copy the card easier, so that will have more cards outside to open your access control, to create a threat to security.
Access control system generally includes the postal system, power supply system, the banking system for this type of security requirements for relatively high units ~ some high-end residential also have chosen ~ because it changed the previous security products such as closed-circuit monitoring, burglar alarm and other passive security , In order to take the initiative to control the replacement of the passive monitoring of the way, through the control of the main channel to prevent the criminal from the normal channel of the invasion, and can occur in the crime through the control of the passage of restricted criminals to limit the scope of activities to stop the crime or reduce loss.
