Modern society pays more and more attention to security and anti-theft awareness. As a guarantee for public areas such as residential buildings, office buildings, and shopping malls, the access control system plays a great role. With the development of science and technology, the technologies used in the access control system are becoming more and more diverse, and there are more and more application fields, such as turnstile barrier gates. So what functions should a complete access control system have?
1. Compatibility and Extensibility
When purchasing products, hardware compatibility and scalability are of course the first choice. For example, the input devices of some domestic manufacturers are compatible: card readers, fingerprint machines, palm-type instruments, out-of-order keyboards, etc., and can share a communication bus with the fingerprint instrument and the palm-type computer. Card reading technology can be compatible: magnetic card, barcode, Wiegand, biometrics and many other technologies.
2. Flexible configuration and networking
In addition, whether it can provide serialized products and provide users with comprehensive solutions, it is also important to evaluate. Ideal manufacturers and suppliers should be able to select different access control software and controllers according to the different scales and functional requirements of the system. The system network can also be flexibly formed according to the actual situation of the site. For example: when the control area is relatively dense, the RS485 bus structure can be applied; when the control area is relatively large or not in the same location and does not require real-time monitoring, dial-up networking can be done through Modem dial-up network; when the control area is relatively large and not in the same location , or when the construction site already has a local area network, and the server is required to monitor the system in real time, you can choose the TCP/IP networking mode, which can realize local and remote multi-site multi-level management, and can realize global networking. In the same system, the three networking methods can be applied at the same time, even if there is a problem with an individual controller, it will not affect the entire system.
3. Security
The security of the access control system is also crucial. When the communication between the bus and the PC is interrupted, it cannot affect the work of the controller. All setting commands, entry and exit records should be stored in the controller, and when the communication is restored, the data will be uploaded to the server to ensure that the data is not lost. When one controller fails, it will not affect the work of other controllers. The security of communication is also important, for example, some products have “encryption protection” function, whose software allows each end user to encrypt the communication protocol with a 32-bit password. The corresponding controller will not accept any unencrypted commands other than talking to the software the user is using. The encrypted key is set by the user and cannot be decrypted by anyone including the developer of the system, which has extremely high security.
4. Rich software functions
In a better access control system, the access control controller is networked through RS485 bus, TCP/IP network, Modem and other communication methods and managed uniformly through the access control management software. The system server that installs the software sets the system parameters of the access control master controller through the network, and collects all data including access control card readers, alarm detectors and other data in real time. , the system will perform corresponding actions according to the preset program, including: opening/closing the controlled door; sending an alarm signal to the alarm center; and controlling the corresponding camera to monitor or record the alarm location; turn on/off lighting, air conditioning and other functions such as corresponding actions.
