门禁系统原理（Access control system principle）.doc

门禁系统原理（Access control system principle） Access control system principle Access control system is one of the high-tech security facilities which have been widely used in China in recent years. It has become one of the intelligent signs of modern architecture. More and more attention in the business intelligence and security today, to import some important organs, scientific research laboratories, archives, and related to the control center, the utilities of the airport and other places beneficial to the peoples livelihood of the staff, to import authorization control. Economic growth sometimes leads to crime, and the pursuit of security leads to higher demands for security systems in modern buildings. The building security system not only includes CCTV and burglar alarm, but also includes locks, security doors, security nets and security personnel to meet the increasing security requirements of the people. - security management functions can be set using the permissions and access time, data input computer can use the persons name, age, position and photos as many as 18 kinds of content, easy to query statistics and verification of identity; ---- attendance function, according to the actual situation will be grouped into groups, for various holidays, work attendance record; - patrol function, can record the patrol route, time of occurrence and patrol point events such as door damage, elevator fault etc.; ---- a variety of access control combination, you can set the door locks for only out, long open, timing switch and other functions and combinations; Emergency response and statistics function, the system can display the physical location of the designated cardholder on the computer, so as to facilitate timely contact. In case of fire and other emergency, the fire door will automatically open, easy to escape, access can also be automatically opened; when the illegal to import, will automatically alarm; the system can also according to customer needs, print out all ki