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1. System significance
1. Reliability, loss prevention and crime prevention are the main purposes, with extremely high reliability
2. Safety, the safe entry and exit of legal personnel and vehicles ensures the safety of the supervision area,
3. Functionality. Not only can it be applied to the access control, attendance management, security alarm, parking lot control, elevator control, building automation, etc., of smart buildings or smart communities, but it can also be linked to other systems for control and other control functions.
2. System architecture and program description
Access control, also known as access management control system, is a digital management system that organically combines information technology, electronic technology, and mechanical locks to identify the appropriate level of authority for entering and exiting personnel, and perform corresponding control.The access control system designed in this scheme is based on wirelessRadio Frequency IdentificationTechnology, a powerful intelligent network access control system composed of management system, controller, card reader, low-frequency activator, electronic lock, etc., personnel can hold a legal low-frequency card and pass the card reader device automatically A system that controls authorized entry or illegal alarm. The access control system replaces the traditional mechanical keys, reduces the trouble of key management, and effectively avoids the loss of keys. At the same time, it can record and query the information of entering and exiting personnel, which has incomparable superiority with ordinary mechanical locks.
2.1, system architecture
2.2, system description
In the above picture, the low-frequency activator antenna, similar to the induction coil, is installed inside and outside the door. When a person carries a card and enters a distance of 1-3 meters from the door, the card is activated, and the activated card sends a signal to the outside world. It is read by a card reader near the door, and then the controller is used to control the switch of the door. Two antennas are distributed on both sides of the access control. In this way, the direction of entry and exit of personnel can be judged according to the sequence in which the card is activated by the activator antenna.
2. Case introduction
Sichuan Fire Fighting Force Yunnan Fire Fighting Force
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