I. System Positioning
Access Control System (Door Access System) is the "smart gatekeeper" and "permission gateway" of the security system. Its core mission is tocontrol the "doors" and manage the "people"— through precise management of personnel entry/exit permissions, achieving "those who should enter can enter, those who shouldn't cannot get in," building the first line of security for parks, office buildings, residential communities, server rooms, finance rooms, and other premises. The access control system upgrades traditional "human-guarded doors" to "system-managed doors," delivering triple value in security management, attendance management, and traffic efficiency.
II. Equipment Composition and Functions
| Equipment | Core Function | Selection Key Points |
|---|---|---|
| Access Controller | System control core, responsible for permission verification and unlock commands | Select by door count (single door / double door / four doors), supports offline operation, TCP/IP networked management, and fire alarm linked unlocking |
| Card Reader | Collects card credentials and verifies personnel identity | Supports IC/ID cards, CPU cards, and NFC mobile phone card reading; waterproof and dustproof design, installable both indoors and outdoors |
| Fingerprint / Face Terminal | Biometric verification, eliminates proxy swiping | Face recognition (liveness detection, mask-wearing recognition), fingerprint recognition (optical / semiconductor), enabling "seamless access" |
| Magnetic Lock / Electric Strike Lock | Executes unlocking action, physically secures the door | Magnetic lock (holding force ≥280kg, standard for access control), electric strike lock (for glass doors / emergency exits), supports fail-safe unlocking (fire code requirement) |
| Exit Button | Triggers legal exit for authorized personnel | One-touch unlock with built-in indicator light; optional infrared sensor / anti-tailgating exit reader |
III. Core Functions
Fine-grained Permission Management— Flexible authorization by personnel, department, time period, and door point, e.g., employees can access during workdays 9:00-18:00, finance room restricted to finance staff only, server room limited to authorized administrators, achieving "one person one permission, one zone one policy"
Multiple Door Opening Methods— Supports card swiping, face recognition, fingerprint, password, and mobile NFC unlocking, with combined verification options (e.g., "card + password" dual authentication), balancing security and convenience
Personnel Entry/Exit Control— Fully records every entry/exit event (person, time, door point, method), creating traceable access logs; supports real-time door status monitoring, remote unlocking, blacklist interception, and temporary visitor authorization, enabling end-to-end personnel management
Exception and Linkage Handling— Automatic alarms for illegal card swipes, forced entry, and doors left open too long; linked with fire alarm system to automatically release all door locks during fire emergencies for evacuation; integrated with video surveillance to capture on-site snapshots at the moment of door opening, providing evidence for incident tracing
IV. Solution Advantages (Based on Yunzhi Company's Practice)
Leveraging its weak-current intelligent system integration capabilities, Yunzhi Company provides integrated solutions combining access control with video surveillance, intrusion alarm, attendance, and visitor management systems, achieving full-scenario control of "face recognition access control + video-linked capture + attendance management + visitor reservation." These solutions have been deployed in projects such as the Zijun Tianxi Smart Digital Community and park office buildings, helping clients achieve safe, efficient, and intelligent entry/exit management.