doorentry

Door entry refers to an access control system that regulates entry to a building or area through a door. It combines hardware and software to verify a person’s identity and grant or deny passage, improving security and occupancy management.

Typical components include an identification method (key card, keypad, mobile credential, or biometric reader), a door entry controller, door actuators such as magnetic locks or electric strikes, and power and communication infrastructure. Many systems also include an intercom or video door station for occupant verification and a door sensor or request-to-exit device to monitor passage. Modern installations may rely on cloud or networked services to manage credentials and events.

Operation generally follows a sequence: a user presents credentials at the door entry reader; the controller checks authorization against a local database or centralized server; if approved, the door is unlocked for a predefined period. Some configurations require a second factor or a supervisor’s approval. All entry events are typically logged for auditing and security monitoring.

Types range from standalone systems that operate without network connectivity to networked or centralized systems that integrate with building security, IT infrastructure, and video surveillance. Residential door entries emphasize convenience and mobile keys, while commercial setups prioritize scalability, robust audit trails, and compliance. Biometric, mobile-based, and cloud-managed credentials are increasingly common.

Security considerations include access policies, anti-passback controls, alarm integration, tamper detection, and choosing between fail-secure and fail-safe configurations. Enrolment, credential revocation, and privacy protections are important design factors in door entry systems.