Key card system is an electronic lock mechanism that utilises cards embedded with either a magnetic strip or an RFID (Radio Frequency Identification) chip as keys. These cards grant or restrict access to secured areas when interfaced with card readers. This technology is prevalent in environments like hotels, offices, and residential buildings, where security and controlled access are priorities. The system's architecture typically includes a central database that manages the credentials of cardholders, ensuring that access permissions are updated and monitored in real time.
These systems often employ encryption and security protocols to prevent unauthorised access and duplication of access cards. Innovations in key card technology include the integration of biometric data, such as fingerprints or retinal scans, further enhancing security. The data on the card communicates with a reader device, which then cross-references information from a central database to authenticate the cardholder’s identity and access rights. The simplicity and efficiency of key card systems in managing access control make them an indispensable tool in modern security management. Their adaptability allows for integration with other building management systems, providing a holistic approach to secure infrastructure management.