| 摘要 |
An access control controller 10 comprises an internet protocol (IP) communication module 306 and at least one programmable module 301, 304 configured to cause the access control controller to independently initiate secure IP communication to an access control server. The communication between the controller 10 and the server is only originated by the controller. During the communication the controller is configured to receive management information from the server including updated access right data. The controller 10 is configured to control physical access of a physical access device 308 such as a door, turnstile, lid, hatch, or a gate. The controller can preferably ignore all communication initiation requests from external entities and log these requests. The secure IP communication can be implemented using encrypted communication and can use internet socket port 443. The updated access right information can include added, deleted or changed access rights; credentials for which access will be granted or credentials for access denial. The use of controller initiated secure IP communications allows a secure access control system to be used since a third party cannot gain access to the access controller since the access controller will not respond to communication requests. |
