| 摘要 |
A system for implementing a control or access function comprises a mobile device 30 having a mobile identifier, a short-range communication interface (near field communication or NFC) and a long-range communication interface. The system also comprises a local device 20 having a local identifier and a remote device 40 comprising a long-range communication interface and a controller. The mobile device is configured for short-range communication 22 with the local device for receiving the local identifier, and the remote device is configured for long-range communication 32 with the mobile device for receiving at least the local identifier and the mobile identifier. The local device may be a passive token, and the remote device may be configured to transmit a control signal to a device in the vicinity of the local device in response to receiving the communication from the mobile device. This may be a locking mechanism for a door 52, lighting or heating system, or power source for one or more devices. Methods and a controller for implementing a control or access function are also described. |
