| 摘要 |
A latch arrangement includes power control means which can be energised to prevent opening of a door latch, by controlling the movement of a release mechanism within the latch. A sensor is provided for monitoring the operative state of the door latch release mechanism. In the event of an unauthorised attempt to open the door, as detected by the sensor, the power control means is energised, thereby preventing unauthorised opening of the latch. The sensor can monitor the direct movement of the door handle. Additionally or alternatively, a sensor can be provided to monitor an internal component within the latch release mechanism, so as to monitor movements indicative of movement of the door handle. |
