| 摘要 |
A sensor node (5) for a window or door, for enabling remote monitoring of the window or door, is herein presented. An indicator unit (3) arranged to wirelessly communicate with the sensor node (5) is also presented. The sensor node comprises a sensor arranged to detect whether the window or door is in a locked position and to generate a signal which comprises lock status data relating to the lock status of the window or door, and a transmitter arranged to wirelessly send lock status data and sensor node identification data to one or more indicator units (3). The transmitter is in a first state arranged to send lock status data and sensor node identification data to indicator units which are not paired with the sensor node, and is in a second state arranged to wirelessly send lock status data and sensor node identification data only to an indicator unit (3) which is paired with the sensor node (5). The sensor node (5) further has a receiver unit for being able to receive instructions from indicator units (3). The indicator unit (3) is arranged to, via a wireless receiver unit, receive lock status data and sensor node identification data from a plurality of sensor nodes (5) and to, via a wireless transmitter, send a first instruction to a sensor node (5) to set the sensor node in its second position. A system (1) for wireless remote monitoring of the lock status of windows and/or doors is further presented. |
