| 摘要 |
<p>The lighting device (42) comprises means of switching a light source on and/or off with search means capable of detecting and identifying surrounding objects (34, 36, 38, 40) present in close proximity to the device and provided with radio transmitter circuits, for example of the Bluetooth type capable of interfacing with the device. The device comprises switch-off and possibly switch-on, means which collaborate with the search means (20) to detect the appearance or disappearance of surrounding objects in the radius of action of the lighting device, and of initiating the switching-off of the light source upon detection that at least one surrounding object has disappeared, conditionally according to predetermined criteria. Control is had essentially without the surrounding objects transmitting switch off or switch-on commands to the device. A plurality of devices of the same type may be configured, with respect to one another and with respect to the surrounding objects they have detected, into a hierarchical network.</p> |
