| 摘要 |
<p>The device has a luminosity detection sensor (1) e.g. photo resistor, a movement detection sensor (2) e.g. photovoltaic cell, and a noise detection sensor (3) e.g. electret-foil microphone, that are connected to signal shaping and amplification circuits (11-13). Signals shaped by the circuits are introduced in a microcontroller type programmed processing unit (14) for performing a predetermined operating algorithm. The sensors detect actual presence of a person inside a room to be heated, for adapting an electric heating mode to a comfort mode or an economic mode.</p> |
