| 摘要 |
The invention relates to a stand-alone illuminated signalling device for pedestrian crossings, comprising a LED light (10) installed on one side of the pedestrian crossing (9) and two motion sensors (7), one located on each side of the crossing (9). The circuit is autonomously powered by a photovoltaic panel (2) connected to a consumption and load voltage regulator (3) of a battery (4). The invention also comprises a twilight cell (5) connected to the general switch (6) of the circuit so that the device is only activated at dusk, during hours of darkness or in bad light conditions. The motion sensors (7) are connected to three relays and to the LED light (10) so that the light flashes for a programmed period of time. |
