Apart from warning two trains about close proximity with each other, the KR’s ACD system also warns the road users at a level crossing about the approach of a train. Here the LED lamp flasher responds to the arrival of a train. During operation, concentric rows of the red LED lamps light up alternately to attract the visual attention. The same unit has a loud hooter which sounds at the same time as the train approaches within three km of the location – all triggered by the ACD. The flasher/hooter system is powered by a solar cell powered battery, thus operates independent of any external power connections. (Apurva)

Date: 2007-02-21
Owner: Gallery Administrator
Full size: 800x622
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ACDflasher_2007_02_14
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that's what I meant, as LEDs don't need much power the solar cells won't be hard pressed to charge the battery.. :-)
Posted by Aseem Johri on 2007 Feb 22 15:12:13 +0000
It is not the solar cells that operate the LEDs; rather the solar cells are used to charge a battery which is used as a power source for LEDs.
Posted by M S M Saifullah on 2007 Feb 22 02:58:35 +0000
as far as my limited knowledge goes..LEDs won't be heavy on solar cells?
Posted by Aseem Johri on 2007 Feb 21 18:56:00 +0000
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