Date: Mon, 14 May 2007 18:27:48 -0700 From: jekillen <jekillen@prodigy.net> To: wizlayer@gmail.com Cc: FreeBSD Mailing List <freebsd-questions@freebsd.org> Subject: Re: Auto shutdown/restart software for FreeBSD? Message-ID: <c2e48020af74a457f6556ae878c8ee70@prodigy.net> In-Reply-To: <200705132113.15443.wizlayer@gmail.com> References: <23042ea705a53aea5d36bb86a06d3b4c@prodigy.net> <46466861.8000706@hdk5.net> <da9e9eb60705131717n716900dbgbba0e4a141cab075@mail.gmail.com> <200705132113.15443.wizlayer@gmail.com>
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On May 13, 2007, at 7:13 PM, WizLayer wrote: > On Sunday 13 May 2007 07:17:14 pm Aftab Jahan Subedar wrote: >> Would it recharge the battery fully after discharge? I dont think so. >> So you got to recharge the external battery EXTERNALLY after power >> failure. > > What's wrong with that? Trickle-charge the battery and ride the > computers > from the battery at the same time... That's an uninterrupted power > supply. > A voltage regulator, converter, and a few filters will give you a > clean, > constant supply. It will last longer, and it's a lot cheaper in > comparison. > > Actually, this is a project of mine that's been on the back burner for > years > now. I'd like to add a network interface for remote controls, some > health > checking, and test modes, but would have to incorporate an embedded > processor > (serial port and/or USB interfaces are just as possible). > > Being that I've never messed with such, any suggestions as far as a > good > processor to start with? It doesn't necessarily have to be a > processor that > will do the whole kit-n-kaboodle. Right now, I'm just looking for > something > I can learn the basics with. > > I know it's not a BSD-related question, but I figured I'd ask anyway. > > Thanks > > WizLayer > > This is another approach that seems like it would be practical: Use deep cycle car batteries, trickle charge with solar panels. If a desktop computer can run on square wave generated by dc/ac converter, use that as a power backup system, It would have to have some kind of switching system to detect main power drop and switch to the backup system. Perhaps someone would be willing to, with engineering expertise put together servers that would work on laptop batteries, like a laptop. I do have one machine that has Yellow Dog linux (Mac Powerbook 3400c) that runs 24/7 as my backup DNS server. JK
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