From: Jean-Michel Friedt
Subject: Re: Storing / Retrieving Video Data with RAM
Date: Wed, 13 Nov 2002 18:16:55 +0100
Organization: IMEC Belgium, http://www.imec.be
References: <36C7FAF578DB3B42.2D5D36053AB02069.6012E473C7158C02@lp.airnews.net> <3DD25E3B.1150ECC5@imec.be>
NNTP-Posting-Date: Wed, 13 Nov 2002 17:16:56 +0000 (UTC)
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Doug Hortvet wrote:
> The end use for this system is to record live video during a model
> rocket flight, hence the need for small size and light weight.
> I envision using a small single board CCD that outputs NTSC,
> sufficient RAM to store 30-45 sec. of video, and whatever intermediate
> electronics are required to get the encoded / compressed video data
> into and out of the RAM.
I've been looking at putting a video camera in a remote controlled
plane for a long time. Even started building the video transmitter
for it, until I concluded that commercial video transmitters will
be much less trouble and cheaper to get than doing everything myself
(even though I have access to all the necessary test equipment for
calibrating the xmitr up to 1.2 GHz). A commercial transmitter will
cost around 1000 US$, can broadcast directly to a TV (ie video out)
and will get you a decent range if you build a small parabola or
high gain yagi (especially for a rocket that should be feasible).
Video conversion+storage will definetly not fit in a hobby grade rocket.
I would have advised PC104 board+frame grabber, but I'm not even sure
these will accept the hi acceleration during launch.
Have a look at VTQ.de (Germany -- for model planes) and CCTVFORLESS.com
(Canada) which should have what you are looking for.
Good luck, let us know if your project succeeds, Jean-Michel