LinuxQuestions.org

LinuxQuestions.org (/questions/)
-   General (http://www.linuxquestions.org/questions/general-10/)
-   -   Is there some kind of device for camera which stores pics on a remote location ? (http://www.linuxquestions.org/questions/general-10/is-there-some-kind-of-device-for-camera-which-stores-pics-on-a-remote-location-852368/)

CMartin 12-25-2010 04:42 PM

Is there some kind of device for camera which stores pics on a remote location ?
 
I don't mean cell phones, I know you can mail pictures, but I am talking about some kind of device for DLSR, if such device exists.

So when you take a picture with your DSLR, besides storing the picture on a card, without e-mailing the camera will immediately also save your picture on your HD in a remote location several miles or several hundreds miles away, transporting it there by radio vawes, or G3, or whatever else.

I start thinking about this when I saw an unfortunate tourist on a ferry dropped his camera in the ocean.

Latios 12-25-2010 04:50 PM

There are SD cards with built in wifi or bluetooth capabilities. You can access them with a device close to the camera (e.g notebook) then submit it on

CMartin 12-25-2010 04:56 PM

Quote:

Originally Posted by Latios (Post 4202950)
There are SD cards with built in wifi or bluetooth capabilities. You can access them with a device close to the camera (e.g notebook) then submit it on


Thank you for response. Although I never used such cards, I believe it might be too late to access pics when you drop the camera in a river or the ocean, or when it's crashed under a car, or similar unfortunate situations. But I still think it would be nice when you take a pic, the camera automatically saves the pic elsewhere, not only on your card.

Latios 12-26-2010 05:04 AM

you can probably access it any moment from a pocket pc. set some button on it to do immediate backup

camera dpopped in river - it will take some time for the camera to die, more than enough to backup i think. the bigger problem is that the water might block the signal. i once dropped a working notebook (with open screen and running applications) into clear water - it drowned and the screen went blank when it hit the bottom. i dived after it, took it out in seconds, disassembled, dried, it worked like new even battery and hard drive (had to disassemble the lcd panel to dry between its layers too)

silvyus_06 12-27-2010 07:42 PM

Some thing to send the radio waves through thousands of miles as you say is not possible . Uploading on the internet is bad speed , and costive , especially on mobiles , but it's the only way ... it would take a few weeks to upload all those photos to the internet using a mobile phone and supposing that each image file is around 5 MB ..

CMartin 12-16-2012 04:52 PM

Quote:

Originally Posted by silvyus_06 (Post 4204893)
Some thing to send the radio waves through thousands of miles as you say is not possible .


There is so called SSTV which exists for decades already, and radio-amateurs use it for transmitting files (lot of pics too) from one computer to the other on VHF, UHF, often around the globe via shortwaves. Ham radio operators were exchanging written messages, and software too, long before internet came in our homes.

Files transmitted by radio waves through thousands of miles often arrive incomplete, or with significant noise due to atmospheric conditions which often vary and may be adverse to radio waves propagation in great distances, and/or electrical interference in cities when a receiving antenna isn't properly grounded.

But I was talking about several miles, or several hundreds miles away, not thousands. Transmitting pics or any other files is indeed possible, and ham operators are still doing it with perfect results when distance is not very large. Transmitting in shorter distances via FM within the same city or county works perfect.

Even transmitting around the globe works great too if there are enough radio-relays along the way which pick up the signal, boost it and propagate it further toward the destination.

There is even sstv-spam :) where radio-operaters send out pictures addvertizing their station, or their internet site, p0rn web pages and similar... Google for sstv pics/images/photos...

Some of those "unsolicited" radio adds:
http://www.g4nsj.co.uk/images/sstv2.jpg
http://www.qsl.net/ka8vit/sstv/images/200110072050.jpg

I was asking if anyone know if there is any device that could be attached to a DSLR camera and use the existing way of radio transmitting files (SSTV) to store pictures on a remote location instead of storing pics in a camera.
It needs only a small transmitter and a demodulator to convert binaries into a radio signal. That's how sstv transmitting works.

The way of storing pics via radio waves to a remote location exists. I couldn't find anything about DSLR and SSTV online, so perhaps I am Googling just by wrong keywords or, don't know where to look, or sstv hasn't been implemented in DSLRs attachments. Or maybe it's been implemented under a different name ?

Wim Sturkenboom 12-18-2012 01:48 PM

Do a search for eye-fi; never used it myself, though.

And there are stand-alone image storage/viewer devices; just a collection at bhphotovideo. But they're not automatic.

Pastychomper 12-19-2012 09:33 AM

I thought SSTV was fairly low resolution (or slow) because the bandwidth allowed for an individual amateur transmission is relatively limited. But I'm no expert.

Anyway, for the device attached to the camera, try this Raspberry Pi hack (look for the bit on DSLR part way down the page). It says it can be used to automatically push pictures across a WiFi or other link, so you can pretty much do what you like with it. Add a software-defined radio, maybe, or have a receiving laptop in a waterproof case bolted to the inside of the boat?

dugan 12-19-2012 10:25 AM

If you have a smartphone that takes the same kind of memory card as your camera, then you can get a data plan for the smartphone, put the memory card in the smartphone, and use the smartphone to upload the photos anywhere.


All times are GMT -5. The time now is 11:13 AM.