Tips for DIY target cam?

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Re: Tips for DIY target cam?

Post by juststarting » 12 Apr 2016, 8:12 pm

Like with anything else technology related, it is either an enabler, allows me to burn more powder as you put it; or an epic f*** up that I will use as a target! Wet shall see :)
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Re: Tips for DIY target cam?

Post by brett1868 » 12 Apr 2016, 11:48 pm

I have a 1500mw 900mhz video transmitter along with all the relevant receivers and small LCD montitor. Might have a crack at building something similar to the commercial target cam. They use WiFi and software to track / record the shots which I couldn't do with a conventional setup but should do the job. Maybe a screen protector and whiteboard marker on the monitor would allow me to "Mark" the shots. Something to work on...

Ready Made RC in the US have some good stuff and they are fast to post.
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Re: Tips for DIY target cam?

Post by juststarting » 12 Apr 2016, 11:55 pm

Hence, I think sending images to a programable device or having a programable device on the target end is the way to go, since you can process the image files. Reason, I gravitate to RPi is that if you put a hole in it, it's $40.

I was just reading (http://stackoverflow.com/questions/3027 ... cond-image) how to do image diffs (lots of ways by the way, need to test a few promising ones). Say N and N+1 and render image with highlighted differences.
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Re: Tips for DIY target cam?

Post by petemacsydney » 13 Apr 2016, 10:07 am

sub'd, looking forward to seeing what we all come up with!
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Re: Tips for DIY target cam?

Post by Releb » 15 Apr 2016, 10:18 am

Yeah I'm interested to see some in action.
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Re: Tips for DIY target cam?

Post by petemacsydney » 21 Apr 2016, 11:10 am

well, haven't started my build yet as my time has been taken over by reloading and i daughter obsessed with cooking and making everything (supervision required!).

found an interesting piece of tech though, to convert a 5.8ghz transmitter to wifi signal so i can do away with the LCD screen and just use my mobile phone. For those using wifi in their builds - Are you using something similar to this to convert the analogue cam A/V feed to wifi?

http://www.hobbyking.com/hobbyking/stor ... source=EDM
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Re: Tips for DIY target cam?

Post by Rocker » 17 Jun 2016, 2:05 pm

Phone sounds like an idea.

Someone must to an app that's about right for what you want already mustn't they?
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Re: Tips for DIY target cam?

Post by juststarting » 15 Sep 2016, 1:40 pm

Can someone or a few of you do me a favour and post 3 or 4 photos (4 or more preferred) of their targets at a range, has to be the same target - before any shots, after the first shot, after second shot, etc. I am messing around with image processing, before I start thinking about shoving it into small cheap hardware.

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Re: Tips for DIY target cam?

Post by juststarting » 15 Sep 2016, 1:41 pm

...a good mix of separate holes and overlapping holes would be good too.
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Re: Tips for DIY target cam?

Post by juststarting » 11 Jun 2017, 1:29 pm

Alright, so I had some free time and I thought I'd comeback to this idea and get my geek on.

Image
Coin for scale. But I will pack it into something a little larger later.

So far I am up to about $80 worth of hardware. I am using older model of Raspberry Pi (small, embedded computer). Newer version (if an older version ends up with a hole in it, lol) will drop the price to about $50... A camera module, battery pack; and USB WiFi card with somewhat of a high gain antenna. I am hoping to stretch it out to about 600m with current setup, as long as there's a line of sight between the rig and a phone or a tablet. If not, then power options will need to be tweaked, but I am told by folks much better than me at WiFizzz wizardry that it's definitely doable well beyond that range, with small tweaks. Will see how I go with this first.

Anyway, hardware is done. Camera is working. Now setting up WiFi access point to connect to, then some sort of nice little web interface and see how we go :)

Will this work, yes, 100%. Will this have the range I am after - most likely. Will this go to 1000m - probably with better battery pack and alternative wiring setup, which would add maybe $20 cost for a powered USB hub to provide dedicated power to WiFI card.

Will it highlight new holes on target - yet to be determined. Tested some thoughts, definitely works, but not in a pretty way I'd like it to be. But, doable and that's a start. Anyway, nice Friday/Saturday evening project.

Will keep you posted :)
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Re: Tips for DIY target cam?

Post by sungazer » 11 Jun 2017, 5:42 pm

Sounds great. I am really looking forward to see what solution you have come up with. The caliber makes a big difference in being able to see the holes well. A 308 I can see on a plain white background with the scope on 32* at 500y the .243 It is a struggle to see the holes. When at the range and working in the butts the 223 holes and 6mm holes can be buggers to find.

Always wanted to have a go with the Pi never took the jump getting a bit lazy in my old age.
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Re: Tips for DIY target cam?

Post by pomemax » 11 Jun 2017, 6:01 pm

http://www.busywww.com/cameraremote.aspx bet you have old mobiles not sure of the range you could look at this sort of thing
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Re: Tips for DIY target cam?

Post by juststarting » 11 Jun 2017, 6:20 pm

You could, Bentaz. You could even get an app that takes images on motion... But. What if there's no signal? And paying for data SIM is kinda sucky too.
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Re: Tips for DIY target cam?

Post by juststarting » 11 Jun 2017, 6:21 pm

...but really, a wise bearded weirdo once said there's is no kill like overkill :)
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Re: Tips for DIY target cam?

Post by juststarting » 11 Jun 2017, 6:25 pm

pomemax wrote:http://www.busywww.com/cameraremote.aspx bet you have old mobiles not sure of the range you could look at this sort of thing


Conceptually, the same thing. But having it run on a dedicated computer gives a bit more flexibility with what can be done in terms of taking photos or videos. How it's streamed and most important, wifi range.

That said, this is what I had around the house... Minus camera module, I did buy that specifically for this project. Rest is just recycled old projects. If I had old phones and could power a wifi router for long enough with a small battery, I'd probably use that...
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Re: Tips for DIY target cam?

Post by sungazer » 11 Jun 2017, 6:51 pm

The purpose built ones are really expensive a 300m one is about $500 and about $900-1200 for a 1km one. It seems really expensive considering the technology is nothing really special or purpose designed for it.
hanging out to see a finished gadget what you are aiming for re the software to determine group size is something a bit special.
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Re: Tips for DIY target cam?

Post by juststarting » 12 Jun 2017, 12:23 am

Alright, so everyone is sleeping and it's time to get back to it... Granted I am sitting right next to the antenna, but hardware, router and programatic camera control part is done.

Image

Tomorrow will go for a walk with a rangefinder and see how far the signal will stretch...


*router, i.e. making it run as a WiFi access point, so I can connect and control it from my phone.

Random thought, since this is a router after all, I could even add a second WiFi dongle and then a cheap 4G hotspot, to upload images somewhere in real time. Arghhhh must resist the urge to over engineer already over engineered 8-)
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Re: Tips for DIY target cam?

Post by juststarting » 12 Jun 2017, 12:34 am

...aaaaand some digging through my draw of hardware I refuse to throwout... Hoping the panel antenna will do it.

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