Tips for DIY target cam?

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Re: Tips for DIY target cam?

Post by juststarting » 30 Mar 2018, 7:56 pm

sungazer wrote:Looking Forward to seeing your working model. Also get the run down on it. I was a electronics geek and back in the day I would have been all over this. I have to say I have lost a lot of that passion. I just look on now with appreciation of those that do.

Ohhh I am very, very, very far from an electronics geeks. I'd really like to understand it a lot better, but I am far from it.

sungazer wrote:I have seen the wifi aerials that will do the 1000yrd plus at work. The Hexta system ues them a long rectangular about 25 cm they actually point at the low power device at each end the computer and the transmitter at the target. They have enough power and signal pattern out the side and back to make the distance between the target and computer.


Correcto, a panel antenna with line of sight and a car battery to power it. It's certainly possible to do this. It's just not possible for this use case, where I want to have a portable unit I could 'just drop in'.

Someone (million times better at this than me) suggested I look at a different approach, using XBees. Which would work very well. And in some way it's the most elegant and the best solution (maybe version 2 later). They are small transmitters used in industrial control systems (think activating a water pump over 10km away over RF). They are very cheap and would definitely work over 10s of km's, but it's the path of the most resistance to do with custom software setup... Also, images received would be either of low quality or transmission would be very slow, but high quality images would be retrieved directly form the transmitter after shooting, I suppose. Definitely doable, just chose not to if I can achieve this quicker with very common and cheap components.

As for the bullseye camera system, I like them. Cost is very prohibitive though, especially for their top model (which is really the only reasonable model and generally for what it is). I had a look inside the box they come in - it's a camera, router and a battery. They are all pretty large too, few minuses there. I am guessing you are paying for the software and niche market. Ignoring software, I thought, hrmmm, I can do this in my head now, so this is where I am (I will think about image editing later).
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Re: Tips for DIY target cam?

Post by Eddie » 31 Mar 2018, 9:15 am

I have built a system from cheap banggood stuff as well. Eachine inexpensive TX and rx and used and old video camera. I use one of those ray gun shaped directional antenna for the rx. I have had it working at 900m. I need a better monitor. How did you use your tablet as Monitor?
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Re: Tips for DIY target cam?

Post by Eddie » 31 Mar 2018, 11:41 am

Sorry, read back and saw the Lieber unit for the av to tablet signal. The rx and TX i use are 5.8ghz 200m.
I see Matlab has some image processing features. I just don't know how to use it.
More surfing needed.
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Re: Tips for DIY target cam?

Post by Diddums » 11 Apr 2018, 4:14 pm

You could use a drone if you have one. Set it up stationary near the target and just stream the feed to you phone or tablet.
My DJI Mavic has a 7km range for 720p footage.
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Re: Tips for DIY target cam?

Post by juststarting » 11 Apr 2018, 5:43 pm

Drones use FPV cameras and rf transmitters... What I posted above, just minus the motors lol Surrounded by tech giants here lol
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Re: Tips for DIY target cam?

Post by juststarting » 11 Apr 2018, 5:50 pm

The AV equipment on the drone would be the same I recon. The drone is a different story.
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Re: Tips for DIY target cam?

Post by TassieTiger » 14 Dec 2018, 1:24 pm

This is quite interesting - has it progressed at all?

I’m toying with the idea myself - was considering cabling the distance and using a jay car door entrance cam powered by 12v inverted to 240v.

Either that or use an old work ubiquitous microwave dish to link a cheap sports action camera - daylight shooting could be powered from 200w solar panel / battery. Heck, up battery capacity and drop in some leds for night time target shooting practice at distance and watch hits in real time on tablet or laptop.
Which way to go - Bunnings often runs 250m 1.9mm dual elec cable for $70-$80...but I unscrupulous devil and cable might be dead. Hmmm...
Has anyone else done something similar ??
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