Wireless Video Broadcast?
Posted 04 April 2016 - 05:25 PM
I have still got the camera and screen that came with the drone and I'm fairly sure it will handle the range i just need to get same adaptors to link them to the CCTV box and a monitor,
the back of the CCTV box looks like this
Screen Shot 2016-04-04 at 18.19.55.png 277.78K 6 downloads
so basically is there a simple connection/ adaptor anyone knows of that i can rig between the back of the box (v-out is probably easier than VGA or HDMI) and the transmitter in the camera on the drone?
Posted 04 April 2016 - 05:53 PM
That is almost certainly the same as the video sender that came witht he drone, so what connections does that have?
Posted 04 April 2016 - 06:12 PM
ill go find a small screwdriver to take the camera apart
Posted 04 April 2016 - 06:55 PM
The cctv box has a composite video output that looks to be on a BNC socket (TUO-V, V for video)
I'm not understanding the connections to the video sender. The tin box with what looks like an F socket I presume is the transmitter module and an aerial of some sort plugs into that F socket.
The third picure the red and black is probably power. So you might be right that the yellow is video.
Posted 04 April 2016 - 07:12 PM
having taken the camera apart (last picture) it looks it might be simpler than i thought.
I'm hoping if i plug the power plug (bottom of pic 3) directly into the charger.
then buy a find a BNC fitting?
attach the yellow to the centre pin and hurray.
we will worry about the other end later
Posted 04 April 2016 - 07:22 PM
Probably easier just to buy any made up cable you can find that has a BNC plug on one end, cut off the other end (it doesn't even matter what was on that other end) and then you will have a coax cable to connect to your video sender.
Being a hoarder of
Edited by ProDave, 04 April 2016 - 07:23 PM.
Posted 04 April 2016 - 07:28 PM
then same back on the otherside assuming the receiver is similar to the transmitter and just run it into the aerial port
happy days, thanks for your help
Posted 04 April 2016 - 07:32 PM
Most tv's have an AV imput usually a yellow phono socket, with corresponding red and white phono sockets for the stereo audio.
Edited by ProDave, 04 April 2016 - 07:33 PM.
Posted 04 April 2016 - 08:22 PM
So, to power the camera you're going to need the power system from the quad as well.
What I'm not clear on is if you're also looking to use the wireless video transmitter in the quad as well, to the receiver in the control box/screen. That will probably be a 5.8GHz link, as that's the most common frequency these things use. If you're using the wireless link, then the chances are that the receiver and the screen on the control box will run on around 9 to 12 V and the receiver that feeds into the screen will probably have a yellow 1V p-p composite video on a yellow lead, along with the power (red) and ground (black).
One problem you may find is that some of these Chinese cameras run on NTSC, rather than PAL, and the chances are that the CCTV recorder only accepts PAL. I'd guess you have a 50/50 chance that it'll be PAL, as there probably won't be any marking to say which system it is (NTSC is the US standard, PAL is the UK standard).
Posted 04 April 2016 - 08:57 PM
for now i just need to get the the output from the magic box to broadcast using the drone cameras transmitter.
Posted 04 April 2016 - 09:14 PM
Edited by jsharris, 04 April 2016 - 09:14 PM.
Posted 04 April 2016 - 09:21 PM
how did you connect the camera output to the transmitter and more importantly how did you power it?
did you use adaptors or a soldering iron?
Posted 04 April 2016 - 09:31 PM
I took the yellow video feed from the camera and soldered it to the yellow video in lead on the transmitter, and did the same for the black (ground) and red (+12V) wires. I drilled a hole in the bottom of the camera case, added a rubber grommet and fitted the 5.8GHz transmitter aerial through it, so it pokes out the bottom.
On the receiver side I just powered the receiver from the 12V power supply that runs the DVR and the small 7" monitor, with the receiver aerial just fitted on to the receiver connector and poking up. The CCTV camera transmits reasonable quality video indoors, and I can watch it on the screen, record it on the DVR or stream it to a PC using a cheap video to USB converter (the one I bought to record video from the borehole camera to my laptop last year)
Posted 04 April 2016 - 09:38 PM
but from the sounds of what you are saying is really is going to be fairly simple
ill get the wire strippers out tomorrow .....
thanks again for the help guys
Posted 04 April 2016 - 09:50 PM
its all built into the circuit board
Screen Shot 2016-04-04 at 22.47.15.png 370.2K 5 downloads
top right is the aerial sticking up and on the other side is a little screen
Edited by ConstructionChannel, 04 April 2016 - 09:51 PM.
Posted 05 April 2016 - 07:10 AM
The snag is that the modules vary a bit, there are two or three different makes with different pin outs, so you'll need to try and trace where the video out feed to the screen driver chip is.
Alternatively, you could just not use that link and buy a transmitter receiver, set them both to the same channel (they have DIP switches to set the channel) and you will have units that both work on 12V and will given you a solid, fairly long range, video connection. There are loads on ebay, like this pair of 8 channel units: http://www.ebay.co.u...U0AAOSwpDdVVDxK