Moderator

Wifi Video link

I'm testing a wireless wifi IP camera to see if it's possible to integrate in my UAV system.

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Yes! I know analogue Wireless video is much easier and cheaper, but I think it's time to see if it's possible to make a long range WiFi video link "Secure".

 

For my test I will use a standard wireless D-link IP camera Model DCD-2121 and a Wireless Router D-Link DIR-635

The camera got standard 100mW output and I will try boost this with a WiFi Booster 2W. (not legal I know).

 

3689399509?profile=originalCheap 2W 2.4 Booster from Ebay.

 

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1. Test 640 x 480 pixel and 320 x 240 pixel 30 fps .

Without Booster and with standard Antenna on both Tx & Rx.

Receiver inside living room - going 100M away outside. Able to get 400 Kbps on 100 M range.

 

2. Test 640 x 480 pixel and 320 x 240 pixel 30 fps

With Booster and standard antenna on both Tx & Rx

Receiver inside living room - going 100M away outside. Able to get 4000 Kbps on 100 M range.

 

 

 

No HD quality I know I don't need it. The test was made with 20 other Wireless nets very near and with poor antenna both Tx and Rx.

 

Rx should have Patch and/or Yagi antenna.

 

Results: Booster works great to give better Broadband.

 

I'm waiting for this Wireless IP video server to arrive (Ebay). With this I can use other video camera + OSD + more suitable for fuselage.

170$ IP video server.

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Next test will be made in open field with Yagi and Patch antenna.

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Comments

  • T3
    This is pretty interesting as I have a little experience with digital 2.4GHz video links but not much. I am a little surprised with the (I know not legal) part of your post since we're trying to do everything we can to operate UAV's legally but to each his own.
    Like others said, if you're not doing FPV, this should be really interesting to see what kind of results you get as the encrypted link would be very valuable.
  • Try hooking the wifi cam up to a 3G hotspot device, this is how I do it.
  • @DaveyWaveyBunsenBurner
    Thanks for the link.

    I am going to read it

    JC

  • @tshado

    I havent used one but looked into them a while ago:

    http://diydrones.com/forum/topics/video-encryption?commentId=705844...
  • @DaveyWaveyBunsenBurner
    Hi

    Did you use encrypted video senders ?

    can you give some details or url links ?

    best regards

    Jean-Claude

  • Hooks,

    If it doesn't work out, you can get encrypted video senders.
  • Moderator

    @ethan

    Ipad / Android thing.

  • @soti

    It depends on your application of the video feed. If you're doing FPV, then yes, latency is an issue. However if you're just using it for "sight seeing" and land surveying, I think those types of latency times are fine.

     

    @Hooks

    What do you plan on doing with this video feed?

  • Moderator
    As I see it, this is not for FPV so should be no problem having 0.5 - 2 sec of lag.
  • There is always "lag" in this kind of systems because of the video encoding/decoding going on.

    Depending on the equipment, based on my experience it is at least 500ms, up to 2 seconds.

    You should test for that before going deeper, but for me, even less than half a second latency would be a no go..

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