RC India

Resorces
https://play.google.com/store/apps/details?id=com.macaca.wififpv&hl=en

(https://lh6.ggpht.com/N0yy_ONIiRmYVozmanW8qujjwDXn2P6aAP5KCDweL0cDKaV2OKqaHYD-WzkKQj6mMo8=w300-rw)(https://lh6.ggpht.com/JhGtgS9R7YurVg6Scv_3HJBeTpwH9qsjtsXmZfw10HY2U3V4-QB9a6RXuixe1LXBg3c=h900-rw)(https://lh3.ggpht.com/JV16Mcx85-GnEUr3zspWmvpGFdyzW-1YEU29oEFE_kNquDS4dymmrUPNhCd96bxvTw=h900-rw)(https://lh5.ggpht.com/iPW43OzN60rYsdwYkGByuw0Odgkp64tJVgVB6FyiS5hUd1M8WX1vC8qFBdNNFD7g2_o=h900-rw)

Use your android phone with magnetometer, accelerometer, GPS and Camera for FPV with OSD over wifi over WAN.

You can see the video stream of your phone camera overlayed with OSD details over wifi on an another Android Device using FPV viewer app which can again be downloaded from Google store or VLC player on a PC connected to same WAN by inputting the IP address of the video stream.

FPV Viewer on Android
https://play.google.com/store/apps/details?id=com.macaca.fpviewer&hl=en

(https://lh6.ggpht.com/XcuFJgr5oSOC0Isunp6bazoxIhu136FrIy5DqmoeEyHPfrNcovJbE2wH9D4QnAsCyIYt=w300-rw)(https://lh6.ggpht.com/pjBvq3nr_ndACUG0exHHPg2Enj1Myk2eWmOeC8kFBi9JFQcaYiRnQheByRuBs_4nof1j=h900-rw)
(https://lh4.ggpht.com/jGfhyMUs0qTrA7jCE_bYNYZu-VaC_2yeBEZ5bOo3Q5Pg8vgcHG9qT9VXFphDWFW0UbE=h900-rw)

Wow nice one.. What about the range sir..?
you tested it?

Range of the WAN network. You can increase range with directional wifi antenna and wifi amplifiers on the router

Yes tested between my Note2 and Dell streak.

Hows the video lag chief?

Wifi has the highest bandwidth should not have any lag.

Are you joking?
Streaming Through WiFi should have at least 1 Sec delay even for low quality videos.
Bandwidth not equals to response timing.

I think one of latest video by flitest on tips for aerial photography actually proves your contention of 1 sec delay.

Mentioned this video?
http://youtube.com/watch?v=1_SQ2zqsqVE
Yea they shown the delay @4:16 on this video but this still using short range WiFi below 400m, above that we need WiFi extender/packet forwarder which increase too much delay.
Redirect me if I'm wrong.

Theoretically what you are saying is partially true if its analogue signals.

See this video.
www.youtube.com/watch?feature=player_embedded&v=aT2Gzpv0T-U (http://)

Guys are already thinking for digital transmission with very low latency over 3G/4G.

http://www.rcindia.org/rc-general-topics/sky-drone-fpv-long-range-digital-hd-video-fpv-solution-a-new-era-of-fpv-flying/#quickreply (http://www.rcindia.org/rc-general-topics/sky-drone-fpv-long-range-digital-hd-video-fpv-solution-a-new-era-of-fpv-flying/#quickreply)

sir, one thing you said is totally wrong, analog is faster than digital in case of video transmission.

because analog can simply sent and receive what camera get to monitor in near real time that only depends delay signals in air,
but digital transmissions are packet transmissions will take time also need encoding in camera side and decoding in monitor side depends more factors like processing power.

digital video transmission can beat analog in future but not now.

Whoever gave you that idea??  Why in future buddy its already beating today.

You are right till packet transmission but missed out on Digital Compression buddy. Now you are transmitting within a micro second what you were doing it earlier in a sec not only single stream but multiple stream in the same second. Why there is no limit on processing power today? With more and more miniaturization and availability of same processing power if not more in smaller form factor by the day.

Its just not yet been made available to you but its being used widely even today.

i agree with miniaturization of components and compression techniques,

but one simple question,
In case audio transmission Can we replace normal analog Trunk Voice calls with P2P SIP calls for daily use?
(Don't Compare with mixed SIP to analog)

If you are trying to test my grip on communication tech its neither my field of work nor forte. You will be surprised that I know more than what is required for me being in a totally different field that what I am exposed to.  ;)

I am not getting your question fully here, but if I understand correctly. I would say "yes" and "No"

"Yes" Haven't you heard of ADSL two wire data transmission for broadband over two wire telephone cable superimposed over analogue voice or the the cable TV set top boxes through two wires.

"No" The last few miles Hardware infrastructure backbone required than what's existing are entirely different.

I hope you are not under the impression that the long distant analogue trunk call is analogue the entire route.  ???  

In any case I don't get your motive for that question. what are you trying to get at here.

Its better not to Jump to conclusions in the first place and make fleeting inaccurate statements like analogue is faster than digital or claim high latency issues with partial analogy of tech and technique for digital when the entire world is migrating to digital in place of analogue for the obvious advantages of redundancy, high bandwidth, low latency, error corrections, compression, cloud computing and many many more and now trying to beat around the bush.  :)

I am sure you will come to understand that the high latency which we talk about and come to experience in digital is due to the network congestion and not because of the technology or the techniques as such. It's always a fine bargain between acceptable limits and optimum cost factor.

Sir, Please Don't misunderstand me, i Know well that you are a legend in your fields and well experienced.
also i don't want prove you are wrong but need to know that any points missed by me or i'm going in wrong direction.


the point is i just tried to simplified the concept video over 3G/4G,
with audio over 3G/4G (that have low bits than video) is still not fast as analog mobile trunk calls.

didn't get the point.
anyway ADSL over 2 wire cable thing is wired and have high latency than wireless.


No, We have too much Hardware infrastructure backbone than we need for audio transmissions over Digital way.

No, We DIgitalized some parts to save costs,

Sorry Sir i'm  too bad communication than all these networks.


Just told my views not concluded, everyone have their own views. always waiting for someone have good points to braking my views,

Digital and analogue have their own pros and cons.

we are discussing about real-time applications Via Digital and Analogue right?
and the other problem is we are using too much mediators in 3G/4G networks than direct connection.

May be I was a bit harsh earlier but my judgement on that was surely not misplaced about my intent.

I am sure you are aware that  normal analogue  trunk voice calls is wired and over two wires.

My response to your question was exactly in lines with the related wired hardwares and technology.

Now don't go beating around the bush again I am sorry to say here with your limited exposure shunting back and forth between 3G, wifi and wired communication and comparission between them and hardware involved in them.

In any case it's been clearly mentioned by me that your question was confusing in the first place. In any case if you were not refering to a wired analogue trunk calls we are wasting our words over a non issue.

I hope you are aware that real time military UAVs are all on digital and not analogue.

I hope you read my last para in reply # 13.

Yes I agree with only last line content of your reply # 14

Again I'm really sorry sir,

To be clear, Actually that question is the comparison between normal mobile voice calls(still I know that this is not pure analogue) in 3G and SIP/Internet/VOIP/Packet Calls (Pure Digital) in 3G.

What about military UAV's
Are they preprogrammed mission based flights doesn't need realtime controls?

But ours? One second blank/freezes screen in fvp monitor causes unexpected results.

Still I'm not concluding, and thanks for your valuable time.

Hey please there is no need for apology here.

I am getting to understand that your response are all based on your firm personal belief that digital communication leads to high latency due to the involvement of processing of the data which is not entirely true by the way and on the contrary it allows you to compress more data into the same bandwidth and time frame which allows your multiple data over same channel with very low latency. In fact digitization goes a long way in eliminating all the blanks and freezes and giving continuous live feed.

Its all controlled live real time with very low latency and lag in control using single channel or multiple only for redundancy. However autopilots hardware on the bird has system in place for those occasional skips and misses which is flying the bird on the preset mission most of the time with very little user input with real time live feedback.  

User input is majorly present only during take offs and landing.

thank you sir for your valuable inputs.  :bow:

Hey just think how the AR drones work!! Ahh...

JK

Finally a good application to justify buying a smart phone  :rofl: :rofl:

Its a nice idea and now i can clearly see where i'm flying in the field, so i can compare my depth of perception with video  :).

Guys any ideas for cheap phone with above features  >:D.

Sahil

what will happen if the phone doesn't have GPS and Compass ?? will the app still function ?

Sir. ..tried it the viewer goes black ....did you encounter this issue....I am using two Samsung note 2 phones

Nope I got video using note 2, paired with laptop,  S Duos, Dell streak. Even S Duos with others too. Hope you are entering IP of stream correctly on the viewer.

I am entering it correctly. .It just blacks out...let me again install it

Here also working fine with my Nexus 5 and Acer W4 Tab, and better video response with IP webcam android app and VLC player (remember to cache Set Cache 0ms). But no osd in this.