Background 3DR Quad/X8 frame, props, motors, ESCs, power distribution board, Pixhawk and sensors. Laptop with Windows, Mission Planner (plus a gamepad) and WinScp&Putty (for SSH connection). Goal Fly my aircraft only by 4G/LTE cellular network, have live video feed and telemetry and have an on-board extra coputational power. Extra on-board Hardware ODroid XU3 - powerd by Samsung Exynos5422 (the same of Galaxy S5) - octa core 4xA15 CPUs + 4xA7 CPUs. Huawei E3272s - 4G LTE cat. 4 - 153 150 Mbps in DL e 50 Mbps in UL (!). RS232 TTL Ethernet converter Assembly I connect the TTL to Ethernet serial to PixHawk telemetry port (it can send telemetry and receive gamepad input), then i plug the RJ45 in the oDroid. I connect the Huawei E3272s to the USB 3.0 of oDroid. Software gStreamer (on oDroid) UDPredirect (on oDroid) Problem I'm getting crazy with my ISP (s) - i'm always behind a NAT and i cannot open/forward ports. I'm just trying with M2M SIM card (Vodafone, TIM), no solution so far. Thanks for any help. Special thanks to Bernt Christian Egeland for this.

The issue not being able to establish a connection from mobile to mobile is simply the carrier grade NAT (gcNAT) most carriers apply to consumer and flat rate tariffs. cgNAT is the same like the NAT at your SOHO router, but your are not the admin and can nit forward/open ports. to circumstance the issue, you have three options: Get an expensive commercial machine-to-machine contract Use a public server like AWS as man in the middle, which adds latency, similar to dronedeploy Implement double NAT punch through, like Skype or VoIP does. You will need a public server as registry for establishing the connection. Connection will be mobile-2-mobile like with Skype or any VoIP I haven't found a free program/library yet... 🙁 BR bjoern

4Gmetry

super

Background

3DR Quad/X8 frame, props, motors, ESCs, power distribution board, Pixhawk and sensors.
Laptop with Windows, Mission Planner (plus a gamepad) and WinScp&Putty (for SSH connection).

Goal

Fly my aircraft only by 4G/LTE cellular network, have live video feed and telemetry and have an on-board extra coputational power.

Extra on-board Hardware

ODroid XU3 - powerd by Samsung Exynos5422 (the same of Galaxy S5) - octa core 4xA15 CPUs + 4xA7 CPUs.
Huawei E3272s - 4G LTE cat. 4 - 153 150 Mbps in DL e 50 Mbps in UL (!).
RS232 TTL Ethernet converter

Assembly

I connect the TTL to Ethernet serial to PixHawk telemetry port (it can send telemetry and receive gamepad input), then i plug the RJ45 in the oDroid.
I connect the Huawei E3272s to the USB 3.0 of oDroid.

image 188224577654f9e516e6070039950616.jpeg

Software

gStreamer (on oDroid)
UDPredirect (on oDroid)

Problem
I'm getting crazy with my ISP (s) - i'm always behind a NAT and i cannot open/forward ports. I'm just trying with M2M SIM card (Vodafone, TIM), no solution so far. Thanks for any help. Special thanks to Bernt Christian Egeland for this.

super

I also have a good piece of news. I installed Lubuntu on oDroid XU3, and the Huawei E3272s immediatly works smoothly (no need of Sakis3G, just plug&play). This is the result:

image 103821014654f9f000c7049091149416.png

Now (@office) the 4G signal strength is 1 out 4. In other places i get 4/4 with x10 speeds (90Mbit/s download, 35Mbit upload) which is Super! On the other hand I cannot establish a link between GCS (Mission Planner) and oDroidXU3 (via Huawei) because of network NAT.

Sinamics

Hi Super.

Really cool project you got here.
I got Odroid-C1 myself, but never tried XU3

I also have a good piece of news. I installed Lubuntu on oDroid XU3, and the Huawei E3272s immediatly works smoothly (no need of Sakis3G, just plug&play). This is the result:

You are saying that with lubuntu the 3g adapter connects automatically? That is awsome..

I'm getting crazy with my ISP (s) - i'm always behind a NAT and i cannot open/forward ports. I'm just trying with M2M SIM card (Vodafone, TIM), no solution so far.

If i undersand correct, you are trying to stream from Odroid to your computer via internet, and you cant open ports in your router for incomming stream becouse of your IPS are putting your IP behind NAT?
Could you please elaborate if im wrong.

You could connect your laptop to another 4G adapter, and then receive the stream.

super

Hi Sinamics

Thanks for your appreciation.

You are saying that with lubuntu the 3g adapter connects automatically? That is awsome..

EXACTLY. oDroid XU3 + http://www.odroid.in/ubuntu_14.04lts/ Just plug&play. Fully tested in Italy (we have 4GPlus / Cat. 4 150Mbit/s DL 50Mbit/s UL).

If i undersand correct, you are trying to stream from Odroid to your computer via internet, and you cant open ports in your router for incomming stream becouse of your IPS are putting your IP behind NAT? Could you please elaborate if im wrong.

COMPLETELY RIGHT.

You could connect your laptop to another 4G adapter, and then receive the stream.

Yes, already done. However I cannot MAVlink my Laptop (+4G Dongle) with oDroid (+4G Dongle),because of above. I cannot even install Apache and use it as a server on 80. It seems like a paradox: I've everithing but I cannot establish mavlink because i don't have public IPs. I've just asked for special MAchine2Machine SIMs. Any other ideas?

Thanks,
S.

Sinamics

My cell operator ( Telenor ) also have some restriction based on which APN im using.
So for example, if im using "internet" as my APN, i will have the same problem as you. Cant open ports or access any application from outside.

If im using "internet.public" as APN, then i got full access and can do whatever i want.
Could it be that your problem is simply becouse of using wrong APN?

super

I've searched for different APN for my ISP, I tryied, but nothig changes. I'm behind NAT. So the IDEA could be to use a Rendevouz server. http://www.brynosaurus.com/pub/net/p2pnat/â€‹

The oDroid sends out UDP packages via UDP_REDIRECT (DONE) or TCP packages via TCPTUNNEL (DONE) . In both cases the packages are sent to my EC2 server on AWS (which has a static & public IP). The missing link is what to do next?

Virtually I would like to stay in my office at my desktop computer. I open Mission Planner, arm my drone (which is parked on the field 35Km from my office) and pilot the drone around the nearby fields.

Sinamics

The oDroid sends out UDP packages via UDP_REDIRECT (DONE) or TCP packages via TCPTUNNEL (DONE). In both cases the packages are sent to my EC2 server on AWS (which has a static & public IP). The missing link is what to do next?

I think i understand what you are trying to achive.
You want to stream to your virtual EC2 server and access that server with mission planner or redirect the EC2 server stream to you local computer?

Maybe if you esablish a VPN network or something like that to your EC2 server, and then connect the MP to your aircraft.
Im not familiar with EC2, so i dont know its`s capabilities.

Virtually I would like to stay in my office at my desktop computer. I open Mission Planner, arm my drone (which is parked on the field 35Km from my office) and pilot the drone around the nearby fields.

That should be no problem at all.
Im looking forward to the test result.. 🙂 Really cool project..

super

Probably the best solution is to use VPN to securely manage the vehicle fleet with secure dedicated tunnelling across NAT/firewalls/Routers. http://diydrones.com/group/telemetry-over-cellular-ip/forum/topics/4gmetry-telemetry-over-4g
I also suggested to move here any discussion about cellular telemetry. Currently I'm working with https://cloud.google.com/compute/docs/vpn; no results yet...
S.

Sinamics

This is really interesting, and i will follow this thread closely.
I hope you will find a good solution to your problem.
Keep us updated..

bjoern

The issue not being able to establish a connection from mobile to mobile is simply the carrier grade NAT (gcNAT) most carriers apply to consumer and flat rate tariffs.

cgNAT is the same like the NAT at your SOHO router, but your are not the admin and can nit forward/open ports.
to circumstance the issue, you have three options:

Get an expensive commercial machine-to-machine contract
Use a public server like AWS as man in the middle, which adds latency, similar to dronedeploy
Implement double NAT punch through, like Skype or VoIP does. You will need a public server as registry for establishing the connection. Connection will be mobile-2-mobile like with Skype or any VoIP
I haven't found a free program/library yet... 🙁

bjoern

Sinamics

Hi Bjorn and welcome.

Thx for the information.
Im currently looking into using server such as AWS. The big question is the latency this will create.
There is alot of extra stuff we can create if we use a server between our GCS and aircraft, so i really hoping for good test results.

If not, M2M will be a good alternative.
Please share if you have any further information or experience with servers like AWS.

super

4Gmetry doesn't require M2M now. This applies to 4Gmetry UNO, 4Gmetry S-Video and 4Gmetry PRO, which fully implements VPN for fleet management in Coriandola. 😉 http://www.4gmetry.com/coriandola/

Lin_Zhao

Hi, Super. Can I ask you a question? Do you know how to SSH the odroid from my laptop with 4G outside? Or any way I can control odroid's desktop from my laptop outside. I know how to ssh through wifi, but i want to launch ROS to do some experiment outside, thanks so much.

super

Sure: 2 options.

Use the built in VPN, signing as beta tester of the service. VPN gives you the virtual IP of your 4Gmetry
Buy a M2M SIM, so your carrier gives you a static IP

Write my gmail.com account silviorevelli@
Sincerely,
S.

Lin_Zhao

Is that ok to explain a little bit more about your ideas when you free. I am not understand. Thanks so much.

Sinamics

Hi Super.. What`s going on with the 4Gmetry? Did you sell your company to Volta Robotics?

drumadrian

Hi Sinamics, I would be really interested in what the answer was to your question. I am about to purchase a 4Gmetry III and I don't know the history of the device. I am hoping to be able to fly using 4G cellular coverage and also stream live video.

Thanks,

Adrian