UgCS client connect to multiple drone, data mismatch

Posted by Priya Sharmila on August 14, 2017 at 8:13pm

I was working with UgCS for single pixhawk. It was working fine and then I tried to use UgCS .Net SDK to receive the telemetry data and succeeded.

Later I wanted to go for multiple pixhawk. 

At first, I connected my pixhawk and my laptop with the 433Mhz radio. 

Now, I tried to connect with multiple pixhawk with single radio connected to my laptop.

I could see the new pixhawk turned ON and not the old one. But the telemetry data I receive belongs to the first pixhawk. This happens in UgCS client application as well.

I want clarify some of the below things.

1. Can I connect multiple pixhawk/drone with single radio?

2. Does the radio need to be paired to connect to the drone?

3. I could see the vehicle ID for 2nd pixhawk and the telemetry data belongs to 1st pixhawk. Why?

4. Do I need to have multiple radio to connect to multiple pixhawk (by pairing each radio)?

Any help on this will be much helpful for me.

Thanks in advance! 

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Replies

  • Alexey Dobrovolskiy August 19, 2017 at 2:42am

    Hi!

    1. Can I connect multiple pixhawk/drone with single radio?

    Only if radio supports multipoint connections. 3DR radio modem supports only point-to-point connection.

    2. Does the radio need to be paired to connect to the drone?

    Each pair should have unique NetID parameter. Please see here how to set it here

    http://ardupilot.org/copter/docs/common-sik-telemetry-radio.html#co...

    3. I could see the vehicle ID for 2nd pixhawk and the telemetry data belongs to 1st pixhawk. Why?

    It seems that both vehicles has same SYSTEM ID. Please check carefully that you set unique SYSID_THISMAV parameter for each vehicle AND each pair of radio has own unique NetID.

    4. Do I need to have multiple radio to connect to multiple pixhawk (by pairing each radio)?

    In case of 3DR radio - yes. 

    SiK Telemetry Radio — Copter documentation
  • UAV Skies August 18, 2017 at 7:57pm

    Have you ever reached out to UgCS for support?

  • Priya Sharmila August 15, 2017 at 6:41pm

    Thanks for the reply Sergey.

    May be you are right. But to say, I use a single 3DR connected to my laptop. And have 2 pixhawk with their own 3DR. When I start UgCS client, I could see both the pixhawk connected. But I also could see only one pixhawk data. Unfortunately the data I see doesn't belong to that rather other pixhawk data. What could be the issue here? 

    Is the 3DR receives all the signals around or UgCS couldn't differentiate the data from the signals with the system ID?

    Sergey Kucenko said:

    Hello,

    If I correctly remember 3DR radios than they should be paired together. So its mean that each aircraft should have its own pair.

    Much easier for several aircraft use WiFi modules with one ground Access Point.

    Kind regards,

    Sergey Kucenko.

    UgCS team

  • Sergey Kucenko August 15, 2017 at 3:13am

    Hello,

    If I correctly remember 3DR radios than they should be paired together. So its mean that each aircraft should have its own pair.

    Much easier for several aircraft use WiFi modules with one ground Access Point.

    Kind regards,

    Sergey Kucenko.

    UgCS team

This reply was deleted.