MOP transfer

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LeoMrn

Hello ! 

I have a question, we tried with success a MOP transfer OSDK to MSDK. We are using a RTK Smart Controller (M300 RTK), we still have two questions :

1 - Why can't we connect to MOP if STABLE parameter is disabled ?

2 - The smart controller seems not to support the transfer and is very laggy. Sometimes there even are crash. How to solve this problem ? 

 

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  • DJI Developer Support
    1 - Why can't we connect to MOP if STABLE parameter is disabled ? -->What is the error message? Are you sure that your PSDK device is supporting unreliable transmission? 2 - The smart controller seems not to support the transfer and is very laggy. Sometimes there even are crash. How to solve this problem ? -->Could you give us the crash log? What is the exact manifestation of the delay?
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  • LeoMrn
    Here is below our MOP test to help you understand our situation.
    1. The error message is just a message saying that we can't connect to MOP. I don't know? We are using a M300 RTK with firmware version 6.01.0100 (same for RC) and using MSDK5.3.0 and PSDK 3.4.0. As you can see, it works with unreliabble transmission and seems not working woth stable transmission. Does it mean that the transmission type depends of the PSDK device?
    2. I don't think it's a crash, its might be more a timeout of the app. We think it's about the computer power of the RTK Smart Controller. You can refer to the video attached for more understanding. 
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  • DJI Developer Support
    You can upload the video to this address:https://pan-sec.djicorp.com/s/osG9zgfict5bzW5 MOP is related to the configuration of PSDK. If it is a problem on the PSDK side, we can learn the details through the PSDK logs.
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  • LeoMrn
    • Edited

    I uploaded another video. Since the last message, we have managed to transfer one character which doesn't make the radio control lager. Could the amount of data flow in the transfer be the cause of the bug? 
    And it's only working with parameter UNRELIABLE and not STABLE, do you have any idea why?

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  • DJI Developer Support
    The pipelineIDs of stable and unstable channels are different, 492153 corresponds to the stable channel and 492152 corresponds to the unstable channel.
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  • LeoMrn

    Thanks for this precision, we tried the stable channel but as you can see with the second video I uploaded, the connection is working well but the transmission seems not. 

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  • DJI Developer Support
    This should be the design of the PSDK sample. The reliable channel transfers files, and you can open the MOP Upload/Down Page in the MOP page to examine the data transferred by the reliable channel.
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  • LeoMrn
    • Edited

    Whats is the real goal of the reliable channel? is that to transfer files only? where is store the file?

     

     

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  • DJI Developer Support
    Did you modify the PSDK code on top of the sample? Because I checked the code logic of J counterpart and it is not designed to transfer MOP. If you are using the MOP function provided by sample directly, the attachment is the address to send the file.
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  • LeoMrn

    Yes we did.

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  • DJI Developer Support
    Here is the path of the MOP transfer file.：%smop_channel_test_file/mop_send_test_file.mp4
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