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IWR6843AOPEVM: Output data of vital signs with people tracking is not matching with the format specified in the user guide

Poorneka T
Prodigy 130 points
Part Number: IWR6843AOPEVM
Other Parts Discussed in Thread: IWR6843AOP

Hi Team,

The idea is to understand the vital signs with people tracking lab.
So we carried out a few experiments to understand it better using IWR6843AOP EVM.

We logged the data from the IWR6843AOP EVM DATA port using teraterm application.
However, while parsing(Manual verification) the collected data, the output data format is matching till the frame header, but for further data (TLV's header and length). We are getting large values(Not the proper TLV type).

But with the same radar firmware, while we are testing using the visualizer (GUI), we are getting both person tracking(Person TLV)and vital sign data(Vital sign TLV).

Could you please help us in figuring out and resolve the issue?

Thanks,

Poorneka

  • 0
    TI__Mastermind 37780 points

    Hi Poorneka,

    How are you attempting to parse the data? See the processing found in the python visualizer scripts as an example.

    Best,

    Nate

  • 0 in reply to Nathan Block
    Prodigy 130 points

    Hi Nate,

    We tried manual parsing of the data collected over tera-term for the first time. But the data is not matching with the data format mentioned in the user guide.

    For the second time, we dumped the data into a file and mapped it by altering the GUI code, but the same issue continues.

    On the other hand the GUI is responding in an appropriate way, which is in contradiction to the collected data.

    Please clarify me with this issue and how the visualizer works with this kind of data.

    I have attached screenshot of the data as the binary file is not getting uploaded due to network issue.

  • 0 in reply to Poorneka T
    TI__Mastermind 37780 points

    Hi Poorneka,

    It is a holiday in the US until January 3rd. Expect delayed responses until then. Thank you.

    In the meantime - it appears to me the frame header may not align with the documentation in the user guide. See the people counting frame header here and see if it aligns with what you expect.

    https://dev.ti.com/tirex/explore/node?a=1AslXXD__1.00.00.26&node=A__ANL8AwYMp.Qo2i.UiR1E3A__radar_toolbox__1AslXXD__1.00.00.26

    Best,

    Nate

  • 0 in reply to Nathan Block
    Prodigy 130 points

    Hi Nate,

    Thanks for the reply during your holidays.

    As suggested, we tried to parse the captured data with respect to the 3D People Counting LAB.

    The TLV type and the TLV length are matching with the People Counting TLV.

    But I'm not getting the Vitals Signs TLV in the dumped data.

    I'm not sure what I'm missing there. As mentioned before, we are visualizing the vitals sign waveform in the GUI.

    Please help us in resolving this issue.

    Thanks,

    Poorneka 

  • 0 in reply to Poorneka T
    TI__Genius 17265 points

    Hi Poorneka,

    Can you specify what version of the toolbox you are using for this? The output format was changed during one of the recent releases, so I just want to ensure that  the firmware you are using is the latest. This could be extra confusing if using outdated firmware and reading the latest docs.

    Best Regards,
    Alec