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CCS: A few questions about VitalSigns demo

Zhiqiang Liang
Prodigy 240 points

Tool/software: Code Composer Studio

Hi,


The board I am using is: DB77M24A6426V2

CCS version is: 9.1.0
Industrial Toolbox version is: 3.6.2
on Windows 10.


Question 1:

I burnt the pre-built binaries to the board and then run the Gui on Windows 10. I could  see the breath rate and heart rate on the GUI correctly.
but breath rate and heart rate will be wrong if I stand more than around 1m far way from the sensor(board). If I stand within 1m, the rate is correct again.
Is there any way to configure the measurement distance to make it measure more than 1m?

Question 2:
in folder C:\ti\mmwave_industrial_toolbox_3_6_2\labs\lab0026_vital_signs_68xx\gui\profiles, there are 2 configuration files, is there any document that explains all those parameters in those 2 configuration files?


Question 3:
I would like to re-built the source code in folder C:\ti\mmwave_industrial_toolbox_3_6_2\labs\lab0026_vital_signs_68xx\src.
I have CCS and Industrial Toolbox 3.6.2 installed on my computer. If I open CCS, how to create a project for my board?
is there any document that tells me about the method/steps from the beginning?


Thanks and Best Regards,

Ardeal

  • 0
    TI__Guru 50240 points

    Hi Ardeal

    The Vital Signs Lab is valid only for distances of about one meter or less.

    You discuss 2 configuration files from a previous toolbox, the chirp parameters are discussed in the mmWave SDK User Guide on page 19. Also the specific Vital Signs parameters can be found in the Vital Signs Lab User Guide.

    Procedure for building and running the lab can be found in the Vital Signs Developer's Guide.

    Please note that the Vital Signs Lab is provided as-is and support is limited on E2E Forums.

    Regards,

    AG

  • 0 in reply to Akash Gondalia
    Prodigy 240 points

    Hi AG,

    Thanks for your reply!

    as I know the sensitive distance of signal from mmwave sensor to motion is more then 3 meters, why does the VitalSigns lab only work about one meter?

    is there any restrict in sensor hardware or software? or is there any other reason why it only works around 1 meter?

    If I want to make it work around 3 meters, what should i do?  is there any better sensor or other solution to make it work about 3 meters?

    Thanks and Best Regards,

    Ardeal

  • 0 in reply to Zhiqiang Liang
    TI__Guru 50240 points

    Hi Ardeal

    This is just the limitation of the software not the hardware. For this lab it is recommended to use at distances of about 1 meter.

    Regards,

    AG

  • 0 in reply to Akash Gondalia
    Prodigy 240 points

    Hi AG,

    Many Thanks for your reply!

    what is the limitation of the software?

    I would like to fix the limitation of the software. Could you please tell more about the limitation?

    I wan to make the sensor measure VitalSigns more then 1 meters.

    Thanks and Best Regards,

    Ardeal,

  • 0 in reply to Zhiqiang Liang
    Prodigy 240 points

    Dear AG,

    I have roughly read the code and found that:

    The callback function VitalSignsDemo_CLIvitalSignsParamsCfg in cli.c in mss project  receive the VitalSigns configuration commands from GUI, and send commands to dss by mailbox protocol.

    The code from line 1260 to line 1268 in cli.c file is the VitalSigns configurations.

    The parameters:

        vitalSignsParamsCfg.startRange_m         = (float) atof (argv[1]);
    vitalSignsParamsCfg.endRange_m           = (float) atof (argv[2]);

    are the start range and end range configurations.

    I tried to modify the default value of end range 0.9 in profile file. The measure distance of VitalSigns really became further, however, the VitalSigns result became smaller. such as when I sit 0.9m far away from the sensor, the heart beat rate is around 84, however, it became 54 when I sit  around 1.5m from the sensor.

    (By the way, I am the only one in the room when I did the above experiment. In the room, only the cell phone and computer are running, and no other household appliances are running. Furthermore, cell phone and computer are in the direction of sensor antennas)

    my question is:

    Is this the only parameter to configure then end range? If I change it, should I change some other related parameters?

    Thanks and Best Regards,

    Ardeal