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IWR1642BOOST: wonder if the Radar can detect a tennis ball

Part Number: IWR1642BOOST
Other Parts Discussed in Thread: IWR1443, IWR1642

Hi experts,

Ive been working on the radar to detect various balls such as baseball and tennis ball using mmWave Demo Visualizer ver 2.1, 

and so far , it seems the radar cant detect balls.

so my question is 

1) Can it detect balls which are inside empty ? if its possible , would you tell me the configuration that i need to change to detect the ball

 

2) My project is actually to see chicks in a farm using the radar, so before going to field , Do you think the radar is capable of detecting a little chick ?

Regards

  • Former Member
    0 Former Member

    1) are the balls moving? Can you provide the configuration you have tried so far?

    2) do you need to count the chicks or just detect whether there are some chicks in the field but not accurately count?

  • Hi

    1) the balls arent moving. i wanna detect static objects, the configurations ive tried so far are default one and the others that you can find in mmwave sdk 2.1 folder

    2) yeah, exactly. it will be great if the board can count the chicks but i know its kinda impossible , so it doesnt have to be very accuracy, i just wanna see where they are gathered

    thank you

  • Former Member
    0 Former Member in reply to jungsang yoo

    1) If you migrate to the latest silicon either 1843 or 6843 you can use the Area Scanner  demo which has a a static object detection algorithm to enable detection of difficult static objects.

    2) This should be possible. I recommend a high velocity resolution chirp so that you can detect the small motion of the chicks.

    Amanda

  • Thank you for your response!

    1) when i see the experiment documents that TI has done, small objects were detected with IWR1443. (here is the document i refer to : https://www.ti.com/lit/an/swra593/swra593.pdf?ts=1595557928482&ref_url=https%253A%252F%252F)

    as far as i know, the board, IWR1642 is more accuracy and stronger than IWR1442. however i failed to detect small objects like i mentioned above, tennis ball and baseball with using IWR1642. im not thinking of getting a new board to detect static objects when it is technically possible to detect. So wonder what configuration and gui should i use ?

    the configuration and GUI that i used are default ones of SDK 2.1 demo.

  • Former Member
    0 Former Member in reply to jungsang yoo

    The 1642 is not necessarily "stronger or more accurate" than the 1443. There is more memory and DSP instead of HWA for processing. However in essentials the RF performance w

    When you say the object was not able to be detected please provide the configuration you used to test for comment and review. If possible the data captures would also be good for debugging. In the application note you can see that the presence of the object is identified by looking for presence of a peak in the range profile. What data were you looking at to conclude that the object wasnt detected. How far was the object from the sensor and where was the sensor and objects placed?

    Please provide more details 

  • Hi

    here is the configuration i used.

    % ***************************************************************
    % Created for SDK ver:02.01
    % Created using Visualizer ver:2.1.0.3
    % Frequency:77
    % Platform:xWR16xx
    % Scene Classifier:best_range_res
    % Azimuth Resolution(deg):15
    % Range Resolution(m):0.044
    % Maximum unambiguous Range(m):9.02
    % Maximum Radial Velocity(m/s):1
    % Radial velocity resolution(m/s):0.13
    % Frame Duration(msec):100
    % Range Detection Threshold (dB):15
    % Doppler Detection Threshold (dB):15
    % Range Peak Grouping:enabled
    % Doppler Peak Grouping:enabled
    % Static clutter removal:disabled
    % ***************************************************************
    sensorStop
    flushCfg
    dfeDataOutputMode 1
    channelCfg 15 3 0
    adcCfg 2 1
    adcbufCfg -1 0 0 1 0
    profileCfg 0 77 429 7 57.14 0 0 70 1 256 5209 0 0 30
    chirpCfg 0 0 0 0 0 0 0 1
    chirpCfg 1 1 0 0 0 0 0 2
    frameCfg 0 1 16 0 100 1 0
    lowPower 0 1
    guiMonitor -1 1 1 0 0 0 1
    cfarCfg -1 0 0 8 4 4 0 5120
    cfarCfg -1 1 0 4 2 3 0 5120
    peakGrouping -1 1 1 1 1 255
    multiObjBeamForming -1 1 0.5
    clutterRemoval -1 0
    calibDcRangeSig -1 0 -5 8 256
    extendedMaxVelocity -1 0
    bpmCfg -1 0 0 1
    lvdsStreamCfg -1 0 0 0
    nearFieldCfg -1 0 0 0
    compRangeBiasAndRxChanPhase 0.0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0
    measureRangeBiasAndRxChanPhase 0 1.5 0.2
    CQRxSatMonitor 0 3 5 123 0
    CQSigImgMonitor 0 127 4
    analogMonitor 1 1
    sensorStart

    the object i wanted to detect was right in front of the radar , maybe less than 30cm.

    tennis ball nor baseball neither the board couldnt detect.(plus, i wrapped a tennis ball with cooking foil since mmwave SDK user guide says the radar wouldnt detect objects which are not reflective enough.)

    thank you

  • Former Member
    0 Former Member in reply to jungsang yoo

    Hello,

    I would advise you consider using:

    1) the latest SDK version of the OOB demo

    2) In the later version there is the ability to tune the CFAR threshold in real time. You can try reducing the threshold until you see the objects of interest.

    Thanks,

    Amanda

  • Thank you very much !