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IWR1642BOOST: People Counting Demo ES1.0

Daniel Carvalho62
Prodigy 20 points
Part Number: IWR1642BOOST
Other Parts Discussed in Thread: IWR1642

Greetings everyone.

I acquired the IWR1642 to use it in a people counting solution. I tested the demo using Industrial box 2.3.0, said as the latest version with support for ES1.0.

I tried to change the parameters indicated in the document provided by Texas to customize the people counter demo, which shows that to minimize the detection of "ghosts", parameters like "allocation" and "state transition" should be changed.

I followed this guide, and tried other configs provided in other questions at this forum, but without success, because some ghosts are still being detected.

The IWR1642 is being positioned on a platform fixed to the wall, at a height of approximately 2 meters.

Thanks in advance!

The config is:

dfeDataOutputMode 1
channelCfg 15 3 0
adcCfg 2 1
adcbufCfg 0 1 1 1
profileCfg 0 77 30 7 62 0 0 60 1 128 2500 0 0 30
chirpCfg 0 0 0 0 0 0 0 1
chirpCfg 1 1 0 0 0 0 0 2
frameCfg 0 1 128 0 50 1 0
lowPower 0 1
guiMonitor 1 1 0 0
cfarCfg 6 4 4 0 0 16 16 4 4 80 92 0
doaCfg 600 1875 30 1
SceneryParam -6 6 0.05 4
GatingParam 4 3 2 0
StateParam 10 5 10 100 5
AllocationParam 450 0.01 25 1 2
VariationParam 0.289 0.289 1.0
trackingCfg 1 2 250 20 200 50 90
sensorStart
 
 
* If it helps, the tests are being conducted in a room, where one of the walls contains square glass plates with an area of ​​1 square meter.
  • 0
    TI__Mastermind 28055 points

    Hi Daniel,

    A few things to try:

    1. Use the scenery parameters to limit the areas where detections can happen.  This will remove ghosts (and all detections) in other areas.
    2. Increase the minimum velocity in the AllocationParam - this is useful if a static object is causing the ghost.  It is less useful if the ghost is created when walking past some object.
    3. Increase the SNR threshold and Points threshold until no detections take place.  Then lower these thresholds until a person is detected - then, ghosts should not be detected.

    The terms I have used above are described in the customization guide.

    Regards,

    Justin

  • 0 in reply to Justin Curewitz
    Prodigy 20 points

    Thanks for the help, Justin.

    I'll try this and return later to tell the results.