IWR6843AOPEVM: mmwave sensor calibration : need , right procedure or video , how to confirm its successful .

Vaishali Deshatty

Part Number: IWR6843AOPEVM

Tool/software:

I explored few example demos for 3D people tracking and counting. After few suggestions from TI support team , I understand there is need of sensor calibration before using for 3D counting accurately.

For sensor calibration I used procedure mentioned at ti/mmwave_sdk_03_06_02_00-LTS/packages/ti/demo/xwr68xx/mmw/docs/doxygen/html/index.html#Calibration_section. Summary snapshot below.

Issues observed:

Device programmed with ‘out-of-box’ demo. Used calibration profile from \ti\mmwave_sdk_03_06_02_00-LTS\packages\ti\demo\xwr68xx\mmw\profiles\profile_calibration.cfg
1. Tried with visualizer tool placed at \ti\radar_toolbox_2_30_00_12\tools\visualizers\Applications_Visualizer\Industrial_Visualizer , could not calibrate.
2. Tried using https://dev.ti.com/gallery/view/mmwave/mmWave_Demo_Visualizer/ver/3.6.0/ .

Tried sending commands with advance command option
Could not upload calibration profile , webpage throws error .

Support required:

Provide proper guidelines document to calibrate sensor.
Provide video of sensor calibration
Short call / meeting to explain calibration.
We need to understand all issues observed during calibration , exact procedure. I plan to purchase few more sensors and do not want to face these types of issues.

6 months ago

0 Josh Dye 6 months ago

TI__Mastermind 21001 points

Hello,

Please refer to this thread on the same topic. I believe it may resolve your issue.

https://e2e.ti.com/support/sensors-group/sensors/f/sensors-forum/1196912/iwr6843aopevm-calibration-procedure---issues-with-measurerangebias-configuration

Regards,

Josh

0 Vaishali Deshatty 6 months ago in reply to Josh Dye

Prodigy 40 points

Hi Josh,

I have read through the thread on similar topic you had suggested.

I did comment not supported command and able to run calibration profile. However after that also 3d people tracking example demo did not work as expected.

Few questions:

What kind of reflector is good? I used corner wall , then I tried keeping one metal sheet of 10inch *10 inch .. which metal is suggested?

Basically how do I confirm/decide my calibration is complete? there should be easy method to fix this. Any pointers will be appreciated.

regards,

Vaishali

0 Josh Dye 6 months ago in reply to Vaishali Deshatty

TI__Mastermind 21001 points

Hi Vaishali,

Vaishali Deshatty said:
I did comment not supported command and able to run calibration profile. However after that also 3d people tracking example demo did not work as expected.

Can you be more specific about what issues you are facing here? Do you mean the demo does not output any data or the data is incorrect?

Vaishali Deshatty said:
What kind of reflector is good? I used corner wall , then I tried keeping one metal sheet of 10inch *10 inch .. which metal is suggested?

Basically how do I confirm/decide my calibration is complete? there should be easy method to fix this. Any pointers will be appreciated.

Please refer to this older thread: https://e2e.ti.com/support/sensors-group/sensors/f/sensors-forum/612795/iwr1443-the-material-of-the-reflector

Best regards,
Josh

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IWR6843AOPEVM: mmwave sensor calibration : need , right procedure or video , how to confirm its successful .