IWR6843AOPEVM: Regarding Multiple Fall detection

We have used the TI Radar module IWR6843AOPEVM 

Hello Nathan,

We haven't changed the CFAR detection threshold and allocationParam

We have tune the Configuration as per PDFs but still it's not working properly we want robust solution. 

Regards,

Abhishek

Hi Abhishek,

If you can give me specific problems with your configuration we can work on brainstorming solutions. I need more specific information about what is failing and why.

Best,

Nate

Dear Nathan 

Could we schedule a call to address this issue, as we plan to use this radar in our project.

Thanks & Regards

Hi Abhishek,

Can you clearly describe your problem here first? If we get on a call I will just be suggesting the solutions that are documented at the links I have shared. Please give us more detail as to when and how your fall detection system is failing.

Best,

Nate

Dear Nathan,

We are working on achieving fall detection using the TI IWR6843AOP EVM, but we are facing challenges with low accuracy in the fall detection data, and it also detects false fall detections.

• Our main use case is multiple fall detection. We have flashed the binary '3D_people_track_6843_demo' and selected the configuration file 'AOP_6m_default'.

Video link https://drive.google.com/file/d/13vE0FCQCSoI8dnyixdAllsSB-RU-yc6y/view?usp=drive_link

Configuration file link - https://drive.google.com/file/d/18ze-O6oWqBZlkwd-dhLyTFdGZNeebcmw/view?usp=drive_link

• Then, we flashed the binary '3D_people_track_6843_demo' and selected the configuration file 'AOP_6m_default_modify_as_per_TI_pdf's.cfg.' The modification has been made in accordance with the TI PDF's instructions.

After this modification, we are not receiving any fall detection data.

Video link https://drive.google.com/file/d/1GHHnTtSdaju1tGS7QTWJ-Uj4DTL9aQAZ/view?usp=drive_link

Modified Configuration file link - 

https://drive.google.com/file/d/1CRTq4auIDYtYjzMrOspHVqoeQfbXFcjK/view?usp=drive_link

Thanks and regards

Hi Abhishek,

Thank you for this information. I would note a couple things:

1. Your EVM is placed sideways. It should be positioned as below, with the long side parallel to the ground. 

You have it rotated 90 degrees sideways.

2. Your sensorPosition argument is incorrect. You are telling the device that it is positioned 2 meters in the air with the tilt down of 15 degrees, when in reality it appears the sensor is shorter and has no tilt. EIther way is fine (2m and 15 degrees or 1.5m and 0 degrees), your configuration file just needs to agree with your real-life setup.

3. When measuring, I would recommend against sitting at the table directly underneath the sensor. A more open environment is recommended for best performance. I would also recommend starting with just a single person in the field of view to validate performance, then moving to multiple people. It looks like when the first person falls, the second person stands between them and the radar.

Can you try again with these changes.

Best,

Nate

Dear Nathan 

Thank you for your assistance. I will test it and provide you with an update on whether it is functioning correctly.

Best,

Abhishek Sonar

Sounds good.

Best,

Nate

Dear nathan

We have tested and achieved better results, but it detects falls not only when someone actually falls but also when someone sits down on chair or ground.

Video Link:- 

https://drive.google.com/file/d/1PvODt6e_K7jCABRtWKFm2AFV7vGbb-fB/view?usp=drive_link

Images Links :- 

https://drive.google.com/file/d/14VTr9CkN0BOJUW0gx2jtHSYJtht8Frrz/view?usp=drive_link

https://drive.google.com/file/d/14WMLtM56F2pKvNiDk7gbRxB-2ihkKFR_/view?usp=drive_link

https://drive.google.com/file/d/14_yg4a6EdYJE1eHr-9S1ShpgadmXtPoq/view?usp=drive_link

Best,

Abhishek

Hello Nathan,

We have tested the sensitivity slider in the GUI, and it did not effectively filter out false detections.

Best,

Abhishek

Hello Nathan,

We are currently encountering an issue while attempting to capture UART logs. I have attached a screenshot of the error message that has appeared. Additionally, could you please provide guidance on how to retrieve logs from the IWR6843AOPEVM?

Error 1
Error2

Hello Nathan,

The device is working properly, and the GUI is functioning as expected. However, we need to retrieve the UART logs simultaneously when the GUI is on. But when we open the Putty tool to collect the logs, it shows an error message stating that it's unable to open Putty because the COM port is busy.

Could you please provide information about how to collect the log data?