IWR6843AOPEVM: Fall Detection Demo not detecting a Fall

Hi Saji,

Can you tell us the firmware name and version number running on the device and the visualizer? Additionally, is the error you're reporting coming from the radar device or the visualizer?

Best,

Nate

Nate - Thanks for your help. The Firmware I am using is "3D_people_count_68xx_demo.bin"....this is from the mmwave_industrail_toolbox_4_11_0.........in labs->People_Counting->3D_People_Counting->prebuilt_binaries folder

The  configuration file being used in the Visualizer GUI is "ODS_6m_smallRoom.cfg"

This error is comping from the radar device, from the windows terminal when I run the "Fall_Detection_GUI" in the visualize folder in the toolbox.

Appreciate your help and please let me know if you have any other questions.

Saji

Nate - Thanks for your email. As per your suggestion, this time I used the "AOP_6m_default.cfg" config file in the Fall Detection folder. (but no chaange from previous error)

Attached are the screen shots of the Visualizer and the error I was referring to. First I get the "divide by zero error" and the "index out of range"....These errors happen after a minute or so, but even before that no fall is detected.

Would it possible for you to please send me a link, or as an attachment - the exact binary and cfg files I need to use?

Also do I need to make any configuration changes in my Visualizer to get this to run?

If it's easier to have a call, you can call me at 310-923-4372.

Thanks and appreciate your help.

Saji

Hi Saji,

I can look into this in greater detail tomorrow. In the meantime though - I do notice that your screenshot includes the following, which indicates to me that you can only run fall detection when only 1 person is detected. Perhaps you can retry with just a single person detected?

Best,

Nate

Nathan - I am not sure why it shows two people, That happened many times, even though I was the only person in the room, it shows more than one person. Is it something to do with how I am positioning the device?

Thanks!

Saji

Nathan - While I tried to retest, I came across this error now, different from before and seen it before as well, but thought Ill share with you.

Thanks!

Saji

Hi Saji,

Your COM Port is incorrect. If you have the right port selected, you may have forgotten to reset your device or program. Please unplug the device, and restart the program. If that doesn't work, try restarting your computer. Let me know if this solves your problem.

Best,

Nate

Nate - Please see the defect image I had sent previously, that's the defect I get always. First I get the "divide by zero error" and the "index out of range"....These errors happen after a minute or so, but even before that no fall is detected.

I retested with the correct COM ports and it shows "Connected" as well, followed by the above error.

If possible could you please send me a link (or attachment) of the binary and cfg I need to use? I have provided above the ones I have used.

Also is there any settings I need to change on the GUI?

Thanks

Saji

Hi Nate - Thank you for the details, let me retry this with the files you have provided. Will keep you informed.

One related question - to use this AOP on my own and extract data elements, to read other points like vital signs - do you have any documentation that you can point me to? I am trying to use these data points in my own mobile app/GUI.

Thanks and appreciate your help.

Saji

Hey Nate - its so surprising, I am using the exact the same files you mentioned above,  and just tried this multiple times, still no luck. Is it something to do with how you place the device or the antennae....at what height are you placing the device? 

It turns red randomly, there is no consistency at all.Could you please send me a snapshot of your visualizer settings - maybe that is different.

What is your "Fall_threshold" setting...mine is -0.22

Really appreciate you trying to help me, Am really hoping to get this working soon.

Have a nice evening!

Saji

Hi Nate - Thanks for the info. No, I had not updated or changed the Sensor Position Information anywhere. Do I need to update  these values in the visualizer GUI?

If so could you please let me know the fields in the visualizer, that I need to update? I want to make sure that I don't make any mistake.

Thanks!

Saji

Thank Nate - I did not know I had to make these changes. Is there a document/link present that explains all these configurable values/parameters for the device?

Also there are three numbers for "sensorPosition" - Could you please tell me what they are?

Thanks!

Saji

Nate - Good Morning and hope you are having a great weekend.

Wanted to follow up on my question above...just to give you some context -  what we are trying to do is to build around 10 POC devices, that would detect fall and vital signs.

I also wanted to check with you if you guys offer a module with communication pins exposed, which we can connect to a microcontroller (like ESP32).

Thanks and your answer to this and my questions below will be of great help, for us to move forward.

Saji

Hey Nate - I think I figured out regarding the "Sensor Position" question.

Could you please help answer my above question - if you offer a module with communication pins exposed, which we can connect to a microcontroller (like ESP32).

Thanks!

Saji