AWR1843BOOST: Unable to load config file

Hi,

Please let us know what application you intend to use the AWR1843 for. This will help us recommend the right demo.

Please note that the mrr demo binary only works with the MRRVisualizer, it does not work with the mmWave Demo visualizer

thank you

Cesar

Hi Cesar,

We want to use this radar in some advanced applications like obstacle detection, it should be able to detect obstacles which are crossing radar in parallel path instead of perpendicular path. We are exploring this radar module and doing some table top activities to check the feasibility.

We had developed our own serial communication utility to grab the packets received from AWR1843 used  inplace of mmWave Demo visualizer and was working pretty fine. Now with the update of AWR1843 with the demo binary image our utility as well as mmWave Demo visualizer aren't functioning. I guess there is a difference in serial protocol in the demo binary image that is used. Could you share us the protocol details so we can update our utility.

Since the radar has obstacle detection capabilities up to 150m and using the demo binary image we are able to get a range upto 50m. Could you help us to enable the detection range up to 150m.

Thanks,

Manoj

Hi Cesar,

Thank you for information. One point that we mentioned earlier is our observation during our testing with MRR demo binary flashed in the radar is that we are able to detect obstacles that are moving perpendicular to the radar(coming closer and going away from the radar), but we are not able to detect obstacles moving horizontally across the radar(moving from left to right and vice versa). 

Could you help us to enable detection for horizontally moving objects.

Thank you,

Manoj

Hi,

Detecting objects moving horizontally across the radar will be more challenging because the radar is only able to detect the radial velocity.

When an object moves "horizontally", the radial velocity does not change as fast as when the object moves "vertically" This means that when the object moves, it will spend longer time in the same doppler bin. This will make it more difficult to detect. Increasing the Velocity Resolution should improve the detection.

The Velocity Resolution will improve by increasing the Active Frame Time. This can be increased by increasing the chirp Idle time

https://e2e.ti.com/support/sensors-group/sensors/f/sensors-forum/1050220/faq-computing-maximum-range-velocity-and-resolution-mmwave-system

Of course, the consequence of this will be that the Number of frames per second will decrease because we need to increase the frame period.

thank you

Cesar

Hi Cesar,

I have modified the code for long range detection. I have changed it to MRR subframe only configuration. As per developer's guide I am able to rebuild mrr_18xx_dss project successfully but not the mrr_18xx_mss. It takes lot of time and never finishes rebuild process, it stuck at 40%. I tried cleaning up the code before rebuild it, but didn't work. It will be very helpful if you can guide.

Thanks,
Manoj