Robot Lawnmowers - Radar for Grass or Shrub height measurement

Projects General Guidance
1

Hey All,

I've seen a lot of demonstrations of TI mmWave radar chips, whereby either a range profile is shown (peak energy against distance) or other visualisations which show the concept in 2D or 3D: a good example is https://www.youtube.com/watch?v=kF2urbqBJPw

What I'm getting at, is a mmWave radar which, if pointed from above, should shoot down and return 1) the highest energy peak at the ground and 2) lower energy peaks of the grass tops.

From this it should be possible to detect the height of shrubs or tall grass and warn a robot lawnmower.

My question is

  1. is my thinking correct?

  2. I haven't seen any similar demonstrations of the other types of arduino-compatible mmWave products. They mostly give distance or velocity. I haven't seen any give a range profile. But I thought they should all be capable of doing that?

Does anyone know of any mmWave products for arduino that can do range profiles, or do I need to get a TI eval board?

Thank you ^.^

mmWave Radar
mmWave Radar2452×1065 74.4 KB

2

Read the datasheet and/or application manual, examples. Don't just buy the sales talking.

3

Try it and see. People would be interested in your results.

4

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