I don't know about them but here we have a small company (founded 2012) in Switzerland doing the same (but with something less bulky...): https://www.ecorobotix

I don't know about them but here we have a small company (founded 2012) in Switzerland doing the same (but with something less bulky...): https://www.ecorobotix.com/en/autonomous-robot-weeder/ https://www.ecorobotix.com/en/autonomous-robot-weeder/