Scalable Multi-Robot System for Non-myopic Spatial Sampling

05/20/2021 ∙ by Sandeep Manjanna, et al. ∙ 0

This paper presents a distributed scalable multi-robot planning algorithm for non-uniform sampling of quasi-static spatial fields. We address the problem of efficient data collection using multiple autonomous vehicles. In this paper, we are interested in analyzing the effect of communication between multiple robots, acting independently, on the overall sampling performance of the team. Our focus is on distributed sampling problem where the robots are operating independent of their teammates, but have the ability to communicate their states to other neighbors with a constraint on the communication range. We design and apply an informed non-myopic path planning technique on multiple robotic platforms to efficiently collect measurements from a spatial field. Our proposed approach is highly adaptive to challenging environments, growing team size, and runs in real-time, which are the key features for any real-world scenario. The results show that our distributed sampling approach is able to achieve efficient sampling with minimal communication between the robots. We evaluate our approach in simulation over multiple distributions commonly occurring in nature and on the real-world data collected during a field trial.



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