Abstract
We consider the problem of seeking the maximum of a scalar signal using a swarm of autonomous vehicles equipped with sensors that can take point measurements of the signal. Vehicles are not able to measure their current position or to communicate with each other. Our approach induces the vehicles to perform a biased random walk inspired by bacterial chemotaxis and controlled by a stochastic hybrid automaton. With such a controller, it is shown that the positions of the vehicles evolve towards a probability density that is a specified function of the spatial profile of the measured signal, granting higher vehicle densities near the signal maxima.
This material is based upon work supported by the Inst. for Collaborative Biotechnologies through grant DAAD19-03-D-0004 from the U.S. Army Research Office. The first author was partially funded by CAPES (Brazil) grant BEX 2316/05-6.
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Mesquita, A.R., Hespanha, J.P., Åström, K. (2008). Optimotaxis: A Stochastic Multi-agent Optimization Procedure with Point Measurements. In: Egerstedt, M., Mishra, B. (eds) Hybrid Systems: Computation and Control. HSCC 2008. Lecture Notes in Computer Science, vol 4981. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-78929-1_26
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DOI: https://doi.org/10.1007/978-3-540-78929-1_26
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