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Leveraging Precision in Numerical Optimization for Robotic Motions

Automated vehicles and complex robot workers are expected to be used massively soon, with positive impacts on security, health at work and productivity. To handle real-world situations, they need to compute their command as fast a... ver más

31/07/2024

INRIA

212K€

Presupuesto del proyecto: 212K€

Líder del proyecto

INSTITUT NATIONAL DE RECHERCHE EN INFORMATIQU... No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Financiación concedida El organismo HORIZON EUROPE notifico la concesión del proyecto el día 2024-07-31

HORIZON-MSCA-2021-PF-01-01: MSCA Postdoctoral Fellowships 2021 ExpectedOutcome:

I+D

Cerrada hace 3 años

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Información adicional privada

No hay información privada compartida para este proyecto. Habla con el coordinador.

1 Participantes

INRIA

211.75K€ | Lider

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Duración del proyecto: 26 meses Fecha Inicio: 2022-05-24
Fecha Fin: 2024-07-31

Líder del proyecto

INSTITUT NATIONAL DE RECHERCHE EN INFORMATIQU... No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Presupuesto del proyecto 212K€

Descripción del proyecto Automated vehicles and complex robot workers are expected to be used massively soon, with positive impacts on security, health at work and productivity. To handle real-world situations, they need to compute their command as fast as possible, but the advanced, safe control algorithms remain a computational bottleneck. To find the solution to a set of motion specifications and constraints for a robot, a widely used approach is to formulate and solve an optimization problem. The formulation is necessarily imprecise, due to modeling, sensing and estimation errors and the solution will not be executed perfectly by the robot. Yet the optimization solvers used in robotics are designed to converge to an exact solution with high precision, wasting time. In this project, I make a change of paradigm by leveraging approximations and investigate how the absence of need for high precision can be used to develop faster solvers. I study what approximations or errors are acceptable for the problem formulation and the solution, paying attention to the numeric properties of the problem. I use this knowledge to develop a solver tailored for approximate computations, with an emphasize on cheap but imprecise inner iterations and early termination. It will also handle gracefully infeasible situations due to errors, making it safer to operate in real conditions. To make the study, and test and benchmark the solver, I focus on two families of control problems: model predictive control and instantaneous linearized control, applied to a wide variety of systems, from buses, to rockets, to humanoid robots. This solver will have important impacts: make it possible to achieve real-time control for the most complex system; allow to keep real-time, when it was already possible, while enriching the problems; reduce the computing power and energy consumption required for a given robot. Understanding and handling imprecisions would also allow to build less precise and thus cheaper robots.

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