Abstract
Safe, yet efficient, Human-robot interaction requires real-time-capable and flexible algorithms for robot control including the human as a dynamic obstacle. Even today, methods for collision-free motion planning are often computationally expensive, preventing real-time control. This leads to unnecessary standstills due to safety requirements. As nature solves navigation and motion control sophisticatedly, biologically motivated techniques based on the Wavefront algorithm have been previously applied successfully to path planning problems in 2D. In this work, we present an extension thereof using Spiking Neural Networks. The proposed network equals a topologically organized map of the work space, allowing an execution in 3D space. We tested our work on simulated environments with increasing complexity in 2D with different connection types. Subsequently, the application is extended to 3D spaces and the effectiveness and efficiency of the used approach are attested by simulations and comparison studies. Thereby, a foundation is set to control a robot arm flexibly in a workspace with a human co-worker. In combination with neuromorphic hardware this method will likely achieve real-time capability.
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The research leading to this paper received funding as the project NeuroReact from the Baden-Württemberg Stiftung under the research program Neurorobotik.
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Steffen, L., Liebert, A., Ulbrich, S., Roennau, A., Dillmannn, R. (2020). Adaptive, Neural Robot Control – Path Planning on 3D Spiking Neural Networks. In: Farkaš, I., Masulli, P., Wermter, S. (eds) Artificial Neural Networks and Machine Learning – ICANN 2020. ICANN 2020. Lecture Notes in Computer Science(), vol 12397. Springer, Cham. https://doi.org/10.1007/978-3-030-61616-8_41
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