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SpikeATac: A Multimodal Tactile Finger with Taxelized Dynamic Sensing for Dexterous Manipulation

Chang, Eric T., Ballentine, Peter, He, Zhanpeng, Kim, Do-Gon, Jiang, Kai, Liang, Hua-Hsuan, Palacios, Joaquin, Wang, William, Piacenza, Pedro, Kymissis, Ioannis, Ciocarlie, Matei

arXiv.org Artificial Intelligence

In this work, we introduce SpikeATac, a multimodal tactile finger combining a taxelized and highly sensitive dynamic response (PVDF) with a static transduction method (capacitive) for multimodal touch sensing. Named for its `spiky' response, SpikeATac's 16-taxel PVDF film sampled at 4 kHz provides fast, sensitive dynamic signals to the very onset and breaking of contact. We characterize the sensitivity of the different modalities, and show that SpikeATac provides the ability to stop quickly and delicately when grasping fragile, deformable objects. Beyond parallel grasping, we show that SpikeATac can be used in a learning-based framework to achieve new capabilities on a dexterous multifingered robot hand. We use a learning recipe that combines reinforcement learning from human feedback with tactile-based rewards to fine-tune the behavior of a policy to modulate force. Our hardware platform and learning pipeline together enable a difficult dexterous and contact-rich task that has not previously been achieved: in-hand manipulation of fragile objects. Videos are available at \href{https://roamlab.github.io/spikeatac/}{roamlab.github.io/spikeatac}.


New Information Technologies, Simulation and Automation

Velychko, Vitalii, Voinova, Svitlana, Granyak, Valery, Ivanova, Liliia, Kotlyk, Sergii, Kudriashova, Alona, Kunup, Tetiana, Malakhov, Kyrylo, Pikh, Iryna, Punchenko, Nataliia, Senkivskyy, Vsevolod, Sergeeva, Olexandra, Sokolova, Oksana, Fedosov, Sergiy, Khoshaba, Oleksandr, Tsyra, Olexandra, Chaplinskyy, Yuri, Gurskiy, Olexander, Zavertailo, Kostiantyn, Kotlyk, Diana

arXiv.org Artificial Intelligence

The monograph summarizes and analyzes the current state of development of computer and mathematical simulation and modeling, the automation of management processes, the use of information technologies in education, the design of information systems and software complexes, the development of computer telecommunication networks and technologies most areas that are united by the term Industry 4.0