Soft interfaces with self-sensing
capabilities play an essential
role in environment awareness and reaction. The growing overlap between
materials and sensory systems has created a myriad of challenges for
sensor integration, including the design of a multimodal sensory,
simplified system design capable of high spatiotemporal sensing resolution
and efficient processing methods. Here we report a bioinspired soft
sensor array (BOSSA) that integrates pressure and material sensing
capabilities based on the triboelectric effect. Cascaded row + column
electrodes embedded in low-modulus porous silicone rubber allow rich
information to be captured from the environment and further analyzed
by data-driven algorithms (multilayer perceptrons) to extract higher
level features. BOSSA demonstrates the ability to identify 10 users
(98.9%) and identify the placement or extraction of 10 objects (98.6%).
Moreover, its scalable fabrication facilitates large-area sensor arrays
with high spatiotemporal resolution and multimodal sensing abilities
yet with a less complex system architecture. These features may be
promising in the development of immersive sensing networks for intelligent
monitoring and stimuli response in smart home/industry applications.
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