Omnidirectional tele-perception enabled by nano-architectured electret skin.

Abstract

The environmental perception capability of embodied intelligent systems is highly dependent on their physical interactions with the surrounding environment, where tele-perception serves as a key technology enabling adaptive interaction and real-time human-machine interaction (HMI). However, existing tele-perception systems are fundamentally constrained by their underlying physical mechanisms and environmental disturbances, resulting in limited sensing directionality, poor spatial resolution, and inadequate environmental robustness. To address these challenges, this study develops an omnidirectional nano-architectured electret skin (NAES) by precisely tuning charge-trapping units within the established heterogeneous interface of the charge transport layer (CTL) and charge blocking layer (CBL). The proposed architecture arranges NAES units along 0°, 45°, 90°, 135°, and four diagonal orientations, leveraging the anisotropic electrostatic disturbance responses of each unit to achieve high-precision tele-perception of omnidirectional targets in three-dimensional space. This design overcomes the unidirectional sensing limitation of conventional NAES systems, enabling enhanced spatial perception and adaptive omnidirectional interaction in complex, dynamic environments.