Magnetic Array Assisted Triboelectric Nanogenerator Sensor for Real-Time Gesture Interaction

Abstract

In human-machine interaction, robotic hands are useful in many scenarios. To operate robotic hands via gestures instead of handles will greatly improve the convenience and intuition of human-machine interaction. Here, we present a magnetic array assisted sliding triboelectric sensor for achieving a real-time gesture interaction between a human hand and robotic hand. With a finger’s traction movement of flexion or extension, the sensor can induce positive/negative pulse signals. Through counting the pulses in unit time, the degree, speed, and direction of finger motion can be judged in real-time. The magnetic array plays an important role in generating the quantifiable pulses. The designed two parts of magnetic array can transform sliding motion into contact-separation and constrain the sliding pathway, respectively, thus improve the durability, low speed signal amplitude, and stability of the system. This direct quantization approach and optimization of wearable gesture sensor provide a new strategy for achieving a natural, intuitive, and real-time human-robotic interaction.

Superflexible and Lead-Free Piezoelectric Nanogenerator as a Highly Sensitive Self-Powered Sensor for Human Motion Monitoring

“…The detections of human body motions (i.e., movements of joints [1][2][3], diaphragmatic breathing [4], and heartbeats [5][6][7]) are increasingly interesting with the rapid development of biomedical field [8][9][10] and intelligent bionic robot industry [11][12][13]. Various kinds of sensors are required to be implanted in the human body, as a result, the recharge and overhaul of batteries are unavoidable.…”

Progress in the Triboelectric Human–Machine Interfaces (HMIs)-Moving from Smart Gloves to AI/Haptic Enabled HMI in the 5G/IoT Era

“…Other flexible solutions based on resistive [13][14][15][115][116][117], optical fiber [25,27], etc., also reveal their own drawbacks, e.g., temperature effect, limited sensing range, etc. Thus, the emerging sensing technology based on triboelectric, with the advantages of diversified material selection, extremely simplified design and self-powered characteristics, provides a new research direction for designing the next generation of low-power data gloves [118][119][120][121][122][123][124].…”

Artificial Intelligence of Things (AIoT) Enabled Virtual Shop Applications Using Self‐Powered Sensor Enhanced Soft Robotic Manipulator

“…[ 79 , 80 ] Compared with flexible piezoelectric‐based sensors, TENGs possess the advantages of low cost, high flexibility brought by the wide options of materials, making it being widely explored as self‐powered wearable sensors for strain, tactile, and gesture sensing. [ 7 , 81 , 82 , 83 , 84 , 85 , 86 , 87 , 88 , 89 , 90 , 91 , 92 , 93 , 94 , 95 ] Meanwhile, pyroelectric‐based sensors with the self‐generated electrical signals when encountered with temperature changes, [ 96 , 97 , 98 , 99 , 100 ] can be utilized as self‐powered temperature sensing units. With the increasing demand of flexibility for the wearable scenario, polymer pyroelectric materials, such as poly(vinylidene fluoride) (PVDF), polyvinylidene fluoride‐trifluoro ethylene (P(VDF‐TrFE)), have been widely investigated.…”