SmartFlex：基于姿态识别与气囊阵列的自适应腰部支撑系统
SmartFlex: An Adaptive Lumbar Support System Based on Posture Recognition and Air Bag Array
- Shanghai Foreign Language School Affiliated to SISU（上海外国语大学附属外国语学校）
机构由 AI 辅助整理，请以论文原文为准。
AI总结：
针对传统腰部支撑静态不自适应的问题，本文提出SmartFlex系统，结合姿态识别与气囊阵列，实现动态个性化支撑，识别准确率超94%，用户评分4.5/5，有效提升舒适度并减少疲劳。
AI中文摘要：
腰痛（LBP）是全球导致残疾的主要原因之一，影响范围从上班族到有久坐习惯的学生等各类人群。传统腰部支撑腰带通常是静态且非自适应的，这限制了其适应动态姿势变化和个性化舒适需求的能力。本文介绍了SmartFlex，一种智能可穿戴腰部支撑系统，它将实时姿态识别与自适应气囊阵列相结合。该系统使用JY901S陀螺仪传感器检测用户姿态，并在Arduino R4 UNO上部署轻量级TinyML神经网络，在边缘端处理姿态数据。基于识别出的姿态状态，闭环气动控制系统通过四个独立微型气泵动态充放14个分布式气囊，以提供针对性的生物力学支撑。评估结果显示，SmartFlex的姿态识别准确率超过94%，并且从感知到命令的延迟小于120毫秒，能生成相应的压力控制命令。气动系统在15-85 kPa的校准压力范围内运行。一项包含20名参与者的用户研究对支撑有效性给出了4.5/5的评分，表明自适应可穿戴支撑可能改善日常坐姿舒适度并减少腰部疲劳。
英文摘要：
Low back pain (LBP) is a leading cause of disability worldwide and affects populations ranging from working adults to students with prolonged sitting habits. Conventional lumbar support belts are generally static and non-adaptive, which limits their ability to accommodate dynamic postural changes and individualized comfort requirements. This paper presents SmartFlex, an intelligent wearable lumbar support system that integrates real-time posture recognition with an adaptive air bag array. The system uses a JY901S gyroscope sensor to detect user posture and a lightweight TinyML neural network deployed on an Arduino R4 UNO to process posture data at the edge. Based on the recognized posture state, a closed-loop pneumatic control system dynamically inflates or deflates 14 distributed air bags through four independent micro air pumps to provide targeted biomechanical support. Evaluation results show that SmartFlex achieves over 94% posture recognition accuracy and generates corresponding pressure-control commands with a sensing-to-command delay of less than 120 ms. The pneumatic system operates within a calibrated pressure range of 15-85 kPa. A user study with 20 participants produced a 4.5/5 rating for support effectiveness, suggesting that adaptive wearable support may improve daily sitting comfort and reduce lumbar fatigue.
