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Real-time pressure mapping smart insole system based on a controllable vertical pore dielectric layer
Microsystems & Nanoengineering ( IF 7.9 ) Pub Date : 2020-08-10 , DOI: 10.1038/s41378-020-0171-1
Juan Tao 1, 2 , Ming Dong 3 , Li Li 1 , Chunfeng Wang 1, 2 , Jing Li 1 , Yue Liu 1 , Rongrong Bao 1, 4, 5 , Caofeng Pan 1, 2, 4, 5
Affiliation  

Real-time monitoring of plantar pressure has significant applications in wearable biosensors, sports injury detection, and early diagnostics. Herein, an all-in-one insole composed of 24 capacitive pressure sensors (CPSs) with vertical pores in an elastic dielectric layer is fabricated by laser cutting. Optimized CPSs with a hexagonal configuration and a pore size of 600 μm possess good linearity over a wide detection range of 0–200 kPa with a sensitivity of 12 × 10–3 kPa−1. Then, a smart system including the all-in-one insole with the 24 CPS array, a data acquisition system with a wireless transmitter and a PC terminal with a wireless receiver is established for real-time monitoring to realize static and dynamic plantar pressure mapping. Based on this smart insole system, various standing and yoga postures can be distinguished, and variations in the center of gravity during walking can be recognized. This intelligent insole system provides great feasible supervision for health surveillance, injury prevention, and athlete training.



中文翻译:

基于可控垂直孔介电层的实时压力映射智能鞋垫系统

足底压力的实时监测在可穿戴生物传感器、运动损伤检测和早期诊断方面具有重要应用。在此,通过激光切割制造了由 24 个电容式压力传感器 (CPS) 组成的一体式鞋垫,在弹性介电层中具有垂直孔。具有六边形配置和 600 μm 孔径的优化 CPS 在 0–200 kPa 的宽检测范围内具有良好的线性,灵敏度为 12 × 10 –3  kPa -1. 然后,建立包括一体式鞋垫和24 CPS阵列的智能系统、带无线发射器的数据采集系统和带无线接收器的PC终端,用于实时监测,实现静态和动态足底压力测绘。 . 基于这个智能鞋垫系统,可以区分各种站立和瑜伽姿势,并且可以识别步行过程中的重心变化。这种智能鞋垫系统为健康监测、伤害预防和运动员训练提供了非常可行的监督。

更新日期:2020-08-10
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