传感技术学报2024，Vol.37Issue(4)：569-580,12.DOI:10.3969/j.issn.1004-1699.2024.04.003
基于新型柔性触觉传感器的摩尔斯电码分类识别研究
Morse Code Classification and Recognition Based on a Novel Flexible Tactile Sensor
摘要
Abstract
Tactile perception is an important way for people to connect with the outside world.it is important to give the robot touch per-ception ability in the human-machine interaction system.Based on the piezoelectric characteristics of polyvinylidene fluoride(PVDF),a new piezoelectric flexible touch sensor with high sensitivity(15.02 mV/N)is designed and prepared by using 3D printing technology.By tapping the Morse code of the"0-9"number on the surface of the sensor,the 4 000-dimensional voltage time series signals from 3 000 sets of sensors are collected as the experimental sample set.On this basis,a fusion network model of Convolutional Neural Net-work(CNN)and Gated Recurrent Unit(GRU)with strong feature extraction ability is constructed,which is used to recognize the Morse code of the number"0～9",and the average recognition accuracy is 98.17%.The results show that the new flexible tactile sensor studied can accurately perceive and distinguish the knock modes of different Morse codes,CNN-GRU can be well applied to the classification and recognition of contact modes of flexible tactile sensors because of its time series memory ability.关键词
压电式柔性触觉传感器/分类识别/CNN-GRU模型/摩尔斯电码/接触模式Key words
piezoelectric flexible tactile sensor/classification recognition/CNN-GRU Model/Morse code/contact mode分类
信息技术与安全科学引用本文复制引用
王菲露,孙牛平,宋杨,蒋秀丽,章王勇,章英..基于新型柔性触觉传感器的摩尔斯电码分类识别研究[J].传感技术学报,2024,37(4):569-580,12.基金项目
安徽省高校自然科学研究(重点)项目(2023AH050180) （重点）
安徽省住房城乡建设科学技术计划项目(2021-YF24,2022-YF168) （2021-YF24,2022-YF168）
安徽省新时代育人(研究生教育)质量工程项目(2022qyw/sysfkc029,2023szsfkc103,2023xscx111) （研究生教育）
安徽建筑大学质量工程项目(2023jy15) （2023jy15）
