Ultrathin Multichannel Epidermal Electrodes Array Patch Design And Human-Machine Interaction

Ultrathin large-scaled epidermal electronics is an updated generation of flexible electronic devices,which can be widely applied to many fields like wearable electronics,health monitoring,human-machine interaction and so on.The thesis mainly focuses on the field of HMI,and an ultrathin epidermal electrodes array patch would be designed and fabricated to complete closed-loop control between human and robot hand based on the interaction algorithm.The main works are as follows:Design a serpentine-shaped ribbon structure for fitting soft and stretchable skin,and optimize the parameters appeared in the structure to enhance the electrical performance of electrodes simultaneously.Finally prove the superiority of this structure in terms of the stretchability,conformal performance and electrical performance by the combination of theoretical analysis,finite element simulation and experiments.Propose a set of process for ultrathin large-scaled epidermal electronic processing and manufacturing,which could be simply operated and low-cost.Make full use of the water transfer paper to realize areal manufacturing,and the material which loses its stickiness when meets water in it would be treated as a sacrificial layer.The mechanical cutting machine would replace the traditional lithography process to pattern the electrodes.And propose a set of general cutting parameters by theoretical calculation and experiments.Analysis the mechanism and algorithm of Human-machine interaction closed-loop system.Therein,the gesture control process includes signal acquisition,signal filtering,feature extraction,and mode recognition algorithms.The stimulation function of electro tactile is calculated from a simplified electrical model under skin.And the effect of stimulation is verified by simulation and vibration classification experiments.In order to verify the effective application of ultrathin epidermal electrodes array patch in human-machine interaction system,the thesis takes the example of gestures control,respectively carrying out the gesture recognition tasks with or without electro tactile feedback,and the results show that the electrodes array design of this work would win high success rate of recognition,which contributing a certain significance in future application and research.