Multimedia Terminal Tactile Reproduction Technology Merged Electrostatic Force And Vibration

Tactile interaction can achieve bi-directional information and energy interaction which cannot be realized by other sensory channels,which improves the realism and immersion of human-computer interaction,so it is well worth studying.Multimedia terminal tactile reproduction technology based on naked-hand interactive is of great concern,because it is more in line with the nature of human-computer interaction.Single tactile reproduction technology is limited by the dimension and magnitude of the feedback force,resulting in an unsatisfactory tactile reproduction effect.Therefore,it is a very important scientific issue how to merge multiple tactile reproduction techniques and improve the quality of tactile reproduction.In this paper,it is studied that multimedia terminal tactile reproduction technology merged electrostatic force and vibration.By changing tangential and normal force on the finger at the same time,the dimension and magnitude of tactile feedback force are increased,which improves the quality of tactile reproduction.This study provides a reference for the research and development of three-dimensional tactile reproduction technology based on planar interaction.The main work and innovation of this paper are as follows:(1)Analysis the principle of tactile reproduction technology merged electrostatic force and vibration.Demonstrate the feasibility of the merged technology from the perspective of merged device and algorithm.Establish the mechanical model of merged technology and determine that “electrostatic force changes the tangential force and vibration changes the normal force on the finger”.It solves the theoretical problems of merged technology and lays a theoretical foundation for device development and application design.(2)Design the hardware structure scheme of tactile reproduction device merged electrostatic force and vibration.Analysis the functional requirements,working principle,design ideas and component selection of various functional modules based on work procedure of the device.According to functional requirements of the merged device,design the slave computer driver framework,upper computer user-interface and communication interface protocol,and write the corresponding function codes to realize the drive of device.Further,a tactile reproduction device merged electrostatic force and vibration is developed to solve the device problem of the merged technology,which also provides hardware support for further research of the merged technology.(3)Test the tactile feedback force,drive signal error and system delay of the tactile reproduction device merged electrostatic force and vibration.Study the characteristics of drive signal parameters of the merged device,which determines the relationship between the drive signal and tactile feedback force,and the threshold value of human body's tactile drive signal for subsequent application.Propose a graphics-based rendering algorithm,which restore the rendered virtual object from the force on the finger,and experiment results show that the merged device and algorithm improve the tactile rendering effect.Study the impact of tactile feedback on zoom-in interactive gestures,and draw a conclusion that tactile feedback can improve the efficiency and accuracy of zoom-in operation,moreover zoom-in gestures based on tactile feedback is in accordance with Fitts' Law.Through the performance testing and application research of the merged device,verify the effectiveness of the device,and also provide guidance for the application of this merged technology on multimedia terminals.In this paper,multimedia terminal tactile reproduction technology merged electrostatic force and vibration is studied from basic theory,hardware device,software driver,algorithms and applications,which provides guidance for the three-dimensional tactile reproduction based on planar interaction.