Research And Implementation Of Human-Computer Interaction Mode For Chemical Experiments

With the continuous promotion of quality education in the 21 st century,cultivating students’ practical hands-on ability has become an indispensable part of chemistry laboratory teaching.Through chemistry laboratory teaching,students can not only deepen their understanding of chemical knowledge in operation,but also improve their hands-on ability,develop practical skills and enhance their competitiveness.Therefore,strengthening chemistry laboratory teaching and cultivating students’ practical hands-on ability is not only necessary to improve the quality of chemistry teaching,but also one of the effective ways to promote quality education.At present,there are many problems in the secondary school experimental classroom.On the one hand,there are dangerous consequences such as explosions and poisoning during the experiments;on the other hand,teachers in the central and western regions have weaker teachers,and some teachers do not have a clear grasp of experimental principles.At the same time,the teaching mode of many experimental courses takes the way of teachers leading students to watch videos,which is not conducive to students’ mastery of knowledge points.Driven by the development of information technology,the virtual experiment platform has become one of the important tools in the field of education.However,there are many problems with the current virtual lab platforms.(1)The design of desktopbased interaction makes students lack a strong sense of experience in operation;(2)The design of a single experimental process also makes the system lack of intelligence,which is not conducive to students to conduct exploratory experiments.Therefore,in response to the current lack of operational experience and low efficiency of human-computer interaction in virtual experimental platforms,this article designs an intelligent test tube for middle school chemistry experiments,proposes two new methods for understanding intentions,and designs a new gaming experimental mode based on this.The main research content and innovative points of this article are summarized as follows:(1)We designed and implemented an intelligent test tube hardware structure applied to the virtual reality fusion experimental platform,allowing students to have a sense of physical operation experience during the experimental process.A situational awareness algorithm has been proposed for intelligent test tubes,which can effectively handle the high light problem in the collection of test tube liquid levels.The image is processed using liquid level segmentation technology,and then the situational relationship is established through Matlab fitting to achieve real-time perception of the tilting direction and angle of the intelligent test tube.This enables real-time monitoring of students’ tilting operations,thereby ensuring the accuracy of the experiment.(2)We constructed and implemented two multimodal information fusion intent understanding methods,aiming to improve the intelligence of human-computer interaction in the virtual experiment platform and laying the foundation for further construction of an intelligent navigation-based experiment interaction model.The first method integrates information from visual,auditory,and tactile channels to construct a fusion strategy of complementary and independent information.This model can fully utilize the advantages of multimodal information,understand users’ intentions,and achieve human-machine interaction.The second method is a multimodal information fusion algorithm based on dynamic weighting of multi-channel information quality evaluation.Introduce scenario information to solve the problem of missing information capture of human behavior by computers during the experimental process;Evaluating the quality of obtained multi-channel information and dynamically assigning weights during fusion provides a solution to address issues such as fuzzy expression of multimodal information and information redundancy.(3)We designed and implemented an intelligent experimental prototype system based on virtual reality fusion,which combines game mode and intelligent navigation mode,providing a novel human-computer interaction experimental mode for intelligent chemistry experiments.Based on the understanding of intention,we introduced the incentive and challenge mechanisms in the flow theory,and proposed a human-computer interaction game strategy during the experimental process to stimulate students’ learning enthusiasm and initiative,enabling them to better integrate into the experimental process.The intelligent experimental system that integrates virtual and real not only enhances students’ learning interest and participation,but also can be widely applied in fields such as science education and technical training,providing students with a richer and more comprehensive learning experience.