The System For Virtual Chemical Experiment Based On Somatosensory Technology

With the unceasing development of computer technology,the relevant hardware supporting industry has witnessed manifest progress.The cost of hardware equipment has been effectively controlled,making large-scale application of somatosensory technology possible.The popularization and application of somatosensory equipment has also brought about tremendous changes in operation and interactive methods of computer software.The body-sensing device can sense the user's position in space,body postures,and even subtle finger movements in real time through spatial sensors such as infrared cameras,depth cameras,and dual camera positioning systems.By reading the information transmitted by the sensors,the software can perceive users' actions and generate corresponding interactions accordingly and eventually operate the software successfully.In this era of rapid development of the Internet industry,the education field should be integrated with related high-tech industries.The “New Curriculum Reform” in China is deepening continuously.Meanwhile,with the development of hardware,the cost of somatosensory equipment is getting cheaper,making extensive use of somatosensory technology possible.Based on this,this thesis makes a detailed study on how to combine the somatosensory equipment with the “New Curriculum Reform' policy requirements and offers new suggestions for realizing the requirements of the New Curriculum Reform”.This thesis puts forward a curriculum reform scheme based on somatosensory technology,which mainly completes the following work:(1)This thesis analyzes the problems existing in the traditional education mode of chemical experiment course in junior and senior high schools,and the advantages of simulation experiment course based on somatosensory technology compared with traditional experiment course.(2)Starting from the user experience and the needs of the classroom environment,this thesis studies and analyzes the selection of chemical experiments suitable for somatosensory simulation,extracts the experimental process and various problems that may occur in the experimental process,and provides the direction for program development.(3)According to the research and analysis of the current popular somatosensory devices,choose the most matching hardware devices in the experimental and classroom environment,study and understand the internal operation mode and action capture principle.(4)Starting from the experimental operation and user habits,we extract the user's more commonly used gestures,design a set of interactive logic for the experimental operation,and determine four interactive gestures.The k-Nearest Neighbor algorithm is used to achieve the classification and recognition gesture with high accuracy.(5)Using the unity platform,according to the previous analysis of the experimental process,as well as the errors that may be caused in the experiment,the experiment logic is constructed,and finally the complete program is constructed to verify the effect of the somatosensory program in the chemical experiment course.This thesis will study and conclude the current development status of somatosensory technology and equipment at home and abroad,carefully analyze merits and demerits of each,take equipment performance and cost both into consideration,select the appropriate somatosensory equipment,and specifically analyze the hardware composition,operating principles and internal algorithms of selected proper somatosensory equipment.Then according to the curriculum standards and equipment characteristics,the thesis will select relevant experiments using somatosensory equipment simulation,analyze the interaction methods and system functions,plan functional algorithms and make example programs by the end to provide technical references for future development and research of somatosensory equipment in education field.