On the network virtual simulation experimental center construction research and practice
Through the virtual experimental teaching management system, teachers can build typical experiments or access to the experimental case, the network virtual simulation experimental center construction research and practice of how to carry out?
With the booming development of computer technology and network technology, people have been inseparable from the network all the time. [1] In China there have been some institutions of the laboratory introduced virtual instrumentation system, such as Shanghai Fudan University, Shanghai Jiaotong University, Huazhong University of Science and Technology, Guangzhou Jinan University and so on. In the next few years, China will have 50% of the instruments for virtual instruments. With the development of microcomputers, virtual instruments will gradually replace the traditional test instruments and become the mainstream of test instruments.
1 technical route
With the development of the Internet, information, consumption, production and wisdom interconnected, it gives us a great spirit, this spirit is called cooperation *** win, *** build *** enjoy. 2016 a day, the author in the self-service bank to meet a few foreigners there to press to press, from time to time to send out a variety of questionable sounds, seemingly unable to complete the operation they wanted. Thinking that they must not be able to use the ATM, the author took the initiative to ask with concern?Can I help you (need help?)? I didn't expect their answer to surprise me: "We are looking for restaurant". Help them find the restaurant they want, I can not help but reflect: since the ATM is networked, is it also possible to take full advantage of network technology to further extend its functions, query to the nearby restaurants, hotels and so on. You can even query the nearby schools and log in to their experimental centers. Figure 1 for the virtual simulation experiment center login page.
Through the virtual experimental teaching management system, teachers can both build typical experiments or call up experimental cases. Conveniently assign experimental tasks to students, but also after the end of the experiment to view the students' experimental results, give experimental grades and evaluation. [2]
The construction of the virtual simulation experimental teaching center, will be part of the purely demonstrative, verification of the experimental teaching content to students to carry out virtual experiments; basic skills training and basic experimental projects to virtual experiments to assist the entity to carry out experiments, compression of the entity laboratory about the experimental principles, experimental steps, instrumentation, precautions, such as the lecture time, to further save the limited ` Experimental hours, more time for students to practice, the saved hours can be used to open some comprehensive, design experiments and research experiments. Typical experiments are usually designed by teachers who are proficient in related courses. Students are required to conduct experiments on this basis. It can meet teachers' needs for experimental teaching at all levels. The experimental simulation platform also provides the possibility for students to freely build experimental simulations. Students can not only operate through the experimental simulation platform, but also design experiments independently, which is conducive to the cultivation of design ability and innovative consciousness. Similar to the equipment library (or instrument, equipment, material library), the virtual experimental platform usually has an equipment column. It is used for the management of various types of virtual experimental equipment. Students can move equipment from the equipment bar to the lab bench, or retrieve equipment from the lab bench to the equipment bar.
2 Research Methods
Action Research Method. Strictly speaking, action research is not an independent research method, but a kind of educational research activities, is a kind of teachers and educational administrators closely combined with the work of the comprehensive use of a variety of effective research methods, in order to directly promote the improvement of educational work for the purpose of educational research activities. The members of the subject group are from the school front-line workers and school administrators, the research to do the combination of learning, practice, reflection, and enhance the practical significance of the results of the subject. [3]
Survey research method. Investigation of the establishment and use of virtual simulation laboratories at home and abroad, from which to learn advanced experience and technology, to avoid detours in the research process. A survey research report was written.
Literature research method. During the research process, a large amount of literature was consulted to learn from the experience and practice of similar topics, which played an important role in drawing qualitative conclusions for the experiment.
Comparative research method. In the research process of this topic, the collection and analysis of information was compared in many ways. First, the comparison of the school, the comparison of the school segments, etc.; Second, the comparison of types, the comparison of intelligence and creativity, etc.; Third, the comparison of the experimental effect, such as the comparison of trade-offs in the process of screening materials, the comparison of the same type of statistical data in the data, inference and so on.
Case study method. Scientific identification and study of typical cases for research is a shortcut to the study of the subject, the study, the subject group to provide a number of successful cases, comparing the various strengths and weaknesses, used to apply to the subject. [4]
3 simulation examples
Microcontroller is a mandatory course in electronic information class, and its application has been involved in all aspects of life. To really learn to use, need to learn more practice, master its programming skills. Take the AT89C52 microcontroller to realize the analog electronic piano as an example, the microcontroller extends the passive buzzer to realize the function of the electronic piano. 7 keys KEY1, KEY2, KEY3, KEY4, KEY5, KEY6 and KEY7, corresponding to the 7 notes, respectively, Fig. 2 is the hardware circuit of the microcontroller analog electronic piano. The buzzer emits the corresponding tone when pressed; a music autoplay function can also be designed to loop according to the deposited sheet music.
4 Conclusion
The establishment of an open online virtual laboratory, the use of virtual reality technology to simulate real experiments. The use of multimedia technology to establish a virtual laboratory environment on the computer, providing operable virtual experimental instruments, so that students on the Internet through close to the real human-computer interaction interface to complete the experiment, while providing a network of experimental teaching integrated management functions. This will be the new way of experimental teaching in the future.
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