Digital experimental system based on universal serial bus (USB) and virtual instrument

Abstract

The invention discloses a digital experimental system based on a universal serial bus (USB) and a virtual instrument. The digital experimental system comprises a computer, a digital circuit experimental instrument module and an experimental chip, wherein the computer and the digital circuit experimental instrument module communicate through a USB port signal line and supply power to a digital circuit experimental instrument system and the experimental chip through a USB port of the computer; and a connecting line between the digital circuit experimental instrument module and the experimental chip is a standard C2 self-locking connector. By employing the digital experimental system based on the USB and the virtual instrument, a microcomputer serves as the basis, an integrated test platform is constructed, a conventional instrument is replaced, the requirements of electrician and electronic experiment teaching are met, the microcomputers can serve as computers for other computer course teaching, the equipment utilization rate is greatly improved, the resource sharing is realized, the experimental construction cost is reduced, and due to the introduction of the virtual instrument, an experimental teaching mode of combining the actual operation and the computer simulation is determined.

Description

technical field [0001] The invention relates to the technical field of virtual instruments, in particular to a digital experiment system based on USB and virtual instruments. Background technique [0002] With the development of science and technology, the society has higher and higher requirements for the innovative thinking and practical ability of college students. Strengthening the cultivation of innovative thinking and practical ability for college students is an urgent task for many engineering majors, and experimental teaching is an indispensable part of strengthening practical ability. [0003] The digital circuit course is an important professional basic course required by computer engineering, communication engineering, electronic engineering and other disciplines. It not only has its own theoretical system, but also is a highly practical course. Experimental teaching is an important part of the course, and the current experimental teaching methods have many limit...

AI Technical Summary

Problems solved by technology

[0005] 1. The price is relatively expensive

For example, a digital storage oscilloscope has the advantages of being able to observe transient real-time signals, store waveforms, and be easy to carry, but its price is relatively high, much higher than that of an analog oscilloscope

Therefore, the investment required to update traditional instruments and equipment is huge, which is difficult for ordinary schools to meet, resulting in the lack of and outdated instruments and equipment in many schools, which seriously affects teaching and scientific research.

[0006] 2. The traditional measuring instrument is a relatively independent system. The functions included in the instrument are defined by the instrument manufacturer. All functional modules exist in the measuring instrument in the form of hardware or firmware. A single instrument has a single function ,fixed

Therefore, technology updates are slow, maintenance is difficult, and it is difficult for users to change or expand instrument functions according to actual needs

[0007] 3. Traditional experimental measuring instruments are mainly composed of hardware, which are relatively easy to damage and inconvenient to operate

[0008] 4. Lagging, incomplete experimental equipment and uniform experimental mode are a big obstacle for students to master the course content. It is difficult to mobilize students' initiative and creativity, which is not conducive to the cultivation of students' ability

[0009] At present, a better solution is to use virtual instrument technology, but the equipment in this area is generally more expensive in the market, and there are great difficulties in popularization and use.

[0010] Based on the above reasons, experimental teaching requires a large number of measuring and analyzing instruments and equipment, and each instrument must be equipped with multiple sets, and some instruments and equipment are expensive, and the investment in instruments and equipment is huge, resulting in the lack of and outdated instruments and equipment in many schools. Seriously affect teaching and research

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