基于Linux-Qt的DIS系統(tǒng)設(shè)計(jì)
[Abstract]:DIS (Digital Information System) is the digital information system. In order to realize the goal of integrating information technology into the subject teaching of the Ministry of Education, a new generation of teaching experiment system is produced, which is mainly suitable for the related teaching experiments, such as physical, chemical, biological and so on. It is widely used in teaching research. With the continuous development of electronic science and technology, DIS system is constantly updating to meet the new requirements of teaching and research, towards the goal of faster processing, more comprehensive collection function, more friendly interface, more convenient to carry and so on. The hardware core processor of this DIS system chooses AT91SAM9X35, built-in LCD controller and Ethernet MAC, to support high speed SD card and USB interface. It is very powerful and can meet the requirement of real-time acquisition. The main processor AT91SAM9X35 sends the acquisition command to the sensor through GM8142, and the sensor transmits the data to the collector through GM8142 or AD7323. We have built and transplanted the embedded development environment of Linux-Qt on the ARM processor and designed the user graphical interface by using Qt Creator. The collected data can be displayed in four ways under the Qt graphical interface: waveform, digital, table and pointer. In addition, in order to increase the portability and security of DIS system, a new management scheme of balancing recharge and heat backup of dual batteries is added. The functions of the system include external power supply, charge management of lithium battery, electric quantity detection and protection circuit. This version of DIS system has greatly improved in processing ability, system stability, graphical interface display, cost price, user experience and so on, basically met our expected design requirements. At present, DIS system has a broad market application prospect, I believe that with the development of science and technology and our in-depth study of DIS will have further development.
【學(xué)位授予單位】:南京大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2013
【分類號(hào)】:TP273;TP368.1
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