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基于ARM的多通道食品安全分析系統(tǒng)的研究

發(fā)布時(shí)間:2018-02-24 18:46

  本文關(guān)鍵詞: ARM Linux Yaffs QT 光電檢測(cè) 多通道 吸光度 食品安全 出處:《吉林大學(xué)》2013年碩士論文 論文類型:學(xué)位論文


【摘要】:伴隨著經(jīng)濟(jì)高速發(fā)展而來的,除了人們?nèi)招略庐惖纳钏,還有各種各樣的問題,例如環(huán)境污染,例如食品安全,無一不讓人們?cè)诟锌鐣?huì)進(jìn)步的同時(shí),痛心這些或是為了經(jīng)濟(jì)發(fā)展,或是為了個(gè)人利益而帶來的沉重代價(jià)。本文的目的是搭建一個(gè)多通道食品安全分析系統(tǒng),最終目的是解決人們最為關(guān)注的食品安全問題。 本研究的ARM處理器采用的是三星公司的S3C2410A,它基于ARM920T內(nèi)核,采用16/32位RISC指令集,內(nèi)部集成存儲(chǔ)控制器、mmu、以及大量外設(shè)控制器。它具有體積小,功耗低,運(yùn)算速度快等諸多優(yōu)點(diǎn)。另外,本系統(tǒng)還配備了LCD液晶顯示器、USB鍵盤、SD卡、網(wǎng)卡等諸多外圍器件。其中,LCD液晶顯示器和USB鍵盤可以構(gòu)成獨(dú)立的終端和控制臺(tái),SD卡在這里用于存儲(chǔ)檢測(cè)結(jié)果和應(yīng)用程序,網(wǎng)卡則是用于上位機(jī)和下位機(jī)之間搭建用作共享的NFS文件系統(tǒng)。 在系統(tǒng)方面,本文采用的是Linux2.6操作系統(tǒng)內(nèi)核和Yaffs文件系統(tǒng)。Linux操作系統(tǒng)內(nèi)核和Yaffs文件系統(tǒng)為開源代碼,除了可以降低本系統(tǒng)的整體成本之外,更是具備了眾多的開源社區(qū)的支持。除此之外,Linux操作系統(tǒng)還具有穩(wěn)定性高、可擴(kuò)展性好、維護(hù)容易等優(yōu)點(diǎn),是嵌入式設(shè)備操作系統(tǒng)的首選。Yaffs文件系統(tǒng)是一種具備日志功能的文件系統(tǒng),體積小、功能全等特點(diǎn)使得它被很多嵌入式設(shè)備應(yīng)用。另外,針對(duì)本系統(tǒng)的硬件外設(shè),本文中也詳細(xì)的闡述了他們各自的驅(qū)動(dòng)移植過程。 在應(yīng)用層,我們使用QT作為圖形界面的開發(fā)工具,它是一種跨平臺(tái)的圖形用戶界面庫(kù)。它在C++語(yǔ)言的基礎(chǔ)上,封裝了應(yīng)用程序中常被使用的多種圖形類。大量的窗口部件,豐富的API,以及各種開發(fā)文檔,都為本文的開發(fā)帶來了極大的便利。 本文是基于ARM的多通道食品安全分析系統(tǒng),本系統(tǒng)采用鎢燈作為光源,單色器為分光元件,,利用光電采集技術(shù)將光信號(hào)轉(zhuǎn)換為電信號(hào)傳入A/D轉(zhuǎn)化器中。并且根據(jù)采集的數(shù)據(jù)和朗伯-比爾定律進(jìn)行吸光度計(jì)算以及樣品含量計(jì)算。搭載的LCD顯示器、SD卡、鍵盤等外圍設(shè)備用于顯示、操作和存儲(chǔ)檢測(cè)結(jié)果。
[Abstract]:Along with the rapid economic development, in addition to the ever-changing living standards of people, there are all kinds of problems, such as environmental pollution, such as food safety, all of which make people feel the progress of society at the same time. The purpose of this paper is to build a multi-channel food safety analysis system, the ultimate purpose of which is to solve the food safety problems that people are most concerned about. The ARM processor in this study is based on the ARM920T kernel, 16/32 bit RISC instruction set, internal integrated storage controller, and a large number of peripheral controllers. It has small size and low power consumption. In addition, the system is equipped with LCD LCD, USB keyboard and SD card. The LCD LCD and USB keyboard can be used as independent terminals and console SD cards to store the test results and applications. The network card is used to set up the NFS file system between the upper computer and the lower computer. In the aspect of system, the kernel of Linux2.6 operating system and the kernel of Yaffs file system. The kernel of Yaffs file system and the kernel of Yaffs file system are adopted as open source code, which can reduce the whole cost of the system. In addition, Linux has the advantages of high stability, good expansibility, easy maintenance and so on. Yaffs file system is the first choice of embedded device operating system. Yaffs file system is a kind of file system with log function. This article also describes their respective driver migration process in detail. In the application layer, we use QT as the development tool of graphical interface. It is a cross-platform graphical user interface library. Rich API, as well as various development documents, for the development of this article brought great convenience. This paper is a multi-channel food safety analysis system based on ARM. The system uses tungsten lamp as light source and Monochromator as splitter. The optical signal is converted into the electrical signal into the A / D converter by using the photoelectric acquisition technology. The absorbance and sample content are calculated according to the collected data and Lamber-Beer 's law. The SD card of the LCD display is carried out. Peripheral devices such as keyboards are used to display, operate, and store test results.
【學(xué)位授予單位】:吉林大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2013
【分類號(hào)】:TP368.1;TS201.6

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