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嵌入式检测仪及水中油含量检测技术研究

Research of Embedded Apparatus and Technology for Measuring Oil Concentration

【作者】 钟建坡

【导师】 司光宇;

【作者基本信息】 大庆石油学院 , 计算机应用技术, 2004, 硕士

【摘要】 随着水资源的日益宝贵,及水污染的日益严重,保护水资源已成为社会各界日益关注的问题。保护水资源的必不可缺的手段就是水质检测,而水中油含量的检测又是水质检测的重要方面,所以研制水中油含量检测仪,具有重要的社会和经济价值。 本文详细介绍了基于微控制器的水中油含量检测仪的设计与实现。关于水中油含量的检测有多种方法,最常用的是红外吸光光度法,本文对吸光光度法在物质定量分析中的基本理论——Lambert-Beer定律做了简要介绍,并以此提出了系统测量的基本模型,进而设计了系统的测量逻辑。鉴于基本模型自身的特点,作为对它的补充,文中又提出了系统测量的RBFNN模型,系统测试的结果证实了这种模型的有效性。系统测量的这两种模型共存于系统中,由上层功能软件完成这两种模型的有机整合。接着从硬件、软件两方面叙述系统的具体实现,在硬件设计中,采取层次式电路设计策略,完成系统硬件的电路图设计,并建立了系统硬件的硬件抽象层;在软件设计中,引入了嵌入式多任务内核作为系统的开发平台。硬件抽象层屏蔽底层硬件细节,向上层功能软件提供稳定、友好的用户接口。嵌入式多任务内核的引入降低了系统设计的难度,更使目标系统具有很好的性能。在本文最后,对系统的电磁兼容性进行了分析、设计,以提高目标系统的可靠性和抗干扰能力。

【Abstract】 As water resource is being more and more precious, and water pollution is becoming serious increasingly, it has been become one important issue which is concerned by society to protect water resource from pollution. The indispensable method to protect water resource is to detect quality of water, and detecting oli concentration of water is the significant aspect of water quality detection, so it is very meaningful in the side of society and economy to implement the Detector of Oil Concentration.In this article, the detailed introduction is shown about design and implementation of oil concentration detector based on microcontroller. There is many a method to measure oil concentration, but the commonly used one is Infrared Absorbance Luminosity Method, so firstly the article illustrates fundamental of Absorbance Luminosity Method for quantitative analysis - Lambert Beer Law, and puts up with the basic model for system measurement, and then designs measure logic of system. In the view of characteristics of basic model, the article gives RBFNN model for system measurement as supplement to the former, the result of test for RBFNN approves that the model is effective. The two models for system measurement coexist in target system; this is maintained by the high-level software perfectly. And then the article gives concrete implementation of system from two aspects of hardware and software. For hardware design, the schematic of system hardware is finished with the strategy of Modeling Schematic Design, and setup HAL (Hardware Abstract Layer) for system hardware. For software, embedded multi-task kernel is introduced as the platform for development. HAL shields complex detail of low-level hardware, and supplies stable and friendly user interface to high-level software. The introduction of Multi-task Kernel reduces the difficulty of system design, and makes target system possess better performance. At last, the article analyzes and designs EMC ( ElectroMagnetic Compatibility ) for target system to enhance its reliability and the ability of anti-disturbance.

  • 【分类号】TP21
  • 【被引频次】2
  • 【下载频次】433
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