基于ARM11的便携式红外电路故障检测硬件系统

发布时间：2018-08-14 13:30

【摘要】：传统的电路故障检测手法主要是基于人工,需要测量电路中的电压、电流以及输入、输出参数,结合故障现象和电路的原理图,对故障进行仔细分析和推敲,才能诊断出现故障的电路或者出现故障的元器件。电子技术发展非常迅速,电子电路板上的元器件密集程度增加,元器件封装尺寸变小,大规模和超大规模集成电路已经得到了广泛应用,传统检测手法已经很难满足现代检测需求。基于红外成像技术的电路故障检测系统,由于其非接触、安全、直观和快速等优点,得到了广泛的推广,在电路故障检测领域有广阔前景。现有的红外电路故障检测系统主要基于PC平台,控制能力强,内部资源丰富,运算能力强大,适合算法研究。但是,PC平台是面向大众的,所以基于PC平台的红外检测仪有体积大、笨重和不方便携带的缺点。由于嵌入式系统是为特殊用户设计的,满足其特殊需求所设计的系统,并且具有可裁剪的特点,因而具有高度集成、体积小、功耗低和维护方便等优点。本文基于嵌入式系统的优点,采用ARM11作为红外电路故障检测的平台,开发低成本、高效和高携带性的红外电路故障检测系统。本文主要阐述以ARM11为平台的红外电路故障检测仪的原理和系统硬件,主要的研究内容如下： (1)阐述红外电路故障检测技术的历史和原理以及嵌入式处理终端的优势； (2)总体分析红外电路故障检测系统的构架,设计系统的总体方案； (3)在了解ARM11构架的基础上详细设计硬件原理图,将整体电路分为图像处理及显示模块、存储模块、外围电路模块、图像采集和视频编解码模块； (4)将LINUX操作系统经过裁剪和编译最后移植到红外电路故障检测系统并进行实验验证红外电路故障检测系统可以正常工作本文主要创新点是：放弃传统的PC平台,提出了基于嵌入式平台的红外电路故障检测设备,在减小体积,减小重量以及提高便携性方面有很大进步。据本人所知,现在国内尚未见到采用ARM11作为红外电路故障检测系统平台的成熟的论文和报道。经过软硬件测试表明,本文所设计的便携式红外电路故障检测系统能完成红外图像采集和电路故障检错,且性能稳定,达到预期目标。
[Abstract]:The traditional circuit fault detection method is mainly based on manual, it needs to measure the voltage, current, input and output parameters of the circuit, combined with the fault phenomenon and circuit schematic diagram, the fault is carefully analyzed and examined. To diagnose faulty circuits or faulty components. With the rapid development of electronic technology, the density of components on electronic circuit boards has increased, the package size of components has become smaller, and large scale and very large scale integrated circuits have been widely used. Traditional detection techniques have been difficult to meet the needs of modern detection. The circuit fault detection system based on infrared imaging technology, because of its advantages of non-contact, safety, intuitionistic and fast, has been widely popularized, and has a broad prospect in the field of circuit fault detection. The existing infrared circuit fault detection system is mainly based on PC platform, which has strong control ability, rich internal resources and powerful operation ability, which is suitable for algorithm research. But the PC platform is open to the public, so the infrared detector based on PC platform has the disadvantages of large volume, heavy and inconvenient to carry. Because the embedded system is designed for special users and meets its special needs and has the characteristics of tailoring, it has the advantages of high integration, small size, low power consumption and easy maintenance. Based on the advantages of embedded system, this paper uses ARM11 as the platform of infrared circuit fault detection, and develops a low cost, high efficiency and high portability infrared circuit fault detection system. This paper mainly describes the principle and hardware of the infrared circuit fault detector based on ARM11. The main research contents are as follows: (1) the history and principle of the infrared circuit fault detection technology and the advantages of the embedded processing terminal; (2) analyze the frame of the infrared circuit fault detection system and design the overall scheme of the system; (3) on the basis of understanding the ARM11 framework, design the hardware schematic diagram in detail, and divide the whole circuit into image processing and display module. Storage module, peripheral circuit module, image acquisition and video codec module; (4) transplanting the LINUX operating system to the infrared circuit fault detection system after cutting and compiling, and making experiments to verify that the infrared circuit fault detection system can work normally. The main innovation of this paper is: Abandon the traditional PC platform, A fault detection device for infrared circuits based on embedded platform is proposed, which has great progress in reducing volume, reducing weight and improving portability. As far as I know, there is no mature paper and report on using ARM11 as the platform of infrared circuit fault detection system. The software and hardware tests show that the portable infrared circuit fault detection system designed in this paper can complete infrared image acquisition and circuit fault detection, and its performance is stable, and the desired goal is achieved.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TP368.1

【参考文献】