基于PCI总线的ACM程控检测系统设计与实现

【作者】 余波；

【导师】 黄炜；

【作者基本信息】 电子科技大学 ， 信息与通信工程， 2007， 硕士

【摘要】 为了监督和控制某个生产过程或运动对象的状态,掌握其发展变化规律,就必须检测描述它们特性的各种参数。传统的检测技术及系统已经不能满足现代的工业生产过程参数的检测,因此引入自动测试、虚拟测试等先进技术,研制数字化、智能化、实时性好的现代检测系统具有重要意义。本文以实际的工程项目为背景,完成了一种新型的ACM检测系统的设计和实现。针对ACM检测需求,本文设计了基于PCI总线的、以计算机为控制中心的、实时的ACM程控检测系统方案。文中首先介绍了PCI总线,并详细讨论了基于PCI9052芯片的PCI总线接口实现;然后对系统软硬件设计的关键技术进行了研究和描述;最后进行了系统性能测试,给出了测试结果。系统硬件设计主要包括阀门控制模块、数据采集模块和信号调理模块设计。阀门控制模块的实现包括了PCI总线接口电路、FPGA接口电路、隔离电路、D/A转换器电路和V/I转换电路设计。在数据采集模块设计时,首先给出了采集卡总体设计方案,然后详细研究了模数转换模块、FIFO缓存模块和控制模块的设计。信号调理模块设计包括I/V变换电路、转速传感器信号调理电路和温度传感器信号调理电路。从传感器输出信号经过信号调理模块进行信号调理后,转换成数据采集卡可以接受的输入信号,以便数据采集卡进行后续处理。本文阐述了阀门控制卡驱动程序设计和上层应用程序设计。在驱动程序设计中,首先介绍了WDM驱动程序的特点,然后详细描述了利用DriverStudio开发工具开发阀门控制卡的WDM驱动程序的过程。在上层应用程序设计中,介绍了上层应用程序的功能、结构及其工作流程,描述了数据采集模块、数据分析处理模块和告警功能模块的设计,重点研究了振动信号的分析处理。为了衡量系统的性能优劣,本文进行了系统性能测试。系统性能测试包括所有的传感器信号采集通道测试和ACM实物状态综合测试,并给出了测试结果。本文设计的ACM程控检测系统经过调试后已经投入到波音737 ACM检测中,实践证明整个系统工作稳定,测量准确,操作简单方便,满足系统设计要求。更多还原

【Abstract】 For monitoring and controlling the status of a produce process or a move object, it needs to test all kind of their status. Traditional test technology and system already can’t satisfy the test of industry produce process status. Therefore, it is important to introduce advanced technology about automatic test and dummy test for developing digital and intelligentized real-time test system. Based on the actual engineering issue, a new kind of ACM test system is designed and implemented in this paper.Aiming at the ACM test requirement, a project has been designed to develop programmable ACM test system based on PCI bus and controlled by computer. In this paper, PCI bus specification has been presented and PCI bus interface implement based on PCI9052 chip has been discussed in detail. Then, hardware and software design have been researched and described. At last we carry out system performance test and list all of test results.System hardware is implemented by design valve control module and data acquisition module and signal regulation module. To implement valve control module, we need to design PCI bus interface circuit, FPGA circuit, insulation circuit, DAC circuit and V/I conversion circuit. In the topic of designing Data acquisition card, we firstly present the scheme of Data acquisition card, and then we implement the A/D conversion module, and FIFO buffer module and logic control module. To implement signal regulation module, we need to design I/V conversion circuit, rotate speed transducer and temperature transducers regulation circuit. The function of signal regulation module is to convert transducers signal to fit in with acquiring by PCI data acquisition card.In the topic of driver program design and application design, we present the traits of WDM and develop the valve control card’s driver program by DriverStudio, and then we research the developing and implement of application. In the process of application developing, we present the design of application’s function, structure, flow chart and emphasize on design data acquisition module, data analysis and management module. In data analysis and management module, we mainly analyze and deal with vibration signal.For analyzing system performance, we have measured the precision of data acquisition channels and performed ACM locale test by ACM test system. After testing, we list all of test results in the paper.At present, the ACM test system has accomplished and successfully used in Boeing 737 airplane ACM test. The actual test results prove that the ACM test system can stably run with high precision and convenient operation and its performance perfectly meets the anticipant requirement.更多还原