基于ARM的航空发动机数据采集系统设计
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摘要
为满足航空发动机外场检测要求,针对传统数据采集系统的缺陷,介绍了一种基于ARM的航空发动机数据采集系统设计原理和实现方法。系统以微处理器S3C2440为核心,设计了数据采集硬件电路,并结合移植的嵌入式Linux的操作系统,实现了ADC、SD卡及相关驱动。系统既可以满足发动机试车时离线模式数据采集要求,也可通过网络直接上传给上位机,为相关人员进行发动机状态监控与数据分析提供重要依据,具有操作方便、采集精度高和测量结果准确的特点。
In order to meet the requirements of aero-engine external field detection, and overcome the defects of traditional data acquisition system, the design principle and realization method of aero-engine data acquisition system based on ARM are introduced. The microprocessor S3 C2440 is taken as a core, the data acquisition instrument circuits were designed, ADC, SD card and related drivers were implemented with the embedded Linux operating system. The designed system can meet the requirements of off-line mode data acquisition and storage during test running of aero-engine. Moreover, the collected data can be uploaded directly to the PC via the network. Therefore, this system can provide theoretical guidance for all concerned to deal with aero-engine condition monitoring and data analysis, which has the characteristics of simple operation, high accuracy and accurate measurement results.
In order to meet the requirements of aero-engine external field detection, and overcome the defects of traditional data acquisition system, the design principle and realization method of aero-engine data acquisition system based on ARM are introduced. The microprocessor S3 C2440 is taken as a core, the data acquisition instrument circuits were designed, ADC, SD card and related drivers were implemented with the embedded Linux operating system. The designed system can meet the requirements of off-line mode data acquisition and storage during test running of aero-engine. Moreover, the collected data can be uploaded directly to the PC via the network. Therefore, this system can provide theoretical guidance for all concerned to deal with aero-engine condition monitoring and data analysis, which has the characteristics of simple operation, high accuracy and accurate measurement results.
引文
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[2]宋建华,王正,朱兴动,等.航空发动机综合调节器检测系统的设计[J].测控技术,2014,33(12):50-54.
[3]邓乐武,王智,周正宇,等.航空发动机数字式电子调节器在线检测系统开发[J].测控技术,2015,34:164-166.
[4]王晶,黄玲娟.基于多线程的航空发动机数据采集系统软件设计[J].测控技术,2017,36(5):119-123.
[5]李运华,张哲,车鑫.发动机数据监视和存储策略[J].测控技术,2016,35(7):56-63.
[6]韩兵,贾会琰,陈宇.美军旋翼飞机预测性维修中的状态监测和数据分析技术[J].航空维修与工程,2016(4):26-27.
[7]严乐,司斌,张从霞,等.美军自动测试系统的现代化发展综述[J].航空兵器,2016(2):71-76.
[8]北京长城航空测控技术研究所.航空测试技术[M].北京:航空工业出版社,2013:1-13.
[9]胡祖宝,董国通.基于S3C2440的嵌入式LINUX内核移植及字符设备驱动开发[J].工业控制计算机,2015,28(12):14-18.
[10]范蟠果,邢保毫,米晓亮,等.基于嵌入式S3C2440系统Bootloader设计与实现[J].计算机测量与控制,2016,24(9):12-16.