數(shù)據(jù)采集系統(tǒng)是集計(jì)算機(jī)、通信及電子技術(shù)、工業(yè)控制為一體的綜合探測系統(tǒng)。本文
介紹了基于嵌入式Linux 的數(shù)據(jù)采集系統(tǒng)的硬件結(jié)構(gòu)和軟件設(shè)計(jì)。為提高系統(tǒng)的實(shí)時(shí)響應(yīng)性能和多任務(wù)處理能力，在硬件上采用ARM9 微處理器技術(shù)，同時(shí)移植Linux操作系統(tǒng)，使系統(tǒng)的可靠性和可擴(kuò)展性得以提高。設(shè)計(jì)中充分利用了嵌入式Linux 的特點(diǎn)。系統(tǒng)軟件模塊有數(shù)據(jù)采集模塊、數(shù)據(jù)處理模塊、數(shù)據(jù)通信模塊和數(shù)據(jù)診斷模塊。將嵌入式Linux 操作系統(tǒng)引入數(shù)據(jù)采集系統(tǒng)的設(shè)計(jì)中,加速了系統(tǒng)的開發(fā),方便了將來的功能擴(kuò)展,提高了觀測數(shù)據(jù)的及時(shí)性和準(zhǔn)確性,實(shí)現(xiàn)了觀測的自動(dòng)化。
關(guān)鍵字: 嵌入式Linux ,數(shù)據(jù)采集系統(tǒng),設(shè)備驅(qū)動(dòng)
Abstract: Data acquisition system is a comprehensive monitoring system based on computer,
communication , electronic technology , and industrial control.In this paper, based on embedded Linux data acquisition system hardware and software design. To improve system performance and respond to real-time multi-tasking capabilities, the hardware used on the ARM9 microprocessor technology, and transplant the Linux operating system, the system's reliability and scalability to improve. The characteristic of embedded Linux has been fully utilized in the design. There are five modules of the system: data acquisition module, data processing module, data communication module, and data diagnose module. Embedded Linux operating system will be the introduction of data acquisition system design and accelerate the development of the system to facilitate the future expansion of the functions and improve the observation data timeliness and accuracy, and the observation of automation.
Keywords: embedded Linux, data acquisition system, device driver