低功耗数据采集系统的分析-计算机应用专业论文.docxVIP

- - II - Abstract A timing data-acquisition system with low power consumption is presented in this paper.This battery-operated system can automatically collect analog signals of multiple-channel at a given time in bad environment conditions.During suspended period， main part of it haves no power supply, it cuts down most power dissipation.In this way，it prolongs time of batteries service，and system can keep working for a long time. it can be used widely in the systems of hydrology, transpo- rtation, construction and so on. During the hardware designing, the principle of chip chooses is presented and designed the reset circuitry in the power down condition,the power manage unit,the channels of analog singals,EEPROM,real-time clock and the circuitry of humidity data acquisition. During the software designing, designed the controlled program of time-shared power ,at the same time,designed the firmware of USB with the PDIUSBD12, and simply introduced the hardware circuit. In this paper, discussed means of the low power consumption instrument designing and put forward the conception of ultra-low power consumption instrument and its designing measure. Keywords: Low power consumption Data acquisition Time sharing-record Micro-controller Off-line measure system - - PAGE IV - 目 录 摘 要 I HYPERLINK \l _bookmark0 Abstract II HYPERLINK \l _bookmark1 1 绪言 HYPERLINK \l _bookmark2 1.1 引言 (1) HYPERLINK \l _bookmark3 1.2 数据采集技术概述 (1) HYPERLINK \l _bookmark4 1.3 数据采集器的构成及要求 (2) HYPERLINK \l _bookmark5 1.4 课题的提出及其国内外现状的分析 (3) HYPERLINK \l _bookmark6 2 低功耗仪表系统的设计 HYPERLINK \l _bookmark7 2.1 低功耗单片微机系统的特点 (6) HYPERLINK \l _bookmark8 2.2 低功耗单片微机系统的设计 (7) HYPERLINK \l _bookmark9 2.3 微处理器的低功耗设计 (9) HYPERLINK \l _bookmark10 2.4 低功耗仪表的设计 (11) HYPERLINK \l _bookmark11 3 仪器的总体功能规划 HYPERLINK \l _bookmark12 3.1 仪器的规划及功能 (14) HYPERLINK \l _bookmark13 3.2 仪器的软件规划 (15) HYPERLINK \l _bookmark14 3.3 仪器的技术指标 (15) HYPERLINK \l _bookmark15 4 数据采集系统的硬件设计与调试 HYPE