labview设计报告资料.docVIP

【摘要】 时间是人类生活必不可少的重要元素，从古代的沙漏、十二天干地支，到后来的机械钟表以及当今的石英钟，都充分显现出了时间的重要性。随着社会的发展，人们对时间计量的精度要求越来越高，应用越来越广，功能要求越来越多。普通的机械钟表与半机械钟表对于当代人忙碌的生活显然早已不太适应，随着科技的进步，电子时钟应运而生，它不仅给人们生产生活带来了极大的方便，而且大大地扩展了时钟原先的功能。本课题研究的主要目的就是设计一个基于Labview的时钟系统，以格式化日期/时间字符串Labview；时间；电子时钟Abstract Time is an important element of human life, from the ancient hourglass, 12 days dry terrestrial branch, to later mechanical clocks and todays quartz clock, are fully shown the importance of time. With the development of society, people time measurement accuracy is higher and higher, used more and more widely, the function requirement more and more. Common mechanical clocks and half mechanical clocks for contemporary people busy life obviously had not too orientation, with the progress of science and technology, electronic clock arises at the historic moment, it not only give people production life brought great convenience, but also greatly expanded the clock of the original function. The main purpose of this research is to design a based on Labview clock system, through the acquisition of computer system time, and separate to digital, in through the Boolean display show. It with light, acquisition date/time (in seconds), formatting date/time string, clipping array, a local variable, and the true constant and false constants, etc., through the connection of basic made a digital tube the electronic clock. Key words: Virtual instrument; Labview; Time. Electronic clock 目录 1 绪论 1 1.1 课题的背景 1 1.2课题的意义 1 1.3国内外研究现状 2 1.4 论文构成以及章节安排 2 2 虚拟仪器 3 2.1 虚拟仪器的概述 3 2.1.1虚拟仪器的特点及优势 3 2.1.2虚拟仪器与传统仪器的比较 4 2.1.3 虚拟仪器系统的组成 4 2.1.4虚拟仪器的软件结构 5 2.2 虚拟仪器的开发软件 6 2.2.1 虚拟仪器的开发语言 6 2.2.2图形化虚拟仪器开发平台——LABVIEW 6 2.2.3基于LABVIEW平台的虚拟仪器程序设计 7 2.3 虚拟仪器的发展现状 8 2.3.1国外虚拟仪器的现状 8 2.3.2国内虚拟仪器的现状 9 2.4虚拟仪器的发展方向 9 3 LabVIEW软件及其基本设计过程和相关的原理 10 3.1 LabVIEW简介 10 3.2LabVIEW软件设计基本原理 10 3.2.1前面板 11 3.2.2程序框图 11 3.2.3图标/连接器 12 3．3 LabVIEW的操作模块 12 3.3.1工具模板 12 3.3.2控制模板（Control Palette） 13 3.3.3 功能模板(Functions Palette) 15 4总体设计 17 4.1 时钟显示的结构 17 4.2 设计总思路