基于labview的出租车计价系统设计【必威体育精装版】.docx

基于Labview的出租车计价系统设计 设计说明书 目 录  TOC \o 1-3 \h \z \u  HYPERLINK \l _Toc405924670 1 引言  PAGEREF _Toc405924670 \h 1  HYPERLINK \l _Toc405924671 1.1项目概述  PAGEREF _Toc405924671 \h 1  HYPERLINK \l _Toc405924672 1.2项目目的  PAGEREF _Toc405924672 \h 1  HYPERLINK \l _Toc405924673 1.3设计任务  PAGEREF _Toc405924673 \h 1  HYPERLINK \l _Toc405924674 1.3.1 实现计费功能  PAGEREF _Toc405924674 \h 1  HYPERLINK \l _Toc405924675 1.3.2 实现显示功能  PAGEREF _Toc405924675 \h 1  HYPERLINK \l _Toc405924676 1.4 研究思路和方法  PAGEREF _Toc405924676 \h 1  HYPERLINK \l _Toc405924677 2系统总体方案设计  PAGEREF _Toc405924677 \h 2  HYPERLINK \l _Toc405924678 2.1出租车计价原理  PAGEREF _Toc405924678 \h 2  HYPERLINK \l _Toc405924679 2.2系统原理框图  PAGEREF _Toc405924679 \h 2  HYPERLINK \l _Toc405924680 3系统硬件设计  PAGEREF _Toc405924680 \h 3  HYPERLINK \l _Toc405924681 3.1 系统原理框图  PAGEREF _Toc405924681 \h 3  HYPERLINK \l _Toc405924682 3.2各模块电路功能及原理分析  PAGEREF _Toc405924682 \h 3  HYPERLINK \l _Toc405924683 3.2.1电源模块原理分析  PAGEREF _Toc405924683 \h 3  HYPERLINK \l _Toc405924684 3.3硬件电气原理图  PAGEREF _Toc405924684 \h 4  HYPERLINK \l _Toc405924685 3.4硬件程序  PAGEREF _Toc405924685 \h 4  HYPERLINK \l _Toc405924686 4系统软件设计  PAGEREF _Toc405924686 \h 4  HYPERLINK \l _Toc405924687 4.1Labview简介  PAGEREF _Toc405924687 \h 4  HYPERLINK \l _Toc405924688 4.2自定义控件  PAGEREF _Toc405924688 \h 5  HYPERLINK \l _Toc405924689 4.3界面设计  PAGEREF _Toc405924689 \h 6  HYPERLINK \l _Toc405924690 4.4VISA数据接收  PAGEREF _Toc405924690 \h 6  HYPERLINK \l _Toc405924691 4.4.1VISA简介  PAGEREF _Toc405924691 \h 6  HYPERLINK \l _Toc405924692 4.4.2VISA接收流程  PAGEREF _Toc405924692 \h 7  HYPERLINK \l _Toc405924693 4.5出租车计价功能实现  PAGEREF _Toc405924693 \h 7  HYPERLINK \l _Toc405924694 4.5.1串口数据提取  PAGEREF _Toc405924694 \h 7  HYPERLINK \l _Toc405924695 4.5.2瞬时速度的计算  PAGEREF _Toc405924695 \h 8  HYPERLINK \l _Toc405924696 4.5.3出租车计价计算  PAGEREF _T