装配图A0
摘要
随着汽车工业的急速发展，智能化，环保化概念的提出，作为汽车“后眼”的外后视镜从外观及功能上也不断更新换代。本文跟随时代潮流，为解决当前测试仪在实际应用中存在的不足问题，设计一款性价比较高的机车后视镜测试仪。其下位机控制部分选用AT89C52单片机，该款单片机具有操作简单，使用普遍，价格低廉，性能可靠，并能完成复杂控制系统等优点。在积分球设计方面与之前相比在性能方面也有了相应的优化。
本次设计的机车后视镜反射率测试仪主要由积分球、箱体、前门、探测器、校准板、开关、电源插座、显示器等部件组成；采用solidworks进行以上零部件件三维建模，并完成装配；此外，对于主要零部件以及装配体，利用autocad进行二维设计。
关键词：反射率；测试仪；AT89C52单片机；三维建模
Abstract
With the rapid development of automobile industry, the concept of intelligence and environmental protection is put forward, and the external rear-view mirror, as the rear-eye of automobile, is constantly updated in appearance and function. This article follows the trend of the times, in order to solve the shortcomings of the current tester in practical application, design a high cost-effective locomotive rearview mirror tester. AT89C52 single chip microcomputer is used in the control part of the lower computer,which has the advantages of simple operation, universal use, low price, reliable performance, and can complete complex control system. In terms of integral ball design comparedwith the previous performance has also been optimized accordingly.
This design of locomotive rearview mirror reflectivity tester is mainly composed of integral ball, box, front door, detector, calibration board, switch, power outlet, display and other components; using solidworks to do the above parts three-dimensional modeling, and complete assembly; in addition, for the main parts and assembly, the use of autocad for two-dimensional design.
Keywords: reflectance; tester; AT89C52 MCU ;3D modeling
目录
摘要I
Abstract II
第1章绪论1
1.1引言1
1.2 1
1.3国内外后视镜检测仪的现状1
1.3.1国内外后视镜检测仪的发展1
1.3.2后视镜检测仪的分类3
1.4课题的研究内容4
第2章技术指标要求及测量定理5
2.1设计的技术指标与要求5
2.1.1后视镜的分类5
2.1.2测试仪的系统要求6
2.2检测方法7
2.3测量原理8
第3章总体结构设计10
3.1光学部件及结构设计10
3.1.1光源的选取10
3.1.2平行光管10
3.1.3积分球11
3.2后视镜位移传动装置机械结构设计12
3.2.1丝杠滑台电机选取及计算13
3.2.2丝杠选取及计算13
3.2.3轴承选取15
3.2.4联轴器选取15
3.2.5待测后视镜安装16
第4章电控部分设计17
4.1单片机选择及功能介绍17
4.1.1单片机方案选择17
4.1.2单片机介绍18
4.2光电接收电路19
4.2.1前置放大及滤波电路19
4.2.2光电接收器电路19
4.2.3 A/D转换部分20
4.3光栅尺采集电路20
4.4光源恒流控制21
4.4.1数模转换DAC0832 21
4.4.2恒流驱动系统电路22
4.5电动机正反转控制电路22
4.6音乐报警线路的控制23
4.7串口通信控制23
第5章人机交互系统设计25
5.1人机交互界面简介25
5.2人机交互界面设计25
5.3功能介绍27
第6章工程定额概算30
6.1反射率测试仪制作成本预算30
6.2机动车后视镜反射率测试仪制作过程管理31
结论33
参考文献34
致谢36
流程图A0
1字数
2摘要
3设计所包含文件
4目录
