汽车压力传感器校验台设计

论文编号:JD1153  论文字数:15784,页数:52

摘  要

 随着电子技术的迅速发展，特别是电子技术在汽车方面的应用，给汽车向智能化发展带来了根本性的改变。由于电子技术在汽车方面的广泛应用,对汽车测量技术也向智能化发展。
 本文首先描述系统硬件工作原理，并附以系统结构框图加以说明，着重介绍了本系统所应用的各硬件接口技术和各个接口模块的功能及工作过程；其次，详细阐述了程序的各个模块和实现过程。本设计以数字集成电路技术为基础，单片机技术为核心。本文编写的主导思想是软硬件相结合，以硬件为基础，来进行各功能模块的编写。本系统以单片机的KEIL C51语言进行软件设计，增加了程序的可读性和可移植性,为了便于扩展和更改，软件的设计采用模块化结构，使程序设计的逻辑关系更加简洁明了。
 其中本文用PROETEUS软件进行模拟仿真，使硬件仿真变的简单化。
    本系统实现了可编程电阻箱,即在一定范围内可得到任意电阻。可以说是标准电阻发生器。
 
 关键词　  单片机；网络电阻；PROTEUS仿真；可编程电阻。

Abstract
 As electronic technology developing rapidly, especially in the automobile electronic technology, the applications to the development of intelligent vehicle bring fundamental change. As electronic technology in a wide range of vehicle applications, the measurement of vehicle technology develop to intelligence.   
 This paper first describes the system hardware working principles, along with the system architecture block diagram illustration, highlights of this system by the application of technology and hardware interface module interface all of the functions and work processes; Secondly, a detailed explanation of procedures for the various modules and the realization process. The digital IC design technology-based, single-chip computer technology at the core. This paper prepared by the dominant thinking of the combination of hardware and software to hardware-based, for the preparation of functional modules. The system MCU KEIL C51 language software design, the procedures increase the readability and portability. In order to facilitate the expansion and changes to the software design modular structure, so that the logic of the design process even more succinct and clear.
 In this paper, which PROETEUS software simulation, simulation hardware change the simplistic.
 The system achieved a programmable resistor boxes, in a certain range that is available within any resistance. It can be said is standard resistance generator.
 
Key words　 SCM;       Network resistance;      Proteus simulation;
 Programmable resistor.
 
 

目  录

第一章 绪论 1
1.1 课题开发背景及意义 1
1.2可编程电阻箱的介绍 2
第二章 硬件设计 3
2.1 硬件设计框图 3
2.2 硬件原理设计 3
2.2.1 键盘工作原理 5
2.2.2 继电器网络与电阻网路 6
2.3芯片介绍 8
2.3.1 MSC-51单片机应用 8
2.3.2 单片机AT89C51芯片 9
2.3.3驱动芯片ULN2003A 14
2.3.4 继电器 16
2.3.5 液晶显示 17
第三章 系统软件设计 19
3.1主程序流程图 19
3.2 键盘扫描程序流程 20
第四章 PROTEUS模拟调试 23
4.1 调试工具介绍 23
4.2 调试过程 24
4.2.1.键盘扫描及液晶显示调试 25
4.2.2.继电器调试 26
4.2.3. 继电器驱动调试 27
4.2.4. 扩展8255的调试 27
第五章 硬件调试 28
5.1  硬件静态的调试 28
5.2 联机仿真调试 28
5.3 继电器的调试 29
5.4 ULN2003A驱动的调试 30
5.5 综合调试 30
结束语 32
致谢 33
参考文献 34
附录 35

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