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摘要近年来,随着社会的发展以及科学技术水平的不断提高，无线通信技术也在不断的更新，目前已经被世界各国的机构所广泛关注,而无线局域网WLAN更是短距离宽带无线通信技术的应用热点｡无线局域网是计算机网络与无线通信技术相结合的产物,可提供传统有线局域网的功能｡而随着该技术不断的发展与成熟，它所应用到的领域也变得越来越广泛，本课题的设计思想是基于WiFi技术、利用单片机，光耦，开关稳压电源，电平转换元件等器件来设计一个作为高端汽车中心控制系统的车载智能控制器, 可让用户通过自己随身携带的带安卓系统或苹果OS系统的手机、PAD等任一移动终端实现对车载设备的远程控制，如车内的空调，门窗，座椅等。为用户带来与以往不同的无线通信体验。本课题完成车载智能控制器的硬件结构及电路部分23007
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关键词:车载控制器 WiFi 单片机
毕业设计说明书（毕业论文）外文摘要
Title The hardware design of intelligent controller based on WiFi
Abstract
In recent years, with the development of society and the improvement of science and technology, wireless communication technology updates constantly. Governments around the world have paid much attention to it. The hot spot for the application of wireless communication technology is WLAN( Wireless Local Area Networks). WLAN is a combination of computer network and wireless communication technology. And it can serve as traditional wired LANs. As this technology becoming increasingly mature, fields which it can be applied to expand as well.
Basing on the technology of WiFi, this paper designs an intelligence controllor as the high-end car central control system, which utilize devices including SCM( Single Chip Microcomputer), optical coupler, switching power supply, and level conversion element. Using carry-on mobile phones or PAD with Android or OS system, it is possible for subscribers to control vehicle equipment remotely such as the air-conditioned, doors, windows and seats. This will bring a distinctive wireless communication experience to them. This paper proposes the hardware structure and designs the circuit part of the intelligence vehicle controllor.
Keywords intelligence vehicle controllor WiFi SCM
目次
绪论 2
1.1课题背景与意义 2
1.2便携终端的发展趋势 2
1.3车载智能控制器应用需求分析 3
1.4课题所做工作及论文的安排 3
2.车载智能控制器组网技术研究与分析 5
2.1WiFi简介以及WiFi组网技术的研究 5
2.2 WiFi相对于其他组网方式的优势 6
2.3 小结 7
3.总体方案设计 8
3.1 基本方案 8
3.2 主控芯片的选择 8
3.3开关稳压电路的选择 9
3.4 光耦合器 10
3.5 电平转换芯片 10
3.6 本章小结 11
4. 基于WiFi的车载智能控制器硬件设计 11
4.1 STM32F103VET6单片机简介 11
4.1.1 STM32F103VET6简介 11
4.1.2 STM32F103VET6内部介绍 12
4.2 电平转换芯片Max3232 14
4.3 光耦芯片TLP281_4 15
工作原理 16
基本工作特性（光敏三极管） 16