汽车行驶状态纪录仪开发毕业设计.rar

汽车行驶状态纪录仪开发毕业设计

摘要

随着飞机飞行数据记录仪在空运管理方面的成功运用，汽车行驶状态记录仪已陆续在许多国家和地区大量使用。
该汽车行驶状态记录仪在发生交通事故时，能客观、全面地记录交通事故发生时车辆行驶的各种状态和司机的操作行为，为交通事故分析提供真实、有效、科学的有关车辆行驶的原始数据，并可提供事故分析功能，帮助有关部门快速确定事故原因，以保障事故双方(或几方)的合法权益；在正常营运中，又是管理部门加强监督和管理的强有力工具，帮助管理人员全面了解汽车的运行情况；在车辆发生故障时，它又可提供故障诊断功能，为维修人员判断故障提供可靠、准确的科学依据。汽车行驶状态记录仪的推广，将在遏止疲劳驾驶、车辆超速等严重交通违章、约束驾驶人员驾驶行为、预防道路交通事故、保障车辆行驶安全、提高营运管理水平等诸多方面发挥重要作用。
关键词：原始数据；诊断功能；科学依据

Abstract

Record an instrument along with the airplane flight data Be transporting management by air of successful usage，the car drives an appearance record an instrument already continuously in many nations and a great deal of usage in the region.
That car drives an appearance record an instrument while taking place traffic accident,The vehicle drove when ability was objective and recorded traffic accident occurrence completely of the operation behavior of various appearance and driver, for the traffic accident analysis provide reality, valid, science of the relevant vehicle drive of original data, can provide the trouble analysis the function also, help department concerned to make sure trouble reason quickly,to protect both incidents (or parties) of the legitimate rights and interests; In normal operation, of management departments to strengthen supervision and management of the powerful tools to help manage the staff have a comprehensive understanding of the operation of the vehicle; in the vehicle breaks down, it can provide fault diagnosis and maintenance staff to provide a reliable judgment fault, accurate scientific basis. Vehicle State Recorder promotion, will stop fatigue driving, speeding and other serious traffic violations, bound drivers driving behaviors, the prevention of road traffic accidents, traffic safety protection, improve operational management level and many other aspects play an important role.
Key words : raw data; Diagnostic function; Scientific basis

目录
0 前言…………………………………………………………………1
1 系统介绍……………………………………………………………2
1.1 功能和技术指标………………………………………………… 2
1.2 面板介绍和使用方法…………………………………………… 3
2 设计思路……………………………………………………………5
2.1 如何获取行驶状态信息………………………………………… 5
2.2 系统的总体结构………………………………………………… 5
3 硬件设计……………………………………………………………7
3.1 记录仪的供电…………………………………………………… 7
3.2 信号采集模块…………………………………………………… 8
3.3 单片机模块……………………………………………………… 10
3.4 可编程逻辑器件………………………………………………… 14
3.5 日历时钟芯片…………………………………………………… 19
3.6 液晶显示模块LCD………………………………………………..23
3.7 信息的存储……………………………………………………… 27
4 报警单元设计………………………………………………………30
4.1 超员报警………………………………………………………… 30
4.1.1 红外线光点开关………………………………………………..30
4.1.2 计数报警工作原理……………………………………………..34
4.2 酒精检测报警…………………………………………………… 35
5 软件设计……………………………………………………………37
5.1 软件流程………………………………………………………… 37
5.2 中断子程序……………………………………………………… 39
5.3 获取状态信息…………………………………………………… 41
5.4 时间信息的设置和获取………………………………………… 41
5.5 键盘输入………………………………………………………… 42
5.6 液晶显示………………………………………………………… 45
5.7 IC卡操作………………………………………………………… 50
6 技术经济分析………………………………………………………56
7 结论…………………………………………………………………58
致谢……………………………………………………………………60
附录A………………………………………………………………… 61
附录B………………………………………………………………… 68