文档介绍：汽车行驶记录仪的研究设计
庞丹,任晓奎
(辽宁工程技术大学电子与信息工程学院,辽宁,125105)
摘要:汽车行驶记录仪式是可以实时采集并记录汽车行驶状态的智能电子仪器。本文主要
研究设计了一种基于嵌入式系统的汽车行驶记录仪,分析了系统的总体结构,介绍了微处理
模块,数据采集和数据存储以及数据通信等模块的硬件设计和系统软件流程。在标准汽车行
驶记录仪的基础上,引入了CAN总线技术,将系统设计成开放式,易嵌入式的结构,提高了
系统抗干扰性,增加了系统内的数据流量,保证了汽车行驶记录仪的实时性与可扩展性。
关键词:嵌入式系统;铁电存储器;传感器;通信接口
中图分类号:TP393 文献标识码:A
The Research and Design of Vehicle Traveling Data Recorder
PANG Dan,REN Xiao-kui
(Department of Electronic and Information Engineering, Liaoning Technical University, 125105, China)
Abstract: Vehicle Traveling Data Recorder is an intelligent electronic device, In this paper, we
mainly research and design a vehicle traveling data recorder based on embedded system, it
analyzes the overall structure and introduce the hardware design of the micro-processing module,
data acquisition, data storage, munication modules and so on, it also introduces the
system software processes. According to the standard vehicle traveling data recorder, we
mend the CAN bus technology, the system was designed as an open, easy-embedded
structure and we also improve the system immunity to interference, increase the quantity of data
flow, in order to ensure the real-time and scalability of the vehicle traveling data recorder.
Keywords: embedded system; FRAM; sensor; communication interface
汽车行驶记录仪,俗名汽车“黑匣子”,是对车辆行驶速度、时间、里程以及有关车辆
行驶的其他状态信息进行记录、存储并通过接口实现数据输出的数字式电子记录装置