嵌入式Linux在咪表无线通信中的应用技术研究
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摘要
针对中国现在越来越明显的停车难、道路拥挤等问题,提出了一套智能泊车系统中的泊车咪表解决方案。智能泊车系统由泊车信息终端、泊车手持机、咪表和信息中心组成。
咪表是智能泊车系统的通信枢纽,负责智能泊车系统各个模块间的数据转发、车位状态显示和停车计费。咪表系统采用嵌入式系统设计,处理器采用基于ARM9体系架构的三星S3C2440,操作系统采用了开放源代码的嵌入式Linux系统。
咪表与泊车手持机采用短距离RF无线方式通信,与信息中心采用GPRS无线方式或者以太网方式进行通信。通过对智能泊车系统的构成、工作流程、咪表系统结构的理解,完成了基于嵌入式Linux系统的咪表软件平台搭建,包括交叉编译工具链的建立、U-boot的移植、Linux内核移植、文件系统建立、嵌入式数据库sqlite3的移植和GDB远程调试环境搭建。完成了咪表系统与手持机的短距离RF无线通信、咪表系统与信息中心的GPRS无线通信的设计,解决了短距离RF无线通信中的一主机多从机、GPRS无线通信中的安全性和可靠性问题,进行了嵌入式web服务器BOA的移植,编写了咪表系统的QT GUI界面和分别基于GPRS和以太网通信的信息中心通信软件,咪表系统的各个部分的设计合理,软件功能齐备,达到了设计要求。
China is now increasingly clear view of the difficult parking, road congestion and other problems. Aiming at these phenomenon, I put forward a parking meter sytem solution that is a part of a smart parking system .Smart parking system is made up by parking information terminals, parking handsets, parking meters and information center.
Parking meter system is the communications hinge of the whole smart parking system, responsible for transmiting data between the various modules and parking status shows and billing. Paring meter system is designed as a embedded system. Its processor is Samsung S3C2440 based on ARM9 processor architecture and its operating system is the open-source embedded Linux system.
Parking meter system using stone's throw RF wireless communications with handset, and using GPRS wireless or Ethernet communications with information center. Based on the understanding of the smart parking system, workflow, the parking meter system structure, I build the software platform based on embedded Linux operating system, including cross-compiler tool chain establishment, U-boot transplantation, Linux kernel transplantation, file systems establishment ,embedded database sqlite3 transplant and building of GDB-Server remote debuging environment. Completed RF wireless communications design between parking meter system and the handset, and GPRS wireless communications design between parking meter system and information center. solved how to communicate between one host machine and more slave machines in the RF wireless communications and how to ensure safety and reliability in the GPRS wireless communications. Transplant the embedded web server BOA. Designed QT GUI interface and information center communications software based on GPRS and Ethernet communications. The parking meter system is a rational design and its software capabilities are available to the design requirements.
咪表是智能泊车系统的通信枢纽,负责智能泊车系统各个模块间的数据转发、车位状态显示和停车计费。咪表系统采用嵌入式系统设计,处理器采用基于ARM9体系架构的三星S3C2440,操作系统采用了开放源代码的嵌入式Linux系统。
咪表与泊车手持机采用短距离RF无线方式通信,与信息中心采用GPRS无线方式或者以太网方式进行通信。通过对智能泊车系统的构成、工作流程、咪表系统结构的理解,完成了基于嵌入式Linux系统的咪表软件平台搭建,包括交叉编译工具链的建立、U-boot的移植、Linux内核移植、文件系统建立、嵌入式数据库sqlite3的移植和GDB远程调试环境搭建。完成了咪表系统与手持机的短距离RF无线通信、咪表系统与信息中心的GPRS无线通信的设计,解决了短距离RF无线通信中的一主机多从机、GPRS无线通信中的安全性和可靠性问题,进行了嵌入式web服务器BOA的移植,编写了咪表系统的QT GUI界面和分别基于GPRS和以太网通信的信息中心通信软件,咪表系统的各个部分的设计合理,软件功能齐备,达到了设计要求。
China is now increasingly clear view of the difficult parking, road congestion and other problems. Aiming at these phenomenon, I put forward a parking meter sytem solution that is a part of a smart parking system .Smart parking system is made up by parking information terminals, parking handsets, parking meters and information center.
Parking meter system is the communications hinge of the whole smart parking system, responsible for transmiting data between the various modules and parking status shows and billing. Paring meter system is designed as a embedded system. Its processor is Samsung S3C2440 based on ARM9 processor architecture and its operating system is the open-source embedded Linux system.
Parking meter system using stone's throw RF wireless communications with handset, and using GPRS wireless or Ethernet communications with information center. Based on the understanding of the smart parking system, workflow, the parking meter system structure, I build the software platform based on embedded Linux operating system, including cross-compiler tool chain establishment, U-boot transplantation, Linux kernel transplantation, file systems establishment ,embedded database sqlite3 transplant and building of GDB-Server remote debuging environment. Completed RF wireless communications design between parking meter system and the handset, and GPRS wireless communications design between parking meter system and information center. solved how to communicate between one host machine and more slave machines in the RF wireless communications and how to ensure safety and reliability in the GPRS wireless communications. Transplant the embedded web server BOA. Designed QT GUI interface and information center communications software based on GPRS and Ethernet communications. The parking meter system is a rational design and its software capabilities are available to the design requirements.
引文
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[2]Chan,Sewell.New York Retires Last Mechanical Parking Meter.The New York Times,2006
[3]SAMSUNG.S3C2440A datasheet.Korea.SAMSUNG Electronics,2004
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[9]L.Li,F.Y.Wang.Parking Guidance System for Front WheelSteering Vehicles Using Trajectory Generation.IEEE,2003:1770-1775
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[14]Michael OwensEmbedded an SQL Database with sqlite.Linux Journal
[15]Micbael Barr.C/C++嵌入式系统编程.中国电力出版社,2001
[16]王芳.Arm平台上的电梯多媒体与监控系统的研究与实现.南京理工大学硕士论文,2007.7
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[31]冯保才.基于ARM的电力负荷管理终端设计与实现.西安科技大学硕士论文,2007.7
[32]李永忠.通用并行CRC计算原理及其硬件实现方法.西北民族学院学报,2002:33-37
[33]黄光奇.CGI编程指南.电子工业出版社,1999
[34]W.Richard Stevens.UNIX网络编程.第2版.清华大学出版社,2005
[35]Bovet,Cesati.深入理解Linux内核.第2版.中国电力出版社,2005
[36]胡允涛边占国.PDA在咪表系统中的运用研究与实现.太原师范学院学报(自然科学版),2005:31-34
[37]倪伟.路边停车收费系统.西北工业大学硕士学位论文,2004
[38]邱岩,秦升平,孙晓钟.基于手机支付的停车场智能收费系统设计.计算机工程与设计,2004:886-888
[39]李文仲、段朝玉.短距离无线数据通信入门与实战北京航空航天大学出版社.第一版,2006
[40]王磊,王仲东.基于嵌入式系统和GPRS技术的实时远程抄表监控系统.自动测量与控制,2006:73-79
[41]刘晓度.基于嵌入式LINUX技术和GPRS网络的数据传输.科技创业月刊,2007:198-199
[42]汤志伟 陆亨立.基于嵌入式Linux的汽车信息服务系统.汽车电子,2006:209-211
[43]张学习.基于嵌入式Linux的GPRS自动抄表装置.广东工业大学学报,2005:83-87
[44]缪爱国,刁扣锁,胡晨.基于嵌入式Linux和GPRS的无线数据通信的设计与实现.电子器件,2004:715-718
[45]张成伟,杜旭,杨宗鼠.基于MiniGUI和嵌入式Linux的GSM/GPRS无线通信模块.计算机工程,2004:173-175
[46]赵庆丽,魏东兴,郭永山.基于嵌入式LINUX的GPRS数据传输系统.信息技术,2004:1-4
[47]丁飞,张西良,张世庆.几种内嵌8051无线SoC芯片的应用比较与选择.电子元器件应用,2006:20-23
[48]William Stalings.无线通信与网络.第2版.清华大学出版社,2006
[49]倪继利.Qt及Linux操作系统窗口设计.北京.电子工业出版社,2006
[50]张天睛,崔洪波.关于城市停车库智能诱导系统的研究.公安大学学报,2003:65-69
[51]迅通科技.nRF24E1手册,2004
[52]深圳市宏电技术开发有限公司.H7710 DTU手册,2007
[53]唐天勇.车载CAN、WLAN及GSM无线网桥的设计与研究.东南大学硕士学位论文,2004
[2]Chan,Sewell.New York Retires Last Mechanical Parking Meter.The New York Times,2006
[3]SAMSUNG.S3C2440A datasheet.Korea.SAMSUNG Electronics,2004
[4]David Whccicr,Rogcr Nccdham.TEA,a Tiny Encryption Algorithm.England:Computer Laboratory,Cambridge University,1994
[5]Willie D.Jones 1.Parking 2.0 Meters go high tech.IEEE Spectrum.2006,20
[6]Vanessa W.S.Tang,Yuan Zheng,Jiannong Cao.An Intelligent Car Park Management System based on Wireless Sensor Networks and Applications.International Symposium on Pervasive Computing,2006:65-67
[7]Silvia Battigelli Alberto Farronato Carlos Mazariegos.Should Motorola Embrace 100%The Linux operatrating system for smartphone.MIT Open Course,2005
[8]Insop Song,Keith Gowan,Jason Nery,Henrick Han,Tony Sheng,Howard Li,Fakherddine Karray.Intelligent parking system design using FPGA.IEEE.2006.
[9]L.Li,F.Y.Wang.Parking Guidance System for Front WheelSteering Vehicles Using Trajectory Generation.IEEE,2003:1770-1775
[10]J.Barton,J.Buckley,B.O'Flynn,J.P.Benson,T.O'Donovan,U.Roedig,C.Sreenan.The D-Systems Project-Wireless Sensor Networks for Car-Park Management.IEEE,2007:170-173
[11]Susan A.Shaheen,Ph.D.Caroline J.Rodier,Ph.D.Amanda M.Eaken.Applyingintegrated itsteechnologies toparkingmanagement systems:a transitbased case study in the san franciscobay,IEEE,2004
[12]Akihito Sakai,Takumi Sugimoto,Kozi Mizuno,Takeshi Okuda.Pariking Guidance and Information Systems.IEEE,1995:478-486
[13]J.H.Park,I.H.Jang and N.C.Kim.Skew correction of business card images acquired in PDA.IEEE,2005
[14]Michael OwensEmbedded an SQL Database with sqlite.Linux Journal
[15]Micbael Barr.C/C++嵌入式系统编程.中国电力出版社,2001
[16]王芳.Arm平台上的电梯多媒体与监控系统的研究与实现.南京理工大学硕士论文,2007.7
[17]贾智平,张瑞华.嵌入式系统原理与接口技术.第1版.清华大学出版社,2005
[18]邱岩,秦升平,孙晓钟.基于手机支付的停车场智能收费系统设计.计算机工程与设计,2005:886-888
[19]摩托罗拉工程学院.GPRS网络技术.电子工业出版社,2005
[20]邓爱华.美国:ITS先行者.维普资讯
[21]邓爱华.欧洲:高度发达的智能交通网.维普资讯
[22]软件世界.智能交通系统.软件世界,2007
[23]孙琼.嵌入式LINUX应用开发详解.第1版.北京.人们邮电出版社,2006
[24]YANGHMOUR.构建嵌入式Linux系统.中国电力出版社,2007
[25]魏永明,耿岳,钟书毅.LINUX设备驱动程序.中国电力出版社,2006
[26]Kurt wall.GNU/Linux编程指南.清华大学出版社,2000
[27]胡健栋.现代无线通信技术.机械工业出版社
[28]吴钊桐张莹刘新朝.基于nRF24E1的嵌入式2.4GHz无线接入系统.单片机与嵌入式系统应用,2005:39-42
[29]W.Richard Stevens.UNIX环境高级编程.第1版.人民邮电出版社,2005
[30]胡向东,魏琴芳.应用密码学.电子工业出版社,2006
[31]冯保才.基于ARM的电力负荷管理终端设计与实现.西安科技大学硕士论文,2007.7
[32]李永忠.通用并行CRC计算原理及其硬件实现方法.西北民族学院学报,2002:33-37
[33]黄光奇.CGI编程指南.电子工业出版社,1999
[34]W.Richard Stevens.UNIX网络编程.第2版.清华大学出版社,2005
[35]Bovet,Cesati.深入理解Linux内核.第2版.中国电力出版社,2005
[36]胡允涛边占国.PDA在咪表系统中的运用研究与实现.太原师范学院学报(自然科学版),2005:31-34
[37]倪伟.路边停车收费系统.西北工业大学硕士学位论文,2004
[38]邱岩,秦升平,孙晓钟.基于手机支付的停车场智能收费系统设计.计算机工程与设计,2004:886-888
[39]李文仲、段朝玉.短距离无线数据通信入门与实战北京航空航天大学出版社.第一版,2006
[40]王磊,王仲东.基于嵌入式系统和GPRS技术的实时远程抄表监控系统.自动测量与控制,2006:73-79
[41]刘晓度.基于嵌入式LINUX技术和GPRS网络的数据传输.科技创业月刊,2007:198-199
[42]汤志伟 陆亨立.基于嵌入式Linux的汽车信息服务系统.汽车电子,2006:209-211
[43]张学习.基于嵌入式Linux的GPRS自动抄表装置.广东工业大学学报,2005:83-87
[44]缪爱国,刁扣锁,胡晨.基于嵌入式Linux和GPRS的无线数据通信的设计与实现.电子器件,2004:715-718
[45]张成伟,杜旭,杨宗鼠.基于MiniGUI和嵌入式Linux的GSM/GPRS无线通信模块.计算机工程,2004:173-175
[46]赵庆丽,魏东兴,郭永山.基于嵌入式LINUX的GPRS数据传输系统.信息技术,2004:1-4
[47]丁飞,张西良,张世庆.几种内嵌8051无线SoC芯片的应用比较与选择.电子元器件应用,2006:20-23
[48]William Stalings.无线通信与网络.第2版.清华大学出版社,2006
[49]倪继利.Qt及Linux操作系统窗口设计.北京.电子工业出版社,2006
[50]张天睛,崔洪波.关于城市停车库智能诱导系统的研究.公安大学学报,2003:65-69
[51]迅通科技.nRF24E1手册,2004
[52]深圳市宏电技术开发有限公司.H7710 DTU手册,2007
[53]唐天勇.车载CAN、WLAN及GSM无线网桥的设计与研究.东南大学硕士学位论文,2004