双电源供电可变交通信息显示系统的设计与研究
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摘要
本文针对现有交通信息显示终端设备存在显示内容单一、不能正确合理引导交通流等问题,研究并设计出了一种能根据路网信息、环境因素及交通管理调度需要而实时诱导交通流的可变交通信息显示系统,并且在节能方面提出双电源供电方案以弥补在交通信息显示方面太阳能应用的空缺。
作者在全面阅读和理解国内外交通信息显示及太阳能光伏应用的基础上,研究了实施交通诱导系统的技术和LED显示屏系统构成及驱动原理,分析比较了各种太阳能蓄电池充放电管理和各种控制技术的优缺点,并且以赣州市为例介绍了如何对太阳能应用进行系统配置和计算。接着重点介绍了本系统终端设备的硬件电路及各功能部分的软件设计,下位机终端设备选择常用51系列AT89C52单片机作为主控器,着重分析设计了各部分硬件电路,包括:实时时钟芯片接口电路、数字温度传感器接口电路、I/O口扩展芯片接口电路、显示屏扫描系统电路、外部数据存储器扩展芯片接口电路、串行通信接口电路、系统电源电路、电压采样电路、蓄电池充放电控制电路,并给出了实际应用电路图,完成了整个系统硬件电路的功能设计;在对蓄电池充电控制中选择了PWM充电控制技术。接着针对上位机开发了一个监控程序,实现了如下功能:实时监测太阳能电池电压、电流以及蓄电池电压、电流和温度;按需求下传交通标志图或交通标语。
最后对存在的一些主要问题进行了分析和讨论,并给出了相应的解决方案。
In this paper, the existing traffic information display terminals device show the existence of a single content and can not be correct and reasonable guide traffic flow and other issues, research and design a Variable traffic information display systems that based on road network information, environmental and traffic management needs of scheduling real-time traffic flow can be induced, and energy-saving aspects of dual-power program to make up for traffic information display in the application of solar energy vacancy.
On the basis of a comprehensive reading and understanding of domestic and international traffic information display and photovoltaic applications , the author of this paper study on the implementation of traffic guidance system technology and LED display system constitutes and principle-driven, compare and analysis of various solar battery charging and discharging management and kinds of control technology advantages and disadvantages, and in Ganzhou City, introduced as an example of how the solar system configuration and application of computing. Then focuses on the system's hardware device and the circuit features some of the software design, under-machine terminal equipment used to choose 51 AT89C52 single chip as a master, focuses on the design of the hardware part of the circuit, including: Real-time clock chip interface circuits, digital temperature sensor interface circuit, I / O port expansion chip interface circuits, display circuit scanning system, expansion of external data memory chip interface circuits, serial communications interface circuits, power supply circuit system, the sampling circuit voltage, battery Charge and discharge control circuit, and gives the practical application of the circuit diagram, The completion of the entire system's hardware design features; on the battery charge control to select a charge PWM control technology. Then PC for the development of a monitoring program to achieve the following features: real-time monitoring of solar battery voltage, current, as well as battery voltage, current and temperature; according to the needs of downstream traffic signs or traffic map slogans.
Finally, there are some of the main issues discussed and analyzed, and given the appropriate solution.
作者在全面阅读和理解国内外交通信息显示及太阳能光伏应用的基础上,研究了实施交通诱导系统的技术和LED显示屏系统构成及驱动原理,分析比较了各种太阳能蓄电池充放电管理和各种控制技术的优缺点,并且以赣州市为例介绍了如何对太阳能应用进行系统配置和计算。接着重点介绍了本系统终端设备的硬件电路及各功能部分的软件设计,下位机终端设备选择常用51系列AT89C52单片机作为主控器,着重分析设计了各部分硬件电路,包括:实时时钟芯片接口电路、数字温度传感器接口电路、I/O口扩展芯片接口电路、显示屏扫描系统电路、外部数据存储器扩展芯片接口电路、串行通信接口电路、系统电源电路、电压采样电路、蓄电池充放电控制电路,并给出了实际应用电路图,完成了整个系统硬件电路的功能设计;在对蓄电池充电控制中选择了PWM充电控制技术。接着针对上位机开发了一个监控程序,实现了如下功能:实时监测太阳能电池电压、电流以及蓄电池电压、电流和温度;按需求下传交通标志图或交通标语。
最后对存在的一些主要问题进行了分析和讨论,并给出了相应的解决方案。
In this paper, the existing traffic information display terminals device show the existence of a single content and can not be correct and reasonable guide traffic flow and other issues, research and design a Variable traffic information display systems that based on road network information, environmental and traffic management needs of scheduling real-time traffic flow can be induced, and energy-saving aspects of dual-power program to make up for traffic information display in the application of solar energy vacancy.
On the basis of a comprehensive reading and understanding of domestic and international traffic information display and photovoltaic applications , the author of this paper study on the implementation of traffic guidance system technology and LED display system constitutes and principle-driven, compare and analysis of various solar battery charging and discharging management and kinds of control technology advantages and disadvantages, and in Ganzhou City, introduced as an example of how the solar system configuration and application of computing. Then focuses on the system's hardware device and the circuit features some of the software design, under-machine terminal equipment used to choose 51 AT89C52 single chip as a master, focuses on the design of the hardware part of the circuit, including: Real-time clock chip interface circuits, digital temperature sensor interface circuit, I / O port expansion chip interface circuits, display circuit scanning system, expansion of external data memory chip interface circuits, serial communications interface circuits, power supply circuit system, the sampling circuit voltage, battery Charge and discharge control circuit, and gives the practical application of the circuit diagram, The completion of the entire system's hardware design features; on the battery charge control to select a charge PWM control technology. Then PC for the development of a monitoring program to achieve the following features: real-time monitoring of solar battery voltage, current, as well as battery voltage, current and temperature; according to the needs of downstream traffic signs or traffic map slogans.
Finally, there are some of the main issues discussed and analyzed, and given the appropriate solution.
引文
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[2]上海邦达电子系统有限公司.高速公路LED可变情报板技术报告,2003
[3]关积珍,邹元英,朱雪良.交通诱导室外LED显示屏有关问题之浅见.现代显示.2004.2:19～22
[4]黄淑琴.公路可变信息标志CMS.国外公路.1996,10:30～31
[5]钱晓辉.可变情报板诱导信息发布系统在上海外环线的应用.上海公路. 2004:46～49
[6]包煊,朱雪良,王义生,关积珍.VMS发布动态交通诱导信息的探讨.现代显示.2006,6:63～66
[7]银通投资咨询公司.全球发展最快的新兴产业之一-太阳能光伏发电业.产经透视[J]2006,4:39～41
[8]何作麻.人类即将迎接太阳能时代,中国科学院院刊[J].2005,20(4):271～274
[9]马胜红,许洪华.光伏发电纵横谈.太阳能[J].2004,1:3～5
[10]王斯成.光伏发电的前景和问题.国际电力[J].1997,4:21～23
[11]Kefa Rabh.deve1opment of energy一efficient passive solar building design in Nicosia CyPrus. Renewable Energy[J].2005,30:937一956
[12]耿新华,赵玉文.光伏发电和光伏产业在本世纪能源中的地位与发展趋势.科学中国人[J].2003,9:24～25
[13]中华人民共和国交通行业标准.高速公路可变信息标志信息的显示和管理JT/T 607—2004.北京:人民交通出版社(第1版).2005,1
[14]于宏程,孙立军.VMS技术的评价现状与进展.上海公路.2003,2:34～37
[15]李先进,花伟.可变情报板对交通安全的影响分析.中国安全科学学报.2005,8:76～78
[16]段广云,沈振宇,朱元亮.高速公路交通信息发布系统实际应用对策.江苏交通.2002,11、12:64～65
[17]于宏程,孙立军.一种新的可变信息标志技术的设计和应用.交通与计算机.2004,6:93～96
[18]逯龙.关于LED信息显示技术在高速公路上的应用.现代显示.2006,6:72～74
[19]孔雷军.广深高速公路可变情报板.广东公路交通.1997年增刊:78～80
[20]王启成.高速公路监控调度中心信息发布探析.第八届中国高速公路信息化管理及技术研讨会.2006,6:407～410
[21]关积珍,何骏,蓝普.智能化信息显示系统中的LED显示屏设计.现代显示.2006,6:59～62
[22]王文逾.高速公路可变情报板的设计与功能.科技情报开发与经济.2005年第15卷第16期:225～226
[23]葛大明,卢本全,代立国.LED可变限速板、可变情报板的硬件技术.辽宁交通科技.2005,3:58～59
[24]诸昌铃.LED显示屏原理与工程技术.成都:电子科技大学出版社.2000,12:86～87
[25]侯烈,李英.浅析沈大高速公路可变情报板的选型.辽宁交通科技.1995,10:12～13
[26]张高强,罗建华.高速公路可变情报板LED单灯组合方案的设计与工程应用.公路交通科技.2003,6:62～64
[27]Nagano K,Mocbida T,et al.Development of thermal一photovoltaic hybrid exterior wallboards incorporating PV cells in and their winter performan.Solor Enerny Materials and Solar lls[J].2003,7:265～282
[28]赵争鸣,刘建政,孙晓英等.太阳能光伏发电及其应用[M].第一版.北京:科学出版社.2005
[29]James P.Dunlop Brian N.Farhi .Recommendations for maximizing battery life in photovoltaic systems:a review of lessons learned Proeeedings of Forum 2001 Solar Energy:The Power to Choose.April 21～25,2001 Washington,DC
[30]王晏.太阳能光伏发电在城市照明系统中的应用及前景.清海科技IJ].2006,4:9～11
[31]赵奇志.太阳能光伏技术在高速公路中的应用探讨.西部交通科技[Jl.2006,5:50～53
[32]王文军,尚庆虎.用于显示屏的发光二极管特性. http://ledclub.net/html/news/200605/20060530001.html
[33]诸吕铃.LED显示屏系统原理及工程技术.电子科技大学出版社,2002
[34]王宏民.LED点阵显示屏驱动方案.黑龙江电子技术.1999,5
[35]缪思恩.LED大屏幕显示电路设计.电子技术应用.1996,8
[36]陈中华,赵敏荣,葛亮等.硅太阳能电池参考模型的简化.上海电力学院学报[J].2006,6:178～180
[37]李安定.太阳能光伏发电系统工程[M]北京.北京工业大学出版社.2001
[38]王长贵,王斯成.太阳能光伏发电实用技术[M].第一版.北京:化学工业出版社.2005
[39]李立伟,邹积岩.蓄电池在线监测系统的设计与实现.电工技术杂志.2002,11:7～9
[40]沈维祥.光伏系统中铅酸蓄电池实际容量的计算.农村能源.1998,2:10～11
[41]C.H.Cai,D.Du,Z.Y.Liu and H.Zhang.Artificial neural network in estimation of battery state一of-charge(SOC) with nonconventional input variables selected by correlational analysis.presented in Machine Learning and Cyberneties,2002
[42] Sunfengchun ,Zhang chengning, Gao haitao.Battery management system with state of charge indicator for electric Vehieles.Journal of Beijing Institute of Technology .Vol.7 No.2 1998
[43]崔岩,蔡炳煌,李大勇等.太阳能光伏模板仿真模型的研究.系统仿真学报[J].2006,4:829～834
[44]F.Krim.Design and implementation of a novel microcontroller一based battery charge controller for maximum-Power operation of stand-alone photovoltaic power systems .CAN.J.ELECT.COMPUT.ENG.,VOL.27,NO.2,April 2002:55～59
[45]Eftiehios Koutroulis etl.Development of a microcontroller一Based,photovoltaic Maximum Power Point Tracking Control System. IEEE Trans.Power Electronics,Vol.16,No.l,Jan. 2001:46～54
[46] X.P.Wang.A modelar battery management system Doctor paper University of Toledo.MAY 2001
[47] Pan shangzhi,Qian zhaoming,Lei na. A novel charge and discharge equalization scheme for battery strings Journal of Zhejiang University Vol.2 No.1,2000:56～59
[48]幸云辉,杨旭东.计算机组成原理实用教程.北京:清华大学出版社,2003
[49]潘永雄.新编单片机原理与应用.西安电子科技大学出版社.2003,2
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