智能注水设备的研究
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摘要
嵌入式系统是指以应用为中心,以计算机技术为基础,软件硬件可裁剪的,适应于应用系统的对功能、可靠性、成本、体积、功耗有严格要求的专用计算机系统。由于嵌入式系统具有体积小、性能强、功耗低、可靠性高以及面向行业应用的突出特征,目前已经广泛地应用于军事国防、消费电子、网络通信、工业控制等各个领域。基于嵌入式芯片的工业自动化设备具有很大的发展空间,目前己经有大量的嵌入式微控制器应用在诸如工业过程控制、数控机床、电力系统、电网安全、电网设备监测、石油化工系统等领域。
本文根据油田二次采油过程中注水的工艺环节,采用嵌入式系统设计了一套自动注水装置。该系统在注水过程中可以实时检测井下压力,将读取的实时压力数据与参考标准压力数据进行比较,并通过控制步进电机实时调整给水阀门,从而动态地实时控制注水的流量,使管道压力始终保持动态恒定。系统采用S3C44b0为核心处理器,充分利用了ARM处理器高性能、低功耗、低成本的优点,完成了系统设计,最后给出仿真实验过程及结论。另外,由于在工业现场总线和以太网之间却没有一套优良的网络设备妥善处理相应数据,不利于数据在不同网络间相互通讯。针对这种情况设计了一种基于ARM处理器的嵌入式以太网接口系统。
实验结果表明,该系统的性能稳定,测量精度和实时性都达到了预期要求,具有可靠性高、操作简单、维护容易等特点,具有很好的应用前景。
Embedded system is specialization computer system which base on the computer technology, emphases application, transplants of the software and hardware, and that rigorous to the aspect of function, reliability, cost, volume, and lower dissipation. Because of the characteristics of small volume, strong performance, lower dissipation and high reliability, the embedded system has applied in military affairs, electric consumable product, network communication, industrial control etc. The industrial automation equipment based on embedded system has been developed widely. Now, a lot of embedded micro control chip have been used in the field of industry process control, numerical control machine, electric power system, electric network security, power network equipment monitor, petrochemical engineering etc.
The embedded system design of water automatic adding instrument for secondary oil production process is based on the core of S3C44b0 processor. The systems were used in oil well pressure real-time measurement and compared the measured data with the standard pressure data. Through analysis, the system will control the switch of water adding electric control valves to real-time adjusting water injecting flux, which can keep the pipeline pressure homeostasis. In the paper, the emulation procedure and conclusion of test are given which is attributing to the advantages of high performance for the embedded system, such as, lower dissipation, low cost, high reliability, simple operation, easy maintenance etc. In addition, an embedded Ethernet interface system based on ARM processor is also designed in this paper, because there didn’t have a set of good network equipment to deal with network data between the industrial locale bus and the Ethernet.
The experiment results indicated that the system design caters to prospective requirement of high accuracy, well repeatability, real-time control, long using-life etc. The system expectant to have better application foreground,
本文根据油田二次采油过程中注水的工艺环节,采用嵌入式系统设计了一套自动注水装置。该系统在注水过程中可以实时检测井下压力,将读取的实时压力数据与参考标准压力数据进行比较,并通过控制步进电机实时调整给水阀门,从而动态地实时控制注水的流量,使管道压力始终保持动态恒定。系统采用S3C44b0为核心处理器,充分利用了ARM处理器高性能、低功耗、低成本的优点,完成了系统设计,最后给出仿真实验过程及结论。另外,由于在工业现场总线和以太网之间却没有一套优良的网络设备妥善处理相应数据,不利于数据在不同网络间相互通讯。针对这种情况设计了一种基于ARM处理器的嵌入式以太网接口系统。
实验结果表明,该系统的性能稳定,测量精度和实时性都达到了预期要求,具有可靠性高、操作简单、维护容易等特点,具有很好的应用前景。
Embedded system is specialization computer system which base on the computer technology, emphases application, transplants of the software and hardware, and that rigorous to the aspect of function, reliability, cost, volume, and lower dissipation. Because of the characteristics of small volume, strong performance, lower dissipation and high reliability, the embedded system has applied in military affairs, electric consumable product, network communication, industrial control etc. The industrial automation equipment based on embedded system has been developed widely. Now, a lot of embedded micro control chip have been used in the field of industry process control, numerical control machine, electric power system, electric network security, power network equipment monitor, petrochemical engineering etc.
The embedded system design of water automatic adding instrument for secondary oil production process is based on the core of S3C44b0 processor. The systems were used in oil well pressure real-time measurement and compared the measured data with the standard pressure data. Through analysis, the system will control the switch of water adding electric control valves to real-time adjusting water injecting flux, which can keep the pipeline pressure homeostasis. In the paper, the emulation procedure and conclusion of test are given which is attributing to the advantages of high performance for the embedded system, such as, lower dissipation, low cost, high reliability, simple operation, easy maintenance etc. In addition, an embedded Ethernet interface system based on ARM processor is also designed in this paper, because there didn’t have a set of good network equipment to deal with network data between the industrial locale bus and the Ethernet.
The experiment results indicated that the system design caters to prospective requirement of high accuracy, well repeatability, real-time control, long using-life etc. The system expectant to have better application foreground,
引文
[1]汪捷,徐金华.嵌入式系统概述.机床与液压[J].2006,4:4-6
[2]马义德,刘映杰.张新国1嵌入式系统的现状及发展前景[J].信息技术.2001(12):57-59
[3]凌志浩,张文超,俞金寿.嵌入式系统结构及其发展概况.自动化仪表[J].2003,24(4) :1-51
[4]冯继超.面向二十一世纪的嵌入式系统及发展方向.工业控制计算机[J].2001,14(5):1–21
[5]金 晟,傅建中,陈子辰.基于ARM的嵌入式数控系统设计[J].机电工程.2005,22(2):56-58
[6]郭 伟.一种基于DSP的四轴运动控制卡的研究与设计[J].电器自动化,2001,(2) :18-20.
[7]EhsanJalilian,DenisOnena,EmilNeshev,MartinP.Mintchev.Implantable neural electrical stimulator forexternal control of gastro intestinal motility[J].Medical Engineering&Physics.29(2007):238–252
[8]ArnonAmira,LiorZimet,AlbertoSangiovanni-Vincentelli,SeanKao.An embedded system foraneye-detection sensor[J].Computer Visionand Image Understanding 98(2005):104–123
[9]程步奇 尹宝林.可动态扩展的嵌入式操作系统.小型微型计算机系统[J].2003,2:216-219
[10]涂刚,阳富民,胡贯容.嵌入操作系统综述[J].2000,11:4-9
[11]李志勇,宋颖慧,侯 爽.面向数控设备的嵌入式操作系统NC2Linux.计算机工程[J].2004,(2):142-144
[12]姚放吾.嵌入式系统的硬件/软件协同设计[J].微计算机信息.2001,(3) :1～3
[13]张永强,赵永勇,李崇德.嵌入式远程视频采集系统的设计与实现[J].现代电子技术.2006,4:75-77
[14]EhsanJalilian,DenisOnena,EmilNeshev,MartinP.Mintchev.Implantable neural electrical stimulator forexternal control of gastro intestinal motility[J].Medical Engineering&Physics 29(2007):238–252
[15]M.Jersak,K.Richter,R.Ernst.Interval-based analysisin embedded system design[J].Mathematics and Computer sinSimulation 66(2004):231–242
[16]RajeshK.Gupta,GiovanniDeMicheli.Constrained software synthesis forembedded applications[J].Journal of Systems Architecture 43(1997):557-586
[17]谈宏华,黎爱琼,陈家林,杨志方.用ARM7微处理器实现LED显示[J].计算技 术与自动化.2005,(3):330-32
[18]张晶,曾宪云.嵌入式系统概述[J].电测与仪表.2002,(4):42-45.
[19]朱六兵,石 禹,杨 斌.GkvIntel386TMEX的JTAG口对Flash编程[J].信息技术.2006,(2):95-112
[20]虞志益,雷健飞,李文宏,章倩苓.一种适合于SOC系统的JTAG扩展化可测性设计[J].固体电子学研究与进展.2003,1:62-66
[21]丁玉国,梁维谦,刘 加,刘润生.一种应用于嵌入式语音识别的端点检测方法[J].计算机应用研究.2006,4:193-195
[22]C.Tanougast,Y.Berviller,P.Brunet,S.Weber,H.Rabah.Temporal partitioning method ologyoptimizing FPG Are sourcesfor dynamically reconfigurable embedded real-time system[J].Microprocessors and Microsystems 27(2003):115–130
[23]M.Jersak,K.Richter,R.Ernst.Interval-based analysis in embedded system design[J].Mathematics and Computers in Simulation 66(2004):231–242
[24]G.Ascia,V.Catania,M.Palesi,D.Patti,EPIC-Explorer:aparameterized VLIW-based platform frame workfor design space exploration,in:First Workshop on Embedded Systems for Real-Time Multimedia(ESTIMedia),NewportBeach,California,USA,2003,pp.65–72.
[25]A.A.Jerraya,W.Wolf,Hardware/software interface codesign for embeddedsystems[C] .IEEE Computer(Feb.2005):63–69.
[26]L.Sha,R.Rajkumar,S.S.Sathaye,Generalizedrate-monotonic scheduling theory:aframe work for developing real-time systems,in:Proceeding soft heIEEE,vol.82,no.1,pp.86–82,1994[SSL89].B.Sprunt,L.Sha,J.Lehoczky,AperiodicTaskSchedulingforHardReal-TimeSystems,J.Real-TimeSyst.1(1)(1989):27–60.
[27]黄 勋,唐慧强.嵌入式平台ARM2uClinux的构建与应用开发[J].武汉理工大学学报.2006,1:174-177
[28]CLLiu,CLLayland,JW.Scheduling algorithms formul tiprogramming in hard real-time environment[J].Journal of theACM.1973.20.46~61.
[29]吉 峰, 白瑞林.基于Flash存储器的嵌入式文件系统设计[J].江南大学学报(自然科学版).2006,1:1-5
[30]EdgarG.Daylight,BartDemoen,Francky Catthoor.Formally Specifying Dynamic Data Structures for Embedded Software Design:an Initial Approach[J].Electronic Notesin Theoretical Computer Science 108(2004)99–112
[31]Chun-CheHuang, WenYauLiang.Object-oriented development of the embedded system based on Petri-nets[J].Computer Standards & Interfaces 26(2004) 187–203
[32]钟忻慕,慕春棣.基于闪存的文件系统的实现[J].计算机工程与应用.2003,39(24) :133-135.
[33]李志勇,宋颖慧,侯 爽.面向数控设备的嵌入式操作系统NC2Linux[J].计算机工程,2004,(2):142-144.
[34]王保进,李建新,岳春生.一种嵌入式实时操作系统的分析.1999,3:14-17
[35]WolfgangGrieskamp,MarittaHeisel,HeikoD?rr.Specifying embedded system swith state chartsand Z:anagendaforcyclic software components[J].Science of Computer Programming.2001.40.31~57
[36]胡志坤.基于嵌入式Linux的气象数据采集系统的设计[J].电子工程师.2004(2):69-71
[37]P.N.Green,M.D.Edwards.Object oriented development method for reconfigurable eembedded systems[C].IEEE Proc.-Comput.Digit. Tech. 2000.147. 153~158
[38]肖英奎,赵丁选,尚 涛,陈 宁.嵌入式运动信号采集系统研究[J].农业机械学报.2006,2:168-170
[39]JackP.F.Glas.AnembeddedCDMA-receiverAdesignexample[C].INTEGRATION,theVLSIjournal23 (1997),95-l11
[40]G.Ascia,V.Catania,M.Palesi,D.Patti,EPIC-Explorer: apara meterized VLIW-based platform framework for design space exploration,in:First Workshop on Embedded Systems for Real-Time Multimedia(ESTIMedia)[C],NewportBeach,California,USA,2003,pp.65–72.
[41]齐开悦,陈剑波.基于Linux操作系统的液晶显示屏驱动程序的开发[J].计算机工程.2003(4):188-190
[42]GiorgioButtazzo,MarcoSpuri,FabrizioSensini.Valuevs.Deadline Scheduling in Overload Conditions[C]. Proceeding of 16th IEEE Real-Time Systems Symposium.1995.90~100
[43]谈宏华,黎爱琼,陈家林,杨志方.用ARM7微处理器实现LED显示[J].计算技术与自动化.2005(3):330-32
[44]杨悦梅.液晶显示在嵌入式系统中的应用[J].国外电子元器件[J].2003,7(7):35-38
[45]A.A.Jerraya,W.Wolf,Hardware/software interface codesign for embedded systems[C],IEEE Computer (Feb.2005)63–69.
[46]N.Shehabuddeen,F.Hunt,D.Probert,Insights into Embedded Software Sourcing Decisions:Practical Concerns and Business Perspectives,Engineering Management Conference[C],2002.IEMC’02,2002 IEEEInternational 1,IEEEPress,Piscataway,NJ,USA,2002,pp.328–333.
[47]林树新,吴朝晖.Linux键盘驱动的移植分析及实现[J].计 算 机 工程.2005,2:211-213
[48]朱 昊,张侃谕,由守明.嵌入式Linux下一种新的键盘设计和驱动程序开发[J].微型电脑应用.2005,3:44-47
[49]吴 旭,屈万里.S3C44B0X按键键盘的μClinux驱动程序设计[J].电子工程师.2006.5.50-51
[50]MayezAl-Mouhamed,AdelAl-Massarani.Scheduling optimization through iterative refinement.Journal of Systems Architecture.2000.46.851~871
[51]陈光绒,胡克满.键盘显示智能控制芯片HD7279A的应用设计[J].宁波职业技术学院学报.2006,5:36-38
[52]G.Ascia,V.Catania,M.Palesi,AGA based design space exploration framework for parameterized system-on-a-chipplat forms,IEEE Transactions on Evolutionary Computation 8(4)(2004)329–346.
[53]田俊,叶念渝,阮国强.可无线编程的嵌入式小型机器人系统的实现[J].工业控制计算机.2006,3:341-43
[54]PadmanabhanKrishnan.Autimatic synthesis of a sub class of scheduler sintimed systems[J].Theoretical Computer Science.2003,298,347~363
[55]刘东红.利用单片机89C52的一个并行I/O口实现多个LED显示的一种简单方法[J].国外电子元器件.2002,8(8):4-6
[56]GutjahrWJ,UchidaG.Abranch-and-bound approach to the optimization of redundants of tware underfailure correlation [J].Computer OperRes2002;29:1773–91.
[57]ZafiropoulosEP,DialynasEN.Reliability and costoptimization of electronic devices considering the component failurerate uncertainty[J].Reliab EngSystSaf2004.84:271–84.
[58]N.Vijaykrishnan,M.Kandemi. “Evaluating integrated hardware-software optimization susing aunified energyestimation framework” [C] .IEEE Transactionson Computers.Vol.5.2,No.1,pp 59-75,Jan.2003.
[59]B.Broekman,E.Notenboom.Testing Embedded Software[J].Addison-Wesley,2003,pp.113–178
[60]H.Freeman.“Software testing” [C] .instrumentation & measurement magazine,IEEE5(3).(2002)48–50
[61]王丽娜,肖冬荣.基于ARM模型的经济非稳时间系列的预测分析[J].武汉理工大学学报(交通科学与工程版) ,2004,28(1) :133～136
[62]AlexanderChatzigeorgiou.PerformanceandpowerevaluationofC++object-orientedprogrammingin embedded processors[J].Informationand SoftwareTechnology.2003.45.195~201
[63]王 东,李哲英.U2Boot在S3C44B0上的移植方法[J].北 京 交 通 大 学 学 报.2005,2:76-80
[2]马义德,刘映杰.张新国1嵌入式系统的现状及发展前景[J].信息技术.2001(12):57-59
[3]凌志浩,张文超,俞金寿.嵌入式系统结构及其发展概况.自动化仪表[J].2003,24(4) :1-51
[4]冯继超.面向二十一世纪的嵌入式系统及发展方向.工业控制计算机[J].2001,14(5):1–21
[5]金 晟,傅建中,陈子辰.基于ARM的嵌入式数控系统设计[J].机电工程.2005,22(2):56-58
[6]郭 伟.一种基于DSP的四轴运动控制卡的研究与设计[J].电器自动化,2001,(2) :18-20.
[7]EhsanJalilian,DenisOnena,EmilNeshev,MartinP.Mintchev.Implantable neural electrical stimulator forexternal control of gastro intestinal motility[J].Medical Engineering&Physics.29(2007):238–252
[8]ArnonAmira,LiorZimet,AlbertoSangiovanni-Vincentelli,SeanKao.An embedded system foraneye-detection sensor[J].Computer Visionand Image Understanding 98(2005):104–123
[9]程步奇 尹宝林.可动态扩展的嵌入式操作系统.小型微型计算机系统[J].2003,2:216-219
[10]涂刚,阳富民,胡贯容.嵌入操作系统综述[J].2000,11:4-9
[11]李志勇,宋颖慧,侯 爽.面向数控设备的嵌入式操作系统NC2Linux.计算机工程[J].2004,(2):142-144
[12]姚放吾.嵌入式系统的硬件/软件协同设计[J].微计算机信息.2001,(3) :1～3
[13]张永强,赵永勇,李崇德.嵌入式远程视频采集系统的设计与实现[J].现代电子技术.2006,4:75-77
[14]EhsanJalilian,DenisOnena,EmilNeshev,MartinP.Mintchev.Implantable neural electrical stimulator forexternal control of gastro intestinal motility[J].Medical Engineering&Physics 29(2007):238–252
[15]M.Jersak,K.Richter,R.Ernst.Interval-based analysisin embedded system design[J].Mathematics and Computer sinSimulation 66(2004):231–242
[16]RajeshK.Gupta,GiovanniDeMicheli.Constrained software synthesis forembedded applications[J].Journal of Systems Architecture 43(1997):557-586
[17]谈宏华,黎爱琼,陈家林,杨志方.用ARM7微处理器实现LED显示[J].计算技 术与自动化.2005,(3):330-32
[18]张晶,曾宪云.嵌入式系统概述[J].电测与仪表.2002,(4):42-45.
[19]朱六兵,石 禹,杨 斌.GkvIntel386TMEX的JTAG口对Flash编程[J].信息技术.2006,(2):95-112
[20]虞志益,雷健飞,李文宏,章倩苓.一种适合于SOC系统的JTAG扩展化可测性设计[J].固体电子学研究与进展.2003,1:62-66
[21]丁玉国,梁维谦,刘 加,刘润生.一种应用于嵌入式语音识别的端点检测方法[J].计算机应用研究.2006,4:193-195
[22]C.Tanougast,Y.Berviller,P.Brunet,S.Weber,H.Rabah.Temporal partitioning method ologyoptimizing FPG Are sourcesfor dynamically reconfigurable embedded real-time system[J].Microprocessors and Microsystems 27(2003):115–130
[23]M.Jersak,K.Richter,R.Ernst.Interval-based analysis in embedded system design[J].Mathematics and Computers in Simulation 66(2004):231–242
[24]G.Ascia,V.Catania,M.Palesi,D.Patti,EPIC-Explorer:aparameterized VLIW-based platform frame workfor design space exploration,in:First Workshop on Embedded Systems for Real-Time Multimedia(ESTIMedia),NewportBeach,California,USA,2003,pp.65–72.
[25]A.A.Jerraya,W.Wolf,Hardware/software interface codesign for embeddedsystems[C] .IEEE Computer(Feb.2005):63–69.
[26]L.Sha,R.Rajkumar,S.S.Sathaye,Generalizedrate-monotonic scheduling theory:aframe work for developing real-time systems,in:Proceeding soft heIEEE,vol.82,no.1,pp.86–82,1994[SSL89].B.Sprunt,L.Sha,J.Lehoczky,AperiodicTaskSchedulingforHardReal-TimeSystems,J.Real-TimeSyst.1(1)(1989):27–60.
[27]黄 勋,唐慧强.嵌入式平台ARM2uClinux的构建与应用开发[J].武汉理工大学学报.2006,1:174-177
[28]CLLiu,CLLayland,JW.Scheduling algorithms formul tiprogramming in hard real-time environment[J].Journal of theACM.1973.20.46~61.
[29]吉 峰, 白瑞林.基于Flash存储器的嵌入式文件系统设计[J].江南大学学报(自然科学版).2006,1:1-5
[30]EdgarG.Daylight,BartDemoen,Francky Catthoor.Formally Specifying Dynamic Data Structures for Embedded Software Design:an Initial Approach[J].Electronic Notesin Theoretical Computer Science 108(2004)99–112
[31]Chun-CheHuang, WenYauLiang.Object-oriented development of the embedded system based on Petri-nets[J].Computer Standards & Interfaces 26(2004) 187–203
[32]钟忻慕,慕春棣.基于闪存的文件系统的实现[J].计算机工程与应用.2003,39(24) :133-135.
[33]李志勇,宋颖慧,侯 爽.面向数控设备的嵌入式操作系统NC2Linux[J].计算机工程,2004,(2):142-144.
[34]王保进,李建新,岳春生.一种嵌入式实时操作系统的分析.1999,3:14-17
[35]WolfgangGrieskamp,MarittaHeisel,HeikoD?rr.Specifying embedded system swith state chartsand Z:anagendaforcyclic software components[J].Science of Computer Programming.2001.40.31~57
[36]胡志坤.基于嵌入式Linux的气象数据采集系统的设计[J].电子工程师.2004(2):69-71
[37]P.N.Green,M.D.Edwards.Object oriented development method for reconfigurable eembedded systems[C].IEEE Proc.-Comput.Digit. Tech. 2000.147. 153~158
[38]肖英奎,赵丁选,尚 涛,陈 宁.嵌入式运动信号采集系统研究[J].农业机械学报.2006,2:168-170
[39]JackP.F.Glas.AnembeddedCDMA-receiverAdesignexample[C].INTEGRATION,theVLSIjournal23 (1997),95-l11
[40]G.Ascia,V.Catania,M.Palesi,D.Patti,EPIC-Explorer: apara meterized VLIW-based platform framework for design space exploration,in:First Workshop on Embedded Systems for Real-Time Multimedia(ESTIMedia)[C],NewportBeach,California,USA,2003,pp.65–72.
[41]齐开悦,陈剑波.基于Linux操作系统的液晶显示屏驱动程序的开发[J].计算机工程.2003(4):188-190
[42]GiorgioButtazzo,MarcoSpuri,FabrizioSensini.Valuevs.Deadline Scheduling in Overload Conditions[C]. Proceeding of 16th IEEE Real-Time Systems Symposium.1995.90~100
[43]谈宏华,黎爱琼,陈家林,杨志方.用ARM7微处理器实现LED显示[J].计算技术与自动化.2005(3):330-32
[44]杨悦梅.液晶显示在嵌入式系统中的应用[J].国外电子元器件[J].2003,7(7):35-38
[45]A.A.Jerraya,W.Wolf,Hardware/software interface codesign for embedded systems[C],IEEE Computer (Feb.2005)63–69.
[46]N.Shehabuddeen,F.Hunt,D.Probert,Insights into Embedded Software Sourcing Decisions:Practical Concerns and Business Perspectives,Engineering Management Conference[C],2002.IEMC’02,2002 IEEEInternational 1,IEEEPress,Piscataway,NJ,USA,2002,pp.328–333.
[47]林树新,吴朝晖.Linux键盘驱动的移植分析及实现[J].计 算 机 工程.2005,2:211-213
[48]朱 昊,张侃谕,由守明.嵌入式Linux下一种新的键盘设计和驱动程序开发[J].微型电脑应用.2005,3:44-47
[49]吴 旭,屈万里.S3C44B0X按键键盘的μClinux驱动程序设计[J].电子工程师.2006.5.50-51
[50]MayezAl-Mouhamed,AdelAl-Massarani.Scheduling optimization through iterative refinement.Journal of Systems Architecture.2000.46.851~871
[51]陈光绒,胡克满.键盘显示智能控制芯片HD7279A的应用设计[J].宁波职业技术学院学报.2006,5:36-38
[52]G.Ascia,V.Catania,M.Palesi,AGA based design space exploration framework for parameterized system-on-a-chipplat forms,IEEE Transactions on Evolutionary Computation 8(4)(2004)329–346.
[53]田俊,叶念渝,阮国强.可无线编程的嵌入式小型机器人系统的实现[J].工业控制计算机.2006,3:341-43
[54]PadmanabhanKrishnan.Autimatic synthesis of a sub class of scheduler sintimed systems[J].Theoretical Computer Science.2003,298,347~363
[55]刘东红.利用单片机89C52的一个并行I/O口实现多个LED显示的一种简单方法[J].国外电子元器件.2002,8(8):4-6
[56]GutjahrWJ,UchidaG.Abranch-and-bound approach to the optimization of redundants of tware underfailure correlation [J].Computer OperRes2002;29:1773–91.
[57]ZafiropoulosEP,DialynasEN.Reliability and costoptimization of electronic devices considering the component failurerate uncertainty[J].Reliab EngSystSaf2004.84:271–84.
[58]N.Vijaykrishnan,M.Kandemi. “Evaluating integrated hardware-software optimization susing aunified energyestimation framework” [C] .IEEE Transactionson Computers.Vol.5.2,No.1,pp 59-75,Jan.2003.
[59]B.Broekman,E.Notenboom.Testing Embedded Software[J].Addison-Wesley,2003,pp.113–178
[60]H.Freeman.“Software testing” [C] .instrumentation & measurement magazine,IEEE5(3).(2002)48–50
[61]王丽娜,肖冬荣.基于ARM模型的经济非稳时间系列的预测分析[J].武汉理工大学学报(交通科学与工程版) ,2004,28(1) :133～136
[62]AlexanderChatzigeorgiou.PerformanceandpowerevaluationofC++object-orientedprogrammingin embedded processors[J].Informationand SoftwareTechnology.2003.45.195~201
[63]王 东,李哲英.U2Boot在S3C44B0上的移植方法[J].北 京 交 通 大 学 学 报.2005,2:76-80
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