基于CAN总线的新能源车载空调标定软件的设计

针对传统车载空调标定软件的操作复杂、通用性差、适用人群有限等缺点,采用CAN总线的网络互连方式来组织车载空调标定系统,使用标定软件对空调、变频器内的各参数进行在线标定、实时监测.使用C#设计的标定软件平台,界面简洁,操作方便,通用性强.该软件不仅为汽车空调控制系统提供了准确、实时的通信保证,而且也为系统检测提供了有利的保障.     

基于Atmega16的商用车辆空调系统设计

介绍了以Atmega16单片机为核心部件的汽车空调控制系统的基本功能、电气原理、主要硬件电路设计和软件的实现流程,并给出了相关设计图样.同时还介绍了Atmega16的基本性能特点和系统的抗干扰措施.该空调控制器经实际运行,系统工作良好,可有效提高乘坐的舒适性.     

基于dSPACE的水箱液位控制系统

以水箱液位系统为研究对象,基于dSPACE-DS1103单板系统和Matlab/Simulink软件环境,建立了水箱液位系统的实时控制平台。在该平台上,使用dSPACE提供的Real-Time Interface(RTI),通过扩展Matlab的实时工具箱Real-Time Workshop(RTW),实现了从Simulink模型到dSPACE实时硬件代码的自动下载。水箱液位控制系统采用双闭环串级控制,其主调节器分别采用常规PID和单神经元自适应PID控制器进行实验研究。实验结果表明在该实时控制平台上,液位控制系统采用单神经元自适应PID控制器能够获得良好的动态性能,满足对液位的控制要求。     

基于Matlab的开放式六自由度机器人控制系统研究

针对工业机器人控制系统算法封闭的现状,自主设计了一套基于Matlab的开放式六自由度机器人实时控制系统,采用模块化分布式的控制方式,上、下位机以CAN总线进行实时通信,上位机运用基于模型设计的流程进行机器人控制器的开发;下位机以DSP为主控制器,设计6个机器人关节驱动器.控制系统将机器人正运动学、逆运动学、轨迹规划以及通信算法全都融入其中,并且本开放式平台将系统仿真、研发设计、功能测试等环节都统一在Matlab环境中,提高了开发效率.通过仿真和试验验证,该平台能够较好地控制六自由度机器人,具有实时控制、实时监测的功能,并兼具良好的开放性能.     

基于PROFIBUS现场总线的集成控制系统在中央空调自控系统中的应用

结合印刷企业中央空调系统的工艺特点，本文描述了基于西门子S7—200系列可编程序控制器CPU224、工业现场总线(PROFIBUS)、USS通用串行接口标准协议、组态软件WINCC5．0等构成的集成控制系统，详细介绍了控制系统结构、原理及控制系统在空调自动控制中的实际应用．     

手术辅助机器人的运动控制器设计

指在为颅颌面外科手术辅助机器人设计一个实时性好、可靠性高的运动控制器。该控制器以YASKAWA公司提供的MP2100运动控制卡、∑-V伺服驱动器和伺服电机为硬件核心,软件以Visual Studio为开发工具,在Windows平台上实现界面友好、使用简单的系统软件。设计中引入强实时扩展软件RTX,提高了Windows系统的实时性和可靠性。同时在实时子系统（RTSS,real-time subsystem）下实现对机器人的多线程多任务操作,控制系统的非实时部分和实时部分通过共享内存来通信。通过伺服轴的手动控制以及自动直线插补、圆弧插补等实验,验证了系统功能。     

基于LabVIEW的多点温度检测及系统控制

基于LabVIEW操作平台,采用多传感器技术设计了多点温度检测和控制系统.对多个1-wire数字温度传感器DS18B20采用多传感器数据融合技术优化数据;温度控制采用Fuzzy控制器与PID控制器并行的工作方式.仿真结果表明,系统可靠性高,在实现系统精确控温的同时,具有操作界面简单、可视性好的特点.另外,使用虚拟仪器技术,使系统测控品质实时可视.     

基于SERCOS-Ⅲ的工业机器人控制器设计

针对基于实时以太网的模块化、开放式工业机器人控制系统开发技术进行了研究,提出了基于SERCOS-Ⅲ实时以太网的工业机器人控制器软硬件体系架构,其中硬件设计以ARM cortex A8嵌入式处理器为机器人控制器的核心CPU,在其上搭建通用通信模块comX100-CA-RE作为SERCOS-Ⅲ的通讯主站;在软件设计方面,完成了comX通信模块在RT-Linux下的驱动程序开发,实现主、从站之间的实时通信,并完成了工业机器人的点动控制.将上述控制系统在多轴运动控制平台上进行了物理实验,其结果表明了所开发控制系统的有效性.     

机电一体化创新实验柔性平台软件开发

在Windows环境下,采用Visual Basic以及面向对象、模块化的程序设计方法,研究开发了柔性实验平台的软件控制系统.根据实验平台的控制要求,将软件系统划分为客户机模拟实验系统、主控机实验管理系统和教学维护系统三大主要模块.利用WinSock控件实现主控机与客户机间局域网通信,采用纯软件方式编译数控机床NC代码,采用CAN总线实现上下位机之间的通信,结合OpenGL技术实现实验平台执行机构运动过程的三维仿真.经实际应用证明,该软件系统准确地完成了对实验柔性平台的控制,为培养不同层次的数控技术人才提供了理想的实验环境.     

电容型混合动力轿车冷起动试验测控系统开发

将混合动力轿车CAN网络中的整车控制器与发动机控制器集成为多能源管理控制器,它与ISG电机控制器通过CAN总线相连.PC机通过NI PXI-8464接口卡接到CAN总线上,实时读取各个控制器的参数及修改控制器中的数据.采用开发工具LabVIEW 8.5设计了实时监控平台软件,并用于混合动力轿车冷起动试验中.试验结果表明,此平台具有参数实时显示、指令发送、电机测试、数据保存等功能和良好的人机交互式界面,满足了混合动力轿车冷起动试验的各种需求,很好地实现了对混合动力轿车起动控制策略制定、试验参数的优化、试验数据的分析.     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the     

An affordable accurate evaluation of the binding conformations predicted by molecular docking studies in bio-system

Franck-Condon factors bridge the gap between theoretical modeling and experimental observations for molecular electronic spectroscopy and electron transfer.Under the displaced harmonic oscillator approximation,multidimensional Franck-Condon factors are decomposed into a product of many one-dimensional(1D)Franck-Condon(FC)factors,and each 1D-FC factor is associated with one Huang-Rhys factor that determines the leading contribution of     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with     

Journal of Donghua University ( English Edition) Contents of Volume 31

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