多模卫星信号仿真器的软件设计

本文以多模卫星信号仿真器的研制为背景,对GPS/GLONASS/BD三模仿真器上位机软件设计进行了详细的说明,介绍了仿真器软件开发的总体方案和关键模块,重点对用户界面的设计、上位机与下位机之间的数据通信、多线程的使用进行了详细论述。最后通过实际硬件平台和商用接收机对仿真器进行实验了验证。结果表明,该仿真器产生出的三个导航系统的卫星信号能够被接收机正确接收,验证了仿真器软件的正确性和实用性。     

一种面向医院的输液监控系统的设计

介绍了一种由AT89051单片机构成的医院输液监控系统。本系统包括上位机（PC机）和下位机（AT89C51单片机）。本文对系统如何实现自动检测、自动报警等功能做了详细的分析与研究,利用光电传感器采集点滴的有无,用AT89051作为中央处理器进行信号分析与处理,用RS一485实现上位机（PC机）和下位机（单片机）的通信,用PC机作为上位机对下位机进行控制。     

基于GPRS网络的飞机除冰液加热监控系统

针对飞机除冰液加热,设计了一种基于GPRS(通用分组无线服务)网络的远程监控系统.它可以实现对设备的实时监控,及时有效地完成飞机地面除冰.该系统由上位机和下位机两部分组成:PLC作为下位机的控制系统,对执行机构进行控制输出,并且由A/D转换模块采集加热设备管道内的物理参数;远程控制中心作为上位机的监控系统,包括两种方式:一是利用数据服务中心作为远程控制中心,二是利用组态软件设计系统的操作界面作为远程控制中心.GPRS DTU(data transfer unit)通信模块通过GPRS网络完成与远程控制中心的无线通信,实现上位机与下位机之间的数据交互.     

多用户电能计量管理系统

介绍了根据学生公窝用电负荷特点而研制开发的多用户电能计量控制系统的基本结构及实现方法.系统采用主从式结构,上位机对用户的用电信息进行读写、汇总和管理;下位机采用单片机系统对电量数据进行采集、计量和对用户负载进行监控,由电量采集模块、数据处理/控制模块、显示模块等组成.该系统能够实现用电管理的自动化与智能化,而且计量精度高,工作可靠.     

基于AD7677和M EGA64高速数据采集系统的设计

开发了一套基于AD7677和MEGA64的高速数据采集系统。下位机硬件系统主要由信号调理模块、A/D转换模块、MEGA处理器模块、串口通信模块组成。它能够实现信号的采集及前端处理,并能通过串口总线与上位机通信。上位机软件系统采用NI公司生产的Lab Windows/CVI 8.0工控软件,实现对数据的存储、后端处理及显示。重点阐述了系统原理及硬件、软件的设计。     

路面质量评定系统设计与研究

针对路面质量的检测评定,开发了一套基于加速度传感器实现IRI值软测量的路面质量评定系统.该系统的下位机主要包括信号采集模块、信号调理模块、微处理器模块、信号发送模块和供电模块.信号采集模块运用加速度传感器检测行驶车辆的悬架垂直加速度信号,并通过信号调理模块调整模拟信号的电压范围;微处理器模块对已采集到的信号进行模数转换,通过蓝牙无线发送给上位机该评定系统的上位机包括基于C#环境下的采集控制软件和数据处理软件.经过连续运行测试证明,系统运行稳定,性能可靠,可进行实时采集,应用于路面质量的评定.     

基于GSM的无线智能抄表系统

设计了一种基于GSM模块的无线智能抄表系统,该系统包括上位机、下位机和电表终端三部分。上位机软件通过MAX202对GSM模块进行控制,以短信指令的形式与下位机完成通信。下位机接收上位机发送的短信指令,并将其送入单片机进行处理,通过VP3082将接口转化为RS485接口,与电表终端进行通信,实现数据的读取,再将读取的信息通过GSM模块返回给上位机,最终将数据显示在PC上,从而实现无线智能抄表。该系统解决了传统抄表价格昂贵且效率低等问题。     

基于ARM的多通道液压伺服控制系统

研究了一种以STM32为核心的多通道液压伺服控制系统。分别介绍了系统的硬件设计、软件设计和PID控制算法。硬件部分包括开关量的输入输出模块,基于以太网的通信模块,信号滤波放大模块,A/D转换模块,D/A转换模块,阀颤振模块,功率放大模块。上位机软件由Delphi开发,拥有数据显示、数据保存和分析处理等功能。下位机由PID控制算法对整个系统进行控制。上位机和下位机的通信通过以太网通信模块实现。     

基于GPRS的波浪浮标下位机系统的设计与研究

为实现波浪浮标与远程数据中心之间的数据传输,提出了波浪浮标下位机系统的设计.系统基于通用无线分组业务GPRS,以单片机为核心处理单元,采集到的模拟电压信号转换为数字信号后,自动打包,由SIM300模块向上位机发送,完成下位机与上位机之间的无线通信;同时系统还可接收来自上位机数据中心的控制命令,单片机对其分解后可以用来设置系统采集信号的时间间隔、物理量等工作参量.分析结果表明,与传统传输方式相比较,该方案可以在低成本的前提下实现较高的传输效率,具有一定的实用价值.     

基于蓝牙技术的机场保障设备运行监测系统

针对机场地面保障设备运行状况依靠人工观察所带来的问题,设计了一种基于蓝牙技术的机场保障设备运行监测系统。该系统可以实现机场保障设备在线监测,及时高效地完成机场保障任务。系统由上位机和下位机两部分组成:微处理器作为下位机的控制系统,将采集的机场保障设备运行状态数据信息处理后送入蓝牙模块进行无线发送;工业级平板电脑及人机交互界面作为上位机的监测系统,完成采集数据的接收、存储和实时显示。通过蓝牙模块无线传输实现上位机与下位机之间的数据交互,利用人机交互界面实现在线监测。     

基于DSP飞机配电系统仿真器的研究与设计

本文介绍了飞机配电系统负载仿真器的设计及其实现,主要利用DSP和CPLD来实现路的模拟量、开关量信号输出,其中模拟了实际的SSPC(固态功率控制器)状态、负载电流,以及汇流条电压的情况等.该设计方案的可行性和有效性,已通过实验室原理样机验证.     

基于DAQ-2010的飞机供电参数测试系统

详细介绍了以飞机供电系统的性能参数为研究对象,使用DAQ-2010数据采集卡和虚拟仪器技术设计的飞机供电参数测试系统;并且运用软件工程的方法设计了飞机供电参数测试系统的软件。     

飞机电源多Agent 预测与健康管理系统研究

针对复杂多任务的飞机电源预测与健康管理的需求,以状态维护开放系统体系结构OSA-CBM模型为标准架构,提出一种基于多Agent 的飞机电源故障预测与健康管理系统体系结构模型。结合原型系统开发实例,详细阐述了各Agent 的功能及相互关系。采用AUML 技术构建基于多Agent 的AEPHM系统模型,通过AUML 协议图描述了Agent 之间的主要交互活动。实践表明,该体系结构为航空机载设备预测与健康管理系统建设提供了一种新的设计开发模式。     

基于滑模变结构控制的电动助力转向系统

针对汽车电动助力转向系统，提出滑模变结构控制方法，建立其运动方程，确定了滑模变结构控制器。台架实验结果表明这种滑模变结构控制器与PD控制器相比，其控制方法简单，同时具有更好控制效果。     

项目动态管理系统中Word文档的模板调用和浏览编辑

本文介绍用Delphi5.0开发电网改造项目动态管理系统时,对Word文档的模板调用和浏览编辑。     

An improved power conditioning system for grid integration of solar power using ANFIS based FOPID controller

Power loss become common while integrating with common grid and in specific when power produced through Solar. This is the very lacking area which this proposal implements an Adaptive Neuro Fuzzy Inference System (ANFIS) based controller of Fractional Order Proportional Integral Derivative (FOPID) used for Tracking of Maximum PP of Grid Integrated Solar Power Conditioning System. The proposed work advances with different ambient light conditions for maximum power point traction. In this work a clear-cut Photo Voltaic (PV Cell) model has been developed and an intensive and operative training data have been extracted from the developed controller. This produced dataset have been the feeder input for the ANFIS structure in turn to locate the Tracking of Maximum PP (MPPT). Traction of MPPT is done, the FOPID controller is enforced by matching the voltage from the array of Photo Voltaic cell with attained or reference voltage produced by the ANFIS structure. In the meantime driving this PV array, DC to DC converter's duty cycle is controlled for producing maximum power from the structure. The duty cycle in FOPID controller is generated through calculating the error within the reference voltage and PV voltage. Those values are then simulated through Math Lab and the Simulation results show that this proposed work efficiency is better than the regularly employed controllers in the solar power production and conditioning system     

Nonlinear adaptive decentralized stabilization control for multimachine power systems

This paper presents a decentralized adaptive backstepping controller to dampen oscillations and improve the transient stability to parametric uncertainties in multimachine power systems. The proposed design on the i ^th synchronous generator uses only local information and operates without the need for remote signals from the other generators. The design of the nonlinear controller is based on a modified fourth-order nonlinear model of a synchronous generator, and the automatic voltage regulator model is considered so as to decrease the steady state voltage error. The construction of both the control law and the associated Lyapunov function is systematically designed within the design methodology. A 3-machine power system is used to demonstrate the effectiveness of the proposed controller over two other controllers, namely a conventional damping controller (power system stabilizer) and one designed using the feedback linearization techniques. Recommended by Editorial Board member Gang Tao under the direction of Editor Jae Weon Choi. This work was supported by the Korea Electrical Engineering and Science Research Institute, which is funded by Ministry of Commerce, Industry and Energy. Shan-Ying Li received the B.S. degrees in Computer Science and M.S. degree in Electrical Engineering from Northeast DianLi University, China, in 1997 and 2002, respectively. She obtained the Ph.D. degree in Electrical Engineering from Seoul National University, Korea, in 2008. She is a Post Doctor in North China Electric Power Research Institute, North China Grid Co., Ltd., China. Her research interests are in the areas of advanced control and stability applications on power systems. Sang-Seung Lee received the M.S.E.E. and Ph.D. degrees in Electrical Engineering at Seoul National University. Currently, he is with Power System Research Division of KESRI, Seoul National University, Korea. His interest areas are nonlinear/adaptive control theory, North-East Asia power system interconnection, distributed/small generation, distributed transmission/distribution load flow algorithm, regional/local energy system, PSS (power system stabilizer), and RCM (Reliability Centered Maintenance). Yong Tae Yoon was born in Korea on April 20, 1971. He received the B.S. degree, M.Eng. and Ph.D. degrees from M.I.T., USA in 1995, 1997, and 2001, respectively. Currently, he is an Assistant Professor in the School of Electrical Engineering and Computer Science at Seoul National University, Korea. His special field of interest includes electric power network economics, power system reliability, and the incentive regulation of independent transmission companies. Jong-Keun Park received the B.S. degree in Electrical Engineering from Seoul National University, Seoul, Korea in 1973 and the M.S. and Ph.D. degrees in Electrical Engineering from The University of Tokyo, Japan in 1979 and 1982, respectively. He is currently a Professor of School of Electrical Engineering, Seoul National University. In 1992, he attended as a Visiting Professor at Technology and Policy Program and Laboratory for Electromagnetic and Electronic Systems, Massachusetts Institute of Technology. He is a Senior Member of the IEEE, a Fellow of the IEE, and a Member of Japan Institute of Electrical Engineers (JIEE).     

一种新型飞机电源控制器的设计

电源控制器(PCU)在飞机供电系统(EPS)的控制保护中居于核心地位,设计的飞机电源控制器以高性能DSP芯片TMS320F2812为核心,采用通用的嵌入式硬件和软件设计方法,构建了一个高性能的控制系统平台;通过RS485总线接口实现与地面维护设备的通信,维护方便,通过ARINC429总线通信接口与交流一次配电控制装置通信,接收交流一次配电控制装置发送的命令并向其报告工作状态;根据该原理研制的试验样机现已进入试验验收阶段,试验结果表明,该控制器工作可靠,性能良好。     

Software system of the Earth Simulator

The Earth Simulator (ES) is a large scale, distributed memory, parallel computer system consisting of 640 processor nodes (PN) with shared memory vector multi-processors (64GFLOPS/PN, 5120 APs in total, AP: arithmetic processor). All the nodes are connected via a high speed (16GB/s) single-stage crossbar network called the Interconnection Network (IN).

The operating system for the Earth Simulator is based on SUPER-UX, the UNIX operating system for the SX series scientific supercomputers. In order to realize high-performance parallel processing on the highly parallel machine, the operating system is enhanced for scalability.

The Earth Simulator system is managed as a two-level cluster system called the Super Cluster System. In the Super Cluster System, the Earth Simulator system is divided into 40 clusters (16 PNs/cluster). A single controller called Super Cluster Control Station (SCCS) manages all these clusters. This management system provides Single System Image (SSI) operation, management and job control for the large scale multi-node system.

The Job Scheduler (JS) and NQS running on the SCCS control all jobs of the system. They schedule the resources such as processing nodes and files which have not usually been treated as scheduling resources. This allows efficient scheduling of large scale jobs.

The MPI library (MPI/ES) and the HPF compiler (HPF/ES) are available for distributed parallel programming on the Earth Simulator. MPI/ES conforms to the MPI 2.0 standard and is optimized to exploit the hardware features. HPF/ES conforms to the core part of HPF 2.0 and supports some features of the HPF 2.0 approved extensions and HPF/JA 1.0 extensions. HPF/ES suitably handles the 3-level parallelism of the Earth Simulator system, that is, vectorization, shared-memory parallelization, and distributed-memory parallelization. Moreover, HPF/ES extends the language to easily handle irregular problems.     

基于DSP的CAN总线通信系统

本文给出了一种以DSP为微控制器的CAN总线通信系统，介绍了DSP与CAN控制器的接口电路、工作过程和软件功能，该系统在某中电源监控系统中得到了成功的应用，取得了满意的效果，该方法提供的基本思路也可用于其它CAN分布式控制系统中。