基于MSP430的纸张耐压强度检测系统

基于MSP430单片机开发了一种新型的纸张耐压强度检测系统。采集的微弱信号通过两级放大器放大，测量时自动变换量程,提高了检测结果的精度和稳定性。利用MSP430单片机片上外围部件集成度高的特性，使系统结构紧凑，节约了成本。增强的用户接口界面，使操作简便。     

基于ARM技术的油水双界面监测与自动排放系统

随着油田数字化和自动化管理水平的提高，传统的用人工和重力等原理监测油、水大罐液位和油水界面的方法已经不能适应油田生产需要。介绍一种基于嵌入式技术和分段电容式物位检测传感器设计的可用于油水界面、液住监测、数据远传、显示存储和自动排放控制功能的仪表系统设计方法。该系统的MCU为基于ARM7内核的LPC2210,开发平台为μCLinux嵌入式操作系统。通过现场调试运行，系统可应用于油田生产现场和相关领域。     

车载网络FlexRay拓扑结构的优化

网络拓扑结构对于汽车安全系统有着重要的影响。该文从新型FlexRay线控刹车网络入手,结合拓扑结构的基本理论和FlexRay的总线特点,由简到繁,渐进式地讨论几种不同的网络拓扑配置,并且逐一比较它们的优缺点,最后引入双主动星型连接器,得出一种可靠精密的结构优化解决方案。     

AN INTELLIGENT DECISIONMAKER FOR OPTIMAL CONTROL

We present an expert system that can handle various complicated decision-making problems of optimal control that are hardly solvable manually or even by computer-aided design techniques. The expert system is the first implementation of solving decision-making problems of optimal control using a computer, which paves the way for us to develop the real-time intelligent optimal control environment. Through a user-friendly interface, the expert system can receive the needed information from the user, perform heuristic search, and provide the results of a decisionmaker quickly both on the screen and from a printer. The important features of this expert system are that it () makes a decision on the problem-solving strategies for optimal control, that is, provides the solution structure and transversality conditions as well as types of some key equations; (2) processes symbolic information; (3) breaks down the whole search into three reasoning levels such that the problem can be solved easily and the search routine can be simplified; (4) utilizes “filter rules” to reduce production rules and enhance the program efficiency; (5) modifies the knowledge base and creates new rules in production rule memory; and (6) applies a “certainty factor” to represent imprecise knowledge. The expert system has been implemented using the AI tool OPS5 on a VAX 11/780 computer running under VMS. An example is also used to illustrate our expert system.     

INTEGRATED INTELLIGENT ENVIRONMENT FOR GEAR MANUFACTURING SYSTEM

Abstract

This article investigates the integration of computer-aided design, manufacturing, and testing for gears using a distributed intelligence system. The integration architecture, principles, and implementation for computer integrated manufacturing systems (CIMS) are presented. An integrated intelligent system is developed, which has a parallel hierarchical structure in general and a meta-system as its kernel to manage and control the selection, communication, coordination, and operation of the subsystem. The functions and configuration of the meta-system are discussed in detail. A gear integrated manufacturing system (GIMS) is implemented to demonstrate the feasibility and capability of the integrated intelligent system.     

基于特征库的彩色图像二值化方法

由于彩色物体图像的三基色存在相关性,三维空间阈值区域呈现复杂形态,因此采用标准形状的阈值区域,将会造成所研究图像阈值范围的扩张,从而降低物料检测和分级的精度.采用基于背景特征库的彩色图像二值化分割方法,可以满足任意形状阈值区间的检测,精度取决于三基色数字采样的位数,且具有快速实时处理方法.此外,对于特征库建立过程中的相关问题,进行了分析和讨论.结合实际工程示例给出该方法实验结果.     

单氟磷酸钠应用现状分析

单氟磷酸钠具有重要的应用价值。对单氟磷酸钠在牙膏、食品、医疗、缓蚀剂等方面的应用进行了综述。对单氟磷酸钠应用过程中存在的问题进行分析,并提出发展建议。     

离子型声子晶体中的长波光学性质

提出了离子型声子晶体的概念，制备出一维离子型声子晶体材料，研究了一维离子型声子晶体中的超晶格振动与电磁波的耦合效应，将黄昆方程所预言的一系列长波光学行为，如：极化激元、红外吸收、介导异常等。从红外波段推广到微波波段，并得到了实验验证，预测了这种材料在微波与声学方面可能的应用。     

Effect of deposition temperature on phase formation in Nb/Si multilayers

Abstracts are not published in this journal This revised version was published online in November 2006 with corrections to the Cover Date.