The Introduction CS5534 A/D Converter And Application Of It On High Precision Analog Signal Collection Board

CS5534是美国CIRRUSLOGIC公司推出的低噪声24位型A/D转换器。本文介绍该芯片的组成结构,功能及工作方式等特性,并将其应用于高精度模拟量采集卡的设计中;同时,文中给出采集卡的硬件电路设计和相应的C51软件设计。CS5534 is a Delta-Sigma Analog-to-Digital Converter which can achieve a low noise and 24bit performance. This paper introduces several features of the chip, such as structure, function and operating mode, and uses it in a high precision analog signal collection board; at the same time, the paper provides the design of hardware circuits and the C51 software.福建省青年科技人才创新项目资助,编号:2004J02

Application of MVC Framework in JSP+JavaBean Model

在介绍Model-View-Controller(MVC)架构原理的基础上,分析了用Java开发Web系统的两种模式,提出将MVC架构思想融入JSP+JavaBean开发模式的方案。该方案能够发挥JSP+JavaBean代码编写容易、重复利用性高的优点,同时有效避免其缺乏流程控制的缺点。最后结合用户登录模块,演示此方案的实现代码。Based on the introduction of Model-View-Controller framework theory,two models used to develop Web projects with Java are analyzed emphatically and a new scheme is brought forward.In this scheme the idea of MVC is integrated into the development model of JSP and JavaBean.So this scheme takes full advantages of easy code editing and efficient code reusing and highly avoids disadvantages of the weakness of controlling operation flow.In the end the realization codes are demonstrated with a user entry module.福建省科技计划项目(2004J020

Design and Implementation of VIP Functional Module of Advanced Elevators

针对高端电梯控制系统,设计一种VIP功能模块。该模块具有安全稳定、功能丰富、扩展性强的特点,重点研究了VIP信息读取、通过TWI总线查询EEPrOM内信息等关键技术;经过现场实际测试,该模块运行良好,有较好的推广前景。A VIP functional module designed for advanced elevator control system.The module has safe,stable,and high extendibility characteristic.Several key technologies emphasized such as reading VIP information,querying information by TWI bus.Through the on-site test,the module proved to be running well,and with a good promotion prospects.厦门市科技项目(项目编号:3502Z20093005

Signal Processing for Encoder of Elevator Based on CPLD

提出以CPld作为处理器的协处理单元,处理电梯编码器信号的设计方案。CPld以总线扩展方式来实现与处理器的通信。经软件仿真和现场测试证明,该方案能很好地处理电梯编码器信号。This paper proposed a design scheme that CPLD as a co-processing unit of the Processor,processing the signal of elevator encoder.Comunica-tion between CPLD and processor is realized by the way of bus extention.The scheme is proved to handle well the signal of elevator encoder through running in simulation and practice.厦门市科技计划项目(3502Z20103002)资

Design of Signal Collection Card Based on MODBUS Communication

在分布式数据采集与监测系统中,往往需要实时采集远程被控对象的各种参数,并与上位控制中心进行数据交换。本文介绍了基于M ODBU S通讯协议的信号采集卡硬件和软件设计。其硬件主要分为信号采集和通信2部分。本卡主要采集各种数字量,如按键是否按下,继电器是否闭合等。由于PC机串行口最大传输距离仅为50~100 ft,因此采用RS485总线实现数据的远程传输。软件部分采用C语言编写下位机程序,而上位机界面的搭建选用VB。该采集卡可以运用到许多实际的工控场合。In distributed data collection and supervision systems,it is needed to collect the parameters of the controlled object and exchange datas with master control center.The paper introduces hardware and software design of signal collection card which is based on MODBUS protocol.The hardware is mainly composed by two parts,signal collection and communication.This card mainly collects digital datas,such as states of buttons or relays,and so on.Because the max transport distance of serial port of PC is only 50~100 ft,so RS485 Bus is used to realize the remote data transmission.The software of slave computer is programmed by C;while the interface of master computer is built by VB.The card could be applied to many industrial control occasions.福建省青年科技人才创新项目(2004J020

The Design of Intelligent Street Lamps' Monitoring Website Based on GIS

针对城市路灯监控系统web网站的开发,采用ASP.Net2.0技术、开发一套基于地理信息系统(GIS)的城市路灯web查询网站。该网站通过GIS技术把路灯信息数据库集成与城市电子地图相结合,可方便地在电子地图上实时查询城市路灯的运行状况,及时、准确的反映城市路灯的亮灯率、照度、功率、电流、报警等详细信息;同时,网站利用ASP.Net2.0的code-Besind技术,实现程序开发与HTML界面设计的分离,使web开发更便利;另外,网站利用DataSource控件与GridView控件配合的灵活应用,使得对SQL数据源操纵与显示更加方便、快捷。本网站实际运行效果良好,有一定的推广应用价值。Aimed at development of intelligent street lamps' monitoring website,a set of website,which is based on Geographic Information System(GIS),was developed by using ASP.Net2.0.The website combines lamps' information database with city electronic map by GIS technology.Through the city electronic map,the lighting rate、illumination、power、current、alarm and Etc of street lamps' information were displayed timely and accurately.While,the website isolates program development from HTML interface design by using code--Besind technology of ASP.Net2.0,which is convenient for development of the website.In addition,flexible application of Data Source control and GridView control makes the SQL sources easy to be manipulated and displayed.The website actually runs well and offers certain value at application

Self-adaptive Evolutionary-programming Based on Three Layer Chromosome and Application

针对模糊辨识中规则数多少难以选择、输入量在各规则中重要程度难以确定以及模糊规则参数难以优化等问题,模拟生物基因之间相互联系的特点,用三阶染色体结构对完全模糊规则基进行描述。根据每代不同个体的适应度信息获得不同个体的变异率,采用自适应进化规划算法,实现模糊规则基各级染色体引导优化,克服了用试凑方法确定参数对辨识精度的消极影响,算法的复杂程度大大减小,为模糊建模提供了一种新颖的方案。通过对两类不同非线性系统的仿真,证明了此方法的有效性。A new method which imitates features of relating in biologys gene is proposed in the paper, and it can solve the problems of fuzzy identify in nonlinear system, such as difficulty in choosing number of rules, weight of input variable in different rules and difficult in optimizing parameters of fuzzy rule bases, etc. In the paper, a three layers chromosome is used to describe perfect rule bases. Different to old methods, an adaptive evolutionary algorithm is used to realize guiding optimum based on the fitness information of different individual. Moreover, the whole chromosome is optimized simultaneously. The new method remedies the bad effect of compromise proposal in identifying of old method and the given algorithm is simple. The effectiveness of the given method is demonstrated by simulations of different nonlinear systems.安徽省高等学校青年教师资助计划项目(2002jq148

Application of Correlogram of Oriented Gradient Algorithm in Human Action Recognition

针对人体动作的特征提取法,该文提出了基于方向梯度的相关图算法COrrElOgrAM Of OrIEnTEd grAdIEnT(COg),它是通过检查视频动作中的时间空间兴趣点和以兴趣点为中心的空间立方体,计算并提取空间立方体的时间空间方向梯度所具有的空间结构分布特性和外观信息,建立不同动作的特征模型,并用支持向量机(SVM)分类器来检验特征模型的识别准确率;最后,通过对比基于方向梯度的柱状图算法HISTOgrAM Of OrIEnTEd grAdIEnT(HOg),该文提出的COg算法的识别准确率比HOg算法高15%左右。This paper propose a novel feature description algorithm based on oriented gradient named as Correlogram of Oriented Gradient (COG),which is to detect the space-time interest points and describe the unique features around the detected points (cuboids),and compute the spatial temporal gradients of each cuboid taking advantage of both the spatial structure and appearance information.Then by building the recognition model for each action and utilizing the SVM classifier,we obtain the experimental results of COG which is 15% better than the Histogram of Oriented Gradient (HOG)

Design of air-condition intelligence electric-economized device

空调智能节电器是针对空调、冰柜等家用高能耗制冷设备而开发的新型节电器产品。它通过优化压缩机运行曲线,实现对空调、冰柜的节电控制。设计的空调智能节电器硬件由89S52处理器、瞬态型SC2272-M4遥控解码芯片、开关电源等部分组成;软件由初始化模块、键码采集、按键处理、参数保存、显示模块、压缩机控制模块等部分构成。该节电器可遥控设定节电率;并通过减少空调压缩机的启停次数,延长空调机的使用寿命;同时,采用小体积、低功耗的开关电源有效降低节电器自身耗电。该节电器经国家家用电器质量监督检验中心测试,节电率可达到15%-45%,市场应用前景广阔。The air-condition intelligence electric-economized device is a new type of energy saving product which is developed for high-energy consumed refrigeration equipments,such as air-conditioner device and icebox,in household. This device saves the energy through optimizing the compressor’s operating curve.Its hardware is made up of 89S52 processor,SC2272-M4 telecontrol decoding chip,switching power and so on,while the software is made up of initialization module,key code collection,key-press processing,parameters preservation,display module,and compressor control module.This device can be set the electricity-economized rate remotely.It can extend the life span of the air-condition by reducing the start-stop times of the compressors,and can effectively reduce the energy consuming of itself by using small and low-energy consumed switching power.Tested by the national household appliances’ quality supervision and inspection center,this device’s electricity-economized rate is 15%-45%,so it has a bright future of market application.福建省科技计划项目资助(No.2004J020)

The Application of Completion Port Technology for Road Lighting Control Software

针对大规模的路灯监控系统,设计了一套基于C/S模式的监控系统软件构架,并且应用完成端口通信技术,对监控系统的服务器进行网络通信优化,使其能够承载大量的客户端,提高了数据传输的高效性,可靠性。For Monitoring system for large-scale road lighting,designed a set control system software frame based on C/S mode,and the system for monitoring network communications servers is optimized by the application of completion port communication technology so that it can carry a large number of clients and improve the data transmission efficiency and reliability