优化运行理论在泵站综合自动化系统中的应用

利用改进的神经元网络构建了泵站流量以及效率预测模型，并利用改进的遗传算法构建了泵站优化模型。将这两个模型应用到泵站综合自动化系统中，可以完成对泵站流量及效率的准确预测，并在此基础上实现泵站的优化运行。讨论了泵站优化运行理论在泵站综合自动化系统中应用的步骤和方法。     

基于PLC技术的自动化灌溉施肥系统的设计

随着我国农业科技的发展,滴灌施肥智能化控制技术越来越引起人们的关注,成为未来优质高效设施农业的发展趋势。为此,通过市场调研,采用PLC控制技术,进行了自动化灌溉施肥系统的设计开发;通过性能测试,实验取得了较好的效果,为将PLC技术引入到灌溉施肥控制系统的后续研究提供了借鉴。     

Path tracking in forest terrain by an autonomous forwarder

Abstract

Autonomous navigation in forest terrain, where operation paths are rarely straight or flat and obstacles are common, is challenging. This paper evaluates a system designed to autonomously follow previously demonstrated paths in a forest environment without loading/unloading timber, a pre-step in the development of fully autonomous forwarders. The system consisted of a forwarder equipped with a high-precision global positioning system to measure the vehicle's heading and position. A gyro was used to compensate for the influence of the vehicle's roll and pitch. On an ordinary clear-cut forest area with numerous stumps, the vehicle was able to follow two different tracks, three times each at a speed of 1 m s^?1, with a mean path tracking error of 6 and 7 cm, respectively. The error never exceeded 35 cm, and in 90% of the observations it was less than 14 and 15 cm, respectively. This accuracy is well within the necessary tolerance for forestry operations. In fact, a human operator would probably have a hard time following the track more accurately. Hence, the developed systems function satisfactorily when using previously demonstrated paths. However, further research on planning new paths in unknown unstructured terrain and on loading/unloading is required before timber transports can be fully automated.     

库鄯输油管道自动化系统

介绍了库鄯输油管道的ＳＣＡＤＡ系统的配置以及该系统所彩和的ＯＡＳＹＳ５．２系统软件的结构，特点与应用，ＯＡＳＹＳ５．２５系统具有良好的界面，能很好地与其它软件兼容。应用该系统可实现全线的启停高度自动化，在自动化管理方面达到了世界管道的先进水平。     

面向对象技术在CIMS系统设计中的应用研究

通过分析ＣＩＭＳ传统设计方法在自动化系统中的某些不足，引入面向对象（Ｏ－Ｏ）技术的基本概念并给出了基本的面向对象设计规则，设计了ＺＮ－ＣＩＭＳ自动化分系统的面向对象系统框架，并讨论了其优点。     

图书馆自动化系统与校园网建设

概述了图书馆自动化系统与校园网建设的关系，并结合本院图书馆的实际情况，介绍了图书馆自动化接入校园网后所能提供的服务内容以及管理方式。     

办公自动化下的档案信息管理

办公自动化和管理信息化大大提高了办公效率,为取得更好的经济效益创造了更为积极的外部环境。同时,大量的电子文件开始代替传统的纸质文件,这种变革正冲击着整个档案工作体系。如何加强和改进变革中的档案信息管理工作,是档案工作者共同追求的目标之一。     

Office Automation System for the University

The solution of the office automation system for the universities is given. The detail steps on developing an office automation system through Lotus Notes are described.     

Fault Section Diagnosis Algorithm of Distribution Networks Based On Topology Identification

An algorithm of fault section diagnosis based on topology identification for distribution networks is presented. By decomposing the topologic matrix which describing the distribution network into two parts,one part only contain the complex coupling factor ,and the other ignore the complex coupling factor. Using this method, the fault zones in distribution network can be identified and isolated efficiently, and the vertexes of the zones can also be identified automatically. This approach adapts to the changefully network structures.     

Fault Detection Techniques for Feeder Automation

Fault detection of the distribution systems is one of the key techniques for feeder automation. At all times, it is still very difficult for the exact detection of single phase to ground fault. First of all, the distinguishing rules of the faulted phase are presented when ground fault occurs in distribution systems. This paper analyzes the fault detection technique for single phase to ground in system with floating neutral point. Based on faulted phase's current, a method realizing ground fault protection is proposed and the algorithm model of action criterion is given out. The simulation results show that the method will be with very good selectivity to ground fault, and it can be used preferably in feeder automation. The detection method for short circuit fault is also introduced simply.