基于专家系统的汽车衡故障传感器判别

传感器是自动化设备的核心部件,传感器故障检测显得尤为重要。针对目前汽车衡维护、检修的困难,为有效准确判断故障传感器,提出了以径向基函数神经网络（RBFNN）预估值的初始化数据库专家系统判别方法。经现场测试准确率达到96%以上,从而有效简单地判定传感器好坏和识别故障传感器的位置。     

Optimizing truck sequencing and truck dock assignment in a cross docking system

Cross docking plays a very importation role in supply chain management. The efficiency of cross docking will influence the lead time, inventory level and response time to the customer. This research aims to improve the efficiency of multi-door cross docking by optimizing both inbound and outbound truck sequencing and both inbound and outbound truck dock assignment. The objective is to minimize the makespan. The problem is new in the literature and no previous formulation of the problem can be found. In order to optimize the problem, a model for calculating the makespan is proposed. When given a sequence of all inbound and outbound trucks, the calculation model can assign all inbound and outbound trucks to all inbound and outbound doors based on first come first served and then calculate the makespan. The proposed makespan calculation model is then integrated with a variable neighborhood search (VNS) which can optimize the sequence of all inbound and outbound trucks. Four simulated Annealing (SA) algorithms are adopted for comparison. The experimental results show the proposed VNS provides 8.23–40.97% improvement over the solution generated randomly. Although it does not provide the best result for all problems when compared with SA algorithms, it provides robust results within a reasonable time. Thus the proposed method is efficient and effective in solving cross docking operation problems.     

Agent-oriented modeling and development of a system for crisis management

The management of crisis situations has been a challenging problem from different points of views, such as communication efficiency and avoiding casualties. This paper presents a novel approach that includes an interaction organization pattern for Multi-agent Systems (MASs) in crisis management, abstracted from several existing case studies in which the agents follow a sequence of interactions and the organization must optimize the use of human resources. The pattern considers an emergent organization of peers that adopt different roles according to the circumstances. The key features of the organization are its robustness, scalability (in terms of both agents and roles), flexibility to deal with a changing environment, and the efficient use of resources. In order to validate the organization, the paper presents its modeling and development with the Ingenias methodology, conforming the corresponding MAS. This development follows a model-driven approach, which allows a smooth transition from the specification to the code, and a low-cost testing of the system with different settings. Another key aspect is the application of metrics for validating and improving the MAS in terms of response time. The MAS has been tested with 600 agents representing 200 citizens, showing its performance.     

Digital control of a rotary dryer in the sugar industry

In order to utilize pulp, which is a by-product of the extraction of sugar from beet, one has to dry it. This is usually done with a rotary dryer. Generally the dry substance percentage of the dried pulp is controlled manually; this, however, is not sufficient. The aim was to improve the quality of control and thereby to reduce the fuel consumption. To reach this goal, first a linear, time-invariant, discrete-time mathematical model of the dynamic behaviour of the drying process was identified off-line. A correlation analysis method with least-squares parameter estimation was used. Based on the identified model, the parameters of the control algorithms of a digital multicascaded control system were designed with computer aid. The control behaviour was simulated and compared with the control behaviour achieved by an optimal state feedback control system. Although the latter one gave a better control performance, the cascaded control system was implemented on a process control computer—this was done for practical reasons. The results and experience gained during three campaigns show that the goal, a significant improvement of the control performance and the resulting saving in fuel oil, was achieved.     

模具企业订单文档管理系统的实现

分析我国模具企业的业务流程以及生产过程中存在的问题,提出基于订单和产品的管理系统模型,并根据此模型实现了订单文档管理系统。系统管理模具从订单到交货的整个生命周期,缩短了产品设计周期,提高了产品质量,增强了企业竞争力。     

FCS系统在蔗糖行业中的应用

针对广西蔗糖业的巨大前景,为了提高总体技术水平,缩小与发达国家和国际先进水平的差距,对该行业的一些关键工段进行自动化控制是目前能够实现也完全能达到国际水平的。通过FCS2000现场总线控制系统在广西蔗糖业的成功应用,反映了国产FCS2000现场总线控制系统的系统功能的实用性和稳定性,实现了对蔗糖生产中蔗渣燃烧锅炉及其相关的自动控制,提高了管理水平和自动化程度,降低了单位能耗,节约了资源。为广西蔗糖业的发展贡献了一份力量。     

The use of ethnography and grounded theory in the development of a management information system

This work presents new evidence on how ethnography and the grounded theory approach can be integrated within a participatory information system development process. We conducted an ethnography in a hospital unit, collecting data from observations, interviews, and documents. The discussion about emergent themes with the actors in their natural context and the development of a grounded model allowed us to identify widespread discomfort felt by personnel and to code it as process conflict, that is a particular type of conflict caused by inefficiencies in the organization of work activities. The grounded model was the starting point for conducting a series of focus groups during which the organizational actors were allowed to face process conflict while defining the requirements of a new management information system. We conclude with a discussion of the implications of our study for IS researchers and practitioners.     

计算机网络控制系统在大型糖厂的开发应用

计算机网络控制系统在糖厂的应用大刚刚开始，针对糖厂生产的特殊性，本文结合国外某大型糖厂的设计实践，就计算机网络控制系统中方案的选择和系统的组成，谈谈自己设计中的体会和看法。     

毕业环节教学管理系统的开发

本科毕业环节是高等学校人才培养方案中最重要的实践教学环节之一,对提高人才培养质量意义十分重要.本文分析在高等教育大众化背景下毕业设计教学环节的现状;制定教学改革措施;将信息管理和计算机技术引入毕业环节教学工作中,基于Microsoft.Net平台,采用Visual Studio 2005为开发工具,开发了一套毕业环节教学管理系统.重点介绍该教学管理信息系统的设计思想、系统框架和主要功能.其开发和应用将增强毕业环节教学管理的信息化程度,教学水平显著提高,并可以向学院推广.     

压力表信息管理系统的开发和应用

根据压力表信息管理网络化的需要,应用Visual Basic6.0作为前台开发工具和SOL Server2000作为后台数据库,采用C/S模式,开发了1套压力表信息管理系统.该软件具有登录,压力表信息统计,压力表检定记录信息统计,修改、删除、浏览、排序、多功能查询、打印、输出到Excel表、数据库备份与恢复、权限设置等功能模块,采用计算机网络设计,因此它可实现一系列增强型的功能,支持多用户远程进行数据操作和查询,并且具有数据录入快速,准确,数据库冗余小,备份恢复方便,数据管理统一,安全,完整,用户界面友好,使用方便等优点.由于该软件中压力表信息能随时间进行自动更新,及时直观提醒相关操作人员各压力表的动态信息,时效性强,和传统的纸质文档以及Excel电子文档管理压力表信息相比,无需操作人员去现场巡检或翻阅大量的纸质及电子文档,节省了劳动力,提高了工作效率,提升了管理水平.     

The development of a general Internet attitudes scale

The popularity of Internet use has generated a need for reliable and valid Internet attitude assessments. Current practices in the development and validation of Internet attitude scales have raised several methodological and practical issues. The purpose of this study was to develop general Internet attitudes measure as well as to explore the psychometric and methodological concerns surrounding the construct validity of existing Internet attitude scales. A three-study sequence was conducted that included the development and refinement of the Attitudes Towards the Internet Scale (ATIS), an investigation of differences between Internet and paper-and-pencil administrations, and differential item and person functioning. The ATIS demonstrated appropriate psychometric qualities and is suitable for general use. Suggestions for future researchers and practitioners interested in the assessment of Internet attitudes are provided.     

An intelligent management system for the development of a regional transport logistics infrastructure

This paper presents an intelligent management system realized on the basis of ontologies and formalized expert knowledge, mathematical models and numerical methods. We introduce a complex approach to the analysis of transport logistics systems using an original concept of multilevel modeling. The constructed mathematical models and software modules integrated in the system are described in brief. Modern intellectualization tools are applied for providing interaction among different modules and processing of incomplete statistical data. And finally, we consider some test and applied problems and their solution by the system.     

建立基于Web的认证管理系统

主要阐述了如何建立基于Web的认证管理系统。通过中化阳光认证中心网站的建设,提出了认证管理网站建设的思路。在实施过程中,充分利用信息技术的成果,建立了后台数据库支持的信息发布系统和信息反馈系统,为建立适合中国国情的认证管理系统进行了有益的尝试。     

基于化工仿真培训器专家评分系统的研究和开发

讨论了仿真培训专家评分系统的设计及实现。介绍了仿真培训系统评分方法的结构和实现方法,在现有基础上开发了的专家评分系统,并较详细的论述了专家评分系统的结构和功能。在装置的培训过程中该专家评分系统能够记录操作失误并提出建议,该系统的知识库可以根据不足及时获取知识,不断增加诊断能力,满足了工厂对工人培训和提高技能的需求。     

A Decision Support System for a small scale industry in a developing country

This paper describes the design and development of a Decision Support System (DSS) for a small scale manufacturing company in a developing country. The DSS provides a solution for an integrated problem of planning, shopfloor scheduling, and control. The DSS system accepts the demand data with priorities, then uses the information from the imbedded data base system regarding product structure, production process, available resources with the status, and inventory. This in turn is used by the imbedded models to solve planning and scheduling problems, and provide solutions containing job order release, shopfloor scheduling and material requirement report. What if analysis feature provided by DSS allows the managers to incorporate their knowledge and experience to improve the quality of the solution by evaluating different scenarios presented by the manager. The laboratory equipment manufactured by the company is made to order. Product information regarding twenty-two high demand items is incorporated into the data base system, and the scheduling problem is solved for these items. The jobshop is a mixed shop problem containing a flow shop, an open shop, and a flow shop. A heuristic method used for solving this problem is presented.     

Agent-based intelligent system development for decision support in chemical process industry

This paper presents an agent-based intelligent system to support coordinate manufacturing execution and decision-making in chemical process industry. A multi-agent system (MAS) framework is developed to provide a flexible infrastructure for the integration of chemical process information and process models. The system comprise of a process knowledge base and a group of functional agents. Agents in the system can communicate and cooperate with each other to exchange and share information, and to achieve timely decisions in dealing with various scenarios in process operations and manufacturing management. Process simulation, artificial intelligent technique, rule-based decision supports are integrated in this system for process analysis, process monitoring, process performance prediction and operation suggestion. The implementation of this agent-based system was illustrated with two case studies, including one application in process monitoring and process performance prediction for a chemical process and one application in de-bottlenecking of a site utility system.     

大规模视频监控系统网管子系统的设计与实现

为保证大规模网络视频监控系统能够稳定、可靠地运行,设计了大规模视频监控系统的网络管理子系统.介绍了网络管理子系统在大规模视频监控业务服务系统中的作用,并提出了用于管理大规模视频监控系统的特定管理信息集,分别阐述了基于简单网络管理协议(SNMP)的视频监控系统网络管理站和网络管理代理的设计和实现,在中国下一代互联网示范项目(CNGI)网络上提供了该系统的示范应用,证明了该方案的可行性.     

A strategic decision support system for supply network design and management in the semiconductor industry

This paper presents a strategic decision support system (DSS) which has been conceptualized and designed by SEMATECH^* to assist the large semiconductor manufacturing organization in managing its extensive supply chain network. This DSS has been named “Manufacturing Enterprise Model” or “MEM”. MEM ties each factory and its primary metrics to the rest of the business enterprise to assess how changes in wafer fabrication affect other factories, the distribution system, and customer deliveries. The model is intended to be used to evaluate future factory concepts and to assist business planners in strategic decisions about product allocation and major resource/facility planning.     

影子价格在露天矿卡车调度系统中的应用研究

提出了线性规划的对偶问题,在影子价格基本理论的基础上,阐述了影子价格的经济含义与计算过程。结合具体实例阐述了如何运用影子价格理论指导企业经营管理,从而提高企业的经济效益。