Use of a dark object concept and support vector machines to automate forest cover change analysis

An automated method was developed for mapping forest cover change using satellite remote sensing data sets. This multi-temporal classification method consists of a training data automation (TDA) procedure and uses the advanced support vector machines (SVM) algorithm. The TDA procedure automatically generates training data using input satellite images and existing land cover products. The derived high quality training data allow the SVM to produce reliable forest cover change products. This approach was tested in 19 study areas selected from major forest biomes across the globe. In each area a forest cover change map was produced using a pair of Landsat images acquired around 1990 and 2000. High resolution IKONOS images and independently developed reference data sets were available for evaluating the derived change products in 7 of those areas. The overall accuracy values were over 90% for 5 areas, and were 89.4% and 89.6% for the remaining two areas. The user's and producer's accuracies of the forest loss class were over 80% for all 7 study areas, demonstrating that this method is especially effective for mapping major disturbances with low commission errors. IKONOS images were also available in the remaining 12 study areas but they were either located in non-forest areas or in forest areas that did not experience forest cover change between 1990 and 2000. For those areas the IKONOS images were used to assist visual interpretation of the Landsat images in assessing the derived change products. This visual assessment revealed that for most of those areas the derived change products likely were as reliable as those in the 7 areas where accuracy assessment was conducted. The results also suggest that images acquired during leaf-off seasons should not be used in forest cover change analysis in areas where deciduous forests exist. Being highly automatic and with demonstrated capability to produce reliable change products, the TDA-SVM method should be especially useful for quantifying forest cover change over large areas.     

数字多媒体处理器TMS320DM355启动分析

分析了TI公司的TMS320DM355的启动方式和NAND启动流程,使开发者能够根据实际需求改动DVSDK中的UBL与编译U-Boot,并排除开发过程中出现的错误。使开发者通过各种方式下载操作系统内核映像至DM355的Flsah,并建立NFS文件系统,从而建立一个完整的开发环境。     

Decision support aids with anthropomorphic characteristics influence trust and performance in younger and older adults

This study examined the use of deliberately anthropomorphic automation on younger and older adults' trust, dependence and performance on a diabetes decision-making task. Research with anthropomorphic interface agents has shown mixed effects in judgments of preferences but has rarely examined effects on performance. Meanwhile, research in automation has shown some forms of anthropomorphism (e.g. etiquette) have effects on trust and dependence on automation. Participants answered diabetes questions with no-aid, a non-anthropomorphic aid or an anthropomorphised aid. Trust and dependence in the aid was measured. A minimally anthropomorphic aide primarily affected younger adults' trust in the aid. Dependence, however, for both age groups was influenced by the anthropomorphic aid. Automation that deliberately embodies person-like characteristics can influence trust and dependence on reasonably reliable automation. However, further research is necessary to better understand the specific aspects of the aid that affect different age groups. Automation that embodies human-like characteristics may be useful in situations where there is under-utilisation of reasonably reliable aids by enhancing trust and dependence in that aid. Practitioner Summary: The design of decision-support aids on consumer devices (e.g. smartphones) may influence the level of trust that users place in that system and their amount of use. This study is the first step in articulating how the design of aids may influence user's trust and use of such systems.     

提高立体仓库自动化水平的Flexsim仿真

以自动化立体仓库的现有设备为基础,提出一些可以提高立体仓库自动化水平的优化措施,在满足正常生产需求的条件下达到了减少仓储储位10%的核心目标.Flexsim仿真模型的运行结果表明:采用优化措施之后比当前运作情况下的单体包仓库最大利用率提高12.36%,多体包仓库平均利用率提高5.32%,整板仓库平均利用率提高1.27%,且工厂对安全存货的需求不受影响.     

军用办公自动化系统的优化设计与安全

办公自动化是部队日常工作管理信息化建设的基础，对部队管理及信息化建设具有重要的作用。实现数字化办公必须要有良好的技术支撑，针对办公自动化系统的Web应用中基于高层数据接口（active data object，ADO）的数据库访问技术提出了优化方案，以及对数据库设计提出了优化方案，也为提升系统安全提出了解决方案。     

运用MapX的显控台设计与实现

在分析显控台功能需求的基础上，提出了一种基于MapX的显控台实现方法．该方法能较好地实现地图显示功能、目标航迹显示和人机交互界面的显示．该显控台具有结构简单，功能强大，运行效率高等特点，较好地满足了指挥自动化系统显控台的功能需求．     

电气和自动化在工程实践中的相互交融

从技术的发展趋势论述了电气与自动化在工程实践中的关系,指出电气与自动化将互相嵌入、完全融合为一体,工程实践活动将紧密围绕整个系统所体现的电气的智能化、自动控制的彻底分散化、网络的扁平化和开放化而进行.     

过程自动化中系统建模及自适应理论的应用

集过程实时监测、系统建模、优化和控制等各层次功能于一体的工业生产过程自动化成为工业界的关注热点之一．从系统建模入手,分析了数学建模的过程及其在冶金领域的应用,由此引出自适应控制系统在工业领域的应用和发展,以显示了这种方法在流程工业自动化中的良好前景．     

CAPP系统中图形控件的设计与实现

提出一种采用控件方式设计CAPP(computeraidedprocessplanning)系统的方法,该控件底层引用Auto CAD的自动化对象,直接调用AutoCAD的DWG数据,用该方法构造的控件容易与CAPP中的属性数据进行连接,实现双向查询与操作.