当代社会的信息国防建设随想

信息国防建设与人民的生活水平息息相关,本文从信息的总体安全特征出发详细分析了现代信息社会特征对信息国防建设的影响,并从军事平衡角度为国家信息安全提出了战略性的分析与实施对策,目标是建立有序的信息安全实施体系。     

Construction-specific spatial information reasoning in Building Information Models

In recent years, there have been significant advances in modeling technology for object-oriented building products. However, the building models are still lacking of providing construction-specific spatial information required for construction planning. Consequently, construction planners visually analyze building product models and derive geometric characteristics such as bounded spaces and exterior perimeter to develop detailed construction plans. Such a process presents fragmented information flows, from building product information to construction planning, that rely on subjective decisions of construction planners. In order to overcome these drawbacks, this research proposes a geometric reasoning system that analyzes geometric information in building designs, derives the construction-specific spatial information, and uses the information to assist in construction planning. The scope of presented work includes detecting work packages formed by faces during construction, such as large work faces and bounded spaces, and using information in the work packages directly to support planning of selected indoor construction activities. The main features of the proposed system named Construction Spatial Information Reasoner (CSIR) include a set of relationship acquisition algorithms, building component relationship data structure, and interpretation of the relationship to support detailed construction activity planning. The relationship acquisition algorithms identify adjacency between building components that is stored in the relational data structure. Then, acquired adjacency relationships are transformed into a set of graphs that represent work packages. To implement the proposed approach, CSIR utilized a commercially-available Building Information Modeling (BIM) platform and the algorithms were imbedded to the BIM platform. For validation, CSIR was tested on a real commercial building. For interior ceiling grid installation activities, CSIR successfully detected existing work packages and analyzed the spatial characteristics impacting construction productivity. The major contribution of the presented research would be to enable a realistic analysis of building geometric condition that is not possible in current BIM and a seamless information flow from building product information to construction process plans. These can potentially reduce current manual and error-prone construction planning processes. Limitations and future research suggestions are also presented.     

Computer vision techniques for construction safety and health monitoring

For construction safety and health, continuous monitoring of unsafe conditions and action is essential in order to eliminate potential hazards in a timely manner. As a robust and automated means of field observation, computer vision techniques have been applied for the extraction of safety related information from site images and videos, and regarded as effective solutions complementary to current time-consuming and unreliable manual observational practices. Although some research efforts have been directed toward computer vision-based safety and health monitoring, its application in real practice remains premature due to a number of technical issues and research challenges in terms of reliability, accuracy, and applicability. This paper thus reviews previous attempts in construction applications from both technical and practical perspectives in order to understand the current status of computer vision techniques, which in turn suggests the direction of future research in the field of computer vision-based safety and health monitoring. Specifically, this paper categorizes previous studies into three groups—object detection, object tracking, and action recognition—based on types of information required to evaluate unsafe conditions and acts. The results demonstrate that major research challenges include comprehensive scene understanding, varying tracking accuracy by camera position, and action recognition of multiple equipment and workers. In addition, we identified several practical issues including a lack of task-specific and quantifiable metrics to evaluate the extracted information in safety context, technical obstacles due to dynamic conditions at construction sites and privacy issues. These challenges indicate a need for further research in these areas. Accordingly, this paper provides researchers insights into advancing knowledge and techniques for computer vision-based safety and health monitoring, and offers fresh opportunities and considerations to practitioners in understanding and adopting the techniques.     

高校计算机公共机房建设及管理

针对目前高校计算机实验室建设的实际情况。从不同角度提出高校计算机机房建设方案。并从多方面探讨了如何管理维护高校机房的方法。提出了提高计算机机房管理维护效率的方法。     

高校数字档案馆信息安全保障体系建设研究

数字档案馆建设是数字校园建设的重要内容,也是高校档案事业发展水平的重要标志。但随着高校档案数字化和信息化的迅速发展,数字档案馆信息安全保障问题已成为高校档案界关注的热点,文章通过分析和研究高校数字档案馆信息安全保障体系建设及内容,并提出相应研究对策,对促进高校档案事业的发展具重要现实意义。     

中小企业信息化建设中网络人才培养的探索

围绕中小企业经营及管理业务的内容,设计并提出一套整合业务知识的高职计算机网络技术专业人才培养模式,并从岗位出发,基于学生特点制定适合每一个学生的技能训练方案,对中小企业推进信息化建设所需网络人才的培养进行了积极的探索与研究。     

《网络安全》实训教学探索

以省级精品课程《网络安全》课程为例,阐述《网络安全》课程实训教学建设的基本思路,着重探讨课程建设与公安实战一线相融合的经验和取得的成果。     

浅谈网络中心机房建设与管理

随着社会经济发展的步伐越来越快,信息技术在不断发展壮大,同时网络中心机房的建设规模愈来愈大,对软件和硬件的配置要求也越来越高,但是机房建设以及管理技术的应用却达不到时代发展的要求,故此,为针对网络信息的灵动性与经济性的特点,机房的建设与管理就显得格外重要。本文将对网络中心机房的建设与管理进行分析探讨,为信息技术基础建设提供参考信息。     

高校图书馆特色数据库建设的现状、问题与对策研究

个性化服务是图书馆的发展方向,提高特色资源,提高特色服务是图书馆的重要途径。随网络数字化的发展,图书馆的特色化更是生存和发展的要求。本文主要介绍了现在高校图书馆的特色数据库建设的现状和问题。以及提出了对图书馆的特设数据库发展提出了建设性对策。     

电子政务网的安全设计浅析

电子政务网络的安全是电子政务正常运行的保障,也是推进电子政务发展的切实需要。基于互联网的电子政务建设模式中,互联网既要作为政务办公网络互联与接入平台,又要作为提供公共服务的网络平台,故电子政务网络安全建设需考虑不同安全层次、不同部门的大规模、复杂交互应用,以确保信息的机密性、真实性、可用性和可控性。文中分析了电子政务网的安全体系,并简单探讨了电子政务网络安全体系的设计实现,为电子政务网的安全体系建设提供了一定的参考。