摘要
工程项目实施状态的即时分辨与判定问题给大型建筑工程项目实施状态诊断系统实现全过程持续性的自动分析与诊断带来不利影响。文章通过对大型建筑工程项目异态表象的数理分析与描述,发现了信息增益和欧式范数与系统状态变化的内在关系。基于李雅普诺夫系统状态稳定理论,提出了信息增益前提下基于欧式范数的工程项目实施状态即时分辨与判定方法。利用Matlab进行了仿真试验,给出了范数分别为1.000、1.414和1.732情态下采用欧式范数法对工程项目系统状态进行即时分辨与判定的检测效果。在此基础上,工程实验结果证明,该方法可以满足大型建筑工程项目实施状态即时分辨与判定管理要求,且1.732可作为辨识和判定工程项目实施状态变化的有效阈值。
The problem of instant identification and judgment on the implementation state of engineering project brings disadvantage to continuous automatic analysis and diagnosis of the large-scale construction project implementation state diagnosis system.In order to solve the problem,the abnormal representation of large-scale construction project is analyzed and described in mathematics and the inner relationship among information gain,Euclidean norm and systematic state change is found.Then,according to Lyapunov system stability theory,a new method of instant identification and judgment on the engineering project implementation state based on Euclidean norm is put forward under the premise of information gain.Through the simulation test by Matlab,the test effects of instant identification and judgment on the engineering project system states when the norm is1.000,1.414and1.732are obtained respectively.Finally,it is proved by engineering experiments that this new method can meet the application requirements and1.732is a key threshold in the aspect of instant identification and judgment on the engineering project implementation state change.
作者
王毅
侯学良
薛靖国
WANG Yi;HOU Xueliang;XUE Jingguo(Institute of Engineering Technology and Management, North China Electric Power University, Beijing 102206, China)
出处
《合肥工业大学学报（自然科学版）》
CAS
北大核心
2018年第12期1705-1709,1728,共6页
Journal of Hefei University of Technology：Natural Science
基金
国家自然科学基金资助项目(71171081)
北京市自然科学基金资助项目(9162014)
关键词
工程项目
实施状态
即时分辨
判定阈值
欧式范数
engineering project
implementation state
instant identification
determination threshold
Euclidean norm
