Research And Development Of Taizhou Construction Safety Accident Analysis And Diagnosis System Based On CBR

In recent years,with the continuous improvement of people’s demand for a better life,China’s engineering construction has ushered in a new round of climax.However,with the vigorous development of the construction industry,construction safety accidents occur frequently,which poses a serious threat to the life safety and public interests of employees.In order to systematically study the characteristics of construction safety accidents,this study applies the case-based reasoning theory in the artificial field to the construction field,carries out structured storage and information management of construction safety accident knowledge,draws lessons from the experience of accident case handling,and provides new ideas for construction safety accident control.Therefore,according to the characteristics of construction safety accident text cases,this paper constructs a construction safety accident analysis model based on CBR(case-based reasoning).Firstly,this study starts with the disaster causing factors of construction safety accidents,and summarizes and arranges them in combination with the case text.Based on the literature review,the attribute index system is extracted,and the frame method is used to structurally represent the cases,so as to construct the construction safety accident case base.Further,the case-based reasoning model based on nearest neighbor algorithm is designed,and the local similarity and global similarity are calculated according to the case feature indexes.In addition,for the target case to be studied,the nearest neighbor rule is used to retrieve the historical case most similar to the new case,and the case is corrected in combination with the actual situation of the new case,so as to obtain the reference experience of the new problem.Finally,this study carried out empirical analysis,collected and combed the construction safety accident cases in Taizhou from 2013 to 2021,sorted out more than 80 construction safety accidents according to the extracted attribute indicators,and formed the case base of this study.Based on the constructed CBR reasoning model,case retrieval matching is carried out,and relevant retrieval systems are designed,including system operation process and function,database and interface design,so as to be better applied in practice,so as to make better scientific and information utilization of case knowledge of construction safety accidents,and play a role in pre retrieval,early warning and emergency control of construction safety accidents,The role of accurate post-processing.This research and development system can effectively analyze the law of construction safety accidents,and provide theoretical reference and practical guidance for safety production management.