To realize the real-time and transparent management and control of railway freight car maintenance work-shop,and to improve the informatization and intelligence level of workshop management,a six-dimensional model of digital twin maintenance workshop was proposed based on digital twin technology,the core functions and develop-ment process of the system were introduced,and the whole element accurate modeling process such as data acquisi-tion and exchange,three-dimensional visual scene construction and inspected object generation were described in de-tail.Based on the data acquisition and exchange method of distributed MQTT architecture,the state matrix of multi-source heterogeneous data flow nodes was established,and the data was exchanged with the workshop man-agement and control system by using embedded equipment,acquisition card,sensor and logic controller.Combined with the dynamic model of the whole maintenance process of equipment,materials and production line in the mainte-nance workshop,the digital twin system of maintenance workshop with virtual real interactive mapping was con-structed.Through the technical output of coupler knuckle maintenance tracking and maintenance process Gantt chart based on data mining,the application scenario of digital twin key technology in coupler knuckle intelligent mainte-nance was displayed,which verified the effectiveness of the proposed method,and provided a reference for the appli-cation of digital twin in intelligent rail transit.
关键词
数字孪生/检修车间/实时信息/铁路货车
Key words
digital twin/maintenance workshop/real-time information/railway wagon
维普
万方数据