基于案例推理和词移距离的复杂产品装配现场技术问题管控方法

On-site technical problem in complex product assembly process affects the assembly quality and efficiency directly. Aiming at the problems of the traditional control strategies' lacking proactivity and predictability, an on-site technical problem control method of assembly process using Case-Based Reasoning (CBR) and Word Mover's Distance (WMD) was proposed. Through the integration of the workflow between assembly process planning and workshop operation, the data fusion of historical assembly processes and on-site technical problems was realized, and the case was constructed. On this basis, CBR technique was used to find the potential problems in the new process. To characterize the semantic similarity between the text content, the improved WMD was used. The effectiveness and accuracy of the method were verified by an example, and the on-site technical problem control system applied in a satellite assembly enterprise was developed. The research provided a new method for the on-site technical problem control of complex product assembly process.