Design And Implementation Of Civil Aviation Information Acquisition System

The rapid development of the Internet and the explosive growth of information provide rich competitive intelligence and technical intelligence sources for enterprises,and at the same time due to a huge amount of information,the traditional manual acquisitionmode has encountered unprecedented challenges.The civil aircraft manufacturing is typical technical complexity engineering,and some international civil aircraft giants,such as Boeing,Airbus,etc.,give great importance to information gathering.Based on the information service platform of a company,this paper establishes a sub-acquisition system for timely access and analysis of aeronautical information in Internet environment.This paper mainly includes three sections:(1)In the aspect of technical investigations,the main technique and method for building an information acquisition system are researched,including metadata description of web information,web information extraction technique,webpage duplicate checking technique,etc.The research emphasis is put on Bloom Filter,which is popular at present and is significantly optimized in acquisition speed and data filtering.Finally,the integration test method of the system is researched.(2)During demand analysis phase,the demand on technical information collection of the company is analyzed,the information acquisition sources are classified into periodical site source and news site source according to acquisition demands of the company on technical intelligence and competitive intelligence,and then two acquisition modes,i.e.directed tracking and topic tracking,are summarized.(3)During design and implementation phase,the overall architecture of the information acquisition system is designed,and the specific implementation method of the main subsystem is analyzed concretely,including information storage mode,web crawler framework and workflow,directed acquisition and analysis tool,topic acquisition and analysis tool,etc.At the same time,for the features of information in civil aviation field,this system supports metadata with information customization and multi-engined automatic retrieval,and supports topic tracking and regular retrieval of information sites,which effectively improves the coverage and accuracy of information retrieval.This system has been put into service.The implementation of this system enhances the competitiveness of company employees and achieved good results.