Improved VUI system based on maintenance device

At present, the related information is obtained mainly through the on-site access to maintenance manual and technical manual during the aircraft maintenance. By using the traditional method, not only is it more likely to lost some information, but also it cost a lot of time and the maintenance efficiency is very low. This situation offers a good opportunity for appearance of voice user interface (VUI). Considering the application environment of VUI, this paper design an improved VUI based on maintenance device, which consist of the speech recognition system, the menu system and module update system. In this paper, the maintenance manuals and other technical data is transformed into electronic documents and the corresponding menu options through the professional analysis and arrangement. The electronic documents are stored in the backend server. By introducing VUI and speech recognition technology, applying the VUI as the human-computer interaction interfaces and speech recognition as the human-computer interaction way, the system can automatically choose corresponding menu according to the speech broadcast. It makes input not just confined to the operation by hand and provides “hands-free” services for export, which greatly increase the maintenance efficiency. Finally, compared with the traditional VUI, the improved VUI can constantly update the HMM model and can rapidly adapt to different kinds of environment, so that the recognition rate and anti-noise capability is increased.