关键词: 工业监测, 图形用户界面, 构件库, Qt/E, 实时性, 多线程, 跨平台

Abstract: Aiming at problems of embedded Industry Monitoring System (IMS) Graphic User Interface (GUI), such as large occupation space, poor configuration ability and low real-time performance, a kind of embedded IMS-GUI components library realization method based on Qt/E was brought forward. The fundamental characteristics of industrial monitoring technology were analyzed, and the Qt/E basic library was cut out according to requirement of IMS. Using multi-threaded technology, system concurrent processing ability for data collection, analysis and display was enhanced, and real-time performance and rapidity were guaranteed. By internal communication interface of Qt, the message mapping mechanism without requiring call-back function was realized, context switch speed was improved, and GUI development process would become simple. GUI shared components library oriented to IMS was developed, which was aimed to resolve the cross-platform applicability problem and it could be configured and cut for special demand of users. Industrial experiments proved that GUI developed by the components library had small occupation space and high real-time performance, It could operate smoothly in the embedded platform environment such as Linux and uCOS, and provided powerful technical support for the interaction of IMS.

Key words: industry monitoring, graphic user interface, components library, Qt/E, real-time performance, multi-thread, cross-platform