为解决各级医疗机构楼宇自控系统中不同环境下温度监测布线困难、维护不易的缺点,设计了一种基于ANT协议的无线温度采集网络。方案采用STC12LE4052AD微处理器、NRF24AP2无线网络模块和单总线数字温度传感器DS18820等搭建硬件平台,并用Vi...为解决各级医疗机构楼宇自控系统中不同环境下温度监测布线困难、维护不易的缺点,设计了一种基于ANT协议的无线温度采集网络。方案采用STC12LE4052AD微处理器、NRF24AP2无线网络模块和单总线数字温度传感器DS18820等搭建硬件平台,并用Visual Studio 2010 C++编写温度监测软件实时显示温度和采集记录温度。试验表明,该网络运行稳定,采集环境温度准确,具有低能耗、低成本和易组网等优点。展开更多
Due to the narrow space and complex structure of spacecraft cabin, the existing asssembly systems can not well suit for the assembly process of cabin products. This paper aims to introduce an assembly auxiliary system...Due to the narrow space and complex structure of spacecraft cabin, the existing asssembly systems can not well suit for the assembly process of cabin products. This paper aims to introduce an assembly auxiliary system for cabin products. A hierarchical-classification method is proposed to re-adjust the initial assembly relationship of cabin into a new hierarchical structure for efficient assembly planning. An improved ant colony algorithm based on three assembly principles is established for searching a optimizational assembly sequence of cabin parts. A mixed reality assembly environment is constructed with enhanced inforamtion to promote interaction efficiency of assembly training and guidance. Based on the machine vision technology, the inspection of left redundant objects and measurement of parts distance in inner cabin are efficiently performed. The proposed system has been applied to the assembly work of a spacecraft cabin with 107 parts, which includes cabin assembly planning, assembly training and assembly quality inspection. The application result indicates that the proposed system can be an effective assistant tool to cabin assembly works and provide an intuitive and real assembly experience for workers. This paper presents an assembly auxiliary system for spacecraft cabin products, which can provide technical support to the spacecraft cabin assembly industry.展开更多
文摘为解决各级医疗机构楼宇自控系统中不同环境下温度监测布线困难、维护不易的缺点,设计了一种基于ANT协议的无线温度采集网络。方案采用STC12LE4052AD微处理器、NRF24AP2无线网络模块和单总线数字温度传感器DS18820等搭建硬件平台,并用Visual Studio 2010 C++编写温度监测软件实时显示温度和采集记录温度。试验表明,该网络运行稳定,采集环境温度准确,具有低能耗、低成本和易组网等优点。
基金Supported by National Basic Research Project of China for the 12th Five-year Plan
文摘Due to the narrow space and complex structure of spacecraft cabin, the existing asssembly systems can not well suit for the assembly process of cabin products. This paper aims to introduce an assembly auxiliary system for cabin products. A hierarchical-classification method is proposed to re-adjust the initial assembly relationship of cabin into a new hierarchical structure for efficient assembly planning. An improved ant colony algorithm based on three assembly principles is established for searching a optimizational assembly sequence of cabin parts. A mixed reality assembly environment is constructed with enhanced inforamtion to promote interaction efficiency of assembly training and guidance. Based on the machine vision technology, the inspection of left redundant objects and measurement of parts distance in inner cabin are efficiently performed. The proposed system has been applied to the assembly work of a spacecraft cabin with 107 parts, which includes cabin assembly planning, assembly training and assembly quality inspection. The application result indicates that the proposed system can be an effective assistant tool to cabin assembly works and provide an intuitive and real assembly experience for workers. This paper presents an assembly auxiliary system for spacecraft cabin products, which can provide technical support to the spacecraft cabin assembly industry.