To maintain the stability of the inter-satellite link for gravitational wave detection,an intelligent learning monitoring and fast warning method of the inter-satellite link control system failure is proposed.Differen...To maintain the stability of the inter-satellite link for gravitational wave detection,an intelligent learning monitoring and fast warning method of the inter-satellite link control system failure is proposed.Different from the traditional fault diagnosis optimization algorithms,the fault intelligent learning method pro-posed in this paper is able to quickly identify the faults of inter-satellite link control system despite the existence of strong cou-pling nonlinearity.By constructing a two-layer learning network,the method enables efficient joint diagnosis of fault areas and fault parameters.The simulation results show that the average identification time of the system fault area and fault parameters is 0.27 s,and the fault diagnosis efficiency is improved by 99.8%compared with the traditional algorithm.展开更多
为探索GS1 Digital Link技术在产品物流中的应用潜力,分析研究了GS1系统和GS1 Digital Link的基本结构、编码特点以及技术优势,充分利用GS1 Digital Link技术可以为产品从源头到零售整个物流过程提供相关对象的Web地址编码的特点,以鲜...为探索GS1 Digital Link技术在产品物流中的应用潜力,分析研究了GS1系统和GS1 Digital Link的基本结构、编码特点以及技术优势,充分利用GS1 Digital Link技术可以为产品从源头到零售整个物流过程提供相关对象的Web地址编码的特点,以鲜活大闸蟹物流过程为例,构建了基于GS1 Digital Link的鲜活大闸蟹Web编码,为实现产品营销与追溯提供了标准化、动态化、多样化的编码数据支撑。展开更多
为实现远距离、高可靠性传输,并减小复杂度,对Camera Link Full接口数据的HD-SDI传输显示进行了深入研究。采用FPGA作为核心处理器,考虑相机输出具有多种帧频,采取帧频检测及充分降频策略,并通过3个SRAM进行缓存以实现帧频转换,以满足HD...为实现远距离、高可靠性传输,并减小复杂度,对Camera Link Full接口数据的HD-SDI传输显示进行了深入研究。采用FPGA作为核心处理器,考虑相机输出具有多种帧频,采取帧频检测及充分降频策略,并通过3个SRAM进行缓存以实现帧频转换,以满足HD-SDI帧频25Hz的要求。考虑到SRAM数据宽度,采取FIFO行缓存策略将Camera Link Full80输出的10tap、80bits图像数据转换成单通道的8bits图像数据。最后,完成系统设计并进行实验验证。实验结果表明:系统实现了图像数据从50Hz、100Hz、500 Hz等多种帧频的Camera Link Full80到25帧HD-SDI接口1080i的格式转换及实时显示,且图像层次丰富,无失真。展开更多
基金This work was supported by the National Key Research and Development Program Topics(2020YFC2200902)the National Natural Science Foundation of China(11872110).
文摘To maintain the stability of the inter-satellite link for gravitational wave detection,an intelligent learning monitoring and fast warning method of the inter-satellite link control system failure is proposed.Different from the traditional fault diagnosis optimization algorithms,the fault intelligent learning method pro-posed in this paper is able to quickly identify the faults of inter-satellite link control system despite the existence of strong cou-pling nonlinearity.By constructing a two-layer learning network,the method enables efficient joint diagnosis of fault areas and fault parameters.The simulation results show that the average identification time of the system fault area and fault parameters is 0.27 s,and the fault diagnosis efficiency is improved by 99.8%compared with the traditional algorithm.
文摘为探索GS1 Digital Link技术在产品物流中的应用潜力,分析研究了GS1系统和GS1 Digital Link的基本结构、编码特点以及技术优势,充分利用GS1 Digital Link技术可以为产品从源头到零售整个物流过程提供相关对象的Web地址编码的特点,以鲜活大闸蟹物流过程为例,构建了基于GS1 Digital Link的鲜活大闸蟹Web编码,为实现产品营销与追溯提供了标准化、动态化、多样化的编码数据支撑。
文摘为实现远距离、高可靠性传输,并减小复杂度,对Camera Link Full接口数据的HD-SDI传输显示进行了深入研究。采用FPGA作为核心处理器,考虑相机输出具有多种帧频,采取帧频检测及充分降频策略,并通过3个SRAM进行缓存以实现帧频转换,以满足HD-SDI帧频25Hz的要求。考虑到SRAM数据宽度,采取FIFO行缓存策略将Camera Link Full80输出的10tap、80bits图像数据转换成单通道的8bits图像数据。最后,完成系统设计并进行实验验证。实验结果表明:系统实现了图像数据从50Hz、100Hz、500 Hz等多种帧频的Camera Link Full80到25帧HD-SDI接口1080i的格式转换及实时显示,且图像层次丰富,无失真。
