目前,对于厂矿企业专用线铁路货车的技术交接普遍采用室外人工检查方式,受人员素质、作业环境等因素影响易出现漏检问题,给铁路货车运行安全埋下隐患。基于“科技保安全”工作理念,研究采用TFDS(Trouble of moving Freight car Detectio...目前,对于厂矿企业专用线铁路货车的技术交接普遍采用室外人工检查方式,受人员素质、作业环境等因素影响易出现漏检问题,给铁路货车运行安全埋下隐患。基于“科技保安全”工作理念,研究采用TFDS(Trouble of moving Freight car Detection System,货车故障轨旁图像检测系统)[1]智能识别技术对专用线铁路交出货车进行技术交接检查作业,在TFDS采集线阵图像基础上,综合利用深度学习和AI图像处理技术,实时分析采集图像信息,利用智能识别技术交接车辆存在的故障并进行预警,把控专用线发出列车质量,保障铁路运输安全畅通。展开更多
The rapid growth and innovation of the various mobile communication technologies have caused a change in the paradigm of internet access. Wireless technologies such as WiM AX, WiFi and UM T S/LTE networks have shown g...The rapid growth and innovation of the various mobile communication technologies have caused a change in the paradigm of internet access. Wireless technologies such as WiM AX, WiFi and UM T S/LTE networks have shown great p otential in dominating the wireless access markets. The ex istence of various access technologies requires a means for seamless internetworking to provide an ywhere, anytime services without interruption in the ongoing session, especially in multimedia展开更多
One key advantage of 4G OFDM system is the relatively simple receiver implementation due to the orthogonal resource allocation.However,from sum-capacity and spectral efficiency points of view,orthogonal systems are ne...One key advantage of 4G OFDM system is the relatively simple receiver implementation due to the orthogonal resource allocation.However,from sum-capacity and spectral efficiency points of view,orthogonal systems are never the achieving schemes.With the rapid development of mobile communication systems,a novel concept of non-orthogonal transmission for 5G mobile communications has attracted researches all around the world.In this trend,many new multiple access schemes and waveform modulation technologies were proposed.In this paper,some promising ones of them were discussed which include Non-orthogonal Multiple Access(NOMA),Sparse Code Multiple Access(SCMA),Multi-user Shared Access(MUSA),Pattern Division Multiple Access(PDMA)and some main new waveforms including Filter-bank based Multicarrier(FBMC),Universal Filtered Multi-Carrier(UFMC),Generalized Frequency Division Multiplexing(GFDM).By analyzing and comparing features of these technologies,a research direction of guiding on future 5G multiple access and waveform are given.展开更多
文摘目前,对于厂矿企业专用线铁路货车的技术交接普遍采用室外人工检查方式,受人员素质、作业环境等因素影响易出现漏检问题,给铁路货车运行安全埋下隐患。基于“科技保安全”工作理念,研究采用TFDS(Trouble of moving Freight car Detection System,货车故障轨旁图像检测系统)[1]智能识别技术对专用线铁路交出货车进行技术交接检查作业,在TFDS采集线阵图像基础上,综合利用深度学习和AI图像处理技术,实时分析采集图像信息,利用智能识别技术交接车辆存在的故障并进行预警,把控专用线发出列车质量,保障铁路运输安全畅通。
基金supported by the University of Malaya under the Research University under Grant No. RG064/11ICT
文摘The rapid growth and innovation of the various mobile communication technologies have caused a change in the paradigm of internet access. Wireless technologies such as WiM AX, WiFi and UM T S/LTE networks have shown great p otential in dominating the wireless access markets. The ex istence of various access technologies requires a means for seamless internetworking to provide an ywhere, anytime services without interruption in the ongoing session, especially in multimedia
基金supported in part by National Natural Science Funds for Creative Research Groups of China under Grant No. 61421061Huawei Innovation Research ProgramOpen Research Fund in Xi’an Jiaotong University under Grant No. sklms2015015
文摘One key advantage of 4G OFDM system is the relatively simple receiver implementation due to the orthogonal resource allocation.However,from sum-capacity and spectral efficiency points of view,orthogonal systems are never the achieving schemes.With the rapid development of mobile communication systems,a novel concept of non-orthogonal transmission for 5G mobile communications has attracted researches all around the world.In this trend,many new multiple access schemes and waveform modulation technologies were proposed.In this paper,some promising ones of them were discussed which include Non-orthogonal Multiple Access(NOMA),Sparse Code Multiple Access(SCMA),Multi-user Shared Access(MUSA),Pattern Division Multiple Access(PDMA)and some main new waveforms including Filter-bank based Multicarrier(FBMC),Universal Filtered Multi-Carrier(UFMC),Generalized Frequency Division Multiplexing(GFDM).By analyzing and comparing features of these technologies,a research direction of guiding on future 5G multiple access and waveform are given.
