针对目前LED灯具性能寿命的研究现状及对重要场所LED灯具寿命分析的需求,利用ZPLC(Zero Power Line Communication)技术和建筑能耗管理系统,对单一灯具进行电性能参数采集,将结果与实验室数据对比分析得出可靠估值。后期引入神经网络方...针对目前LED灯具性能寿命的研究现状及对重要场所LED灯具寿命分析的需求,利用ZPLC(Zero Power Line Communication)技术和建筑能耗管理系统,对单一灯具进行电性能参数采集,将结果与实验室数据对比分析得出可靠估值。后期引入神经网络方法对数据进行深度挖掘,提出一个低成本可推广的LED灯具寿命研判系统的设计思路。展开更多
Three sets of High Intensity Beam Emittance Measurement Units (HIBEMUs) are being developed at Peking University. They are HIBEMU-2 (slit-wire type, one direction), HIBEMU-3 (Allison scanner type, one direction) and H...Three sets of High Intensity Beam Emittance Measurement Units (HIBEMUs) are being developed at Peking University. They are HIBEMU-2 (slit-wire type, one direction), HIBEMU-3 (Allison scanner type, one direction) and HIBEMU-4 (slit-wire type, two directions). For HIBEMU-2 and HIBEMU-3, more recent work has been done on software redesign in order to measure beam emittance and to draw phase diagram more efficiently and precisely. Software for control and data processing of them were developed in Labveiw environment, trying to improve calculation rationality and to offer user-friendly interface. Mechanical modification was also done for HIBEMU-3, mainly concentrating on the protection of Faraday cups from being overheated by the high intensity beam and also from interference of secondary electrons. This paper will also cover the mechanical structure as well as the software development of HIBEMU-4, which is a two-direction emittance scanner newly designed and manufactured for the high energy beam transport (HEBT) of Peking University Neutron Imaging FaciliTY (PKUNIFTY). At the end of this paper, comparison and analysis of the three HIBEMUs are given to draw forth better design of the future emittance measurement facility.展开更多
文摘针对目前LED灯具性能寿命的研究现状及对重要场所LED灯具寿命分析的需求,利用ZPLC(Zero Power Line Communication)技术和建筑能耗管理系统,对单一灯具进行电性能参数采集,将结果与实验室数据对比分析得出可靠估值。后期引入神经网络方法对数据进行深度挖掘,提出一个低成本可推广的LED灯具寿命研判系统的设计思路。
基金supported by the National Natural Science Foudation of China (Grant No. 11075008)
文摘Three sets of High Intensity Beam Emittance Measurement Units (HIBEMUs) are being developed at Peking University. They are HIBEMU-2 (slit-wire type, one direction), HIBEMU-3 (Allison scanner type, one direction) and HIBEMU-4 (slit-wire type, two directions). For HIBEMU-2 and HIBEMU-3, more recent work has been done on software redesign in order to measure beam emittance and to draw phase diagram more efficiently and precisely. Software for control and data processing of them were developed in Labveiw environment, trying to improve calculation rationality and to offer user-friendly interface. Mechanical modification was also done for HIBEMU-3, mainly concentrating on the protection of Faraday cups from being overheated by the high intensity beam and also from interference of secondary electrons. This paper will also cover the mechanical structure as well as the software development of HIBEMU-4, which is a two-direction emittance scanner newly designed and manufactured for the high energy beam transport (HEBT) of Peking University Neutron Imaging FaciliTY (PKUNIFTY). At the end of this paper, comparison and analysis of the three HIBEMUs are given to draw forth better design of the future emittance measurement facility.
