针对医院大量移动式设备盘点和监管困难,设备遗失、闲置频发等问题,引进建筑信息模型(Building Information Model,简称BIM)及蓝牙室内定位和能耗监测技术。基于BIM技术融合设备台账、定位、能耗、建筑空间、边界范围等信息,开发了基于...针对医院大量移动式设备盘点和监管困难,设备遗失、闲置频发等问题,引进建筑信息模型(Building Information Model,简称BIM)及蓝牙室内定位和能耗监测技术。基于BIM技术融合设备台账、定位、能耗、建筑空间、边界范围等信息,开发了基于BIM的医院移动式设备管理技术和系统,实现了设备定位与盘点、轨迹分析、使用效率分析和异常状态智能识别等功能。在上海市新华医院儿科综合楼应用的实践表明,与传统管理模式相比,该系统可以智能识别移动式设备使用的异常情况,显著提升了设备管理效率。展开更多
A new real-time underwater equipment location method adopting an electric field induced by a standard current source is proposed.Our goals were real-time tracking and location of stationary or moving underwater equipm...A new real-time underwater equipment location method adopting an electric field induced by a standard current source is proposed.Our goals were real-time tracking and location of stationary or moving underwater equipment both in shallow and deep seas,under noisy conditions.The main features of this method are as follows:(1)a standard current source on the water surface,which can be towed by a vehicle,consisting of two electrodes,a signal generator,and a GPS unit;(2)measurement of the extremely low frequency(ELF)electric field emitted by the current source,made possible by electric field sensors on the underwater equipment;(3)position of the underwater equipment is estimated in real time based on a progressive update extended Kalman filter(PUEKF),which is carried out using the propagation model of an ELF electric field because the electric field at the position of the underwater equipment and the current source position are known.We verified the accuracy of our method and confirmed real-time location feasibility through numerical,physical scale,and real-time sea experiments.Through numerical experiments,we verified that our method works for underwater equipment location in real-world conditions,and the location error can be less than 0.2 m.Next,real-time location experiments for stationary underwater measuring equipment in water tank were conducted.The result shows that the location error can be less than 0.1 m.We also confirmed real-time location feasibility through the use of offshore experiment.We expect that our method will complement conventional underwater acoustic location methods for underwater equipment in acoustically noisy environments.展开更多
文摘针对医院大量移动式设备盘点和监管困难,设备遗失、闲置频发等问题,引进建筑信息模型(Building Information Model,简称BIM)及蓝牙室内定位和能耗监测技术。基于BIM技术融合设备台账、定位、能耗、建筑空间、边界范围等信息,开发了基于BIM的医院移动式设备管理技术和系统,实现了设备定位与盘点、轨迹分析、使用效率分析和异常状态智能识别等功能。在上海市新华医院儿科综合楼应用的实践表明,与传统管理模式相比,该系统可以智能识别移动式设备使用的异常情况,显著提升了设备管理效率。
基金supported by the Youth Foundation of the National Natural Science Foundation of China(Grant No.51509252)。
文摘A new real-time underwater equipment location method adopting an electric field induced by a standard current source is proposed.Our goals were real-time tracking and location of stationary or moving underwater equipment both in shallow and deep seas,under noisy conditions.The main features of this method are as follows:(1)a standard current source on the water surface,which can be towed by a vehicle,consisting of two electrodes,a signal generator,and a GPS unit;(2)measurement of the extremely low frequency(ELF)electric field emitted by the current source,made possible by electric field sensors on the underwater equipment;(3)position of the underwater equipment is estimated in real time based on a progressive update extended Kalman filter(PUEKF),which is carried out using the propagation model of an ELF electric field because the electric field at the position of the underwater equipment and the current source position are known.We verified the accuracy of our method and confirmed real-time location feasibility through numerical,physical scale,and real-time sea experiments.Through numerical experiments,we verified that our method works for underwater equipment location in real-world conditions,and the location error can be less than 0.2 m.Next,real-time location experiments for stationary underwater measuring equipment in water tank were conducted.The result shows that the location error can be less than 0.1 m.We also confirmed real-time location feasibility through the use of offshore experiment.We expect that our method will complement conventional underwater acoustic location methods for underwater equipment in acoustically noisy environments.
