传统电能质量监测、治理系统基于电网侧,系统建设成本高,数据归属电力系统内部,不能及时与用户共享,具有一定封闭性;同时缺乏多维数据挖掘和分析,不能给用户提供增值服务。提出一种基于综合能源服务业务的电能质量服务体系,将传统电能...传统电能质量监测、治理系统基于电网侧,系统建设成本高,数据归属电力系统内部,不能及时与用户共享,具有一定封闭性;同时缺乏多维数据挖掘和分析,不能给用户提供增值服务。提出一种基于综合能源服务业务的电能质量服务体系,将传统电能质量技术与综合能源业务融合,以服务和用户体验为中心,结合用电信息采集渠道开展服务,从成本和技术上保证方案的可行性;结合边缘计算、大数据、云计算等技术,从基础设施服务(infrastructure as a service,IaaS)、软件服务(software as a service,SaaS)、平台服务(platform as a service,PaaS)3个层面为客户提供丰富的电能质量服务选择和优质的电能质量服务产品。方案符合能源互联网发展规律,能有效保证信息透明共享、终端兼容接入、分布式存储计算、支持友好互动等要求,为综合能源业务的电能质量服务体系建设提供参考。展开更多
The rapid technological convergence between Internet of Things （loT）, Wireless Body Area Networks （WBANs） and cloud computing has made e-healthcare emerge as a promising application domain, which has significant p...The rapid technological convergence between Internet of Things （loT）, Wireless Body Area Networks （WBANs） and cloud computing has made e-healthcare emerge as a promising application domain, which has significant potential to improve the quality of medical care. In particular, patient-centric health monitoring plays a vital role in e-healthcare service, involving a set of important operations ranging from medical data collection and aggregation, data transmission and segregation, to data analytics. This survey paper firstly presents an architectural framework to describe the entire monitoring life cycle and highlight the essential service components. More detailed discussions are then devoted to {／em data collection} at patient side, which we argue that it serves as fundamental basis in achieving robust, efficient, and secure health monitoring. Subsequently, a profound discussion of the security threats targeting eHealth monitoring systems is presented, and the major limitations of the existing solutions are analyzed and extensively discussed. Finally, a set of design challenges is identified in order to achieve high quality and secure patient-centric monitoring schemes, along with some potential solutions.展开更多
In order to guarantee the overall return on investment (ROI), improve user experience and quality of service (QoS), save energy, reduce electra magnetic interference (EMI) and radiation pollution, and enable the susta...In order to guarantee the overall return on investment (ROI), improve user experience and quality of service (QoS), save energy, reduce electra magnetic interference (EMI) and radiation pollution, and enable the sustainable deployment of new profitable applications and services in heterogeneous wireless networks coexistence reality, this paper proposes a cross-network cooperation mechanism to effectively share network resources and infrastructures, and then adaptively control and match multi-network energy distribution characteristics according to actual user/service requirements in different geographic areas. Some idle or lightly-loaded base stations (BS or BSs) will be temporally turned off for saving energy and reducing EMI. Initial simulation results show that the proposed approach can significantly improve the overall energy efficiency and QoS performance across multiple cooperative wireless networks.展开更多
文摘传统电能质量监测、治理系统基于电网侧,系统建设成本高,数据归属电力系统内部,不能及时与用户共享,具有一定封闭性;同时缺乏多维数据挖掘和分析,不能给用户提供增值服务。提出一种基于综合能源服务业务的电能质量服务体系,将传统电能质量技术与综合能源业务融合,以服务和用户体验为中心,结合用电信息采集渠道开展服务,从成本和技术上保证方案的可行性;结合边缘计算、大数据、云计算等技术,从基础设施服务(infrastructure as a service,IaaS)、软件服务(software as a service,SaaS)、平台服务(platform as a service,PaaS)3个层面为客户提供丰富的电能质量服务选择和优质的电能质量服务产品。方案符合能源互联网发展规律,能有效保证信息透明共享、终端兼容接入、分布式存储计算、支持友好互动等要求,为综合能源业务的电能质量服务体系建设提供参考。
基金supported,in part,by Science Foundation Ireland grant 10/CE/I1855 to Lero -the Irish Software Engineering Research Centre(www.lero.ie)
文摘The rapid technological convergence between Internet of Things （loT）, Wireless Body Area Networks （WBANs） and cloud computing has made e-healthcare emerge as a promising application domain, which has significant potential to improve the quality of medical care. In particular, patient-centric health monitoring plays a vital role in e-healthcare service, involving a set of important operations ranging from medical data collection and aggregation, data transmission and segregation, to data analytics. This survey paper firstly presents an architectural framework to describe the entire monitoring life cycle and highlight the essential service components. More detailed discussions are then devoted to {／em data collection} at patient side, which we argue that it serves as fundamental basis in achieving robust, efficient, and secure health monitoring. Subsequently, a profound discussion of the security threats targeting eHealth monitoring systems is presented, and the major limitations of the existing solutions are analyzed and extensively discussed. Finally, a set of design challenges is identified in order to achieve high quality and secure patient-centric monitoring schemes, along with some potential solutions.
基金supported by the National Natural Science Foundation of China ( NSFC)( No. 60902041)Chinese Academy of Sciences ( No. 2010045)the Ministry of Science and Technology( MOST) of China ( No. 2010DFB10410,No. 2009DFB13080 and No. 2009ZX03003-009)
文摘In order to guarantee the overall return on investment (ROI), improve user experience and quality of service (QoS), save energy, reduce electra magnetic interference (EMI) and radiation pollution, and enable the sustainable deployment of new profitable applications and services in heterogeneous wireless networks coexistence reality, this paper proposes a cross-network cooperation mechanism to effectively share network resources and infrastructures, and then adaptively control and match multi-network energy distribution characteristics according to actual user/service requirements in different geographic areas. Some idle or lightly-loaded base stations (BS or BSs) will be temporally turned off for saving energy and reducing EMI. Initial simulation results show that the proposed approach can significantly improve the overall energy efficiency and QoS performance across multiple cooperative wireless networks.
