The Internet of Things(IoT)inspires industries to deploy a massive number of connected devices to provide smart and ubiquitous services to influence our daily life.Edge computing leverages sufficient computation and s...The Internet of Things(IoT)inspires industries to deploy a massive number of connected devices to provide smart and ubiquitous services to influence our daily life.Edge computing leverages sufficient computation and storage at the edge of the network to enable deploying complex functions closer to the environment using Internet-connected devices.According to the purpose of the environment including privacy level,domain functionality,network scale and service quality,various environment-specific services can be provided through heterogeneous applications with sensors and actuators based on edge computing.However,for providing user-friendly service scenarios based on the transparent access to heterogeneous devices in edge computing,a consistent interface shall be provided to deliver services from edge computing to clients.In this paper,we propose transparent computing based on virtual resources to access heterogeneous IoT devices without considering the underlying network configuration at the edge of the networks.For supporting transparent access to different edge computing environments through a consistent interface,the virtual resource of edge gateway is proposed to bridge the Internet and devices which are deployed on the edge of the network.The proposed edge gateway exposes the services of the Internet of Things devices to the Internet using virtual resources that represent the resources of physical devices.The virtual resources provide a consistent interface to enable clients to access devices in edge computing without considering underlying protocols.The virtual resource is generated by the resource directory in the edge gateway through the registration of a device.Based on the device registration,the device information is stored in the gateway to link virtual resources and devices for translating messages according to the destination protocols and identifying physical devices that are represented by virtual resources.Moreover,through collaboration with the service provider,the function of device discovery an展开更多
针对测绘成果数据面临着汇交更新不及时、数据类型多样和共享性低的问题,文章提出了将网络技术与测绘成果更新发布系统相结合的方法。该方法充分发挥了Web应用程序的优点,建立了测绘成果资源目录三层体系,使用ArcGIS API for JavaScrip...针对测绘成果数据面临着汇交更新不及时、数据类型多样和共享性低的问题,文章提出了将网络技术与测绘成果更新发布系统相结合的方法。该方法充分发挥了Web应用程序的优点,建立了测绘成果资源目录三层体系,使用ArcGIS API for JavaScript技术不仅改善了用户的交互性,而且实现了测绘成果的网上更新发布,为政府和用户快速查询、申请和共享提供更多方法。文章提出的测绘成果资源目录分类标准规范,实现了对每项测绘成果数据的精确查找,全面提升了测绘地理信息行业分发服务的水平。展开更多
基金This work was supported by the Institute of Information&communications Technology Planning&Evaluation(IITP)grant funded by the Korea government(MSIT)(2020-0-00048,Development of 5G-IoT Trustworthy AI-Data Commons Framework).
文摘The Internet of Things(IoT)inspires industries to deploy a massive number of connected devices to provide smart and ubiquitous services to influence our daily life.Edge computing leverages sufficient computation and storage at the edge of the network to enable deploying complex functions closer to the environment using Internet-connected devices.According to the purpose of the environment including privacy level,domain functionality,network scale and service quality,various environment-specific services can be provided through heterogeneous applications with sensors and actuators based on edge computing.However,for providing user-friendly service scenarios based on the transparent access to heterogeneous devices in edge computing,a consistent interface shall be provided to deliver services from edge computing to clients.In this paper,we propose transparent computing based on virtual resources to access heterogeneous IoT devices without considering the underlying network configuration at the edge of the networks.For supporting transparent access to different edge computing environments through a consistent interface,the virtual resource of edge gateway is proposed to bridge the Internet and devices which are deployed on the edge of the network.The proposed edge gateway exposes the services of the Internet of Things devices to the Internet using virtual resources that represent the resources of physical devices.The virtual resources provide a consistent interface to enable clients to access devices in edge computing without considering underlying protocols.The virtual resource is generated by the resource directory in the edge gateway through the registration of a device.Based on the device registration,the device information is stored in the gateway to link virtual resources and devices for translating messages according to the destination protocols and identifying physical devices that are represented by virtual resources.Moreover,through collaboration with the service provider,the function of device discovery an
文摘针对测绘成果数据面临着汇交更新不及时、数据类型多样和共享性低的问题,文章提出了将网络技术与测绘成果更新发布系统相结合的方法。该方法充分发挥了Web应用程序的优点,建立了测绘成果资源目录三层体系,使用ArcGIS API for JavaScript技术不仅改善了用户的交互性,而且实现了测绘成果的网上更新发布,为政府和用户快速查询、申请和共享提供更多方法。文章提出的测绘成果资源目录分类标准规范,实现了对每项测绘成果数据的精确查找,全面提升了测绘地理信息行业分发服务的水平。
