标题: | SeC---结合云端运算与感测网路之应用服务平台---子计画一:SeC-Net结合云端运算与感测网路之感测资料收集机制 Sec-Net---Efficient Sensing Data Collection Mechanism for Sensor-Enabled Cloud Services |
作者: | 曾煜棋 Tseng Yu-Chee 国立交通大学资讯工程学系(所) |
关键字: | 云端运算;资料汇集;资料压缩;车载网路;无线通讯;无线感测网路;行动感测。;cloud computing;data aggregation;data compression;mobile sensing;vehicular ad-hoc network;wireless communication;wireless sensor network. |
公开日期: | 2011 |
摘要: | ‘云端运算’是将运算能力、资料储存、网路传输当做是一种服务,使用者 的资料及相关计算需求,存放在网路的‘云’之上,而不必依赖使用者的个人 电脑、笔记型电脑或手机等储存装置之中,只要在任何有网路的地方,都可以 存取并使用这项云端服务。本子计画一是藉由布建于环境中之各项感测器,如 惯性元件(电子罗盘、三轴加速器、陀螺仪等)、环境元件(空气、温湿度等)、位 置追踪元件(GPS、RF 讯号)、车载感测元件(连接OBD 之感测器、交通路况、 行车记录器等)、智慧型手机上的各式感测元件,并利用ZigBee、3G、WiFi、 车载网路等,将资料以无线方式传回后端云端资料处理平台。藉由这些广泛的 感测资料,许多商机及应用都会逐一出现。 这样的环境里充满许多挑战性的网路议题,这些感测器可能是固定式或移动 式的,感测的资料多元且异质,而感测的来源可能是个别或群体式(如车群、共 游之车队、持手机的社群朋友等),而云端应用对感测资料的需求及解析度和时 空的关联性也会随时改变。此子计画将探讨这些资料收集与回传之网路传送机 制。在第一年之中,我们先探讨固定式感测网路之云端资料收集机制,考量资 料的时间与空间相关性,来建立多重解析度之资料压缩与回传机制,其可依云 端平台之需求,将资料以最适当之大小,回传至云端平台。而在第二年之中, 我们将此议题延伸到车载或手机社群的感测网路上,同样的也是考量资料的时 间与空间相关性,并结合无线传输之特性,建构一套依时间轴及空间轴相依性 而调适之资料压缩模型。在第三年之中,我们将针对具特殊网路拓朴或具移动 性的感测网路(例如长链状车载感测网路或向某处移动之人潮),探讨资料之收 集与散布机制,根据网路之拓朴或移动特性,设计适合之群组或分群机制,并 提出有效率之资料收集与散布机制。经由本计画,我们将建立自有之感测平台, 并配合整合型计画开发各项云端运算之应用,以展示sensor-enabled cloud services 之特色。 Cloud computing is a kind of Internet-based computing services. All of users' data can be stored into the cloud of the network instead of into their own devices, such personal computers, notebooks, or mobile phones. Hence, users can access their data and use the cloud computing services while Internet accessible. The goal of the subproject is to deploy some kinds of sensors in the environment to sense the environment and report all sensory data through wireless network (such as ZigBee, 3G, WiFi, VANET, etc.) to the cloud computing platform. There exists various challenging issues in such environment and we will discuss them in our three-year project. In the first year, we focus on the transmission mechanism of these sensing data in the static sensor network. We consider the spatial and temporal correlations of sensing data to provide a multi-resolution data compression mechanism. The data can be compressed into the suitable size and uploaded into the cloud platform. In the second year, we will extend it to the vehicular ad hoc network (VANET) or mobile phone sensor network. In the third year, we will focus on a special kind of network topology of mobile nodes (such as long-thin VANET). According to the characteristics of network topology and mobility, we will provide a clustering mechanism and an efficient data collection and distribution mechanism. To demonstrate the sensor-enabled cloud services, each cloud computing service of the main project will be established over our own sensing cloud platform. |
官方说明文件#: | NSC100-2218-E009-014-MY3 |
URI: | http://hdl.handle.net/11536/99330 https://www.grb.gov.tw/search/planDetail?id=2331774&docId=366195 |
显示于类别: | Research Plans |