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| <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg></a></nav> <ul class="sidebar-links"><li><section class="sidebar-group depth-0"><p class="sidebar-heading"><span>IoTDB用户手册 (V0.8.x)</span> <!----></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>0-开始使用</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading open"><span>1-概述</span> <span class="arrow down"></span></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/zh/UserGuide/V0.8.x/1-Overview/1-What is IoTDB.html" class="sidebar-link">什么是IoTDB</a></li><li><a href="/zh/UserGuide/V0.8.x/1-Overview/2-Architecture.html" class="sidebar-link">架构</a></li><li><a href="/zh/UserGuide/V0.8.x/1-Overview/3-Scenario.html" aria-current="page" class="active sidebar-link">应用场景</a></li><li><a href="/zh/UserGuide/V0.8.x/1-Overview/4-Features.html" class="sidebar-link">特征</a></li></ul></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>2-基本概念</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>3-操作指南</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>4-系统部署与管理</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>5-IoTDB SQL文档</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>6-JDBC API</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>7-TsFile</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>8-系统工具</span> <span class="arrow right"></span></p> <!----></section></li></ul> </aside> <main class="page"> <div class="content content__default"><h1 id="应用场景"><a href="#应用场景" class="header-anchor">#</a> 应用场景</h1> <h2 id="场景1"><a href="#场景1" class="header-anchor">#</a> 场景1</h2> <p>某公司采用表面贴装技术（SMT）生产芯片：需要首先在芯片上的焊接点处印刷（即涂抹）锡膏，然后将元器件放置在锡膏上，进而通过加热熔化锡膏并冷却，使得元器件被焊接在芯片上。上述流程采用自动化生产线。为了确保产品质量合格，在印刷锡膏后，需要通过光学设备对锡膏印刷的质量进行评估：采用三维锡膏印刷检测（SPI）设备对每个焊接点上的锡膏的体积（v）、高度（h）、面积（a）、水平偏移（px）、竖直偏移（py）进行度量。</p> <p>为了提升印刷质量，该公司有必要将各个芯片上焊接点的度量值进行存储，以便后续基于这些数据进行分析。</p> <p>此时可以采用IoTDB套件中的TsFile组件、TsFileSync工具和Hadoop/Spark集成组件对数据进行存储：每新印刷一个芯片，就在SPI设备上使用SDK写一条数据，这些数据最终形成一个TsFile文件。通过TsFileSync工具，生成的TsFile文件将按一定规则（如每天）被同步到Hadoop数据中心，并由数据分析人员对其进行分析。</p> <img src="https://user-images.githubusercontent.com/13203019/51579014-695ef980-1efa-11e9-8cbc-e9e7ee4fa0d8.png" style="width:100%;max-width:800px;max-height:600px;margin-left:auto;margin-right:auto;display:block;"> <p>在场景1中，仅需要TsFile、TsFileSync部署在一台PC上，此外还需要Hadoop/Spark集群。其示意图如图1.2所示。图1.3展示了此时的应用架构。</p> <img src="https://user-images.githubusercontent.com/13203019/51579026-77ad1580-1efa-11e9-8345-564b22d70286.jpg" style="width:100%;max-width:800px;max-height:600px;margin-left:auto;margin-right:auto;display:block;"> <h2 id="场景2"><a href="#场景2" class="header-anchor">#</a> 场景2</h2> <p>某公司拥有多座风力发电机，公司在每个发电机上安装了上百种传感器，分别采集该发电机的工作状态、工作环境中的风速等信息。</p> <p>为了保证发电机的正常运转并对发电机及时监控和分析，公司需要收集这些传感器信息，在发电机工作环境中进行部分计算和分析，还需要将收集的原始信息上传到数据中心。</p> <p>此时可以采用IoTDB套件中的IoTDB、TsFileSync工具和Hadoop/Spark集成组件等。需要部署一个场控PC机，其上安装IoTDB和TsFileSync工具，用于支持读写数据、本地计算和分析以及上传数据到数据中心。此外还需要部署Hadoop/Spark集群用于数据中心端的数据存储和分析。如图1.4所示。</p> <img src="https://user-images.githubusercontent.com/13203019/51579033-7ed42380-1efa-11e9-889f-fb4180291a9e.png" style="width:100%;max-width:800px;max-height:600px;margin-left:auto;margin-right:auto;display:block;"> <p>图1.5给出了此时的应用架构。</p> <img src="https://user-images.githubusercontent.com/13203019/51579064-8f849980-1efa-11e9-8cd6-a7339cd0540f.jpg" style="width:100%;max-width:800px;max-height:600px;margin-left:auto;margin-right:auto;display:block;"> <h2 id="场景3"><a href="#场景3" class="header-anchor">#</a> 场景3</h2> <p>某工厂在厂区范围内拥有多种机械手设备，这些机械手设备的硬件配置有限，很难搭载复杂的应用程序。在每个机械手设备上工厂安装了很多种传感器，用以对机械手的工作状态、温度等信息进行监控。由于工厂的网络环境原因，在工厂内部的机械手均处于工厂内部局域网内，无法连接外部网络。同时，工厂中会有少量服务器能够直接连接外部公网。</p> <p>为了保证机械手的监控数据能够及时监控和分析，公司需要收集这些机械手传感器信息，将其发送至可以连接外部网络的服务器上，而后将原始数据信息上传到数据中心进行复杂的计算和分析。</p> <p>此时，可以采用IoTDB套件中的IoTDB、IoTDB-CLI工具、TsFileSync工具和Hadoop/Spark集成组件等。将IoTDB服务器安装在工厂连接外网的服务器上，用户接收机械手传输的数据并将数据上传到数据中心。将IoTDB-CLI工具安装在每一个连接工厂内网的机械手上，用于将传感器产生的实时数据上传到工厂内部服务器。再使用TsFileSync工具将原始数据上传到数据中心。此外还需要部署Hadoop/Spark集群用于数据中心端的数据存储和分析。如图1.6中间场景所示。</p> <img src="https://user-images.githubusercontent.com/13203019/51579080-96aba780-1efa-11e9-87ac-940c45b19dd7.jpg" style="width:100%;max-width:800px;max-height:600px;margin-left:auto;margin-right:auto;display:block;"> <p>图1.7给出了此时的应用架构。</p> <img src="https://user-images.githubusercontent.com/13203019/51579085-9dd2b580-1efa-11e9-97b9-f56bc8d342b0.jpg" style="width:100%;max-width:800px;max-height:600px;margin-left:auto;margin-right:auto;display:block;"> <h2 id="场景4"><a href="#场景4" class="header-anchor">#</a> 场景4</h2> <p>某汽车公司在其下属的汽车上均安装了传感器采集车辆的行驶状态等监控信息。这些汽车设备的硬件配置有限，很难搭载复杂的应用程序。安装传感器的汽车可以通过窄带物联网相互连接，也可以通过窄带物联网将数据发送至外部网络。</p> <p>为了能够实时接收汽车传感器所采集的物联网数据，公司需要在车辆行驶的过程中将传感器数据通过窄带物联网实时发送至数据中心，而后在数据中心的服务器上进行复杂的计算和分析。</p> <p>此时，可以采用IoTDB套件中的IoTDB、IoTDB-CLI和Hadoop/Spark集成组件等。将IoTDB-CLI工具安装在每一辆车联网内的车辆上，使用IoTDB-JDBC工具将数据直接传回数据中心的服务器。</p> <p>此外还需要部署Hadoop/Spark集群用于数据中心端的数据存储和分析。如图1.8所示。</p> <img src="https://user-images.githubusercontent.com/13203019/51579095-a4f9c380-1efa-11e9-9f95-17165ec55568.jpg" style="width:100%;max-width:800px;max-height:600px;margin-left:auto;margin-right:auto;display:block;"></div> <div class="page-nav"><p class="inner"><span class="prev"> |
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