2.7 小结

2.7  小结

本章的目的是让用户熟悉主要的SSIS向导。Import and Export Wizard是一种创建负责数据导入和导出的简易程序包的快捷方式。该向导可以生成能够多次运行的程序包。Package Installation Wizard是一种在完成SSIS项目开发之后对它进行部署的方法。

然后介绍了Business Intelligence Development Studio(BIDS),用户在开发程序包时需要花大多数时间和它打交道。本章还介绍了该界面的关键部分,并使用户了解了如何创建第一个简单的程序包。

既然用户已经对SSIS有了初步认识,了解了SSIS的实际功能(这些功能体现于用户在程序包中所能够使用的诸多任务中)。在第3章和第4章将介绍更一般的主题以及更高级的转换。

目 录 摘 要 ················································································································ I Abstract ············································································································ II 1 绪论 ·············································································································· 2 1.1 研究背景及意义 ············································································ 2 1.1.1 研究背景 ··················································································· 2 1.1.2 技术演进需求 ········································································· 3 1.1.3 研究意义 ··················································································· 3 1.2 国内外研究现状 ············································································ 5 1.2.1 国外研究 ··················································································· 5 1.2.2 国内研究 ··················································································· 6 1.3 本文章节安排 ················································································· 8 2 LoRa 通信技术 ·························································································· 10 2.1 LoRa 通信技术基础概述 ···························································· 10 2.1.1 LoRa 技术原理 ······································································· 10 2.1.2 LoRa 技术特点 ······································································· 10 2.1.3 UAV 集群使用 LoRa 技术的优缺点分析 ······················ 11 2.2 UAV 能耗优化与功能实现初步介绍 ······································ 12 2.3 UAV 能耗影响因素分析 ····························································· 15 2.4 LoRa 网络架构与 LoRaWAN 网络架构 ································ 16 2.5 基于 LoRa 通信的 UAV 能耗模型建立 ································· 17 2.6 基于 LoRa 通信的 UAV 能耗优化策略 ································· 18 2.7 小结 ···································································································· 20 I 基于 LoRa 通信技术的无人机能耗优化 3 优化能耗的方法详细解释 ···································································· 21 3.1 优化飞行策略 ················································································· 21 3.1.1 LoRa 通信技术与 UAV 结合的网络能耗优化问题 ···· 21 3.1.2 规划最优路径 ········································································· 22 3.1.3 调整飞行高度与速度 ··························································· 22 3.2 选用高效 LoRa 模块 ···································································· 23 3.3 优化天线设计与布局 ··································································· 24 3.4 采用高性能电池 ············································································ 26 3.5 动态调整发射功率 ········································································ 26 3.6 优化数据传输机制 ········································································ 28 4 仿真与实验验证 ······················································································· 29 4.1 仿真环境搭建 ················································································· 29 4.2 仿真参数与公式分析 ··································································· 29 4.2.1 通信参数优化对能耗的影响 ············································· 29 4.2.2 UAV 本身的质量与飞行速率对能耗的影响 ················ 29 4.2.3 任务调度对能耗的影响 ······················································· 29 4.3 代码分析 ·························································································· 29 4.4 实验验证 ·························································································· 32 5 总结与展望 ································································································ 37 5.1 总结 ···································································································· 37 5.1.1 LoRa 通信技术在 UAV 应用中的优势与能耗特性 ···· 37 5.1.2 能耗优化策略的有效性与局限性 ···································· 37 5.1.3 硬件节能设计策略 ································································ 38 5.1.4 多策略协同优化的综合效果 ············································· 38 II 5.2 展望 ···································································································· 39 5.2.1 技术融合与创新 ····································································· 39 5.2.2 应用场景拓展与优化 ··························································· 40 5.2.3 标准化与产业化发展 ··························································· 40根据该目录形成一个论文流程图
05-13
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