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毕业设计-基于zigBee无线网络的温度测量系统设计，共48页，14919字
摘要
无线传感器网络是分布在各个区域的自组织节点设备的无线网络。这些节点设备通过自身的传感器来监测周围的物理或者环境状况，比如温度、声音、压力、震动等，通过汇总和分析这些信息做出决策。无线传感网络最初应用在军事领域，用以战地的一些监测。
本文首先介绍了ZigBee技术的发展现状、ZigBee技术规范及ZigBee芯片CC2430的特点。其次具体论述了采用CC2430完成分布式温度测量系统的设计方案，设计一个可以进行温度数据的采集、处理、发送、接受、显示和和将数据上传PC机的系统，整个系统分为两个部分：温度测量节点和数据集中器，即ZigBee终端设备和ZigBee协调器。温度测量节点和数据集中器都由一个CC2430无线模块和若干节干电池组成，温度测量节点完成温度数据的采集、处理和发送，数据集中器完成数据的接收和通过RS232将MAX232处理后的数据上传PC机。温度数据的采集由CC2430芯片内置的片内温度传感器完成，数据的处理由CC2430芯片集成的ADC和8051MCU完成，数据的发送和接受由非平衡天线完成，用LCD1602进行数据的显示，并通过RS232将MAX232处理后的温度数据上传PC机。在此之后讨论了无线网络的功耗管理方法、无线网络的配置、利用片内温度传感器检测环境温度、从节点温度数据的发送、主节点对温度数据的接收及上传给上位机显示等内容。
关键词:无线传感器网络; ZigBee; CC2430;无线通信
Abstract
A Wireless Sensor Network{WSN) is a network consisting of spatially distributedself-organizing devices. These devices use their sensors to monitor devices. Their sensors to monitor environmental conditions, such as temperature, sound, pressure vibration, and so on. Decision is made after data acquisition and information processing. WSN were originally motivated by military applications, such as battlefield surveillance. In addition areas, including environment monitoring, home automation, and traffc control. WSNs become one of the hottest research directions of computer science now days.
This article briefly introduced the development of ZigBee technology and the
specification of it, also the characteristics of the CC2430 chip on which the ZigBee technology can be implemented. Beside, This design can be a temperature data acquisition, processing, sending, receiving, display and upload the data to the PC, the whole system is divided into two parts: temperature measurement node and the data concentrator, that is ZigBee end device andZigBee coordinator. Temperature measurement node and the data concentrator consists of a CC2430 radio module and a number of sections dry composition, temperature measurement node completes collection, processing and distribution of temperature data , data concentrators complete data reception and upload the processed data to PC. Temperature data collection is completed by the CC2430 chip-chip temperature sensor , and the data is processed by integrated ADC and 8051MCU of the CC2430 chip, the data sending and receiving is completed by the non-equilibrium antenna.LCD1602 display data, and the data concentrator will upload processed temperature data to PC through RS232.And it give a sample application example on how to realize a distributed temperature measure task, including power consumption management, configuration of the wireless network, using the on-chip temperature sensor to detect the environment temperature, the way the temperature data is send from child-device, and the receiving of temperature. data on the coordinate side, and the way the data is up-loaded to a PC, on which the data is further display.
Key words: ZigBee;802.1 S.4;CC2430;wireless communication
目 录
摘要 I
Abstract II
目 录 IV
第一章 绪 论 1
1.1 ZigBee技术背景介绍 1
1.2 ZigBee技术应用前景 2
1.3毕业论文任务目标 2
第二章ZigBee技术简介 3
2.1 ZigBee的基本概念 3
2.1.1目前现有的几种网络标准比较 3
2.1.2 ZigBee与842.15.4 4
2.1.3 ZigBee频带、数据传输率及信道 4
2.I.4 ZigBee的设备类型 5
2.2 ZigBee网络拓扑结构 5
2.2.1星型拓扑结构网络 5
2.2.2树簇型网络 6
2.2.3网状(MESH)网络 6
2.3 ZigBee标准规范 7
2.3.1原语概念 7
2.3.2 PHY层任务 7
2.3.3 MAC层的主要任务 7
2.3.4信标、超帧及其结构 8
2.4 ZigBee通信可靠性保证 9
2.4.1通信可靠机制 9
2.4.2 ZigBee网络的自组织性和自愈能力 9
2.5 ZigBee技术优势 10
2.6 ZigBee应用条件及应用场合 10
2.6.1 ZigBee的应用条件 10
2.6.2 ZigBee的主要应用场合 10
第三章 ZigBee收发器CC2430简介 12
3.1 CC2430结构与特点 12
3.1.1 CC2430结构 12
3.1.2 CC2430芯片的主要特点如下： 12
3.2 CC2430内部一些重要单元模块 13
3.2.1电压调节器（Voltage Regulators ) 13
3.2.2调试仿真接口 13
3.2.3 SLEEP TIMER 14
3.2.4 CC2430存储器结构 14
3.2.5 CC2430的电源管理 15
第四章 系统硬件设计 16
4.1系统总体硬件设计 16
4.2温度测量节点的功耗估算 18
4.3 CC2430芯片的硬件接口设计 19
4.4通信电路设计 22
4.5液晶显示器接口电路设计 23
第五章 系统软件设计 26
5.1 系统总体软件设计 26
5.2 CC2430模块软件设计 27
5.3 通信模块设计 29
5.3.1 从节点使用片内温度传感器检测环境温度 29
5.3.2 从节点温度数据的发送 30
5.3.3 主节点对温度数据的接收和上传PC机 31
5.4 液晶显示模块设计 32
5.4.1 LCD1602控制器指令说明 32
5.4.2 1602LCD的RAM地址映射及标准字库表 34
5.4.3 程序设计 35
结论 41
参考文献 42
致谢及声明 43