ZigBee无线窗控系统的设计与实现

发布时间：2018-07-04 14:53

本文选题：ZigBee + 无线网络　；参考：《西安电子科技大学》2014年硕士论文

【摘要】：随着无线通信技术的迅猛发展,继蓝牙、Wi-Fi之后,ZigBee作为一种新兴的短距离、低速率无线个域网技术,被广泛地应用于工业、医疗、环境监测、智能建筑、数字家庭等领域。这些领域数据传输量不大,需要较低的成本,或是地形复杂,监测点多,不宜布线。本文利用ZigBee技术设计了无线窗控系统,实现了对窗控节点的无线控制与监测。本文研究的主要内容如下:1.分析了ZigBee网络技术与IEEE802.15.4标准;比较了三种常用的近距离无线网络技术(蓝牙、Wi-Fi、ZigBee);研究了ZigBee的三种网络拓扑结构(星状、网状、树状)、ZigBee协议体系结构、组网技术及网络地址分配的算法。2.无线窗控系统终端节点硬件电路的设计与制作。针对无线窗控系统需要实现的功能,基于CC2530芯片对无线窗控系统终端节点的硬件电路进行了设计与制作。终端节点主要分为两个模块,分别是电源模块和驱动模块。电源模块包括开关电源电路和降压电路两部分。开关电源采用反激式电路,主要用于给电机供电;降压电路主要用于输出5V和3.3V电压。驱动模块用于控制电机,改变电机正转与反转的工作模式即窗户打开与关闭。本文详细计算了驱动模块和电源模块中相关电路的参数,并完成PCB电路板的制作。3.ZigBee无线窗控系统软件设计。根据Z-Stack协议栈及系统功能要求,设计了无线窗控系统组网及数据传输的流程图。在此基础上,利用IAR软件环境,编程实现了PC机、协调器、终端节点之间无线数据传输。窗控节点将采集的接近开关状态发送到协调器中,协调器将收到的数据发送到PC机;PC机发出命令,由协调器转发到终端节点,改变电机的工作模式。4.组建与测试基于ZigBee网络的无线窗控系统。利用多个制作的窗控节点作为终端节点,液晶开发板作为协调器和路由器,建立星形和树形的网络拓扑结构。基于串口助手和无线窗控系统软件,对星形和树形的无线窗控系统进行功能测试。基于无线窗控系统软件,可以监控接近开关的状态,判断窗户打开或关闭;也可以发送控制命令到窗控节点中,控制电机正转与反转,打开或关闭窗户。
[Abstract]:With the rapid development of wireless communication technology, ZigBee has been widely used in industry, medical treatment, environmental monitoring, intelligent building, digital home and other fields as a new technology of wireless personal area network (WPAN), after Bluetooth Wi-Fi. Data transmission in these fields is small, requires low cost, or complex terrain, monitoring points, not suitable for routing. In this paper, the wireless window control system is designed by using ZigBee technology, and the wireless control and monitoring of window control nodes are realized. The main contents of this paper are as follows: 1. This paper analyzes ZigBee network technology and IEEE 802.15.4 standard, compares three commonly used wireless network technologies (Bluetooth Wi-Fi / ZigBee), studies three network topologies (star, mesh, tree) of ZigBee, and studies ZigBee protocol architecture. Networking technology and network address allocation algorithm. 2. Design and manufacture of terminal node hardware circuit of wireless window control system. Aiming at the function of wireless window control system, the hardware circuit of terminal node of wireless window control system is designed and fabricated based on CC2530 chip. The terminal node is divided into two modules, power module and driving module. The power module includes two parts: switching power circuit and voltage-down circuit. The switching power supply adopts flyback circuit, which is mainly used to supply power to the motor, and the step-down circuit is mainly used to output 5V and 3.3V voltages. The driving module is used to control the motor and change the working mode of the positive turn and reverse of the motor, that is, the windows are opened and closed. In this paper, the parameters of the related circuits in the driving module and the power module are calculated in detail, and the software design of the PCB circuit board. 3. ZigBee wireless window control system is completed. According to Z-Stack protocol stack and system function requirements, the flow chart of wireless window control system network and data transmission is designed. On this basis, wireless data transmission between PC, coordinator and terminal nodes is realized by using IAR software environment. The window control node sends the collected close switch state to the coordinator, and the coordinator sends the received data to the PC computer to issue the command. The coordinator transmits the data to the terminal node to change the working mode of the motor. Build and test the wireless window control system based on ZigBee network. Using multiple window control nodes as terminal nodes and liquid crystal development board as coordinator and router, the network topology of star and tree is established. Based on serial port assistant and wireless window control system software, the function of star and tree wireless window control system is tested. Based on the software of wireless window control system, it can monitor the state of the close switch, judge whether the window is open or closed, or send control commands to the window control node, control the motor forward turn and reverse, open or close the window.
【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN92

【相似文献】