基于ZigBee的温室环境参数多路监控系统
发布时间:2018-04-21 03:19
本文选题:温室测控系统 + 无线传感器网络 ; 参考:《西北农林科技大学》2014年硕士论文
【摘要】:温室环境测控系统实现了温室环境的智能化控制,为温室作物提供了最佳的生长环境,从而达到了增加温室作物产量、改善品质、调节生长周期、提高经济效益的目的。但是,目前温室环境测控系统中仍然存在环境参数采集单一、设备控制单一、有线布线或预先布线复杂等普遍性问题,本文结合无线通信技术、传感器技术和计算机控制技术,对温室环境参数的多路采集、温室设备的多路控制等方面进行分析和研究,设计一种基于ZigBee的温室环境参数多路测控系统,实现温室多路环境参数的自动采集和温室多路设备的智能控制的功能,满足了我国现代温室农业科学化管理的需求。本文的主要研究内容与结论如下: (1)设计一种基于ZigBee技术的簇树型无线传感器网络,该网络主要由汇聚节点、路由节点、多路环境参数采集节点和设备控制节点构成。节点之间采用无线传输方式,实现了温室环境多路参数信息的收发、处理、存储和温室设备的控制,较好的解决了温室环境测控系统人工布线成本高、维护困难、扩展性差等一系列问题。 (2)研发一套温室环境参数多路测控装置。该装置选择以CC2591芯片、多路环境参数采集器件和控制设备为主要模块,并设计CC2530芯片的相关外围接口电路,较好地完成多路测控系统中各类网络节点硬件的开发,降低了生产成本,缩短了开发周期,实现了温室环境参数的多路采集和温室设备的多路控制。 (3)设计多路测控系统各类网络节点的应用软件。在分析和研究Z-Stack协议栈的基础之上,,结合系统需求和硬件设计,定制系统网络通信协议,利用节点核心芯片CC2530的低功耗休眠机制和有限状态机流控制模式,开发了各类节点的相关应用程序、温室控制中心及上位机软件,保证了系统的稳定性和数据传输的可靠性。 测试结果表明:该系统具有自动组网、数据收发、存储与管理、多路环境参数采集及多路设备控制等功能,同时,系统网络数据传输可靠性较高。满足了温室农业生产过程中对现场环境参数进行无线化、智能化管理的需求,对提高温室农业管理水平具有重要的现实意义。
[Abstract]:The greenhouse environment measurement and control system realizes the intelligent control of greenhouse environment, provides the best growing environment for greenhouse crops, and achieves the purpose of increasing greenhouse crop yield, improving quality, adjusting growth cycle and increasing economic benefit. However, there are still some common problems in greenhouse environment measurement and control system, such as single collection of environmental parameters, single equipment control, complex wired or prewired wiring, etc. This paper combines wireless communication technology, sensor technology and computer control technology. This paper analyzes and studies the multi-channel acquisition of greenhouse environmental parameters and the multi-channel control of greenhouse equipment, and designs a greenhouse environmental parameter multi-channel measurement and control system based on ZigBee. The functions of automatic collection of greenhouse multi-channel environmental parameters and intelligent control of greenhouse multi-channel equipment meet the needs of scientific management of modern greenhouse agriculture in China. The main contents and conclusions of this paper are as follows: 1) A cluster-tree wireless sensor network based on ZigBee technology is designed. The network consists of convergent nodes, routing nodes, multi-path environment parameter acquisition nodes and device control nodes. Wireless transmission mode is adopted between the nodes to realize the sending and receiving, processing, storing and controlling of greenhouse environment multi-path parameter information, which solves the high cost of artificial wiring and the difficulty of maintenance of greenhouse environment measurement and control system. A series of problems such as poor extensibility and so on. Research and development of a greenhouse environmental parameters multi-way measurement and control device. The device chooses CC2591 chip, multi-channel environmental parameter acquisition device and control equipment as the main modules, and designs the related peripheral interface circuit of CC2530 chip, and completes the hardware development of various network nodes in the multi-channel measurement and control system. The production cost is reduced, the development cycle is shortened, and the multi-channel acquisition of greenhouse environmental parameters and the control of greenhouse equipment are realized. The application software of various network nodes in multi-channel measurement and control system is designed. Based on the analysis and research of Z-Stack protocol stack, combined with the system requirement and hardware design, the system network communication protocol is customized, and the low power dormancy mechanism of node core chip CC2530 and the finite state machine flow control mode are used. The related application programs of all kinds of nodes, greenhouse control center and upper computer software are developed to ensure the stability of the system and the reliability of data transmission. The test results show that the system has the functions of automatic networking, data receiving and sending, storage and management, multi-channel environmental parameter acquisition and multi-channel equipment control, etc. At the same time, the reliability of the system network data transmission is high. It meets the demand of wireless and intelligent management of field environmental parameters in greenhouse agricultural production process, and has important practical significance to improve the level of greenhouse agricultural management.
【学位授予单位】:西北农林科技大学
【学位级别】:硕士
【学位授予年份】:2014
【分类号】:TP277;TN92
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