基于MC12311微控制器WSN中间件的设计研究及应用

发布时间：2018-01-31 17:34

本文关键词： WSN MC12311 软件构件硬件构件中间件图形化　出处：《苏州大学》2013年硕士论文　论文类型：学位论文

【摘要】：无线传感器网络（WSN）综合了计算机技术、通信技术以及传感器技术，被广泛用于环境监测、军事防御等领域，是当今嵌入式领域的研究热点。WSN应用开发设计涉及的相关领域较多，包括射频电路设计、底层驱动封装、应用编程框架等理论体系，有一定的技术门槛，，很大程度上限制了WSN的应用推广。加之WSN存在大量的异构硬件平台，如果能够对异构的软件系统做一些中间件的封装，屏蔽掉底层硬件平台的差异，方便开发人员使用，将大大降低WSN应用设计的技术门槛。受飞思卡尔公司委托，凭借实验室在WSN研究领域多年的经验与实践，以飞思卡尔2012年最新上市推出的一款应用于WSN领域的微控制器芯片MC12311为硬件蓝本，基于此芯片针对WSN应用进行了一定的基础性研究。利用MC12311微控制器设计了一款命名为SD-WSNZN的无线硬件节点，按照嵌入式硬件构件思想对该新芯片进行了最小系统电路、射频电路、电源电路及接口电路等模块的硬件设计。同时遵循软件构件思想，对底层模块驱动进行了封装；通过对WSN中间件体系的学习与借鉴，尝试提出了WSN中间件SDWML的软件体系，提取并抽象WSN各层功能逻辑，将软件中间件划分为物理层、MAC层、网络层的三层架构，并逐层实现了功能，同时给出了功能结构清晰的对外应用接口；明确分割了应用层和中间层，创新性地引入了图形化应用层，统一了应用编程框架，使得一般的应用人员通过配置图形参数、操作图形元素编程的方式实现了WSN应用的基本编程，降低了WSN应用开发的难度。本文对微控制器芯片MC12311在WSN方面的基础性研究，为其市场的应用和推广提供了实质的参考价值。出于验证以上相关设计研究工作的正确性和合理性的目的，本文最后以基于SD-WSNZN无线节点开发的企业车间无线数据采集系统为应用对象，组织了一个较为简单的应用实例。经测试的WSN中间件SDWML体系受到了飞思卡尔的认可，同时设计的SD-WSNZN无线节点和WSN中间件SDWML软件在此实际应用中得到了验证，运行稳定。
[Abstract]:Wireless sensor network (WSN), which integrates computer technology, communication technology and sensor technology, is widely used in environmental monitoring, military defense and other fields. WSN application development and design involves many related fields, including RF circuit design, bottom driver packaging, application programming framework and other theoretical systems, there is a certain technical threshold. In addition, there are a large number of heterogeneous hardware platforms in WSN. If we can do some middleware encapsulation to the heterogeneous software system, we can shield the differences of the underlying hardware platform. Easy for developers to use, will greatly reduce the technical threshold of WSN application design. Entrusted by Freescale, with the laboratory in the field of WSN years of experience and practice. In 2012, Freescale launched a microcontroller chip MC12311 used in the field of WSN as the hardware blueprint. Based on this chip, a certain basic research on WSN application is carried out, and a wireless hardware node named SD-WSNZN is designed by using MC12311 microcontroller. According to the idea of embedded hardware component, the hardware design of the new chip is carried out, such as minimum system circuit, radio frequency circuit, power supply circuit and interface circuit, etc. At the same time, the idea of software component is followed. The bottom module driver is encapsulated. Based on the study and reference of WSN middleware system, this paper proposes the software architecture of WSN middleware SDWML, extracts and abstracts the functional logic of each layer of WSN, and divides the software middleware into physical layer. The MAC layer, the three-layer architecture of the network layer, has realized the function layer by layer, at the same time has given the function structure clear external application interface; The application layer and the middle layer are clearly divided, the graphical application layer is introduced innovatively, and the application programming framework is unified, so that the general application personnel can configure the graphic parameters. The basic programming of WSN application is realized by operating graphic element programming, and the difficulty of developing WSN application is reduced. In this paper, the basic research on WSN of MC12311 microcontroller chip is presented. It provides the essential reference value for the application and promotion of its market. In order to verify the correctness and rationality of the above related design research work, this paper takes the enterprise workshop wireless data acquisition system based on SD-WSNZN wireless node as the application object. A simple application example is organized. The tested WSN middleware SDWML system is recognized by Freescale. At the same time, the SD-WSNZN wireless node and WSN middleware SDWML software are verified and run stably.
【学位授予单位】：苏州大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TP368.1;TP212.9;TN929.5

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