面向自动抄表的无线数据传输系统

发布时间：2019-06-20 22:57

【摘要】：随着科技的发展、硬件芯片和软件技术的革新无线网络技术逐渐普及人类生活的各个方面。欧美国家从本世纪初已经普及家用仪表远程抄写,目前国内各大仪表厂商和气热公司也在致力于研发面向自动抄表的无线数据传输系统。本课题从供电、成本、系统可靠性、故障检测、系统可用性等方面对现有的无线数据传输系统方案进行对比,论述了现有解决方案分别存在的问题提出了电池供电、射频通信、完全自组网的自动抄表无线数据传输方案。论文概括了面向自动抄表无线数据传输的国内外研究现状,对自动抄表系统的特点进行总结,对系统应用场景进行详细描述;然后结合其仪表抄写的数据量小、周期性等特点对系统需求进行了详细分析,并对系统的关键技术问题进行阐述,提出自己的技术路线。论文介绍了基于6LowPAN的自组网数据传输系统的总体架构方案,并对系统各部分进行功能分解和详细介绍。针对无线数据传输系统的双向传输功能,本文对系统通信架构进行详细设计并提出了设计方案,确保无线数据端到端可靠性;另外,考虑到系统的部署环境问题,为了方便用户在部署和故障调试时对无线网络进行配置控制和状态查看,本文对无线网络集中控制器部分进行了详细设计,并从系统应用便捷性角度出发提出构建无线AP并搭建web服务器的方式方便移动设备接入集中器进行无线网络控制。本课题中对系统的硬件进行了详细的设计并给出了无线模块和集中器设备的详细构成和外围电路图,同时也详细介绍了软件系统的设计思路,并对上行下行数据传输给出了合理的应用层数据传输协议。本课题设计和开发过程中统筹考虑了系统长周期运行的可靠性和实际工业生产中产品的批量生产、部署、调试等问题。为了保障系统的长周期稳定运行采用了一系列的方法和技术,包括6LowPAN网络监测和网络控制、Supervisor进程监控、基于红外的诊断调试方法等。集中器的硬件选择、电路设计和软件构建都考虑到了系统稳定性和系统断电、宕机等异常情况。
[Abstract]:With the development of science and technology, the innovation of hardware chip and software technology wireless network technology gradually popularizes all aspects of human life. European and American countries have popularized remote copying of household instruments since the beginning of this century. At present, domestic instrument manufacturers and gas and heat companies are also committed to the development of wireless data transmission system for automatic meter reading. In this paper, the existing wireless data transmission system schemes are compared from the aspects of power supply, cost, system reliability, fault detection, system availability and so on, and the existing solutions are discussed respectively. the automatic meter reading wireless data transmission scheme of battery power supply, radio frequency communication and complete ad hoc network is put forward. This paper summarizes the research status of wireless data transmission for automatic meter reading at home and abroad, summarizes the characteristics of automatic meter reading system, describes the application scene of the system in detail, and then analyzes the system requirements in detail according to the characteristics of small amount of data and periodicity of instrument copying, and expounds the key technical problems of the system, and puts forward its own technical route. In this paper, the overall architecture of ad hoc network data transmission system based on 6LowPAN is introduced, and each part of the system is decomposed and introduced in detail. Aiming at the bidirectional transmission function of wireless data transmission system, this paper designs the communication architecture of the system in detail and puts forward a design scheme to ensure the end-to-end reliability of wireless data. In addition, considering the deployment environment of the system, in order to facilitate users to configure and control the wireless network during deployment and fault debugging, this paper designs the wireless network centralized controller in detail, and proposes a way to construct wireless AP and build web server to facilitate mobile device access concentrator for wireless network control from the point of view of system application convenience. In this paper, the hardware of the system is designed in detail, and the detailed composition and peripheral circuit diagram of the wireless module and concentrator equipment are given. at the same time, the design idea of the software system is introduced in detail, and a reasonable application layer data transmission protocol for uplink and downlink data transmission is given. In the process of design and development, the reliability of the long cycle operation of the system and the mass production, deployment and debugging of the products in the actual industrial production are considered as a whole. In order to ensure the long period stable operation of the system, a series of methods and techniques are adopted, including 6LowPAN network monitoring and network control, Supervisor process monitoring, infrared based diagnosis and debugging methods and so on. The hardware selection, circuit design and software construction of the concentrator all take into account the system stability, system power outage, outage and other anomalies.
【学位授予单位】：哈尔滨工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN919.6

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