基于ARM和Linux的数据网关的研究与设计

发布时间：2018-03-21 08:03

本文选题：数据网关　切入点：Linux　出处：《云南大学》2016年硕士论文　论文类型：学位论文

【摘要】：节能减排和发展低碳经济已经成为发展我国经济的根本性前提,缓解资源环境约束,促进经济发展方式改变,建设资源节约型、环境友好型社会,增强可持续发展能力已经成为“十二五”节能减排的约束性目标。当前节能减排的工作所存在的主要问题之一就是基础工作薄弱,能源消耗费用和污染物排放计量、统计体系建设缓慢,监测能力等需要改进。能源消费计量、统计和管理缺乏有效的数据采集和管理手段一直以来都是节能减排的工作瓶颈,为了解决企业、智能建筑或者政府职能部门在节能减排所存在的问题,本文设计的数据网关能够为它们实时地获取能耗信息、进行相应的组织、管理和决策提供了有效的技术支持。本文以节能减排、能耗监控为背景,设计了一种基于Linux和ARM的数据采集网关,该网关在硬件上使用了以ARM920T为核心的工业级的微控制器芯片,通过8路RS232和8路RS485接口实现数据的采集,通过以太网接口实现将所采集的数据远传到服务器。在软件上大致可以分为三个模块：数据中心控制、数据采集、数据远传。其中在数据远传过程中,包含身份认证和数据包上传过程,由于在此过程中数据类型复杂,需要针对不同类型的数据进行统一处理,为了保证下位机与上位机能够稳定的进行通信,主要研究了下位机数据网关与上位机服务器之间的具体通信规则。并在Linux系统基础上,通过XML结合TCP来实现了该通信协议。最后,对数据网关进行了测试,结果表明,本系统所设计的通信协议达到了设计要求,满足了数据网关与服务器之间的通信需求。
[Abstract]:Energy saving and emission reduction and the development of low-carbon economy have become the fundamental prerequisite for the development of China's economy, ease the constraints of resources and environment, promote the change of economic development mode, and build a resource-saving and environment-friendly society. Enhancing the ability of sustainable development has become the binding target of energy saving and emission reduction in the 12th Five-Year Plan. One of the main problems in the current energy saving and emission reduction work is the weakness of basic work, the cost of energy consumption and the emission measurement of pollutants. Energy consumption metering, statistics and management lack of effective data collection and management means have always been the bottleneck of energy conservation and emission reduction, in order to solve the problem of enterprises, Intelligent buildings or government functions in energy conservation and emission reduction problems, the data gateway designed in this paper can obtain energy consumption information in real time for them to organize, In this paper, a data acquisition gateway based on Linux and ARM is designed based on the background of energy saving and emission reduction, energy consumption monitoring and control. The gateway uses an industrial microcontroller chip with ARM920T as the core in the hardware. The data acquisition is realized by 8 RS232 and 8 RS485 interfaces, and the data is transmitted to the server by Ethernet interface. The software can be divided into three modules: data center control, data acquisition, data acquisition, data acquisition, data acquisition, data acquisition, data acquisition, data acquisition, data acquisition, data acquisition, data acquisition, Data remote transmission. In the process of data remote transmission, including authentication and packet upload process, because of the complexity of data types in this process, we need to deal with different types of data in a unified way. In order to ensure the communication between the lower computer and the upper computer, the specific communication rules between the data gateway of the lower computer and the upper computer server are mainly studied, and based on the Linux system, The communication protocol is implemented by XML and TCP. Finally, the data gateway is tested. The results show that the communication protocol meets the design requirements and meets the communication requirements between the data gateway and the server.
【学位授予单位】：云南大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TN915.05;TP316.81

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