兼容多种通信方式的智能网关设计与实现
发布时间：2019-02-16 20:05
【摘要】：21世纪以来,伴随通信技术和计算机技术的快速融合,信息的传递量和速度也得到了大幅度提升,网关作为信息传递的门户与管理者,在信息的传递过程中起到了举足轻重的作用。目前,工业控制领域的网关设备,多数通信方式较为单一,仅能够实现同一种网络内测控终端的通信,无法同时满足异构网络快速接入互联网或同一网络中不同通信方式(包括传输协议、接口方式和数据类型的差异)的终端设备的接入需求。尽管测控终端设备的智能化、信息化已经相当普及,但不同厂家、不同型号、不同类型的测控终端设备还很难统一通信方式；此外,一个大型测控网络通常包含多个异构局域网络,这些问题给测控网络的组网和集中控制与管理带来很大的难题。 本文针对上述问题,在分析智能网关相关技术的研究背景和发展现状基础上,对现有的网关系统和测控系统的组网技术进行分析和比较,并结合可再生能源应用工程测控系统的实际需求,提出了基于嵌入式系统和多种通信技术的智能网关设计方案；设计了智能网关的硬件系统和软件系统,构建了测试平台并完成对智能网关的测试；测试结果表明了本文智能网关达到预期的设计目标,用户通过Web浏览器访问测控中心服务器,即可对大型测控网络内的任意现场设备进行查询和控制；也可以通过移动终端对任一个智能网关进行现场操作。 在上述智能网关的设计和实现过程中,本文的主要工作如下： (1)根据智能网关功能和性能需求,对硬件系统核心器件进行合理的选型,采用32位RISC微处理器S3C2440A作为系统控制核心,研究了多种通信方式及其接口技术,采用核心板+扩展通信模块的设计方法,实现了智能网关的硬件电路系统。 (2)根据智能网关功能需求和硬件系统,选择合适的嵌入式操作系统,研究包括数据传输协议转换在内的各种通信方式的控制、嵌入式数据库设计、分布式数据库的数据同步、嵌入式系统长期连续运行的可靠性、提高移动终端数据处理速度等技术和方法,设计并实现智能网关的嵌入式软件系统。 (3)构建了基于实际的可再生能源应用工程的测试平台,提出测试要求和方法、搭建相应的测试环境,对本文实现的智能网关的功能和性能进行测试,并对主要测试结果进行分析。 (4)对本文的工作进行总结,并提出进一步深入研发的展望。
[Abstract]:Since the 21st century, with the rapid integration of communication technology and computer technology, the amount and speed of information transmission has been greatly improved. Gateway is the gateway and manager of information transmission. It plays an important role in the process of information transmission. At present, most of the gateway devices in the field of industrial control have a single communication mode, and can only realize the communication of the measurement and control terminal in the same network. It can not meet the requirement of fast access to the Internet in heterogeneous networks or different communication modes in the same network (including the difference of transmission protocol, interface mode and data type). Although the intelligence and information technology of the terminal equipment has been popularized, it is difficult for different manufacturers, different models and different types of terminal equipment to unify the communication mode. In addition, a large measurement and control network usually contains multiple heterogeneous local area networks. These problems bring great difficulties to the networking and centralized control and management of measurement and control networks. Aiming at the above problems, this paper analyzes and compares the networking technology of the existing gateway system and the measurement and control system on the basis of analyzing the research background and development status of the intelligent gateway related technology. The intelligent gateway design scheme based on embedded system and various communication technologies is put forward according to the actual requirements of the renewable energy application engineering measurement and control system. The hardware system and software system of the intelligent gateway are designed, the test platform is constructed and the intelligent gateway is tested. The test results show that the intelligent gateway achieves the desired design goal. Users can query and control any field equipment in the large measurement and control network by visiting the measurement and control center server through the Web browser. Also can carry on the field operation to any intelligent gateway through the mobile terminal. In the design and implementation of the intelligent gateway, the main work of this paper is as follows: (1) according to the function and performance requirements of the intelligent gateway, the core components of the hardware system are selected reasonably. The 32-bit RISC microprocessor S3C2440A is used as the control core of the system. Various communication modes and their interface technologies are studied. The design method of extending the communication module with the core board is adopted to realize the hardware circuit system of the intelligent gateway. (2) according to the function requirement of intelligent gateway and hardware system, select suitable embedded operating system, study the control of various communication modes, including data transfer protocol conversion, design of embedded database, The embedded software system of intelligent gateway is designed and implemented by the technologies and methods of data synchronization of distributed database, reliability of embedded system running continuously for a long time, and improving data processing speed of mobile terminal. (3) the test platform based on the actual renewable energy application engineering is constructed, the test requirements and methods are put forward, the corresponding test environment is built, and the function and performance of the intelligent gateway realized in this paper are tested. The main test results are analyzed. (4) summarize the work of this paper, and put forward the prospect of further research and development.
【学位授予单位】：福建师范大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TP393.05
[Abstract]:Since the 21st century, with the rapid integration of communication technology and computer technology, the amount and speed of information transmission has been greatly improved. Gateway is the gateway and manager of information transmission. It plays an important role in the process of information transmission. At present, most of the gateway devices in the field of industrial control have a single communication mode, and can only realize the communication of the measurement and control terminal in the same network. It can not meet the requirement of fast access to the Internet in heterogeneous networks or different communication modes in the same network (including the difference of transmission protocol, interface mode and data type). Although the intelligence and information technology of the terminal equipment has been popularized, it is difficult for different manufacturers, different models and different types of terminal equipment to unify the communication mode. In addition, a large measurement and control network usually contains multiple heterogeneous local area networks. These problems bring great difficulties to the networking and centralized control and management of measurement and control networks. Aiming at the above problems, this paper analyzes and compares the networking technology of the existing gateway system and the measurement and control system on the basis of analyzing the research background and development status of the intelligent gateway related technology. The intelligent gateway design scheme based on embedded system and various communication technologies is put forward according to the actual requirements of the renewable energy application engineering measurement and control system. The hardware system and software system of the intelligent gateway are designed, the test platform is constructed and the intelligent gateway is tested. The test results show that the intelligent gateway achieves the desired design goal. Users can query and control any field equipment in the large measurement and control network by visiting the measurement and control center server through the Web browser. Also can carry on the field operation to any intelligent gateway through the mobile terminal. In the design and implementation of the intelligent gateway, the main work of this paper is as follows: (1) according to the function and performance requirements of the intelligent gateway, the core components of the hardware system are selected reasonably. The 32-bit RISC microprocessor S3C2440A is used as the control core of the system. Various communication modes and their interface technologies are studied. The design method of extending the communication module with the core board is adopted to realize the hardware circuit system of the intelligent gateway. (2) according to the function requirement of intelligent gateway and hardware system, select suitable embedded operating system, study the control of various communication modes, including data transfer protocol conversion, design of embedded database, The embedded software system of intelligent gateway is designed and implemented by the technologies and methods of data synchronization of distributed database, reliability of embedded system running continuously for a long time, and improving data processing speed of mobile terminal. (3) the test platform based on the actual renewable energy application engineering is constructed, the test requirements and methods are put forward, the corresponding test environment is built, and the function and performance of the intelligent gateway realized in this paper are tested. The main test results are analyzed. (4) summarize the work of this paper, and put forward the prospect of further research and development.
【学位授予单位】：福建师范大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TP393.05
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