电梯远程监控系统中通讯系统的设计与实现

发布时间：2018-07-24 10:46

【摘要】：随着人们生活水平的提高，高层建筑的数量越来越多，人们对于电梯的需求日益广泛，应运而生的电梯监控系统越来越受到广大厂商和用户的重视。而在互联网技术、通信技术高速发达的情况下，电梯监控系统已经不在局限于在固定的计算机监控中心通过PC机同现场总线相连来达到监控，远程监控和实时监控才能够保证对电梯信息和故障的更好获取。在此基础上，提出了电梯远程监控系统。电梯远程监控系统的功能是维保人员、生产厂商对运行在大型住宅区域的电梯进行远程监控，获取电梯的运行状态数据、故障信息，从而及时发现故障，，分析和排除故障。本文根据电梯远程监控系统的实际需求，分析了通讯系统存在的问题，并结合了CAN总线技术和工业以太网技术，提出了通讯系统的整体方案。该方案主要需要实现CAN总线接入Internet的功能。本文以LPC2368微控制器为核心，与CAN通信模块和以太网控制模块一起构建了硬件系统。然后，对系统软件通信进行了详细设计。主要实现了底层的设备驱动、实现TCP/IP协议，从而建立一条完整的数据通路。根据数据通信存在的问题，采用不断发生心跳包的方式保持通信系统的可靠性，最终实现了电梯采集设备通过CAN总线接入Internet，互联网上的数据中心通过该系统实现对电梯采集设备的访问，达到双向通信的目的。
[Abstract]:With the improvement of people's living standards, the number of high-rise buildings is increasing, and the demand for elevator is becoming more and more extensive. The elevator monitoring system has been paid more and more attention by the manufacturers and users. In the case of Internet technology and high speed development of communication technology, the elevator monitoring system is not limited to fixed. The computer monitoring center is connected to the field bus by PC to achieve monitoring. Remote monitoring and real-time monitoring can guarantee the better access to information and fault of the elevator. On this basis, the elevator remote monitoring system is proposed. The function of the elevator remote monitoring system is the maintenance personnel, the manufacturer's power to run in the large residential area. The ladder is monitored remotely, and the elevator running state data and fault information are obtained, so as to detect faults in time, analyze and remove faults.
According to the actual demand of the elevator remote monitoring system, this paper analyzes the existing problems of the communication system, and combines the CAN bus technology and the industrial Ethernet technology, and puts forward the overall scheme of the communication system. This scheme mainly needs to realize the function of the CAN bus access to Internet.
In this paper, the hardware system is built with the LPC2368 microcontroller and the CAN communication module and the Ethernet control module. Then, the system software communication is designed in detail. The main realization of the underlying device driver, the implementation of the TCP/IP protocol, and the establishment of a complete data path. When the heartbeat is broken, the reliability of the communication system is maintained. Finally, the elevator acquisition equipment is connected to the Internet through the CAN bus. The data center on the Internet realizes the access to the elevator acquisition equipment through the system, and achieves the purpose of two-way communication.
【学位授予单位】：华中科技大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TU857

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