长江航段拖载运输钢丝绳受力监控装置的设计

发布时间：2018-01-03 02:27

本文关键词：长江航段拖载运输钢丝绳受力监控装置的设计　出处：《武汉理工大学》2014年硕士论文　论文类型：学位论文

【摘要】：本文的目的是为长江航段水上设施拖载过载中的钢丝绳受力状况进行监控而设计出一套监控设备，系统由多个张力采集节点和一个接受节点组成，以一台PC机为终端监控设备，通过无线传输的方式，组成一个可实时采集各条钢缆数据的无线通讯网络。整个设计的工作模式为：整个无线网络是一个星形的结构，各个节点的张力传感器将钢丝绳的受力数据进行采集，经AD转换等处理后在单片机的控制下，以无线通讯的方式将数据发回给接收端点，接收端将信息接受后，通过USB接口传递到PC机上，利用Labview软件设计的界面对数据进行实时的显示及其他操作。本文从硬件、软件以及网络结构等三个方面分别进行了深入的研究。硬件部分是按照模块化的思想，分别对传感器模块、数据处理模块、电源模块、无线传输模块、PC机模块五个部分进行了设计。传感器模块主要涉及到传感器类型及型号的选择，AD转换器的选取标准及选择，本文采用的是北京中航科仪测控技术有限公司研制的CKY-126型张力传感器以及美国AD公司出品的AD1674型AD转换器。无线传输模块式本文的重点，从芯片的性能、工作频率、传输距离、编程难度、抗干扰能力、内部集成度等因素考虑，最终选择的单片机是深圳宏晶公司生产的STC11F02E型微处理器以及挪威NORDIC VLSI公司推出的nRF905无线传输芯片，然后对系统的晶振电路、电源模块、稳压电路进行了设计。上位机模块主要的内容是接收端芯片与PC机连接方式的选择，，在比较了USB接口方式和串口连接方式的优劣后，选用了USB的连接方式，给出了USB芯片PL2303的电路图和实物图。软件部分主要同样按照模块化的思想，给出了各个模块的程序流程图及部分源程序、重点介绍了无线传输模块nRF905无线芯片的初始化、寄存器配置以及如何通过SPI接口接受单片机的指令的工作原理。PC机模块以Labview图形化编程软件为基础设计了进行监控的人机界面，包括主控界面、报警设置界面、历史数据显示界面和数据曲线显示界面共四个界面。
[Abstract]:The purpose of this paper is to design a set of monitoring equipment for monitoring the stress condition of wire rope in the overloading of water facilities on the Yangtze River. The system consists of a number of tension acquisition nodes and a receiving node. With a PC as the terminal monitoring device, through wireless transmission. Constitute a wireless communication network which can collect the data of each cable in real time. The working mode of the whole design is as follows: the whole wireless network is a star structure. The tension sensor of each node collects the stress data of the wire rope and sends the data back to the receiving endpoint by wireless communication under the control of single chip microcomputer after AD conversion. After receiving the information, the receiver transmits the information to PC through USB interface, and uses the interface designed by Labview software to display the data and other operations in real time. The software and network structure are studied in detail. The hardware part is based on the idea of modularization, sensor module, data processing module, power module, wireless transmission module. The five parts of PC module are designed. The sensor module mainly involves the selection of sensor type and model and the selection standard and selection of AD converter. This paper uses the CKY-126 tension sensor developed by Beijing Aerospace instrument Measurement and Control Technology Co., Ltd. And the AD1674 type AD converter produced by AD Company of USA. The point. From the chip performance, working frequency, transmission distance, programming difficulty, anti-jamming ability, internal integration and other factors. The final choice of microcontroller is Shenzhen Hongjing company produced STC11F02E microprocessor and Norway's NORDIC VLSI nRF905 wireless transmission chip. Then the crystal oscillator circuit, power supply module, voltage stabilizer circuit are designed. The main content of the upper computer module is the choice of the connection mode between the receiving chip and PC. After comparing the advantages and disadvantages of USB interface mode and serial port connection mode, the connection mode of USB is selected, and the circuit diagram and physical diagram of USB chip PL2303 are given. In the software part, according to the idea of modularization, the program flow chart and part of the source program of each module are given, and the initialization of the wireless transmission module nRF905 wireless chip is emphasized. Register configuration and how to receive the instruction of MCU through SPI interface. PC module is designed based on Labview graphical programming software to monitor the man-machine interface. It includes four interfaces: main control interface, alarm setting interface, historical data display interface and data curve display interface.
【学位授予单位】：武汉理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U675.79;U695.26

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