基于LabVIEW的船用气囊安全监测系统的设计与研究

发布时间：2018-04-14 06:40

本文选题：LabVIEW + 船用气囊　；参考：《广东工业大学》2013年硕士论文

【摘要】：船用气囊下水技术是我国独创的,拥有自主知识产权的下水工艺。相较于以往的下水工艺,气囊下水是一种更为简单、经济、省时、省力、机动灵活、高效环保的方式。从上个世纪80年代开始,气囊下水工艺已经在各种中小型船厂得到广泛应用。随着气囊承载力的不断提高,采用气囊下水的船舶自重越来越大,随之而来的风险也越来越高。目前在船舶下水操作过程中,船用气囊的压力监测仍然采用传统的机械式压力表,而下水操作需要同时使用数十个甚至上百个气囊,压力监测工作的效率较低,且存在安全隐患。为了提高气囊内压监测效率,我们设计开发了一套基于LabVIEW的船用气囊安全监测系统。该安全监测系统分为上位机和下位机两大部分。通过ZigBee无线网络完成气压采集,并通过PC机上基于LabVIEW的安全监测系统软件对监测数据进行管理。该监测系统可以拉开监测人员与气囊之间的距离,提高操作安全性；同时,简洁的监测界面,各个气囊的内压数据一目了然,提高了监测效率；最后,整个下水过程的气囊内压数据都保存在数据库中,这些历史数据对下水过程的安全性研究也有重要意义。 ZigBee是一种短距离无线通信技术,具有低成本、低功耗、自组网等特点。该系统的下位机部分是基于ZigBee的无线网络,包括采集节点、中继器和采集器三个部分。采集节点以CC2530芯片为微处理器,以MPX5700为气体压力传感器的硬件设备。采集节点将采集到的数据通过无线网络发送给采集器。中继器负责数据转发,由采集节点的硬件设备通过软件编程来实现。采集器是该网络中的协调器,对接收的数据进行处理后,传送给上位机。 LabVIEW是一种图形化编程语言,具有界面友好、操作简便、开发周期短等特点,广泛应用于各个行业的仿真、数据采集、仪器控制、测量分析和数据显示等方面。该系统的上位机部分是运行于PC机Windows操作系统上的基于LabVIEW的安全监测系统软件。上位机可以实现以下功能：1)与下位机通过RS232进行通信,实时接收下位机传送的16进制字符串数据；2)对接收到的字符串进行运算,把气囊的编号及压力值显示出来,同时把气囊的压力值显示在波形图上；3)通过与数据库连接,实现数据的管理,完成历史数据的保存与查看。
[Abstract]:In the process of launching the ship , the pressure monitoring of the ship ' s air bag still adopts the traditional mechanical pressure gauge , and the lower water operation needs to use dozens or even hundreds of airbags simultaneously , and the pressure monitoring work has low efficiency and potential safety hazard .

In order to improve the efficiency of air bag internal pressure monitoring , we have developed a marine air bag safety monitoring system based on LabVIEW . The safety monitoring system is divided into two parts : upper computer and lower computer .
At the same time , the internal pressure data of each air bag is clear and the monitoring efficiency is improved ;
Finally , the data of the air bag internal pressure of the whole launching process is stored in the database , and the historical data is of great significance to the safety research of the launching process .

The invention relates to a short - range wireless communication technology , which is characterized by low cost , low power consumption , self - networking and the like . The lower part of the system is a wireless network based on ZigBee , and comprises three parts of a collection node , a repeater and a collector .

LabVIEW is a graphical programming language , which has the characteristics of friendly interface , simple operation , short development period and so on . It is widely used in simulation , data acquisition , instrument control , measurement analysis and data display of various industries . The upper computer part of the system is LabVIEW - based security monitoring system software running on the PC Windows operating system . The upper computer can realize the following functions : 1 ) communicate with the lower computer through RS232 , and receive the data of hexadecimal string transmitted by the lower computer in real time ;
2 ) carrying out operation on the received character string , displaying the number and the pressure value of the air bag , and displaying the pressure value of the air bag on the waveform chart ;
and 3 ) realizing the management of the data by connecting with the database and completing the preservation and viewing of the historical data .

【学位授予单位】：广东工业大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TP274.2;TN06

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