基于低轨卫星通信和蜂窝移动通信的冷藏集装箱监控终端开发

发布时间：2018-04-02 03:36

本文选题：冷藏集装箱　切入点：监控终端　出处：《深圳大学》2017年硕士论文

【摘要】：随着冷链运输需求的日益旺盛,冷藏集装箱运输业务随之扩大,其运输过程中的安全性问题越来越受到人们的重视,故实现对冷藏集装箱的远程监控具有重大意义。现有冷藏集装箱远程监控技术方案大都只基于有线网络通信或蜂窝移动通信实现远程数据传输,然而由于基站分布、信号干扰等因素导致无法实现偏僻及远海区域内的数据传输。对此,本文开发一种基于低轨卫星通信和蜂窝移动通信的冷藏集装箱监控终端(冷箱卫士),以实现对冷藏集装箱在全球范围内无盲区远程监控。本文开发的冷藏集装箱监控终端综合运用了嵌入式技术、GPS定位技术、串行通信技术、低轨卫星通信技术和蜂窝移动通信技术等,以STM32作为中央处理器,利用GPS定位模块采集位置信息、RS232串口采集冷机控制器信息、外扩传感器模块采集冷藏集装箱状态信息,再利用低轨卫星通信或蜂窝移动通信传输冷藏集装箱信息数据包,最终将数据包上传至后台数据中心进行处理,从而实现对冷藏集装箱的远程监控。本文设计了冷藏集装箱监控终端的电源管理模块、GPS定位模块、冷机数据采集模块、外扩传感器模块、蜂窝通信模块、卫星通信模块等部分的硬件电路;基于μC/OS-II实时操作系统,利用C/C++完成了GPS位置数据采集程序、冷机数据采集程序、外扩传感器数据采集程序、蜂窝通信数据传输程序、卫星通信数据传输程序等部分的软件设计;搭建了冷藏集装箱监控终端功能测试平台,进行了样机硬件检测和软件调试、样机功能性测试、样机可靠性测试,验证了样机在正常环境和特定环境下具备定位功能、冷机数据采集功能、蜂窝移动通信功能及低轨卫星通信功能等,此外,进行了样机安装测试,结果表明样机功能正常,满足开发要求。本文开发的冷藏集装箱监控终端有利于冷链运输装备更加智能化,为实现对冷藏集装箱运输的全球化监控提供了技术方案;此外,预留了一定数量的接口用于监控终端进一步地扩展和完善功能。
[Abstract]:With the increasing demand of cold chain transportation, the refrigerated container transportation business expands, and the security problem in its transportation process is paid more and more attention. Therefore, it is of great significance to realize remote monitoring of refrigerated containers. Most of the existing remote monitoring schemes of refrigerated containers are only based on wired network communications or cellular mobile communications. However, because of the distribution of base stations, Factors such as signal interference make it impossible to transmit data in remote and distant sea areas. In this paper, a cold storage container monitoring terminal based on Leo satellite communication and cellular mobile communication is developed to realize the remote monitoring of refrigerated container without blind area in the whole world. The refrigerated container developed in this paper is a refrigerated container. The monitoring terminal synthetically uses the embedded technology and GPS positioning technology. Serial communication technology, low-orbit satellite communication technology and cellular mobile communication technology, with STM32 as the central processor, using GPS positioning module to collect position information and RS232 serial port to collect the information of the cooler controller. The extended sensor module collects the status information of the refrigerated container, then transmits the information packet of the refrigerated container using low-orbit satellite communication or cellular mobile communication, and finally uploads the data packet to the background data center for processing. In order to realize the remote monitoring of refrigerated container, this paper designs the power management module of refrigerated container monitoring terminal, the GPS positioning module, the data acquisition module of cooling machine, the expanding sensor module and the cellular communication module. The hardware circuit of satellite communication module, based on 渭 C/OS-II real-time operating system, using C / C to complete GPS position data acquisition program, cooling machine data acquisition program, external sensor data acquisition program, cellular communication data transmission program, The software design of satellite communication data transmission program, the function test platform of refrigerated container monitoring terminal, the hardware test and software debugging of prototype, the functional test of prototype, the reliability test of prototype, etc. It is verified that the prototype has the functions of positioning, data acquisition, cellular mobile communication and Leo satellite communication in the normal and special environment. In addition, the prototype installation test is carried out, and the results show that the prototype function is normal. To meet the requirements of development. The cold chain container monitoring terminal developed in this paper is conducive to more intelligent cold chain transport equipment, and provides a technical solution for the global monitoring of refrigerated container transport. A certain number of interfaces are reserved for the further expansion and improvement of the function of the monitoring terminal.
【学位授予单位】：深圳大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TB658;TN927.2;TN929.53

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