基于eCos的自动售货机无线通信设计与应用

发布时间：2018-06-22 06:11

本文选题：自动售货机 + eCos　；参考：《浙江工业大学》2011年硕士论文

【摘要】：随着时代变迁和社会发展,以方便、快捷和自助式服务为特点的自动售货机得到迅猛发展,而嵌入式技术的不断进步,又推动了自动售货机逐步发展成为具有智能、自助的电子商务系统,其实现基础则是互联网通信技术及其联网管理技术。本文首先简要介绍自动售货机的研究现状和发展趋势,结合客户需求和当前无线城市的发展特点,针对现有的自动售货机多数采用GSM或GPRS为无线通信方式,其后期维护管理成本较高的特点,将WiFi技术首次引入自动售货机不仅使得其具有较好的移动性,并可充分利用客户自身网络进行个性化管理。系统硬件采用主从式结构设计,使用具有多主机功能的CAN-bus总线连接主控制板和驱动控制板,并以此为基础实现了销售集群的概念,其中主控制板使用32位的ARM控制器,并集成MDB通信模块和USB Host等模块,在实现了基本的销售功能基础上,提供了基于U-disk或者WiFi销售数据管理功能。由于网络通信的复杂性和自动售货机具有模块多、实时性要求高等特点,采用了实时性好、驱动程序丰富的开源嵌入式可配置操作系统eCos,并在其驱动框架下编写以太网、Flash、USB Host等相关模块驱动程序。通过分析IEEE802.11等通信技术,实现了有线通信和基于WiFi无线网卡的无线通信方式,并为中小型客户提供采用GoAhead嵌入式WEB服务器而实现的远程设置、访问能力,较使用专有软件更加便利。终端控制系统的软件设计开发均采用开源软件,符合当前的发展趋势。最后,对产品进行了功能性测试和总结,结果表明本设计不仅增加了产品网络管理的便利性,而且有效提高了产品的经济效益,有助于自动售货机的进一步推广。
[Abstract]:With the change of times and the development of society, vending machines characterized by convenient, fast and self-service have been developed rapidly, and the continuous progress of embedded technology has promoted the development of vending machines with intelligence. Self-help e-commerce system is based on internet communication technology and its network management technology. Firstly, this paper briefly introduces the research status and development trend of vending machines, combined with customer demand and the development characteristics of wireless cities, most of existing vending machines adopt GSM or GPRS as wireless communication mode. WiFi technology is introduced into vending machine for the first time because of its high cost of later maintenance and management. It not only has good mobility, but also can make full use of the customer's own network for personalized management. The hardware of the system is designed with master-slave structure, and the CAN-bus with multi-host function is used to connect the main control board and the drive control board. Based on this, the concept of sales cluster is realized, in which the main control board uses 32-bit arm controller. With the integration of MDB communication module and USB Host module, on the basis of the basic sales function, the function of selling data management based on U-disk or WiFi is provided. Because of the complexity of network communication and the characteristics of vending machine with many modules and high real-time requirements, the vending machine has good real-time performance. The driver is rich in open source embedded configurable operating system eCos. and under its driver framework, the driver of Ethernet Flash USB Host and other related modules is written. Through the analysis of IEEE 802.11 and other communication technologies, the wireless communication mode based on WiFi wireless card and wired communication is realized, and the remote setting and access ability of small and medium-sized customers using GoAhead embedded Web server is provided. It is more convenient than using proprietary software. The software design and development of terminal control system are based on open source software, which is in line with the current development trend. Finally, the functional test and summary of the product are carried out. The results show that the design not only increases the convenience of product network management, but also effectively improves the economic benefit of the product, which is helpful to the further promotion of vending machine.
【学位授予单位】：浙江工业大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH692.6

【引证文献】