文档字数:12896,页数:52

基于RFID的超市手持预结账付款终端
摘  要

 超市作为一种经营业态诞生于20世纪的美国。1990年广东东莞虎门镇诞生了我国第一家超市——美佳超级市场，随后国内的超市如雨后春笋般涌现。1996年后一批世界级大型超市（家乐福、沃尔玛等）相继进入中国，与此同时，各地纷纷出现区域性的单体或连锁超市，如上海华联、武汉中百超市等。从此，超市的进入快速发展轨道，年增长速度达到70%。
 基于RFID的超市预结账付款终端作为很有意义的嵌入式电子产品，也是很多超市现在需要的，能有效解决排队问题的必备产品，功能十分强大。在本次设计的系统中，采用了物联网技术（ＲＦＩＤ射频识别），将商品数字化。系统能加快排队结账速度，还能帮助顾客们进行有效超市导航，快速找到想要的商品和位置。
 本文论述了基于ＲＦＩＤ的超市预结账付款终端的完整解决方案。

关键字：超市　物联网　排队　ＲＦＩＤ射频识别　地图导航　

RFID-based Supermarket checkout pre-payment terminal
ABSTRACT

 Supermarket business conditions as an American born in the 20th century. Humen Town, Dongguan, Guangdong in 1990 gave birth to the first supermarkets in China - United States and good supermarkets, followed by domestic supermarkets have sprung up. After 1996, a group of world-class supermarkets (Carrefour, Wal-Mart, etc.) have entered China, meanwhile, have been appearing around the monomer or regional supermarket chains, such as Shanghai Hualian, Supply Chain Management such as supermarkets. Since then, the supermarket to enter the fast development track, the annual growth rate reached 70%.
 RFID-based supermarket checkout pre-payment terminal as a meaningful pre-embedded electronic products, but also many supermarkets are now needed, can effectively solve the problem of the essential product line, is very powerful. In this design the system, using the Internet of Things technology (RFID radio frequency identification), the digital goods. System can speed up the checkout line speed, but also help customers effectively navigate the supermarket, the goods and quickly find the desired location.
 This article discusses the RFID-based supermarket checkout pre-payment terminal complete solution.
Keywords: Supermarket  The Internet of Things  Queue
RFID Radio Frequency Identification  Map navigation

目  录
摘  要 I
ABSTRACT II
1  绪论 1
1.1项目背景 1
1.1.1项目来源 1
1.1.2 需求分析 2
1.1.3 国内外研究现状 4
1.2 可行性分析 4
1.2.1硬件平台技术支持的可行性分析 5
1.2.2软件开发技术的可行性分析 5
2 系统方案 6
2.1 运作流程 6
2.2主要功能 6
2.3 系统模块 7
2.4 模块功能详细描述 7
3  流程图 9
3.1 用户登陆实现 9
3.2 超市预结账实现 10
3.3 超市收银实现 12
3.4 超市导航实现 13
4  硬件设计 14
4.1系统模块与硬件设计 14
4.2开发平台PXA270 14
4.3 RFID读卡器 17
4.4　RFID卡 18
5  软件设计 19
5.1 串口委托实现原理 19
5.2加密与解密实现 20
5.3 超市导航设计——最短路径算法 21
6  系统测试 23
6.1系统测试方案 23
6.2 测试设备 23
6.3 测试平台的搭建 24
6.3.1 Wince系统移植 24
6.6.2 Wince开机自启动： 26
6.4 结果分析 27
6.4.1 系统登陆 27
6.4.2 手持预结算 29
6.4.3 超市收银 32
6.4.4超市地图导航 34
6.4.5 测试总体分析 37
7  总结 38
参考文献 40
附  录 41
谢  辞 47

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