智能冰箱关键技术研究

刘尚旺+尚新闻

摘 要： 针对传统冰箱缺乏智能性，难以满足物联网时代需求的问题，提出一种智能冰箱原型系统。该系统集成冰箱端开发板、移动客户端及服务器端应用程序的设计与实现。冰箱端选用基于OK6410的ARM11开发板，通过WinCE系统将收集到的食品数据实时传输给远程服务器，并将其保存到数据库中；数据库服务器端，提出最优时隙防冲突算法，根据标签数目分配帧长，使得所有标签分得帧长时隙以解决多标签同时读/写数据碰撞问题；客户端用户通过无线保真（WiFi）网络、移动通信网络等连接到远程服务器，随时随地管理冰箱。仿真实验结果表明，所设计与实现的冰箱食品信息远程查看与管理、饮食搭配菜谱智能推荐、冰箱周期清理和食品保鲜期限实时提醒等功能科学、合理和实用。

关键词： 智能冰箱； 物联网； 冰箱端开发板； 移动客户端； 服务器端； 最优时隙防冲突算法

中图分类号： TN915?34； TP399 文献标识码： A 文章编号： 1004?373X（2018）06?0112?05

Abstract： In allusion to the problem that it is difficult for the traditional refrigerator to meet the demand of Internet of Things （IoT） era due to its lack of intelligence， a prototype system of intelligent refrigerator is proposed. In the system， the refrigerator development board is integrated， and application programs of mobile client and server are designed and implemented. On the refrigerator side， the OK6410 based ARM11 development board is selected， and the collected food data is transmitted to the remote server in real time by means of Wince system， and then stored in the database. On the database server side， the optimal time slot anti?collision algorithm is proposed. The frame length is distributed based on the label number so that all tags can obtain the frame length time slot to resolve the data collision problem when multiple tags are read or written simultaneously. On the client side， users are connected to the remote server via wireless fidelity （WiFi） network， mobile communication network and other means to manage the refrigerator anywhere and anytime. The simulation experiment results show that the functions designed and implemented in this paper such as remote view and management of refrigerator food information， intelligent recommendation of diet collocation menu， periodic refrigerator cleaning and real?time reminding of food freshness lifetime are scientific， reasonable and practical.

Keywords： intelligent refrigerator； IoT； refrigerator development board； mobile client side； server side； optimal time slot anti?collision algorithm

0 引 言

物联网时代，事关饮食的智能冰箱显得尤为重要。目前，冰箱已从单纯的食品保鲜和储存载体转变成为基于ARM等开发板进行检测、识别、监控和存储信息[1]的智能冰箱。自从2000年韩国LG公司推出全球第一台“互联网”冰箱以来，就掀起了智能冰箱的研究热潮。但是，目前智能冰箱还存在一些问题。为此，本文旨在提高传统冰箱智能化，设计、实现出一种智能冰箱原型系统即智能冰箱管家系统，即通过传感器节点和射频识别技术采集相关数据，在数据库服务器上通过智能算法完成数据的智能处理，用户通过移动终端设备接入局域网或通过移动蜂窝网访问服务器，即可查看、接收智能化处理结果或远程操控冰箱。……