异构无线网络定位教育机器人  

Heterogeneous Wireless Network Positioning Educational Robot

作　　者：罗文兴 文有美 LUO Wen-xing;WEN You-mei(National Engineering Research Center for E-Learning,Central China Normal University,Wuhan Hubei 430079,China;Qiannan Normal University for Nationalities,Duyun Guizhou 558000,China)

机构地区：[1]华中师范大学国家数字化学习工程技术研究中心,湖北武汉430079 [2]黔南民族师范学院,贵州都匀558000

出　　处：《通信技术》2018年第6期1430-1437,共8页Communications Technology

基　　金：华中师范大学中央高校基本科研业务费教育科学专项资助"基于教育机器人平台的智能解答与导学系统"(No.ccnu16JYKX005)~~

摘　　要：根据移动式教育机器人室内交互应用需要,定位服务对象具体位置尤为重要。因此,提出了一种基于WiFi和RFID异构无线网络的融合定位的方法。无线接入路由器(APs)网络采用等边三角形结构布局,电子标签(Tags)采用一种特殊阵列(正六边形+正四边形+中心点)布局,利用WiFi信号为机器人提供初略定位,之后利用RFID信号提供精确定位,定位机器人过程中采用接收信号强度(RSS)作为指纹信息,提出了基于数据库RSS能量最强深度优先搜索算法,并通过RSS能量增强作为导航决策,引导移动教育机器人到达指定服务目标。According to the interactive application needs of mobile educational robot, it is particularly important to locate the specific location of the service object. A heterogeneous wireless network based on Wi Fi and RFID is proposed. A special array（regular hexagon ＋ regular tetragon ＋ center point） is used to layout the electronic tags, while an equilateral triangle structure used to layout wireless access point（AP）. Firstly, the Wi Fi signal is used to provide the approximate positioning for the robot, and then the RFID signal is used to provide accurate positioning. RSS is used as the fingerprint information in the process of robot positioning, and the strongest depth first search algorithm based on database RSS energy is proposed. With RSS energy change as navigation decision, the mobile educational robot is guided to the designated service target.

关 键 词：教育机器人 无线指纹 WIFI RFID RSS 

分 类 号：TP249[自动化与计算机技术—检测技术与自动化装置]