基于指纹匹配和模糊推理的虚拟定位系统设计
Design of virtual localization system based on fingerprint matching and fuzzy inference
黄红益 1徐圆 1朱群雄1
作者信息
- 1. 北京化工大学 信息科学与技术学院,北京 100029
- 折叠
摘要
为让应急演练过程中参演人员与真实环境进行交互,提升演练过程中灾害的处理水平,提出基于指纹数据和模糊推理的虚拟定位系统.以移动Android设备为平台,根据真实环境构建虚拟三维世界,通过扫描空间环境某一位置的WIFI信号来获取特征指纹,构建指纹特征与坐标位置的映射关系,定位系统根据该逻辑映射进行位置的估计.系统运行结果表明,基于模糊推理的指纹匹配算法能够真实反映距离的远近,虚拟移动平台摆脱了传统的交互方式,提高了移动定位的灵活性和真实感,该系统已经成功运用于某高校大楼的虚拟参观系统,取得了显著的效果.
Abstract
To get more interactions with real environment and improve the ability in dealing with disaster for participators in emergency drill, a virtual localization system based on fingerprinting and fuzzy inference was proposed.This system ran on the mobile android platforms, a virtual 3D world was constructed according to real scene before gathering WIFI signals' fingerprints by scanning signal sources at different points.The relationships between positions and its' fingerprints were built, these logic relationships were used to simulate the distances between fingerprints.Results of the system indicate that the fingerprint matching algorithm based on fuzzy inference has the ability to represent distances among a series of fingerprints.The virtual reality system gets rid of traditional interactive methods and gives participators great flexibility and the sense of reality.The system has been successfully applied in a visit system in the tech-building in a university and remarkable experience is gained.
关键词
室内定位/指纹匹配/模糊推理/加权质心/虚拟现实Key words
indoor localization/fingerprint matching/fuzzy inference/weighted centroid/virtual reality引用本文复制引用
基金项目
北京市自然科学基金(4142039)
北京市优秀人才培养基金(2013D009016000004)
出版年
2017
NETL
NSTL
维普
万方数据