I-Corps: Simple, Highly Accurate Indoor Location Using only WiFi

这个i-Corp团队项目研究了一种只使用现有WiFi信号的高精度(在3维空间中优于1M)室内定位技术。这项技术采用的WiFi信号传感器独立运行，无需将传感器相互物理链接，并简化了该技术的安装。该技术的核心是一种算法，它利用集群接收机提供到达时间差(TDOA)信息，而不需要任何形式的定时同步，解决了基于TDOA的高精度定位的主要技术挑战。分簇TDOA定位算法？该系统的核心，可以通过实现高精度精度来解决现有基于位置的服务(LBS)的挑战。对于单个用户？该技术利用智能手机中现有的WiFi硬件，因此只需要安装软件应用程序。这项技术的广泛使用可以实现室内LBS的快速增长，这在很大程度上影响了零售点以广告为中心的消费者服务。

This I-Corp Team project investigates a high-precision (better than 1m in a 3-dimensional space) indoor location technology that uses only existing WiFi signals. The WiFi signal sensors employed by this technology operate independently, which eliminates the need to physically link sensors to each other and simplifies the installation of the technology. The core of this technology is an algorithm that employs clustered receivers to provide time-difference-of-arrival (TDOA) information without requiring timing synchronization of any kind, resolving the major technical challenge of TDOA- based high precision positioning. The clustered TDOA localization algorithm ? the core of this system, may resolve the challenges of existing location-based services (LBS) by enabling high-precision accuracy. For the individual user ? the technology utilizes existing WiFi hardware in SmartPhones, and therefore only requires installation of a software application. Widespread use of this technology could enable rapid growth of indoor LBS, which largely impacts advertising-centric services to consumers at retail points of sale.