Acoustic Indoor Position System

大型零售商面临着客户服务方面的挑战：由于空间如此之大，商品因各种原因四处移动，因此很难找到商品。这给消费者带来了挫败感。Takemetuit（TMTI）拥有一个智能设备室内实时定位系统（RTLS）。在99.6%的时间里，该平台将人们导航到任何物品的三维尺寸在10厘米以内。没有其他RTLS技术具有这种级别的准确性和可靠性。TMTI面临的挑战是降低安装成本。这项技术利用声波传播的特性，使智能手机能够在受控环境中确定自己的位置。使用200Hz到20KHz范围内的可听声学频率，使应用程序可以在没有专门硬件的普通智能手机上有效运行。2016年，NSERC与南阿尔伯塔理工学院（SAIT）创新信息技术中心（CIITS）合作完成了一个应用研究项目，成功验证了该系统的概念。该系统在第二个SAIT citits为期两年的NSERC ARD2项目中得到了精简，该项目于2020年初结束。该团队改进了该工具，并在智能手机上实现了概念验证。开发了基本组件，将物理层定位引擎嵌入到适合购物者使用的用户应用程序中。声学室内定位系统（AIPS）系统已接近商用部署。目标是将产品从技术准备级别（TRL） 8移动到TRL 9，即商业产品。

Big-box retailers have a customer service challenge: it's hard to find merchandise due to such large spaces and items that are moved around for a variety of reasons. This creates frustration for consumers. Takemetuit(TMTI) has a smart-device indoor real-time location system or RTLS. The platform navigates people to within 10cm in 3 dimensions of any item, 99.6% of the time. There is no other RTLS technology with this level ofaccuracy and reliability. TMTI's challenge is to reduce the installation cost. The technology exploits theproperties of acoustic wave propagation to enable a smartphone to determine its location within a controlledenvironment. Audible acoustic frequencies in the range of 200Hz to 20KHz are employed to allow theapplication to function effectively on a regular smartphone without specialized hardware. A successful proof ofconcept for the system was implemented in 2016 in a completed collaborative NSERC Engage applied researchproject with the Southern Alberta Institute of Technology's (SAIT) Centre for Innovative InformationTechnology (CIITS). The system was streamlined in a second SAIT CIITS two-year NSERC ARD2 projectthat ended in early 2020. The same team refined the tool and a proof of concept was implemented on a smart phone. Fundamental components were developed to embed the physical layer positioning engine within a user application suitable for use by a shopper. The acoustic indoor positioning system (AIPS) system is close tocommercial deployment. The goal is to move the product from technology readiness level (TRL) 8 to TRL 9, a commercial product.