Acoustic Indoor Position System

声学室内定位系统

• 批准号: 566755-2021
• 负责人: McInnis, Jamie
• 金额: $ 5.46万
• 依托单位: Southern Alberta Institute of Technology
• 依托单位国家: 加拿大
• 项目类别: Applied Research and Development Grants - Level 2
• 财政年份: 2021
• 资助国家: 加拿大
• 起止时间: 2021-01-01 至 2022-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=724839
• 关键词: Acoustic; Indoor; Position; System

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.

大型零售商面临着客户服务挑战：由于空间如此之大，而且物品因各种原因而四处移动，因此很难找到商品。这给消费者带来了挫败感。 Takemetuit（TMTI）拥有智能设备室内实时定位系统（RTLS）。该平台在 99.6% 的时间内将人们导航到任何物品的 3 维 10 厘米以内。没有其他 RTLS 技术具有如此高的准确性和可靠性。 TMTI 面临的挑战是降低安装成本。该技术利用声波传播的特性，使智能手机能够确定其在受控环境中的位置。采用 200Hz 至 20KHz 范围内的声音频率，使应用程序能够在普通智能手机上有效运行，而无需专门的硬件。 2016 年，在与南阿尔伯塔理工学院 (SAIT) 创新信息技术中心 (CIITS) 合作完成的 NSERC Engage 应用研究项目中，成功实施了该系统的概念验证。该系统在第二个 SAIT CIITS 为期两年的 NSERC ARD2 项目中得到了简化，该项目于 2020 年初结束。同一团队改进了该工具，并在智能手机上实施了概念验证。 开发了基本组件以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）系统已接近商业部署。目标是将产品从技术成熟度 (TRL) 8 级提升到 TRL 9（商业产品）。