Blind Navigation Using Magnetic Anomaly Detection Augmented with Inertial Sensors

描述(由申请人提供)：Koronis Biomedical Technology Corporation(KBT)建议开发一种室内定向设备，该设备采用基于磁异常检测的新型室内定位技术，并增加了惯性航位推算技术。独特的磁异常分布存在于现代人造结构中，并已被证明在时间上是稳定的，并具有空间和磁场强度特性，使其能够用作室内定位技术的基础。通过将小型穿戴式磁强计的读数与存储的异常电子地图进行比较，可以在不需要专用基础设施的情况下推断室内位置。KBT认为，利用惯性航位推算技术增强磁异常检测将产生更稳健的解决方案，并将降低定位算法的计算复杂性，使系统能够在适度的移动平台上运行。在这一阶段的SBIR计划中，KBT计划基于这两项技术的融合，开发一款小型室内个人导航辅助设备，以支持盲人/低视力旅行。这种设备的商业化将对我们社会的很大一部分市场的独立性和生活质量产生立竿见影的好处，因为世界卫生组织估计，超过1200万美国公民患有某种形式的未矫正视力损失，到2030年，这些预测将翻一番。在第一阶段的SBIR项目中，KBT将开发一种可投入生产的个人导航设备，支持室内路线导航和基于位置的信息。我们方法的一个关键优势是，我们的设备不需要进行建筑改造，并将围绕现有的商业辅助技术平台进行开发。 与公众健康相关：该项目的目标是开发一种个人室内导航设备，使用带有航位推算技术的磁异常检测。

DESCRIPTION (provided by applicant): Koronis Biomedical Technology Corporation (KBT) proposes to develop an indoor wayfinding device utilizing a novel indoor location technology based on magnetic anomaly detection, and augmented with inertial dead-reckoning technology. Unique magnetic anomaly distributions exist within modern man- made structures and have been demonstrated to be temporally stable and have spatial and magnetic strength properties that enable their use as the basis for an indoor location technology. By comparing the readings of a small body-worn magnetometer to a stored electronic map of the anomalies, indoor location can be inferred without the requirement of dedicated infrastructure. KBT believes that augmenting magnetic anomaly detection with inertial dead-reckoning technology will produce a more robust solution and will reduce the computational complexity of the location algorithms enabling the system to run on modest mobile platforms. In this phase I SBIR program, KBT proposes to develop a small indoor personal navigation aid to support blind/low-vision travel based on the fusion of these two technologies. The commercialization of such a device would have immediate benefit on the independence and quality of life for a large market segment of our society, as the World Health Organization estimates over 12 million U.S. citizens have some form of uncorrected vision loss, with these projections doubling by the year 2030. In this phase I SBIR project, KBT will develop a production- ready personal navigation device that supports indoor route guidance and location-based information. A key advantage of our approach is that our device does not require building modifications and will be developed around an existing commercial assistive technology platform. PUBLIC HEALTH RELEVANCE: The goal of this project is to develop a personal indoor navigation device using magnetic anomaly detection augmented with dead-reckoning technology.