Helping the blind to find the floor of destination in multistory buildings using a barometer.
Helping the blind to find the floor of destination in multistory buildings using a barometer.
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DOI：
10.1109/embc.2013.6610606
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
Sun M
中科院分区：
文献类型：
--
作者：
Bai Y;Jia W;Zhang H;Mao ZH;Sun M
在智能手机和其他移动的设备的快速技术进步的推动下，盲人和视障人士的室内导航已成为一个活跃的研究领域。可靠的定位和导航系统将减少这些人的痛苦，帮助他们更加独立地生活，并促进他们的就业。虽然已经取得了很大的进展，但多层建筑中的楼层定位在很大程度上是一个未解决的问题，尽管它在帮助盲人找到他们的方式方面具有重要意义。在本文中，我们提出了一种新的方法，使用一个微型气压计的形式，一个低成本的MEMS芯片。描述了大气压力、绝对高度和楼层位置之间的关系，并给出了沿着的实时标定方法和硬件平台设计。我们在一栋12层楼的建筑物中进行的实验表明，我们的方法具有很高的性能。
Propelled by rapid technological advances in smart phones and other mobile devices, indoor navigation for the blind and visually impaired individuals has become an active field of research. A reliable positioning and navigation system will reduce suffering of these individuals, help them live more independently, and promote their employment. Although much progress has been made, localization of the floor level in a multistory building is largely an unsolved problem despite its high significance in helping the blind to find their ways. In this paper, we present a novel approach using a miniature barometer in the form of a low-cost MEMS chip. The relationships among the atmospheric pressure, the absolute height, and the floor location are described along with a real-time calibration method and a hardware platform design. Our experiments in a building of twelve floors have shown high performance of our approach.