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首页> 外文会议>International Conference on Electronics, Computers and Artificial Intelligence >RSSI Based Localization of Bluetooth Devices Using Trilateration: An Improved Method for the Visually Impaired
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RSSI Based Localization of Bluetooth Devices Using Trilateration: An Improved Method for the Visually Impaired

机译：基于三边测量的基于RSSI的蓝牙设备本地化：一种针对视障人士的改进方法

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摘要

The instantaneous and spatial localization for visually impaired people in dynamically changing environments with unexpected hazards and obstacles, is the most demanding and challenging issue faced by the navigation systems today. Although time difference of arrival (TDOA), time of arrival (TOA) and received signal strength (RSS) have been used in literature multiple times for positioning, but narrow band signals such as Bluetooth cannot efficiently utilize TDOA or TOA. Received signal strength indicator (RSSI), to measure RSS, has been found to be more suitable in this case. It has been found that the estimations using RSSI can be improved significantly by improving the existing methodologies related to RSSI. Therefore, the current paper focuses on proposing an improved method using trilateration for localization of Bluetooth devices for visually impaired people. To validate the method, class 2 Bluetooth devices were used along with the development of a software. Experiments were then conducted to obtain surface plots that showed the signal interferences and other environmental effects. Finally, the results obtained were discussed.
机译：在具有意外危险和障碍的动态变化环境中，视障人士的瞬时和空间定位是当今导航系统面临的最严苛和最具挑战性的问题。尽管文献中已多次使用到达时间差（TDOA），到达时间（TOA）和接收信号强度（RSS），但是诸如蓝牙之类的窄带信号无法有效利用TDOA或TOA。已经发现，在这种情况下，用于测量RSS的接收信号强度指示器（RSSI）更合适。已经发现，通过改进与RSSI相关的现有方法，可以显着改善使用RSSI的估计。因此，当前的论文集中于提出一种改进的方法，该方法使用三边测量技术对视力障碍者的蓝牙设备进行定位。为了验证该方法，在开发软件时使用了2类蓝牙设备。然后进行实验以获得表明信号干扰和其他环境影响的表面图。最后，讨论了获得的结果。

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