CAJ | 학술논문

蓝牙4.0技术已经广泛应用于手机、平板电脑等移动终端设备，使得利用其实现室内定位具有极其广阔的应用前景。通过对蓝牙4.0技术的研究，根据蓝牙4.0 RSSI损耗特征进行接近度分类，提出一种限定区域k-近邻改进算法。实验结果表明，运用优化后的RSSI指纹定位算法室内定位平均误差可达到dm级，可充分满足商用室内LBS“m级”的定位精度和“s级”响应的需求。
람아4.0기술이경엄범응용우수궤、평판전뇌등이동종단설비，사득이용기실현실내정위구유겁기엄활적응용전경。통과대람아4.0기술적연구，근거람아4.0 RSSI손모특정진행접근도분류，제출일충한정구역k-근린개진산법。실험결과표명，운용우화후적RSSI지문정위산법실내정위평균오차가체도dm급，가충분만족상용실내LBS“m급”적정위정도화“s급”향응적수구。
Bluetooth 4. 0 technology has been Widely used in mobile phone, tablet computer and mobile terminal equipment. MeanWhile, it makes using of the indoor position has a very broad application prospects. In this report, according to the investigation of the Bluetooth 4. 0 technology, to classify as close degree in terms of the loss characteristics of Bluetooth 4. 0 RSSI, it proposes an improved algorithm to define the region k—nearest neighbor. Using the optimized algorithm of RSSI fingerprint positionto makes average error of indoor position reach decimeter level. Thus it fully satisfies commercial demand in terms of position accuracy of indoor LBS “decimeter level” and response of “Second level”.