中圖分類號(hào)： TN99
文獻(xiàn)標(biāo)識(shí)碼： A
DOI：10.16157/j.issn.0258-7998.211349
中文引用格式： 韓一石，曾祥威，李賢，等. 一種基于LoRa的動(dòng)態(tài)識(shí)別和樓層判定方法[J].電子技術(shù)應(yīng)用，2021，47(8)：81-86.
英文引用格式： Han Yishi，Zeng Xiangwei，Li Xian，et al. A dynamic identification and floor determination method based on LoRa[J]. Application of Electronic Technique，2021，47(8)：81-86.

A dynamic identification and floor determination method based on LoRa

Abstract： Aiming at the problems of high complexity and low accuracy of vertical floor determination algorithm in indoor three-dimensional positioning, this paper proposes a dynamic identification and floor determination method based on LoRa.First of all, this article on-demand deploys vertical positioning equipment within the building.And then, it sets up the indoor stairs LoRa signals in each layer fingerprint and draws corresponding to the different characteristics of signal strength floor for determining threshold. Finally, by combining with LoRa-RSSI dynamic identification and determination methods, it captures real-time change of indoor wireless signal strength in dynamic condition， achieves dynamic identification of up and down the stairs，and enhances the accuracy in floor to judge.The experimental results show that the recognition accuracy of this method reaches 97.9%,and it is simple to implement and less affected by the external environment , which could be deployed quickly on demand.Combined with the indoor two-dimensional positioning technology, this method provides a new method and idea for indoor three-dimensional positioning of people and objects.

Key words : floor determination；dynamic identification；LoRa；RSSI；rapid deployment