电讯技术2018，Vol.58Issue(3)：326-331,6.DOI:10.3969/j.issn.1001-893x.2018.03.015
一种结合RSSI假设检验的防丢算法
An Anti-lost Algorithm Based on RSSI Hypothesis Test
摘要
Abstract
With the increase of outdoor activities,the anti-lost demand grows rapidly.A method based on low power bluetooth(BLE) received signal strength indicator(RSSI) becomes a compelling alternative.It has the advantages of low power consumption,low cost,etc.However,the bluetooth RSSI signal is easily disturbed,making it difficult for practical application.In the view of this,an anti-lost algorithm is proposed based on RSSI hypothesis test.Firstly,a large number of RSSI sampling sequences are captured and ana-lyzed.It爷s found that almost all of the RSSI samples are consistent with the normal distribution.Then a hy-pothesis test is designed for the RSSI sequence dynamically. Next,a corresponding state machine is de-signed to dynamically determine the relative position of the host and slave.Finally,according to the previ-ous information,whether the position is safe can be judged.The experiments and evaluation results show that the algorithm can achieve a good anti - lost performance.关键词
防丢算法/低功耗蓝牙/信号强度指标/假设检验/状态机Key words
anti-lost algorithm/low power bluetooth(BLE)/received signal strength indicator(RSSI)/hy-pothetical test/state machine分类
信息技术与安全科学引用本文复制引用
石劲松,刘振钧,郭庆,龚有华..一种结合RSSI假设检验的防丢算法[J].电讯技术,2018,58(3):326-331,6.
