1. 长春理工大学机电工程学院
2. 吉林大学白求恩第一医院血液科
3. 吉林大学白求恩第一医院小儿呼吸科
纸质出版:2025
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乔星舒, 刘亚东, 廖成奥, 等. 基于腕部穿戴设备的人体跌倒检测系统设计[J]. 传感器与微系统, 2025,(3):111-116.
乔星舒, 刘亚东, 廖成奥, 等. 基于腕部穿戴设备的人体跌倒检测系统设计[J]. 传感器与微系统, 2025,(3):111-116. DOI: 10.13873/J.1000-9787(2025)03-0111-06.
为了降低住院患者跌倒产生的严重后果,本文设计一种腕部穿戴的实时跌倒检测系统,系统以微处理器NRF52840为核心,采用惯性传感器LSM6DSOX和气压计BMP390采集数据。本文提出一种基于合角速度判断设备静止时刻来校准气压计估计的高度变化的方法,获得了更准确的高度变化数据。在算法上,本文提出改进的事件检测方法和决策树模型结合的方法,提高了跌倒检测的准确率。设备最终在床上跌倒、向前跌倒等4种跌倒和走、鼓掌、侧平举等9种日常行为的分类中实现了97.94%的准确度,可帮助护士实现对跌倒住院患者及时救助。
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