| 基于超声多普勒效应的浴室跌倒检测 |
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| 引用本文： | 张大钧,兰恒荣,吴幼龙. 基于超声多普勒效应的浴室跌倒检测[J]. 上海师范大学学报(自然科学版), 2018, 47(2): 225-229 |
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| 作者姓名： | 张大钧 兰恒荣 吴幼龙 |
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| 作者单位： | 上海科技大学信息科学与技术学院 |
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| 摘 要： | 提出了一种使用20 k Hz超声波检测浴室跌倒状况的方法,并进行了浴室环境中的测试.由于跌倒会造成失重,身体运动速度增大,导致产生多普勒效应,造成反射的超声频率的偏移.根据这一频移判断人是否跌倒,并采取相关措施,可以在保护隐私的前提下结合浴室的特点保护人们的健康和安全,为智能医疗的发展打下良好的基础.
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| 关 键 词： | 跌倒检测 浴室 超声 多普勒效应 |
| 收稿时间： | 2018-01-25 |
Bathroom fall detection based on ultrasonic Doppler effect |
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| Zhang Dajun,Lan Hengrong and Wu Youlong. Bathroom fall detection based on ultrasonic Doppler effect[J]. Journal of Shanghai Normal University(Natural Sciences), 2018, 47(2): 225-229 |
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| Authors: | Zhang Dajun Lan Hengrong Wu Youlong |
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| Affiliation: | School of Information Science and Technology, ShanghaiTech University, Shanghai 201210, China,School of Information Science and Technology, ShanghaiTech University, Shanghai 201210, China and School of Information Science and Technology, ShanghaiTech University, Shanghai 201210, China |
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| Abstract: | A method of bathroom fall detection using 20 kHz ultrasound is proposed and tested in bathroom environment.The fall can cause weight loss and increase the velocity of the body movement,resulting in Doppler effect and the shift of the reflected ultrasonic frequency.Based on this frequency shift we can decide whether a person is fall and take relevant measures,so as to protect people''s health and safety under the premise of protecting privacy combined with the characteristics of the bathroom,and this method lays a good foundation for the development of intelligent medicine. |
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| Keywords: | fall detection bathroom ultrasound Doppler effect |
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