相关实验视频
Updated: Jun 28, 2026

07:24
Home-Based Monitor for Gait and Activity Analysis
Published on: August 8, 2019
6.7K
生物传感器驱动的物联网可穿戴设备用于准确的身体运动跟踪和定位
Nouf Abdullah Almujally1, Danyal Khan2, Naif Al Mudawi3
1Department of Information Systems, College of Computer and Information Sciences, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia.
Sensors (Basel, Switzerland)
|May 25, 2024
概括
这项研究引入了智能手机传感器系统,用于识别人类的身体和位置活动,在识别步行,跑步和室内/室外模式方面达到高准确度. 这种新的方法增强了人类活动的识别,用于各种应用.
科学领域:
- 计算机科学 计算机科学
- 人与计算机的交互
- 信号处理 信号处理
背景情况:
- 使用智能手机传感器识别人类运动是一个不断增长的研究领域,在医疗保健,体育和安全领域都有应用.
- 现有的研究主要集中在物理运动上,对人类本地化模式的重视较小.
- 对物理和基于位置的人类活动的准确识别对于先进的应用至关重要.
研究的目的:
- 使用智能手机传感器开发和评估一种用于识别物理和基于位置的人类活动的系统.
- 准确识别行走,跑步,跳跃和室内/室外定位等活动.
- 在人类活动和本地化识别方面超越现有的最先进的方法.
主要方法:
- 使用Butterworth和Median过器预处理原始传感器数据,然后对细分进行哈明窗口.
- 从惯性和GPS传感器提取特征,通过差异值进行特征选择.
- 解决数据不平衡的方法是基于 permutation 的数据增强和 Yeo-Johnson 转换,其次是多层感知子分类和 K-fold 交叉验证.
主要成果:
- 该系统实现了高精度:96% (超感官) 和94% (SHL) 的身体活动.
- 该系统实现了高精度:94% (超感官) 和91% (SHL) 基于位置的活动.
- 拟议的系统在识别物理和基于位置的活动方面超过了以前的最先进的方法.
结论:
- 开发的系统有效地使用智能手机传感器识别了广泛的人类物理和基于位置的活动.
- 集成先进的信号处理,特征选择和机器学习技术显著提高了识别精度.
- 这项研究为各种现实应用中增强的人类活动识别系统提供了坚实的基础.
相关概念视频
Equipments Used to Measure Body Temperature
Body temperature can be assessed using various devices and measured in Celsius or Fahrenheit.
Glass-bulb Thermometer:
Glass-bulb thermometers are hollow glass tubes with a bulb tip containing liquid such as ethanol or mercury. Historically, glass bulb mercury thermometers were the standard device to measure body temperature. Today, mercury thermometers are prohibited in many countries due to the hazardous effects of mercury and the risk of exposure if the glass bulb breaks. In general,...
Glass-bulb Thermometer:
Glass-bulb thermometers are hollow glass tubes with a bulb tip containing liquid such as ethanol or mercury. Historically, glass bulb mercury thermometers were the standard device to measure body temperature. Today, mercury thermometers are prohibited in many countries due to the hazardous effects of mercury and the risk of exposure if the glass bulb breaks. In general,...
Equipments Used To Measure Blood Pressure
Direct Method
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
Electronic Distance Measuring Instruments
Electronic Distance Measuring Instruments (EDMs) are essential tools in modern surveying, offering precise distance measurements by emitting electromagnetic signals and calculating the time required for these signals to travel to a target and return. Two primary types of signals are used in EDMs — light waves and microwaves — each suited to specific environmental and distance requirements. Light-wave-based EDMs utilize either infrared or laser light, providing high accuracy over short distances...
Field Application of Global Positioning System
The Global Positioning System (GPS) has become an indispensable tool in fieldwork, offering unparalleled precision and efficiency for surveying, navigation, and infrastructure development. By harnessing signals from a constellation of satellites, GPS receivers determine the location of objects with remarkable speed and accuracy, often completing calculations within a second.Advantages of Modern GPS TechnologyContemporary GPS receivers are designed to meet the practical demands of field...
Microbial Biosensors
Microbial biosensors are analytical devices that utilize living microbes to detect specific substances through measurable signals. These devices consist of two main components: biosensing organisms and signal-transducing elements. Biosensing organisms, such as Escherichia coli or Saccharomyces cerevisiae, are typically housed in multiwell plates connected to transducers, enabling rapid, real-time detection of target analytes.Signal Generation MechanismWhen a target analyte—such as...

