Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Estimation of the Physical Quantities01:05

Estimation of the Physical Quantities

7.2K
On many occasions, physicists, other scientists, and engineers need to make estimates of a particular quantity. These are sometimes referred to as guesstimates, order-of-magnitude approximations, back-of-the-envelope calculations, or Fermi calculations. The physicist Enrico Fermi was famous for his ability to estimate various kinds of data with surprising precision. Estimating does not mean guessing a number or a formula at random. Instead, estimation means using prior experience and sound...
7.2K
Distance Problem01:29

Distance Problem

4
When an object's velocity changes over time, the total distance traveled can be determined by summing small displacement intervals over short increments. This approach approximates the true distance through numerical summation and the use of integral calculus. An estimate of the total displacement can be obtained by measuring velocity at regular intervals and multiplying each value by the corresponding time step.If a runner accelerates over the first three seconds of a race, speed measurements...
4
Average and Instantaneous Velocity Vectors01:12

Average and Instantaneous Velocity Vectors

8.5K
To calculate other physical quantities in kinematics, the time variable must be introduced. The time variable not only allows us to state where an object is (its position) during its motion, but also how fast it’s moving. The speed at which an object is moving is given by the rate at which the position changes with time. For each position, a particular time is assigned. If the details of the motion at each instant are not important, the rate is usually expressed as the average velocity v.
8.5K
Distance Measurements by Taping01:18

Distance Measurements by Taping

404
Tapes are essential in surveying for accurate, durable, and short-distance measurements. Made from lightweight, nylon-coated steel, they offer flexibility and strength for rugged outdoor use. The nylon coating protects against rust and wear, extending the tape's life. Standard lengths, around 30 meters, are marked in meters and millimeters for precision.Surveyors select tapes based on site conditions and accuracy needs. Lightweight, nylon-coated tapes are commonly used for ease of handling and...
404
Measuring Acceleration Due to Gravity01:12

Measuring Acceleration Due to Gravity

1.2K
Consider a coffee mug hanging on a hook in a pantry. If the mug gets knocked, it oscillates back and forth like a pendulum until the oscillations die out.
A simple pendulum can be described as a point mass and a string. Meanwhile, a physical pendulum is any object whose oscillations are similar to a simple pendulum, but cannot be modeled as a point mass on a string because its mass is distributed over a larger area. The behavior of a physical pendulum can be modeled using the principles of...
1.2K
Distribution of Molecular Speeds01:27

Distribution of Molecular Speeds

5.3K
The motion of molecules in a gas is random in magnitude and direction for individual molecules, but a gas of many molecules has a predictable distribution of molecular speeds. This predictable distribution of molecular speeds is known as the Maxwell-Boltzmann distribution. The distribution of molecular speeds in liquids is comparable to that of gases but not identical and can help to understand the phenomenon of the boiling and vapor pressure of a liquid. Consider that a molecule requires a...
5.3K

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Impact of Electrical Stimulation on Mental Stress, Depression, and Anxiety: A Systematic Review.

Sensors (Basel, Switzerland)·2025
Same author

Impact of transcranial alternating current stimulation on psychological stress: A functional near-infrared spectroscopy study.

PloS one·2025
Same author

Exploring Effects of Mental Stress with Data Augmentation and Classification Using fNIRS.

Sensors (Basel, Switzerland)·2025
Same author

Assessment of Brain Function After 240 Days Confinement Using Functional Near Infrared Spectroscopy.

IEEE open journal of engineering in medicine and biology·2024
Same author

One-Channel Wearable Mental Stress State Monitoring System.

Sensors (Basel, Switzerland)·2024
Same author

Improved Cognitive Vigilance Assessment after Artifact Reduction with Wavelet Independent Component Analysis.

Sensors (Basel, Switzerland)·2022
Same journal

Enhancing Unsupervised Multi-Source Domain Adaptation for Person Re-Identification via Mixture of Experts and Graph-Based Relation.

Sensors (Basel, Switzerland)·2026
Same journal

Development of an Instrumented Glove for Palmar Pressure Assessment in Kayakers.

Sensors (Basel, Switzerland)·2026
Same journal

Development and Experimental Validation of an Autonomous IoT-Based Monitoring System for Real-Time Water Quality Assessment in the Amazon River.

Sensors (Basel, Switzerland)·2026
Same journal

Semi-Supervised Adversarial Learning Framework for Controller Area Network Bus Intrusion Detection.

Sensors (Basel, Switzerland)·2026
Same journal

Smart Optimization Method for Safety Signs in Innovative Manufacturing Environments Integrating Industrial Field IoT Sensors and Knowledge Graphs.

Sensors (Basel, Switzerland)·2026
Same journal

Three-Dimensional Modeling and Performance Analysis of Dynamic mmWave V2I Networks Based on Stochastic Geometry.

Sensors (Basel, Switzerland)·2026
查看所有相关文章

相关实验视频

Updated: Jan 13, 2026

Simulation of Human-induced Vibrations Based on the Characterized In-field Pedestrian Behavior
10:52

Simulation of Human-induced Vibrations Based on the Characterized In-field Pedestrian Behavior

Published on: April 13, 2016

9.1K

"速度":人类速度估计数据集

Zainab R Bachir1, Usman Tariq1

  • 1Electrical Engineering Department, College of Engineering, American University of Sharjah, Sharjah P.O. Box 26666, United Arab Emirates.

Sensors (Basel, Switzerland)
|October 29, 2025
PubMed
概括
此摘要是机器生成的。

研究人员开发了一个新的数据集和一个深度学习模型,SpeedNet,用于使用可穿戴传感器准确估计人类的速度. 速度网实现实时性能,并通过对特定主题的调整显著减少错误.

关键词:
加速度计的加速度计.卷积神经网络是一种卷积神经网络.陀螺仪陀螺仪的使用方法惯性测量单位是一种惯性测量单位.

更多相关视频

An Inertial Measurement Unit Based Method to Estimate Hip and Knee Joint Kinematics in Team Sport Athletes on the Field
06:52

An Inertial Measurement Unit Based Method to Estimate Hip and Knee Joint Kinematics in Team Sport Athletes on the Field

Published on: May 26, 2020

8.5K
Influence of Step-Width Manipulation on Running Biomechanics
06:53

Influence of Step-Width Manipulation on Running Biomechanics

Published on: February 28, 2025

958

相关实验视频

Last Updated: Jan 13, 2026

Simulation of Human-induced Vibrations Based on the Characterized In-field Pedestrian Behavior
10:52

Simulation of Human-induced Vibrations Based on the Characterized In-field Pedestrian Behavior

Published on: April 13, 2016

9.1K
An Inertial Measurement Unit Based Method to Estimate Hip and Knee Joint Kinematics in Team Sport Athletes on the Field
06:52

An Inertial Measurement Unit Based Method to Estimate Hip and Knee Joint Kinematics in Team Sport Athletes on the Field

Published on: May 26, 2020

8.5K
Influence of Step-Width Manipulation on Running Biomechanics
06:53

Influence of Step-Width Manipulation on Running Biomechanics

Published on: February 28, 2025

958

科学领域:

  • 生物力学 生物力学
  • 可穿戴技术可穿戴技术
  • 机器学习 机器学习

背景情况:

  • 惯性测量单位 (IMU) 越来越多地用于人类运动分析.
  • 准确的速度估计对于各种应用至关重要,包括体育科学和康复.
  • 使用IMU的现有速度估计技术在准确性和通用性方面存在局限性.

研究的目的:

  • 引入一个新的,中等规模的数据集,称为"速度"数据集,用于基于IMU的速度估计.
  • 在这个数据集上对现有的速度估计方法进行基准比较.
  • 开发和评估一个深度学习模型,SpeedNet,以改进主题独立和主题特定的速度估计.

主要方法:

  • 收集了33名使用IMU的健康受试者的步行/跑步速度数据 (4.0-9.5公里/小时).
  • 创建了一个数据集,包含加速度计和陀螺仪数据,组织成主体独立的数据集.
  • 实施和基准支持向量回归,高斯过程回归和浅层神经网络.
  • 设计并测试了一个深度卷积神经网络 (CNN),命名为SpeedNet.

主要成果:

  • 速度网实现了一个独立于主体的根平均平方误差 (RMSE) 0.4819公里/小时.
  • 根据SpeedNet的特定对象的调整,将RMSE降低到0.1747公里/小时.
  • 与其他基准方法相比,SpeedNet表现出卓越的准确性和实时性能.

结论:

  • "速度"数据集为基于IMU的速度估计研究提供了宝贵的资源.
  • 速度网提供了一个高度准确和计算高效的解决方案,用于估计人类的步行/跑步速度.
  • 拟议的具体学科调整显著提高了速度估计的精度.