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相关概念视频

Design Example: Flow Through a Fire Extinguisher01:12

Design Example: Flow Through a Fire Extinguisher

109
A fire extinguisher that uses pressurized water relies on fluid dynamics principles to generate a high-velocity stream capable of suppressing flames. The water is stored at a much higher pressure inside the extinguisher than the surrounding atmosphere. This pressure difference forces the water to flow rapidly when the extinguisher is activated, and the behavior of the water as it exits the nozzle can be understood using fundamental equations of fluid dynamics.
The key to understanding how the...
109
Flame Photometry: Overview01:02

Flame Photometry: Overview

411
Flame photometry, also known as flame emission spectrometry, is a technique used for the qualitative and quantitative analysis of elements present in a sample using a flame as the source of excitation energy. The concept of flame photometry was realized in the early 1860s by Kirchhoff and Bunsen, who discovered that specific elements emit characteristic radiation when excited in flames. The first instrument developed for this purpose was used to measure sodium (Na) in plant ash using a Bunsen...
411
Atomic Emission Spectroscopy: Interference01:30

Atomic Emission Spectroscopy: Interference

136
In atomic emission spectroscopy (AES), high-temperature atomizers excite a broad range of elements and molecules that generate complex emissions from sources such as oxides, hydroxides, and flame combustion products in the flame or plasma. Several strategies can be employed to minimize spectral interferences caused by overlapping emission lines or bands. These include increasing instrument resolution, choosing alternative emission lines, optimally placing the detector in low-background regions,...
136
Field Application of Global Positioning System01:28

Field Application of Global Positioning System

22
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...
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相关实验视频

Updated: May 21, 2025

Experimental Methodology for Estimation of Local Heat Fluxes and Burning Rates in Steady Laminar Boundary Layer Diffusion Flames
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研究精确的火源定位和秒级自主灭火技术.

Xu Ren1, Keyu Qu2, Junlong Guo1

  • 1The State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin, 150001, China.

Scientific reports
|May 17, 2025
PubMed
概括

这项研究介绍了一种先进的自主消防机器人系统. 它使用深度学习来改进火焰识别和厘米级火源定位,在0.5秒内实现快速灭火.

关键词:
自动化灭火系统高精度的火灾定位高精度的火灾定位.里达尔核聚变是什么?

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Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing
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科学领域:

  • 机器人技术和智能系统
  • 应急响应中的人工智能
  • 消防安全工程 消防安全工程

背景情况:

  • 消防机器人对于救援行动至关重要,但当前的自主系统在火焰识别适应性,火源定位精度和消防效率方面面临挑战.
  • 现有的火焰识别方法对各种火焰条件的适应性不佳.
  • 目前的火源定位技术只提供粗略的定位,自主消防依赖于缓慢反调整方法.

研究的目的:

  • 开发一套先进的自主消防机器人系统,增强火焰识别,火源定位和快速灭火的能力.
  • 通过使用视觉,热成像和形态数据的深度学习来提高火焰识别的适应性.
  • 为了在火源定位方面达到厘米级的精度,并实现快速的自主消防.

主要方法:

  • 利用集成视觉,热成像形态和热数据的深度学习模型进行火焰识别.
  • 实施了厘米级高精度定位系统,用于火源识别.
  • 开发了一种水炮火源投射方法,用于快速自主消防指令生成.

主要成果:

  • 拟议的火源识别算法成功地以每秒大约15的速度识别到15米远的火源.
  • 实现了对火源的厘米级高精度定位.
  • 在0.5秒内展示了快速的自主消防.

结论:

  • 开发的深度学习方法显著提高了消防机器人的火焰识别适应性.
  • 该系统实现了高精度的火源定位,并实现了快速的自主消防,解决了当前技术的局限性.
  • 这一进步具有显著的潜力,可以提高消防救援行动的有效性和安全性.