Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Electronic Distance Measuring Instruments01:30

Electronic Distance Measuring Instruments

38
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...
38
Dynamics Of Circular Motion: Applications01:17

Dynamics Of Circular Motion: Applications

7.8K
Suppose a car moves on flat ground and turns to the left. The centripetal force causing the car to turn in a circular path is due to friction between the tires and the road. For this, a minimum coefficient of friction is needed, or the car will move in a larger-radius curve and leave the roadway. Let's now consider banked curves, where the slope of the road helps in negotiating the curve. The greater the angle of the curve, the faster one can take the curve. It is common for race tracks for...
7.8K
Circular Shaft - Stresses in Linear Range01:13

Circular Shaft - Stresses in Linear Range

253
Consider a scenario where a circular shaft is subject to torque that remains within the boundaries of Hooke's Law, avoiding any permanent deformation. So, the formula for shearing strain is revisited. This formula is multiplied by the modulus of rigidity, and then Hooke's Law for the shearing stress and strain is applied. As a result, the equation for shearing stress in a shaft can be derived.
253
Distance Measurements by Taping01:18

Distance Measurements by Taping

46
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...
46

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Uncertainty-Calibrated Safety Gating for Vision-Language- Action Manipulation Under Domain Shift: Reliability Gains and Intervention-Efficiency Trade-Offs.

Sensors (Basel, Switzerland)·2026
Same author

Advancing workpiece dimension measurement: Integrating AI-based edge detection with machine vision and coordinate measuring systems.

PloS one·2026
Same author

Exploring the use of assistive technology in special education: Issues and trends for student visual impairments: A systematic literature review.

Assistive technology : the official journal of RESNA·2026
Same author

A Novel Technique for Quality Control of Microinjection Molding.

Micromachines·2026
Same author

A 5000 Fps, 4 Megapixel, Radiation-Tolerant, Wafer-Scale CMOS Image Sensor for the Direct Detection of Electrons and Photons.

Sensors (Basel, Switzerland)·2026
Same author

Evaluating instructional formats and performance metrics in manual assembly task.

Work (Reading, Mass.)·2025

Related Experiment Video

Updated: Jul 13, 2025

Data Communication Based on MQTT in a Polymer Extrusion Process
08:15

Data Communication Based on MQTT in a Polymer Extrusion Process

Published on: July 15, 2022

3.5K

Implementing circularity measurements in industry 4.0-based manufacturing metrology using MQTT protocol and Open CV:

Yazid Saif1, Yusri Yusof1, Anika Zafiah M Rus1

  • 1Faculty of Mechanical and Manufacturing Engineering, Universiti Tun Hussein Onn Malaysia, Batu Pahat, Malaysia.

Plos One
|October 13, 2023
PubMed
Summary

This study uses MQTT protocol and Open CV for efficient circularity measurement data transmission in Industry 4.0. Non-contact vision systems show promising accuracy compared to traditional methods.

More Related Videos

Operation of the Collaborative Composite Manufacturing CCM System
10:09

Operation of the Collaborative Composite Manufacturing CCM System

Published on: October 1, 2019

6.6K
Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization
10:28

Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization

Published on: July 5, 2016

10.3K

Related Experiment Videos

Last Updated: Jul 13, 2025

Data Communication Based on MQTT in a Polymer Extrusion Process
08:15

Data Communication Based on MQTT in a Polymer Extrusion Process

Published on: July 15, 2022

3.5K
Operation of the Collaborative Composite Manufacturing CCM System
10:09

Operation of the Collaborative Composite Manufacturing CCM System

Published on: October 1, 2019

6.6K
Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization
10:28

Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization

Published on: July 5, 2016

10.3K

Area of Science:

  • Manufacturing Metrology
  • Industry 4.0
  • Internet of Things (IoT)

Background:

  • Manufacturing metrology is essential for machine inspection in Industry 4.0.
  • Internet of Things (IoT) enables device communication via cloud and local servers.
  • Accurate inspection of circular characteristics is vital for various industrial applications.

Purpose of the Study:

  • To investigate the MQTT protocol's role in enhancing data transmission for circularity measurements.
  • To compare the performance of a non-contact vision system with a contact-based Coordinate Measuring Machine (CMM).

Main Methods:

  • Utilized MQTT protocol for data transmission between cloud servers and round-hole data sources.
  • Employed Open CV and image processing techniques (Hough Transform, Edge Detection, Contour Analysis) for circular feature analysis.
  • Conducted a comparative experiment between a non-contact 3SMVI system and a contact-based CMM system.

Main Results:

  • The study demonstrated the feasibility of using MQTT and Open CV for circularity measurement data transmission.
  • Experimental results showed a variation of 5 to 9.6 micrometers between the non-contact 3SMVI and contact-based CMM systems.
  • High-resolution cameras and optimal lighting conditions are suggested for improved precision.

Conclusions:

  • The MQTT protocol and Open CV offer an efficient method for transmitting circularity measurement data.
  • Non-contact vision inspection systems present a viable alternative to traditional CMM for roundness evaluation.
  • Further research with enhanced imaging technology can improve the precision of non-contact metrology.