Stroboscopic Pulley Video Analysis for Conveyor Belt Slippage
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional methods for measuring rotational speed of conveyor belt pulleys require disassembly, posing safety risks and resulting in costly downtime due to the need for physical measurements.
Innovation Solution
The implementation of stroboscopic techniques to measure rotational speed without disassembling the conveyor belt system, utilizing a video device, strobe, and processors to synchronize the video and determine rotational speed, slippage, and remaining belt life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional physical measurement methods are used to measure rotational speed, then measurement precision can be achieved, but system downtime increases and safety risks occur due to disassembly requirements
Solution Approach 1:
The patent replaces mechanical disassembly-based measurement methods with an optical measurement system. A camera captures video of the pulley, and image processing algorithms extract rotational speed data without any physical contact or disassembly, thereby eliminating system downtime while maintaining measurement precision.
Solution Approach 2:
The patent introduces video imagery as an intermediary between the measurement system and the rotating pulley. Instead of direct mechanical measurement, the system uses optical signals (video frames) to capture pulley position and calculate rotational speed, avoiding the need to stop or disassemble the system.
2Measurement precision
If conventional physical measurement methods are used to measure rotational speed, then accurate speed data can be obtained, but safety risks increase due to system disassembly
Solution Approach 1:
The patent substitutes mechanical contact-based measurement with non-contact optical measurement. The camera and image processing system capture and analyze pulley motion visually, eliminating the need for operators to disassemble moving parts and exposing themselves to safety hazards while maintaining measurement accuracy.
3Loss of time
If stroboscopic video analysis is used to measure rotational speed, then system downtime is reduced and safety is improved, but measurement complexity increases
Solution Approach 1:
The patent creates a visual copy (video recording) of the pulley's motion and performs measurements on this copy rather than the actual moving part. This allows complex image processing and stroboscopic analysis to be performed offline or in real-time without affecting the running system, reducing downtime while managing complexity through software-based solutions.
Solution Approach 2:
The patent employs stroboscopic illumination or frame sampling at periodic intervals synchronized with or related to the pulley rotation. This periodic sampling converts continuous rotational motion into discrete, analyzable positions, simplifying the extraction of rotational speed data while enabling non-contact measurement during operation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables safe and efficient measurement of pulley rotational speeds, reducing downtime and damage detection by analyzing belt characteristics such as slippage and temperature through synchronized video analysis.
Implementation Method 1
A stroboscopic effect is generated on the obtained video to determine a measured rotational speed for the pulley
Data Source
AI summary
A rotational speed measurement system includes a video device configured to obtain a video of a pulley of a conveyor belt system. The rotational speed measurement system also includes a strobe configured to generate a stroboscopic effect on the obtained video. The rotational speed measurement system also includes a memory device. The rotational speed measurement system also includes a network interface. The rotational speed measurement system also includes one or more processors configured to: generate a stroboscopic window using the strobe and the obtained video, synchronize the strobe with the obtained video using the stroboscopic window, determine a measured rotational speed for the pulley based on the synchronized strobe, and determine belt slippage based on the measured rotational speed.