Light Curtain Optical Detection for High-Speed Object Tracking
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current optical detection methods are inefficient and lack accuracy in detecting physical characteristics, moving speed, and position of objects, particularly in high-speed transportation scenarios, as they rely on manual methods that are prone to errors and do not provide real-time data analysis.
Innovation Solution
An optical detection device comprising a linear light source that creates a light curtain on a transportation path, coupled with a sensor set and control circuit, which generates sensing signals based on light beams not interrupted by the object, allowing for continuous and accurate determination of physical characteristics, moving speed, and position, and optionally adjusts the transportation speed for enhanced efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual detection methods are used, then device complexity is reduced, but detection efficiency and accuracy deteriorate
Solution Approach 1:
The patent replaces manual mechanical detection with an optical detection system using light sources, sensors, and electronic processing. The linear light source creates a light curtain that automatically detects objects passing through, substituting human-operated mechanical methods with an automated optical-mechanical system that achieves higher detection efficiency and accuracy.
2Speed
If conventional optical detection is used, then detection speed is improved, but measurement precision of physical characteristics deteriorates
Solution Approach 1:
The patent segments the detection process into multiple independent sensor elements arranged in arrays. Each sensor element detects light intensity at its specific position, and the control circuit processes signals from multiple segments simultaneously. This segmentation enables both high-speed detection (parallel processing) and precise measurement of physical characteristics like width, height, and shape by analyzing the spatial distribution of sensor signals.
Solution Approach 2:
The patent transitions from one-dimensional linear light sources to two-dimensional plane light sources, creating a light curtain that provides spatial information in multiple dimensions. The sensor arrays are arranged in corresponding two-dimensional patterns, enabling simultaneous measurement of objects' width, height, position, and shape. This dimensional expansion allows the system to maintain high detection speed while achieving comprehensive measurement precision across multiple spatial parameters.
3Measurement precision
If light curtain detection is implemented, then detection accuracy is improved, but energy consumption increases
Solution Approach 1:
The patent implements periodic scanning of the light curtain across the detection area rather than maintaining continuous illumination of the entire area. The linear or plane light source moves periodically to create the light curtain at different positions, and the sensor arrays capture data during each scan cycle. This periodic action reduces overall energy consumption compared to continuous full-area illumination while maintaining detection accuracy through repeated measurements and signal processing.
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
The solution significantly improves detection efficiency by providing accurate, real-time data analysis of object characteristics and speed, replacing conventional manual detection methods and enhancing the precision of optical detection for various substances.
Implementation Method 1
Optical detection is a method that uses the interaction of light and a substance to detect the substance
Implementation Method 2
the sensor set senses the light beams not interrupted by the object to be detected to generate a sensing signal
Data Source
AI summary
An optical detection device and a detection method thereof are provided. A linear light source provides a light curtain formed by multiple light beams, the light curtain is located on a transportation path of transporting an object to be detected. A sensor set senses the part of light beams not interrupted by the object to be detected, so as to generate a sensing signal with various strengths. A control circuit determines a physical characteristic, moving speed and position of the object to be detected according to the strength of the sensing signal.