Ceiling Traveling Vehicle Obstacle Detection Without Vehicle Interference
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Solution Overview
Problem
Existing ceiling traveling vehicle systems falsely detect another vehicle as an obstacle due to reflection of detection light, leading to unnecessary stopping and reduced operation efficiency.
Innovation Solution
A ceiling traveling vehicle system with detectors placed on the rear side of the main body, applying detection light forward and downward, and using a grid-like track system with rotatable transfer apparatus and switchable detection ranges to prevent false detection of other vehicles as obstacles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the obstacle sensor applies detection light forward in the traveling direction, then the obstacle detection capability is improved, but another ceiling traveling vehicle is falsely detected as an obstacle due to light reflection
Solution Approach 1:
The detector is positioned on the rear side of the main body and applies detection light forward and downward, utilizing the vertical dimension to differentiate between obstacles and other vehicles. By directing light downward at an angle, the system creates a detection pattern that intersects with obstacles hanging from the ceiling but passes below other traveling vehicles, thereby eliminating false detections while maintaining obstacle detection capability.
2Reliability
If the detection light is applied inclined downward, then false detection of other vehicles is prevented, but the detection range for obstacles may be reduced
Solution Approach 1:
The system dynamically adjusts the detection strategy by positioning the detector on the rear side and utilizing the downward inclination angle. This dynamic configuration allows the detection light to sweep through a vertical cone that covers the obstacle detection zone while naturally excluding the horizontal zone where other vehicles travel, achieving both false detection prevention and adequate detection range.
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
Prevents false detection of other vehicles as obstacles, improving operation efficiency by ensuring accurate detection of hindrances while preventing interference between vehicles.
Implementation Method 1
applying detection light forward in the traveling direction and downward, and detecting an obstacle by receiving reflected light of the detection light
Data Source
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AI summary
Falsely detecting another ceiling traveling vehicle as an obstacle is prevented while surely detecting an obstacle as a hindrance to traveling. A ceiling traveling vehicle 100 includes a traveler 20 traveling along a grid-like track R, a main body 10 coupled to the traveler 20 and placed below the track, and a detector 40 placed on a rear side of a center of the main body 10 in a traveling direction of the traveler 20 and below the main body 10, applying detection light L forward in the traveling direction and downward, and receiving reflected light of the detection light L to detect an obstacle.