Warehouse Blind Spot Detection Using Sensor-Activated LED Warning Lights
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Solution Overview
Problem
Commercial warehouses face challenges with 'blind' intersections and corners due to densely packed shelving, making it difficult for pedestrians and fork lift drivers to detect cross-flow traffic, exacerbated by high noise levels that render audible sirens ineffective.
Innovation Solution
A traffic signal system using stationary and mobile LED safety lights with sensors that detect objects within a perimeter, activating warning lights to indicate the presence of pedestrians or vehicles approaching blind intersections, thereby preventing collisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If dense shelving blocks are arranged to maximize storage capacity, then storage efficiency is improved, but visibility at intersections deteriorates creating blind spots
Solution Approach 1:
The patent introduces sensors as intermediary devices that detect objects in blind spots and transmit this information to warning lights, mediating between the dense shelving arrangement and the need for intersection visibility. The sensors act as intermediaries that bridge the gap created by the shelving blocks, allowing detection without changing the storage layout.
2Ease of operation
If audible sirens are used to warn approaching traffic at blind intersections, then warning capability is improved, but effectiveness deteriorates due to high noise levels and reverberation
Solution Approach 1:
The patent replaces the acoustic warning system (sirens) with an optical warning system (LED lights). This substitution eliminates the harmful effect of noise interference and reverberation by using light instead of sound to convey warning information, making the warning effective in high-noise warehouse environments.
Solution Approach 2:
The patent uses different colored LED lights (yellow and red) to convey different warning states. Yellow lights indicate a single object detected, while red lights indicate multiple objects detected, providing intuitive visual information that overcomes the limitations of audible warnings in noisy environments.
3Reliability
If stationary alarm lights with sensors are installed at blind intersections, then collision prevention is improved, but system complexity increases
Solution Approach 1:
The patent divides the warning system into separate functional modules: sensors for detection, processors for analysis, and LED lights for warning. This segmentation allows each component to perform its specific function independently, making the overall system more manageable and easier to implement while maintaining high reliability for collision prevention.
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 system effectively warns pedestrians and vehicle operators of approaching hazards, reducing the risk of collisions by providing clear visual warnings even in noisy environments, enhancing safety in congested warehouse spaces.
Implementation Method 1
A traffic signal system using stationary and mobile LED safety lights with sensors that detect objects within a perimeter, activating warning lights to indicate the presence of pedestrians or vehicles approaching blind intersections
Implementation Method 2
sensors that detect objects within a perimeter, activating warning lights to indicate the presence of pedestrians or vehicles approaching blind intersections
Data Source
AI summary
A traffic signal system for congested trafficways has a plurality of stationary alarm light/sensor-reader combinations and mobile alarm light/sensor-reader combinations monitoring each other and monitory tags placed on individuals, machines, and hazards to provide real time alarms to not only pedestrians but also machine operators, who are potentially approaching harm's way, or have the better ability to avert potential harm. Different forms of alarms are provided to indicate different kinds of alarm conditions and to reduce complacency to alarms, and thus improve effectiveness.