In-Cab Signal Detector for Loading Dock Safety
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Solution Overview
Problem
Conventional loading dock systems require drivers to continuously monitor visual signals to determine when it is safe to leave, which is inefficient and limits rest time, especially in facilities without audible alarms or in-cab signaling systems, and does not provide driver choice in observing the signals.
Innovation Solution
A system comprising a light detector, data processor, and driver interface that detects the status of loading dock signal lights and provides an audible indication to the driver, allowing them to determine when it is safe to leave without visual observation, deployable on various signal lights.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If drivers continuously monitor visual signal lights at the loading dock, then safety is improved by ensuring drivers know when it is safe to leave, but driver rest time is reduced and driver vigilance is required throughout the waiting period
Solution Approach 1:
The patent introduces an intermediary device (signal detector with audio output) that mediates between the visual signal light and the driver. The detector captures the visual signal and converts it to an audible format, allowing drivers to receive safety information without continuously watching the light, thus preserving rest time while maintaining safety awareness
Solution Approach 2:
The patent replaces the mechanical/visual observation system with an electronic detection and audio output system. Instead of requiring drivers to visually monitor signals, the system uses electronic detectors to sense the signal state and converts it to audible warnings, substituting human visual attention with automated electronic sensing
2Ease of manufacture
If facilities provide only visual signal lights without audible alarms or in-cab signaling, then system complexity is reduced and ease of manufacture is improved, but driver convenience deteriorates and driver choice in observing signals is eliminated
Solution Approach 1:
The portable signal detector acts as an intermediary that bridges simple visual signal lights and driver information needs. It captures signals from basic visual lights and converts them to audible format, enhancing driver convenience without requiring complex facility installations
Solution Approach 2:
The system replaces the limitation of visual-only signals with electronic detection and audio output. The portable detector with photoelectric sensors and audio warning system transforms basic visual signals into a more convenient audible format for drivers
3Loss of information
If drivers must maintain visual contact with dock signal lights to determine when to leave, then information accuracy is improved by ensuring drivers receive real-time signal changes, but driver vigilance requirements increase and productivity decreases due to inefficient time utilization
Solution Approach 1:
The system implements feedback by continuously monitoring the signal light state through the detector and providing immediate audible warnings when the safe-to-leave signal is detected. This ensures drivers receive accurate, real-time information about signal changes without needing to continuously observe the lights
Solution Approach 2:
The signal detector serves as an intermediary that captures signal information and delivers it to drivers through audio warnings, ensuring accurate information transmission without requiring driver vigilance or continuous visual contact with the signals
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 drivers to determine safely when to leave the loading dock without continuous visual vigilance, improving rest time and flexibility, and is compatible with different loading dock configurations.
Implementation Method 1
a light detector configured to generate a signal that corresponds to the state of the light
Data Source
AI summary
The present invention provides a system for indicating the status of a loading dock to a driver. The system includes a signal detector configured to provide an indication to an operator when a signal generator is in a predetermined state. In one embodiment, the signal generator is configured to emit light when it is safe to leave the loading dock and the signal detector is configured to detect light. An operator interface is electrically connected to the signal detector. The operator interface is configured to convey to the operator the status determined by the signal detector. The signal detector is associated with a vehicle and the signal detector is adaptable to a plurality of signal generators.