Vehicle Marshalling Status Signaling with Color and Blink Codes
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Solution Overview
Problem
In environments where multiple vehicles need to be moved autonomously, such as automobile factories and rental car lots, there is a need to effectively communicate the marshalling status of vehicles to observers outside the vehicle, including whether the vehicle is under control, about to move, or experiencing errors, as existing systems lack clear and reliable methods for visual and auditory communication.
Innovation Solution
The system employs a processor and memory to receive marshalling commands, change vehicle states, and map these states to optical and sound outputs, using exterior and interior lighting to convey status information through various colors, blink patterns, and sound outputs, allowing observers to determine the vehicle's status quickly and accurately.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If vehicles are autonomously controlled in marshalling environments, then productivity and coordination of vehicle movement improve, but safety and operational awareness deteriorate due to lack of visible status indication to observers
Solution Approach 1:
The patent applies color changes in status lights to indicate different marshalling states of the vehicle. Different colors (e.g., green, yellow, red) represent different operational states such as autonomous control, human control, errors, or blockages. This allows observers to quickly understand the vehicle status without complex displays, resolving the contradiction by providing clear visual feedback that maintains safety awareness while enabling autonomous operation.
Solution Approach 2:
The patent uses periodic blinking patterns of status lights to convey different marshalling states. Instead of continuous illumination, the system employs specific blink rates and patterns to indicate various operational states. This periodic action provides dynamic visual information that captures observer attention and communicates status changes effectively, maintaining safety awareness while supporting autonomous vehicle control.
2Productivity
If multiple vehicles are marshalled simultaneously, then productivity increases, but the complexity of tracking and monitoring each vehicle's status increases
Solution Approach 1:
The patent segments the status information of each vehicle into distinct, standardized visual signals using status lights with specific colors and blink patterns. Each vehicle independently displays its own marshalling state through these segmented visual indicators, allowing observers to track multiple vehicles simultaneously without confusion. This segmentation approach enables high-throughput marshalling while keeping monitoring simple and intuitive.
Solution Approach 2:
The patent changes physical parameters of the status lights (color wavelength, blink frequency, illumination intensity) to encode different marshalling states. By varying these parameters, the system conveys rich status information through simple visual changes, enabling efficient monitoring of multiple vehicles without increasing system complexity. Observers can quickly distinguish between different vehicle states by observing these parameter changes.
3Reliability
If detailed status information is provided to observers, then safety and awareness improve, but the complexity and energy consumption of the communication system increase
Solution Approach 1:
The patent makes the status lights serve multiple functions: indicating autonomous control mode, human control mode, error states, and blockage conditions. Instead of using separate indicators for each status type, the system uses a universal status light that conveys all necessary information through variations in color and blink pattern. This multi-functionality approach provides comprehensive operational awareness while minimizing system complexity and energy consumption.
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
This solution enables observers to rapidly identify which vehicles are under autonomous control, in motion, or require assistance, enhancing safety and efficiency in vehicle marshalling environments by providing clear visual and auditory indicators of the vehicle's status.
Implementation Method 1
illuminate the first status light at the vehicle according to the optical output
Data Source
AI summary
A system for communicating a marshalling status of a vehicle to an observer located outside a vehicle. A memory storing instructions executable by a processor includes instructions to receive a marshalling command by the vehicle from a marshalling controller. The vehicle's marshalling state is changed in response to the marshalling command. The marshalling state is mapped to an optical output encoded for and understandable to the human observer. At least a first status light is illuminated according to the optical output.