Vehicle Rearward Movement Warning and Visual Feedback System
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Solution Overview
Problem
Current vehicle systems, such as rail vehicles, lack the capability to provide real-time visual feedback of areas behind the vehicle during reverse movement, posing safety risks and requiring additional personnel, especially in adverse weather conditions.
Innovation Solution
A system that includes a controller and sensors to determine vehicle movement direction, activating a warning device and optical sensors to provide visual feedback only when the vehicle is reversing, allowing operators to safely navigate and communicate changes in movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a spotter exits the rail vehicle to communicate about rearward movement, then the operator can see behind the vehicle, but the spotter's safety is compromised especially in adverse weather
Solution Approach 1:
The patent uses cameras to capture visual information from the rear of the vehicle and transmits this visual copy to display devices in the operator cab. This allows the operator to see behind the vehicle without a spotter physically present, eliminating the safety risk while maintaining visual feedback capability
Solution Approach 2:
The patent replaces the mechanical system of a human spotter physically observing and communicating verbally with an automated optical system using cameras and electronic displays. This substitution eliminates the need for a spotter to be in hazardous positions while providing continuous visual feedback
2Loss of information
If a spotter walks to the rear of the rail vehicle, then visual feedback can be provided, but significant time is lost
Solution Approach 1:
The camera systems are pre-installed on the vehicle and continuously positioned to monitor rear areas. The visual feedback system is already in place and operational before reversing begins, eliminating the time delay associated with a spotter needing to physically relocate to obtain visual information
3Reliability
If additional personnel are used to operate the rail vehicle, then safety can be improved, but operational complexity increases
Solution Approach 1:
The vehicle's own systems (cameras, displays, controllers) are used to provide the safety function that previously required additional personnel. The vehicle serves itself by incorporating rearward observation capabilities directly into its operational systems, eliminating the need for separate spotter personnel
4Reliability
If the warning device is always active, then safety notifications are always available, but false alarms occur during forward movement
Solution Approach 1:
The warning device's operational state is made dynamic rather than static. The controller monitors vehicle movement direction and automatically activates or deactivates the warning device based on whether the vehicle is moving forward or in reverse, ensuring the device is only active when potentially hazardous reversing operations are occurring
Data Source
AI summary
A system and method determine that a vehicle system is beginning rearward movement based on one or more characteristics of the vehicle system that are monitored by a movement sensor. A warning device is controlled to sound a notification to one or more locations off-board the vehicle system. The warning device is prevented from controlling the warning device to generate the notification while the vehicle system is moving in a direction other than the rearward movement. The warning device is permitted to generate the notification responsive to determining that the vehicle system is beginning the rearward movement.