Railway Crossing Warning Light with Orientation Sensor
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Solution Overview
Problem
Periodic physical inspections of railway crossing equipment, such as warning lights, are manual and subjective, leading to potential missed changes in configuration or orientation, which may affect visibility and safety until the next scheduled inspection.
Innovation Solution
A warning light assembly with integrated orientation sensors, such as tilt and compass sensors, that detects changes in position or orientation and generates alerts when deviations exceed predetermined thresholds, allowing for real-time monitoring and remote notification of maintenance needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If periodic physical inspection is used to monitor warning light equipment, then inspection coverage is provided, but detection accuracy and timeliness deteriorate due to manual subjectivity and delayed detection of position changes
Solution Approach 1:
The patent replaces manual physical inspection with automated electronic sensing systems. Orientation sensors (accelerometers, gyroscopes, magnetometers) and position sensors continuously monitor the warning light assembly's state and location, eliminating human subjectivity and providing objective, precise measurements of position and orientation changes.
Solution Approach 2:
The patent implements continuous monitoring through sensors that operate continuously or at frequent intervals between inspections. This allows real-time detection of position changes, weather-related movements, or tampering, immediately triggering alerts rather than waiting for the next scheduled periodic inspection.
2Reliability
If manual inspection methods are used, then equipment monitoring is performed, but reliability deteriorates due to missed changes and subjective assessment
Solution Approach 1:
The patent incorporates feedback mechanisms where sensors continuously detect the warning light assembly's position and orientation, compare readings against predetermined thresholds or baseline values, and automatically generate alerts when deviations are detected. This closed-loop system ensures reliable detection of configuration changes and immediately communicates status to maintenance personnel.
Solution Approach 2:
The warning light assembly performs self-monitoring through integrated sensors that automatically track its own position, orientation, and operational status. The system generates its own diagnostic information and alerts without requiring external inspection, enabling it to self-report configuration changes or potential failures.
3Loss of time
If frequent physical inspections are conducted to improve detection timeliness, then detection frequency increases, but operational efficiency and cost increase due to manual labor requirements
Solution Approach 1:
The patent replaces labor-intensive manual inspection with automated sensor systems that continuously monitor equipment status without requiring physical travel to each railway crossing. This eliminates the trade-off between inspection frequency and operational efficiency, as the automated system provides continuous monitoring at zero marginal labor cost.
Solution Approach 2:
The patent uses sensor data to create digital representations or models of the warning light assembly's physical state, including its position, orientation, and operational parameters. These digital copies allow remote monitoring and analysis without requiring physical presence at the equipment location, maintaining high detection frequency while preserving operational efficiency.
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
Enhances safety by promptly notifying maintenance personnel of any abnormalities in the positioning or operation of warning lights, reducing the risk of accidents due to unnoticed changes and improving the efficiency of maintenance processes.
Implementation Method 1
a tilt sensor and/or a compass may be used to determine both the tilt orientation of the warning light assembly
Implementation Method 2
a tilt sensor and/or a compass may be used to determine both the tilt orientation of the warning light assembly and a horizontal directional orientation relative to a magnetic north
Data Source
AI summary
A warning light assembly and railway crossing including such an assembly are disclosed. An example warning light assembly includes a housing, an illumination device at least partially positioned within the housing, and a movement detection circuit positioned within the housing in a fixed position relative to the illumination device. The movement detection circuit can include a plurality of sensors of different types, and is configured to detect a change in position or orientation of the warning light assembly relative to an initial position, and, in response to detecting the change in position or orientation, generate an alert.