Cascading 3D Sensor Synchronization for Railway Track Inspection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current railway track inspection systems are limited by the measurement speed performance of sensors, which restricts the survey speed and resolution of track inspections, necessitating a means to enhance the longitudinal sample interval and data collection rate.
Innovation Solution
A system utilizing multiple 3D sensors triggered in a cascading sequence to collect and combine data, increasing the resolution and speed of railway track inspections by alternating sensor activation and data storage, allowing for higher resolution data sets at faster survey speeds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single sensor is used for track inspection, then the device complexity is low, but the measurement speed and data collection rate are limited
Solution Approach 1:
The inspection system divides the measurement task into multiple segments by using multiple sensors (first sensor and second sensor) that operate in alternating sequences. Each sensor captures a portion of the data, and their combined output achieves the desired high data collection rate without requiring a single ultra-high-speed sensor, thus managing complexity through functional division.
Solution Approach 2:
The system employs periodic action by alternating the operation of multiple sensors in a repeating sequence. The first sensor operates while the second is on standby, then they switch roles. This periodic activation pattern increases the effective data collection rate beyond what a single continuously operating sensor could achieve, while keeping each individual sensor's operational complexity manageable.
2Speed
If sensors operate at high speed, then the survey speed increases, but the longitudinal sample interval resolution decreases
Solution Approach 1:
The system merges the output data from multiple sensors to achieve high resolution. By combining the measurements from the first sensor and second sensor, which operate at different phases in the alternating sequence, the system produces a composite data set with fine longitudinal sample intervals. This merging allows the system to maintain high survey speed while achieving resolution that would be impossible with a single sensor operating at the same speed.
3Productivity
If multiple sensors are used to increase data collection rate, then the productivity improves, but the device complexity increases
Solution Approach 1:
The system maintains continuous useful action by ensuring that while one sensor is on standby, the other is actively collecting data. This alternating operation pattern ensures that data collection continues without interruption, achieving high productivity. The standby sensor can be prepared or transferred while the other operates, maintaining the continuity of the inspection process without requiring complex coordination between multiple simultaneously active sensors.
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 achieves higher resolution data collection with improved longitudinal sample intervals, enabling faster and more accurate railway track assessments, exceeding the capabilities of single-sensor systems by increasing the data collection rate and reducing the longitudinal spacing between samples.
Implementation Method 1
a first sensor for sensing reflected light that was emitted from the light emitting apparatus and acquiring three dimensional image data of the railway track
Data Source
AI summary
A system and method for inspecting a railway track bed using a plurality of sensors that are synchronized for rapid interrogation of a railway track bed while the sensors are in motion at a high rate of speed.