Automated Calibration for Railroad Dragging Equipment Detectors
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Solution Overview
Problem
Existing dragging equipment detection systems for the railroad industry require frequent maintenance and adjustment due to the need for calibration of the distance between magnetic components to generate a desired output signal, which is time-consuming and less than optimal.
Innovation Solution
A method and apparatus for calibrating a moving object impact detector that involves generating an activation signal from the movement of an impact element and setting it as a reference signal using a controller, allowing for automatic calibration based on various parameters such as triggering angle, train speed, and environmental conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If a contact-less switching mechanism with magnetic amplifier and magnet is used, then maintenance and adjustment requirements are reduced, but calibration time and complexity increase due to the need to periodically adjust the distance between magnetic components
Solution Approach 1:
The system performs automatic calibration using a processor that receives signals from the impact element and automatically adjusts the reference signal threshold. This self-calibrating mechanism eliminates the need for manual adjustment of magnetic component distances, reducing both maintenance requirements and calibration time.
Solution Approach 2:
The patent replaces manual mechanical adjustment of magnetic component distances with an automated electronic calibration system. The processor-based system uses electrical signals and software algorithms to perform calibration, substituting the mechanical adjustment process with an automated electronic control mechanism.
2Measurement precision
If manual calibration by adjusting magnetic component distance is performed, then measurement precision is improved, but device complexity and ease of operation worsen due to frequent manual interventions
Solution Approach 1:
The system automatically maintains measurement precision through self-calibration. The processor continuously monitors the relationship between impact element signals and output signals, automatically adjusting reference thresholds to maintain accuracy without requiring manual intervention, thus preserving precision while improving ease of operation.
Solution Approach 2:
The calibration system uses feedback from the impact element signals to automatically adjust the reference signal threshold. The processor compares actual impact signals with expected patterns and dynamically adjusts calibration parameters to maintain measurement precision, eliminating the need for manual feedback loops.
3Measurement precision
If frequent calibration is performed to maintain detection accuracy, then measurement precision is improved, but productivity decreases due to time-consuming recalibration processes
Solution Approach 1:
The automatic calibration system operates continuously or periodically without requiring system shutdown or manual intervention. The processor performs calibration calculations and adjustments while the system remains operational, ensuring continuous detection accuracy and maintaining high system availability and productivity.
Solution Approach 2:
The patent replaces time-consuming manual calibration procedures with rapid automated electronic calibration. The processor-based system performs calibration calculations and adjustments in seconds rather than requiring extended manual adjustment sessions, significantly reducing calibration time and maintaining higher productivity.
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 reduces the need for physical adjustments and maintenance by automatically setting and storing reference signals, ensuring the detector remains operational without requiring frequent recalibration of the magnetic components.
Implementation Method 1
The activation signal generator may be configured to translate movement of an impact element from a first position to a second position into generation of an activation signal
Implementation Method 2
The output signal is a function of variations in the impedance of a circuit connected to the magnetic amplifier caused by moving the magnetic field of the magnet closer to and farther away from the magnetic amplifier
Data Source
AI summary
A method for calibrating a moving object impact detector is disclosed. A controller may receive input indicative of movement of an impact element from a first position to a second position. The controller may also receive an activation signal corresponding to the movement of the impact element. The controller may further receive input indicative of instructions to correlate the activation signal with the movement of the impact element. The controller may selectively set the activation signal as a reference signal for the detector, with the reference signal being indicative of an impact the moving object impact detector is set to detect.