Monitoring Module Circuit for Aircraft Cable Interruption Detection
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Solution Overview
Problem
Existing electrical installations in aircraft, which rely on monitoring modules to detect cable interruptions, face challenges in reducing energy consumption and complexity while maintaining reliability, especially in environments sensitive to vibrations.
Innovation Solution
The proposed electrical installation incorporates a monitoring module that uses transistors and resistors to detect cable interruptions by generating distinct potentials on a measurement cable, allowing for efficient detection of power supply cable interruptions without requiring complex sensors, and is designed to be vibration-resistant and energy-efficient.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If inductive sensors are used to detect cable interruptions, then cable interruption detection capability is improved, but device complexity and sensitivity to vibrations increase
Solution Approach 1:
The patent replaces inductive sensors with a purely electrical monitoring approach using transistors and resistors. The monitoring module detects cable interruptions by measuring electrical potential differences generated when cables are interrupted, eliminating the need for mechanical or inductive sensing components. This substitution reduces device complexity and vibration sensitivity while maintaining detection capability.
Solution Approach 2:
The patent uses simple, inexpensive electrical components (transistors and resistors) instead of complex inductive sensors. These basic components are readily available, cost-effective, and sufficient for the detection function, reducing overall system complexity and cost while achieving the required reliability.
2Reliability
If inductive sensors are used to detect cable interruptions, then cable interruption detection capability is improved, but energy consumption increases
Solution Approach 1:
The patent replaces energy-intensive inductive sensors with a passive electrical circuit using transistors and resistors. The monitoring module operates by detecting voltage potentials generated naturally in the circuit when cables are interrupted, requiring minimal energy for operation while maintaining reliable detection capability.
3Device complexity
If simple monitoring modules are used, then device complexity and energy consumption are reduced, but reliability in vibration-sensitive environments deteriorates
Solution Approach 1:
The patent uses purely electrical components (transistors and resistors) that are inherently resistant to vibrations, eliminating mechanical moving parts that would be sensitive to vibration. The electrical circuit detects cable interruptions through potential difference measurements, which remain stable and reliable in vibration-prone aircraft environments.
Data Source
AI summary
Electrical installation comprising a monitoring module positioned between a sensor connected to a measurement cable and first and second power supply cables for the sensor. The monitoring module comprises a first transistor comprising a first and a second power electrode and a control electrode, the first and the second power electrodes of the first transistor being electrically connected to the second power supply cable and to the measurement cable, respectively, so that, when the first transistor is in the closed state thereof, a first fault value is generated on the measurement cable. The control electrode of the first transistor is connected to the first power supply cable so that the loss of first potential on the first power supply cable, caused by the interruption thereof, automatically triggers the switching of the first transistor to the closed state thereof.