Aircraft Proximity Sensor for RFID Tag Deactivation
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Solution Overview
Problem
Portable RFID tags attached to shipments face the challenge of needing to deactivate their wireless communication circuitry when in the vicinity of operational aircraft, as human intervention is prone to oversight, and existing automated deactivation methods rely on detecting aircraft movement or pressure altitude, which may not be reliable.
Innovation Solution
An aircraft proximity sensor system comprising a control module and an aircraft proximity sensor module, which includes a tri-axis electromagnet field sensor and an aircraft/tower radio communication sensor, to detect the presence of operational aircraft and automatically deactivate the radio frequency transmitter, ensuring compliance with airline regulations by disabling transmission when the device is near an aircraft.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If automated deactivation methods using existing sensors (accelerometer, barometric pressure sensor) are used, then deactivation can be automated, but the reliability is insufficient because these sensors rely on aircraft movement or pressure altitude changes that may not be detected reliably
Solution Approach 1:
The patent introduces an aircraft proximity sensor module as an intermediary detection system that uses electromagnetic field sensing and radio communication frequency detection to indirectly detect aircraft presence. This mediator system provides more reliable detection than direct reliance on aircraft movement or pressure changes, enabling automated deactivation while improving reliability through alternative detection mechanisms.
Solution Approach 2:
The patent replaces mechanical/physical sensors (accelerometer, barometric pressure sensor) with electromagnetic field-based detection methods. By substituting mechanical detection systems with electromagnetic sensing, the system achieves more reliable aircraft proximity detection that is not dependent on aircraft movement or atmospheric pressure changes.
2Reliability
If manual deactivation by human intervention is used, then the device can be deactivated when needed, but human oversight may be overlooked and deactivation may not occur
Solution Approach 1:
The system implements self-service automation where the device automatically detects aircraft proximity and deactivates its transmitter without requiring human intervention. The control module autonomously processes sensor data and executes deactivation commands, eliminating the need for manual operation while ensuring reliable deactivation occurs whenever aircraft are nearby.
Solution Approach 2:
The system establishes a feedback loop where sensor modules continuously monitor for aircraft presence, the control module processes this information, and the transmitter state is automatically adjusted accordingly. This closed-loop feedback system ensures that deactivation decisions are based on real-time detection data, providing reliable automated control without human oversight.
3Loss of information
If the transmitter remains active for tracking purposes, then location tracking can be maintained, but interference with aircraft electronics may occur
Solution Approach 1:
The system dynamically adjusts the transmitter state based on real-time aircraft proximity detection. The transmitter operates normally when aircraft are absent but automatically deactivates when aircraft are detected nearby. This dynamic adaptation allows the system to maintain tracking data continuity during normal operations while preventing interference with aircraft electronics when needed.
Solution Approach 2:
The system performs preliminary detection of aircraft presence before interference can occur. By continuously monitoring for aircraft proximity and preemptively deactivating the transmitter when aircraft are detected, the system prevents harmful interference before it can affect aircraft electronics, while maintaining tracking capability during safe periods.
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 effectively and automatically deactivates RF transmission when an aircraft is detected, preventing interference with aircraft electronics and ensuring regulatory compliance, even before aircraft movement begins, by utilizing a combination of radio communication and electromagnetic field detection.
Implementation Method 1
the aircraft proximity sensor module includes a tri-axis electromagnet field sensor
Implementation Method 2
the aircraft proximity sensor module includes an aircraft/tower radio communication sensor
Data Source
AI summary
An aircraft proximity sensor system includes a control module in communication with a transceiver module and an aircraft proximity sensor module, the control module operable to disable transmission by the transceiver module in response to the aircraft proximity sensor module.