Aircraft Wireless Network Node for Interference Source Localization
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Solution Overview
Problem
Wireless communications networks in transportation means, such as aircraft, face challenges in reliably identifying and mitigating sources of interference that can disrupt communication, including electromagnetic interference from various sources both within and outside the aircraft.
Innovation Solution
A network node with an interference-power-ascertaining component and a transmitting component that measures and transmits interference power to a control device, allowing for the determination of the direction, distance, and position of interfering sources, enabling effective countermeasures to maintain reliable communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wireless communications are used in aircraft to interconnect electronic devices, then network connectivity and information transmission are improved, but interference from electromagnetic radiation sources disrupts communication reliability
Solution Approach 1:
The system performs preliminary identification and classification of interference sources before they critically impact communication. The network node continuously monitors and detects interfering radiation, categorizes it by type (intentional/unintentional, internal/external), and enables proactive mitigation measures to maintain communication reliability
Solution Approach 2:
The system establishes a feedback loop where interference detection results are continuously transmitted to the control device, which then adjusts transmission parameters or activates countermeasures. This closed-loop control enables dynamic adaptation to interference conditions, resolving the contradiction between maintaining reliable communication and operating in electromagnetic environments
2Reliability
If interference sources are identified and mitigated in real-time, then communication reliability is improved, but system complexity increases due to additional monitoring and control mechanisms
Solution Approach 1:
The system divides interference monitoring and mitigation into separate functional modules: a network node for detection, a control device for analysis and decision-making, and execution mechanisms for countermeasures. This segmentation allows each component to specialize in specific tasks, improving overall reliability while managing complexity through modular architecture
Solution Approach 2:
The network node is designed to perform multiple functions: normal wireless communication, interference detection, interference classification, and data transmission to the control device. By making the network node multi-functional, the system reduces the need for separate dedicated interference monitoring equipment, thereby managing system complexity while maintaining reliability
3Measurement precision
If the network node transmits interference power data to the control device, then interference source localization accuracy is improved, but communication bandwidth and data transmission requirements increase
Solution Approach 1:
The system extracts only the essential interference parameters (interference power levels, directional information) needed for localization from the raw electromagnetic environment data. By transmitting only these critical measured values to the control device rather than complete spectral analysis data, the system achieves accurate interference source positioning while minimizing bandwidth consumption
Data Source
AI summary
A network node of a wireless communications network is provided in a means of transportation, for an aircraft, for ascertaining sources of interference, to a system with such a network node, to an associated method for ascertaining sources of interference of a wireless communications network provided in a means of transportation, for the aircraft, and to a computer program for executing the method. The network node includes an interference-power-ascertaining component, for ascertaining an interference power of an interfering radiation emitted from a source of interference, and a transmitting component for wireless or wirebound transmission of the ascertained interference power to a control device for determining at least one of a direction of the interfering radiation and a distance of the source of interference, including the position of the source of interference, on the basis of the ascertained interference power.