Avionics Network Configuration Fingerprinting for Fast Verification
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Solution Overview
Problem
In complex avionics networks, existing methods fail to reliably and efficiently verify configuration changes across numerous electronic components, leading to potential unauthorized modifications and increased complexity in monitoring and documentation.
Innovation Solution
An avionics network with a configuration monitoring device that filters and compares configuration parameters against reference values, using a parameter filter device and adjustment device to dynamically assess the configuration state, ensuring timely and accurate verification of network settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If all configuration parameters of numerous avionics components are monitored and verified, then the reliability and security of configuration verification is improved, but the device complexity and computational burden increase disproportionately
Solution Approach 1:
The patent extracts only the essential configuration parameters needed for verification by introducing a parameter filtering device. This device selectively filters out non-critical parameters from the complete set of configuration parameters, retaining only those necessary for reliable verification. This resolves the contradiction by maintaining verification reliability while reducing the complexity burden of processing all parameters.
Solution Approach 2:
The verification system is segmented into multiple functional modules: parameter collection unit, parameter filtering device, parameter comparison device, and reference parameter memory. This segmentation allows each module to handle specific tasks efficiently, reducing the overall system complexity while maintaining comprehensive verification capability across all avionics components.
2Reliability
If configuration parameters from all avionics components are collected and verified, then the completeness of configuration monitoring is improved, but the time required for verification increases
Solution Approach 1:
The system performs preliminary filtering of configuration parameters before the actual verification comparison. The parameter filtering device pre-processes the collected parameters by identifying and retaining only those that are critical for verification, discarding redundant information in advance. This preliminary action significantly reduces the verification time while maintaining complete monitoring of all essential configuration aspects.
3Reliability
If a comprehensive verification scheme is implemented to monitor and document changes in configuration, then the security against unauthorized modifications is improved, but the ease of operation and implementation becomes more difficult
Solution Approach 1:
The configuration monitoring device automatically performs the complete verification process without requiring manual intervention. It autonomously collects configuration parameters from all avionics components, filters them through the parameter filtering device, compares them against reference values using the parameter comparison device, and generates verification results. This self-service capability maintains high security while significantly improving ease of operation, as the system handles all verification tasks automatically.
Data Source
Figure 1~3
AI summary
The invention relates to an avionics network comprising a plurality of avionics components and a configuration monitoring device, which is connected by wire or wirelessly to the plurality of avionics components. The configuration monitoring device here has at least one configuration data interface which is designed to receive a plurality of configuration parameters characterizing the operating status of the avionics components. The configuration monitoring device further comprises a parameter filtering device which is connected to the at least one configuration data interface and which is designed to filter a subset of the configuration parameters received. The configuration monitoring device additionally comprises reference parameter storage, which is designed to store sets of reference values for configuration parameters, and a parameter comparison device, which is coupled to the reference parameter storage and the parameter filtering device, and which is designed to compare the subset of configuration parameters received and filtered by the parameter filtering device with a set of reference values for the configuration parameters stored in the reference parameter storage.