ATN Link Status Segmentation for Message Loss
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Solution Overview
Problem
Current communication systems in the Aeronautical Telecommunication Network (ATN) only indicate a communication link as 'CONNECTED' or 'DISCONNECTED', failing to recognize a transitional operational state where messages cannot be delivered, leading to potential undetected message loss during a state that can last up to five minutes.
Innovation Solution
A method and system that display and announce at least three operational states of a communication link - 'OPERABLE', 'INOPERABLE', and 'TRANSITIONAL' - using visual and audio status indicators, allowing pilots and air traffic controllers to track the communication link's status and take necessary actions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If only two operational states (CONNECTED/DISCONNECTED) are indicated, then the display is simple, but the transitional state cannot be detected leading to potential message loss
Solution Approach 1:
The patent segments the communication link status into three distinct operational states: CONNECTED, DISCONNECTED, and TRANSITIONAL. This segmentation allows the system to detect and indicate the transitional state separately from the stable states, enabling reliable message delivery by alerting users when communication may be unavailable despite showing CONNECTED status.
Solution Approach 2:
The patent implements a feedback mechanism where the communication management unit monitors the actual delivery of messages and compares it with the indicated connection status. When messages are not delivered despite CONNECTED indication, the system provides feedback to display TRANSITIONAL state, creating a closed-loop status indication system that improves reliability.
2Loss of information
If three operational states are indicated, then message loss can be detected, but the display complexity increases
Solution Approach 1:
The patent segments the communication link status into three distinct operational states: CONNECTED, DISCONNECTED, and TRANSITIONAL. This segmentation allows the system to detect and indicate the transitional state separately from the stable states, enabling reliable message delivery by alerting users when communication may be unavailable despite showing CONNECTED status.
Solution Approach 2:
The patent employs visual indicators with different characteristics (such as color changes or distinct display patterns) to represent the three operational states. This allows the system to convey detailed status information through intuitive visual cues, making the enhanced status indication easy to understand and not overly complex for users.
3Productivity
If transitional state is not indicated, then the display remains simple, but communication restoration cannot be timely detected
Solution Approach 1:
The patent implements preliminary action by detecting the transitional state before communication is fully restored or permanently failed. The system monitors message delivery during the transitional period and provides advance warning to users, allowing them to prepare for potential communication issues or switch to alternative communication methods before the transitional state resolves.
Solution Approach 2:
The patent implements a feedback mechanism where the communication management unit monitors the actual delivery of messages and compares it with the indicated connection status. When messages are not delivered despite CONNECTED indication, the system provides feedback to display TRANSITIONAL state, creating a closed-loop status indication system that improves reliability.
Data Source
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AI summary
A method to indicate a transitional operational state of a communication link is provided. The method includes indicating the operational state of the communication link is operable, transmitting data between a communication management unit and an endpoint via the communication link, and determining if the transmitted data is received at the endpoint. The method also comprises continuing to indicate the operational state of the communication link is operable when the transmitted data is received at the endpoint and determining if a transport layer has timed out when the transmitted data is not received at the endpoint within a pre-selected time. The method also comprises indicating the operational state of the communication link is transitional when the transport layer has not timed out and the transmitted data is not received at the endpoint within the pre-selected time.