Path-Adaptive Communication Failure Detection for Unmanned Vehicles
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Solution Overview
Problem
Unmanned vehicles often experience communication failures due to varying communication quality along their routes, which existing technologies fail to detect efficiently, impacting task performance and safety.
Innovation Solution
A method and device for communication failure detection that involve obtaining located path information, selecting allowable periods for each path, and using a timer to reset or determine communication failure based on receipt of periodic messages, incorporating a communication module, storage device, and processing unit to manage communication disconnections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed communication failure detection period is used for all paths, then the detection method is simple, but it causes unnecessary failure triggers in paths with poor communication quality
Solution Approach 1:
The patent applies local quality by assigning different allowable periods to different paths based on their communication characteristics. Each path has its own customized detection period stored in a table, allowing the system to adapt to local communication conditions rather than using a uniform detection period across all paths.
Solution Approach 2:
The patent changes the detection parameter (allowable period) according to the specific path being monitored. By storing multiple allowable periods in a table and selecting the appropriate one based on the current path, the system dynamically adjusts the detection sensitivity to match communication conditions on each path.
2Reliability
If the detection period is extended to accommodate poor communication areas, then false failures are reduced, but real-time detection capability is compromised
Solution Approach 1:
The patent implements local quality by setting different allowable periods for different paths. Paths with poor communication quality have longer allowable periods to prevent false failures, while paths with good communication quality have shorter allowable periods for faster detection, thus optimizing both reliability and response time locally for each path.
Solution Approach 2:
The patent applies dynamics by making the detection period adaptive rather than fixed. The system dynamically selects the appropriate allowable period from a table based on the current path, allowing the detection parameters to change according to communication conditions without requiring manual reconfiguration.
3Reliability
If path-specific allowable periods are implemented, then detection accuracy is improved, but system complexity increases
Solution Approach 1:
The patent applies local quality by assigning different allowable periods to different paths based on their communication characteristics. Each path has its own customized detection period stored in a table, allowing the system to adapt to local communication conditions rather than using a uniform detection period across all paths.
Solution Approach 2:
The patent uses a universal table structure to store allowable periods for multiple paths, and a single detection mechanism that works for all paths by selecting the appropriate period from the table. This multi-functional approach handles both simple and complex detection scenarios through a unified system.
Data Source
AI summary
A method and a device for communication failure detection are provided. The method includes the following steps. Obtaining a piece of located path information of an unmanned vehicle. The piece of located path information indicates the unmanned vehicle is located at the located path of a plurality of paths in a route. Selecting one of a plurality of allowable periods as a located path allowable period according to the located path information. Setting a timer and starting the timer according to the located path allowable period. Under a condition that a communication module receives a periodic message before the timer reaches the located path allowable period, resetting the timer. Under a condition that the communication module does not receive the periodic message when the timer reaches the located path allowable period, determining that a communication failure occurs.