Lead AV Construction Zone Detection for Coordinated Rerouting
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Solution Overview
Problem
Current autonomous vehicle navigation technologies fail to account for encountering specific unexpected situations on a road, requiring manual driver intervention.
Innovation Solution
A lead autonomous vehicle (AV) equipped with sensors and a control subsystem identifies unexpected situations like unknown objects, road closures, or construction zones, updates its routing plan, and communicates with following AVs to navigate around or re-route accordingly, with an operation server confirming and updating map data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If current autonomous vehicle navigation technologies are used, then basic navigation function is maintained, but the system cannot handle unexpected situations like construction zones, requiring manual driver intervention
Solution Approach 1:
The system performs preliminary actions by detecting unexpected situations like construction zones before they become critical problems. The lead AV identifies these situations ahead of time and proactively communicates with following AVs to update their routing plans, preventing navigation failures rather than reacting to them
Solution Approach 2:
The system implements feedback mechanisms where the lead AV's detection of construction zones triggers automated responses. The communication between lead and following AVs creates a feedback loop that continuously updates navigation decisions based on real-time environmental information, enabling the system to adapt to unexpected situations automatically
2Reliability
If the lead AV detects and communicates construction zone information to following AVs, then navigation safety is improved, but communication infrastructure and coordination complexity increase
Solution Approach 1:
The system uses an intermediary communication infrastructure between the lead AV and following AVs. This intermediary layer handles the complex tasks of message transmission, routing plan updates, and coordination, isolating the complexity from the core navigation functions while maintaining safety through reliable information exchange
3Reliability
If the lead AV navigates around unknown objects by diverting lanes, then navigation reliability is improved, but following AVs may encounter conflicts if not properly informed
Solution Approach 1:
The system implements continuous feedback communication where the lead AV informs following AVs of lane diversions and construction zone locations. This feedback ensures that following AVs receive real-time information about the lead AV's navigation adjustments, preventing information loss and enabling coordinated responses
Solution Approach 2:
The lead AV performs preliminary communication with following AVs before executing lane diversions around construction zones. By notifying following AVs in advance of the intended navigation changes, the system prevents conflicts and ensures smooth coordination without requiring reactive maneuvers
Data Source
AI summary
A lead autonomous vehicle (AV) includes a sensor configured to observe a field of view in front of the lead AV. Following AVs are on the same road behind the lead AV. A processor of the lead AV is configured to detect a construction zone. The processor sends a first message to an operation server, indicating that the construction zone is detected. The processor updates driving instructions of the lead AV to navigate around the construction zone. While navigating around the construction zone, the processor sends sensor data associated with the construction zone to the operation server. The operation server determines an extent of the construction zone. If the operation server determines that the construction zone is extensive, it sends re-routing instructions to the AVs. If the operation server determines that the construction zone is not extensive, it sends instructions to navigate around the construction zone to the AVs.