Route Planning Avoiding Signal Blind Areas
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Solution Overview
Problem
The increasing number of vehicles on roads and the need for continuous network connectivity during navigation pose challenges for effective route planning, particularly in areas with signal blind spots where network communication and positioning services are unreliable.
Innovation Solution
A route planning method that involves detecting route planning request failures, generating request failure logs, and sending them to the cloud for signal blind area marking. This method ensures that navigation routes avoid signal blind areas, maintaining network connectivity and positioning stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If route planning is performed in areas with signal blind spots, then navigation coverage is improved, but network communication reliability deteriorates
Solution Approach 1:
The system performs preliminary identification of signal blind areas by collecting request failure information from multiple terminals and marking these areas in advance on the road network data. This allows the route planning function to proactively avoid blind areas before navigation requests are made, ensuring reliable network communication while maintaining broad navigation coverage.
Solution Approach 2:
The system establishes a feedback mechanism where terminal devices report request failure information (network usage failures and positioning failures) back to the server. The server uses this feedback to identify and mark signal blind areas, which are then incorporated into route planning to avoid future failures, thus improving communication reliability without limiting coverage.
2Duration of action of stationary object
If terminals are required to be always connected to network during navigation, then service continuity is improved, but susceptibility to signal blind areas increases
Solution Approach 1:
The system applies preliminary anti-action by pre-identifying signal blind areas through collected failure data and marking them on the road network. Route planning then actively avoids these marked areas, preventing terminals from entering zones where network connectivity would be lost, thus maintaining service continuity without exposing terminals to blind area risks.
Solution Approach 2:
The system converts the harmful effect of signal blind areas into a benefit by using reported failures to identify and mark these areas. The marked blind areas then become useful information for route planning, allowing the system to guide terminals away from problematic zones and ensure continuous service, thus transforming the original harm into a protective mechanism.
3Reliability
If route planning avoids signal blind areas, then network connectivity reliability is improved, but route flexibility deteriorates
Solution Approach 1:
The system performs preliminary marking of signal blind areas on the road network data before route planning occurs. This pre-processing allows the route planning function to treat marked areas as constrained zones, automatically finding alternative paths that maintain both reliability (by avoiding blind areas) and flexibility (by computing optimal routes around constraints rather than rigidly preventing any alternative routing).
Data Source
AI summary
Embodiments of this application disclose a route planning method and apparatus. The method includes obtaining request failure information in response to detecting a route planning request failure event, obtaining a failure event occurrence time, and generating a request failure log based on the request failure information and the failure event occurrence time, and sending the request failure log to a cloud, to cause an application deployed in the cloud to perform signal blind area marking on a road for route planning based on the request failure log. The technical solutions can identify a road in a signal blind area, to provide a planned route with covered communication and a more stable positioning network.