Route Planning for Stable Uplink and Downlink Vehicle Monitoring
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Solution Overview
Problem
Existing remote control systems for vehicles do not adequately consider the differences in communication quality requirements between uplink and downlink communications, leading to instability in bidirectional wireless communication during remote monitoring and control.
Innovation Solution
A route providing apparatus that evaluates communication quality and stability for each direction of communication, determining a stable movement route by considering the specific communication quality requirements for both uplink and downlink communications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single route is selected without considering directional communication quality differences, then route selection is simple, but bidirectional communication stability deteriorates
Solution Approach 1:
The patent segments the communication quality evaluation into two independent directional assessments: uplink communication quality (from vehicle to server) and downlink communication quality (from server to vehicle). Each direction is evaluated separately using distinct quality indicators, allowing the system to identify routes that satisfy both directional requirements independently rather than using a single aggregated route metric.
Solution Approach 2:
The patent introduces a dimensional distinction by evaluating communication quality along two separate dimensions (uplink and downlink) rather than a single dimension. This dimensional separation enables the system to capture the asymmetric nature of communication requirements in remote monitoring scenarios, where upload and download quality demands differ significantly.
2Reliability
If communication quality is evaluated for each direction separately, then communication stability improves, but evaluation complexity increases
Solution Approach 1:
The evaluation process is segmented into distinct uplink quality assessment and downlink quality assessment modules. Each module independently evaluates its respective directional quality using appropriate metrics, and the final route selection integrates both assessments through a unified selection criterion that checks satisfaction of both directional requirements.
Solution Approach 2:
The patent performs evaluation for each communication direction separately, which constitutes a more thorough (excessive) evaluation compared to single-direction assessment. This partial separation allows the system to focus evaluation resources on each direction's specific requirements while maintaining overall system reliability.
Data Source
AI summary
The moving body receives data from a remote monitoring apparatus and transmits data to the remote monitoring apparatus, via the wireless communication network. A candidate route acquisition unit acquires a candidate route of the moving body to a destination. A communication quality evaluation unit evaluates communication quality of the wireless communication network at each location included in the candidate route for each direction of communication by using communication quality information for each direction of communication. A candidate route evaluation unit evaluates communication stability of the candidate route by using communication quality evaluated for each direction of communication. A route determination unit determines a movement route of the moving body among the candidate routes by using an evaluation result of the communication stability.