In-Vehicle Download Feasibility Control Using Position Feedback
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Solution Overview
Problem
Existing in-vehicle data download systems face reduced success ratios due to changes in communication environments, as predefined suitable and unsuitable download areas may shift, leading to frequent failures and interruptions.
Innovation Solution
An in-vehicle device equipped with a position information acquisition unit, a determination unit, and a recording unit that assesses download feasibility based on current position information and records execution results to adaptively manage data downloads, while a monitoring server generates and transmits execution feasibility information to vehicles within a geographically predetermined range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If download locations are predefined in advance, then initial download success is achieved, but download success ratio decreases when communication environment changes
Solution Approach 1:
The system records download execution results (success/failure) along with position information, and uses this feedback to update download feasibility determinations for future downloads. The determination unit references past execution results to adapt to changing communication environments, thereby maintaining high download success ratios even when predefined locations become unsuitable.
Solution Approach 2:
The system transitions from static predefined download locations to dynamic location selection based on real-time position information and historical execution results. The download feasibility determination is continuously updated based on recorded data, allowing the system to adapt dynamically to changing communication conditions and vehicle movement patterns.
2Productivity
If download feasibility is determined statically, then system complexity is reduced, but download efficiency decreases due to failures and interruptions
Solution Approach 1:
The system automatically records download execution results and position information, and autonomously determines download feasibility based on this recorded data without requiring external intervention. The determination unit uses the recorded execution results to make intelligent decisions about where and when to perform downloads, improving efficiency while maintaining manageable system complexity through automated self-optimization.
Solution Approach 2:
The system performs preliminary recording of download execution results and position information during actual download attempts. This preliminary data collection enables the determination unit to make informed feasibility assessments before initiating future downloads, preventing failures and interruptions by selecting optimal download locations in advance based on historical performance.
Data Source
AI summary
A central ECU includes a download execution feasibility determination unit that determines whether or not execution of download of data from an external distribution server of a vehicle is feasible based on position information of the vehicle, a download execution unit that executes the download in a case where the download execution feasibility determination unit determines that the execution of the download is feasible, and a transmission unit that records execution failure result information including position information of the vehicle when the download is executed by the download execution unit and fails, in an external monitoring server of the vehicle, in which the download execution feasibility determination unit determines whether or not the execution of the download is feasible based on the execution failure result information recorded in the distribution server and the current position information of the vehicle.