Vehicle Information Acquisition System Dynamic Collection
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Solution Overview
Problem
Existing vehicle information acquisition systems face challenges in maintaining diagnosis processing speed while ensuring accuracy, especially when tracing back the origin of abnormal values in program processing, which complicates the program and increases the amount of data needed for diagnosis.
Innovation Solution
A vehicle information acquisition system and method that involve an information management center communicating with vehicles to dynamically adjust the collection conditions for vehicle information based on analysis results, allowing for targeted data acquisition to narrow down causes of abnormalities and reduce overall data collection, even in vehicles with low information processing capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the number of pieces of vehicle information to be used for diagnosis is increased, then the diagnostic accuracy is improved, but the processing speed of the self-diagnosis falls due to increased processing load and storage shortage
Solution Approach 1:
The system performs preliminary actions by having the information acquisition portion collect and transmit relevant vehicle information to the information management center before the actual diagnosis is needed. The center analyzes this information in advance and determines optimized collection conditions, so that when diagnosis is required, the processing load on the vehicle's self-diagnosis unit is already reduced and the necessary information is prepared.
Solution Approach 2:
The information management center acts as an intermediary between the vehicle's information acquisition portion and the self-diagnosis unit. It receives vehicle information, analyzes it to determine which pieces are truly necessary for diagnosis, and then guides the acquisition of only those specific pieces of information. This intermediary role filters and optimizes the information flow, reducing the burden on the vehicle's processing systems while ensuring diagnostic accuracy.
2Measurement precision
If the self-diagnosis unit processes more pieces of vehicle information, then the diagnostic accuracy is improved, but the processing load increases and storage area becomes insufficient
Solution Approach 1:
The system extracts only the necessary pieces of vehicle information from the total available information. The information acquisition portion, guided by collection conditions determined by the information management center, selectively acquires only those specific pieces of information that are relevant to the diagnosis, rather than processing all available vehicle information. This extraction approach reduces processing load and storage requirements while maintaining diagnostic accuracy.
Solution Approach 2:
The information management center performs preliminary analysis of vehicle information to determine which pieces are necessary for diagnosis before the self-diagnosis unit needs to process them. This advance determination allows the system to prepare and transmit only the essential information, reducing the processing load on the vehicle's self-diagnosis unit while ensuring that all necessary information is available for accurate diagnosis.
3Measurement precision
If the program traces back the processing procedure to identify the origin of abnormal values, then the diagnostic accuracy is improved, but the program complexity increases
Solution Approach 1:
The information management center serves as an intermediary that handles the complex task of analyzing processing procedures and tracing back to identify the origin of abnormal values. Instead of embedding complex tracing logic within the vehicle's self-diagnosis program, the system transmits relevant information to the center, which performs the detailed analysis and determines the cause. This externalizes the program complexity while maintaining high diagnostic accuracy.
Solution Approach 2:
The system performs preliminary information collection and transmission to the information management center, which then conducts the detailed analysis of processing procedures and identification of abnormal value origins. By moving this complex analytical work to the center and performing it as a preliminary action before final diagnosis, the vehicle's own program remains relatively simple while still achieving accurate cause identification.
Data Source
AI summary
A vehicle information acquisition system includes a vehicle and an information management center. The vehicle includes an information acquisition portion that acquires a piece of vehicle information, which is processed by an information processing unit, based on a set collection condition, and transmits the acquired piece of the vehicle information to the information management center. The information management center determines a new collection condition for the piece of the vehicle information, which is processed by the information processing unit, based on a result of an analysis of the transmitted piece of the vehicle information, and transmits the determined collection condition to the vehicle as a collection condition for a piece of vehicle information to be subsequently acquired by the information acquisition portion to re-set the transmitted collection condition in the information acquisition portion.