On-Vehicle Database Construction via Attribute Information Extraction
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Solution Overview
Problem
The limited storage capacity of on-vehicle devices restricts the ability to store all music information from connected smartphones, impairing user convenience by disabling the music search function when storage capacity is insufficient.
Innovation Solution
An electronic device with a connection means to a mobile terminal, an acquisition means for attribute information, a storage means, a search means, and a control means that determines and manages storage capacity by removing attribute information to ensure sufficient free space, enabling the creation of a search database and maintaining user convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If all attribute information is stored in the on-vehicle device, then the music search function can be fully enabled, but the limited storage capacity is exceeded
Solution Approach 1:
The patent extracts only the necessary attribute information for music searching from the mobile terminal and stores it in the on-vehicle device's limited storage. By taking out only the essential data elements required for the search function rather than storing all possible attribute information, the system enables the music search feature while respecting the storage capacity constraints of the on-vehicle device.
2Quantity of substance
If attribute information is removed to free up storage space, then storage capacity is sufficient, but the completeness of music information is reduced
Solution Approach 1:
The patent applies local quality by selectively storing different types of attribute information based on their relevance to the music search function. Instead of uniformly storing or removing all attribute information, the system identifies and retains only those attributes that are locally relevant to searching and reproducing music, while removing or not storing less critical information. This selective approach maintains storage sufficiency while preserving the essential information needed for the core functionality.
Data Source
AI summary
A method of constructing a database in an on-vehicle device includes the steps of connecting a mobile terminal storing a plurality of pieces of music and music information associated with each of the plurality of pieces of music, acquiring the music information of each piece of music from the mobile terminal, when the acquired music information is stored in a storage space, determining whether free capacity of the storage space is insufficient, and when it is determined that the free capacity of the storage space is insufficient, removing at least one piece of music information of each piece of music from the storage space, and constructing a database for searching music on the basis of the music information stored in the storage space.