Vehicle Navigation System Location-Based Video Search
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Solution Overview
Problem
Conventional vehicle black boxes provide only superficial information and fail to effectively meet user demands for objective data, especially in accident scenarios.
Innovation Solution
A vehicle navigation system that includes a display, input unit, storage for video data mapped with location information, and a communication unit to receive and output video data from a vehicle black box, allowing for the search and display of relevant video data based on user input and location data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If conventional vehicle black box provides only simple information, then device complexity is reduced, but information quality and user demand satisfaction deteriorate
Solution Approach 1:
The patent combines the vehicle black box with a navigation system, merging two separate systems into one integrated unit. This integration allows the system to provide both simple operational data from the black box and location-based video data from the navigation system, thereby improving information quality without requiring a completely separate complex system.
Solution Approach 2:
The integrated system performs multiple functions: it records vehicle operational data (black box function), stores video data with location information (navigation function), and provides both types of information upon request. This multi-functionality allows the system to deliver comprehensive information quality while maintaining a single unified device structure.
2Measurement precision
If video data is searched using precise location data, then search accuracy is improved, but user convenience deteriorates when users input incorrect location information
Solution Approach 1:
The system performs a partial search by first querying video data using the user-provided location information, even if it may be imprecise. If no results are found or the results are insufficient, the system then performs an additional search using precise location data from the navigation system. This two-stage approach maintains user convenience while ensuring search accuracy.
Solution Approach 2:
The navigation system acts as an intermediary between the user's potentially imprecise location input and the video data storage system. It mediates by comparing the user input with its own precise location data and using the more accurate navigation system location information to retrieve the correct video data, thereby resolving the conflict between user convenience and search accuracy.
3Adaptability or versatility
If video data with location mapping is stored, then service versatility is improved, but storage requirements and system complexity increase
Solution Approach 1:
The system performs preliminary action by pre-mapping video data with location information during the data storage phase. Video footage captured by the navigation system is automatically associated with GPS coordinates and timestamp data, creating a pre-organized database structure. This preliminary organization enables versatile location-based queries without requiring complex real-time processing during data retrieval.
Solution Approach 2:
The system creates a copied and structured representation of location data alongside video data. Instead of storing only raw video files, the system maintains parallel location information structures that can be independently queried. This copying approach enables versatile services like location-based video retrieval and route reconstruction without fundamentally changing the core video storage mechanism.
Data Source
AI summary
A navigation system, a server connected thereto, and a method for controlling a vehicle navigation system are provided. The vehicle navigation system includes a display; an input unit configured to receive input information corresponding to a reference position; a storage configured to store video data mapped with first location data, and map data; a communication unit configured to receive the video data from a vehicle black box installed in a vehicle; and a controller configured to obtain second location data from the map data using the input information, to search the storage for video data mapped with the first location data corresponding to a location within a predetermined distance from a location corresponding to the second location data and to output the search result to the display. According to the present invention, it is possible to search video data or video frames even when the user does not input information on a correct location by searching video data mapped with first location data corresponding to a location within a predetermined distance from a location corresponding to second location data obtained using information input by the user.