On-Vehicle Local Map Building via GPS Data Thresholding
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Solution Overview
Problem
Existing GPS-based navigation systems for automotive vehicles are static, costly to update, and not customized for individual driving habits, making them ineffective for non-common routes and lacking real-time adaptability to changes in road data.
Innovation Solution
An on-vehicle mapping system that uses GPS data and vehicle sensors to locally store and generate a personalized map of traveled routes, allowing for real-time data acquisition and storage based on specific thresholds, enabling adaptive route mapping and performance data association.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If pre-determined map data from third-party vendors is used, then comprehensive road coverage is achieved, but data storage requirements and cost increase
Solution Approach 1:
The system transitions from storing comprehensive pre-determined map data for entire regions to storing only locally relevant map data for the specific geographic area where the vehicle operates. The electronic controller selectively stores map data corresponding to the vehicle's current location, thereby reducing overall data storage requirements while maintaining adequate road coverage for local navigation needs.
Solution Approach 2:
The system extracts and stores only the necessary map data elements relevant to the vehicle's operational area rather than storing complete comprehensive maps. By extracting only the local geographic data needed for navigation, the system reduces data storage requirements while maintaining functional road coverage.
2Adaptability or versatility
If static map data from vendors is used, then initial navigation functionality is provided, but adaptability to new roads and driving habits is lost
Solution Approach 1:
The system transitions from static pre-determined map data to a dynamic map building approach where the electronic controller continuously receives GPS data and selectively stores new map data as the vehicle encounters new roads and locations. This dynamic approach enables real-time adaptation to new roads without requiring periodic vendor updates, eliminating the time loss associated with waiting for updates.
Solution Approach 2:
The system performs self-updating by automatically building and storing new map data as the vehicle travels, without requiring external vendor interventions. The electronic controller autonomously captures GPS data and expands the local map database, enabling the system to adapt to new roads and driving patterns independently and in real-time.
3Loss of information
If comprehensive map data is downloaded, then complete route information is available, but system complexity and update costs increase
Solution Approach 1:
The system stores complete and comprehensive route information for the local geographic area where the vehicle operates, rather than storing abbreviated or selective data. By maintaining complete map data only for the relevant local region, the system ensures route information completeness while reducing overall data volume and simplifying the storage system compared to maintaining comprehensive national or regional maps.
4Adaptability or versatility
If pre-determined maps are used, then standard navigation is provided, but customization for individual driving habits is lost
Solution Approach 1:
The system customizes map data storage to match individual driving habits by automatically learning and adapting to the driver's preferred routes, destinations, and driving patterns. The electronic controller analyzes GPS data over time and selectively prioritizes storage of map data corresponding to frequently traveled routes, thereby customizing the local map database without requiring manual configuration or increasing overall data size.
Data Source
AI summary
An automotive vehicle mapping system is disclosed. The mapping system includes an on-vehicle electronic storage device, a GPS receiver, and an electronic controller. The electronic controller is configured to receive GPS data from the GPS receiver indicative of a current location of the vehicle. The electronic controller is also configured to store the GPS data on the electronic storage device if the location of the vehicle is outside of a location envelope.