Vehicle Sensor Detection Range Adjustment for Digital Map Updates
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Solution Overview
Problem
Existing digital map updating methods for vehicle navigation are inefficient and costly, requiring vehicles equipped with special reference-sensor systems to repeatedly travel routes for data collection, which is time-consuming and expensive.
Innovation Solution
A method and device that utilize vehicle-installed sensors with adjustable detection ranges and angles to selectively update digital maps by detecting and transmitting area data, allowing for central management and elimination of the need for reference-sensor system updates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If special reference-sensor systems are used for digital map updates, then measurement precision is improved, but device complexity and cost increase
Solution Approach 1:
The patent applies universality by enabling standard environment sensors to serve dual purposes: their original function for vehicle operation and an additional function for digital map updates. This eliminates the need for specialized reference-sensor systems while maintaining update capability using existing sensor infrastructure in vehicles.
Solution Approach 2:
The patent uses copying by creating digital representations (area data) of physical environment sections detected by sensors. These digital copies are then used to update map material, replacing the need for complex physical reference-sensor systems with simpler sensor data processing and digital replication.
2Loss of information
If vehicles repeatedly travel routes for data collection, then map update completeness is improved, but loss of time and productivity decrease
Solution Approach 1:
The patent implements continuity of useful action by enabling ongoing, incremental map updates as vehicles naturally traverse their routes during normal operation. Instead of requiring dedicated repeated trips for data collection, the system continuously accumulates sensor data that automatically updates map material, transforming idle vehicle movement into productive map maintenance.
Solution Approach 2:
The system applies self-service by automatically collecting, processing, and updating map material using sensor data from vehicles during their normal operations without requiring dedicated data collection missions. The map updating process serves itself using existing vehicle traffic and sensor capabilities, eliminating the need for organized repeated route traversals.
3Adaptability or versatility
If sensors with adjustable detection ranges are used, then adaptability is improved, but device complexity increases
Solution Approach 1:
The patent applies dynamics by implementing adjustable detection ranges and opening angles in sensors, allowing the sensor characteristics to change dynamically based on the specific update requirements. The sensor can adapt its detection parameters to match the spatial extent and characteristics of the map area being updated, optimizing data collection for different scenarios.
Data Source
AI summary
A method is described for updating a digital map for vehicle navigation. The method includes a step of determining an adjustment signal for adjusting a detection range of an environment sensor of a vehicle to a section of an environment of the vehicle that corresponds to an area of the digital map to be updated, using an item of information about the area to be updated, and the method including a step of supplying area data for updating the digital map, the area data representing an image of the section of the environment detected by the environment sensor.