Vehicle Map Updating by Area-Based Road Change Detection
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Solution Overview
Problem
Conventional map updating systems face challenges in maintaining accurate map data, particularly in areas with varying traffic conditions, where excessive data communication occurs in high-traffic areas and insufficient data is collected in low-traffic areas, leading to unreliable updates and freshness issues.
Innovation Solution
An information processing apparatus divides the map into areas and determines the need for updates based on changes and vehicle actions, selectively requesting detection data from vehicles capable of accurate detection, such as those with high sensor accuracy and specific running modes, to improve data accuracy and reduce unnecessary communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If map data is updated using data from all vehicles, then information freshness is improved, but communication load and processing complexity increase excessively in high-traffic areas
Solution Approach 1:
The map is divided into multiple areas, and update determination is performed independently for each area based on local vehicle action frequencies and detection data quality, rather than processing all areas uniformly
Solution Approach 2:
Different update strategies are applied to different areas: areas with high-quality detection data and significant road shape changes receive updates, while areas with insufficient quality data or minor changes maintain existing map data, avoiding unnecessary communication and processing
2Reliability
If detection requests are sent to all vehicles, then data coverage is improved, but unnecessary data communication occurs in areas with sufficient map accuracy
Solution Approach 1:
The system preliminarily determines whether map updates are necessary by comparing current road shapes with stored map data and evaluating vehicle action frequencies before sending detection requests, avoiding unnecessary communication
Solution Approach 2:
The system uses feedback from vehicle actions and detected road shape changes to dynamically determine update needs, sending detection requests only when actual changes are detected or vehicle behavior indicates potential map inaccuracies
3Reliability
If update frequency is increased to maintain accuracy, then information freshness is improved, but processing load and communication traffic increase
Solution Approach 1:
The system performs periodic update determination at predetermined intervals by comparing current road shapes with stored map data, updating only when actual changes are detected rather than at fixed high frequency
Solution Approach 2:
The system applies update processing only to areas where it is actually necessary (where vehicle actions indicate map inaccuracies or where road shape changes are detected), rather than uniformly updating all areas
Data Source
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AI summary
An information processing apparatus is configured to distribute, to a vehicle, a map showing a road shape of a road on which the vehicle runs makes, for each of a plurality of areas and determine whether it is necessary to update the map of that area. The determination is based on at least either an amount of change from the road shape shown by the map to the road shape at a present time in each of the plurality of areas or the number of occurrences of a predetermined action of a vehicle having run through in each of the plurality of areas.