Map Information Update Server Using Freshness-Based Incentives
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Solution Overview
Problem
Existing map information update systems do not effectively award incentives for transmitting data from vehicles to servers, as they reward high reliability sensor information even when it's not needed for map updates, leading to inefficient communication costs.
Innovation Solution
A map information update system that includes a map database, a map information update server, a vehicle position recognition unit, an external environment generation unit, a map freshness calculation unit, and an incentive point awarding unit, which awards points based on map freshness and allows users to choose when to transmit external environment information, presenting freshness and incentive information to users to motivate data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If incentive points are awarded for high reliability sensor information, then user motivation to transmit data is improved, but communication costs increase when data is transmitted unnecessarily
Solution Approach 1:
The patent changes the incentive awarding parameter from sensor reliability to map freshness. The map freshness calculation unit calculates how outdated map information is in each area, and incentive points are awarded based on this freshness parameter. This ensures incentives are only given when transmitted data can actually update outdated map information, avoiding unnecessary communications and reducing communication costs while maintaining user motivation.
2Measurement precision
If map information is updated frequently, then map accuracy is improved, but communication costs increase due to more data transmission
Solution Approach 1:
The patent applies local quality by calculating map freshness for each specific area rather than uniformly across all regions. The map freshness calculation unit divides the map into multiple areas and calculates freshness independently for each area. This allows the system to target only areas with outdated information for data transmission and incentive awarding, improving map accuracy where needed while avoiding unnecessary communications in already-updated areas, thus reducing overall communication costs.
3Productivity
If incentive points are awarded without considering map freshness, then user participation is improved, but incentive allocation efficiency deteriorates
Solution Approach 1:
The patent implements feedback by using map freshness information to guide incentive point allocation. The incentive point awarding unit receives map freshness data from the calculation unit and uses this feedback to determine whether to award incentives and how many points to award. This feedback mechanism ensures that incentives are allocated efficiently based on actual map update needs, maintaining high user participation while optimizing incentive allocation efficiency by avoiding rewards for redundant data transmissions.
Data Source
AI summary
A map information update system includes a map database; a server; a vehicle position recognition unit configured to recognizes a vehicle position of a vehicle on a map; an external environment information generation unit configured to generate external environment information related to an external environment of the vehicle in association with the vehicle position on the map based on the vehicle position on the map and a detection result of a sensor mounted on the vehicle; a map freshness calculation unit configured to calculate map freshness per area set in advance on map information; a awarding unit configured to award a user of the vehicle or the vehicle an incentive point which is set in advance in accordance with the map freshness of the area corresponding to the external environment information, when the external environment information is transmitted to the server from the vehicle; and a user interaction unit.