Vehicle Data Transmission Filtering for Map Updates
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Solution Overview
Problem
The increasing amount of data from vehicle-mounted cameras for map updates puts pressure on communication lines and increases communication costs, necessitating a solution to suppress unnecessary data transmission to servers.
Innovation Solution
A transmission necessity determination apparatus that assesses the collection degree and freshness of road-related data, as well as the stability of the vehicle-mounted system, to decide whether to transmit data to a server, preventing low-stability and low-reliability data from being sent.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If entire collected data is transmitted to the server, then data completeness for map updates is improved, but communication line pressure and communication cost increase
Solution Approach 1:
The system changes the parameters for data transmission by evaluating collection degree and freshness thresholds. Data is selectively transmitted based on whether collection degree is below a threshold or freshness is above a threshold, transforming the transmission decision from binary (all or nothing) to conditional (based on multiple parameters).
Solution Approach 2:
The system applies different transmission criteria to different data locations. By determining transmission necessity individually for each position based on local collection degree and freshness characteristics, the system optimizes data transmission quality for map update purposes.
2Quantity of substance
If road-related data with low stability is transmitted to the server, then data collection coverage is improved, but data reliability deteriorates
Solution Approach 1:
The system extracts and removes low-stability data from the transmission stream. By determining not to transmit data where system stability is below a threshold, the system separates reliable data for transmission from unreliable data to be discarded, ensuring only quality data reaches the server.
Data Source
AI summary
A transmission necessity determination apparatus configured to determine whether or not to transmit road-related data acquired by a vehicle-mounted system to a server from a vehicle includes: a stability acquisition unit configured to acquire a stability of the vehicle-mounted system for each position from the vehicle-mounted system; and a transmission necessity determination unit configured to determine whether or not to transmit the road-related data to the server from the vehicle based on at least one of the collection degree of the road-related data for each position on the map and the freshness of the road-related data for each position and the stability of the vehicle-mounted system for each position.