In-Vehicle Device Redundant Data Filtering for Server Load Reduction
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Solution Overview
Problem
The collection of data from multiple vehicles leads to an increase in redundant information, which burdens the server with processing loads and inefficient use of resources, as redundant data includes identical or similar information pieces.
Innovation Solution
An in-vehicle device with a controller that transmits lists of identification information to other vehicles, determining whether to transmit specific data pieces based on whether they are redundant, and updating lists to prevent redundant transmissions to a server, thereby optimizing resource use and reducing server load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If data is collected from multiple vehicles, then the amount of data available for analysis increases, but the amount of redundant information increases, causing processing burden on the server
Solution Approach 1:
The system performs preliminary actions by having each in-vehicle device create and exchange information lists containing identification information of held information pieces before data transmission. This allows vehicles to identify and eliminate redundant data in advance, so that only non-redundant data is transmitted to the server, reducing the server's processing burden while maintaining the benefit of collecting data from multiple vehicles
2Adaptability or versatility
If the number of vehicles subject to data collection increases, then more diverse traffic information is available, but redundant data increases, causing inefficient resource use
Solution Approach 1:
The system enables preliminary identification of redundant information through exchange of information lists between in-vehicle devices before transmission to the server. This preliminary action allows the system to adaptively determine which data to transmit based on what other vehicles already hold, avoiding wasteful transmission of redundant data while maintaining diverse traffic information coverage
Solution Approach 2:
The system implements feedback mechanisms where in-vehicle devices exchange information lists containing identification information of data they hold. This feedback allows each vehicle to adjust its transmission decisions based on the data landscape of other vehicles, enabling efficient resource use by transmitting only non-redundant information while maintaining adaptability to diverse traffic conditions
Data Source
AI summary
An in-vehicle device includes: a first communicator for inter-vehicle communication; a second communicator for communication with a predetermined transmission destination; and a storage configured to store first information pieces and a list including respective identification information pieces of the first information pieces; and a controller. The controller exchanges lists with a first in-vehicle device through the first communicator, and at a predetermined timing for transmitting the first information pieces stored in the storage to the predetermined transmission destination through the second communicator, when a predetermined condition is met, the controller does not transmit a first information piece included in the first information pieces and provided with an identification information piece included in both the list stored in the storage and a first list received from the first in-vehicle device and including respective identification information pieces of first information pieces each held by any of the other in-vehicle devices.