In-Vehicle Data Collection System with Alternativity Determination
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
As the amount of data communication between in-vehicle terminals and base stations increases, issues such as decreased communication speed and quality become likely, due to capacity shortages and inefficient data management.
Innovation Solution
A data collection system that includes an in-vehicle terminal with a data acquisition unit, a temporary storage unit, and a capacity shortage prediction unit, which predicts storage capacity shortages and initiates a data necessity inquiry to the collection center. The system also includes a collection center with an alternativity determination unit that assesses data replaceability and determines whether to discard or keep the data based on re-acquisition possibilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If data is transmitted from in-vehicle terminals to base stations, then data collection capability is improved, but communication speed and quality deteriorate due to increased data volume
Solution Approach 1:
The system performs preliminary actions by predicting storage capacity shortages before they occur and proactively inquiring about data necessity. The in-vehicle terminal predicts when storage will be full and asks the collection center in advance whether transmitted data is needed, allowing the center to prepare for data reception and manage bandwidth efficiently before communication bottlenecks occur.
Solution Approach 2:
The patent inverts the traditional data transmission approach by having the in-vehicle terminal ask 'Is this data necessary?' rather than simply transmitting all collected data. The collection center responds with discard or keeping notices, fundamentally reversing the data flow decision-making process from client-initiated transmission to server-directed data selection.
2Reliability
If all acquired data is stored in temporary storage, then data availability is improved, but storage capacity is depleted leading to communication inefficiency
Solution Approach 1:
The system implements discarding and recovering by selectively eliminating unnecessary data from temporary storage. The collection center evaluates transmitted data and issues discard notices for data that is not needed, allowing the in-vehicle terminal to free up storage capacity while maintaining availability of only the necessary data subsets.
Solution Approach 2:
The patent changes the parameter of data retention by introducing dynamic data necessity evaluation. Instead of statically storing all data, the system transforms the storage parameter from 'store everything' to 'store only necessary data' by implementing the data necessity inquiry mechanism and alternativity determination.
3Ease of operation
If data transmission frequency is increased to prevent storage shortage, then storage management is improved, but communication load increases reducing overall system efficiency
Solution Approach 1:
The system implements self-service by enabling the in-vehicle terminal to autonomously manage its storage capacity. The terminal predicts its own storage shortages, initiates data necessity inquiries, and executes discard operations based on collection center responses, eliminating the need for continuous monitoring and manual storage management while reducing unnecessary communication traffic.
Data Source
AI summary
A data collection system includes: an alternativity determination unit determining whether or not data has alternativity, allowing replacement of the data with alternative data when a data necessity inquiry transmitted from an in-vehicle terminal is received by a center-side reception unit; and a center-side transmission unit (i) transmitting a discard notice back to the in-vehicle terminal that has transmitted the data necessity inquiry, and letting the in-vehicle terminal to discard the data based on a determination by the alternativity determination unit that the data has alternativity, and (ii) transmitting a keeping notice back to the in-vehicle terminal that has transmitted the data necessity inquiry, and letting the in-vehicle terminal to keep the data based on a determination by the alternativity determination unit that the data has no alternativity.