Vehicle Data Compression Using Reproducible Replacement Portions
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Solution Overview
Problem
Existing methods for data transmission in vehicles, especially over limited bandwidth mobile networks, struggle to transmit all relevant data effectively due to bandwidth limitations and the inability to achieve high compression ratios without data falsification.
Innovation Solution
A method that involves removing a data portion, typically noise, from the data and replacing it with an artificially generated reproducible replacement portion. This prepared data is then compressed and transmitted, with the replacement information being sent instead of the removed data portion, allowing for higher compression rates without data falsification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If lossless data compression is used, then data integrity is maintained, but compression ratio is low
Solution Approach 1:
The data is segmented into two distinct portions: a first data portion that is removed and replaced with artificially generated data, and a second data portion that is retained and compressed losslessly. This segmentation allows different compression strategies to be applied to different parts of the data, achieving both high overall compression ratios and preservation of critical information integrity in the retained portion.
Solution Approach 2:
The first data portion is extracted and removed from the original data set before compression. By taking out this portion and replacing it with artificially generated data, the system achieves higher compression ratios for the remaining critical data while maintaining sufficient information for reconstructing the complete data set after transmission.
2Quantity of substance
If lossy data compression is used, then compression ratio is high, but data integrity is compromised
Solution Approach 1:
Instead of directly compressing and transmitting the complete original data, the system creates a simplified copy consisting of the retained second data portion plus replacement information. This copy is transmitted efficiently, and the complete data is reconstructed at the receiving end by combining the decompressed second portion with artificially generated replacement data, achieving high compression while preserving data integrity.
3Loss of information
If all relevant data is transmitted over mobile network, then data completeness is achieved, but transmission bandwidth is insufficient
Solution Approach 1:
The system changes the parameter of data representation by removing the first data portion and replacing it with compact replacement information that can be used to regenerate the removed data. This parameter change dramatically reduces the amount of data that needs to be transmitted over the mobile network while ensuring that the complete original data can be reconstructed at the receiving end, thus maintaining data completeness within bandwidth constraints.
Data Source
AI summary
A method for a provision of data. The method includes the following steps carried out in an automated manner: ascertaining the data in a vehicle; carrying out a preparation of the ascertained data, in which a data portion of the data is removed and an artificially generated and reproducible replacement portion is defined by an item of replacement information as an approximation of the removed data portion in order to prepare the data for lossless data compression; carrying out the data compression of the prepared data; initiating a transmission of the data compressed by the data compression via a mobile radiotelephone network, in which the replacement information is transmitted instead of the data portion.