Battery Data Transmission via Difference Value Encoding
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Solution Overview
Problem
There is a need for efficient data management and transmission of battery condition data in electric vehicles to ensure user safety and optimal battery performance, as existing systems often rely on transmitting and storing entire measurement datasets, which is inefficient and wasteful.
Innovation Solution
An apparatus and method that calculate and transmit a difference value between a reference value and measurement data of a battery, such as voltage, current, or temperature, over a CAN network, allowing for efficient data transmission and storage by updating the reference value based on criteria like threshold ranges or update intervals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If entire measurement datasets are transmitted and stored, then data completeness is maintained, but data transmission efficiency deteriorates and storage requirements increase
Solution Approach 1:
The patent extracts only the essential information (difference values between current and reference measurement data) for transmission, rather than sending complete datasets. The receiver can reconstruct full measurement data by combining stored reference values with received difference values, thus maintaining data completeness while significantly reducing transmission data volume
Solution Approach 2:
The patent transforms the data representation from absolute measurement values to relative difference values. By changing the parameter form from complete datasets to differential values, the system reduces transmission burden while preserving the ability to reconstruct original data at the receiver end
2Loss of information
If entire measurement datasets are transmitted and stored, then data availability is ensured, but storage requirements increase
Solution Approach 1:
The system extracts and stores only difference values instead of complete measurement datasets. By storing minimal differential data rather than full datasets, the patent significantly reduces storage requirements while maintaining data availability through reconstruction capability at the receiver
Solution Approach 2:
Instead of the conventional approach of storing complete datasets, the patent inverts the strategy by storing only the differences from reference values. This inverted storage approach reduces storage requirements while preserving data availability, as the receiver can reconstruct complete data by combining stored reference values with stored difference values
3Measurement precision
If reference values are updated frequently, then data accuracy is improved, but transmission overhead increases
Solution Approach 1:
The patent implements dynamic reference value updating based on predefined criteria such as threshold exceedances or time intervals. Rather than static or overly frequent updates, the system adaptively determines when reference value updates are necessary, balancing data accuracy requirements with transmission overhead minimization
Solution Approach 2:
The system employs periodic reference value updates based on time intervals or event triggers (such as when measurement data exceeds thresholds). This periodic action ensures data accuracy is maintained through timely updates while avoiding unnecessary transmissions that would increase overhead
Data Source
AI summary
Apparatuses and methods for transmitting and receiving data are disclosed, where an apparatus for transmitting data includes a calculator configured to calculate a difference value between a reference value and a measurement data of a battery, and a transmitter configured to transmit an initial value and the difference value.