Comparison-Result Communication for Battery Diagnostic Data
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Solution Overview
Problem
Existing device communication systems in battery management systems often require transferring full data sets, which can be inefficient and consume excessive bandwidth, especially in daisy chain configurations where multiple devices need to communicate diagnostic information.
Innovation Solution
Devices determine a comparison result value based on a comparison with a reference value, allowing them to refrain from sending full data sets and instead send only the comparison result or differences, thereby reducing communication bandwidth and improving efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If full data sets are transferred in device communication, then complete diagnostic information is available, but communication bandwidth consumption increases
Solution Approach 1:
The patent extracts only the essential diagnostic information (comparison result values) from the full data sets. Devices compare their data with reference values and transmit only the comparison outcomes, thereby separating the necessary diagnostic information from the complete data sets that would otherwise be transmitted.
Solution Approach 2:
The patent changes the parameter being transmitted from complete data sets to comparison result values. By transforming the communication content from raw data to processed comparison outcomes, the system reduces the quantity of transmitted information while preserving diagnostic capability.
2Reliability
If full data sets are transferred, then accurate device status is monitored, but current consumption increases
Solution Approach 1:
The patent extracts only the essential diagnostic information (comparison result values) from the full data sets. Devices compare their data with reference values and transmit only the comparison outcomes, thereby separating the necessary diagnostic information from the complete data sets that would otherwise be transmitted.
Solution Approach 2:
The patent applies partial action by transmitting only the necessary portion of device data (comparison results) rather than complete data sets. This partial transmission approach maintains monitoring accuracy for critical parameters while reducing overall current consumption.
3Quantity of substance
If comparison result values are used instead of full data sets, then communication bandwidth is reduced, but data interpretation complexity increases
Solution Approach 1:
The patent applies preliminary action by performing data comparison and processing at the device level before transmission. Devices pre-calculate comparison result values using stored reference values, so that when data is transmitted, it is already processed and ready for interpretation, reducing the complexity at the controller level.
Solution Approach 2:
The comparison result value acts as an intermediary between the device data and the controller. This intermediate representation simplifies the interpretation process at the controller level, as it only needs to process standardized comparison outcomes rather than raw device data.
Data Source
AI summary
A device is configured to receive, from a controller, an instruction requesting data for the device and determine a comparison result value based on a comparison of the data for the device and a reference value. The device is further configured to determine whether to respond to the instruction based on the comparison result value and, in response to a determination to respond to the instruction, output, to the controller, the comparison result value, wherein, to output the comparison result value, the device is configured to refrain from outputting the data for the device.