Wireless Battery Monitoring Repeater Scheduling for Node Synchronization
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Solution Overview
Problem
Wireless battery management systems face communication interruptions between battery monitoring nodes and control circuitry, leading to synchronization issues and delays in battery management operations, which can compromise safety and compliance with standards.
Innovation Solution
Implementing an optimal scheduling mechanism for one-hop extension in wireless battery management systems, where repeater nodes forward downlink communications to noncommunicative nodes before processing, ensuring synchronization by specifying action times based on expected completion of transmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If wireless battery management systems use direct communication between control circuitry and battery monitoring nodes, then communication reliability is maintained, but system coverage is limited to one-hop distance
Solution Approach 1:
The patent introduces repeater nodes as intermediary devices that receive communications from control circuitry and forward them to distant battery monitoring nodes. This multi-hop architecture extends communication range beyond direct one-hop limitations while maintaining reliability through intermediate relay points that ensure proper message delivery and acknowledgment.
2Length of moving object
If repeater nodes are used to extend communication range, then system coverage is improved, but synchronization issues arise causing delays in battery management operations
Solution Approach 1:
The patent implements preliminary scheduling where the control circuitry calculates expected transmission completion times before initiating communications. Action times are predetermined and included in the communication messages themselves, allowing battery monitoring nodes to synchronize their operations in advance rather than waiting for actual message receipt, thus reducing synchronization delays.
Solution Approach 2:
The system employs feedback mechanisms where acknowledgments are sent back through the repeater node network to confirm message delivery. This feedback loop allows the control circuitry to track communication status and adjust scheduling decisions, ensuring that action times are set appropriately based on actual transmission conditions and node availability.
3Stability of the object's composition
If action times are set early in communication process, then synchronization is maintained, but flexibility in handling variable transmission durations is reduced
Solution Approach 1:
The patent creates a dynamic scheduling system where action times are not fixed but adaptively determined based on communication conditions. The control circuitry calculates action times considering current transmission durations, repeater node processing speeds, and network load conditions. This dynamic approach maintains synchronization stability while providing flexibility to handle variable transmission durations and changing system conditions.
Data Source
AI summary
Methods, apparatus, systems, and articles of manufacture are disclosed to improve one-hop extension in wireless battery management systems. An example apparatus is to cause transmission of an instruction to a first battery monitoring node (BMN) of a vehicle, the first BMN in communication with the apparatus, the instruction to cause the first BMN to operate as a repeater for a second BMN of the vehicle, the second BMN noncommunicative with the apparatus. The example apparatus is to process an acknowledgement from the first BMN indicating that the first BMN has configured to operate as the repeater. Additionally, the example apparatus is to cause transmission of a communication to at least the first BMN indicating a time at which at least the first BMN is to perform a first action associated with a first battery and the second BMN is to perform a second action associated with a second battery.