Multi-Primary Node Scheduling for Redundant Battery Data Links
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Solution Overview
Problem
Existing wireless communication systems in battery management systems suffer from data losses due to interference, physical obstructions, and multipath propagation, leading to inefficiencies and reliance on the integrity of primary devices, which are inadequate when they malfunction.
Innovation Solution
Implementing a concurrent superframe protocol where multiple superframes occur simultaneously, allowing for redundant data transmission on different frequencies to increase robustness and reduce the risk of packet loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single primary device is used for data transmission in battery management systems, then the system structure is simple, but data loss occurs due to interference, physical obstructions, and multipath propagation
Solution Approach 1:
The patent introduces multiple primary devices with different spatial positions and transmission characteristics. Each primary device provides locally optimized data transmission paths, ensuring that at least one device can successfully transmit data despite interference or obstructions affecting other devices. This local diversity enhances overall system reliability without requiring a completely complex rearchitecture.
Solution Approach 2:
The patent implements redundant data transmission mechanisms where data is transmitted through multiple primary devices simultaneously or sequentially. This beforehand cushioning ensures that if one transmission path fails due to interference or obstructions, alternative paths are already prepared and can take over, preventing data loss before it occurs.
2Reliability
If multiple primary devices are implemented for redundant data transmission, then system robustness improves, but the complexity of managing multiple devices and their coordination increases
Solution Approach 1:
The patent merges the functions of multiple primary devices into a coordinated system where they work together as a unified transmission network. The secondary device receives data from multiple primary devices and processes them according to established protocols, combining their individual capabilities into a robust collective system that manages complexity through standardized integration.
Solution Approach 2:
The patent designs the multiple primary devices with universal communication protocols and standardized interfaces, allowing them to perform multiple functions including data transmission, error detection, and coordinated fallback operations. This multi-functionality reduces the need for device-specific management logic and simplifies coordination.
3Reliability
If data is transmitted on a single frequency, then the transmission process is simple, but data loss occurs due to frequency-specific interference and multipath propagation
Solution Approach 1:
The patent extends the transmission dimension from a single frequency to multiple frequencies simultaneously. By transmitting data across different frequency bands, the system exploits the frequency dimension to avoid frequency-specific interference and multipath propagation effects that affect individual frequencies, thereby improving data transmission integrity.
Solution Approach 2:
The patent changes the transmission parameter from a fixed single frequency to multiple variable frequencies. The system dynamically selects and switches between different frequency bands based on interference conditions, allowing it to adapt to changing environmental conditions and maintain reliable data transmission despite frequency-specific challenges.
Data Source
AI summary
A device comprises a transceiver that can wirelessly transmit and receive data, and a processor coupled to the transceiver. The processor can receive, from the transceiver and in a first time slot, first data transmitted by a first primary device; receive, from the transceiver and in a second time slot following the first time slot, second data transmitted by a second primary device; provide, to the transceiver and in a third time slot following the second time slot, third data to be transmitted on a first frequency to the first primary device, the third data including a battery cell status; and provide, to the transceiver in a fourth time slot following the second time slot, the third data to be transmitted to the second primary device, the transceiver configured to transmit the third data to the second primary device on a second frequency that is different than the first frequency.