Wireless Battery Monitoring Node Repeater Scheduling for 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 potential incorrect command execution due to one-hop techniques, which can result in non-compliance with safety standards and inefficient battery management.
Innovation Solution
Implementing an optimal scheduling method that instructs repeater battery circuitry to forward downlink communications to noncommunicative nodes before processing, specifying the time for action, thereby preserving synchronization and ensuring timely data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If one-hop extension technique is used to maintain communication with noncommunicative nodes, then communication coverage is improved, but synchronization accuracy deteriorates leading to potential incorrect command execution
Solution Approach 1:
The system performs preliminary actions by scheduling and transmitting commands to all nodes (including noncommunicative ones) before the actual execution time. The command scheduler determines a time for action that is earlier than the actual execution time, allowing noncommunicative nodes to receive and process commands in advance through the mesh network, thus maintaining synchronization without requiring real-time communication.
Solution Approach 2:
The patent introduces intermediary communication nodes (communicative nodes) that act as mediators to forward commands and data between the control circuitry and noncommunicative nodes. This mesh network approach allows commands to reach noncommunicative nodes through multiple hops via intermediate nodes, preserving communication coverage while maintaining synchronization through pre-scheduled timing.
2Reliability
If communication is maintained with noncommunicative nodes through repeater technique, then system reliability is improved, but communication delay increases
Solution Approach 1:
The command scheduler pre-determines execution times for all nodes before actual command execution. By scheduling commands in advance and accounting for potential communication delays through the mesh network, the system ensures that all nodes (including noncommunicative ones) execute commands simultaneously without waiting for real-time confirmation, thus reducing effective communication delay while maintaining reliability.
3Manufacturing precision
If optimal scheduling is implemented to preserve synchronization, then command execution accuracy is improved, but system complexity increases
Solution Approach 1:
The command scheduler performs multiple functions: it determines execution times for all nodes, schedules commands for both communicative and noncommunicative nodes, and coordinates the mesh network communication. This universal scheduler consolidates what would otherwise require separate timing mechanisms for different node types, reducing overall system complexity while maintaining high command execution accuracy through centralized coordination.
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.