Battery Monitoring Mesh Path Selection for Balanced Module Charge
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Solution Overview
Problem
In battery monitoring systems, the formation of mesh networks for information transmission between battery modules and monitoring units often leads to biased charge distribution among battery modules due to unequal communication path usage, resulting in uneven electricity consumption.
Innovation Solution
A battery monitoring device and method that employs charged state acquisition units to acquire and form information transmission paths based on the charge states of battery modules, using a path selection unit to choose paths that balance charge distribution and adjust communication frequency accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a mesh network is formed for information transmission between battery modules and monitoring unit, then communication reliability is improved, but charge distribution bias occurs among battery modules
Solution Approach 1:
The system dynamically selects information transmission paths based on real-time charged states of battery modules. The path selection unit adjusts which charged state acquisition units form transmission paths to the monitoring unit, making the network topology adaptive rather than static. This dynamic adjustment ensures that battery modules with lower charge amounts are preferentially selected for transmission, balancing their electricity consumption and preventing charge distribution bias while maintaining communication reliability through the mesh network structure.
Solution Approach 2:
The system changes the parameter of path selection based on the charged state parameter of battery modules. By using the charged state as a selection criterion, the system modifies which transmission paths are active in the mesh network. This parameter-based selection ensures that battery modules with different charge levels are distributed more evenly across transmission paths, preventing the concentration of communication load on specific modules and thereby maintaining both communication reliability and charge distribution uniformity.
2Productivity
If information is transmitted via most favorable communication paths in mesh network, then communication efficiency is improved, but electricity consumption becomes uneven among battery modules
Solution Approach 1:
The system changes the selection parameter from purely communication quality metrics to include charged state of battery modules. The path selection unit uses charged state as a key parameter to determine which acquisition units form transmission paths. This ensures that battery modules with lower charge amounts are selected more frequently for transmission, distributing the communication energy load more evenly across all modules while still maintaining efficient communication through the mesh network.
Solution Approach 2:
The system implements feedback by continuously monitoring the charged states of battery modules and using this information to adjust path selection. The charged state acquisition units provide real-time feedback on their charge levels, and the path selection unit uses this feedback to dynamically adjust which units participate in information transmission. This feedback mechanism ensures that electricity consumption is distributed more evenly while maintaining communication efficiency through optimal path selection.
3Device complexity
If charged state acquisition units form information transmission paths without considering charge amounts, then device complexity is reduced, but bias in charge amounts occurs among battery modules
Solution Approach 1:
The system introduces charged state as an additional parameter for path selection, transforming the selection criterion from a simple topology-based approach to a state-aware approach. The path selection unit uses the charged state parameter to determine which acquisition units form transmission paths, ensuring that battery modules with lower charge amounts are preferentially selected. This parameter-based selection maintains relatively simple device architecture while effectively preventing charge amount bias through intelligent path selection.
Data Source
AI summary
A battery monitoring device includes: a plurality of charged state acquisition units that are provided with respective ones of a plurality of battery modules, acquire charging information of the plurality of battery modules, and are capable of forming an information transmission path for the charging information through radio communication therebetween; a monitoring unit that monitors the plurality of battery modules on the basis of the charging information input via the information transmission path; and a path selection unit that selects a charged state acquisition unit forming the information transmission path to the monitoring unit for each of the plurality of charged state acquisition units capable of forming the information transmission paths on the basis of the charging information.