Wireless Battery Management Channel Switching Against Interference
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Solution Overview
Problem
Existing wireless battery management systems face interference and data collisions due to shared communication channels, which can lead to degraded performance and quality of battery packs.
Innovation Solution
A wireless battery management system that employs a manager node and a channel operating method, where the system establishes a short-range wireless network using multiple channels and changes frequencies when interference is detected, ensuring communication through alternative channels to prevent collisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If multiple wireless battery management systems use the same communication channel, then device complexity is reduced, but channel interference and data collisions occur leading to degraded reliability
Solution Approach 1:
The system dynamically changes communication channel parameters (frequency, channel index) based on detected interference conditions. When another wireless battery management system is detected on the same channel, the system switches to a different channel to avoid interference, thereby maintaining reliability without requiring complex hardware modifications
Solution Approach 2:
The system implements a feedback mechanism where the master controller continuously monitors the communication channel for presence of other wireless battery management systems. Based on this feedback, the system automatically adjusts channel selection to prevent data collisions and interference, resolving the contradiction between simple configuration and reliable operation
2Area of stationary object
If wireless communication is implemented between master and slave controllers, then space efficiency is improved, but channel interference occurs when multiple systems operate adjacently
Solution Approach 1:
The system changes the communication channel parameter (frequency) dynamically based on the detection of adjacent wireless battery management systems. This allows wireless communication to maintain its space efficiency advantage while avoiding the harmful interference effect through adaptive parameter adjustment
Data Source
AI summary
A wireless battery management system, a manager node for the same, and a channel operating method, which operate a channel so as to stably support wireless communication in the wireless battery management system, are provided. The wireless battery management system includes a manager node and a monitor node. The manager node establishes a first network being a short-range wireless network by using at least one of a first channel and a second channel, and when a second network using the same communication channel and modulation method as a communication channel and a modulation method of the first network is detected, changing the first channel to a third channel and changing the second channel to a fourth channel.