Multi-band Communication System Dynamic Frequency Switching
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Solution Overview
Problem
Conventional battery management systems face difficulties in maintaining a good communication state between intermediate and terminal management devices when the communication condition using a specific frequency band deteriorates, leading to reduced communication accuracy and reliability.
Innovation Solution
A communication system that employs a multi-band communication approach, where the management device and terminal devices use multiple frequency bands (e.g., 5 GHz and 2.4 GHz) and dynamically switch between them based on reception intensity to maintain optimal communication, with the management device updating the used frequency band for each terminal device to ensure high reception intensity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single frequency band is used for wireless communication between management devices, then the communication system is simple to implement, but the communication reliability deteriorates when the communication condition of that frequency band deteriorates
Solution Approach 1:
The patent changes the frequency band parameter dynamically based on communication conditions. The management device switches between first and second frequency bands depending on the reception intensity of communication signals, thereby adapting to different communication environments and maintaining reliable communication even when one frequency band experiences deterioration.
Solution Approach 2:
The patent implements dynamic frequency band selection where the communication system transitions from a static single-frequency approach to a dynamic multi-frequency approach. The management device continuously monitors communication conditions and switches frequency bands in real-time, making the system adaptable to changing environmental conditions.
2Reliability
If multiple frequency bands are used for communication, then the communication reliability improves when one band deteriorates, but the device complexity increases
Solution Approach 1:
The management device is designed with multi-functionality to perform wireless communication using multiple frequency bands. It can selectively use either the first or second frequency band based on communication conditions, making the device versatile and capable of maintaining reliable communication across different environments without requiring separate dedicated devices for each frequency band.
3Measurement precision
If the management device continuously monitors communication conditions, then the frequency band switching accuracy improves, but the energy consumption increases
Solution Approach 1:
The management device implements a feedback mechanism where it monitors the reception intensity of communication signals from terminal devices and uses this information to determine whether to switch frequency bands. This feedback-based approach ensures accurate decision-making for frequency band selection while allowing the device to return to idle state after switching, thereby balancing measurement precision with energy conservation.
Data Source
AI summary
A communication system includes at least one terminal device for acquiring at least information about a battery; and at least one management device. The management device communicates with the terminal device. One of the management device and the terminal device includes a multi-band communication device configured to perform communication using plural, different frequency bands. The other of the management device and the terminal device includes a specific communication device configured to perform communication using at least one frequency band among the plural, different frequency bands.