Dynamic Base Station Frequency Allocation for Shelf Label Interference
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Solution Overview
Problem
The existing method for allocating frequencies to multiple base stations in electronic shelf label systems results in frequency use conflicts and strong signal interferences, reducing communication stability and success rates due to limited 2.4G ISM frequency band resources.
Innovation Solution
A dynamic frequency allocation method that involves obtaining a connectivity topological structure, weight degrees, and priority classifications of base stations to allocate frequencies based on priority types and weight degrees, allowing for dynamic re-allocation in response to changing task lists.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If fixed frequencies are manually allocated to multiple base stations, then frequency allocation is simple, but frequency use conflicts and strong signal interferences occur among base stations
Solution Approach 1:
The patent implements dynamic frequency allocation where base stations can switch between frequency channels based on real-time channel quality detection and neighboring base station information. The frequency allocation is no longer fixed but adapts dynamically to changing channel conditions, resolving the contradiction between allocation simplicity and communication stability.
Solution Approach 2:
The system establishes a feedback mechanism where base stations detect channel quality, share information with neighboring base stations, and adjust frequency allocation accordingly. This feedback loop enables the system to automatically resolve frequency conflicts and interference issues, improving communication stability without requiring complex manual allocation.
2Reliability
If frequency channels have interval protection and non-overlapping transmission time, then mutual interference is avoided, but system throughput is reduced
Solution Approach 1:
The patent enables base stations to dynamically switch between different frequency channels based on real-time channel quality. When a base station detects good channel conditions, it can use frequencies that would otherwise be protected by interval constraints, thereby increasing system throughput while maintaining communication success rate through adaptive frequency selection.
Solution Approach 2:
The system changes the frequency parameter dynamically based on channel quality conditions. Instead of maintaining fixed frequency intervals, the system adjusts frequency allocation parameters in real-time, allowing base stations to utilize a broader frequency range when conditions permit, thus increasing throughput while maintaining reliability.
3Ease of manufacture
If manual frequency allocation is used, then implementation is straightforward, but frequency resource utilization is inefficient
Solution Approach 1:
The patent implements a self-service mechanism where base stations autonomously detect channel quality, select appropriate frequency channels, and adjust their allocation without centralized control. This maintains implementation simplicity while dramatically improving frequency resource utilization through distributed intelligent decision-making.
Solution Approach 2:
The system uses feedback from channel quality detection to automatically optimize frequency allocation. Base stations monitor their channel conditions and adjust frequency usage accordingly, eliminating the need for complex manual allocation while maximizing frequency resource utilization through adaptive behavior.
Data Source
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AI summary
The present application provides a dynamic frequency allocation method for a base station, a shelf label system and a computer device. The method includes: obtaining a current connectivity topological structure of base stations; obtaining a current weight degree of each base station based on a frequency interval weight between every two base stations in the current connectivity topological structure; performing priority classification on all current base stations to obtain a current priority type of each base station; obtaining a current allocated frequency of each base station based on the current priority type of the base station, the current weight degree of the base station, the frequency interval weight and a current available frequency set. The present application solves the problem in the prior art that a method for allocating frequencies to a plurality of base stations in an electronic shelf label system has frequency use conflicts or strong signal interferences among the base stations, and maximizes the communication throughput of the base stations in limited frequency resources, thereby improving the stability and the data throughput capacity of the electronic price tag system.