Electronic Shelf Label Network Timing Adjustment for Interference Avoidance
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Solution Overview
Problem
Synchronous networks in electronic shelf label systems experience mutual interference due to time drifts or initial establishment issues, leading to reduced synchronization accuracy and stability.
Innovation Solution
A method of dynamically adjusting timing between adjacent networks by constructing an interference timing relationship diagram based on interference scanning results, determining timing adjustment directions and values, and generating adjustment tasks to synchronize base stations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If base stations use fixed timing sequences in synchronous networks, then initial network establishment is simplified, but time drift causes mutual interference between adjacent networks over time
Solution Approach 1:
The patent implements dynamic timing adjustment by having base stations continuously scan for interfering signals and automatically adjust their timing sequences based on detected interference. The master base station coordinates timing adjustments across the network, allowing the system to adapt to time drift dynamically rather than relying on fixed timing sequences, thereby resolving the contradiction between initial setup simplicity and long-term synchronization stability
Solution Approach 2:
The patent establishes a feedback mechanism where base stations continuously scan for interfering signals from adjacent networks and report timing deviation information to the master base station. The master base station then coordinates timing adjustments based on this feedback, creating a closed-loop control system that maintains synchronization stability over time while preserving the simplicity of initial network establishment
2Measurement precision
If base stations continuously adjust timing to avoid interference, then synchronization accuracy improves, but system complexity increases
Solution Approach 1:
The patent introduces a master base station as an intermediary that coordinates timing adjustments across the network. Instead of each base station independently and complexly adjusting its timing, the master base station receives interference information, calculates appropriate timing adjustments, and distributes adjustment instructions to secondary base stations, thereby simplifying the overall system while maintaining high synchronization accuracy
Solution Approach 2:
The patent enables base stations to perform self-service timing adjustment by automatically scanning for interfering signals and reporting timing deviations without manual intervention. The system uses automated interference detection and reporting mechanisms that reduce operational complexity while achieving precise synchronization through continuous self-adjustment based on detected interference patterns
3Ease of operation
If base stations use predetermined timing sequences, then device operation is simple, but timing overlaps cause signal interference between networks
Solution Approach 1:
The patent transitions from static predetermined timing sequences to dynamic timing adjustment where base stations continuously adapt their timing based on detected interference from adjacent networks. This dynamic approach maintains operational simplicity through automated adjustment while eliminating signal interference caused by fixed timing overlaps
Solution Approach 2:
The patent implements a feedback mechanism where base stations scan for interfering signals and report timing deviations to the master base station, which then coordinates timing adjustments. This feedback-driven approach maintains ease of operation through automation while effectively preventing signal interference by continuously adapting timing sequences based on actual interference conditions
Data Source
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AI summary
This disclosure provides a method of dynamically adjusting timing between adjacent networks in a synchronous network and an electronic shelf label system. The method includes: determining, by a server, a timing adjustment direction and a timing adjustment value of a current network based on an interference timing relationship diagram; generating, by the server, a corresponding adjustment task form the timing adjustment direction and the timing adjustment value of the current network, and sending the adjustment task to a master base station in the current network in the processing of each of the current networks, such that the master base station and a secondary base station dynamically adjust timing based on the adjustment task. This disclosure solves the problem of mutual interference between synchronous networks of adjacent stores or between different networks of the same store as time drifts in the prior art, achieves an objective of mutual avoidance between the networks and improves the communication stability of the synchronous networks by constructing the interference timing relationship diagram between the synchronous networks and dynamically adjusting network timing based on the interference timing relationship diagram.