Wireless Clock Update for ESL Synchronization After Relocation
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Solution Overview
Problem
Wireless communication devices, such as electronic shelf labels (ESLs), lose synchronization when moved to new locations, leading to resource-intensive onboarding procedures and spectral pollution, due to mismatched time schedules with synchronized access points.
Innovation Solution
Implement a clock update mechanism that synchronizes access points and ESLs with a planned time schedule change, allowing ESLs to update their time schedules without losing synchronization, using clock update commands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If ESLs use periodic advertisement trains for communication, then energy efficiency is improved, but synchronization is lost when ESL is moved
Solution Approach 1:
The access point performs preliminary actions by proactively detecting the ESL's new location and preemptively updating the ESL's time schedule before synchronization is lost. The system monitors for location changes and initiates resynchronization procedures in advance, preventing the harmful effect of desynchronization rather than reacting after it occurs.
Solution Approach 2:
The system implements feedback mechanisms where the access point continuously monitors the ESL's status and location, detects when the ESL has moved to a new location, and automatically initiates resynchronization procedures. This closed-loop feedback ensures that synchronization is maintained despite ESL movement, resolving the contradiction between energy efficiency and reliability.
2Reliability
If access points synchronize time schedules, then communication reliability is improved, but resource consumption increases during onboarding procedures
Solution Approach 1:
The access point performs self-service by autonomously detecting ESL location changes and initiating resynchronization procedures without requiring manual intervention or extensive onboarding procedures. The system automatically manages its own synchronization state, reducing the resource consumption that would otherwise be required for frequent manual onboarding operations.
3Reliability
If frequent onboarding procedures are performed, then synchronization is restored, but productivity decreases due to disruptions
Solution Approach 1:
The access point performs preliminary detection of ESL location changes and initiates resynchronization procedures before communication disruptions occur. By acting in advance rather than reacting after desynchronization is detected, the system maintains continuous communication and avoids productivity losses associated with frequent onboarding procedures.
Solution Approach 2:
The system maintains continuous synchronization by continuously monitoring ESL locations and proactively resynchronizing when movements are detected. This continuous approach eliminates interruptions in communication, ensuring that the useful action of data transmission remains uninterrupted unlike traditional reactive onboarding procedures.
Data Source
AI summary
Disclosed are systems, apparatuses, processes, and computer-readable media for wireless communications. In one illustrative example, a first network device for wireless communication can receive, from a second network device, a synchronization message comprising synchronization information. The first network device can determine clock information based on the synchronization information. The first network device can generate a clock update command based on the clock information. The first network device can further transmit the clock update command to one or more wireless communication devices associated with the first network device. The first network device can apply the clock information to a clock of the first network device such that the first network device is synchronized with the second network device.