Wireless Display Beacon Scanning for Country Code Channel Compliance
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Solution Overview
Problem
Wireless communication devices in image display apparatuses may fail to comply with local regulations due to mismatched country code information, leading to inefficient use of wireless channels and transmission power.
Innovation Solution
The image display apparatus includes a wireless communication device that scans beacon frames, sets wireless channels and transmission power based on stored country code information, and adjusts settings based on extracted country code information from the frames, displaying mismatch messages if necessary, and performing channel changes to ensure compliance and efficient communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If wireless channel and transmission power are set based on stored country code information, then device complexity is reduced, but compliance with local regulations deteriorates when country code information is outdated or incorrect
Solution Approach 1:
The system performs preliminary action by automatically scanning for beacon frames and extracting country code information before establishing wireless communication. This preliminary detection ensures that the country code information is updated and accurate before use, resolving the contradiction between simple setup and regulatory compliance.
Solution Approach 2:
The system implements feedback by continuously monitoring the wireless environment for beacon frames and using this information to update the country code settings. This feedback mechanism ensures that the stored country code information remains current and compliant with local regulations without increasing user complexity.
2Ease of operation
If country code information is not updated, then ease of operation is maintained, but wireless channel efficiency deteriorates
Solution Approach 1:
The system performs self-service by automatically detecting and updating country code information through beacon frame scanning without requiring user intervention. This maintains ease of operation while improving wireless channel efficiency through accurate, up-to-date country code settings.
Solution Approach 2:
The system performs preliminary detection of beacon frames and extraction of country code information before initiating wireless communication. This preliminary action ensures optimal channel efficiency is achieved automatically, without burdening the user with manual configuration tasks.
3Reliability
If beacon frame scanning is performed continuously, then compliance with local regulations is improved, but energy consumption increases
Solution Approach 1:
The system implements periodic action by scanning for beacon frames at specific intervals rather than continuously. This periodic scanning maintains compliance with local regulations through regular updates while significantly reducing energy consumption compared to continuous monitoring.
Solution Approach 2:
The system performs partial action by scanning for beacon frames only when necessary (e.g., during initialization or when compliance verification is needed) rather than continuously. This approach maintains regulatory compliance while minimizing energy consumption by avoiding unnecessary scanning operations.
Data Source
AI summary
A wireless communication device and an image display apparatus including the same are disclosed. An image display according to an embodiment of the present disclosure comprises a display, a memory to store country code information, a signal processing device to output an image signal to the display, and a wireless communication device to perform wireless communication with an external device, wherein the wireless communication device is configured to scan a beacon frame, set wireless channel and wireless transmission power based on the country code information stored in the memory in response to a beacon frame being not received within a predetermined period, and in response to the beacon frame being received within the predetermined period, extract the country code information within the beacon frame and set wireless channel and wireless transmission power based on the extracted country code information. Accordingly, it is possible to efficiently perform wireless communication.