Wireless Access Point Search Device Memory Management
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Solution Overview
Problem
Devices with insufficient memory resources cannot store all search results for wireless access points, leading to the omission of access points with higher radio field intensity in dense environments.
Innovation Solution
A wireless access point search device and method that determines whether to store new access points based on their radio field intensity, prioritizing those with higher intensity when the storage capacity is reached, ensuring that access points satisfying specific conditions are not omitted.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If all search results are stored in memory, then complete search information is preserved, but memory capacity is exceeded in dense access point environments
Solution Approach 1:
The patent changes the parameter for selecting access points from simple SSID matching to a composite parameter that includes radio field intensity. By prioritizing access points with higher radio field intensity when memory is full, the system ensures that the most relevant access points are retained without exceeding memory capacity.
Solution Approach 2:
The patent applies different selection criteria to different access points based on their local characteristics. Access points with higher radio field intensity are prioritized for storage, while those with lower intensity are discarded when memory is full. This local quality differentiation resolves the contradiction between storing all results and memory limitations.
2Ease of operation
If access points are selected based on SSID only, then simple matching is achieved, but access points with higher radio field intensity may be omitted in dense environments
Solution Approach 1:
The patent introduces radio field intensity as an additional parameter for access point selection. Instead of relying solely on SSID matching, the system now considers both SSID and radio field intensity, ensuring that when multiple access points have the same SSID, the one with higher signal strength is prioritized for storage and selection.
Solution Approach 2:
The patent uses radio field intensity as an intermediary criterion to resolve conflicts when multiple access points have identical SSIDs. This intermediary parameter helps distinguish between access points that would otherwise be indistinguishable, improving the reliability of access point selection while maintaining the simplicity of SSID-based initial filtering.
Data Source
AI summary
A wireless access point search device improved in a manner of storing search results. A wireless LAN interface searches for a wireless access point. A result receiving section stores an access point information item on the wireless access point found by the wireless LAN interface. When the sum of the number of access point information items stored in the result receiving section and the number of new wireless access point items on respective new wireless access points found by the wireless LAN interface is larger than a predetermined value, a panel controller determines, whether or not to store a new access point information item on each new wireless access point in the result receiving section, based on radio field intensity of the new wireless access point.