Wireless Network Card AP Detection Circuit Power Management
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Solution Overview
Problem
Existing solutions for detecting wireless access points (APs) are inefficient as they rely on activating the operating system, waste resources, fail to differentiate between legitimate and ambient RF signals, and cannot perform AP searches with security conditions, leading to unnecessary connections and battery consumption.
Innovation Solution
A wireless network communication card with an access point detection circuit that supplies power independently of the host device's power state, using a wireless antenna to detect APs and provide an indicator or sound output for detection, allowing for secure AP searches without activating the host device's OS.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Difficulty of detecting and measuring
If the operating system is activated to detect wireless access points, then AP detection capability is improved, but battery power consumption increases and resource efficiency deteriorates
Solution Approach 1:
The system is divided into two independent components: a specialized AP detection circuit that operates independently from the main host apparatus, and the host apparatus itself. The detection circuit can function in standby mode with minimal power consumption, while the full OS remains dormant. This segmentation allows AP detection without activating the entire system, resolving the contradiction between detection capability and power consumption.
Solution Approach 2:
A specialized AP detection circuit serves as an intermediary between the user and the host apparatus. This intermediary can detect APs and provide basic information without requiring the host OS to be active. It acts as a bridge that performs detection functions independently, reducing the need to activate the main system and thereby conserving battery power.
2Difficulty of detecting and measuring
If specialized AP detection units are used, then detection function is improved, but reliability deteriorates due to inability to differentiate legitimate signals from ambient RF radiation
Solution Approach 1:
The system combines multiple functions within the host apparatus that is activated only when needed. The host apparatus includes not only the OS but also the wireless communication interface and processing capabilities. This multi-functional system can perform sophisticated signal analysis, authentication, and differentiation between legitimate Wi-Fi signals and ambient RF radiation, thereby improving reliability while maintaining detection capability.
Solution Approach 2:
The system implements feedback mechanisms where the detection circuit communicates with the host apparatus to verify detected signals. The host apparatus can perform additional verification steps, such as analyzing signal characteristics, checking authentication credentials, and confirming legitimacy before establishing connections. This feedback loop improves reliability by filtering out false positives from ambient RF radiation.
3Difficulty of detecting and measuring
If specialized detection units are used, then detection capability is improved, but adaptability deteriorates due to different reception sensitivities between specialized units and notebook PCs
Solution Approach 1:
The system merges the specialized detection circuit with the host apparatus's existing wireless communication interface. The detection circuit uses the same antenna and radio frequency components as the notebook PC's wireless interface, ensuring consistent reception sensitivity. This merging eliminates the mismatch between specialized unit sensitivity and PC sensitivity, allowing seamless integration and consistent performance across different detection scenarios.
4Productivity
If AP detection is performed without security conditions, then detection speed is improved, but harmful factors increase due to connection to unauthorized APs
Solution Approach 1:
The system performs preliminary security verification before establishing connections. The host apparatus, when activated, checks authentication credentials, verifies AP authorization status, and validates security protocols before allowing connections. This preliminary action ensures that detection can proceed quickly while security risks are mitigated through pre-connection verification steps.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables efficient detection of wireless APs without activating the host device's OS, saving battery power and allowing secure AP searches, reducing testing time, and improving usability and serviceability.
Implementation Method 1
an access point detection circuit for detecting a wireless access point through a wireless antenna
Data Source
AI summary
A wireless network communication card usable with a host apparatus is disclosed. The wireless network communication card includes an access point detection circuit that detects a wireless access point through a wireless antenna. A power inlet to which power is supplied in response to an access point detection request from a user when the power of the host apparatus is suspended, the power inlet being connected to the access point detection circuit is included, as is an indicator coupled to said access point detection circuit that indicates a presence of an available wireless access point in response to a detection by said access point detection circuit.