Signal Authenticated Activation for Mesh Networks
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Solution Overview
Problem
In mesh networks, particularly with nanotechnology devices, there is a challenge in efficiently activating network interfaces without consuming excessive power, especially when multiple devices are present in a small area, and ensuring secure activation to prevent malicious activation.
Innovation Solution
A broadcast activation mechanism using a modulated RFID signal encodes authentication patterns, allowing only intended devices to activate their network interfaces by matching the encoded ID, thereby reducing power consumption and preventing unauthorized activation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If network interfaces are continuously active to ensure immediate communication capability, then communication responsiveness is improved, but power consumption increases
Solution Approach 1:
The patent implements periodic wake-up cycles where network interfaces alternate between sleep and active states. Devices wake up at predetermined intervals to check for messages, then return to sleep mode. This periodic operation maintains communication capability while dramatically reducing average power consumption compared to continuous operation.
Solution Approach 2:
The system performs preliminary actions by broadcasting wake-up signals before actual data transmission is needed. These advance notifications allow receiving devices to activate their network interfaces in time to capture incoming messages, ensuring communication responsiveness without requiring continuous interface operation.
2Productivity
If broadcast signals are used to activate multiple devices simultaneously, then activation efficiency is improved, but security against malicious activation deteriorates
Solution Approach 1:
The patent applies local quality by assigning unique identification codes to specific devices or device groups. Broadcast wake-up signals contain these localized identifiers, allowing only intended devices to activate. This selective activation maintains efficiency while preventing unauthorized devices from responding to broadcasts.
Solution Approach 2:
The system implements feedback mechanisms where devices verify the authenticity of wake-up signals before activation. Received broadcast signals are checked against expected patterns or authentication credentials. This feedback loop ensures that only legitimate activation requests succeed, maintaining security while preserving broadcast efficiency.
3Use of energy by moving object
If devices remain in sleep mode to conserve power, then power efficiency is improved, but ability to receive activation signals deteriorates
Solution Approach 1:
The patent segments the network interface functionality into multiple operational modes: deep sleep mode for maximum power saving, light sleep mode for receiving wake-up signals, and full active mode for data transmission. This segmentation allows devices to maintain minimal signal reception capability while in low-power states, enabling them to wake up in response to activation signals without requiring full interface operation continuously.
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
This approach enhances power efficiency and security by ensuring only intended devices are activated, reducing unnecessary power usage and minimizing the risk of malicious activation in mesh networks.
Implementation Method 1
activating an RFID interface in response to a first pulse of a series of electromagnetic pulses of an RFID broadcast signal
Implementation Method 2
A broadcast activation mechanism using a modulated RFID signal encodes authentication patterns
Data Source
AI summary
A signal is received. The signal includes an identification value. The value is compared to an assigned identification value. Responsive to the identification value matching the assigned identification value, a processing device transitions a network interface to an active state.