UWB Communication Security with Battery-Aware Detection Suspension
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Solution Overview
Problem
The use of ultra-wide band (UWB) radio waves for distance measurement in unauthorized communication establishment prevention systems consumes significant power, leading to battery depletion in terminals, which prevents authentication communication and affects user convenience.
Innovation Solution
An unauthorized communication establishment prevention system that includes a measurement unit, process execution unit, monitoring unit, and suspension unit, which suspends the unauthorized communication detection function when the terminal's battery level is low, allowing for a second authentication method that requires user operation, thereby conserving power and maintaining user convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If UWB radio waves are used for distance measurement in unauthorized communication establishment prevention, then unauthorized communication can be detected and prevented, but the terminal's battery is depleted quickly due to high power consumption
Solution Approach 1:
The patent applies dynamics by making the unauthorized communication detection function adjustable rather than static. The system dynamically switches between enabled and suspended states based on battery level conditions, allowing the function to adapt its operation to current power availability while maintaining security when possible and conserving power when necessary
Solution Approach 2:
The patent changes the operational parameter of the detection function based on battery level. When battery level drops below a threshold, the system changes the function's state from active to suspended, effectively using parameter change (power consumption level) to resolve the contradiction between security reliability and energy usage
2Use of energy by moving object
If the unauthorized communication detection function is suspended to conserve battery power, then battery depletion is prevented, but authentication communication cannot be established when the terminal is not operated
Solution Approach 1:
The patent introduces a battery level monitoring mechanism as an intermediary that mediates between the detection function and the authentication process. This intermediary monitors power levels and intelligently controls when to suspend the function, ensuring authentication convenience is maintained when possible while conserving power when necessary, thus resolving the contradiction between power conservation and ease of operation
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
The system effectively prevents unauthorized communication establishment without draining the terminal's battery, ensuring the communication peer can still be actuated through alternative authentication methods, thus minimizing adverse impacts on user convenience.
Implementation Method 1
a measurement value corresponding to a distance between the terminal and the communication peer is obtained
Data Source
AI summary
An unauthorized communication establishment prevention system includes a measurement unit arranged in at least one of a terminal and a communication peer. The measurement unit implements an unauthorized communication detection function and obtains a measurement value corresponding to a distance between the terminal and the communication peer. The system further includes a process execution unit that controls initiation, based on a determination result of whether the measurement value is appropriate, of an authentication performed through wireless communication established between the terminal and the communication peer even when the terminal is not operated. The system further includes a monitoring unit that monitors a battery level of the terminal and a suspension unit that suspends the unauthorized communication detection function when the battery level of the terminal is less than a specified amount that is not a battery depletion level.