Proximity Detection System for Secure User Interface Access
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Solution Overview
Problem
Certain electrical equipment with user interfaces is often difficult to access, making it inconvenient for operators to use, and existing proximity detection systems are inadequate for distinguishing between transient user devices and permanent equipment.
Innovation Solution
A proximity detection system using an antenna and controller to detect the presence of a user device, determining its proximity and identity, and activating the user interface only for authorized, transient devices within a threshold distance and time, while ignoring permanent equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the user interface is kept active to ensure immediate access, then ease of operation is improved, but energy consumption increases
Solution Approach 1:
The system performs preliminary detection of user presence via antenna signal detection before activating the user interface. The controller monitors for devices within threshold distance and activates the interface only when a user is detected, rather than keeping it constantly active. This preliminary action resolves the contradiction by preparing the system to provide immediate access only when needed, eliminating unnecessary energy consumption during periods of non-use.
2Ease of operation
If the user interface is activated for all detected devices, then ease of operation is improved, but security deteriorates
Solution Approach 1:
The system applies different access characteristics to different devices based on their identity. The controller determines whether each detected device is authorized by comparing its identifier against a list of authorized devices. This local differentiation resolves the contradiction by providing easy access to authorized users while maintaining security against unauthorized access attempts, rather than applying a uniform access policy to all devices.
3Ease of operation
If proximity detection is used to activate the user interface, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The system replaces manual mechanical activation (physically accessing and turning on the interface) with automatic electromagnetic detection. The antenna detects electromagnetic signals from user devices to determine proximity, and the controller automatically activates the interface based on this detection. This substitution resolves the contradiction by eliminating the need for manual intervention while keeping the added complexity minimal through the use of standard wireless detection components.
4Reliability
If the system distinguishes between known and unknown devices, then reliability is improved, but measurement precision requirements increase
Solution Approach 1:
The system performs preliminary classification of devices as either known or unknown based on whether their identifiers match the authorized list. This preliminary action occurs before final access decisions are made. The threshold for detection is set to reliably distinguish between authorized and unauthorized devices, and this classification is performed in advance to guide subsequent access control actions, resolving the contradiction between reliability and precision requirements.
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 convenient access to user interfaces by powering them up only when an authorized user is detected, reducing unnecessary power consumption and ensuring secure access.
Implementation Method 1
an antenna configured to receive a signal provided by the device
Data Source
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AI summary
This disclosure generally relates to a proximity detection system comprising an antenna configured to receive a signal provided by a device; a user interface; and at least one controller configured to determine, based on the signal, whether the device is known, generate, responsive to determining that the device is not known, one or more instructions instructing the proximity detection system to activate the user interface, and provide the one or more instructions to the proximity detection system.