Power-Monitoring Peripheral Disconnect Circuit for Inactive Devices
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Solution Overview
Problem
Web-based cameras and other peripheral devices pose security risks due to unsecured networking, lack of password protection, and easily guessable default login passwords, which can lead to unauthorized access and control, compromising secure information.
Innovation Solution
An automatic peripheral device disconnect apparatus that monitors power consumption and automatically disconnects devices when the power drops below a threshold, indicating inactivity, using a pass-through and current-sense circuit with a microcontroller to manage power and display status indicators.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If peripheral devices are continuously connected to computing devices, then device availability and ease of operation are improved, but security risks increase due to potential unauthorized access when devices are left connected and inactive
Solution Approach 1:
The system performs preliminary action by automatically detecting device inactivity through power consumption monitoring and preemptively disconnecting the peripheral device before security breaches can occur. The microcontroller continuously monitors power draw and triggers disconnection when the device remains inactive beyond a threshold period, preventing unauthorized access without requiring manual user intervention.
2Object-affected harmful factors
If automatic disconnection based on power consumption is implemented, then security is improved by disabling inactive devices, but device complexity increases due to additional monitoring circuitry and control logic
Solution Approach 1:
The system achieves universality by utilizing the existing power delivery infrastructure and power consumption characteristics of peripheral devices for security monitoring purposes. The microcontroller leverages standard USB power management protocols and existing current sensing capabilities, eliminating the need for separate dedicated monitoring hardware while achieving automated security control through multi-functional use of existing components.
3Measurement precision
If power consumption monitoring is continuously performed, then detection accuracy of inactive devices is improved, but energy consumption and processing requirements increase
Solution Approach 1:
The system applies dynamics by implementing adaptive monitoring thresholds and responsive disconnection timing. The microcontroller dynamically adjusts the inactivity threshold based on device-specific power consumption patterns and usage contexts, allowing for precise inactivity detection while minimizing continuous monitoring overhead. The system responds in real-time to power consumption changes, disconnecting devices when inactivity patterns are detected without requiring constant high-power monitoring.
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
Effectively mitigates security risks by ensuring peripheral devices are disabled when not in use, preventing unauthorized access and maintaining security in computing environments.
Implementation Method 1
first circuitry configured to detect power consumption by a peripheral device connected to the first input/output port
Data Source
AI summary
Embodiments provide for automatic disconnection of a peripheral device when a power consumption level of the peripheral device drops below a power consumption cutoff threshold, signifying that the peripheral device is no longer active. In embodiments, an example automatic peripheral device disconnect apparatus includes a first input/output connection, a second input/output connection, first circuitry configured to detect power consumption by a peripheral device connected to the first input/output connection, and second circuitry configured to disable power provided from a computing device connected to the second input/output connection to the peripheral device connected to the first input/output power when a detected power consumption by the peripheral device meets or drops below a cutoff threshold associated with the peripheral device.