Analog Power Monitoring for Accurate Hardware Power Mode Detection
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Solution Overview
Problem
Existing systems struggle to accurately determine the power mode of hardware components, which is crucial for deducing other properties such as security settings, leading to potential privacy and security breaches.
Innovation Solution
A system that monitors analog parameters like power consumption to infer the power mode of hardware components, comparing actual values with expected ranges to detect mismatches, and triggers appropriate responses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If digital monitoring methods are used to detect power mode, then the system is easier to implement, but the measurement precision is insufficient to accurately determine power mode
Solution Approach 1:
The patent replaces digital monitoring methods with analog monitoring methods. Specifically, it uses an analog-to-digital converter (ADC) to measure analog power consumption values from the hardware component, which provides continuous and precise measurement of power mode. This substitution of measurement approach (from digital to analog) resolves the contradiction by maintaining ease of implementation through standard converter components while achieving accurate power mode determination through continuous analog measurement.
2Measurement precision
If analog monitoring is implemented to accurately detect power mode, then measurement precision improves, but device complexity increases
Solution Approach 1:
The patent introduces an analog-to-digital converter (ADC) as an intermediary component that bridges the analog power consumption signal and the digital processing system. The ADC measures the analog power consumption value and converts it to a digital format that can be processed by the monitoring system. This intermediary approach enables accurate analog measurement while maintaining compatibility with digital systems, thus improving measurement precision without significantly increasing overall device complexity.
3Reliability
If power consumption monitoring is performed continuously, then reliability of power mode detection improves, but energy consumption increases
Solution Approach 1:
The patent implements periodic monitoring of power consumption rather than continuous monitoring. The system periodically measures the power consumption value using the ADC and compares it against expected ranges to determine the current power mode. This periodic approach maintains reliable power mode detection by taking measurements at appropriate intervals while significantly reducing the energy consumption associated with constant monitoring operations.
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
Enhances security and privacy by reliably detecting unauthorized power mode changes, preventing malicious activities, and ensuring components operate within expected settings.
Implementation Method 1
an analog property monitoring module (e.g., an analog current monitoring module (608)) to measure a power consumption value of the electrical component (200)
Data Source
AI summary
An example computing device comprises a memory storing software, and a processor to, identify an expected parameter value range of a plurality of expected parameter value ranges of a hardware component of the computing device, the expected parameter value range corresponding to a set operating mode of the hardware component; compare an analog parameter value of the hardware component to the identified expected parameter value range; and determine whether the analog parameter value is within or outside the expected parameter value range.