Protection Circuit for Idle-State Module Abnormality Detection
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Solution Overview
Problem
Existing technologies face challenges in effectively performing abnormality detection on modules within chips without disrupting their normal operation.
Innovation Solution
A protection circuit and method that includes a first detection control module to determine the current state of a protected module, a generation module to generate test input data during idle states, and a second detection control module to assess abnormality based on actual and expected test output data, allowing for intermittent abnormality detection without impacting normal operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If abnormality detection is performed on the protected module, then reliability is improved, but normal operation is disrupted
Solution Approach 1:
The patent implements periodic abnormality detection by activating the test mode only during idle periods of the protected module. The detection control circuit periodically switches between normal operation mode and test mode, performing abnormality detection at intervals when the module is not actively processing data, thus maintaining both reliability improvement and operational continuity.
Solution Approach 2:
The patent performs preliminary abnormality detection during idle periods before the module needs to resume normal operation. By conducting detection in advance during unavailable time slots, the system ensures that any abnormalities are identified before they could impact productivity, resolving the contradiction between detection and operational continuity.
2Measurement precision
If test mode is activated for abnormality detection, then detection accuracy is improved, but resource consumption increases
Solution Approach 1:
The system activates the resource-intensive test mode periodically during idle periods rather than continuously. This allows high-accuracy detection to be performed when power consumption constraints are less critical (during idle time), while maintaining low power consumption during active operation periods, thus balancing detection accuracy with energy usage.
Solution Approach 2:
The patent dynamically switches the protected module between normal operation mode and test mode based on system state. The detection control circuit adjusts the operational mode in real-time, activating high-power detection only when necessary during idle periods, thereby optimizing the balance between detection accuracy and power consumption.
3Reliability
If continuous monitoring is implemented, then reliability is improved, but device complexity increases
Solution Approach 1:
The detection control circuit is designed to perform multiple functions: it controls the switching between normal operation and test modes, generates test input data, receives and processes output data, and determines abnormality results. By making the detection control circuit multi-functional, the patent achieves comprehensive monitoring coverage without proportionally increasing device complexity.
Solution Approach 2:
The patent merges the detection control functionality with the existing protected module structure. The detection control circuit integrates with the module's existing data input and output pathways, combining monitoring functions with the module's operational infrastructure, thereby achieving continuous monitoring capability while minimizing additional complexity.
Data Source
AI summary
Disclosed are a protection circuit and method for protecting a protected module, a storage medium, and an electronic device. The protection circuit for a protected module includes: a first detection control module, configured for determining a current state of the protected module based on a transmission signal on a control signal bus between a real control signal source and the protected module; a generation module, configured for generating test input data in response to the current state being an idle state; and a second detection control module, configured for determining an abnormality detection result for the protected module based on actual test output data output by the protected module for the test input data and expected test output data corresponding to the test input data. The embodiments of the present disclosure can effectively achieve abnormality detection on the protected module without impacting normal operation of the protected module.