Power Failure Monitoring Logic for Early Abnormal Power-On Detection
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Solution Overview
Problem
Existing power failure monitoring systems in servers fail to accurately reflect abnormal power-on situations, leading to insufficient monitoring accuracy and prolonged troubleshooting times due to the inability to detect power failures that occur before the counter reaches its preset value.
Innovation Solution
A power failure monitoring device and method that utilize a programmable logic device to send a power supply enable signal, start a counter, and analyze the power supply status indication signal for falling edges before the counter reaches its preset value, allowing for the detection of abnormal power supply status changes and generation of precise logs for fault location.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the existing power failure monitoring method is used, then the system can detect power-off failures, but it cannot accurately detect abnormal power-on situations occurring before the counter reaches its preset value
Solution Approach 1:
The patent applies preliminary action by detecting power supply status changes before the counter reaches its preset value. The monitoring device checks for falling edges of the power supply status indication signal during the counter counting process, enabling detection of abnormal power-on situations that occur before the predetermined time period elapses, thus capturing power failure information that would otherwise be missed.
Solution Approach 2:
The patent implements feedback by continuously monitoring the power supply status indication signal and comparing it against expected behavior. When a falling edge is detected during the counter counting process, the system generates a power failure log entry, providing feedback about the abnormal power supply status change and enabling accurate recording of the power failure event.
2Device complexity
If the counter-based monitoring method is used, then the system can operate with simple logic, but it fails to detect power failures occurring within the counter timeout period
Solution Approach 1:
The patent applies preliminary action by checking for power supply status changes during the counter counting process, before the predetermined time period elapses. This allows the system to detect abnormal power-on situations early, improving monitoring reliability without requiring complex additional hardware or extending the timeout period.
Solution Approach 2:
The patent applies partial action by monitoring only the specific condition of falling edges during the counter counting process, rather than continuously monitoring all power supply states. This selective monitoring approach maintains simple system logic while reliably detecting the specific power failure condition of interest.
Data Source
AI summary
A power failure monitoring device includes an electronic device and a console; the electronic device includes a main board; the console is coupled to the main board and adapted to obtain power failure information in the electronic device, and then analyze a power supply condition of the electronic device according to the obtained power failure information.