Multi-Motherboard UPS Control for Complete Outage Shutdown
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Solution Overview
Problem
In information processing apparatuses with multiple motherboards, the uninterruptible power supply (UPS) sometimes stops supplying power when any of the motherboards shut down during a power outage, leading to incomplete shutdown of all motherboards.
Innovation Solution
The apparatus includes a first circuit to monitor motherboard operation, a second circuit to manage UPS power supply settings, a third circuit to detect power outages, and a fourth circuit to coordinate power supply from the UPS to all motherboards until they safely shut down.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the UPS stops supplying power when any motherboard shuts down during a power outage, then the shutdown process is simplified, but the reliability of complete shutdown for all motherboards deteriorates
Solution Approach 1:
The control circuit continuously monitors the operating status of each motherboard and provides feedback to determine when to stop UPS power supply. Only after all motherboards report shutdown status does the control circuit terminate UPS power supply, ensuring complete shutdown of all motherboards while maintaining automated control.
2Reliability
If the UPS continues supplying power to all motherboards until they all shut down, then the reliability of complete shutdown is improved, but the complexity of power management increases
Solution Approach 1:
A control circuit is introduced as an intermediary between the motherboards and the UPS power supply. This control circuit receives status signals from all motherboards, processes the information, and automatically controls the UPS power supply accordingly, eliminating the need for complex manual power management while ensuring reliable shutdown of all motherboards.
3Measurement precision
If manual monitoring of each motherboard status is implemented, then the precision of shutdown control is improved, but the ease of operation deteriorates
Solution Approach 1:
Each motherboard autonomously generates and transmits its own operating status signal to the control circuit. The system achieves precise monitoring of all motherboards without requiring external manual intervention, as each component self-reporting enables automated control decisions by the control circuit regarding UPS power supply.
Data Source
AI summary
An information processing apparatus connectable to a UPS, includes motherboards, a first circuit connected to the motherboards to receive first signals therefrom, each first signal indicating whether the corresponding motherboard is operating, a second circuit connected to the motherboards to receive second signals therefrom, each second signal indicating whether power is to be supplied from the UPS to the corresponding motherboard during a power outage, a third circuit for detecting a power outage, and a fourth circuit connected to the first through third circuits. In response to the outage, the fourth circuit supplies power from the UPS to the motherboards when the first and second circuits each receive from at least one motherboard, the first signal indicating that the corresponding motherboard is operating and the second signal indicating that power is to be supplied from the UPS to the corresponding motherboard during a power outage.