Hardware Power Control with Feedback for BMC Reliability
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Solution Overview
Problem
Current power control devices based on baseboard management controllers (BMC) and software lack a mechanism for users to confirm the power on/off state, leading to inefficiencies in identifying issues when the device malfunctions, due to software unreliability and limited structural capabilities.
Innovation Solution
A power control device comprising an input assembly with a switch, a calculating assembly, an output assembly, and a feedback assembly, which generates trigger signals, changes power states, and provides feedback signals to actuators, ensuring stable operation and confirmation of device status through hardware-based methods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If power control is implemented using BMC and software, then the control functionality is achieved, but the reliability deteriorates due to software failures and lack of mechanical feedback
Solution Approach 1:
The patent replaces the software-based power control system with a hardware-based system that uses mechanical components (switch, actuators) and electrical circuits to directly control power states. This substitution eliminates software-related failures and provides tangible mechanical feedback that users can physically verify, thereby improving reliability while maintaining acceptable system complexity.
Solution Approach 2:
The patent implements feedback mechanisms where sensors detect the actual power state and relay this information back to the control system and users. This feedback loop ensures that the system maintains accurate knowledge of its state and provides users with confirmation of power on/off conditions, resolving the reliability issue caused by lack of feedback in software-based systems.
2Ease of manufacture
If software-based power control is used, then control functionality is provided, but maintenance cost increases due to higher development and maintenance requirements
Solution Approach 1:
The patent employs relatively simple hardware components that can be easily manufactured and replaced if needed. These hardware-based power control elements are generally more cost-effective to produce and maintain compared to complex software systems, reducing both initial manufacturing costs and long-term maintenance expenses.
3Ease of operation
If single-direction data transmitting path is used in BMC-based system, then data flow is simplified, but the ability to confirm device state deteriorates due to lack of feedback path
Solution Approach 1:
The patent segments the data transmission paths into separate directional channels: one for control commands and another for feedback information. This segmentation allows users to receive confirmation of device states through dedicated feedback paths without complicating the overall system architecture, as each path remains relatively simple and focused on its specific function.
Data Source
AI summary
A power control device comprises the following elements. An input assembly has a switch and is electrically connected to a first actuator, and generates a trigger signal according to a state of the switch or a control signal inputted from the first actuator. A calculating assembly is electrically connected to the input assembly and outputs a first signal from a control output terminal and a second signal from a feedback output terminal when the calculating assembly receives the trigger signal. An output assembly is electrically connected to the control output terminal of the calculating assembly for receiving the first signal and changes a power-on/off state of a controlled device when a voltage level of the first signal changes. A feedback assembly is electrically connected to the feedback output terminal of the calculating assembly and outputs a feedback signal to the first actuator according to the second signal.