Peripheral Control Bus Access Management for Power Reduction
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Solution Overview
Problem
The increasing sophistication of information processing devices leads to higher power consumption and longer data download times, necessitating a technology to reduce power consumption for controlling peripheral equipment.
Innovation Solution
A peripheral equipment control device with a peripheral equipment control processor and a bus that connects to a main processor, allowing the peripheral equipment control processor to take over software processing when the main processor is inactive, thereby reducing power consumption and preventing unauthorized access to peripheral equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the main processor controls peripheral equipment operations, then processing capability is improved, but power consumption increases
Solution Approach 1:
The patent divides the processor functionality into two separate components: a main processor for high-performance computing tasks and a peripheral equipment control processor for managing peripheral devices. This segmentation allows the system to use only the necessary processor for each task, reducing overall power consumption while maintaining processing capability when needed.
Solution Approach 2:
The peripheral equipment control processor is designed to autonomously control peripheral equipment without requiring the main processor to be active. This self-service capability allows the system to handle peripheral control tasks independently, eliminating the need for the power-intensive main processor to remain operational during peripheral operations.
2Speed
If the main processor remains active to control peripheral equipment, then response speed is improved, but heat generation increases
Solution Approach 1:
By separating peripheral control functions into a dedicated control processor, the system achieves rapid response to peripheral events without requiring the main processor to remain active. The control processor handles peripheral control tasks independently, providing fast response while minimizing heat generation from the main processor.
3Use of energy by moving object
If the peripheral equipment control processor can access peripheral equipment independently, then power consumption is reduced, but security risks increase
Solution Approach 1:
The bus system incorporates an access control mechanism that acts as an intermediary between the peripheral equipment control processor and the peripheral equipment. This mediator enforces security policies by controlling which processors can access which equipment under what conditions, allowing independent control while maintaining security boundaries.
Solution Approach 2:
The system dynamically changes access parameters (permission states) on the bus based on the operational state of the main processor. When the main processor is active, it can grant or revoke access permissions for the control processor, allowing flexible security management that adapts to system state while enabling power-efficient operation.
Data Source
AI summary
Disclosed herein is a peripheral equipment control device controlling data flow via a peripheral equipment, the peripheral equipment control device including: a peripheral equipment control processor that can control an operation of one or more peripheral equipment; and a bus adapted to connect the peripheral equipment control processor, a main processor, and the one or more peripheral equipment, the main processor being provided outside the peripheral equipment control device to control the operation of the one or more peripheral equipment, in which the bus stores addresses that are referenced by the main processor and the peripheral equipment control processor to access the one or more peripheral equipment, and the bus prohibits access to the peripheral equipment by the peripheral equipment control processor while the main processor is active.