Imaging Apparatus Power Control for Recording Media
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Solution Overview
Problem
Existing imaging apparatuses with attachable recording media face challenges in reducing power consumption, as they often fail to effectively turn off power to components when the media is not accessed for extended periods, leading to significant power wastage.
Innovation Solution
The proposed imaging apparatus includes a processor that controls power supply to the recording medium and communication host, turning off power when no access is made to the recording medium for a predetermined period, thereby reducing overall power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If power is continuously supplied to the recording medium and communication host, then data access operations can be performed without interruption, but power consumption increases significantly
Solution Approach 1:
The patent implements periodic power supply control by monitoring the last access time of the recording medium. When a predetermined period elapses without access, power is turned off. This periodic action allows the system to switch between power-on and power-off states, reducing overall power consumption while maintaining operational capability when needed.
Solution Approach 2:
The system uses feedback from the access timing information to control power supply. The processor monitors when the recording medium was last accessed and uses this feedback to determine whether to maintain power supply or turn it off. This feedback mechanism ensures power is supplied only when necessary, optimizing the balance between operational continuity and energy efficiency.
2Use of energy by moving object
If power is turned off when no access is detected for a predetermined period, then power consumption is reduced, but access response time increases
Solution Approach 1:
The system performs preliminary monitoring of access timing information continuously. By tracking the last access time in advance, the system can make informed power supply decisions without sudden disruptions. This preliminary action allows for smoother power state transitions and reduces unexpected delays in access operations.
3Duration of action of stationary object
If the predetermined period for power shutdown is set longer, then operational continuity is improved, but power consumption reduction is diminished
Solution Approach 1:
The system dynamically adjusts the power supply state based on the elapsed time parameter. By monitoring the time since last access and comparing it against the predetermined period threshold, the system optimizes the balance between operational continuity and energy savings. This parameter-based control allows flexible adaptation to different usage patterns.
Data Source
AI summary
An imaging apparatus, for capturing a subject image and recording image data on a recording medium, includes: a recording medium connector configured to attach the recording medium detachably; a communication host connected to the recording medium connector via a first communication bus, configured to access the recording medium via the first communication bus to write data to the recording medium or read data from the recording medium; and a processor configured to control power supply, wherein in a case where a period in which the communication host does not access the recording medium is equal to or longer than a predetermined period, the processor stops power supply to the recording medium and the recording medium connector, and stops power supply to the communication host.