Human Detection Sensor Power Mode Control
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Solution Overview
Problem
Conventional human detection sensor systems in information processing apparatuses face challenges in distinguishing between actual user presence and misdetection, leading to unnecessary power consumption and potential usability issues when transitioning to power-saving mode.
Innovation Solution
An information processing apparatus with a human detection sensor that shifts between normal and power-saving modes based on detection results, using a determination unit to assess user input after a predetermined time period to avoid unwanted mode transitions and minimize power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the power-saving mode is automatically transited into after a fixed time period without input, then unnecessary power consumption is reduced, but the apparatus may transition to power-saving mode when the user intends to input
Solution Approach 1:
The system performs preliminary detection of user presence before allowing automatic transition to power-saving mode. The human detection sensor detects whether a user is present in the vicinity, and this detection result is used to preemptively prevent automatic mode transition when a user is detected, even if no input is received within the fixed time period.
2Ease of operation
If the apparatus remains in normal mode when a person is detected, then usability is maintained, but power is consumed unnecessarily when it is a misdetection
Solution Approach 1:
The system introduces an intermediary verification mechanism using a human detection sensor that specifically detects users (as opposed to general motion detection). This intermediary detection layer helps distinguish between actual users and passersby, allowing the system to make more accurate decisions about maintaining normal mode versus transitioning to power-saving mode.
Data Source
AI summary
An information processing apparatus according to the present embodiment has, as operation modes, a normal operation power mode and a power-saving mode in which power consumption is lower than that of the normal operation power mode. The apparatus comprises a human detection sensor which is able to detect a user of the information processing apparatus. The apparatus shifts, based on a detection result of the human detection sensor, the operation mode of the information processing apparatus from the second power mode to the first power mode, and determines whether or not to shift the operation mode of the information processing apparatus to the second mode based on a detection result of the human detection sensor when a first predetermined time period has elapsed without receiving a user operation after shifting the operation mode to the first power mode.