Power State Control for Electrical Device State Recognition
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Solution Overview
Problem
Existing power saving technologies for electrical devices do not adequately reduce power consumption while still allowing the device to recognize its state.
Innovation Solution
An electrical device is designed with a detecting unit, a controlling unit, and a holding unit. The controlling unit has two power states: a higher power state where it acquires detection results and a lower power state where it does not. During the lower power state, the detection results are stored and when the power state transitions back to the higher state, the controlling unit retrieves this stored information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the controlling unit continuously acquires detection results to recognize device state, then the device can monitor its state in real-time, but power consumption increases
Solution Approach 1:
The detection unit continuously acquires detection results and stores them in the holding unit in advance. When the controlling unit needs state information, it can retrieve pre-stored data without active sensing, enabling state recognition while reducing power consumption by performing detection actions beforehand rather than continuously.
Solution Approach 2:
The system transitions between active detection states and power-saving states periodically. The detection unit operates intermittently to update stored detection information, allowing the controlling unit to switch between acquiring real-time data and retrieving pre-stored data, thereby reducing overall power consumption while maintaining state awareness.
2Use of energy by moving object
If the controlling unit enters a power saving state to reduce power consumption, then energy usage decreases, but the ability to recognize device state deteriorates
Solution Approach 1:
The holding unit acts as an intermediary between the detection unit and the controlling unit. It stores detection results and makes them accessible to the controlling unit even when the controlling unit is in a power-saving state, ensuring that state information is preserved and retrievable without requiring the controlling unit to remain fully active.
3Measurement precision
If the detection unit continuously operates to provide real-time detection results, then state monitoring accuracy improves, but power consumption increases
Solution Approach 1:
The detection unit performs detection operations in advance and stores results in the holding unit. This allows the system to have accurate state information available without requiring continuous active detection, reducing power consumption while maintaining measurement precision through pre-acquired data.
Data Source
AI summary
An electrical device includes a detecting unit configured to detect a state of the electrical device, a controlling unit configured to acquire a detection result of the detecting unit and executing control based on the detection result, and a holding unit configured to hold the detection result of the detecting unit as detection information. A power state of the controlling unit includes a first state and a second state in which power consumption is higher than in the first state. Power is supplied to the detecting unit and the holding unit at least during the first state. The controlling unit acquires the detection result in the second state and does not acquire the detection result in the first state. In a case where the power state transitioned from the first state to the second state, the controlling unit acquires the detection information stored in the holding unit in the first state.