Mobile Apparatus Power Feed Control via Acceleration and Switch Detection
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Solution Overview
Problem
Existing mobile apparatuses face issues with accurate detection of states, leading to erroneous power feed control, as they rely solely on acceleration sensors, which can incorrectly differentiate between lifting and carrying states.
Innovation Solution
Incorporating a state identifying section that uses a combination of acceleration detection and switch operation identification to control power feed, ensuring that power is only started when the device is in a predetermined state and stopped when it is not, using a power-feed control section to manage power feed based on detected acceleration and switch operation within a specified time frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If only acceleration sensor is used to detect apparatus state, then device complexity is reduced, but measurement precision deteriorates leading to erroneous detection between lifting and carrying states
Solution Approach 1:
The patent combines acceleration sensor detection with photointerrupter detection to identify apparatus states. The control unit integrates signals from both sensors to distinguish between lifting and carrying states, resolving the ambiguity that arises when using only acceleration sensing.
Solution Approach 2:
The photointerrupter acts as an intermediary sensor that detects the presence or absence of a cover component. This intermediary detection mechanism provides additional information that helps the control unit accurately distinguish between different apparatus states, particularly differentiating lifting from carrying actions.
2Measurement precision
If photointerrupter is added to identify apparatus state, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The photointerrupter serves multiple functions: it detects the presence/absence of the cover, helps distinguish between lifting and carrying states, and works in conjunction with the acceleration sensor to provide comprehensive state identification. This multi-functionality justifies the added component complexity.
Solution Approach 2:
The detection system is segmented into two independent sensing mechanisms: acceleration sensing for motion detection and photointerrupter sensing for positional/component detection. This segmentation allows each sensor to specialize in what it does best, improving overall detection accuracy while maintaining manageable system complexity.
3Ease of operation
If power feed is started based on acceleration detection alone, then ease of operation is improved, but use of energy deteriorates due to unnecessary power consumption in carrying state
Solution Approach 1:
The control unit continuously monitors both acceleration sensor and photointerrupter signals to determine the current apparatus state. This feedback mechanism allows the system to make informed decisions about power feed activation, ensuring power is supplied only when truly needed (lifting state) and not during carrying, thus optimizing energy consumption.
Solution Approach 2:
The power feed control is dynamically adjusted based on real-time detection from both sensors. The system transitions between different power states (on/off) depending on the combination of sensor signals, enabling adaptive power management that balances operational convenience with energy conservation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enhances the accuracy of power feed control, preventing unnecessary power consumption and ensuring proper operation by distinguishing between lifting and carrying states, thereby improving energy efficiency and user experience.
Implementation Method 1
an acceleration detecting section configured to detect acceleration
Data Source
AI summary
A mobile apparatus that can surely execute desired actuation and devises control of actuation to realize power saving and a power feed control method for the mobile apparatus are provided. Therefore, a mobile apparatus of the present invention includes an acceleration detecting section configured to detect acceleration, a state identifying section configured to identify switch operation, and a power-feed control section configured to perform power feed control. The power-feed control section performs control to start power feed when the acceleration detecting section detects acceleration and continue the power feed when the state identifying section identifies the switch operation after the acceleration detecting section detects the acceleration and performs control to stop the power feed when the state identifying section does not identify the switch operation after the acceleration detecting section detects the acceleration.