Image Stabilization Startup Control Using State Change Detection
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Solution Overview
Problem
Existing image stabilization systems require frequent initialization operations upon startup, leading to power consumption, mechanical noise, and delayed image capturing, with potential erroneous determination of initialization needs based on state changes during low power consumption states.
Innovation Solution
A controlling apparatus with a rotation driving unit, state detecting unit, and controlling unit that determines whether to perform initialization based on changes in the image pickup apparatus's state during system off and between shutdown and startup, using output signals from state detecting units to accurately assess the need for initialization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If initialization operation is performed every time the system is started up, then the relative positions of axes are ensured to be correct, but power is consumed and mechanical driving annoys the user
Solution Approach 1:
The system dynamically adjusts the initialization operation based on detected state changes. The controlling unit determines whether to perform initialization by evaluating changes in acceleration, orientation, or position data from sensors during the off state or between shutdown and startup, making the initialization process conditional rather than fixed.
Solution Approach 2:
The patent replaces purely mechanical initialization driving with a sensor-based detection system. Acceleration sensors, orientation sensors, or position sensors detect state changes, and the controlling unit uses this information to determine whether initialization is necessary, substituting mechanical action with electronic sensing and logical determination.
2Reliability
If initialization operation is performed every time the system is started up, then the relative positions of axes are ensured to be correct, but image capturing cannot be performed immediately after startup
Solution Approach 1:
The system dynamically adjusts the initialization operation based on detected state changes. The controlling unit determines whether to perform initialization by evaluating changes in acceleration, orientation, or position data from sensors during the off state or between shutdown and startup, making the initialization process conditional rather than fixed.
Solution Approach 2:
The system performs preliminary detection of state changes during the off state or between shutdown and startup using sensors. By detecting whether the apparatus has been shaken or moved before startup, the system prepares the determination of whether initialization is needed, allowing immediate image capturing when no state change is detected.
3Use of energy by moving object
If initialization determination is made by using only state change during low power consumption state, then power consumption is reduced, but erroneous determination may be made when apparatus is continuously shaken
Solution Approach 1:
The patent merges multiple detection approaches: state changes during the off state, state changes between shutdown and startup, and sensor data from acceleration sensors, orientation sensors, or position sensors. The controlling unit综合考虑 these multiple sources to make a more accurate determination of whether initialization is needed, reducing erroneous determinations while maintaining low power consumption.
Solution Approach 2:
The system uses feedback from sensors to continuously monitor the apparatus state. Acceleration sensors, orientation sensors, or position sensors provide feedback about movement or shaking, and the controlling unit uses this feedback to accurately determine whether initialization is necessary, preventing erroneous determinations even when the apparatus is continuously shaken.
Data Source
AI summary
A driving apparatus includes a rotation driving unit configured to rotationally drive a movable portion of an image pickup apparatus, a state detecting unit configured to detect a state of the image pickup apparatus, and a controlling unit configured to determine whether or not to perform an initialization operation by the rotation driving unit. The controlling unit determines whether or not to perform the initialization operation based on at least one of a change in the state of the image pickup apparatus during a system off and a change in the state of the image pickup apparatus between at a time of a system shutdown and at a time of a system startup, each change being acquired from an output signal from the state detecting unit.