Wearable Imaging Device Positional Detection and Mode Switching
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Solution Overview
Problem
Existing wearable imaging devices face challenges in accurately determining their position relative to the wearer's wrist, leading to inefficient image capture and power consumption issues due to inconsistent lighting and movement.
Innovation Solution
An imaging device with a processor that determines positional conditions using an illuminance sensor and acceleration sensor to adjust camera settings, switching between wide-angle and narrow-angle views based on whether it is worn on the wrist or removed, optimizing image capture and power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the imaging device uses a fixed imaging mode, then the device structure is simple, but the image capture accuracy deteriorates when worn on wrist versus held in hand
Solution Approach 1:
The imaging device dynamically switches between wide-angle imaging mode and normal imaging mode based on real-time detection of wearing state. The processor determines whether the device is worn on the wrist or held in hand, and automatically adjusts the imaging parameters accordingly, making the imaging characteristics adaptable rather than fixed.
Solution Approach 2:
The device uses its own sensors (acceleration sensor and illuminance sensor) to automatically detect its operational context and adjust imaging parameters without external intervention. The system serves itself by using internal sensor data to control its own imaging behavior.
2Reliability
If the device continuously captures images in all conditions, then no image is missed, but power consumption increases unnecessarily
Solution Approach 1:
The imaging operation dynamically adapts to the detected wearing state. When the device is worn on the wrist, continuous or frequent imaging is enabled to ensure reliable capture. When held in hand, imaging frequency is reduced or disabled, optimizing power consumption based on actual operational needs.
Solution Approach 2:
The processor changes the imaging operation parameters (frequency, resolution, or enabling/disabling) based on the detected condition. This parameter adjustment ensures that imaging reliability is maintained when needed while reducing power consumption when the device is not in its primary wearing state.
3Area of stationary object
If the device uses wide-angle imaging mode always, then surveillance coverage is maximized, but image quality for close-up subjects deteriorates
Solution Approach 1:
The imaging characteristics dynamically switch between wide-angle mode (for maximum coverage when worn) and normal mode (for better quality when held). This dynamic adjustment ensures that the appropriate balance between coverage area and image quality is maintained based on the actual usage scenario.
4Ease of operation
If the device cannot distinguish between wearing states, then the control logic is simple, but imaging parameters are inappropriate for the actual usage condition
Solution Approach 1:
The mechanical judgment of wearing state is replaced by sensor-based detection. The acceleration sensor and illuminance sensor provide electronic data that the processor uses to determine wearing state, replacing simple mechanical control logic with sensor-driven intelligent control.
Solution Approach 2:
Sensors act as intermediaries between the physical wearing state and the imaging control system. The acceleration sensor and illuminance sensor mediate the information about device position and orientation, enabling accurate determination of wearing state without direct mechanical contact or complex control logic.
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
The device effectively performs imaging based on its position, reducing power consumption and ensuring accurate image capture by adjusting settings according to the detected conditions, allowing for efficient surveillance and self-imaging modes.
Implementation Method 1
determine whether a first condition based on a positional relationship of the lens with respect to the wearing target is satisfied
Implementation Method 2
determine whether a second condition that includes a condition based on the positional relationship of the lens with respect to the wearing target is satisfied
Implementation Method 3
a lens that guides, to an imaging element, light reflected from a subject
Data Source
AI summary
An imaging device includes a lens that guides, to an imaging element, light reflected from a subject, a wearing tool for wearing at least the lens on a wearing target, and at least one processor. The processor determines whether a first condition based on a positional relationship of the lens with respect to the wearing target is satisfied, determines whether a second condition that includes a condition based on the positional relationship of the lens with respect to the wearing target is satisfied, the second condition differing from the first condition, and makes an imaging parameter of at least one of the imaging element or the lens for when the first condition is satisfied and for when the second condition is satisfied different from each other.