Camera Pressure Sensor Time-Series Data Association
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Solution Overview
Problem
Existing underwater photography devices only record water depth data in association with image data, lacking the ability to track changes in pressure data over time, which limits the ability to accurately recall the scene or situation of underwater photography.
Innovation Solution
A photographing device equipped with a pressure sensor, detection unit, and controller that generates time-series pressure data when transitioning from air to water and vice versa, associating this data with image files for storage, allowing for the recording of the underwater photography process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If only water depth data is recorded in association with image data, then the storage structure is simple, but the ability to accurately recall the scene or situation is limited
Solution Approach 1:
The patent segments the data recording process into distinct phases: a first period when the camera is in water (recording water depth data) and a second period when the camera is in air (recording air data). This segmentation allows the system to capture different types of information at appropriate times without overwhelming complexity. The controller automatically switches between recording modes based on detection unit output, resolving the contradiction by organizing information collection into manageable temporal segments.
Solution Approach 2:
The patent implements preliminary action by having the detection unit continuously monitor whether the camera is in water or air before and during photographing operations. This preliminary detection enables the controller to proactively determine which type of data (water depth or air data) should be recorded and associated with subsequent image data, rather than attempting to process all possible data types simultaneously. This preliminary classification simplifies the overall data handling complexity while ensuring complete information capture.
2Reliability
If time-series pressure data is continuously recorded, then the underwater photography process can be accurately tracked, but the data storage requirements and processing complexity increase
Solution Approach 1:
The patent applies periodic action by recording pressure data at specific intervals rather than continuously. The system records pressure data during a first period when the camera is in water, then stops recording during a second period when the camera is in air. This periodic recording approach maintains reliable tracking of the underwater photography process while significantly reducing data storage requirements and processing complexity compared to continuous recording. The controller manages this periodic operation based on detection unit feedback.
Solution Approach 2:
The patent implements dynamics by making the data recording process adaptive to the camera's environmental state. The controller dynamically adjusts the recording behavior based on real-time detection of whether the camera is in water or air. This dynamic approach ensures that pressure data is recorded only when relevant (during underwater photography), maintaining high reliability for tracking the photography process while avoiding the accumulation of unnecessary data that would increase storage and processing complexity.
3Quantity of substance
If water depth data is recorded only at the moment of photographing, then the data storage is efficient, but the temporal context of the photography is lost
Solution Approach 1:
The patent ensures continuity of useful action by continuously monitoring the camera's environmental state (water or air) throughout the entire operation, not just at the moment of photographing. This continuous detection enables the system to maintain an unbroken temporal record of when the camera was in water versus air. When photographing occurs during the water period, the associated pressure data provides accurate temporal context. This continuous monitoring approach preserves temporal context information while maintaining efficient data storage by recording only relevant information during appropriate periods.
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
Enables accurate association of image data with the underwater photography process, including water depth and duration, facilitating the recall of the scene and situation by storing time-series pressure data with image files.
Implementation Method 1
a pressure sensor that detects a pressure received by the photographing device
Data Source
AI summary
A photographing device includes a pressure sensor that detects a pressure received by the photographing device; a detection unit that detects whether the photographing device is placed in the water or in the air; and a storage unit that stores image information. A controller of the photographing device starts an operation of generating time-series pressure data on the basis of an output of the pressure sensor when a first state, in which the photographing device is placed from the air into the water, is detected. The controller stops the operation of generating the time-series pressure data when a second state, in which the photographing device is placed from the water into the air, is detected, associate the image file stored in the storage unit from the first state to the second state with the time-series pressure data, and store again the image file in the storage unit.