Diver Watch Ascent Rate Indicator Mechanism
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Solution Overview
Problem
Existing diver's watches lack an ascent rate indicator mechanism, making it difficult for divers to monitor and adjust their ascent rate to avoid fatal embolisms, and previous devices are either incomplete or inflexible in changing ascent rates.
Innovation Solution
An ascent rate indicator mechanism comprising a first wheel set kinematically connected to a pressure sensor, with a second wheel set driven in a single direction of rotation to measure and display the ascent rate, featuring uncoupling and return means to refresh the display at regular intervals, allowing synchronization of the ascent rate display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a diver's watch includes an ascent rate indicator mechanism, then the diver can monitor ascent rate to prevent embolisms, but the device complexity increases
Solution Approach 1:
The patent implements nesting by placing the ascent rate indicator mechanism within the existing watch structure. The second wheel set is driven by the first wheel set, and the indicator mechanism is integrated into the watch face, allowing multiple functions (depth indication, ascent rate monitoring, timing) to coexist in a compact arrangement without requiring a completely separate device.
Solution Approach 2:
The patent uses an intermediary approach by introducing a second wheel set that acts as a mediator between the pressure sensor-driven first wheel set and the ascent rate display. This intermediate mechanism allows the ascent rate to be calculated and displayed separately from the depth indication, enabling the function to be added without directly complicating the existing depth indication mechanism.
2Measurement precision
If the ascent rate indicator displays continuous measurements, then real-time monitoring is improved, but the device complexity and power consumption increase
Solution Approach 1:
The patent applies periodic action by having the uncoupling and return means actuate at regular intervals to refresh the ascent rate display. Instead of continuous updating, the mechanism provides periodic measurements and displays the ascent rate at predetermined time intervals, reducing the complexity of continuous measurement mechanisms while maintaining adequate monitoring accuracy for safe diving practices.
3Adaptability or versatility
If the ascent rate can be adjusted dynamically, then adaptability is improved, but the device complexity increases
Solution Approach 1:
The patent implements dynamics by allowing the ascent rate indicator to adapt to different diving scenarios through its periodic refresh mechanism. The uncoupling and return means can be configured to refresh at different intervals, enabling the device to adapt to various diving conditions and preferences without requiring complex manual adjustment controls or multiple fixed-rate indicators.
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 divers to accurately and continuously monitor their ascent rate, allowing for adjustments to prevent embolisms, with the mechanism refreshing the ascent rate measurement at regular intervals, providing real-time feedback for safe diving practices.
Implementation Method 1
a pressure sensor arranged to deform mechanically under the effect of a pressure variation in the surrounding medium
Implementation Method 2
a pressure sensor arranged to deform mechanically under the effect of a pressure variation in the surrounding medium
Data Source
AI summary
An ascent rate indicator mechanism includes a first wheel set and a pressure sensor. The first wheel set is connected to the pressure sensor driven in rotation by a pressure variation. The mechanism further includes a second wheel set driven by the first wheel set in a single direction of rotation from a start position into a measurement position corresponding to a decrease in pressure, uncoupling and return structure to be actuated at regular intervals to uncouple the second wheel set and to return it to the start position, an ascent rate display mechanism connected to the second wheel set and including an indicator member arranged to occupy, at each regular interval, a display position representative of the decrease in pressure during the interval, and synchronization structure actuated at each regular interval and arranged to maintain the display position of the indicator member during the regular interval.