Dive Computer Real-Time Severity Index Algorithm
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Solution Overview
Problem
Current dive computers do not differentiate between types of dives, using the same mathematical models for dives of varying depths and durations, which can lead to inadequate safety assessments and increased risk of decompression sickness, as they do not consider real-time data on gas composition, depth, and time during the dive.
Innovation Solution
A method to calculate a dive severity index (DSI) in real-time using the formula DSI=k1*f(GAS)*f(D)*f(T), where DSI is based on the inhaled gas, depth, and time, allowing for dynamic adjustment of decompression algorithms to account for dive severity, and modifying threshold values and half-times based on dive conditions to ensure safer ascents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the same decompression algorithm is used for all dive types, then the device complexity is reduced and ease of operation is improved, but the reliability of safety assessment deteriorates
Solution Approach 1:
The patent applies parameter changes by introducing a dive severity index (DSI) that dynamically adjusts decompression algorithm parameters based on real-time dive conditions. The DSI is calculated from multiple parameters including depth, time, gas composition, and dive profile, allowing the system to adapt algorithm sensitivity and conservatism levels without requiring multiple complete algorithms. This resolves the contradiction by enabling reliable, customized safety assessments through parameter adjustment rather than algorithm complexity.
2Measurement precision
If real-time monitoring of gas composition, depth and time is implemented, then the measurement precision of dive severity assessment is improved, but the device complexity increases
Solution Approach 1:
The patent applies universality by designing a multi-functional monitoring system where a single integrated processor performs multiple functions: tracking dive depth, timing dive duration, analyzing gas composition data, calculating the dive severity index, and adjusting decompression parameters. This consolidates what would otherwise require separate specialized systems into one universal device, improving measurement precision while minimizing the increase in device complexity through functional integration.
3Reliability
If decompression parameters are dynamically adjusted based on dive severity, then the reliability of decompression safety is improved, but the ease of operation deteriorates
Solution Approach 1:
The patent applies self-service by implementing an automated system where the dive computer independently monitors all dive parameters, calculates the dive severity index in real-time, and automatically adjusts decompression recommendations without requiring diver intervention. The system serves itself by making intelligent decisions based on sensor data and pre-programmed algorithms, improving decompression safety while maintaining ease of operation as the diver simply follows the device's guidance without needing to understand or manually adjust the complex parameters.
Data Source
AI summary
A method for for assessing severity of an underwater dive includes calculating a dive severity index by: (a) determining the gas breathed by the diver; (b) measuring the dive time; (c) determining the depth profile of the dive; (d) calculating a dive severity index based on a function of steps (a), (b) and (c); and (e) assessing severity based on the dive severity index calculated in step (d), wherein the steps (a), (b), (c), (d) and (e) are carried out in real time, at each instant of the dive time of the diver, and step (d) is performed according to the formula: DSI=k1*f(GAS)*f(D)*f(T), where: DSI is the dive severity index, k1 is an arbitrary constant, f(GAS) is a function of the inhaled gas, f(D) is a function of the dive depth, and f(T) is a function of the dive time.