Wearable Watch Jump Height Detection via Pressure and Acceleration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for detecting and calculating jump height are limited to jumps that involve displacement means like skis or snowboards, and cannot accurately measure jumps performed without such external aids, such as jumping into water from a cliff or bridge.
Innovation Solution
A method using a pressure sensor and accelerometer embedded in a watch to detect pressure and acceleration spikes, allowing for the calculation of jump height by differencing pre-jump and post-jump stable altitudes, with pressure spikes indicating reception and acceleration spikes confirming the jump.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If displacement means (skis, snowboard, bicycle) are used to gather pace before the jump, then jump detection and height calculation is possible, but the method cannot be applied to jumps performed without such external aids
Solution Approach 1:
The invention extracts the jump detection capability from the displacement means and transfers it to a wearable device (watch) that can independently detect jumps using its own sensors (accelerometer and pressure sensor), eliminating the dependency on external displacement means
Solution Approach 2:
The wearable device is designed to detect multiple types of jumps (with or without displacement means, vertical or horizontal jumps) using a unified sensor system, making it universally applicable to various jumping scenarios without requiring specialized equipment for each type
2Reliability
If pressure sensor and accelerometer are embedded in a watch, then jump detection without external displacement means is enabled, but the device must accurately distinguish between pressure spikes from jumps and other pressure variations
Solution Approach 1:
The invention combines the accelerometer and pressure sensor into a unified detection system where both sensors work together to detect and confirm jumps, with the accelerometer providing motion context and the pressure sensor providing contact confirmation, thereby improving reliability through multi-sensor fusion
Solution Approach 2:
The system uses feedback from both sensors to validate jump detections - the accelerometer detects the motion event while the pressure sensor confirms ground contact, and this cross-validation feedback loop ensures accurate differentiation between actual jumps and other pressure variations
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 detection and calculation of jump height for jumps performed globally downwards without external displacement means, providing reliable data through pressure and acceleration measurements.
Implementation Method 1
a detection of a pressure spike of amplitude greater than a first threshold amplitude, within pressure measurements provided by a pressure sensor embedded aboard a watch worn on the wrist of the individual
Implementation Method 2
a sub-step of detecting an acceleration spike of amplitude greater than a second threshold amplitude, on the basis of acceleration measurements provided by a three-axis accelerometer embedded aboard the watch
Data Source
AI summary
A method of detecting and calculating height of a jump performed by an individual including detection of a reception subsequent to the jump is described. The detection includes a sub-step of detecting a pressure spike of amplitude greater than a first threshold amplitude, within pressure measurements provided by a pressure sensor embedded aboard a watch worn on the wrist of the individual. Also described is calculation of a height of the jump by differencing a starting altitude corresponding to a last stable pressure measured before the pressure spike and a finishing altitude corresponding to a first stable pressure measured after the pressure spike via the pressure sensor, a stable pressure being defined as a pressure whose variations do not exceed 0.1 hectopascals for at least 2 seconds.