Archery Bow Monitoring With Tri-Axial Motion Feedback
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Solution Overview
Problem
Existing archery bows lack the ability to monitor position and movement accurately before, during, and after the shot, leading to inadequate feedback for improving archer technique and identifying loose or damaged components, with many systems relying on one-dimensional accelerometer data that can become saturated and produce approximate results.
Innovation Solution
A bow element with a stabilizer mounting facility, a tri-axial accelerometer, and a processor that generates and transmits three-dimensional acceleration information via a Bluetooth transmitter, providing real-time feedback through a receiver app for improving archery accuracy and identifying equipment issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If one-dimensional accelerometer data is used for bow monitoring, then device complexity is reduced, but measurement precision deteriorates due to saturation and approximate results
Solution Approach 1:
The patent transitions from one-dimensional accelerometer data to three-dimensional acceleration information by incorporating multiple accelerometers oriented along different axes (X, Y, and Z axes). This dimensional expansion allows the system to capture bow movements in all spatial directions, preventing data saturation and providing comprehensive measurement of lean, tilt, and rotation without losing precision.
2Measurement precision
If three-dimensional acceleration information is collected at high sampling rates, then measurement precision is improved, but use of energy increases
Solution Approach 1:
The system implements variable sampling rates that adapt to the shooting phase. During the critical shot execution phase, the accelerometer samples at high rates (up to 3200 Hz) to capture precise movement data. During less critical phases like aiming and follow-through, the sampling rate is reduced. This periodic variation in measurement intensity maintains measurement precision when needed while significantly reducing overall energy consumption during the complete shooting cycle.
3Measurement precision
If real-time feedback is provided to archers, then archery accuracy is improved, but device complexity increases due to additional sensors and processing
Solution Approach 1:
The patent integrates multiple functions into a single monitoring device that combines accelerometers for motion detection, gyroscopes for orientation measurement, and processors for real-time data analysis. This multi-functional integration provides comprehensive feedback on lean, tilt, and rotation while avoiding the need for separate dedicated devices for each measurement type, thereby reducing overall system complexity despite the enhanced capabilities.
4Stability of the object's composition
If stabilizers are added to reduce movement, then stability is improved, but weight of moving object increases
Solution Approach 1:
The monitoring system provides real-time feedback on bow stability by measuring lean, tilt, and rotation during the shooting process. This feedback enables archers to adjust their technique to achieve better natural stability, reducing the reliance on heavy stabilizer weights. The system quantifies stability performance, allowing archers to improve through skill development rather than simply adding mass to the bow.
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
Enhances archery accuracy by providing detailed real-time feedback on lean, tilt, and rotation, helping archers improve technique and identify equipment problems, thereby increasing the energy transfer to the projectile and improving kinetic energy on the target.
Implementation Method 1
The body includes an accelerometer. The bow element may include a processor connected to the accelerometer. The processor may be configured to receive three-dimensional acceleration information from the accelerometer.
Data Source
AI summary
An archery bow comprises a stabilizer mounting facility. A bow element for the archery bow comprises a body. The body comprises a first mounting facility. The first mounting facility is configured for connection to the stabilizer mounting facility. The body comprises a second mounting facility. The second mounting facility is configured for connection to a bow stabilizer. The body includes an accelerometer. The bow element comprises a processor. The processor is connected to the accelerometer. The processor is configured to receive three-dimensional acceleration information from the accelerometer. The processor is operable to generate sampled information based on the three-dimensional acceleration information. The bow element comprises a transmitter. The transmitter is connected to the processor. The transmitter is operable to transmit the sampled information.