3D Arrow Flight Sensing for Stabilization Point Detection
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Solution Overview
Problem
Existing archery projectile measurement systems are not adaptable to various arrow shafts and broadheads, impact flight trajectory, rely on one-dimensional accelerometer data, become saturated during launch or impact, provide approximate results, and fail to account for changing flight conditions.
Innovation Solution
An archery projectile facility with a three-dimensional accelerometer system that generates and processes acceleration information, includes a transmitter and receiver for data transmission, and provides detailed flight information including stabilization point, velocity, distance, and angle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If three-dimensional accelerometer data is collected at high sampling rates, then measurement precision and reliability are improved, but device complexity and data processing requirements increase
Solution Approach 1:
The system performs preliminary actions by collecting three-dimensional accelerometer data at high sampling rates (50-3200 times per second) during flight, storing this data in memory for later analysis. This preliminary data collection at high precision without real-time processing burden resolves the contradiction between measurement precision and processing complexity.
Solution Approach 2:
The patent introduces an intermediary computational approach by using frequency analysis algorithms to process the raw accelerometer data. The system acts as an intermediary between the high-precision sensors and the final stabilization point determination, transforming complex raw data into meaningful results through spectral analysis.
2Measurement precision
If frequency analysis is performed on raw accelerometer data, then stabilization point determination accuracy is improved, but processing time and computational resources increase
Solution Approach 1:
The system applies partial action by performing frequency analysis selectively on portions of the flight data to identify the stabilization point. Rather than continuously processing all data at full computational intensity, the system analyzes frequency characteristics at key phases of flight (launch, stabilization, impact) to determine the stabilization point efficiently.
3Adaptability or versatility
If existing measurement systems are used with various arrow shafts and broadheads, then versatility is improved, but trajectory accuracy deteriorates due to system impact
Solution Approach 1:
The measurement system achieves universality by being designed to work with multiple types of arrow shafts and broadheads through standardized mounting interfaces. The elongated body can be attached to various projectile configurations while maintaining measurement capability, resolving the contradiction between versatility and measurement reliability.
Solution Approach 2:
The patent replaces mechanical measurement systems that physically contact and potentially alter projectile trajectory with accelerometer-based sensing. The electronic sensing system substitutes for mechanical measurement methods, allowing versatile adaptation to different arrow configurations without the mechanical interference that compromises trajectory accuracy.
4Device complexity
If accelerometer data is averaged, then processing complexity is reduced, but measurement precision and reliability deteriorate
Solution Approach 1:
The system inverts the conventional approach by not averaging the raw accelerometer data but instead performing frequency analysis on the complete high-resolution dataset. This inversion preserves the full measurement precision while deriving meaningful results through spectral characteristics rather than simple temporal averaging.
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
Accurately determines the stabilization point and other flight dynamics, enabling improved archery performance analysis and equipment selection.
Implementation Method 1
The archery projectile facility includes at least one accelerometer operable to generate three-dimensional acceleration information
Implementation Method 2
The transmitter is operably connected to the body processor to broadcast the sampled information. The receiver includes a receiver processor adapted to generate resulting information based on the sampled information
Data Source
AI summary
An archery projectile facility comprises an elongated body. The elongated body includes at least one accelerometer. The at least one accelerometer is operable to generate three-dimensional acceleration information. The archery projectile facility comprises a body processor. The body processor is operably connected to the at least one accelerometer. The body processor is adapted to process the three-dimensional acceleration information to generate sampled information. The archery projectile facility comprises a transmitter. The transmitter is operably connected to the body processor to broadcast the sampled information. The archery projectile facility comprises a receiver. The receiver includes a receiver processor. The receiver processor is adapted to generate resulting information based on the sampled information. The resulting information is based on a determination of a stabilization point.