Fight Analysis System Using Passive RFID Tags and Force Sensors
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Solution Overview
Problem
Current fight analysis systems rely on subjective human judgment and require significant equipment, limiting mobility and providing incomplete data on strike type and force, while training simulations lack realism due to safety concerns and inability to accurately assess impact.
Innovation Solution
A fight analysis system using passive RFID tags and force sensors integrated into striking modules to objectively determine strike location, type, and force, with a graphical user interface for data display, allowing for more accurate and realistic fight simulations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If judges determine strike quantity and quality based on naked eye observation, then no special equipment is needed, but measurement precision and objectivity are significantly reduced
Solution Approach 1:
The patent replaces the mechanical/visual assessment system (judges observing with naked eye) with an electronic sensing system. Force sensors, accelerometers, and other electronic devices detect strike parameters objectively, eliminating subjective human judgment and significantly improving measurement precision without requiring complex wired equipment.
Solution Approach 2:
The patent uses optical cameras to capture visual copies of fight sequences, which are then analyzed by computer vision algorithms to detect and measure strike parameters. This optical copying approach provides objective measurement data without requiring physical contact sensors on the fighters, reducing equipment complexity while improving accuracy.
2Reliability
If fighters wear equipment with switches or contacts to detect landed strikes, then strike location and occurrence can be indicated, but device complexity and mobility restrictions increase
Solution Approach 1:
The patent replaces mechanical contact switches and wired systems with wireless electronic sensors and optical detection systems. Force sensors and accelerometers wirelessly transmit strike data, eliminating the need for extensive wiring while maintaining reliable strike detection accuracy. Optical cameras provide contactless detection of strike events.
Solution Approach 2:
The patent introduces optical cameras and wireless communication systems as intermediary devices between the fighters and the scoring system. These intermediaries capture and transmit strike data without requiring direct physical contact or wired connections to the fighters, reducing equipment complexity while improving reliability.
3Object-affected harmful factors
If fake knives are made safe for training by reducing harmful effects, then fighter safety is improved, but training realism and strike force assessment are diminished
Solution Approach 1:
The patent incorporates force sensors and accelerometers in the training weapons that provide real-time feedback on strike force and impact. This allows safe training weapons to maintain measurement accuracy by electronically detecting and reporting strike parameters, enabling both safety and realistic force assessment simultaneously.
Solution Approach 2:
The patent replaces the mechanical harm mechanism (sharp blade cutting) with electronic sensing mechanisms that detect strike parameters. Force sensors and accelerometers measure strike force and impact characteristics without requiring the weapon to be sharp or harmful, maintaining both safety and measurement precision.
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 objective and accurate assessment of strike quality and quantity, enhancing training realism by providing detailed feedback on force and impact, without the need for extensive equipment, thus improving training efficacy and reducing human error.
Implementation Method 1
one fighter wears a plurality of passive RFID tags at different locations that are read by a striking module
Implementation Method 2
Force sensors in the striking module enable determination of the type and force of a landed strike
Data Source
AI summary
A fight analysis system to objectively determine the quality and quantity of strikes in a fight. In one exemplary embodiment, one fighter wears a receiving module having a plurality of passive RFID tags at different locations that are read by a striking module (e.g., a knife) when the striking module lands on, or comes in proximity to, the receiving module, to provide the location of a strike. Force sensors in the striking module enable determination of the type and force of a landed strike. A graphical user interface module displays information gathered by the fight analysis system.