Portable Training Range Calibration for Precise Object Tracking
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Solution Overview
Problem
Existing training systems are not portable and require time-consuming setup, making them difficult to transport and deploy in diverse environments.
Innovation Solution
A portable training system comprising a pattern projecting device, positional cameras, and a main screen, along with a calibration method, allowing for quick setup using positional patterns projected in near-infrared wavelengths and captured by cameras to determine object position and orientation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a training system uses positional cameras and patterns to determine object position and orientation in real time, then measurement precision and interaction capability are improved, but device complexity and setup time increase
Solution Approach 1:
The patent applies preliminary action by pre-defining the geometric relationships between positional patterns and the main screen, and by creating a calibration protocol that establishes coordinate system transformations before actual training use. The system pre-calculates position and orientation data based on captured positional patterns, so that during training sessions, the complex calculation work has already been prepared, enabling real-time tracking without complex on-the-fly computations.
2Ease of operation
If the training system is made portable and easily transportable, then ease of operation and adaptability are improved, but measurement precision and positioning accuracy may worsen
Solution Approach 1:
The patent applies self-service through an automated calibration process where the system captures images of positional patterns and automatically computes calibration data without requiring manual measurement or complex alignment procedures. The calibration software module performs coordinate system transformations and establishes the relationship between camera views and screen coordinates automatically, enabling portable deployment while maintaining precision through self-calibration rather than manual setup.
3Productivity
If setup time is reduced for portable deployment, then productivity and ease of operation are improved, but calibration precision and positioning accuracy may worsen
Solution Approach 1:
The patent applies preliminary action by pre-designing the calibration protocol and pre-defining the geometric relationships in the system architecture. The calibration process itself is preliminary in nature - it establishes the coordinate transformations and system parameters before actual training operations begin. This preliminary calibration step, while requiring time, is performed once per deployment and enables rapid subsequent operations without compromising accuracy.
Solution Approach 2:
The patent replaces manual mechanical alignment and measurement procedures with an automated optical-digital calibration system. Instead of physically measuring and manually configuring the positions of cameras and screens, the system uses digital image capture of positional patterns and computational algorithms to automatically determine geometric relationships. This substitution of mechanical procedures with optical-digital methods accelerates the calibration process while maintaining or improving 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 rapid and portable deployment of interactive training scenarios, facilitating easy setup and efficient interaction with training environments using EM wave patterns and cameras for precise object positioning.
Implementation Method 1
positional patterns, which are projected by a pattern projecting device of a training system onto the positional reflective screens in a near infrared spectrum
Implementation Method 2
the positional camera captures images of positional fields or patterns of a particular shape which are emitting EM waves of a certain wavelength
Data Source
AI summary
The invention relates to a system for training, where a training scenario is displayed on a screen and trainees interact with the training scenario, for example point a training weapon replica and fire at a virtual target displayed within the training scenario, so the system needs to determine in real time the position and/or orientation of a trainee or other object relevant for training, such as a training weapon replica, in order to determine, for example, whether the trainee hits a target with the weapon replica. More particularly, the invention relates to a training system for displaying an interactive training scenario and to a method of its calibration, wherein the proposed system enables portability and setting up a training environment easily and quickly for example wherever we can find a large white surface for a main screen and source of electricity to power the training system.