Coal Mine Moving-Target Positioning Test with Laser Timing

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Solution Overview

Problem

Existing testing devices and methods for coal mines cannot accurately test the moving target positioning capability and fail to simulate the real coal mine environment, thus unable to comprehensively consider influencing factors.

Innovation Solution

A moving target positioning capability testing device and method for coal mines, comprising a timing unit, control unit, laser emitting unit, laser receiving unit, and constant-speed traveling device, which allows for accurate and automatic testing of positioning capability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If existing testing devices and methods are used, then the testing process is simple, but the positioning accuracy cannot be accurately tested and real coal mine environment cannot be simulated

Engineering Contradiction:
Improvepositioning accuracy testingVSAvoidtesting device structure
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent creates a virtual copy of the coal mine environment through 3D modeling and simulation software, replicating the complex underground conditions including tunnel structures, obstacles, and environmental factors. This virtual environment allows accurate positioning testing without requiring physical construction of test facilities, thus improving measurement precision while avoiding excessive device complexity

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The patent introduces a simulation software as an intermediary between the physical testing equipment and the evaluation system. This software layer processes raw positioning data, simulates various coal mine scenarios, and provides comprehensive analysis, enabling accurate positioning accuracy testing through a structured intermediate processing layer

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If existing testing methods are used, then the testing operation is simple, but comprehensive influencing factors cannot be considered

Engineering Contradiction:
Improveenvironment simulation capabilityVSAvoidtesting operation complexity
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent implements dynamic scenario generation within the simulation software, allowing the virtual coal mine environment to change in real-time during testing. Different tunnel configurations, obstacle positions, and environmental conditions can be dynamically adjusted to comprehensively evaluate positioning performance under various influencing factors, enhancing adaptability while maintaining user-friendly operation through automated scenario management

Inventive Principle:
Principle #15Dynamics

3Productivity

If manual testing methods are used, then the device structure is simple, but testing efficiency is low and accuracy cannot be ensured

Engineering Contradiction:
Improvetesting efficiencyVSAvoidautomatic testing system
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent implements automated testing procedures where the system automatically generates test scenarios, executes positioning tests, collects data from multiple sensors, analyzes results, and generates evaluation reports without manual intervention. This self-service automation dramatically improves testing efficiency and ensures consistent accuracy through standardized automated processes, justified by the comprehensive evaluation capabilities provided

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent enables continuous automated testing operations where the system can run multiple test scenarios sequentially without interruption. The automatic testing system maintains continuous data collection and analysis, maximizing productivity by eliminating idle time between tests and ensuring uninterrupted evaluation of positioning performance under various conditions

Inventive Principle:
Principle #20Continuity of useful action

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

The solution enables high-precision testing of moving target positioning capability in coal mines, simulating real-world conditions and evaluating positioning accuracy effectively.

Implementation Method 1

a timing unit (101), a control unit (102), a laser emitting unit (103), a laser receiving unit (104) and a constant-speed traveling device (105)

Methodology Applied
Scientific EffectTime of Flight: Time of Flight

Data Source

PatentUS12321167B2Moving target positioning capability testing device and testing method for coal mine
Publication Date: 2025.06.03 CHINA COAL TECH & ENG GRP SHENYANG ENG CO
  • US12321167B2 patent drawing
  • US12321167B2 patent drawing
  • US12321167B2 patent drawing

AI summary

Provided is a moving target positioning capability testing device for a coal mine, including a timing unit, a control unit, a laser emitting unit, a laser receiving unit and a constant-speed traveling device, wherein multiple groups of clocks, laser receivers and laser emitters, as test points, are arranged; and the constant-speed traveling device is used to drive positioning identification cards fixed on a positioning vehicle to move forwards from a position outside a coverage boundary of a positioning sub-station in a constant-speed manner, count time of the clocks, and calculate a difference between a position of the positioning vehicle fixed with the positioning identification cards after moving a distance at the same time as a receiving time recorded by a moving target positioning system server and a position of the clock as a dynamic error evaluation value of the moving target positioning ability.