Rock Drilling Rig Navigation Without a Predetermined Tunnel Line
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Solution Overview
Problem
Current methods for navigating rock drilling rigs in mining tunnels lack adjustability and effective data monitoring, relying on simple surface markings and pre-designed tunnel lines, which limits flexibility and data utilization.
Innovation Solution
An apparatus equipped with data processing devices that use positioning data to navigate the rock drilling rig, determining direction and length of each round dynamically, combining navigation data to generate a tunnel line in real-time, and integrating sensor and geological data for analysis and visualization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If drilling operations continue without real-time navigation monitoring, then operational simplicity is maintained, but borehole deviation from target accumulates and drilling accuracy deteriorates
Solution Approach 1:
The patent replaces complex mechanical surveying equipment with a navigation system that uses electromagnetic signals (GPS satellites, base station communications) to determine borehole position. The handheld computer processes electronic data from multiple sources (satellite signals, magnetic compass, accelerometer) to calculate precise borehole location and orientation, eliminating the need for physical measurement tools while achieving higher accuracy.
Solution Approach 2:
The handheld computer serves multiple functions: it acts as a GPS receiver, magnetic compass, accelerometer, data processor, and display device. By consolidating these functions into a single universal device, the system achieves high measurement precision without proportionally increasing overall system complexity, as one device performs what would otherwise require multiple specialized instruments.
2Measurement precision
If real-time navigation data processing is implemented, then borehole positioning accuracy improves, but computational requirements and processing time increase
Solution Approach 1:
The system performs preliminary calculations by pre-storing correction factors, satellite orbital parameters, and processing algorithms in the handheld computer's memory. When position data is collected, the device immediately applies these pre-prepared computational frameworks to rapidly determine borehole location, avoiding the need for complex real-time calculations and reducing processing time while maintaining high accuracy.
Solution Approach 2:
The handheld computer autonomously processes navigation data using onboard processors and stored algorithms. It automatically collects signals from GPS satellites and magnetic sensors, performs coordinate transformations, applies corrections for magnetic declination and satellite orbital variations, and displays results without requiring external computational resources or manual intervention, thereby minimizing processing time delays.
3Reliability
If multiple navigation systems (GPS, magnetic compass, accelerometer) are integrated, then positioning reliability improves, but system complexity and cost increase
Solution Approach 1:
The patent merges GPS satellite reception, magnetic compass sensing, and accelerometer measurement functions into a single integrated handheld computer device. The device's processor combines data from all three navigation sources, using their complementary strengths (GPS for global positioning, magnetic compass for directional orientation, accelerometer for tilt and motion compensation) to achieve high reliability borehole positioning and navigation.
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
This solution provides reliable, versatile data for improving drilling processes, allowing for real-time adjustments and post-extraction analysis, enhancing safety and operational efficiency by dynamically forming the mining tunnel line and storing valuable drilling-specific data.
Implementation Method 1
a GPS receiver for receiving signals from a GPS satellite
Implementation Method 2
a magnetic compass for obtaining a magnetic azimuth
Implementation Method 3
an accelerograph for obtaining an inclination angle of the borehole
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
An apparatus, rock drilling rig, method and computer program for executing navigation for a rock drilling rig in a mine tunnel. The rock drilling rig (5) is positioned at faces (9) of rounds (8) and is navigated before initiating drilling. The navigation is executed without a predetermined tunnel line (10). The realized tunnel line is formed by combining navigation data on several rounds. Length and direction of the round to be drilled next may be adjusted according to a need.