Underground Marker Location via Signal Trilateration

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

In mining operations, accurately identifying the location of ore body boundaries post-blasting is challenging, leading to inefficiencies and 'ore dilution' due to the movement of geological formations during blasting, making it difficult to separate valuable ore from waste rock effectively.

Innovation Solution

A system and process for locating underground markers using signal transmission and reception through the ground, employing markers that act as network nodes to determine their positions based on signal properties, allowing for trilateration and iterative modeling to accurately map the post-blast ore body boundaries.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If traditional geological mapping methods are used to identify ore body boundaries, then pre-blast ore locations can be determined, but post-blast ore body boundary locations cannot be accurately predicted due to ground movement during blasting

Engineering Contradiction:
Improveore body boundary location accuracyVSAvoidpost-blast boundary prediction reliability
Core Design Contradiction:
Measurement precisionVSReliability

Solution Approach 1:

Markers are embedded in the ground at predetermined locations corresponding to expected ore body boundaries before blasting occurs. These markers serve as reference points that can be tracked before and after blasting to determine actual boundary locations despite ground movement.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system transmits signals between markers to detect their locations after blasting, providing feedback on actual boundary positions. This feedback mechanism allows comparison between predicted and actual boundary locations, enabling correction of prediction models for future blasting operations.

Inventive Principle:
Principle #23Feedback

2Productivity

If manual identification of ore boundaries in the muck pile is performed, then ore can be separated from waste rock, but the process is time-consuming and leads to ore dilution

Engineering Contradiction:
Improveore extraction speedVSAvoidore boundary identification accuracy
Core Design Contradiction:
ProductivityVSMeasurement precision

Solution Approach 1:

The system replaces manual visual identification and physical separation methods with an automated electronic detection system. Signal transmission between markers provides automated boundary identification, eliminating the need for time-consuming manual inspection and reducing human error in ore-waste separation.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

Markers automatically transmit their location information through signal transmission without requiring external detection equipment or manual intervention. The system self-identifies boundary locations by having markers actively report their positions, enabling rapid and accurate ore body mapping.

Inventive Principle:
Principle #25Self-service

3Loss of time

If rapid boundary identification is implemented to improve extraction speed, then productivity increases, but measurement accuracy may be compromised

Engineering Contradiction:
Improvetime for boundary identificationVSAvoidmarker location determination accuracy
Core Design Contradiction:
Loss of timeVSMeasurement precision

Solution Approach 1:

The system uses periodic signal transmission between markers to continuously monitor and update boundary locations. By transmitting signals at regular intervals, the system maintains accurate real-time location data without requiring continuous manual measurement, thus achieving both speed and accuracy.

Inventive Principle:
Principle #19Periodic 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

This approach enables rapid and accurate determination of ore body boundaries post-blasting, enhancing mining efficiency by minimizing ore dilution and optimizing the separation of valuable ore from waste rock.

Implementation Method 1

transmitting signals through the ground between markers in the ground

Methodology Applied
Scientific EffectSignal transmission through ground: Conduction (electrical)

Data Source

PatentUS10123157B2Locating underground markers
Publication Date: 2018.11.06 ORICA INTERNATIONAL PTE LTD
  • US10123157B2 patent drawing
  • US10123157B2 patent drawing
  • US10123157B2 patent drawing

AI summary

A process for locating underground markers, including: transmitting signals through the ground between markers in the ground; and determining locations of the markers based on the transmitted signals.