Rock Drill Display System for Accurate Hole Alignment
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Solution Overview
Problem
Current rock-drilling technologies face challenges in accurately displaying and aligning planned and actual holes on a 2D projection, leading to misconceptions about hole alignment and depth, especially for users without trigonometric knowledge, due to simplifications like fixed drilling lengths and misleading parallel projections.
Innovation Solution
The method involves displaying the end points of both planned and actual holes on the same projection plane with a common reference depth, ensuring that the drill rod is positioned such that the projections of the target and planned holes are parallel and the starting points are aligned, allowing for accurate drilling of holes parallel to the planned ones and ensuring the actual end point corresponds to the planned end point.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a fixed drilling length is used for projection, then the positioning of the boom is simplified, but the relationships of the end points of the holes do not correspond to the actual situation
Solution Approach 1:
The patent transitions from 2D projection to 3D spatial representation by displaying the actual end point coordinates (x, y, z) of drilled holes alongside the planned hole parameters. This dimensional enhancement allows users to visualize the true spatial relationship between planned and actual hole end points, resolving the distortion inherent in fixed-length 2D projections while maintaining operational simplicity.
2Measurement precision
If a projection according to the actual drilling length is used, then the monitoring of drilling is improved, but the planned or actual holes are not comparable and holes of different lengths and different angles may have completely similar projections
Solution Approach 1:
The patent standardizes the projection basis by using a common reference depth (round length) for all hole projections, regardless of their actual drilled lengths. This parameter standardization enables direct comparison between different holes while still displaying actual drilling progress, preventing the information loss that occurs when varying projection lengths are used.
3Ease of operation
If parallel and equal-length projection lines are displayed, then the visual presentation is simplified, but it does not guarantee that the planned and actual holes are in fact parallel
Solution Approach 1:
The patent replaces the misleading visual mechanism of parallel projection lines with a direct numerical coordinate display system. By showing the actual end point coordinates and calculating the deviation from the planned hole, the system provides reliable parallelism information without relying on potentially deceptive visual projections, substituting the visual representation mechanism with a data-based verification mechanism.
4Ease of operation
If the hole and end points of boom symbols meet on the display, then the alignment appears correct, but the actual and intended end points of the hole may not meet
Solution Approach 1:
The patent implements a feedback mechanism by displaying the actual end point coordinates of drilled holes and comparing them with the planned hole parameters. The system provides deviation information that feeds back to the operator, allowing real-time correction of drilling direction and depth to ensure the actual end point matches the intended end point, rather than relying on potentially misleading symbolic representations.
Data Source
Figure 1~2b
Figure 3a~4f
AI summary
The invention relates to a method and equipment for displaying holes to be drilled when drilling holes into rock with a rock-drilling rig (1) having control equipment and a display belonging thereto and measuring means for defining the direction and position of a drill rod, by using a pre-designed drilling plan defined in a three-dimensional coordinate system, in which a starting point (19a to 21 a) and end point (19b to 21 b) is defined for each hole to be drilled. In the invention, a base plane (18) running through the end point (19b to 21 b) of the hole and parallel to the projection plane is defined for each hole (19 to 21), and a projection of the intersection of a hole or its extension created when drilling in accordance with the current location of the drill rod and the defined base plane is displayed with a graphical location symbol on the projection plane.