Wireless Sensor Network for Real-Time Rock Blasting Adjustment
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Solution Overview
Problem
Current rock blasting techniques lack the ability to dynamically adjust for unforeseen geological conditions and discontinuities during the blasting process, leading to inefficient operations, potential damage, and increased environmental impact.
Innovation Solution
A wireless sensor network system that includes rock blasting sensors capable of detecting real-time parameters such as shock wave speed, pressure, and temperature, allowing for automatic adjustments to the blast timing and plan during the operation, enabling self-optimization of the blasting process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed blast plan is used based on preliminary geological assessments, then the blasting operation can be executed with a predetermined sequence and parameters, but the system cannot adapt to unforeseen geological conditions and discontinuities during the actual blasting process
Solution Approach 1:
The system performs preliminary actions by embedding sensors and communication devices in the explosive charges before blasting, pre-establishing the monitoring network and data transmission pathways so that real-time geological data can be captured and processed during the actual blasting operation without requiring complex post-blasting analysis systems
Solution Approach 2:
The system implements continuous feedback loops where sensors detect real-time parameters (shock wave propagation, rock fragmentation, vibrations) and this data is fed back to adjust subsequent detonation sequences and parameters, enabling dynamic adaptation to unexpected geological conditions while maintaining controlled system complexity through automated decision algorithms
2Ease of operation
If traditional electrical or electronic triggers are used for detonation control, then timing precision can be achieved, but the system lacks wireless communication capabilities and cannot be aborted or adjusted remotely
Solution Approach 1:
The system introduces wireless communication modules as intermediaries between the control system and explosive charges, allowing remote initiation and abort commands to be transmitted without physical connection, thereby enabling safe remote operation while maintaining reliable detonation control through multiple redundant communication channels and protocols
Solution Approach 2:
The electronic trigger system is enhanced with multi-functionality to serve both as a precise timing device for sequential detonation and as a wireless communication node for remote control, monitoring, and emergency abort capabilities, consolidating multiple functions into a single integrated system that improves both ease of operation and safety
3Productivity
If empirical formulas and geometric patterns are used for blast plan development, then the planning process can be simplified, but a large number of variables influencing rock blasting quality are ignored
Solution Approach 1:
The system replaces empirical mechanical planning methods with automated computational algorithms that process real-time sensor data to optimize blast parameters, substituting simplified geometric patterns with data-driven models that account for multiple geological variables, thereby improving fragmentation quality without sacrificing blasting efficiency through real-time adaptive control
4Manufacturing precision
If sequential detonation with time delays is used to control shock wave interference, then rock fragmentation quality can be improved, but the system cannot dynamically adjust timing based on real-time geological feedback
Solution Approach 1:
The system transforms fixed time-delay sequential detonation into a dynamic control system where inter-hole and intra-hole time delays are continuously adjusted based on real-time feedback from sensors monitoring shock wave propagation and rock response, enabling the timing sequence to adapt dynamically to actual geological conditions while maintaining optimal fragmentation quality
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 system maximizes raw material extraction while minimizing costs and environmental impact by allowing real-time adjustments to the blasting plan, reducing damage and vibrations, and improving fragmentation quality.
Implementation Method 1
The nature of the shock waves resulting from the explosion, in association with the time interval between detonations, leads to interference patterns among the shock waves
Implementation Method 2
a wireless communication device arranged to communicate with the rock blasting sensors to exchange data
Implementation Method 3
The main objective of a rock blasting operation is to maximize the extraction of raw material while minimizing the costs and the environmental impact of the operation. In general, the operation of rock blasting is performed by the detonation of chemical explosives
Data Source
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AI summary
A rock blasting method and a system of rock blasting sensors and charges which form a network for use in the mining industry. The method and the system being able to self-adjust its detonation timing sequence based on sensing the blast from a previously detonated explosive charge in the network, in order to maximize the extraction of raw material from a rock mass while minimizing the costs of operation and diminishing the environmental impact of the mining process.