Borehole MI Blasting Links for Reliable Through-Earth Feedback
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Solution Overview
Problem
Current wireless initiation systems for commercial blasting, such as those using magnetic induction (MI) signals, face limitations in providing sufficient feedback and communication capabilities, particularly in environments where signals need to traverse obstructed or buried media like rock formations.
Innovation Solution
A system employing wireless blasting-related devices with magnetometers for through-the-earth (TTE) MI communication, utilizing both device-based and vehicle-based MI signal sources and receivers, enabling bidirectional communication via near-field and transition region signal exchange, with coil or loop antennas and specific frequency bands to ensure reliable signal transmission across distances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If wireless initiation systems use magnetic induction signals for long-distance communication through earth, then communication distance is improved, but signal reliability deteriorates due to obstruction by physical media
Solution Approach 1:
The patent introduces vehicle-based MI signal receivers as intermediary components that collect signals from multiple device-based transmitters at different locations. This distributed intermediary approach allows the system to achieve reliable long-distance communication through the earth by aggregating signals from multiple intermediate points rather than relying on a single direct transmission path.
Solution Approach 2:
The communication system is segmented into multiple device-based MI signal transmitters distributed at different locations within the blast area, each communicating with vehicle-based receivers. This segmentation divides the long-distance communication problem into multiple shorter, more reliable transmission segments, improving overall signal reliability while maintaining extended communication coverage.
2Ease of operation
If wireless blasting devices are deployed within boreholes in physical media, then operational safety is improved, but feedback capability deteriorates due to limited communication information
Solution Approach 1:
The patent implements bidirectional magnetic induction communication between device-based transmitters in boreholes and vehicle-based receivers, enabling real-time feedback on device status, location, and operational parameters. This feedback mechanism allows operators to monitor the state of blasting devices remotely while maintaining safety by keeping devices underground, thus resolving the contradiction between safety and information availability.
3Reliability
If device-based MI signal sources use coil or loop antennas for TTE communication, then communication effectiveness is improved, but device complexity increases
Solution Approach 1:
The device-based MI signal sources are designed with coil or loop antennas that serve multiple functions: transmitting magnetic induction signals for communication, providing electromagnetic coupling for power transfer, and enabling bidirectional signal exchange. This multi-functionality reduces the need for separate components, thereby limiting the increase in device complexity while maintaining effective TTE communication.
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 enhances communication reliability and feedback in commercial blasting operations by enabling effective bidirectional MI communication through obstructive media, improving safety and operational efficiency by ensuring accurate control and monitoring of initiation devices and environmental parameters.
Implementation Method 1
a device-based magnetic induction (MI) signal receiver with a magnetometer configured for through the earth (TTE) MI communication
Implementation Method 2
enabling effective bidirectional MI communication through obstructive media
Data Source
AI summary
Disclosed is a system for assisting blasting. The system includes at least one wireless blasting-related device that is deployable or deployed proximate to or within a portion of physical media intended to be blasted as part of a commercial blasting operation. The blasting-related device includes a device-based magnetic induction (MI) signal receiver with a magnetometer configured for through the earth (TTE) MI communication, and the blasting-related device includes a device-based MI signal source with a device-based antenna configured for TTE MI communication. The device-based MI signal source is configured to communicate with a vehicle-based MI signal receiver in a blast support vehicle that includes a set of vehicle-based magnetometers.