Wireless Detonator System Using Ultralow Frequency Magnetic Signals
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Solution Overview
Problem
Existing wireless detonator systems face challenges in reliable and secure data transfer and device management, particularly in environments like rock formations, where magnetic interference and long cable lengths complicate communication.
Innovation Solution
A wireless detonator system utilizing ultralow frequency magnetic signals for communication between a blast control unit, transmitter/receiver assemblies, and detonators, along with a mobile tagger for bi-directional communication, and RS-485 for reliable communication between the blast control unit and transmitter/receiver assemblies, ensuring secure and efficient data transfer and device management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional wireless communication is used in detonator systems, then data transfer can be achieved, but magnetic interference in rock formations degrades communication reliability
Solution Approach 1:
The patent changes the frequency parameter of electromagnetic waves to ultralow frequency (ULF) range, which has the ability to penetrate rock formations and is less susceptible to magnetic interference. This parameter change resolves the contradiction by maintaining communication reliability in magnetically noisy environments while achieving reliable data transfer through rock formations.
Solution Approach 2:
The patent replaces conventional radio frequency wireless communication with ultralow frequency magnetic signal transmission. This substitution uses magnetic fields at ULF frequencies that can penetrate conductive and magnetic materials like rock formations, overcoming the harmful effects of magnetic interference that plague conventional RF systems in such environments.
2Ease of operation
If long cable lengths are used to connect detonators, then device management can be achieved, but cable complexity and susceptibility to interference increase
Solution Approach 1:
The patent substitutes physical cable connections with wireless ultralow frequency magnetic signal transmission. This eliminates the need for long cables and complex wiring, reducing device complexity while maintaining the ability to manage and communicate with detonators. The wireless approach removes cables as the source of interference susceptibility.
Solution Approach 2:
The patent extracts and removes the cable wiring system from the detonator management architecture. By taking out the physical cable infrastructure and replacing it with wireless ULF communication, the system eliminates cable-related complexity and interference problems while preserving device management capabilities.
3Reliability
If secure data transfer is implemented in detonator systems, then authorization control is improved, but communication protocol complexity increases
Solution Approach 1:
The patent implements preliminary authorization verification through the tagger device before detonator deployment and operation. The tagger communicates with the blast control unit to verify operator credentials and authorization levels in advance. This preliminary action ensures security requirements are met before critical operations, maintaining security without requiring complex real-time protocol verification.
Solution Approach 2:
The patent introduces a tagger device as an intermediary between the operator and the blast control unit. The tagger handles authorization verification and communication protocols, mediating security checks and simplifying the interaction between operators and the control system. This intermediary approach maintains security while reducing the complexity burden on the main communication protocol.
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
The system enables reliable and secure communication and control of detonators, even in challenging environments, with bi-directional data transfer and authorization mechanisms, ensuring accurate and authorized detonation operations.
Implementation Method 1
The ultralow frequency communication from the transmitter in the assembly is preferably effected using a magnetic signal
Implementation Method 2
in response to an incident signal detected by the antenna, energy is drawn from the incident signal
Data Source
AI summary
A wireless detonator system wherein a blast control unit communicates bidirectionally with at least one tagger and with detonators, prior to deployment thereof, using a NFC technique, and a transmitter/receiver assembly communicates with each detonator atan ultralow frequency.