Detonator Communication Filter for Noise-Resistant Signal Extraction
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Solution Overview
Problem
Existing communication systems in blasting technologies face reliability issues due to noise in the reference voltage input to detonators, affecting the accuracy of signal transmission and detonation timing.
Innovation Solution
A communication system and detonator design that includes a filter to extract a stable voltage within a reference range from a peak voltage, a control circuit to generate and transmit toggle signals, and a charging circuit to manage voltage supply, improving signal reliability by filtering noise and controlling current flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a reference voltage is input to the receiver without filtering, then the communication system can operate with simple circuitry, but noise in the reference voltage degrades signal accuracy and communication reliability
Solution Approach 1:
A filter circuit is introduced as an intermediary component between the voltage input terminal and the receiver. This filter acts as a mediator that selectively passes the reference voltage frequency while blocking noise frequencies, thereby improving communication reliability without requiring complex error correction systems or redundant communication channels
Solution Approach 2:
The filter circuit changes the frequency domain parameters of the input voltage by attenuating specific frequency components (noise) while preserving the reference voltage frequency. This parameter-based filtering approach improves signal quality without fundamentally altering the communication protocol or system architecture
2Measurement precision
If the filter extracts voltage within a reference range from peak voltage, then signal accuracy is improved, but the device complexity increases due to additional filtering components
Solution Approach 1:
The filter circuit is designed to provide selective frequency attenuation only at specific noise-prone frequency ranges, rather than uniformly processing all frequencies. This localized filtering approach achieves signal accuracy improvement while minimizing the complexity of the filter design by focusing resources only where needed
Solution Approach 2:
The filter extracts and processes only the necessary voltage components within the reference range, creating a cleaned version of the reference voltage without needing to reconstruct or heavily process the entire signal spectrum. This selective copying approach maintains signal accuracy while reducing computational and circuit complexity
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
Enhances communication reliability by filtering noise from the reference voltage, improving signal accuracy and ensuring precise detonation timing, thereby increasing the effectiveness of blasting operations.
Implementation Method 1
a filter generating a second voltage by extracting a voltage within a reference range from a peak voltage of a first voltage
Implementation Method 2
a transistor connecting a first and a second electrode in response to the first voltage supplied to a gate electrode
Data Source
AI summary
A communication system includes a transmitter and a receiver connected through a cable. The transmitter transmits a first signal to the receiver using a voltage applied to the cable. A control circuit of the receiver receives the first signal and transmitting a second signal to the transmitter using a current flowing to the cable. A charging circuit of the receiver performs a charging operation by receiving the voltage through the cable and supplying a driving voltage to the control circuit. The control circuit includes a filter generating a second voltage by extracting a voltage within a reference range from a peak voltage of a first voltage and a voltage meter extracting the first signal by measuring the second voltage.