Electronic Detonator Frequency Correction via Oscillator Shift Analysis
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Solution Overview
Problem
Electronic detonators face challenges in maintaining stable communication frequencies due to temperature variations, which affect the oscillation frequency of the oscillator mounted in the MCU, leading to difficulties in normal communication.
Innovation Solution
An apparatus and method that corrects the communication frequency of an electronic detonator by receiving communication packets from a main control device, determining the oscillation frequency of the oscillator in the MCU, and analyzing the packets by correcting any shifts in the determined frequency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an oscillator mounted inside the MCU is used to reduce cost and improve shock resistance, then device cost and shock resistance are improved, but frequency stability deteriorates due to large temperature variations
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the communication frequency based on the detected oscillator frequency. The system measures the actual oscillation frequency of the MCU's internal oscillator and modifies the communication packet transmission frequency accordingly, transforming the communication system from a fixed-frequency to an adaptive-frequency system that compensates for temperature-induced frequency drift.
2Device complexity
If communication is performed at a fixed preset frequency, then device complexity is reduced, but communication reliability deteriorates when oscillator frequency shifts due to temperature changes
Solution Approach 1:
The patent implements feedback by measuring the actual oscillation frequency of the MCU's internal oscillator and using this information to adjust the communication frequency. The system continuously monitors the oscillator's performance and modifies the communication packet transmission rate accordingly, creating a closed-loop control system that maintains communication reliability despite temperature variations.
Data Source
AI summary
Proposed are an apparatus and a method for correcting a communication frequency of an electronic detonator, and the apparatus includes a communication packet reception part configured to receive communication packets generated at a preset frequency transmitted from a main control device, an oscillation frequency determination part configured to determine an oscillation frequency of an oscillator mounted in an MCU of an electronic detonator by referring to received communication packets, and an oscillation frequency correction part configured to analyze the communication packets by correcting a shift of a determined oscillation frequency.