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时间域电磁方法是目前先进的近地探测的方法之一,已广泛的应用于矿藏勘探、航空和海洋及近地矿井等勘探领域。对比目前国内外同类仪器的探测性能,国内基于时间域的电磁系统主要存在电磁兼容性差、通信技术相对落后(速度慢)、功率小、运行稳定性及可靠性较差等问题。本文选取了用于该系统的USB数据传输技术的应用为研究重点,从USB技术的传输结构出发设计了一种应用于时间域电磁法系统中的高速USB通讯体系。通过仿真实验分析证明该体系基本满足了系统高速数据传输的需要。
Time-domain electromagnetic method is one of the most advanced methods of near-earth exploration, and has been widely used in the field of mineral exploration, aviation and marine and near-surface mine exploration. Compared with the detection performance of similar instruments at home and abroad, the electromagnetic system based on time domain in China mainly has the problems of poor electromagnetic compatibility, relatively backward communication technology (slow speed), low power, poor operation stability and reliability. This paper chooses the application of USB data transmission technology for the system as the research focus, and designs a high-speed USB communication system used in the time domain electromagnetic system from the transmission structure of USB technology. Simulation results show that the system basically meets the needs of high-speed data transmission system.