基于微控制器的钻杆扭矩测量及其超声-蓝牙分级无线传输系统

Torque Wireless Measurement System Via Ultrasonic Waves and Bluetooth Technology

为实时测量狭窄金属钻杆钻头的扭矩信息,基于微控制器设计了钻杆底部的扭矩数据采集终端,实现扭矩信号数字化并将数据OOK调制于超声波,利用超声波实现钻杆内的数据无线传输,解决了钻杆内电磁波衰减严重的问题。在钻杆顶部设置数据接收终端,接收超声信号并通过蓝牙链路将数据无线发送至上位机。上位PC机通过蓝牙适配器无线接收超声信号并解调恢复扭矩数据。这种联合超声-蓝牙的分级无线技术为狭窄金属屏蔽管内的无线数据传输提供了一种新的思路。

Using ultrasonic waves as the wireless data transmission carrier in the thin metal drilling pipes,this paper presents a torque wireless measurement system based on ultrasonic waves and Bluetooth technology.The whole system includes a data collector,a data receiver and a monitoring system on a PC.The data collector digitizes the torque signal and modulates the data on ultrasonic waves via OOK.The Data receiver collects the sensed ultrasonic signals and transmits the data to PC via blue-tooth wireless links.The morning PC receives the ultrasonic data and demodulates the torque data.This paper provides a new idea for wireless data transmission in the thin metal drilling pipes where electromagnetic waves are attenuated seriously.