基于WLAN的无缆地震仪无线通信系统设计  

The design of wireless communication system based on WLAN for wireless seismometer

作　　者：徐克彬 陈祖斌[2] 冉令刚 刘玉海 任勇强 

机构地区：[1]中国石油集团渤海钻探井下作业公司,河北任丘062552 [2]国家地球物理探测仪器工程技术研究中心(吉林大学)

出　　处：《物探装备》2017年第3期180-183,共4页Equipment for Geophysical Prospecting

摘　　要：微地震实时监测已成为现阶段水力压裂工作的新目标,而无缆地震仪由于其便携性,已成为新的压裂监测仪器的发展方向。但传统的无缆地震仪由于受制于数据传输速率较慢以及数据传输距离较短,已无法适应实时微地震监测任务。为克服以上问题,提出了一种新的WLAN的无缆地震仪无线通信传输装置,该装置是由AT91RM9200经物理层接口芯、无线网络处理单元、无线收发器分别连接功率放大器和低噪声放大器,功率放大器和低噪声放大器分别经收发切换器与天线连接,收发切换器经无线收发器与功率放大器连接构成。其通信频段为5.8GHz,与原有的2.4GHz通信频段相比,距离由原有的几十米到300m提高至1000m左右,速率也由原来的300kb/s^400kb/s提高至现在的2Mb/s^2.5Mb/s。满足了实际压裂监测数据实时回收的需求。Because Of its portability, the wireless seismometer has become the developing direction of new seismic exploration instrument, however, due to its lack of real--time monitoring records and commonly used on-site quality control measures, the actual project has been greatly restricted. In order to overcome the above problems, a new da- ta transmission device of non-cable WLAN is proposed, which is made up of AT91RM9200 physical layer interface core, wireless network processing unit, a radio transceiver connected with a power amplifier and a low noise ampli- fier respectively, power amplifier and low noise amplifier connected with the antenna through the transceiver switchrespectively, and the wireless transceiver switcher connected with power amplifier. Compared with the origi- nal 2.4GHz communication module of the wirelessstorage type seismometer, the distance of wireless communication- can be improved from 300m to 1000m and the speed of wireless communicationcan be enhanced from 300~ 400kb/s to 2~2.SMb/s, which satisfied the needs of real-time data recovery in the field without non-cable seismic data.

关 键 词：水力压裂实时监测 无缆地震仪 无线通信 

分 类 号：P631.43[天文地球—地质矿产勘探]