基于WSN的分布式节点地震仪分层通信网络

Hierarchical communication networks based on WSN in distributed cable-less seismic acquisition system

针对深部探测对节点地震仪器提出的质量监控和数据现场回收要求,本文设计了基于WSN的三维地震勘探分层通信网络.分层网络由骨干网和多跳网两个网络层构成:骨干网使用LTE技术与监控中心进行数据交换,并实现了链路带宽的合理分配与大范围的信号覆盖;多跳网结合地震勘探的特点,使用私有路由协议和数据传输协议完成了仪器的组网与数据的接力式传输.测试结果验证了组网协议的设计正确性与数据传输的稳定性,且网络总体性能满足实际应用的需求.数据多跳传输实现了无线局域网技术的远程访问,从而提高了勘探作业效率.

Focusing on the requirements of deep exploration on quality monitoring and data collection in cable-less seismic acquisition systems, this paper designed a hierarchical communication networks based on WSN （Wireless Sensor Networks） for 3D seismic exploration. The hierarchical networks consist of two network layers-backbone networks and multi-hop networks. The backbone networks realized proper distribution of link bandwidth and large range of signal coverage by communicating with monitoring center via LTE （Long Term Evolution） technology. The multi-hop networks, combined with the seismic exploration features, achieved interconnection of instruments and data relay transmission via private routing protocol and data transmission protocol. The test results verified the correctness of the networking protocols and the stability of data transmissions. Also, as results show, the overall networks performance can satisfy the requirements of practical applications. The multi-hop data transmission networks achieved remote access of WLAN （Wireless Local Area Network） technology, which also improved the working efficiency of exploration.