Heterogeneous network construction and active roaming access technology in tunnel construction
Tunnel internal networking is a prerequisite for achieving intelligent construction in the tun-nel construction sector. Given the inadequacy of current single communication methods in addressing the complexity of tunnel construction equipment and the diversity of intelligent tunnel construction sys-tems,a heterogeneous network fusion networking scheme is proposed to establish a standardized and unified data link,encompassing backbone networks and various branch networks. Firstly,this paper proposes a backbone network construction scheme based on the ray tracing method,determining the deployment and installation locations of relay points based on the correspondence between field strength and bandwidth. To mitigate the resource consumption issue between wireless Mesh network nodes,a self-healing network deployment scheme in a one-dimensional linear tunnel scenario is pro-posed. Secondly,a dynamic switching method for heterogeneous networks based on the microservices approach is introduced,and an integrated terminal for perception and computation is designed. Field measurements are conducted for high-frequency data and video data transmission at the perception end. Fi-nally,addressing the issue of mobile terminals' inability to timely switch roaming in the tunnel network and prolonged periods of low-efficiency connection,an adaptive active roaming switching algorithm is pro-posed by revealing the signal propagation law between different access points in a one-dimensional tunnel scenario. A two-way communication experiment is conducted at the construction site for verification. Ex-perimental results demonstrate that compared to the communication bandwidth before applying the pro-posed roaming switching algorithm,the forward and reverse communication bandwidths increase by 7.82％ and 40.75％,respectively,indicating the effectiveness and practicality of the algorithm. The re-search results can provide valuable insights for achieving smart tunnel construction.
heterogeneous networkradio waveactive roamingtunnel networkingtunnel construction
万方数据
维普
