With the continuous progress of the society, the needs of site safety and daily operation and maintenance management of underground passage facilities are increasing day by day, and the supervision units have higher and higher requirements for safety and management. In order to ensure the safe operation of equipment and facilities in underground tunnels and pipeline corridors and prevent accidents, we cooperate with operation and maintenance units to make the following emergency networking wireless communication scheme, which can improve the daily operation and maintenance management of supervision units and the rapid response and disposal of emergencies.

（The picture is from the Internet）

In the underground tunnel and tunnel gallery scene, due to the particularity of its environment, it is extremely difficult to control the daily operation and maintenance management of the site and the emergency treatment of emergencies. The wireless ad-hoc network transmission equipment of Suntor, with its own advantages of flexibility, expansibility and high reliability, can play a very high use value in the tunnel and tunnel gallery scene. For the functional management department to solve the imminent difficult problem of supervision is not in place.

（The picture is from the Internet）

When an emergency occurs on the site, the rescue personnel arrive at the rescue site. In view of the complex and harsh environment of the underground pipe corridor site, they can carry portable fast networking mesh equipment into the tunnel. According to the site environment and networking requirements, they can flexibly deploy the communication scheme to ensure that the emergency wireless broadband private network can be built in the shortest time, and the emergency wireless broadband private network can be started immediately. Secondly, rescue workers can use the multi-hop MESH wireless broadband network built at the site, with the narrowband digital cluster private network integration and communication, to meet the needs of the underground and above-ground disaster site, the depth of the building and the external site, barriers, shelter and block, and other situations of the voice group call, convenient for field commanders to give rescue orders in time, and efficient cooperation between rescue team members.

The first-line rescue personnel in the tunnel transmit the HD video information collected at the scene back to the ground site temporary command site through the ad-hoc network node device multi-hop relay, which is convenient for the ground commanders to control the actual casualties at the disaster site, formulate reasonable plans, and scientifically analyze and rescue.

At the same time, the field command vehicle can also realize interconnection and communication with the command center of the rear headquarters through 4G, 5G and satellite equipment for unified command and dispatch.