With the continuous expansion of the scale of domestic tunnel construction and operation mileage, tunnel safety and emergency rescue have received increasing social attention. Tunnels are characterized by small spaces and complex environments. Once an accident occurs, existing communication methods may fail, resulting in a lack of emergency communication and hindering smooth rescue operations.

Finding solutions for the scenario, In response to the characteristics of closed tunnel spaces and difficult information transmission, Far East Communications uses emergency communication command, broadband trunking, multi-base station networking, indoor high-precision positioning, and satellite communication technologies to launch a tunnel emergency communication solution.
 

The scheme equipment is easy to carry and flexible to deploy, adapts to the tunnel environment, and can quickly complete communication setup under extreme conditions such as no network and no electricity in the tunnel, establishing audio/video and data transmission channels between the tunnel front line, the on-site command center, and the rear command center, supporting on-site unmanned exploration, data acquisition, rescue personnel location monitoring, on-site emergency command, and rear collaborative command and other functions, facilitating the concerted efforts of various emergency rescue forces and ensuring efficient and smooth communication for tunnel emergency rescue.

1. Build a solid emergency communication link and refuse "island-style" operations
Poor communication within the tunnel can easily lead to the loss of contact between rescue personnel inside the tunnel and the outside world. The tunnel emergency communication solution uses a fusion of portable stations to build a backbone transmission network and a data access network, ensuring smooth communication between the rescue site and the command center, allowing leaders and experts outside the tunnel to "see and hear" the situation inside the tunnel.

2. Three-dimensional presentation of rescue resources, accurate and efficient command and dispatch
The tunnel environment has a relatively small space. After an accident, the internal situation is unclear, greatly increasing the difficulty of rescue. The tunnel emergency communication solution supports access to various tunnel sensing devices and video surveillance equipment, real-time monitoring of changes in the tunnel situation, and combined with high-precision positioning functions, presents rescue personnel and equipment in a three-dimensional model, providing strong support for command center decision-making, resource allocation, and collaborative operations.

3. Lightweight and portable main equipment, ready to use and quick response
The tunnel environment is complex, and carrying heavy equipment is inconvenient, which will greatly affect the emergency rescue work. The tunnel emergency communication solution is oriented towards practical applications, with lightweight and portable main equipment that can be carried by a single person; the key system can be started within 3 minutes, quickly building an emergency rescue "lifeline" to meet the rapid response requirements of emergencies.

4. The emergency network is flexible and resistant to destruction, suitable for use in harsh environments
After a tunnel accident, there is often a lot of rubble and sand, and ordinary equipment is prone to malfunction and failure, resulting in serious equipment wear and tear. The front-end equipment of the tunnel emergency communication solution meets IP67 and above protection levels, and the intercom terminal meets IP68 protection levels. It can maintain good performance under temperature fluctuations and strong vibrations, ensuring the resilience and resistance to destruction of the emergency communication network, making it more suitable for communication needs in harsh tunnel environments.

Far East Communications' tunnel emergency communication solution assists in tunnel emergency rescue, supporting the rescue process to be managed in a more refined and dynamic way, improving the informatization level of tunnel rescue, improving the efficiency of emergency repair and rescue, and achieving precise rescue.