As summer approaches, the amount of rainfall also increases. To cope with sudden flood seasons, it is extremely important to establish an effective emergency communication system promptly when floods occur. During flood situations, they have a significant impact on people's lives and work. The damage to the basic environment poses a major challenge for rescue personnel in their rescue tasks. How can we enhance the emergency rescue guarantee through a wireless emergency communication system? The wireless communication network should set up an independent emergency dedicated wireless communication network to ensure communication coverage in the water conservancy area, on-site command communication, rescue battle communication, and other rescue operation capabilities.

       In the field of water conservancy flood emergency rescue, when there is no electricity or network, the most suitable disaster communication method is the self-powered wireless communication ad hoc network equipment. The on-site network can be set up immediately and used automatically, completing the network formation automatically. It can be connected and disassembled easily, does not rely on any resources, and can win precious and rapid time for saving lives and property safety. In the emergency rescue site, applying ad hoc network equipment and technology, using the wireless broadband and narrowband integration communication technology to cover the emergency rescue site, the satellite communication network is used as the backhaul backbone channel, constructing a communication network that enables interconnection between the on-site emergency command site and various emergency rescue teams, all levels of emergency command agencies, and relevant departments, achieving two-way communication of voice, video, and data, providing emergency communication guarantee for rescue scenes in major disasters.

       Wireless ad hoc networks are a new and developing network technology in the current field of wireless communication. They are rapidly penetrating from military communication into related civilian communication fields. The wireless ad hoc network system is a distributed, decentralized, multi-hop routing, peer-to-peer IP network. Each node not only has the functions of sending and receiving data, but also has the function of relay transmission. There is no hierarchy, and as long as the connection conditions are met, it can be deployed freely and the operation is convenient. This system can provide a flexible, convenient and fast communication network. It does not require regular infrastructure support and provides multi-hop data transmission for multimedia services such as data, voice and video. On the one hand, it can avoid complex wired deployment, accelerate the construction progress and reduce the construction cost. On the other hand, by collecting data through multi-node network communication, unified access to the Internet is achieved, remote management and monitoring are realized, and the number of Internet access nodes is reduced, greatly reducing the long-term operation cost of the system.

       With the development of Mesh self-organizing network mobile communication technology, it has numerous advantages such as wirelessness, mobility, portability, high clarity, and bidirectionality, providing applications such as on-site investigation, emergency command, and mobile law enforcement for various rescue operations. To further enhance the remote visual command capabilities of rescue forces and improve the handling ability of emergencies; the emergency dispatch platform system is a system based on IP construction that supports multiple business storages such as voice, video, text messages, and message storage. It can form a "multi-terminal one-platform" prevention and control system, a "unified platform, unified communication, unified command" central management platform. By fully leveraging the development of information technology, it provides strong guarantees for disaster situation investigation, emergency rescue, and emergency response, and strives to build an emergency rescue team that can "be called out at any time, attack successfully, and win the battle".