The pioneer of wireless ad hoc network technology - AdHoc networks first emerged in the 1970s and were mainly used for military communication. AdHoc networks are a special type of wireless communication network that can quickly and automatically form a network without relying on any pre-established network facilities. They have strong resilience and flexibility and are of great significance for network communication in special scenarios such as emergency rescue, field research, oil and mining industries, and military operations.

       The early applications of AdHoc networks were mainly in the military communication field, aiming to study how to efficiently and reliably transmit data in multi-hop wireless network environments. With the deepening of research and the advancement of information technology, the applications of AdHoc networks gradually shifted to the civilian and commercial sectors, and are widely used in network architecture, cross-layer design, service discovery, network interconnection, and information security transmission.

       In response to practical application requirements, AdHoc network technology has further evolved into Wireless Sensor Network (WSN) and Wireless Mesh Network (WMN). And the Shenzhou MESH wireless self-organizing network system is a mobile broadband multimedia communication system that is designed based on Wireless Mesh Network (WMN) and adopts a completely new "wireless grid network" concept.

       The MESH wireless ad hoc network system of Guo Qian enables all nodes to achieve real-time interaction of multiple multimedia information such as voice, data, and images under non-line-of-sight and rapid movement conditions. By utilizing the distributed network architecture of the decentralized self-organizing network, this system can realize the real-time exchange of various multimedia information. At the same time, the system supports any network topology structure. Each node device can move randomly and quickly, and the system topology can change and update rapidly without affecting the system transmission. The overall system is easy to deploy, flexible to use, simple to operate, and convenient to maintain.

System advantages:

① Without a central network, it can be flexibly deployed as needed. It does not require infrastructure such as a computer room or a transmission network. It can be set up independently as a network and can be networked through multiple hops, thereby expanding the coverage area.

② The private network is exclusively dedicated, and there are no any link fees or traffic charges for the wireless transmission link.

③ Support hierarchical grouping and roaming networking to achieve the expansion of system communication capacity.

④ It has the function of frequency hopping, which effectively enhances the anti-interference and anti-tracking capabilities; the introduction of digital filtering function effectively suppresses remote interference. At the same time, it adopts the ARQ transmission mechanism, reducing the data transmission loss rate and improving the data transmission reliability.

⑤ Data transmission supports the seamless transmission of various business data without any differences. It has broadband transmission capabilities and can support multimedia services such as clear voice, broadband data, and high-definition video.

⑥ The image has the ability to adapt and adjust, effectively ensuring the continuity and smoothness of data, videos, and other business operations.

⑦ Using COFDM technology, it has strong anti-multipath performance.

⑧ Using dual antennas, antenna 1 and antenna 2 support TDD dual transmission and dual reception, and can achieve transmission/reception diversity.

       In the face of sudden disasters, the Tuqian MESH wireless self-organizing network system will quickly establish a highly resilient emergency rescue network at the very first moment of the disaster occurrence. It will coordinate various rescue groups and orderly deploy the emergency communication network to monitor various situations in the affected area in real time, and promptly notify the on-site personnel and report the relevant information to the command center.

       With these advantages, the Tucheng MESH wireless ad hoc network system plays a significant role in emergency communication scenarios. It can meet various complex communication needs such as security patrol for large-scale events, urban counter-terrorism and stability maintenance command, emergency rescue command and dispatch, fire emergency communication command, and communication between ship formations on land and at sea.