AdHoc network, the pioneer of wireless AD hoc network technology, first appeared in the 1970s and is mainly used for military communications. AdHoc network is a special wireless communication network, which can be quickly and automatically networked without relying on any pre-set network facilities, and has strong resistance and flexibility, which is of great significance for network communication in special occasions such as rescue and disaster relief, field investigation, oil field, mining, and military.
In the early days, AdHoc networks were mainly used in the field of military communications to study how to ensure efficient and reliable data transmission in a multi-hop wireless network environment. With the deepening of research and the progress of information technology, the application of AdHoc network has gradually turned to civil and commercial fields, and is widely used in network architecture, cross-layer design, service discovery, network interconnection and information security transmission.
For practical application requirements, AdHoc network technology is further derived from wireless sensor network WSN and wireless mesh network WMN. Shenfang MESH wireless AD hoc network system is a mobile broadband multimedia communication system based on wireless mesh network WMN, which adopts the new concept of "wireless mesh network".
Under the condition of non-line-of-sight and fast movement, all nodes of the MESH wireless AD hoc network can realize real-time interaction of multi-channel multimedia information such as voice, data and image by using the distributed network architecture without center AD hoc network. At the same time, the system supports any network topology. Each node device can move randomly and quickly, and the system topology can change and update quickly without affecting system transmission. The overall system deployment is convenient, flexible, easy to operate, and easy to maintain.
In the face of sudden disasters, the MESH wireless AD hoc network will quickly build a highly resistant emergency rescue network at the first time of the disaster, coordinate the rescue groups, orderly deploy the emergency communication network to monitor various situations in the incident area in real time, and timely notify the scene personnel and report the relevant information to the command center.
With the above advantages, MESH wireless AD hoc network system plays an important role in emergency communication. It meets a variety of complex communication needs, such as security patrol for large-scale events, urban anti-terrorism and stability maintenance command, rescue command and dispatch, fire emergency communication command, and shore to sea communication of ship formations.
