Three-dimensional video return system based on wireless ad hoc network

Abstract

The invention discloses a three-dimensional video return system based on a wireless ad hoc network. The three-dimensional video return system comprises a data acquisition layer, a network transmissionlayer and an application layer; the data acquisition layer completes acquisition of on-site audio and video data, and completes transmission of the data to the application layer through the network transmission layer; the data acquisition layer comprises a ground fixed node, a ground maneuvering node and an air mobile node, and realizes real-time acquisition of video data in a wide area; data transmission of the network transmission layer is completed by wireless ad hoc network equipment. The ad hoc network technology of the system has the remarkable technical characteristics of self-organization, self-healing, automatic transmission path selection, multi-hop transmission, high bandwidth, high-speed movement support, multimedia service transmission and the like; according to the ad hoc network, a packet switching mechanism is adopted for network information exchange, each user terminal has two functions of a terminal and a host, the remaining communication capacity can be maintained after part of communication networks are damaged, and the system has high robustness and survivability.

Description

technical field [0001] The invention relates to a three-dimensional video return system based on a wireless ad hoc network, which is used for three-dimensional video data return. Background technique [0002] The video return system uses network cameras (bolt cameras, ball cameras, etc.) to complete the collection of on-site audio and video data; completes data transmission through traditional communication methods such as optical fiber links, Ethernet, and wireless bridges; the monitoring center uses storage devices to store data. Store and preview in real time through the display control device. The existing video return system has the following problems: [0003] 1> The construction is complex, the environment adaptability is weak, and it needs to rely on infrastructure. [0004] The existing video backhaul system needs to rely on fixed infrastructure to complete the construction of the network system, such as: fiber optic or Ethernet lines need to be laid in advance...

AI Technical Summary

Problems solved by technology

[0005] 2> Poor invulnerability, difficult to debug and difficult to maintain

[0006] Existing video backhaul systems based on traditional communication methods such as optical fiber links, Ethernet, and wireless bridges, once the line or infrastructure fails, the entire system will not be able to operate normally

For the specific location and cause of the fault, it needs to be checked step by step in detail, and the maintenance work is quite complicated and difficult

[0007] 3> Low mobility, limited monitoring range, single structure

[0008] The existing video return system based on optical fiber link and Ethernet communication is limited by the line construction, which belongs to fixed installation and has no mobility; the antenna of the wireless bridge equipment must be placed in a relatively directional position, which can only meet the needs of relatively fixed positions between devices. Network transmission, mobility is extremely low; the existing system mainly uses fixed-installed video surveillance cameras to complete the collection of video signals, the monitoring range of a single camera is limited, and it is impossible to form a three-dimensional and all-round monitoring system

[0009] 4> Poor expandability

[0010] When the existing video backhaul system based on optical fiber link and Ethernet communication mode is expanded, the infrastructure needs to be reconstructed and matched, and the project volume is relatively large; when the video backhaul system based on the wireless bridge is expanded, complex work is required. network pairing

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