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Seven: mesh features
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First, Mesh self-organizing network introduction
A wireless mesh network (wireless mesh network) is a completely different network than a conventional wireless network. The Mesh ad hoc network does not depend on the preset infrastructure, and has the characteristics of temporary networking, rapid deployment, no control center, and strong invulnerability. In the traditional wireless access technology, a point-to-point or point-to-multipoint topology is mainly used. Generally, there is a central node in the topology, and the central node is connected to each wireless terminal through a single-hop wireless link to control access of each wireless terminal to the wireless network; at the same time, it is connected to the wired backbone through a wired link. The connection to the backbone network. In the wireless Mesh network, the mesh Mesh topology is a multi-point to multi-point network topology. In this Mesh network structure, each network node is connected in a wireless multi-hop manner through neighboring other network nodes to implement self-association of the network.
Second, Mesh self-organizing network advantage
In the design of many communication systems, due to environmental constraints, design requirements, and actual applications. It is not possible to transmit signals such as fiber or cable, or the scenario-limited carrier network cannot support it enough. How to easily and quickly establish a wireless signal link to achieve data transmission is a requirement that many users hope to achieve.
Mesh self-organizing network equipment can quickly build its own wireless data transmission network through the unique functions of network self-healing, path selection, network load balancing, etc., under the premise of satisfying the transmission conditions. , to achieve video, voice, data, control and other signal transmission.
Third, why choose Mesh self-organizing network
The wireless Mesh network can effectively solve the problem of lack of wired access or transmission of signals in an environment where the operator's network is insufficiently supported. The wireless Mesh network solution is based on a wireless Mesh ad hoc network, wireless hardware and software technology and an industry wireless network system.
Mesh network is based on 802.11n ultra-high-bandwidth Hopping. It can select single-frequency or dual-frequency different modes according to needs. Intelligent traffic grooming in multi-gateway Mesh network, intelligent load balancing, dual-frequency mode supports high-speed roaming and ad hoc network dual mode. The Mesh self-organizing network wireless device under the Mesh architecture has the functions of fast and flexible networking, network self-healing repair, etc., and can quickly establish a wireless network to support data transmission in a short time.
Four: Mesh network features
1. Flexible networking: In the wireless Mesh network, the MG gateway needs to access the wired network. The external APs in the remaining MAP modes do not need to use the network cable. The MAP access terminal can be installed according to the requirements under the condition that the transmission requirements are met.
2, cost-effective: In the wireless Mesh network, only MG needs to use the network cable to connect to the network, other devices can access the network through wireless connection, reducing the overall installation time cost.
3, a wide range of applications: wireless Mesh network according to the characteristics of the device itself, support point-to-point, point-to-multipoint, roaming, Mesh self-organizing network, can be widely used in security, performance, large-scale activities, mining areas, drones, robots, pipelines, Monitoring of various fixed points and moving points in large industrial areas, roads, power plants, electric power, fire protection, vehicles, ships, etc.
4. Self-healing of the network: If a MAP node in the Mesh network fails, other MAP network nodes near the faulty node will automatically search and calculate to find a suitable path to send data to the wired gateway node through its other MAP node path.
5. Scalability: MAP devices in wireless Mesh networks can be wirelessly sensed and automatically connected to nearby MAP points. If you want to add MAP points in the network, simply install the new nodes in the appropriate location. The corresponding parameters can be.
Five: Mesh wireless network networking principle
Mesh single frequency (self-organizing network)
The mode is a single-frequency wireless mode, and the MG accesses the background wired network. All wireless devices in the Mesh network use the same frequency and channel to ensure mutual communication. The mobile terminal communicates with the nearest MAP node, and the MAP establishes a communication link between each other to deliver the terminal data to the MG gateway wired node.
Mesh dual-frequency network (roaming and ad hoc networks)
Dual-frequency Mesh self-organizing network equipment (supporting 2.4/5.8G dual-band), 2.4G radio support fast roaming switching function, 5.8G radio support no center self-organizing network link, mobile terminal equipped with 2.4G fast roaming equipment, In the case of meeting the signal transmission requirements, the terminal implements 2.4G high-speed non-inductive roaming switching transmission between the Mesh network nodes, and the Mesh node and the Mesh gateway implement the group networking to realize signal return to the central equipment room. Ont-family: Microsoft Yahoo'>Mesh dual-band network (roaming and ad hoc networks)
Six: Mesh ad hoc network application scenario
Mesh self-organizing network equipment is mainly characterized by flexible deployment and rapid network establishment. At the beginning of the scheme design, it should be combined with the transmission environment, distance, bandwidth and other requirements of the site, and combined with the characteristics of Mesh networking transmission. Plan and design the corresponding plan after the integration.