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Anonymous users2024-02-06The mesh shape is more commonly used. A star network communicates with one coordinator and multiple terminals, and there is no routing; The tree structure network is a "star network" that coordinates with a long distance between the terminal and needs to be routed. In a mesh network, coordinators, routers, and terminals can communicate directly, and of course, you need to know the short address of the destination.
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Anonymous users2024-02-05There are three main topologies of Zigbee networks: mesh, star, and composite.
1.A mesh network is generally a network formed by several FFDs connected together, and there is complete peer-to-peer communication between them, and each node can communicate with other nodes within its wireless communication range.
2.A star network is a network composed of a PAN coordination point and one or more end nodes, the PAN coordination point must be FFD, which is responsible for initiating, establishing and managing the entire network, and the other nodes, generally RFD, are distributed within the coverage area of the PAN coordination point and communicate directly with the PAN coordination point. Star nets are usually used when the number of nodes is small.
In the composite network, the information collected by the terminal node is first transmitted to the coordination point in the same subnet, and then transmitted to the PAN coordination point of the upper layer of the network through the network joint, and the composite network is suitable for the network with large coverage.
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Anonymous users2024-02-04Zigbee nodes can be used to form a mesh network, set a zigbee node as the network coordinator, and each other zigbee node can be used as a routing node, or it can be set as a terminal node but lose the routing function.
Since Zigbee is generally transmitted in frequency bands, the transmission distance and penetration in its practical application are very poor, and it can only transmit tens of meters to hundreds of meters. Xiamen, the company's WBEE products use the 433M frequency band transmission, and the actual transmission distance can reach 4-6km. With the ability of fast ad hoc networking, with rich feature support, a device can be flexibly modified into a routing node and a coordination node, supporting the access of a variety of serial ports, realizing the rapid installation and communication of the device, and no other costs are incurred in the communication process.
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Anonymous users2024-02-03The tree topology consists of a coordinator, multiple routes, and endpoints. Tree networks can be built using modules such as the ZM5168. The details are as follows:
Bus type, like a tree, can be a small LAN underneath the port.
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