Wireless ad hoc network construction method and wireless ad hoc network data transmission method

Abstract

A method for constructing wireless ad hoc network and a data transmission method of wireless ad hoc network are disclosed. The construction method realizes the construction of the network according tothe networking frame broadcast by the center node after power-up, and each node determines the hierarchy according to the received networking frame, thereby forming a multi-layer wireless network, and the whole wireless network is completed by itself in the construction process, thereby realizing the self-organization of the wireless network. The invention solves the problem that the point-to-point direct wireless communication can not be carried out because of the long distance, and ensures the effective construction of the wireless network. The data transmission method provided by the invention ensures the effective transmission of the data transmission according to the hierarchical forwarding mode. Not only solve the problem of data collision caused by multi-node data transmission, butalso if a node fails to forward, another node will automatically forward, which will not affect the data transmission and keep the network smooth.

Description

technical field [0001] The invention relates to a network construction method and a data transmission method, in particular to a wireless ad hoc network construction method and a wireless ad hoc network data transmission method. Background technique [0002] The wireless ad hoc network protocol is a hot research direction at present. There are many large companies in the world doing research, and there are many routing methods researched, but most of them are too complicated and the simulation effect is good, but the effect in actual use is affected by the installation location, The strength of the signal has a greater impact, and the effect is not necessarily good. [0003] For the currently popular wireless ad hoc network protocols such as Zigbee, the network capacity is large, up to 65535 nodes, and each node in the network needs to use a special zigbee chip or module, and ordinary FSK modulated wireless modules cannot be used. The cost of the wireless transceiver part i...

AI Technical Summary

Problems solved by technology

The principle of forwarding is to forward as little as possible. Too much forwarding will cause too much data to be transmitted in the network, resulting in communication congestion and network deterioration; too little forwarding will cause the signal to be unable to be reliably transmitted from the source node to the destination node.

The number of forwarding times can be entered manually. For example, when the range is large, set a larger number of forwarding times, and set a smaller number of forwarding times. This is called artificial networking. The number of times is enough, and the farthest node can also communicate with the central node. The disadvantage is that the number of forwarding times is not easy to determine, and the number of forwarding times of each node in the network should not be the same, because the distance between each node and the central node is different. , the closer the distance, the less the number of reposts, and vice versa.