A Bluetooth wireless transducer network organizing and routing method

Abstract

The invention discloses a network netting and a routing method of a Bluetooth wireless sensor, which combines sensor network technique and Bluetooth technique and makes full use of the matured physical layer, MAC technique and anti-interference capacity of Bluetooth network when the sensor nets network, so as to lead the system to conveniently and rapidly net the network. A designed Bluetooth scatter net takes the practical use of a wireless sensor network into consideration when netting and uses a tree topology. The netting consists of three stages: the selection of a root node, the forming of a root piconet and the expansion of the network. By adopting the netting method based on that the energy can be predetermined and the service time of the network can be prolonged, and under the requirement of emphasizing the longest service life of the network, each piconet of the formed wireless sensor network is left with vacant positions and backup nodes, so as to lead the formed network to have better reliability, flexibility and self-recoverability to satisfy the situations that partial nodes can be added on, moved and leaves the network, etc. The routing information is interacted when the system is net, and when the network netting is completed, the routing information tables of all the nodes are built simultaneously. When the network is operated, a low-power respiratory mode of the Bluetooth network and the transmitting and sensing information of the network periodicity are used for prolonging the life service of the whole network.

Description

technical field [0001] The invention is a networking and routing method applied to a wireless sensor network. It belongs to the technical field of wireless communication and information dissemination. Background technique [0002] Wireless sensor network refers to an information dissemination network composed of a large number of sensor nodes using wireless communication. It integrates sensor technology, embedded computing technology, modern network and wireless communication technology, and distributed information processing technology. A large number of cheap micro-sensor nodes are deployed in the monitoring area, forming a multi-hop self-organizing network system through short-distance wireless communication. The purpose is to cooperatively sense, collect and process the information of the perceived objects in the network coverage area, and send it to the observer . If the Internet constitutes the logical information world and changes the way of communication between pe...

AI Technical Summary

Problems solved by technology

[0004] At present, the networking and routing of wireless sensor networks mainly consider traditional network operation indicators, such as: network connectivity, coverage, communication efficiency, energy saving, etc., without considering the working characteristics of the physical layer and MAC layer protocol of the actual wireless communication mode

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