Building method of self-organized reconfigurable wireless sensor network

Abstract

The invention relates to a building method of a self-organized reconfigurable wireless sensor network, which comprises four parts including a networking procedure, a media access protocol, network protocol data packet frame formats and node setting. A host node exists, new slave nodes which are arranged in an effective area automatically send access request information to the host node, and the host node assigns addresses and information transfer routes to the new slave nodes; data transmission is carried out among the network nodes in a multi-hop mode, and the P-persistent media access protocol of carrier sense multiple access / collision avoidance is adopted; the transmitted information adopts different frame formats according to the different tasks; hardware of the host node comprises a transmitting and receiving controller and a computer; and hardware of each slave node comprises a transmitting and receiving controller, a single-chip microcomputer chip and a filter amplifying circuit. The building method disclosed by the invention is simple and easy for operation. A built system has the functions of self-organized network access, network reconfiguration and distributed data acquisition transmission, and the building method is particularly suitable for building small wireless data acquisition sensor networks.

Description

technical field [0001] The invention relates to a method for establishing a wireless sensor network, in particular to a method for establishing a self-organized reconfigurable wireless sensor network for distributed data collection and transmission. Background technique [0002] In recent years, with the rapid development of sensor technology, wireless communication technology and embedded computer technology, wireless sensor networks with perception capabilities, communication capabilities and computing capabilities have begun to appear in large numbers. Wireless sensor nodes can be arranged in the target environment according to the requirements, form a network through the self-organization function, use multi-hop data transmission, form a distributed autonomous system, and complete tasks in a coordinated manner. Compared with wired equipment, it has the advantages of low cost, flexibility, and no need to rely on fixed facilities. Therefore, this technology has broad appli...

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Problems solved by technology

At present, there have been many studies on the networking methods and routing protocols of wireless sensor networks in the prior art, but most of them focus on the research of general networking schemes or ideas, considering traditional network operation indicators, such as network Topology, connectivity, coverage, communication efficiency, etc., do not take into account the practical issues that need to be considered in combination with many factors such as application scenarios and target environments during the specific implementation process of physical nodes, such as the feasibility, convenience, and difficulty of system implementation degree and value for money

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