Communication establishing method, system and device for wireless sensor network

Abstract

The invention discloses a communication establishing method, a communication establishing system and a communication establishing device for a wireless sensor network, which are used for solving the problem of the consumption of a large amount of electricity caused by periodic broadcast of access signals by mobile terminals serving as mobile sink nodes. The method comprises the following steps of: when data to be transmitted is determined by network side equipment, broadcasting wakeup signals for the mobile sink nodes; receiving access signals broadcast by at least one mobile sink node after the wakeup signals are received; selecting identification information which corresponds to a mobile sink node for receiving the data from identification information of the mobile sink nodes included in each received access signal respectively; and transmitting the data to be transmitted to the mobile sink node of which an identification information mark is selected. The mobile sink nodes only broadcast the access signals after receiving the wakeup signals, so that the consumption of a large amount of electricity by the mobile terminals serving as the mobile sink nodes is avoided, the standby time of the mobile terminals is prolonged, and the service life of the mobile terminals is prolonged.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a method, system and device for establishing communication in a wireless sensor network. Background technique [0002] With the rapid development of microelectronics technology, MEMS technology and wireless communication technology, the design and application of low-power sensors integrating sensing and wireless communication functions have become a reality. As long as the corresponding wireless sensor nodes are deployed near the event location, the data of interest can be collected. [0003] In a wireless sensor network, the general types of nodes include: sensor nodes equipped with various types of sensors and sink nodes, where the sensor nodes are used to detect and sense the surrounding environment, and the sink nodes are used to receive information sent by other sensor nodes. data. The aggregation node is equipped with more than two network interfaces. On the one hand...

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Problems solved by technology

[0007] In view of this, the embodiments of the present invention provide a method, system, and device for establishing communication in a wireless sensor network to solve the problem that a mobile terminal serving as a mobile aggregation node consumes a large amount of power due to periodic broadcast of access signals, shortening the mobile The standby time of the terminal, and the problem of shortening the life of the mobile terminal

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