Method, system and device for scheduling sensor nodes in wireless sensor network

Abstract

The embodiment of the invention discloses a method, a system and a device for scheduling sensor nodes in a wireless sensor network. The method comprises the following steps: acquiring a network connection relationship and a target coverage relationship of each sensor node; acquiring an output result by a column generating method according to the network connection relationship, the target coveragerelationship and a coverage requirement, wherein the output result comprises the number of time slices required by different working modes; acquiring a schedule table according to the output result;and broadcasting the schedule table in the wireless sensor network to schedule each sensor node. The method, the system and the device implement the scheduling of the sensor nodes in the wireless sensor network by the column-based generating method, and reduce power consumption required by the wireless sensor network to monitor target nodes.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a scheduling method, system and equipment for sensor nodes in a wireless sensor network. Background technique [0002] As a new technology, wireless sensor network has been fully applied in many fields. In wireless sensor networks, sensors may be deployed in very harsh environments. In many applications, it is inconvenient to replenish energy to sensor nodes by replacing batteries. Therefore, in the case of limited energy of sensor nodes, how to effectively collect information, transmit data reliably, and prolong the service life of the network is an important issue in the application of sensor networks. [0003] Coverage problems belong to the category of fundamental problems in wireless sensor networks. Most of the applications in the sensor network require the bottom layer to provide the coordinates of nodes or observation targets and the monitoring range of the netwo...

AI Technical Summary

Problems solved by technology

[0007] The existing technology assumes that "the number of set coverage in the network is in the same order of magnitude as the number of SNs" when establishing the LP equation, but practice has proved that it is unreasonable to verify this assumption

Therefore, it is impossible to really reduce the power consumption required to monitor the target node in the wireless sensor network.

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