Method for selecting control nodes for complex task cooperative processing in wireless sensor network

Abstract

The invention discloses a method for selecting control nodes for complex task cooperative processing in a wireless sensor network. The method comprises the following main steps: in a sensing node working area, position information of all nodes is known; sensing nodes sense a complex task and then describe and decompose the task into a plurality of subtasks; the sensing nodes broadcast messages under the condition that all nodes in the working area return respective ID (Identity) number, position information and energy information; and the sensing nodes carry out sequencing on the nodes according to an energy descending order, analyze an included angle between the two nodes and the sensing nodes, select the nodes according with conditions as control nodes and divide the working area into aplurality of working subareas according to the positions of the control nodes, wherein the quantity of the working subareas is equal to the quantity of the subtasks. The method disclosed by the invention is applied to wireless sensor network communication and can improve the complex task cooperative processing efficiency and save network energy.

Description

technical field [0001] The invention relates to the field of wireless sensor network communication, in particular to a control node selection method for complex task cooperative processing in the wireless sensor network. Background technique [0002] Wireless sensor networks (Wireless Sensor Networks) are highly concerned by academia and industry all over the world due to their highly interdisciplinary nature and broad application prospects, and are emerging frontier hot research directions. It is widely used in many fields to process sensitive information, and its application scenarios include military, industrial, family, medical and health, environmental monitoring and many other fields. For example, wireless sensor networks can accurately and timely predict the occurrence of fires in buildings; when earthquakes, floods, severe tropical storms, or other disasters strike emergency situations, wireless sensor networks that do not rely on any fixed network facilities, Self-...

AI Technical Summary

Problems solved by technology

When the sensing node notifies a node to process the corresponding task, the node may still be processing the previous task, which will lead to the accumulation of tasks, resulting in a delay in task processing; or the node that is processing the task directly refuses Sensing the requisition requirements of nodes, not processing the next task, causing invalid communication and increasing energy consumption

The above shortcomings seriously reduce the efficiency of collaborative processing of complex tasks and waste network energy.

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