Low energy-consumption data acquisition method based on Zigbee wireless sensor network

Abstract

The invention provides a low energy-consumption data acquisition method based on a Zigbee wireless sensor network. The low energy-consumption data acquisition method is the improvement of a data acquisition method for a ZigBee terminal device. Aiming at different detecting environments, the method is capable of meeting a certain detecting accuracy and reducing the energy consumption of a network by reducing the number of data source nodes communicating with a converging node or a ZigBee route node. The low energy-consumption data acquisition method can be flexibly applied to different application environments and different object detections. A unique information compression factor is arranged for extremely reducing the energy consumption of the network on the basis of meeting the detecting accuracy. In the low energy-consumption data acquisition method, the processes of dynamically dividing a region, dynamically selecting a representative node and dynamically selecting the representative node in the region by using a difference between the rest energy and the energy consumed by acquiring data all achieve the purposes of balancing the energy consumption of each node in the wireless sensor network and prolonging the life time of the whole network.

Description

technical field [0001] The invention relates to a data collection method in a wireless sensor network, in particular to a low-energy data collection method based on a Zigbee wireless sensor network. Background technique [0002] Wireless sensor network WSN (wireless sensor network) is a network formed by several sensor nodes with perception, processing and wireless communication capabilities through self-organization. ZigBee technology is one of the WSN specifications that have developed rapidly in recent years, and the technology defined is simpler and cheaper to implement than other WPANs, and is more suitable for low data rate, low power consumption and secure wireless networks. [0003] ZigBee wireless network is mainly composed of ZigBee coordinator, ZigBee router and ZigBee terminal equipment. In the existing technology, ZigBee can realize the function of supporting various network topologies. In consideration of reducing the energy consumption during system operation...

AI Technical Summary

Problems solved by technology

[0004] The main disadvantage of the existing technology is: in the detection environment where a large number of sensor nodes need to be arranged, the data source nodes mostly use reduced-function devices, which requires a large number of full-function devices as routing nodes, using the network routing strategy of the ZigBee protocol to achieve the best Optimal data transmission path, although the data source node will enter the dormant state regularly without receiving the data collection command, but the number of data source nodes in the collection and routing node routing data is much greater than the number of dormant state, and the energy consumed by wireless communication accounts for the sensor 80% of the total node energy consumption

Although the current wireless sensor network technology is relatively mature, there are still certain technical defects in the field of data acquisition in the detection environment.

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