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Reliable low-power-consumption high-throughput wireless sensor network data collection method

A wireless sensor, high-throughput technology, applied in wireless communication, advanced technology, energy reduction, etc., can solve problems such as two-way communication conflicts, achieve low power consumption, achieve reliability, and short turn-on time.

Inactive Publication Date: 2020-02-07
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Two-way communication in uplink and downlink can create collisions

Method used

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  • Reliable low-power-consumption high-throughput wireless sensor network data collection method
  • Reliable low-power-consumption high-throughput wireless sensor network data collection method
  • Reliable low-power-consumption high-throughput wireless sensor network data collection method

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Embodiment 1

[0065] Such as figure 1 and figure 2 As shown, the reliable low power consumption high throughput wireless sensor network data collection method described in the present invention comprises the following steps:

[0066] S1: Time slot allocation: Each node uses a heuristic algorithm to allocate corresponding multi-channel transmission time slots according to the topology of the network. Channels are allocated based on the number of hops. The heuristic algorithm used to optimize the time slot allocation includes the following small steps:

[0067] S11: the aggregation node collects a tree-based network topology;

[0068] S12: Each node uses setting 0 and setting 1 to represent whether there is a data packet to be sent;

[0069] The initial state of all nodes except the sink node is set to 1, and the sink node is always set to zero;

[0070] S13: The algorithm performs the following cycle:

[0071] S131: traverse each node including the sink node, find all zero-set nodes, an...

Embodiment 2

[0092] In view of the above existing problems, the present invention provides a wireless sensor network data collection method capable of achieving reliability, low power consumption, and high throughput, which includes three parts.

[0093] S1: Time slot allocation: Each node uses a heuristic algorithm to allocate corresponding multi-channel transmission time slots according to the topology of the network. The specific steps of the algorithm are as follows:

[0094] (1) The aggregation node collects a tree-based network topology;

[0095] (2) Each node uses setting 0 and setting 1 to represent whether there is a data packet to be sent. The initial state of all nodes except the sink node is set to 1, and the sink node is always set to zero;

[0096] (3) The algorithm performs the following cycle: traverse each node (including the sink node), find all nodes that are set to zero, and record them. When this loop ends, check whether there is a node set to 1 among the child nodes...

Embodiment 3

[0103] The technical solution of the present invention will be described in further detail in conjunction with the accompanying drawings and embodiments.

[0104] The present invention utilizes a half-duplex transmission protocol of flooding fast collection, including a collection node (SinkNode) and source nodes (Source Node) of each sensor, and utilizes radio flooding to realize the fast collection and processing of Source Node data. reliable communication.

[0105] For the collection node Sink Node, regardless of any power consumption, it continuously receives data from each node, and collects and transmits it to the host computer.

[0106] For the source node Source Node, data is sent and received according to the sending and receiving order obtained from the topology. Send the data collected by itself (such as data from various sensors) to the upstream node. After the first sending, the data from the downstream node will also be received, but the data is only transmitte...

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Abstract

The invention relates to a reliable low-power-consumption high-throughput wireless sensor network data collection method, and belongs to the technical field of wireless. The method comprises the following steps: time slot allocation: each node allocates corresponding multi-channel sending time slots by utilizing a heuristic algorithm according to a topological structure of a network, the channelsare allocated based on hop counts, and the used heuristic algorithm is used for optimizing time slot allocation; global synchronization multi-channel transceiving: realizing global time synchronization based on constructive interference, and organizing multi-channel communication from each source node to an aggregation node and constructive flooding from the aggregation node to the source node byadopting a superframe structure on the basis of time slot allocation; and data packet retransmission: realizing high-throughput data transmission by utilizing an optimized multi-channel time slot allocation strategy, realizing efficient wireless communication opening and closing scheduling on the basis of TDMA time slot allocation, and realizing reliability by utilizing node-to-node data packet retransmission. According to the invention, reliability, low power consumption and high throughput can be realized.

Description

technical field [0001] The invention relates to a reliable data collection method of a wireless sensor network with low power consumption and high throughput, and belongs to the field of wireless technology. Background technique [0002] Wireless sensors are networked nodes distributed in space. These nodes use wireless communication and sensor technology to cooperatively monitor conditions (such as temperature, sound, vibration, pressure, etc.) at different locations. Wireless sensor nodes include source nodes (source node) and sink nodes (sink node). The nodes that have been commercialized include Mica, Telos, Imote and other series. [0003] Due to its characteristics of self-organization, microstructure, low cost, flexibility, high monitoring accuracy, reliability, and easy installation, wireless sensor networks have been applied in many fields. From smart grid, smart home, smart medical care, smart agriculture, smart bridge, to structural inspection, water quality in...

Claims

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Application Information

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IPC IPC(8): H04W72/04H04J3/06H04L1/16H04L1/18
CPCH04W72/0446H04J3/0655H04L1/1607H04L1/1806Y02D30/70
Inventor 刘进志孙绍华张典
Owner QINGDAO UNIV OF SCI & TECH
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