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Energy-saving communication method under abnormal state of Internet of Things gateway

An Internet of Things gateway and abnormal state technology, applied in wireless communication, energy consumption reduction, sustainable communication technology, etc., can solve problems such as scenarios that only consider the normal state of the network, reduce the number of transmissions, achieve energy saving, and delay the death time Effect

Active Publication Date: 2021-10-29
UNIV OF ELECTRONICS SCI & TECH OF CHINA ZHONGSHAN INST
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  • Application Information

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Problems solved by technology

In the above-mentioned protocols, only the scenarios of the normal state of the network are considered.

Method used

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  • Energy-saving communication method under abnormal state of Internet of Things gateway
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  • Energy-saving communication method under abnormal state of Internet of Things gateway

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with accompanying drawing:

[0021] as attached figure 1 As shown, the present invention provides an energy-saving communication method in an abnormal state of an Internet of Things gateway, which specifically includes the following steps:

[0022] A1: The gateway collects the coordinate information of the nodes, and calculates the number of cluster heads according to the following formula:

[0023]

[0024] where N is the total number of nodes, M is the edge length of the network area, d toBS is the average distance from the node to the gateway. ε fs is the energy loss of free space transmission, the value is ε fs =10pJ / bit / m 2 ;ε mp is the energy loss under the multipath fading model, and the value is ε mp =0.0013pJ / bit / m 4 ;

[0025] A2: According to the number of cluster heads obtained in A1, the nodes are clustered using the binary K-means algorithm. The process is as follows figure ...

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Abstract

The invention discloses an energy-saving communication method in an abnormal state of a gateway of the Internet of Things. The method comprises the following steps that: firstly, gateway abnormity is divided into northbound interface abnormity and southbound interface abnormity; the sensor nodes are clustered, gateway states are obtained through cluster heads and are broadcasted to member nodes, the purpose of saving communication energy consumption is achieved by reducing the total radio transmission frequency of the nodes in unit time, and meanwhile uniform consumption of energy of all the nodes is achieved through cluster head alternation; in addition, the scheme can be applied to a large-scale Internet of Things scene, and a routing scheme is provided for each cluster through a Dijkstra algorithm, so that the communication energy consumption is further reduced.

Description

technical field [0001] The invention belongs to the technical field of low-power wide-area network communication, and in particular relates to an energy-saving communication method under an abnormal state of an Internet of Things gateway. Background technique [0002] The general Internet of Things can be divided into two parts: gateways and nodes. The gateway is generally a power supply device, one end obtains node data through the Internet of Things protocol, and sends data to the node; one end connects to the cloud or the host computer through Ethernet or WIFI, so as to upload the node data, or obtain some instructions, to complete certain tasks. The wireless part of the Internet of Things system is mostly wireless sensor networks. The node devices in these networks contain sensors that can collect data and report it. However, due to the impact of the working environment, the node devices are mainly battery-powered devices, and it is difficult to replace the battery. Th...

Claims

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Application Information

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IPC IPC(8): H04W52/02H04W40/12H04W40/10
CPCH04W52/0203H04W40/10H04W40/12Y02D30/70
Inventor 杨鲲张轶梅海波王洋赵毅哲刘亮元
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA ZHONGSHAN INST
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