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Event monitoring method and storage medium based on wireless sensor network

A technology of wireless sensors and sensor nodes, applied in wireless communication, network topology, electrical components, etc., can solve the problems of low efficiency of wireless sensor networks, and achieve the effect of improving life and transmission efficiency, prolonging life and improving transmission efficiency.

Active Publication Date: 2020-10-16
FUJIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, in the existing widespread applications, for the sake of convenience, in most cases, the sensor nodes are deployed to the target area by means of random broadcasting, but the efficiency of the wireless sensor network constructed by this deployment method is very low.

Method used

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  • Event monitoring method and storage medium based on wireless sensor network
  • Event monitoring method and storage medium based on wireless sensor network
  • Event monitoring method and storage medium based on wireless sensor network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] Please refer to figure 2 , Embodiment 1 of the present invention is: an event monitoring method based on a wireless sensor network, in this embodiment, the sensor node in the wireless sensor network is a mobile node, and the method is based on event triggering, including the following steps:

[0064] S1: Construct an event source node according to the location of the event source; the location of the event source is the central location where the event occurs, such as the central location of a forest fire area.

[0065] S2: Generate a minimum spanning tree according to the event source node and a sink node (sink node); further, generate a minimum spanning tree through Prim's algorithm (Prim's algorithm).

[0066] Specifically, first, according to the event source node and the sink node, a weighted connected graph is obtained, wherein the vertex set is V, and the edge set is E; then the sink node is added to the first set Vnew, and the second set Enew is initialized to ...

Embodiment 2

[0081] Please refer to image 3 , this embodiment is a further extension of step S6 in the first embodiment.

[0082] Such as image 3 As shown, the step S6 includes the following steps:

[0083] S601: Set a non-dead sensor node among neighbor nodes of the sink node as a first-hop node. Furthermore, each sensor node has a state parameter, which is used to record that the node can transmit information to the sink node through several hops, and its initial state value is -1; when the state parameter is 0, it means that the sensor node has The energy runs out and dies.

[0084] S602: Record the previous hop node information of the first hop node as the information of the sink node; further, set the state parameter of the first hop node to 1.

[0085] S603: Let n=1.

[0086] S604: Judging whether there is a non-dead sensor node that has not joined the minimum Hop tree in the neighbor nodes of the nth hop node, that is, judging whether there is a sensor node with a state param...

Embodiment 3

[0092] This embodiment is a computer-readable storage medium corresponding to the above-mentioned embodiments, on which a computer program is stored, and when the program is executed by a processor, the following steps are implemented:

[0093] According to the location of the event source, build the event source node;

[0094] Generate a minimum spanning tree according to the event source node and the sink node;

[0095] Carry out N equally divided each edge of the minimum spanning tree respectively, obtain N-1 equally divided points of each edge and positional information of two endpoints;

[0096] The non-dead sensor nodes move towards the closest bisection point or endpoint respectively;

[0097] If the distance between a non-dead sensor node and an event source node is less than or equal to the sum of the monitoring radius of the sensor node and the monitorable radius of the event source node, and the sensor node and the event source node If the distance from the source...

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Abstract

The invention discloses an event monitoring method based on a wireless sensor network and a storage medium. The method comprises steps of according to an event source node and a gathering node, generating a minimum spanning tree; carrying out N equal division on each edge of the minimum; allowing non-dead sensor nodes to move towards the equal division points or end points closest to the non-deadnodes; if the distance between one non-dead sensor node and an event source node is smaller than or equal to the sum of the monitoring radius of a sensor node and a monitorable radius of an event source node, and the distance is the nearest, constructing a minimum Hop tree according to the non-dead sensor nodes and the gathering nodes; according to the minimum Hop tree, determining a communicationchannel of one sensor node and the gathering node; and transmitting monitoring data of an event source node to the gathering node through the communication channel through a sensor node. According tothe invention, a problem of blind region monitoring can be effectively solved; service lifetime of a wireless sensor network can be prolonged; and transmission efficiency can be improved.

Description

technical field [0001] The invention relates to the technical field of wireless sensor networks, in particular to an event monitoring method and a storage medium based on a wireless sensor network. Background technique [0002] Wireless Sensor Network (WSN) is a distributed sensor network, which is constructed by a large number of sensor nodes through self-organization. Build a wireless sensor network in the target area to perceive the target area, process the collected information and then transmit it to the data center through multi-hop. Wireless sensor networks can be deployed in some extreme environments that humans cannot reach, and accomplish some tasks that cannot be accomplished by humans. Such as detecting fires in the forest, monitoring the environment in space and deep sea, etc., it can also carry out military investigation, telemedicine, earthquake disaster relief and so on. [0003] Sensor nodes provide energy through limited batteries, and sensors are often d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W40/04H04W40/20H04W24/02H04W84/18
CPCH04W24/02H04W40/04H04W40/20H04W84/18
Inventor 章静吴炜钊刘石坚嵇晓蓉翁才杰魏佳坤李圣楠万典
Owner FUJIAN UNIV OF TECH
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