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Method and device for planning smooth paths of mobile sink

A path planning and smoothing technology, applied in advanced technology, electrical components, network topology, etc., which can solve problems such as long moving paths, energy consumption, and slow data collection.

Active Publication Date: 2016-11-23
GUANGXI UNIV
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Problems solved by technology

[0009] The purpose of the present invention is to provide a smooth path planning method and device for a mobile sink, which can collect data from sensor nodes in a short path while moving at a constant speed, thereby overcoming the long moving path of the mobile sink in the existing mobile sink collection network , data collection is slow and consumes energy

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  • Method and device for planning smooth paths of mobile sink
  • Method and device for planning smooth paths of mobile sink
  • Method and device for planning smooth paths of mobile sink

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Embodiment Construction

[0062] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0063] Such as Figure 5 As shown, the smooth path planning method for mobile sink includes the following steps:

[0064] S100: Deploy a certain number of sensor nodes in the monitoring area, and determine multiple sensor nodes that the mobile sink needs to visit;

[0065] S101: Obtain the current position coordinates of the mobile sink and the position coordinates of multiple sensor nodes to be accessed by the mobile sink in turn;

[0066] S102: Obtain in real time the bisector of the first angle between the current mobile sink, the first sensor node and the second sensor node;

[0067] S103: Obtain the reference point of the first bisector, and obtain the first smooth arc path of the mobile sink located within the ...

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Abstract

The invention discloses a method and device for planning smooth paths of a mobile sink. The method includes the steps that a certain number of nodes are deployed in a monitoring region, and multiple nodes to which the mobile sink needs to have access are determined; current coordinates of the mobile sink and coordinates of multiple sensor nodes to which the mobile sink sequentially has access are acquired; a first angular bisector among the current mobile sink, the first sensor node and the second sensor node is acquired in real time; a reference point of the first angular bisector is acquired, and the first smooth arc path of the mobile sink within the sensing range of the first sensor node is acquired according to the reference point; in this way, the (N-1)th angular bisector among the current mobile sink, the (N-1)th sensor node and the Nth sensor node is acquired sequentially in real time, wherein N is larger than 2; the (N-1)th smooth arc path of the mobile sink within the sensing range of the (N-1)th sensor node is acquired according to a reference point of the (N-1)th angular bisector. The method can rapidly collect data in a network, and energy is saved.

Description

technical field [0001] The invention relates to the field of wireless sensor networks, in particular to a smooth path planning method and device for a mobile sink. Background technique [0002] In a wireless sensor network, sinks are usually used to collect data from sensing nodes in the network. There are two types of sinks, one is static; the other is mobile, called a mobile sink. Network nodes are deployed in the monitoring area in a specific way. In traditional wireless sensor networks, a static sink node is deployed in the center of the monitoring area, and then it is used to collect data in the monitoring area, such as figure 1 shown. [0003] In the wireless sensor network based on the static sink node, when the static sink node is deployed in the center of the network area, the network performance is the best, and the network delay is the lowest, but all the network nodes on the periphery of the static sink node transmit data to the sink When the nodes are connecte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W40/02H04W40/24H04W84/18
CPCH04W40/02H04W40/246H04W84/18Y02D30/70
Inventor 唐秋玲童国顺
Owner GUANGXI UNIV
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