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Multiple-target passive tracking method based on wireless sensor network

A wireless sensor, multi-target technology, used in wireless communications, radio wave measurement systems, instruments, etc., can solve the problem of inability to track at the same time, and achieve the effect of simple tracking methods and precise strikes

Inactive Publication Date: 2014-06-25
SUZHOU GUOKE SENSING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing passive positioning technology can only realize the positioning and tracking of a single moving target in the coverage area. When there are multiple targets in the area, due to the mutual interference and high similarity of the signals, the existing technology is still unable to simultaneously locate and track them. track

Method used

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  • Multiple-target passive tracking method based on wireless sensor network
  • Multiple-target passive tracking method based on wireless sensor network
  • Multiple-target passive tracking method based on wireless sensor network

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Embodiment Construction

[0018] The technical scheme of the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention.

[0019] like figure 1 and figure 2 shown, where figure 1 is the flowchart of the method, figure 2 It is a schematic diagram of an indoor and outdoor scene in a wireless sensor network, including N sensor nodes and a sink node (not shown in the figure), and the N sensor nodes are numbered sequentially with numbers 1, 2, 3...N.

[0020] A multi-target passive tracking method based on wireless sensor networks, the specific steps are as follows:

[0021] S01: The sensor nodes of the wireless sensor network broadcast data packets in sequence of numbers: the data packets include the numbers of their own sensor nodes and the signal strengths received...

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Abstract

The invention discloses a multiple-target passive tracking method based on a wireless sensor network. The multiple-target passive tracking method based on the wireless sensor network comprises the following steps: S01, sensor nodes of the wireless sensor network broadcasts data packs according to number sequences; S02, data are uploaded to a control center after broadcasting is finished, the control center performs calculation to judge real-time target number; S03, global dynamic theoretical signal intensity matrixes of all of targets are calculated through an additivity model and accordingly the target location likelihood degree is calculated; S04 using a Markov chain Monte Carlo algorithm to perform real-time tracing on all of targets. Multiple moving targets in a coverage region of the wireless sensor network can be traced simultaneously, and further the tracing accuracy is improved.

Description

technical field [0001] The invention relates to a multi-target passive tracking method based on a wireless sensor network. Background technique [0002] A wireless sensor network is a multi-hop self-organizing network formed by a large number of cheap micro sensor nodes deployed in the monitoring area through wireless communication. The wireless sensor network system usually includes sensor nodes, aggregation nodes and management nodes. The hot research field of concern is a revolution in information collection and perception, which is widely used in military, environmental monitoring and forecasting, smart home, urban transportation, and safety monitoring of corridors and factories. Among them, positioning and tracking is one of the main research directions of wireless sensor networks. It mainly uses radio frequency signals used in communication in wireless sensor networks for target perception. It is also called a positioning method based on the strength of radio frequency...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S5/00H04W64/00
CPCG01S5/0252H04W64/00
Inventor 陈曦
Owner SUZHOU GUOKE SENSING TECH CO LTD
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