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System and method for dynamically switching target tracking method in sensor network

A technology of sensor network and target tracking, which is applied in the field of switching target tracking methods

Inactive Publication Date: 2016-08-03
INST OF COMPUTING TECH CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no technology in the sensor network that can dynamically switch the target tracking method according to the change of the target number.

Method used

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  • System and method for dynamically switching target tracking method in sensor network
  • System and method for dynamically switching target tracking method in sensor network
  • System and method for dynamically switching target tracking method in sensor network

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Embodiment Construction

[0034] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0035] figure 1 A schematic flowchart of a method for dynamically switching object tracking methods according to an embodiment of the present invention is given. This method combines the information collected based on the target tracking node and the information collected based on the collaborative node to comprehensively judge whether the timing of dynamic switching of the target tracking method has come.

[0036] Below to figure 2 The typical application scenario of the wireless sensor network shown as an example to illustrate figure 1 The specific steps of the method are shown. ...

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Abstract

The invention provides a method for dynamically switching a target tracking method in a sensor network. The method comprises the following steps: first, an information fusion node estimates an error between a predicted value and an actual measured value of a next position of a moving target based on target state information from a target tracking node so as to obtain a dynamic switching reference value dsr and sends a message to a cooperative node when the dsr is greater than a predetermined threshold value omega; second, the cooperative node judges the current number of targets according to an image, acquired through an image sensor, of a current scene and sends the number to the information fusion node as a judgment result; and finally, the information fusion node judges whether a target tracking method needs to be switched currently according to the dynamic switching reference value and the judgment result from the cooperative node. The method makes full use of the advantages of a chip sensor node and an image sensor node and can be used for finding a timing for target switching more accurately and more quickly.

Description

technical field [0001] The invention belongs to the field of target tracking in sensor networks, in particular to switching of target tracking methods. Background technique [0002] In sensor networks, it is often necessary to detect and track moving targets through sensors. The existing tracking methods for moving targets include single target tracking methods and multi-target tracking methods. These two methods have different effects on target tracking. If a single target tracking method is used to track multiple targets, the target tracking effect will be very poor; similarly, if a multi-target tracking method is used to track a single target, the target tracking The effect will also be poor. Most of the current tracking algorithms have assumed single-target tracking or multi-target tracking in advance, and the number of targets has been fixed in advance, so single-target tracking algorithms or multi-target tracking algorithms can be selected in advance. [0003] Howev...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W40/20H04W64/00H04W84/18
Inventor 肖克江王睿崔莉刘新宇
Owner INST OF COMPUTING TECH CHINESE ACAD OF SCI