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Moving target detecting method wireless sensor network head node equipment

A wireless sensor and moving target technology, applied in wireless communication, network topology, electrical components, etc., can solve the problem of low probability of finding targets, achieve the effect of saving node capacity, universality, and suppressing false alarms

Active Publication Date: 2011-07-13
CHINA NUCLEAR POWER TECH RES INST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can effectively solve the problem that a single node has a small probability of finding a target, and can detect moving targets without knowing the detection probability and false alarm probability of the sensor

Method used

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  • Moving target detecting method wireless sensor network head node equipment
  • Moving target detecting method wireless sensor network head node equipment
  • Moving target detecting method wireless sensor network head node equipment

Examples

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Embodiment Construction

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

[0043] Attached below figure 1 The moving target detection method of the present invention will be described in detail and the specific embodiments.

[0044] figure 1 Shown is a schematic flow chart of the moving object detection method of the present invention. In a specific implementation, the moving target detection method of the present invention is applied to a wireless sensor network, and the wireless sensor network includes a head node and several sub-nodes. In general, the head node has strong computing power in addition to detection capabilities, while general child nodes have weak computing power in addition to detection capabilities. In addition, the head node has greater capabilities. It can communicate with distant radar stations, but general sub-nodes do not h...

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Abstract

The embodiment of the invention discloses a moving target detecting method and wireless sensor network head node equipment. The method comprises the following steps of: detecting a signal which is transmitted by a moving target by using a first sub-node; activating other sub-nodes within a length specified by the first sub-node to detect the moving target when the moving target is detected by the first sub-node; searching a triangle which meets three conditions from the sub-nodes within the specified length when the moving target is detected by the sub-nodes; when the triangle which meets the three conditions is searched out, determining a circular area by taking the mass center of the triangle as a circle center and taking the detecting radius of the first sub-node as a radius, and calculating the total number of nodes that the probability of finding the moving target by using the sub-node is more than a node detecting threshold in the area; and comparing the total number of the nodes with a preset decision threshold. The problem that the probability of finding the target by using a single node is low can be effectively solved by implementing the invention.

Description

technical field [0001] The invention relates to the field of wireless sensor networks, in particular to a method for detecting a moving object and a head node device of a wireless sensor network. Background technique [0002] Wireless sensor network (Wireless Sensor Network, WSN) is a network composed of a large number of low-cost sensor nodes with certain perception capabilities, computing capabilities, and wireless communication capabilities. Its main function is to intelligently perceive the external environment and provide the processed information to the user. WSN has broad application prospects in battlefield environment perception and target tracking, environmental observation, traffic management, safety monitoring, medical diagnosis and treatment, wild animal protection and other occasions. When WSN target detection, a multi-hop self-organizing network system is formed through wireless sensors, and its purpose is to cooperatively perceive, collect and process the in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/02H04W84/18
Inventor 周舟熊国华
Owner CHINA NUCLEAR POWER TECH RES INST CO LTD
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