CN104955150A - Wireless sensor network target tracking method - Google Patents
Wireless sensor network target tracking method Download PDFInfo
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- CN104955150A CN104955150A CN201510326514.0A CN201510326514A CN104955150A CN 104955150 A CN104955150 A CN 104955150A CN 201510326514 A CN201510326514 A CN 201510326514A CN 104955150 A CN104955150 A CN 104955150A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
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- Computer Networks & Wireless Communication (AREA)
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- Position Fixing By Use Of Radio Waves (AREA)
Abstract
The invention discloses a wireless sensor network target tracking method, which comprises three stages which are respectively a detection stage, a positioning stage and an announcement stage, wherein in the detection stage, whether a tracking target occurs or not is detected by a detection method, and if the tracking target occurs, the operation enters the positioning stage; in the positioning stage, firstly, the current position and the moving state of the tracking target are determined by a positioning method, then, the current position and the current state of the tracking target are recorded, and next, the operation enters the announcement stage; in the announcement stage, information is mutually exchanged between nodes, concretely, the nodes send out a cooperated position help seeking to peripheral nodes or the nodes announces the self tracking state on the target node to the peripheral nodes. The wireless sensor network target tracking method has the advantages that the applicability is high, the efficiency is high, and the time delay is little.
Description
Technical field
The present invention relates to wireless sensor network target tracking technique, specifically relate to a kind of wireless sensor network target tracking method.
Background technology
In many application technologies in wireless sensor network, pursuit movement target is a basic function.Because sensor node volume is little, cheap, adopt communication, and sensor network disposition is random, and have the features such as self-organization, robustness and hiding, wireless sensor network is very suitable for location and the tracking of moving target.Due to hardware resource and the limited energy of wireless sensor network, work under bad environment, wireless link is easily disturbed, its working condition can not be guaranteed, network is opened up the features such as general dynamic change is large and is made wireless sensor network target tracking technique become very challenging, the method for tracking target of sensor network is quoted needs stronger requirement of real-time usually, and traditional track algorithm of a lot of present stage is also not suitable for sensor network.
Therefore, need to propose a kind of novel wireless sensor network target tracking method.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the invention provides the wireless sensor network target tracking method that a kind of applicability is strong, tracking efficiency is high.
Technical scheme: for achieving the above object, wireless sensor network target tracking method of the present invention, comprises three phases, is detection-phase, positioning stage and advertisement phase respectively;
Detection-phase: whether occurred by detection method detecting and tracking target, if described tracking target occurs, enters positioning stage;
Positioning stage: current location and the motion state of first being determined described tracking target by localization method, is then recorded current location and the state of described tracking target, then enters advertisement phase;
Advertisement phase: mutual exchange message between node, specifically node to its surroundings nodes send co-positioned seek help or its surroundings nodes of node advertisement oneself to the tracking mode of destination node.
Further, described detection-phase comprises the following steps:
First whether 2-1 periodically detect described tracking target by wave detecting method by the node in wireless sensor network and occur, if described tracking target appears in the monitoring field of described node, then enters 3-2;
Described in 2-2, node detective is about the information of described tracking target, and this information comprises the node ID of described tracking target, the node self-position of described tracking target, described node to the distance of described tracking target;
The information of the described tracking target that node described in 2-3 arrives to whole oneself detective of meshed network broadcast.
Further, described detection method comprises ultrasonic detection method, vibrations technology detecting method, infrared technology detection method and multimedia basics detection method.
Further, described positioning stage specifically comprises the following steps:
4-1 determines three nearest nodes of described tracking target to the distance of described tracking target according to described node, and adopt three limit localization methods to calculate the current location of described tracking target;
The movement velocity of tracking target described in the position calculation that 4-2 utilizes the described tracking target on 3 continuous time points and movement locus;
4-3 records the current location of described tracking target, movement velocity and movement locus.
Further, described advertisement phase specifically comprises the following steps:
The surroundings nodes of tracking target described in 5-1 all broadcasts a notice message, and this message comprises the positional information of this node and the track of described tracking target;
5-2 receives the distance of node calculate to the track of described tracking target of described notice message itself;
5-3 judges whether this distance is less than the threshold value of setting
d, if so, then the node receiving described notice message described in starts and enters tracking mode and simultaneously forward this notice message to other nodes, otherwise described in receive described notice message node abandon this message.
Beneficial effect: compared with the prior art, advantage is that wireless sensor network target tracking method applicability of the present invention is high, and efficiency high time delay is few in the present invention.
Embodiment
Below the present invention is further described.
The wireless sensor network target tracking method that the present invention proposes, comprising three phases, is detection-phase, positioning stage and advertisement phase respectively;
Detection-phase: whether occurred by detection method detecting and tracking target, if described tracking target occurs, enters positioning stage;
Positioning stage: current location and the motion state of first being determined described tracking target by localization method, is then recorded current location and the state of described tracking target, then enters advertisement phase;
Advertisement phase: mutual exchange message between node, specifically node to its surroundings nodes send co-positioned seek help or its surroundings nodes of node advertisement oneself to the tracking mode of destination node;
Wherein said detection-phase comprises the following steps:
First periodically detect described tracking target by wave detecting method by the node in wireless sensor network whether to occur, if described tracking target appears in the monitoring field of described node, then enter 3-2;
Described node detective is about the information of described tracking target, and this information comprises the node ID of described tracking target, the node self-position of described tracking target, described node to the distance of described tracking target;
The information of the described tracking target that described node arrives to whole oneself detective of meshed network broadcast, described detection method comprises ultrasonic detection method, vibrations technology detecting method, infrared technology detection method and multimedia basics detection method;
Described positioning stage specifically comprises the following steps:
Determine three nearest nodes of described tracking target according to described node to the distance of described tracking target, and adopt three limit localization methods to calculate the current location of described tracking target;
The movement velocity of tracking target described in the position calculation utilizing the described tracking target on 3 continuous time points and movement locus;
Record the current location of described tracking target, movement velocity and movement locus;
Described advertisement phase specifically comprises the following steps:
The surroundings nodes of described tracking target all broadcasts a notice message, and this message comprises the positional information of this node and the track of described tracking target;
Receive the distance of node calculate to the track of described tracking target of described notice message itself;
Judge whether this distance is less than the threshold value of setting
d, if so, then the node receiving described notice message described in starts and enters tracking mode and simultaneously forward this notice message to other nodes, otherwise described in receive described notice message node abandon this message.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (5)
1. a wireless sensor network target tracking method, is characterized in that: comprise three phases, is detection-phase, positioning stage and advertisement phase respectively;
Detection-phase: whether occurred by detection method detecting and tracking target, if described tracking target occurs, enters positioning stage;
Positioning stage: current location and the motion state of first being determined described tracking target by localization method, is then recorded current location and the state of described tracking target, then enters advertisement phase;
Advertisement phase: mutual exchange message between node, specifically node to its surroundings nodes send co-positioned seek help or its surroundings nodes of node advertisement oneself to the tracking mode of destination node.
2. wireless sensor network target tracking method as claimed in claim 1, is characterized in that: described detection-phase comprises the following steps:
First whether 2-1 periodically detect described tracking target by wave detecting method by the node in wireless sensor network and occur, if described tracking target appears in the monitoring field of described node, then enters 3-2;
Described in 2-2, node detective is about the information of described tracking target, and this information comprises the node ID of described tracking target, the node self-position of described tracking target, described node to the distance of described tracking target;
The information of the described tracking target that node described in 2-3 arrives to whole oneself detective of meshed network broadcast.
3. wireless sensor network target tracking method as claimed in claim 1 or 2, is characterized in that: described detection method comprises ultrasonic detection method, vibrations technology detecting method, infrared technology detection method and multimedia basics detection method.
4. wireless sensor network target tracking method as claimed in claim 1 or 2, is characterized in that: described positioning stage specifically comprises the following steps:
4-1 determines three nearest nodes of described tracking target to the distance of described tracking target according to described node, and adopt three limit localization methods to calculate the current location of described tracking target;
The movement velocity of tracking target described in the position calculation that 4-2 utilizes the described tracking target on 3 continuous time points and movement locus;
4-3 records the current location of described tracking target, movement velocity and movement locus.
5. wireless sensor network target tracking method as claimed in claim 1, is characterized in that: described advertisement phase specifically comprises the following steps:
The surroundings nodes of tracking target described in 5-1 all broadcasts a notice message, and this message comprises the positional information of this node and the track of described tracking target;
5-2 receives the distance of node calculate to the track of described tracking target of described notice message itself;
5-3 judges whether this distance is less than the threshold value of setting
d, if so, then the node receiving described notice message described in starts and enters tracking mode and simultaneously forward this notice message to other nodes, otherwise described in receive described notice message node abandon this message.
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| CN201510326514.0A CN104955150A (en) | 2015-06-15 | 2015-06-15 | Wireless sensor network target tracking method |
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| CN201510326514.0A CN104955150A (en) | 2015-06-15 | 2015-06-15 | Wireless sensor network target tracking method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107296612A (en) * | 2017-06-13 | 2017-10-27 | 泰康保险集团股份有限公司 | Automatic monitoring method, system and the terminal device of children under guardianship |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107296612A (en) * | 2017-06-13 | 2017-10-27 | 泰康保险集团股份有限公司 | Automatic monitoring method, system and the terminal device of children under guardianship |
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Application publication date: 20150930 |
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