Target tracking method for wireless multimedia sensor network

A multimedia sensor and target tracking technology, applied in network topology, wireless communication, advanced technology, etc., can solve the problems of communication energy consumption, and achieve the effect of ensuring service life, extending network life, and saving energy

Inactive Publication Date: 2010-10-06
NANJING UNIV OF POSTS & TELECOMM
4 Cites 20 Cited by

AI-Extracted Technical Summary

Problems solved by technology

The accuracy and energy of this method are self-adaptive. After obtaining the data that meets the conditions, the following tracking can be performed....
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Method used

Step 3) the region to be monitored is estimated according to the wireless sensor network complete coverage model the quantity of the image sensor node to be deployed and the quantity of the sensor node that the GPS module is housed, reduces cost as far as possible, deploys this in region The three kinds of nodes can be deployed in large quantities due to the low cost of ordinary sensor nodes and t...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Abstract

The invention discloses a target tracking method for a wireless multimedia sensor network, which is mainly used for solving the target tracking problem in the wireless multimedia sensor network. The method comprises three nodes, namely a common sensor node, a sensor node provided with a GPS module and an image sensor node with adjustable direction. Due to lower cost and lower energy consumption, the common sensor node can be greatly thrown into the network and takes charge of abnormality detection, target positioning and data transmission; the sensor node provided with the GPS module has the main functions of acquiring the position of a node and serving as the common sensor node; and the image sensor node has the main function of target identification. Target tracking is finished by mutual cooperation of the three nodes, and calculation and storage of a target track are finished by a base station, so the cost is saved and the service life of the network is prolonged.

Application Domain

Energy efficient ICTNetwork topologies +1

Technology Topic

Data transmissionImage sensor +5

Image

  • Target tracking method for wireless multimedia sensor network
  • Target tracking method for wireless multimedia sensor network
  • Target tracking method for wireless multimedia sensor network

Examples

  • Experimental program(1)

Example Embodiment

[0038] The invention uses common sensor nodes, sensor nodes equipped with GPS modules and image sensor nodes with adjustable directions to cooperate with each other to complete target tracking. Each node in the network can play its own advantages, thereby saving costs and prolonging the life of the network, and can complete target tracking in real time.
[0039] The target tracking method in the wireless multimedia sensor network proposed by the present invention has the following steps:
[0040] Step 1) The types of nodes in the network and their functions. The network mainly deploys three types of nodes: ordinary sensor nodes, sensor nodes equipped with GPS modules, and image sensor nodes with adjustable directions. The main functions of ordinary sensor nodes are abnormal detection, Target positioning and data transmission; the main function of sensor nodes equipped with GPS modules is to obtain the position of the node itself and the function of ordinary sensor nodes; the main function of image sensor nodes is to identify the target, that is, to check whether the abnormality found in the network is sensed by the system Interested.
[0041] Step 2) Establish a target feature database on the image sensor node. The target feature database stores the information of the target that the system is interested in.
[0042] Step 3) Estimate the number of image sensor nodes to be deployed and the number of sensor nodes equipped with GPS modules for the area to be monitored based on the wireless sensor network full coverage model, to minimize the cost, and deploy these three nodes in the area , Because the cost of ordinary sensor nodes is lower, the energy consumed is small, and it can be deployed in large quantities.
[0043] Step 4) After the node is deployed, initialize the nodes in the network. The sensor node equipped with GPS module first obtains its own position, and then broadcasts its position to other nodes, and other nodes are based on the sensor node equipped with GPS module. Calculate your position in the network. The sensor nodes equipped with GPS modules immediately begin to perform the functions of ordinary sensor nodes to make them fully utilized.
[0044] Step 5) Cluster the nodes in the network according to the GAF algorithm. When the cluster head node dies or set a clock, cluster again when the time is up.
[0045] Step 6) All nodes in each cluster report their ID number and location to the cluster head node. The ID numbers of ordinary sensor nodes and sensor nodes equipped with GPS modules in the network start with the letter c, and the ID numbers of the image sensor nodes start with the letter m in order to distinguish the nodes in the network.
[0046] Step 7) After the cluster head node receives the information of the nodes in the cluster, it saves the node information and causes the nodes in the cluster to enter the sleep state according to the dynamic sleep scheduling mechanism.
[0047] Step 8) The node in the monitoring state detects the monitoring area. Once an abnormality is found, the target is marked, and the nodes around the target are used to locate the target, and the target mark and the calculated target position are reported to the cluster head node. Go to step 9), otherwise continue to monitor.
[0048] Step 9) After the cluster head node receives the data, it wakes up the image sensor node starting with m that is closest to the target location.
[0049] Step 10) After the image sensor node is awakened, adjust the direction of the image sensor to the position of the target by adjusting the direction.
[0050] Step 11) The image sensor starts to collect the image of the target, and performs feature matching between the obtained target image and the information in the target feature database to see if it is a target of interest to the system. If it is not the target that the system is interested in, it is reported to the cluster head node. The target does not need to be tracked. The image sensor node enters the dormant state, go to step 12), otherwise go to step 13).
[0051] Step 12) After receiving the information, the cluster head node immediately tells the nodes in the cluster and other cluster head nodes that this target does not need to be tracked anymore, and other cluster head nodes broadcast to the nodes in the cluster, go to step 8).
[0052] Step 13) When the target leaves the monitoring range of the image sensor node, the image sensor node reports the time and position of the detected target and the current position of the target to the cluster head node.
[0053] Step 14) After receiving the location information of the target, the cluster head node sends the information transmitted by the node to the base station through data transmission between the cluster head nodes, and at the same time determines whether the target is about to leave the monitoring area, and if so, go to step 16). Otherwise, if the target is still within the range of the cluster, the normal sensor node in the area where the target is located is first woken up to locate the next position of the target; if the edge position of the cluster has been reached, the target position is reported to the cluster of the adjacent cluster For the head node, the target is located by the next cluster, go to step 15).
[0054] Step 15) After the common sensor node locates the target, it reports the target position to the cluster head node, and then proceeds to step 14).
[0055] Step 16) After the base station receives the data from the cluster head node, it processes the data, calculates the trajectory of the target in the monitoring area and saves it.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

no PUM

Description & Claims & Application Information

We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Similar technology patents

Overheat protection method and circuit and mobile terminal

InactiveCN105958442AGuaranteed service lifeExtended service lifeEmergency protective arrangements for automatic disconnectionDevice failurePower consumption
Owner:VIVO MOBILE COMM CO LTD

Single-layer four-strand non-rotating steel wire rope and manufacturing process thereof

InactiveCN102373631AReduce the chance of scrappingGuaranteed service lifeTextile cablesLubricationEngineering
Owner:贝尔卡特(青岛)钢丝产品有限公司

Detection method and detection device for oil blockage of air conditioning system, and air-conditioner

ActiveCN105465968AAvoid Capability DecayGuaranteed service lifeMechanical apparatusSpace heating and ventilation safety systemsRefrigerantUltrasound attenuation
Owner:GD MIDEA AIR-CONDITIONING EQUIP CO LTD +1

Inter-plate connector assembly and sub-plate plug thereof

ActiveCN105811150AGuaranteed service lifeEnsure consistencyCouplings bases/casesTwo-part coupling devicesContact element
Owner:CHINA AVIATION OPTICAL-ELECTRICAL TECH CO LTD

Printer with temperature detection and efficient heat dissipation functions

InactiveCN104589813AGuaranteed printing qualityGuaranteed service lifeOther printing apparatusPower circuitsInternal temperature
Owner:WIIMEDIA SOFTWARE

Classification and recommendation of technical efficacy words

  • Guaranteed service life
  • Save energy

High efficiency air conditioner condenser fan

InactiveUS20050281672A1Save energyDependable electric load reductionPropellersPump componentsPower savingAerospace engineering
Owner:UNIV OF CENT FLORIDA RES FOUND INC

People also interested in

Sensor nodeReal-time computingEnergy consumptionBase stationHigh level techniques
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2023 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap