Target positioning method under random deployment of wireless sensor network
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A wireless sensor network and target positioning technology, which is applied in the application field of wireless networks and can solve problems such as rule deployment, inability to complete nodes, and complex and changeable field environments.
Active Publication Date: 2014-01-22
西安华通天地信息科技有限公司
View PDF3 Cites 17 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0011] The above four existing passive positioning methods all require regular deployment of nodes. For large-scale scenarios, this deployment method obviously takes a lot of energy and resources, and the field environment is complex and changeable. In most cases, it is impossible to complete the regular deployment of nodes. Deployment, therefore, the above method is difficult to apply to target positioning in large-scale wild environment
Method used
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
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0120] The inventor has carried out actual scene experiment verification on some situations in the school square, and the specific scenes are as follows:
[0121] Step 1, deploy the experimental scenario:
[0122] Such as Figure 10 As shown, the applicant randomly selected a test monitoring area of 50 square meters in the school square, and randomly deployed 6 nodes. The node deployment position coordinates are as follows Figure 9 As shown, the height of the nodes from the ground is 0.95m. Due to the short distance between the nodes, any two nodes can communicate directly, forming a total of 15 links. A base station is deployed outside the detection area to transmit data to a computer database.
[0123] Step 2, reference data collection:
[0124] Links are numbered 1, 2, ..., 15 respectively. Record the RSSI value of each link without a target Due to the small number of nodes, the location information of each node is recorded manually in this experiment.
[0125] St...
Embodiment 2
[0134] The steps of this embodiment are the same as those of Embodiment 1, the difference is that the node deployment method is as follows Figure 12 and Figure 13 As shown in , the estimated position of the target is obtained after the corresponding positioning steps are performed.
[0135] Such as Figure 14 As shown, the final positioning result of the target is (-0.14m, -0.15m), the real position of the target is (0.0m, 0.0m), and the error is 0.2m.
[0136] The specific experimental data are shown in Table 2:
[0137] Table 2 Measured and calculated values of experimental parameters
[0138]
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
Login to view more
Abstract
The invention discloses a target positioning method under random deployment of a wireless sensor network. The target positioning method under random deployment of the wireless sensor network specifically comprises the following steps of 1) constructing a wireless sensor network; 2) collecting reference data; 3) detecting the RSSI (received signal strength indicator) value of each link in real time; 4) selecting three affected links, and determining a target possible position area according to three different distribution situations of a point of intersection formed by the three selected links; 5) according to the RSSI estimation values of three links when the target is on M*N possible position points and the practically measured RSSI values of the three links, determining the target position. The method disclosed by the invention can adapt to the complex and changing field environment without rule deployment of a wireless sensor network node, the target in the large-scale scene area is subjected to detection positioning under the condition of the random deployment of the wireless sensor network, time and labor are saved, the positioning result is accurate, and the target positioning method under random deployment of the wireless sensor network has a good application prospect.
Description
technical field [0001] The invention belongs to the application field of wireless networks, and in particular relates to a method for passive target positioning under the condition of random deployment of wireless sensor networks, and the method is applied to the positioning of wild animals. Background technique [0002] Wild animals have important ecological status and functions in nature, so how to effectively monitor and protect them is particularly important. Traditional wildlife protection mostly uses manual recording and statistics, which has many disadvantages, such as: lack of long-term and real-time performance, and also has certain difficulties and dangers. In addition, it is difficult to analyze the time, space and phenomena of the obtained data. Comprehensive analysis. The emergence of wireless sensor networks provides technical support for solving the above problems. [0003] The wireless sensor network is composed of a large number of distributed sensor nodes...
Claims
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
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more