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A method for acquiring location information of mobile sink nodes in sensor networks

A sensor network, node location technology, applied in network topology, wireless communication, advanced technology, etc., can solve the problem of large location update overhead, and achieve the effect of reducing the total load, reducing the location update load, and prolonging the network life.

Inactive Publication Date: 2016-03-02
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But when the node moves, the location update overhead is large

Method used

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  • A method for acquiring location information of mobile sink nodes in sensor networks
  • A method for acquiring location information of mobile sink nodes in sensor networks
  • A method for acquiring location information of mobile sink nodes in sensor networks

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Embodiment Construction

[0029] The present invention reduces the route update load and route request load by setting the proxy location server and the temporary location server. The main flow of the method of the present invention is as follows: figure 2 shown:

[0030] The first step, the division and numbering of grid areas: the entire network is divided into several basic unit grids, called first-level grids, which are denoted as G here; then each K×K first-level grid is organized into two level grid. Each secondary grid has a unique secondary grid ID, and the primary grids within each secondary grid have a unique local ID. In this way, the ID of the secondary grid and the local ID of the primary grid within the secondary grid constitute a global unique ID for each primary grid.

[0031] like Figure 5 For a secondary grid B, the center coordinates of grid B (x b , y b ), the coordinates of the lower-leftmost point in network space (called the origin) are (x 0 , y 0 ), the side length of t...

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Abstract

The invention discloses a method for acquiring location information of a mobile sink node in a sensor network, which belongs to the technical field of wireless sensor network routing, and reduces routing update load and routing request load by setting a proxy location server and a temporary location server. The method of the present invention can greatly reduce the position update load on the premise of ensuring the real-time performance and accuracy of communication, that is, the total load of the entire sensor network is reduced, the energy consumption of boundary nodes is reduced, and the service life of the sensor network is prolonged.

Description

technical field [0001] The invention belongs to the technical field of wireless sensor networks, relates to the routing technology of wireless sensor networks, and in particular relates to a method for acquiring position information of a mobile sink node in a sensor network. Background technique [0002] The typical working mode of Wireless Sensor Networks (WSN) is as follows: a large number of sensor nodes are deployed around the monitoring area, and the sensor nodes quickly construct a network system through self-organization. like figure 1 As shown, in the sensor network, each sensor node (Sensornode) sends the collected detection information to the sink node (Sinknode) through relay transmission, and finally reaches the management node through the Internet or satellite. Users configure and manage the sensor network through management nodes, publish monitoring tasks and collect monitoring data. [0003] The routing technology of wireless sensor network has always been a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/02H04W84/18
CPCY02D30/70
Inventor 于富财孔蒙蒙李光友胡光岷
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA