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RSSI (received signal strength indicator)-based multi-sensor fusion mobile node tracking method

A multi-sensor fusion, mobile node technology, applied in electrical components, wireless communication, network topology, etc., can solve problems such as limited accuracy and complex calculation, and achieve the effect of improving accuracy and positioning accuracy

Inactive Publication Date: 2012-07-04
SHANGHAI UNIV OF ENG SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although some people have made some explorations in this area, there are still shortcomings such as complex calculations and limited precision.

Method used

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  • RSSI (received signal strength indicator)-based multi-sensor fusion mobile node tracking method
  • RSSI (received signal strength indicator)-based multi-sensor fusion mobile node tracking method
  • RSSI (received signal strength indicator)-based multi-sensor fusion mobile node tracking method

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Embodiment Construction

[0056] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0057] as attached figure 1 As shown, the wireless sensor network 100 includes several nodes and a monitoring station 3, and each node is a wireless sensor network terminal, which can realize information sending and receiving. Among these nodes, there is at least one mobile node 1, and the rest are fixed nodes 2. In addition, the fixed node 2 knows the location information of this node. One of the fixed nodes 2 is a sink 21, and the sink 21 is connected to the monitoring station 3 by wired or wireless means.

[0058] The present invention comprises the following steps:

[0059] Step 1, the monitoring station 3 confirms the tracking time interval and sends it to the mobile node 1.

[0060] The system user inputs the tracking time interval T and the tracked mobile node 1 on the monitoring station 3 according to the application needs, and the monitorin...

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Abstract

The invention discloses an RSSI (received signal strength indicator)-based multi-sensor fusion mobile node tracking method, which includes: determining a monitoring interval and transmitting the interval to a mobile node; enabling the mobile node to transmit monitoring signal indicators at regular time according to the acquired time interval; utilizing surrounding nodes to monitor RSSIs so as to determine anchor nodes; and enabling the anchor nodes to process data and transmit the data to an information sink, forwarding the data from the information sink to a monitoring station, and utilizing the monitoring station to fuse the data of the anchor nodes so that real-time tracking data are acquired. The method measures the RSSIs of the mobile node for transmitting pulse signal indicators at the periodic interval through the anchor nodes, determines information such as the position, the speed, the acceleration and the like of the mobile node and realizes tracking and positioning of the mobile node by forwarding the information, the tracking time interval is adjustable, influence of bad data is partially eliminated, positioning precision is improved, information such as the speed, the acceleration and the like which cannot be provided by most tracking technology is provided, tracking tasks of multiple mobile targets can be simultaneously realized, and the method is improved in precision as compared with single-sensor tracking technology.

Description

technical field [0001] The present invention relates to the field of radio tracking and positioning, in particular to an anchor node determining the position of a mobile node by measuring the RSSI (Received Signal Strength Indicator, received signal strength) of a signal sent by the mobile node in a wireless sensor network (Wireless sensor network, WSN) , speed, acceleration and other information, and forward the information to realize the tracking and positioning method of the mobile node. Background technique [0002] Since it has been hailed as one of the 21 most influential technologies in the 21st century and one of the top 10 technologies that have changed the world, Wireless Sensor Network (WSN) technology has attracted people's attention day by day. The wireless sensor network is composed of a large number of cheap micro-sensor nodes deployed in the monitoring area, and forms a multi-hop self-organizing network through wireless communication. , and publish to observ...

Claims

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Application Information

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IPC IPC(8): H04W64/00H04W84/18
Inventor 陈益平
Owner SHANGHAI UNIV OF ENG SCI
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