Method and system for cooperatively locating heterogeneous network based on WLAN and WSN

A heterogeneous network and collaborative positioning technology, applied in the field of communication, can solve the problems that the reliability and stability are greatly affected by environmental factors, and the positioning accuracy of WSN is not high, so as to achieve the effects of improving anti-interference ability, fast and accurate positioning, and reducing costs

Inactive Publication Date: 2014-01-01
MAIPU COMM TECH CO LTD
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  • Abstract
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Problems solved by technology

[0008] The technical problem to be solved by the present invention is to overcome the defects in the prior art that only using the wireless local area network WLAN or the wireless sensor network WSN positioning accuracy is not high, and the

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  • Method and system for cooperatively locating heterogeneous network based on WLAN and WSN
  • Method and system for cooperatively locating heterogeneous network based on WLAN and WSN
  • Method and system for cooperatively locating heterogeneous network based on WLAN and WSN

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Example Embodiment

[0036] The present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments.

[0037] like figure 1 Shown is a flow chart of a heterogeneous network co-location method based on WLAN and WSN according to an embodiment of the present invention, which specifically includes the following steps:

[0038] A. Build a hybrid positioning system in the positioning area:

[0039] Set the wireless access point AP in the positioning area to build a wireless local area network WLAN; at the same time build a wireless sensor network WSN in the positioning area; In general, only 4 AP signals can be received. In actual operation and application, the existing WLAN network or WSN network can also be used without rebuilding the WLAN network or WSN network.

[0040] B. Use WLAN positioning technology to estimate the position of the node to be tested:

[0041] In the constructed WLAN network, the off-line data collection is carried out for ...

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Abstract

The invention discloses a method and system for cooperatively locating a heterogeneous network based on WLAN and a WSN. The method comprises the following steps that a WLAN and WSN mixed locating system for the heterogeneous network is built in a locating area; N sets of data closest to the sampling information of a node to be measured are selected through a WLAN locating technology; the position of the node to be measured is estimated based on a WSN locating technology; cooperative locating is carried out through the WLAN and the WSN, the data selected through the WLAN technology are compared with estimation coordinates in the WSN locating technology, and the set of closest position information is selected as the final estimation position of the node to be measured. According to the method and the system, the advantages that WSN networking is flexible and WLAN network transmission speed is high are effectively combined, all technical defects are avoided, through the existing WLAN, the existing WSN and the designed network fusion algorithm, locating precision is obviously improved, and meanwhile signal flying value points caused by a complex and changeable environment can be removed.

Description

technical field [0001] The invention belongs to the technical field of communication, and relates to a positioning method and system, in particular to a heterogeneous network cooperative positioning method and system based on WLAN and WSN. Background technique [0002] Wireless Local Area Networks (WLAN) is a network for wireless communication within a local area using wireless media or media. The transmission media of WLAN includes radio frequency radio waves and light waves. The positioning based on the wireless local area network is to analyze the characteristic information of the received radio signal in the wireless local area network, and calculate the position of the measured object according to a specific algorithm. [0003] A wireless sensor network (Wireless Sensor Network, WSN) is a wireless network composed of a large number of stationary or moving sensors in a self-organizing and multi-hop manner to cooperatively perceive, collect, process and transmit the perce...

Claims

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Application Information

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IPC IPC(8): H04W4/04H04W64/00
Inventor 于秦肖志辉王英
Owner MAIPU COMM TECH CO LTD
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