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Method and system for positioning

A positioning method and final position technology, applied in the transmission system, service based on location information, transmission monitoring, etc., can solve the problem of insufficient positioning accuracy of the positioning system

Active Publication Date: 2013-10-30
ZTE CORP +1
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  • Abstract
  • Description
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Problems solved by technology

[0010] The technical problem to be solved by the present invention is to provide a positioning method and system to solve the problem of insufficient positioning accuracy of existing positioning systems

Method used

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  • Method and system for positioning

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Embodiment Construction

[0085] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0086] An embodiment of the present invention provides a positioning method, including:

[0087] Perform positioning based on the access point of the wireless local area network, and obtain the initial estimated position of the user equipment;

[0088] Obtain the heading angle and speed information of the user equipment;

[0089] Correcting the initial estimated position according to the heading angle and speed information to obtain final position information.

[0090] Wherein, the positioning based on the access point of the wireless local area network includes:

[0091] ...

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Abstract

The invention provides a method for positioning, which includes: carrying out positioning based on an access point of a wireless local network, and obtaining an estimated initial position of a user device; obtaining course angle and speed information of the user device; and correcting the estimated initial position according to the course angle and speed information, and obtaining final position information. The invention also provides a system for positioning. With the method and the system for positioning, positioning error caused by strength floating of received information and accumulative error caused by sensor noise are corrected, so that a combined positioning system with low cost and high precision is obtained.

Description

technical field [0001] The invention relates to the field of wireless network positioning, in particular to a positioning method and system. Background technique [0002] The WLAN-based positioning system has the advantages of low cost, high precision, and wide application range (indoor and outdoor), and has achieved great success in location-based services such as emergency rescue, intelligent transportation, and indoor positioning and navigation. However, there are still two problems that need to be solved urgently: (1) The fluctuation of Received Signal Strength (RSS) caused by factors such as multipath interference seriously deteriorates the positioning accuracy of WLAN; In areas not covered by APs, WLAN positioning fails due to the absence of APs. [0003] In order to solve the above problems, various methods have been proposed, which can be divided into the following three categories: [0004] 1. WLAN positioning system based on time diversity and probability distrib...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W64/00H04B17/00H04W4/02
CPCH04W4/02H04W4/027
Inventor 刘兴川李超林孝康
Owner ZTE CORP
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