Indoor positioning method and system, terminal, indoor combiner and indoor antenna

An indoor antenna and indoor positioning technology, applied in positioning, radio wave measurement systems, instruments, etc., can solve the problems of poor positioning stability, low precision, and large engineering volume, and achieve the goal of reducing engineering volume and improving stability and accuracy Effect

Inactive Publication Date: 2012-10-17
BEIJING UNIV OF POSTS & TELECOMM +1
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  • Abstract
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Problems solved by technology

[0007] In order to solve the problems of poor positioning stability, low precision and large engineering quantity existing in the existing positioning technology, an embodiment of the present invention provides an indoor positioning method and system, as well as a terminal, an indoor combiner, and an indoor antenna

Method used

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  • Indoor positioning method and system, terminal, indoor combiner and indoor antenna
  • Indoor positioning method and system, terminal, indoor combiner and indoor antenna
  • Indoor positioning method and system, terminal, indoor combiner and indoor antenna

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Embodiment Construction

[0029] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0030] figure 1 It is a flowchart of an embodiment of the indoor positioning method of the present invention. Such as figure 1 As shown, the indoor positioning method includes:

[0031] Step 105, the terminal receives navigation messages sent by at least three indoor antennas, and each navigation message includes at least a synchronization header, antenna identification information, and antenna coordinates;

[0032] Step 106, determining at least three TDOAs (Time Difference of Arrival, Time Difference of Arrival) from any two indoor antennas among the at least three indoor antennas to the terminal according to the navigation message;

[0033] Specifically, the time difference between the arrival time of the navigation message sent ...

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Abstract

The invention provides an indoor positioning method, an indoor positioning system, a terminal, an indoor combiner and an indoor antenna, and relates to the field of wireless communication. The indoor positioning method comprises the following steps of: receiving navigation messages sent by at least three indoor antennas by the terminal, wherein each navigation message at least comprises a synchronous head, antenna identification information and an antenna coordinate; determining at least three time differences of arrival (TDOA) from any two indoor antennas in the at least three indoor antennas to the terminal according to the navigation messages; and determining the current position coordinate of the terminal according to the TDOA and the antenna coordinates of the at least three indoor antennas. By using the indoor positioning method, the indoor positioning system, the terminal, the indoor combiner and the indoor antenna, through the above scheme, the stability and the precision of positioning are improved; moreover, a small quantity of the antennas are only necessary to arrange; and the engineering quantity is reduced.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to an indoor positioning method and system, a terminal, an indoor combiner, and an indoor antenna. Background technique [0002] In recent years, with the continuous improvement of people's material living standards, people's demand for location-based services is also increasing day by day, such as in personnel dispatching, asset management, emergency rescue, safety monitoring, safety dispatching, intelligent transportation, map navigation, travel guides, etc. There is a wide demand for positioning; especially in emergency situations, such as emergency rescue, disaster relief emergency command and dispatch and other special application scenarios, positioning information is even more important. [0003] With the in-depth research of pervasive computer and distributed communication technology, indoor wireless communication and network technology develop rapidly, derived f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S5/10
Inventor 邓中亮李序袁协余彦培张宇田向伟刘晓燕
Owner BEIJING UNIV OF POSTS & TELECOMM
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