Node positioning method and system

A node positioning and node technology, applied in the field of node positioning methods and systems, can solve problems such as inability to achieve indoor positioning, and achieve the effects of fast query, good management, good versatility and accuracy

Inactive Publication Date: 2013-08-21
百橙物联网络(杭州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the object of the present invention is to provide a node positioning method and device to solve the problem that accurate indoor positioning cannot be achieved in the prior art

Method used

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  • Node positioning method and system
  • Node positioning method and system

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Embodiment Construction

[0040] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0041] see figure 1 , the node positioning method provided by the embodiment of the present invention includes the following steps:

[0042] S101: Deploy a wireless network in the area to be tested in advance, select a reference location, measure the signal strength at each reference location and the nodes that can receive the signal, and store the measurement results in the calibration table;

[0043] This step is the preparatory work before positioning. Firstly, the wireless network is deployed in the area to be tested (such as a certain mine or indoor of a building, etc.). Network deployment is the process of placing fixed nodes in the area to be tested, and these nodes can send out signals with a certain power. According to ...

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Abstract

The invention discloses a node positioning method. The method comprises the following steps of: deploying a wireless network in a to-be-detected area in advance, selecting reference positions, measuring signal strength at the reference positions and nodes capable of receiving signals, and storing measurement results into a calibration table; and during positioning, searching the calibration table, and determining a position most matched with the strength of the signal currently received by a to-be-detected node and the node capable of receiving the signal as the current position of the to-be-detected node. The invention also discloses a node positioning system. By using the method and the system, the positioning can be performed according to the signal strength and a preset matching model, the method and the system can implement undifferentiated positioning for any signal coverage area environment; and regardless of a mine with complex terrain and an indoor environment of a building and the like with relatively regular terrain, the positioning method provided by the embodiment of the invention has high universality and precision.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a node positioning method and system. Background technique [0002] With the rapid increase of data services and multimedia services, people's demand for positioning and navigation is increasing, especially in complex indoor environments, such as airport halls, exhibition halls, warehouses, supermarkets, libraries, underground parking lots, mines, etc. , it is often necessary to determine the location information of the mobile terminal or its holder, facilities and objects indoors. However, due to the limitation of positioning time and complex indoor environment and other conditions, relatively complete indoor positioning technology cannot be well utilized at present. For example, the indoor environment is generally more complicated, there is no fixed mode, and the positioning based on the indoor environment is often interfered by the signal interference of multi-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/02G01S5/02
Inventor 郑小林陈岭姜干成唐炜杨清
Owner 百橙物联网络(杭州)有限公司
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