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An indoor navigation system and its precise positioning method

A precise positioning and indoor navigation technology, applied in the field of navigation systems, can solve the problems of large positioning errors, noise, signal offset, etc., and achieve the effect of small errors

Active Publication Date: 2017-12-01
JIANGSU WANWEI AISI NETWORK INTELLIGENT IND INNOVATION CENT
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current indoor positioning technology can be divided into three categories: inertial navigation system, the disadvantage is that the signal has offset and noise, and the positioning error is large; mechanical wave system, using ultrasonic and multilateral positioning technology to calculate the user's position; electromagnetic wave system, including visible light, infrared, etc.

Method used

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  • An indoor navigation system and its precise positioning method
  • An indoor navigation system and its precise positioning method
  • An indoor navigation system and its precise positioning method

Examples

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Embodiment Construction

[0016] Such as figure 1 As shown, an indoor navigation system includes a server center, several wireless APs, and terminal equipment; the terminal equipment, several wireless APs, and the server center are all connected through an internal LAN; the server center includes a WEB server, an application server, and a database server , data interaction between the three through wired connections; terminal devices include mobile terminals and fixed terminals, mobile terminals include mobile phones or other handheld devices, and fixed terminals include fixed touch screens.

[0017] On the server side, the administrator sets user information, wireless equipment, floor company and other information, and the mobile terminal or fixed touch screen is connected to the server to display or query the information of each floor or company, display the 3D model of the building, and dynamically count the information of each floor according to the database information. ; It is also possible to lo...

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Abstract

The invention discloses an indoor navigation system and a method for accurately positioning by virtue of the indoor navigation system. The navigation is accurate in the indoor complex scene. Compared with the prior art, the problem that the existing outdoor navigation technology is incapable of positioning in the room is solved; the accurate navigation is realized in the indoor complex scene; compared with the existing indoor positioning technology, the error is relatively small; the system is used for receiving signals which are transmitted by a wireless AP on the basis of an Android operation system platform, obtaining the accurate position in the building by an accurate positioning algorithm and planning a navigation path for a user by virtue of a coordinate conversion algorithm.

Description

technical field [0001] The invention relates to the field of navigation systems, in particular to a portable system for indoor navigation and a method for precise positioning thereof. Background technique [0002] With the advent of the era of rapid development of information technology, indoor positioning and navigation technology plays an important role in more and more applications. Although the global satellite positioning system (GPS) has excellent positioning performance in outdoor environments, it is not suitable for indoor environments. Because GPS satellite signals cannot penetrate too thick walls, navigation equipment will not be able to locate satellite signals completely in large buildings, underground buildings, and high-rise buildings. Indoor positioning has become the focus of research and development of positioning technology. [0003] Indoor navigation and positioning technology can bring great convenience to people's life and work. Portable devices such a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C21/00
CPCG01C21/206
Inventor 高阳俞亚君范剑锋陈兴国吴权罗雨乐
Owner JIANGSU WANWEI AISI NETWORK INTELLIGENT IND INNOVATION CENT
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