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A method and device for precise positioning based on wireless signals

A wireless signal and precise positioning technology, applied in the field of communication, can solve the problems of Gaussian model fit, high cost, and difficulty in precise positioning of people and objects, and achieve the effects of strong environmental adaptability, high positioning accuracy, and improved indoor positioning accuracy.

Active Publication Date: 2018-06-26
湖南泰利智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the actual indoor positioning process, the Gaussian model does not necessarily fit well. Therefore, the indoor positioning method of the HORUS system has low accuracy and high cost.
[0009] It can be seen that the indoor environment is a complex environment. During the transmission process, the signal is affected by the walls of people and objects in the room, and the attenuation is relatively large, which brings difficulties to the precise positioning of people and objects in the indoor environment.
Setting reference reference points not only costs positioning costs, but the reference points themselves are also easily affected by the indoor environment

Method used

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  • A method and device for precise positioning based on wireless signals
  • A method and device for precise positioning based on wireless signals
  • A method and device for precise positioning based on wireless signals

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] figure 1 It is a technical flow chart of Embodiment 1 of the present invention, combining figure 1 , in a precise positioning method based on wireless signals in this application, the overall workflow of the mobile terminal side and the cloud side is as follows:

[0062] Step 101: within a unit time, the mobile terminal obtains and optimizes its own geographic location information, and obtains the optimized geographic location information of the mobile terminal;

[0063] The mobile terminal can obtain its own rough geographical location information through its own GPS positioning or communication base station positioning, but due to the influence of weather factors, radio, shelters and other interference factors, within a period of time, the positioning of the mobile terminal is not only one As a result, some errors may occur. Therefore, if you want to obtain more accurate positioning, the mobile terminal needs to optimize its own geographical location information to o...

Embodiment 2

[0077] figure 2 It is the technical flow chart of Embodiment 2 of the present application, combined with figure 2 , in a precise positioning method based on wireless signals in this application, data preparation is required in advance, and the following two steps are the process of data preparation, but it is worth noting that there is no sequence between the following two steps in the embodiment of the present invention order.

[0078] Step 201: By testing the reference signal strength when receiving and sending signals between different devices, establish a signal strength comparison table when the mobile terminal transmitting the signal and the mobile terminal receiving the signal are separated by a unit distance.

[0079] The transmission of wireless signals has a certain distance limit. As the transmission distance increases, the strength of wireless signals gradually weakens. On the other hand, the platforms and systems of mobile devices are different, and the mechani...

Embodiment 3

[0086] In the embodiment of the present invention, the operation steps on the mobile terminal side are mainly as follows:

[0087] Step 301: within a unit time, the mobile terminal obtains and optimizes its own geographic location information, and obtains the optimized geographic location information of the mobile terminal;

[0088] In the embodiment of the present invention, the mobile terminal obtains its own geographic location information through a positioning method, and the positioning method includes GPS positioning, Beidou positioning, WiFi positioning, geomagnetic positioning, and base station positioning;

[0089] The principle of GPS positioning mainly depends on the satellites in the space part. The space part of GPS is composed of 24 satellites (21 working satellites and 3 spare satellites). (4 on each orbital plane), the orbital inclination is 55°. The distribution of satellites makes it possible to observe more than 4 satellites anywhere in the world at any tim...

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Abstract

The application relates to an accurate positioning method based on wireless signals and an apparatus thereof, and discloses a positioning method and an apparatus. In unit time, a cloud receives mobile terminal data from a mobile terminal and calculates between-equipment distances between the mobile terminal and other mobile terminals according to the mobile terminal data; the cloud finds other mobile terminals which can be searched by the mobile terminal through wireless signals according to identifications of the other mobile terminals; accurate relative positions between the mobile terminal and the other mobile terminals are calculated according to optimized geographical position of the mobile terminal and the between-equipment distances between the mobile terminal and other mobile terminals; and the cloud outputs the relative positions and the optimized absolute positions to the mobile terminal so as to draft a position real-time information graph. The invention realizes relative positioning of the mobile terminal in multiple of environments and multiple of conditions, raises the absolute positioning precision and simultaneously obtains relative position relations between the mobile terminal, buildings or barriers.

Description

technical field [0001] The present application belongs to the technical field of communication, and in particular, relates to a precise positioning method and device based on wireless signals. Background technique [0002] In recent years, with the popularity of mobile devices, positioning technology services have become more and more popular among people. Both indoor positioning and outdoor positioning have brought a lot of convenient experience to people's life. [0003] The well-known GPS or AGPS positioning of mobile devices relies on satellites and mobile device base stations for location information acquisition. Some mobile devices without GPS functions can also use the LBS geographic location information service of mobile device communication base stations for positioning. These technologies mainly Used for outdoor positioning. [0004] The basic principle of GPS positioning is to use the trigonometric function ranging method. It takes a period of time for the signa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S5/02
CPCG01S5/0252G01S5/0284
Inventor 王健
Owner 湖南泰利智能科技有限公司