Indoor positioning method, device and system fusing 5G communication and UWB

An indoor positioning and 5G technology, applied in the field of indoor positioning that integrates 5G communication and UWB, can solve the problems of low positioning accuracy and indoor positioning accuracy that cannot meet the requirements of high-precision positioning

Pending Publication Date: 2021-05-11
HULUNBEIER ELECTRIC POWER BUREAU OF EAST INNER MONGOLIA ELECTRIC POWER COMPANY +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although GPS technology has been widely used, the indoor positioning accuracy cannot meet the high-precision positioning requirements due to the obstruction of satellite positioning signals by buildings, etc.
The commonly used traditional indoor positioning methods include WIFI positioning, Bluetooth positioning and ultrasonic positioning, but these positioning methods all have the problem of low positioning accuracy.

Method used

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  • Indoor positioning method, device and system fusing 5G communication and UWB
  • Indoor positioning method, device and system fusing 5G communication and UWB
  • Indoor positioning method, device and system fusing 5G communication and UWB

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0083] First introduce UWB communication technology: UWB communication technology is a new communication technology. It does not need to use the carrier in the traditional communication system, but transmits data by sending and receiving extremely narrow pulses with nanoseconds or less, so as to have a bandwidth of GHz order, UWB technology has strong penetrating power, high performance It has the advantages of low power consumption, good anti-multipath effect, and can provide precise positioning accuracy. Therefore, UWB communication technology can be applied to the positioning tracking and navigation of indoor stationary or moving objects and people, and the positioning accuracy is very high.

[0084] UWB positioning technology is a positioning technology developed from UWB communication technology. It uses the two-way time-of-flight method (TW-TOF, two way-time offlight). Each positioning base station module will generate an independent Time stamp, the transmitter of the p...

Embodiment 2

[0095] Indoor positioning refers to the realization of position positioning in the indoor environment. It mainly uses wireless communication, base station positioning, inertial navigation positioning and other technologies to integrate to form an indoor position positioning system, so as to realize the position monitoring of people and objects in space. The present invention uses a base station positioning indoor positioning method. The commonly used position calculation method in the base station-based indoor positioning method is the signal strength positioning method. This method is to detect the signal strength of each base station received by the object to be positioned. Calculate the distance between the object and each positioning base station, so as to obtain the positioning method of the position of the object through geometric operations. This method is due to too many factors in the attenuation speed of the signal strength, resulting in a large fluctuation of the RSSI...

Embodiment 3

[0106] When there are multiple positioning intersections between the positioning straight line and the sphere in Example 2, the distance value between any two positioning intersections is calculated, and the middle of the two corresponding positioning intersections with the smallest distance value is selected. point;

[0107] Determine the direction straight line where the line segment formed by the midpoint and the center of the sphere is located;

[0108] Among the multiple directional intersection points of the directional straight line and the sphere, the coordinates of the directional intersection point closest to the midpoint are the coordinates of the object to be positioned.

[0109] When multiple UWB positioning base stations and multiple 5G micro base stations are set in the building where the object to be located is located, there will be multiple positioning intersections. like Figure 5 As shown, when there is a UWB positioning base station and two 5G micro base...

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Abstract

The invention relates to an indoor positioning method, device and system fusing 5G communication and UWB. The azimuth information of a positioned object is measured by using a 5G direction finding technology (AOA), the distance information of the positioned object is measured by using a UWB distance measurement technology (TOA), and the azimuth information and the distance information are fused to obtain the specific position coordinates of the positioned object; therefore, the advantages of high positioning and ranging precision of the UWB base station and high direction finding precision of the 5G base station can be brought into full play, the indoor positioning task is completed together, the cost is low, and the positioning precision can meet the requirement of indoor high-precision positioning.

Description

technical field [0001] The present invention relates to the technical field of indoor positioning, in particular to an indoor positioning method, device and system integrating 5G communication and UWB. Background technique [0002] With changes in industries and lifestyles, high-precision location information of indoor objects has become an important parameter. Although GPS technology has been widely used, the indoor positioning accuracy cannot meet the requirements of high-precision positioning due to the occlusion of satellite positioning signals by buildings and the like. The commonly used traditional indoor positioning methods include WIFI positioning, Bluetooth positioning and ultrasonic positioning, but these positioning methods all have the problem of low positioning accuracy. In order to solve the problems of the prior art, it is urgent to provide a high-precision indoor positioning method. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/021H04W4/33H04W64/00
CPCH04W4/021H04W64/00H04W4/33
Inventor 张赢曹春诚嵇泽林蹇杭利李江
Owner HULUNBEIER ELECTRIC POWER BUREAU OF EAST INNER MONGOLIA ELECTRIC POWER COMPANY
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