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Bluetooth positioning system, Bluetooth positioning method and Bluetooth antenna array thereof

An antenna array and Bluetooth positioning technology, applied in positioning, radio wave measurement system, wireless communication, etc., can solve the problems of mobile station size and cost impact, and solve the calculation problem of time difference, miniaturization and low power consumption Effect

Active Publication Date: 2017-12-22
深圳市昇润科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this kind of technology needs to add new hardware on the mobile station, which will have a negative impact on the size and cost of the mobile station

Method used

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  • Bluetooth positioning system, Bluetooth positioning method and Bluetooth antenna array thereof
  • Bluetooth positioning system, Bluetooth positioning method and Bluetooth antenna array thereof
  • Bluetooth positioning system, Bluetooth positioning method and Bluetooth antenna array thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0075] Such as image 3 As shown, the Bluetooth transmitting module 100 transmits the Bluetooth signal 600, the Bluetooth antenna array 210 on the Bluetooth receiving module 200 receives the Bluetooth signal 600, and the signal analysis module 220 on the Bluetooth receiving module 200 measures the Bluetooth signal 600 by the first Bluetooth receiving antenna When 211, 212, 213 and 214 are received, the incident angle of the Bluetooth signal 600 on the antenna can be expressed as θi,j=1to 4, and the complementary angle to the incident angle is image 3 θ1, θ2, θ3, θ4 shown in .

[0076] Such as image 3 As shown, the Bluetooth transmitting module 100 transmits the Bluetooth signal 600, the Bluetooth antenna array 210 on the Bluetooth receiving module 200 receives the Bluetooth signal 600, and the signal analysis module 220 on the Bluetooth receiving module 200 measures the Bluetooth signal 600 by the first Bluetooth receiving antenna When receiving at 211, the residual angle ...

Embodiment 2

[0079] Such as figure 1 , figure 2 , Figure 4 , Figure 5 As shown, after the Bluetooth transmitting module 100 transmits the Bluetooth signal 600, the Bluetooth antenna array 210 on the Bluetooth receiving module 200 receives the Bluetooth signal 600, and at the same time the signal analysis module 220 on the Bluetooth receiving module 200 measures that the Bluetooth signal 600 is received by the first Bluetooth Phase φ1 when antenna 211 receives; Bluetooth signal 600 is received by the second Bluetooth receiving antenna 212 Phase φ2; Bluetooth signal 600 is received by the third Bluetooth receiving antenna 213 Phase φ3; Bluetooth signal 600 is received by the fourth Bluetooth receiving antenna 214 The phase φ4 at the time of reception.

[0080] After obtaining φ1, φ2, φ3, φ4, then analyze and generate the phase difference Δφ1=φ2-φ1 of the Bluetooth signal 600 received by the first Bluetooth receiving antenna 211 and the second Bluetooth receiving antenna 212; The phase...

Embodiment 3

[0084] Such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 As shown, the Bluetooth transmitting module 100 is installed on a movable object, which can be a small pet, a household sweeping robot, a child or various spherical objects, etc., and the Bluetooth receiving module 200 is installed in a fixed position, and the fixed position It can be a mobile terminal with Bluetooth receiving function, such as a smart phone or a notebook computer. According to the Bluetooth positioning method described in Embodiment 1 and Embodiment 2, the short-distance motion track of the moving object can be monitored through the Bluetooth positioning system based on the Bluetooth antenna array of the present invention, and the above-mentioned moving object continuously emits The bluetooth signal, the bluetooth receiving module 200 of the fixed position receives the bluetooth signal that is transmitted by the movement process of the moving object, calculates and records the position...

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Abstract

The invention provides a Bluetooth antenna array in a Bluetooth antenna device, wherein the Bluetooth antenna array has more than four Bluetooth antennas linearly arranged at an equal distance, and the distance between two adjacent Bluetooth antenna single feed points is not larger than a Bluetooth wavelength. The present invention also proposes a set of Bluetooth positioning system which includes a Bluetooth transmitting module and a Bluetooth receiving module. After receiving a Bluetooth signal, the Bluetooth antenna array of the Bluetooth receiving module measures and calculates the position parameter of the Bluetooth signal when it reaches the Bluetooth antenna signal feed point, the position parameter includes at least the incident angle and the phase of an incident Bluetooth signal, and then the relative position of the Bluetooth device is obtained through the trigonometric function algorithm to complete the positioning. The positioning method of the present invention uses the transmission time of the Bluetooth packet data set obtained by the internal processor chip to generate the arrival time difference of package data sets of different antennas according to microwave path difference of different antennas, and converts the time difference into calculation of the phase difference and arrival angles of sine waves, so as to complete measurement and positioning.

Description

technical field [0001] The invention relates to the field of radio orientation, in particular to a positioning technology realized by bluetooth. Background technique [0002] In recent years, with the increase of user demands, wireless positioning technology has received more and more attention, which has promoted the research on wireless positioning technology and the development of ranging technology. How to use the existing network resources as much as possible to achieve precise positioning of users at low cost has always been the focus of research. [0003] The existing indoor positioning methods mainly include laser positioning method and infrared positioning method, however: [0004] 1. Laser positioning method: Two laser sensors on the same wall identify the position tracking sensor on the body worn by the wearer to obtain position and direction information. Due to the limited scanning area of ​​the laser, its positioning space is limited by the laser range . [0...

Claims

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Application Information

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IPC IPC(8): G01S5/06H04W4/00
CPCG01S5/06
Inventor 黄杰胡长松张眼杨大庆罗义呈
Owner 深圳市昇润科技有限公司
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