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Bluetooth locating method

A bluetooth positioning and bluetooth technology, applied in positioning, measuring devices, instruments, etc., can solve problems such as difficulty in absolute accuracy and impact on equipment positioning, and achieve miniaturized power consumption, solve computing problems, and low power consumption

Active Publication Date: 2018-02-27
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

In actual calculation, in the extremely short time from signal transmission to reception, the distance between adjacent antennas of the antenna array is too short, so it is difficult to obtain absolutely accurate information on the angle of arrival measured by receiving the Bluetooth signal, and thus Has an impact on the calculation of device location

Method used

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Experimental program
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Effect test

Embodiment 1

[0068] The bluetooth device in the present invention all uses the communication protocol above bluetooth 4.1, and bluetooth 4.1 is mainly focused on IOT (Internet Of Things Internet of Things). Devices with the Bluetooth 4.1 protocol can act as transmitters and receivers at the same time, and can be connected to multiple devices. The Bluetooth 4.1 protocol is a promising technology, and its characteristics of intelligence, low power consumption, high transmission speed and simple connection will be suitable for use in many emerging devices.

[0069] Such as figure 1 and figure 2 The present invention proposes a bluetooth positioning method, which is used in a bluetooth positioning system, and the bluetooth positioning system at least includes a bluetooth transmitting module 100 and a bluetooth receiving module 200 . The bluetooth receiving module 200 includes a bluetooth antenna device and a signal analysis module 220, the bluetooth antenna device includes a receiving end c...

Embodiment 2

[0112] The second embodiment is roughly the same as the first embodiment, except that:

[0113] It is known through actual inspection that the vertical distance di obtained in the step S8, i+1 conforms to the standard normal distribution:

[0114]

[0115] Therefore, the optimal vertical distance (dopt) is generated by taking the median of the data within plus or minus 1.96 standard deviations of multiple vertical distances.

[0116] Know that through actual inspection, the best distance (Lopt) and the best angle of incidence (θopt) obtained in the step S11 meet the standard normal distribution:

[0117]

[0118] Therefore, the optimal distance (Lopt) is generated by taking the median of the data within plus or minus 1.96 standard deviations of multiple distances (Li); the optimal incident angle (θopt) is generated by comparing multiple incident angles ( The data within plus or minus 1.96 standard deviations of θi) is generated by taking the median.

[0119] Such as ...

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Abstract

The invention relates to Bluetooth locating method. The Bluetooth locating method is utilized in a Bluetooth locating system. The Bluetooth locating system comprises at least one Bluetooth transmitting module and at least one Bluetooth receiving module, the Bluetooth receiving module comprises a Bluetooth antenna device and a signal analysis module, the Bluetooth antenna device comprises a receiving end circuit board and a Bluetooth antenna array arranged on the receiving end circuit board, the Bluetooth antenna array comprises four antennas, all the antennas are electrically connected into the receiving end circuit board through a signal feeding point, and the four signal feeding points are arranged in a straight line, so that locating the Bluetooth transmitting module is completed through the Bluetooth locating calculation method. By means of the Bluetooth locating method of calculation of a large amount of data, a normal distribution method in statistics is applied.

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 Bluetooth positioning methods are as follows: [0004] The application number is CN201710130779.2, which discloses a Bluetooth-based indoor positioning system and its positioning method. In the indoor space, Bluetooth devices are arranged at intervals according to the length, width and height of the three-dimensional coordinate system. The Bluetooth devices communicate with each other wirelessly. The c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S5/06G01S5/02
CPCG01S5/0278G01S5/06
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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