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System capable of improving Bluetooth AOA positioning precision

A positioning accuracy and Bluetooth technology, applied in the field of positioning, can solve the problems of low positioning accuracy, weak signal anti-interference ability, low sampling frequency of multiple antennas of baseband signals, etc., and achieve the goal of improving positioning accuracy, increasing sampling frequency, and enhancing anti-interference ability Effect

Inactive Publication Date: 2020-11-27
CHINA JILIANG UNIV +1
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  • Summary
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  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0002] Bluetooth positioning technology is currently a positioning method with better overall performance. However, due to the regulations of the Bluetooth protocol, the current multi-antenna sampling frequency for Bluetooth baseband signals is low, resulting in weak signal anti-interference ability. Due to the large number of Bluetooth devices, Bluetooth AOA positioning When the mid-positioning base station and terminal are susceptible to co-frequency interference, the positioning accuracy drops significantly and the positioning accuracy is low

Method used

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  • System capable of improving Bluetooth AOA positioning precision
  • System capable of improving Bluetooth AOA positioning precision
  • System capable of improving Bluetooth AOA positioning precision

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Embodiment Construction

[0018] This part will describe the specific embodiment of the present invention in detail, and the preferred embodiment of the present invention is shown in the accompanying drawings. Each technical feature and overall technical solution of the invention, but it should not be understood as a limitation on the protection scope of the present invention.

[0019] In the description of the present invention, multiple means more than two, greater than, less than, exceeding, etc. are understood as not including the original number, and above, below, within, etc. are understood as including the original number. If the description of the first and second is only for the purpose of distinguishing the technical features, it cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features relation.

[0020] In the description of the present...

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Abstract

The invention discloses a system capable of improving Bluetooth AOA positioning precision. The system comprises a plurality of sampling control chips, an crystal oscillator and a synchronous signal control chip, wherein each sampling control chip comprises a sampling end, a first input end and a second input end, and the sampling end of each sampling control chip is connected with an antenna; thecrystal oscillator is electrically connected with the first input ends of the sampling control chips at the same time; and the synchronous signal control chip is electrically connected with the secondinput ends of the plurality of sampling control chips at the same time. Through cooperation of the crystal oscillator, the synchronous signal control chip, the plurality of sampling control chips andthe plurality of antennas, the sampling frequency can be multiplied within the same sampling time, and the anti-interference capability is effectively enhanced, so that the positioning precision is improved.

Description

technical field [0001] The invention relates to the technical field of positioning, in particular to a system capable of improving the positioning accuracy of Bluetooth AOA. Background technique [0002] Bluetooth positioning technology is currently a positioning method with better overall performance. However, due to the regulations of the Bluetooth protocol, the current multi-antenna sampling frequency for Bluetooth baseband signals is low, resulting in weak signal anti-interference ability. Due to the large number of Bluetooth devices, Bluetooth AOA positioning When the mid-positioning base station and terminal are susceptible to co-frequency interference, the positioning accuracy drops significantly, and the positioning accuracy is low. Contents of the invention [0003] The present invention aims to solve at least one of the technical problems existing in the prior art. For this reason, the present invention proposes a system that can improve the positioning accuracy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/02H04W4/80H04W64/00
CPCH04W4/023H04W4/80H04W64/00
Inventor 蒋汝雯楼喜中刘美玉叶凯枫
Owner CHINA JILIANG UNIV
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