Radar antenna array, mobile terminal, gesture recognition method and device

A technology for radar antennas and mobile terminals, applied in antenna arrays, individually powered antenna arrays, antenna supports/mounting devices, etc., can solve problems such as single number and layout of antennas, low gesture recognition rate, and poor angular resolution , to achieve the effect of fewer antennas, flexible spatial layout, and improved angular resolution

Pending Publication Date: 2021-10-12
BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the number and layout of antennas in radar sensors installed on mobile phones are relatively single, so that only one target object can be detected in one detection, and the angular resolution is poor
In the gesture recognition application scenario, a single waving action in all directions can no longer meet the needs of users, and more complex gestures need the coordinated actions of multiple fingers
In this case, due to the existence of multiple target objects, accurate detection cannot be achieved, and the gesture recognition rate is not high.

Method used

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  • Radar antenna array, mobile terminal, gesture recognition method and device
  • Radar antenna array, mobile terminal, gesture recognition method and device
  • Radar antenna array, mobile terminal, gesture recognition method and device

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Embodiment Construction

[0060] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present disclosure as recited in the appended claims.

[0061] Mobile terminals such as mobile phones are equipped with a radar system that sends and receives multiple signals, and has a simple gesture recognition function. figure 1 It is a schematic diagram of the antenna array of a radar sensor equipped with 1 transmitting antenna and 3 receiving antennas, such as figure 1 As shown, the radar sensor includes one transmitting antenna (Tx)...

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Abstract

The invention relates to a radar antenna array, a mobile terminal and a gesture recognition method and device. The radar antenna array is applied to the mobile terminal, and comprises a plurality of transmitting antennas which are located on a same horizontal line and are used for transmitting radar waves; and a plurality of receiving antennas which are used for receiving the echoes formed based on the radar wave reflection, wherein the receiving antennas comprise a receiving antenna located in a horizontal dimension or a receiving antenna located in a pitching dimension, and the horizontal dimension and the pitching dimension are perpendicular to each other; the receiving antenna located in the horizontal dimension and the plurality of transmitting antennas are located on the same horizontal line, and the receiving antenna located in the pitching dimension is perpendicular to the horizontal line where the plurality of transmitting antennas are located; the transmitting parameters of the radar waves and the receiving parameters of the echoes are at least used for gesture recognition within the radiation range of the radar waves. Therefore, the larger-range and higher-resolution detection of gestures can be achieved based on the radar antenna array.

Description

technical field [0001] The present disclosure relates to the field of mobile control, and in particular to a radar antenna array, a mobile terminal, and a gesture recognition method and device. Background technique [0002] In order to recognize gestures through a mobile phone, a radar sensor needs to be installed in the mobile phone. At present, the number and layout of antennas in radar sensors installed on mobile phones are relatively simple, so that only one target object can be detected in one detection, and the angular resolution is poor. In the gesture recognition application scenario, a single waving action in all directions can no longer meet the needs of users, and more complex gestures need the coordinated actions of multiple fingers. In this case, due to the existence of multiple target objects, accurate detection cannot be realized, and the gesture recognition rate is not high. Contents of the invention [0003] The disclosure provides a radar antenna array,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/50G01S13/58G06F3/01G06K9/62G06N20/00
CPCG01S13/58G01S13/50G06F3/017G06N20/00G06F18/23G01S7/03G01S7/415G01S7/417G01S13/44G01S13/538G01S13/589G01S13/726G01S13/88H01Q1/243H01Q21/065G01S13/62H01Q1/24H01Q21/08G06V40/28
Inventor 王伟李金龙
Owner BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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