WO2020093278A1

WO2020093278A1 - Multi-antenna based gesture recognition method and device

Info

Publication number: WO2020093278A1
Application number: PCT/CN2018/114391
Authority: WO
Inventors: 杜帅乐; 潘光胜; 刘鹏举; 张广煜
Original assignee: 华为技术有限公司
Priority date: 2018-11-07
Filing date: 2018-11-07
Publication date: 2020-05-14
Also published as: CN112689812A; CN112689812B

Abstract

The present application provides a multi-antenna based gesture recognition method and device, for improving the recognition efficiency and applicability of wireless signal-based gesture recognition. The method is applied to a terminal comprising a first antenna and a second antenna, and the positions of the first antenna and the second antenna are different. Said method comprises: acquiring a first time, the first time being acquired when a fluctuation value of an antenna parameter of a first antenna is greater than a preset threshold; acquiring a second time of a second antenna, the second time being acquired when a fluctuation value of an antenna parameter of the second antenna is greater than the preset threshold, the second time being later than the first time; and according to the first time, the second time, the positions of the first antenna and the second antenna, determining a target gesture.

Description

Gesture recognition method and device based on multiple antennas

Technical field

The present application relates to the field of wireless communication technology, and in particular, to a gesture recognition method and device based on multiple antennas.

Background technique

With the increasing number and types of electronic devices and the increasing popularity, the interaction between users and electronic devices has also evolved from simple interactions using peripherals such as remote controllers, mice, and keyboards to using voice interactions. , Somatosensory interaction, eye movement interaction and gesture interaction, etc. Among them, the gesture interaction mode is more natural and convenient, and has a great demand in many application scenarios.

In the field of wireless communication technology, gestures can cause reflection, diffraction, and multipath of wireless signals. Therefore, different gesture types can be recognized based on changes in wireless signals received by electronic devices to implement gesture interaction. At present, gesture recognition based on wireless signals mainly collects antenna signal data through a single antenna for model training to obtain various gesture models, and then extracts features related to human movement speed from the collected antenna signal data during gesture recognition. The trained gesture model recognizes the gesture.

However, in the above method, when the direction of the arrival of the wireless signal is different from the angle of the antenna, the waveform fluctuations generated by the same gesture will be different, so the extracted features related to the speed of the human body will also be different. It will cause some limitations in gesture recognition.

Summary of the invention

The present application provides a multi-antenna-based gesture recognition method and device for improving the recognition efficiency and applicability of gesture recognition based on wireless signals.

To achieve the above purpose, the embodiments of the present application adopt the following technical solutions:

In a first aspect, a multi-antenna-based gesture recognition method is provided, which is applied to a terminal including a first antenna and a second antenna, where the positions of the first antenna and the second antenna are different. The method includes: acquiring At a moment, the first moment is obtained when the fluctuation value of the antenna parameter of the first antenna is greater than a preset threshold; the second moment when the second antenna is acquired, the second moment is when the fluctuation value of the antenna parameter of the second antenna is greater than the Obtained when setting the threshold, the second moment is later than the first moment; the target gesture is determined according to the positions of the first moment, the second moment, the first antenna, and the second antenna. That is, the order in which the target gesture passes or approaches different antennas is determined, and the movement trajectory of the target gesture is determined, thereby identifying the target gesture. In the above technical solution, the terminal does not need to perform complex pattern recognition and other processing on the antenna parameters of the antenna, and the target gesture can be recognized only according to the time when the antenna parameters of different antennas fluctuate and the position of the antenna, thereby improving the efficiency of gesture recognition, The power consumption of the terminal is also reduced; in addition, the method is not affected by the direction of the incoming wave of the wireless signal, so the applicability of gesture recognition is also improved.

In a possible implementation manner of the first aspect, the first antenna and the second antenna are located on different sides of the terminal screen, for example, the horizontal positions of the first antenna and the second antenna projected in the plane where the terminal screen is located are different, or vertical Different, or different horizontal and vertical positions. In the foregoing possible implementation manner, by reasonably setting the positions of the first antenna and the second antenna, the terminal can recognize more gestures with fewer antennas.

In a possible implementation manner of the first aspect, the first moment is the moment when the fluctuation value of the antenna parameter of the first antenna is greater than a preset threshold for the first time, that is, the moment when the fluctuation of the antenna parameter of the first antenna starts; the second moment It is the moment when the fluctuation value of the antenna parameter of the second antenna is greater than the preset threshold for the first time, that is, the moment when the fluctuation of the antenna parameter of the second antenna starts. In the above possible implementation manner, the antenna parameters of the antenna closer to the user's hand will fluctuate earlier, and the antenna parameters of the antenna farther from the user's hand will fluctuate later. The above can easily and effectively determine the user's hand according to the moment when the fluctuation starts The sequence through different antennas.

In a possible implementation manner of the first aspect, the first moment is the moment when the antenna parameter of the first antenna has the largest fluctuation value, that is, the moment when the antenna parameter of the first antenna has the largest fluctuation; the second moment is the second antenna The moment when the fluctuation value of the antenna parameter of the antenna is the largest, that is, the moment when the fluctuation of the antenna parameter of the second antenna is the largest. In the above possible implementation manner, the larger the fluctuation value of the antenna parameter of the antenna closer to the user's hand, the smaller the fluctuation value of the antenna parameter of the antenna farther from the user's hand, and the user can easily and effectively determine the user at the time of the maximum fluctuation The order in which hands pass through different antennas.

In a possible implementation manner of the first aspect, the first moment is the moment when the fluctuation value of the antenna parameter of the first antenna is greater than a preset threshold for the last time, that is, the moment when the fluctuation of the antenna parameter of the first antenna ends; the second moment It is the moment when the fluctuation value of the antenna parameter of the second antenna is greater than the preset threshold for the last time, that is, the moment when the fluctuation of the antenna parameter of the second antenna ends. In the above possible implementation manner, the antenna parameters of the antenna closer to the user's hand will fluctuate earlier, and the antenna parameters of the antenna farther from the user's hand will fluctuate later. The above can easily and effectively determine the user's hand according to the time when the fluctuation ends The sequence through different antennas.

In a possible implementation manner of the first aspect, the antenna parameters include at least one of the following parameters: channel state information CSI amplitude, CSI phase, received signal strength indicator RSSI, signal-to-noise ratio SNR, channel quality Indication CQI, packet reception rate PRR, packet loss rate PLR, signal to interference ratio SIR, signal to interference plus noise ratio SINR, or channel sounding reference signal SRS. In the foregoing possible implementation manners, the diversity and flexibility of the terminal to recognize the target gesture according to the antenna parameters of the first antenna and the second antenna can be improved.

In a possible implementation manner of the first aspect, the antenna parameter includes at least one of the following parameters: impedance characteristic, pattern, correlation system, or channel calibration value. In the foregoing possible implementation manners, the diversity and flexibility of the terminal to recognize the target gesture according to the antenna parameters of the first antenna and the second antenna can be improved.

In a second aspect, a terminal is provided. The terminal includes a first antenna and a second antenna. The positions of the first antenna and the second antenna are different. The device includes: an acquiring unit for acquiring a first moment, the first moment is at Acquired when the fluctuation value of the antenna parameter of the first antenna is greater than a preset threshold; the acquisition unit is also used to acquire the second moment, which is acquired when the fluctuation value of the antenna parameter of the second antenna is greater than the preset threshold, The second moment is later than the first moment; the determining unit is used to determine the target gesture according to the positions of the first moment, the second moment, the first antenna, and the second antenna.

In a possible implementation manner of the second aspect, the first antenna and the second antenna are located on different sides of the terminal screen, for example, the horizontal positions of the first antenna and the second antenna projected in the plane where the terminal screen is located are different, or vertical Different, or different horizontal and vertical positions.

In a possible implementation manner of the second aspect, the first moment is the moment when the fluctuation value of the antenna parameter of the first antenna is greater than the preset threshold for the first time; the second moment is the fluctuation period of the antenna parameter of the second antenna is greater than the preset value for the first time Set the threshold time.

In a possible implementation manner of the second aspect, the first moment is the moment when the fluctuation value of the antenna parameter of the first antenna is the largest; the second moment is the moment when the fluctuation value of the antenna parameter of the second antenna is the largest.

In a possible implementation manner of the second aspect, the first moment is the moment when the fluctuation value of the antenna parameter of the first antenna is greater than the preset threshold for the last time; the second moment is the moment when the fluctuation value of the antenna parameter of the second antenna is greater than the preset Set the threshold time.

In a possible implementation manner of the second aspect, the antenna parameters include at least one of the following parameters: channel state information CSI amplitude, CSI phase, received signal strength indicator RSSI, signal-to-noise ratio SNR, channel quality indicator CQI , Packet reception rate PRR, packet loss rate PLR, signal-to-interference ratio SIR, signal-to-interference plus noise ratio SINR, or channel sounding reference signal SRS.

In a possible implementation manner of the second aspect, the antenna parameter includes at least one of the following parameters: impedance characteristic, pattern, correlation system, or channel calibration value.

In a third aspect, a terminal is provided. The terminal includes: a processor, a first antenna, and a second antenna, where the positions of the first antenna and the second antenna are different; wherein, the processor is configured to: acquire the first moment. The first moment is acquired when the fluctuation value of the antenna parameter of the first antenna is greater than the preset threshold; the second moment is acquired when the fluctuation value of the antenna parameter of the second antenna is greater than the preset threshold, The second moment is later than the first moment; the target gesture is determined according to the positions of the first moment, the second moment, the first antenna and the second antenna.

In a possible implementation manner of the third aspect, the first antenna and the second antenna are located on different sides of the terminal screen, for example, the horizontal positions of the first antenna and the second antenna projected in the plane where the terminal screen is located Different, or different in vertical, or different in horizontal position and vertical position.

In a possible implementation manner of the third aspect, the first moment is the moment when the fluctuation value of the antenna parameter of the first antenna is greater than a preset threshold for the first time; the second moment is the fluctuation period of the antenna parameter of the second antenna is greater than the first time Set the threshold time.

In a possible implementation manner of the third aspect, the first moment is the moment when the fluctuation value of the antenna parameter of the first antenna is the largest; the second moment is the moment when the fluctuation value of the antenna parameter of the second antenna is the largest.

In a possible implementation manner of the third aspect, the first moment is the moment when the fluctuation value of the antenna parameter of the first antenna is greater than the preset threshold for the last time; the second moment is the moment when the fluctuation value of the antenna parameter of the second antenna is greater than the preset Set the threshold time.

In a possible implementation manner of the third aspect, the antenna parameters include at least one of the following parameters: channel state information CSI amplitude, CSI phase, received signal strength indicator RSSI, signal-to-noise ratio SNR, channel quality indicator CQI , Packet reception rate PRR, packet loss rate PLR, signal-to-interference ratio SIR, signal-to-interference plus noise ratio SINR, or channel sounding reference signal SRS.

In a possible implementation manner of the third aspect, the antenna parameter includes at least one of the following parameters: impedance characteristic, pattern, correlation system, or channel calibration value.

According to a fourth aspect, a computer-readable storage medium is provided, in which instructions are stored, and when the instructions run on a terminal having at least two antennas in different positions, the terminal is caused to perform the first aspect described above Or a multi-antenna based gesture recognition method provided by any possible implementation manner of the first aspect.

According to a fifth aspect, there is provided a computer program product which, when the computer program product runs on a terminal having at least two antennas at different positions, causes the terminal to perform the first aspect or any possible implementation manner of the first aspect Provided multi-antenna based gesture recognition method.

Understandably, any terminal, computer storage medium, or computer program product based on the multi-antenna gesture recognition method provided above is used to perform the corresponding method provided above, and therefore, the beneficial effects that it can achieve With reference to the beneficial effects in the corresponding methods provided above, they are not repeated here.

BRIEF DESCRIPTION

1 is a schematic structural diagram 1 of a terminal provided by an embodiment of the present application;

1A is a schematic diagram of an interface for setting a floating gesture provided by an embodiment of the present application;

FIG. 1B is a schematic diagram of an interface for unlocking using a floating gesture provided by an embodiment of the present application;

1C is a schematic diagram of an interface for receiving a call using a floating gesture provided by an embodiment of the present application;

1D is a schematic diagram of an interface for switching songs using floating gestures provided by an embodiment of the present application;

2 is a schematic flowchart of a gesture recognition method based on multiple antennas provided by an embodiment of the present application;

FIG. 3 is a schematic diagram 1 of at least two antennas provided by an embodiment of the present application;

4 is a second schematic diagram of distribution of at least two antennas provided by an embodiment of the present application;

FIG. 5 is a schematic diagram of an antenna parameter fluctuation provided by an embodiment of the present application;

6 is a third schematic diagram of distribution of at least two antennas provided by an embodiment of the present application;

7 is a schematic diagram 4 of at least two antennas provided by an embodiment of the present application;

8 is a schematic diagram of a gesture provided by an embodiment of the present application;

9 is a schematic diagram 5 of distribution of at least two antennas provided by an embodiment of the present application;

10 is a schematic diagram of a target gesture provided by an embodiment of the present application;

11 is a second schematic structural diagram of a terminal according to an embodiment of the present application.

detailed description

In this application, "at least one" refers to one or more, and "multiple" refers to two or more. "And / or" describes the relationship of the related objects, indicating that there can be three relationships, for example, A and / or B, which can mean: A exists alone, A and B exist at the same time, B exists alone, where A, B can be singular or plural. "At least one of the following" or a similar expression refers to any combination of these items, including any combination of a single item or a plurality of items. For example, at least one (a) of a, b, or c may represent: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, and c may be single or multiple. The character "/" generally indicates that the related object is a "or" relationship.

It should be noted that in the present application, the words "exemplary" or "for example" are used as examples, illustrations or explanations. Any embodiment or design described in this application as "exemplary" or "for example" should not be construed as more preferred or advantageous than other embodiments or design. Rather, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific manner.

Embodiments of the present application provide a gesture recognition method based on multiple antennas, which can be applied to a terminal configured with at least two antennas and at least two antennas have different positions. The present application can be used to improve recognition of gesture recognition based on wireless signals Efficiency and suitability. The basic principle of wireless signal-based gesture recognition is that before the user makes the target gesture, when the wireless signal received by the terminal ’s antenna is relatively stable, for example, it only fluctuates within a small range; when there is a moving object near the terminal ( For example, when the user makes a target gesture, different postures, speeds, and angles of the object will cause differences in the reflection, refraction, and diffraction of the wireless signal in space, which will affect the wireless signal received by the antenna. It will cause the occlusion or reflection of the wireless signal, which will result in the deterioration of the quality of the wireless signal received by the antenna. When the hand keeps moving, it will cause the quality of the wireless signal to fluctuate in a large range and so on. The wireless signal here can be reflected by the wireless channel information. Based on this, the gesture recognition method provided by the embodiment of the present application obtains the moment when the wireless channel information of at least two antennas fluctuates when the wireless channel information of at least two antennas fluctuates, based on the moment when the wireless channel information of different antennas fluctuates The sequence of and the positions of at least two antennas determine the trajectory of the target gesture, and then recognize the target gesture.

In addition, due to the movement of the object, the working state of the antenna will also change. For example, when the hand is close to the terminal, the impedance characteristics around the antenna will change. When the hand continues to move, it will cause irregular fluctuations in the impedance characteristics of the antenna. As a result, the measured antenna state will also fluctuate irregularly. Therefore, the embodiments of the present application also provide a gesture recognition method, by acquiring the moment when the antenna state information of at least two antennas fluctuates when the antenna state information of at least two antennas fluctuates, based on the fluctuation of the antenna state information of different antennas The time sequence and the position of at least two antennas determine the movement trajectory of the target gesture, and then recognize the target gesture.

It should be noted that the fluctuation in the embodiment of the present application may refer to that the antenna parameters have rules up or down at a reference value (for example, the reference value may represent the average value of the antenna parameters over a period of time when not affected by the target gesture) or Irregular jumps. Compared with the fluctuation of the antenna parameter caused by the target gesture, the fluctuation of the antenna parameter caused by the thermal noise of the device in the terminal is only a random fluctuation within a small range. For the fluctuation within a very small range, the terminal may not be able to detect it due to insufficient detection accuracy; or, when the terminal detects a fluctuation within a small range, the terminal does not respond to the fluctuation or considers that there is no fluctuation, Therefore, the terminal does not execute the method provided in the embodiments of the present application. Therefore, the fluctuation of the antenna parameter in the embodiment of the present application may refer to the fluctuation of the antenna parameter caused by the target gesture, that is, the fluctuation of the antenna parameter in a larger range, for example, when the fluctuation value is greater than a preset threshold That is to say that the antenna parameters fluctuate. In addition, methods for evaluating "fluctuation" include, but are not limited to: variance, standard deviation, extreme value, derivative, rate of change, absolute error, probability distribution, anomaly detection, etc., as well as training for machine learning and other methods for identifying "fluctuation" "Training model, etc., this embodiment of the present application will not be described in detail.

The terminal described in the embodiment of the present application may be various devices configured with at least two antennas. For example, the terminal may be a mobile phone, a tablet computer, a computer, a notebook computer, a video camera, a camera, a wearable device (such as a smart watch, etc.), an in-vehicle device, an ultra-mobile personal computer (Ultra-mobile Personal Computer, UMPC), a netbook, a cellular Telephone, personal digital assistant (Personal Digital Assistant, PDA), etc. For convenience of description, the above-mentioned devices are collectively referred to as terminals in this application. As shown in FIG. 1, the terminal is a mobile phone as an example. The mobile phone includes: an RF circuit 101, a memory 102, a processor 103, a sensor component 104, a multimedia component 105, a power component 106, and an input / output interface 107.

The following describes each component of the mobile phone in detail with reference to FIG. 1:

The RF circuit 101 can be used for receiving and sending signals during receiving and sending information or during a call. In particular, after receiving the downlink information of the base station, it is processed by the processor 103 and the uplink data is sent to the base station. Generally, the RF circuit 101 includes, but is not limited to, at least two antennas, amplifiers, transceivers, couplers, low noise amplifiers (LNA), duplexers, and the like. In addition, the RF circuit 101 can also communicate with other devices through wireless communication.

The memory 102 can be used to store data, software programs, and modules; mainly including a storage program area and a storage data area, wherein the storage program area can store an operating system and application programs required for at least one function, such as a sound playback function, an image playback function, etc. ; The storage data area can store data created according to the use of the mobile phone, such as audio data, image data, phone book, etc. In addition, the mobile phone may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device.

The processor 103 is the control center of the mobile phone, and uses various interfaces and lines to connect various parts of the entire device, by running or executing the software programs and / or modules stored in the memory 102, and calling the data stored in the memory 102, Perform various functions and process data of the mobile phone to monitor the mobile phone as a whole. Optionally, the processor 103 may include one or more processing units, for example, the processor 103 may integrate an application processor (Application Processor, AP) and a baseband processor (modem), an operating system, a user interface, and an application program of a mobile phone Can be processed on the AP, and communication functions can be processed on the baseband processor. It can be understood that, as described above, the baseband processor may not be integrated into the processor 103.

The sensor component 104 includes one or more sensors, which are used to provide various aspects of status assessment for the mobile phone. The sensor component 104 may include an acceleration sensor, a gyro sensor, a magnetic sensor, a pressure sensor or a temperature sensor, and the sensor component 103 can detect the acceleration / deceleration, orientation, on / off status of the mobile phone, and the relative positioning of the component, or The temperature of the phone changes, etc. In addition, the sensor assembly 104 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications.

The multimedia component 105 provides a screen of an output interface between the mobile phone and the user. The screen may be a touch panel, and when the screen is a touch panel, the screen may be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touch, swipe, and gestures on the touch panel. The touch sensor may not only sense the boundary of the touch or sliding action, but also detect the duration and pressure related to the touch or sliding operation. In addition, the multimedia component 105 further includes at least one camera. For example, the multimedia component 105 includes a front camera and / or a rear camera. When the mobile phone is in an operation mode, such as a shooting mode or a video mode, the front camera and / or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or have focal length and optical zoom capabilities.

The power component 106 is used to provide power for various components of the mobile phone. The power component 106 may include a power management system, one or more power sources, and other components associated with the generation, management, and distribution of power by the mobile phone. The input / output interface 107 provides an interface between the processor 103 and a peripheral interface module, for example, the peripheral interface module may be a keyboard, a mouse, and so on.

Although not shown, the mobile phone may further include an audio component and a communication module, for example, the audio component includes a microphone and a speaker, etc. The communication module may include a wireless fidelity (WiFi) module, a Bluetooth module, and short-range wireless communication (near One or more of a field communication (NFC) module, a global navigation system (GNSS) module or a frequency modulation (FM) module, and the embodiments of the present application will not repeat them here. Those skilled in the art may understand that the structure of the mobile phone shown in FIG. 1 does not constitute a limitation on the mobile phone, and may include more or less components than those shown in the figure, or a combination of certain components, or a different arrangement of components.

It should be noted that at least two antennas in the embodiments of the present application may include the antenna corresponding to the radio frequency circuit, the antenna corresponding to the WiFi module, the antenna corresponding to the Bluetooth module, and the antenna corresponding to the NFC module. In addition, at least two antennas may be separately installed, or may be integrated (for example, a cellular antenna), etc. The embodiment of the present application does not limit the specific form of the antenna.

The method provided by the embodiments of the present application can be applied to various application scenarios of the terminal. The role of the target gesture recognized by the method provided by the present application and the gesture directly made by the user on the touch screen or the gesture command input through other input devices The effect of etc. can have the same effect. In this embodiment of the present application, the target gesture made by the user may be a floating gesture made near the terminal (for example, within a range of 3-5 cm above the screen of the terminal, etc.); or a gesture made directly by the user on the touch screen with his hand, For example, when the touch screen of the terminal is damaged, the terminal can recognize the gestures directly made by the user on the touch screen through the method provided in this application; or the gestures made directly on the touch screen by the user wearing a protective suit, for example, when the user When wearing gloves, the user can directly make gestures on the touch screen without taking off and taking off. The terminal can recognize the gestures made by the user through the method provided in the present application.

Among them, when the user uses the hovering gesture, the user can configure in the setting options of the terminal. For example, as shown in (a) of FIG. 1A, the terminal has “floating gestures” in the setting options. After the user selects the option of “floating gestures”, the interface shown in (b) of FIG. 1A is displayed. Among them, the "open" option is used to turn on the floating gesture, and the "off" option is used to turn off the floating gesture. When the user selects the "on" option, the terminal can recognize the floating gesture made by the user and perform the corresponding according to the specific floating gesture Instructions. Exemplarily, as shown in FIG. 1B, when the terminal is in the lock screen state (as (a) in FIG. 1B), the user may make a floating gesture of swiping to the right on the screen of the terminal (as in FIG. 1B) (b)), then the terminal can recognize the gesture of swiping right by the method provided in this application, and then unlock and display the main interface of the terminal for the user (as shown in (c) in FIG. 1B). Or, as shown in FIG. 1C, when the terminal is in an incoming call state (as shown in (a) in FIG. 1C), the user may make a floating gesture of swiping right on the screen of the terminal (as shown in ( b) as shown), the terminal can recognize the gesture of swiping right by the method provided in this application, and then connect the phone to the user and display the call interface (as shown in (c) in FIG. 1C), of course the user You can also make a floating gesture of swiping left on the screen of the terminal to hang up the phone. Or, as shown in FIG. 1D, when the user uses the terminal to listen to music (as shown in (a) in FIG. 1D), the user may make a floating gesture of swiping left on the screen of the terminal (as in FIG. 1D) (b)), the swipe left identified by the method provided by this application can be used to play the previous song, and then the terminal switches the user to the previous song for playback (as shown in (c) in FIG. 1D) ), Of course, the user can also make a floating gesture of swiping right on the screen of the terminal to switch to the next song, or make a floating gesture of sliding up on the screen of the terminal to increase the volume, or on the terminal A floating gesture of sliding down at the top of the screen is made to reduce the volume, etc., and the embodiments of the present application will not be illustrated one by one here. Similarly, when the user uses the address book of the terminal, the user can make a gesture of swiping up or down, etc. The terminal can be used to display the previous page for the user when the target gesture is recognized as swiping upward by the method provided in this application The address book can be used to display the next page of address book for the user when the target gesture is swiped down; or, when the user uses the terminal to scroll through the album, the user can make a gesture of swiping left or right, etc. The terminal can be used to display the next picture for the user when the target gesture is swiped to the right by the method provided in this application, and can be used to display the previous picture for the user if the target gesture is swiped to the left.

FIG. 2 is a schematic flowchart of a gesture recognition method based on multiple antennas provided by an embodiment of the present application. The method may be implemented in the terminal shown in FIG. 1. Referring to FIG. 2, the method may include the following steps.

S201: The terminal acquires the first moment, which is acquired when the fluctuation value of the antenna parameter of the first antenna is greater than a preset threshold, and the second moment when the second antenna is acquired, the second moment is at the second antenna When the fluctuation value of the antenna parameter is greater than the preset threshold, the second moment is later than the first moment.

The terminal includes at least two antennas. The at least two antennas include at least a first antenna and a second antenna. Each antenna can be used to receive a wireless signal. The following uses at least two antennas as an example for description. The different positions of the at least two antennas may mean that the positions of the at least two antennas on the terminal are different; optionally, among the at least two antennas, the first antenna and the second antenna are not on the same side of the terminal screen. For example, when projecting at least two antennas on the plane where the screen of the terminal is located, the projection positions of at least two antennas in the plane are different. If the plane is represented by a two-dimensional space (x-axis and y-axis), then at least two antennas The projections of the antennas in this plane correspond to different values on the x-axis, or different values on the y-axis, or different values on the x-axis and y-axis.

Exemplarily, taking the at least two antennas shown in FIGS. 3 and 4 as an example to illustrate the number of at least two antennas and the position of each antenna, the plane where the terminal screen is located in FIGS. 3 and 4 is For example, the projection plane, the x-axis in the horizontal direction, and the y-axis in the vertical direction, T represents the top of the terminal, B represents the bottom of the terminal, L represents the left side of the terminal, and R represents the right side of the terminal. As shown in (a) to (c) of FIG. 3, taking at least two antennas including two antennas (antenna 1 and antenna 2) as an example, when antenna 1 and antenna 2 are respectively disposed on the left and right sides of the terminal, When the projection values of antenna 1 and antenna 2 correspond to the same value on the y-axis, as shown in (a) in FIG. 3, when the projection values of antenna 1 and antenna 2 correspond to different values on the y-axis, as shown in FIG. 3 (b) or (c). In FIG. 4, taking at least two antennas including three antennas (antenna 1, antenna 2 and antenna 3) as an example, when antenna 1 and antenna 2 are respectively disposed on the left and right sides of the terminal, and the projection of antenna 1 and antenna 2 Corresponding to different values on the y-axis, the antenna 3 is set at the bottom of the terminal (that is, the values on the x-axis and the y-axis are different from those of the antenna 1 and the antenna 2) as shown in (a) or (b) in FIG. 4 ) As shown.

In addition, the antenna parameters may be parameters in wireless channel information and / or antenna state information parameters. The wireless channel information is used to reflect the state of the wireless signal, which can be calculated according to the wireless signal received by the antenna; the antenna state information is used to reflect the working state of the antenna, which can be measured according to the working state of the antenna. For wireless channel information, before the user makes the target gesture, the wireless signal received by the terminal ’s antenna may be relatively stable, such as fluctuating only within a small range, so the wireless channel information calculated based on the wireless signal is also relatively Stable; when the user makes a target gesture near the terminal, at least two antennas of the terminal will be affected by the gesture, that is, the wireless signals received by the at least two antennas will fluctuate, such as in a large range Fluctuation, so that the wireless channel information calculated based on the fluctuated wireless signal will also fluctuate. Similarly, for the antenna state information, before the user makes the target gesture, the working state of the antenna measured by the terminal is relatively stable; when the user makes the target gesture near the terminal, the working state of the antenna is affected by the hand. Fluctuations, such as the impedance characteristics of the antenna, will be affected by the hand and change, and then the measured impedance characteristics will fluctuate.

Specifically, when the user makes a target gesture near the terminal (the target gesture may be a hovering gesture or a gesture directly acting on the touch screen), the antenna parameters of at least two antennas of the terminal will be affected by the gesture, That is, the wireless channel information or the antenna status information of at least two antennas may fluctuate, so that the terminal can obtain the moment when the antenna parameters of the at least two antennas fluctuate.

Optionally, the terminal may detect the antenna parameters of at least two antennas, and when the antenna parameters of the at least two antennas fluctuate, the terminal obtains the time information sequence corresponding to the antenna parameters of the at least two antennas (that is, the antennas corresponding to different times) Parameter), and the time when the antenna parameter of each antenna fluctuates is extracted from the time information sequence. Optionally, the moment may be the moment when the fluctuation starts, that is, the moment when the fluctuation value of the antenna parameter is greater than a preset threshold for the first time (for example, the difference between the antenna parameter value at this moment and the antenna parameter value at one or more previous moments is the same Is less than the preset threshold, and the difference between the antenna parameter value at one or more later moments is greater than the preset threshold); or the moment when the fluctuation ends, that is, the moment when the fluctuation value of the antenna parameter last exceeds the preset threshold (for example, the The difference between the antenna parameter value at that moment and the antenna parameter value at one or more later moments is less than the preset threshold), or the moment when the fluctuation is greatest, that is, the moment when the antenna parameter fluctuates most (for example, the antenna parameter value at that moment and the previous The difference between the antenna parameter values at one or more moments is the largest, and the difference between the antenna parameter values at the latter one or more moments is also the largest), etc., which is not specifically limited in the embodiments of the present application.

In practical applications, the wireless channel information may be reflected by one or more parameters. Therefore, in this embodiment of the present application, the time of the fluctuation may be obtained from at least one of the following parameters included in the wireless channel information: channel state information (Channel Status, Information (CSI) amplitude, CSI phase, Received Signal Strength Indicator (Received Signal Strength Indicator, RSSI), Signal to Noise Ratio (Signal Noise, Ratio, SNR), Channel Quality Indicator (Channel Quality Indicator, CQI), packet reception rate (Packet Reception Rate, PRR), packet loss rate (Packet Loss Rate, PLR), signal to interference ratio (Signal to Interference Ratio, SIR), signal interference to noise ratio (Signal to Interference plus Noise Rate, SINR), or channel detection Reference signal (SoundingReferenceSignal, SRS). Similarly, the antenna state information can also be reflected by one or more parameters. Therefore, in the embodiments of the present application, the above-mentioned fluctuation time can be obtained from at least one of the following parameters included in the antenna state information: impedance characteristic, direction pattern, Correlation system, or channel calibration value.

Exemplarily, taking at least two antennas including antenna 1 and antenna 2, and the positions of antenna 1 and antenna 2 as shown in (b) in FIG. 3 as an example. When the wireless channel information includes CSI or RSSI, and the user makes a certain gesture, the terminal obtains the time information sequence of the CSI fluctuations of antenna 1 and antenna 2 as shown in (a) in FIG. 5, the acquired antenna 1 and The time information sequence of the RSSI fluctuation of the antenna 2 is as shown in (b) of FIG. 5, in FIG. 5, ANT1 represents antenna 1 and ANT2 represents antenna 2.

For (a) in Figure 5, if the change in CSI (which is a coefficient) is greater than the threshold 20 and it is determined that there is fluctuation, then the CSI of ANT1 is about 0.72s (slightly lower than 200) and the previous few. The difference between the values at each moment is less than 20, and the difference from the values at the next few moments is greater than 20 (that is, the moment when the fluctuation starts is 0.72s), which continues to fluctuate between 0.72s and 1.25s, and is 1.05s The difference between the value of time (about 210) and the value of the previous moment and the next moment is the largest (that is, the moment with the greatest fluctuation is 1.05s), the value at 1.25s (about 220) and the value of the following moments The difference is less than 20 (that is, the moment when the fluctuation ends is 1.25s). The difference between ANT2's CSI value at about 0.64s (slightly greater than 100) and the values at the previous moments are both greater than 20, and the difference from the values at the later moments are greater than 20 (that is, the moment when the fluctuation starts is 0.64s ), Continuously fluctuating up and down between 0.64s and 1.25s, and the difference between the value at 0.95s (approximately 230) and the value at the previous and next moments is the largest (that is, the maximum fluctuation is 0.95s), at The difference between the value at 1.25s (approximately 150) and the values at the following moments is less than 20 (that is, the moment when the fluctuation ends is 1.25s). Therefore, as shown in (a) of FIG. 5 above, it can be seen that the time at which ANT1 fluctuation starts is 0.72s later than the time at which ANT2 fluctuation starts 0.64s; the time when ANT1 maximum fluctuation is 1.05s is later than the time at which ANT2 maximum fluctuation 0.95s.

For (b) in Figure 5, if the RSSI amplitude change is greater than the threshold 2dB is determined to be a fluctuation, then the amplitude of the ANT1 RSSI is about 1.04s (about -33dB) and the value of the previous moments The difference is less than 2dB, and the difference with the value of the next few moments is greater than 2dB (that is, the moment when the fluctuation starts is 1.04s), which continuously fluctuates between 1.04s and 1.20s, and the amplitude at 1.12s (Approximately -37dB) and the amplitude difference between the previous moment and the next moment is the largest (that is, the maximum fluctuation time is 1.12s), the amplitude at 1.20s (about -39dB) and the amplitude of the following moments The difference between the values is less than 2dB (that is, the moment when the fluctuation ends is 1.20s). The difference between the ANT2 RSSI amplitude at about 0.72 (approximately -36dB) and the values at the previous moments are both less than 2dB, and the difference from the values at the following moments are greater than 2dB (that is, the moment when the fluctuation starts is 0.72 s), continuously fluctuating between 0.72s and 1.12s, and the difference between the amplitude at 1.08s (about -36dB) and the amplitude at the previous moment and the latter moment is the largest (that is, the moment when the fluctuation is the largest is 1.08s), the difference between the amplitude at 1.12s (approximately -38dB) and the amplitude at the following moments is less than 2dB (that is, the moment when the fluctuation ends is 1.12s). Therefore, according to (b) in FIG. 5 above, it can be seen that the time when the ANT1 fluctuation starts is 1.04s later than the time when the ANT2 fluctuation starts 0.72s; the time when the ANT1 maximum fluctuation is 1.12s later than the time when the ANT2 maximum fluctuation is 1.08s; ANT1 The time of the end of the fluctuation 1.20s is later than the time of the end of the fluctuation of ANT2 1.12s.

Further, before the terminal acquires the above wireless channel information or the moment when the wireless channel information fluctuates, the terminal may also perform some preprocessing on its waveform, such as data conversion and noise reduction. The data conversion may refer to processing the original data, for example, the original CSI information is a complex number, which is converted into amplitude or phase information, etc .; noise reduction methods may include sliding window averaging, filtering, wavelet decomposition noise reduction, multidimensional data One or more of the principal component analysis and so on, thereby reducing the impact of noise, making it easier for the terminal to detect fluctuations.

S202: Determine the target gesture according to the first moment, the second moment, the positions of the first antenna and the second antenna.

During the sliding of the target gesture, the closer the hand is to an antenna, the greater the influence on the antenna parameters of the antenna, and the farther the hand is from an antenna, the smaller the influence on the antenna parameters of the antenna, so according to at least The sequence of moments when the antenna parameters of the two antennas fluctuate can determine the sequence of at least two antennas affected by the target gesture, and then the sliding trajectory of the target gesture can be determined according to the positions of the at least two antennas, and then the target gesture can be determined .

The types of gestures that can be recognized by the multi-antenna-based gesture recognition method provided by the embodiments of the present application are related to the number and position of at least two antennas, and several possible implementation manners are described in detail below.

In a possible implementation manner, at least two antennas include antenna 1 and antenna 2, and antenna 1 and antenna 2 are located on the left and right sides of the terminal, respectively. If the antenna 1 and the antenna 2 have the same height, such as the antenna 1 and the antenna 2 shown in (a) in FIG. 3 above, the gestures that can be recognized may include: swiping left and swiping right; if the antenna 1 and antenna 2 are not Contours, such as antenna 1 and antenna 2 shown in (b) or (c) in Figure 3 above, the gestures that can be recognized can include: swiping left and swiping right; or the distance between antenna 1 and antenna 2 When it is relatively far away, for example, the antenna 1 is close to the top of the terminal and the antenna 2 is close to the bottom of the terminal, the gesture recognition can include: sliding down and sliding up. For example, in the example described in FIG. 5 above, the positions of the antenna 1 and the antenna 2 are as shown in (b) of FIG. 3, and the order of the moments when the antenna parameters of the antenna 1 and the antenna 2 shown in FIG. 5 fluctuate is The antenna 2 fluctuates first, and the antenna 1 fluctuates later. If the gestures recognized by this method include swiping left and swiping right, it can be determined that the swiping direction of the target gesture is from left to right, thus determining that the target gesture is swiping left If the gestures recognized by the method are defined to include downward sliding and upward sliding, it can be determined that the sliding direction of the target gesture is from bottom to top, thereby determining that the target gesture is sliding upward.

In a possible implementation manner, at least two antennas include antenna 1 and antenna 2, and antenna 1 and antenna 2 are located at the top and bottom of the terminal, respectively. If antenna 1 and antenna 2 have the same height, such as antenna 1 and antenna 2 shown in (a) of FIG. 6, the gestures recognized by this method may include: sliding down and sliding up; if antenna 1 and antenna 2 are not Contours, such as antenna 1 and antenna 2 shown in (b) or (c) in FIG. 6, the gestures recognized by this method may also include: sliding down and sliding up; or, between antenna 1 and antenna 2 When the distance is relatively long, for example, antenna 1 is close to the right side of the terminal and antenna 2 is close to the left side of the terminal, the gestures recognized by the method may include: swiping left and swiping right.

Optionally, as shown in FIG. 7, when at least two antennas include antenna 1 and antenna 2, antenna 1 and antenna 2 may also be located on the left and bottom, left and top, right and top of the terminal, respectively. Or right and bottom. By reasonably setting the distance between the antenna 1 and the antenna 2 shown in FIG. 7, gestures that can be recognized by the method include: swiping left and swiping right, or swiping down and swiping up, and this application is implemented Examples will not repeat them here.

It should be noted that, in the above two possible implementation manners, if the gestures that can be recognized include swiping left and swiping right, other gestures similar to left to right may also be determined as swiping right, such as , As shown in (a) of FIG. 8, slide from bottom left to top right, top left to bottom right, arc slide from left to right, wave slide from left to right, zigzag slide from left to right, first Swipe up and back to the right, or down and then right, etc .; other gestures similar to right to left are also determined to be swiped to the left, for example, as shown in (b) of FIG. 8 from top right to bottom left Slide, slide from bottom right to top left, slide from right to left arc, slide from right to left wavy, slide from right to left zigzag, slide up first and then left, or slide down first and then left. Similarly, if the defined recognizable gestures include swiping down and swiping up, other gestures similar to top to bottom can also be determined to slide down, and other gestures similar to bottom to top can also be determined to slide up. The specific other gestures are similar to the above-mentioned other gestures from left to right, or similar to the other gestures from right to left, which will not be repeated in the embodiments of the present application.

In a possible implementation manner, at least two antennas include antenna 1, antenna 2 and antenna 3, and antenna 1, antenna 2 and antenna 3 may be respectively disposed on different sides of the terminal. For example, as shown in (a) or (b) of FIG. 4 above, the antenna 1 is provided on the right side of the terminal, the antenna 2 is provided on the left side of the terminal, and the antenna 3 is provided on the bottom of the terminal, then the method Recognizable gestures may include: swiping left, swiping right, swiping down, and swiping up. Exemplarily, taking the antenna position shown in (a) of FIG. 4 as an example, assuming that the acquired antenna parameters of antenna 1 to antenna 3 correspond to fluctuation times of t1, t2, and t3, respectively, when t1, t2, and t3 When the sequence of t2-t3-t1 is t2, the target gesture can be determined to be swiping to the right, when the sequence of t1, t2 and t3 is t1-t3-t2, the target gesture can be determined to be swiping to the left, when t1, t2 and t3 It can be determined that the target gesture is sliding downward when the sequence of t1-t2-t3 is t, and when the sequence of t1, t2 and t3 is t3-t2-t1.

Optionally, as shown in (a) to (c) in FIG. 9, when at least two antennas include antenna 1, antenna 2 and antenna 3, antenna 1, antenna 2 and antenna 3 may also be located on the terminal ’s Top, left and bottom, or on the right, top and bottom, or on the left, top and right. When the positions of the antenna 1, the antenna 2 and the antenna 3 are as shown in FIG. 9, the gesture recognition method may include: swiping left, swiping right, swiping down, and swiping up.

In a possible implementation manner, when the number of antennas included in at least two antennas is three or more, and the positions of the antennas are different, the target gesture may also be recognized by the following method: the terminal acquires different antennas in different The fluctuation intensity curve corresponding to the antenna parameter at the time; for the antenna with the greatest fluctuation intensity at the same time, the terminal can determine that the target gesture is closest to the antenna at the moment; according to the change trend of the fluctuation intensity curve corresponding to each antenna parameter The relative movement direction of the gesture and the antenna (for example, when the fluctuation intensity corresponding to the antenna parameter of an antenna continuously increases within a certain period of time, it can indicate that the target gesture gradually approaches the antenna during the period of time, when the antenna ’s When the fluctuation intensity corresponding to the antenna parameter continuously decreases in a certain period of time, it can indicate that the target gesture gradually moves away from the antenna in this period of time); according to the position of the antenna with the largest fluctuation intensity corresponding to different moments, and the target gesture and each The relative movement direction of the antenna in different time periods to determine the target hand The sliding track, thus determines a target gesture.

In this case, the gestures recognized by this method may include multiple types, such as non-combined sliding and combined sliding. Non-combined sliding may include: sliding to the left, sliding to the right, sliding down, sliding up, sliding from the lower left to the upper right, sliding from the upper left to the lower right, sliding from the upper right to the lower left, sliding from the lower right to the upper left, etc. The combined slide can include: first up then right, first down then right, first up then left, first down then left, first left then up, first right then up, first Swipe down to the left, slide right to back, S-slide, O-slide, etc.

Exemplarily, at least two antennas include 4 antennas (ie, antenna 1 to antenna 4), and the positions of the four antennas are as shown in (a) of FIG. 10, that is, antenna 1 and antenna 2 are located on the left side of the terminal, And antenna 1 is near the top, antenna 2 is near the bottom, antenna 3 and antenna 4 are on the right side of the terminal, and antenna 3 is near the bottom and antenna 4 is near the bottom. For example, when the target gesture is swiping from the lower left to the upper right (as shown in (b) in FIG. 10), the terminal can acquire that the fluctuation intensity of the antenna parameter of the antenna 2 is the largest at the beginning, and after a period of time It gradually decreases within, so that it can be determined that the target gesture starts to slide from the position of the antenna 2 and gradually away from the antenna 2; secondly, the fluctuation intensity of the antenna parameters of the antenna 1 and the antenna 3 gradually increases and then gradually decreases after a period of time, so that Determine that the position of the target gesture from the antenna 1 and the antenna 3 is far and near, and then from near and far, so that the target gesture can be determined from the position of the antenna 2 toward the middle position of the antenna 1 and the antenna 3 and gradually away; finally, The fluctuation intensity of the antenna parameters of the antenna 4 gradually acquired by the terminal and finally reached the maximum, so that the terminal can determine that the target gesture finally stops at the position of the antenna 4, so that the target gesture can be determined from the lower left to the upper right according to the sliding trajectory slide. As another example, when the target gesture is to swipe down and then to the right (as shown in (c) in FIG. 10), the terminal can acquire that the fluctuation intensity of the antenna parameter of antenna 1 is the largest at the beginning. After a period of time, it gradually decreases, so that it can be determined that the target gesture starts to slide from the position of the antenna 1 and gradually away from the antenna 1; secondly, the fluctuation intensity of the antenna parameter of the antenna 2 gradually increases to reach a maximum after a period of time, and then gradually changes Small, so it can be determined that the target gesture gradually approaches antenna 2 and then gradually away from antenna 2, so that it can be determined that the target gesture slides from the position of antenna 1 to the position of antenna 2 and then away from antenna 2; finally, the terminal acquires the antenna The fluctuation intensity of the antenna parameter of 3 gradually increases, and finally reaches the maximum, so that the terminal can determine that the target gesture finally stops at the position of the antenna 3, that is, the target gesture moves away from the antenna 2 and slides toward the antenna 3, so that the sliding trajectory can be determined The target gesture is to swipe down and then to the right.

In the embodiment of the present application, the terminal can determine the sequence in which the target gesture passes each antenna during the movement according to the sequence of the moment when the antenna parameters of at least two antennas fluctuate, and then combine the positions of at least two antennas, Determine the movement trajectory of the target gesture to recognize the target gesture; or, combining the sequence of the moment when the antenna parameters of at least two antennas fluctuate and the fluctuation trend corresponding to the antenna parameters of each antenna, determine that the target gesture passes through The order of the two antennas, and finally combining the positions of at least two antennas to determine the movement trajectory of the target gesture, thereby recognizing the target gesture. Therefore, compared with the prior art, this method does not require complex pattern recognition, thereby improving the efficiency of gesture recognition and reducing the power consumption of the terminal; in addition, this method is not affected by the direction of the incoming wave of the wireless signal, so To a certain extent, the applicability of gesture recognition has been improved.

It can be understood that, in order to realize the above-mentioned functions, the above-mentioned terminal or the like includes a hardware structure and / or a software module corresponding to each function. Those skilled in the art should easily realize that, in combination with the exemplary units and algorithm steps described in the embodiments disclosed herein, the embodiments of the present invention can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed by hardware or computer software driven hardware depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the embodiments of the present invention.

In the embodiments of the present application, the above-mentioned terminals and the like may be divided into function modules according to the above method examples. For example, each function module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The above integrated modules may be implemented in the form of hardware or software function modules. It should be noted that the division of the modules in the embodiments of the present invention is schematic, and is only a division of logical functions. In actual implementation, there may be another division manner.

In the case of dividing each functional module corresponding to each function, this application provides a terminal. As shown in FIG. 11, the terminal includes: at least two antennas 1101, an acquisition unit 1102, and a determination unit 1103, and at least two antennas 1101 include a first antenna and a second antenna. Among them, at least two antennas 1101 are used to receive wireless signals; an acquisition unit 1102 is used to support the terminal to perform S201 in the above method embodiments, and / or other processes used in the technology described herein; a determination unit 1103 is used to support The terminal executes S202 in the above method embodiments, and / or other processes used in the technology described herein.

Of course, the above terminal includes but is not limited to the above listed unit modules. For example, the above terminal may further include a storage unit, which is used to store the program code and data of the terminal. In addition, the specific functions that can be achieved by the above functional units also include but are not limited to the functions corresponding to the method steps described in the above examples. For the detailed description of the other units of the above terminal, please refer to the detailed description of the corresponding method steps. Examples are not repeated here.

In terms of hardware implementation, the acquisition unit 1102 and the determination unit 1103 may be the processor 103 in the terminal shown in FIG. 1, the storage unit may be the memory 102 in the terminal shown in FIG. 1, and at least two antennas 1101 may be integrated in In the RF circuit 101 in the terminal shown in FIG. 1 described above. In the embodiment of the present application, the processor 103 may be used by the terminal to execute S201-S202 in the above method embodiments, and / or other processes of the technology described herein; the memory 102 may be used to store the program code of the terminal and Data; RF circuit 101 can be used to support the terminal to receive wireless signals.

In the several embodiments provided in this application, it should be understood that the disclosed device and method may be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the modules or units is only a division of logical functions. In actual implementation, there may be other divisions, for example, multiple units or components may be The combination can either be integrated into another device, or some features can be ignored, or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may be one physical unit or multiple physical units, that is, may be located in one place, or may be distributed in multiple different places . Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit. The above integrated unit may be implemented in the form of hardware or software functional unit.

If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a readable storage medium. Based on such an understanding, the technical solutions of the embodiments of the present application may essentially be part of or contribute to the existing technology, or all or part of the technical solutions may be embodied in the form of software products, which are stored in a storage medium In it, several instructions are included to enable the terminal to perform all or part of the steps of the methods described in the embodiments of the present application. The foregoing storage media include various media that can store program codes, such as a U disk, a mobile hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

The above is only the specific implementation of this application, but the scope of protection of this application is not limited to this, any changes or replacements within the technical scope disclosed in this application should be covered within the scope of protection of this application . Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

A gesture recognition method based on multiple antennas is characterized in that it is applied to a terminal including a first antenna and a second antenna, where the positions of the first antenna and the second antenna are different, and the method includes:

Acquiring a first moment, which is acquired when the fluctuation value of the antenna parameter of the first antenna is greater than a preset threshold;

Acquiring the second moment of the second antenna, the second moment is acquired when the fluctuation value of the antenna parameter of the second antenna is greater than the preset threshold, and the second moment is later than the first time;

The target gesture is determined according to the first moment, the second moment, the positions of the first antenna and the second antenna.
The method according to claim 1, wherein the first antenna and the second antenna are located on different sides of the terminal screen.
The method according to claim 1 or 2, wherein the first moment is the moment when the fluctuation value of the antenna parameter of the first antenna is greater than the preset threshold for the first time; the second moment is the The moment when the fluctuation value of the antenna parameter of the second antenna is greater than the preset threshold for the first time.
The method according to claim 1 or 2, wherein the first time is the time when the fluctuation value of the antenna parameter of the first antenna is the largest; the second time is the antenna parameter of the second antenna The moment when the fluctuation value is the largest.
The method according to claim 1 or 2, wherein the first moment is the moment when the fluctuation value of the antenna parameter of the first antenna is greater than the preset threshold for the last time; the second moment is the The moment when the fluctuation value of the antenna parameter of the second antenna is greater than the preset threshold for the last time.
The method according to any one of claims 1 to 5, wherein the antenna parameters include at least one of the following parameters: channel state information CSI amplitude, CSI phase, received signal strength indicator RSSI, signal noise Ratio SNR, channel quality indicator CQI, packet reception rate PRR, packet loss rate PLR, signal to interference ratio SIR, signal to interference plus noise ratio SINR, or channel sounding reference signal SRS.
The method according to any one of claims 1-6, wherein the antenna parameters further include at least one of the following parameters: impedance characteristic, pattern, correlation system, or channel calibration value.
A terminal is characterized in that the terminal includes a first antenna and a second antenna, and the positions of the first antenna and the second antenna are different. The terminal includes:

An acquiring unit, configured to acquire a first moment, which is acquired when the fluctuation value of the antenna parameter of the first antenna is greater than a preset threshold;

The acquiring unit is further configured to acquire a second moment, which is acquired when the fluctuation value of the antenna parameter of the second antenna is greater than the preset threshold, and the second moment is later than the The first moment

The determining unit is configured to determine a target gesture according to the first moment, the second moment, the positions of the first antenna and the second antenna.
The terminal according to claim 8, wherein the first antenna and the second antenna are located on different sides of the terminal screen.
The terminal according to claim 8 or 9, wherein the first moment is the moment when the fluctuation value of the antenna parameter of the first antenna is greater than the preset threshold for the first time; the second moment is the The moment when the fluctuation value of the antenna parameter of the second antenna is greater than the preset threshold for the first time.
The terminal according to claim 8 or 9, wherein the first time is the time when the fluctuation value of the antenna parameter of the first antenna is the largest; the second time is the antenna parameter of the second antenna The moment when the fluctuation value is the largest.
The terminal according to claim 8 or 9, wherein the first moment is the moment when the fluctuation value of the antenna parameter of the first antenna is greater than the preset threshold for the last time; the second moment is the The moment when the fluctuation value of the antenna parameter of the second antenna is greater than the preset threshold for the last time.
The terminal according to any one of claims 8 to 12, wherein the antenna parameters include at least one of the following parameters: channel state information CSI amplitude, CSI phase, received signal strength indicator RSSI, and signal to noise Ratio SNR, channel quality indicator CQI, packet reception rate PRR, packet loss rate PLR, signal to interference ratio SIR, signal to interference plus noise ratio SINR, or channel sounding reference signal SRS.
The terminal according to any one of claims 8 to 13, wherein the antenna parameters further include at least one of the following parameters: impedance characteristic, pattern, correlation system, or channel calibration value.
A terminal is characterized in that the terminal includes: a processor, a first antenna, and a second antenna, where the positions of the first antenna and the second antenna are different; wherein, the processor is configured to:

Acquiring a first moment, which is acquired when the fluctuation value of the antenna parameter of the first antenna is greater than a preset threshold;

Acquiring a second moment, which is acquired when the fluctuation value of the antenna parameter of the second antenna is greater than the preset threshold, and the second moment is later than the first moment;

The target gesture is determined according to the first moment, the second moment, the positions of the first antenna and the second antenna.
The terminal according to claim 15, wherein the first antenna and the second antenna are located on different sides of the terminal screen.
The terminal according to claim 15 or 16, wherein the antenna parameters include at least one of the following parameters: channel state information CSI amplitude, CSI phase, received signal strength indicator RSSI, signal-to-noise ratio SNR, Channel quality indicator CQI, packet reception rate PRR, packet loss rate PLR, signal-to-interference ratio SIR, signal-to-interference plus noise ratio SINR, or channel sounding reference signal SRS.
The terminal according to any one of claims 15 to 17, wherein the antenna parameters further include at least one of the following parameters: impedance characteristic, pattern, correlation system, or channel calibration value.
A computer-readable storage medium having instructions stored therein, characterized in that when the instructions run on a terminal having at least two antennas at different positions, the terminal is allowed to execute the above rights The multi-antenna based gesture recognition method provided in any one of claims 1-7 is required.
A computer program product, characterized in that when the computer program product runs on a terminal having at least two antennas at different positions, the terminal is caused to perform the multi-based Antenna gesture recognition method.