CN105765491A - A method of recognizing hand movements, an intelligent wristband and a terminal - Google Patents

Abstract

A method of recognizing hand movements, an intelligent wristband and a terminal are disclosed. In an embodiment, the intelligent wristband worn on a hand of a user starts a signal emitter to sent signals to the terminal, and the terminal positions the intelligent wristband according to the received signals so as to determine the movement track of the hand of the user. Hand movements of the user can be accurately positioned and recognized.

Description

A method for recognizing hand movement, a smart bracelet, and a terminal

technical field

The invention relates to the technical field of smart terminals, in particular to a method for recognizing hand movements, a smart bracelet and a terminal.

Background technique

Teenagers are all keen on somatosensory games now, and sensors are arranged in the somatosensory game consoles for sensing human body movements. Somatosensory games of hand movements such as tennis and table tennis are also becoming popular. When performing the somatosensory games of hand movements, it is necessary to accurately locate the user's hand movements.

Contents of the invention

Embodiments of the present invention provide a method for recognizing hand movement, a smart bracelet, and a terminal, so as to accurately locate and recognize a user's hand movement through the smart bracelet.

In a first aspect, a method for recognizing hand movement is provided, which is applied to a smart bracelet, and the smart bracelet is worn on a user's hand, and the method includes:

When the smart bracelet enters the game mode, start the signal transmitter on the smart bracelet;

The smart bracelet transmits a signal to the game terminal at a set frequency through the signal transmitter, so that the game terminal can locate the smart bracelet and determine the movement track of the user's hand.

In a first possible implementation manner, the smart bracelet transmits a signal to the game terminal at a set frequency through the signal transmitter, so that the game terminal can locate the smart bracelet and determine the user's The trajectory of the hand, including:

The smart bracelet transmits signals to the game terminal from multiple directions or multiple relative positions within the set area range through the signal transmitter at a set frequency, so that the game terminal transmits signals according to the signals sent by the signal transmitter. The directions or relative positions of multiple signals are used to locate the smart bracelet and determine the movement track of the user's hand.

In a second aspect, a method for recognizing hand movement is provided, the method comprising:

Receive multiple signals transmitted by the signal transmitter on the smart bracelet with a set frequency, wherein the smart bracelet is worn on the user's hand;

According to the multiple received signals, the smart bracelet is positioned to determine the motion track of the user's hand.

In a first possible implementation manner, the positioning of the smart bracelet according to the multiple received signals, and determining the movement trajectory of the user's hand includes:

identifying a direction in which the plurality of received signals was sent;

According to the directions in which the multiple signals are sent, a motion track of the user's hand is formed.

In a second possible implementation manner, the positioning of the smart bracelet according to the multiple received signals, and determining the movement trajectory of the user's hand includes:

Determine the relative position of the smart bracelet within the set area when the plurality of received signals are sent;

A motion track of the user's hand is formed according to the determined relative positions corresponding to the multiple signals.

In a third aspect, a smart bracelet is provided, the smart bracelet is worn on a user's hand, and the smart bracelet includes:

A starting unit is used to start the signal transmitter on the smart bracelet when the smart bracelet enters the game mode;

The transmitting unit is configured to transmit a signal to the game terminal at a set frequency through the signal transmitter, so that the game terminal can locate the smart bracelet and determine the movement track of the user's hand.

In a first possible implementation manner, the transmitting unit is specifically configured to:

The signal transmitter transmits signals to the game terminal from multiple directions or multiple relative positions within the set area range at a set frequency, so that the game terminal transmits according to the direction of the multiple signals sent by the signal transmitter Or the relative position, locate the smart bracelet, and determine the movement track of the user's hand.

In a fourth aspect, a terminal is provided, and the terminal includes:

The receiving unit is used to receive multiple signals transmitted by the signal transmitter on the smart bracelet with a set frequency, wherein the smart bracelet is worn on the user's hand;

The positioning unit is configured to position the smart bracelet according to the multiple received signals, and determine the motion track of the user's hand.

In a first possible implementation manner, the positioning unit includes:

an identification unit, configured to identify the direction in which the multiple received signals are sent;

The first trajectory forming unit is configured to form the movement trajectory of the user's hand according to the directions in which the multiple signals are sent.

In a second possible implementation manner, the positioning unit includes:

A determining unit, configured to determine the relative position of the smart bracelet within the set area when the plurality of received signals are transmitted;

The second trajectory forming unit is configured to form the motion trajectory of the user's hand according to the determined relative positions corresponding to the multiple signals.

Implementation of a method for recognizing hand movement provided by an embodiment of the present invention, a smart bracelet, and a terminal, the signal transmitter is activated by the smart bracelet worn on the user's hand, and a signal is sent to the terminal, and the terminal responds to the signal according to the received signal. The smart bracelet performs positioning to determine the movement trajectory of the user's hand, and can accurately locate and identify the user's hand movement.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required in the embodiments. Obviously, the accompanying drawings in the following description are only some of the present invention. Embodiments, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

FIG. 1 is a schematic flowchart of a method for recognizing hand movement provided by an embodiment of the present invention;

FIG. 2 is a schematic flowchart of another method for recognizing hand movement provided by an embodiment of the present invention;

FIG. 3 is a schematic flowchart of another method for recognizing hand movement provided by an embodiment of the present invention;

FIG. 4 is a schematic flowchart of another method for recognizing hand movement provided by an embodiment of the present invention;

Fig. 5 is a schematic structural diagram of a smart bracelet provided by an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a terminal provided by an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of another terminal provided by an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of another terminal provided by an embodiment of the present invention.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

Fig. 1 is a schematic flow chart of a method for recognizing hand movement provided by an embodiment of the present invention, which is applied to a smart bracelet, and the smart bracelet is worn on a user's hand, and the method includes the following steps:

S101. When the smart bracelet enters a game mode, start a signal transmitter on the smart bracelet.

The smart bracelet can preset the game mode, and when entering the game mode, the signal transmitter on the smart bracelet will be automatically activated. The smart bracelet can be instructed to enter the game mode by pressing a set button, voice command or set operation gesture.

The smart bracelet is worn on the user's hand, especially when the user is playing tennis or table tennis, it is worn on the hand holding the racket.

S102. The smart bracelet transmits a signal to the game terminal at a set frequency through the signal transmitter, so that the game terminal can locate the smart bracelet and determine the movement track of the user's hand.

Following the movement of the hand, the signal transmitter emits signals in different directions or different positions.

S102 specifically includes: the smart bracelet transmits signals to the game terminal from multiple directions or multiple relative positions within the set area at a set frequency through the signal transmitter, so that the game terminal transmits signals to the game terminal according to the signal The direction or relative position of the multiple signals sent by the transmitter is used to locate the smart bracelet and determine the movement track of the user's hand.

The game terminal is equipped with a sensor, and according to the received signal, it can sense the direction of each signal sent or the relative position within a certain area to locate the smart bracelet. According to the signal received within a certain period of time, the motion track of the user's hand can be formed.

Since the frequency of the user's hand movement is very fast when exercising, the transmission frequency of the signal transmitter should also be set relatively high.

Since the smart bracelet is worn on the user's hand and sends signals through its signal transmitter, the game terminal can sense the direction or relative position of the sent signal, thereby accurately locating and identifying the user's hand movement.

According to a method for recognizing hand movement provided by an embodiment of the present invention, the smart bracelet worn on the user's hand activates the signal transmitter to send a signal to the terminal, and the terminal locates the smart bracelet according to the received signal, Therefore, the movement track of the user's hand can be determined, and the movement of the user's hand can be accurately located and identified.

FIG. 2 is a schematic flowchart of another method for recognizing hand movement provided by an embodiment of the present invention. The method includes the following steps:

S201. Receive multiple signals transmitted by a signal transmitter on a smart bracelet at a set frequency.

Wherein, the smart bracelet is worn on the user's hand, especially when the user is playing tennis or table tennis, it is worn on the hand holding the racket.

Following the movement of the hand, the signal transmitter on the smart bracelet emits signals in different directions or different positions. The terminal receives multiple signals transmitted by the signal transmitter on the smart bracelet at a set frequency.

S202. Position the smart bracelet according to the multiple received signals, and determine a motion track of the user's hand.

The game terminal is equipped with a sensor, which can sense and analyze the received signal, and locate the smart bracelet. According to the signal received within a certain period of time, the motion track of the user's hand can be formed.

Since the frequency of the user's hand movement is very fast when exercising, the transmission frequency of the signal transmitter should also be set relatively high.

Since the smart bracelet is worn on the user's hand and sends signals through its signal transmitter, the game terminal can sense the direction or relative position of the sent signal, thereby accurately locating and identifying the user's hand movement.

According to a method for recognizing hand movement provided by an embodiment of the present invention, the smart bracelet worn on the user's hand activates the signal transmitter to send a signal to the terminal, and the terminal locates the smart bracelet according to the received signal, Therefore, the movement track of the user's hand can be determined, and the movement of the user's hand can be accurately located and identified.

Fig. 3 is a schematic flowchart of another method for recognizing hand movement provided by an embodiment of the present invention, the method includes the following steps:

S301. Receive multiple signals transmitted by a signal transmitter on a smart bracelet at a set frequency.

Wherein, the smart bracelet is worn on the user's hand, especially when the user is playing tennis or table tennis, it is worn on the hand holding the racket.

Following the movement of the hand, the signal transmitter on the smart bracelet emits signals in different directions. The terminal receives multiple signals transmitted by the signal transmitter on the smart bracelet at a set frequency.

S302. Identify sending directions of the multiple received signals.

Since the hand wearing the smart bracelet is constantly waving, the direction in which the signal transmitter sends signals is also different. The sensors on the terminal are capable of sensing and identifying the direction in which multiple received signals are sent.

S303. According to the directions in which the multiple signals are sent, form a motion track of the user's hand.

According to the direction in which the plurality of signals are sent, a motion trajectory forming the user's hand can be drawn.

It should be noted that if the user's hand moves violently, the processing of receiving, identifying and forming the motion trajectory of the signal is completed in a relatively short period of time, and the motion trajectory can be output on the terminal.

According to a method for recognizing hand movement provided by an embodiment of the present invention, the smart bracelet worn on the user's hand activates the signal transmitter to send a signal to the terminal, and the terminal sends a signal to the smart bracelet according to the direction of the received signal. Positioning is performed to determine the motion track of the user's hand, and the user's hand motion can be accurately positioned and identified.

FIG. 4 is a schematic flowchart of another method for recognizing hand movement provided by an embodiment of the present invention. The method includes the following steps:

S401. Receive multiple signals transmitted by a signal transmitter on a smart bracelet at a set frequency.

Wherein, the smart bracelet is worn on the user's hand, especially when the user is playing tennis or table tennis, it is worn on the hand holding the racket.

Following the movement of the hand, the signal transmitter on the smart bracelet emits signals at different relative positions within the set area. The terminal receives multiple signals transmitted by the signal transmitter on the smart bracelet at a set frequency. The set area range refers to the user's hand movement range.

S402. Determine the relative position of the smart bracelet within the set area when the multiple received signals are sent.

According to the relative position of the signal emitted by the signal transmitter, the relative position of the smart bracelet or the hand can be determined.

S403. According to the determined relative positions corresponding to the multiple signals, form a motion track of the user's hand.

According to multiple relative positions determined by multiple signals, a motion trajectory forming the user's hand can be drawn.

It should be noted that if the user's hand moves violently, the processing of receiving the signal, determining the position, and forming the motion track is completed in a relatively short period of time, and the motion track can be output on the terminal.

According to a method for recognizing hand movement provided by an embodiment of the present invention, the smart bracelet worn on the user's hand activates the signal transmitter to send a signal to the terminal, and the terminal sends the signal according to the received signal. Position the smart bracelet by determining the relative position within the range of the area, so as to determine the movement trajectory of the user's hand, and can accurately locate and identify the user's hand movement.

FIG. 5 is a schematic structural diagram of a smart bracelet provided by an embodiment of the present invention. The smart bracelet is worn on a user's hand. The smart watch 1000 includes: a starting unit 11 and a transmitting unit 12 connected to each other.

The starting unit 11 is used to start the signal transmitter on the smart bracelet when the smart bracelet enters the game mode.

The smart bracelet can preset the game mode, and when entering the game mode, the signal transmitter on the smart bracelet will be automatically activated. The smart bracelet can be instructed to enter the game mode by pressing a set button, voice command or set operation gesture.

The smart bracelet is worn on the user's hand, especially when the user is playing tennis or table tennis, it is worn on the hand holding the racket.

The transmitting unit 12 is configured to transmit a signal to the game terminal at a set frequency through the signal transmitter, so that the game terminal can locate the smart bracelet and determine the movement track of the user's hand.

Following the movement of the hand, the signal transmitter emits signals in different directions or different positions.

The transmitting unit 12 is specifically used to: transmit signals to the game terminal from multiple directions or multiple relative positions within the set area range through the signal transmitter at a set frequency, so that the game terminal can transmit signals according to the signal transmitter. The directions or relative positions of the multiple signals sent are used to locate the smart bracelet and determine the movement track of the user's hand.

The game terminal is equipped with a sensor, and according to the received signal, it can sense the direction of each signal sent or the relative position within a certain area to locate the smart bracelet. According to the signal received within a certain period of time, the motion track of the user's hand can be formed.

Since the frequency of the user's hand movement is very fast when exercising, the transmission frequency of the signal transmitter should also be set relatively high.

Since the smart bracelet is worn on the user's hand and sends signals through its signal transmitter, the game terminal can sense the direction or relative position of the sent signal, thereby accurately locating and identifying the user's hand movement.

According to a smart bracelet provided by an embodiment of the present invention, the smart bracelet worn on the user's hand activates the signal transmitter to send a signal to the terminal, and the terminal locates the smart bracelet according to the received signal, thereby determining the user's The movement trajectory of the user's hand can accurately locate and identify the user's hand movement.

FIG. 6 is a schematic structural diagram of a terminal provided by an embodiment of the present invention. The terminal 2000 includes: a receiving unit 21 and a positioning unit 22 connected to each other.

The receiving unit 21 is configured to receive multiple signals transmitted by the signal transmitter on the smart bracelet at a set frequency.

Wherein, the smart bracelet is worn on the user's hand, especially when the user is playing tennis or table tennis, it is worn on the hand holding the racket.

Following the movement of the hand, the signal transmitter on the smart bracelet emits signals in different directions or different positions. The terminal receives multiple signals transmitted by the signal transmitter on the smart bracelet at a set frequency.

The positioning unit 22 is configured to position the smart bracelet according to the received signals, and determine the movement track of the user's hand.

The game terminal is equipped with a sensor, which can sense and analyze the received signal, and locate the smart bracelet. According to the signal received within a certain period of time, the motion track of the user's hand can be formed.

Since the frequency of the user's hand movement is very fast when exercising, the transmission frequency of the signal transmitter should also be set relatively high.

Since the smart bracelet is worn on the user's hand and sends signals through its signal transmitter, the game terminal can sense the direction or relative position of the sent signal, thereby accurately locating and identifying the user's hand movement.

According to a terminal provided by an embodiment of the present invention, the smart bracelet worn on the user's hand activates the signal transmitter to send a signal to the terminal, and the terminal locates the smart bracelet according to the received signal, thereby determining the user's wristband. The movement trajectory of the hand can accurately locate and identify the user's hand movement.

FIG. 7 is a schematic structural diagram of another terminal provided by an embodiment of the present invention. The terminal 3000 includes: an interconnected receiving unit 31 and a positioning unit 32, wherein the positioning unit 32 further includes an interconnected identification unit 321 and a first track Unit 322 is formed.

The receiving unit 31 is configured to receive multiple signals transmitted by the signal transmitter on the smart bracelet at a set frequency.

Wherein, the smart bracelet is worn on the user's hand, especially when the user is playing tennis or table tennis, it is worn on the hand holding the racket.

Following the movement of the hand, the signal transmitter on the smart bracelet emits signals in different directions. The terminal receives multiple signals transmitted by the signal transmitter on the smart bracelet at a set frequency.

The positioning unit 32 is configured to position the smart bracelet according to the received signals, and determine the movement track of the user's hand.

In this embodiment, the positioning unit 32 further includes an identification unit 321 and a first trajectory forming unit 322 that are connected to each other.

The identifying unit 321 is configured to identify sending directions of the multiple received signals.

Since the hand wearing the smart bracelet is constantly waving, the direction in which the signal transmitter sends signals is also different. The sensors on the terminal are capable of sensing and identifying the direction in which multiple received signals are sent.

The first trajectory forming unit 322 is configured to form a movement trajectory of the user's hand according to the directions in which the multiple signals are sent.

According to the direction in which the plurality of signals are sent, a motion trajectory forming the user's hand can be drawn.

It should be noted that if the user's hand moves violently, the processing of receiving, identifying and forming the motion trajectory of the signal is completed in a relatively short period of time, and the motion trajectory can be output on the terminal.

According to a terminal provided by an embodiment of the present invention, the smart bracelet worn on the user's hand activates the signal transmitter to send a signal to the terminal, and the terminal locates the smart bracelet according to the direction in which the received signal is sent, thereby determining The movement trajectory of the user's hand can accurately locate and identify the movement of the user's hand.

FIG. 8 is a schematic structural diagram of another terminal provided by an embodiment of the present invention. The terminal 4000 includes an interconnected receiving unit 41 and a positioning unit 42, wherein the positioning unit 42 further includes an interconnected determining unit 421 and a second trajectory forming unit. Unit 422.

The receiving unit 41 is configured to receive multiple signals transmitted by the signal transmitter on the smart bracelet at a set frequency.

Wherein, the smart bracelet is worn on the user's hand, especially when the user is playing tennis or table tennis, it is worn on the hand holding the racket.

Following the movement of the hand, the signal transmitter on the smart bracelet emits signals at different relative positions within the set area. The terminal receives multiple signals transmitted by the signal transmitter on the smart bracelet at a set frequency. The set area range refers to the user's hand movement range.

The positioning unit 42 is configured to position the smart bracelet according to the received signals, and determine the movement track of the user's hand.

In this embodiment, the positioning unit 42 further includes a determining unit 421 and a second trajectory forming unit 422 that are connected to each other.

The determination unit 421 is configured to determine the relative position of the smart bracelet within the set area when the multiple received signals are sent.

According to the relative position of the signal emitted by the signal transmitter, the relative position of the smart bracelet or the hand can be determined.

The second trajectory forming unit 422 is configured to form a movement trajectory of the user's hand according to the determined relative positions corresponding to the plurality of signals.

According to multiple relative positions determined by multiple signals, a motion trajectory forming the user's hand can be drawn.

It should be noted that if the user's hand moves violently, the processing of receiving the signal, determining the position, and forming the motion track is completed in a relatively short period of time, and the motion track can be output on the terminal.

According to a terminal provided by an embodiment of the present invention, the signal transmitter is activated by the smart bracelet worn on the user's hand to send a signal to the terminal. The relative position is used to locate the smart bracelet to determine the movement track of the user's hand, which can accurately locate and identify the user's hand movement.

It should be noted that for the foregoing method embodiments, for the sake of simple description, they are expressed as a series of action combinations, but those skilled in the art should know that the present invention is not limited by the described action sequence. Because according to the present invention, certain steps may be performed in other order or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification belong to preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

In the foregoing embodiments, the descriptions of each embodiment have their own emphases, and for parts not described in detail in a certain embodiment, reference may be made to relevant descriptions of other embodiments.

The steps in the methods of the embodiments of the present invention can be adjusted, combined and deleted according to actual needs.

The units in the device of the embodiment of the present invention can be combined, divided and deleted according to actual needs. Those skilled in the art may combine or combine different embodiments and features of different embodiments described in this specification.

Through the above description of the implementation manners, those skilled in the art can clearly understand that the present invention can be implemented by hardware, firmware, or a combination thereof. When implemented in software, the functions described above may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a computer. Take this as an example but not limited to: the computer-readable medium may include Random Access Memory (Random Access Memory, RAM), Read-Only Memory (Read-Only Memory, ROM), Electrically Erasable Programmable Read-Only Memory (Electrically Erasable Programmable Read-Only Memory, EEPROM) , CD-ROM (Compact Disc Read-Only Memory, CD-ROM) or other optical disk storage, magnetic disk storage medium or other magnetic storage devices, or can be used to carry or store desired program codes in the form of instructions or data structures and can be stored by a computer any other medium. also. Any connection can suitably be a computer-readable medium. For example, if the software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair wire, Digital Subscriber Line (DSL), or wireless technologies such as infrared, radio, and microwave, then the same Coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, wireless, and microwave are included in the fixation of the respective media. As used herein, disk and disc include compact disc (CD), laser disc, optical disc, digital versatile disc (DVD), floppy disc, and Blu-ray disc, where discs usually reproduce data magnetically, and discs Lasers are used to optically reproduce the data. Combinations of the above should also be included within the scope of computer-readable media.

In a word, the above descriptions are only preferred embodiments of the technical solutions of the present invention, and are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. A method for identifying hand motions, applied to a smart bracelet, which is worn on a user's hand, characterized in that the method comprises: When the smart bracelet enters the game mode, start the signal transmitter on the smart bracelet; The smart bracelet transmits a signal to the game terminal at a set frequency through the signal transmitter, so that the game terminal can locate the smart bracelet and determine the movement track of the user's hand. 2. The method according to claim 1, wherein the smart bracelet transmits a signal to the game terminal at a set frequency through the signal transmitter, so that the game terminal can locate the smart bracelet , determining the motion trajectory of the user's hand, including: The smart bracelet transmits signals to the game terminal from multiple directions or multiple relative positions within the set area range through the signal transmitter at a set frequency, so that the game terminal transmits signals according to the signals sent by the signal transmitter. The directions or relative positions of multiple signals are used to locate the smart bracelet and determine the movement track of the user's hand. 3. A method for identifying hand movements, characterized in that the method comprises: Receive multiple signals transmitted by the signal transmitter on the smart bracelet with a set frequency, wherein the smart bracelet is worn on the user's hand; According to the multiple received signals, the smart bracelet is positioned to determine the motion track of the user's hand. 4. The method according to claim 3, wherein the positioning of the smart bracelet and determining the movement track of the user's hand according to the received signals comprises: identifying a direction in which the plurality of received signals are sent; According to the directions in which the multiple signals are sent, a motion track of the user's hand is formed. 5. The method according to claim 3, wherein the positioning of the smart bracelet and determining the movement track of the user's hand according to the received signals comprises: Determine the relative position of the smart bracelet within the set area when the plurality of received signals are sent; A motion track of the user's hand is formed according to the determined relative positions corresponding to the multiple signals. 6. A kind of smart wristband, described smart wristband is worn on the user's hand, is characterized in that, described smart wristband comprises: A starting unit is used to start the signal transmitter on the smart bracelet when the smart bracelet enters the game mode; The transmitting unit is configured to transmit a signal to the game terminal at a set frequency through the signal transmitter, so that the game terminal can locate the smart bracelet and determine the movement track of the user's hand. 7. The smart bracelet according to claim 6, wherein the transmitting unit is specifically used for: The signal transmitter transmits signals to the game terminal from multiple directions or multiple relative positions within the set area range at a set frequency, so that the game terminal transmits according to the direction of the multiple signals sent by the signal transmitter Or the relative position, locate the smart bracelet, and determine the movement track of the user's hand. 8. A terminal, characterized in that the terminal comprises: The receiving unit is used to receive multiple signals transmitted by the signal transmitter on the smart bracelet with a set frequency, wherein the smart bracelet is worn on the user's hand; The positioning unit is configured to position the smart bracelet according to the received signals, and determine the movement track of the user's hand. 9. The terminal according to claim 8, wherein the positioning unit comprises: an identification unit, configured to identify the direction in which the multiple received signals are sent; The first trajectory forming unit is configured to form the movement trajectory of the user's hand according to the directions in which the multiple signals are sent. 10. The terminal according to claim 8, wherein the positioning unit comprises: A determining unit, configured to determine the relative position of the smart bracelet within the set area when the plurality of received signals are transmitted; The second trajectory forming unit is configured to form the motion trajectory of the user's hand according to the determined relative positions corresponding to the multiple signals.