KR101708304B1 - Mobile terminal and motion recognizing method thereof - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile terminal and its motion recognition method capable of accurately recognizing a motion of a user at the time of stopping or moving. The motion recognition method of a mobile terminal according to an embodiment of the present invention can accurately recognize a motion of a user by automatically checking a change amount in a reference position (or direction) at the time of motion input, And the acceleration sensor is used to automatically recognize the vector displacement with respect to the initial reference value, so that various functions of the mobile terminal can be controlled without additional setting of the user.

Description

[0001] MOBILE TERMINAL AND MOTION RECOGNIZING METHOD THEREOF [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to motion recognition of a mobile terminal, and more particularly, to a mobile terminal and a motion recognition method thereof that can accurately recognize a motion of a user at the time of stopping or moving.

The mobile terminal may be configured to perform various functions. Examples of such various functions include a data and voice communication function, a function of photographing a video or a moving image through a camera, a voice storage function, a music file playback function through a speaker system, and an image or video display function. Some mobile terminals include additional functions to execute games, and some other mobile terminals are also implemented as multimedia devices. Moreover, recent mobile terminals can receive a broadcast or multicast signal to view a video or television program.

Further, efforts for supporting and increasing the functions of the mobile terminal continue. Such efforts include not only changes and improvements in structural components that form the mobile terminal, but also improvements in software or hardware. Among them, the touch function of the mobile terminal allows a user who is unfamiliar with the button / key input to conveniently perform the operation of the terminal by using the touch screen. In recent years, not only simple input but also user interface (UI) Is becoming an important function of Accordingly, as the touch function is applied to a mobile terminal in various forms, development of a user interface (UI) corresponding thereto is further demanded.

Generally, a mobile terminal performs a predefined operation according to a user's input through a keypad or various menus displayed on the screen. For example, when a user takes a predetermined motion with the mobile terminal in his / her hand, the user can perform performance according to the motion. When the user changes the direction or position of the mobile terminal such as navigation or augmented reality, Can be displayed differently.

However, in order to perform the operations using the mobile terminal, a specific reference direction is required before motion recognition is performed. That is, in the idle state, the user sets an initial reference start point for a separate menu and the first operation (downward). The reference starting point includes a direction, a position, and an angle.

The set reference start point is stored in a memory, and upon occurrence of a specific motion, recognizes motion based on the set reference start point and performs an operation corresponding to the recognized motion. For example, it changes the speed or size of the music according to the motion, and changes the music according to the motion direction.

However, since the conventional motion recognition method performs motion recognition based on a fixed reference starting point set in a stationary state, when the direction or position of the mobile terminal held by the user changes, the user must manually reset the reference point. The reference start point is reset using a separate correction button.

In particular, the conventional motion recognition method has a disadvantage in that motion recognition is difficult because the user can accurately recognize only in a stationary state and the direction or position changes irregularly while moving.

An object of the present invention is to provide a mobile terminal and a motion recognition method thereof capable of performing motion recognition by automatically checking a change amount according to a reference position change.

It is another object of the present invention to provide a mobile terminal and a motion recognition method thereof capable of automatically recognizing a direction change on the move and performing motion recognition.

According to an embodiment of the present invention, there is provided a motion recognition method for a mobile terminal, including: setting and storing an initial reference point; Executing a predetermined application by recognizing a motion input by a user according to the stored initial reference point; And a step of correcting the initial reference point by calculating a displacement of the corresponding motion with respect to the initial reference point when a specific motion having a direction change is input during execution of the application.

The predetermined specific application includes an application for musical instrument performance and an application for conducting an orchestra as an application that has continuous input and is sensitive to a change in direction. In addition, the predetermined application includes an application including a navigation and augmented reality in which motion recognition is required during movement or displacement calculation is required.

The initial reference point is set based on a direction, a position, and an angle, and a displacement with respect to the initial reference point includes a changed angle and a position with respect to an initial reference point.

The initial reference point is set by the user in the reference point setting menu or is continuously input, and the motion of the specific direction is automatically recognized and set.

The initial reference point is corrected using a changed angle with respect to the reference point when the user stops, and is corrected using the vector displacement during movement of the user.

According to an embodiment of the present invention, there is provided a mobile terminal including a display unit for displaying a reference point setting menu; A memory for storing reference points set in the reference point setting menu; A control unit for recognizing the motion inputted by the user according to the stored reference point and executing a predetermined application and calculating a displacement of the corresponding motion with respect to the stored reference point when a specific motion having a direction change is inputted during execution of the application, do.

The predetermined application includes an application for musical instrument performance, an application for orchestra command and a navigation application including augmented reality.

The reference point is set based on a direction, a position and an angle, and a displacement with respect to the reference point includes a changed angle and a position with respect to a reference point.

The reference point is corrected using a changed angle with respect to a reference point when the user stops, and is corrected using the vector displacement when the user is moving.

The mobile terminal according to an embodiment of the present invention includes a geomagnetism sensor for calculating an angle of a specific motion; A gyro sensor for detecting a user's rotation and direction during movement; And an acceleration sensor for measuring the movement distance of the user during the movement.

The reference point is corrected using a changed angle with respect to a reference point when the user stops, and is corrected using the vector displacement while the user is moving.

The motion recognition method of the mobile terminal according to the above embodiment has an effect of accurately recognizing the motion of the user by automatically checking a change amount in the reference position (or direction) at the time of motion input.

Also, the present invention automatically recognizes a vector displacement of an initial reference value by using a geomagnetic sensor (gyro sensor) and an acceleration sensor during movement, thereby automatically recognizing a direction change without addition of a user and controlling various functions of the mobile terminal There is an effect. That is, the present invention has an effect that correct motion recognition can be performed during direction switching and movement by automatically recognizing a vector displacement with respect to an initial reference value using a geomagnetic sensor and an acceleration sensor.

1 is a block diagram of a mobile terminal according to an embodiment of the present invention;
2 is a block diagram of a wireless communication system in which a mobile terminal may operate in accordance with an embodiment of the present invention.
Fig. 3 is a diagram showing an initial reference point setting at the time of drum playing in the embodiment of the present invention. Fig.
4 is a diagram showing a reference point setting menu in the embodiment of the present invention.
5 is a diagram illustrating an example of setting a reference point by checking repetitive operations in an embodiment of the present invention.
6 is a flowchart illustrating a method of motion recognition of a mobile terminal according to an embodiment of the present invention.
Figure 7 illustrates an initial reference point and a modified reference point in an embodiment of the present invention.
8 is a flowchart showing another embodiment of a motion recognition method of a mobile terminal according to an embodiment of the present invention.
FIG. 9 is a view showing a vector displacement according to an embodiment of the present invention, which is changed to a reference point. FIG.
10A and 10B are views showing an example in which a user recognizes and processes a motion taken while moving.

Hereinafter, a mobile terminal related to the present invention will be described in detail with reference to the drawings. The suffix "module" and " part "for components used in the following description are given merely for convenience of description, and do not give special significance or role in themselves. Accordingly, it should be noted that the above-mentioned "module" and "part"

The terminal may be implemented in various forms. For example, the terminal described in this specification may include a mobile terminal such as a mobile phone, a smart phone, a notebook computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player) And fixed terminals such as a digital TV, a desktop computer, and the like. In the following description, it is assumed that the terminal is a mobile terminal. However, it will be readily apparent to those skilled in the art that the configuration according to the following description may be applied to the fixed terminal, except for components specifically configured for mobile use.

1 is a block diagram of a mobile terminal according to an embodiment of the present invention.

The mobile terminal 100 includes a wireless communication unit 110, an audio / video input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, a memory 160, A controller 170, a controller 180, a power supply 190, and the like. 1 shows a mobile terminal having various components. However, not all illustrated components are required. A mobile terminal may be implemented by more components than the illustrated components, or a mobile terminal may be implemented by fewer components.

Hereinafter, the components will be described in order.

The wireless communication unit 110 may include one or more components that allow wireless communication between the mobile terminal 100 and the wireless communication system or wireless communication between the mobile terminal 100 and a network on which the mobile terminal 100 is located. For example, the wireless communication unit 110 may include a broadcast receiving module 111, a mobile communication module 112, a wireless Internet module 113, a short range communication module 114, and a location information module 115 .

The broadcast receiving module 111 receives broadcast signals and / or broadcast-related information from an external broadcast management server through a broadcast channel. The broadcast channel may include a satellite channel and a terrestrial channel. The broadcast management server may refer to a server for generating and transmitting broadcast signals and / or broadcast related information, or a server for receiving broadcast signals and / or broadcast related information generated by the broadcast management server and transmitting the generated broadcast signals and / or broadcast related information. The broadcast-related information may refer to a broadcast channel, a broadcast program, or information related to a broadcast service provider. The broadcast signal may include a TV broadcast signal, a radio broadcast signal, a data broadcast signal, and a broadcast signal in which a data broadcast signal is combined with a TV broadcast signal or a radio broadcast signal.

Meanwhile, the broadcast related information may be provided through a mobile communication network, and in this case, it may be received by the mobile communication module 112.

The broadcast-related information may exist in various forms. For example, an EPG (Electronic Program Guide) of DMB (Digital Multimedia Broadcasting) or an ESG (Electronic Service Guide) of Digital Video Broadcast-Handheld (DVB-H).

The broadcast receiving module 111 receives broadcasting signals using various broadcasting systems. In particular, the broadcasting receiving module 111 may be a Digital Multimedia Broadcasting-Terrestrial (DMB-T), a Digital Multimedia Broadcasting-Satellite (DMB-S) Only Digital Broadcast-Handheld (DVB-H), Integrated Services Digital Broadcast-Terrestrial (ISDB-T), and the like. Of course, the broadcast receiving module 111 is configured to be suitable for all broadcasting systems that provide broadcasting signals as well as the digital broadcasting system described above.

The broadcast signal and / or broadcast related information received through the broadcast receiving module 111 may be stored in the memory 160.

In addition, the mobile communication module 112 transmits and receives radio signals to at least one of a base station, an external terminal, and a server on a mobile communication network. Here, the wireless signal may include various types of data depending on a voice call signal, a video call signal, or a text / multimedia message transmission / reception.

The wireless Internet module 113 is a module for wireless Internet access, and the wireless Internet module 113 can be built in or externally. WLAN (Wi-Fi), Wibro (Wireless broadband), Wimax (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access) and the like can be used as wireless Internet technologies.

The short-range communication module 114 refers to a module for short-range communication. Bluetooth, radio frequency identification (RFID), infrared data association (IrDA), ultra wideband (UWB), ZigBee, and the like can be used as the short distance communication technology.

The location information module 115 is a module for confirming or obtaining the location of the mobile terminal. A typical example of the position information module 115 is a Global Position System (GPS) module. According to the present technology, the GPS module calculates distance information and accurate time information from three or more satellites, and then applies trigonometry to the calculated information to obtain three-dimensional current position information according to latitude, longitude, and altitude It can be calculated accurately. At present, a method of calculating position and time information using three satellites and correcting an error of the calculated position and time information using another satellite is widely used. In addition, the GPS module can calculate speed information by continuously calculating the current position in real time.

An audio / video (A / V) input unit 120 is for inputting an audio signal or a video signal, and may include a camera 121 and a microphone 122. The camera 121 processes an image frame such as a still image or a moving image obtained by the image sensor in the video communication mode or the photographing mode. Then, the processed image frame can be displayed on the display module 151.

The image frame processed by the camera 121 may be stored in the memory 160 or transmitted to the outside through the wireless communication unit 110. [ The camera 121 may be equipped with two or more cameras according to the configuration of the terminal.

The microphone 122 receives an external sound signal through a microphone in a communication mode, a recording mode, a voice recognition mode, or the like, and processes it as electrical voice data. The processed voice data can be converted into a form that can be transmitted to the mobile communication base station through the mobile communication module 112 when the voice data is in the call mode, and output. The microphone 122 may be implemented with various noise reduction algorithms for eliminating noise generated in the process of receiving an external sound signal.

The user input unit 130 generates input data for a user to control the operation of the terminal. The user input unit 130 may include a key pad, a dome switch, a touch pad (static / static), a jog wheel, a jog switch, and the like. Particularly, when the touch pad has a mutual layer structure with the display module 151 described later, it can be called a touch screen.

The sensing unit 140 senses the current state of the mobile terminal 100 such as the open / close state of the mobile terminal 100, the position of the mobile terminal 100, the presence or absence of user contact, the orientation of the mobile terminal, And generates a sensing signal for controlling the operation of the mobile terminal 100. For example, when the mobile terminal 100 is in the form of a slide phone, it is possible to sense whether the slide phone is opened or closed. Also, it is responsible for a sensing function related to whether or not the power supply unit 190 is powered on, whether the interface unit 170 is connected to an external device, and the like. Meanwhile, the sensing unit 140 may include a proximity sensor 141. This will be discussed later in connection with touch screens.

The sensing unit 140 includes a geomagnetic sensor for calculating the direction of movement when the user moves, a gyro sensor for calculating the direction of rotation, and an acceleration sensor for calculating the moving distance by multiplying the stride of the user by one step .

The interface unit 170 serves as an interface with all external devices connected to the mobile terminal 100. For example, a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, a port for connecting a device having an identification module, an audio I / O port, Video input / output (I / O) ports, earphone ports, and the like.

Here, the identification module is a chip that stores various information for authenticating the use right of the mobile terminal 100, and includes a user identification module (UIM), a subscriber identity module (SIM) ), A Universal Subscriber Identity Module (" USIM "), and the like. In addition, an apparatus having an identification module (hereinafter referred to as 'identification device') can be manufactured in a smart card format. Accordingly, the identification device can be connected to the terminal 100 through the port. The interface unit 170 receives data from an external device or receives power from the external device to transfer the data to each component in the mobile terminal 100 or to transmit data in the mobile terminal 100 to an external device.

The interface unit 170 may be a path through which power from the cradle is supplied to the mobile terminal 100 when the mobile terminal 100 is connected to an external cradle, Various command signals may be transmitted to the mobile terminal. The various command signals or the power source input from the cradle may be operated as a signal for recognizing that the mobile terminal is correctly mounted on the cradle.

The output unit 150 is for outputting an audio signal, a video signal, or an alarm signal. The output unit 150 may include a display module 151, an audio output module 152, and an alarm unit 153.

The display module 151 displays and outputs information processed by the mobile terminal 100. For example, when the mobile terminal is in the call mode, a UI (User Interface) or a GUI (Graphic User Interface) associated with a call is displayed. If the mobile terminal 100 is in the video communication mode or the photographing mode, the captured image and / or the received image or UI and GUI are displayed.

Meanwhile, as described above, when the display module 151 and the touch pad have a mutual layer structure to constitute a touch screen, the display module 151 can be used as an input device in addition to the output device. The display module 151 may be a liquid crystal display, a thin film transistor-liquid crystal display, an organic light-emitting diode, a flexible display, a three-dimensional display 3D display). Some of these displays can be configured to be transparent so that they can be viewed from outside. This may be referred to as a transparent display. A typical example of the transparent display is a transparent organic light emitting diode (TOLED) or the like. In addition, there may be two or more display modules 151 according to the embodiment of the mobile terminal 100. For example, the mobile terminal 100 may be provided with an external display module (not shown) and an internal display module (not shown) at the same time. The touch screen may be configured to detect not only the touch input position and area but also the touch input pressure.

The audio output module 152 outputs audio data received from the wireless communication unit 110 or stored in the memory 160 in a call signal reception mode, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, The sound output module 152 outputs an acoustic signal related to functions (e.g., call signal reception sound, message reception sound, etc.) performed in the mobile terminal 100. [ The sound output module 152 may include a speaker, a buzzer, and the like.

The alarm unit 153 outputs a signal for notifying the occurrence of an event of the mobile terminal 100. Examples of events that occur in the mobile terminal include call signal reception, message reception, key signal input, touch input, and the like. The alarm unit 153 may output a signal for informing occurrence of an event in a form other than an audio signal or a video signal. For example, it is possible to output a signal in a vibration mode. When a call signal is received or a message is received, the alarm unit 153 can output a vibration to notify it. Alternatively, when the key signal is input, the alarm unit 153 can output the vibration by the feedback to the key signal input. The user can recognize the occurrence of an event through the vibration output as described above. Of course, a signal for notifying the occurrence of an event may also be output through the display module 151 or the sound output module 152.

The memory 160 may store a program for processing and controlling the control unit 180 and may store a function for temporarily storing input / output data (e.g., a phone book, a message, a still image, . In addition, the memory 160 may store data on vibration and sound of various patterns outputted when a touch is input on the touch screen.

The memory 160 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory), a RAM (Random Access Memory) SRAM (Static Random Access Memory), ROM (Read Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), PROM (Programmable Read- And an optical disc. Also, the mobile terminal 100 may operate a web storage for performing a storage function of the memory 160 on the Internet.

The control unit 180 typically controls the overall operation of the mobile terminal. For example, voice communication, data communication, video communication, and the like. In addition, the control unit 180 may include a multimedia module 181 for multimedia playback. The multimedia module 181 may be implemented in the control unit 180 or may be implemented separately from the control unit 180. [

The controller 180 may perform a pattern recognition process for recognizing handwriting input or drawing input performed on the touch screen as characters and images, respectively.

The power supply unit 190 receives external power and internal power under the control of the control unit 180 as a battery, and supplies power necessary for operation of the respective components.

The various embodiments described herein may be embodied in a recording medium readable by a computer or similar device using, for example, software, hardware, or a combination thereof.

According to a hardware implementation, the embodiments described herein may be implemented as application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays May be implemented using at least one of processors, controllers, micro-controllers, microprocessors, and electrical units for performing functions. In some cases, And may be implemented by the control unit 180.

According to a software implementation, embodiments such as procedures or functions may be implemented with separate software modules that perform at least one function or operation. The software code may be implemented by a software application written in a suitable programming language. In addition, the software codes may be stored in the memory 160 and executed by the control unit 180. [

In the foregoing, the mobile terminal related to the present invention has been described in terms of components according to functions. Hereinafter, the mobile terminal related to the present invention will be further described with reference to FIGS. 2 and 3 in view of the components according to the outline. Hereinafter, for simplicity of explanation, a slider type mobile terminal will be described as an example among various types of mobile terminals such as a folder type, a bar type, a swing type, a slider type, and the like. Therefore, the present invention is not limited to the slider type mobile terminal but can be applied to all types of mobile terminals including the above-mentioned type.

The terminal 100 shown in Fig. 1 is configured to be operable in a communication system capable of transmitting data through a frame or packet, including a wired / wireless communication system and a satellite-based communication system .

Hereinafter, a communication system capable of operating a terminal according to the present invention will be described with reference to FIG.

The communication system may use different air interfaces and / or physical layers. For example, wireless interfaces that can be used by communication systems include, but are not limited to, Frequency Division Multiple Access ('FDMA'), Time Division Multiple Access ('TDMA'), Code Division Multiple Access (CDMA), Universal Mobile Telecommunications Systems (UMTS) (especially Long Term Evolution (LTE)), Global System for Mobile Communications (GSM) . Hereinafter, for the sake of convenience of description, the description will be limited to CDMA. However, the present invention is applicable to all communication systems including CDMA wireless communication systems.

2, the CDMA wireless communication system includes a plurality of terminals 100, a plurality of base stations (BSs) 270, and base station controllers (BSCs) 275 , And a mobile switching center ('MSC') 280. MSC 280 is configured to be coupled to a Public Switched Telephone Network (" PSTN ") 290, and is also configured to be coupled to BSCs 275. BSCs 275 may be coupled in pairs with BS 270 through a backhaul line. The backhaul line may be provided according to at least one of E1 / T1, ATM, IP, PPP, Frame Relay, HDSL, ADSL or xDSL. Thus, a plurality of BSCs 275 may be included in the system shown in FIG.

Each BS 270 may comprise at least one sector, and each sector may comprise an omnidirectional antenna or an antenna pointing to a particular direction of radial from BS 270. [ In addition, each sector may include two or more antennas of various types. Each BS 270 may be configured to support a plurality of frequency assignments and each of the plurality of frequency assignments has a specific spectrum (e.g., 1.25 MHz, 5 MHz, etc.).

The intersection of sector and frequency assignment may be referred to as a CDMA channel. BS 270 may be referred to as a Base Station Transceiver Subsystem (BTSs). In this case, the word "base station" may be referred to as a combination of one BSC 275 and at least one BS 270. [ The base station may also indicate a "cell site ". Alternatively, each of the plurality of sectors for a particular BS 270 may be referred to as a plurality of cell sites.

2, a broadcasting transmitter (BT) 295 transmits a broadcasting signal to the terminals 100 operating in the system. The broadcast receiving module 111 shown in FIG. 1 is provided in the terminal 100 to receive a broadcast signal transmitted by the BT 295.

In addition, FIG. 2 illustrates several Global Positioning System ('GPS') satellites 300. The satellites 300 help to locate at least one of the plurality of terminals 100. Although two satellites are shown in FIG. 2, useful location information may be obtained by two or more satellites. The location information module 115 shown in FIG. 1 cooperates with satellites 300 to obtain desired location information. Here, you can track your location using all of the technologies that can track your location, as well as your GPS tracking technology. Also, at least one of the GPS satellites 300 may optionally or additionally be responsible for satellite DMB transmission.

Among the typical operations of a wireless communication system, the BS 270 receives a reverse link signal from the various terminals 100. At this time, the terminals 100 are connecting a call, transmitting or receiving a message, or performing another communication operation. Each of the reverse link signals received by the particular base station 270 is processed by the particular base station 270. The data resulting from the processing is transmitted to the connected BSC 275. The BSC 275 provides call resource allocation and mobility management functions, including the organization of soft handoffs between the base stations 270. The BSC 275 also transmits the received data to the MSC 280 and the MSC 280 provides additional transmission services for connection with the PSTN 290. [ Similarly, the PSTN 290 connects to the MSC 280, the MSC 280 connects to the BSCs 275, and the BSCs 275 communicate with the BSs 270 ).

In the present invention, when a user takes a predetermined motion while holding the mobile terminal in hand, it automatically recognizes the direction or the position of the motion and controls the operation of a predetermined application of the mobile terminal.

The predetermined specific application includes an application for musical instrument performance and an application for conducting an orchestra as an application that has continuous input and is sensitive to a change in direction.

For example, it is possible to play a specific musical instrument (drum performance) according to a motion like a musical instrument game, change the speed or size of a specific music according to a motion, and perform an orchestra command.

In addition, the present invention can detect the direction of the mobile terminal even when the user moves or changes the location, thereby controlling the screen display of a predetermined application. The predetermined application includes an application including a navigation and augmented reality in which motion recognition is required during movement or displacement calculation is required.

For example, in applications such as navigation or augmented reality, applications that are affected by the user's position and orientation can quickly and accurately extract vector trajectories of the user using a gyro sensor and acceleration sensor, and based on the extracted vector trajectory, Provides map or loadview.

FIG. 3 shows an example of setting an initial reference point (reference value) in the embodiment of the present invention, and shows a method of setting a reference point in drum playing.

The reference point is set based on at least one of a direction, a position, and an angle at which the user holds the mobile terminal in a stationary state.

The control point 180 senses and sets the reference point when the user sets the reference point in the reference point setting menu or when the user moves the mobile terminal a predetermined number of times in the vertical direction, for example, in a state where the user holds the mobile terminal. The repeating operation includes an operation that takes place during a specific position and a certain period of time.

4 is an example of a reference point setting menu in the embodiment of the present invention.

As shown in Fig. 4, the reference point setting menu includes direction, position, and angle items, and the items can be added / deleted according to the needs of the user. When the setting of the reference point is completed, a predetermined message such as "reference point setting completed" is displayed on the screen.

The set reference point may be displayed when the user touches a predetermined position (e.g., the upper right corner) of the screen or may be confirmed through the reference point setting menu.

5 shows an example of setting a reference point by checking repetitive operations in the embodiment of the present invention.

5, when a user holds a mobile terminal and takes a specific motion such as an orchestra command, the controller 1800 checks the direction of the specific motion. When the direction (angle) is changed at the set reference point, the controller 180 calculates the degree of twist of the angle using the geomagnetism sensor And the reference point can be corrected based on the detected reference point.

6 is a flowchart illustrating a method of motion recognition of a mobile terminal according to an embodiment of the present invention.

As shown in FIG. 6, the user performs an iterative operation while holding the reference point setting menu or the mobile terminal to set an initial reference point (or a reference value) (S10). At this time, it is assumed that the initial reference point set by the user is set to the perpendicular direction as shown in FIG. The set reference point is stored in the memory 160 under the control of the controller 180 (S11).

7, when the user moves the mobile terminal in the left and right direction while holding the mobile terminal, the controller 180 starts to play the drum, Recognizes the motion, outputs the corresponding drum to the sound output module 152, and displays an image corresponding to the drum sound through the display 151 (S12).

If the user's posture changes and the drum playing direction changes as shown in FIG. 7, the controller 180 checks the timing and checks whether a specific motion is input by the user for a predetermined time (S13, S14). The specific motion includes motion having a downward direction or a constant period.

If a specific motion is detected by the user, the controller 180 controls the geomagnetic sensor (not shown) of the sensing unit 140 to calculate a changed angle with respect to the initial reference point, The reference point stored in the memory 160 is corrected (S15, S11).

On the other hand, if the user does not input a specific motion and ends the motion recognition (i.e., drum performance), the controller 180 ends all drum performance operations (S16).

In this way, when the user executes the application which is persistent and sensitive to the directional change by using the mobile terminal while the user is stationary, the user can recognize the direction change, that is, the change of the reference point automatically and correct the reference point, It is possible to perform a specific music performance, change the speed or size of the music, or conduct the orchestra command more accurately.

FIG. 8 is a flowchart illustrating a motion recognition method of a mobile terminal according to another embodiment of the present invention.

In the embodiment of FIG. 6 described above, the reference point is automatically changed by recognizing the direction change of the user, while the embodiment of FIG. 8 is an example of executing the application by recognizing the degree and direction of the user, that is, the vector displacement. In other words, the embodiment of FIG. 8 is effectively applied when motion of the user is required during movement or when displacement calculation is required in the navigation function.

The user sets a reference point through a reference point setting menu at a predetermined position (point a) (S20). The set reference point includes a specific position and direction. The set reference point is stored in the memory 160 under the control of the controller 180 (S21).

If the user takes a predetermined motion while the reference point is stored, the controller 180 recognizes the motion and processes the motion (S22).

Thereafter, the controller 180 checks the timing during the movement of the user and checks whether a specific motion is input by the user for a predetermined time (S23, S24).

If a specific motion is input from the user at the fixed position (point b) during the movement, the controller 180 calculates the changed vector displacement of the user based on the direction and distance calculated by the geomagnetic sensor and the acceleration sensor of the sensing unit 140. The geomagnetic sensor periodically calculates a moving direction when the user moves, and the acceleration sensor calculates a moving distance by multiplying the stride of the user by one step.

9, the control unit 180 calculates a vector displacement (position and direction) that is changed with respect to the reference point based on the direction and the distance calculated by the geomagnetic sensor and the acceleration sensor, corrects the reference point (S25) And stores the corrected reference point in the memory 160.

Accordingly, the controller 180 recognizes and processes the motion taken by the user at point b according to the corrected reference point.

On the other hand, if the user does not input a specific motion, the controller 180 ends all the motion recognition operations (S26).

FIGS. 10A and 10B show an example in which a user recognizes and processes a motion taken while moving. FIG. 10A is an example in which a specific motion is taken while holding the mobile terminal and the operation of the mobile terminal is executed.

Referring to FIG. 10A, when the user operates the motion key 'M', the controller 180 recognizes the direction and the movement distance of the user based on the direction and distance calculated by the geomagnetic sensor and the acceleration sensor, (Position and direction) set in the reference position (direction and direction), and extracts the motion trajectory of M accurately.

Once the motion key ('M') is recognized, a menu corresponding to the motion key is displayed on the screen of the display unit 151. When the user selects one new voice mail, for example, Execute mail.

FIG. 10B shows an example of screen display when navigation or augmented reality is operated while the user is moving.

In general, navigation or augmented reality is served to the user based on information provided by the current server. However, navigation and augmented reality may not be real-time updates or cause a service disruption where there is a radio disturbance such as a building. Accordingly, the present invention recognizes the displacement of a user moving in a place where there is a radio wave obstacle such as a building, and updates a map or a lob view in real time.

As described in FIG. 8, the user sets a reference point at a specific position (a point). Then, when the user moves, the gyro sensor computes the rotation and direction change when the user moves in real time (or periodically), and the acceleration sensor multiplies the user's stride by the repair (one step) to calculate the travel distance.

Therefore, the control unit 180 calculates the displacement information of the user on the basis of the information obtained from the gyro sensor and the acceleration sensor, and corrects the reference point at, for example, a specific point (point b) By updating maps or lob views, users can be provided with accurate navigation and augmented reality.

As described above, according to the present invention, it is possible to accurately recognize a user's motion by automatically checking a variation amount according to a reference position (or direction) when a specific motion is input, By automatically recognizing the vector displacement with respect to the reference value, the mobile terminal automatically recognizes the direction change without additionally setting the user and controls various functions of the mobile terminal.

Further, according to an embodiment of the present invention, the above-described method can be implemented as computer-readable code on a medium on which a program is recorded. The computer readable medium includes all kinds of recording devices in which data that can be read by a computer system is stored. Examples of the computer-readable medium include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage, and the like, and also implemented in the form of a carrier wave (for example, transmission over the Internet) . Further, the computer may include a control unit of the terminal.

The mobile terminal described above can be applied to not only the configuration and method of the embodiments described above but also all or some of the embodiments may be selectively combined so that various modifications may be made to the embodiments It is possible.

110: wireless communication unit 111: broadcast receiving module
112: mobile communication module 113; Wireless Internet Module
140; Sensing unit 150: output unit
151: display unit 160: memory
180:

Claims (13)

Setting and storing an initial reference point;
Executing a predetermined application by recognizing a motion inputted by a user according to an initial reference point;
And correcting the initial reference point by calculating a displacement of the corresponding motion with respect to an initial reference point when a specific motion having a direction change is input during execution of the application. 2. The method of claim 1,
An application for musical instrument performance, an application for conducting orchestra, and a navigation application including augmented reality. The method of claim 1, wherein the initial reference point
Direction, the position, and the angle of the mobile terminal. The method of claim 1, wherein the initial reference point
Wherein the user is set in the reference point setting menu or has a continuous input and automatically recognizes and sets motion in a specific direction. 2. The method of claim 1, wherein the displacement of motion relative to the initial reference point
And an angle and a position that are changed relative to an initial reference point. 6. The method of claim 5,
Wherein the measurement is performed using a geomagnetism sensor and an acceleration sensor. The method of claim 1, wherein the initial reference point
Wherein the user is corrected using a changed angle with respect to a reference point when the user is stopped, and is corrected using a vector displacement when the user is moving. A display unit for displaying a reference point setting menu;
A memory for storing reference points set in the reference point setting menu;
A control unit for recognizing the motion inputted by the user according to the stored reference point and executing a predetermined application and calculating a displacement of the corresponding motion with respect to the stored reference point when a specific motion having a direction change is inputted during execution of the application, And the mobile terminal. 9. The method of claim 8,
An application for musical instrument performance, an application for conducting orchestra, and a navigation application including augmented reality. 9. The method of claim 8,
Direction, position, and angle of the mobile terminal. 9. The method of claim 8, wherein the displacement of the motion relative to the reference point
And an angle and a position that are changed with respect to a reference point. The apparatus according to claim 8, further comprising: a geomagnetic sensor for calculating an angle of the specific motion;
A gyro sensor for detecting a user's rotation and direction during movement;
And an acceleration sensor for measuring a movement distance of the user during the movement. 9. The method of claim 8,
Wherein the user is corrected using a changed angle with respect to a reference point when the user is stopped, and is corrected using the vector displacement while the user is moving.

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