WO2013117082A1 - Smartphone base, mobile phone, and implementing method therefor - Google Patents

Description

 Smartphone base and mobile phone and implementation method thereof

Technical field

 The present invention relates to the technical field of communication terminal devices, and in particular, to a smart phone base and a mobile phone and a method for implementing the same.

Background technique

 With the development of mobile communications, people are increasingly demanding various novelty applications for mobile terminals. At present, with the continuous expansion of multimedia functions of mobile phones, multimedia functions such as mobile phone photographing, video recording, and recording are emerging one after another. Various new functional devices such as mobile phones including camera and camera functions, rotating cameras, mobile phones connected to televisions, and mobile phone music bases have appeared. To meet the increasing demand of users in multimedia applications.

 At the same time, in order to make it more convenient for users, functions such as auto focus, face tracking, and smile recognition have appeared, which makes the user's operation foolish, and only a few operations can achieve good results and improve the user experience.

 In addition, many mobile phones also provide a mobile phone dock for charging and data synchronization functions such as IPHONE. The application of this mobile phone base enhances the grade of the product and is also convenient for users. However, some mobile phone bases that are currently available are relatively single and have a single function, and are not closely integrated with the functions of the mobile phone. Summary of the invention

 The technical problem solved by the present invention is to provide a smart phone base and a mobile phone and an implementation method thereof, which can realize automatic tracking of the camera by capturing the base of the mobile phone and the rotation of the mobile phone connected to the base, and performing capturing or video capturing.

 In order to solve the above technical problem, the present invention provides a smart phone base, the smart phone base includes a base, a control module, a driving module, and a bracket disposed on the base.

 The bracket is configured to: fix the mobile phone on the bracket by a snap device;

The control module is configured to: according to the received image capture and calibration module in the mobile phone Sending a control signal, sending a driving signal to the driving module;

 The driving module is configured to: according to the received driving signal sent by the control module, preferably, the control signal includes: a center position coordinate of the face image captured by the mobile phone camera and a color of the mobile phone camera The offset or correction amount of the coordinates of the position of the center of the frame.

 Preferably, the driving module includes a servo motor, and the servo motor is configured to: a rotating gear is provided with a gear and a gear groove, the servo motor rotates to drive the gear to rotate, and the gear is horizontally and horizontally in the gear groove / or up and down movement, driving the bracket # text corresponding movement.

 Preferably, the control module is configured to: control the speed of the rotation of the drive motor and the angle of rotation by converting the control signal to the drive signal.

 Preferably, the snap device includes a fixed buckle on the bracket.

 The invention also provides a mobile phone, the mobile phone comprising an imaging device, the imaging device comprising: an image capturing and calibration module,

 The image capturing and calibration module is configured to: obtain a face image offset or a correction amount according to the image data collected by the mobile phone camera, and send a control signal according to the face image offset or the correction amount to control the The mobile phone achieves translation and/or rotation.

 Preferably, the face image offset or the correction amount includes: an offset amount or a correction amount of a center position coordinate of the face image captured by the mobile phone camera and an imaging frame center position coordinate of the mobile phone camera.

 Preferably, the image capturing and calibrating module is configured to: determine a face frame according to the face image captured by the mobile phone camera, and determine a center position coordinate of the face frame as a center position coordinate of the face image .

 The invention also provides a method for implementing a smart phone base, wherein

 Obtaining a face image offset or correction amount according to image data collected by the mobile phone camera, and issuing a control signal to the control module;

The control module sends a driving signal to the driving module in the smart phone base according to the received control signal; The driving module drives the smart phone base and the mobile phone terminal that is connected to the smart phone base to perform translation and/or rotation according to the received driving signal sent by the control module.

 Preferably, the face image offset or the correction amount includes: an offset amount or a correction amount of a center position coordinate of the face image captured by the mobile phone camera and an imaging frame center position coordinate of the mobile phone camera.

 The embodiment of the invention integrates the functions of face tracking, smile recognition, mobile phone multi-function base, etc., by designing a mobile phone camera to actively recognize, automatically controlling the base rotation pitch, realizing automatic camera tracking, automatic capturing, automatic camera and the like, Users don't need to be distracted. The smart phone base can automatically capture the details of life, record the bits and pieces of life, and realize more interesting functions, greatly improving the user experience. BRIEF abstract

 The drawings are intended to provide a further understanding of the invention, and are intended to be illustrative of the invention. In the drawing:

 1 is a schematic diagram of a mobile phone and a smart phone base according to an embodiment of the present invention;

 2 is a schematic structural diagram of a smart base according to an embodiment of the present invention;

 3 is a schematic diagram of a rotation angle of a smart base according to an embodiment of the present invention;

 4 is a schematic diagram of a calibration principle according to an embodiment of the present invention;

 FIG. 5 is a schematic flowchart diagram of a method for implementing a smart phone base according to an embodiment of the present invention.

Preferred embodiment of the invention

 The embodiment provides a method for automatically recognizing a face through a mobile phone camera, and controlling the base of the smart phone and the mobile phone connected to the base to rotate toward the user to realize automatic tracking of the portrait, thereby automatically capturing or automatically capturing the image.

 The smart phone base provided by the embodiment adopts the following technical solutions:

The smart phone base includes a base, a control module, a drive module, and a base On the bracket,

 The bracket is configured to fix the mobile phone on the bracket by using a fastening device;

 The control module is configured to send a driving signal to the driving module according to the received control signal sent by the image capturing and calibration module in the mobile phone;

 The driving module is configured to: according to the received driving signal sent by the control module, specifically, the driving module may use a servo motor, and a rotating shaft of the servo motor is provided with a gear and a gear slot, and the gear and the gear are The gear groove of the base is connected, the rotation of the motor drives the gear to rotate, and the gear rolls in the gear groove to drive the bracket to move horizontally and/or vertically.

 Specifically, the locking device on the bracket can be implemented by using a fixed buckle.

 Preferably, the specific working process of the method for implementing the smart phone in the embodiment of the present invention is as follows: the face capturing module in the mobile phone captures the face and determines the position coordinates of the face; and then the automatic calibration module according to the position coordinates of the face and the entire imaging frame The difference between the center coordinates, the offset is obtained, and the control signal is sent to the control module in the base through the communication interface between the mobile phone and the smart phone base; the control module of the base drives the base motor to rotate according to the control signal, Rotate the base and the phone to point the camera at the face.

 Preferably, the main functions of the above control module are as follows: according to the control signal sent by the image capturing and calibration module, output a vector of horizontal displacement and vertical displacement to the motor, and send a driving signal to the servo motor to control the horizontal or vertical direction of the servo motor. Rotate, which in turn drives the phone to rotate, enabling automatic tracking of portraits.

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, in the case of no conflict, the features in the embodiments and the embodiments in the present application may be arbitrarily combined with each other.

 FIG. 1 is a schematic diagram of a mobile phone terminal and a smart phone base according to an embodiment of the present invention. As shown in FIG. 1, the handset 101 is combined with the smartphone base 102 to form an automatic shooting tracking system 103.

The mobile phone terminal has an interface connected to the smart base (usually a standard USB interface, or through other detachable/detachable connection methods, such as a fixed buckle, etc.), and the mobile phone can support face recognition, a smile shutter; Smartphone base, including bracket for fixing to the mobile phone, internal Servo motor, control module and related interfaces.

 Among them, the mobile phone camera incorporates the functions of face recognition and smile shutter, which is a camera technology commonly used in digital cameras and high-end camera phones. Face recognition is developed on the face recognition technology based on software technology. By analyzing the image samples collected, the face is distinguished from the background to achieve autofocus, which ensures the clarity of the face when shooting. Smile Shutter is to increase the recognition of facial expressions on the basis of face recognition. It automatically captures the current high-end camera phones of people's faces. At present, some manufacturers have launched mobile phones with face recognition and smile shutters. This technology is relatively mature. .

 As shown in FIG. 2, the smart phone base of the embodiment of the present invention comprises a stand 105 for connecting a mobile phone, a control module for communicating with the mobile phone through the USB port and controlling the action of the servo motor, and a servo motor/motor 106 for actually generating the action.

 The smart phone base of the present embodiment has a relatively large innovation compared with the conventional mobile phone base. The main purpose is to increase the horizontal and pitch rotation support 105 controlled by the motor on the basis of the ordinary mobile phone base base 104. The bracket 105 is connected to the mobile phone 101 through the USB port 107 and the fixed buckle 108, and the mobile phone 101 can be fixed to keep the mobile phone 101 stable; the other end is connected to the base 104 and connected to the base of the mobile phone.

 As shown in FIG. 3, the bracket 105 can drive the mobile phone 101 to rotate 360 degrees in the horizontal direction or the positive and negative 45 in the vertical direction under the action of the servo motor 106. The pitch rotation. Moreover, the support 105 also has a USB port or other communication port for data communication between the mobile phone 101 and the smartphone base 102. A camera/charge selection button 109 and a work indicator 110 (not shown) can also be provided on the smartphone base 102 for user convenience.

 The smart phone base 102 has a built-in control module for receiving and processing a control signal transmitted by the mobile phone through the USB port, converting it into a driving signal of the servo motor, and outputting a vector of horizontal displacement and vertical displacement to the servo motor, thereby controlling the rotation of the servo motor, thereby The mobile phone on the bracket 105 is rotated.

 The servo motor 106 uses an electrically controlled mute motor, and the control module sends an electrical signal to control the speed and angle of rotation of the motor. The gear is connected to the gear groove of the base, the rotation of the motor drives the gear to rotate, and the gear rolls in the gear groove to drive the bracket to perform corresponding movement.

In addition, the smartphone base 102 also retains the functions of a general mobile phone base, such as charging and time. According to the functions of synchronization and video signal output, traditional practicality and more functions are guaranteed.

 The implementation of the mobile phone and the smart phone base of the embodiment of the present invention will be further described in detail below.

 The existing mobile phone supports face recognition, smile shutter, can automatically set other people's faces through the camera, and automatically focus, to maintain clear shooting and accurate positioning of the face. The processing software in the phone also locates the recognized face and keeps the face centered. The processing software in the mobile phone can be built-in integrated into the version, or it can be provided to the user through download, self-installation, and timing upgrade support models, and expand the scope and flexibility. Bundle the software with the base as a product.

 The following two concepts are set to facilitate the understanding of the following content: The area that can be captured by the entire camera is called the "imaging frame", which is used as the reference. According to the size of the face in the "imaging frame", face recognition is used. The technology automatically sets a frame according to the recognized face, indicating the position and size of the face, hereinafter referred to as "face frame". The face frame changes in real time according to the position and distance of the face, as a basis for calibration.

 The specific processing method is: when the automatic shooting function is turned on, the camera captures the human face in the imaging frame 1, and after capturing the human face, the face frame 2 is generated, and the coordinates of the center position of the face frame are calculated as the face frame position. Positioning data. Among them, the face frame will vary in size depending on the distance of the face, but it will have a central coordinate. At the same time, the coordinates of the center position of the imaging frame are fixed as the positioning data of the imaging frame. Compare the center coordinate of the face frame with the center coordinate of the imaging frame. If the face frame is not in the center of the imaging frame, the center coordinates of the two are inconsistent, indicating that there is an offset between the face frame and the imaging frame. The face frame is on the Χ, the offset on the Υ axis, as shown in Figure 4. After the calculation is completed, the correction data for the offset is generated, and sent to the control module in the base through the USB port, and the control module converts the correction data into an electrical signal for controlling the motor, thereby controlling the servo motor to rotate horizontally or vertically, as shown in FIG. As shown, the phone is rotated to maintain the face frame in the position between the imaging frames. In addition, the image capturing and calibration module in the mobile phone can directly send the calculated offset as a control signal to the control module in the base, and the control module generates a correction amount for the offset according to the offset, which is also of. The above process is real-time, automatic. If the face frame is continuously displaced, the software will continuously calculate the offset and correct it without interruption. This process is completely closed-loop, and does not require human intervention to achieve foolish operations.

At the same time, through facial recognition technology, the data in the face frame is continuously read, and after the smile is detected, Autofocus automatically captures your smile and gets a good picture of your angle and expression.

 Through the above steps, the process of smiling face recognition is reduced, and the face of the face is always in the center of the camera frame, which eliminates the trouble of manually adjusting the angle by the user.

 When multiple faces coexist, the software generates multiple face frames, calculates the relative positions of multiple face frames, and ingests all faces as much as possible. When a user does not want to appear in the camera range, just move the body quickly and let himself leave the range of the imaging frame. The software will automatically set the remaining face frames and calculate and adjust again to track the remaining users.

 Several timeout settings can also be set in the software, such as uncaptured timeouts and standby timeouts. When the camera does not capture the face for a period of time and reaches the uncaught timeout condition, the software automatically controls to adjust the camera focal length to the minimum, expand the camera range, control the base rotation, enter the search mode, scan within the maximum range, and capture the face early. . When it is not captured for a longer period of time, it enters the standby mode, and it automatically saves power. Re-use requires user activation.

 The servo motor and its control module built into the smartphone base. The servo motor can be controlled by a single-chip microcomputer, and the operation of the single-chip microcomputer is equivalent to a converter. While receiving the control signal from the mobile phone, the control signal is converted into a motor-driven electrical signal by performing calculation and conversion, thereby precisely controlling the rotation of the motor. The drive shaft of the motor has a gear and a gear groove. When the motor rotates, the drive gear moves on the gear groove, thereby rotating the mobile phone on the bracket to align with the user.

 The bracket for connecting the mobile phone on the base of the smartphone not only includes the USB interface for communication with the mobile phone, but also includes a buckle for fixing the mobile phone, which can fasten the mobile phone to prevent falling off or shaking. The stand is also designed to be replaceable to be compatible with different phones.

 The smart phone base also has the same charging interface and data interface as the general mobile phone base, as well as a video output interface, so that charging, data transmission and video output functions can be taken into account. Combine with the auto-rotation feature to develop more features.

There are two kinds of power supply for the smart phone base. One is the cable power supply, input through the USB port or DC transformer, and the other is the battery independent power supply. Therefore, the battery compartment is reserved for the base. In the case of no external power supply, the servo motor and the corresponding control module inside the base can be powered by the battery. The two automatically switch. When the external power supply is plugged in, the external power supply is automatically used. When there is no external power supply, the built-in battery is used to power the user to get rid of the harness and convenient for the user. It should be noted that the smart phone base, the related software processing method, and the camera mobile phone with related software in the embodiments of the present invention are all protected by the present invention.

 Preferably, in order to better describe the technical solution of the present invention and its implementation, FIG. 5 shows a preferred embodiment of a method for implementing the smart phone base of the present invention. In this embodiment, the smartphone base is combined with the corresponding camera phone through the bracket, and the mobile phone and the base establish communication through the USB interface. Establish control channels for mobile phones and servo motors.

 As shown in FIG. 5, the specific process of this embodiment is described as follows:

 Step S001: Connect the mobile phone to the smart phone base.

 Step S002: Press the button to activate the automatic camera function, the camera is turned on, and the user's face is captured. After the user activates the automatic camera function, the camera light is on, the front camera of the mobile phone is turned on, and the screen shot by the camera is displayed on the screen, and the software will continuously Judging from the ingested picture, there is no face.

 Step S003: The mobile phone calculates an offset between the center point of the face frame and the center point of the imaging frame, and outputs a control signal.

 When the user enters the screen, the camera captures the face data, generates a face frame, and calculates an offset from the imaging frame.

 Step S004: The servo motor control module in the base drives the motor to perform horizontal and vertical movement according to the control signal, so that the screen of the mobile phone is aligned with the user's face;

 Step S005: The face recognition and smile shutter functions are turned on in real time, and the user's face is captured while the user's face is being captured at the same time;

 Step S006: After detecting the smiling face, capture the photo in time and store the photo.

 At the same time, the functions of the intelligent base automatic rotation tracking can also realize other different applications, such as video call, music appreciation, hands-free calling, etc. The following describes some implementation functions and applications of the present invention:

 Application 1. Helper for family life:

When you are at a party or playing with a child, you need to take some pictures or videos to commemorate. If the smartphone base of the present invention is applied, it is possible to liberate one's own hands and hand the shooting task to the bottom of the smartphone. Complete the seat, concentrate on the party or play with the children, no longer need to worry about finding the angle, focus on the work, avoiding the fuss. It can even be used as a tool for remote monitoring of baby's work, sending video information in real time through 3G network, and users monitoring through another mobile phone terminal.

 Apply 2.3G video call:

 When a 3G video call is made, if the smartphone base of the present invention is applied, it is no longer necessary to manually adjust the focus and angle, and the mobile phone control smart base automatically tracks the user's face and automatically focuses on the focus. Always maintain the best focus and avatar positioning for the best video performance.

 Application 3. Hands-free calling, music playback:

 When the mobile phone hands-free call or external music and radio, as the user walks, the angle and distance of the mobile phone will change, which will make the microphone pickup effect worse or the external sound effect will be worse, affecting the effect. After the embodiment of the present invention is applied, the automatic tracking is tracked by the camera, and the microphone and the external speaker are kept perpendicular to the user, and the sound propagation path is the shortest to achieve the best sound effect.

 According to the above description, the multimedia application in different scenarios can be realized by the cooperation of the mobile phone and the smart phone base of the present invention. Simplify user operations, enhance user experience, allow users to experience more fun with less operation, and improve product quality and competitiveness. In the development of mobile terminals, different types of mobile phones can be developed. As long as the technology with face recognition and smile shutter, plus the corresponding control software and interface, the smart phone base can be used.

 Preferably, the above method can also realize the functions of instant shooting, video monitoring, etc. through the video output port on the base, and at the same time, the data connection on the base can also realize the charging of the ordinary mobile phone base, the data backup synchronization and the like. .

 From the above, the main features of the embodiments of the present invention develop a new set of mobile phone related concept products through integrated face recognition, smile shutter, servo motor closed-loop control and the like, as an accessory of the mobile phone terminal, and expand the mobile phone. Application, improve the intelligence level of mobile phones and enhance user experience.

The above is only a preferred embodiment of the present invention, and it is not intended that the specific embodiments of the present invention be limited to the description. A person skilled in the art can make some simple deductions or substitutions without departing from the inventive concept, and should be regarded as belonging to the protection scope of the present invention, such as the interface between the base and the mobile phone. , including not only the USB interface, but also various Form serial port, parallel port or wireless interface such as Bluetooth. Accordingly, the corresponding changes and modifications are intended to be included within the scope of the appended claims.

 Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. The steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module. Thus, the invention is not limited to any particular combination of hardware and software.

Industrial Applicability In summary, the main purpose of the embodiments of the present invention is to simplify the operation of the user, so that the user can simplify the work of photographing and photographing the mobile phone, and completely control the selection by the mobile phone, which facilitates the use of the customer and improves the freshness of the customer. Sense, creating a new way of entertainment.

 The software processing aspect is innovative, realizes face recognition and automatic tracking through software processing on the mobile terminal, keeps the face always in the center of the screen, to obtain the best shooting angle, and automatically calculates the person when the face moves. The offset of the face from the center of the screen, calculate the amount that needs to be corrected, and then control the servo motor in the base through the USB interface, thereby controlling the automatic follow-up rotation of the mobile phone, ensuring that the face is always at the center of the screen, thereby realizing the function of automatic tracking. Combined with the smile recognition function, when the smile appears on the face, the auto focus captures, thus ensuring that the best angle and the best expression can be taken at any time, greatly improving the product grade and user experience, and increasing the added value of the product. , increase profit.

Claims

Claim  A smart phone base, the smart phone base comprising a base, a control module, a driving module, and a bracket disposed on the base.  The bracket is configured to: fix the mobile phone on the bracket by a snap device;  The control module is configured to: send a driving signal to the driving module according to the received control signal sent by the image capturing and calibration module in the mobile phone;  The driving module is configured to: drive according to the received driving signal sent by the control module 2. The smartphone base of claim 1, wherein  The control signal includes: an offset or a correction amount of a center position coordinate of the face image captured by the mobile phone camera and a center position coordinate of the imaging frame of the mobile phone camera.  3. The smartphone base according to claim 1 or 2, wherein  The driving module includes a servo motor, and the servo motor is configured to: a rotating gear is provided with a gear and a gear groove, the servo motor rotates to drive the gear to rotate, and the gear is horizontal and/or up and down in the gear groove Movement, driving the bracket # text corresponding movement.  4. The smartphone base of claim 3, wherein  The control module is configured to: control a speed at which the drive motor rotates and an angle of rotation by converting the control signal to the drive signal.  5. The smartphone base of claim 1, wherein  The snap device includes a fixed buckle on the bracket.  6. A mobile phone, the mobile phone comprising an imaging device, the imaging device comprising: an image capture and calibration module,  The image capturing and calibration module is configured to: obtain a face image offset or a correction amount according to the image data collected by the mobile phone camera, and send a control signal according to the face image offset or the correction amount to control the The mobile phone achieves translation and/or rotation.  7. The mobile phone according to claim 6, wherein The face image offset or correction amount includes: a face image captured by a mobile phone camera The offset or correction amount of the center position coordinate from the center position coordinate of the imaging frame of the mobile phone camera. 8. The mobile phone according to claim 7, wherein  The image capturing and calibrating module is configured to: determine a face frame according to the face image captured by the mobile phone camera, and determine a center position coordinate of the face frame as a center position coordinate of the face image.  9. A method for implementing a smart phone base, comprising:  Obtaining a face image offset or correction amount according to image data collected by the mobile phone camera, and issuing a control signal to the control module;  The control module sends a driving signal to a driving module in the base of the smart phone according to the received control signal;  The driving module drives the smart phone base and the mobile phone terminal that is fastened to the smart phone base to perform translation and/or rotation according to the received driving signal sent by the control module.  10. The method of claim 9, wherein  The face image offset or correction amount includes: an offset or a correction amount of a center position coordinate of the face image captured by the mobile phone camera and a center position coordinate of the imaging frame of the mobile phone camera.