CN107422975A - The control method and control device of mobile terminal - Google Patents

Abstract

Embodiments of the present invention provide a control method and a control device for a mobile terminal. The back cover of the mobile terminal is provided with a touch panel, and the control method includes: acquiring user's fingerprint feature information, the fingerprint feature information including fingerprint top arc and/or fingerprint ridge line feature line; according to the fingerprint feature information Determine the movement direction of the finger; control the movement of the cursor according to the movement direction of the finger. In the present invention, a touch panel is arranged on the back cover of the mobile terminal, and the finger on the back side of the mobile terminal is used to perform a touch operation on the touch panel, and the fingerprint recognition technology is used to control the direction of the cursor, so that the mobile terminal with a large screen can be single-handed. Full-screen control with ease, and the control method is convenient and reliable, and has a wide range of application prospects.

Description

Control method and control device for mobile terminal

technical field

The present invention relates to the technical field of mobile terminals, in particular to a control method and a control device for a mobile terminal.

Background technique

With the rapid development of mobile communication technology, mobile terminals (such as smart phones) have become very popular in people's daily life. Functions have gradually become important functions of mobile terminals. Currently, 80% of new models have screens larger than 4.5 inches, and it is expected that the mainstream configuration will be stable between 5 and 5.5 inches in the next few years.

However, as the screen of the mobile terminal increases, it is difficult to touch the peripheral area of the screen by holding the mobile terminal with one hand and controlling it with the thumb, and it is impossible to realize full-screen control of the mobile terminal with one hand. Figure 1 is a schematic diagram of the thumb touch range of an existing 5.5-inch screen model. When holding a mobile terminal with one hand, the touchable area of the thumb is only shown by the dotted line area, and full-screen touch cannot be realized. Since the touch screen is the only way to realize human-computer interaction, how to realize full-screen control with one hand when using a large-screen mobile terminal has become an urgent problem to be solved.

Contents of the invention

The technical problem to be solved by the embodiments of the present invention is to provide a control method and a control device for a mobile terminal, so as to solve the problem that the existing mobile terminal cannot realize full-screen control with one hand.

In order to solve the above technical problems, an embodiment of the present invention provides a control method of a mobile terminal, a touch panel is provided on the back cover of the mobile terminal, and the control method includes:

Acquiring the user's fingerprint feature information, the fingerprint feature information includes the top arc of the fingerprint and/or the feature line of the fingerprint ridge line;

Determine the finger movement direction according to the fingerprint feature information;

Cursor movement is controlled according to the finger movement direction.

Optionally, said acquiring the user's fingerprint feature information includes:

Continuously collect multiple fingerprint images of the user's fingers according to the preset frequency;

The plurality of fingerprint images are processed, and the fingerprint top arc and/or fingerprint ridge feature line of each fingerprint image are respectively extracted.

Optionally, the determining the finger movement direction according to the fingerprint feature information includes:

Determine the highest point of the top arc of each fingerprint; obtain the coordinates of each highest point; compare the coordinates of multiple highest points to determine the direction of finger movement; or

Determine the center point of each fingerprint ridge feature line; obtain the coordinates of each center point; compare the coordinates of multiple center points to determine the movement direction of the finger; or

Determine the highest point of each fingerprint top arc and the center point of each fingerprint ridge line feature line; obtain the coordinates of each highest point and center point; compare the coordinates of multiple highest points and center points to determine the movement direction of the finger.

Optionally, the controlling the movement of the cursor according to the finger movement direction includes: controlling the cursor to move in the same movement direction according to the finger movement direction.

Optionally, also include:

Collect the fingerprint image of the user's finger; process the fingerprint image, generate and store the target fingerprint information;

When an object is in the area of the touch panel, the fingerprint information of the object is collected, and by comparing the collected fingerprint information with the stored target fingerprint information, it is confirmed whether the object currently in the area of the touch panel is the user's finger.

Optionally, the method further includes: performing a corresponding operation according to an action command of the user's finger; the action command includes single click, double click, single click and drag.

In order to solve the above technical problems, an embodiment of the present invention also provides a control device for a mobile terminal. A touch panel is provided on the back cover of the mobile terminal, and the control device includes:

An acquisition module, configured to acquire fingerprint feature information of the user, the fingerprint feature information including the top arc of the fingerprint and/or the feature line of the fingerprint ridge;

A determining module, configured to determine the finger movement direction according to the fingerprint feature information;

A control module, configured to control the movement of the cursor according to the finger movement direction.

Optionally, the acquisition module includes an acquisition unit and an image processing unit, wherein,

An acquisition unit, configured to continuously acquire multiple fingerprint images of the user's fingers according to a preset frequency;

The image processing unit is used to process multiple fingerprint images, and extract the fingerprint top arc and/or fingerprint ridge feature line of each fingerprint image respectively.

Optionally, the determination module includes a determination unit, a coordinate unit and a comparison unit, wherein,

A determination unit is used to determine the highest point of each fingerprint top arc;

Coordinate unit, used to obtain the coordinates of each highest point;

The comparison unit is used to compare the coordinates of multiple highest points to determine the movement direction of the finger;

or

A determination unit is used to determine the center point of each fingerprint ridge line feature line;

a coordinate acquisition unit, configured to acquire the coordinates of each central point;

The comparison unit is used to compare the coordinates of multiple center points to determine the movement direction of the finger;

or

A determination unit is used to determine the highest point of each fingerprint top arc and the center point of each fingerprint ridge line feature line;

A coordinate acquisition unit, configured to acquire the coordinates of each highest point and each central point;

The comparison unit is used to compare the coordinates of multiple highest points and center points to determine the moving direction of the finger.

Optionally, also include:

The execution module is used to perform corresponding operations according to the action instructions of the user's fingers; the action instructions include single click, double click, single click and drag.

Embodiments of the present invention provide a control method and a control device for a mobile terminal. By setting a touch panel on the back cover of the mobile terminal, a finger on the back side of the mobile terminal is used to perform a touch operation on the touch panel, and fingerprint identification is adopted. Cursor direction control by the technology realizes full-screen control with one hand freely when using a large-screen mobile terminal, and the control method is convenient and reliable, and has a wide application prospect.

Of course, implementing any product or method of the present invention does not necessarily need to achieve all the above-mentioned advantages at the same time. Additional features and advantages of the invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention. The objectives and other advantages of the embodiments of the present invention can be realized and obtained by the structures particularly pointed out in the description, claims and accompanying drawings.

Description of drawings

The accompanying drawings are used to provide a further understanding of the technical solution of the present invention, and constitute a part of the description, and are used together with the embodiments of the application to explain the technical solution of the present invention, and do not constitute a limitation to the technical solution of the present invention. The shapes and sizes of the components in the drawings do not reflect the real scale, but are only intended to schematically illustrate the content of the present invention.

Figure 1 is a schematic diagram of the thumb touch range of the existing 5.5-inch screen model;

FIG. 2 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention;

FIG. 3 is a side view of a mobile terminal according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of the touchable range of the index finger of the mobile terminal according to the embodiment of the present invention;

Fig. 5 is a schematic diagram of index finger movement according to an embodiment of the present invention;

Fig. 6 is a schematic diagram of index finger click according to the embodiment of the present invention;

Fig. 7 is a schematic diagram of clicking and dragging the index finger according to the embodiment of the present invention;

Fig. 8 is a schematic diagram of double-clicking with the index finger according to the embodiment of the present invention;

Fig. 9 is a schematic diagram of a long press with the index finger according to the embodiment of the present invention;

FIG. 10 is a flowchart of a control method of a mobile terminal according to an embodiment of the present invention;

Fig. 11 is a schematic diagram of the top arc of the fingerprint according to the embodiment of the present invention;

Fig. 12 is a schematic diagram of the arc-shaped upward movement of the top of the fingerprint according to the embodiment of the present invention;

Fig. 13 is a schematic diagram of the arc-shaped downward movement of the top of the fingerprint according to the embodiment of the present invention;

14 is a schematic diagram of a fingerprint ridge line feature line according to an embodiment of the present invention;

Fig. 15 is a schematic diagram of the upward movement of the fingerprint ridge feature line according to the embodiment of the present invention;

Fig. 16 is a schematic diagram of the downward movement of the fingerprint ridge feature line according to the embodiment of the present invention;

FIG. 17 is a schematic structural diagram of a control device of a mobile terminal according to an embodiment of the present invention.

detailed description

The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

FIG. 2 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention, and FIG. 3 is a side view of a mobile terminal according to an embodiment of the present invention. As shown in Figures 2 and 3, the mobile terminal provided by the embodiment of the present invention includes a front case and a rear cover 10, the front case is provided with a display panel, the rear cover 10 is provided with a touch panel 20, and the rear cover 20 is fastened to the front The case forms a complete mobile terminal. When the user uses the mobile terminal, the display panel on the front cover is used to display the information processed by the mobile terminal, and the touch panel 20 on the back cover 10 is used to perform touch operations with fingers. Specifically, when the mobile terminal is held with one hand, the cursor on the display panel of the mobile terminal is manipulated by executing actions such as moving, clicking, and double-clicking on the touch panel with a finger on the back cover of the mobile terminal.

It can be understood that the mobile terminals described in the embodiments of the present invention may include mobile phones, smart phones, notebook computers, digital broadcast receivers, personal digital assistants PDA, tablet computers PAP, portable multimedia players PMP, navigation devices and electronic book reader etc. The main structure of the mobile terminal may adopt an existing structure, for example, the front case and the rear cover are detachably connected, and the detachment method may be bolt connection, buckle connection and the like. There are many ways in which the touch panel is arranged on the back cover. For example, a touch hole can be provided on the back cover, and the touch panel is arranged in the touch hole and fixed on the back cover through a connecting device, so that the surface of the touch panel is flush with the surface of the back cover. As another example, the touch panel can be embedded in the substrate of the back cover, so that the surfaces of the back cover and the touch panel are on the same plane.

FIG. 4 is a schematic diagram of a touchable range of a mobile terminal index finger according to an embodiment of the present invention. The position of the touch panel on the back cover of the mobile terminal is set according to the area where fingers can freely operate when holding the mobile terminal with one hand. For the touch operation with the index finger, the touch panel 20 can be arranged at the upper middle of the back cover 10 , and the index finger can freely operate on the area of the touch panel 20 , as shown in FIG. 4 . In actual implementation, the mobile terminal may also adopt other finger touch schemes, such as the middle finger, in which case the touch panel may be set at a position where the middle finger can freely manipulate. The shape of the touch panel can be square, rectangular, circular, oval or other shapes.

In actual implementation, the display panel on the front shell can use a display screen with touch function, and the display screen with touch function is used as the first touch unit of the mobile terminal, and is used as the output device and the first input device of the mobile terminal. At this time, the touch panel on the back cover is used as the second touch unit of the mobile terminal, and is used as the second input device of the mobile terminal. It can be understood that the first touch unit and the second touch unit can work simultaneously, and the user can touch the first touch unit with the thumb and touch the second touch unit with the index finger, and the effect is equivalent to multi-touch.

FIG. 5 to FIG. 9 are schematic diagrams of the operation of the mobile terminal according to the embodiment of the present invention. The mobile terminal is held by the right hand and the index finger of the right hand is used as an example for touch operation. When the index finger touches the touch panel of the back cover, a cursor will appear at the corresponding position on the display panel of the front shell of the mobile terminal, and the action instructions of the index finger include but are not limited to various actions such as moving, clicking, double-clicking, and clicking and dragging.

Movement: When the index finger moves on the touch panel, the cursor on the display panel moves simultaneously, as shown in Figure 5.

Click: When the cursor on the display panel moves to the corresponding icon, the index finger clicks on the touch panel, as shown in Figure 6.

Click and drag: When the cursor on the display panel is on the corresponding icon, the index finger moves after clicking on the touch panel, as shown in Figure 7.

Double-click: When the cursor on the display panel is on the corresponding icon, double-click with the index finger on the touch panel, as shown in Figure 8.

Long press: when the cursor on the display panel is on the corresponding icon, keep pressing the index finger on the touch panel, as shown in Figure 9.

The above-mentioned actions in the embodiment of the present invention are equivalent to the existing actions on the front screen, such as selecting an icon, dragging an icon, long pressing an icon, and the like.

FIG. 10 is a flowchart of a control method of a mobile terminal according to an embodiment of the present invention. As shown in Figure 10, the control method of the mobile terminal includes:

Step 10, obtaining the fingerprint feature information of the user;

Step 20, determining the finger movement direction according to the fingerprint feature information;

Step 30. Control the movement of the cursor according to the finger movement direction.

The contact type of the front touch operation of the existing mobile terminal is mostly intermittent point contact. When the user holds the mobile terminal with one hand, the contact type of the index finger on the back cover of the mobile terminal is continuous surface contact. The range of contact is the entire index finger or the front of the index finger. The embodiment of the present invention considers that the mobile operation of the index finger on the back cover of the mobile terminal is different from the frontal mobile operation of the existing mobile terminal, and therefore proposes a technical solution for controlling the direction of the cursor using fingerprint recognition technology, by obtaining the fingerprint feature information of the user's finger , and then determine the finger movement direction according to the fingerprint feature information, and finally control the cursor movement, and realize the application of the fingerprint recognition function to the touch operation of the mobile terminal, which not only improves the utilization rate of the fingerprint recognition function, but also improves the accuracy of the touch operation sex.

Wherein, the fingerprint feature information in the embodiment of the present invention may be the top arc of the fingerprint, or the feature line of the fingerprint ridge line, or the top arc of the fingerprint and the feature line of the fingerprint ridge line, or the top arc of the fingerprint and/or the fingerprint ridge line The characteristic line is used to determine the movement direction of the user's finger, and provides the necessary guarantee for realizing the control of the cursor direction.

In the above technical solution, optionally, before step 10, it may include: collecting a fingerprint image of the user's finger; processing the fingerprint image to generate and store target fingerprint information. Wherein, the target fingerprint information includes the top arc of the fingerprint and/or the characteristic line of the ridge of the fingerprint.

In the above technical solution, optionally, before step 10, it may include: detecting whether the display panel of the mobile terminal is currently in a lighted state; Determine the direction of finger movement, etc. That is to say, if the display panel of the mobile terminal is not turned on, it means that the mobile terminal is in a dormant state at this time, and no touch operation is required. Understandably, a switch for turning on or off the touch panel may also be set to avoid misoperation and save power.

In the above technical solution, optionally, before step 10, it may include: when an object is in the area of the touch panel, collect the fingerprint information of the object, and compare the collected fingerprint information with the stored target fingerprint information to confirm Whether the object currently within the touch panel area is the user's finger. The function of the processing in this embodiment is to avoid misoperation when the touch panel is pressed by other objects. Generally, there are three basic patterns of fingerprints: ring, bow and spiral. In the process of fingerprint recognition, the embodiment of the present invention uses overall features and local features to compare and verify fingerprints. When multiple feature points overlap, that is Can be confirmed as the same fingerprint.

In the above technical solution, optionally, after step 30, it may include: performing a corresponding operation according to an action instruction of the user's finger. Wherein, the action command of the finger includes but not limited to click, click and drag, double click, long press, etc., and the corresponding operation includes but not limited to selecting an icon, dragging an icon, and long pressing an icon.

In the above technical solution, obtaining the fingerprint feature information of the user in step 10 may include:

Step 11, continuously collecting multiple fingerprint images of the user's fingers according to the preset frequency;

Step 12: Process multiple fingerprint images, and extract the fingerprint top arc and/or fingerprint ridge feature line of each fingerprint image respectively.

Wherein, the preset frequency refers to the time interval for collecting fingerprints, and the preset frequency can be set according to user needs. For example, the preset frequency can be set as the frequency of collecting five finger prints in one second.

In one embodiment, step 20, determining the finger movement direction according to the fingerprint feature information may include:

Step 211, determine the highest point of each fingerprint top arc;

Step 212, obtaining the coordinates of each highest point;

Step 213, comparing the coordinates of multiple highest points to determine the moving direction of the finger.

In actual implementation, two-dimensional rectangular coordinates (X, Y) can be established for the touch panel, so that each highest point has a corresponding coordinate (Xa, Ya), and the coordinates of multiple highest points can be compared to determine the coordinates of multiple highest points. Trend. When the abscissa Xa of the highest point changes little and the ordinate Ya gradually increases, it is judged that the finger is moving upward. When the abscissa Xa of the highest point changes little and the ordinate Ya gradually becomes smaller, it is judged that the finger is moving downward. When the ordinate Ya of the highest point changes little and the abscissa Xa gradually becomes smaller, it is judged that the finger is moving to the left. When the ordinate Ya of the highest point changes little and the abscissa Xa gradually increases, it is judged that the finger is moving to the right. Also, this method can determine the diagonal movement of the finger.

In another embodiment, step 20, determining the finger movement direction according to the fingerprint feature information may also include:

Step 221, determine the center point of each fingerprint ridge feature line;

Step 222, obtaining the coordinates of each center point;

Step 223, comparing the coordinates of multiple center points to determine the moving direction of the finger.

In actual implementation, two-dimensional rectangular coordinates (X, Y) can be established for the touch panel, so that each center point has a corresponding coordinate (Xb, Yb), and the coordinates of multiple center points can be compared to determine the location of multiple center points. Trend. When the abscissa Xb of the central point changes little and the ordinate Yb gradually increases, it is determined that the finger is moving upward. When the abscissa Xb of the central point changes little and the ordinate Yb gradually becomes smaller, it is determined that the finger is moving downward. When the ordinate Yb of the central point changes little and the abscissa Xb gradually becomes smaller, it is determined that the finger is moving to the left. When the ordinate Yb of the central point changes little and the abscissa Xb gradually increases, it is determined that the finger is moving to the right. Also, this method can determine the diagonal movement of the finger.

In yet another embodiment, step 20, determining the finger movement direction according to the fingerprint feature information may also include:

Step 231, determine the highest point of each fingerprint top arc and the center point of each fingerprint ridge line feature line;

Step 232, obtaining the coordinates of each highest point and center point;

Step 233, comparing the coordinates of multiple highest points and the center point to determine the moving direction of the finger.

In actual implementation, two-dimensional Cartesian coordinates (X, Y) can be established for the touch panel, so that each highest point has corresponding coordinates (Xa, Ya), and each center point has corresponding coordinates (Xb, Yb). According to the coordinates of the highest point and the center point, the change trend of multiple highest points can be judged. The judgment method is the same as that mentioned above, and will not be repeated here.

In the above technical solution, controlling the movement of the cursor according to the finger movement direction in step 30 may include: controlling the cursor to move in the same movement direction according to the finger movement direction.

That is, if it is judged that the finger is moving upward, the control cursor is also moved upward. If it is judged that the finger is moving downward, the control cursor is also moved downward. If it is judged that the finger is moving to the left, the control cursor is also moved to the left. If it is judged that the finger is moving to the right, the control cursor is also moved to the right.

In the control method of the mobile terminal provided by the embodiment of the present invention, when the finger moves on the touch panel, by acquiring the fingerprint feature information of the user's finger, determining the finger movement direction according to the fingerprint feature information, and finally controlling the movement of the cursor, realizing the one-handed Full-screen control, and the operation process is simple and reliable, which improves the user experience.

The embodiments of the present invention will be described in detail below with reference to FIG. 11 to FIG. 16 .

Fig. 11 is a schematic diagram of a top arc of a fingerprint according to an embodiment of the present invention. As shown in FIG. 11 , when the user's finger touches the touch panel, the touch panel collects the fingerprint image 30 of the user's finger, and the fingerprint top arc 40 of the fingerprint image 30 can be obtained through image processing. By extracting and processing the top arc 40 of the fingerprint, the highest point A of the top arc 40 of the fingerprint can be determined. Judging the direction of finger movement through the highest point A includes: obtaining the coordinates (Xa, Ya) of the highest point A. When the user's finger moves, the coordinates of the highest point A will also change. By comparing the coordinates of multiple highest points A, the finger can be judged. The direction of movement is "Up", "Down", "Left", or "Right".

FIG. 12 is a schematic diagram of the arc-shaped upward movement of the top of the fingerprint according to the embodiment of the present invention, and FIG. 13 is a schematic diagram of the downward arc-shaped movement of the top of the fingerprint according to the embodiment of the present invention. When the highest point of the top arc of the fingerprint moves upwards, it is judged that the direction of finger movement is "upward", and then the direction of movement of the cursor on the display panel is also "upward", as shown in Figure 12. When the highest point of the arc at the top of the fingerprint moves downward, it is judged that the direction of finger movement is "downward", and the direction of movement of the cursor on the display panel is also "downward", as shown in Figure 13. The processing of "leftward" or "rightward" is the same as the above-mentioned processing method, and will not be repeated here.

FIG. 14 is a schematic diagram of a fingerprint ridge feature line according to an embodiment of the present invention. As shown in Figure 14, considering that when the user’s finger touches the touch panel, the posture of the finger may change, sometimes it is a vertical posture, sometimes it is an oblique posture, so the arc of the top of the fingerprint will change accordingly, which will affect the direction judgment. accuracy. For this reason, the embodiment of the present invention proposes a solution of using the fingerprint ridge feature line to judge the direction. When the user's finger touches and presses the touch panel, the touch panel collects a fingerprint image 30 of the user's finger, and through image processing, multiple ridge feature points B of the user's fingerprint can be obtained. By extracting the fingerprint ridge feature points B, a curve is fitted based on these ridge feature points B to form the fingerprint ridge feature line 50 . Judging the finger movement direction by the fingerprint ridge line feature line 50 includes: obtaining the coordinates (Xb, Yb) of the center point of the fingerprint ridge line feature line 50, when the user's finger moves, the coordinates of the center point will also change, comparing multiple center points The coordinates of the finger can be judged as "up", "down", "left" or "right". Wherein, the number and position of the multiple ridge line feature points B of the acquired user fingerprint are preset, the number can be 3-5, and the position can be the ridge line in the middle area of the fingerprint.

Fig. 15 is a schematic diagram of the upward movement of the fingerprint ridge characteristic line according to the embodiment of the present invention, and Fig. 16 is a schematic diagram of the downward movement of the fingerprint ridge characteristic line according to the embodiment of the present invention. When the center point of the feature line of the fingerprint ridge line moves upward, it is judged that the moving direction of the finger is "upward", and then the moving direction of the cursor on the display panel is also "upward", as shown in FIG. 15 . When the center point of the fingerprint ridge line feature line moves downward, it is judged that the finger movement direction is "downward", and then the movement direction of the cursor on the display panel is also "downward", as shown in FIG. 16 . The processing of "leftward" or "rightward" is the same as the above-mentioned processing method, and will not be repeated here.

FIG. 17 is a schematic structural diagram of a control device of a mobile terminal according to an embodiment of the present invention. As shown in Figure 17, the control device of the mobile terminal includes:

An acquisition module, configured to acquire the fingerprint feature information of the user;

A determination module, connected to the acquisition module, used to determine the finger movement direction according to the fingerprint feature information;

The control module is connected with the determination module, and is used to control the movement of the cursor according to the finger movement direction.

Wherein, the fingerprint feature information in the embodiment of the present invention may be the top arc of the fingerprint, or the feature line of the fingerprint ridge line, or the top arc of the fingerprint and the feature line of the fingerprint ridge line, or the top arc of the fingerprint and/or the fingerprint ridge line The characteristic line is used to determine the movement direction of the user's finger, and provides the necessary guarantee for realizing the control of the cursor direction.

In this embodiment, the control device of the mobile terminal may include:

The storage module is connected with the acquisition module and is used for storing the target fingerprint information of the user's finger. Wherein, the target fingerprint information is generated by collecting the fingerprint image of the user's finger and processing the fingerprint image. The target fingerprint information includes fingerprint top arcs and/or fingerprint ridge feature lines.

In this embodiment, the control device of the mobile terminal may include:

The startup module is connected with the acquisition module, and is used to detect whether the display panel of the mobile terminal is currently in a lighted state, and if the display panel of the mobile terminal is currently in a lighted state, then perform processing such as obtaining the user's fingerprint feature information and determining the direction of finger movement .

In this embodiment, the control device of the mobile terminal may include:

The judgment module is connected with the acquisition module, and is used for comparing the collected fingerprint information with the stored target fingerprint information, and confirming whether the object currently in the touch panel area is the user's finger.

In this embodiment, the control device of the mobile terminal may include:

The execution module is configured to perform corresponding operations according to the motion instructions of the user's fingers. Wherein, the action command of the finger includes but not limited to click, click and drag, double click, long press, etc., and the corresponding operation includes but not limited to selecting an icon, dragging an icon, and long pressing an icon.

In this embodiment, the acquisition module includes an acquisition unit and an image processing unit, wherein,

An acquisition unit, configured to continuously acquire multiple fingerprint images of the user's fingers according to a preset frequency;

The image processing unit is used to process multiple fingerprint images, and extract the fingerprint top arc and/or fingerprint ridge feature line of each fingerprint image respectively.

Wherein, the preset frequency refers to the time interval for collecting fingerprints, and the preset frequency can be set according to user needs. For example, the preset frequency can be set as the frequency of collecting five finger prints in one second.

In this embodiment, the determination module includes a determination unit, a coordinate unit and a comparison unit.

In one embodiment,

A determination unit is used to determine the highest point of each fingerprint top arc;

Coordinate unit, used to obtain the coordinates of each highest point;

The comparing unit is used for comparing the coordinates of multiple highest points to determine the moving direction of the finger.

In another embodiment,

A determination unit is used to determine the center point of each fingerprint ridge line feature line;

a coordinate acquisition unit, configured to acquire the coordinates of each central point;

The comparing unit is used for comparing the coordinates of multiple center points to determine the moving direction of the finger.

In yet another embodiment,

A determination unit is used to determine the highest point of each fingerprint top arc and the center point of each fingerprint ridge line feature line;

A coordinate acquisition unit, configured to acquire the coordinates of each highest point and each central point;

The comparison unit is used to compare the coordinates of multiple highest points and center points to determine the moving direction of the finger.

In this embodiment, the control module is specifically configured to control the cursor to move in the same moving direction according to the moving direction of the finger.

The control device of the mobile terminal provided by the embodiment of the present invention, when the finger moves on the touch panel, obtains the fingerprint characteristic information of the user's finger, determines the finger movement direction according to the fingerprint characteristic information, and finally controls the movement of the cursor, realizing the one-handed Full-screen control, and the operation process is simple and reliable, which improves the user experience.

In the description of the embodiments of the present invention, it should be understood that the terms "middle", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom" The orientation or positional relationship indicated by "inner", "outer" and so on is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must be Having a particular orientation, being constructed and operating in a particular orientation, and therefore not to be construed as limiting the invention.

In the description of the embodiments of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a A detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediary, and it may be an internal communication between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

Those skilled in the art should understand that the embodiments of the present invention may be provided as methods, systems, or computer program products. Accordingly, the present invention can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, optical storage, etc.) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus and computer program products according to embodiments of the invention. It should be understood that each process and/or block in the flowchart and/or block diagrams, and a combination of processes and/or blocks in the flowchart and/or block diagrams can be requested by a computer program. These computer program requests may be provided to a general-purpose computer, special-purpose computer, embedded processor, or processor of other programmable information processing equipment to produce a machine so that the request performed by the processor of the computer or other programmable information processing equipment produces a An apparatus for realizing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program requests may also be stored in a computer-readable memory capable of directing a computer or other programmable information processing device to operate in a specific manner, such that the requests stored in the computer-readable memory produce an article of manufacture comprising requesting means, the request The device realizes the function specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program requests can also be loaded onto a computer or other programmable information processing device, so that a series of operational steps are performed on the computer or other programmable device to produce a computer-implemented process, whereby the process performed on the computer or other programmable device It is requested to provide steps for realizing the function specified in one or more procedures of the flow chart and/or one or more blocks of the block diagram.

Although the embodiments disclosed in the present invention are as above, the described content is only an embodiment adopted for understanding the present invention, and is not intended to limit the present invention. Anyone skilled in the field of the present invention can make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed by the present invention, but the patent protection scope of the present invention must still be The scope defined by the appended claims shall prevail.

Claims (10)

1. A control method for a mobile terminal, characterized in that a touch panel is provided on the back cover of the mobile terminal, and the control method comprises: Acquiring the user's fingerprint feature information, the fingerprint feature information includes the top arc of the fingerprint and/or the feature line of the fingerprint ridge line; Determine the finger movement direction according to the fingerprint feature information; Cursor movement is controlled according to the finger movement direction. 2. The control method according to claim 1, wherein said acquiring the user's fingerprint feature information comprises: Continuously collect multiple fingerprint images of the user's fingers according to the preset frequency; The plurality of fingerprint images are processed, and the fingerprint top arc and/or fingerprint ridge feature line of each fingerprint image are respectively extracted. 3. The control method according to claim 1, wherein said determining the finger movement direction according to said fingerprint feature information comprises: Determine the highest point of the top arc of each fingerprint; obtain the coordinates of each highest point; compare the coordinates of multiple highest points to determine the direction of finger movement; or Determine the center point of each fingerprint ridge feature line; obtain the coordinates of each center point; compare the coordinates of multiple center points to determine the movement direction of the finger; or Determine the highest point of each fingerprint top arc and the center point of each fingerprint ridge line feature line; obtain the coordinates of each highest point and center point; compare the coordinates of multiple highest points and center points to determine the movement direction of the finger. 4. The control method according to claim 1, wherein the controlling the movement of the cursor according to the movement direction of the finger comprises: controlling the movement of the cursor to the same movement direction according to the movement direction of the finger. 5. The control method according to claim 1, further comprising: Collect the fingerprint image of the user's finger; process the fingerprint image, generate and store the target fingerprint information; When an object is in the area of the touch panel, the fingerprint information of the object is collected, and by comparing the collected fingerprint information with the stored target fingerprint information, it is confirmed whether the object currently in the area of the touch panel is the user's finger. 6. The control method according to claim 1, further comprising: According to the action command of the user's finger, the corresponding operation is performed; the action command includes single click, double click, single click and drag. 7. A control device for a mobile terminal, characterized in that a touch panel is provided on the back cover of the mobile terminal, and the control device includes: An acquisition module, configured to acquire fingerprint feature information of the user, the fingerprint feature information including the top arc of the fingerprint and/or the feature line of the fingerprint ridge; A determining module, configured to determine the finger movement direction according to the fingerprint feature information; A control module, configured to control the movement of the cursor according to the finger movement direction. 8. The control device according to claim 7, wherein the acquisition module comprises an acquisition unit and an image processing unit, wherein, An acquisition unit, configured to continuously acquire multiple fingerprint images of the user's fingers according to a preset frequency; The image processing unit is used to process multiple fingerprint images, and extract the fingerprint top arc and/or fingerprint ridge feature line of each fingerprint image respectively. 9. The control device according to claim 7, wherein the determination module comprises a determination unit, a coordinate unit and a comparison unit, wherein, A determination unit is used to determine the highest point of each fingerprint top arc; Coordinate unit, used to obtain the coordinates of each highest point; The comparison unit is used to compare the coordinates of multiple highest points to determine the movement direction of the finger; or A determination unit is used to determine the center point of each fingerprint ridge line feature line; a coordinate acquisition unit, configured to acquire the coordinates of each central point; The comparison unit is used to compare the coordinates of multiple center points to determine the movement direction of the finger; or A determination unit is used to determine the highest point of each fingerprint top arc and the center point of each fingerprint ridge line feature line; A coordinate acquisition unit, configured to acquire the coordinates of each highest point and each central point; The comparison unit is used to compare the coordinates of multiple highest points and center points to determine the moving direction of the finger. 10. The control device according to claim 7, further comprising: The execution module is used to perform corresponding operations according to the action instructions of the user's fingers; the action instructions include single click, double click, single click and drag.