CN104461365A - Terminal touch method and device - Google Patents

Abstract

The present application discloses a terminal touch control method and device. A specific implementation of the touch control method of the terminal includes: receiving the myoelectric signal sent by the wearable device, and simultaneously obtaining the touch signal through the touch screen; determining the touching finger for the touch action according to the myoelectric signal; determining the touching finger according to the touch signal The touch position; based on the touch position, perform the operation action corresponding to the touching finger. This embodiment realizes the purpose that the terminal performs different operations according to different touching fingers, and improves the touch efficiency of the terminal.

Description

Terminal touch method and device

technical field

The present application relates to the field of terminal technology, in particular to the field of terminal control, and in particular to a terminal touch control method and device.

Background technique

With the continuous development of terminal technology, the touch screen has become the mainstream screen for various terminal configurations. Touching a terminal through a touch screen has also become one of the most important human-computer interaction methods. In the prior art, people can usually only achieve basic functions such as selecting or running by clicking with their fingers, and when more advanced functions such as deleting or displaying attributes are to be performed, other function keys, such as the home key assistance can be realized.

Contents of the invention

The present application provides a terminal touch control method and device.

In the first aspect, the present application provides a touch control method for a terminal. The method includes: receiving a myoelectric signal sent by a wearable device, and acquiring a touch signal through a touch screen at the same time; a finger; determining a touch position of the touching finger according to the touch signal; and performing an operation action corresponding to the touching finger based on the touch position.

In some implementation manners, the method further includes: setting a corresponding operation action for the touching finger.

In some implementations, the operation actions include: popping up a context menu, selecting, running, deleting, creating a new folder, returning to the main interface or returning to the previous step.

In some implementations, the setting the corresponding operation action for the touching finger includes: setting the operation action corresponding to the middle finger or the ring finger as a pop-up context menu.

In some implementations, the performing an operation corresponding to the touching finger based on the touching position includes: determining an operation object according to the touching position; performing an operation corresponding to the touching finger on the operating object .

In some implementations, the setting a corresponding operation action for the touching finger includes: setting a corresponding operation action for the touching finger according to an operation object.

In some implementations, the performing the operation action corresponding to the touch finger based on the touch position includes: determining an operation object according to the touch position; determining an operation action corresponding to the touch finger according to the operation object ; Execute the operation action on the operation object.

In some implementations, the determining the touching finger performing the touching action according to the myoelectric signal includes: extracting characteristic parameters of the electromyographic signal; and determining the touching finger performing the touching action according to the characteristic parameters.

In some implementations, the determining the touching finger according to the characteristic parameters includes: comparing the characteristic parameters with the model parameters in the training model; if the similarity is greater than a preset threshold , the finger corresponding to the model parameter is determined as the touching finger performing the touch action.

In a second aspect, the present application provides a touch control device for a terminal, which includes: a signal acquisition module, configured to receive an electromyographic signal sent by a wearable device, and acquire a touch signal through a touch screen at the same time; a finger determination module, configured to Determine the touching finger performing a touch action according to the myoelectric signal; a position determination module, configured to determine a touch position of the touching finger according to the touch signal; an operation execution module, configured to perform the same operation with the touch position based on the touch position The operation action corresponding to the touch finger.

In some embodiments, the device further includes: an operation setting module, configured to set a corresponding operation action for the touching finger.

In some implementations, the operation actions include: popping up a context menu, selecting, running, deleting, creating a new folder, returning to the main interface or returning to the previous step.

In some implementations, the operation setting module includes: a menu setting unit, configured to set the operation action corresponding to the middle finger or the ring finger as a pop-up context menu.

In some implementations, the operation execution module includes: an object determination unit configured to determine an operation object according to the touch position; an operation execution unit configured to perform an operation action corresponding to the touching finger on the operation object .

In some implementations, the operation setting module includes: an object setting unit, configured to set a corresponding operation action for the touching finger according to an operation object.

In some implementations, the operation execution module includes: an object determination unit, configured to determine an operation object according to the touch position; an operation determination unit, configured to determine an operation action corresponding to the touching finger according to the operation object; An execution unit, configured to execute the operation action on the operation object.

In some implementations, the finger determination module includes: an extraction unit, configured to extract characteristic parameters of the myoelectric signal; a determination unit, configured to determine a touching finger performing a touch action according to the characteristic parameters.

In some embodiments, the determination unit includes: a comparison subunit, configured to compare the similarity between the characteristic parameters and the model parameters in the training model; a determination subunit, configured to compare the similarity with the model parameters in the training model; When the threshold is set, the finger corresponding to the model parameter is determined as the touching finger performing the touch action.

The terminal touch method provided by this application can receive the myoelectric signal sent by the wearable device, and at the same time obtain the touch signal through the touch screen of the terminal, and then respectively determine the touching finger and its touch through the myoelectric signal and the touch signal. location, so that the operation action corresponding to the touching finger can be performed at the touching location. By performing different touch operations in response to different touching fingers, the types of touch operations can be enriched, and the touch efficiency of the terminal can be improved.

Description of drawings

Other characteristics, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

FIG. 1 is a flowchart of an embodiment of a touch method of a terminal of the present application;

FIG. 2 is a flow chart of another embodiment of the touch method of the terminal of the present application;

FIG. 3 is a schematic structural diagram of an embodiment of a touch device of a terminal of the present application.

Detailed ways

The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for the convenience of description, only the parts related to the related invention are shown in the drawings.

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 with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

Please refer to FIG. 1 , which shows a process 100 of an embodiment of a terminal touch control method. This embodiment is mainly illustrated by using this method in a terminal with a touch screen. The terminal may include, but is not limited to, a smart phone, a tablet computer, an e-book reader, an MP3 player (Moving Picture Experts Group Audio Layer III, a dynamic image Expert compression standard audio layer 3), MP4 (Moving Picture Experts Group Audio Layer IV, moving picture expert compression standard audio layer 4) player, laptop computer, etc. The touch method of the terminal includes the following steps:

As shown in FIG. 1 , in step 101, a myoelectric signal sent by a wearable device is received, and a touch signal is acquired through a touch screen at the same time.

In this embodiment, the myoelectric signal refers to the weak electrical signal gathered on the surface of the skin generated by the contraction and contraction of the muscles of the user when performing body movements. The wearable device can be configured with a surface electromyography sensor and worn by the user on the surface of the skin to detect the electromyography signal generated by the user when he or she moves. In this embodiment, the wearable device may include but not limited to a device worn on the hand such as a smart watch or a smart bracelet, so as to monitor the movement of the user's hand. Specifically, when the wearable device obtains the myoelectric signal, it may first collect the electric signal during normal muscle movement through a filter, such as the electric signal between 20 Hz and 400 Hz. Then, by moving the window method and the threshold screening method, the collected electrical signals are extracted to obtain effective muscle electrical signals. Then the effective myoelectric signal is sent to the terminal through various wired or wireless connections. In this embodiment, the wireless connection may include but not limited to 3G connection, WiFi connection, Bluetooth connection, WiMAX connection, Zigbee connection, UWB (ultrawideband) connection or other wireless connection methods to be developed in the future.

While the terminal receives the myoelectric signal sent by the wearable device, the terminal can also obtain touch signals through the touch screen. In this implementation, the touch signal may be an electrical signal generated when the user's finger touches the touch screen. Different types of touch screens have different principles for generating touch signals. For example, for a pressure-sensitive resistive touch screen, when a finger touches the screen, two conductive layers come into contact at the touch point, and the resistance changes, thereby generating signals in the X and Y directions, that is, touch signals. For the capacitive touch screen that senses the electric field of the human body, when the finger touches the metal layer, the user and the surface of the touch screen form a coupling capacitor. With a very small current, this current can be used as a touch signal.

Those skilled in the art can understand that in this embodiment, since the myoelectric signal and the touch signal are acquired simultaneously, it can be considered that both the myoelectric signal and the touch signal are generated by the same touch action.

Then, in step 102, the touching finger performing the touching action is determined according to the myoelectric signal.

In this embodiment, after the electromyographic signal is obtained in the above step 101, data analysis and processing can be performed on the electromyographic signal. Since the myoelectric signal generated by each finger is different, it can be determined from the analysis results which finger is performing the touch action, such as the middle finger or the index finger, according to certain discrimination rules.

In an optional implementation manner of this embodiment, determining the touching finger performing the touching action according to the electromyographic signal includes: extracting characteristic parameters of the electromyographic signal; and determining the touching finger performing the touching action according to the characteristic parameters. In this embodiment, the terminal may use an absolute average value algorithm or an autoregressive algorithm to extract a feature vector of the electromyographic signal, and then use a training model or a constructed model to analyze the feature vector to determine the finger corresponding to the vector.

In yet another optional implementation of this embodiment, determining the touching finger performing the touch action according to the characteristic parameters includes: comparing the similarity between the characteristic parameters and the model parameters in the training model; if the similarity is greater than the preset threshold, then The finger corresponding to the model parameter is determined as the touching finger performing the touching action. In this embodiment, the training model is obtained through feature learning and training. In the feature training phase, the terminal can store the feature values extracted from the EMG signal samples as model parameters. In this way, multiple data models may be pre-stored in the training model, and each model includes a model parameter and a corresponding finger indication. When performing touch finger recognition, the obtained characteristic parameters can be compared with the model parameters in the training model for similarity, and the touch finger can be determined according to the comparison result. Specifically, when the similarity between the feature parameter and the model parameter is greater than a preset threshold, it can be considered that the finger corresponding to the model parameter is the touching finger performing the touch action.

Next, in step 103, the touch position of the touching finger is determined according to the touch signal.

In this embodiment, after the touch signal is obtained in the above step 101, the terminal can determine the touch position of the touching finger through the touch signal. Specifically, the terminal may convert the obtained touch signal into contact coordinates, and the contact coordinates indicate the specific touch position of the finger. For the resistive touch screen, after the signals generated in the X and Y directions are obtained, the position of the contact coordinates (X, Y) can be further calculated according to these signals. For a capacitive touch screen, when the finger absorbs a small current from the contact point, the current can flow out from the electrodes on the four corners of the touch screen, and the current flowing through these four electrodes is the same as that of the finger to the four corners. Proportional to the distance, the terminal can obtain the position of the touch point through accurate calculation of these four current ratios.

Finally, in step 104, based on the above-mentioned touch position, an operation action corresponding to the touching finger is performed.

In this embodiment, after the touch finger and the touch position of the touch finger are respectively determined in the above-mentioned steps 102 and 103, it is possible to first determine what the operation action corresponding to the touch finger is, and then perform this action on the determined touch position. action.

The terminal touch method provided by the above embodiments of the present application can receive the myoelectric signal sent by the wearable device, and at the same time obtain the touch signal through the touch screen of the terminal, and then determine the touch action of the touch action through the myoelectric signal and the touch signal respectively. The finger and its touch position, so that the operation action corresponding to the touch finger can be performed at the touch position. By performing different touch operations in response to different touching fingers, the types of touch operations can be enriched, and the touch efficiency of the terminal can be improved.

Further referring to FIG. 2 , it shows a process 200 of another embodiment of a terminal touch control method.

As shown in FIG. 2, in step 201, a corresponding operation action is set for the touching finger.

In this embodiment, a corresponding operation action may be set in advance for the touching finger. In the prior art, no matter which finger the user uses to tap the touch screen of the terminal, the terminal will perform the same operation. However, in the present application, different operation actions may be associated with touching fingers. Optionally, the operation actions may include, but are not limited to, operations such as popping up a context menu, selecting, running, deleting, creating a new folder, returning to the main interface, or returning to the previous step. In this way, when setting the corresponding operation action for the touch finger, the operation corresponding to the index finger can be set to select, the operation corresponding to the middle finger can be set to run, the operation corresponding to the ring finger can be set to delete, and the operation corresponding to the thumb can be set to back up One step and so on. Those skilled in the art can understand that the specific operation corresponding to the finger can be set by the user according to the operating habits and usage requirements, which is not limited in the present application.

In an optional implementation manner of this embodiment, setting the corresponding operation action for the touching finger includes: setting the operation action corresponding to the middle finger or the ring finger as a pop-up context menu. When performing touch operations, users are usually accustomed to using the index finger to select or run operations, which is consistent with the traditional operation habits of the left mouse button. However, existing terminals cannot provide operation functions similar to the right mouse button, for example, popping up a right-click menu. In this embodiment, the operation action corresponding to the middle finger or the ring finger can be set as a pop-up context menu whose function is similar to that of the right mouse button, and the operation with the middle finger or the ring finger is also consistent with traditional mouse operation habits. Therefore, this embodiment can further use the touch operation to simulate the traditional mouse operation habit, and completely transfer people's operation habit on the computer to various mobile terminals, further improving the convenience of the touch operation.

Then, in step 202, the myoelectric signal sent by the wearable device is received, and at the same time, the touch signal is acquired through the touch screen.

Next, in step 203, the touching finger performing the touching action is determined according to the myoelectric signal.

Then, in step 204, the touch position of the touching finger is determined according to the touch signal.

The foregoing steps 202 to 204 are the same as steps 101 to 103 in FIG. 1 , and will not be repeated in this embodiment.

Finally, in step 205, based on the above-mentioned touch position, an operation action corresponding to the touching finger is performed.

In this embodiment, the operation action corresponding to the touching finger may be determined first, and then the operation action is performed at the determined touch position.

In an optional implementation manner of this embodiment, performing an operation action corresponding to the touching finger based on the touch position includes: determining an operation object according to the touch position; and performing an operation action corresponding to the touch finger on the operation object. In this embodiment, once the touch position is determined, that is, the coordinate information of the touch point on the entire touch screen, the content currently displayed on the touch screen at this coordinate position, that is, the operation object, can be obtained. Different operation objects can be obtained according to the currently displayed interface, for example, for the main screen interface, the operation object can be a certain application program; for the short message editing interface, the operation object can be the text being edited, etc. Then, the operation action corresponding to the touch finger is determined according to the determined touch finger, and the specific content of the operation action has been set in step 201 . In this way, the operation action can be performed on the operation object.

In an optional implementation manner of this embodiment, setting the corresponding operation action for the touch finger includes: setting the corresponding operation action for the touch finger according to the operation object. Correspondingly, the above-mentioned execution of the operation action corresponding to the touching finger based on the touch position includes: determining the operation object according to the touch position; determining the operation action corresponding to the touch finger according to the operation object; and performing the operation action on the operation object.

In this embodiment, when setting a corresponding operation action for the touch finger, different operation actions can be set for the touch finger according to the characteristics of the operation object itself. For example, when the operation object is an application, the operation action corresponding to the middle finger can be set as a pop-up context menu, and the context menu can further include menu items such as move, delete, and properties, so that the user can perform further operations on the application . When the operation object is a piece of text information, since there is no need to perform operations such as attribute display, the operation action corresponding to the middle finger can be directly set to copy text information, and the operation action corresponding to the ring finger can be set to paste text information. In this way, the operation action corresponding to each finger is no longer static. When setting the operation action, the operation objects can be classified first, and then the corresponding relationship between the touching finger and the operation action of each type of operation object can be set. Then, when the same touching finger faces different operation objects, it can realize different operation actions.

Correspondingly, when the operation action corresponding to the touching finger is performed based on the touch position, the operation object may first be determined according to the current display interface and the touch position. Then, according to the preset correspondence among the operation object, the touching finger and the operation action, the operation action corresponding to the touch finger when facing the current operation object is determined. Finally, perform the corresponding operation action on the operation object. In this embodiment, by setting different finger touch operations for different operation objects, the applicability and effectiveness of the touch method can be improved.

It should be noted that, although operations of the methods of the present invention are depicted in the drawings in a particular order, this does not require or imply that the operations must be performed in that particular order, or that all illustrated operations must be performed to achieve the desired results. . Conversely, some of the steps depicted in the flowcharts may be performed in altered order. For example, in FIG. 2 , the execution order of step 201 may not be specific to that shown in FIG. 2 , as long as the operation action is set in step 201 before the operation action is performed in step 205 , it will not affect the implementation of the touch control method of the present invention. Additionally or alternatively, certain steps may be omitted, multiple steps may be combined into one step for execution, and/or one step may be decomposed into multiple steps for execution.

It can be seen from FIG. 2 that this embodiment further describes in detail an exemplary implementation manner of how to set and execute an operation action. In this embodiment, the operation action corresponding to the touch finger can be set, which further improves the flexibility when performing touch operation on the terminal.

Further referring to FIG. 3 , it shows a schematic structural diagram of an embodiment of a touch control device of a terminal.

As shown in FIG. 3 , the touch control device of the terminal in this embodiment includes: a signal acquisition module 310 , a finger determination module 320 , a position determination module 330 and an operation execution module 340 .

The signal obtaining module 310 is configured to receive the myoelectric signal sent by the wearable device, and simultaneously obtain the touch signal through the touch screen.

The finger determination module 320 is configured to determine the touching finger performing the touch action according to the myoelectric signal received by the signal acquisition module 310 .

The position determination module 330 is configured to determine the touch position of the touching finger according to the touch signal acquired by the signal acquisition module 310 .

The operation executing module 340 is configured to execute an operation action corresponding to the touching finger determined by the finger determining module 320 based on the touch position determined by the position determining module 330 .

In an optional implementation of this embodiment, the touch control device of the terminal further includes:

The operation setting module 350 is configured to set corresponding operation actions for the touching finger.

In an optional implementation of this embodiment, the operation actions include: popping up a context menu, selecting, running, deleting, creating a new folder, returning to the main interface or returning to a previous step.

In an optional implementation of this embodiment, the operation setting module 350 includes:

A menu setting unit (not shown in the figure) is used to set the operation action corresponding to the middle finger or the ring finger as a pop-up context menu.

In an optional implementation manner of this embodiment, the operation execution module 340 includes an object determination unit and an operation execution unit.

An object determination unit (not shown in the figure), configured to determine an operation object according to the touch position.

An operation execution unit (not shown in the figure), configured to perform an operation action corresponding to the touching finger on the operation object determined by the object determination unit.

In an optional implementation of this embodiment, the operation setting module 350 includes:

The object setting unit (not shown in the figure) is configured to set a corresponding operation action for the touching finger according to the operation object.

In an optional implementation manner of this embodiment, the operation execution module 340 includes:

An object determination unit (not shown in the figure), configured to determine an operation object according to the touch position.

An operation determination unit (not shown in the figure), configured to determine an operation action corresponding to the touching finger according to the operation object determined by the object determination unit.

An execution unit (not shown in the figure), configured to execute the operation action determined by the operation determination unit on the operation object determined by the object determination unit.

In an optional implementation of this embodiment, the finger determination module 320 includes: an extraction unit and a determination unit

An extraction unit (not shown in the figure) is used to extract characteristic parameters of the electromyography signal.

A determining unit (not shown in the figure), configured to determine the touching finger performing the touching action according to the characteristic parameters extracted by the extracting unit.

In an optional implementation manner of this embodiment, the determining unit includes: a comparing subunit and a determining subunit.

The comparison subunit (not shown in the figure) is used to compare the similarity between the feature parameters and the model parameters in the training model.

The determination subunit (not shown in the figure) is configured to determine the finger corresponding to the model parameter as the touching finger performing the touch action when the similarity compared by the comparison subunit is greater than a preset threshold.

It should be understood that the units or modules recorded in Fig. 3 correspond to the steps in the method described with reference to Figs. 1-2. Therefore, the operations and features described above for the method are also applicable to the device in FIG. 3 and the units or modules included therein, and will not be repeated here.

In the touch control device of the terminal provided by this application, the signal acquisition module can receive the myoelectric signal sent by the wearable device, and at the same time obtain the touch signal through the touch screen of the terminal, and then the finger determination module and the position determination module respectively pass the myoelectric signal and the touch signal The touch finger and its touch position for the touch action are determined, so that the operation execution module can execute the operation action corresponding to the touch finger at the touch position. By performing different touch operations in response to different touching fingers, the types of touch operations can be enriched, and the touch efficiency of the terminal can be improved.

The modules involved in the embodiments described in the present application may be implemented by means of software or hardware. The described modules can also be set in a processor, for example, it can be described as: a processor includes a signal acquisition module, a finger determination module, a position determination module and an operation execution module. Among them, the names of these modules do not constitute a limitation of the module itself under certain circumstances. For example, the signal acquisition module can also be described as "used to receive the myoelectric signal sent by the wearable device, and at the same time acquire the touch signal through the touch screen Signal module".

As another aspect, the present application also provides a computer-readable storage medium, which may be the computer-readable storage medium included in the device in the above embodiment; A computer-readable storage medium in a terminal. The computer-readable storage medium stores one or more programs, and the programs are used by one or more processors to execute the terminal touch method described in this application.

The above description is only a preferred embodiment of the present application and an illustration of the applied technical principle. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to the technical solution formed by the specific combination of the above-mentioned technical features, but should also cover the technical solution formed by the above-mentioned technical features without departing from the inventive concept. Other technical solutions formed by any combination of or equivalent features thereof. For example, a technical solution formed by replacing the above-mentioned features with technical features with similar functions disclosed in (but not limited to) this application.

Claims (18)

1. A terminal touch method, characterized in that the method comprises: Receive the myoelectric signal sent by the wearable device, and obtain the touch signal through the touch screen at the same time; determining the touching finger performing the touching action according to the myoelectric signal; determining a touch position of the touching finger according to the touch signal; Based on the touch position, an operation action corresponding to the touch finger is performed. 2. The method according to claim 1, characterized in that the method further comprises: A corresponding operation action is set for the touching finger. 3. The method according to claim 2, wherein the operation actions include: popping up a context menu, selecting, running, deleting, creating a new folder, returning to the main interface or returning to the previous step. 4. The method according to claim 3, wherein the setting the corresponding operation action for the touching finger comprises: Set the action corresponding to the middle finger or ring finger as the pop-up context menu. 5. The method according to any one of claims 1 to 4, wherein the performing an operation corresponding to the touching finger based on the touching position comprises: determining an operation object according to the touch position; An operation action corresponding to the touching finger is performed on the operation object. 6. The method according to claim 3, wherein the setting the corresponding operation action for the touching finger comprises: A corresponding operation action is set for the touching finger according to the operation object. 7. The method according to claim 6, wherein the performing the operation action corresponding to the touching finger based on the touching position comprises: determining an operation object according to the touch position; determining an operation action corresponding to the touching finger according to the operation object; Execute the operation action on the operation object. 8. The method according to claim 1, wherein said determining the touch finger performing a touch action according to the myoelectric signal comprises: Extracting the characteristic parameters of the electromyography signal; The touching finger performing the touching action is determined according to the characteristic parameters. 9. The method according to claim 8, wherein said determining the touching finger performing the touch action according to the characteristic parameters comprises: Comparing the similarity between the characteristic parameters and the model parameters in the training model; If the similarity is greater than a preset threshold, the finger corresponding to the model parameter is determined as the touching finger performing the touching action. 10. A terminal touch device, characterized in that the device comprises: The signal acquisition module is used to receive the myoelectric signal sent by the wearable device, and obtain the touch signal through the touch screen at the same time; A finger determining module, configured to determine the touching finger performing the touch action according to the myoelectric signal; a position determining module, configured to determine the touch position of the touching finger according to the touch signal; An operation executing module, configured to execute an operation action corresponding to the touching finger based on the touch position. 11. The device according to claim 10, further comprising: An operation setting module, configured to set a corresponding operation action for the touching finger. 12. The device according to claim 11, wherein the operation actions include: popping up a context menu, selecting, running, deleting, creating a new folder, returning to the main interface or returning to a previous step. 13. The device according to claim 12, wherein the operation setting module comprises: The menu setting unit is used to set the operation action corresponding to the middle finger or the ring finger as a pop-up context menu. 14. The device according to any one of claims 10 to 13, wherein the operation execution module comprises: an object determining unit, configured to determine an operation object according to the touch position; An operation executing unit, configured to execute an operation action corresponding to the touching finger on the operation object. 15. The device according to claim 12, wherein the operation setting module comprises: The object setting unit is configured to set a corresponding operation action for the touching finger according to the operation object. 16. The device according to claim 15, wherein the operation execution module comprises: an object determining unit, configured to determine an operation object according to the touch position; An operation determination unit, configured to determine an operation action corresponding to the touching finger according to the operation object; An execution unit, configured to execute the operation action on the operation object. 17. The device according to claim 10, wherein the finger determining module comprises: An extraction unit, configured to extract characteristic parameters of the electromyography signal; The determining unit is configured to determine the touching finger performing the touching action according to the characteristic parameters. 18. The device according to claim 17, wherein the determining unit comprises: A comparison subunit is used to compare the similarity between the characteristic parameters and the model parameters in the training model; The determining subunit is configured to determine the finger corresponding to the model parameter as the touching finger performing the touching action when the similarity is greater than a preset threshold.