CN108073334B - Vector operation-based suspension touch method and device - Google Patents

Abstract

The present invention is applicable to the technical field of touch screens, and provides a floating touch method and device based on vector operation. The method includes: continuously performing multiple detections within a preset range of the touch screen according to a preset time interval, so as to obtain multiple sets of coordinate information and corresponding time on the touch screen corresponding to the user's fingertip performing a hovering operation directly above the touch screen. information, record the multiple sets of coordinate information and the corresponding time information; according to the multiple sets of coordinate information and the corresponding time information, calculate the hovering operation of the user's fingertip; perform the hovering operation on the three-dimensional image displayed on the touch screen The corresponding action event. Thus, the multi-touch detection in the floating touch and the floating touch operation interacting with the three-dimensional image are realized, which greatly improves the user experience.

Description

A floating touch method and device based on vector operation

technical field

The invention belongs to the technical field of touch screens, and in particular relates to a floating touch method and device based on vector operations.

Background technique

There are two types of capacitive sensors on existing touch screens, mutual capacitance and self capacitance. Among them, mutual capacitance is used to realize multi-touch detection; self-capacitance can generate a stronger signal than mutual capacitance and detect farther finger sensing, but due to an effect called "ghosting", self-capacitance Multi-touch is not possible.

The current floating touch technology generally uses the distance sensing of mutual capacitance to realize the floating touch operation. Therefore, the existing floating touch operation cannot realize multi-point touch, which is inconvenient for the user to operate, and cannot realize the touch operation of the three-dimensional image. .

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a hovering touch method and device based on vector operation, so as to realize multi-touch detection in hovering touch, and hovering touch operation interacting with a three-dimensional image.

The present invention is implemented in this way, a floating touch method based on vector operation, the method comprising:

Continuously perform multiple detections within the preset range of the touch screen at preset time intervals to obtain multiple sets of coordinate information and corresponding time information on the touch screen corresponding to the user's fingertip hovering directly above the touch screen, and record the Multiple sets of coordinate information and corresponding time information;

performing vector operations on the multiple sets of coordinate information and the corresponding time information to obtain the levitation operation of the user's fingertip;

A corresponding operation event is executed on the three-dimensional image displayed on the touch screen according to the hovering operation.

Further, the coordinate information includes X-axis coordinates and Y-axis coordinates; the detection includes:

The change of capacitance on the touch screen is detected, and the X-axis and Y-axis coordinates of the position of the user's fingertip vertically mapped on the touch screen are calculated according to the change of capacitance.

Further, the coordinate information also includes Z-axis coordinates; the detection includes:

Detect the attenuation degree of the electric field, and calculate the height distance between the user's fingertip and the touch screen according to the attenuation degree of the electric field;

When the height distance is smaller than the preset threshold, the height distance is used as the Z-axis coordinate of the user's fingertip on the touch screen.

Further, the levitation operation of the user's fingertip includes the running direction and running speed of the user's fingertip;

The vector operation performed on the multiple sets of coordinate information and the corresponding time information to obtain the levitation operation of the user's fingertip is specifically:

Taking each set of coordinate information as a vector, perform vector operation on the vector to obtain the running direction of the user's fingertip; and, perform vector operation on the vector and its corresponding time information to obtain the running direction of the user's fingertip speed;

The execution of the corresponding operation event on the three-dimensional image displayed on the touch screen according to the floating operation is specifically:

According to the running direction and running speed of the user's fingertip obtained by the vector operation, a corresponding operation event is executed on the three-dimensional image displayed on the touch screen.

Further, the method also includes:

When the return instruction input by the user is received, the hovering touch operation is ended.

A second aspect of the present invention further provides a floating touch device based on vector operations, the device comprising:

The detection module is used to continuously perform multiple detections within the preset range of the touch screen according to the preset time interval, so as to obtain multiple sets of coordinate information and corresponding time on the touch screen corresponding to the user's fingertip hovering operation directly above the touch screen information, record the multiple sets of coordinate information and corresponding time information;

a calculation module for performing vector operations on the multiple sets of coordinate information and the corresponding time information to obtain the levitation operation of the user's fingertip;

The execution module is configured to execute a corresponding operation event on the three-dimensional image displayed on the touch screen according to the floating operation.

Further, the coordinate information includes X-axis coordinates and Y-axis coordinates; the detection module includes a first detection unit, and the first detection unit is used for:

The change of capacitance on the touch screen is detected, and the X-axis and Y-axis coordinates of the position of the user's fingertip vertically mapped on the touch screen are calculated according to the change of capacitance.

Further, the coordinate information also includes Z-axis coordinates; the detection module further includes a second detection unit, and the second detection unit is used for:

Detect the attenuation degree of the electric field, and calculate the height distance between the user's fingertip and the touch screen according to the attenuation degree of the electric field;

When the height distance is smaller than the preset threshold, the height distance is used as the Z-axis coordinate of the user's fingertip on the touch screen.

Further, the levitation operation of the user's fingertip includes the running track and running speed of the user's fingertip;

The computing module is specifically used for:

Taking each set of coordinate information as a vector, perform vector operation on the vector to obtain the running direction of the user's fingertip; and, perform vector operation on the vector and its corresponding time information to obtain the running direction of the user's fingertip speed;

The execution module is specifically used for:

According to the running direction and running speed of the user's fingertip obtained by the vector operation, a corresponding operation event is executed on the three-dimensional image displayed on the touch screen.

Further, the device also includes:

The return module is used to end the hovering touch operation when receiving the return instruction input by the user.

The present invention obtains multiple sets of coordinate information on the touch screen corresponding to when the user's fingertip hovers directly above the touch screen by continuously performing multiple detections at preset time intervals within the preset range of the touch screen of the user equipment and the corresponding time information, and according to the multiple sets of coordinate information and the corresponding time information, the levitating operation of the user's fingertip is calculated through vector operations; and the corresponding operation event is executed on the three-dimensional image displayed on the touch screen according to the levitating operation. Thus, the multi-touch detection in the floating touch and the floating touch operation interacting with the three-dimensional image are realized, which greatly improves the user experience.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

FIG. 1 is a first implementation flowchart of a vector operation-based hover touch method provided in Embodiment 1 of the present invention;

FIG. 2 is a second implementation flowchart of the vector operation-based hover touch method provided in Embodiment 2 of the present invention;

FIG. 3 is a structural diagram of a floating touch device based on vector operations according to Embodiment 2 of the present invention.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

The present invention obtains multiple sets of coordinate information on the touch screen corresponding to when the user's fingertip hovers directly above the touch screen by continuously performing multiple detections at preset time intervals within the preset range of the touch screen of the user equipment and the corresponding time information, and according to the multiple sets of coordinate information and the corresponding time information, the levitating operation of the user's fingertip is calculated through vector operations; and the corresponding operation event is executed on the three-dimensional image displayed on the touch screen according to the levitating operation. Thus, the multi-touch detection in the floating touch and the floating touch operation interacting with the three-dimensional image are realized, which greatly improves the user experience.

Example 1

FIG. 1 shows a first implementation flow of the vector operation-based hover touch method provided by Embodiment 1 of the present invention. In this embodiment, the method is applicable to a user equipment (UE, UserEquipment) having a capacitive touch display screen (eg, a mobile phone, a smart terminal, a multimedia device, a streaming media device, etc.), which is not limited here.

As shown in Figure 1, the method includes:

In step S101, multiple detections are continuously performed within a preset range of the touch screen according to a preset time interval to obtain multiple sets of coordinate information and corresponding time on the touch screen corresponding to the user's fingertip hovering directly above the touch screen. information, and record the multiple sets of coordinate information and corresponding time information.

In this embodiment, a detection range is preset on the touch screen. Within the detection range, when a human finger touches the capacitive touch screen, due to the grounding of the human body, an equivalent capacitance is formed between the finger and the working surface of the capacitive touch screen, and the high-frequency signal connected to the working surface can pass through this equivalent capacitance. into the ground wire. The user's operation on the touch screen is generally completed through the fingertip, therefore, the fingertip is generally closest to the working surface of the capacitive touch screen. At this time, the capacitance change on the touch screen position corresponding to the fingertip is the largest. By detecting the position with the largest capacitance change, the corresponding position of the fingertip on the touch screen in the floating operation is determined, and a set of coordinate information of the user's fingertip on the touch screen is obtained. , and simultaneously record the time information corresponding to the coordinate information. The coordinate information includes an X-axis coordinate, a Y-axis coordinate and a Z-axis coordinate of the user's fingertip vertically mapped on the touch screen (ie, the vertical distance between the user's fingertip and the touch screen). The time information is the current time corresponding to each detection.

Refresh is performed according to a preset time interval, the next position with the largest capacitance change is detected, and the coordinate information of the next position with the largest capacitance change and its corresponding time information are recorded. As an implementation example of the present invention, the preset time interval is preferably 0.8 seconds. When the user performs a floating touch operation on the top of the touch screen, refresh is performed every 0.8 seconds, and the position on the capacitive touch screen where the capacitance changes the most is detected to determine a series of discrete floating touch operation points corresponding to the floating touch operation. The coordinate information and the corresponding detection time.

In step S102, a vector operation is performed on the multiple sets of coordinate information and the corresponding time information to obtain a hovering operation of the user's fingertip.

In this embodiment, the hovering operation of the user's fingertip includes the running direction and running speed of the fingertip. Taking each set of coordinate information as a vector, perform vector operation on the vector to obtain the running direction of the user's fingertip; and, perform vector operation on the vector and its corresponding time information to obtain the running direction of the user's fingertip speed.

Preferably, the hovering operation of the user's fingertip may further include the running acceleration of the user's fingertip.

In step S103, a corresponding operation event is performed on the three-dimensional image displayed on the touch screen according to the hovering operation.

After the running direction and running speed of the fingertip are obtained, corresponding operation events are performed on the three-dimensional image displayed by the capacitive touch screen.

In this embodiment, the operation events include rotation/flip operations at different angles in a three-dimensional space, sliding operations at different speeds or paths, etc., so as to realize virtual control of the three-dimensional image.

The present invention obtains multiple sets of coordinate information on the touch screen corresponding to when the user's fingertip hovers directly above the touch screen by continuously performing multiple detections at preset time intervals within the preset range of the touch screen of the user equipment and the corresponding time information, and according to the multiple sets of coordinate information and the corresponding time information, the levitating operation of the user's fingertip is calculated through vector operations; and the corresponding operation event is executed on the three-dimensional image displayed on the touch screen according to the levitating operation. Thus, the multi-touch detection in the floating touch and the floating touch operation interacting with the three-dimensional image are realized, which greatly improves the user experience.

Embodiment 2

FIG. 2 shows a second implementation process of the vector operation-based hover touch method provided in Embodiment 2 of the present invention. In this embodiment, the method is applicable to a user equipment (UE, UserEquipment) having a capacitive touch display screen (eg, a mobile phone, a smart terminal, a multimedia device, a streaming media device, etc.), which is not limited here.

As shown in Figure 2, the method includes:

In step S201, the hover touch function is activated.

In this embodiment, the user equipment responds to the request information input by the user for starting the floating touch function, and starts the floating touch function according to the request information input by the user. The request information may be sent by the user through a preset button on the user equipment or a button or a combination of multiple buttons in the existing buttons; or, the request information for starting the hovering touch sent by the user through the touch screen of the user equipment.

In step S202, it is determined whether there is a finger movement within a preset range of the touch screen.

In this embodiment, within the preset detection range of the capacitive touch screen, it is determined whether the capacitance on the capacitive touch screen changes, so as to determine whether there is finger movement on the capacitive touch screen. When the finger approaches the capacitive touch screen, the capacitance on the capacitive touch screen will change, indicating that a finger is moving. At this time, steps S203 and 204 are performed simultaneously according to a preset time interval. Otherwise, step S209 is performed, no operation is performed, and step S202 is returned. The preset time interval is preferably 0.8 seconds.

In step S203, the change of the capacitance on the touch screen is detected, and the X-axis coordinate and the Y-axis coordinate of the position of the user's fingertip vertically mapped on the touch screen are calculated according to the change of the capacitance.

The X-axis coordinate, Y-axis coordinate and Z-axis coordinate together constitute a set of coordinate information of the fingertip on the capacitive touch screen. The detected current time is recorded, and the detected current time is the time information corresponding to the set of coordinate information. Jump to step S205.

In step S204, the attenuation degree of the electric field is detected, and the height distance between the user's fingertip and the touch screen is calculated according to the attenuation degree of the electric field; when the height distance is less than a preset threshold, the height distance is used as the user's fingertip on the touch screen. the Z coordinate of the .

Preferably, when the height distance is greater than or equal to a preset threshold, the preset threshold is used as the Z-axis coordinate of the user's fingertip on the touch screen, and the process jumps to step S205. The preset threshold is preferably any value of 10-30 mm.

By performing multiple detections at preset time intervals, the coordinate information of a series of discrete levitation touch points and corresponding time information corresponding to the levitation operation issued by the user's fingertip are obtained.

In step S205, it is determined whether the finger movement ends within a preset range of the touch screen.

In this embodiment, if the capacitance on the capacitive touch screen no longer changes, it means that the finger movement on the capacitive touch screen has ended. Preferably, when the capacitance on the capacitive touch screen no longer changes within a preset time interval (for example, 1 second) after steps S203 and S204 are performed, step S206 is performed; otherwise, the process returns to the step according to the preset time interval S203 and 204.

In step S206, using each set of coordinate information as a vector, perform vector operation on the vector to obtain the running direction of the user's fingertip; and perform vector operation on the vector and its corresponding time information to obtain The speed of the user's fingertips.

Through vector calculation, the running direction and running speed of the user's fingertip are obtained, so as to fit the trajectory and speed information of the user's fingertip hovering operation.

In step S207, according to the running direction and running speed of the user's fingertip obtained by the vector operation, a corresponding operation event is executed on the three-dimensional image displayed on the touch screen.

In this embodiment, the operation events include rotation/flip operations at different angles in a three-dimensional space, sliding operations at different speeds or paths, etc., so as to realize the floating touch on the three-dimensional image.

Preferably, the present invention also includes:

In step S208, when a return instruction input by the user is received, the hovering touch operation is ended.

When receiving the return instruction input by the user, exit the floating touch function and return to the ordinary touch screen function.

The present invention obtains multiple sets of coordinate information on the touch screen corresponding to when the user's fingertip hovers directly above the touch screen by continuously performing multiple detections at preset time intervals within the preset range of the touch screen of the user equipment and the corresponding time information, and according to the multiple sets of coordinate information and the corresponding time information, the levitating operation of the user's fingertip is calculated through vector operations; and the corresponding operation event is executed on the three-dimensional image displayed on the touch screen according to the levitating operation. Thus, the multi-touch detection in the floating touch and the floating touch operation interacting with the three-dimensional image are realized, which greatly improves the user experience.

Embodiment 3

FIG. 3 shows a structural diagram of a floating touch device based on a vector operation provided by Embodiment 3 of the present invention. For convenience of explanation, only the parts related to the present invention are shown.

In this embodiment, the device is applied to a user equipment (UE, UserEquipment) having a capacitive touch display screen (eg, a mobile phone, a smart terminal, a multimedia device, a streaming media device, etc.), which is not limited here.

As shown in Figure 3, the device includes:

The detection module 31 is used to continuously perform multiple detections within the preset range of the touch screen according to the preset time interval, so as to obtain multiple sets of coordinate information on the touch screen corresponding to the user's fingertip hovering operation directly above the touch screen and the corresponding Time information, recording the multiple sets of coordinate information and corresponding time information.

In this embodiment, the coordinate information includes X-axis coordinates and Y-axis coordinates; the detection module 31 includes a first detection unit 311, and the first detection unit 311 is used for:

The change of the capacitance on the touch screen is detected, and the X-axis coordinate and the Y-axis coordinate of the user's fingertip vertically mapped on the touch screen are calculated according to the change of the capacitance.

In this embodiment, the coordinate information further includes Z-axis coordinates; the detection module 31 further includes a second detection unit 312, and the second detection unit 312 is used for:

Detect the attenuation degree of the electric field, and calculate the height distance between the user's fingertip and the touch screen according to the attenuation degree of the electric field;

When the height distance is smaller than the preset threshold, the height distance is used as the Z-axis coordinate of the user's fingertip on the touch screen.

Preferably, when the height distance is greater than or equal to a preset threshold, the preset threshold is used as the Z-axis coordinate of the user's fingertip on the touch screen. The preset threshold is preferably any value of 10-30 mm.

The calculation module 32 is configured to perform vector operations on the multiple sets of coordinate information and the corresponding time information to obtain the hovering operation of the user's fingertip.

The execution module 33 is configured to execute a corresponding operation event on the three-dimensional image displayed on the touch screen according to the hovering operation.

In this embodiment, the hovering operation of the user's fingertip includes the running direction and running speed of the user's fingertip;

In this embodiment, the computing module 32 is specifically used for:

Taking each set of coordinate information as a vector, perform vector operation on the vector to obtain the running direction of the user's fingertip; and, perform vector operation on the vector and its corresponding time information to obtain the running direction of the user's fingertip speed.

The execution module 33 is specifically used for:

According to the running track and running speed of the user's fingertip obtained by the vector operation, the corresponding operation event is executed on the three-dimensional image displayed on the touch screen.

In this embodiment, the operation events include rotation/flip operations at different angles in a three-dimensional space, sliding operations at different speeds or paths, etc., so as to realize the floating touch on the three-dimensional image.

Preferably, the device further comprises:

The returning module 34 is configured to end the hovering touch operation when receiving the returning instruction input by the user.

In this embodiment, multiple sets of coordinate information on the touch screen corresponding to when the user's fingertip hovers directly above the touch screen and the corresponding The time information of the user's fingertip is calculated by the calculation module according to the multiple sets of coordinate information and the corresponding time information through vector operation; the execution module performs the corresponding operation on the three-dimensional image displayed on the touch screen according to the suspension operation. event. Thus, the multi-touch detection in the floating touch and the floating touch operation interacting with the three-dimensional image are realized, which greatly improves the user experience.

Those of ordinary skill in the art can also understand that all or part of the steps in the methods of the above embodiments can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable storage medium, so The storage medium described above includes ROM/RAM, magnetic disk, optical disk, etc.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For example, each module is only divided according to the functional logic, but it is not limited to the above-mentioned division, as long as the corresponding function can be realized; in addition, the specific names of each functional module are only for the convenience of distinguishing from each other, and are not used to limit the present the scope of protection of the invention.

Any modifications, equivalent replacements and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims (6)

1. A floating touch method based on vector operation is characterized by comprising the following steps:

continuously detecting for multiple times within a preset range of the touch screen according to a preset time interval to obtain multiple sets of coordinate information and corresponding time information on the touch screen corresponding to the fingertip of a user performing a suspension operation right above the touch screen, and recording the multiple sets of coordinate information and the corresponding time information, wherein the coordinate information comprises an X-axis coordinate, a Y-axis coordinate and a Z-axis coordinate;

performing vector operation on the multiple sets of coordinate information and the corresponding time information to obtain the suspension operation of the user fingertip, wherein the suspension operation of the user fingertip comprises the running direction, the running speed and the running acceleration of the fingertip, each set of coordinate information is used as a vector, the vector operation is performed on the vector to obtain the running direction of the user fingertip, and the vector and the corresponding time information are performed on the vector to obtain the running speed of the user fingertip;

executing corresponding operation events on the three-dimensional image displayed on the touch screen according to the suspension operation, wherein the operation events comprise rotation/turning operations of different angles and sliding operations of different speeds or paths in a three-dimensional space;

wherein the detecting comprises:

detecting the change condition of a capacitor on the touch screen, and calculating an X-axis coordinate and a Y-axis coordinate of the position where the fingertip of a user is located and vertically mapped on the touch screen according to the change condition of the capacitor;

detecting the attenuation degree of the electric field, and calculating the height distance between the fingertip of the user and the touch screen according to the attenuation degree of the electric field;

when the height distance is smaller than a preset threshold value, taking the height distance as a Z-axis coordinate of the fingertip of the user on the touch screen; and when the height distance is larger than a preset threshold value, taking the preset threshold value as a Z-axis coordinate of the fingertip of the user on the touch screen.

2. The vector-operation-based hover touch method of claim 1, wherein the hover operation of the user fingertip comprises a running direction and a running speed of the user fingertip;

the vector operation on the multiple sets of coordinate information and the corresponding time information to obtain the suspension operation of the user fingertip specifically comprises:

taking each group of coordinate information as a vector, and carrying out vector operation on the vector to obtain the running direction of the fingertip of the user; performing vector operation on the vector and the corresponding time information to obtain the operating speed of the fingertip of the user;

the executing of the corresponding operation event on the three-dimensional image displayed on the touch screen according to the suspension operation specifically comprises:

and executing a corresponding operation event on the three-dimensional image displayed by the touch screen according to the running direction and the running speed of the user fingertip obtained by the vector operation.

3. The vector-operation-based hover touch method of any of claims 1-2, wherein the method further comprises:

and when a return instruction input by a user is received, finishing the floating touch operation.

4. A floating touch device based on vector operation, the device comprising:

the detection module is used for continuously carrying out detection for multiple times within a preset range of the touch screen according to a preset time interval so as to obtain multiple sets of coordinate information and corresponding time information on the touch screen corresponding to the fingertip of a user when the fingertip of the user is in suspension operation right above the touch screen, and recording the multiple sets of coordinate information and the corresponding time information, wherein the coordinate information comprises an X-axis coordinate, a Y-axis coordinate and a Z-axis coordinate;

the calculation module is used for performing vector operation on the multiple sets of coordinate information and the corresponding time information to obtain the suspension operation of the user fingertip, wherein the suspension operation of the user fingertip comprises the running direction, the running speed and the running acceleration of the fingertip, each set of coordinate information is used as a vector, the vector is subjected to vector operation to obtain the running direction of the user fingertip, and the vector and the corresponding time information are subjected to vector operation to obtain the running speed of the user fingertip;

the execution module is used for executing corresponding operation events on the three-dimensional image displayed by the touch screen according to the suspension operation, wherein the operation events comprise rotation/turning operations of different angles and sliding operations of different speeds or paths in a three-dimensional space;

wherein, the detection module includes first detecting element and second detecting module, first detecting element is used for: detecting the change condition of a capacitor on the touch screen, and calculating an X-axis coordinate and a Y-axis coordinate of the position where the fingertip of a user is located and vertically mapped on the touch screen according to the change condition of the capacitor;

the second detection unit is used for: detecting the attenuation degree of the electric field, and calculating the height distance between the fingertip of the user and the touch screen according to the attenuation degree of the electric field;

when the height distance is smaller than a preset threshold value, taking the height distance as a Z-axis coordinate of the fingertip of the user on the touch screen; and when the height distance is larger than a preset threshold value, taking the preset threshold value as a Z-axis coordinate of the fingertip of the user on the touch screen.

5. The vector-operation-based hover touch device of claim 4, wherein the hover operation of the user fingertip comprises a running direction and a running speed of the user fingertip;

the calculation module is specifically configured to:

taking each group of coordinate information as a vector, and carrying out vector operation on the vector to obtain the running direction of the fingertip of the user; performing vector operation on the vector and the corresponding time information to obtain the operating speed of the fingertip of the user;

the execution module is specifically configured to:

and executing a corresponding operation event on the three-dimensional image displayed by the touch screen according to the running direction and the running speed of the user fingertip obtained by the vector operation.

6. The vector-operation-based hover touch device of any of claims 4-5, wherein the device further comprises:

and the return module is used for ending the floating touch operation when receiving a return instruction input by the user.

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