Touch screen device for switching handwriting types based on pressure sensing technology

Abstract

The invention provides a touch screen device for switching handwriting types based on a pressure sensing technology, and the device comprises a plurality of teaching pens which are used for writing on a touch screen, and are also used for transmitting information to the touch screen based on the pressure sensing technology; and the touch screen is used for receiving the message sent by the teaching pen and displaying the writing track of the teaching pen by using the handwriting type corresponding to the teaching pen. The method has the advantages that the real chalk / whiteboard pen use experience is achieved, pens of different colors can be selected, corresponding colors can be written on a whiteboard, and handwriting of different line types and thicknesses can be supported. The use mode better conforms to the WYSIWYG experience, the threshold of using the teaching system is lowered, and the complex operation process of handwriting switching is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of touch screens, and in particular relates to a touch screen device for switching handwriting types based on pressure sensing technology. Background Art

[0002] The teaching touch screen is a teaching aid. Its large screen and the ability to write directly on the screen make it convenient for teaching staff to display content and for students to view content.

[0003] When teaching staff use a teaching pen to teach writing on a large screen, they often switch handwriting, such as using handwriting of different colors to highlight different teaching contents, using handwriting of different linearity or thickness to draw, etc.

[0004] There are two ways to switch teaching pens currently in use: one is to use software to switch, that is, you need to manually select the type of teaching pen you need to use in the large-screen software to switch the current writing teaching pen; when using software to switch the teaching pen type, you often need to click multiple times in the software toolbar or menu to select the required teaching pen type. Another way is to use a fixed pen holder, and pens of different colors or line types are placed in a fixed position on the pen holder. When the teaching staff picks up a certain pen, the fixed pen holder can sense that the pen has been picked up, and can notify the large-screen software to switch the line type of the currently used teaching pen. The problem with this method is that after using the teaching pen, the teaching staff must put the pen in the corresponding position of the fixed pen holder. Such an operation is too demanding for the teaching staff and is very inconvenient to use. In particular, the large screen and the teaching pen are public items. If a teaching staff places the pen incorrectly, it will affect other teaching staff. Summary of the invention

[0005] The purpose of the present invention is to overcome the defect of complicated operation when switching teaching pens on the existing touch screen device.

[0006] In order to achieve the above object, the present invention proposes a touch screen device for switching handwriting types based on pressure sensing technology, the device comprising:

[0007] A plurality of teaching pens for writing on the touch screen and for sending information to the touch screen based on pressure sensing technology; and

[0008] The touch screen is used to receive messages sent by the teaching pen and display the writing track of the teaching pen using the handwriting type corresponding to the teaching pen.

[0009] As an improvement of the above device, the teaching pen includes a pressure sensing module, which is used to sense pressure when the teaching pen writes on the touch screen and send information to the touch screen.

[0010] As an improvement of the above device, the touch screen includes an information receiving module and a display module; wherein:

[0011] The information receiving module is used to receive information sent by the teaching pen;

[0012] The display module is used to display the handwriting corresponding to the type of the teaching pen on the touch screen.

[0013] As an improvement of the above device, the handwriting type includes the color, line type and / or thickness of the handwriting.

[0014] As an improvement of the above device, the teaching pen has a unique ID value, and the information sent by the teaching pen to the touch screen includes the ID value.

[0015] As an improvement of the above device, the touch screen also includes a configuration module for configuring the corresponding relationship between the teaching pen ID value and different handwriting types.

[0016] As an improvement of the above device, the teaching pen has multiple unique ID values, and a switching switch is used to control the ID value currently in use.

[0017] As an improvement of the above device, the teaching pen has different labels indicating the characteristics of its handwriting type according to the different handwriting types it represents.

[0018] As an improvement of the above-mentioned device, the display module memorizes the currently displayed handwriting type and the writing trajectory of the current teaching pen. If the currently displayed handwriting type does not correspond to the teaching pen being written, the writing trajectory of the current teaching pen is uniformly modified to the handwriting type corresponding to the teaching pen being written.

[0019] Compared with the prior art, the advantages of the present invention are:

[0020] The technical solution provided by this application can solve the problem of holding a pen of the corresponding handwriting type, and the touch screen will display the pen of the corresponding handwriting when writing, which is similar to the experience of simulating teachers and other users using real chalk / whiteboard pens. Different colors of pens can be selected to write corresponding colors on the whiteboard, and different line types and thicknesses of handwriting can be supported. The use of this pen is more in line with the intuitive experience of what you see is what you get, which lowers the threshold for users to use the teaching system and reduces the complex operation process such as switching handwriting. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The figure shows a schematic diagram of the structure of a touch screen device for switching handwriting types based on pressure sensing technology;

[0022] Figure 2 Shown is a schematic diagram of the teaching pen structure.

[0023] Reference numerals:

[0024] 1. Pressure sensing module 2. Pen body

[0025] 3. Pen tip DETAILED DESCRIPTION

[0026] The technical solution of the present invention is described in detail below with reference to the accompanying drawings.

[0027] The present application provides a touch screen device for switching handwriting types based on pressure sensing technology, which uses pressure sensing technology to support intelligent switching of handwriting types on the touch screen according to the teaching pen held by the teaching staff. Figure 1 As shown, the device includes a touch screen and multiple teaching pens.

[0028] like Figure 2 As shown, the teaching pen is a touch screen-specific pen that can be used for writing or drawing on a touch screen. The teaching pen comprises a pressure sensing module 1, a pen body 2 and a pen head 3.

[0029] The pressure sensing module 1 includes a pressure sensor. A pressure sensor is a device that can sense pressure signals and convert pressure signals into usable output electrical signals according to certain rules. A pressure sensor is usually composed of a pressure sensitive element and a signal processing unit. Common types of pressure sensors include piezoresistive pressure sensors, ceramic pressure sensors, diffused silicon pressure sensors, piezoelectric pressure sensors, etc.

[0030] When using the teaching pen to write on the touch screen, the pressure sensing module 1 can sense the pressure on the pen tip and send information to the touch screen. Each teaching pen has its own unique ID value, which is used to distinguish it from other teaching pens. The information sent by the pressure sensing module 1 to the touch screen contains the ID value of the teaching pen. The ID value of each teaching pen corresponds to a different handwriting type, which includes the color, line type, thickness, etc. of the handwriting. In order to clearly distinguish the handwriting type represented by the teaching pen, an intuitive handwriting type style can be pasted or sprayed on the teaching pen to distinguish it. For example, teaching pens with different colors of handwriting are distinguished by different colors.

[0031] The touch screen has an information receiving module that can receive the signal sent by the pressure sensing module 1 on the teaching pen. When the information receiving module receives the signal sent by the pressure sensing module 1, the ID value of the teaching pen is obtained from the signal, and the handwriting type of the teaching pen writing on the touch screen can be obtained according to the ID value.

[0032] The touch screen also has a display module. When the teaching pen writes on the touch screen, the display module displays the corresponding handwriting type on the touch screen according to the teaching pen type obtained by the receiving module.

[0033] The touch screen also has a configuration module that supports the configuration of the correspondence between the teaching pen ID value and the handwriting type. When the information receiving module extracts the teaching pen ID value from the received information, the handwriting type corresponding to the teaching pen can be obtained from the configuration module. The configuration information can be changed so that the handwriting type of the teaching pen can be flexibly changed, so that there is no need to prepare a teaching pen with a pressure sensing module for each handwriting type. Instead, it is only necessary to prepare several teaching pens with pressure sensing modules for several commonly used handwriting types, and prepare an ordinary teaching pen, which can meet most teaching scenarios.

[0034] Furthermore, a teaching pen can be configured with multiple ID values, and the current ID value is controlled by a switching switch. In conjunction with the configuration module of the touch screen, different ID values ​​can be configured as different handwriting types, so that a teaching pen can write different handwritings on the touch screen by switching the switch.

[0035] Through the information transmission from the pressure sensing module 1 of the teaching pen to the information receiving module of the touch screen and then to the display of the display module, the teaching staff can pick up a certain type of teaching pen and write directly on the touch screen. The touch screen can adjust the handwriting type in real time according to the teaching pen, which greatly simplifies the operation process of switching handwriting during teaching.

[0036] The pressure sensing module 1 of the teaching pen and the information receiving module of the touch screen transmit information wirelessly, and wireless transmission technologies such as WIFI, Bluetooth, and UWB can be used.

[0037] In actual use, when the teaching pen starts writing on the touch screen, there is a certain time difference from the pressure sensing module 1 sensing the pressure, to the information receiving module receiving the information, and then to the display module switching the handwriting according to the type of the teaching pen. Therefore, when the teaching pen writes on the touch screen, it is possible that the first short line segment displayed is still the handwriting type of the previous teaching pen, and then it will change to the handwriting type of the current teaching pen. In order to solve this problem, the display module needs to memorize the current handwriting type and the track of the current teaching pen writing this time. If the currently displayed handwriting type is different from the type of the teaching pen currently writing, the writing track of the current teaching pen is uniformly modified to the handwriting type of the teaching pen currently writing.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention is described in detail with reference to the embodiments, it should be understood by those skilled in the art that any modification or equivalent replacement of the technical solutions of the present invention does not depart from the spirit and scope of the technical solutions of the present invention and should be included in the scope of the claims of the present invention.

Claims

1. A touch screen device for switching handwriting types based on pressure sensing technology, characterized in that: The device comprises: A plurality of teaching pens for writing on the touch screen and for sending information to the touch screen based on pressure sensing technology; and The touch screen is used to receive messages sent by the teaching pen and display the writing track of the teaching pen using the handwriting type corresponding to the teaching pen.

2. The touch screen device supporting intelligent switching of handwriting types according to claim 1, characterized in that: The teaching pen comprises a pressure sensing module, which is used for sensing pressure when the teaching pen writes on the touch screen and sending information to the touch screen.

3. The touch screen device supporting intelligent switching of handwriting types according to claim 1, characterized in that: The touch screen includes an information receiving module and a display module; wherein: The information receiving module is used to receive information sent by the teaching pen; The display module is used to display the handwriting corresponding to the type of the teaching pen on the touch screen.

4. The touch screen device supporting intelligent switching of handwriting types according to claim 1, characterized in that: The handwriting type includes the color, line type and / or thickness of the handwriting.

5. The touch screen device supporting intelligent switching of handwriting types according to claim 1, characterized in that: The teaching pen has a unique ID value, and the information sent by the teaching pen to the touch screen includes the ID value.

6. The touch screen device supporting intelligent switching of handwriting types according to claim 5, characterized in that: The touch screen also includes a configuration module for configuring the corresponding relationship between the teaching pen ID value and different handwriting types.

7. The touch screen device supporting intelligent switching of handwriting types according to claim 6, characterized in that: The teaching pen has a plurality of unique ID values, and a switching switch is used to control the ID value currently in use.

8. The touch screen device supporting intelligent switching of handwriting types according to claim 1, characterized in that: The teaching pen has different labels indicating the characteristics of the handwriting type according to the different handwriting types it represents.

9. The touch screen device supporting intelligent switching of handwriting types according to claim 1, characterized in that: The display module memorizes the currently displayed handwriting type and the writing track of the current teaching pen. If the currently displayed handwriting type does not correspond to the teaching pen being written, the writing track of the current teaching pen is uniformly modified to the handwriting type corresponding to the teaching pen being written.

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