WO2022256965A1

WO2022256965A1 - Stylus pen, intelligent interactive panel, intelligent blackboard, and interactive operation method based on stylus pen

Info

Publication number: WO2022256965A1
Application number: PCT/CN2021/098612
Authority: WO
Inventors: 黎庆锋
Original assignee: 广州视源电子科技股份有限公司; 广州视睿电子科技有限公司
Priority date: 2021-06-07
Filing date: 2021-06-07
Publication date: 2022-12-15
Also published as: CN115707341A

Abstract

The present application relates to the technical field of stylus pens, and provides a stylus pen, an intelligent interactive panel and intelligent blackboard having the stylus pen, and an interactive operation method based on the stylus pen. The stylus pen specifically comprises a pen body; two opposite ends of the pen body in the length direction thereof are respectively provided with a first writing portion and an abutting portion; the cross-sectional area of the first writing portion gradually increases from the end of the first writing portion distant from the pen body to the end of the first writing portion close to the pen body, so that the touch projection area can be changed; the abutting portion is used for abutting against the palm as a support when a user holds the stylus pen; the length of the pen body is 50-100 mm. Thus, the stylus pen is closer to an educational scene, and brings better holding and writing experience to users. Moreover, the above-mentioned interactive operation method can be used to distinguish different function types according to different touch projection areas, so as to provide more realistic writing experience for users, and repeated setting operations when the users want to implement other writing functions during writing are avoided, thereby improving user experience.

Description

A writing pen, an intelligent interactive tablet, a smart blackboard, and an interactive operation method based on the writing pen

technical field

The present application relates to the technical field of writing pens, in particular to a writing pen, an intelligent interactive tablet, a smart blackboard and an interactive operation method based on the writing pen.

Background technique

The writing pen is a pen-shaped tool used to input commands to computer screens, mobile devices, drawing tablets and other devices with touch screens. Users can use the writing pen to operate on the touch screen to control the system content on the touch screen, draw or write, etc. operate.

At present, the shape of the writing pen matched with the large-screen products with touch writing on the market is usually similar to the shape of pens, fountain pens, markers and other pens that are used for daily writing on paper. In the process of realizing the invention, the inventor found that the posture of holding the writing pen with the hand when people use it is consistent with the holding posture of people’s daily writing on paper. When using the writing pen to operate the intelligent interactive tablet in the educational scene , people are not comfortable with the shape and structure of the writing pen, especially when used by teachers, the current pen shape similar to writing on paper will lead to poor grip experience, and it is difficult to provide a more comfortable writing experience.

Contents of the invention

One of the purposes of the embodiments of the present application is to provide a writing pen, the body of which is arranged in a structure more suitable for writing on a blackboard, so that it can solve the above-mentioned problems in the related art.

The second purpose of the embodiment of the present application is to provide an intelligent interactive tablet, the infrared touch screen cooperates with the writing pen suitable for holding blackboard writing, so as to improve user experience and comfort.

The third purpose of the embodiment of the present application is to provide an intelligent interactive tablet, with a capacitive touch screen and a writing pen suitable for holding blackboard writing, so as to improve user experience and comfort.

The fourth purpose of the embodiments of the present application is to provide a smart blackboard, which is equipped with a writing pen suitable for holding blackboard writing, so as to improve the user's comfort in the teaching process.

The fifth purpose of the embodiments of the present application is to provide a writing pen-based interactive operation method, which solves the problem of complex operation modes for switching between different writing functions in the related art, and improves user experience.

In order to achieve one of the above-mentioned purposes, the application adopts the following technical solutions:

A writing pen is provided, comprising a pen body, a first writing part and a top, the pen body extends linearly along its length direction, the pen body has two ends, and one end of the pen body is provided with a first writing part, The other end of the pen body is provided with an abutment, and the cross-sectional area of the first writing part is gradually increased from the end of the first writing part away from the pen body to the end of the first writing part close to the pen body. Increase, the length of the pen body is 50-100mm, and the abutting portion is used to abut against the palm of the user as a support.

In order to achieve the above-mentioned purpose two, the application adopts the following technical solutions:

An intelligent interactive panel is provided, including a touch screen and the above-mentioned writing pen, one side of the display surface of the touch screen is provided with a detection line for detecting the touch projection area, by changing the writing pen and the detection The relative angle or distance of the lines, so that the touch projection area of the writing pen increases or decreases.

In order to achieve the above-mentioned purpose three, the application adopts the following technical solutions:

An intelligent interactive tablet is provided, including a touch screen and the above-mentioned writing pen, the touch screen includes a capacitive layer for detecting a touch projection area, and by changing the contact area between the writing pen and the touch screen, To increase or decrease the touch projected area of the writing pen.

In order to achieve the above-mentioned purpose four, the application adopts the following technical solutions:

A smart blackboard is provided, comprising a main screen, a secondary screen and the above-mentioned writing pen, the secondary screen is spliced and arranged on one side of the main screen, the main screen is an intelligent interactive flat panel, the secondary screen is a blackboard, and the writing pen is used Perform touch operations on the main screen.

In order to achieve the fifth of the above-mentioned purposes, the application adopts the following technical solutions:

An interactive operation method based on a writing pen, applied to an interactive tablet, the interactive tablet includes a writing pen, a display screen and a touch sensor module, and the writing pen includes a first writing part, a second writing part and an erasing part part, the first writing part and the second writing part are arranged at both ends of the writing pen, the erasing part is arranged on the side of the writing pen, and the touch of the second writing part The projected area is larger than the touch projected area of the first writing part, the touch projected area of the erasing part is larger than the touch projected area of the first writing part or the second writing part, and the method includes The touch sensing module detects the first touch information of the touch operation performed by the first writing part on the display screen, and the first touch information includes one or more touch coordinate information; according to the The first touch information determines the first touch projected area information, and according to the first touch projected area information, it is determined that the sign of the writing pen corresponding to the touch operation is a first sign, and the first sign and The fine pen writing function or the first color function of the interactive tablet is associated; according to the first identification, the fine pen writing function or the first color writing function is executed on the display screen and the fine pen writing track or the first color writing function is displayed A color writing track; the touch sensor module detects the second touch information that the second writing part performs a touch operation on the display screen, and the second touch information includes one or more touch control coordinate information; determine second touch projected area information according to the second touch information, determine the mark of the writing pen corresponding to the touch operation as the second mark according to the second touch projected area information, The second identification is associated with the writing function with thick pen or the second color writing function of the interactive tablet; according to the second identification, the writing function with thick pen or the second color writing function is executed on the display screen and Displaying the writing track of a thick pen or the writing track of a second color; the touch sensor module detects the third touch information of the touch operation performed by the erasing part on the display screen, and the third touch information Include one or more touch coordinate information; determine third touch projected area information according to the third touch information, determine the writing pen corresponding to the touch operation according to the third touch projected area information The identification is a third identification, and the third identification is associated with the erasing function of the interactive panel; according to the third identification, the erasing function is executed on the display screen and an erasing track is displayed.

The beneficial effects of the present application are: the writing pen described in this scheme is set to a structure suitable for the user to write with the writing on the blackboard, so that the structure of the writing pen matches the state when the writing on the palm of the hand is held, so that it can It is close to the educational scene and brings users a better grip and writing experience. When the user uses the writing pen, there will be no interference between the body of the pen and the user's palm, specifically the position of the tiger's mouth, and it can further lean against the tiger's mouth. Thereby reducing user writing fatigue;

When the writing pen is used in the smart interactive tablet or smart blackboard, the user can change the writing angle and distance between the writing pen and the touch screen or the main screen, so that the smart interactive tablet and smart blackboard can be used according to different touch projection areas. To achieve different writing functions, such as different handwriting colors and strokes of different thicknesses, etc., so as to improve user experience and make it easier for teachers and users to use different writing functions to cooperate with teaching;

Using the above-mentioned interactive operation method based on the writing pen, different function types are distinguished according to the first writing part, the second writing part and the erasing part, and the corresponding writing function or erasing function is matched according to the touch projection area to generate and touch projection The highly fitting writing function and erasing function provide users with a more realistic writing experience, preventing users from wanting to realize other writing functions during the writing process, and repeatedly performing setting operations to improve user experience.

Description of drawings

The present application will be described in further detail below according to the drawings and embodiments.

Fig. 1 is a schematic diagram of the holding state of the writing pen described in Embodiment 1 of the present application;

Fig. 2 is a schematic diagram of the holding state of the writing pen described in Embodiment 2 of the present application;

Fig. 3 is a schematic diagram of the dynamic change of the touch projection surface of the writing pen located on the writing surface of the intelligent interactive tablet according to the embodiment of the present application;

Fig. 4 is an axonometric view of the writing pen structure described in Embodiment 1 of the present application;

Fig. 5 is a side view of the structure of the writing pen according to Embodiment 1 of the present application;

Fig. 6 is a front view of the structure of the writing pen described in Embodiment 1 of the present application;

Fig. 7 is a top view of the structure of the writing pen described in Embodiment 1 of the present application;

Fig. 8 is a two-dimensional view of the structure of the writing pen described in Embodiment 1 of the present application;

Fig. 9 is two side views of the structure of the writing pen described in Embodiment 1 of the present application;

Fig. 10 is the second front view of the structure of the writing pen described in Embodiment 1 of the present application;

Fig. 11 is two top views of the structure of the writing pen described in Embodiment 1 of the present application;

Figure 12 is one of the triaxial views of the writing pen structure described in Embodiment 1 of the present application;

Fig. 13 is three top views of the structure of the writing pen described in Embodiment 1 of the present application;

Fig. 14 is the second axonometric view of the writing pen structure described in the first embodiment of the present application;

Fig. 15 is an axonometric view of the structure of the writing pen described in Embodiment 2 of the present application;

Fig. 16 is a side view of the structure of the writing pen described in Embodiment 2 of the present application;

Fig. 17 is one of the two axonometric views of the writing pen structure described in Embodiment 2 of the present application;

Fig. 18 is the second axonometric view of the structure of the writing pen described in the second embodiment of the present application;

Fig. 19 is a second exploded view of the structure of the writing pen described in the second embodiment of the present application.

In the figure: 10, pen body; 111, first writing part; 112, inclined surface; 1111, first writing surface; 1112, second writing surface; 1113, arc transition surface; 12, grip part; 131, the first 2. Writing part; 14. Reaching the top; 141. Erasing part; 15. Page turning function module; 151. Up page turning key; 152. Down page turning key; 16. Erasing part; 161. Wiping surface; 162. Friction slice; 20, index finger; 30, thumb; 40, middle finger; 50, tiger's mouth.

Detailed ways

In order to make the technical problems solved by this application, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the application are described in detail below. Obviously, the described embodiments are only part of the embodiments of the application. rather than all examples. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of this application.

In the description of this application, unless otherwise clearly stipulated and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral body; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be an internal communication between two components or an interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application in specific situations.

In this application, unless otherwise expressly specified and limited, a first feature being "on" or "under" a second feature may include direct contact between the first and second features, and may also include the first and second features Not in direct contact but through another characteristic contact between them. Moreover, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Below", "beneath" and "under" the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

As shown in Figure 4-Figure 19, in order to allow the writing pen to provide users with a better grip and writing experience when writing with an intelligent interactive tablet, this embodiment provides a writing pen, which includes a support for the writing pen The pen body 10 of the main body, the pen body 10 has two ends along its length direction, one end of the pen body 10 is provided with a first writing part 111, and the other end of the pen body 10 is far away from the first writing part 111 along its length direction One end is provided with abutment 14, and a nib part is formed at the end of the first writing part 111. In order to match the user's holding method, the pen body 10 is closer to the structure of the traditional pen body 10. The first writing part 111 The cross-sectional area gradually increases from the end of the first writing part 111 away from the pen body, that is, the end of the nib toward the end of the first writing part 111 close to the pen body 10, and the length of the pen body 10 is 50-100mm, which can be 90mm, of course It can also be a length of 50mm, 60mm, 70mm, 80mm, 100mm and any length between any of the above-mentioned adjacent dimensions. The specific length can be determined according to the user's hand shape, hand size, gripping habits and writing habits. Certainly, in the embodiment, the pen body 10 can also be set as a telescopic structure, specifically, the pen body 10 can be set as at least two pen body 10 structures that are nested with each other and can move back and forth in the directions of approaching and moving away from each other. The telescoping range is between 50-100mm, and a positioning structure capable of fixing the pen bodies 10 to each other is provided between any adjacent two pen bodies 10, so as to ensure that the length of the pen bodies 10 can be kept at the corresponding position after adjustment. The length of the pen remains unchanged, so that users can adjust it according to their own holding habits and writing habits when holding the writing pen, further improving the user's writing experience.

In order to improve the versatility of the structure of the writing pen in this embodiment, so that it can meet the needs of intelligent interactive flat screens with different touch principles, the first writing part 111 can be provided with corresponding touch components according to the matching screen touch principles.

At present, the more commonly used smart interactive panels include capacitive touch screens and infrared touch screens;

Capacitive touch screen is also called capacitive touch screen, and its principle is to use the current induction of human body or capacitive pen to work. The capacitive touch screen is a four-layer composite glass screen. The inner surface and interlayer of the glass screen are each coated with a layer of ITO. The outermost layer is a thin layer of silica glass protective layer. The interlayer ITO coating is used as the working surface. Four electrodes, the inner ITO is the shielding layer to ensure a good working environment. When the capacitive pen touches the metal layer, a coupling capacitor is formed between the capacitive pen and the surface of the touch screen. For high-frequency current, the capacitor is a direct conductor, so the capacitive pen absorbs a small current from the contact point. This current flows out of the electrodes on the four corners of the touch screen respectively, and the current flowing through these four electrodes is proportional to the distance from the finger to the four corners. The controller obtains the position of the touch point through accurate calculation of the four current ratios. .

The infrared technology touch screen (Infrared Touch Screen Technology) is composed of infrared emitting and receiving sensing elements installed on the outer frame of the touch screen. On the surface of the screen, an infrared detection network is formed. Any touching object can change the infrared on the contact to realize the touch screen. operate. The realization principle of the infrared touch screen is similar to that of the surface acoustic wave touch screen, which uses infrared emitting and receiving sensing elements. These elements form an infrared detection network on the surface of the screen, and touch-operated objects (such as writing pens) can change the infrared rays of the contacts, which are then converted into the coordinates of the touch to realize the response of the operation. On the infrared touch screen, the circuit board devices arranged on the four sides of the screen have infrared emitting tubes and infrared receiving tubes, correspondingly forming an infrared matrix that crosses horizontally and vertically.

When the touch screen is a capacitive screen, the first writing part 111 includes a capacitive module capable of realizing capacitive touch on the capacitive screen;

In the case that the touch screen is an infrared touch screen, the first writing part 111 can be set as a material that enables the infrared sensing module of the infrared touch screen to realize infrared sensing, such as using a PE sintering process; the first writing part 111 can also be provided with When the capacitor module is connected, the power supply that provides power to the capacitor module can be turned off, so that it can write on the infrared touch screen.

In the embodiment, the material of the first writing part 111 is not limited. In the scheme of being used as a capacitive pen for a capacitive screen or for an infrared touch screen, the first writing part 111 can be formed by PE sintering process, and the pen body 10 and the first The writing part 111 is integrally formed to ensure the integrity of the writing pen and improve the user's gripping and writing experience. Of course, the pen body 10 and the first writing part 111 can also be arranged separately, so as to facilitate the replacement of the first writing part 111 and/or the second writing part 131 .

Moreover, when used as a capacitive pen, the pen body 10 is also provided with a PCB, a battery assembly, and a wireless charging module, wherein the PCB is a printed circuit board, and the PCB is electrically connected to the capacitive module, which includes a control circuit. The specific details of the control circuit The structure can be set according to the actual situation. The wireless charging module is electrically connected to the battery assembly. Correspondingly, the battery assembly supplies power to the capacitor module, which can be a columnar lithium battery and is arranged inside the pen body 10. Charging, and sticking to the inner wall of the pen body 10, the part or the whole of the pen body 10 opposite to the wireless charging module can be set as a conductive material, when the pen body 10 is placed on the screen or the wireless charging board of the desktop, it can provide the to charge.

The specific structure of the capacitive module used as a capacitive pen is a conventional technique in the art, and this embodiment will not elaborate further here.

As shown in Figure 3, when the writing pen of this embodiment is used for an infrared touch screen, the projection area where the first writing part 111 or the second writing part 131 can form an orthographic projection on the touch screen is the touch projection area. The thickness, color and writing function of the handwriting can be judged according to the touch projected area formed by the writing pen on the writing surface. The first writing part 111 and the second writing part 131 block the detection line on the infrared touch screen, so as to determine the range of the touch projection area according to the area formed by the detection line being blocked.

Similarly, when the writing pen of this embodiment is used for a capacitive touch screen, the first writing part 111 and the second writing part 131 change the contact area of the writing surface of the capacitive touch screen according to the size of the contact surface area. Judging the range of the touch projection area, regardless of whether it is an infrared touch screen or a capacitive touch screen, the touch can be changed by changing the distance and relative angle between the first writing part 111 and the second writing part 131 and the corresponding screen writing surface. The extent of the projected area.

Specifically, the periphery of the pen body 10 in this embodiment is formed with a gripping portion 12 for the user to grip, and the gripping portion 12 is specifically arranged at one end of the pen body 10 close to the first writing portion 111, while the abutting portion 14 is used to In the state of being held by the user, it leans against the user's palm as a support, specifically against the tiger's mouth 50 of the palm, which can reduce the degree of fatigue during the writing process.

When the user is using the smart interactive tablet, the smart interactive tablet is generally hung on the wall or supported on a stand in a nearly vertical state, so that the length of the pen body 10 is more suitable for the holding posture of the user's writing hand, which is convenient for touch Control the screen for manipulation and writing.

As shown in Figures 1-2, when the user is holding the writing pen of this embodiment, the user can hold the pen body 10 by the index finger 20 and the thumb 30, respectively, which are formed on the opposite sides of the pen body 10. On the grip part 12, put the side of the middle finger 40 against the side of the pen body 10, and put the position of the tiger's mouth 50 against the top 14 to make the grip more stable. The grip part 12 is located at the end of the pen body 10 close to the first writing part 111 or the second writing part 131 of the pen body 10 described later. The width of the holding portion 12 of the example is 8-18mm, specifically divided into 8-11mm and 15-18mm, which can be respectively 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm Any width and any width size between any of the above-mentioned adjacent sizes, the specific length can be determined according to the user's hand shape, hand size, gripping habits and writing habits, matching the width of the domestic user's finger tiger mouth 50 and thumb 30 The straight distance from the index finger 20 makes the grip of the pen body 10 more comfortable and natural.

As shown in Figures 4-14, the cross-sectional area of the pen body 10 gradually narrows from the end far away from the first writing part 111 toward the end close to the first writing part 111. Under this structure, the length of the pen body 10 can be 90mm, and it is easy to hold The portion 12 width may be 10.5 mm. The pen body 10 and the first writing part 111 are preferably molded by PE sintering process so that they are integrally formed. PE is a thermoplastic resin obtained by polymerization of ethylene. In industry, it also includes copolymers of ethylene and a small amount of α-olefins. Polyethylene is odorless, non-toxic, and feels like wax. In the specific processing process, the pen body 10 of the writing pen can be processed into a frosted surface, which increases the friction between the user and the pen body 10 when holding it, and has excellent durability. Low temperature performance (the lowest operating temperature can reach -100～-70°C), good chemical stability, and can resist most acids and alkalis (not resistant to acids with oxidizing properties). Insoluble in common solvents at room temperature, low water absorption, excellent electrical insulation. The PE material has a wide range of molecular weights, and the roughness, hardness, and impact sound of the pen tip can be adjusted through the mutual matching of different molecular weights, sintering temperature, and sintering time.

Of course, as mentioned above, in order to facilitate the replacement of the nib, allowing it to replace the nib structure with different writing experiences, the first writing part 111 and/or the second writing part 131 and the pen body 10 can also be arranged to be detachably connected. structure, the second writing part 131 is detachably arranged on the abutment part 14 .

As shown in Figures 12-14, the pen body 10 is provided with a second writing part 131 along the end of the pen body 10 along its length direction away from the first writing part 111, and the second writing part 131 is on the touch screen, specifically the touch projection of the intelligent interactive tablet The surface is larger than the first writing part 111 . The smart interactive tablet usually has a two-color writing function for writing handwriting in two colors or more than two different colors, and a thick and thin pen writing function with thick and thin handwriting. The writing pen realizes different writing functions through the touch projection area formed by the distance/contact area with the smart interactive tablet, but because the shape of the first writing part 111 of the writing pen is fixed, the recognition is often inaccurate. The touch projected area of the second writing part 131 is larger than the touch projected area of the first writing part 111 to realize the two-color and/or thick and thin pen functions of the first writing part 111 and the second writing part 131 write. In this embodiment, by setting the first writing part 111 and the second writing part 131 with different touch projection areas on the smart interactive tablet, the function recognition of the two-color and/or thick and thin pens is greatly improved.

As shown in Figure 3, the touch projection surface described in the embodiment is that when the first writing part 111 and the second writing part 131 are used on the infrared touch screen, the first writing part 111 and the second writing part 131 pair The area cut by the algorithm detection line o1 of the infrared touch screen is the touch projection area, that is, the first writing part 111 and the second writing part 131 can block the algorithm detection line emitted by the infrared touch module of the infrared touch screen The range of o1. The second writing part 131 is arranged on the touch screen, specifically the touch projection surface of the intelligent interactive flat panel, to be larger than the structure of the first writing part 111, so that pen heads of different thicknesses (different touch ranges) can be arranged on the same pen body 10, In order to improve the recognition accuracy of double-pen and double-color, through the algorithm support of software, the touch projection area range of different intervals is set to functions such as strokes of different colors, pencil erasing, and whitewashing, so that the writing pen of this embodiment can realize more functions. The unique touch function also allows the writing pen to selectively use pen tips of different thicknesses according to the needs of users.

In addition, as shown in Figures 15-19, the pen body 10 has a flat structure similar to a cuboid, and the opposite side surfaces of the pen body 10 form gripping parts 12 parallel to each other. Under this structure, the width of the gripping part 12 can be 15mm, and its holding method is similar to that described in Embodiment 1. Moreover, in the embodiment, the first writing part 111 and/or the second writing part 131 can be detachably connected with the pen body 10, of course, it can also be integrally formed as in the first embodiment.

On the basis of the detachable connection between the first writing part 111 and/or the second writing part 131 and the pen body 10, the material of the pen body 10 can be PC/ABS material, and the surface includes a layer of TPU plastic material through an overmolding process, The grip of the pen body 10 is made softer and more comfortable, and at the same time, it can also provide users with better grip friction. The material of the first writing part 111 and/or the second writing part 131 is also PE sintered material.

As shown in Figures 15-16, the pen body 10 is provided with a second writing part 131 at one end away from the first writing part 111 along its length direction, and a second writing part 131 is formed at the end of the second writing part 131. The touch projection surface of the writing part 131 on the touch screen, specifically the smart interactive tablet, is larger than that of the first writing part 111, and its specific principle is consistent with that of the second writing part 131 in the first embodiment.

As shown in Figures 17-19, an erasing piece 141 is formed at the end of the top 14, and the touch projection surface of the erasing piece 141 on the touch screen of the intelligent interactive flat panel is larger than the first writing part 111. The algorithm support of the screen can identify different contact surfaces, so that different contact surfaces can realize different functions. The erasing part 141 described in the embodiment is used to realize the writing and erasing function similar to a pen erasing, and in order to avoid The writing surface of the touch screen is destroyed, and the surface of the erasing member 141 is set as a curved surface, so as to effectively protect the screen, and when the user holds the pen body 10, the erasing member 141 of the curved surface structure will not damage the writing surface of the touch screen. User Hukou50 caused discomfort.

In order to make the writing pen suitable for touch screens with different touch principles, the erasing member 141 can realize infrared touch on the infrared touch screen, while on the capacitive screen, it is impossible to realize different touch screens by judging the touch projection area between the writing pen and the screen. Touch function, but the function that the writing pen is using can be realized by the pressure of the writing pen on the screen. Of course, if the erasing part 141 needs to implement the touch function on the capacitive screen, the erasing part 141 needs to be provided with a second capacitive module.

Of course, when used as an electromagnetic pen or a capacitive pen, the erasing member 141 can also share the first capacitive module with the first writing part 111 .

In the embodiment, it also includes a page turning function module 15, the page turning function module 15 is embedded in the pen body 10, the page turning function module 15 is embedded on the pen body 10 between the grip part 12 and the abutment 14, and the page turning The function module 15 establishes a communication connection with the touch screen through the RF radio frequency remote control function circuit, and is specifically arranged on the plane structure where the grip part 12 is located. The page turning function module 15 includes a page up key 151 and a page down key 152 , the page up and down key 152 can be used to perform page up and down operations on the document in PPT or EasyMeeting.

In the embodiment, also comprise erasing part 16, erasing part 16 is arranged on pen body 10 and extends along the length direction of pen body 10, and erasing part 16 surface is formed with wiping surface 161, and the contact surface of wiping surface 161 is larger than first. Writing part 111, under the situation that wiping surface 161 and erasing member 141 exist together, the contact surface of wiping surface 161 is greater than erasing member 141, and, wiping surface 161 is planar structure, and its extension direction and the longitudinal direction of pen body 10 Consistently, the wiping surface in this example protrudes from the pen body 10 to form a rectangular parallelepiped structure. With the support of algorithms, it can realize the pen wiping function on the touch screen, realize the precise erasing of large screens, or tend to paint The function of filling the color, through the protruding structure, allows the erasing part 16 to form a certain stretch height on the pen body 10, which can greatly improve the recognition accuracy of this function and improve the usability of the user.

Further, the wiping surface 161 is pasted with a friction sheet 162, and the friction sheet 162 can be made of felt material, so that the contact between the erasing part 16 of the pen body 10 and the writing surface of the touch screen is changed from a hard contact to a flexible contact, and the erasing part can be improved at the same time. 16 and the writing surface of the touch screen when wiping the friction and sliding smoothness, and the writing surface of the touch screen can also be processed into a frosted surface similar to the traditional blackboard, so that the experience of erasing part 16 when painting is closer Regular True Erase section effect.

The erasing part 16 includes a third capacitive module capable of realizing capacitive sensing on the capacitive screen, and the erasing part 16 can also realize infrared touch in the infrared touch screen. The principle is the same as the touch principle of the first writing part 111 .

Of course, when used as a capacitive pen, the erasing part 16 can also share the first capacitive module with the first writing part 111 .

On the basis of the above scheme, the first writing part 111 and/or the second writing part 131 include various structures. In the embodiment, the first writing part 111 is used as an example for illustration. As shown, the first writing part in the embodiment The cross-sectional area of the portion 111 gradually expands from the first writing portion 111 toward the end close to the pen body 10, so that the user can change the distance between the first writing portion 111 and the writing surface of the infrared touch screen by changing the angle at which the writing pen is held during the writing process. Of course, if the cross-sectional area of the first writing part 111 in the length direction is uniform, it can also achieve the above-mentioned effect of increasing the touch projection surface by changing the angle, but the structure of gradually expanding the cross-sectional area can make The user has a better sense of transition when changing the angle of the pen body 10 during the writing process.

As shown in Figures 4-7, an inclined surface 112 is formed on one side of the first writing part 111, and the inclined surface 112 is inclined outward from the end close to the first writing part 111 to the end close to the pen body 10, and from the end close to the pen body 10. One end of the central axis o2 facing away from the central axis o2 of the pen body 10 is referred to as outward, which is approached; the inclined surface 112 is at least partly arranged on one side of the first writing part 111, and the first writing part 111 includes a first The writing surface 1111 and a plurality of second writing surfaces 1112 connected to the first writing surface 1111 , an obtuse angle is formed between the second writing surface 1112 and the first writing surface 1111 , and between any two adjacent second writing surfaces 1112 . Specifically, the first writing surface 1111 and the second writing surface 1112 are arranged on the first writing part 111, and the first writing surface 1111 and the second writing surface 1112 are different in size, thereby forming a plurality of cut surfaces with different areas, When the user uses the writing pen to perform writing operations on the screen, the first writing surface 1111 and the second writing surface 1112 set at different angles and areas are in contact with the screen to achieve writing operations with different frictional forces, which improves the user experience. Comfortable operation, smart interactive flat panel and smart blackboard can also judge the current writing function according to the user's current practical writing surface, so as to judge the current writing function according to the touch projection area or contact area.

Of course, the number, area and relative relationship of the first writing surface 111 and the second writing surface 1112 are not limited to the above scheme, so that the user can obtain an optimal writing experience according to different writing surfaces.

As shown in Figures 8-11, the first writing part 111 is a slope structure inclined to the central axis o2 of the pen body 10; a circular arc transition surface 1113 is provided between the first writing part 111 and the pen body 10, so that the first The writing part 111 is in the shape of a lipstick head. By rotating the pen body 10, the function of changing the touch projection surface of different nibs on the touch screen can be realized.

As shown in Figures 12-14, the first writing part 111 is a curved surface, which makes the contact with the writing surface more smooth during the writing process. In this structure, a second writing part 131 can be provided at the other end of the pen body 10, The above-mentioned function of changing the double pen and double color of the touch projection surface on the touch screen is realized by two pen tips with different cross-sectional areas.

By implementing the above-mentioned technical scheme, the structure of the writing pen can be close to the educational scene, and a better grip and writing experience can be brought to the user; Fatigue, provide more writing cross-sections, and increase product audience; by adjusting the PE foam material, provide a writing feeling closer to ordinary blackboard writing; combine erasing function, page presenter and other high-frequency functions used by teachers and users In the pen body 10, the convenience of teaching is greatly improved, and the situation that the teacher and the user directly touch the touch screen is avoided.

As shown in Figure 3, this embodiment also provides an intelligent interactive panel, including the above-mentioned stylus structure, the intelligent interactive panel also includes a touch screen, the touch screen can be used by the user for touch operation, on the outer surface of the display screen Algorithm detection line o1 for detecting the touch projection surface is set on the top, and through the above-mentioned different pen head structures, the relative angle between the pen body 10 and the writing surface is changed, so that the first writing part 111 and/or the second writing part 131 The algorithm detects that the touch projection surface on the line o1 increases or decreases. Cooperate with the writing pen structure to further improve the user's writing experience.

This embodiment also provides a smart blackboard, a smart interactive flat panel, including the above-mentioned writing pen structure, the smart interactive flat panel also includes a touch screen, the touch screen can be used for touch operation by the user, and the touch screen includes a The capacitive layer that detects the touch projection area, by changing the contact area between the first writing part 111 and/or the second writing part 13 and the touch screen, so that the touch projection area of the first writing part increases or decrease.

This embodiment also provides a smart blackboard, which includes a main screen, a secondary screen and the above-mentioned writing pen. The secondary screens are spliced and arranged on one side of the main screen, wherein there can be one or more secondary screens. Specifically, the secondary screen can use an ordinary writing blackboard, or an electronic blackboard equipped with a touch function. The main screen is an intelligent interactive flat panel. Through the above-mentioned writing pen, users of the smart blackboard, such as teachers, can improve their writing comfort.

According to the solution provided above, this embodiment also provides a method for interactive operation of a technical writing pen, which can be executed by an interactive tablet with a touch function. The interactive panel can operate the content displayed on the display screen and realize human-computer interaction through touch technology. The display screen is the above-mentioned infrared touch screen or capacitive touch screen, which can integrate a projector, whiteboard, curtain, audio One or more functions such as TV, video conferencing terminal, etc., interactive flat panel also includes smart blackboard for teaching. In practical application, the hardware part of the interactive panel is composed of display screen and intelligent processing system, which are combined by integral structural parts and supported by a dedicated software system, in which the display screen has a touch function. The user can touch the display screen with a writing pen, and the intelligent processing system generates handwriting according to the touch operation input by the user and displays it on the display screen, or generates a control operation according to the touch operation input by the user to process the display screen Display content.

Typically, the interactive tablet is installed with at least one type of operating system, wherein the operating system includes but not limited to Android system, Hongmeng system, Linux system and Windows system. The touch operation received through the display screen is processed through the operating system. Specifically, the interactive tablet may install at least one application program based on the operating system, for example, a whiteboard application is installed in the interactive tablet. Wherein, the whiteboard may be an application program provided by the operating system, or an application program downloaded from a third-party device or server. A whiteboard application refers to an application for users to perform operations such as writing and displaying. It can be used to generate handwriting according to the user's writing operations on the interface of the whiteboard application, and can also be used to insert and display multimedia elements on the interface of the whiteboard application. The multimedia elements May include graphs, images, tables, documents, audio files and/or video files. In the interface of the whiteboard application, users can implement operations such as writing, drawing, and erasing similar to the physical blackboard, and further have better digital functions such as moving, saving, zooming, inserting pictures, color adjustment, and stroke thickness settings. In practical applications, the whiteboard application can also be named as writing application, electronic whiteboard application, collaborative whiteboard application, etc. No matter how the name is changed, as long as the application is used to realize the above functions, it is equivalent to the whiteboard application in this application. In the embodiment, the handwriting processing method is executed by the whiteboard application, and the display screen displays the interface of the whiteboard application, and the user can perform touch operation on the whiteboard application interface in the display screen with a finger or a stylus, and the intelligent processing system according to the touch input by the user The control operation generates handwriting and displays it in the whiteboard application interface, or generates a control operation according to the touch operation input by the user to process the displayed content in the whiteboard application interface.

The interactive operation method based on the writing pen in this embodiment is applied to the interactive tablet, the writing pen, the display screen and the touch sensor module, and the writing pen includes the above-mentioned pen body 10, the first writing part 111, and the second writing part 131 And erasing part 16, the first writing part 111 and the second writing part 131 are arranged on the two ends of writing pen body 10, and erasing part 16 is arranged on the side of writing pen body 10, and the second writing part 131 The touch projected area is larger than the touch projected area of the first writing part 111 , and the touch projected area of the erasing part 16 is larger than the touch projected area of the first writing part 111 or the second writing part 131 . Specifically, the method includes:

S110. The touch sensing module detects first touch information of the touch operation performed by the first writing part 1111 on the display screen, where the first touch information includes one or more touch coordinate information;

Determine the first touch projected area information according to the first touch information, determine the mark of the writing pen corresponding to the touch operation as the first mark according to the first touch projected area information, and the first mark is related to the fine pen writing on the interactive panel function or primary color function association;

S120. According to the first identification, execute the fine pen writing function or the first color writing function on the display screen and display the fine pen writing track or the first color writing track;

S130. The touch sensing module detects second touch information that the second writing part 131 performs a touch operation on the display screen, and the second touch information includes one or more touch coordinate information;

Determine the second touch projected area information according to the second touch information, determine the mark of the writing pen corresponding to the touch operation as the second mark according to the second touch projected area information, and the second mark is related to the thick pen writing function of the interactive panel or Second color writing function association;

S140. According to the second identification, execute the thick pen writing function or the second color writing function on the display screen and display the thick pen writing track or the second color writing track;

S150. The touch sensor module detects the third touch information that the erasing unit 16 performs a touch operation on the display screen, and the third touch information includes one or more touch coordinate information;

Determine the third touch projected area information according to the third touch information, and determine the mark of the writing pen corresponding to the touch operation as the third mark according to the third touch projected area information;

S160. According to the third identification, perform an erasing function on the display screen and display an erasing track.

Wherein, steps S110, S130, and S150 are parallel method steps, and there is no sequence relationship among them.

Exemplarily, when a user uses a stylus to input a writing operation on the display screen, the touch sensing module installed on the display screen detects the touch information of the writing operation input by the user, and sends the touch information to the interactive panel handler to tell the handler to process the writing operation.

Wherein, the touch track information includes the contact area, the touch projection area, the moving speed, the moving acceleration, the contact position and/or the contact pressure sensitivity when the writing pen touches the display screen. Among them, the contact area, touch projected area, moving speed, moving acceleration and contact position are measured by optical touch sensors installed on both sides of the display surface, or by determining the touch position based on a capacitive touch screen. Taking the infrared touch screen as an example, when the writing pen touches or approaches the display screen, the optical touch sensor scans the touch part of the writing pen through the light signal to sense the operation of the writing pen on the display screen. Specifically, the optical touch sensor includes an infrared emitter and an infrared receiver. The infrared emitter is used to emit infrared light, and the infrared receiver is used to receive infrared light. The densely distributed infrared light in different directions forms a beam grid to locate the touch point. Exemplarily, M infrared emitters are arranged on one side of the display screen in the horizontal direction, and N infrared emitters are arranged on one side of the vertical direction. Correspondingly, M infrared receivers are arranged on the other side of the horizontal direction, and N infrared receivers are arranged on the other side of the vertical direction. An infrared receiver, the infrared transmitter emits infrared light at a certain frequency, and the corresponding infrared receiver receives infrared light at a certain frequency. When the writing pen touches the display screen, the writing pen will completely or partially block one or more vertical and horizontal infrared lights, and then obtain a M*N infrared light intensity pixel map, which is the above-mentioned touch projection area. First, find a position on the infrared light intensity pixel map that is greater than the first light intensity threshold. The first light intensity threshold indicates a real and effective touch, not noise or when an object is close to but not fully touched when the infrared light is partially blocked. The light intensity, the real touch position is the contact position when the writing pen is in contact with the display screen. Specifically, find a position greater than the second light intensity threshold in the adjacent area of the real touch position, and the second light intensity threshold is greater than the noise value, which can represent the extension of the real touch area, and set the position greater than the second light intensity threshold in the adjacent area of the real touch position to The position of the second light intensity threshold is marked as an effective touch area, and the area of the touch area is the contact area between the writing pen and the screen cover. When the writing pen moves on the display screen, the contact position and touch projection area of the writing pen on the display screen are recorded in the multi-frame time continuous infrared light intensity pixel map, and the contact position and touch projection area recorded in the continuous frames The moving speed of the writing pen on the screen cover can be obtained, and the moving acceleration can be further calculated according to the moving speed. When the writing pen leaves the display screen, the shielding of the infrared light by the writing pen becomes smaller. If the contact position in the last frame of infrared light intensity pixel map, the relative position in the current infrared light intensity pixel map and the adjacent area do not exceed For the pixels of the third light intensity threshold, it is determined that the relationship between the touching object and the screen cover at this time is out of touch, and the third light intensity threshold represents the maximum light intensity when out of touch.

In addition, the touch track information also includes contact pressure when the writing pen touches the interactive tablet. The contact pressure is the pressure of the touch object on the display screen, and the contact pressure is measured by the pressure sensor when the writing pen touches the display screen.

The touch projected area information in the touch information is extracted, and the mark of the writing pen is determined according to the touch projected area information.

Specifically, by extracting the touch projected area information in the touch information, the touch control projected area information is used as input, and the machine learning model is used to output the marking of the writing pen, and the corresponding relationship between the markings of the writing pen set in advance, such as the first The writing part 111 and the second writing pen 131 realize handwriting functions of different colors and thicknesses according to different touch projected area information. The writing function corresponding to the corresponding area information is determined.

According to the identification of the writing pen, determine the function type corresponding to the current touch projection area information, and execute the corresponding writing function on the display screen according to the function type and touch track information.

Exemplarily, after the identification of the writing pen that the user writes on the screen is determined, the function type of the current touch part of the writing pen is determined through the identification of the preset touch projection area information, and according to the preset function type and touch Control track information to further determine the corresponding writing function or erasing function to be realized by the writing pen on the display screen.

For example, if it is recognized that the current touch part is the first writing part 111, and the touch projection area of the first writing part 111 is preset to correspond to the red handwriting, then the handwriting of the function type is determined to be the red handwriting, or the first writing part 111 is preset. If the part 111 is set to a thinner handwriting, then the handwriting of the determined function type is a fine handwriting writing function. If the current touch part is recognized as the second writing part 131, and the touch projection area of the second writing part 131 is preset to correspond to If the handwriting is blue, then the writing handwriting of the determined function type is blue handwriting, or the second writing part 131 is set in advance to be thicker than the first writing part 111, then the handwriting of the determined function type is a thick handwriting writing function, if It is recognized that the current touch position is the erasing part 141, and the touch projection area of the preset erasing part 141 corresponds to the small-scale erasing function, then the handwriting of the function type is determined to be the small-scale erasing function. The control part is the erasing part 16, and the touch projection area of the erasing part 16 is preset to correspond to the large-scale erasing function, then the handwriting of the determined function type is the large-scale erasing function. In this embodiment, the touch projection area of the writing pen corresponds to the preset writing function, so as to avoid the need for the user to repeatedly perform mode switching operations when writing different types of writing functions in the related art.

In the description herein, it should be understood that the terms "upper", "lower", "left", "right", etc. orientation or positional relationship are only for convenience of description and simplification of operation, not to indicate or imply Any device or element must have a specific orientation, be constructed, and operate in a specific orientation, and therefore should not be construed as limiting the application. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

In the description of this specification, descriptions referring to the terms "an embodiment", "example" and the like mean that specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application middle. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only contains an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

The above describes the technical principles of the present application in conjunction with specific embodiments. These descriptions are only for explaining the principles of the present application, and cannot be construed as limiting the protection scope of the present application in any way. Based on the explanations herein, those skilled in the art can think of other specific implementation manners of the present application without creative efforts, and these manners will fall within the protection scope of the present application.

Claims

A writing pen, comprising:

Pen body, the first writing part and the top, the pen body extends linearly along its length direction, the pen body has two ends, one end of the pen body is provided with the first writing part, and the other end of the pen body An abutment is provided, and the cross-sectional area of the first writing part gradually increases from the end of the first writing part away from the pen body toward the end of the first writing part close to the pen body, and the pen body The length is 50-100mm, and the abutting portion is used to abut against the user's palm as a support.
The writing pen according to claim 1, wherein one side of the first writing part has a slope; the slope is at least partly arranged on one side of the first writing part, and the first writing part comprises a first A writing surface and a plurality of second writing surfaces connected to the first writing surface, an obtuse angle is formed between the second writing surface and the first writing surface, and between any two adjacent second writing surfaces It is set so that the first writing part is formed with a plurality of cut surfaces.
The writing pen according to claim 1, wherein one side of the first writing part has an inclined surface; a circular arc transition surface is provided between the inclined surface and the side of the pen body.
The writing pen according to claim 1, wherein the end of the abutting portion has a second writing portion, and the touch projection area of the second writing portion is larger than the touch projection area of the first writing portion, so that The first writing part and the second writing part realize different writing functions.
The writing pen according to claim 1, wherein an erasing part is provided at the end of the abutting part; the projected touch area of the erasing part is larger than the projected touch area of the first writing part.
The writing pen according to claim 1, further comprising an erasing portion disposed on the side of the pen body and extending along the length direction of the pen body;

The surface of the erasing part has a wiping surface, and the touch projection area of the wiping surface is larger than the touch projection area of the first writing part.
The writing pen according to claim 6, wherein the erasing portion is in the shape of a cuboid, and the erasing surface is in the shape of a rectangle.
The writing pen according to claim 6, wherein the surface of the wiping surface is covered with a friction sheet, and the shape of the friction sheet is consistent with the shape of the wiping surface.
The writing pen according to claim 8, wherein the friction plate is made of felt cloth.
The writing pen according to claim 1, further comprising a page turning function module embedded in the pen body, and control buttons are arranged on the page turning function module.
The writing pen according to any one of claims 1-10, wherein: the pen body has a flat structure, and one end of the pen body close to the first writing part is provided with a holding part, and the holding part The part includes two opposite planes, and the connecting surface between the two planes is a circular arc transition surface.
The writing pen according to claim 11, wherein the grip portion has a width of 15-18 mm.
The writing pen according to claim 1, wherein the pen body is in the shape of a truncated cone, and the cross-sectional area of the pen body gradually increases from an end close to the first writing part to an end far away from the first writing part , the end of the pen body close to the first writing part is provided with a holding part.
The writing pen according to claim 13, wherein the diameter of the holding portion is 8-11mm.
The writing pen according to claim 1, wherein the first writing part is integrally formed of PE material.
An intelligent interactive tablet, including: a touch screen and the writing pen according to any one of claims 1-15, one side of the display surface of the touch screen is provided with a detection device for detecting the touch projection area line, by changing the relative angle or distance between the writing pen and the detection line, so as to increase or decrease the touch projection area of the writing pen.
An intelligent interactive flat panel, including: a touch screen and the writing pen described in any one of claims 1-15, the touch screen includes a capacitive layer for detecting a touch projection area, by changing the The contact area of the writing pen with the touch screen can increase or decrease the touch projection area of the writing pen.
A smart blackboard, comprising a main screen, a secondary screen and the writing pen according to any one of claims 1-15, the secondary screen is spliced and arranged on one side of the main screen, the main screen is an intelligent interactive flat panel, the The secondary screen is a blackboard, and the writing pen is used for touch operation on the main screen.
An interactive operation method based on a writing pen, applied to an interactive tablet, the interactive tablet includes a writing pen, a display screen and a touch sensor module, and the writing pen includes a first writing part, a second writing part and an erasing part part, the first writing part and the second writing part are arranged at both ends of the writing pen, the erasing part is arranged on the side of the writing pen, and the touch of the second writing part The projected area is larger than the touch projected area of the first writing part, the touch projected area of the erasing part is larger than the touch projected area of the first writing part or the second writing part, wherein the method include:

The touch sensing module detects first touch information of the first writing part performing a touch operation on the display screen, and the first touch information includes one or more touch coordinate information;

Determine the first touch projected area information according to the first touch information, and determine according to the first touch projected area information that the mark of the writing pen corresponding to the touch operation is a first mark, and the first The identification is associated with the fine pen writing function or the first color function of the interactive tablet;

According to the first identification, execute the writing function with a fine pen or the first color writing function on the display screen and display the writing track with a fine pen or the writing track with the first color;

The touch sensing module detects second touch information of the second writing part performing a touch operation on the display screen, and the second touch information includes one or more touch coordinate information;

Determine the second touch projected area information according to the second touch information, and determine according to the second touch projected area information that the mark of the writing pen corresponding to the touch operation is a second mark, and the second The identification is associated with the writing function of the interactive tablet with a thick pen or the writing function of the second color;

According to the second identification, execute the thick pen writing function or the second color writing function on the display screen and display the thick pen writing track or the second color writing track;

The touch sensing module detects third touch information of the erasing unit performing a touch operation on the display screen, the third touch information includes one or more touch coordinate information;

Determine the third touch projected area information according to the third touch information, determine according to the third touch projected area information that the mark of the writing pen corresponding to the touch operation is a third mark, and the third The identification is associated with the erase function of the interactive panel;

According to the third identification, the erasing function is executed on the display screen and an erasing track is displayed.