WO2022257705A1

WO2022257705A1 - Flexible intelligent writing system

Info

Publication number: WO2022257705A1
Application number: PCT/CN2022/093043
Authority: WO
Inventors: 邓海
Original assignee: 深圳市灵畅互动科技有限公司
Priority date: 2021-06-09
Filing date: 2022-05-16
Publication date: 2022-12-15

Abstract

Disclosed in the present invention is a flexible intelligent writing system, comprising a stylus, a writing device, and a board eraser, wherein the stylus is a conductive capacitive whiteboard stylus; the writing device is a flexible intelligent capacitive writing device; the board eraser is a conductive intelligent board eraser; the capacitive whiteboard stylus is used for performing writing on the flexible intelligent capacitive writing device, and can write ink marks of various colors; the flexible intelligent capacitive writing device is used for presenting the ink marks of various colors written by the capacitive whiteboard stylus in real time, and identifying and processing digital coordinate handwriting corresponding to the ink marks; and the intelligent board eraser erases the ink marks of various colors on the flexible intelligent capacitive writing device, and simultaneously erases the digital coordinate handwriting while the flexible intelligent capacitive writing device can identify the digital coordinate handwriting. The present invention is light in weight and thin in size, can be conveniently fixed on a plane or a wall body, such as glass, can save the packaging and transportation costs, reduce space, and is complete in function, strong in practicability, and good in user experience.

Description

A flexible intelligent writing system

technical field

The invention relates to the technical field of flexible intelligent writing, in particular to a flexible intelligent writing system.

Background technique

Writing is a habit of the evolution of human civilization. In order to record the creativity or ideas that arise anytime and anywhere, people often write on glass, walls and other utensils. The interactive electronic whiteboard goes a step further, digitizing and digitizing the written information for better storage and processing.

technical problem

Traditional electronic whiteboards have problems such as fixed size, inconvenient installation, large space occupation, and high packaging and transportation costs.

technical solution

The purpose of the present invention is to provide a flexible intelligent writing system, which can be conveniently fixed on flat or curved surfaces such as glass or walls in office and teaching spaces, does not take up space, and is convenient for writing. Digitized and electronic, convenient and efficient sharing, storage and processing. The many technical effects that can be produced by the preferred technical solutions among the many technical solutions provided by the present invention are described in detail below.

In order to achieve the above object, the present invention provides the following technical solutions: provide a flexible intelligent writing system, including a pen, a writing device and an eraser, the pen is a conductive capacitive whiteboard writing pen, and the writing device is a flexible intelligent capacitive writing device , the eraser is a conductive smart eraser;

The capacitive whiteboard writing pen is used for writing on the flexible smart capacitive writing device, and can write ink marks of various colors; at the same time, it forms a conductive body with the human body and generates a negative impact on the flexible smart capacitive writing device when writing. Affects handwriting in order to allow it to recognize the numerical coordinates of the writing location;

The flexible smart capacitive writing device is used to present in real time the inks of various colors written by the capacitive whiteboard writing pen, and to identify and process the digital coordinate handwriting corresponding to the inks;

The smart eraser is used for erasing the ink marks of various colors on the flexible smart capacitor writing device when touching and moving the flexible smart capacitor writing device, and allowing the flexible smart capacitor to write The device can recognize the digital coordinate handwriting and erase the digital coordinate handwriting at the same time.

Preferably, the flexible smart capacitive writing device includes a flexible capacitive-sensing writing film and a control module, the flexible capacitive-sensing writing film is a flexible film that can be written on the surface and capable of capacitive sensing; the control module and the flexible capacitive-sensing writing The membranes are connected by a flex circuit.

Preferably, it also includes a smart terminal; the control module is connected in communication with the smart terminal, and the communication connection is a wired communication connection and/or a wireless communication connection;

When the human body touches or holds the capacitive whiteboard writing pen for writing, the control module can identify the received signal change and calculate the relative position of the touch point or writing point on the flexible capacitive sensing writing film, and the smart terminal process, calculate, and display the digital coordinate handwriting; or, when the human body touches or holds the smart eraser for erasing, the smart terminal recognizes the digital coordinate handwriting and then simultaneously performs the digital coordinate handwriting erase.

Preferably, the flexible capacitive sensing writing film includes a surface writing layer, a first capacitive sensing circuit layer, an insulating layer, a second capacitive sensing circuit layer, a protective layer and a fixed layer;

The surface writing layer is used for writing by the capacitive whiteboard writing pen, and presenting the ink marks of various colors in real time;

The first capacitive sensing circuit layer and the second capacitive sensing circuit layer are used to transmit or receive signals under the control of the control module to identify digital coordinates of touch points or ink marks;

The insulating layer is used to block the conduction between the first capacitive sensing circuit layer and the second capacitive sensing circuit layer;

The protection layer is used to protect the second capacitive sensing circuit layer from being damaged by external force;

The fixing layer is used to detachably fix the flexible smart capacitive writing device on the plane or curved surface of the glass or the wall.

Preferably, the writing surface of the surface writing layer is treated with anti-glare treatment and hardening treatment, and the hardness is greater than or equal to 1H;

The surface writing layer, insulating layer and protective layer are white flexible materials or transparent flexible materials.

Preferably, the control module is connected to the first capacitive sensing circuit layer and the second capacitive sensing circuit layer through a flexible circuit;

The first capacitive sensing circuit layer and the second capacitive sensing circuit layer are flexible circuits;

The first capacitive sensing circuit layer and the second capacitive sensing circuit layer use conductive carbon paste printed circuits; or, the first capacitive sensing circuit layer and the second capacitive sensing circuit layer use metal wire printed circuits; or, the first capacitive sensing circuit layer uses metal wire printed circuits; The first capacitive sensing circuit layer and the second capacitive sensing circuit layer adopt ITO etching circuit; or, the first capacitive sensing circuit layer and the second capacitive sensing circuit layer adopt embossed metalmesh circuit; or, the first capacitive sensing circuit layer And the second capacitive sensing circuit layer employs etched metalmesh circuit.

Preferably, the flexible capacitive sensing writing film includes at least one projection interaction area and/or at least one smart writing area;

The projection interaction area is used to reflect the light projected by the projection device to form a picture, and can recognize touch, write or erase signals through the control sensor of the control module;

The intelligent writing interactive area is used for writing and presenting ink marks of various colors; at the same time, the digital coordinate signals of touching, writing or erasing are recognized through the control sensing of the control module.

Preferably, the projection interaction area and the horizontal induction circuit of the intelligent writing area are the same group of circuits; that is, one or more horizontal circuits in it cover at least one of the projection interaction areas and/or at least one of the intelligent writing areas at the same time. writing area.

Preferably, when touching or writing in the projection interaction area, the control module uses a standard touch protocol to send the digital coordinate handwriting and click or lift information; when touching or writing in the smart writing area, the The control module uses a non-standard touch protocol to send the digital coordinate handwriting and click or lift information; and the digital coordinates of the projected interactive area and the smart writing area overlap in whole or in part.

Preferably, it also includes a smart pen holder; the smart pen holder is used to place the capacitive whiteboard writing pens of different colors and identify whether the capacitive whiteboard writing pens of different colors are placed through the control module, and then the flexible smart pen The color of the handwriting corresponding to the digital coordinates is recognized while presenting ink marks of different colors on the capacitive writing device;

The control module is used to identify the signal of the smart pen holder and communicate with the smart terminal, so that the smart terminal displays or processes the corresponding digital coordinate handwriting when writing or erasing.

Preferably, the smart pen holder is connected to the control module, and includes a plurality of pen boxes for placing the capacitive whiteboard writing pens of different colors, and a plurality of photoelectric signal detection modules arranged in each of the pen boxes or an electromagnetic signal detection module;

Each of the photoelectric signal detection modules or electromagnetic signal detection modules is used to detect whether there is the capacitive whiteboard writing pen in each of the pen boxes, and the control module sends the pen box information to the smart terminal.

Preferably, the capacitive whiteboard writing pen includes a conductive pen shell, a writing refill and a conductive writing liquid;

The writing core is embedded in one end of the conductive pen shell; the writing liquid is stored in the space formed by the conductive pen shell and the writing core; the conductive pen shell and the writing core pass through the writing The liquids are in electrical contact and form a conductive whole.

Preferably, the inner surface of the conductive pen case, the part of the conductive pen case in contact with the writing core, and the outer surface of the conductive pen case are all covered with conductive materials;

Preferably, the writing core is a writing core of conductive material;

The outer surface of the conductive pen case is provided with a conductive silk screen or a conductive label for increasing the conductivity of the conductive pen case;

The conductive pen shell is conductive plastic, metal or alloy; or, the conductive pen shell is a non-conductive material, and its inner surface, the part in contact with the writing core and the outer surface are all covered with conductive materials, and the The inner surface of the conductive pen case is electrically connected to the outer surface to form a conductive whole.

Preferably, the smart eraser includes a hand-held part and an erasing part; the hand-held part is electrically connected to the erasing part; both the hand-held part and the erasing part are conductors; the erasing part is also connected to the erasing part The handles are closely connected.

Beneficial effect

The present invention can display the ink written on the flexible capacitive sensing writing film in real time by setting a capacitive whiteboard writing pen, a flexible capacitive sensing writing device and an intelligent eraser, and at the same time recognize the digital coordinate handwriting written on the flexible smart capacitive writing film, And store or display the recognized digital coordinate handwriting. At the same time, the capacitive whiteboard writing pen can also operate the touch screen; erase. Therefore, this system has the functions of recognizing handwriting of digital coordinates, displaying handwriting of digital coordinates, erasing handwriting of digital coordinates, erasing ink, and operating the touch screen. The invention takes up little space and can be conveniently fixed on flat or curved objects such as glass and walls. The invention has complete functions, strong practicability, good user experience, and has relatively extensive market and application value.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. Those of ordinary skill in the art can also obtain other drawings based on these drawings without creative labor. In the drawings:

Fig. 1 is the first structural schematic diagram of the flexible intelligent writing system of the embodiment of the present invention;

Fig. 2 is the second structural schematic diagram of the flexible intelligent writing system of the embodiment of the present invention;

Fig. 3 is a complete structural schematic diagram of the flexible intelligent writing system of the embodiment of the present invention;

4 is a schematic structural view of a capacitive whiteboard writing pen according to an embodiment of the present invention;

Fig. 5 is the structural representation of the intelligent blackboard eraser of the embodiment of the present invention;

Fig. 6 is a schematic structural diagram of a smart terminal set in the middle of a tablet according to an embodiment of the present invention;

Fig. 7 is a schematic structural diagram of a smart terminal set on one side of a tablet according to an embodiment of the present invention;

Fig. 8 is a schematic structural diagram of the smart terminal arranged on the other side of the tablet according to the embodiment of the present invention.

In the figure: 1. Capacitive whiteboard writing pen; 10. Conductive pen shell; 11. Writing refill; 2. Flexible smart capacitive writing device; 20. Writing board; 200. Frame body; 201. Board body; 21. Digital coordinate handwriting Identification module; 210, processing module; 211, capacitive signal acquisition module; 212, storage module; 213, communication module; 214, power supply module; 3, smart board eraser; 30, handheld part; 31, erasing part; 4, control module; 5. Smart terminal; 6. Smart pen holder.

Embodiments of the present invention

In order to make the purpose, technical solutions and advantages of the present invention clearer, the various exemplary embodiments to be described below will refer to the accompanying drawings, which constitute a part of the exemplary embodiments, and describe the implementation of the present invention. Various exemplary embodiments that may be employed. Unless indicated otherwise, the same numbers in different drawings identify the same or similar elements. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. It should be understood that these are merely examples of procedures, methods, apparatus, etc., consistent with aspects of the present disclosure as detailed in the appended claims, and that other embodiments may be used, or alternatives to those set forth herein The embodiments undergo structural and functional modifications without departing from the scope and spirit of the present invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", etc. indicate the orientation or positional relationship based on the drawings, and are only for the convenience of describing the present invention and simplifying the description. Rather than indicating or implying a particular orientation that the referred element must have, be constructed, or operate in a particular orientation. The terms "first", "second", etc. are used for descriptive purposes only, and should not be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. The term "plurality" means two or more. The terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a communication connection, a direct connection, an indirect connection through an intermediary, or two components The internal connectivity or interaction relationship between two elements. The term "and/or" includes any and all combinations of one or more of the associated listed items. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In order to illustrate the technical solutions of the present invention, specific embodiments are used for description below, and only parts related to the embodiments of the present invention are shown.

As shown in Figures 1-3, the present invention provides an embodiment of a flexible intelligent writing system, including a pen, a writing device and an eraser, the pen is a conductive capacitive whiteboard writing pen 1, and the writing device is a flexible intelligent capacitive writing device 2. The eraser is a conductive smart eraser 3 . Specifically, the capacitive whiteboard writing pen 1 is used for writing on the flexible smart capacitive writing device 2, and can write ink marks of various colors, and at the same time forms a conductive body with the human body to control the flexible smart capacitive when writing. The writing device has an influence to allow it to recognize the digital coordinate handwriting of the writing position; the flexible smart capacitive writing device 2 is used to present in real time the ink marks of various colors written by the capacitive whiteboard writing pen 1, and to describe the ink marks corresponding to the ink marks. The digital coordinate handwriting is identified and processed; the smart eraser 3 is used for erasing inks of various colors on the flexible smart capacitive writing device 2 when abutting and moving with the flexible smart capacitive writing device 2, and Allow the flexible smart capacitive writing device 2 to recognize the handwriting of digital coordinates and then erase the handwriting of digital coordinates at the same time.

In this embodiment, the flexible smart capacitive writing device 2 includes a flexible capacitive-sensing writing film and a control module, the flexible capacitive-sensing writing film is a flexible film whose surface can be written and capacitive sensing; the control module and the Flexible capacitive sensing writing film through flexible circuit (Flexible Printed Circuit, FPC) connection.

As shown in FIG. 3 , this embodiment also includes a smart terminal 5 ; wherein, the control module is connected in communication with the smart terminal, and the communication connection is a wired communication connection and/or a wireless communication connection. Specifically, the intelligent terminal 5 can be a host + projector (integrated setting), host + projector (separated setting), host + display (integrated setting), host + display (separated setting), all-in-one machine (with display ) and so on, there is no specific limitation here. When the human body touches or holds the capacitive whiteboard writing pen for writing, the control module can identify the received signal change and calculate the relative position of the touch point or writing point on the flexible capacitive sensing writing film, and the smart terminal Process, calculate, and display the digital coordinate handwriting; or, when the human body touches or holds the smart eraser to erase, the smart terminal recognizes the digital coordinate handwriting and then simultaneously erases the digital coordinate handwriting .

As shown in FIGS. 6-8 , the smart terminal 5 is fixedly connected to the flexible smart capacitive writing device 2 , or the smart terminal 5 and the flexible smart capacitive writing device 2 are set apart from each other. Specifically, the smart terminal 5 can be set in the middle of the flexible smart capacitive writing device; or, the smart terminal 5 can be set on one side of the flexible smart capacitive writing device. The smart terminal 5 is fixedly connected to the frame body 200 of the flexible smart capacitive writing device 2, and the ways include but not limited to clamping and screwing. Specifically, the control module is arranged on the side of the flexible capacitive sensing writing film, preferably, the control module is a single-chip microcomputer.

In this embodiment, the flexible capacitive sensing writing film includes a surface writing layer, a first capacitive sensing circuit layer, an insulating layer, a second capacitive sensing circuit layer, a protective layer and a fixed layer; wherein, the surface writing layer is used The capacitive whiteboard writing pen is used for writing, and presents the ink marks of various colors in real time; the first capacitive sensing circuit layer and the second capacitive sensing circuit layer are used for transmitting or receiving under the control of the control module The signal further identifies the digital coordinates of the touch point or written ink. Specifically, the first capacitive sensing circuit layer is used to transmit signals, and correspondingly, the second capacitive sensing circuit layer is used to receive signals; the insulating layer is used to block all The first capacitive sensing circuit layer and the second capacitive sensing circuit layer conduct electricity; the protective layer is used to protect the second capacitive sensing circuit layer from being damaged by external force; the fixed layer (preferably, the fixed layer can be Adhesive structure, suction cup structure, hook structure, etc., which are not limited here) are used to detachably fix (for example, paste) the flexible smart capacitive writing device on the wall or plane of glass or other planar devices, and then can It is convenient to fix, easy to carry, and more convenient to operate.

In this embodiment, the control module is used to control the transmission and reception of the signals of the first capacitive sensing circuit layer and the second capacitive sensing circuit layer, when the human body touches or holds the capacitive whiteboard writing pen to write , the control module can identify the received signal change and calculate the relative position of the touch point or writing point on the writing surface, and then calculate the digital coordinate handwriting.

Specifically, the control module is connected to the first capacitive sensing circuit layer and the second capacitive sensing circuit layer through a flexible circuit; the first capacitive sensing circuit layer and the second capacitive sensing circuit layer are flexible circuits, Preferably, the first capacitive sensing circuit layer and the second capacitive sensing circuit layer use metal wire printing circuit; or, the first capacitive sensing circuit layer and the second capacitive sensing circuit layer use ITO etching circuit; or, the The first capacitive sensing circuit layer and the second capacitive sensing circuit layer use embossed metalmesh circuits; or, the first capacitive sensing circuit layer and the second capacitive sensing circuit layer use etched metalmesh circuits.

In this embodiment, the surface writing layer, insulating layer, and protective layer are all white flexible materials (white materials) or transparent flexible materials. Specifically, the writing surface of the surface writing layer has undergone anti-glare treatment and hardening treatment (for example, the surface writing layer adopts hardened PET film), and the hardness is greater than or equal to 1H, which can prevent hard objects from being scratched; the surface writing layer has been treated with anti-glare processing, so that there is no strong reflection on the strong light of the environment, which can make the vision more comfortable and the user experience better.

As we all know, the human body is a conductive body with electric charge. When human hands touch or hold the conductive capacitive whiteboard writing pen 1 and write on the flexible smart capacitive writing device 2, digital coordinate handwriting will appear, which can be displayed on the smart terminal in real time. Display on the screen, if the capacitive whiteboard writing pen 1 is equipped with writing liquid (such as ink, conductive additives are added to the ink), ink will appear (the trace left by the writing liquid on the surface of the flexible intelligent capacitive writing device through the writing refill). Further, the existing common blackboard eraser for ink marks can be erased, but the digital coordinate handwriting cannot be erased at the same time. Therefore, the smart blackboard eraser 3 of this embodiment conducts electricity, and realizes using the smart blackboard eraser 3 through the flexible smart capacitive writing device 2. The purpose of erasing digital coordinate handwriting (see below). Therefore, this system can not only write and display ink marks in real time, or only write and display digital coordinate handwriting in real time (the capacitive whiteboard writing pen does not add ink), but also can store and/or store the recognized and processed digital coordinate handwriting Displayed on the terminal, when erasing is required, the handwriting and/or ink of the written digital coordinates are erased by the smart board eraser 3 . Of course, the ink marks can be rendered in different colors through inks of different colors, and the digital coordinate handwriting can also be set in different colors through the software system of the smart terminal.

In this embodiment, the flexible capacitive sensing writing film includes at least one projection interaction area and/or at least one smart writing area; the projection interaction area is used to reflect the light projected by the projection device to form a picture, and can pass through the The control sensor of the control module recognizes the signal of touching, writing or erasing; the intelligent writing interactive area is used for writing and presenting ink marks of various colors; at the same time, the control sensor of the control module recognizes the signal of touching, writing or erasing Digital coordinate signal. The projection interaction area and the horizontal induction circuit of the intelligent writing area are the same group of circuits, that is, one or more horizontal circuits among them cover at least one projection interaction area and/or at least one intelligent writing area at the same time.

More specifically, when touching or writing in the projected interactive area, the control module uses the standard touch protocol to send the digital coordinate handwriting and click or lift information; when touching or writing in the smart writing area, The control module uses a non-standard touch protocol to send the handwriting of the digital coordinates and click or lift information; and the digital coordinates of the projected interactive area and the smart writing area overlap in whole or in part. That is: the projection interaction area adopts the default standard touch HID protocol of WINDOWS or other operating systems, and the smart writing area adopts a non-standard touch HID protocol (different from the standard touch HID protocol). The coordinates of the projection interaction area and the intelligent writing area are consistent in the Y direction, that is, the vertical direction, that is, the coordinates in the Y direction of the coordinates of different points in the same physical horizontal position are the same; The coordinates of the writing area are overlapped or partially overlapped in the X direction, that is, the horizontal direction.

As shown in FIG. 3 , the capacitive whiteboard writing pen 1 includes a conductive pen case 10 , a writing core 11 and a conductive writing liquid. Specifically, the writing refill 11 is embedded in one end of the conductive pen case 10, and the writing liquid is stored (or injected) in the space formed by the conductive pen case 10 and the writing refill 11. The conductive pen case 10 and the writing refill 11 pass through the writing liquid electrical contact and form a conductive unit. The length of the writing core 11 is shorter than that of the conductive pen shell 10, and the writing liquid does not necessarily fill the entire conductive pen shell 10, which is convenient for reducing the cost of the capacitive whiteboard writing pen 1. Meanwhile, the writing liquid can be stored in the conductive pen case 10 in other storage forms, which is not specifically limited here. Further, because the conductive pen case 10, the writing liquid, and the writing refill 11 are a conductive whole, the writing liquid penetrates into the writing refill 11, and the human hand holds the conductive pen case 10, and the writing refill 11 and the flexible intelligent When the capacitive writing device 2 is touched, writing can be performed on the flexible smart capacitive writing device 2 . In addition, manipulating the conductive pen case 10 to contact the writing refill 11 with the flexible smart capacitive writing device 2 can also operate the flexible smart capacitive writing device 2 (or smart terminal 5), so as to realize simultaneous writing and operation of the flexible smart capacitive writing device 2 (or smart terminal 5). It should be noted that the conductive pen case 10 can be a new conductive pen case, or can be an existing common whiteboard pen case through electroprocessing, such as replacing it with a conductive metal case, spraying or electroplating conductive materials, etc., so that it has Electrical conductivity. The writing refill can be made of conductive material or non-conductive material. Preferably, the writing refill is a writing refill of conductive material, and the writing refill is not specifically limited here. Therefore, the capacitive whiteboard writing pen 1 of this embodiment adds a conductive function to the whiteboard pen, so as to achieve the functions of the whiteboard pen and the capacitive pen.

Further, the way of inserting the writing core 11 into one end of the conductive pen case 10 can be tight fitting or plugging. When closely matched, the conductive pen case 10 and the writing refill 11 are not detachable, so the capacitor whiteboard writing pen 1 is disposable. The conductive pen shell 10 or the writing refill 11 of the whiteboard writing pen 1 . In order to increase the conductivity of the capacitance whiteboard writing pen 1, the measures taken are: the inner surface of the conductive pen case 10, the part where the conductive pen case 10 is in contact with the writing refill 11, and the outer surface of the conductive pen case 10 are all covered with conductive materials (such as spraying conductive oil); the outer surface of the conductive pen shell 10 is provided with a conductive printing silk or label; moreover, the writing liquid is added with a conductive additive. All of the above methods can effectively enhance the conductive performance of the capacitive whiteboard writing pen 1 , thereby achieving better writing effects, digital coordinate handwriting recognition effects, and touch screen control effects. In addition, other conductive methods that can conduct the charge of the human body to the flexible smart capacitive writing device through the capacitive whiteboard writing pen are all within the protection scope of the present invention, and are not limited here.

In this embodiment, the conductive pen case 10 is conductive metal or alloy, or conductive plastic, and existing conductive metals, alloys, and plastics can be used as the conductive pen case 10 of this embodiment; or, the conductive pen Shell 10 is a non-conductive material. When the conductive pen case 10 is a non-conductive material, it is necessary to make the entire pen case possess electrical conductivity. All are covered with conductive material (the covering method can be electroplating or spraying), and the inner surface of the conductive pen case 10 is electrically connected to the outer surface to form a conductive whole, so as to achieve the effect of the entire conductive pen case conducting electricity. Of course, any material suitable for electroplating in the prior art can be used as the conductive material in this embodiment.

As shown in Figure 2-3, it also includes the smart pen holder for placing the capacitive whiteboard writing pens of different colors and identifying whether the capacitive whiteboard writing pens of different colors are placed, and then on the flexible smart capacitive writing device Digital coordinate handwriting in different colors. Specifically, the smart pen holder is connected to the control module, and includes a plurality of pen boxes for placing the capacitive whiteboard writing pens of different colors, and a plurality of photoelectric signal detection modules arranged in each of the pen boxes or an electromagnetic signal detection module; each of the photoelectric signal detection modules or electromagnetic signal detection modules is used to detect whether there is the capacitive whiteboard writing pen in each of the pen boxes, and send the pen box information to the control module, so The control module sends the pencil box information to the smart terminal through the communication module. More specifically, different pen boxes are placed with capacitive whiteboard writing pens of different colors. When it detects that a certain pen box is empty or not empty, it immediately sends the information of the pen box to the smart terminal. The position (that is, the number of the pen box and other information) can be used to determine the color of the capacitive whiteboard writing pen, and further display the digital coordinate handwriting of the corresponding color on the flexible smart capacitive writing device.

As shown in FIG. 5 , the smart eraser 3 includes a handheld part 30 and an erasing part 31 . Specifically, the handle part 30 can be a cavity structure with one side open (the cavity is used to accommodate part of the erasing part), and its shape can be consistent with the erasing part 31, and it can also be inconsistent with the erasing part 31. In short, it is beneficial to hold the eraser by hand . In this embodiment, the erasing portion 31 is preferably a cylindrical structure, and its erasing surface is circular. The handle part 30 is electrically connected to the erasing part 31 , and both the handle part 30 and the erasing part 31 are conductors. When the erasing part 31 abuts against the capacitive whiteboard, moving the handheld part 30 can erase the ink written on the capacitive whiteboard, and at the same time, also erase the digital coordinate handwriting written on the capacitive whiteboard. We know that when writing on a capacitive whiteboard, there is ink, and at the same time, there are digital coordinate handwritings that are consistent with the ink (size, shape, etc.). Erasing ink marks is different from digital coordinate handwriting. Erasing digital coordinate handwriting requires the eraser to be a conductor. Therefore, the erasing part 31 in this embodiment is a wear-resistant conductive sponge, wear-resistant conductive cloth or wear-resistant conductive cotton.

The flexible smart capacitive writing device can identify the moving track of the sassafras, the flexible smart capacitive writing device can receive the moving track identified by the capacitive sensor, and erase the digital coordinate handwriting covered by the erasing part 31 according to the moving track. Therefore, the function of erasing digital coordinate handwriting is realized. Further, the erasing part 31 is also closely connected with the handle part 30 by means of glue fixing or wire connection, and the outer surface of the handle part 30 is provided with conductive printing silk or conductive labels, thereby ensuring that there is no abnormality when the person holds the handle part 30. The conductive part exists to ensure sufficient conductive contact, so as to realize the continuous contact of the human hand with the flexible smart capacitive writing device through the erasing part 31, and then erase the handwriting of the digital coordinates.

The present invention can display the ink written on the flexible smart capacitor writing film in real time by setting the capacitive whiteboard writing pen, the flexible smart capacitor book device, the smart terminal and the smart eraser, and at the same time, the digital coordinate handwriting written on the flexible smart capacitor writing film can be displayed. Recognize and store or display the recognized digital coordinate handwriting. At the same time, the capacitive whiteboard writing pen can also operate the touch screen; Handwriting to be erased. Therefore, this system has the functions of recognizing handwriting of digital coordinates, displaying handwriting of digital coordinates, erasing handwriting of digital coordinates, erasing ink, and operating the touch screen. The invention takes up little space and can be conveniently pasted on flat or curved objects such as glass and walls. The present invention is light in weight, thin in size, can be conveniently fixed on glass or other planes or walls, can save packaging and transportation costs, save space, has complete functions, strong practicability, and good user experience.

The above descriptions are only preferred embodiments of the present invention. Those skilled in the art know that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, the features and examples may be modified to adapt a particular situation and material to the teachings of the invention without departing from the spirit and scope of the invention. Therefore, the present invention is not limited by the specific embodiments disclosed here, and all embodiments falling within the scope of the claims of the present application belong to the protection scope of the present invention.

Claims

A flexible intelligent writing system, comprising a pen, a writing device and an eraser, characterized in that the pen is a conductive capacitive whiteboard writing pen, the writing device is a flexible intelligent capacitive writing device, and the eraser is a conductive smart eraser;

The capacitive whiteboard writing pen is used for writing on the flexible smart capacitive writing device, and can write ink marks of various colors; at the same time, it forms a conductive body with the human body and generates a negative impact on the flexible smart capacitive writing device when writing. Affects handwriting in order to allow it to recognize the numerical coordinates of the writing location;

The flexible smart capacitive writing device is used to present in real time the inks of various colors written by the capacitive whiteboard writing pen, and to identify and process the digital coordinate handwriting corresponding to the inks;

The smart eraser is used for erasing the ink marks of various colors on the flexible smart capacitor writing device when touching and moving the flexible smart capacitor writing device, and allowing the flexible smart capacitor to write The device can recognize the digital coordinate handwriting and erase the digital coordinate handwriting at the same time.
The flexible intelligent writing system according to claim 1, wherein the flexible intelligent capacitive writing device comprises a flexible capacitive sensing writing film and a control module, and the flexible capacitive sensing writing film is a flexible capacitive sensing writing film whose surface can be written and capacitive sensing. film; the control module is connected to the flexible capacitive sensing writing film through a flexible circuit.
The flexible intelligent writing system according to claim 2, further comprising an intelligent terminal; the control module is connected in communication with the intelligent terminal, and the communication connection is a wired communication connection and/or a wireless communication connection;

When the human body touches or holds the capacitive whiteboard writing pen for writing, the control module can identify the received signal change and calculate the relative position of the touch point or writing point on the flexible capacitive sensing writing film, and the smart terminal process, calculate, and display the digital coordinate handwriting; or, when the human body touches or holds the smart eraser for erasing, the smart terminal recognizes the digital coordinate handwriting and then simultaneously performs the digital coordinate handwriting erase.
The flexible intelligent writing system according to claim 2, wherein the flexible capacitive sensing writing film comprises a surface writing layer, a first capacitive sensing circuit layer, an insulating layer, a second capacitive sensing circuit layer, a protective layer and a fixed layer ;

The surface writing layer is used for writing by the capacitive whiteboard writing pen, and presenting the ink marks of various colors in real time;

The first capacitive sensing circuit layer and the second capacitive sensing circuit layer are used to transmit or receive signals under the control of the control module to identify digital coordinates of touch points or ink marks;

The insulating layer is used to block the conduction between the first capacitive sensing circuit layer and the second capacitive sensing circuit layer;

The protection layer is used to protect the second capacitive sensing circuit layer from being damaged by external force;

The fixing layer is used to detachably fix the flexible smart capacitive writing device on the plane or curved surface of the glass or the wall.
The flexible intelligent writing system according to claim 4, wherein the writing surface of the surface writing layer is treated with anti-glare treatment and hardening treatment, and the hardness is greater than or equal to 1H;

The surface writing layer, insulating layer and protective layer are white flexible materials or transparent flexible materials.
The flexible intelligent writing system according to claim 4, wherein the control module is connected to the first capacitive sensing circuit layer and the second capacitive sensing circuit layer through a flexible circuit;

The first capacitive sensing circuit layer and the second capacitive sensing circuit layer are flexible circuits;

The first capacitive sensing circuit layer and the second capacitive sensing circuit layer use conductive carbon paste printed circuits; or, the first capacitive sensing circuit layer and the second capacitive sensing circuit layer use metal wire printed circuits; or, the first capacitive sensing circuit layer uses metal wire printed circuits; The first capacitive sensing circuit layer and the second capacitive sensing circuit layer adopt ITO etching circuit; or, the first capacitive sensing circuit layer and the second capacitive sensing circuit layer adopt embossed metalmesh circuit; or, the first capacitive sensing circuit layer And the second capacitive sensing circuit layer employs etched metalmesh circuit.
The flexible intelligent writing system according to claim 4, wherein the flexible capacitive sensing writing film comprises at least one projection interaction area and/or at least one intelligent writing area;

The projection interaction area is used to reflect the light projected by the projection device to form a picture, and can recognize touch, write or erase signals through the control sensor of the control module;

The intelligent writing interactive area is used for writing and presenting ink marks of various colors; at the same time, the digital coordinate signals of touching, writing or erasing are recognized through the control sensing of the control module.
The flexible intelligent writing system according to claim 7, characterized in that, the projection interaction area and the horizontal induction circuit of the intelligent writing area are the same group of circuits; that is, one or more of the horizontal circuits simultaneously cover at least one The projection interaction area and/or at least one smart writing area.
The flexible intelligent writing system according to claim 7, wherein when touching or writing in the projection interaction area, the control module uses a standard touch protocol to send the digital coordinate handwriting and click or lift information, when When the smart writing area is touched or written, the control module uses a non-standard touch protocol to send the digital coordinate handwriting and click or lift information; and the digital coordinates of the projection interaction area and the smart writing area are all or partially overlapping.
The flexible intelligent writing system according to claim 2, further comprising an intelligent pen holder; the intelligent pen holder is used for placing the described capacitive whiteboard writing pens of different colors and identifying the different colored writing pens through the control module. Whether the capacitive whiteboard writing pen is placed, and then recognize the color of the corresponding digital coordinate handwriting while presenting ink marks of different colors on the flexible smart capacitive writing device;

The control module is used to identify the signal of the smart pen holder and communicate with the smart terminal, so that the smart terminal displays or processes the corresponding digital coordinate handwriting when writing or erasing.
The flexible intelligent writing system according to claim 10, wherein the intelligent pen holder is connected to the control module, and includes a plurality of pen boxes for placing the capacitance whiteboard writing pens of different colors, and a plurality of settings a photoelectric signal detection module or an electromagnetic signal detection module in each of the pen boxes;

Each of the photoelectric signal detection modules or electromagnetic signal detection modules is used to detect whether there is the capacitive whiteboard writing pen in each of the pen boxes, and the control module sends the pen box information to the smart terminal.
The flexible intelligent writing system according to claim 1, wherein the capacitive whiteboard writing pen comprises a conductive pen case, a writing refill and a conductive writing liquid;

The writing core is embedded in one end of the conductive pen shell; the writing liquid is stored in the space formed by the conductive pen shell and the writing core; the conductive pen shell and the writing core pass through the writing The liquids are in electrical contact and form a conductive whole.
The flexible intelligent writing system according to claim 12, wherein the inner surface of the conductive pen case, the part where the conductive pen case is in contact with the writing core, and the outer surface of the conductive pen case are all covered conductive material;

The writing refill is a writing refill of conductive material;

The outer surface of the conductive pen case is provided with a conductive silk screen or a conductive label for increasing the conductivity of the conductive pen case;

The conductive pen shell is conductive plastic, metal or alloy; or, the conductive pen shell is a non-conductive material, and its inner surface, the part in contact with the writing core and the outer surface are all covered with conductive materials, and the The inner surface of the conductive pen case is electrically connected to the outer surface to form a conductive whole.
The flexible intelligent writing system according to claim 1, wherein the intelligent eraser comprises a hand-held part and an erasing part;

The handle part is electrically connected to the erasing part;

Both the holding part and the erasing part are conductors;

The erasing part is also closely connected with the handle part.