CN117321551A - Touch system and touch positioning system - Google Patents

Touch system and touch positioning system Download PDF

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Publication number
CN117321551A
CN117321551A CN202280001030.7A CN202280001030A CN117321551A CN 117321551 A CN117321551 A CN 117321551A CN 202280001030 A CN202280001030 A CN 202280001030A CN 117321551 A CN117321551 A CN 117321551A
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China
Prior art keywords
information
display
touch
positioning
signal
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CN202280001030.7A
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Chinese (zh)
Inventor
房德利
时晓东
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BOE Technology Group Co Ltd
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BOE Technology Group Co Ltd
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Position Input By Displaying (AREA)

Abstract

A touch system and a touch positioning system are provided. The touch control system comprises: the information acquisition devices (1) are used for being fixed on the outer surface of the display (5), and each information acquisition device (1) is used for acquiring positioning information when the display (5) is subjected to touch operation; the algorithm module (2) is in communication connection with the plurality of information acquisition devices (1) and is used for acquiring a plurality of positioning information and determining position information when the display (5) is subjected to touch operation according to the plurality of positioning information. In the embodiment of the disclosure, when the display (5) is in touch operation, the positioning information can be acquired by the plurality of information collectors (1) respectively and transmitted to the algorithm module (2), so that the algorithm module (2) determines the position information according to the plurality of positioning information, and further the touch operation on the display (5) is convenient to realize.

Description

Touch system and touch positioning system Technical Field
The disclosure relates to the technical field of touch control, in particular to a touch control system and a touch control positioning system.
Background
With the rapid development of display technology, larger-sized display devices (such as conference whiteboards, etc.) are becoming more favored by users. In the use process of the display device, the touch function is not provided, so that part of the demands of users cannot be met.
It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the present disclosure and thus may include information that does not constitute prior art known to those of ordinary skill in the art.
Disclosure of Invention
The disclosure aims to provide a touch system and a touch positioning system.
According to a first aspect of the present disclosure, there is provided a touch system, comprising:
the information acquisition devices are used for being fixed on the outer surface of the display, and each information acquisition device is used for acquiring positioning information when the display is subjected to touch operation;
the algorithm module is in communication connection with the information collectors, and is used for acquiring the positioning information and determining the position information when the display is subjected to touch operation according to the positioning information.
According to any one of the touch control systems of the present disclosure, the information collector is an optical sensor, and the positioning information includes optical positioning information;
the optical sensor is used for collecting optical positioning information and transmitting the optical positioning information to the algorithm module, and the algorithm module is used for determining the position information according to a plurality of optical positioning information.
The touch system according to any one of the present disclosure, further comprising a stylus, the stylus comprising a controller and a signal transmitter, the positioning information comprising a positioning signal;
the controller is electrically connected with the signal transmitter, the controller is used for controlling the signal transmitter to transmit a positioning signal when the touch pen touches the display, the information collector is a signal receiver, the signal receiver is used for receiving the positioning signal and transmitting the positioning signal to the algorithm module, and the algorithm module is used for determining the position information according to the signal attenuation intensity of a plurality of positioning signals.
According to any one of the touch control systems of the present disclosure, the working frequency bands of the information transmitter and the signal receiver are the same, and are greater than or equal to 2.4GHz and less than or equal to 2.4835GHz.
According to the touch control system of any one of the present disclosure, the stylus further comprises a control switch;
the control switch is respectively and electrically connected with the controller and the signal transmitter, the control switch can be kept in a conducting state when the touch pen touches the display, and the controller is used for controlling the signal transmitter to transmit a positioning signal when the control switch is conducted.
The touch control system according to any one of the present disclosure, wherein the touch control pen comprises a pen body, and a pen point of the pen body is provided with a through hole;
the control switch is a pressure sensing switch and is provided with a pressure sensing end, the pressure sensing switch is positioned inside the pen body, and at least part of the pressure sensing end extends out of the through hole.
The touch system according to any of the present disclosure, the algorithm module is configured to:
acquiring positioning information acquired by a plurality of information collectors; respectively determining the linear distance between the touch position and the information collectors when the display is in touch operation according to the positioning information; and determining the position information of the touch position according to the linear distances.
The touch system according to any one of the present disclosure, the touch system includes a processor, and the processor includes the algorithm module.
According to a second aspect of the present disclosure, there is provided a touch positioning system, the touch positioning system comprising:
a first processor;
the information acquisition devices are used for being fixedly connected with the display and are all in communication connection with the first processor;
The information collector is used for collecting positioning information when the display is subjected to touch operation, and the first processor comprises an algorithm module which is used for obtaining a plurality of positioning information and determining the position information of the display when the display is touched according to the positioning information.
According to any one of the touch positioning systems of the present disclosure, the touch positioning system includes a display;
the display comprises the first processor, and the first processor is used for controlling the display to execute corresponding operations according to the position information.
According to any one of the touch positioning systems of the present disclosure, the touch positioning system includes a display;
the display comprises a second processor which is in communication connection with the first processor, and the second processor is used for acquiring the position information so as to control the display to execute corresponding operations.
The touch positioning system according to any one of the present disclosure, wherein the first processor is further configured to determine at least one of the location information and at least one time information corresponding to the location information, and the second processor is configured to obtain at least one of the location information and at least one of the time information, and control the display to perform a corresponding operation according to the at least one of the location information and the at least one of the time information.
According to any one of the touch positioning systems of the present disclosure, the display is rectangular, and the touch positioning system includes 2 information collectors;
the two information collectors are fixed on the same side of the display at intervals, and at least one of the two information collectors is positioned at the corner of the display.
According to any one of the touch positioning systems of the present disclosure, the touch positioning system includes 3 or more than 3 information collectors, and a line connecting positions of the information collectors can be enclosed into a polygon.
According to any one of the touch positioning systems of the present disclosure, the display includes a display panel and a frame wrapped around an edge of the display panel;
the information collectors are fixed on the outer wall of the frame, and the collecting end of each information collector protrudes out of the display surface of the display panel.
The touch positioning system according to any one of the disclosure, wherein the display comprises a display panel, and the plurality of information collectors are fixed at edges of a display surface of the display panel.
According to any one of the touch positioning systems of the present disclosure, the information collector is an optical sensor, and the positioning information includes optical positioning information;
The optical sensor is used for collecting optical positioning information and transmitting the optical positioning information to the algorithm module, and the algorithm module is used for determining the position information according to a plurality of optical positioning information.
The touch positioning system according to any one of the present disclosure, further comprising a stylus, the stylus comprising a controller and a signal transmitter, the positioning information comprising a positioning signal;
the controller is electrically connected with the signal transmitter, the controller is used for controlling the signal transmitter to transmit positioning signals when the touch pen touches the display, the information collector is used for collecting the positioning signals and transmitting the positioning signals to the algorithm module, and the algorithm module is used for determining the position information according to the signal attenuation intensity of a plurality of positioning signals.
According to any one of the touch positioning systems of the present disclosure, the working frequency bands of the information transmitter and the signal receiver are the same, and are greater than or equal to 2.4GHz and less than or equal to 2.4835GHz.
The touch positioning system according to any of the disclosure, the display further comprises a discharge circuit for electrically connecting with the stylus to charge the stylus.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. It will be apparent to those of ordinary skill in the art that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived from them without undue effort.
Fig. 1 is a schematic structural diagram of a touch system according to an embodiment of the disclosure.
Fig. 2 is a schematic structural diagram of another touch system according to an embodiment of the disclosure.
Fig. 3 is a schematic structural diagram of a touch system applied to a display according to an embodiment of the disclosure.
Fig. 4 is a schematic structural diagram of another touch system applied to a display according to an embodiment of the disclosure.
Fig. 5 is a schematic structural diagram of a touch positioning system according to an embodiment of the disclosure.
Fig. 6 is a schematic structural diagram of another touch positioning system according to an embodiment of the disclosure.
Fig. 7 is a schematic structural diagram of another touch positioning system according to an embodiment of the disclosure.
Reference numerals:
10. a touch control system; 20. a touch positioning system;
1. an information collector; 2. an algorithm module; 3. a stylus; 4. a processor; 5. a display;
11. a signal receiver;
31. a controller; 32. a signal transmitter; 33. a control switch; 34. an option switch; 35. a first communication module; 36. a battery pack; 37. a charging circuit;
41. a first processor; 42. a second processor;
51. a display panel; 52. a frame; 53. a second communication module; 54. a discharge circuit.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus detailed descriptions thereof will be omitted. Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale.
The terms "a," "an," "the," "said" and "at least one" are used to indicate the presence of one or more elements/components/etc.; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. in addition to the listed elements/components/etc.; the terms "first," "second," and "third," etc. are used merely as labels, and do not limit the number of their objects.
The disclosed embodiment provides a touch system 10, as shown in fig. 1, the touch system 10 includes a plurality of information collectors 1 and an algorithm module 2, the plurality of information collectors 1 are used for being fixed on an outer surface of a display 5 (not shown in the figure), and each information collector 1 is used for collecting positioning information when performing touch operation on the display 5; the algorithm module 2 is in communication connection with the plurality of information collectors 1, and is configured to obtain a plurality of positioning information, and determine position information when performing a touch operation on the display 5 according to the plurality of positioning information.
In the embodiment of the disclosure, when the display 5 is in touch operation, the positioning information can be acquired by the plurality of information collectors 1 and transmitted to the algorithm module 2, and then the algorithm module 2 determines the position information when the display 5 is in touch operation according to the plurality of positioning information, so that the touch operation on the display 5 is convenient to realize.
The plurality of information collectors 1 may be fixed to the frame 52 of the display 5 by adhesion, or may be fixed to the display panel 51 of the display 5 by suction. Of course, the fixing may be performed on the frame 52 and/or the display panel 51 of the display 5 in other manners, which is not limited in the embodiment of the present disclosure. The mounting position of the information collector 1 on the display 5 can be described with reference to the following disclosed embodiments.
The algorithm module 2 is configured to cooperate with the display 5, so that after the algorithm module 2 determines the position information when the touch operation is performed on the display 5, the display 5 can obtain the position information, and display a positioning icon at a touch position corresponding to the position information. For example, the display 5 may simulate a cursor point at the touch location.
It should be noted that the algorithm module 2 may be configured as a post-mounted device of the display 5, that is, the algorithm module 2 is configured on the existing display 5 without the touch function, so as to implement the touch function of the existing display 5. In this way, the conventional display 5 can be prevented from being replaced by the touch operation. Of course, the algorithm module 2 may also be configured as a primary device of the display 5, that is, the algorithm module 2 is configured during the manufacturing process of the display 5, so as to implement the touch function of the display 5. In this way, compared with the existing touch-control integrated machine, the display 5 using the touch-control system 10 can maximally save cost.
The algorithm module 2 may be a carrier in which the above-mentioned operation process "position information when performing a touch operation on the display 5 is determined according to a plurality of positioning information" is implanted. The algorithm module 2 and the plurality of information collectors 1 can be connected in a wired manner (such as through a USB line) or in a wireless manner (such as through a radio signal connection), so as to realize communication, and further realize transmission of positioning information between the information collectors 1 and the algorithm module 2.
In the embodiment of the disclosure, as shown in fig. 1, the touch system 10 further includes a processor 4, and the processor 4 includes an algorithm module 2. That is, the processor 4 includes a carrier in which an operation process "position information when a touch operation is performed on the display 5 is determined from a plurality of pieces of positioning information" is embedded.
The processor 4 may be a processor configured separately for the above-described operation process, or may be a processor included in the display 5 itself.
When the processor 4 is a separately configured processor, the processor 4 may be fixed to the display 5 and communicatively coupled to the processor of the display 5 itself; it is also possible not to be fixedly connected to the processor of the display 5 itself, as long as communication can be maintained between the processor 4 and the processor of the display 5 itself.
In the embodiment of the disclosure, the information collector 1 may be an optical sensor, and the positioning information collected by the information collector may be optical positioning information, that is, the positioning information includes optical positioning information. Thus, the optical positioning information can be collected through the optical sensor and transmitted to the algorithm module 2, and the algorithm module 2 further determines the position information according to the collected multiple pieces of optical positioning information; of course, the information collector 1 may also be the signal receiver 11, and the positioning information collected by the information collector may be the positioning signal, that is, the positioning information includes the positioning signal. In this way, the positioning signal (radio positioning signal) can be received by the signal receiver 11, and the algorithm module 2 determines the position information according to the signal attenuation intensities of the received positioning signals.
In the case where the information collector 1 is an optical sensor, the optical sensor may be an infrared sensor, such as an infrared camera (at this time, optical positioning information collected by the infrared camera is image positioning information), or may be other sensors, such as an acoustic wave sensor and a light beam sensor, as long as the optical positioning information can be collected, which is not limited in the embodiment of the present disclosure.
In the case that the information collector 1 is the signal receiver 11, as shown in fig. 2, the touch system 10 further includes a stylus 3, and the stylus 3 includes a controller 31 and a signal transmitter 32; the controller 31 is electrically connected with the signal transmitter 32, the controller 31 is used for controlling the signal transmitter 32 to transmit a positioning signal when the stylus 3 touches the display 5, and the signal receiver 11 is used for receiving the positioning signal and transmitting the positioning signal to the algorithm module 2.
Thus, when the stylus 3 performs a touch operation on the display 5, the controller 31 controls the signal transmitter 32 to transmit the positioning signal, and the signal receiver 11 receives the positioning signal and transmits the received positioning signal to the algorithm module 2.
The signal transmitters 32 and the signal receivers 11 have the same working frequency band, so that the signal receivers 11 can receive the position signals transmitted by the signal transmitters 32. Optionally, the operating frequency bands of the signal transmitter 32 and the signal receiver 11 are the same, and are greater than or equal to 2.4GHz and less than or equal to 2.4835GHz. In this way, the signal wave between the signal transmitter 32 and the signal receiver 11 is guaranteed to have the advantages of low frequency and long wavelength. The operating frequency bands of the signal transmitter 32 and the signal receiver 11 are each 2.4GHz, for example.
In some embodiments, as shown in fig. 2, the stylus 3 further includes a control switch 33, where the control switch 33 is electrically connected to the controller 31 and the signal emitter 32, respectively, and the control switch 33 can be kept in a conductive state when the stylus 3 touches the display 5, and the controller 31 is used to control the signal emitter 32 to emit the positioning signal when the control switch 33 is conductive.
Thus, the signal transmitter 32 can transmit the positioning signal only when the control switch 33 is in the on state, thereby ensuring the accuracy of the positioning signal and avoiding the waste of electric energy caused by continuous operation of the signal transmitter 32.
The control switch 33 may be a push button switch, a touch switch or a pressure sensing switch. When the control switch 33 is a push button switch or a touch switch, the control switch 33 may be located at any position of the body of the stylus 3; when the control switch 33 is a pressure-sensitive switch, the stylus 3 includes a body, the nib position of the body has a through hole, the pressure-sensitive switch has a pressure-sensitive end, the pressure-sensitive switch is located inside the body, and at least part of the pressure-sensitive end extends out of the through hole.
For the case that the control switch 33 is a pressure-sensitive switch, when the user uses the stylus 3 to operate the display 5, the user will necessarily touch the display 5 through the pen tip, at this time, an acting force is necessarily generated between the pen tip and the display 5, and then the pressure-sensitive switch can be caused to be turned on under the acting force, at this time, the positioning signal emitted by the signal emitter 32 can more represent the position information of the operation position of the stylus 3 on the display 5, so as to avoid the situation that the positioning signal emitted by the signal emitter 32 is inaccurate when the stylus 3 does not touch the display 5.
In the embodiment of the present disclosure, as shown in fig. 2, the stylus 3 further includes a battery pack 36 and a charging circuit 37; the controller 31 is electrically connected to the battery pack 36 and the charging circuit 37, and the charging circuit 37 is electrically connected to an external power source to charge the battery pack 36.
The battery pack 36 is directly electrically connected to the charging circuit 37 to directly charge the battery pack 36 after the charging circuit 37 is electrically connected to the external power source, or is electrically connected to the charging circuit 37 through the controller 31, so as to conduct the electrical connection between the charging circuit 37 and the battery pack 36 when the controller 31 detects that the charging circuit 37 is connected to the external power source, thereby charging the battery pack 3616.
The charging circuit 37 may be a conventional wired charging circuit 37, such as a USB interface, or may be a wireless charging circuit 37, such as a magnetic charging circuit 37. Alternatively, the charging circuit 37 may be electrically connected to the display 5. That is, the display 5 has a discharge circuit 54, which is described in detail in the following explanation of the touch location system 20.
In the embodiment of the present disclosure, as shown in fig. 2, the stylus 3 further includes an option switch 34 and a first communication module 35; the controller 31 is electrically connected to the option switch 34 and the first communication module 35, the option switch 34 is configured to generate a trigger signal and send the trigger signal to the controller 31, the controller 31 is configured to generate a control signal when receiving the trigger signal, and send the control signal to the display 5 through the communication module, where the control signal is configured to specify the display 5 to perform a corresponding action.
The option switch 34 may be a physical key, for example, an on key corresponding to an on command, an off key corresponding to an off command, a confirm key corresponding to a confirm command, or the like, where the command to be executed may be confirmed by a single click operation on a different key. Of course, different commands may share one key, and at this time, the number of times, duration, etc. of the key being pressed may be detected to confirm the command to be executed. For example, an operation in which a key is pressed twice consecutively corresponds to an open command, an operation in which a key is pressed three times consecutively corresponds to a close command, and an operation in which the duration of the key being pressed is longer than 3 seconds corresponds to a confirm command.
When the option switch 34 detects a single click, continuous pressing, and continuous pressing of a trigger signal corresponding to a command, for example, one press of a trigger signal key corresponding to an open command is generated, two continuous presses of a trigger signal key corresponding to a close command are generated, and the trigger signal corresponding to the command is sent to the controller 31, at this time, the controller 31 generates a control signal on control signal, a control signal off control signal, and a control signal confirm according to the trigger signal corresponding to the command, and sends the control signal off control signal confirm the control signal through the communication module, so that after determining the position information when the stylus 3 performs a touch operation on the display 5, control on the display 5 can be realized.
In some embodiments, the distance of the signal emitter 32 from the tip of the stylus 3 is equal to the thickness of the signal receiver 11. Thus, after the signal receiver 11 is mounted on the display 5, the signal transmission path between the signal transmitter 32 and the signal receiver 11 can be ensured to be parallel to the surface of the display 5, so that the accuracy of position information determined by the subsequent display 5 is ensured.
Of course, the distance from the signal emitter 32 to the tip of the stylus 3 may be different from the thickness of the signal receiver 11, and in this case, when the signal receiver 11 is mounted on the display 5, it is only necessary to ensure that the signal transmission path between the signal emitter 32 and the signal receiver 11 is parallel to the surface of the display 5. Of course, the signal transmission path between the signal emitter 32 and the signal receiver 11 may also have a small angle with the surface of the display 5, such as 1 degree, 1.5 degrees, etc., which is not limited by the embodiments of the present disclosure.
In the presently disclosed embodiment, algorithm module 2 is configured to: acquiring positioning information acquired by a plurality of information collectors 1; determining the linear distance between the touch position and the information collectors 1 when the display 5 is in touch operation according to the positioning information; and determining the position information of the touch position according to the linear distances.
Next, detailed explanation is made on specific methods of the positioning information obtained by the algorithm module 2 being the positioning signal and the optical positioning information, respectively. Of course, the location information may be determined by other methods in addition to the methods explained in the embodiments of the present disclosure, which are not limited thereto.
Taking the information collector 1 as a signal receiver 11, and the signal receiver 11 receiving a positioning signal as an exampleIn some embodiments, the algorithm module 2 stores the initial signal strength of the positioning signal transmitted by the signal transmitter 32 of the stylus 3 in advance, and after the signal receivers 11 are mounted on the display 5, a rectangular coordinate system may be established in advance according to the size of the display 5, and the position coordinates of the plurality of signal receivers 11 in the rectangular coordinate system may be determined, that is, the position coordinates of each signal receiver 11 may be stored in the algorithm module 2 in advance.
In this way, after the positioning signals received by the plurality of signal receivers 11 are obtained, the signal intensity of each positioning signal is determined, the signal intensity of each positioning signal is differed from the initial signal intensity, so as to obtain signal attenuation intensities corresponding to the plurality of positioning signals one by one, then the linear distance between the touch position of the stylus 3 on the display 5 and the plurality of signal receivers 11 is respectively determined according to the plurality of signal attenuation intensities, and then the position information of the stylus 3 when performing the touch operation on the display panel 51 is determined according to the position coordinates of each signal receiver 11 and the plurality of linear distances.
Wherein for each signal attenuation intensity, the linear distance between the touch position of the stylus 3 on the display 5 and the corresponding signal receiver 11 can be determined by the following formula (1).
d＝10 [(abs(RSSI)-A)/(10*n)] (1)
In the above formula (1), d denotes a straight line distance, RSSI denotes a signal attenuation intensity, abs (RSSI) denotes an absolute value of the signal attenuation intensity, a denotes a signal attenuation intensity when the signal transmitter 32 is spaced apart from the signal receiver 11 by a unit distance, and a is 48, and n denotes an environmental attenuation factor, for example. Since there is no obstruction between the signal transmitter 32 and the signal receiver 11 and there is only a display screen around, n can be obtained by performing inverse solution through a preset linear distance.
For example, as shown in fig. 3, for the first signal receiver 11 of the plurality of signal receivers 11, the long side size a and the wide side size b of the display 5 are preset, the first signal receiver 11 is located at the lower left corner of the display 5, and the stylus 3 is operated at the diagonal intersection O of the display 5, that is, the touch position S of the stylus 3 on the display 5 is located at the diagonal intersection O of the display 5. At this time, the linear distance d determined according to the dimensions of the long side and the wide side of the display 5 is Thus, in the case of a being known, n is 2.0 by performing an inverse solution in combination with the determined signal attenuation intensity corresponding to the first signal receiver 11.
The number of signal receivers 11 included in the touch system 10 may be two or more.
When two signal receivers 11 are included, the two signal receivers 11 are fixed at the same side of the display 5 at intervals, and at least one of the two signal receivers 11 is located at a corner of the display 5. Therefore, a group of initial position information can be determined according to the two position coordinates and the two linear distances, and then the group of initial position information is determined to be the position information of the touch position.
When more than two signal receivers 11 are included, the touch system 10 includes four signal receivers 11, as shown in fig. 4, and establishes a rectangular coordinate system with a lower left corner of the display panel 51 as an origin of coordinates, and with a horizontal direction (a direction of extension of the long side) as an x-axis and a vertical direction (a direction of extension of the wide side) as a y-axis, respectively. At this time, the four signal receivers 11 are respectively fixed at four corners of the display 5, and at this time, the position coordinates of the first signal receiver 11, the second signal receiver 11, and the third signal receiver 11 are respectively (0, 0), (0) and (0, b), respectively, and the position coordinates of the fourth signal receiver 11, respectively, are respectively (a, b), among the four signal receivers 11. In this way, multiple sets of initial position information can be determined according to the position coordinates of the four signal receivers 11 and the corresponding four linear distances, and then the position information of the stylus 3 when operating on the display panel 51 can be determined according to the multiple sets of initial position information.
Any three of the four signal receivers 11 can enclose a triangle, and two adjacent corners of the four signal receivers 11 located on the same side of the frame 52 can be divided to obtain multiple groups of signal receivers 11, so as to obtain corresponding multiple groups of position coordinates. The plurality of position coordinates of any two of the plurality of sets of position coordinates are not all the same, and there are at least two sets of position coordinates including the same at least one position coordinate.
Illustratively, the four position coordinates and the four straight line distances are divided into two sets of position coordinates and two corresponding sets of straight line distances, the first set of position coordinates including three position coordinates of the first signal receiver 11, the second signal receiver 11, and the third signal receiver 11; the first set of straight-line distances comprises distances between the first signal receiver 11, the second signal receiver 11, and the third signal receiver 11, respectively, and the operating position. The second set of position coordinates includes three position coordinates of the second signal receiver 11, the third signal receiver 11, and the fourth signal receiver 11; the first set of straight line distances includes distances between the second signal receiver 11, the third signal receiver 11, and the fourth signal receiver 11 and the touch position of the stylus 3 on the display panel 51, respectively.
In this way, through the first set of position coordinates and the first set of straight line distances, the corresponding first set of initial coordinates is determined according to the following formulas (2), (3) and (4).
In the above formulas (2), (3) and (4), d 1 、d 2 、d 3 Respectively, the first signal receiver 11, the second signal receiver 11, the third signal receiver 11 and the touch position, X, Y is the abscissa and the ordinate of the first set of initial position information, X 1 、Y 1 Respectively the abscissa and the ordinate, X of the position information of the first signal receiver 11 2 、Y 2 Respectively the abscissa and the ordinate, X of the position information of the second signal receiver 11 3 、Y 3 Respectively, the abscissa and the ordinate of the position information of the third signal receiver 11.
Similarly, a corresponding second set of initial position information is determined by the second set of position coordinates and the second set of straight line distances.
After obtaining the multiple sets of initial position information, averaging the abscissa of each set of initial position information to obtain the abscissa of the touch position of the stylus 3 on the display 5, and averaging the ordinate of each set of initial position information to obtain the ordinate of the touch position of the stylus 3 on the display panel 51, so that the position information of the stylus 3 when performing the touch operation on the display panel 51 can be obtained.
Taking the information collector 1 as an optical sensor, and taking the image positioning information collected by the optical sensor as an exampleIn some embodiments, a plurality of markers (such as indicator lights) are distributed at intervals on the edge of the display 5, and after a plurality of optical sensors are installed on the display 5, the display 5 can be pre-measured according to the ruleAnd establishing a rectangular coordinate system, determining the position coordinates of a plurality of optical sensors in the rectangular coordinate system, determining the actual distance between each optical sensor and each marker, and further storing the position coordinates of each optical sensor and the actual distance between each optical sensor and each marker in an algorithm module 2 in advance, wherein the image positioning information acquired by the optical sensors comprises a touch object (such as a finger and a touch pen 3) and the markers.
In this way, after the image positioning information acquired by the plurality of optical sensors is acquired, the image positioning information can be subjected to operations such as binarization processing and denoising processing, so as to identify the touch object and the target identifier in the image positioning information, and determine the image distance between the optical sensor and the touch object and the target identifier respectively, and further, the actual distance between the optical sensor and the touch object can be determined through proportional operation by combining the actual distance between the optical sensor and the target identifier, so that the linear distance between the touch position of the touch object on the display 5 and the plurality of optical sensors can be obtained. And then, according to the position coordinates of each optical sensor and the linear distances, determining the position information of the touch position of the touch object when the touch operation is performed on the display panel 51.
The method for determining the position information of the touch position by combining the position coordinates of the plurality of optical sensors and the corresponding plurality of linear distances may refer to the method for determining the position information according to the position coordinates of the plurality of signal receivers 11 and the plurality of linear distances, which is not described in detail in the embodiment of the present disclosure.
Embodiments of the present disclosure provide a touch location system 20. As shown in fig. 5 or 6, the touch positioning system 20 includes: a first processor 41 and a plurality of information collectors 1; each information collector 1 is fixedly connected with the display 5 and is in communication connection with the first processor 41. The information collector 1 is configured to collect positioning information when performing a touch operation on the display 5, and the first processor 41 includes an algorithm module 2, where the algorithm module 2 is configured to obtain a plurality of positioning information, and determine position information when performing a touch operation on the display 5 according to the plurality of positioning information.
In the embodiment of the disclosure, when the display 5 is in touch operation, the positioning information can be acquired by the plurality of information collectors 1 and transmitted to the algorithm module 2, so that the algorithm module 2 determines the position information when the display 5 is in touch operation according to the plurality of positioning information, and further the touch operation on the display 5 is convenient to realize.
The first processor 41 and the plurality of information collectors 1 may be connected by a wire (such as a USB wire), or may be connected by a wireless (such as a radio signal connection), so as to implement communication, and further implement transmission of positioning information between the information collectors 1 and the first processor 41.
In the embodiment of the present disclosure, the first processor 41 may be a processor that may be included in the display 5 itself, and also be a processor configured separately for the above algorithm module 2.
When the first processor 41 is a processor included in the display 5, i.e. as shown in fig. 5, the touch positioning system 20 further includes the display 5, and the display 5 includes the first processor 41. The first processor 41 may then control the display 5 to perform a corresponding operation according to the determined position information.
The first processor 41 may control the display 5 to display a positioning icon at a corresponding position according to the position information, so that the user can determine the actual position of the current touch operation.
In addition, the information collector 1 may transmit the acquisition time of the positioning information to the first processor 41 at the same time, or the first processor 41 may also generate the acquisition time corresponding to the positioning information at the same time when acquiring the positioning information transmitted by the information collector 1. At this time, the first processor 41 may determine at least one position information according to a plurality of positioning information within a period of time, and determine at least one position information and at least one time information corresponding to one, and further may determine an operation (such as a single click corresponding operation, a double click corresponding operation, a multi-finger corresponding operation, a sliding track corresponding operation, etc.) performed by the display 5 according to the at least one position information and the at least one time information.
For example, the first processor 41 determines that a position information is obtained within a period of time, and at this time, the first processor 41 may determine that it is necessary to control the display 5 to perform an operation corresponding to a click; the first processor 41 determines that two pieces of position information are obtained in a period of time, the two pieces of position information are the same or have smaller difference, and the corresponding pieces of time information are different, and at this time, the first processor 41 may determine that the display 5 needs to be controlled to perform the operation corresponding to the double click; the first processor 41 determines that two pieces of position information are obtained in a period of time, the two pieces of position information are different and the corresponding pieces of time information are the same, and at this time, the first processor 41 may determine that the display 5 needs to be controlled to perform the operation corresponding to the double fingers; the first processor 41 determines that a plurality of pieces of position information (for example, the number is greater than 5, 8 or 10) are obtained in a period of time, the plurality of pieces of position information are different, and the corresponding pieces of time information are different, and at this time, the first processor 41 may determine that it is necessary to control the display 5 to perform an operation corresponding to the sliding track.
When the first processor 41 is a separately configured processor, as shown in fig. 6, the display 5 further includes a second processor 42, the second processor 42 being communicatively connected to the first processor 41, respectively; the second processor 42 is configured to obtain the position information, so as to control the display 5 to perform a corresponding operation.
The first processor 41 may be fixed on the display 5, or may not be fixedly connected to the display 5, as long as communication between the first processor 41 and the second processor 42 can be maintained.
After the second processor 42 obtains the location information, the display 5 may be controlled to display a positioning icon at a corresponding location according to the location information, so as to facilitate the user to determine the actual location of the current touch operation.
In addition, the information collector 1 may transmit the acquisition time of the positioning information to the first processor 41 at the same time, or the first processor 41 may also generate the acquisition time corresponding to the positioning information at the same time when acquiring the positioning information transmitted by the information collector 1. At this time, the first processor 41 may determine one or more pieces of location information according to a plurality of pieces of location information within a period of time, and determine one or more pieces of time information to which the one or more pieces of location information respectively correspond. That is, the first processor 41 is further configured to determine at least one location information and at least one time information corresponding to one by one when performing a touch operation on the display 5 according to the plurality of positioning information.
In this manner, the second processor 42 may acquire at least one location information and at least one time information in a one-to-one correspondence, and control the display 5 to perform a corresponding operation according to the at least one location information and the at least one time information.
The specific process of the second processor 42 controlling the display 5 to perform the corresponding operation according to the at least one location information and the at least one time information may refer to the specific process of the first processor 41 controlling the display 5 to perform the corresponding operation according to the at least one location information and the at least one time information, which is not described in detail in the embodiments of the present disclosure.
It should be noted that, in the case where the first processor 41 is a separately configured processor, the first processor 41 may be configured as a post-mounted device of the display 5, that is, the first processor 41 is configured on the existing display 5 without the touch function, so as to implement the touch function of the existing display 5. In this way, the conventional display 5 can be prevented from being replaced by the touch operation. When the first processor 41 is a processor included in the display 5, the first processor 41 may also be configured as a primary device of the display 5, that is, the first processor 41 is configured during the manufacturing process of the display 5, so as to implement the touch function of the display 5. Thus, the touch positioning system 20 can maximize cost saving relative to the conventional touch integrated machine.
In the embodiment of the disclosure, the information collector 1 may be an optical sensor, and the positioning information collected by the information collector may be optical positioning information, that is, the positioning information includes optical positioning information. In this way, the optical positioning information can be collected by the optical sensor and transmitted to the algorithm module 2, and then the algorithm module 2 included in the first processor 41 determines the position information when the touch operation is performed on the display 5 according to the collected multiple optical positioning information; of course, the information collector 1 may also be the signal receiver 11, and the positioning information collected by the information collector may be the positioning signal, that is, the positioning information includes the positioning signal. In this way, the positioning signal (radio positioning signal) may be received by the signal receiver 11, and the algorithm module 2 included in the first processor 41 may further determine the position information when performing the touch operation on the display 5 according to the attenuation intensities of the received positioning signals.
In the case where the information collector 1 is an optical sensor, the optical sensor may be an infrared sensor, such as an infrared camera (at this time, optical positioning information collected by the infrared camera is image positioning information), or may be other sensors, such as an acoustic wave sensor and a light beam sensor, as long as the optical positioning information can be collected, which is not limited in the embodiment of the present disclosure.
In the case where the information collector 1 is the signal receiver 11, as shown in fig. 7, the touch positioning system 20 further includes a stylus 3, where the stylus 3 includes a controller 31 and a signal transmitter 32; the controller 31 is electrically connected with the signal transmitter 32, the controller 31 is used for controlling the signal transmitter 32 to transmit a positioning signal when the touch control pen 3 touches the display 5, the information collector 1 is a signal receiver 11, and the signal receiver 11 is used for collecting the positioning signal and transmitting the positioning signal to the algorithm module 2. Optionally, the signal transmitter 32 and the signal receiver 11 have the same operating frequency band, and are greater than or equal to 2.4GHz and less than or equal to 2.4835GHz. In this way, the signal wave between the signal transmitter 32 and the signal receiver 11 is guaranteed to have the advantages of low frequency and long wavelength. The signal transmitter 32 and the signal receiver 11 have the same operating frequency band, and are 2.4GHz, for example.
For two cases where the information collector 1 is an optical sensor and the signal receiver 11, a specific method for determining the position information of the touch operation on the display 5 may be described with reference to the above embodiment, which is not described in detail in this disclosure.
In the embodiment of the disclosure, when the stylus 3 is used with the display 5, in order to ensure the cruising ability of the stylus 3, as shown in fig. 7, the display 5 further includes a discharging circuit 54, and the discharging circuit 54 is electrically connected with the stylus 3 to charge the stylus 3. In this way, when the stylus 3 is not in use, the stylus 3 can be electrically connected to the discharge circuit 54 of the display 5, thereby charging the stylus 3.
Optionally, the discharging circuit 54 is a wireless discharging circuit 54, such as a magnetic attraction discharging circuit 54, and accordingly, in combination with the above, the charging circuit 37 included in the stylus 3 is a magnetic attraction charging circuit 37. In this way, only the magnetic blocks included in the charging circuit 37 and the magnetic blocks included in the discharging circuit 54 of the stylus 3 are required to magnetically attract, so that the stylus 3 can be charged, and the operation is simplified. The display 5 has a carrying table, so that the stylus 3 can be carried by the carrying table, so as to avoid the situation that the stylus 3 falls off due to weak magnetic attraction.
In the embodiment of the disclosure, when the stylus 3 is used with the display 5, in order to facilitate the control operation of the display 5 by the stylus 3, as shown in fig. 7, the display 5 further includes a second communication module 53, and the second communication module 53 is electrically connected with a processor included in the display 5 itself; the second communication module 53 is configured to receive the control signal and transmit the control signal to a processor included in the display 5 itself, where the processor included in the display 5 itself is configured to control the display 5 to perform an operation corresponding to the control signal.
In connection with the examples described in the above embodiments, the control signal sent by the stylus 3 may be an on control signal, an off control signal, or an acknowledge control signal. In this way, when the second communication module 53 of the display 5 receives the control signal sent by the stylus 3, the processor included in the display 5 itself may control the display 5 to perform corresponding operations according to the control signal to turn on the control signal, turn off the control signal, and confirm the control signal.
In connection with the above, when the first processor 41 is a separately configured processor, that is, the display 5 itself includes the second processor 42, the second communication module 53 is electrically connected to the second processor 42, so as to receive the control signal through the second processor 42 and control the display 5 to perform an operation corresponding to the control signal; when the first processor 41 is a processor included in the display 5 itself, the second communication module 53 is electrically connected to the first processor 41 to receive the control signal through the first processor 41 and control the display 5 to perform an operation corresponding to the control signal.
In the embodiment of the present disclosure, the number of the information collectors 1 included in the touch positioning system 20 may be 2 or more.
When the touch positioning system 20 includes 2 information collectors 1, the display 5 is rectangular, the two information collectors 1 are fixed on the same side of the display 5 at intervals, and at least one of the two information collectors 1 is located at a corner of the display 5.
When the touch positioning system 20 includes 3 or more information collectors 1, the connection lines of the positions of the information collectors 1 can be enclosed into a polygon. For example, the plurality of information collectors 1 can enclose a triangle, a quadrilateral rectangle or a diamond, a pentagon, or the like.
Taking the case that a plurality of information collectors 1 can be enclosed into a rectangle as an example, the touch positioning system 20 includes four information collectors 1, and the four information collectors 1 are respectively installed at four corners of the display 5.
In some embodiments, as shown in fig. 5 or fig. 6, the display 5 includes a display panel 51 and a frame 52 wrapped around the edge of the display panel 51, the information collectors 1 are fixed on the outer wall of the frame 52, and the collecting end of each information collector 1 protrudes from the display surface of the display panel 51.
The information collector 1 can be externally arranged, and meanwhile, the information collector 1 can collect position information, so that the manufacture of the display 5 is not affected; of course, the information collector 1 may also be installed in a built-in manner, so that the structure of the display 5 may be adjusted to facilitate the installation of the information collector 1 during the manufacturing process of the display 5.
In some embodiments, the display 5 includes a display panel 51, and the plurality of information collectors 1 are fixed to edges of a display surface of the display panel 51.
The information collector 1 may be detachably fixed to the display panel 51. Thus, in order to facilitate the installation of the information collector 1 by a subsequent user, the display panel 51 may display a fixed identifier when displaying a picture, so as to ensure the accuracy of the position installation of the information collector 1.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

Claims (20)

  1. A touch system, comprising:
    the information acquisition devices are used for being fixed on the outer surface of the display, and each information acquisition device is used for acquiring positioning information when the display is subjected to touch operation;
    the algorithm module is in communication connection with the information collectors, and is used for acquiring the positioning information and determining the position information when the display is subjected to touch operation according to the positioning information.
  2. The touch system of claim 1, wherein the information collector is an optical sensor and the positioning information comprises optical positioning information;
    the optical sensor is used for collecting optical positioning information and transmitting the optical positioning information to the algorithm module, and the algorithm module is used for determining the position information according to a plurality of optical positioning information.
  3. The touch system of claim 1, wherein the touch system further comprises a stylus comprising a controller and a signal transmitter, the positioning information comprising a positioning signal;
    the controller is electrically connected with the signal transmitter, the controller is used for controlling the signal transmitter to transmit a positioning signal when the touch pen touches the display, the information collector is a signal receiver, the signal receiver is used for receiving the positioning signal and transmitting the positioning signal to the algorithm module, and the algorithm module is used for determining the position information according to the signal attenuation intensity of a plurality of positioning signals.
  4. The touch system of claim 3, wherein the information transmitter and the signal receiver have the same operating frequency band, and are greater than or equal to 2.4GHz and less than or equal to 2.4835GHz.
  5. The touch system of claim 3 or 4, wherein the stylus further comprises a control switch;
    the control switch is respectively and electrically connected with the controller and the signal transmitter, the control switch can be kept in a conducting state when the touch pen touches the display, and the controller is used for controlling the signal transmitter to transmit a positioning signal when the control switch is conducted.
  6. The touch system of claim 5, wherein the stylus comprises a body having a through hole at a tip position;
    the control switch is a pressure sensing switch and is provided with a pressure sensing end, the pressure sensing switch is positioned inside the pen body, and at least part of the pressure sensing end extends out of the through hole.
  7. The touch system of claim 1, wherein the algorithm module is configured to:
    acquiring positioning information acquired by a plurality of information collectors; respectively determining the linear distance between the touch position and the information collectors when the display is in touch operation according to the positioning information; and determining the position information of the touch position according to the linear distances.
  8. The touch system of claim 1 or 7, wherein the touch system comprises a processor including the algorithm module.
  9. A touch positioning system, wherein the touch positioning system comprises:
    a first processor;
    the information acquisition devices are used for being fixedly connected with the display and are all in communication connection with the first processor;
    the information collector is used for collecting positioning information when the display is subjected to touch operation, and the first processor comprises an algorithm module which is used for obtaining a plurality of positioning information and determining position information when the display is subjected to touch operation according to the positioning information.
  10. The touch location system of claim 9, wherein the touch location system comprises a display;
    the display comprises the first processor, and the first processor is used for controlling the display to execute corresponding operations according to the position information.
  11. The touch location system of claim 9, wherein the touch location system comprises a display;
    the display comprises a second processor which is in communication connection with the first processor, and the second processor is used for acquiring the position information so as to control the display to execute corresponding operations.
  12. The touch location system of claim 11, wherein the first processor is further configured to determine at least one of the location information and at least one time information according to a plurality of the location information, and the second processor is configured to obtain at least one of the location information and at least one of the time information, and control the display to perform a corresponding operation according to at least one of the location information and at least one of the time information.
  13. The touch location system of any of claims 10-12, wherein the display is rectangular, the touch location system comprising 2 of the information collectors;
    The two information collectors are fixed on the same side of the display at intervals, and at least one of the two information collectors is positioned at the corner of the display.
  14. The touch positioning system according to any one of claims 10-12, wherein the touch positioning system comprises 3 or more than 3 information collectors, and a line connecting positions of the information collectors can be enclosed into a polygon.
  15. The touch positioning system of any of claims 10-12, wherein the display comprises a display panel and a frame wrapped around an edge of the display panel;
    the information collectors are fixed on the outer wall of the frame, and the collecting end of each information collector protrudes out of the display surface of the display panel.
  16. The touch location system of any of claims 10-12, wherein the display comprises a display panel, the plurality of information collectors being secured to edges of a display surface of the display panel.
  17. The touch location system of any of claims 9-12, wherein the information collector is an optical sensor and the location information comprises optical location information;
    the optical sensor is used for collecting optical positioning information and transmitting the optical positioning information to the algorithm module, and the algorithm module is used for determining the position information according to a plurality of optical positioning information.
  18. The touch location system of any of claims 10-12, wherein the touch system further comprises a stylus, the stylus comprising a controller and a signal transmitter, the location information comprising a location signal;
    the controller is electrically connected with the signal transmitter, the controller is used for controlling the signal transmitter to transmit positioning signals when the touch pen touches the display, the information collector is used for collecting the positioning signals and transmitting the positioning signals to the algorithm module, and the algorithm module is used for determining the position information according to the signal attenuation intensity of a plurality of positioning signals.
  19. The touch system of claim 18, wherein the information transmitter and the signal receiver have the same operating frequency band and are greater than or equal to 2.4GHz and less than or equal to 2.4835GHz.
  20. The touch location system of claim 18, wherein the display further comprises a discharge circuit for electrically connecting with the stylus to charge the stylus.
CN202280001030.7A 2022-04-29 2022-04-29 Touch system and touch positioning system Pending CN117321551A (en)

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US6717073B2 (en) * 2000-12-29 2004-04-06 Intel Corporation Wireless display systems, styli, and associated methods
CN101907951B (en) * 2009-06-05 2013-04-10 鸿富锦精密工业（深圳）有限公司 Touch control system
CN102375624A (en) * 2010-08-27 2012-03-14 刘中华 Ultrasonic handwriting board of flat plate structure
CN202486742U (en) * 2012-03-06 2012-10-10 姜林春 Display screen device for touch-screen computer or remote-control computer
CN103399683A (en) * 2013-07-29 2013-11-20 深圳超多维光电子有限公司 Electronic equipment, positioning method and positioning system
CN105677065B (en) * 2016-01-04 2019-01-01 京东方科技集团股份有限公司 Remote control touch device and method for display screen
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