CN112506383A

CN112506383A - Control method and device of infrared touch screen and infrared touch screen

Info

Publication number: CN112506383A
Application number: CN202011497797.2A
Authority: CN
Inventors: 于子鹏; 戴俊德
Original assignee: Anhui Hongcheng Opto Electronics Co Ltd
Current assignee: Anhui Hongcheng Opto Electronics Co Ltd
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2021-03-16
Also published as: WO2022126758A1

Abstract

The application discloses a control method and device of an infrared touch screen and the infrared touch screen, wherein the infrared touch screen comprises a first infrared touch screen and a second infrared touch screen; the first infrared touch screen and the second infrared touch screen both comprise connection interfaces; the control method comprises the following steps: detecting a first signal on the connection interface; under the condition that the first infrared touch screen and the second infrared touch screen are spliced, the first infrared touch screen is controlled to emit infrared rays and receive infrared rays during the ith scanning, and the second infrared touch screen is controlled to pause receiving infrared rays when the first infrared touch screen emits infrared rays; and when the second infrared touch screen receives the infrared rays, the first infrared touch screen is controlled to pause the emission of the infrared rays. According to the embodiment of the application, the problem that the determined touch position is inaccurate due to the fact that the infrared touch screen receives infrared rays sent by another infrared touch screen is avoided.

Description

Control method and device of infrared touch screen and infrared touch screen

Technical Field

The application belongs to the technical field of control, and particularly relates to a control method and device for an infrared touch screen and the infrared touch screen.

Background

As is well known, an infrared touch screen includes an infrared emitting device and an infrared receiving device mounted on a frame of the touch screen. Wherein the infrared emitting element and the infrared receiving element form an infrared detection network. When the medium performs a touch operation on the infrared touch screen, the touch position of the medium on the infrared touch screen can be determined according to the infrared ray received by the infrared receiving element.

However, when the two infrared touch panels are spliced together for displaying, if the infrared emitting element of one infrared touch panel emits infrared rays toward the receiving direction of the infrared receiving element of the other infrared touch panel, the infrared rays emitted by one infrared touch panel are received by the infrared receiving element of the other infrared touch panel, so that the touch position determined by the received infrared rays on the other infrared touch panel is inaccurate.

Disclosure of Invention

The embodiment of the application provides a control method and device for an infrared touch screen and the infrared touch screen, and can solve the technical problem that a touch position determined by infrared rays received by another infrared touch screen is inaccurate as the infrared rays emitted by one infrared touch screen are received by an infrared receiving element of another infrared touch screen.

On one hand, the embodiment of the application provides a control method of an infrared touch screen, wherein the infrared touch screen comprises a first infrared touch screen and a second infrared touch screen; the first infrared touch screen and the second infrared touch screen both comprise connecting interfaces, the connecting interfaces are used for realizing communication connection of the first infrared touch screen and the second infrared touch screen, and the first infrared touch screen and the second infrared touch screen both comprise a first infrared transmitting element for transmitting infrared rays to a first direction and a first infrared receiving element arranged opposite to the first infrared transmitting element;

the control method comprises the following steps:

detecting a first signal on a connection interface, wherein the first signal is used for representing whether the first infrared touch screen and the second infrared touch screen are spliced or not;

under the condition that the first infrared touch screen and the second infrared touch screen are spliced, controlling the first infrared touch screen and the second infrared touch screen as follows:

under the condition that the first infrared touch screen and the second infrared touch screen carry out ith scanning, controlling a first infrared transmitting element of the first infrared touch screen to transmit infrared rays, and a first infrared receiving element of the first infrared touch screen to receive the infrared rays, and under the condition that the first infrared transmitting element of the first infrared touch screen transmits the infrared rays, controlling a first infrared receiving element of the second infrared touch screen to suspend receiving the infrared rays;

under the condition that the first infrared touch screen and the second infrared touch screen perform scanning for the (i + 1) th time, controlling a first infrared transmitting element of the second infrared touch screen to transmit infrared rays, receiving the infrared rays by a first infrared receiving element of the second infrared touch screen, and controlling the first infrared transmitting element of the first infrared touch screen to pause transmitting the infrared rays under the condition that the first infrared receiving element of the second infrared touch screen receives the infrared rays, wherein i is an odd number or an even number.

On the other hand, the embodiment of the application provides a control device of an infrared touch screen, wherein the infrared touch screen comprises a first infrared touch screen and a second infrared touch screen; the first infrared touch screen and the second infrared touch screen both comprise connecting interfaces, the connecting interfaces are used for realizing communication connection of the first infrared touch screen and the second infrared touch screen, and the first infrared touch screen and the second infrared touch screen both comprise a first infrared transmitting element for transmitting infrared rays to a first direction and a first infrared receiving element arranged opposite to the first infrared transmitting element;

the controlling means of infrared touch-control screen includes:

the detection module is used for detecting a first signal on a connection interface, wherein the first signal is used for representing whether the first infrared touch screen and the second infrared touch screen are spliced or not;

the control module is used for controlling the first infrared touch screen and the second infrared touch screen under the condition that the first infrared touch screen and the second infrared touch screen are spliced as follows:

under the condition that the first infrared touch screen and the second infrared touch screen perform scanning for the (i + 1) th time, controlling a first infrared transmitting element of the second infrared touch screen to transmit infrared rays, receiving the infrared rays by a first infrared receiving element of the second infrared touch screen, and controlling the first infrared transmitting element of the first infrared touch screen to pause transmitting the infrared rays under the condition that the first infrared receiving element of the second infrared touch screen receives the infrared rays, wherein i is an odd number or an even number;

and the display module is used for performing touch display on the first infrared touch screen and the second infrared touch screen according to the ith scanning result and the (i + 1) th scanning result.

In another aspect, an embodiment of the present application provides an infrared touch screen, including:

the touch screen comprises a first infrared touch screen and a second infrared touch screen; first infrared touch-control screen and second infrared touch-control screen all include:

the connection interface is used for splicing the first infrared touch screen and the second infrared touch screen;

the infrared touch screen comprises a first infrared transmitting element for transmitting infrared rays to a first direction and a first infrared receiving element arranged opposite to the first infrared transmitting element, wherein the first infrared transmitting element is used for scanning the infrared touch screen;

and the controller is used for executing the control method of the infrared touch screen.

According to the control method and device for the infrared touch screen and the infrared touch screen, under the condition that the first infrared touch screen and the second infrared touch screen are spliced, the first infrared touch screen and the second infrared touch screen scan in the following modes: during the ith scanning, the first infrared touch screen scans normally, and under the condition that the first infrared touch screen emits infrared rays in the first direction, the first infrared receiving element of the second infrared touch screen, which is used for receiving the infrared rays in the first direction, stops receiving the infrared rays. In this case, the second infrared touch screen does not affect the infrared reception of the first infrared touch screen, and therefore, the touch position coordinate on the first infrared touch screen can be determined according to the scanning result of the first infrared touch screen. During the (i + 1) th scanning, the second infrared touch screen scans normally, and because the first infrared emission element of the first infrared touch screen suspends the emission of infrared rays, the influence of the infrared rays emitted by the first infrared touch screen received by the second infrared touch screen on the determination of the touch position coordinates on the second infrared touch screen is avoided. Therefore, the touch position coordinate on the second infrared touch screen can be accurately determined according to the scanning result of the (i + 1) th second infrared touch screen. By means of the control mode, the problem that infrared rays received by infrared touch screens cannot interfere with each other due to the fact that the infrared rays sent by one infrared touch screen are received by the infrared receiving element of the other infrared touch screen when the two screens are spliced is avoided, and therefore the accuracy of positioning touch positions of the infrared touch equipment is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 shows a schematic structural diagram of an infrared touch screen in the related art.

Fig. 2 shows a schematic diagram of an infrared detection network in the related art.

Fig. 3 shows a schematic diagram of a tiled display of two infrared touch screens in the related art.

Fig. 4 is a schematic flowchart illustrating an embodiment of a control method of an infrared touch screen provided in the present application.

FIG. 5 is a schematic view of an embodiment of the scene at the time of the ith scan provided by the present application.

Fig. 6 shows a scene diagram of an embodiment at the time of the i +1 th scan provided by the present application.

Fig. 7 shows a schematic structural diagram of an embodiment of an infrared touch screen provided by the present application.

Fig. 8 shows a schematic structural diagram of another embodiment of an infrared touch screen provided by the present application.

Fig. 9 is a schematic diagram illustrating an embodiment of a timing sequence for performing master-slave determination on an infrared touch screen provided by the present application.

Fig. 10 is a schematic flowchart illustrating a control method of an infrared touch screen according to another embodiment of the present disclosure.

Fig. 11 is a schematic diagram illustrating an embodiment of an application scenario of an infrared touch screen provided in the present application.

Fig. 12 is a schematic diagram illustrating another embodiment of an application scenario of an infrared touch screen provided in the present application.

Fig. 13 is a schematic structural diagram illustrating an embodiment of a control device of an infrared touch screen provided in the present application.

Detailed Description

Features and exemplary embodiments of various aspects of the present application will be described in detail below, and in order to make objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are intended to be illustrative only and are not intended to be limiting. It will be apparent to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by illustrating examples thereof.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

An infrared emitting element in an existing infrared touch screen is arranged on the right side of an outer frame of the touch screen, and an infrared receiving element corresponding to the infrared emitting element is arranged on the left side of the outer frame of the touch screen. Fig. 1 shows a schematic structural diagram of an infrared touch screen in the related art. As shown in fig. 1, the infrared touch screen includes an infrared emitting element and an infrared receiving element mounted on an outer frame of the touch screen. The letter T in fig. 1 represents an infrared radiation plate, which is located on the lower outer frame and the right outer frame of the infrared touch screen, and the total of 5 infrared radiation plates are T0, T64 and TX63 located on the lower outer frame of the infrared touch screen, and TY64 and TY44 located on the right outer frame of the infrared touch screen. The black dots on each infrared emission panel represent infrared emission elements.

The letter R in fig. 1 represents an infrared receiving panel, which is located at the upper outer frame and the left outer frame of the infrared touch screen, and 5 infrared receiving panels in total, RX64, R64, and RX63 located at the upper outer frame of the infrared touch screen, and RY64 and RY44 located at the left outer frame of the infrared touch screen, respectively. Black dots on each infrared receiving panel represent infrared receiving elements.

When the infrared touch screen performs infrared scanning, the infrared emitting elements sequentially emit infrared rays, for example, the infrared receiving board of the lower outer frame emits infrared rays first, wherein, starting from the leftmost infrared emitting element in the infrared receiving board T0, each infrared emitting element sequentially emits infrared rays. After the rightmost infrared emitting elements in the infrared receiving panel TX63 have finished emitting infrared rays, the respective infrared emitting elements emit infrared rays in sequence from the lowermost infrared emitting element in the infrared receiving panel TY64 until the uppermost infrared emitting element in the infrared receiving panel TY44 has finished emitting infrared rays.

The infrared emitting element and the infrared receiving element described above form an infrared detection network. Fig. 2 shows a schematic diagram of an infrared detection network in the related art. As shown in fig. 2, when the infrared emitting element emits infrared rays, the infrared receiving element disposed correspondingly receives the infrared rays emitted from the infrared emitting element. Therefore, under the condition that the medium performs touch operation on the infrared touch screen, the intensity of the infrared rays received by the infrared receiving element changes, and therefore the touch position of the medium on the infrared touch screen can be determined according to the intensity of the infrared rays received by the infrared receiving element.

However, when the two infrared touch panels are spliced together for display, if the infrared emitting element of one infrared touch panel emits infrared rays towards the receiving direction of the infrared receiving element of the other infrared touch panel, the infrared rays emitted by one infrared touch panel are received by the infrared receiving element of the other infrared touch panel. For example, in the case that two or more infrared touch screens are spliced left and right, infrared rays emitted by the infrared emitting element positioned on the right side of the outer frame in the right infrared touch screen may be received by the infrared receiving element positioned on the left side of the outer frame in the left infrared touch screen, so that the touch positioning accuracy of the left infrared touch screen is affected.

For example, as shown in fig. 3, the infrared emitting elements of the two infrared touch screens emit infrared rays to the left side at the same time, and then the infrared receiving element of the left infrared touch screen receives not only the infrared rays of the infrared touch screens but also the infrared rays emitted by the infrared emitting element of the right infrared touch screen.

Therefore, the infrared rays sent by one infrared touch screen interfere the other infrared touch screen to receive the infrared rays, so that the touch position determined by the infrared rays received by the other infrared touch screen is inaccurate.

In order to solve the technical problem, an embodiment of the application provides a control method and device for an infrared touch screen and the infrared touch screen. The following first describes a control method provided in an embodiment of the present application.

The infrared touch screen in the embodiment of the application comprises a first infrared touch screen and a second infrared touch screen. The first infrared touch screen and the second infrared touch screen form a whole when being spliced, and the first infrared touch screen and the second infrared touch screen are independent when not being spliced and can be used independently. The first infrared touch screen and the second infrared touch screen are both provided with connecting interfaces for realizing communication connection of the first infrared touch screen and the second infrared touch screen, and the first infrared touch screen and the second infrared touch screen both comprise a first infrared transmitting element for transmitting infrared rays to a first direction and a first infrared receiving element arranged opposite to the first infrared transmitting element.

It should be understood that the embodiment of the invention is used for solving the problem of mutual interference of infrared rays when the first infrared touch screen and the second infrared touch screen are spliced. According to the layout of the infrared transmitting elements and the infrared receiving elements in the existing infrared touch screen as shown in fig. 1 and the corresponding infrared detection network as shown in fig. 2, the angle of the infrared rays transmitted by the infrared transmitting elements is limited, so that when the first infrared touch screen and the second infrared touch screen are spliced left and right, the transmitting elements and the receiving elements at the upper and lower positions of the two infrared touch screens cannot interfere with each other. When the first infrared touch screen and the second infrared touch screen are spliced up and down, the transmitting elements and the receiving elements at the left and right positions of the two infrared touch screens cannot interfere with each other. Therefore, when the first infrared touch screen and the second infrared touch screen are spliced left and right, the first direction is the horizontal direction, and the first infrared transmitting element and the first infrared receiving element are respectively arranged on the left side and the right side of the infrared touch screen. When the first infrared touch screen and the second infrared touch screen are spliced up and down, the first direction is a vertical direction, and the first infrared transmitting element and the first infrared receiving element are respectively arranged on the upper side and the lower side of the infrared touch screen. The embodiment of the invention takes the first infrared touch screen and the second infrared touch screen as an example of left-right splicing to explain the overall concept of the embodiment of the invention.

Based on the infrared touch screen, a control method applied to the infrared touch screen is described below. Fig. 4 is a schematic flowchart illustrating an embodiment of a control method of an infrared touch screen provided in the present application. As shown in fig. 4, the control method includes:

s102, detecting a first signal on the connection interface, wherein the first signal is used for representing whether the first infrared touch screen and the second infrared touch screen are spliced or not.

The execution subject of the embodiment of the present invention is a controller. The controller may be provided in a computing device, for example, an intelligent control device such as a computer. The touch screen can also be arranged in the first infrared touch screen or the second infrared touch screen. In S102, the controller may detect a first signal on a connection line between any one of the first infrared touch screen and the second infrared touch screen and the connection interface, so as to detect the first signal on the connection interface. The first signal is used for representing whether the first infrared touch screen and the second infrared touch screen are spliced or not, for example, when the first signal is at a high level, the first infrared touch screen and the second infrared touch screen are spliced, and when the first signal is at a low level, the first infrared touch screen and the second infrared touch screen are not spliced.

Under the condition that the first infrared touch screen and the second infrared touch screen are not spliced, the first infrared touch screen and the second infrared touch screen are mutually independent and respectively and independently perform touch scanning without mutual interference.

Under the condition that the first infrared touch screen and the second infrared touch screen are spliced, the following controls are carried out on the first infrared touch screen and the second infrared touch screen:

s104, under the condition that the first infrared touch screen and the second infrared touch screen carry out scanning for the ith time, controlling a first infrared transmitting element of the first infrared touch screen to transmit infrared rays, and controlling a first infrared receiving element of the first infrared touch screen to receive the infrared rays, and under the condition that the first infrared transmitting element of the first infrared touch screen transmits the infrared rays, controlling a first infrared receiving element of the second infrared touch screen to suspend receiving the infrared rays.

The i-th scan is exemplarily illustrated by fig. 5.

As shown in FIG. 5, assume that the first IR emitting element 2042 of the first IR touch screen 202-A and the first IR emitting element 2042 of the second IR touch screen 202-B both transmit IR to the left. Under the condition of the ith scanning, the first infrared touch screen 202-a scans normally, that is, the first infrared emitting element 2042 of the first infrared touch screen 202-a emits infrared rays, and the first infrared receiving element 2044 of the first infrared touch screen 202-a receives infrared rays. However, the first infrared receiving element 2044 of the second infrared touch screen 202-B suspends receiving infrared rays, and the first infrared emitting element 2042 of the second infrared touch screen 202-B may or may not emit infrared rays.

Since the second infrared touch screen 202-B is located on the left side of the first infrared touch screen 202-a and the second infrared touch screen 202-B transmits infrared rays to the left, the infrared rays transmitted by the second infrared touch screen 202-B do not affect the infrared reception of the first infrared touch screen 202-a, that is, the first infrared touch screen 202-a does not receive the infrared rays transmitted by the second infrared touch screen 202-B. Moreover, the first infrared touch screen 202-a scans normally, so that the touch position coordinates on the first infrared touch screen 202-a can be accurately determined according to the scanning result of the first infrared touch screen 202-a.

However, since the first infrared receiving element 2044 of the second infrared touch screen 202-B suspends receiving infrared rays, the touch position coordinates on the second infrared touch screen 202-B cannot be determined. In this case, the touch position coordinates on the second infrared touch screen 202-B can be determined according to the next scanning, which will be described in detail below.

The control method further comprises the following steps of controlling the first infrared touch screen and the second infrared touch screen:

s106, under the condition that the first infrared touch screen and the second infrared touch screen carry out scanning for the (i + 1) th time, controlling a first infrared transmitting element of the second infrared touch screen to transmit infrared rays, and a first infrared receiving element of the second infrared touch screen to receive the infrared rays, and under the condition that the first infrared receiving element of the second infrared touch screen receives the infrared rays, controlling the first infrared transmitting element of the first infrared touch screen to pause transmitting the infrared rays, wherein i is an odd number or an even number;

and S108, performing touch display on the first infrared touch screen and the second infrared touch screen according to the ith scanning result and the (i + 1) th scanning result. Specifically, touch position coordinates on the first infrared touch screen and the second infrared touch screen can be determined according to the ith scanning result and the (i + 1) th scanning result, and touch display is performed on the first infrared touch screen and the second infrared touch screen according to the touch position coordinates on the first infrared touch screen and the second infrared touch screen.

The i +1 th scan is exemplarily illustrated by fig. 6.

As shown in FIG. 6, assume that the first IR emitting element 2042 of the first IR touch screen 202-A and the first IR emitting element 2042 of the second IR touch screen 202-B both transmit IR to the left. Under the condition of scanning for the (i + 1) th time, the second infrared touch screen 202-B scans normally, that is, the first infrared emitting element 2042 of the second infrared touch screen 202-B emits infrared rays, and the first infrared receiving element 2044 of the second infrared touch screen 202-B receives infrared rays. In addition, since the first infrared emitting element 2042 of the first infrared touch screen 202-a stops emitting infrared rays, it is avoided that the infrared rays emitted by the first infrared touch screen 202-a are received by the second infrared touch screen 202-B to influence the determination of the touch position coordinates on the second infrared touch screen 202-B. Therefore, the touch position coordinates on the second infrared touch screen 202-B can be accurately determined according to the scanning result of the (i + 1) th time second infrared touch screen 202-B.

The first infrared touch screen and the second infrared touch screen in the embodiment of the application can display the same content, for example, the same picture is displayed on the first infrared touch screen and the second infrared touch screen.

Of course, the first infrared touch screen and the second infrared touch screen may also display different contents. For example, the first infrared touch screen displays a part of content of a certain page, and the second infrared touch screen displays another part of content of the page, so that the content displayed by the first infrared touch screen and the content displayed by the second infrared touch screen are spliced together to form a complete page.

Under the condition that the contents displayed by the first infrared touch screen and the second infrared touch screen are different and the first infrared touch screen and the second infrared touch screen are spliced, the resolution ratio of the first infrared touch screen and the resolution ratio of the second infrared touch screen are integrated to obtain the target resolution ratio. When at least one infrared touch screen of the first infrared touch screen and the second infrared touch screen is touched by a user, determining a touch position according to the target resolution.

For example, the resolutions of the first infrared touch screen and the second infrared touch screen are 1920 × 1080, and when the detected first signal represents the first infrared touch screen and the second infrared touch screen, it indicates that the first infrared touch screen and the second infrared touch screen are spliced together, so that the first infrared touch screen and the second infrared touch screen may be combined into a combined infrared touch screen, where the resolution of the combined infrared touch screen on the longitudinal axis is unchanged, and the resolution on the lateral axis is 1080 which is 2 times that of the combined infrared touch screen, that is, 2160. Then, the target resolution of the combined infrared touch screen is 1920 × 2160. Under the condition that a user touches the combined infrared touch screen, the touch position of the user on the combined infrared touch screen can be determined according to the target resolution of the combined infrared touch screen.

In one or more embodiments of the present application, the number of the controller may be one, and the controller may control the first infrared touch screen and the second infrared touch screen.

In one or more embodiments of the present application, the number of the controllers may be two, and the two controllers are commonly used to control the two infrared touch screens.

As an example, as shown in FIG. 7, the controller includes a first controller 208 and a second controller 210, the first controller 208 is integrated on the first infrared touch screen 202-A, the second controller 208 is integrated on the second infrared touch screen 202-B, and the first controller 208 and the second controller 210 are communicatively connected via the connection interface 206.

One of the first infrared touch screen 202-a and the second infrared touch screen 202-B is a master infrared touch screen, and the other is a slave infrared touch screen.

As an example, one of the first infrared touch screen and the second infrared touch screen may be set as a master infrared touch screen in advance, and the other infrared touch screen may be set as a slave infrared touch screen. For example, under the condition that the first infrared touch screen and the second infrared touch screen are spliced left and right, the infrared touch screen on the right side is automatically set as the master infrared touch screen, and the infrared touch screen on the left side is automatically set as the slave infrared touch screen.

As another example, the master infrared touch screen and the slave infrared touch screen may be determined by the controller. Specifically, before the controlling the first infrared touch screen 202-a and the second infrared touch screen 202-B, the controlling method may further include:

under the condition that the first infrared touch screen 202-A and the second infrared touch screen 202-B are spliced, the first controller 208 or the second controller 210 is set as a master controller and a slave controller according to a preset master-slave machine setting instruction. The preset master-slave machine setting instruction is used for enabling one controller of the first controller 208 or the second controller 210 to be a master controller, the other controller to be a slave controller, the infrared touch screen controlled by the master controller is a master infrared touch screen, and the infrared touch screen controlled by the slave controller is a slave infrared touch screen.

The embodiment of the invention does not limit the trigger mode of the preset master and slave computer setting instruction. For example, when the first controller 208 detects that the first signal on the connection interface indicates that the first infrared touch screen 202-a and the second infrared touch screen 202-B are spliced, if the first controller 208 detects that the connection interface changes from a low level to a high level, a preset master-slave device setting instruction in the first controller is triggered, and the first controller 208 sets itself as the master controller according to the preset master-slave device setting instruction. After the master controller control is completed, the first controller 208 sends a slave setting instruction to the second controller, thereby causing the second controller 210 to set the second controller 210 itself as the slave.

The following describes determining the master infrared touch screen and the slave infrared touch screen in the embodiment of the present application by using an example of fig. 8.

As shown in fig. 8, the first infrared touch screen and the second infrared touch screen both include a connection interface. The connection interfaces each include a first interface and a second interface. When the first infrared touch screen and the second infrared touch screen are spliced, a first interface (interface a on the first infrared touch screen 202-a) integrated on the first infrared touch screen 202-a is connected with a second interface (i.e., interface B on the second infrared touch screen) integrated on the second infrared touch screen. The first controller 208 is connected to an interface a integrated on the first infrared touch screen 202-a, and the second controller 210 is connected to an interface B integrated on the second infrared touch screen.

First infrared touch-control screen and the infrared touch-control screen of second all still include: as shown in fig. 8, one end of the pull-down module 214 in the first infrared touch screen 202-a is connected to the interface a of the first infrared touch screen 202-a, and the other end of the pull-down module 214 is connected to the low-level signal terminal GND. One end of the pull-up module 212 in the second infrared touch screen 202-B is connected to the interface B of the second infrared touch screen 202-B, and the other end of the pull-up module 212 is connected to the high-level signal terminal VCC.

The pull-down module 214 may be a pull-down resistor, for example, the pull-down module 214 is a pull-down resistor of 1K. The pull-up module 212 may be a pull-up resistor, for example, the pull-up module 212 may be a 47K pull-up resistor. It should be understood that the pull-down module 214 and the pull-up module 212 may also be implemented in other manners, such as parallel or series connection between multiple resistors. The mode shown in fig. 8 is only an exemplary mode of the embodiment of the present application, and does not constitute a limitation on the embodiment of the present application.

Based on the structure of the infrared touch screen shown in fig. 8, in a single screen state, that is, when the first infrared touch screen 202-a and the second infrared touch screen 202-B are not spliced, the first controller 208 detects that the first signal on the interface a is a low level signal. Under the condition that the first infrared touch screen 202-a and the second infrared touch screen 202-B are spliced, the pull-down module 214 in the first infrared touch screen 202-a and the pull-up module 212 in the second infrared touch screen 202-B realize impedance voltage division, the interface a of the first infrared touch screen 202-a is in a high-impedance state, the voltage at the interface a is pulled high, the first controller 208 detects that the first signal on the interface a is a high-level signal, and at this time, the first controller 208 determines that the first infrared touch screen 202-a is spliced with other infrared touch screens.

After the first infrared touch screen 202-a defaults to be the primary infrared touch screen, the first controller 208 of the first infrared touch screen 202-a performs configuration corresponding to the primary infrared touch screen. Meanwhile, the first controller 208 pulls down the interface B of the second infrared touch screen 202-B for 3 seconds, and at this time, when the second controller 210 of the second infrared touch screen 202-B detects that the interface B is pulled down for 3 seconds, the second infrared touch screen 202-B is set as a slave infrared touch screen, and the second controller 210 performs configuration corresponding to the slave infrared touch screen.

After the master controller, the slave controller, the master infrared touch screen and the slave infrared touch screen are arranged, the control method may further include:

the method comprises the steps that a master controller sends a synchronization instruction to a slave controller, and the synchronization instruction is used for enabling the time for starting scanning of a master infrared touch screen and the time for starting scanning of a slave infrared touch screen to be consistent;

and the slave controller controls the slave infrared touch screen and the master infrared touch screen to start scanning at the same time according to the synchronous instruction.

Through the embodiment of the application, the time for starting scanning of the master infrared touch screen and the slave infrared touch screen at each time is consistent, so that the master infrared touch screen and the slave infrared touch screen can work normally.

Next, continuing to use the infrared touch screen shown in fig. 8 as an example, the embodiments of the present application are further described with reference to fig. 9 and fig. 10, respectively.

As shown in FIG. 9, during the time period T1, the first infrared touch screen 202-A and the second infrared touch screen 202-B are in a power-up stage, and the first infrared touch screen 202-A and the second infrared touch screen 202-B are not spliced. During the time period T1, the interface A of the first infrared touch screen 202-A is in a low state and the interface B of the second infrared touch screen 202-B is in a high state.

In the time period T2, if the interface a of the first infrared touch screen 202-a changes to the high level state, it may be determined that the first infrared touch screen 202-a is the primary infrared touch screen, and thus, the detection of the primary infrared touch screen is achieved.

During the time period T3, the first controller 208 of the first infrared touch screen 202-A pulls down the interface A of the first infrared touch screen 202-A for 3 seconds. After the second controller 210 of the second infrared touch screen 202-B detects that the signal is pulled low, it may be determined that the second infrared touch screen 202-B is the slave infrared touch screen, thereby implementing detection of the slave infrared touch screen.

After determining the master infrared touch screen and the slave infrared touch screen, the master infrared touch screen and the slave infrared touch screen may start to perform infrared scanning at the same time at time period T4.

Fig. 10 is a schematic flow chart illustrating another embodiment of the control method provided in the present application.

As shown in fig. 10, the control method may include:

first, the first infrared touch screen 202-a is powered on, after the first infrared touch screen 202-a is powered on, the first controller 208 of the first infrared touch screen 202-a detects a signal of an interface a of the first infrared touch screen 202-a, and when the signal of the interface a is at a low level, it indicates that the first infrared touch screen 202-a is not spliced with other infrared touch screens, and then normal scanning is performed.

And when the signal of the interface a of the first infrared touch screen 202-a is at a high level, the first infrared touch screen 202-a is spliced with other infrared touch screens. In this case, in one aspect, the first controller 208 configures the primary infrared touch screen for the first infrared touch screen 202-A. On the other hand, the first controller 208 of the first infrared touch screen 202-A pulls down the interface A for 3 seconds, thereby notifying the second controller 210 of the second infrared touch screen 202-B that the first infrared touch screen 202-A is the primary infrared touch screen.

After the second controller 210 of the second infrared touch screen 202-B detects that the interface B is pulled down for 3 seconds, the second controller 210 configures the second infrared touch screen 202-B with slave infrared touch screens.

The first controller 208 of the first infrared touch screen 202-a can also send a scanning synchronization signal to the interface B of the second infrared touch screen 202-B through the interface a, so that the first infrared touch screen 202-a and the second infrared touch screen 202-B start scanning at the same time, and scanning is performed alternately by using the two scanning methods in fig. 4.

In one or more embodiments of the present application, after the first controller 208 sets the first infrared touch screen 202-a as a primary infrared touch screen according to the first signal and sends a second preset signal to the second infrared touch screen 202-B through the connection interface, the control method may further include:

the second controller 210 sends a master-slave switching signal to the first controller 208 through the connection interface, and the second controller 210 sets the second infrared touch screen 202-B as a master infrared touch screen;

under the condition that the first controller 208 receives the master-slave switching signal through the connection interface, the first infrared touch screen 202-a is set as a slave infrared touch screen.

The following description continues by taking the infrared touch screen shown in fig. 8 as an example.

With continued reference to FIG. 8, after the first infrared touch screen 202-A is configured as the master infrared touch screen and the second infrared touch screen 202-B is configured as the slave infrared touch screen, the first infrared touch screen 202-A may notify the second infrared touch screen 202-B via a proprietary protocol to make the second infrared touch screen 202-B the master infrared touch screen. The second infrared touch screen 202-B pulls down the signal for 3 seconds, and the second infrared touch screen 202-B is set as the primary infrared touch screen. The first infrared touch screen 202-A waits for the second infrared touch screen 202-B to pull down for a 3 second signal. After the first controller 208 of the first infrared touch screen 202-A detects the pull-down for 3 seconds, the first infrared touch screen 202-A is set as the slave infrared touch screen. Therefore, master-slave switching between the first infrared touch screen 202-A and the second infrared touch screen 202-B is achieved.

In one or more embodiments of the present application, the first infrared touch screen is a master infrared touch screen, and the second infrared touch screen is a slave infrared touch screen; under the condition of splicing the first infrared touch screen and the second infrared touch screen, controlling the first infrared touch screen and the second infrared touch screen, and specifically comprising:

the main controller controls the main infrared touch screen to scan according to a preset first scanning instruction; and the master controller sends a preset second scanning instruction to the slave controller so that the slave controller performs touch scanning on the slave infrared touch screen according to the preset second scanning instruction.

The method comprises the steps that a first scanning instruction is preset and used for controlling a first infrared emitting element of a main infrared touch screen to emit infrared rays under the condition of ith scanning, and a first infrared receiving element of the main infrared touch screen receives the infrared rays; under the condition of the (i + 1) th scanning, controlling a first infrared emission element of the main infrared touch screen to pause emitting infrared rays;

presetting a second scanning instruction to control a first infrared transmitting element of the infrared touch screen to transmit infrared rays and a first infrared receiving element of the infrared touch screen to receive the infrared rays under the condition of i +1 th scanning; and under the condition of the ith scanning, controlling a first infrared receiving element of the infrared touch screen to pause receiving the infrared rays.

In the embodiment of the application, the master controller controls the master infrared touch screen to scan, and the slave controller controls the slave infrared touch screen to scan, so that the master infrared touch screen and the slave infrared touch screen are respectively controlled by the respective corresponding controllers.

In one or more embodiments of the present application, S108 may include:

the main controller determines a first touch position coordinate on the main infrared touch screen according to the ith scanning result;

the slave controller determines a second touch position coordinate on the slave infrared touch screen according to the (i + 1) th scanning result;

and the master controller and the slave controller respectively perform touch display according to the first touch position coordinate and the second touch position coordinate.

The following describes an exemplary touch display performed by the master controller and the slave controller according to the first touch position coordinate and the second touch position coordinate, respectively.

As an example, the master controller controls the master infrared touch screen to perform touch display according to the first touch position coordinate, and the slave controller controls the slave infrared touch screen to perform touch display according to the second touch position coordinate.

As another example, after the slave controller determines the second touch position coordinate according to the i +1 th scanning result, the slave controller may report the second touch position coordinate to the master controller.

And after the main controller receives the second touch position coordinate reported by the slave controller, the main controller corrects the second touch position coordinate according to the infrared ray received from the infrared touch screen during the ith scanning to obtain the corrected second touch position coordinate.

After the correction, the master controller may send the corrected second touch position coordinates to the slave controller, so that the slave controller performs touch display according to the corrected second touch position coordinates. Or after the correction is completed, the master controller may determine a target display page to be displayed on the slave infrared touch screen according to the corrected second touch position coordinates, and issue the target display page to the slave controller, so that the slave controller displays the target display page.

The following is an exemplary description of embodiments of the present application.

As an example, assuming that the master infrared touch screen and the slave infrared touch screen display the same content, in the case that the user touches the slave infrared touch screen, the slave controller determines a second touch position coordinate of the user on the slave infrared touch screen, and then transmits the second touch position coordinate to the master controller. And the main controller corrects the second touch position coordinates and determines a target display page according to the corrected second touch position coordinates. And then, the main controller respectively issues a control instruction for controlling the display of the target display page to the main infrared touch screen and the slave infrared touch screen so that the main infrared touch screen and the slave infrared touch screen respectively display the target display page. Therefore, the contents displayed by the main infrared touch screen and the slave infrared touch screen can be synchronously updated, and the same contents are continuously displayed.

As another example, assume that the master infrared touch screen and the slave infrared touch screen display different content, such as the master infrared touch screen displaying a portion of a page and the slave infrared touch screen displaying another portion of the page. Under the condition that the user touches the slave infrared touch screen, the slave controller determines second touch position coordinates of the user on the slave infrared touch screen, and then sends the second touch position coordinates to the master controller. And the main controller determines a target display page according to the second touch position coordinates, sends a control instruction for displaying a first part of the target display page to the master infrared touch screen, and sends a control instruction for displaying a second part of the target display page to the slave infrared touch screen. Therefore, the contents displayed by the main infrared touch screen and the slave infrared touch screen can be synchronously updated, and the contents displayed by the main infrared touch screen and the slave infrared touch screen are spliced into a complete picture.

In one or more embodiments of the present application, when the master controller determines the first touch position coordinate on the master infrared touch screen, the master controller issues a control instruction corresponding to the first touch position coordinate to the master infrared touch screen and the slave infrared touch screen, respectively. Therefore, the contents displayed by the main infrared touch screen and the slave infrared touch screen can be synchronously updated, and the same contents are continuously displayed by the main infrared touch screen and the slave infrared touch screen or the displayed contents can be spliced into a complete picture.

In one or more embodiments of the present application, each infrared touch screen further includes: the infrared receiving device comprises a second infrared transmitting element and a second infrared receiving element, wherein the second infrared transmitting element is used for transmitting infrared rays to a second direction, the second infrared receiving element is arranged opposite to the second infrared transmitting element, and the second direction is perpendicular to the first direction.

As an example, as shown in fig. 11, each of the first infrared touch screen 202-a and the second infrared touch screen 202-B further includes: a second infrared transmitting element 2064 for emitting infrared rays upward and a second infrared receiving element 2062 disposed opposite to the second infrared transmitting element 2064.

Under the condition that the first infrared touch screen and the second infrared touch screen are spliced, the control method further comprises the following steps of:

under the condition of scanning for the ith time or scanning for the (i + 1) th time, controlling the second infrared emitting element 2064 of the first infrared touch screen 202-A and the second infrared emitting element 2064 of the second infrared touch screen 202-B to emit infrared rays, and controlling the second infrared receiving element 2062 of the first infrared touch screen 202-A and the second infrared emitting element 2064 of the second infrared touch screen 202-B to receive infrared rays;

s108 may include:

determining a first touch position coordinate on the first infrared touch screen 202-A according to the first infrared ray and the second infrared ray received during the ith scanning; the first infrared ray is an infrared ray received by the first infrared receiving element 2062 of the first infrared touch screen 202-a during the ith scanning, and the second infrared ray is an infrared ray received by the second infrared receiving element 2062 of the first infrared touch screen 202-a during the ith scanning;

correcting the first touch position coordinate according to the third infrared ray received in the i-1 th scanning to obtain a corrected first touch position coordinate; the third infrared ray is an infrared ray received by the second infrared receiving element 2062 of the first infrared touch screen 202-a during the i-1 th scanning;

determining a second touch position coordinate on the second infrared touch screen 202-B according to the fourth infrared ray and the fifth infrared ray received during the (i + 1) th scanning; the fourth infrared ray is an infrared ray received by the first infrared receiving element 2062 of the second infrared touch screen 202-B during the (i + 1) th scanning, and the fifth infrared ray is an infrared ray received by the second infrared receiving element 2062 of the second infrared touch screen 202-B during the (i + 1) th scanning;

correcting the second touch position coordinate according to the sixth infrared ray received in the ith scanning to obtain a corrected second touch position coordinate; the sixth infrared ray is an infrared ray received by the second infrared receiving element 2062 of the second infrared touch screen 202-B during the ith scanning;

and performing touch display on the first infrared touch screen 202-A and the second infrared touch screen 202-B according to the corrected first touch position coordinates and the corrected second touch position coordinates, wherein i is larger than 1.

In this embodiment, each time scanning is performed, the second infrared emitting element 2064 of each infrared touch screen emits infrared rays, and the second infrared receiving element 2062 of each infrared touch screen receives infrared rays.

Since the first infrared receiving element of the second infrared touch screen 202-B stops receiving infrared rays during the ith scanning, the touch position coordinate on the second infrared touch screen 202-B cannot be determined according to the scanning result of the ith scanning. However, the infrared signal received by the second infrared receiving element 2062 of the second infrared touch screen 202-B at the ith scanning time is not interfered, so that the infrared signal received by the second infrared receiving element 2062 of the second infrared touch screen 202-B at the ith scanning time can be used for correcting the scanning result of the second infrared touch screen 202-B at the (i + 1) th scanning time.

Similarly, during the (i-1) th scan, the first infrared emitting element of the first infrared touch screen 202-a stops emitting infrared rays, so that the touch position coordinate on the first infrared touch screen 202-a cannot be determined according to the (i-1) th scan result. However, the infrared signal received by the second infrared receiving element 2062 of the first infrared touch screen 202-a during the i-1 th scan is not interfered, so the infrared signal received by the second infrared receiving element 2062 of the first infrared touch screen 202-a during the i-1 th scan can be used to correct the scanning result of the first infrared touch screen 202-a during the i-1 th scan.

Therefore, the data generated during scanning can be fully utilized, and the touch position coordinate on the second infrared touch screen 202-B can be determined more accurately.

In one or more embodiments of the present application, the control method may further include:

after the first infrared receiving element of the second infrared touch screen 202-B is controlled to pause receiving the infrared rays, and under the condition that the first infrared transmitting element of the first infrared touch screen 202-A finishes transmitting the infrared rays, the first infrared transmitting element of the second infrared touch screen 202-B is controlled to transmit the infrared rays, and the first infrared receiving element of the second infrared touch screen 202-B is controlled to receive the infrared rays;

after the first infrared emission element of the first infrared touch screen 202-A is controlled to pause the emission of infrared rays, and under the condition that the first infrared emission element of the second infrared touch screen 202-B finishes the emission of infrared rays, the first infrared emission element of the first infrared touch screen 202-A is controlled to emit infrared rays;

the following describes an embodiment of the present application by taking an infrared touch screen shown in fig. 12 as an example.

As shown in fig. 12, the first controller 208 corresponding to the first infrared touch screen 202-a sends a signal for starting scanning to the second controller 210 corresponding to the second infrared touch screen 202-B through the connection interface to notify the second infrared touch screen 202-B to perform infrared scanning, and then the first infrared touch screen 202-a and the second infrared touch screen 202-B simultaneously start scanning from the leftmost second infrared emission element 2064.

If the scanning is the ith scanning, the first infrared touch screen 202-a performs normal scanning, and when the last second infrared emitting element 2064 (i.e., the second infrared emitting element C) of the second infrared touch screen 202-B finishes scanning, the second infrared touch screen 202-B stops emitting infrared rays, and the second infrared touch screen 202-B stops receiving infrared rays. And waits for the first infrared touch screen 202-a to scan completely, when the first infrared touch screen 202-a scans completely (i.e. the infrared emitting element D on the first infrared touch screen 202-a scans completely), the first infrared emitting element 2042 of the second infrared touch screen 202-B emits infrared rays, and the first infrared receiving element 2044 of the second infrared touch screen 202-B receives infrared rays. Thus, the first infrared touch screen 202-A and the second infrared touch screen 202-B are both completely scanned at the ith scan.

Similarly, if the scanning is performed for the (i + 1) th time, the second infrared touch screen 202-B performs normal scanning, and when the last second infrared emitting element 2064 (i.e., the infrared emitting element E) of the first infrared touch screen 202-a finishes scanning, the first infrared touch screen 202-a stops emitting infrared rays and stops receiving infrared rays. And waits for the second infrared touch screen 202-B to scan completely, and when the second infrared touch screen 202-B scans completely (i.e., the infrared emitting element F of the second infrared touch screen 202-B scans completely), the first infrared emitting element 2042 of the first infrared touch screen 202-a emits infrared rays, and the first infrared receiving element 2044 of the first infrared touch screen 202-a receives infrared rays. Therefore, the first infrared touch screen 202-A and the second infrared touch screen 202-B are completely scanned at the (i + 1) th scanning time.

Corresponding to the control method provided by the embodiment of the application, the application also provides a control device of the infrared touch screen. The infrared touch screen comprises a first infrared touch screen and a second infrared touch screen, the first infrared touch screen and the second infrared touch screen both comprise connecting interfaces, the connecting interfaces are used for realizing communication connection of the first infrared touch screen and the second infrared touch screen, and the first infrared touch screen and the second infrared touch screen both comprise a first infrared transmitting element for transmitting infrared rays to a first direction and a first infrared receiving element arranged opposite to the first infrared transmitting element.

Based on the above infrared touch screen, the present application provides a control device, and fig. 13 shows a schematic structural diagram of an embodiment of the control device of the infrared touch screen provided by the present application.

As shown in fig. 13, the control device 300 includes:

the detection module 302 is configured to detect a first signal on the connection interface, where the first signal is used to represent whether the first infrared touch screen and the second infrared touch screen are spliced;

the first control module 304 is configured to, under the condition that the first infrared touch screen and the second infrared touch screen are spliced, control the first infrared touch screen and the second infrared touch screen as follows:

and the display module 306 is configured to perform touch display on the first infrared touch screen and the second infrared touch screen according to the ith scanning result and the (i + 1) th scanning result.

In this embodiment of the application, under the condition that the first infrared touch screen and the second infrared touch screen are spliced, the first infrared touch screen and the second infrared touch screen scan in the following manner: during the ith scanning, the first infrared touch screen scans normally, and under the condition that the first infrared touch screen emits infrared rays in the first direction, the first infrared receiving element of the second infrared touch screen, which is used for receiving the infrared rays in the first direction, stops receiving the infrared rays. In this case, the second infrared touch screen does not affect the infrared reception of the first infrared touch screen, and therefore, the touch position coordinate on the first infrared touch screen can be determined according to the scanning result of the first infrared touch screen. During the (i + 1) th scanning, the second infrared touch screen scans normally, and because the first infrared emission element of the first infrared touch screen suspends the emission of infrared rays, the influence of the infrared rays emitted by the first infrared touch screen received by the second infrared touch screen on the determination of the touch position coordinates on the second infrared touch screen is avoided. Therefore, the touch position coordinate on the second infrared touch screen can be accurately determined according to the scanning result of the (i + 1) th second infrared touch screen. By means of the control mode, the problem that infrared rays received by infrared touch screens cannot interfere with each other due to the fact that the infrared rays sent by one infrared touch screen are received by the infrared receiving element of the other infrared touch screen when the two screens are spliced is avoided, and therefore the accuracy of positioning touch positions of the infrared touch equipment is improved.

Under the condition that the first infrared touch screen and the second infrared touch screen are spliced, the control device 300 may further include:

the second control module is used for controlling the second infrared emitting element of each infrared touch screen to emit infrared rays and the second infrared receiving element of each infrared touch screen to receive the infrared rays under the condition of scanning for the ith time or scanning for the (i + 1) th time;

the display module 306 may include:

the first determining unit is used for determining a first touch position coordinate on the first infrared touch screen according to the first infrared ray and the second infrared ray received during the ith scanning; the first infrared ray is the infrared ray received by the first infrared receiving element of the first infrared touch screen during the ith scanning, and the second infrared ray is the infrared ray received by the second infrared receiving element of the first infrared touch screen during the ith scanning;

the first correction unit is used for correcting the first touch position coordinate according to the third infrared ray received in the i-1 th scanning process to obtain a corrected second touch position coordinate; the third infrared ray is the infrared ray received by the second infrared receiving element of the first infrared touch screen during the i-1 th scanning;

the second determining unit is used for determining a second touch position coordinate on the second infrared touch screen according to the fourth infrared ray and the fifth infrared ray received in the (i + 1) th scanning; the fourth infrared ray is the infrared ray received by the first infrared receiving element of the second infrared touch screen during the (i + 1) th scanning, and the fifth infrared ray is the infrared ray received by the second infrared receiving element of the second infrared touch screen during the (i + 1) th scanning;

the second correction unit is used for correcting the first touch position coordinate according to the sixth infrared ray received during the ith scanning to obtain a corrected first touch position coordinate; the sixth infrared ray is the infrared ray received by the second infrared receiving element of the second infrared touch screen during the ith scanning;

and the display unit is used for performing touch display on the first infrared touch screen and the second infrared touch screen according to the corrected first touch position coordinate and the corrected second touch position coordinate.

In the embodiment of the application, the touch position coordinate obtained this time is corrected through the infrared ray received by the second infrared receiving element last time, so that not only can the data generated in scanning be fully utilized, but also the touch position coordinate on the second infrared touch screen can be more accurately determined.

In one or more embodiments of the present application, the control device 300 may further include:

the third control module is used for controlling the first infrared sending element of the second infrared touch screen to send infrared rays and controlling the first infrared receiving element of the second infrared touch screen to receive infrared rays after the first infrared receiving element of the second infrared touch screen is controlled to pause receiving infrared rays and under the condition that the first infrared sending element of the first infrared touch screen finishes sending infrared rays;

and the fourth control module is used for controlling the first infrared emission element of the first infrared touch screen to emit infrared rays after the first infrared emission element of the first infrared touch screen is controlled to pause the emission of the infrared rays and under the condition that the first infrared emission element of the second infrared touch screen finishes the emission of the infrared rays.

Therefore, the first infrared touch screen and the second infrared touch screen can be scanned completely at one time during each scanning.

Based on the control method, the application provides the infrared touch screen for implementing the control method. The infrared touch screen includes:

the touch screen comprises a first infrared touch screen and a second infrared touch screen; the first infrared touch screen and the second infrared touch screen both comprise connecting interfaces, the connecting interfaces are used for realizing communication connection of the first infrared touch screen and the second infrared touch screen, and the first infrared touch screen and the second infrared touch screen both comprise a first infrared transmitting element for transmitting infrared rays to a first direction and a first infrared receiving element arranged corresponding to the first infrared transmitting element;

a controller for performing any one of the above control methods.

In one or more embodiments of the present application, the connection interface of the first infrared touch screen and the connection interface of the second infrared touch screen respectively include a first interface and a second interface, and the first interface integrated on the first infrared touch screen is connected to the second interface integrated on the second infrared touch screen, so as to splice the first infrared touch screen and the second infrared touch screen.

The infrared touch screen further comprises: the pull-down module and the pull-up module, one end of the pull-down module is connected to the first interface, the other end of the pull-down module is connected to the low level signal end, one end of the pull-up module is connected to the second interface, and the other end of the pull-up module is connected to the high level signal end.

Since the embodiments of the present application have been described in the embodiments of the control method, detailed descriptions thereof are not repeated here.

In one or more embodiments of the present application, the controller includes a first controller and a second controller, the first controller is integrated in the first infrared touch screen, the second controller is integrated in the second infrared touch screen, and the first controller and the second controller are in communication connection through a connection interface;

wherein, under the condition that the first infrared touch screen and the second infrared touch screen are spliced, the first controller or the second controller is used for: setting a master controller and a slave controller according to a preset master-slave set instruction, wherein the preset master-slave set instruction is used for enabling one controller of the first controller or the second controller to be the master controller, the other controller to be the slave controller, an infrared touch screen controlled by the master controller is a master infrared touch screen, and an infrared touch screen controlled by the slave controller is a slave infrared touch screen;

the main controller is used for: sending a synchronization instruction to the slave controller, wherein the synchronization instruction is used for enabling the master infrared touch screen and the slave infrared touch screen to start scanning synchronization;

the slave controller is for: and controlling the slave infrared touch screen and the master infrared touch screen to start synchronous scanning according to the synchronous instruction.

In one or more embodiments of the present application, the master controller is specifically configured to: controlling a main infrared touch screen to scan according to a preset first scanning instruction; sending a preset second scanning instruction to the slave controller;

the slave controller is specifically configured to: performing touch scanning on the slave infrared touch screen according to a preset second scanning instruction;

presetting a second scanning instruction to control a first infrared transmitting element of the infrared touch screen to transmit infrared rays and a first infrared receiving element of the infrared touch screen to receive the infrared rays under the condition of i +1 th scanning; under the condition of the ith scanning, controlling a first infrared receiving element of the infrared touch screen to pause receiving infrared rays; i is odd or even.

In one or more embodiments of the present application, the first controller is configured to set the first infrared touch screen as a primary infrared touch screen when the first infrared touch screen and the second infrared touch screen are spliced, and send a second preset signal to the second controller through the connection interface, where the second preset signal is used to indicate that the first infrared touch screen is the primary infrared touch screen;

the second controller is used for setting the second infrared touch screen into the slave infrared touch screen according to the received second preset signal.

The first controller and the second controller may be a Micro Controller Unit (MCU), or a Central Processing Unit (CPU), or an Application Specific Integrated Circuit (ASIC), or may be configured as one or more Integrated circuits implementing embodiments of the present Application.

In one or more embodiments of the present application, the second controller is further configured to: sending a master-slave switching signal to the first controller through the connecting interface, and setting the second infrared touch screen as a master infrared touch screen;

the first controller is further configured to: and under the condition of a master-slave switching signal received through the connection interface, setting the first infrared touch screen as a slave infrared touch screen.

In addition, in combination with the control method in the foregoing embodiments, the embodiments of the present application may be implemented by providing a computer-readable storage medium. The computer readable storage medium having stored thereon computer program instructions; the computer program instructions, when executed by a processor, implement any of the control methods in the above embodiments.

It is to be understood that the present application is not limited to the particular arrangements and instrumentality described above and shown in the attached drawings. A detailed description of known methods is omitted herein for the sake of brevity. In the above embodiments, several specific steps are described and shown as examples. However, the method processes of the present application are not limited to the specific steps described and illustrated, and those skilled in the art can make various changes, modifications, and additions or change the order between the steps after comprehending the spirit of the present application.

The functional blocks shown in the above structural block diagrams may be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, it may be, for example, an electronic circuit, an Application Specific Integrated Circuit (ASIC), suitable firmware, plug-in, function card, or the like. When implemented in software, the elements of the present application are the programs or code segments used to perform the required tasks. The program or code segments may be stored in a machine-readable medium or transmitted by a data signal carried in a carrier wave over a transmission medium or a communication link. A "machine-readable medium" may include any medium that can store or transfer information. Examples of a machine-readable medium include electronic circuits, semiconductor memory devices, ROM, flash memory, Erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, Radio Frequency (RF) links, and so forth. The code segments may be downloaded via computer networks such as the internet, intranet, etc.

It should also be noted that the exemplary embodiments mentioned in this application describe some methods or systems based on a series of steps or devices. However, the present application is not limited to the order of the above-described steps, that is, the steps may be performed in the order mentioned in the embodiments, may be performed in an order different from the order in the embodiments, or may be performed simultaneously.

Aspects of the present disclosure are described above with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the disclosure. It will be understood that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, enable the implementation of the functions/acts specified in the flowchart and/or block diagram block or blocks. Such a processor may be, but is not limited to, a general purpose processor, a special purpose processor, an application specific processor, or a field programmable logic circuit. It will also be understood that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware for performing the specified functions or acts, or combinations of special purpose hardware and computer instructions.

As described above, only the specific embodiments of the present application are provided, and it can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the system, the module and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again. It should be understood that the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present application, and these modifications or substitutions should be covered within the scope of the present application.

Claims

1. The control method of the infrared touch screen is characterized in that the infrared touch screen comprises a first infrared touch screen and a second infrared touch screen; the first infrared touch screen and the second infrared touch screen both comprise connecting interfaces, the connecting interfaces are used for realizing communication connection of the first infrared touch screen and the second infrared touch screen, and the first infrared touch screen and the second infrared touch screen both comprise a first infrared transmitting element for transmitting infrared rays to a first direction and a first infrared receiving element arranged opposite to the first infrared transmitting element; the method comprises the following steps:

detecting a first signal on the connection interface, wherein the first signal is used for representing whether the first infrared touch screen and the second infrared touch screen are spliced or not;

under the condition that the first infrared touch screen and the second infrared touch screen perform ith scanning, controlling a first infrared transmitting element of the first infrared touch screen to transmit infrared rays, and a first infrared receiving element of the first infrared touch screen to receive the infrared rays, and under the condition that the first infrared transmitting element of the first infrared touch screen transmits the infrared rays, controlling a first infrared receiving element of the second infrared touch screen to pause receiving the infrared rays;

under the condition that the first infrared touch screen and the second infrared touch screen perform scanning for the (i + 1) th time, controlling a first infrared transmitting element of the second infrared touch screen to transmit infrared rays, receiving the infrared rays by a first infrared receiving element of the second infrared touch screen, and under the condition that the first infrared receiving element of the second infrared touch screen receives the infrared rays, controlling the first infrared transmitting element of the first infrared touch screen to pause transmitting the infrared rays, wherein i is an odd number or an even number;

and performing touch display on the first infrared touch screen and the second infrared touch screen according to the ith scanning result and the (i + 1) th scanning result.

2. The method according to claim 1, wherein the controller comprises a first controller and a second controller, the first controller is integrated in a first infrared touch screen, the second controller is integrated in a second infrared touch screen, and the first controller and the second controller are in communication connection through the connection interface;

before the first infrared touch screen and the second infrared touch screen are controlled as follows under the condition that the first infrared touch screen and the second infrared touch screen are spliced, the method further comprises the following steps:

under the condition that the first infrared touch screen and the second infrared touch screen are spliced, the first controller or the second controller is set as a master controller and a slave controller according to a preset master-slave machine setting instruction, the preset master-slave machine setting instruction is used for enabling one controller of the first controller or the second controller to be the master controller, the other controller to be the slave controller, the infrared touch screen controlled by the master controller is a master infrared touch screen, and the infrared touch screen controlled by the slave controller is a slave infrared touch screen;

the master controller sends a synchronization instruction to the slave controller, and the synchronization instruction is used for enabling the scanning start time of the master infrared touch screen to be consistent with that of the slave infrared touch screen;

3. The method of claim 2, wherein the first infrared touch screen is a master infrared touch screen and the second infrared touch screen is a slave infrared touch screen; under the condition that the first infrared touch screen and the second infrared touch screen are spliced, the following controls are carried out on the first infrared touch screen and the second infrared touch screen, and the control method comprises the following steps:

the main controller controls the main infrared touch screen to scan according to a preset first scanning instruction; the master controller sends a preset second scanning instruction to the slave controller, so that the slave controller carries out touch scanning on the slave infrared touch screen according to the preset second scanning instruction;

the preset first scanning instruction is used for controlling a first infrared emitting element of the main infrared touch screen to emit infrared rays under the condition of ith scanning, and a first infrared receiving element of the main infrared touch screen receives the infrared rays; under the condition of the (i + 1) th scanning, controlling a first infrared emission element of the main infrared touch screen to pause emitting infrared rays;

the preset second scanning instruction is used for controlling the first infrared emitting element of the slave infrared touch screen to emit infrared rays under the condition of i +1 th scanning, and the first infrared receiving element of the slave infrared touch screen to receive the infrared rays; and under the condition of the ith scanning, controlling a first infrared receiving element of the slave infrared touch screen to suspend receiving infrared rays.

4. The method according to claim 3, wherein the performing touch display on the first infrared touch screen and the second infrared touch screen according to the ith scanning result and the (i + 1) th scanning result comprises:

the main controller determines a first touch position coordinate on the main infrared touch screen according to an ith scanning result;

5. The method of any one of claims 1 to 4, wherein the first infrared touch screen and the second infrared touch screen each comprise: the infrared receiving device comprises a second infrared emitting element and a second infrared receiving element, wherein the second infrared emitting element is used for emitting infrared rays to a second direction, and the second infrared receiving element is arranged opposite to the second infrared emitting element;

under the condition that the first infrared touch screen and the second infrared touch screen are spliced, the method further comprises the following steps:

under the condition of scanning for the ith time or scanning for the (i + 1) th time, controlling a second infrared transmitting element of the first infrared touch screen and a second infrared transmitting element of the second infrared touch screen to transmit infrared rays, and controlling a second infrared receiving element of the first infrared touch screen and a second infrared receiving element of the second infrared touch screen to receive the infrared rays;

the touch display is performed on the first infrared touch screen and the second infrared touch screen according to the ith scanning result and the (i + 1) th scanning result, and the touch display method includes:

determining a first touch position coordinate on the first infrared touch screen according to the first infrared ray and the second infrared ray received in the ith scanning; the first infrared ray is an infrared ray received by the first infrared receiving element of the first infrared touch screen during the ith scanning, and the second infrared ray is an infrared ray received by the second infrared receiving element of the first infrared touch screen during the ith scanning;

correcting the first touch position coordinate according to a third infrared ray received in the i-1 th scanning to obtain a corrected first touch position coordinate; the third infrared ray is the infrared ray received by the second infrared receiving element of the first infrared touch screen during the i-1 th scanning;

determining a second touch position coordinate on the second infrared touch screen according to a fourth infrared ray and a fifth infrared ray received in the (i + 1) th scanning; the fourth infrared ray is an infrared ray received by the first infrared receiving element of the second infrared touch screen during the (i + 1) th scanning, and the fifth infrared ray is an infrared ray received by the second infrared receiving element of the second infrared touch screen during the (i + 1) th scanning;

correcting the first touch position coordinate according to a sixth infrared ray received in the ith scanning to obtain a corrected second touch position coordinate; the sixth infrared ray is the infrared ray received by a second infrared receiving element of the second infrared touch screen during the ith scanning;

and performing touch display on the first infrared touch screen and the second infrared touch screen according to the corrected first touch position coordinate and the corrected second touch position coordinate.

6. A control device of an infrared touch screen is characterized in that the infrared touch screen comprises a first infrared touch screen and a second infrared touch screen; the first infrared touch screen and the second infrared touch screen both comprise connecting interfaces, the connecting interfaces are used for realizing communication connection of the first infrared touch screen and the second infrared touch screen, and the first infrared touch screen and the second infrared touch screen both comprise a first infrared transmitting element for transmitting infrared rays to a first direction and a first infrared receiving element arranged opposite to the first infrared transmitting element; the device comprises:

the detection module is used for detecting a first signal on the connection interface, wherein the first signal is used for representing whether the first infrared touch screen and the second infrared touch screen are spliced or not;

7. An infrared touch screen is characterized by comprising a first infrared touch screen and a second infrared touch screen; the first infrared touch screen and the second infrared touch screen both include:

a controller for performing the control method of any one of claims 1 to 5.

8. The infrared touch screen of claim 7,

the connection interface comprises a first interface and a second interface;

the first infrared touch screen and the second infrared touch screen both include: a pull-down module and a pull-up module;

one end of the pull-down module is connected to the first interface, and the other end of the pull-down module is connected to a low level signal end;

one end of the pull-up module is connected to the second interface, and the other end of the pull-up module is connected to a high-level signal end;

and a first interface of the first infrared touch screen is connected with a second interface of the second infrared touch screen so as to realize splicing of the first infrared touch screen and the second infrared touch screen.

9. The infrared touch screen of claim 7, wherein the controller comprises a first controller and a second controller, the first controller is integrated in the first infrared touch screen, the second controller is integrated in the second infrared touch screen, and the first controller and the second controller are in communication connection through the connection interface;

wherein, under the condition that the first infrared touch panel is spliced with the second infrared touch screen, the first controller or the second controller is used for: setting a master controller and a slave controller according to a preset master-slave set instruction, wherein the preset master-slave set instruction is used for enabling one controller of the first controller or the second controller to be the master controller and the other controller to be the slave controller, an infrared touch screen controlled by the master controller is a master infrared touch screen, and an infrared touch screen controlled by the slave controller is a slave infrared touch screen;

the master controller is configured to: sending a synchronization instruction to the slave controller, wherein the synchronization instruction is used for enabling the time of the master infrared touch screen to be consistent with the time of the slave infrared touch screen;

the slave controller is configured to: and controlling the slave infrared touch screen and the master infrared touch screen to start scanning at the same time according to the synchronous instruction.

10. The infrared touch screen of claim 9,

the master controller is specifically configured to: controlling the main infrared touch screen to scan according to a preset first scanning instruction; sending a preset second scanning instruction to the slave controller;

the slave controller is specifically configured to: performing touch scanning on the slave infrared touch screen according to the preset second scanning instruction;

the preset second scanning instruction is used for controlling the first infrared emitting element of the slave infrared touch screen to emit infrared rays under the condition of i +1 th scanning, and the first infrared receiving element of the slave infrared touch screen to receive the infrared rays; under the condition of the ith scanning, controlling a first infrared receiving element of the slave infrared touch screen to pause receiving infrared rays; i is odd or even.