CN114550642B - LED interactive display floor tile screen - Google Patents

LED interactive display floor tile screen Download PDF

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Publication number
CN114550642B
CN114550642B CN202210167792.6A CN202210167792A CN114550642B CN 114550642 B CN114550642 B CN 114550642B CN 202210167792 A CN202210167792 A CN 202210167792A CN 114550642 B CN114550642 B CN 114550642B
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sensing
module
induction
sensing module
received
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CN114550642A (en
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王立金
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Shenzhen Dingli Display Technology Co ltd
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Shenzhen Dingli Display Technology Co ltd
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F19/00—Advertising or display means not otherwise provided for
    • G09F19/22—Advertising or display means on roads, walls or similar surfaces, e.g. illuminated
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Marketing (AREA)
  • Computer Hardware Design (AREA)
  • User Interface Of Digital Computer (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

The invention relates to an LED interactive display floor tile screen, which comprises a transparent mask and a PCB (printed circuit board) which are sequentially arranged; a plurality of LED lamps with fixed intervals are arranged on the first surface of the PCB; a plurality of plate holes penetrating through the PCB are formed in the PCB in the LED interactive display floor tile screen; an induction circuit board is arranged on the second surface of the PCB in a one-to-one correspondence with each plate hole; each induction circuit board is provided with an induction module for sending out induction signals and/or receiving the induction signals; each sensing module is connected with the control module; each sensing module corresponds to the plate holes one by one so as to realize that sensing signals sent by the sensing modules can pass through the plate holes; and the control module is used for controlling the brightness of the LED lamp corresponding to the sensing module on the first surface of the transparent mask based on the sensing signal sent by the sensing module and/or the received sensing signal.

Description

LED interactive display floor tile screen
Technical Field
The invention relates to the technical field of LED display screen interaction induction, in particular to an LED interaction display floor tile screen.
Background
The huge effect of the LED floor tile screen in stage performance is utilized to be very great, and the scene live broadcast, highlight scene, slow motion playback, close-up lens, construction of special background environment and the like are brought to an immersive audio-visual feast.
However, the brightness generated by the LED lamps of the existing LED interactive floor tile screen is fixed and unchanged, and the pressure on the LED floor tile screen is different in the use process of a user, so that the customer experience is not affected.
Disclosure of Invention
First, the technical problem to be solved
In view of the above-mentioned drawbacks and shortcomings of the prior art, the present invention provides an LED interactive display tile screen.
(II) technical scheme
In order to achieve the above purpose, the main technical scheme adopted by the invention comprises the following steps:
the embodiment of the invention provides an LED interactive display floor tile screen, which comprises a transparent mask and a PCB (printed circuit board) which are sequentially arranged;
a plurality of LED lamps with fixed intervals are arranged on the first surface of the PCB;
the first surface of the PCB is the surface of the PCB close to the transparent mask;
a plurality of plate holes penetrating through the PCB are formed in the PCB in the LED interactive display floor tile screen;
an induction circuit board is arranged on the second surface of the PCB in a one-to-one correspondence with each plate hole;
each induction circuit board is provided with an induction module for sending induction signals and/or receiving induction signals;
each sensing module is connected with the control module;
each sensing module corresponds to the plate holes one by one so as to realize that sensing signals sent by the sensing modules can pass through the plate holes;
the control module is used for controlling the brightness of the LED lamp corresponding to the sensing module on the first surface of the transparent mask based on the sensing signal sent by the sensing module and/or the received sensing signal.
Preferably, the method comprises the steps of,
each induction circuit board is connected to the PCB through a connector;
a plurality of LED lamps with fixed intervals are arranged on the first surface of the PCB in a first array;
the plate holes on the second surface of the PCB are arranged in a second array;
each plate hole arranged in a second array on the second surface of the PCB is arranged at a first position;
the first position is the center of a rectangle formed by any two adjacent rows and any two adjacent columns in the first array.
Preferably, the method comprises the steps of,
convex lenses are arranged in each plate hole.
Preferably, the method comprises the steps of,
the sensing module includes: an infrared sensing device and a laser sensing device;
the infrared sensing device comprises an infrared emitting device and an infrared receiving device, wherein the infrared emitting device is used for emitting infrared rays which pass through the plate holes and are perpendicular to the LED floor tile screen, and the infrared receiving device is used for receiving the reflected infrared rays;
the laser sensing device comprises a laser emitting device and a laser receiving device, wherein the laser emitting device is used for emitting laser which passes through the plate holes and is perpendicular to the LED floor tile screen, and the laser receiving device is used for receiving the reflected laser within a preset distance range;
the sensing signal includes: infrared and laser;
the sensing signal sent by the sensing module has a pulse period.
Preferably, the method comprises the steps of,
the sensing module corresponds to the center of the convex lens;
a first distance is reserved between the sensing module and the convex lens;
the first distance is the distance of the focal length of the convex lens;
the plate holes are circular.
Preferably, the method comprises the steps of,
the control module is used for controlling the brightness of the LED lamp corresponding to the sensing module on the first surface of the transparent mask based on the sensing signal sent and/or received by the sensing module, and specifically comprises the following steps:
the control module judges whether each sensing module receives sensing signals or not and obtains a first judging result;
determining a first sensing module and a second sensing module in the sensing modules based on the first judging result;
the first sensing module is a sensing module which does not receive sensing signals;
the second sensing module is a sensing module for receiving the sensing signal;
and the control module controls the brightness of the LED lamp corresponding to the second sensing module according to the sensing signal sent by the second sensing module and the received sensing signal.
Preferably, the method comprises the steps of,
the control module controls the brightness of the LED lamp corresponding to the second sensing module according to the sensing signal sent by the second sensing module and the received sensing signal, and specifically includes:
the control module acquires the induction signal time T received by the second induction module according to the induction signal sent by the second induction module and the received induction signal;
the time T of the induction signal received by the second induction module is the time of the induction signal sent by the induction module and the induction signal received by the induction module in the pulse period;
judging whether the absolute value of the difference between the sensing signal time T received by the second sensing module and the first time exceeds a preset threshold value or not;
the first time is an average value of the induction signal time T received by all the second induction modules;
and if the absolute value of the difference between the sensing signal time T received by the second sensing module and the first time exceeds a preset threshold value, the control module controls the brightness of the LED lamp corresponding to the second sensing module according to the first time.
Preferably, the method comprises the steps of,
the control module controls the brightness of the LED lamp corresponding to the second sensing module according to the first time, and specifically comprises the following steps:
the control module controls the brightness of the LED lamp corresponding to the second induction module by controlling the power supply current of the LED lamp corresponding to the second induction module according to the first time by adopting a formula (1);
the formula (1) is:
I＝(c i first time) +d;
the c i A constant corresponding to the second sensing module is preset;
d is a preset fixed value;
i is the power supply current of the LED lamp corresponding to the second induction module.
Preferably, the method comprises the steps of,
and if the absolute value of the difference between the sensing signal time T received by the second sensing module and the first time does not exceed a preset threshold value, the control module controls the brightness of the LED lamp corresponding to the second sensing module according to the sensing signal time T received by the second sensing module.
Preferably, the method comprises the steps of,
the control module controls the brightness of the LED lamp corresponding to the second sensing module by controlling the current of the LED lamp corresponding to the second sensing module according to the sensing signal time T received by the second sensing module by adopting a formula (2);
the formula (2) is:
I＝(c i the sensing signal time T) +D received by the second sensing module.
(III) beneficial effects
The beneficial effects of the invention are as follows: according to the LED interactive display floor tile screen, as the PCB circuit board in the LED interactive display floor tile screen is provided with the plurality of plate holes penetrating through the PCB circuit board; an induction circuit board is arranged on the second surface of the PCB in a one-to-one correspondence with each plate hole; each induction circuit board is provided with an induction module for sending induction signals and/or receiving induction signals; each sensing module is connected with the control module; each sensing module corresponds to the plate holes one by one so as to realize that sensing signals sent by the sensing modules can pass through the plate holes; the control module controls the brightness of the LED lamp corresponding to the sensing module on the first surface of the transparent mask based on the sensing signal sent by the sensing module and/or the received sensing signal. Compared with the prior art, the LED lamp brightness control device can control the brightness of the LED lamp corresponding to the sensing module on the first surface of the transparent mask through the sensing signal sent by the sensing module and/or the received sensing signal.
Drawings
FIG. 1 is a schematic view of an LED interactive display tile screen structure according to the present invention;
FIG. 2 is a schematic diagram of a PBC circuit board in an LED interactive display tile screen according to an embodiment of the present invention;
FIG. 3 is a schematic diagram illustrating a distance between the sensing module and the convex lens in an embodiment;
fig. 4 is a schematic structural diagram of an LED interactive display tile screen according to an embodiment of the present invention.
[ reference numerals description ]
1: an LED lamp;
2: a plate hole;
3: a PCB circuit board;
4: a transparent mask;
5: an induction circuit board;
6: an induction module;
7: a control module;
8: a plug-in component;
9: a rear cover;
f: a focal point;
f: focal length.
Detailed Description
The invention will be better explained by the following detailed description of the embodiments with reference to the drawings.
In order that the above-described aspects may be better understood, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
Referring to fig. 1 and 4, the embodiment provides an LED interactive display tile screen, which includes a transparent mask 4 and a PCB circuit board 3 sequentially arranged.
A plurality of LED lamps 1 with fixed intervals are arranged on the first surface of the PCB.
The first surface of the PCB is the surface of the PCB, which is close to the transparent mask.
And a plurality of plate holes 2 penetrating through the PCB are arranged on the PCB in the LED interactive display floor tile screen.
And an induction circuit board 5 is arranged on the second surface of the PCB and uniformly corresponds to each plate hole 2.
Each induction circuit board is provided with an induction module 6 for sending out induction signals and/or receiving induction signals.
Wherein each sensing module 6 is connected with a control module 7.
Each sensing module 6 is in one-to-one correspondence with the plate hole 2, so that sensing signals sent by the sensing modules 6 can pass through the plate hole 2.
The control module 7 is configured to control the brightness of the LED lamp corresponding to the sensing module on the first surface of the transparent mask based on the sensing signal sent by the sensing module and/or the received sensing signal.
Referring to fig. 2, in the specific application of the present embodiment, each sensing module corresponds to 3 LED lamps adjacent to the sensing module, that is, an LED lamp located at the upper right of the sensing module, an LED lamp located at the upper left of the sensing module, and an LED lamp located at the lower left of the sensing module.
Referring to fig. 1, in practical application of the present embodiment, each of the sensing circuit boards is inserted on the PCB circuit board through a connector 8.
Referring to fig. 4, a rear cover 9 is further disposed behind the PCB in the LED interactive display tile screen of the present embodiment.
Referring to fig. 2, a plurality of LED lamps 1 with fixed intervals disposed on a first surface of the PCB 3 are arranged in a first array.
The plate holes 2 on the second surface of the PCB 3 are arranged in a second array.
Each plate hole 2 arranged in a second array on the second surface of the PCB 3 is disposed at a first position.
The first position is the center of a rectangle formed by any two adjacent rows and any two adjacent columns in the first array.
In practical application of this embodiment, a convex lens is disposed in each plate hole 2.
In a practical application of this embodiment, the sensing module includes: an infrared sensing device and a laser sensing device.
The infrared sensing device comprises an infrared transmitting device and an infrared receiving device, wherein the infrared transmitting device is used for transmitting infrared rays which pass through the plate holes and are perpendicular to the LED floor tile screen, and the infrared receiving device is used for receiving the reflected infrared rays.
The laser sensing device comprises a laser emitting device and a laser receiving device, wherein the laser emitting device is used for emitting laser which passes through the plate holes and is perpendicular to the LED floor tile screen, and the laser receiving device is used for receiving the reflected laser within a preset distance range.
The sensing signal includes: infrared and laser.
The sensing signal sent by the sensing module has a pulse period.
Referring to fig. 3, in a practical application of the present embodiment, the sensing module corresponds to a center o of the convex lens.
The sensing module is provided with a first distance from the convex lens.
The first distance is the distance of the focal length f of the convex lens.
The plate holes are circular.
In this embodiment, since the convex lens is added in the hole of the PCB 3, the area of the sensing signal that can be received is significantly increased, and the sensitivity of the LED tile display screen in this embodiment is increased.
In an actual application of this embodiment, the control module is configured to control, based on the sensing signal sent and/or received by the sensing module, the brightness of the LED lamp on the first surface of the transparent mask, where the LED lamp corresponds to the sensing module, and specifically includes:
the control module judges whether each sensing module receives the sensing signal or not, and a first judging result is obtained.
And determining a first sensing module and a second sensing module in the sensing modules based on the first judging result.
The first sensing module is a sensing module which does not receive sensing signals.
The second sensing module is a sensing module for receiving the sensing signal.
And the control module controls the brightness of the LED lamp corresponding to the second sensing module according to the sensing signal sent by the second sensing module and the received sensing signal.
In a specific application of the embodiment, if a user steps on the LED interactive display tile screen in the embodiment, the sensing signal sent by the sensing module in the LED interactive display tile screen in the embodiment is reflected. The sensing module which does not receive the sensing signal is a part which is not stepped on. For the sensing module (namely the first sensing module) of the part, the control module does not light according to the LED lamp corresponding to the first sensing module.
In an actual application of this embodiment, the controlling module controls the brightness of the LED lamp corresponding to the second sensing module according to the sensing signal sent by the second sensing module and the received sensing signal, and specifically includes:
the control module obtains the induction signal time T received by the second induction module according to the induction signal sent by the second induction module and the received induction signal.
The time T of the induction signal received by the second induction module is the time of the induction signal sent by the induction module and the induction signal received by the induction module in the pulse period.
For example, if the pulse period is 10ms, the sensing module sends out sensing signals every 10ms, when the sensing signals are sent out and the reflected sensing signals are received, the time from sending out to receiving is the sensing signal time T received by the second sensing module, and in practical application, the distances between the sensing module and the contact object are different due to different contact pressures of the floor tile screen for the LED interactive display, so that the sensing signal time T received by the corresponding second sensing module is also different.
And judging whether the absolute value of the difference between the sensing signal time T received by the second sensing module and the first time exceeds a preset threshold value.
The first time is an average value of the sensing signal time T received by all the second sensing modules.
And if the absolute value of the difference between the sensing signal time T received by the second sensing module and the first time exceeds a preset threshold value, the control module controls the brightness of the LED lamp corresponding to the second sensing module according to the first time.
In an actual application of this embodiment, the control module controls the brightness of the LED lamp corresponding to the second sensing module according to the first time, and specifically includes:
and the control module controls the brightness of the LED lamp corresponding to the second induction module by controlling the power supply current of the LED lamp corresponding to the second induction module according to the first time by adopting the formula (1).
The formula (1) is:
I＝(c i first time) +d.
The c i Is a preset constant corresponding to the second sensing module.
D is a fixed value set in advance.
I is the power supply current of the LED lamp corresponding to the second induction module.
In an actual application of the embodiment, if the absolute value of the difference between the sensing signal time T received by the second sensing module and the first time does not exceed a preset threshold, the control module controls the brightness of the LED lamp corresponding to the second sensing module according to the sensing signal time T received by the second sensing module.
In an actual application of the embodiment, the control module controls the brightness of the LED lamp corresponding to the second sensing module by controlling the current of the LED lamp corresponding to the second sensing module according to the sensing signal time T received by the second sensing module by adopting formula (2).
The formula (2) is:
I＝(c i the sensing signal time T) +D received by the second sensing module.
According to the LED interactive display floor tile screen, as the PCB circuit board in the LED interactive display floor tile screen is provided with the plurality of plate holes penetrating through the PCB circuit board; an induction circuit board is arranged on the second surface of the PCB in a one-to-one correspondence with each plate hole; each induction circuit board is provided with an induction module for sending induction signals and/or receiving induction signals; each sensing module is connected with the control module; each sensing module corresponds to the plate holes one by one so as to realize that sensing signals sent by the sensing modules can pass through the plate holes; the control module controls the brightness of the LED lamp corresponding to the sensing module on the first surface of the transparent mask based on the sensing signal sent by the sensing module and/or the received sensing signal. Compared with the prior art, the LED lamp brightness control device can control the brightness of the LED lamp corresponding to the sensing module on the first surface of the transparent mask through the sensing signal sent by the sensing module and/or the received sensing signal.
Since the system described in the foregoing embodiments of the present invention is a system for implementing the method of the foregoing embodiments of the present invention, those skilled in the art will be able to understand the specific structure and modification of the system based on the method of the foregoing embodiments of the present invention, and thus will not be described in detail herein. All systems used in the methods of the above embodiments of the present invention are within the scope of the present invention.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions.
It should be noted that in the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The use of the terms first, second, third, etc. are for convenience of description only and do not denote any order. These terms may be understood as part of the component name.
Furthermore, it should be noted that in the description of the present specification, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with the embodiment or example being included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art upon learning the basic inventive concepts. Therefore, the appended claims should be construed to include preferred embodiments and all such variations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, the present invention should also include such modifications and variations provided that they come within the scope of the following claims and their equivalents.

Claims (5)

1. The LED interactive display floor tile screen is characterized by comprising a transparent mask and a PCB (printed circuit board) which are sequentially arranged;
a plurality of LED lamps with fixed intervals are arranged on the first surface of the PCB;
the first surface of the PCB is the surface of the PCB close to the transparent mask;
a plurality of plate holes penetrating through the PCB are formed in the PCB in the LED interactive display floor tile screen;
an induction circuit board is arranged on the second surface of the PCB in a one-to-one correspondence with each plate hole;
each induction circuit board is provided with an induction module for sending induction signals and/or receiving induction signals;
each sensing module is connected with the control module;
each sensing module corresponds to the plate holes one by one so as to realize that sensing signals sent by the sensing modules can pass through the plate holes;
the control module is used for controlling the brightness of the LED lamp corresponding to the sensing module on the first surface of the transparent mask based on the sensing signal sent by the sensing module and/or the received sensing signal;
each induction circuit board is connected to the PCB through a connector;
a plurality of LED lamps with fixed intervals are arranged on the first surface of the PCB in a first array;
the plate holes on the second surface of the PCB are arranged in a second array;
each plate hole arranged in a second array on the second surface of the PCB is arranged at a first position;
the first position is the center of a rectangle formed by any two adjacent rows and any two adjacent columns in the first array;
convex lenses are arranged in each plate hole;
the sensing module includes: an infrared sensing device and a laser sensing device;
the infrared sensing device comprises an infrared emitting device and an infrared receiving device, wherein the infrared emitting device is used for emitting infrared rays which pass through the plate holes and are perpendicular to the LED floor tile screen, and the infrared receiving device is used for receiving the reflected infrared rays;
the laser sensing device comprises a laser emitting device and a laser receiving device, wherein the laser emitting device is used for emitting laser which passes through the plate holes and is perpendicular to the LED floor tile screen, and the laser receiving device is used for receiving the reflected laser within a preset distance range;
the sensing signal includes: infrared and laser;
the induction signal sent by the induction module has a pulse period;
the sensing module corresponds to the center of the convex lens;
a first distance is reserved between the sensing module and the convex lens;
the first distance is the distance of the focal length of the convex lens;
the plate holes are round;
the control module is used for controlling the brightness of the LED lamp corresponding to the sensing module on the first surface of the transparent mask based on the sensing signal sent and/or received by the sensing module, and specifically comprises the following steps:
the control module judges whether each sensing module receives sensing signals or not and obtains a first judging result;
determining a first sensing module and a second sensing module in the sensing modules based on the first judging result;
the first sensing module is a sensing module which does not receive sensing signals;
the second sensing module is a sensing module for receiving the sensing signal;
and the control module controls the brightness of the LED lamp corresponding to the second sensing module according to the sensing signal sent by the second sensing module and the received sensing signal.
2. The LED interactive display tile screen of claim 1, wherein,
the control module controls the brightness of the LED lamp corresponding to the second sensing module according to the sensing signal sent by the second sensing module and the received sensing signal, and specifically includes:
the control module acquires the induction signal time T received by the second induction module according to the induction signal sent by the second induction module and the received induction signal;
the time T of the induction signal received by the second induction module is the time of the induction signal sent by the induction module and the induction signal received by the induction module in the pulse period;
judging whether the absolute value of the difference between the sensing signal time T received by the second sensing module and the first time exceeds a preset threshold value or not;
the first time is an average value of the induction signal time T received by all the second induction modules;
and if the absolute value of the difference between the sensing signal time T received by the second sensing module and the first time exceeds a preset threshold value, the control module controls the brightness of the LED lamp corresponding to the second sensing module according to the first time.
3. The LED interactive display tile screen of claim 2, wherein,
the control module controls the brightness of the LED lamp corresponding to the second sensing module according to the first time, and specifically comprises the following steps:
the control module controls the brightness of the LED lamp corresponding to the second induction module by controlling the power supply current of the LED lamp corresponding to the second induction module according to the first time by adopting a formula (1);
the formula (1) is:
I＝(c i first time) +d;
the c i A constant corresponding to the second sensing module is preset;
d is a preset fixed value;
i is the power supply current of the LED lamp corresponding to the second induction module.
4. The LED interactive display tile screen of claim 3, wherein,
and if the absolute value of the difference between the sensing signal time T received by the second sensing module and the first time does not exceed a preset threshold value, the control module controls the brightness of the LED lamp corresponding to the second sensing module according to the sensing signal time T received by the second sensing module.
5. The LED interactive display tile screen of claim 4, wherein,
the control module controls the brightness of the LED lamp corresponding to the second sensing module by controlling the current of the LED lamp corresponding to the second sensing module according to the sensing signal time T received by the second sensing module by adopting a formula (2);
the formula (2) is:
I＝(c i the sensing signal time T) +D received by the second sensing module.
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