CN112885290A - Display screen control method, media playing control equipment and display control system - Google Patents
Display screen control method, media playing control equipment and display control system Download PDFInfo
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- CN112885290A CN112885290A CN201911208005.2A CN201911208005A CN112885290A CN 112885290 A CN112885290 A CN 112885290A CN 201911208005 A CN201911208005 A CN 201911208005A CN 112885290 A CN112885290 A CN 112885290A
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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]
Abstract
The embodiment of the invention discloses a display screen control method, a media play control device and a display control system. The display screen control method includes, for example: receiving sensing information representing whether a target object exists in a preset distance range of a target display screen; inquiring a pre-stored mapping relation table of sensing information and a broadcast control instruction according to the sensing information to obtain a target broadcast control instruction corresponding to the sensing information, wherein the mapping relation table of the sensing information and the broadcast control instruction comprises a screen opening instruction and a screen closing instruction; and controlling the target display screen according to the target broadcast control instruction. The embodiment of the invention can realize intelligent control on the target display screen.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a display screen control method, a media playing control device, and a display control system.
Background
Currently, display screens such as LED display screens are widely used in various places such as various indoor and outdoor shopping centers, hotels, airports, chain stores, and the like. In order to control the LED display screen (for example, control the display screen to open or close), in the prior art, a user usually controls the LED display screen by manually sending a control instruction to a media playing control device (for example, a multimedia playing box) by means of upper computer software, but this manual control method is difficult to achieve intelligent control of the LED display screen.
Disclosure of Invention
Therefore, to overcome the defects and shortcomings in the prior art, embodiments of the present invention provide a display screen control method, a media playing control device, and a display control system, which can implement intelligent control on a target display screen.
On one hand, the display screen control method provided by the embodiment of the invention comprises the following steps: receiving sensing information representing whether a target object exists in a preset distance range of a target display screen; inquiring a pre-stored mapping relation table of sensing information and broadcast control instructions according to the sensing information to obtain a target broadcast control instruction corresponding to the sensing information, wherein the mapping relation table of the sensing information and the broadcast control instructions comprises at least one broadcast control instruction and sensing information which has a preset corresponding relation with the broadcast control instruction; and controlling the target display screen according to the target broadcast control instruction.
In the above scheme, the display screen control method includes first receiving sensing information representing whether a target object (e.g., a person) exists within a preset distance range of a target display screen, then querying a pre-stored sensing information and broadcast control instruction mapping relation table according to the sensing information to obtain a target broadcast control instruction corresponding to the sensing information, where the sensing information and broadcast control instruction mapping relation table includes at least one broadcast control instruction and sensing information having a preset corresponding relation with the broadcast control instruction, and finally controlling the target display screen according to the target broadcast control instruction.
In an embodiment of the present invention, the controlling the target display screen according to the target broadcast control instruction includes: sending the target broadcast control instruction to a programmable logic device by an embedded processor, and controlling the target display screen to execute corresponding action by the programmable logic device according to the target broadcast control instruction; the broadcasting control instruction comprises a screen opening instruction, a screen closing instruction and a program inserting instruction, and the corresponding action comprises screen opening, screen closing or displaying of a program to be inserted.
In an embodiment of the present invention, the receiving sensing information indicating whether a target object exists within a preset distance range of a target display screen specifically includes: controlling an infrared sensor to detect whether a target object exists in a preset distance range of the target display screen and obtaining a detection result; and receiving sensing information which is sent by the infrared sensor and contains the detection result.
In another aspect, an embodiment of the present invention provides a media playing and controlling device, including: the communication interface is used for connecting the infrared sensor; the embedded processor is electrically connected with the communication interface; the programmable logic device is electrically connected with the embedded processor and is used for electrically connecting the target display screen; wherein the embedded processor is to: receiving sensing information provided by the infrared sensor from the communication interface, wherein the sensing information is used for representing whether a target object exists in a preset distance range of the target display screen, and the preset distance range depends on the sensible distance of the infrared sensor; inquiring a pre-stored mapping relation table of sensing information and a broadcast control instruction according to the sensing information to obtain a target broadcast control instruction corresponding to the sensing information and sending the target broadcast control instruction to the programmable logic device, wherein the mapping relation table of the sensing information and the broadcast control instruction comprises at least one broadcast control instruction and sensing information which has a preset corresponding relation with the broadcast control instruction; and the programmable logic device is used for controlling the target display screen according to the target broadcast control instruction.
In the above solution, firstly, the embedded processor of the media play control device receives sensing information provided by the infrared sensor and representing whether a target object (e.g., a person) exists in a preset range of the target display screen from the communication interface, then, the embedded processor queries a pre-stored mapping relationship table of the sensing information and the play control instruction according to the sensing information to obtain a target play control instruction corresponding to the sensing information, where the mapping relationship table of the sensing information and the play control instruction includes at least one play control instruction and sensing information having a preset corresponding relationship with the play control instruction, and finally, the programmable logic device of the media play control device controls the target display screen according to the target play control instruction, so that the media play control device can determine the target play control instruction according to the sensing information and further control the target display screen based on the target play control instruction, therefore, intelligent control over the target display screen is achieved, and man-machine interaction is enhanced.
In an embodiment of the present invention, the embedded processor is configured to receive sensing information provided by the infrared sensor from the communication interface, specifically: controlling the infrared sensor to detect whether a target object exists in a preset distance range of the target display screen and obtaining a detection result; and receiving the sensing information which is sent by the infrared sensor and contains the detection result from the communication interface.
In an embodiment of the present invention, the programmable logic device is configured to control the target display screen according to the target broadcast control instruction, and specifically includes: the programmable logic device is used for controlling the target display screen to execute corresponding actions according to the target broadcast control instruction; the broadcasting control instruction comprises a screen opening instruction, a screen closing instruction and a program inserting instruction, and the corresponding action comprises screen opening, screen closing or displaying of a program to be inserted.
In another aspect, an embodiment of the present invention provides a display control system, including: the media broadcast control equipment is provided with a communication interface and a network port; the target display screen is electrically connected with the network port; the infrared sensor is electrically connected with the communication interface and used for detecting whether a target object exists in a preset distance range of the target display screen to obtain a detection result and sending sensing information containing the detection result to the media broadcast control equipment, wherein the preset distance range depends on the sensing distance of the infrared sensor; wherein the media play control device is configured to: receiving the sensed information from the communication interface; inquiring a pre-stored mapping relation table of sensing information and broadcast control instructions according to the sensing information to obtain a target broadcast control instruction corresponding to the sensing information, wherein the mapping relation table of the sensing information and the broadcast control instructions comprises at least one broadcast control instruction and sensing information which has a preset corresponding relation with the broadcast control instruction; and controlling the target display screen according to the target broadcast control instruction.
In the scheme, the media broadcast control equipment is applied to the display control system, so that the intelligent control of the target display screen is realized, the man-machine interaction is enhanced, specifically, the media broadcast control equipment firstly receives sensing information representing whether a target object exists in a preset distance range of the target display screen from the infrared sensor through the communication interface, then inquiring a pre-stored mapping relation table of the sensing information and the broadcast control instruction according to the sensing information to obtain a target broadcast control instruction corresponding to the sensing information, wherein the mapping relation table of the sensing information and the broadcasting control instruction comprises at least one broadcasting control instruction and the sensing information having a preset corresponding relation with the broadcasting control instruction, and finally the target display screen is controlled according to the target broadcasting control instruction, so that, the target broadcasting control instruction can be determined according to the sensing information, and then the target display screen is controlled based on the target broadcasting control instruction.
In one embodiment of the present invention, the media playback control device further includes an embedded processor and a programmable logic device electrically connected to the embedded processor; wherein the embedded processor is to: receiving the sensed information from the communication interface; inquiring a pre-stored mapping relation table of the sensing information and a broadcasting control instruction according to the sensing information to obtain the target broadcasting control instruction corresponding to the sensing information and sending the target broadcasting control instruction to the programmable logic device; and the programmable logic device is used for controlling the target display screen according to the target broadcast control instruction.
In an embodiment of the present invention, the programmable logic device is configured to control the target display screen according to the target broadcast control instruction, and specifically includes: the programmable logic device is used for controlling the target display screen to execute corresponding actions according to the target broadcast control instruction; the broadcasting control instruction comprises a screen opening instruction, a screen closing instruction and a program inserting instruction, and the corresponding action comprises screen opening, screen closing or displaying of a program to be inserted.
In an embodiment of the present invention, the receiving the sensing information from the communication interface specifically includes: periodically receiving the sensed information from the communication interface; the embedded processor is further configured to: comparing the currently acquired sensing information with the previously acquired sensing information; responding to the currently acquired sensing information is the same as the previously acquired sensing information, and the embedded processor does not execute the inquiry of a pre-stored mapping relation table of the sensing information and a broadcast control instruction according to the currently acquired sensing information; or inquiring a pre-stored mapping relation table of the sensing information and the broadcast control instruction based on the currently acquired sensing information to obtain a currently inquired target broadcast control instruction; comparing the currently inquired target broadcast control instruction with the last inquired target broadcast control instruction; and in response to that the currently inquired target broadcast control instruction is the same as the last inquired target broadcast control instruction, the embedded processor does not send the currently inquired target broadcast control instruction to the programmable logic device.
One or more of the above technical solutions may have the following advantages or beneficial effects: the display screen control method, the media playing control equipment and the display control system can realize intelligent control on the target display screen and enhance the man-machine interaction.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic flowchart of a display screen control method according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a display control system according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a media playing and controlling device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a display screen control method according to an embodiment of the present invention is shown. The display screen control method includes, for example, the steps of:
s102, receiving sensing information representing whether a target object exists in a preset distance range of a target display screen;
s104, inquiring a pre-stored mapping relation table of sensing information and broadcast control instructions according to the sensing information to obtain a target broadcast control instruction corresponding to the sensing information, wherein the mapping relation table of the sensing information and the broadcast control instructions comprises at least one broadcast control instruction and sensing information which has a preset corresponding relation with the broadcast control instruction;
and S106, controlling the target display screen according to the target broadcast control instruction.
In order to facilitate understanding of the embodiment of the present invention, the display screen control method of the present embodiment will be described in detail with reference to fig. 2 to 3.
As shown in fig. 2, a display control system 500 is shown. The display control system 500 includes, for example, an infrared sensor 400, a media playback device 200, and a target display screen 300. The media playing and controlling device 200 is electrically connected to the infrared sensor 400 and the target display screen 300, and the target display screen 300 may be an LED display screen, for example.
As shown in fig. 3, the media playback and control device 200 mainly includes a communication interface 201, an embedded processor 202, and a programmable logic device 203; wherein the embedded processor 202 is electrically connected to the communication interface 201 and the programmable logic device 203. In addition, the media playback control device 200 further includes an ethernet physical layer transceiver 204, a network transformer 205, and a network port 206, wherein the network transformer 205 is electrically connected to the programmable logic device 203 through the ethernet physical layer transceiver 204, and the network port 206 is electrically connected to the network transformer 205. For example, the communication interface 201 may be, for example, a serial communication interface such as a Universal Asynchronous Receiver Transmitter (UART) interface, the embedded processor 202 may be, for example, an ARM processor, the programmable logic device 203 may be, for example, a Field Programmable Gate Array (FPGA) device, the ethernet PHY transceiver 204 may be, for example, a gigabit ethernet PHY chip, and the type of the network port 206 may be, for example, RJ 45; of course, the present embodiment is not limited thereto. Furthermore, the network port 206, the network transformer 205 and the ethernet physical layer transceiver 204 in this embodiment are not limited to include only one, and may include a plurality of ports, which is not specifically limited herein.
Specifically, the infrared sensor 400 is connected with the communication interface 201 of the media play control device 200 through the signal output unit 406 to electrically connect the infrared sensor 400 and the media play control device 200. The media playback device 200 is electrically connected to the target display screen 300 (specifically, to the network port of the target display screen 300) through the network port 206.
The display screen control method of the present embodiment may be executed by the media playback device 200, for example, and the following describes in detail the process of executing the display screen control method by the media playback device 200.
First, the media play and control device 200 receives sensing information indicating whether a target object exists within a preset distance range of the target display screen 300 from the infrared sensor 400. Specifically, the media playing and controlling device 200 (specifically, the embedded processor 202 of the media playing and controlling device 200) controls the ultrasonic sensor 400 to detect whether a target object exists within a preset distance range of the target display screen, after the ultrasonic sensor 400 receives a control instruction of the media playing and controlling device 200, the infrared sensor 400 detects whether a target object exists within the preset distance range of the target display screen (a person exists within the preset distance range or no person exists within the preset distance range) and obtains a detection result, and sends sensing information containing the detection result to the communication interface 201 of the media playing and controlling device 200 so that the media playing and controlling device 200 receives the sensing information from the infrared sensor 400, wherein the preset distance range depends on the sensible distance of the infrared sensor 400, for example, the sensing range of a certain type of infrared sensor 400 is 0-5 meters (corresponding to the sensible distance of the infrared sensor 400 being 5 meters), the corresponding preset distance range value is 0-5 meters. For example, taking the sensing range of the infrared sensor 400 as 0-5 meters as an example, when the infrared sensor 400 senses that there is a person within the range of 0-5 meters, a high-level signal value (i.e., sensing information) identifying the person within the range of 0-5 meters is generated, and the high-level signal value is sent to the media playing and controlling device 200; when the infrared sensor 400 senses that there is no person within the range of 0-5 meters, a low level signal value is generated and transmitted to the media playback device 200. Here, the high level signal value and the low level signal value respectively indicate that a person is present in the predetermined distance range and that a person is not present in the predetermined distance range, and in other embodiments, the high level signal value and the low level signal value respectively indicate that a person is not present in the predetermined distance range and that a person is present in the predetermined distance range. In addition, in other embodiments, in addition to identifying the sensing information by the sum of the high level signal and the low level signal, the sensing information may also be identified by using other identifiers (for example, binary coded numbers), as long as it can indicate whether the target object exists within the preset distance range of the target display screen 300, and the embodiment of the present invention is not particularly limited. It should be noted that, in this embodiment, the infrared sensor 400 may be, for example, disposed in a plane where the display surface of the target display screen 300 is located, and it may be, for example, located at an upper left corner, a top portion, an upper right corner, a lower left corner, or a lower right corner of the target display screen 300.
Then, after the embedded processor 202 of the media play control device 200 receives the sensing information from the communication interface 201, the embedded processor 202 queries a pre-stored mapping relationship table of the sensing information and the play control instruction according to the sensing information to obtain a target play control instruction corresponding to the sensing information, where the mapping relationship table of the sensing information and the play control instruction includes at least one play control instruction and sensing information having a preset corresponding relationship with the play control instruction. For example, the mapping relationship table of the sensing information and the play command may be stored in a non-volatile memory of the Media play control device 200, such as an EMMC (Embedded Multi Media Card). The mapping relation table between the sensing information and the broadcast control instruction may be imported into the EMMC through a serial communication interface of the media broadcast control device 200 by using a peripheral device, such as a usb disk, or may be issued to the EMMC of the media broadcast control device 200 by a user through upper computer software on a PC, which is not limited in the embodiments of the present invention. The pre-stored mapping relationship table of sensing information and broadcast control instruction may represent, for example: when the sensing information is a high level signal value, controlling the target display screen 300 to open and play a specific program to improve the attention of the specific program, or displaying a program to be inserted; when the sensing information is a low level signal value, the target display screen 300 is controlled to be turned off to save energy and the target display screen 200 may be used as a mirror to play a decorative role. Of course, in other embodiments, when the sensing information is a high level signal value, the target display screen 300 may be controlled to be turned off to save energy and enable the target display screen 200 to be used as a mirror to play a decorative role; when the sensing information is a low level signal value, the target display screen 300 is controlled to be opened and a specific program is played to improve the attention of the specific program or display a program to be inserted. It should be noted that the screen-on command and the screen-off command correspond to lighting the target display screen 300 and closing the target display screen 300, respectively.
Then, the embedded processor 202 sends the target broadcast control instruction to the programmable logic device 203, and the programmable logic device 203 controls the target display screen 300 to execute a corresponding action according to the target broadcast control instruction. The broadcast control instruction comprises a screen opening instruction, a screen closing instruction and a program inserting instruction, and correspondingly, the corresponding action comprises screen opening, screen closing or displaying of a program to be inserted. For example, when the target broadcast control instruction is a screen-on instruction or a screen-off instruction, the programmable logic device 203 receives the screen-on instruction or the screen-off instruction from the embedded processor 202; and then controlling the target display screen 300 to perform screen opening operation or screen closing operation according to the screen opening instruction or the screen closing instruction. Or, when the target broadcast control instruction is a program insertion instruction, the embedded processor 202 acquires a program to be inserted (for example, acquires the program to be inserted from a nonvolatile memory of the media broadcast control device 200) according to the program insertion instruction, and sends the program to be inserted to the programmable logic device 203; then the programmable logic device 203 is used to control the target display screen 300 to display the program to be inserted according to the program to be inserted.
It is further noted that the media playback device 200 will typically periodically obtain the sensing information from the infrared sensor 400, and then: 1) comparing the currently acquired sensing information with the sensing information acquired last time, if the currently acquired sensing information is the same as the previously acquired sensing information, not repeatedly inquiring a mapping relation table of the prestored sensing information and the broadcast control instruction so as to reduce the resource occupation of the embedded processor 202, otherwise, if the currently acquired sensing information is different from the previously acquired sensing information, continuously executing inquiry and controlling the target display screen based on a target broadcast control instruction acquired through inquiry; or 2) inquiring a pre-stored mapping relation table of the sensing information and the broadcast control instruction based on the currently acquired sensing information to obtain a currently inquired target broadcast control instruction, comparing the currently inquired target broadcast control instruction with the previously inquired target broadcast control instruction, if the currently inquired target broadcast control instruction and the currently inquired target broadcast control instruction are the same, not issuing the currently inquired target broadcast control instruction to the programmable logic device 203 so as to reduce resource occupation of the programmable logic device 203, otherwise, continuing to issue the currently inquired target broadcast control instruction to the programmable logic device 203 to control the target display screen.
In the embodiment, the display screen control method, the media playing control device and the display control system query the sensing information and playing control instruction mapping relation table according to the sensing information representing whether the target object exists in the preset distance range of the target display screen to obtain the target playing control instruction, and control the target display screen based on the target playing control instruction, so that the target display screen can be intelligently controlled, and the man-machine interaction is enhanced.
In addition, it should be understood that the foregoing embodiments are merely exemplary illustrations of the present invention, and the technical solutions of the embodiments can be arbitrarily combined and collocated without conflict between technical features and structural contradictions, which do not violate the purpose of the present invention.
In the embodiments provided in the present invention, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, a division of a unit is merely a division of one logic function, and an actual implementation may have another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may also be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, each functional unit/module in the embodiments of the present invention may be integrated into one processing unit/module, or each unit/module may exist alone physically, or two or more units/modules may be integrated into one unit/module. The integrated units/modules may be implemented in the form of hardware, or may be implemented in the form of hardware plus software functional units/modules.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A display screen control method is characterized by comprising the following steps:
receiving sensing information representing whether a target object exists in a preset distance range of a target display screen;
inquiring a pre-stored mapping relation table of sensing information and broadcast control instructions according to the sensing information to obtain a target broadcast control instruction corresponding to the sensing information, wherein the mapping relation table of the sensing information and the broadcast control instructions comprises at least one broadcast control instruction and sensing information which has a preset corresponding relation with the broadcast control instruction;
and controlling the target display screen according to the target broadcast control instruction.
2. The display screen control method according to claim 1, wherein the controlling the target display screen according to the target broadcast control instruction comprises: sending the target broadcast control instruction to a programmable logic device by an embedded processor, and controlling the target display screen to execute corresponding action by the programmable logic device according to the target broadcast control instruction;
the broadcasting control instruction comprises a screen opening instruction, a screen closing instruction and a program inserting instruction, and the corresponding action comprises screen opening, screen closing or displaying of a program to be inserted.
3. The display screen control method according to claim 1, wherein the receiving of the sensing information indicating whether the target object exists within the preset distance range of the target display screen specifically includes:
controlling an infrared sensor to detect whether a target object exists in a preset distance range of the target display screen and obtaining a detection result;
and receiving sensing information which is sent by the infrared sensor and contains the detection result.
4. A media playback device, comprising:
the communication interface is used for connecting the infrared sensor;
the embedded processor is electrically connected with the communication interface;
the programmable logic device is electrically connected with the embedded processor and is used for electrically connecting the target display screen;
wherein the content of the first and second substances,
the embedded processor is to:
receiving sensing information provided by the infrared sensor from the communication interface, wherein the sensing information is used for representing whether a target object exists in a preset distance range of the target display screen, and the preset distance range depends on the sensible distance of the infrared sensor; and
inquiring a pre-stored mapping relation table of sensing information and a broadcast control instruction according to the sensing information to obtain a target broadcast control instruction corresponding to the sensing information and sending the target broadcast control instruction to the programmable logic device, wherein the mapping relation table of the sensing information and the broadcast control instruction comprises at least one broadcast control instruction and sensing information which has a preset corresponding relation with the broadcast control instruction; and
and the programmable logic device is used for controlling the target display screen according to the target broadcast control instruction.
5. The media play control device according to claim 4, wherein the embedded processor is configured to receive, from the communication interface, sensing information provided by the infrared sensor, specifically:
controlling the infrared sensor to detect whether a target object exists in a preset distance range of the target display screen and obtaining a detection result;
and receiving the sensing information which is sent by the infrared sensor and contains the detection result from the communication interface.
6. The media playing and controlling device according to claim 4, wherein the programmable logic device is configured to control the target display screen according to the target playing and controlling instruction, and specifically is configured to:
the programmable logic device is used for controlling the target display screen to execute corresponding actions according to the target broadcast control instruction;
the broadcasting control instruction comprises a screen opening instruction, a screen closing instruction and a program inserting instruction, and the corresponding action comprises screen opening, screen closing or displaying of a program to be inserted.
7. A display control system, comprising:
the media broadcast control equipment is provided with a communication interface and a network port;
the target display screen is electrically connected with the network port;
the infrared sensor is electrically connected with the communication interface and used for detecting whether a target object exists in a preset distance range of the target display screen to obtain a detection result and sending sensing information containing the detection result to the media broadcast control equipment, wherein the preset distance range depends on the sensing distance of the infrared sensor;
wherein the media play control device is configured to:
receiving the sensed information from the communication interface;
inquiring a pre-stored mapping relation table of sensing information and broadcast control instructions according to the sensing information to obtain a target broadcast control instruction corresponding to the sensing information, wherein the mapping relation table of the sensing information and the broadcast control instructions comprises at least one broadcast control instruction and sensing information which has a preset corresponding relation with the broadcast control instruction;
and controlling the target display screen according to the target broadcast control instruction.
8. The display control system of claim 7, wherein the media playback device further comprises an embedded processor and a programmable logic device electrically connected to the embedded processor;
wherein the content of the first and second substances,
the embedded processor is to:
receiving the sensed information from the communication interface; and
inquiring a pre-stored mapping relation table of the sensing information and a broadcasting control instruction according to the sensing information to obtain the target broadcasting control instruction corresponding to the sensing information and sending the target broadcasting control instruction to the programmable logic device; and
and the programmable logic device is used for controlling the target display screen according to the target broadcast control instruction.
9. The display control system according to claim 8, wherein the programmable logic device is configured to control the target display screen according to the target broadcast control instruction, specifically:
the programmable logic device is used for controlling the target display screen to execute corresponding actions according to the target broadcast control instruction;
the broadcasting control instruction comprises a screen opening instruction, a screen closing instruction and a program inserting instruction, and the corresponding action comprises screen opening, screen closing or displaying of a program to be inserted.
10. The display control system according to claim 8,
the receiving the sensing information from the communication interface is specifically: periodically receiving the sensed information from the communication interface;
the embedded processor is further configured to:
comparing the currently acquired sensing information with the previously acquired sensing information;
responding to the currently acquired sensing information is the same as the previously acquired sensing information, and the embedded processor does not execute the inquiry of a pre-stored mapping relation table of the sensing information and a broadcast control instruction according to the currently acquired sensing information;
alternatively, the first and second electrodes may be,
inquiring a pre-stored mapping relation table of the sensing information and the broadcast control instruction based on the currently acquired sensing information to obtain a currently inquired target broadcast control instruction;
comparing the currently inquired target broadcast control instruction with the last inquired target broadcast control instruction;
and in response to that the currently inquired target broadcast control instruction is the same as the last inquired target broadcast control instruction, the embedded processor does not send the currently inquired target broadcast control instruction to the programmable logic device.
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