CN110933345A - Method for reducing television standby power consumption, television and storage medium - Google Patents
Method for reducing television standby power consumption, television and storage medium Download PDFInfo
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- CN110933345A CN110933345A CN201911170482.4A CN201911170482A CN110933345A CN 110933345 A CN110933345 A CN 110933345A CN 201911170482 A CN201911170482 A CN 201911170482A CN 110933345 A CN110933345 A CN 110933345A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/63—Generation or supply of power specially adapted for television receivers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/439—Processing of audio elementary streams
- H04N21/4394—Processing of audio elementary streams involving operations for analysing the audio stream, e.g. detecting features or characteristics in audio streams
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
- H04N21/44213—Monitoring of end-user related data
- H04N21/44218—Detecting physical presence or behaviour of the user, e.g. using sensors to detect if the user is leaving the room or changes his face expression during a TV program
Abstract
The invention discloses a method for reducing standby power consumption of a television, the television and a storage medium, wherein the method comprises the following steps: after the television enters a standby state, detecting whether sound is input, and if so, acquiring temperature data within a preset range; and judging whether a person exists in the preset range according to the temperature data, and if so, controlling the television to be out of the standby state. The invention judges whether a person really exists by collecting the temperature data around the television through the infrared temperature sensor on the basis of detecting the voice instruction sent by the user, and determines whether the person wants to use the television through the voice and the human body temperature, thereby avoiding the occurrence of the situation that the person is separated from the standby state without the user existing before the television when only the voice is detected, reducing the standby power consumption of the television with far-field voice function, reducing the energy consumption when the television is not used for a long time and not influencing the normal use.
Description
Technical Field
The present invention relates to the field of television technologies, and in particular, to a method for reducing television standby power consumption, a television, and a storage medium.
Background
At present, the popularity of smart televisions is higher and higher, and particularly, more and more televisions with Far-field voice functions (Far-field speech functions, which means that voice instructions (such as the mandarin chinese) can be understood, and functions such as smart home control, voice shopping, mobile phone recharging, called takeout, audio music playing and the like can be realized at present, so that new human-computer interaction experience is brought); at present, a standby mode of an intelligent television with a far-field voice function mainly works in an AI standby mode (i.e., a standby mode capable of being awakened by voice), and the standby power consumption of the mode is relatively high (in the standby mode, the whole system of a main board is still running, and only the backlight of a screen is turned off), so that the problem of energy waste exists.
Accordingly, the prior art is yet to be improved and developed.
Disclosure of Invention
The invention mainly aims to provide a method for reducing standby power consumption of a television, the television and a storage medium, and aims to solve the problem that in the prior art, when a user does not use the television with a far-field voice function, the standby power consumption is overlarge.
In order to achieve the above object, the present invention provides a method for reducing television standby power consumption, where the method for reducing television standby power consumption includes the following steps:
after the television enters a standby state, detecting whether sound is input, and if so, acquiring temperature data within a preset range;
and judging whether a person exists in the preset range according to the temperature data, and if so, controlling the television to be out of the standby state.
Optionally, the method for reducing the standby power consumption of the television, wherein after the television enters the standby state, whether a sound is input is detected, and if so, temperature data within a preset range is acquired, specifically including:
after the television enters a standby state, detecting whether a user inputs voice through an array microphone;
and if sound input is detected, acquiring the audio data, storing the audio data in a cache, and acquiring temperature data within a preset range through an infrared temperature sensor.
Optionally, the method for reducing standby power consumption of a television, wherein the determining whether a person exists in the preset range according to the temperature data, and if so, controlling the television to leave a standby state specifically includes:
judging whether a person exists in the preset range according to the temperature data acquired by the infrared temperature sensor;
and if the person exists in the preset range, controlling the television to be separated from the standby state.
Optionally, the method for reducing standby power consumption of a television, wherein the determining whether a person exists in the preset range according to the temperature data, and if so, controlling the television to leave a standby state, further includes:
and analyzing the audio data, judging whether the audio data has a wake-up keyword, if so, responding according to the wake-up keyword, and waiting for the input of a voice instruction of a user.
Optionally, the method for reducing standby power consumption of a television, wherein the detecting whether there is a voice input from a user by an array microphone further includes:
and if no sound input is detected, controlling the television to continuously keep the standby state.
Optionally, the method for reducing standby power consumption of a television, wherein the determining whether a person exists in the preset range according to the temperature data collected by the infrared temperature sensor further includes:
if no person exists in the preset range, the television is considered to be triggered by mistake, and the television is controlled to keep the standby state continuously.
Optionally, the method for reducing the standby power consumption of the television, wherein the controlling the television to leave the standby state specifically includes: and controlling the screen of the television not to be opened, and only enabling the CPU to start working.
Optionally, the method for reducing standby power consumption of a television, wherein the preset range is 0 to 5 meters.
In addition, to achieve the above object, the present invention further provides a television, wherein the television includes: the intelligent temperature monitoring system comprises a power supply circuit, an infrared temperature acquisition unit, a sound acquisition unit, a voice processing unit, an intelligent analysis unit, a main control unit, a storage unit and a network module;
the power supply circuit is used for providing power supply logic of the television system;
the infrared temperature acquisition unit is used for acquiring temperature data within a preset range of the television and transmitting the temperature data to the intelligent analysis unit;
the sound acquisition unit is used for acquiring audio data in a preset range of the television and sending the audio data to the voice processing unit;
the voice processing unit is used for carrying out voice screening and signal enhancement processing on the audio data and then transmitting the audio data to the intelligent analysis unit;
the intelligent analysis unit is used for analyzing the temperature data and the processed audio data, judging whether a person exists in the preset range according to the temperature characteristics of the human body, judging whether a wake-up keyword exists according to the audio data, and determining whether the television changes the standby state;
the main control unit is used for controlling the coordination system and carrying out instruction operation according to the state information given by the intelligent analysis unit;
the storage unit is used for storing the awakening key words;
the network module is used for connecting a cloud end and performing semantic analysis on a voice instruction in a television starting state;
the television set further comprises: the program for reducing the television standby power consumption is stored on the storage unit and can run on the main control unit, and when being executed by the main control unit, the program for reducing the television standby power consumption realizes the steps of the method for reducing the television standby power consumption.
In addition, in order to achieve the above object, the present invention further provides a storage medium, wherein the storage medium stores a program for reducing television standby power consumption, and the program for reducing television standby power consumption realizes the steps of the method for reducing television standby power consumption as described above when being executed by the main control unit.
The method comprises the steps of detecting whether sound is input or not after the television enters a standby state, and acquiring temperature data within a preset range if the sound is input; and judging whether a person exists in the preset range according to the temperature data, and if so, controlling the television to be out of the standby state. The invention judges whether a person really exists by collecting the temperature data around the television through the infrared temperature sensor on the basis of detecting the voice instruction sent by the user, and determines whether the person wants to use the television through the voice and the human body temperature, thereby avoiding the occurrence of the situation that the person is separated from the standby state without the user existing before the television when only the voice is detected, reducing the standby power consumption of the television with far-field voice function, reducing the energy consumption when the television is not used for a long time and not influencing the normal use.
Drawings
FIG. 1 is a flow chart of a preferred embodiment of the method for reducing standby power consumption of a television according to the present invention;
FIG. 2 is a flowchart of step S10 in the preferred embodiment of the method for reducing the standby power consumption of the TV set according to the present invention;
FIG. 3 is a flowchart of step S20 in the preferred embodiment of the method for reducing the standby power consumption of the TV set according to the present invention;
FIG. 4 is a flow chart illustrating the whole operation process of the method for reducing the standby power consumption of the television according to the preferred embodiment of the present invention;
fig. 5 is a schematic structural diagram of a television set according to a preferred embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, the method for reducing the standby power consumption of a television according to the preferred embodiment of the present invention includes the following steps:
step S10, after the television enters the standby state, whether sound is input is detected, and if yes, temperature data in a preset range is obtained.
Please refer to fig. 2, which is a flowchart of step S10 in the method for reducing the standby power consumption of the television according to the present invention.
As shown in fig. 2, the step S10 includes:
s11, after the television enters a standby state, detecting whether a user inputs voice through an array microphone;
and S12, if sound input is detected, acquiring the audio data and storing the audio data in a cache, and acquiring temperature data within a preset range through an infrared temperature sensor.
Specifically, the television in the present invention represents an intelligent television, and the television has a far-field speech function, so that it is possible to perform speech recognition for performing relevant control, and after the television enters a standby state, it is detected whether there is a user's voice input through an array microphone, where the array microphone is composed of a certain number of acoustic sensors (generally microphones) and is a system for sampling and processing spatial characteristics of a sound field; according to the size of the speaking voice of the person, the voice input below 40 dB can be judged as false triggering, namely, no voice input, because the voice needing to be detected in the invention is the voice made by the person.
If the voice input of a person is detected, the audio data is collected and stored in a cache (namely, voice information sent by a user is stored firstly), and temperature data in a preset range (namely, a range around the television, such as a range of 0-5 meters) is collected through an infrared temperature sensor (a heat sensor utilizes the radiation heat effect, so that the temperature is increased after a detection device receives radiation energy, and the performance of one column in the sensor and the temperature is changed).
And if no sound input is detected or the input sound is not emitted by a person (for example, the sound input below 40 dB is judged as false triggering, namely no sound input is considered), controlling the television to continuously maintain the standby state without departing from the standby state, and reducing the power consumption of the television.
Further, after detecting the audio frequency (i.e. the audio data) of the user, the collected audio frequency is processed by human voice screening, enhancement and the like, for example, the voice frequency of human speaking is about 80Hz to 3.4KHz, the audio frequency above 4KHz is firstly screened out, and then the remaining signals are amplified, thereby improving the signal-to-noise ratio.
And step S20, judging whether a person exists in the preset range according to the temperature data, and if so, controlling the television to be out of the standby state.
Please refer to fig. 3, which is a flowchart of step S20 in the method for reducing the standby power consumption of the television according to the present invention.
As shown in fig. 3, the step S20 includes:
s21, judging whether a person exists in the preset range according to the temperature data acquired by the infrared temperature sensor;
and S22, if the person exists in the preset range, controlling the television to be out of the standby state.
Specifically, if sound input is detected, whether a person exists in the preset range (for example, the range of 0-5 meters) is judged according to the temperature data collected by the infrared temperature sensor, that is, whether the person exists in the surrounding environment of the television is judged. For example, if the detected temperature is 36-39 ℃, the existence of a person is considered, and if the existence of a person is in the preset range, the television is controlled to be separated from the standby state. If no person exists in the preset range, the trigger is regarded as false trigger, the television is controlled to continuously keep the standby state without being separated from the standby state, and the power consumption of the television is reduced.
The step of controlling the television to be out of the standby state specifically includes: and controlling the screen of the television not to be opened, and only enabling the CPU to start working so as to analyze the audio data.
Further, analyzing the audio data specifically includes: analyzing the audio data, determining whether the audio data has a wake-up keyword, namely comparing the audio data with the wake-up keyword stored in the storage unit to determine whether the audio data has the wake-up keyword (for example, the wake-up keyword may be "small dimension" or "small degree"), if the audio data does not have the wake-up keyword, continuing to keep a standby state, if the wake-up keyword exists, responding according to the wake-up keyword, so as to wake up the television, wherein the television enters a normal working state, and gives a response to a wake-up operation of a user, such as sending a "ding" sound, and then waiting for the user to give a next voice command.
According to the invention, the infrared temperature sensor is added in the television, when the television is in a standby state, if sound is input, whether people exist around is judged according to temperature data collected by the infrared temperature sensor, if people exist, whether a wake-up keyword exists is judged, and if not, the standby state is kept continuously, so that the power consumption in the standby state is reduced.
Further, as shown in fig. 4, the whole process of reducing the standby power consumption of the television in the present invention is as follows:
step S101, the television enters a standby state;
step S102, collecting audio data around the television through the array microphone;
step S103, judging whether voice input of a user (human) exists or not, if so, executing step S104, otherwise, returning to execute step S101;
step S104, acquiring temperature data within a preset range through the infrared temperature sensor;
step S105, judging whether the temperature of the human body is detected, namely judging whether a person exists in the preset range according to the temperature data collected by the infrared temperature sensor, if so, executing step S106, otherwise, returning to execute step S101;
step S106, controlling the television to be separated from the standby state, and analyzing the audio data;
step S107, judging whether the audio data has a wake-up keyword or not according to the analyzed audio data, if so, executing step S106, otherwise, returning to execute step S101;
step S108, the television responds according to the awakening keyword;
and step S109, ending.
Further, as shown in fig. 5, based on the above method for reducing the standby power consumption of a television, the present invention also provides a television, where the television includes:
the intelligent monitoring system comprises a power supply circuit 30, an infrared temperature acquisition unit 40, a sound acquisition unit 50, a voice processing unit 60, an intelligent analysis unit 70, a main control unit 10, a storage unit 20 and a network module 80, wherein the main control unit 10 is respectively connected with the infrared temperature acquisition unit 40, the sound acquisition unit 50, the voice processing unit 60, the intelligent analysis unit 70, the storage unit 20 and the network module 80.
Wherein the power supply circuit 30 is used for providing power supply logic of a television system; the infrared temperature acquisition unit 40 (mainly an infrared temperature sensor) is configured to acquire temperature data within a preset range of the television and transmit the temperature data to the intelligent analysis unit 70; the sound collection unit 50 (mainly an array microphone) is configured to collect audio data within a preset range of the television and send the audio data to the voice processing unit 60; the voice processing unit 60 is configured to perform voice screening and signal enhancement processing on the audio data and transmit the audio data to the intelligent analysis unit 70; the intelligent analysis unit 70 is configured to analyze the temperature data and the processed audio data, determine whether a person exists in the preset range according to a temperature characteristic of a human body, determine whether an awakening keyword exists according to the audio data, and determine whether the television changes a standby state; the main control unit 10 (mainly a CPU) is configured to control the coordination system and perform instruction operation according to the state information provided by the intelligent analysis unit 70; the storage unit 20 (mainly a storage chip eMMC, which can match an eMMC with a corresponding capacity according to the actual situation of each system) is used for storing the wake-up keyword; the network module 80 (e.g., wireless WiFi, wired network, etc.) is configured to connect to the cloud 200, and perform semantic parsing on the voice command in the television on state; the television also comprises a TV module which is used for completing the functions of the prior television technology, such as the receiving and decoding of an analog television and a DTMB digital television; decoding signals such as HDMI and USB.
Fig. 5 shows only some of the components of the television set, but it is to be understood that not all of the shown components are required to be implemented, and that more or fewer components may be implemented instead.
The storage unit 20 may in some embodiments be an internal storage unit of the television, such as a hard disk or a memory of the television. In other embodiments, the storage unit 20 may also be an external storage device of the television, such as a plug-in hard disk provided on the television, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like. Further, the storage unit 20 may also include both an internal storage unit and an external storage device of the television. The storage unit 20 is used for storing application software installed in the television and various data, such as program codes of the installed television. The storage unit 20 may also be used to temporarily store data that has been output or is to be output. In an embodiment, the storage unit 20 stores a program for reducing the television standby power consumption, and the program for reducing the television standby power consumption can be executed by the main control unit 10, so as to implement the method for reducing the television standby power consumption in the present application.
In some embodiments, the main control unit 10 may be a Central Processing Unit (CPU), a micro-control unit or other data processing chip, and is configured to run program codes stored in the storage unit 20 or process data, for example, execute the method for reducing the standby power consumption of the television.
Further, in an embodiment, when the main control unit 10 executes the program for reducing the standby power consumption of the television in the storage unit 20, the following steps are implemented:
after the television enters a standby state, detecting whether sound is input, and if so, acquiring temperature data within a preset range;
and judging whether a person exists in the preset range according to the temperature data, and if so, controlling the television to be out of the standby state.
After the television enters the standby state, whether sound is input is detected, and if so, temperature data in a preset range is acquired, and the method specifically comprises the following steps:
after the television enters a standby state, detecting whether a user inputs voice through an array microphone;
and if sound input is detected, acquiring the audio data, storing the audio data in a cache, and acquiring temperature data within a preset range through an infrared temperature sensor.
The judging whether a person exists in the preset range according to the temperature data, and if so, controlling the television to be separated from the standby state specifically comprises the following steps:
judging whether a person exists in the preset range according to the temperature data acquired by the infrared temperature sensor;
and if the person exists in the preset range, controlling the television to be separated from the standby state.
The judging whether a person exists in the preset range according to the temperature data, and if so, controlling the television to be out of the standby state, and then further comprising:
and analyzing the audio data, judging whether the audio data has a wake-up keyword, if so, responding according to the wake-up keyword, and waiting for the input of a voice instruction of a user.
The detecting whether there is voice input of the user by the array microphone further comprises:
and if no sound input is detected, controlling the television to continuously keep the standby state.
The temperature data according to the infrared temperature sensor gathers judges whether someone exists in the preset range, and then still includes:
if no person exists in the preset range, the television is considered to be triggered by mistake, and the television is controlled to keep the standby state continuously.
The specific steps of controlling the television to be separated from the standby state are as follows: and controlling the screen of the television not to be opened, and only enabling the CPU to start working.
Wherein the preset range is 0-5 m.
The invention also provides a storage medium, wherein the storage medium stores a program for reducing the television standby power consumption, and the program for reducing the television standby power consumption realizes the steps of the method for reducing the television standby power consumption when being executed by the main control unit.
In summary, the present invention provides a method, a television and a storage medium for reducing standby power consumption of a television, where the method includes: after the television enters a standby state, detecting whether sound is input, and if so, acquiring temperature data within a preset range; and judging whether a person exists in the preset range according to the temperature data, and if so, controlling the television to be out of the standby state. The invention judges whether a person really exists by collecting the temperature data around the television through the infrared temperature sensor on the basis of detecting the voice instruction sent by the user, and determines whether the person wants to use the television through the voice and the human body temperature, thereby avoiding the occurrence of the situation that the person is separated from the standby state without the user existing before the television when only the voice is detected, reducing the standby power consumption of the television with far-field voice function, reducing the energy consumption when the television is not used for a long time and not influencing the normal use.
Of course, it can be understood by those skilled in the art that all or part of the processes in the methods of the above embodiments can be implemented by instructing relevant hardware (such as a main control unit, a controller, etc.) through a computer program, where the program can be stored in a computer-readable storage medium, and the program can include the processes of the above method embodiments when executed. The storage medium may be a storage unit, a magnetic disk, an optical disk, etc.
It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.
Claims (10)
1. A method for reducing standby power consumption of a television is characterized in that the method for reducing standby power consumption of the television comprises the following steps:
after the television enters a standby state, detecting whether sound is input, and if so, acquiring temperature data within a preset range;
and judging whether a person exists in the preset range according to the temperature data, and if so, controlling the television to be out of the standby state.
2. The method according to claim 1, wherein after entering the standby state, the television detects whether there is a sound input, and if so, obtains temperature data within a preset range, specifically comprising:
after the television enters a standby state, detecting whether a user inputs voice through an array microphone;
and if sound input is detected, acquiring the audio data, storing the audio data in a cache, and acquiring temperature data within a preset range through an infrared temperature sensor.
3. The method according to claim 2, wherein the determining whether a person exists in the preset range according to the temperature data, and if so, controlling the television to leave the standby state specifically includes:
judging whether a person exists in the preset range according to the temperature data acquired by the infrared temperature sensor;
and if the person exists in the preset range, controlling the television to be separated from the standby state.
4. The method according to claim 2, wherein the determining whether there is a person in the preset range according to the temperature data, and if yes, controlling the television to leave the standby state, further comprising:
and analyzing the audio data, judging whether the audio data has a wake-up keyword, if so, responding according to the wake-up keyword, and waiting for the input of a voice instruction of a user.
5. The method for reducing standby power consumption of a television according to claim 2, wherein the detecting whether there is voice input from the user by the array microphone further comprises:
and if no sound input is detected, controlling the television to continuously keep the standby state.
6. The method for reducing standby power consumption of a television according to claim 3, wherein the step of determining whether a person exists in the preset range according to the temperature data collected by the infrared temperature sensor further comprises the steps of:
if no person exists in the preset range, the television is considered to be triggered by mistake, and the television is controlled to keep the standby state continuously.
7. The method according to claim 1 or 3, wherein the controlling the television to leave the standby state specifically comprises: and controlling the screen of the television not to be opened, and only enabling the CPU to start working.
8. The method for reducing standby power consumption of a television according to claim 1, wherein the preset range is 0-5 m.
9. A television set, characterized in that the television set comprises: the intelligent temperature monitoring system comprises a power supply circuit, an infrared temperature acquisition unit, a sound acquisition unit, a voice processing unit, an intelligent analysis unit, a main control unit, a storage unit and a network module;
the power supply circuit is used for providing power supply logic of the television system;
the infrared temperature acquisition unit is used for acquiring temperature data within a preset range of the television and transmitting the temperature data to the intelligent analysis unit;
the sound acquisition unit is used for acquiring audio data in a preset range of the television and sending the audio data to the voice processing unit;
the voice processing unit is used for carrying out voice screening and signal enhancement processing on the audio data and then transmitting the audio data to the intelligent analysis unit;
the intelligent analysis unit is used for analyzing the temperature data and the processed audio data, judging whether a person exists in the preset range according to the temperature characteristics of the human body, judging whether a wake-up keyword exists according to the audio data, and determining whether the television changes the standby state;
the main control unit is used for controlling the coordination system and carrying out instruction operation according to the state information given by the intelligent analysis unit;
the storage unit is used for storing the awakening key words;
the network module is used for connecting a cloud end and performing semantic analysis on a voice instruction in a television starting state;
the television set further comprises: a program for reducing television standby power consumption stored on the storage unit and executable on the main control unit, the program for reducing television standby power consumption when executed by the main control unit implementing the steps of the method for reducing television standby power consumption according to any one of claims 1-8.
10. A storage medium storing a program for reducing television standby power consumption, wherein the program for reducing television standby power consumption is executed by a main control unit to implement the steps of the method for reducing television standby power consumption according to any one of claims 1 to 8.
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| CN201911170482.4A CN110933345B (en) | 2019-11-26 | 2019-11-26 | Method for reducing television standby power consumption, television and storage medium |
| PCT/CN2019/128926 WO2021103252A1 (en) | 2019-11-26 | 2019-12-27 | Method for reducing standby power consumption of television, television, and storage medium |
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| CN113038214A (en) * | 2021-03-03 | 2021-06-25 | 深圳创维－Rgb电子有限公司 | Standby control method, terminal device and readable storage medium |
| CN113674738A (en) * | 2020-05-14 | 2021-11-19 | 青岛鼎信通讯股份有限公司 | Whole-house distributed voice system and method |
| CN113938738A (en) * | 2020-06-29 | 2022-01-14 | 阿里巴巴集团控股有限公司 | Control method and system for display device, playing device and storage medium |
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| CN110933345B (en) | 2021-11-02 |
| WO2021103252A1 (en) | 2021-06-03 |
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