CN114666664A - Smart television based on millimeter wave radar and startup control method thereof - Google Patents
Smart television based on millimeter wave radar and startup control method thereof Download PDFInfo
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- CN114666664A CN114666664A CN202210275732.6A CN202210275732A CN114666664A CN 114666664 A CN114666664 A CN 114666664A CN 202210275732 A CN202210275732 A CN 202210275732A CN 114666664 A CN114666664 A CN 114666664A
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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
- H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
- H04N21/4432—Powering on the client, e.g. bootstrap loading using setup parameters being stored locally or received from the server
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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
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
- H04N21/42201—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS] biosensors, e.g. heat sensor for presence detection, EEG sensors or any limb activity sensors worn by the user
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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
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
- H04N21/42204—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor
- H04N21/42206—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor characterized by hardware details
- H04N21/42221—Transmission circuitry, e.g. infrared [IR] or radio frequency [RF]
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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
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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
- H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
- H04N21/4436—Power management, e.g. shutting down unused components of the receiver
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- General Health & Medical Sciences (AREA)
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- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
The invention discloses a smart television based on a millimeter wave radar and a starting control method thereof, wherein the smart television comprises a television shell, a millimeter wave radar module, an infrared remote control module, a television backlight module, a power supply and a main control panel; the millimeter wave radar module is used for detecting a human body in front of the intelligent television when the intelligent television is in a standby mode, and judging whether the detected human body has the intention of watching the television or not according to a detection result; if yes, feeding back to the main control board, and if not, keeping the detection state; the main control board is used for starting the main system, keeping the television backlight module in a closed state and monitoring the infrared remote control module when receiving the feedback of the millimeter wave radar module; the main control board is also used for starting the television backlight module when receiving the signal of the infrared remote control module within the preset time. The invention can more accurately identify whether the user has the requirement of watching the television.
Description
Technical Field
The invention relates to the field of televisions, in particular to a smart television based on a millimeter wave radar and a starting control method thereof.
Background
At present, with the development of technology, the application content of the smart television is more and more abundant, so that better use experience is brought to the human body. However, the startup time of the smart television is long, and in order to cover the problem of long startup time, the smart television has startup animation or startup advertisement when being started, which also affects the viewing experience of human body.
To improve such problems, the solutions adopted at present mainly include infrared sensing detection and false standby.
The principle of infrared sensing detection is that a human body is sensed by infrared rays, and when the human body is sensed to be close to a television, the television is started, so that the time for waiting for starting the television is shortened. The infrared sensing detection has the defect that when a user just passes through a television area and does not have the idea of watching the television, the user can still mistakenly trigger the television to be turned on. Especially in the living room, which is a home area where people often walk, the frequency of television false activation is greatly increased.
The false standby is to make the television in a false standby state or a working state, only to turn off the backlight display of the screen when the television is not watched, and not to turn off the chip, when the television is needed to be watched, only to press the set-down key, the television directly turns on the screen backlight to display the television user interface. The defect of the false standby is that the standby power consumption of the television is increased, the method of realizing the fast startup by sacrificing the power consumption of the whole machine does not meet the expectation of most users, and the service life of the television is shortened when the chip is kept in the working state for a long time.
Disclosure of Invention
In view of the foregoing problems, an embodiment of the present invention provides a smart television based on a millimeter wave radar and a power-on control method thereof, so as to improve the foregoing problems.
The embodiment of the invention provides a smart television based on a millimeter wave radar, which comprises a television shell, and a millimeter wave radar module, an infrared remote control module, a television backlight module, a power supply and a main control board which are arranged in the television shell, wherein the millimeter wave radar module, the infrared remote control module, the television backlight module and the power supply are all electrically connected with the main control board; wherein:
the millimeter wave radar module is used for detecting a human body in front of the intelligent television when the intelligent television is in a standby mode, and judging whether the detected human body has the intention of watching the television or not according to a detection result; if yes, feeding back to the main control board, and if not, keeping the detection state;
the main control board is used for starting the main system, keeping the television backlight module in a closed state and monitoring the infrared remote control module when receiving the feedback of the millimeter wave radar module;
the main control board is also used for starting the television backlight module when receiving the signal of the infrared remote control module in the preset time.
Preferably, the millimeter wave radar module is arranged at the front end of the television shell facing the user.
Preferably, the main control board is further configured to turn off the main system to re-enter the standby mode when a signal of the infrared remote control module is not received within a predetermined time.
Preferably, the millimeter wave radar module is specifically configured to:
sending high-frequency electromagnetic wave signals to the front of the intelligent television, and receiving reflected emission signals;
judging whether a human body exists in front or not according to the transmitting signal;
when the human body is judged to exist, continuously tracking and calculating the distance and the direction of the human body to acquire the posture of the human body;
calculating the motion trail of the human body according to the change of the posture;
and judging whether the human body has the intention of watching the television or not according to the motion track.
Preferably, when it is determined that the human body moves from another position to the sofa and sits down according to the change of the motion trajectory, it is determined that the human body has an intention to watch television.
The embodiment of the invention also provides a startup control method of the smart television based on the millimeter wave radar, which comprises the following steps:
when the intelligent television is in a standby mode, the millimeter wave radar module detects a human body in front of the intelligent television and judges whether the detected human body has the intention of watching the television or not according to a detection result; if yes, feeding back to the main control board, and if not, keeping the detection state;
when receiving the feedback of the millimeter wave radar module, the main control board starts the main system, keeps the television backlight module in a closed state and monitors the infrared remote control module;
and when the main control board receives the signal of the infrared remote control module within preset time, the television backlight module is started.
Preferably, the millimeter wave radar module is arranged at the front end of the television shell facing the user.
Preferably, the method further comprises the following steps:
and when the main control board does not receive the signal of the infrared remote control module within preset time, closing the main system to re-enter the standby mode.
Preferably, when the smart television is in the standby mode, the millimeter wave radar module performs human body detection on the front side of the smart television, and judges whether the detected human body has an intention of watching the television according to a detection result, specifically including:
in a standby mode, sending high-frequency electromagnetic wave signals to the front of the intelligent television and receiving reflected emission signals;
judging whether a human body exists in front or not according to the transmitting signal;
when the human body is judged to exist, continuously tracking and calculating the distance and the direction of the human body to acquire the posture of the human body;
calculating the motion trail of the human body according to the change of the posture;
and judging whether the human body has the television watching intention or not according to the motion track.
Preferably, when it is determined that the human body moves from another position to the sofa and sits down according to the change of the motion trajectory, it is determined that the human body has an intention to watch television.
In summary, in this embodiment, the millimeter wave radar module is used for recognizing the motion trajectory, so that whether the user needs to watch the television or not can be recognized more accurately, the millimeter wave radar module is only used for starting the television host system after recognizing the motion trajectory of the human body, the backlight of the screen is not started, and the backlight power supply is started after the start key of the remote controller is pressed, so that the false triggering when the user only sits on the sofa but does not want to watch the television can be avoided, and the watching experience of the user is improved.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings required to be used in the embodiments will be briefly described below, and obviously, the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic block diagram of a smart television based on millimeter wave radar according to a first embodiment of the present invention.
Fig. 2 is a working scene diagram of a smart television based on millimeter wave radar according to a first embodiment of the present invention.
Fig. 3 is a flowchart illustrating a startup method of a smart television based on millimeter wave radar according to a second 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 and 2, a first embodiment of the present invention provides a smart television based on millimeter wave radar, which includes a television housing 60, and a millimeter wave radar module 10, an infrared remote control module 20, a television backlight module 30, a power supply 40 and a main control board 50 that are disposed in the television housing 60, wherein the millimeter wave radar module 10, the infrared remote control module 20, the television backlight module 30 and the power supply 40 are all electrically connected to the main control board 50; wherein:
the millimeter wave radar module 10 is used for detecting a human body in front of the smart television when the smart television is in a standby mode, and judging whether the detected human body has the intention of watching the television or not according to a detection result; if yes, feeding back to the main control board, and if not, keeping the detection state.
In this embodiment, the millimeter wave radar module 10 is disposed at the front end of the television housing 60, so as to ensure that the emitted millimeter waves can cover the front of the smart television. In particular, the millimeter wave radar module 10 is disposed at a position intermediate below the front end of the television housing 60. Of course, in practical application, the specific position of the smart television can be set according to the actual requirement of the smart television, and the invention is not particularly limited.
In this embodiment, the millimeter wave radar module 10 has functions of distance measurement, speed measurement, and direction measurement.
Specifically, the method comprises the following steps:
the millimeter wave ranging principle is to emit millimeter waves (high-frequency electromagnetic waves) with directivity, receive the millimeter waves reflected by the obstacle targets, and calculate the relative distance between the millimeter wave radar module 10 and the obstacle targets by combining the time of the millimeter waves flying on the way.
The millimeter wave velocity measurement principle is based on the doppler effect, and the reception frequency of a wave becomes high when the source of the wave is close to the observer and becomes low when the source of the wave is far from the observer. The millimeter wave radar module 10 can obtain the relative movement speed between the detected obstacle target and the module according to the change of the reflected millimeter wave frequency.
The millimeter wave azimuth measuring principle is that millimeter waves are transmitted out and reflected back after encountering an obstacle target, the millimeter waves are received through parallel antennas, and the azimuth angle of the obstacle target can be calculated according to the phase difference of the received millimeter waves reflected back by the same obstacle target.
In the present embodiment, the motion trajectory of a target such as a human body can be calculated based on the detection capability of the millimeter wave radar module 10 in combination with a specific algorithm. For example, when the current human body is located in front of the left side of the smart television and the human body is detected to be located right in front of the television after 1 second, the algorithm can roughly calculate the motion track of the human body to move from the front of the left side of the television to the right in front according to the changes of the distance and the direction, and the identification precision of the motion track can be improved by shortening the time interval of millimeter wave detection.
In this embodiment, the millimeter wave radar module 10 may also calculate the posture of the human body. For example, when a human body stands in front of the smart television, the millimeter wave radar module 10 can detect the beams reflected from the head, and also can detect the beams reflected from various parts of the body, and the orientation and distance of each reflected beam are integrated to calculate the posture of the human body. When a human body sits on a sofa in front of the television, the millimeter wave radar module 10 can detect that the millimeter waves reflected back from the human body have different azimuth angles and distances. The millimeter wave radar module 10 continuously detects, calculates and compares, and can calculate the posture change of the human body.
In this embodiment, according to the posture change of the human body, the millimeter wave radar module 10 may determine whether the human body has an intention to watch the television, for example, when it is detected that the human body moves from the left front of the television to the right front and sits on a sofa, it may be determined that the human body has an intention to watch the television, and at this time, the millimeter wave radar module 10 sends a feedback to the main control board 50.
The main control board 50 is configured to start the main system, keep the television backlight module 30 in the off state, and monitor the infrared remote control module 20 when receiving the feedback of the millimeter wave radar module 10.
The main control board 50 is further configured to start the television backlight module 30 when receiving the signal of the infrared remote control module within a predetermined time.
In this embodiment, after the main control board 50 receives the feedback from the millimeter wave radar module 10, it first starts the main system, but does not start the tv backlight module 30. Therefore, the fast startup can be ensured when the user needs to start up, but the user cannot perceive the fast startup because the television backlight module 30 is not started, and even if the user does not intend to watch the television, the user cannot think that the smart television is started up by mistake to cause bad user experience.
In this embodiment, after the main system is started, the main control board 50 monitors the infrared remote control module 20, and if a user sends an infrared remote control signal through a remote controller within a predetermined time, it indicates that the user needs to watch a television, at this time, the main control board 50 supplies power to the power supply of the television backlight module 30 to start the television backlight module 30, so as to realize normal television watching.
In this embodiment, if the main control board 50 does not receive the infrared remote control signal within the predetermined time, it indicates that the user does not intend to watch the television, and at this time, the main control board 50 turns off the main system to re-enter the standby mode.
In summary, in this embodiment, the millimeter wave radar module 10 is used for identifying the motion trajectory, so that whether the user needs to watch the television or not can be identified more accurately, the millimeter wave radar module 10 only starts the television host system after identifying the motion trajectory of the human body, the backlight of the screen is not turned on, and the backlight power supply is turned on after the start key of the remote controller is pressed, so that the false triggering when the user only sits on the sofa but does not want to watch the television can be avoided, and the watching experience of the user is improved.
Referring to fig. 3, a second embodiment of the present invention further provides a startup control method for a smart television based on a millimeter wave radar, including:
s201, when the smart television is in a standby mode, the millimeter wave radar module detects a human body in front of the smart television and judges whether the detected human body has the intention of watching the television or not according to a detection result; if yes, feeding back to the main control board, and if not, keeping the detection state;
s202, when the main control board receives the feedback of the millimeter wave radar module, starting the main system, keeping the television backlight module in a closed state, and monitoring the infrared remote control module;
and S203, when the main control board receives the signal of the infrared remote control module in preset time, starting the television backlight module.
Preferably, the millimeter wave radar module is arranged at the front end of the television shell facing the user.
Preferably, the method further comprises the following steps:
and when the main control board does not receive the signal of the infrared remote control module within the preset time, closing the main system to re-enter the standby mode.
Preferably, when the smart television is in the standby mode, the millimeter wave radar module performs human body detection on the front side of the smart television, and judges whether the detected human body has an intention of watching the television according to a detection result, specifically including:
in a standby mode, sending a high-frequency electromagnetic wave signal to the front of the smart television, and receiving a reflected emission signal;
judging whether a human body exists in front or not according to the transmitting signal;
when the human body is judged to exist, continuously tracking and calculating the distance and the direction of the human body to acquire the posture of the human body;
calculating the motion trail of the human body according to the change of the posture;
and judging whether the human body has the television watching intention or not according to the motion track.
Preferably, when it is determined that the human body moves from another position to the sofa and sits down according to the change of the motion trajectory, it is determined that the human body has an intention to watch television.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method can be implemented in other ways. The apparatus and method embodiments described above are merely illustrative and, for example, the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, the functional modules in the embodiments of the present invention may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, an electronic device, or a network device) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes. It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An intelligent television based on a millimeter wave radar is characterized by comprising a television shell, and a millimeter wave radar module, an infrared remote control module, a television backlight module, a power supply and a main control board which are arranged in the television shell, wherein the millimeter wave radar module, the infrared remote control module, the television backlight module and the power supply are electrically connected with the main control board; wherein:
the millimeter wave radar module is used for detecting a human body in front of the intelligent television when the intelligent television is in a standby mode, and judging whether the detected human body has the intention of watching the television or not according to a detection result; if yes, feeding back to the main control board, and if not, keeping the detection state;
the main control board is used for starting the main system, keeping the television backlight module in a closed state and monitoring the infrared remote control module when receiving the feedback of the millimeter wave radar module;
the main control board is also used for starting the television backlight module when receiving the signal of the infrared remote control module within the preset time.
2. The intelligent television based on millimeter wave radar as claimed in claim 1, wherein the millimeter wave radar module is arranged at the front end of the television shell facing the user.
3. The MMW radar-based smart TV of claim 1,
and the main control board is also used for closing the main system to reenter the standby mode when the main system does not receive the signal of the infrared remote control module within the preset time.
4. The intelligent television of claim 1, wherein the millimeter wave radar module is specifically configured to:
sending high-frequency electromagnetic wave signals to the front of the intelligent television, and receiving reflected emission signals;
judging whether a human body exists in front or not according to the transmitting signal;
when the human body is judged to exist, continuously tracking and calculating the distance and the direction of the human body to obtain the posture of the human body;
calculating the motion trail of the human body according to the change of the posture;
and judging whether the human body has the intention of watching the television or not according to the motion track.
5. The intelligent television based on the millimeter wave radar as claimed in claim 4, wherein the baffle judges that the human body has the intention of watching the television when judging that the human body moves from other positions to the sofa and sits down according to the change of the motion trail.
6. A startup control method of a smart television based on a millimeter wave radar is characterized by comprising the following steps:
when the smart television is in a standby mode, the millimeter wave radar module detects a human body in front of the smart television and judges whether the detected human body has the intention of watching the television or not according to a detection result; if yes, feeding back to the main control board, and if not, keeping the detection state;
when receiving the feedback of the millimeter wave radar module, the main control board starts the main system, keeps the television backlight module in a closed state and monitors the infrared remote control module;
and when the main control board receives the signal of the infrared remote control module within preset time, the television backlight module is started.
7. A power-on control method for a smart TV based on millimeter wave radar as defined in claim 6, wherein the millimeter wave radar module is disposed at the front end of the TV shell facing the user.
8. The startup control method of the intelligent television based on the millimeter wave radar as claimed in claim 6, further comprising:
and when the main control board does not receive the signal of the infrared remote control module within the preset time, closing the main system to re-enter the standby mode.
9. The millimeter wave radar-based smart television startup control method according to claim 6, wherein the millimeter wave radar module detects a human body in front of the smart television when the smart television is in a standby mode, and the determining whether the detected human body has an intention to watch the television according to the detection result specifically comprises:
in a standby mode, sending a high-frequency electromagnetic wave signal to the front of the smart television, and receiving a reflected emission signal;
judging whether a human body exists in front or not according to the transmitting signal;
when the human body is judged to exist, continuously tracking and calculating the distance and the direction of the human body to acquire the posture of the human body;
calculating the motion trail of the human body according to the change of the posture;
and judging whether the human body has the television watching intention or not according to the motion track.
10. The smart television startup control method based on millimeter wave radar according to claim 9, wherein when the baffle judges that the human body moves from another position to a sofa and sits down according to the change of the motion trajectory, it judges that the human body has the intention of watching television.
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2022
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