CN114071102A - Control method and device of display equipment, computer readable medium and display system - Google Patents

Control method and device of display equipment, computer readable medium and display system Download PDF

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Publication number
CN114071102A
CN114071102A CN202111334960.8A CN202111334960A CN114071102A CN 114071102 A CN114071102 A CN 114071102A CN 202111334960 A CN202111334960 A CN 202111334960A CN 114071102 A CN114071102 A CN 114071102A
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China
Prior art keywords
area
viewer
display
light source
detection area
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CN202111334960.8A
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Chinese (zh)
Inventor
赵一石
陈许
吴超
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Qingdao Hisense Laser Display Co Ltd
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Qingdao Hisense Laser Display Co Ltd
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Priority to CN202111334960.8A priority Critical patent/CN114071102A/en
Publication of CN114071102A publication Critical patent/CN114071102A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141—Constructional details thereof
    • H04N9/315—Modulator illumination systems
    • H04N9/3155—Modulator illumination systems for controlling the light source
    • 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
    • H04N21/4104—Peripherals receiving signals from specially adapted client devices
    • H04N21/4122—Peripherals receiving signals from specially adapted client devices additional display device, e.g. video projector
    • 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
    • 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
    • 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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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Social Psychology (AREA)
  • General Engineering & Computer Science (AREA)
  • Software Systems (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Databases & Information Systems (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

The application belongs to the technical field of projection display, and particularly relates to a control method and device of display equipment, a computer readable medium and a display system. The method comprises the following steps: starting a target function of the display equipment; acquiring track change conditions of a detection area and a target area; when a viewer is positioned in the detection area, a video image signal is generated through the main control panel and is transmitted to the display panel so as to drive the light source assembly; when the observer moves from the detection area to the target area, the light beam is generated by the light source assembly, the light beam is modulated by the display panel, and the modulated image is displayed. Therefore, when a viewer enters the detection area and does not enter the target area, the main control panel and the display panel are started in advance, and the light source assembly is quickly lightened and displayed after the viewer enters the target area, so that the time for the viewer to wait for the equipment to be started is shortened, the power consumption is reduced to a certain extent, and the starting time of the display equipment is shortened.

Description

Control method and device of display equipment, computer readable medium and display system
Technical Field
The application belongs to the technical field of projection display, and particularly relates to a control method and device of display equipment, a computer readable medium and a display system.
Background
With the development of science and technology and the improvement of the living standard of people, display equipment such as laser televisions, projection equipment and other various equipment are more and more widely applied due to the advantages of larger projection image size and better display effect.
The display device takes a projection device as an example, the projection device comprises a main control panel and a power supply, when the existing projection device is in standby, if the standby mode is to turn off only the light source, the mode can quickly turn on the light source and display, but the power consumption is too large; if the main control panel and the light source are turned off simultaneously during standby in order to reduce power consumption, although the power consumption consumed at this time is relatively small, the time for starting the projection device is long when the projection device is awakened, and therefore, both the main control panel and the light source cannot be considered simultaneously.
It is to be noted that the information disclosed in the above background section is only for enhancement of understanding of the background of the present application and therefore may include information that does not constitute prior art known to a person of ordinary skill in the art.
Disclosure of Invention
The application aims to provide a control method and device of a display device, a computer readable medium and a display system, which can realize that the display device is awakened and displayed quickly while the power consumption is reduced to a certain extent.
Other features and advantages of the present application will be apparent from the following detailed description, or may be learned by practice of the application.
According to an aspect of an embodiment of the present application, there is provided a control method of a display apparatus including:
a light source assembly for providing a light source;
the main control panel is used for decoding the video image signals and transmitting the decoded video image signals to the display panel;
a display panel for driving the light source module and for performing light modulation on a video image signal;
the method comprises the following steps:
starting a target function of the display equipment, wherein the target function is used for controlling the display equipment to operate in a preset operation mode;
acquiring a track change condition of a preset area, wherein the preset area comprises a detection area and a target area, and the target area is located in the detection area;
when a viewer is positioned in the detection area, generating a video image signal through the main control panel and transmitting the video image signal to the display panel so as to drive the light source assembly;
when a viewer moves from the detection area to the target area, a light beam is generated by the light source assembly, the light beam is modulated by the display panel, and the modulated image is displayed.
According to an aspect of embodiments of the present application, there is provided a control apparatus for a display device, the display device including a light source assembly for providing a light source, a main control board for decoding a video image signal and transmitting the decoded video image signal to a display panel for driving the light source assembly and for optically modulating the video image signal, the control apparatus including:
the starting module is used for starting a target function of the display equipment, and the target function is used for controlling the display equipment to operate in a preset operation mode;
the system comprises an acquisition module, a detection module and a processing module, wherein the acquisition module is used for acquiring the track change condition of a preset area, the preset area comprises a detection area and a target area, and the target area is positioned in the detection area;
the first control module is used for generating video image signals through the main control panel and transmitting the video image signals to the display panel to drive the light source assembly when a viewer is positioned in the detection area;
and the second control module is used for generating light beams through the light source assembly when a viewer moves from the detection area to the target area, modulating the light beams through the display panel and displaying the modulated images.
In some embodiments of the application, based on the above technical solution, the obtaining module is further configured to monitor a movement track of the viewer, and obtain a track change condition of the preset area by determining whether the movement track of the viewer falls within a range of the preset area; or, monitoring whether a viewer exists in the preset area to obtain the track change condition of the preset area.
In some embodiments of the present application, based on the above technical solutions, the control device further includes a third control module, configured to turn off the light source assembly and stop displaying when the viewer moves from the target area to the detection area; and when the viewer is outside the detection area, closing the main control panel and the display panel.
In some embodiments of the application, based on the above technical solution, the control apparatus further includes a setting module, configured to determine, as the detection area, a sector area with the display device as a center, a radius range as a first interval range, and an angle range as a first preset range; and determining a fan-shaped area with the display equipment as the center, the radius range as a second interval range and the angle range as a second preset range as the target area, wherein the first interval range is larger than the second interval range, and the first preset range is larger than the second preset range.
In some embodiments of the present application, based on the above technical solutions, the obtaining module is further configured to monitor a movement track of the viewer through the first sensor; and when the action track of the viewer falls into the range of the detection area, starting a second sensor, and monitoring the action track of the viewer through the second sensor, wherein the first sensor is different from the second sensor.
In some embodiments of the present application, based on the above technical solution, the first control module is further configured to obtain start times of the main control board and the display board; and determining the range of the detection area according to the main control panel and the starting time of the display panel.
In some embodiments of the present application, based on the above technical solution, the first control module is further configured to, if a color wheel is included in the light source module, turn on the color wheel to synchronize with the video signal output by the main control board, and the color wheel is configured to output three primary color lights synchronized with the video signal.
According to an aspect of an embodiment of the present application, there is provided a display system including:
the power supply module is used for providing power supply;
the detection module is used for acquiring the track change condition of a preset area, wherein the preset area comprises a detection area and a target area, and the target area is positioned in the detection area;
and the control module is used for executing the control method of the display equipment.
According to an aspect of an embodiment of the present application, there is provided a computer-readable medium on which a computer program is stored, the computer program, when executed by a processor, implementing a control method of a display device as in the above technical solutions.
According to an aspect of embodiments herein, there is provided a computer program product or computer program comprising computer instructions stored in a computer readable storage medium. The processor of the computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device executes the control method of the display device as in the above technical solution.
In the technical scheme provided by the embodiment of the application, under the condition that the standby mode of the display device is that the main control system and the light source are turned off together, when a viewer enters the detection area and does not enter the target area, the main control panel and the display panel are started in advance, and the light source assembly is quickly lighted and displayed after the viewer enters the target area, so that the time for the viewer to wait for the turning-on of the device is reduced, the power consumption is reduced to a certain extent, and the starting time of the display device is shortened.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 schematically shows a block diagram of an exemplary display system architecture to which the present technical solution is applied.
Fig. 2 schematically shows a flow of steps of a control method for providing a display device according to an embodiment of the present application.
Fig. 3 schematically shows a flow of steps of a control method for providing a display device according to another embodiment of the present application.
Fig. 4 schematically shows a flow of steps for determining the detection area in an embodiment of the present application.
Fig. 5 schematically shows a detection area and a target area of the present application.
Fig. 6 schematically shows a flow of steps for monitoring the action track of the viewer in an embodiment of the present application.
Fig. 7 schematically shows a block diagram of a control device of a display apparatus according to an embodiment of the present application.
FIG. 8 schematically illustrates a block diagram of a computer system suitable for use in implementing an electronic device of an embodiment of the present application.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the application. One skilled in the relevant art will recognize, however, that the subject matter of the present application can be practiced without one or more of the specific details, or with other methods, components, devices, steps, and so forth. In other instances, well-known methods, devices, implementations, or operations have not been shown or described in detail to avoid obscuring aspects of the application.
The block diagrams shown in the figures are functional entities only and do not necessarily correspond to physically separate entities. I.e. these functional entities may be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor means and/or microcontroller means.
The flow charts shown in the drawings are merely illustrative and do not necessarily include all of the contents and operations/steps, nor do they necessarily have to be performed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the actual execution sequence may be changed according to the actual situation.
The display device takes a projection device as an example, and an existing projection device has an operating system, and generally takes a long time, generally reaching about 3 seconds, when a display video, such as a promo, a display picture, a dynamic mural, etc., is played, the following standby situations exist:
in the first case, the projection device is always in the power-on playing state, and although this ensures the display of the video, the projection device is always in the power-on state when no viewer watches the video. This results in high power consumption and a significant reduction in optical engine life.
In the second case, when there is no viewer watching the image, only the light source is turned off, and the main control panel and the display panel of the projection apparatus are always in a normal operation state. When the projection equipment needs to be turned on, the display can be carried out only by quickly turning on the light source. Compared with the mode under the first condition, the mode realizes low power consumption to a certain extent by turning off the light source, but because the main control chip or the display chip is in a normal working state, the general power consumption is about 10-30W, and the power consumption under the mode is still high.
In addition, it should be noted that, if the optical engine of the projection device generates the primary color light from the color wheel, the color wheel and the video signal must be synchronized before the projection device displays the picture, so as to ensure normal display, generally, along with the increase of the optical power of the projection device, the size of the color wheel increases, the synchronization time will be greatly enhanced, even reaching 7S, if the projection device needs to be awakened quickly, the color wheel must be ensured to operate all the time, which may generate noise, power consumption and reduce the life of the color wheel.
In summary, the standby display of the existing projection device is divided into two types, the first standby mode is to turn off only the light source, and this type of standby mode can quickly turn on and display the light source, but the main control system needs to be operated all the time, so that the power consumption is high, which is about 30W; the second standby mode is that the main control system and the light source are turned off together, which can ensure that the standby power consumption is low, but when the system is started again, the main control system needs to be restarted and initialized, and the light source can be lightened after the system is started again, so that the system is started slowly for at least more than 3 seconds. Especially for projection display devices with color wheels, the start-up time is longer and even up to 7S, since the color wheel needs to be synchronized with the video signal, which results in a poor user experience.
In order to solve the technical problem, the application provides a control method and device of a display device, a computer readable medium and a display system, under the condition that a standby mode of the display device is that a main control system and a light source are turned off together, when a viewer enters a detection area and does not enter a target area, a main control panel and a display panel are started in advance, and the light source is quickly lightened and displayed after the viewer enters the target area, so that the power consumption is reduced to a certain extent, and meanwhile, the starting time of the display device is shortened.
Fig. 1 schematically shows a block diagram of an exemplary display system architecture to which the present technical solution is applied.
As shown in fig. 1, the display system 100 mainly includes a power module 101, a detection module 102, and a control module 103, where the power module 101 is configured to provide power, the detection module 102 is configured to obtain a track change condition of a preset area, the preset area includes a detection area and a target area, the target area is located in the detection area, and the control module is configured to execute a control method of the following display device.
Specifically, the control module 103 includes a main control board 1031, a display board 1032 and a light source assembly 1033, wherein the light source assembly 1033 further includes a light source, a light valve and a lens. The power module 101 is configured to supply power to the main control board 1031, the display board 1032 and the light sources; the main control board 1031 is configured to run an operating system, decode video signals, and transmit the decoded video signals to a display panel; the display panel 1032 is used for driving a light source in the light source module and for performing optical modulation on the video image signal, where the so-called optical modulation specifically is to drive a light valve to modulate a light beam provided by the light source according to the video image signal; the detecting module 102 is configured to obtain a track change condition of a preset area, and output a trigger signal to the main control board 1031 and the display board 1032. For the light source module section, a light source for outputting tricolor light synchronized with the video signal; the light valve is used for modulating the light output by the light source according to the video signal and converting the electric signal into an optical signal; the lens is used for projecting and displaying the modulated optical signal to form an image. Therefore, through the cooperation among the modules, the starting time of the display device is shortened while the power consumption is reduced to a certain extent.
The following describes a control method of a display device provided in the present application in detail with reference to specific embodiments.
Referring to fig. 2, fig. 2 schematically illustrates a flow of steps of a control method for providing a display device according to an embodiment of the present application. The display device comprises a light source assembly, a main control panel and a display panel, wherein the light source assembly is used for providing a light source, the main control panel is used for operating an operating system and decoding a video signal and transmitting the decoded video signal to the display panel, and the display panel is used for driving the light source assembly and carrying out light modulation on the video image signal, wherein the so-called light modulation is specifically that a light valve is driven to modulate a light beam provided by the light source assembly according to the video image signal. The control method of the display apparatus may mainly include steps S201 to S204 as follows.
Step S201, a target function of the display device is started, where the target function is used to control the display device to operate in a preset operation mode.
Firstly, starting a target function of the display device, and controlling the display device to operate in a corresponding preset operation mode. The target function, for example, takes a low power consumption wake-up function as an example, and controls the display device to operate in a low power consumption mode. The low power consumption mode refers to that the power consumption consumed by the display device during operation is low, and specifically, the setting of the low power consumption mode may be set by a person skilled in the art according to actual needs, which is not limited herein. Of course, the setting of the target function may be set to other functions, which are not limited herein, and the following description will be given by taking the target function as the low power consumption wake-up function as an example.
The display device has a low power consumption wake-up function, and when the low function wake-up function of the display device is turned on, the display device operates in a low power consumption mode. The setting of the low-power wake-up function can be set to be on or off by a user, and when the function is in an off state, the device cannot be wakened up and displayed even if people approach the device; when the function is in the on state, if someone approaches, the device will be woken up and displayed. In addition, the setting of the display content of the display device may be preset, for example, pre-stored content, network media content, cable channel content, or the like.
Step S202, obtaining the track change condition of a preset area, wherein the preset area comprises a detection area and a target area, and the target area is located in the detection area.
After the low-power wake-up function is started, the change condition of a preset area needs to be acquired, and the change condition of the preset area is used for determining which part of functional modules of the display device is started, so that the display device can be quickly started and displayed under the condition of low power consumption. The change condition of the preset area refers to judging whether a viewer is in the preset area, and if the viewer enters the preset area, whether the viewer enters the detection area or the target area needs to be further determined. Therefore, different structure modules are started through the change condition in the preset area, and the display equipment can be quickly started and displayed under the condition of low power consumption. In addition, for the setting of the preset area, the position of the preset area and the size of the range of the area can be further determined according to the installation position of the display device. Those skilled in the art can set the setting according to actual needs, and the setting is not limited specifically here.
In step S203, when the viewer is located in the detection area, a video image signal is generated by the main control board and transmitted to the display panel for driving the light source assembly.
When the viewer falls into the detection area, the main control panel and the display panel are turned on, the main control panel generates video image signals, and the video image signals are transmitted to the display panel to drive the light source assembly. The operating system starts to operate by turning on the main control panel, and the display panel is turned on for driving the light source assembly. When a viewer enters the detection area, the detection module triggers the main control panel to start firstly, in addition, the display panel is also triggered to start, it needs to be explained that the trigger source of the display panel can be the detection module or the main panel module, and the two triggering modes have no influence on the whole function.
Step S204, when the observer moves from the detection area to the target area, the light beam is generated by the light source assembly, the light beam is modulated by the display panel, and the modulated image is displayed.
When the viewer moves to the target area from a detection area with a longer distance, the light source assembly is started, light beams are generated through the light source assembly and are modulated through the display panel, and therefore the modulated images are displayed, and the time for the viewer to wait for the equipment to be started is shortened. When the viewer enters the target area from the detection area, the detection module can trigger the main control panel and the display panel again to display a playing command, the display panel can open the light source assembly at the moment, and the main control panel can normally play the content, so that the instant display and playing after the viewer approaches are realized. During the period, if the viewer is continuously in the target area, the detection module always triggers the system to display and play.
In the technical scheme provided by the embodiment of the application, under the condition that the standby mode of the display device is that the main control system and the light source assembly are closed together, when a viewer enters a detection area and does not enter a target area, the main control panel and the display panel are started in advance, and the light source assembly is quickly lighted and displayed after the viewer enters the target area, so that the time for the viewer to wait for the equipment to be started is shortened, the power consumption is reduced to a certain extent, and meanwhile, the starting time of the display device is shortened.
In an embodiment of the present application, obtaining the track change condition of the preset area mainly includes the following steps. Specifically, the action track of the viewer is monitored, and the track change condition of the preset area is obtained through whether the action track of the viewer falls into the range of the preset area or not; or whether a viewer exists in the preset area is monitored to obtain the track change condition of the preset area.
The change situation of the preset area can be mainly obtained through the two modes, the first mode is to monitor the action track of the viewer, for example, the action track of the viewer can be monitored through a mode of installing a sensor, whether the action track of the viewer falls into the range of the preset area or not is judged, if the action track of the viewer falls into the range of the detection area, the detection area is considered to have the viewer, so that the main control panel and the display panel need to be started in advance, and if the action track of the viewer falls into the range of the target area, the light source assembly is started and displayed, so that the time for the viewer to wait for starting the equipment is reduced.
The second mode is to monitor the scope of the preset area, for example, the monitoring module can monitor the scope, take the mode of the camera as an example, namely, monitor the change situation in the preset area scope through the camera, if there is a viewer in the detection area of the preset area, then start the main control panel and the display panel in advance, if there is a viewer in the target area, then start the light source assembly to display.
Therefore, by acquiring the track change condition of the preset area, whether a viewer exists in the preset area can be determined, and whether the corresponding functional module needs to be opened in advance is further determined, so that the time for the user to open the display device is reduced, and the viewer has good user experience.
In one embodiment of the present application, referring to fig. 3, fig. 3 schematically illustrates a flow of steps of a control method for providing a display device according to another embodiment of the present application. The method may mainly include steps S301 to S302 as follows.
In step S301, when the viewer moves from the target area to the detection area, the light source module is turned off and the display is stopped.
When the viewer moves from the target area to the detection area, the detection module stops triggering the display playing command, the display panel closes the light source at the moment, and the main control panel pauses playing content to reduce the power consumption of the light source part
Step S302, when the viewer is outside the detection area, the main control panel and the display panel are closed.
When a viewer leaves a detection area, the detection module stops triggering a system starting command, the main control panel and the display panel can enter a deep standby mode, at the moment, only the detection module, the starting key, the remote control key and the corresponding starting circuit are powered on, all the other circuits are powered off, and the system is in an ultra-low power consumption state. And then turned on again when a subsequent viewer approaches.
Therefore, when the viewer moves from the target area to the detection area, the light source assembly is turned off and stops displaying, and when the viewer is out of the detection area, the main control panel and the display panel are turned off, so that the power consumption of the display device under the standby condition is greatly reduced.
When the viewer does not enter the detection area, the display device is in a deep standby state; when a viewer enters the detection area but does not enter the target area, the display equipment starts the main control panel and the display panel, and ensures that the main control panel and the display panel are started before the viewer enters the target area, and at the moment, the light source assembly is kept closed and no display picture is displayed; once the viewer enters the target area, the light source assembly can be instantly started and the picture can be displayed because the main control panel and the display panel are started; when the viewer leaves the target area, the display panel closes the light source assembly; and when the viewer leaves the detection area, the display equipment closes the main control and display system and enters a deep standby state.
In one embodiment of the present application, referring to fig. 4, fig. 4 schematically shows a flow of steps for determining a detection area in an embodiment of the present application. Before the main control panel and the display panel are turned on, the following steps S401 to S402 may be mainly included.
Step S401, acquiring the starting time of the main control panel and the display panel;
step S402, determining the range of the detection area according to the main control panel and the starting time of the display panel.
For the setting of the detection area, the detection area is determined by the starting time of the main control panel and the display panel of the projection device, and the target area is determined by the optimal viewing range of the display device, so that the display device is conveniently and accurately controlled.
In one embodiment of the present application, referring to fig. 5, fig. 5 schematically shows a schematic diagram of a detection region and a target region of the present application. The detection range of the viewer is divided into two parts: respectively a peripheral detection region 501 and an inner target region 502. Wherein, when the viewer is in the target area 502, the display device displays normally; when the viewer is in the detection area 501, the display device is only normally activated, but not displayed.
For the specific settings of the detection area 501 and the target area 502, the method further includes:
determining a sector area which takes the display device as a center, has a radius range as a first interval range and an angle range as a first preset range as a detection area;
and determining a fan-shaped area which takes the display equipment as a center, has a radius range of a second interval range and an angle range of a second preset range as a target area, wherein the first interval range is larger than the second interval range, and the first preset range is larger than the second preset range.
For the specific setting of the detection area and the target area, the display device is exemplified by a projection device, for example, the optimal viewing distance of one projection device is 2.5m, the viewing angle is 70 °, the start time of the main control panel and the display panel is 3S, the walking speed of a normal person is 1.5m/S, then a certain margin is added to the target area on the basis of the optimal viewing distance, which can be defined as 3m, when the viewing angle of a viewer exceeds the viewing angle more, the brightness and chromaticity of the display picture seen by human eyes will be sharply attenuated, which results in that the display picture cannot be seen clearly, so the angle definition can be 120 °, the obtained target area is a sector with a radius of 3m and 120 °, the detection area can be set to 5m in combination with the start time of 3S, which ensures that a sufficient start time is available before the person walks into the target area, in order to ensure that each angle can be monitored, the angle is set to 180 ° which is larger than the angle of the target area, so that the entire detection area is a sector area with a radius of 8m and 180 °.
For setting a first interval range and a first preset range, the first interval range may be, for example, 4m to 6m, and the first preset range may be, for example, a sector area of 0- [150 ° -210 ° ] is determined as the detection area; the second interval range may be, for example, 1m to 3.5m, and the second preset range may be, for example, 0- [100 ° -140 ° ] in a sector area determined as the target area.
For setting the radius range and the angle range of the detection area and the target area, a person skilled in the art can define the detection area and the target area according to actual needs to divide the detection area and the target area to obtain a proper area range, so that the display device can be conveniently controlled to be turned on and displayed.
Therefore, the normal starting and display of the display equipment can be accurately controlled by setting the detection area and the target area within a certain range.
In one embodiment of the present application, referring to fig. 6, fig. 6 schematically shows a flow of steps for monitoring a behavior trace of a viewer in an embodiment of the present application. The monitoring of the action trajectory of the viewer mainly includes steps S601 to S602 as follows.
Step S601, monitoring the action track of the viewer through a first sensor;
step S602, when the action track of the viewer falls within the range of the detection area, a second sensor is activated, and the action track of the viewer is monitored by the second sensor, wherein the first sensor is different from the second sensor.
According to the scheme, detection of different areas is achieved through matching of various types of sensors, detection of different areas is achieved by combining characteristics of different types of sensors, for example, the action track of a viewer is monitored by using a first sensor, and when the action track of the viewer falls into the range of the detection area, the action track of the viewer is monitored by using a second sensor. The specific definitions for the first sensor and the second sensor are as follows:
the first sensor is a thermocouple sensor for determining whether a viewer enters the detection zone. Because the distance of a viewer does not need to be accurately detected in the detection area, the viewer can only be ensured to have enough time to start the system after entering, and the thermocouple has the characteristic of being capable of identifying the movement of a heat source at a long distance and outputting a signal, so that the sensitivity, the detection range and the low power consumption of the thermocouple just meet the detection requirements. In addition, it should be noted that the sensitivity of the thermocouple sensor can be improved by increasing the gain of the operational amplifier circuit part, so as to improve the detection range, the detection angle can be increased by using a proper Fresnel lens, the sensor and the operational amplifier have only uA-level leakage current without input, and the power consumption is low.
The second sensor is a millimeter wave radar for detecting whether the viewer enters the target area. When the first sensor detects that the viewer enters the detection area, the second sensor is started while the main control panel and the display panel are started, so that ultra-low power consumption during deep standby is achieved, the action track of the viewer is continuously detected after the second sensor is started, and once the viewer enters the progress target area, the light source is quickly started to display videos.
In this way, detection of different regions is performed by using different sensors, so that power consumption is reduced while satisfying detection accuracy.
In an embodiment of the present application, the method for turning on the main control panel and the display panel further includes:
if the light source component has a color wheel, the color wheel is started to rotate so as to be synchronous with the video signal output by the main control panel, and the color wheel is used for outputting three primary color lights synchronous with the video signal.
If there is the colour wheel in the light source subassembly, then the colour wheel is opened rotatoryly this moment also to accomplish synchronous with the video signal of mainboard output in advance, later main control board and display panel start-up are accomplished, wait for to open light source subassembly direct display after triggering on next step, like this, are convenient for show video color display, improve user experience.
It should be noted that although the various steps of the methods in this application are depicted in the drawings in a particular order, this does not require or imply that these steps must be performed in this particular order, or that all of the shown steps must be performed, to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step execution, and/or one step broken down into multiple step executions, etc.
Embodiments of an apparatus of the present application are described below, which may be used to perform the control method of the display device in the above-described embodiments of the present application. Fig. 7 schematically shows a block diagram of a control device of a display apparatus according to an embodiment of the present application. As shown in fig. 7, the display device includes a light source assembly for providing a light source, a main control panel for decoding a video image signal and transmitting the decoded video image signal to a display panel for driving the light source assembly and for performing light modulation on the video image signal, and a display panel, the control apparatus 700 includes:
the starting module 701 is used for starting a target function of the display device, wherein the target function is used for controlling the display device to operate in a preset operation mode;
an obtaining module 702, configured to obtain a track change condition of a preset area, where the preset area includes a detection area and a target area, and the target area is located in the detection area;
a first control module 703, configured to generate a video image signal through the main control panel when a viewer is located in the detection area, and transmit the video image signal to the display panel for driving the light source assembly;
and a second control module 704 for generating a light beam by the light source module, modulating the light beam by the display panel, and displaying the modulated image.
In some embodiments of the application, based on the above technical solution, the obtaining module is further configured to monitor the action track of the viewer, and obtain a track change condition of the preset area according to whether the action track of the viewer falls within a range of the preset area; or, whether a viewer exists in the preset area is monitored to obtain the track change condition of the preset area.
In some embodiments of the present application, based on the above technical solution, the control device further includes a third control module, configured to turn off the light source module and stop displaying when the viewer moves from the target area to the detection area; when the viewer is outside the detection area, the main control panel and the display panel are turned off.
In some embodiments of the application, based on the above technical solution, the control apparatus further includes a setting module, configured to determine, as the detection area, a sector area with the display device as a center, the radius range as a first interval range, and the angle range as a first preset range; and determining a fan-shaped area which takes the display equipment as a center, has a radius range of a second interval range and an angle range of a second preset range as a target area, wherein the first interval range is larger than the second interval range, and the first preset range is larger than the second preset range.
In some embodiments of the present application, based on the above technical solution, the obtaining module is further configured to monitor a movement track of the viewer through the first sensor; and when the action track of the viewer falls into the range of the detection area, starting a second sensor, and monitoring the action track of the viewer through the second sensor, wherein the first sensor is different from the second sensor.
In some embodiments of the present application, based on the above technical solutions, the first control module is further configured to obtain start times of the main control board and the display board; and determining the range of the detection area according to the main control panel and the starting time of the display panel.
In some embodiments of the present application, based on the above technical solution, the first control module is further configured to, if a color wheel in the light source module is turned on, rotate the color wheel so as to be synchronized with the video signal output by the main control board, and the color wheel is configured to output three primary color lights synchronized with the video signal.
The specific details of the control device of the display device provided in the embodiments of the present application have been described in detail in the corresponding method embodiments, and are not described herein again.
Fig. 8 schematically shows a block diagram of a computer system of an electronic device for implementing an embodiment of the present application.
It should be noted that the computer system 800 of the electronic device shown in fig. 8 is only an example, and should not bring any limitation to the functions and the scope of use of the embodiments of the present application.
As shown in fig. 8, the computer system 800 includes a Central Processing Unit (CPU) 801 that can perform various appropriate actions and processes according to a program stored in a Read-Only Memory (ROM) 802 or a program loaded from a storage section 808 into a Random Access Memory (RAM) 803. In the random access memory 803, various programs and data necessary for system operation are also stored. The cpu 801, the rom 802 and the ram 803 are connected to each other via a bus 804. An Input/Output interface 805(Input/Output interface, i.e., I/O interface) is also connected to the bus 804.
The following components are connected to the input/output interface 805: an input portion 806 including a keyboard, a mouse, and the like; an output section 807 including a Cathode Ray Tube (CRT), a Liquid Crystal Display (LCD), and a speaker; a storage portion 808 including a hard disk and the like; and a communication section 809 including a network interface card such as a local area network card, modem, and the like. The communication section 809 performs communication processing via a network such as the internet. A drive 810 is also connected to the input/output interface 805 as necessary. A removable medium 811 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like is mounted on the drive 810 as necessary, so that a computer program read out therefrom is mounted on the storage section 808 as necessary.
In particular, according to embodiments of the present application, the processes described in the various method flowcharts may be implemented as computer software programs. For example, embodiments of the present application include a computer program product comprising a computer program embodied on a computer readable medium, the computer program comprising program code for performing the method illustrated by the flow chart. In such an embodiment, the computer program can be downloaded and installed from a network through the communication section 809 and/or installed from the removable medium 811. When executed by the central processor 801, the computer program performs various functions defined in the system of the present application.
It should be noted that the computer readable medium shown in the embodiments of the present application may be a computer readable signal medium or a computer readable storage medium or any combination of the two. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples of the computer readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a Read-Only Memory (ROM), an Erasable Programmable Read-Only Memory (EPROM), a flash Memory, an optical fiber, a portable Compact Disc Read-Only Memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the present application, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In this application, however, a computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wired, etc., or any suitable combination of the foregoing.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present application. 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 or flowchart illustration, and combinations of blocks in the block diagrams or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
It should be noted that although in the above detailed description several modules or units of the device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functionality of two or more modules or units described above may be embodied in one module or unit, according to embodiments of the application. Conversely, the features and functions of one module or unit described above may be further divided into embodiments by a plurality of modules or units.
Through the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein may be implemented by software, or by software in combination with necessary hardware. Therefore, the technical solution according to the embodiments of the present application can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a usb disk, a removable hard disk, etc.) or on a network, and includes several instructions to enable a computing device (which can be a personal computer, a server, a touch terminal, or a network device, etc.) to execute the method according to the embodiments of the present application.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains.
It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims (10)

1. A control method of a display device, characterized in that the display device comprises:
a light source assembly for providing a light source;
the main control panel is used for decoding the video image signals and transmitting the decoded video image signals to the display panel;
a display panel for driving the light source module and for performing light modulation on a video image signal;
the method comprises the following steps:
starting a target function of the display equipment, wherein the target function is used for controlling the display equipment to operate in a preset operation mode;
acquiring a track change condition of a preset area, wherein the preset area comprises a detection area and a target area, and the target area is located in the detection area;
when a viewer is positioned in the detection area, generating a video image signal through the main control panel and transmitting the video image signal to the display panel so as to drive the light source assembly;
when a viewer moves from the detection area to the target area, a light beam is generated by the light source assembly, the light beam is modulated by the display panel, and the modulated image is displayed.
2. The method for controlling the display device according to claim 1, wherein the obtaining of the track change condition of the preset area comprises:
monitoring the action track of the viewer, and obtaining the track change condition of the preset area according to whether the action track of the viewer falls into the range of the preset area; or
And monitoring whether a viewer exists in the preset area or not to obtain the track change condition of the preset area.
3. The method of controlling a display device according to claim 1 or 2, characterized in that the method further comprises:
when the viewer moves from the target area to the detection area, turning off the light source assembly and stopping displaying;
and when the viewer is outside the detection area, closing the main control panel and the display panel.
4. The method of controlling a display device according to claim 1 or 2, characterized in that the method further comprises:
determining a sector area with the display device as the center, a radius range as a first interval range and an angle range as a first preset range as the detection area;
and determining a fan-shaped area with the display equipment as the center, the radius range as a second interval range and the angle range as a second preset range as the target area, wherein the first interval range is larger than the second interval range, and the first preset range is larger than the second preset range.
5. The method for controlling a display device according to claim 2, wherein the monitoring of the trajectory of the viewer comprises:
monitoring, by a first sensor, a trajectory of action of the viewer;
and when the action track of the viewer falls into the range of the detection area, starting a second sensor, and monitoring the action track of the viewer through the second sensor, wherein the first sensor is different from the second sensor.
6. The method for controlling a display device according to claim 1 or 2, further comprising, before the turning on the main control panel and the display panel:
acquiring starting time of the main control panel and the display panel;
and determining the range of the detection area according to the main control panel and the starting time of the display panel.
7. The method of claim 1, wherein the turning on the main control panel and the display panel further comprises:
and if the color wheel is arranged in the light source component, the color wheel is started to rotate so as to be synchronous with the video signal output by the main control board, and the color wheel is used for outputting three primary color lights synchronous with the video signal.
8. A control apparatus of a display device, the display device including a light source assembly for providing a light source, a main control board for decoding a video image signal and transmitting the decoded video image signal to a display panel for driving the light source assembly and for optically modulating the video image signal, and the control apparatus comprising:
the starting module is used for starting a target function of the display equipment, and the target function is used for controlling the display equipment to operate in a preset operation mode;
the system comprises an acquisition module, a detection module and a processing module, wherein the acquisition module is used for acquiring the track change condition of a preset area, the preset area comprises a detection area and a target area, and the target area is positioned in the detection area;
the first control module is used for generating video image signals through the main control panel and transmitting the video image signals to the display panel to drive the light source assembly when a viewer is positioned in the detection area;
and the second control module is used for generating light beams through the light source assembly when a viewer moves from the detection area to the target area, modulating the light beams through the display panel and displaying the modulated images.
9. A display system, characterized in that the display system comprises:
the power supply module is used for providing power supply;
the detection module is used for acquiring the track change condition of a preset area, wherein the preset area comprises a detection area and a target area, and the target area is positioned in the detection area;
a control module for performing the method of controlling a display device according to any one of claims 1 to 7.
10. A computer-readable medium, characterized in that a computer program is stored thereon, which computer program, when being executed by a processor, realizes the control method of the display device according to any one of claims 1 to 7.
CN202111334960.8A 2021-11-11 2021-11-11 Control method and device of display equipment, computer readable medium and display system Pending CN114071102A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024082885A1 (en) * 2022-10-17 2024-04-25 青岛海信激光显示股份有限公司 Projection system and control method therefor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024082885A1 (en) * 2022-10-17 2024-04-25 青岛海信激光显示股份有限公司 Projection system and control method therefor

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