TWI506415B - Method for auto power off of smart display - Google Patents

Description

Automatic shutdown method for smart display

The present invention relates to a smart display, and more particularly to an automatic shutdown method for a smart display.

Existing smart displays are equipped with intelligent systems, such as Android (Android) systems. The smart display can receive video output from an external device such as a computer, and can also receive video output from an internal intelligent system. When the smart display video source is switched to the intelligent system video, the smart display displays the video of the intelligent system video, and the user can operate the intelligent system through the display screen and the input device, and if the user does not operate for a period of time, the intelligent system will Enter the energy-saving working mode or perform the shutdown by the automatic shutdown function to save energy and save power. When the smart display video source is switched from the intelligent system video to the external video, the smart display changes from displaying the video of the intelligent system to displaying the external video, so that the user can no longer operate the intelligent system, and because the intelligent system and the smart display are Modules that handle external video are working independently, so intelligent systems are typically designed to shut down or continue to work in the background. However, when the smart display video source is switched from the intelligent system video to the external video, if the intelligent system is turned off, the work that the user wants to temporarily retain may be turned off, and if the intelligent system continues to work in the background, the power saving cannot be saved. effect.

The object of the present invention is to provide an automatic shutdown method for a smart display. When the video source of the smart display is switched from the intelligent system video to the external video, the intelligent system can be turned off after the user presets a period of time, and the intelligent system can be The work is temporarily reserved for a period of time, and it can also achieve energy saving and power saving effects.

To achieve the above objective, the present invention provides an automatic shutdown method for a smart display, wherein the smart display includes a microcontroller (MCU) and an intelligent system. The automatic shutdown method of the smart display includes: when the DC power of the smart display is turned on, the intelligent system sends the current automatic shutdown function setting state to the MCU storage; when the smart display video source switches from the intelligent system video to the external video, the MCU judges that the current automatic shutdown Whether the function has been activated; when the MCU determines that the current automatic shutdown function has been activated, the MCU starts the timer according to the time set by the current automatic shutdown function; and, when the MCU counts the set time, the MCU cuts off the power supply of the intelligent system.

In an embodiment of the present invention, the automatic shutdown method of the smart display further includes: when the MCU starts timing and has not counted to the set time, if the smart display video source switches from the external video to the intelligent system video, the MCU stops timing and emphasizes Reset the counter.

In an embodiment of the invention, the automatic shutdown method of the smart display further includes: when the smart display video source is switched to the intelligent system video, the intelligent system provides an automatic shutdown function setting interface for the user to perform the automatic shutdown function setting, and the setting is performed. The subsequent auto power off function setting status is sent to the MCU for storage.

In an embodiment of the invention, the automatic shutdown method of the smart display further includes: when the smart display video source is switched to the intelligent system video, if the intelligent system enters the energy-saving working mode, the intelligent system starts the counter according to the time set by the current automatic shutdown function. Start timing; and, when the intelligent system counts to the set time, the intelligent system sends a command to the MCU, so that the MCU cuts off the power supply of the intelligent system.

In an embodiment of the invention, the smart display is a smart TV or a smart computer display.

In an embodiment of the invention, the intelligent system includes an Android system.

In an embodiment of the invention, the external video includes video using a Video Graphics Array (VGA) standard, video using a Digital Visual Interface (DVI), or a high-definition multimedia interface (High-Definition). Multimedia Interface, HDMI) video. The energy-saving working mode includes a standby working mode, a sleep working mode, or a hibernate working mode.

The technical means described in one embodiment above can be applied to the other embodiment described above to obtain a new embodiment as long as the technical means are not contradictory.

With the above technical means, after the automatic shutdown function setting is completed, when the smart display video source is switched from the intelligent system video to the external video, the power supply of the intelligent system can be cut off after the time set by the user is preset. If the video source is switched back to the intelligent system video from the external video before the time has elapsed, the video will be re-timed until the set time has elapsed before the power supply of the intelligent system is cut off, so that the video source can be switched from the intelligent system. When the external video is accessed, the work in the intelligent system is temporarily reserved for a preset time by the user, and the energy saving effect can be achieved.

The above and other objects, features and advantages of the present invention will become more <RTIgt;

1‧‧‧Main control board

11‧‧‧MCU
12‧‧‧Video Scaler
13‧‧‧Video input interface
2‧‧‧ display panel
3‧‧‧System Board
31‧‧‧ Processor
32‧‧‧Intelligent systems
S1‧‧‧DC power on
S2‧‧‧Intelligent system sends the current auto power off function setting status to MCU storage
S3‧‧‧Switch to external video
S4‧‧‧MCU does not do the action related to the automatic shutdown function
S5‧‧‧Automatic shutdown function has been activated
The S6‧‧‧MCU is timed according to the time set by the auto power off function
S7‧‧‧ Is it timed to set the time?
S8‧‧‧MCU sends internal commands to cut off power to the intelligent system
S9‧‧‧Switch to smart system video
S10‧‧‧MCU stops timing and clears the timing to zero
S11‧‧‧ Whether to set the automatic shutdown function
S12‧‧‧MCU does not do the action related to the automatic shutdown function
S13‧‧‧Intelligent system sends the set auto power off function setting status to MCU storage
S14‧‧‧ Whether to enter the energy-saving work mode
S15‧‧‧Intelligent system does not do the action related to the automatic shutdown function
S16‧‧‧Intelligent system counts according to the time set by the auto power off function
S17‧‧‧ Is it timed to set the time?
S18‧‧‧Intelligent system sends internal commands to the MCU to enable the MCU to cut off the power supply of the intelligent system

1 is a circuit block diagram of a smart display according to an embodiment of the invention;

2 is a flow chart of an automatic shutdown method of a smart display according to an embodiment of the invention; and

FIG. 3 is a flow chart of an automatic shutdown method of a smart display according to another embodiment of the invention.

In order to clearly illustrate the features of the present invention, some of the conventional elements are omitted in the drawings. In addition, the same or similar symbols represent the same or similar elements or steps in the various embodiments.

FIG. 1 is a circuit block diagram of a smart display according to an embodiment of the invention. Referring to FIG. 1 , the smart display of this embodiment may be a smart TV, a smart computer display or other types of smart displays, including a main control board 1 , a display panel 2 , and a system board 3 . The main control board 1 includes an MCU 11 , a video scaler 12 and a video input interface 13 . The MCU 11 is electrically connected to the video scaler 12 , and the video scaler 12 is electrically connected to the video input interface 13 and the display panel 2 . The video input interface 13 is configured to receive external video and output and process the external video after demodulation, decoding, etc., wherein the external video may be a VGA standard video or a DVI video output by an external device such as a computer, or may be Digital HDMI video output from a Digital Versatile Disc (DVD) player, or other types of video. The video scaler 12 is configured to perform size scaling on the video data processed by the video input interface 13 according to the screen resolution set by the user, and then output the image to the display panel 2 for display. The MCU 11 is used to coordinate and control the display of the smart display.

The system board 3 includes a processor 31. The processor 31 is electrically connected to the MCU 11 and the video scaler 12. The processor 31 is equipped with an intelligent system 32. The intelligent system 32 includes an operating system and various applications installed on the operating system. The operating system may be an Android operating system. In this case, the intelligent system may be referred to as an Android system, or may be a Windows operating system or other types of operating systems, and the application may be an instant messaging (IM) software, a face. Book (Facebook) client software or other types of applications. The intelligent system 32 and the MCU 11 can send internal commands to communicate with each other, and the video output by the intelligent system 32 (hereinafter referred to as intelligent system video) is transmitted to the video scaler 12. In addition, the MCU 11 and the video scaler 12 are usually integrated in one chip, and the main control board 1 and the system board 3 can also be combined into one circuit board.

2 is a flow chart of an automatic shutdown method of a smart display according to an embodiment of the invention. Taking the smart display shown in FIG. 1 as an example, please refer to FIG. 1 and FIG. 2 at the same time. In step S1, the DC power of the smart display is turned on, and the smart display enters the normal working mode. In step S2, the intelligent system 32 sends an internal command to the MCU 11 to request the automatic shutdown function setting state of the current intelligent system 32. After the MCU 11 confirms, it starts to receive the current automatic shutdown function setting state and stores it in the global variable. In step S3, when the smart display video source is switched to the smart system video, the smart display will display the screen of the smart system video, and the user can view the information displayed on the screen, and can also pass through, for example, the touch panel disposed on the display panel 2. The intelligent system 32 is operated; at this time, the MCU 11 determines whether there is a command input for requesting the smart display video source to switch from the intelligent system video to the external video. The command may be provided by the user through, for example, a remote controller or a smart display housing. The OSD command input by the button panel operation (On-Screen Display, OSD) menu may also be an internal command generated by the user through the video source switching function provided by the touch panel operation intelligent system 32.

When the MCU 11 determines in step S3 that the command input of the smart display video source to switch from the intelligent system video to the external video is not required, the step S4 is executed, and the smart display continues to display the screen of the intelligent system video for the user to view the information and/or operate the smart. System 32, at this time, MCU 11 may perform actions such as brightness adjustment, cursor movement, cursor click, etc. according to OSD commands or internal commands, but does not perform actions related to intelligent system 32 automatic shutdown function. When the MCU 11 determines in step S3 that there is a command input requesting the smart display video source to switch from the intelligent system video to the external video, the step S5 is executed, and the MCU 11 controls the video scaler 12 to change from processing the intelligent system video to processing the external video. The display panel 2 is changed from the screen displaying the intelligent system video to the screen displaying the external video; at this time, the MCU 11 determines whether the automatic shutdown function of the smart system 32 has been activated according to the current automatic shutdown function setting state stored in the global variable. .

When the MCU 11 determines in step S5 that the automatic shutdown function of the smart system 32 is not activated, the process returns to step S4, and the MCU 11 does not of course perform the action of the automatic shutdown function of the intelligent system 32 because the automatic shutdown function is not activated. When the MCU 11 determines in step S5 that the automatic shutdown function of the smart system 32 has been activated, step S6 is executed, and the MCU 11 starts the timer start timing according to the time (for example, 10 minutes) set in the current automatic shutdown function setting state stored in the global variable. Then, in step S7, the MCU 11 determines whether it is timed to the set time. When the MCU 11 judges in step S7 that the set time has not been counted, the process returns to step S6, and the counter continues to count. When the MCU 11 judges in step S7 that the set time has elapsed, step S8 is executed, and the MCU 11 transmits an internal command to cut off the power supply of the processor 31, that is, cut off the power supply of the smart system 32.

In addition, when the MCU 11 starts timing in step S6, and it is determined in step S7 that the set time has not been counted, the MCU 11 further performs step S9 to determine whether there is a request for the smart display video source to switch from the external video to the smart system video. Command input. When the MCU 11 determines in step S9 that the command input of the smart display video source to switch from the external video to the smart system video is not required, the process returns to step S7, and the counter continues to count. When the MCU 11 determines in step S9 that there is a command input requesting the smart display video source to switch from the external video to the smart system video, the step S10 is executed, and the MCU 11 controls the video scaler 12 to change from processing the external video to processing the intelligent system video. The display panel 2 is changed from a screen displaying external video to a screen displaying intelligent system video; at this time, the MCU 11 also controls the counter to stop timing and reset the counter, that is, the timing is cleared to zero.

With the technical means shown in FIG. 2, after the automatic shutdown function setting is completed, when the smart display video source is switched from the intelligent system video to the external video, the MCU 11 can cut off the smart after the time set by the user to the preset time. The power supply of the system 32, and before the time is set to the set time, if the video source switches back to the intelligent system video from the external video, the MCU 11 re-clocks until the set time is turned off before the power supply of the intelligent system 32 is turned off. In this way, when the video source switches from the intelligent system video to the external video, the work in the intelligent system 32 is temporarily reserved for a preset time by the user, and the energy saving effect can be achieved.

FIG. 3 is a flow chart of an automatic shutdown method of a smart display according to another embodiment of the invention. Taking the smart display shown in FIG. 1 as an example, please refer to FIG. 1 and FIG. 3 at the same time. In step S1, the DC power of the smart display is turned on, and the smart display enters the normal working mode. In step S2, the intelligent system 32 sends an internal command to the MCU 11 to request the automatic shutdown function setting state of the current intelligent system 32. After the MCU 11 confirms, it starts to receive the current automatic shutdown function setting state and stores it in the global variable. In step S11, when the smart display video source is switched to the smart system video, the smart display will display the screen of the smart system video, and the user can view the information displayed on the screen, and can also pass through, for example, the touch panel disposed on the display panel 2. To operate the intelligent system 32; at this time, the intelligent system 32 determines whether there is a command input requesting the automatic shutdown function setting, and the command may be input by the user through the video source switching function provided by the touch panel operation intelligent system 32, for example. command.

When the smart system 32 determines in step S11 that the command input for the automatic shutdown function setting is not required, step S12 is executed, and the smart display continues to display the screen of the intelligent system video for the user to view the information and/or operate the intelligent system 32. 11 may perform actions such as brightness adjustment, cursor movement, cursor click, etc. according to an OSD command or an internal command, but does not perform an action regarding the automatic shutdown function of the smart system 32, and then proceeds to step S14. When the smart system 32 determines in step S11 that there is a command input requesting the automatic shutdown function setting, step S13 is performed, and the intelligent system 32 provides an automatic shutdown function setting interface for the user to perform the automatic shutdown function setting of the intelligent system 32, and After the auto power off function is set, the internal command is sent to the MCU 11 to request the transfer of the set auto power off function setting state. After the MCU 11 confirms, it starts to receive the set auto power off function setting state and overwrites the original setting state.

In step S14, when the smart display displays the screen of the intelligent system video, the intelligent system 32 determines whether the user can enter the energy-saving working mode without operating for a period of time, wherein the energy-saving working mode can be the standby working mode, the sleep working mode, and the sleep mode. Work mode or other type of energy-saving work mode. In the standby mode of operation, the processor 31 stops working or is turned off; in the sleep mode, all state data is stored in the memory (Suspend to RAM), all components are powered off except for the memory; in the sleep mode of operation All status data is saved to the Suspend to Disk. When the intelligent system 32 determines in step S14 that the energy saving operation mode is not yet enterable, step S15 is executed, and the intelligent system 32 does not perform an action related to the automatic shutdown function. When the intelligent system 32 determines in step S14 that the energy-saving working mode can be entered, step S16 is executed, and the intelligent system 32 starts the counting of the counter according to the time (for example, 10 minutes) set in the current automatic shutdown function setting state stored in the global variable, and then starts the counting. In step S17, the intelligent system 32 determines whether or not the set time has elapsed. When the intelligent system 32 determines in step S17 that the set time has not been counted, the process returns to step S16, and the counter continues to count. When the intelligent system 32 determines in step S17 that the set time has elapsed, step S18 is executed, and the intelligent system 32 sends an internal command to the MCU 11, causing the MCU 11 to cut off the power supply of the processor 31, that is, to cut off the power supply of the intelligent system 32.

By means of the technical means shown in FIG. 3, after the automatic shutdown function setting is completed, when the smart display video source is switched to the intelligent system video, the intelligent system 32 can send an internal command to the MCU after timing the user to preset the time. 11. The MCU 11 cuts off the power supply of the intelligent system 32, thereby achieving energy saving and power saving effects. Therefore, in combination with the technical means shown in FIG. 2 and FIG. 3, after the automatic shutdown function setting is completed, the smart display can be preset to the user regardless of whether the smart display video source is switched to the smart system video or switched to the external video. After the time has elapsed, the power supply of the intelligent system 32 is cut off to achieve energy saving and power saving effects.

Although the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make some modifications and refinements without departing from the spirit and scope of the present invention. The scope of protection is subject to the definition of the scope of the attached patent application.

S1‧‧‧DC power on

S2‧‧‧Intelligent system sends the current auto power off function setting status to MCU storage

S3‧‧‧Switch to external video

S4‧‧‧MCU does not do the action related to the automatic shutdown function

S5‧‧‧Automatic shutdown function has been activated

The S6‧‧‧MCU is timed according to the time set by the auto power off function

S7‧‧‧ Is it timed to set the time?

S8‧‧‧MCU sends internal commands to cut off power to the intelligent system

S9‧‧‧Switch to smart system video

S10‧‧‧MCU stops timing and clears the timing to zero

Claims (8)

An automatic shutdown method for a smart display, the smart display includes a microcontroller and an intelligent system, and the automatic shutdown method of the smart display includes:
When the DC power of the smart display is turned on, the intelligent system sends the current automatic shutdown function setting state to the microcontroller for storage;

When the smart display video source switches from the smart system video to an external video, the microcontroller determines whether the current automatic shutdown function has been activated;

When the microcontroller determines that the current automatic shutdown function has been started, the microcontroller starts the timer according to the time set by the current automatic shutdown function; and

When the microcontroller times a set time, the microcontroller shuts off power to the intelligent system.
The automatic shutdown method of the smart display as described in claim 1, further comprising:
When the microcontroller starts timing and has not counted to the set time, if the smart display video source switches from the external video to the intelligent system video, the microcontroller stops counting and resets the counter.
The automatic shutdown method of the smart display as described in claim 1, further comprising:
When the smart display video source is switched to the smart system video, the intelligent system provides an automatic shutdown function setting interface for the user to perform an automatic shutdown function setting, and sends the set automatic shutdown function setting state to the microcontroller for storage. .
The automatic shutdown method of the smart display as described in claim 1, further comprising:
When the smart display video source switches to the smart system video, if the smart system enters an energy-saving working mode, the intelligent system starts the counting according to the time set by the current automatic shutdown function; and

When the intelligent system counts to a set time, the intelligent system sends a command to the microcontroller to cause the microcontroller to cut off power to the intelligent system.
The automatic shutdown method of the smart display according to the fourth aspect of the invention, wherein the energy-saving working mode comprises a standby working mode, a sleep working mode or a sleep working mode. The automatic shutdown method of the smart display according to claim 1, wherein the smart display is a smart TV or a smart computer display. The automatic shutdown method of the smart display according to claim 1, wherein the intelligent system comprises an Android system. The automatic shutdown method of the smart display as described in claim 1, wherein the external video comprises video using a video graphics array standard, video using a digital video interface, or video using a high definition multimedia interface.