CN103491326B - All-in-one computer television and control method of all-in-one computer television - Google Patents
All-in-one computer television and control method of all-in-one computer television Download PDFInfo
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Abstract
The invention provides an all-in-one computer television and a control method of the all-in-one computer television. The all-in-one computer television comprises a television controller and a computer module, wherein the television controller is connected to the computer module through an interface module, detects a state of the computer module according to a state signal transmitted by the interface module and sends a control signal to the computer module through the interface module according to the state of the computer module so as to control operation of the computer module. The computer module receives the control signal transmitted by the interface module and executes corresponding actions. A control mode of the all-in-one computer television is simple, and control of a television module to the computer module can be achieved through state signal detection of three control lines.
Description
Technical Field
The invention relates to the technical field of televisions, in particular to a computer-television all-in-one machine and a control method of the computer-television all-in-one machine.
Background
Display devices such as interactive touch television integrated machines, electronic whiteboards, digital signage, liquid crystal tiled displays, and the like, increasingly use computer modules, using large-sized liquid crystal screens as display devices. Previous similar products have essentially been televisions/monitors modified to be hung from a computer. The adapter is independently arranged on the computer, or the computer module is installed in the television/monitor, the computer and the television/monitor do not have a communication function, and respectively and independently work, and the computer is required to be manually turned on or turned off during use, so that the operation process is relatively complicated, and if the television/monitor is turned off and the host computer is forgotten to be turned off, the computer is in a normal working state, so that the electric energy is wasted, and potential safety hazards exist.
Even if the related technology increases the communication function between the computer and the television, the implementation is more complex, for example, the computer is mainly used, the television function module is added on the computer, and the modem module is added on the computer for communication, so that the signal needs to be modulated and demodulated, and the processing process is relatively complex.
Disclosure of Invention
In view of the above background, it is an object of the present invention to provide a computer-television integrated control technique for realizing television control of a computer, which is simple and can reduce the number of user operation steps.
In view of the above, according to one aspect of the present invention, there is provided a computer-television integrated machine, including: the television controller is connected to the computer module through an interface module, detects the state of the computer module through a state signal transmitted by the interface module, and sends a control signal to the computer module through the interface module according to the state of the computer module so as to control the operation of the computer module; and the computer module receives the control signal transmitted by the interface module and executes corresponding action.
The invention can determine the state of the computer module by detecting the state signal transmitted by the interface module, thereby controlling the computer module by the television controller, avoiding the manual interference of the user on the running state of the computer module, realizing the combined control of the television controller and the computer module, avoiding the complicated processing process of respectively and independently controlling, and having simple realization and no need of adding a modulation and demodulation module.
According to another aspect of the present invention, there is provided a computer-television integrated machine control method, including: and detecting the state of the computer module, and controlling the operation of the computer module according to the state of the computer module.
According to the invention, the state of the computer module is detected, so that the computer module is controlled by the television controller, the user does not need to manually interfere with the running state of the computer module, the combined control of the television controller and the computer module is realized, the complicated processing processes of respectively and independently controlling are avoided, the realization is simple, and the modulation and demodulation module is not needed to be added.
Drawings
FIG. 1A shows a schematic diagram of a computer-television all-in-one machine according to an embodiment of the invention;
FIG. 1B shows a schematic diagram of a computer-television all-in-one machine according to an embodiment of the invention;
FIG. 1C shows a schematic diagram of a computer-television all-in-one machine according to an embodiment of the invention;
FIG. 1D shows a schematic diagram of a computer-television kiosk, according to an embodiment of the invention;
FIG. 2 is a schematic diagram of an application of a computer-TV all-in-one machine, which takes an OPS interface as an example, according to an embodiment of the invention;
FIG. 3 shows a schematic diagram of a PC-TV combo, exemplified by an OPS interface, according to an embodiment of the invention;
FIG. 4 is a schematic diagram of control lines between a television controller and a computer module according to an embodiment of the invention;
FIG. 5 shows a flow chart of a PC-TV combo control method according to an embodiment of the invention;
FIG. 6 shows a power-on control flow diagram for a television kiosk, according to an embodiment of the invention;
FIG. 7 is a flow diagram illustrating a process for switching channels in a PC-TV combo according to an embodiment of the present invention;
fig. 8 shows a standby control flow diagram of the pc-tv combo according to an embodiment of the present invention.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments disclosed below.
Fig. 1A shows a schematic diagram of a pc-tv all-in-one machine according to an embodiment of the invention.
As shown in fig. 1A, a computer-television integrated machine includes: the television controller 102 is connected to the computer module 106 through the interface module 104, detects the state of the computer module 106 through the state signal transmitted by the interface module 104, and sends a control signal to the computer module 106 through the interface module 102 according to the state of the computer module 106 so as to control the operation of the computer module 106; the computer module 106 receives the control signal transmitted by the interface module 104 and executes a corresponding action.
The invention can determine the state of the computer module by detecting the state signal transmitted by the interface module, thereby controlling the computer module by the television controller, avoiding the manual interference of the user on the running state of the computer module, realizing the combined control of the television controller and the computer module, avoiding the complicated processing process of respectively and independently controlling, and having simple realization and no need of adding a modulation and demodulation module.
The interface module 104 shown in fig. 1A may be in the form of an interface as shown in fig. 1B to 1D.
As shown in fig. 1B, the interface module of the tv motherboard 208, i.e. the tv controller 102 in fig. 1A, includes at least one set of HDMI/DVI/VGA, one set of USB interfaces, one set of USB control lines and one set of power supplies. Wherein, a group of HDMI/DVI/VGA signals are used for transmitting audio/video signals output by the computer module; a group of USB interfaces are used for connecting a computer module or a touch screen and other devices such as USB storage devices, cameras, RFID devices and the like; a group of USB control lines is used for realizing the work of controlling the computer module, in order to distinguish the USB control lines from the USB interfaces, the USB control lines can adopt square USB or Mini USB interfaces, and use corresponding instructions to control the state of the computer module, such as an instruction A to control the startup of the computer, an instruction B to control the shutdown of the computer, an instruction C to control the sleep mode of the computer, and the like; and the power supply board 206 supplies 19V to the computer module 106, and can supply power to the independent power supply module or share one power supply module with the mainboard.
For example, as shown in fig. 1C, the USB control line in fig. 1B may be replaced by an IIC control line (I2C integrated circuit bus), and a set of IIC control lines is used to control the operation of the computer module, and use corresponding instructions to control the state of the computer module, such as instruction a to control the startup of the computer, instruction B to control the shutdown of the computer, instruction C to control the sleep mode of the computer, and so on. For example, as shown in fig. 1D, the USB control line in fig. 1B may be replaced by a serial control line, a set of serial (serial interface) control lines is used to control the operation of the computer module, and a corresponding protocol is used to control the state of the computer module, such as protocol a controlling the power on of the computer, protocol B controlling the power off of the computer, protocol C controlling the sleep mode of the computer, protocol W detecting the power on/off state of the computer module, and protocol M determining the installation state of the computer module.
While various implementations of the interface module 104 in a pc-tv combo according to embodiments of the present invention have been described above, it should be understood that it may be alternatively implemented in other different forms, such as the interface form described in the embodiments below, and a pc-tv combo according to the present invention will preferably use an OPS interface.
It should be noted that the USB, HDMI \ DVI \ VGA and IIC control lines or serial control lines or USB control lines shown in the figures refer to interfaces connecting the computer module and the television controller, which integrate the functions of these interfaces or control lines, and may not be simply a combination of these interfaces in terms of physical structure.
The following describes the computer-television integrated machine according to the embodiment of the present invention in detail by taking an OPS interface as an example.
Fig. 2 and fig. 3 are schematic application diagrams of a computer-television all-in-one machine taking an OPS interface as an example according to an embodiment of the invention.
As current hosts get smaller and smaller, INTEL corporation has developed a standard set of small host interface specifications: ops (open plug specification), which is a collection of common interfaces, for example, integrating the functions of interfaces such as USB interface, HDMI/DVI interface, etc. The television/monitor adds the interface, so that the computer module conforming to the standard interface can be conveniently and directly installed. However, this interface only gives the interface definition, which is shown below, and no specific control method and control flow are given. A corresponding control method is required to be set by oneself to control the computer module on the interface.
As shown in fig. 2, the OPS module 202 and the interface board 204 in fig. 2 may correspond to the interface module in fig. 1, and of course, although the interface board 204 is provided in fig. 2, it should be understood that, in an application system, the interface board 204 may not be needed, and the OPS module 202 may be directly connected to the tv main board 208, as shown in fig. 3. The television main board 208 in fig. 2 may correspond to the television controller 102 in fig. 1, and of course, the television main board 208 may include other modules besides the television controller, and only the functions of the television controller related to the present invention will be described below, and the functions of the other functional modules are not described herein again.
With continued reference to fig. 2 and 3, the OPS module 202 has a female socket, which may be, for example, 80PINJAETX25, with a corresponding male socket on the interface board 204. The OPS interface 202 includes a set of power supplies, which can supply power to the OPS module 202, and may be a separate power supply module (e.g., the power supply board 206) or a power supply module (e.g., the main power supply board 210 shown in fig. 3) shared with the motherboard; a set of TMDS signals of HDMI/DVI for transmitting the video signal output by the OPS module 202; a group of DP (displayport) signals, which can be used for directly lighting a liquid crystal screen with a DP port and can also be used for a television/monitor with the DP port; 3 sets of USB interfaces, according to the USB interface used for connecting the touch screen or other devices such as USB storage device, camera, RFID device, etc.; a group of control signals (PS _ ON: power-ON signal; PB _ DET: OPS interface detection signal; PWR _ STATUS: OPS working state detection signal) can conveniently use mechanical keys or a perfect software control flow to control the operation of the OPS; in addition, a set of AUDIO signals can be transmitted to the television/monitor; a set of UART signals, which can enable the communication, control and the like between the OPS module and the television/monitor; a fan control signal can be conveniently added with a switching value or a PWM value to control the fan under the condition of needing extra heat dissipation.
Some definitions of the OPS interface are briefly described above and are only set forth below with respect to the functions related to the present invention.
Referring to fig. 3 and 4, the interface module 104 in fig. 1 corresponds to the OPS interface and OPS module 202 in fig. 3, and in fig. 4, the OPS module shown in fig. 3 is integrated in the computer module 106.
As shown in fig. 4, the OPS interface includes a first state feedback line (PB _ DET), a control line (PS _ ON), and a second state feedback line (PWR _ STATUS), and the definitions of these control feedback lines are as follows.
As shown in fig. 3, three pull-up resistors R1, R2, R3 are electrically connected to the signals on the two status feedback lines and one control line, respectively.
PS _ ON is an output signal ON a GPIO ON the television controller (TV/Monitor MCU) 102. The high level is output at ordinary times, which is equivalent to that the power button of the computer is not pressed.
When the power-on signal needs to be given, if the power-on signal is set to be low level and lasts for a certain set time period (for example, 400 ms), the power button of the computer module is pressed and released. Meanwhile, the functions of the power button which needs to be defined on the computer are as follows: "power on/off". After PS _ ON is triggered, if the computer is in a shutdown state before being triggered, the computer is started; if the computer is in the power-off state before the triggering, the computer is powered off.
PWR _ STATU is the operating state signal of the computer. The GPIO on the TV/Monitor MCU is an input signal which is at low level when the computer is in a power-on state, and the control of the computer module 106 is lost after the computer is shut down, and the input signal is changed into high level due to the existence of a pull-up resistor.
PB _ DET is a grounding wire at the computer end, and is an input signal on the GPIO of the TV/Monitor MCU. When the computer module is not inserted, the high level is represented due to the existence of the pull-up resistor, and when the OPS interface is inserted, the level is pulled down at the moment, and the low level is represented.
Therefore, the first state feedback line is used for transmitting a state signal indicating whether the computer module is installed or not, the control line is used for transmitting a signal for triggering the computer module to be turned on and turned off, and the second state feedback line is used for transmitting a signal indicating the on and off states of the computer module.
After describing the functions of the two status feedback lines and the control line, how the television controller 102 and the computer module 106 complete the functions of power-on, standby, channel switching, and hot plug prevention based on the two status feedback lines and the control line will be explained.
Referring next to fig. 3 and 4, the tv controller 102 (i.e., the tv motherboard 208 in fig. 3) is further connected to a power board (e.g., a dedicated OPS power board 206), as shown in fig. 3, the OPS power board 206 is connected to the tv controller 102 and the computer module 106, and when receiving a turn-ON signal (19V _ ON/OFF) from the tv controller 102 (i.e., the tv motherboard 208), turns ON a power supply circuit for supplying power to the computer module 106.
When the television is turned ON, the television controller 102 determines whether the computer module 106 is installed according to the state signal transmitted by the first state feedback line (PB _ DET), and when it is determined that the computer module 106 is installed, sends an opening signal to the OPS power board 206 to open the power supply circuit of the computer module 106, and determines whether the current signal source channel is a designated signal source channel corresponding to the interface module (i.e., the OPS interface), and if the current signal source channel is the designated signal source channel, sends a control signal for triggering the computer module 106 to be turned ON through a control line (PS _ ON), otherwise, does not send a signal for triggering the computer module 106 to be turned ON.
The television controller 102 is further configured to detect a power on/off state of the computer module 106 after a first predetermined time period elapses after triggering the computer module 106 to be powered on, according to a signal transmitted by a second state feedback line (PWR _ STATUS), and prompt to manually power on the computer module if the computer module 106 is in the power off state.
Therefore, when the television is started, whether a computer module is installed is judged firstly, when the computer module is installed, whether a current signal source channel is an OPS channel is judged continuously, if so, the OPS channel is used by a user before, then the computer module is started, whether the computer module is started is determined according to the on-off state of the computer module, and if not, the user is prompted, and the user is required to carry out manual starting. Therefore, when the television is started, the computer can be controlled to be started, so that the independent starting of the computer and the television is avoided, and the manual operation of a user is not needed.
The above describes the startup control processing procedure of the computer-television all-in-one machine, and the following describes the standby control processing procedure of the computer-television all-in-one machine.
The television controller is further configured to detect the power on/off state of the computer module 106 according to the signal transmitted by the second state feedback line when the television controller receives the standby signal, send a shutdown signal to a power board (for example, an OPS power board shown in fig. 3) when the computer module 106 is in the power off state, shut down a power supply circuit of the computer module 106, enable the television to enter the standby state, and trigger to shut down the computer module 106 through the control line when the computer module 106 is in the power on state. In order to ensure that the computer module is in the shutdown state, the signal transmitted by the three control lines may be detected every second predetermined time period to determine whether the computer module 106 is in the shutdown state, and if the computer module 106 is in the startup state, the shutdown signal is continuously sent to the power panel to shut down the power supply circuit of the computer module 106, so that the television enters the standby state.
In some application scenes, the time for turning off the display is set, when the display is turned off, no video signal is output, the computer is detected to be in a power-on state, and at the moment, only the backlight is turned off. The computer can be awakened by using the mouse, the keyboard or the touch screen, and the video signal can be output again. The television/monitor turns back on the backlight after detecting the video signal.
When the computer is in a sleep state, or the user actively turns off the computer, no video signal is output, the computer module is detected to be in a power-off state, at the moment, the user does not use the computer module for a long time, and if the user does not have a wakeup operation or an active power-on operation within third preset time, the television/monitor enters a standby state, so that the consumption of electric energy can be further reduced.
For the all-in-one computer-television, in some scenarios, switching of the signal source channel is also involved, so that when a designated signal source channel related to the computer module is used (i.e. the OPS channel is used), if the designated signal source channel is switched to another channel, the television controller 102 keeps the computer module in a power-on state (although the OPS channel is currently used, although the user is considered to be temporarily switched to another channel when the channel is switched to another channel, the OPS channel is also switched back, so that the computer module 106 is still in the power-on state, the OPS channel is conveniently switched back from another channel, repeated operations of switching on and off the computer module are avoided, stability of the system is improved), and when the designated signal source channel is switched from the other channel, the power-on and off state of the computer module is detected according to a signal transmitted by the second state feedback line, and if the computer module is in the power-off state, the computer module is triggered to start up through the control line.
When the television is in a power-on state, the computer module is inserted, which causes large surge impact on a power supply, or causes electrostatic damage to the television/monitor and the HDMI interface of the computer, and also causes large damage to the hard disk of the computer. In order to avoid this problem, the all-in-one computer-television according to the present invention further provides a function of preventing hot plug, as described below:
the television controller 102 is further configured to detect a signal transmitted by the first state feedback line every fourth predetermined time period after the television is turned on to determine whether the computer module 106 is installed, detect the power on/off state of the computer module 106 according to the second state feedback line if it is determined that the computer module 106 is not installed, and send a shutdown signal to the power board to shut down the power supply circuit of the computer module 106 and maintain the shutdown state of the power supply circuit 106 until the television is turned off if it is determined that the computer module 106 is in the power off state. Therefore, the computer module 106 can be prevented from being inserted in the process from the time when the television is turned on to the time when the television is turned off, and even if the computer module 106 is inserted, the power supply circuit can not supply power to the computer module 106, so that surge impact and electrostatic damage are prevented.
Fig. 5 shows a flowchart of a pc-tv combo control method according to an embodiment of the present invention.
As shown in fig. 5, the method for controlling a computer-television set according to an embodiment of the present invention may include the following steps:
step 502, detecting the state of the computer module, and controlling the operation of the computer module according to the state of the computer module.
In the above technical solution, preferably, the step of detecting the state of the computer module by the television controller and controlling the operation of the computer module according to the state of the computer module specifically includes: when the television is started, judging whether the computer module is installed or not; when the computer module is installed, a power supply circuit of the computer module is started and whether the current signal source channel of the television is a specified signal source channel is judged; if the current signal source channel is the appointed signal source channel, triggering the computer module to start, otherwise, not triggering the computer module to start.
In the above technical solution, preferably, the method may further include: after the computer module is triggered to be started, detecting the startup and shutdown state of the computer module after a first preset time period, and prompting to manually start the computer module if the computer module is in the shutdown state.
In the above technical solution, preferably, the method may further include: when the television controller receives a standby signal, the television controller detects the on-off state of the computer module; when the computer module is in a power-off state, a power supply circuit of the computer module is turned off, and the television enters a standby state; when the computer module is in a power-on state, triggering to close the computer module, detecting whether the computer module is in the power-off state every a second preset time period, if so, closing a power supply circuit of the computer module, and enabling the television to enter a standby state.
In any of the above technical solutions, preferably, the method may further include: and when the television controller detects that the state of the computer module is a power-off state and no video signal is output, prompting that the television enters a standby state if no operation is performed on the television after a third preset time period.
In any of the above technical solutions, preferably, the method may further include: when the computer-television all-in-one machine uses the appointed signal source channel related to the computer module, if the channel is switched to other channels, the computer module is kept in a power-on state; when the other channels are switched to the appointed signal source channel, the television controller detects the power-on and power-off state of the computer module, and if the computer module is in the power-off state, the television controller triggers the computer module to be powered on.
In any of the above technical solutions, preferably, the method may further include: after the television is started, detecting whether the computer module is installed every fourth preset time period, and if the computer module is determined not to be installed, detecting the on-off state of the computer module; if the computer module is determined to be in the power-off state, the power supply circuit of the computer module is closed, and the power supply circuit is kept in the closed state until the television is turned off.
An OPS channel is added to a signal source of the television/monitor, the OPS channel can display a video signal of an OPS module, and the television/monitor is used as a display of a computer module. In order to increase man-machine interaction, meanwhile, a power-on/off option of a computer needs to be added into a user menu of the television/monitor, and according to the detection of the PWR _ STATUS state, when the PWR _ STATUS = L (the computer state is on), a button can only select 'power-off'; when PWR _ STATUS = H (computer state off) only the power-off button can be selected as an operation when the user actively turns on or off the computer. In addition, a power on/off button can be arranged on a user remote controller or a key of the television/monitor machine, the active power on/off operation of a user can be responded, and the function of one-key power on/off can also be achieved. When a user presses a power-on or power-off button, the user indicates that the user wants to use the computer module, the signal source is switched to the OPS channel, and the power-on and power-off process of the computer is displayed.
In order to prevent single-line detection from being mistaken, an anti-shake mechanism needs to be added for each IO detection in the scheme, that is, the IO state is sampled once and then detected once again every a set time period, for example, 200ms, and the port is considered to be in a determined state only if the two states are consistent.
There are several main aspects to the control of the OPS computer module:
1. the computer is powered on or not according to the installation state of the computer module;
2. determining whether to open the computer according to the signal source channel and the current working state of the computer;
3. the computer needs to be shut down before standby;
4. and judging and taking countermeasures for the working state of the computer.
The following describes the specific implementation of the above aspects in detail.
FIG. 6 shows a power-on control flow diagram for a television kiosk, according to an embodiment of the invention.
As shown in fig. 6, in step 602, when the television is turned on, the TV/Monitor MCU detects the status of PB _ DET, and when PB _ DET = H, it indicates that the computer module is not installed and cannot be used, and then step 614 is entered.
If the computer module is installed, go to step 604, turn on the power supply circuit of the computer module.
Step 606, judging whether the current signal source channel of the computer-television all-in-one machine is the OPS channel, if so, entering step 608, otherwise, entering step 616.
In step 608, the voltage of the PS _ ON signal is set to be low and kept for a certain set time period (e.g., 400 ms), triggering the computer module to start.
Step 610, determining whether the computer module is in a power-on state according to the signal state of the control line (PWR _ STATUS). If the computer module is in the boot state, the boot processing procedure is ended, and if the computer module is not in the boot state, step 612 is entered to prompt the user to manually start the computer module.
In step 614, it is determined whether the current signal source channel is the OPS channel, if so, step 618 is performed, otherwise, step 616 is performed.
In step 618, if the computer module is not installed and the tv/monitor is currently on the OPS channel, the tv/monitor will jump out of the current signal source channel and enter the VGA (or any other channel) to start up.
In step 616, if the current signal source channel is not on the OPS channel, it indicates that the user does not need to use the OPS channel, and the user enters the current channel to start up.
Therefore, when PB _ DET = L, indicating that the computer module is installed, the 19V _ ON/OFF signal controls the power supply module (e.g., the OPS power board 206 in fig. 3) to be turned ON to supply power to the OPS module. If the current signal source channel is not the OPS channel, the situation that the user uses the OPS channel last time is indicated, a computer is not needed, the computer cannot be opened, and the user can directly enter the current signal source channel to start the computer. If the current signal source channel is the OPS channel, the last used OPS channel is indicated, and the user needs to use the computer. At this time, PS _ ON is set to be lower for a certain set time period (for example, 400 ms), triggering the computer to start. After a set time period (for example, 1000 ms), the state of the PWR _ STATUS is detected, if the state is L, the computer is successfully started, if the state is H, the computer is not successfully started, a screen is required to display that the computer is not successfully started, a prompt of manually starting is requested, and after 5S or when the user performs an operation, the prompt disappears.
It should be noted that, it may be determined whether the current signal source channel is the OPS channel according to the previous channel record, or it may be determined which channel the current signal source channel is according to the ID of the current signal source channel.
Fig. 7 shows a flow chart of a channel switching process of the pc-tv combo according to the embodiment of the present invention.
As shown in fig. 7, if switching into the OPS channel from another signal source channel, the signal source switching process may include the following steps:
step 702, determining the power on/off state of the computer module, if the computer module is in the power on state, directly switching to the OPS channel, and if the computer module is in the power off state, entering step 704.
In step 704, PS _ ON is set to be low for a predetermined period of time (e.g., 400 ms), triggering the computer to boot.
Step 706, determining the power on/off status of the computer module. If the computer module is still in the shutdown state, go to step 708, otherwise, end the process and switch to the OPS channel.
Step 708, prompt to manually start the computer module.
It should be noted that, if the current signal source channel is the OPS channel, it indicates that the user is using the computer, and at this time, the switching to another signal source is also regarded as a temporary operation, and the computer is not turned off, so that the OPS channel is quickly switched back next time.
If the switching is from another signal source to the OPS channel, the user is indicated to be ready to use the OPS module. As shown in the flow of cutting into the OPS channel shown in fig. 5. The STATUS of PWR _ STATUS is first checked and if PWR _ STATUS = L, indicating that the computer is open, the OPS channel is entered directly. If PWR _ STATUS = H, it indicates that the computer is not started, PS _ ON is first set to be lower for a certain predetermined time, for example 400ms, after a certain set time period (for example 1000 ms), PWR _ STATUS is detected, if L, the computer is successfully started, if H, the screen displays that the computer is not successfully started, and a prompt of manual starting is requested, and after 5S or the user performs operation, the prompt in the screen disappears.
Fig. 8 shows a standby control flow diagram of the pc-tv combo according to an embodiment of the present invention.
As shown in fig. 8, the user presses a standby key on the remote control on any channel, step 802, indicating that the user needs to turn off the television/monitor.
Step 804, the state of PWR _ STATUS is detected, if PWR _ STATUS = H, the computer is in a power-off state, step 812 is entered, otherwise step 806 is entered.
At this point, the power supply circuit of the OPS module should be turned off and normally enters the standby state, step 812.
In step 806, if PWR _ STATUS = L indicates that the computer is in the power-ON state, the PS _ ON signal is triggered to turn off the computer.
Step 808, shutdown is a longer process. At this time, the STATUS of PWR _ STATUS should be scanned once every predetermined time period (e.g., 500 ms) to determine whether the computer is powered off. If the voltage is changed to H, the power-off is finished, and the standby mode is realized after the 19V power supply is closed; if the state of PWR _ STATUS is L, proceed to step 810.
Step 810, if the detection time is as long as 60S and PWR _ STATUS is still L, it indicates that normal shutdown is not possible, step 812 is entered, the computer 19V is directly powered off and then enters a standby mode, and if 60S is not reached, step 808 is returned to.
In addition to the control processes of power-on, standby and channel switching described above, the control processes in special scenarios are involved, such as setting the time to turn off the display or setting the time to sleep for the computer inevitably during the use of the OPS module by the user. The state of turning off the display is PWR _ STATUS = L, and HDMI does not output a signal. The corresponding operation of the tv/monitor should be to turn off the backlight and continuously scan the video signal of the OPS channel. After a user uses a mouse, a keyboard or a touch screen to wake up a computer and load a video signal, the backlight is turned on.
When the computer enters a sleep state, PWR _ STATUS = H, and no signal is output by the HDMI. When the television/monitor detects OPS channel HDMI no-signal, and PWR _ STATUS = H, there are two possibilities: the computer enters a sleep mode, a sleep mode or the user actively turns off the computer, the three conditions indicate that the user does not use the OPS module or does not use the module for a long time, and the screen prompts the user that the television/monitor enters a standby mode without any operation after 15 minutes so as to save power.
In order to further protect the integrated computer and television, the invention also provides a method for preventing hot plug: the computer module is inserted in the power-on state, so that large surge impact is caused to a power supply, or electrostatic damage is caused to a television/monitor and an HDMI (high-definition multimedia interface) of a computer, and a hard disk of the computer is also greatly damaged. Therefore, the control detects the state of PB _ DET only at the time of power-on, and determines whether to turn on the power supply of 19V according to the state at the time of power-on. And scanning the state of the PB _ DET once after the computer module is started, if the state is changed, detecting the state of the PWR _ STATUS, and if the PWR _ STATUS = H, indicating that the computer module is not on the interface. At this point, 19V is turned off until the next power-on to detect the state of PB _ DET. Therefore, the damage caused by repeated hot plugging of the computer module by a user is effectively avoided.
It should be understood by those skilled in the art that although the embodiments described above are described with reference to the OPS interface as an example, other interfaces suitable for the computer module may be used. The form of the interface is not limited, and the interface only needs to comprise an interface (such as HDMI, DVI and VGA) for transmitting computer audio and video signals, two groups of state feedback lines, one group of control lines and one group of power supply.
According to the integrated mechanism method of the computer and the television, the control of the computer module in various aspects can be completed through the state detection of the control line of the interface, a set of complete control process is formed, the system architecture is simple, the modulation and demodulation of signals in the related technology are avoided, and the reliability of the system is greatly improved. The whole control process is simple, the states of all control signals are combined with corresponding control processing flows, the use habits of users are effectively simulated, and the intelligence of the computer-television all-in-one machine is improved.
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 (12)
1. A control method for a computer and television integrated machine is characterized by comprising the following steps:
detecting the state of a computer module, and controlling the operation of the computer module according to the state of the computer module; wherein,
the step of detecting the state of the computer module and controlling the operation of the computer module according to the state of the computer module specifically comprises the following steps:
when the television is started, judging whether the computer module is installed or not;
when the computer module is installed, starting a power supply circuit of the computer module and judging whether a current signal source channel of the television is a specified signal source channel;
if the current signal source channel is the appointed signal source channel, triggering the computer module to start, otherwise, not triggering the computer module to start.
2. The computer-television integrated machine control method according to claim 1, further comprising:
after the computer module is triggered to be started, detecting the startup and shutdown state of the computer module after a first preset time period, and prompting to manually start the computer module if the computer module is in the shutdown state.
3. The computer-television integrated machine control method according to claim 1, further comprising:
when the television controller receives a standby signal, the television controller detects the on-off state of the computer module;
when the computer module is in a power-off state, a power supply circuit of the computer module is turned off, and the television enters a standby state;
and after the computer module is in the power-on state, triggering to close the computer module, detecting whether the computer module is in the power-off state every a second preset time period, if so, closing a power supply circuit of the computer module, and enabling the television to enter the standby state.
4. The computer-television integrated machine control method according to claim 1, further comprising: and when the state of the computer module is detected to be a power-off state and no video signal is output, prompting that the television enters a standby state if no operation is performed on the television after a third preset time period.
5. The computer-television integrated machine control method according to claim 1, further comprising:
when the computer-television all-in-one machine uses the appointed signal source channel related to the computer module, if the channel is switched to other channels, the computer module is kept in a power-on state;
when the other channels are switched to the appointed signal source channel, the television controller detects the power-on and power-off state of the computer module, and if the computer module is in the power-off state, the television controller triggers the computer module to be powered on.
6. The PC-TV all-in-one machine control method as claimed in any one of claims 1 to 5, further comprising:
after the television is started, detecting whether the computer module is installed every fourth preset time period, and if the computer module is determined to be installed, detecting the on-off state of the computer module;
if the computer module is determined to be in the power-off state, the power supply circuit of the computer module is closed, and the power supply circuit is kept in the closed state until the television is turned off.
7. An all-in-one computer and television machine is characterized by comprising:
the television controller is connected to the computer module through an interface module, detects the state of the computer module through a state signal transmitted by the interface module, and sends a control signal to the computer module through the interface module according to the state of the computer module so as to control the operation of the computer module;
the computer module receives the control signal transmitted by the interface module and executes corresponding action; wherein,
the interface module comprises a first state feedback line and a control line, wherein the first state feedback line is used for transmitting a state signal whether the computer module is installed or not, and the control line is used for transmitting a control signal for triggering the computer module to be turned on and turned off;
the television controller is also connected to a power panel and used for judging whether the computer module is installed or not according to the state signal transmitted by the first state feedback line when the television is started, sending a starting signal to the power panel to start a power supply circuit of the computer module when the computer module is determined to be installed, judging whether a current signal source channel of the television is a designated signal source channel corresponding to the interface module or not, if the current signal source channel is the designated signal source channel, sending a control signal for triggering the computer module to be started through the control line, and if not, not sending a control signal for triggering the computer module to be started;
the power panel is connected to the television controller and the computer module, and when receiving a starting signal from the television controller, the power panel starts a power supply circuit for supplying power to the computer module.
8. The all-in-one computer-television set as claimed in claim 7, wherein the interface module further comprises a second state feedback line for transmitting a signal of the on/off state of the computer module;
the television controller is further used for detecting the on-off state of the computer module according to the signal transmitted by the second state feedback line after a first preset time period after triggering the computer module to be turned on, and prompting to manually turn on the computer module if the computer module is in the off state.
9. The all-in-one computer-television set as claimed in claim 7, wherein the interface module comprises a control line and a second state feedback line, the control line is used for transmitting a control signal for triggering the computer module to be turned on and turned off, and the second state feedback line is used for transmitting a signal of the on and off state of the computer module;
the television controller is also connected to a power panel and is used for detecting the on-off state of the computer module according to a signal transmitted by the second state feedback line when the television controller receives a standby signal, sending a closing signal to the power panel when the computer module is in the off state, closing a power supply circuit of the computer module, and enabling the television to enter the standby state;
the power panel is connected to the television controller and the computer module, and is used for closing a power supply circuit for supplying power to the computer module when receiving a closing signal from the television controller.
10. The all-in-one computer-television set as claimed in claim 7, wherein the interface module comprises a second state feedback line, and the second state feedback line is used for transmitting a signal of the on-off state of the computer module;
and the television controller is also used for prompting that the television enters a standby state if no operation is performed on the television after a third preset time period when the state of the computer module is detected to be a power-off state according to the signal transmitted by the second state feedback line and no video signal is output.
11. The all-in-one computer-television set as claimed in claim 7, wherein the interface module comprises a control line and a second state feedback line, the control line is used for transmitting a signal for triggering the computer module to be turned on and turned off, and the second state feedback line is used for transmitting a signal for triggering the computer module to be turned on and turned off;
the television controller is further configured to, when a specified signal source channel related to the computer module is used, maintain the computer module in a power-on state if switching to another channel, and detect a power-on/off state of the computer module according to a signal transmitted by the second state feedback line when switching from the other channel to the specified signal source channel, and trigger the computer module to be powered on through the control line if the computer module is in the power-off state.
12. The all-in-one computer-television machine according to any one of claims 7 to 11, wherein the interface module comprises a first state feedback line, a control line and a second state feedback line, the first state feedback line is used for transmitting a state signal whether the computer module is installed or not, the control line is used for transmitting a signal for triggering the computer module to be turned on and off, and the second state feedback line is used for transmitting a signal for indicating the on and off state of the computer module;
the television controller is also connected to a power panel, after the television is started, signals transmitted by the first state feedback line are detected every fourth preset time period to determine whether the computer module is installed, if the computer module is determined to be installed, the on-off state of the computer module is detected according to the second state feedback line, and if the computer module is determined to be in the off state, a closing signal is sent to the power panel to close a power supply circuit of the computer module and keep the closing state of the power supply circuit until the television is turned off;
the power panel is connected to the television controller and the computer module, and is used for closing a power supply circuit for supplying power to the computer module when receiving the closing signal from the television controller.
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| CN104780467A (en) * | 2015-03-20 | 2015-07-15 | 四川长虹电器股份有限公司 | Method and system for giving a prompt for close of signal source equipment during shutdown of television |
| CN104853120B (en) * | 2015-05-07 | 2017-11-28 | 南京熊猫电子股份有限公司 | A kind of synchronous standby method with start of television set and external source device |
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| CN106249832B (en) * | 2016-07-27 | 2019-12-27 | 青岛海信电器股份有限公司 | Touch control all-in-one machine and power supply control method thereof |
| CN106383769A (en) * | 2016-09-21 | 2017-02-08 | 广州视睿电子科技有限公司 | Management method and device for hot plug of computer module in touch all-in-one machine |
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| CN112948186B (en) * | 2019-12-11 | 2022-11-11 | 海信视像科技股份有限公司 | Detection device and detection method of interface signal |
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Address after: 266555 Qingdao economic and Technological Development Zone, Shandong, Hong Kong Road, No. 218 Patentee after: Hisense Visual Technology Co., Ltd. Address before: 266555 Qingdao economic and Technological Development Zone, Shandong, Hong Kong Road, No. 218 Patentee before: QINGDAO HISENSE ELECTRONICS Co.,Ltd. |