CN105446458B - Power-supply management system and method for managing power supply - Google Patents
Power-supply management system and method for managing power supply Download PDFInfo
- Publication number
- CN105446458B CN105446458B CN201510997277.0A CN201510997277A CN105446458B CN 105446458 B CN105446458 B CN 105446458B CN 201510997277 A CN201510997277 A CN 201510997277A CN 105446458 B CN105446458 B CN 105446458B
- Authority
- CN
- China
- Prior art keywords
- graphics processor
- monitoring
- controlling unit
- graphics
- standby time
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/32—Means for saving power
- G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
- G06F1/3234—Power saving characterised by the action undertaken
- G06F1/3243—Power saving in microcontroller unit
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/32—Means for saving power
- G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
- G06F1/3206—Monitoring of events, devices or parameters that trigger a change in power modality
- G06F1/3215—Monitoring of peripheral devices
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/32—Means for saving power
- G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
- G06F1/3234—Power saving characterised by the action undertaken
- G06F1/325—Power saving in peripheral device
- G06F1/3253—Power saving in bus
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Controls And Circuits For Display Device (AREA)
Abstract
The present invention provides a kind of power-supply management system.The system includes：One display device；One graphics processor；Time schedule controller, including a video frame buffer；An and monitoring and controlling unit, to monitor multiple bus activities of one bus of graphics processor place, and by filtering multiple graphics processing activities corresponding with graphics processor in bus activity, wherein the graphics processing activities such as monitoring and controlling unit also foundation estimate period standby time of the graphics processor, multiple images are written to video frame buffer in wherein monitoring and controlling unit also control pattern processor burst, use the image for allowing sequence controller to be enough to be written in display device broadcasting graphics processor within period standby time and are automatically updated with carrying out panel.
Description
The application be the applying date be on 08 22nd, 2012, application No. is 201210301890.0, entitled " power supplys
The divisional application of the application for a patent for invention of management system and method for managing power supply ".
Technical field
The invention relates to power managements, and (Panel self are automatically updated in particular to control panel
Refresh power-supply management system) and method.
Background technology
In traditional display technology, picture is presented using processor support screen and generally requires to consume many electric power, because
Be conventional display device panel when showing that picture does not update, still can from system storage or graphics processor (such as
GPU it) reads and shows picture, and interruption (interrupt) signal is sent out to graphics processor.However, with scientific and technological progress,
It is automatic that panel has been developed in embedded DisplayPort standards (embedded DisplayPort, eDP) 1.3 editions in Intel
The technology for updating (Panel Self Refresh) is implied that when user is when browsing web sites or reading electronic book, because of picture
Content is typically static.Therefore, display device panel can only use the built-in of display device panel when picture does not update
Data in memory and volitional check screen updates rate (refresh rate), and no longer read system storage or figure
The display picture of shape processor, and interrupt signal is reduced to 30 times per second (depending on screen curtain turnover rates), use reduction work(
Rate consumes.
Fig. 1 be show meet 1.3 standards of eDP and conventional power source management system that controllable panel automatically updates it is brief
Functional block diagram.As shown in Figure 1, power-supply management system 10 includes a graphics processor 20 and a display device panel 30, wherein
Display device panel 30 further includes 40, one display device 50 of time schedule controller (T-CON) and a backlight module 60.Processor 20
Including a transmission end 21, to transmit display picture caused by graphics processor 20 to sequence controller 40.Graphics processor
20 can be the graphics processor (GPU) in an independent display card, or one be located on a motherboard (Mainboard)
A graphics processor in central processing unit (CPU) (such as Intel i5, i7CPU).Sequence controller 40 connects including at least one
Receiving end 41, a pixel arrangement unit 42,43, one video frame buffer (Video of a display device interface (LCD interface)
Frame buffer) 44 and a backlight control unit (Backlight control unit) 45.
In simple terms, sequence controller 40 receives the display picture from graphics processor 20 by receiving terminal 41, then passes through
It is stored in video by pixel arrangement unit 42 by the pixel rearrangement of the picture received and by the pixel after rearranging
Frame buffer 44.Display device interface 43 by pixel arrangement unit 42 by reading picture data in video frame buffer 44, and
The row driver 51 and line driver 52 in display device 50 are controlled, the read picture of display is used.Backlight control unit 45
To control the switch of backlight module 60.
It is noted that in traditional sequence controller 40, the size of video frame buffer 44 often only there are one
The size of video frame.By taking full resolution high image quality picture (Full HD) as an example, size can be 1920*1080*3=
6220800bytes (about 6Mbytes).An image coder and an image are also optionally included in sequence controller 40
Decoder (is not painted), and wherein image coder encodes the display picture that receiving terminal 41 is received, then will be after coding
Display picture is stored in by pixel arrangement unit 42 in video frame buffer 244.Detailed content can refer to " An LCD
Driver with on-chip frame buffer and 3times image compression」SPIE-IS&T 2008,
Vol.6807,68070H-1。
When the progress panel of sequence controller 40 automatically updates (when for instance in still frame), can directly be delayed by video frame
It rushes and takes out stored picture data in device 44 and directly play on the display device 50, graphics processor 20 can be at low at this time
Power consumption state uses saving electric power.In addition to this, when graphics processor 20 has detected new image data (such as from striking
Beating keyboard button or mobile mouse), graphics processor 20 can arouse transmission end 21, and transmit a new image data to sequential
Video frame buffer 44 in controller 40.
In traditional power-supply management system 10, because graphics processor 20 often receives the interruption from sequence controller 40
Signal or the interrupt signal for receiving external device (ED), graphics processor 20 must often be waken up and it is in running order (such as
The S0 states of ACPI standards).In other words, graphics processor 20 has no often under the working condition of high power consumption
Method is effectively reduced the power consumption of power-supply management system 10.Therefore, there is an urgent need for a kind of power-supply management systems more effectively to reduce work(
Rate consumes, and uses the usage time for reaching longer.
Invention content
The present invention provides a kind of power-supply management system.The system includes：One display device；One graphics processor；One sequential
Controller, including a video frame buffer；And a monitoring and controlling unit, to the more of a bus where monitoring graphics processor
A bus activity, and by filtering multiple graphics processing activities corresponding with graphics processor, wherein monitoring and controlling in bus activity
The graphics processing activities such as unit also foundation estimate period standby time of the graphics processor, and control the graphics processor and exist
A low power consumpting state is in period standby time；Multiple are written in wherein monitoring and controlling unit also control pattern processor burst
Image is used and sequence controller is allowed to be enough within period standby time to play graphics process in display device to video frame buffer
The image that device is written is automatically updated with carrying out panel.
The present invention also provides a kind of power-supply management systems.The system includes：One display device；One graphics processor, including
One monitoring and controlling unit to monitor multiple bus activities of the bus where the graphics processor, and is lived by such bus
Filtering multiple graphics processing activities corresponding with the graphics processor in dynamic；And time schedule controller；The wherein monitoring and controlling
Unit also estimates period standby time of the graphics processor according to such graphics processing activity, and controls the graphics processor
A low power consumpting state is within period standby time, the wherein monitoring and controlling unit also controls graphics processor burst and writes
Enter multiple images to the video frame buffer, uses and the sequence controller is allowed to be enough to broadcast in the display device within the standby time
Put such image that the graphics processor is written.
The present invention also provides a kind of method for managing power supply, are used for a power-supply management system, which includes one
Graphics processor, a monitoring and controlling unit, time schedule controller and a display device.This method includes：Utilize the monitoring and controlling
Unit monitors multiple bus activities of the bus where the graphics processor, and by being filtered and the figure in such bus activity
Processor multiple graphics processing activities accordingly；Estimate the figure according to such graphics processing activity using the monitoring and controlling unit
One period standby time of processor, and control the graphics processor and be in a low power consumpting state within period standby time；
It is slow that the video frame that multiple images are written to the sequence controller in graphics processor burst is controlled using the monitoring and controlling unit
Device is rushed, uses and the sequence controller is allowed to be enough to play the graphics processor in the display device within period standby time and write
The such image entered is automatically updated with carrying out panel.
Description of the drawings
Fig. 1 be show meet 1.3 standards of eDP and conventional power source management system that controllable panel automatically updates it is brief
Functional block diagram.
Fig. 2A is the brief functional block diagram for the power-supply management system 200 for showing an embodiment according to the present invention.
Fig. 2 B are the brief functional block diagrams for the power-supply management system 200 for showing another embodiment according to the present invention.
Fig. 3 A are to show the interruption from the bus where each device to graphics processor in an embodiment according to the present invention
The schematic diagram of signal.
Fig. 3 B are shown in the schematic diagram for being rearranged in Fig. 3 A and dividing the interrupt signal after group.
Fig. 3 C are the signals for the wake-up signal for showing that monitoring and controlling unit 222 is sent out in an embodiment according to the present invention
Figure.
Fig. 4 is the state diagram of the state machine for the monitoring and controlling unit 222 for showing an embodiment according to the present invention.
Fig. 5 is the flow chart for showing the method for managing power supply of an embodiment according to the present invention.
[main element label declaration]
10,200~power-supply management system；20,220~processor；
21,221~transmission end；30,230~display device panel；
40,240~sequence controller；41,241~receiving terminal；
42,242~pixel arrangement unit；43,243~display device interface；
44,244~video frame buffer；45,245~backlight control unit；
50,250~display device；51,251~row driver；
52,252~line driver；60,260~backlight module；
222~monitoring and controlling unit；
310,311,312,313,320,330,340~interrupt signal；
350,360~pulse signal；410-450~state.
Specific implementation mode
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, a preferred embodiment cited below particularly, and match
Institute's accompanying drawings are closed, are described in detail below.
Fig. 2A is the brief functional block diagram for the power-supply management system 200 for showing an embodiment according to the present invention.Such as Fig. 2A
Shown, power-supply management system 200 includes a graphics processor 220 and a display device panel 230, wherein display device panel
230 further include 240, one display device 250 of time schedule controller (T-CON) and a backlight module 260.Graphics processor 220 is wrapped
A transmission end 221 is included, to transmit display picture caused by graphics processor 220 to sequence controller 240.In an embodiment
In, graphics processor 220 can be the graphics processor (GPU) in an independent display card.In another embodiment, figure
Processor 220 can be a central processing unit (CPU) (such as Intel i5, i7 on a motherboard (Mainboard)
CPU the graphics processor in).It is aobvious that sequence controller 240 includes at least a receiving terminal 241, a pixel arrangement unit 242, one
Showing device interface (LCD display interface) 243, one video frame buffer (Video frame buffer) 244 and
One backlight control unit (Backlight control unit) 245.
In simple terms, sequence controller 240 receives multiple images from graphics processor 220 by receiving terminal 241, then
Via multiple images of pixel arrangement unit 242 by the pixel rearrangement of multiple images received and after rearranging
Pixel be stored in video frame buffer 244.Display device interface 243 is by pixel arrangement unit 242 by video frame buffer
The pixel data of such image is sequentially read in 244, and controls row driver 251 and line driver in display device 250
252, it uses and shows multiple read images successively.Backlight control unit 245 is controlling the switch of backlight module 260.It needs
It is noted that the video frame buffer 244 of the present invention is different from the video frame buffer 44 in conventional power source management system 10, depending on
Frequency frame buffer 44 is only capable of one image of storage, and the video frame buffer 244 of the present invention can store multiple images (such as 10
Or 30 images, quantity are adjustable).In other words, video frame buffer 244 of the invention can once store 10 images,
It is used so that progress panel automatically updates.
Fig. 2 B are the brief functional block diagrams for the power-supply management system 200 for showing another embodiment according to the present invention.One
In embodiment, power-supply management system 200 further includes a monitoring and controlling unit 222, to monitor (monitor) graphics processor
The bus activity (bus activity) of bus (such as system bus or PCI-E buses) where 220.In one embodiment,
Monitoring and controlling unit 222 can be the microcontroller (Microcontroller unit) outside graphics processor 220, such as scheme
Shown in 2A.In another embodiment, monitoring and controlling unit 222 can be also built into graphics processor 220, as shown in Figure 2 B.
In one embodiment, monitoring and controlling unit 222 can also be the software package supported by specific hardware, but the present invention and unlimited
In this.
Sequence controller 240 is that timing sends interrupt signal to graphics processor when carrying out panel and automatically updating (PSR)
220, monitoring and controlling unit 222 can also by graphics processor 220 in bus from different device (such as from PCI-E, USB,
The device of SATA and SDIO interfaces) interrupt signal rearrange, and divide the interrupt signal after rearranging to group, and distribute extremely
After the interrupt signal that sequence controller 240 is periodically sent.For example, the bus of 220 script of graphics processor is lived
Dynamic state, implies that the various interrupt signals before not rearranging are as shown in Figure 3A.With picture update rate for 60 pictures per second
For, the 30 complete pictures of needs per second of sequence controller 240, every complete picture can split into figure field (top
Field) and lower figure field (bottom field), then by sequence controller 240 sequentially to the upper figure field of every complete picture and under
Figure field carries out release of an interleave (de-interlacing) to allow display device 250 to have the picture update rate of 60 pictures per second.It changes
Sentence is talked about, and sequence controller is implied that and sent out with regard to needing to obtain a complete picture from graphics processor 220 for 240 every 1/30 seconds
Interrupt signal is to obtain picture.
Fig. 3 A are to show the interruption from the bus where each device to graphics processor in an embodiment according to the present invention
The schematic diagram of signal.Fig. 3 B are shown in the schematic diagram for being rearranged in Fig. 3 A and dividing the interrupt signal after group.Fig. 3 C are displays
The schematic diagram for the wake-up signal that monitoring and controlling unit 222 is sent out in an embodiment according to the present invention.By Fig. 3 A it can be seen that, by when
It is (to imply that for 1/30 second that sequence controller 240, which is sent out to the time interval between the interrupt signal 310 of graphics processor 220 and 320,
Its chronomere is about millisecond grade), and from 311~313 script of the interrupt signal of other devices be likely distributed in this 1/30
Between the interval of second.Interrupt signal after monitoring and controlling unit 222 rearranges is as shown in Figure 3B, wherein by sequential control
It is also 1/30 second that device 240 processed, which is sent out to the time interval of 220 interrupt signal 330 and 340 of graphics processor, it should be noted that figure
The interrupt signal expression of identical label is all from same device in 3B, and the interrupt signal after rearranging is only purposes of discussion,
The bus activity unrelated with graphics processor can be filtered (such as interrupt signal 311,312), and only retain and graphics process
220 related interrupt signal of device (such as interrupt signal 310,320,313).As shown in Figure 3 C, the transmission of monitoring and controlling unit 222 one
Wake-up signal to graphics processor 220, use allow graphics processor 220 wake-up signal be high logic level (high logic
In running order when level), wherein voltage of the graphics processor 220 in working condition is, for example, 1W.When wake-up signal is
When low logic level (low logic level), then allow graphics processor 220 be in low power consumpting state (such as one sleep shape
State), wherein voltage of the graphics processor 220 in low power consumpting state is, for example, 0.001w.More specifically, because coming from each dress
Control unit 222 can be monitored to the interrupt signal of graphics processor 220 by, which setting, rearranges and divides group (grouping), and divides
Be assigned to after the interrupt signal for being next to and periodically sending from sequence controller 240 and handle together, this section have it is many in
In a period of break signal (such as pulse signal 350 and 360), graphics processor 220 can be allowed in running order, use concentrate into
The operation and control of each device of row.During wake-up signal is low logic state, graphics processor 220 then enters low-power consumption shape
State.When wake-up signal is in high logic state, in addition to allowing graphics processor 220 to enter working condition, it is alternatively arranged as a burst
Signal (burst control signal) is controlled to promote the operating frequency (operating of graphics processor 220
frequency).Still further, if the predetermined registration operation frequency of graphics processor 220 is 1GHz, when wake-up signal is in height
When logic state, monitoring and controlling unit 222 can by the operating frequency of graphics processor 220 improve to 1.3GHz (it is non-limiting, it is adjustable
It is whole), burst (burst) graphics processor 220 is used in a short time by multiple continuous images (such as 10 or 30 images)
Video frame buffer 244 is written.
By taking the buses of PCI Express × 4 as an example, bandwidth can reach 800MBytes/sec, add graphics processor
220 operating frequency be 1GHz, then graphics processor 220 execute burst write-in image to video frame buffer 244 time about
Only tens of microseconds (μ s), and the interrupt signal that sequence controller 240 is sent to graphics processor 220 is about 33 millisecond (1/30
Second).From the point of view of time scale, the time scale that graphics processor 220 executes shared by the operation of burst write-in image is very small, because
This graphics processor 220 can be at low power consumpting state in most of the time, use saving electric power.
Continuous previous embodiment is held, main three functions of obtaining the monitoring and controlling unit 222 of the present invention can be concluded：(1) it supervises
It surveys all activities of the bus (PCI-E buses) where graphics processor 220 and screens the activity about graphics processor 220；
(2) multiple images are written to video frame buffer 244 in the burst of control pattern processor 220, use progress panel and automatically update；
(3) control pattern processor 220 enters low power consumpting state.
In one embodiment, monitoring and controlling unit 222 continues to monitor the activity of bus, and judges to be stored in video frame buffer
It is whether insufficient that the image quantity that panel automatically updates is used in device 244.In simple terms, it is not to carry out the principle that panel automatically updates
User can be allowed to experience picture and generate delay.With Microsoft " opening connection forever forever " (Always On Always
Connected) for the demand of standard, when graphics processor 220 is in low power consumpting state, and graphics processor 220 is by low work(
The upper limit value that consumption state returns to the wakeup time (wakeup time) of working condition is 300 milliseconds.Actually graphics processor
220 wakeup time may faster, such as 100 milliseconds.
For example, 30 images are written to video frame buffer in the burst of 222 control pattern processor 220 of monitoring and controlling unit
Device 244, and display device 250 has the picture update rate of 60 images per second, real-time sequence controller 240 of anticipating is per second to need 30
Complete picture, every complete picture can split into figure field (top field) and lower figure field (bottom field), then by when
It is aobvious to allow that sequence controller 240 sequentially carries out release of an interleave (de-interlacing) to the upper figure field of every complete picture and lower figure field
Showing device 250 has the picture update rate of 60 pictures per second.Therefore, it is stored to read to need to spend 1 second for display device
30 pictures read every 33 milliseconds of picture equispaced.If bus where graphics processor 220 is in 20 images (or 660
Millisecond) after still without activity, to have been approached panel automatic for 300 milliseconds of wakeup time for adding graphics processor 220 because of 660 milliseconds
The more situation of kainogenesis display data deficiency, at this time monitoring and controlling unit 222 then need force wake up graphics processor 220 burst write
Enter to show picture to video frame buffer 244, has automatically updated that display data is insufficient to be happened to avoid panel.
In simple terms, monitoring and controlling unit 222 need to ahead of time judge next time completely wake-up graphics processor 220 before be
It is no to be write there is a situation where display picture deficiency if so, monitoring and controlling unit 222 then directly wakes up the burst of graphics processor 220
Enter to show picture to video frame buffer 244.If it is not, then wake-up processor 222 carrys out self-application to monitoring and controlling unit 222 to execute
The instruction of program or operating system.For the user, no matter it is to feel graphics processor 220 in that one kind
It is always on.
Fig. 4 is the state diagram of the state machine for the monitoring and controlling unit 222 for showing an embodiment according to the present invention.In state
In 410, monitoring and controlling unit 222 monitors the activity of the bus (such as PCI-Express buses) where graphics processor 220 simultaneously
Screen the activity about graphics processor 220.If not showing relevant activity, then state 410, monitoring and controlling unit are returned to
222 continue to monitor the activity of the bus where graphics processor 220.In state 420, monitoring and controlling unit 222 can perform following
Function：(a) estimate period standby time (idling time period) T of graphics processor 220idle；(b) at control pattern
It manages the burst of device 220 and sufficient amount of display data is written to video frame buffer 244, it is sufficient in estimated period standby time
Between carry out panel automatically update；(c) control pattern processor 220 enters low power state.
In state 430, monitoring and controlling unit 220 monitors following situations：(d) display data deficiency event (run-out-of-
Display event) and (e) graphics processing activity (GPU activity), such as started by application program or operating system
Graphics processing activity.When not detecting any event, then state 430 is returned to, monitoring and controlling unit 222 continues to monitor display
The life event of data deficiencies event and graphics processor 220.When detection event occurs, then enter state 440, monitoring and controlling
Wake-up signal is set as high logic state by unit 222, uses and graphics processor 220 is allowed to enter work shape by low power consumpting state
State.If graphics processor 220 is made to enter working condition because of (d) display data deficiency event, then state 420 is returned to.If
So that graphics processor 220 is entered working condition because of the life event of (e) graphics processor 220, then enters state 450.In shape
State 450, graphics processor 220 can wakeup time (such as：300 milliseconds) within start to process by application program or operating system
The graphics processing activity started.
Fig. 5 is the flow chart for showing the method for managing power supply of an embodiment according to the present invention.In step S500, monitoring and controlling
Unit 222 monitors multiple bus activities of the bus where graphics processor 220, and by being filtered and figure in bus activity
Manage the corresponding multiple graphics processing activities of device 220.In step S510, monitoring and controlling unit 222 is according to such graphics processing activity
Estimate period standby time of graphics processor 220.In step S520, monitoring and controlling unit 222 controls the graphics processor
Multiple images are written to a video frame buffer of the sequence controller in burst, use and the sequence controller is allowed to be enough to leave unused at this
Such image that graphics processor 220 is written is played in time cycle in display device 250 to automatically update to carry out panel.
Though, the range that however, it is not to limit the invention disclosed above with preferred embodiment of the invention, any this field
Technical staff, without departing from the spirit and scope of the present invention, when can do a little change and retouching, therefore the protection of the present invention
Range is when subject to scope of the appended claims institute defender.
Claims (7)
1. a kind of power-supply management system, including：
One display device；
One graphics processor；
Time schedule controller；And
One monitoring and controlling unit, to monitor multiple bus activities of the bus where the graphics processor, and by multiple
Multiple graphics processing activities corresponding with the graphics processor are filtered in bus activity；
Wherein the monitoring and controlling unit also estimates a week standby time of the graphics processor according to multiple graphics processing activity
Phase, and control the graphics processor and be in a low power consumpting state within period standby time；
Wherein the monitoring and controlling unit also controls graphics processor timing and happens suddenly in the wakeup time in a period 1
The video frame buffer in multiple images to the sequence controller is written, and divides such graphics processing activity to group and arranges again
Row, and control the graphics processor in the wakeup time and handle such graphics processing activity, it uses and makes the sequence controller sufficient
To play multiple images that the graphics processor is written in the display device to carry out panel within period standby time
It automatically updates, wherein the period 1 includes period standby time and the wakeup time, and the wakeup time is idle less than this
Time cycle,
Wherein the monitoring and controlling unit sends out a wake-up signal to the graphics processor according to multiple graphics processing activity, uses
It allows the graphics processor to enter a working condition and multiple images is written to the video frame buffer to happen suddenly,
Wherein when the graphics processor enters the working condition, which also controls the graphics processor with one first
Operating frequency is operated in the working condition, and wherein first operating frequency is above the predetermined operation frequency of the working condition
Rate.
2. power-supply management system according to claim 1, wherein the monitoring and controlling unit also judge to be stored in the video frame
Whether multiple images in buffer carry out panel for the sequence controller in period standby time enough automatically updates；
Wherein when multiple images being stored in the video frame buffer were insufficient to for the sequence controller in the standby time
It carries out panel in period to automatically update, which also forces to transmit the wake-up signal to the graphics processor, uses
The graphics processor is allowed to enter a working condition.
3. power-supply management system according to claim 1, wherein the monitoring and controlling unit also judge multiple graphics process
Whether activity is started by an application program or an operating system；
When multiple graphics processing activity is started by the application program or the operating system, which also forces
The wake-up signal is transmitted to the graphics processor, uses and the graphics processor is allowed to enter a working condition.
4. a kind of power-supply management system, including：
One display device；
One graphics processor, including a monitoring and controlling unit, to monitor the multiple total of the bus where the graphics processor
Line activity, and by filtering multiple graphics processing activities corresponding with the graphics processor in multiple bus activity；And
Time schedule controller；
Wherein the monitoring and controlling unit also estimates a week standby time of the graphics processor according to multiple graphics processing activity
Phase, and control the graphics processor and be in a low power consumpting state within period standby time；
Wherein the monitoring and controlling unit also controls graphics processor timing and happens suddenly in the wakeup time in a period 1
Multiple images are written to a video frame buffer, and divides such graphics processing activity to group and rearranges, and in the wake-up
Between middle control graphics processor handle such graphics processing activity, use and the sequence controller allowed to be enough within the standby time
Multiple images that the graphics processor is written are played in the display device to automatically update to carry out panel, wherein this first week
Phase includes period standby time and the wakeup time, and the wakeup time is less than period standby time,
Wherein the monitoring and controlling unit sends out a wake-up signal to the graphics processor according to multiple graphics processing activity, uses
It allows the graphics processor to enter a working condition and multiple images is written to the video frame buffer to happen suddenly；And at the figure
It manages device and enters the working condition, which also controls the graphics processor with one first operating frequency in the work shape
State is operated, and wherein first operating frequency is higher than a predetermined operation frequencies of the working condition.
5. power-supply management system according to claim 4, wherein the monitoring and controlling unit also judge to be stored in the video frame
Whether multiple images in buffer carry out panel for the sequence controller in period standby time enough automatically updates；
Wherein when multiple images being stored in the video frame buffer were insufficient to for the sequence controller in the standby time
It carries out panel in period to automatically update, which also forces to transmit the wake-up signal to the graphics processor, uses
The graphics processor is allowed to enter a working condition.
6. power-supply management system according to claim 4, wherein the monitoring and controlling unit also judge multiple graphics process
Whether activity is started by an application program or an operating system；
When multiple graphics processing activity is started by the application program or the operating system, which also forces
The wake-up signal is transmitted to the graphics processor, uses and the graphics processor is allowed to enter a working condition.
7. a kind of method for managing power supply, is used for a power-supply management system, which includes a graphics processor, a prison
Surveying control unit, time schedule controller and a display device, this method includes：
Multiple bus activities of the bus where the graphics processor are monitored using the monitoring and controlling unit, and by multiple total
Multiple graphics processing activities corresponding with the graphics processor are filtered in line activity；
Period standby time of the graphics processor is estimated according to multiple graphics processing activity using the monitoring and controlling unit；
And
Graphics processor timing is controlled using the monitoring and controlling unit happen suddenly in a wakeup time in a period 1 write
Enter multiple images to a video frame buffer of the sequence controller, and divide such graphics processing activity to group and rearrange,
And control the graphics processor in the wakeup time and handle such graphics processing activity, it uses and the sequence controller is allowed to be enough
It is automatic to carry out panel that in the display device multiple images that the graphics processor is written are played in period standby time
Update, the wherein period 1 include period standby time and the wakeup time, and the wakeup time is less than the standby time
Period,
A wake-up signal is sent out to the graphics processor according to multiple graphics processing activity using the monitoring and controlling unit, is used
It allows the graphics processor to enter a working condition and multiple images is written to the video frame buffer to happen suddenly,
When the graphics processor enters the working condition, control the graphics processor using the monitoring and controlling unit grasps with one first
Working frequency is operated in the working condition, and wherein first operating frequency is above the predetermined operation frequency of the working condition
Rate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510997277.0A CN105446458B (en) | 2012-08-22 | 2012-08-22 | Power-supply management system and method for managing power supply |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210301890.0A CN103631357B (en) | 2012-08-22 | 2012-08-22 | Power-supply management system and method for managing power supply |
| CN201510997277.0A CN105446458B (en) | 2012-08-22 | 2012-08-22 | Power-supply management system and method for managing power supply |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210301890.0A Division CN103631357B (en) | 2012-08-22 | 2012-08-22 | Power-supply management system and method for managing power supply |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105446458A CN105446458A (en) | 2016-03-30 |
| CN105446458B true CN105446458B (en) | 2018-09-04 |
Family
ID=50212532
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510997277.0A Active CN105446458B (en) | 2012-08-22 | 2012-08-22 | Power-supply management system and method for managing power supply |
| CN201210301890.0A Active CN103631357B (en) | 2012-08-22 | 2012-08-22 | Power-supply management system and method for managing power supply |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210301890.0A Active CN103631357B (en) | 2012-08-22 | 2012-08-22 | Power-supply management system and method for managing power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN105446458B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106155263B (en) * | 2015-04-14 | 2021-07-20 | 华为技术有限公司 | Parameter adjusting method and device |
| CN105629843A (en) * | 2016-03-30 | 2016-06-01 | 辽宁开普医疗系统有限公司 | Control system enabling medical X-ray product to realize system sleep energy conservation |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101149640A (en) * | 2006-10-31 | 2008-03-26 | 威盛电子股份有限公司 | Systems and methods for low-power computer operation |
| CN103593040A (en) * | 2012-08-17 | 2014-02-19 | 宏碁股份有限公司 | Power management system and power management method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7698579B2 (en) * | 2006-08-03 | 2010-04-13 | Apple Inc. | Multiplexed graphics architecture for graphics power management |
| JP2009289193A (en) * | 2008-05-30 | 2009-12-10 | Toshiba Corp | Information processing apparatus |
| US8274501B2 (en) * | 2008-11-18 | 2012-09-25 | Intel Corporation | Techniques to control self refresh display functionality |
| CN102143318B (en) * | 2011-01-21 | 2016-08-17 | 广东中星电子有限公司 | A kind of generation method and device of video file |
-
2012
- 2012-08-22 CN CN201510997277.0A patent/CN105446458B/en active Active
- 2012-08-22 CN CN201210301890.0A patent/CN103631357B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101149640A (en) * | 2006-10-31 | 2008-03-26 | 威盛电子股份有限公司 | Systems and methods for low-power computer operation |
| CN103593040A (en) * | 2012-08-17 | 2014-02-19 | 宏碁股份有限公司 | Power management system and power management method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103631357B (en) | 2016-11-23 |
| CN105446458A (en) | 2016-03-30 |
| CN103631357A (en) | 2014-03-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105607725B (en) | Power-supply management system and method for managing power supply | |
| US9092220B2 (en) | Method and apparatus to optimize system battery-life while preventing disruptive user experience during system suspend | |
| TWI552136B (en) | Techniques to control of self refresh display functionality | |
| TWI463301B (en) | Control of platform power consumption using selective updating of a display image | |
| US9256265B2 (en) | Method and system for artificially and dynamically limiting the framerate of a graphics processing unit | |
| US6510525B1 (en) | Method and apparatus to power up an integrated device from a low power state | |
| TWI492210B (en) | Receiving device, video refresh rate control method, device and system | |
| US8963863B2 (en) | Computer, display card, display device and method for updating display information | |
| US8907960B2 (en) | Computer, monitor and computer display method | |
| US20070285428A1 (en) | Self-refreshing display controller for a display device in a computational unit | |
| KR100910683B1 (en) | Method and system for providing artifact-free transitions between dual display controllers | |
| WO2018196430A1 (en) | Method and apparatus for implementing low-power-consumption always-on display of information | |
| RU2011113545A (en) | TECHNOLOGIES FOR MANAGING THE USE OF POWER ENERGY | |
| CN116420185A (en) | Fault-free GPU switching at multiplexer | |
| CN105446458B (en) | Power-supply management system and method for managing power supply | |
| CN106569573B (en) | Display method and device, display control method and device, and equipment | |
| TWI488034B (en) | Power management system and power management method | |
| TWI510908B (en) | Power management system and power management method | |
| WO2007112021A2 (en) | Self-refreshing display controller for a display device in a computational unit | |
| CN103914347A (en) | Processing system and associated method | |
| CN112527227A (en) | Dynamic sleep of display panel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |