CN101119548B - Electricity-saving control method of electric papers reading device - Google Patents
Electricity-saving control method of electric papers reading device Download PDFInfo
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- CN101119548B CN101119548B CN2007100583147A CN200710058314A CN101119548B CN 101119548 B CN101119548 B CN 101119548B CN 2007100583147 A CN2007100583147 A CN 2007100583147A CN 200710058314 A CN200710058314 A CN 200710058314A CN 101119548 B CN101119548 B CN 101119548B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The present invention discloses a power save control method of the e-paper reading device, belonging to the field of information technology, which includes the following technological characteristics: through establishing a resource state table, a queue statistical table, a strategy table, a system state table and a trigger condition table, the system is capable of exactly judging the current system state and predict the system state switching to the next step, through the strategy table, investigating the strategy obeyed by the system state of the next step, and then through the power schemes provisioning module, the subassembly of the power supply which is capable of being managed independently, controlling the opening and closing of all the circuit or part of the circuit of the subassembly of the power supply which is capable of being managed independently, thereby having an effective power management to the e-paper reading device, and without prejudice to the normal operation at the same time. According to the current state of the system and the strategy obeyed in the next step, the present invention has a dynamic and intellectualized management to the power dissipation of the subassembly of the power supply which is capable of being managed independently and arranged in the e-paper reading device, fundamentally solving the power dissipation of the e-paper reading device.
Description
Technical field
The invention belongs to areas of information technology, especially a kind of power-saving control method of electric papers reading device.
Background technology
The fast development of Internet technology, changing people's reading method gradually, people are increasing to electronic reading mode, the particularly demand of hand-held reading mode now, therefore on the market various handhold reading devices have appearred, as: electronic reader, personal digital assistant, electronic dictionary, learning machine series products and large-screen mobile phone etc.Handhold reading device uses powered battery usually, and the power consumption, the long-time operate as normal of assurance handhold reading device that how to reduce handhold reading device are to weigh an important indicator of handhold reading device.For the various demands that satisfy the consumer simultaneously cause the function of handhold reading device more and more, will certainly bring the significantly increase of power consumption thus, its direct result is exactly in use to need to change battery frequently or battery is charged, and causes the inconvenience in the use.For this reason, the manufacturer of handhold reading device adopts low energy-consumption electronic device reducing its power consumption usually, but the power consumption that device reduced of this low-power consumption is very limited.Along with continuous progress in science and technology and development, the device that various power supplys can be managed independently has appearred again on the market, these devices can be under different operating requires, close wherein partial circuit to reduce its power consumption, for example: Electronic Paper is exactly a device that power supply can be managed independently, it not only has good display effect, and has a demonstration memory capability, when information that needs show once power up write on the Electronic Paper after, need not power up this information still can remain on the Electronic Paper for a long time, only that is to say and when refreshing Electronic Paper, need provide electric current, and after refreshing, just need not to provide electric current for it, therefore can close the power supply of Electronic Paper at read state, reach the effect of economize on electricity.Because the These characteristics that Electronic Paper has, therefore occurring a lot on the market is the electric papers reading device of display screen with the Electronic Paper, but, existing electric papers reading device has significant limitation, be that it is merely able to accomplish when static reading information the power supply of Electronic Paper to be controlled and managed, do not control and manage and can manage device independently other power supplys in the electric papers reading device, more not when other operations or task, can manage device independently to the power supply in the Electronic Paper effectively manages, therefore, the power problems of existing electric papers reading device does not still obtain basic solution.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, providing a kind of can carry out power supply control and management to the Electronic Paper in the electric papers reading device, and the device that can manage independently other power supplys in the electric papers reading device carries out power supply control and the management power-saving control method with the electric papers reading device that fundamentally solves its power problems simultaneously.
The present invention solves its technical problem and takes following technical scheme to realize:
A kind of power-saving control method of electric papers reading device, it is characterized in that: its power-saving control method is by setting up resource status table, priority-queue statistic table, Policy Table, system state table, trigger condition table and system mode transition diagram and by comprising what electricity-saving control system that global information acquisition module, power source design ruling module, policy management module, power source design configuration module are formed was realized, the step of its power-saving control method is as follows:
(1). information and standardization that the global information acquisition module is collected in resource status table and the priority-queue statistic table generate integrated system information, and integrated system information and system state table are compared, and confirm current system mode;
(2). the power source design ruling module system mode that prediction will change over to according to current system mode coupling system state transition graph and trigger condition table, and the strategy that will carry out to the system mode that the policy management module inquiry will change over to;
(3). policy management module is inquired about the pairing strategy of the system mode that will change over to from the Policy Table, and the strategy that will inquire offers the power source design configuration module by power source design ruling module;
(4). the strategy that the power source design configuration module provides according to power source design ruling module can be managed assembly independently to power supply and be configured.
And described global information acquisition module is also monitored high preferential satellite information and whether is carried the power source design suggestion, then directly provides this strategy that power source design suggestion is provided to power source design ruling module in this way.
And described policy management module is also monitored high preferential satellite information and whether is carried the power source design suggestion, and the strategy that then this power source design suggestion is provided is increased among the Policy Table in this way.
And described resource status table is made of CPU state, memory usage and active process number.
And described priority-queue statistic table is made of operation queue, hang-up formation and waiting list, and each formation in the above-mentioned formation constitutes by resident task, normal work to do and temporary duty.
And described Policy Table is made of the combinations of states and the pairing strategy thereof of CPU, electronic paper screen, auxilliary display screen, touch-screen and MP3 chip.
And described system state table is made of combination and the pairing system mode thereof that CPU state, memory usage and task queue distribute.
And described trigger condition table is made of all external trigger conditions and pairing policy selection thereof.
And described can to manage to power supply that assembly is configured independently be to adopt intrasystem register to be set and corresponding power supply control pin is realized.
And described electric papers reading device comprises electronic reader, personal digital assistant, electronic dictionary, learning machine series products and large-screen mobile phone.
Advantage of the present invention and good effect are:
1. the present invention is by setting up resource status table, the priority-queue statistic table, the Policy Table, system state table and trigger condition table and by comprising the global information acquisition module, power source design ruling module, policy management module, the power source design configuration module is formed an electricity-saving control system, this electricity-saving control system can accurately be judged current system mode and predict the system mode that next step changes over to, inquire about the strategy that next step system mode that changes over to will carry out and then can manage assembly by the power source design configuration module independently to power supply and dispose accordingly by the Policy Table, the control power supply can be managed the unlatching of whole circuit of assembly or partial circuit independently or close, thereby electric papers reading device is carried out effective power management, also do not influence its operate as normal simultaneously again.The present invention is according to current system mode and next step strategy that will carry out, the circuit that power supply in the control electric papers reading device can be managed independently in the assembly is closed or is opened, but the power consumption to all power supply Management Units of comprising Electronic Paper in the electric papers reading device is carried out dynamically, intellectualized management, thereby the power consumption of electric papers reading device is dropped to minimum, fundamentally solved the power problems of electric papers reading device.
2. policy management module of the present invention can also increase or revise the content among the Policy Table according to the power source design suggestion of the preferential satellite information of height, the dynamic management of implementation strategy table has improved its autgmentability.
Description of drawings
Fig. 1 is a system handles block diagram of the present invention;
Fig. 2 is a system state diagram of the present invention;
Fig. 3 is the front view of electric papers reading device of the present invention;
Fig. 4 is the power consumption schematic diagram that the embodiment of the invention is gathered in real time.
Embodiment
Below in conjunction with accompanying drawing the embodiment of the invention is further described.
Electric papers reading device used in the present invention is can be divided into a plurality of power supplys can manage assembly independently on hardware, guarantees that by hardware designs they can independently carry out power supply control.We can control the power supply status that pin is controlled each assembly by register and corresponding power supply that system is set, promptly utilize different control to make different chips enter different mode of operations, thereby realize that different performance requirements is provided by different power supplys.When system is in different conditions, power supply can be managed assembly independently will carry out different configurations, thereby make system present best performance power consumption ratio.As the display unit in the electric papers reading device---Electronic Paper has the advantages that power down still has the demonstration kept, and electric current promptly only need be provided when clear screen, need not still can keep for a long time under the situation that power supply keeps the attribute of demonstration after refreshing.Therefore, as the relevant control module of the Electronic Paper of display screen, can be used as a power supply and can manage assembly independently and exist, certainly the assembly that also has a plurality of power supplys to manage independently in the electric papers reading device.
The basic principle of the power-saving control method of electric papers reading device is: system infers present system mode according to the situation of cpu resource and queue length, to next stage coming system mode predict.Simultaneously, the hardware resource of system is divided into the power consumption module that a plurality of power supplys can independently be controlled, and each module can provide the consumption patterns of different capacity.Have a Policy Table in system, this strategy group is exactly the feasible combination of different power consumption between each module.And each system mode can same above strategy group be shone upon.
Be that the present invention will be described for example with V8 series HanLin Electron book below:
The assembly that has the following power supply to manage independently in the hardware of V8 HanLin Electron book: CPU, electronic paper screen, auxilliary display screen, touch-screen, MP3 chip.The electricity-saving control system of being made up of global information acquisition module, power source design ruling module, policy management module, power source design configuration module can be managed assembly independently to a plurality of power supplys and control and manage.
System needs to set up resource status table, priority-queue statistic table, Policy Table, system state table, trigger condition table and system mode transition diagram before operation, as described below:
1. set up a resource status table.Registered all resources above the resource status table, comprised CPU state, memory usage and active process number as the index monitoring.Resource status table not only writes down current system resource operating position, can also review the system resource operating position in the certain hour.Resource status table is as shown in Table 1:
Table one
| The index object | The CPU state | RAM utilization rate (%) | Active process quantity (individual) |
| R 1 | ?R 2 | R 3 |
2. set up a priority-queue statistic table.The priority-queue statistic table is made of operation queue, hang-up formation, waiting list, and each formation in the above-mentioned formation constitutes by resident task, normal work to do and temporary duty.Usually all there is operation queue in the system, hangs up formation, these three kinds of formations of waiting list, we increase by one in each formation on this basis three task subitems, it comprises resident task, and normal work to do and temporary duty so just construct 9 task queues as the priority-queue statistic table.The core missions that resident task refers to the critical processes in the system and can not stop; Normal work to do refers to and can be stopped, and revises the task routinely of priority; And temporary duty refers to the minimum task of probability of occurrence.The priority-queue statistic table is as shown in Table 2:
Table two
| Task queue table | Operation task | The hang-up task | Wait task |
| Resident task | T 1 | T 2 | T 3 |
| Normal work to do | T 4 | T 5 | T 6 |
| Temporary duty | T 7 | T 8 | T 9 |
3. set up the Policy Table.At first system hardware is marked off five power supplys and can manage assembly: CPU, electronic paper screen, auxilliary display screen, touch-screen and MP3 chip independently, the combinations of states that each power supply can be managed assembly independently constitutes power supply together and can manage the state table of assembly (temporary table) independently:
| Power supply can be managed assembly independently | State 1 | |
State 3 |
| CPU | Full speed operation | Only processor core is shut down | All shut down |
| Electronic paper screen | NORMAL | SLEEP | STANDBY |
| Auxilliary display screen | Open | Close | |
| Touch-screen | Sampling | Do not sample | |
| The MP3 chip | Play | Do not play | Outage |
The various states that above-mentioned power supply can be managed independently in the state table of assembly constitute the Policy Table, this Policy Table comprises the combinations of states and the pairing strategy thereof of CPU, electronic paper screen, auxilliary display screen, touch-screen and MP3 chip, therefore can constitute the Policy Table by corresponding eight strategies of eight kinds of combinations of states.The Policy Table is as shown in Table 3:
Table three
| The strategy sequence number | CPU | Electronic paper screen | Auxilliary display screen | Touch-screen | The MP3 chip |
| Strategy 1 (P 1) | Full speed operation | NORMAL | Open | Sampling | Play |
| Strategy 2 (P 2) | Full speed operation | NORMAL | Open | Sampling | Stop |
| Strategy 3 (P 3) | Full speed operation | STANDBY | Open | Sampling | Play |
| Strategy 4 (P 4) | Full speed operation | STANDBY | Open | Sampling | Stop |
| Strategy 5 (P 5) | Full speed operation | STANDBY | Close | Do not sample | Play |
| Strategy 6 (P 6) | Full speed operation | STANDBY | Close | Do not sample | Stop |
| Strategy 7 (P 7) | Nuclear is shut down | STANDBY | Close | Do not sample | Stop |
| Strategy 8 (P 8) | All shut down | SLEEP | Close | Do not sample | Outage |
4. set up a system state table.System state table is made of various combination and the pairing system mode thereof that CPU state, memory usage and task queue distribute, and system can distribute according to CPU state, memory usage and task queue and judge current system mode.System state table is as shown in Table 4:
Table four
| Number of state indexes | The CPU state | Memory usage | The active process number | Task queue distributes |
| System mode 1 | Full speed operation | 60％ | ＞10 | Normal work to do is more than resident |
| System mode | ||||
| 2 | Full speed operation | 45％ | ＞9 | Normal work to do is more than resident task |
| System mode 3 | Full speed operation | 50％ | ＞8 | Normal work to do is more than resident task |
| System mode 4 | Full speed operation | 40％ | ＞6 | Normal work to do quantity is similar to resident task |
| System mode 5 | Full speed operation | 35％ | ＞7 | Normal work to do quantity is similar to resident task |
| System mode 6 | Full speed operation | 30％ | ＞5 | Normal work to do occurs |
| System mode 7 | Nuclear is shut down | 5％ | 1 | Has only the resident task operation |
| System mode 8 | All shut down | 8％ | 0 | Has only the resident task operation |
5. set up a trigger condition table.This trigger condition table is made of the combination and the pairing policy selection thereof of all external trigger conditions, and power source design ruling module is predicted the system mode that next stage will change over to according to current system mode and coupling system state transition graph and trigger condition table.The trigger condition table is as shown in Table 5:
Table five
6. set up a system mode transition diagram.The situation that this system mode transition diagram may be changed all system modes shows in the mode of figure, is used to the system mode of judging that current system mode may change over to, as shown in Figure 2.
After system had set up above-mentioned chart, how now illustrate was how to realize of the present inventionly on electric papers reading device, and step is as follows:
1. the global information acquisition module is collected information and the standardization generation integrated system information in resource status table and the priority-queue statistic table, as: obtain a quantized value E
0=(the nuclear stopped status, and 5%, 1}, 1,0,0,0,3,0,0,0, and 0}), integrated system information and system state table are compared, can directly judge according to the nuclear stopped status to be in system mode 7 this moment.
2. power source design ruling module compares according to current system mode and system mode transition diagram, drawing the state that next stage of system mode 7 faces may be system mode 4, system mode 6 or system mode 8, this moment is again according to the trigger condition table, be " 1S does not have the incident generation after closing processor core " as present external event, infer that the next stage system will be transferred to system mode 8, inquire about the strategy that this system mode will be carried out with this system mode to policy management module.
3. policy management module is inquired about the pairing strategy of the system mode that will change over to from the Policy Table, and the result of inquiry is that next stage will implementation strategy 8 (P
8), and the strategy 8 (P that will inquire
8) offer the power source design configuration module by power source design ruling module,
4. the strategy that provides according to power source design ruling module of power source design configuration module can be managed assembly independently to power supply and is configured, and its collocation method is to adopt intrasystem register to be set and corresponding power supply control pin is realized.
Above-mentioned steps is a processing execution routinely.In actual moving process, the global information acquisition module is also monitored high preferential satellite information and whether is carried the power source design suggestion, if the strategy that has then directly provide the suggestion of this power source design to be provided to power source design ruling module, simultaneously policy management module is also monitored high preferential satellite information and whether is carried the power source design suggestion, if having then strategy that this power source design suggestion is provided is increased among the Policy Table.This situation generally is that the operand of current system provides appointment module allocation plan---strategy, and just should carry out the power source design configuration according to named policer this moment.For example: certain resolved document carries power management scheme and sets requirement, then requires to carry out power source design according to this and disposes this strategy.The module allocation plan of this appointment is known as high preferential satellite information, and can only there be an effectively high preferential satellite information any time in system.The special file of additionally resolving when needs can write relevant task configuration file, thereby uses different power management policies when resolving this document.The renewal of Policy Table group also can alternate dynamically, and before arriving in next working point, all strategies can be by mapping and location again, thereby realizes the extensibility of height.
Fig. 4 is the power consumption schematic diagram that actual motion collects, and as can be seen from the figure adopts control method of the present invention can obviously reduce the power consumption of system in different phase.
It is emphasized that; embodiment of the present invention is illustrative; rather than it is determinate; therefore the present invention is not limited to the embodiment described in the embodiment; every other execution modes that drawn by those skilled in the art's technical scheme according to the present invention belong to the scope of protection of the invention equally.
Claims (10)
1. the power-saving control method of an electric papers reading device, it is characterized in that: its power-saving control method is by setting up resource status table, priority-queue statistic table, Policy Table, system state table, trigger condition table and system mode transition diagram and by comprising what electricity-saving control system that global information acquisition module, power source design ruling module, policy management module, power source design configuration module are formed was realized, the step of its power-saving control method is as follows:
(1). information and standardization that the global information acquisition module is collected in resource status table and the priority-queue statistic table generate integrated system information, and integrated system information and system state table are compared, and confirm current system mode;
(2). the power source design ruling module system mode that prediction will change over to according to current system mode coupling system state transition graph and trigger condition table, and the strategy that will carry out to the system mode that the policy management module inquiry will change over to;
(3). policy management module is inquired about the pairing strategy of the system mode that will change over to from the Policy Table, and the strategy that will inquire offers the power source design configuration module by power source design ruling module;
(4). the strategy that the power source design configuration module provides according to power source design ruling module can be managed assembly independently to power supply and be configured.
2. the power-saving control method of electric papers reading device according to claim 1, it is characterized in that: described global information acquisition module is also monitored high preferential satellite information and whether is carried the power source design suggestion, then directly provides this strategy that power source design suggestion is provided to power source design ruling module in this way.
3. the power-saving control method of electric papers reading device according to claim 1, it is characterized in that: described policy management module is also monitored high preferential satellite information and whether is carried the power source design suggestion, and the strategy that then this power source design suggestion is provided is increased among the Policy Table in this way.
4. the power-saving control method of electric papers reading device according to claim 1, it is characterized in that: described resource status table is made of CPU state, memory usage and active process number.
5. the power-saving control method of electric papers reading device according to claim 1, it is characterized in that: described priority-queue statistic table is made of operation queue, hang-up formation and waiting list, and each formation in the above-mentioned formation constitutes by resident task, normal work to do and temporary duty.
6. the power-saving control method of electric papers reading device according to claim 1 is characterized in that: described Policy Table is made of the combinations of states and the pairing strategy thereof of CPU, electronic paper screen, auxilliary display screen, touch-screen and MP3 chip.
7. the power-saving control method of electric papers reading device according to claim 1 is characterized in that: described system state table is made of combination and the pairing system mode thereof that CPU state, memory usage and task queue distribute.
8. the power-saving control method of electric papers reading device according to claim 1, it is characterized in that: described trigger condition table is made of all external trigger conditions and pairing policy selection thereof.
9. the power-saving control method of electric papers reading device according to claim 1 is characterized in that: described can to manage to power supply that assembly is configured independently be to adopt intrasystem register to be set and corresponding power supply control pin is realized.
10. the power-saving control method of electric papers reading device according to claim 1, it is characterized in that: described electric papers reading device comprises electronic reader, personal digital assistant, electronic dictionary, learning machine series products and large-screen mobile phone.
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| CN2697720Y (en) * | 2003-08-29 | 2005-05-04 | 孙亮 | Portable information terminal capable of being used as energy-saving type electronic book |
| US7174194B2 (en) * | 2000-10-24 | 2007-02-06 | Texas Instruments Incorporated | Temperature field controlled scheduling for processing systems |
| CN2904088Y (en) * | 2006-02-06 | 2007-05-23 | 精元电脑股份有限公司 | Keying state display for wireless keyboard |
| CN1980427A (en) * | 2005-11-30 | 2007-06-13 | 中兴通讯股份有限公司 | Device for mobile terminal to automatically deleting information, and method thereof |
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2007
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7174194B2 (en) * | 2000-10-24 | 2007-02-06 | Texas Instruments Incorporated | Temperature field controlled scheduling for processing systems |
| CN2697720Y (en) * | 2003-08-29 | 2005-05-04 | 孙亮 | Portable information terminal capable of being used as energy-saving type electronic book |
| CN1980427A (en) * | 2005-11-30 | 2007-06-13 | 中兴通讯股份有限公司 | Device for mobile terminal to automatically deleting information, and method thereof |
| CN2904088Y (en) * | 2006-02-06 | 2007-05-23 | 精元电脑股份有限公司 | Keying state display for wireless keyboard |
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