CN101895974A - Control method and system for operating mode of wireless network card - Google Patents
Control method and system for operating mode of wireless network card Download PDFInfo
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Abstract
The invention discloses a control method and a control system for the operating mode of a wireless network card, and relates to power consumption technology of the wireless network card. In the system, a user behavior analysis module performs merge operation on input events recorded by an application program agent module, determines a characteristic vector group corresponding to the input events after the merge operation and transmits the determined characteristic vector group to a network card mode prediction module; and the network card mode prediction module judges whether a network data flow mode corresponding to the received characteristic vector group is searched by a DTW algorithm, selects the operating mode of the wireless network card according to the searched network data flow mode if the network data flow mode is searched and if the network data flow mode is not searched, determines and saves the correspondence between the received characteristic vector group and the network data flow mode by the DTW algorithm according to statistical data information recorded by the network data flow agent module. Through the technical scheme of the invention, the operating mode of the wireless network card can be reasonably scheduled, so that low power consumption and low delay of the wireless network card are ensured.
Description
Technical field
The present invention relates to the control method and the system of a kind of power consumption technology of wireless network card, particularly a kind of operating mode of wireless network card.
Background technology
The develop rapidly of wireless network and mobile device provides an available network environment whenever and wherever possible for people.Moved the interactive application software that a large amount of use wireless network cards communicates on the existing mobile device, for example web application such as Email and browser.Interactive application is finished calculation task according to user's request usually, so its behavior is subjected to the influence of user behavior.The use of interactive application on mobile device further increased the power consumption of mobile device.Mobile device uses the power supply power supply usually, and the existing power supply technology can't satisfy the power consumption demand of mobile device.Gap between the power consumption of battery capacity and electronic equipment increases day by day, and therefore energy-conservation is the inevitable demand of mobile computing and general fit calculation development, is the important criteria of mobile device software and hardware design.
Radio communication is one of requisite technology of mobile device, yet consumes big energy usually in the process of Wireless Telecom Equipment transmitting and receiving data.Existing studies show that, the power consumption of wireless network card accounts for 10% of high-end mobile device, and often can reach 50% on low side devices.Therefore wireless network card is the energy-conservation critical component of mobile device, and the power consumption that reduces wireless network card is significant for prolonging the mobile device stand-by time.
Varied at the wireless network card Research on energy saving, in order to reduce power consumption, the standard power-economizing method that can adopt the IEEE802.11 agreement to provide.The operator scheme of IEEE802.11 acquiescence is that (Continuous Aware Mode, CAM), wireless network card is in higher-energy state to lasting listen mode always under the CAM pattern, transmits and receive data at any time, can guarantee minimum delay and maximum throughput.(whether Power Save Mode, PSM) timing wake-up network interface card monitor has the transmission request to the energy saver mode that IEEE802.11 provides, if having data to transmit then enter the high-energy pattern, otherwise gets back to sleep pattern, and PSM can reduce system energy consumption effectively.But existing evaluation result shows, with network interface card static be set under any state all can't balanced flexibly power consumption and performance two aspect targets: CAM pattern power consumption expense is bigger, and the PSM pattern may increase operating lag and influences application performance.
Dynamic energy-saving (BSD, Bounded SlowDown) method combines the advantage of CAM and PSM, finishes the transmission of high band wide data in the CAM pattern, is arranged on the PSM pattern after the end of transmission to save energy.The BSD method is to MAC (Media Access Control, media interviews control) improvement of layer power management mechanism, purpose is under the prerequisite that as far as possible reduces power consumption, RTT (the Round-Trip Time that will cause by PSM, round-trip delay) time-delay is controlled in the given scope, and this given scope is controlled by parameter p.In this agreement, parameter p is actually a compromise point of power consumption and delay, and the value of p is big more, and power consumption is more little, postpones big more; The value of p is more little, and power consumption is big more, postpones more little.This agreement is for fear of the transmission delay that is caused by PSM, after network interface card sends data, no matter whether the free time all keeps reviving higher-energy state in preset time always, during this period of time, change sleep over to, dynamic subsequently listen for beacons frame, rather than each beacon interval all can be revived.The shortcoming of BSD method is not utilize the information of application program, so its conservative energy-saving scheme energy-saving effect is limited, and the BSD method need revise the IEEE802.11b agreement, for specific implementation has been brought difficulty.
Than the dynamic energy-saving technology of bottom, the dynamic energy saving method of application driven has utilized the information of application program to the network operating position, can better meet the performance and the power consumption demand of application program.STPM (Self-Tuning Power Mangement) is a kind of system-level dynamic energy-saving scheme, infers following network data flow according to the clue that application program provides, and has both reduced the power consumption of system, has guaranteed the delay performance of application program again.But the STPM method is not suitable for the interactive application of the request type that comprises user's think time, and needs terminal use's the assistance and the modification of application programs.
The target of wireless network card energy-saving scheme is the balance that realizes between power consumption and the performance, normally in transmission course network interface card is arranged on the high-energy pattern, at one's leisure network interface card is arranged on low-power consumption mode.A key issue in the energy-saving scheme is exactly when to switch network card status and in the required lasting time of corresponding state.Existing a lot of Predicting Technique is better to the compute-intensive applications effect, but adopt the method for handling compute-intensive applications to come the interactive application of processing delay sensitivity, do not consider and utilize the characteristic of interactive application fully, the power consumption that tends to reduce the performance of interactive program even can increase interactive application.
Summary of the invention
Technical problem to be solved by this invention is, a kind of control method and system of operating mode of wireless network card is provided, with the application performance that solves existing wireless network card and the equalization problem between the power consumption.
In order to address the above problem, the invention discloses a kind of control system of operating mode of wireless network card, comprise the network data flow proxy module, this wireless network card also comprises Application Agent module, user behavior analysis module and network interface card model prediction module, wherein:
Described network data flow proxy module is used to collect and write down the statistical information of network behavior;
Described Application Agent module is used to catch the incoming event of initiating with recording user, and wherein, described incoming event comprises mouse event and KeyEvent;
Described user behavior analysis module, be used for the incoming event that described Application Agent module is write down is carried out union operation, determine the pairing characteristic vector group of incoming event behind the union operation, and determined characteristic vector group is sent to described network interface card model prediction module;
Described network interface card model prediction module, be used for judging whether to find the network data stream mode of received characteristic vector group correspondence by dynamic time warping (DTW) algorithm, if, then the mode of operation according to the network data flow model selection wireless network card that is found is lasting listen mode or energy saver mode, otherwise by the DTW algorithm, and the statistical information that write down of described network data flow proxy module is determined and is preserved the received characteristic vector group and the corresponding relation of network data stream mode.
Further, in the said system, described user behavior analysis module is carried out union operation to all incoming events that write down in the setting-up time, and described union operation comprises that mouse event cluster, mouse event are eliminated and the merging of incoming event in pairs.
Wherein, described user behavior analysis module according to the characteristic vector of each incoming event of union operation, is determined described characteristic vector group.
Described setting-up time is 100 milliseconds.
Described Application Agent module is used for all incoming events that recording user is initiated.
The invention also discloses a kind of control method of operating mode of wireless network card, comprising:
Catch the incoming event of initiating with recording user, the incoming event that is write down is carried out union operation, determine the pairing characteristic vector group of incoming event behind the union operation, and judge whether to find in this locality the network data stream mode of determined characteristic vector group correspondence by dynamic time warping (DTW) algorithm, if, then the mode of operation according to the network data flow model selection wireless network card that is found is lasting listen mode or energy saver mode, otherwise by the DTW algorithm, and the statistical information of record is determined and is preserved the received characteristic vector group and the corresponding relation of network data stream mode, wherein, described incoming event comprises mouse event and KeyEvent.
Further, in the said method, the incoming event that is write down is carried out union operation to be referred to: all incoming events that write down in the setting-up time are carried out union operation, and described union operation comprises that mouse event cluster, mouse event are eliminated and the merging of incoming event in pairs.
Wherein, determine that the pairing characteristic vector group of incoming event behind the union operation refers to, determine described characteristic vector group according to the characteristic vector of each incoming event of union operation.
Described setting-up time is 100 milliseconds.
The incoming event that recording user is initiated refers to, all incoming events that recording user is initiated.
Technical solution of the present invention can the rational management wireless network card mode of operation, to guarantee wireless network card low-power consumption and low the delay, guarantee the high-performance of wireless network card simultaneously.During especially towards delay-sensitive interactive application scene, adopt technical solution of the present invention to have better effect.
Description of drawings
Fig. 1 is the structural representation of the control system of operating mode of wireless network card provided by the present invention;
Fig. 2 (a) is that the user behavior analysis module is carried out mouse event cluster operation schematic diagram in the system shown in Figure 1;
Fig. 2 (b) is that the user behavior analysis module is carried out to incident union operation schematic diagram in the system shown in Figure 1;
Fig. 2 (c) is the schematic diagram that the user behavior analysis module is carried out one group of incoming event union operation in the system shown in Figure 1;
Fig. 3 is the structural representation between user behavior analysis module and the network interface card model prediction module in the system shown in Figure 1.
Embodiment
Below in conjunction with drawings and the specific embodiments technical scheme of the present invention is described in further detail.
A kind of control system of operating mode of wireless network card can be built in computer system side or wireless network card side, also can be autonomous system, and it is by the control to operating mode of wireless network card, to guarantee the wireless network card low-power consumption, low delay, high-performance.The structure of this system comprises Application Agent module, network data flow proxy module, user behavior analysis module and network interface card model prediction module as shown in Figure 1 at least.
Wherein, Application Agent module: mainly be responsible for catching and writing down incoming event (incoming event refers to that promptly the user sends to the mouse and the KeyEvent of application program);
The record incoming event refers to, generate the record (promptly generating the record of mouse and KeyEvent) of incoming event, the Application Agent module can generate the record of incoming event for all incoming events of being caught respectively, perhaps only is that critical event generates the incoming event record in the incoming event of being caught.
The network data flow proxy module: mainly collect and write down the statistical information of network behavior, the data message of being added up comprises the time of data flow and the byte number of transmission;
The user behavior analysis module is used for the incoming event that the application programs proxy module write down and carries out union operation, determines the pairing characteristic vector group of incoming event behind the union operation, and determined characteristic vector group is sent to network interface card model prediction module;
Particularly, the user behavior analysis module, read the record of the incoming event in the Application Agent module, and with (time interval of this setting-up time is shorter in the setting-up time, for example 100 milliseconds) the incoming event of record carry out union operation, incoming event behind the union operation is thought a user interactions incident, be identified for representing the characteristic vector group of the incoming event (being the user interactions incident) behind the union operation at last, wherein, the record of typical incoming event comprises the type (as mouse event or KeyEvent) of incident, the parameter of the Time And Event of incident etc.The parameter of KeyEvent comprises the pressing and release movement of scan code, keyboard of keyboard, the parameter of mouse event comprise the coordinate position of mouse (x, y), mouse moving, press and release movement.
Above-mentioned union operation refers to, will be on the time very near one group of incoming event of (for example 100 milliseconds in) as a user interactions incident, thereby can be unit (being unit promptly) unified prediction network data flow with the group with the user interactions incident.This is because incoming event not strict coupling on granularity that incoming event that computer system is concerned about and user are concerned about, for example carry out text when input the user, the input granularity that computer system is concerned about is thinner: its is concerned about is pressing and discharging of certain key; And the fineness ratio that the user is concerned about is thicker: the quick often one group of continuous keystroke incoming event of user's operating habit, have a break then, and judge that consequent response occurs.Like this, the department of computer science's difference of user on incoming event is understood of unifying can be violated input and supposes with the causality between the output, because in finishing one group of keystroke input process, adjacent keystroke interval of events is too short, the previous incoming event of possibility also is not able to do in time by system handles and exports the result, and a back incoming event has just begun.Studies show that for the delay of response time less than 50 to 100 milliseconds, the user is normally imperceptible, event packets then to blanking time the keystroke incident less than 100 milliseconds merge, with one group of very approaching on these times incoming event as a user interactions incident and to their network data stream mode unify the prediction.In the union operation process, comprise the merging of mouse event cluster, mouse event elimination and paired incoming event etc.When comprising mouse event in the incoming event that will carry out union operation in the setting-up time, earlier mouse event to be carried out cluster.Particularly, the user behavior analysis module can be utilized the cluster operation of functional unit realization to mouse event, and the mouse click event that is about on the same functional unit is divided in the class.Wherein, functional unit refers to: the user by user interface (being interface mutual between user's homologous ray) pre-defined and restriction with the exchange of software, the usually corresponding fixing function of each interface building block of interactive program, the interface of corresponding same function is formed can think a functional unit.
Three mouse events shown in Fig. 2 (a) for example, be respectively mobile (Move), press (Press) and discharge (Release), parameter according to these three mouse events, the characteristic vector that obtains these three mouse events is as shown in table 1, corresponding same functional unit in the characteristic vector of these three mouse events (promptly all the sign of corresponding functional unit is Button-id2) as can be seen from Table 1, so these three mouse events are same class incidents, need carry out cluster operation.
Table 1 mouse event and characteristic of correspondence vector thereof
Eliminate mouse event and refer to ignore the unconcerned incoming event of user, the unconcerned incoming event of user is typically the mouse moving event.This is because the mouse moving event has two characteristics: the one, and occurrence frequency is high, and many times produces under the unconscious situation of user, very easily the incoming event of interference user real concern; The 2nd, system is exceedingly fast to the response speed of mouse moving event, has exceeded the scope that the user can perception, and in fact its response time do not influence the impression of user's using system, therefore from user's angle, and the machine event that can ignore class moves like mouse.
The merging of incoming event refers in pairs, the incoming event that detecting occurs in pairs, and with its merging.Because most of incident was to occur in pairs when the user imported by keyboard or mouse, for example left mouse button presses and discharges, and the response of the whole click event often that the user pays close attention to, but not single pressing or release event, and individual event is predicted (because the response of previous Event triggered may by a back event interrupt) that can't realize often, therefore, need the employing incident to merge, to avoid the generation of the problems referred to above.Be the result of the merging of paired incoming event in the present embodiment shown in the table 2.
For example the paired KeyEvent shown in Fig. 2 (b) is respectively and presses (Press) and discharge (Release), and these two KeyEvents need merge, and merge into one group (Group 2).Particularly, the group id after the characteristic vector of these two KeyEvents and the merging is as shown in table 2.
Table 2 is the characteristic vector and the amalgamation result table of incoming event in pairs
Be the process that example explanation user behavior analysis module is carried out union operation with one group of KeyEvent shown in Fig. 2 (c) at last, wherein, one group of KeyEvent is respectively Press Alt, Press F, Release Alt and Release F, these four KeyEvents carry out union operation (promptly merging into Group 3), and the user interactions incident of definite this group incoming event correspondence is and knocks Macintosh " Alt+F " behind the union operation.Wherein, the group id after the characteristic vector of these four KeyEvents and the merging is as shown in table 3.
The characteristic vector of one group of KeyEvent of table 3 and amalgamation result table
Network interface card model prediction module, be mainly used in when receiving a characteristic vector group of user behavior analysis module transmission at every turn, judge whether to find the network data stream mode of received characteristic vector group correspondence by dynamic time warping (DTW), if, then the mode of operation according to the network data flow model selection wireless network card that is found is CAM pattern or PSM pattern, otherwise by the DTW algorithm, and the statistical information that write down of network data flow proxy module is determined and is preserved the received characteristic vector group and the corresponding relation of network data stream mode, wherein, can utilize prior art to determine the mode of operation of the wireless network card of different network data stream mode institute corresponding selection.In the present embodiment, the structural relation between network interface card model prediction module and the user behavior analysis module as shown in Figure 3.
Particularly, network interface card model prediction module operation mainly can be divided into DTW training process and DTW identifying.
When network interface card model prediction module receives a characteristic vector group of representing a user interactions action in the DTW training process, if judge this user interactions incident behavior (being network interface card model prediction module finds received characteristic vector group correspondence by the DTW algorithm network data stream mode) of having preserved, then upgrade the identification masterplate, if judge that this user interactions incident is that new user exchanges incident (being network interface card model prediction module does not find received characteristic vector group correspondence by the DTW algorithm network data stream mode), then generate the identification masterplate.
Network interface card model prediction module is in the DTW identifying, calculate characteristic vector group to be identified (being received characteristic vector group) with the similarity between the identification masterplate, from template library, select a masterplate at every turn, if similarity is current the highest, then according to the network behavior model prediction future network pattern of traffic of this masterplate record, otherwise read next masterplate and mate.
Wherein, each identification masterplate of network interface card model prediction module generation comprises the characteristic vector group and the corresponding network data stream mode of representative of consumer alternative events.The identification masterplate can be kept on the hard disk, loads template library behind each application program launching, can reduce the training expense behind each program start.Because different application programs produces different separately user interactions behavior and network data flow usually, therefore can when starting application program at every turn, load corresponding template library and get final product for each application program provides an independent template library.
Introduce the process of said system control operating mode of wireless network card below, by can reach the energy-saving effect of wireless network card to the control of operating mode of wireless network card.
The control system of above-mentioned operating mode of wireless network card is caught the incoming event of initiating with recording user, the incoming event that is write down is carried out union operation, determine the pairing characteristic vector group of incoming event behind the union operation, and judge whether to find in this locality the network data stream mode of determined characteristic vector group correspondence by the DTW algorithm, if, then the mode of operation according to the network data flow model selection wireless network card that is found is lasting listen mode or energy saver mode, otherwise, by the DTW algorithm, and the statistical information of record is determined and is preserved the received characteristic vector group and the corresponding relation of network data stream mode, wherein, incoming event comprises mouse event and KeyEvent.
In the said process, it specifically is that all incoming events that write down in the setting-up time (for example 100 milliseconds) are carried out union operation that the control system of operating mode of wireless network card is carried out union operation to the incoming event that is write down, and union operation can comprise the merging of mouse event cluster, mouse event elimination and paired incoming event etc.
In preferred scheme, all incoming events that the control system of operating mode of wireless network card needs recording user to initiate.
From the foregoing description as can be seen, carried out the analysis of user interactions behavior in the technical solution of the present invention, thereby better understood user's mutual intention,, promptly guaranteed the performance of wireless network card for the network data flow model prediction provides strong foundation.Simultaneously, the DTW algorithm that the present invention adopts quick and precisely, expense is little is realized the prediction of network data stream mode, has therefore guaranteed the wireless network card low-power consumption, the low delay.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (10)
1. the control system of an operating mode of wireless network card is characterized in that, comprises the network data flow proxy module, and this wireless network card also comprises Application Agent module, user behavior analysis module and network interface card model prediction module, wherein:
Described network data flow proxy module is used to collect and write down the statistical information of network behavior;
Described Application Agent module is used to catch the incoming event of initiating with recording user, and wherein, described incoming event comprises mouse event and KeyEvent;
Described user behavior analysis module, be used for the incoming event that described Application Agent module is write down is carried out union operation, determine the pairing characteristic vector group of incoming event behind the union operation, and determined characteristic vector group is sent to described network interface card model prediction module;
Described network interface card model prediction module, be used for judging whether to find the network data stream mode of received characteristic vector group correspondence by dynamic time warping (DTW) algorithm, if, then the mode of operation according to the network data flow model selection wireless network card that is found is lasting listen mode or energy saver mode, otherwise by the DTW algorithm, and the statistical information that write down of described network data flow proxy module is determined and is preserved the received characteristic vector group and the corresponding relation of network data stream mode.
2. the system as claimed in claim 1 is characterized in that,
Described user behavior analysis module is carried out union operation to all incoming events that write down in the setting-up time, and described union operation comprises that mouse event cluster, mouse event are eliminated and the merging of incoming event in pairs.
3. system as claimed in claim 2 is characterized in that,
Described user behavior analysis module according to the characteristic vector of each incoming event of union operation, is determined described characteristic vector group.
4. as claim 2 or 3 described systems, it is characterized in that,
Described setting-up time is 100 milliseconds.
5. as claim 1,2 or 3 described systems, it is characterized in that,
Described Application Agent module is used for all incoming events that recording user is initiated.
6. the control method of an operating mode of wireless network card is characterized in that, this method comprises:
Catch the incoming event of initiating with recording user, the incoming event that is write down is carried out union operation, determine the pairing characteristic vector group of incoming event behind the union operation, and judge whether to find in this locality the network data stream mode of determined characteristic vector group correspondence by dynamic time warping (DTW) algorithm, if, then the mode of operation according to the network data flow model selection wireless network card that is found is lasting listen mode or energy saver mode, otherwise by the DTW algorithm, and the statistical information of record is determined and is preserved the received characteristic vector group and the corresponding relation of network data stream mode, wherein, described incoming event comprises mouse event and KeyEvent.
7. method as claimed in claim 6 is characterized in that,
The incoming event that is write down is carried out union operation to be referred to: all incoming events that write down in the setting-up time are carried out union operation, and described union operation comprises that mouse event cluster, mouse event are eliminated and the merging of incoming event in pairs.
8. method as claimed in claim 7 is characterized in that,
Determine that the pairing characteristic vector group of incoming event behind the union operation refers to, determine described characteristic vector group according to the characteristic vector of each incoming event of union operation.
9. as claim 7 or 8 described methods, it is characterized in that,
Described setting-up time is 100 milliseconds.
10. as claim 6,7 or 8 described methods, it is characterized in that,
The incoming event that recording user is initiated refers to, all incoming events that recording user is initiated.
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| CN101458556A (en) * | 2007-12-14 | 2009-06-17 | 联想(北京)有限公司 | Dynamic control method and device for network card power consumption and connection mode |
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| US6513128B1 (en) * | 1999-11-30 | 2003-01-28 | 3Com Corporation | Network interface card accessible during low power consumption mode |
| CN101106954A (en) * | 2005-01-19 | 2008-01-16 | 农业创制有限公司 | Apparatus for stimulation and artificial insemination of animals |
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