CN103729284A - Method and device for recording service life of computer fan - Google Patents

Abstract

The invention discloses a method and a device for recording service life of a computer fan, and relates to computer technology. The method includes that an EC (embedded controller) sends a first record start signal, used for recording a working state of the fan at a current rotating speed, to a BIOS (basic input/output system); the BIOS records the current rotating speed of the fan and time start of the current rotating speed according to the first record start signal; when the rotating speed of the computer fan changes, the EC sends a second record start signal, used for recording a working state of the fan at the changed rotating speed, to the BIOS; after receiving the second record start signal, the BIOS records the changed rotating speed of the fan and time start during rotating speed changing; the BIOS calculates service life of the fan under the current rotating speed according to the time start of the current rotating speed, the time start during rotating speed changing and the current rotating speed, and accumulates the service life into fan service life acquired previously. By the method and the device, real service life of the computer fan can be acquired.

Description

Method and the device in a kind of logger computer fan serviceable life

Technical field

The present invention relates to field of computer technology, particularly method and the relevant apparatus in a kind of logger computer fan serviceable life.

Background technology

After computing machine dispatches from the factory, how long fan has moved on earth, that is to say, how to obtain the true serviceable life of every fan, the way not had at present.

User guarantees to keep in good repair machine, just with the invoice time, determines whether to arrive and reports for repairment the time.Such as: a computing machine guarantee period is decided to be 1 year, but in fact has following three kinds of typical users:

(1) user opens computing machine every day, computer system high capacity all the time operation;

(2) user opens computing machine every day, and computer system load running is steady;

(3) user seldom opens computing machine, and the running load of computer system is not high yet.

Visible, subscriber computer has following deficiency according to the method for invoice Time Calculation shelf-life:

(1) subscriber computer is roughly estimated the working time of fan with the invoice time, can not obtain the true serviceable life of computer fan;

(2) user, when buying computing machine, can only take computing machine apart, observes fan behaviour in service and dust stratification degree, roughly determine computer fan service time, this mode human factor impact is larger, quite inaccurate, can not know the true serviceable life of this computer fan.

Summary of the invention

The object of the present invention is to provide a kind of logger computer fan method and the device in serviceable life, can solve better the computer fan computational problem in true serviceable life.

According to an aspect of the present invention, provide a kind of logger computer fan method in serviceable life, having comprised:

EC to BIOS send for record fan under current rotating speed duty first record enabling signal;

BIOS records enabling signal according to described first, records the start time of the current rotating speed of fan and current rotating speed;

When rotation speed of computer fan changes, EC to BIOS send for record fan under rotating speed changes duty second record enabling signal;

BIOS receives that described second records after enabling signal, the start time when rotation speed of the fan after record changes and rotating speed change;

Start time, described current rotating speed when BIOS changes according to the start time of described current rotating speed, described rotating speed, calculate the serviceable life of fan under current rotating speed, and will be added to described serviceable life in the fan serviceable life front obtaining;

Wherein, EC is embedded controller, and BIOS is Basic Input or Output System (BIOS).

Preferably, when EC control rotation speed of computer fan is adjusted to current rotating speed, to BIOS, sends described first and record enabling signal.

Preferably, BIOS receives that described first records after enabling signal, by sending the first request signal to fan control chip, obtains and record the start time of current rotation speed of the fan and current rotating speed.

Preferably, BIOS receives that described second records after enabling signal, by sending the second request signal to fan control chip, and the start time when obtaining and recording rotation speed of the fan after change and rotating speed and changing.

Preferably, the step in the serviceable life of described calculating fan under current rotating speed comprises:

Start time when BIOS utilizes the start time of described current rotating speed and described rotating speed to change, calculates the work duration of described fan under current rotating speed;

According to described current rotating speed, determine corresponding rotation speed of the fan saturation value;

Described work duration and described rotation speed of the fan saturation value are multiplied each other, obtain the serviceable life of fan under current rotating speed.

Preferably, described rotation speed of the fan saturation value increases with the increase of rotation speed of the fan.

Preferably, also comprise:

BIOS receives that described second records after enabling signal, is recorded in the computer booting life-span under current rotating speed, and the described computer booting life-span was added in the computer booting life-span front obtaining.

Preferably, BIOS utilizes time tag counter read signal, obtains and be recorded in the computer booting life-span under current rotating speed.

According to a further aspect in the invention, provide a kind of logger computer fan device in serviceable life, having comprised:

EC signal transmitting unit, for to BIOS, send for record fan under current rotating speed duty first record enabling signal, and when rotation speed of computer fan changes, EC to BIOS send for record fan under rotating speed changes duty second record enabling signal;

BIOS record cell, for recording enabling signal according to described first, records the start time of the current rotating speed of fan and current rotating speed, and is receiving that described second records after enabling signal, the start time when rotation speed of the fan after record changes and rotating speed change;

BIOS computing unit, start time, described current rotating speed while being used for changing according to the start time of described current rotating speed, described rotating speed, calculate the serviceable life of fan under current rotating speed, and will be added to described serviceable life in the fan serviceable life front obtaining;

Wherein, EC is embedded controller, and BIOS is Basic Input or Output System (BIOS).

Preferably, BIOS record cell also, for receiving that described second records after enabling signal, is recorded in the computer booting life-span under current rotating speed, for BIOS computing unit, the described computer booting life-span is added in the computer booting life-span front obtaining.

Compared with prior art, beneficial effect of the present invention is:

The present invention can obtain computer fan serviceable life exactly, for determining that the computer fan shelf-life further provides foundation.

Accompanying drawing explanation

Fig. 1 is the logger computer fan provided by the invention Method And Principle block diagram in serviceable life;

Fig. 2 is computer fan running speed time diagram in the embodiment of the present invention provide 19 hours;

Fig. 3 is the logger computer fan provided by the invention device block diagram in serviceable life.

Embodiment

Below in conjunction with accompanying drawing, to a preferred embodiment of the present invention will be described in detail, should be appreciated that following illustrated preferred embodiment, only for description and interpretation the present invention, is not intended to limit the present invention.

Fig. 1 is the logger computer fan provided by the invention Method And Principle block diagram in serviceable life, as shown in Figure 1,

Step S101, embedded controller (Embedded Controller, EC) to Basic Input or Output System (BIOS) (Basic Input/Output System, BIOS) send for record fan under current rotating speed duty first record enabling signal.Specifically, when EC control rotation speed of computer fan is adjusted to current rotating speed, to BIOS, sends described first and record enabling signal.

In computer system, except by battery and the complete removal of Adapter, EC opens all the time, no matter starts shooting or off-mode.Take notebook computer as example, it is undertaking the tasks such as built-in computer keyboard, touch pad, battery intelligent management of charging and discharging, monitoring temperature, the adjustment of control rotation speed of the fan, has the Flash of the certain capacity for storing EC code in it.

BIOS is one group and is cured in computing machine the program on a rom chip on mainboard, be mainly computing machine provide the bottom, the most direct hardware setting and control.

Step S102:BIOS records enabling signal according to described first, records the start time of the current rotating speed of fan and current rotating speed.Specifically, BIOS receives that described first records after enabling signal, by sending the first request signal to fan control chip, obtains and record the start time of described current rotation speed of the fan and current rotating speed.

Step S103: when rotation speed of computer fan changes, EC to BIOS send for record fan under rotating speed changes duty second record enabling signal.Specifically, when EC controls computing machine from the current adjustment of rotational speed of fan to other rotating speed, to BIOS, send described second and record enabling signal.

Step S104:BIOS receives that described second records after enabling signal, the start time when rotation speed of the fan after record changes and rotating speed change.

Specifically, BIOS receives that described second records after enabling signal, by sending the second request signal to fan control chip, and the start time when obtaining and recording rotation speed of the fan after described change and rotating speed and changing.

Further, BIOS receives that described second records after enabling signal, can also be recorded in the computer booting life-span under current rotating speed.Specifically, BIOS utilizes time tag counter read signal, obtains and be recorded in the computer booting life-span under current rotating speed.

Start time, described current rotating speed when step S105:BIOS changes according to the start time of described current rotating speed, described rotating speed, calculate the serviceable life of fan under current rotating speed, and will be added to described serviceable life in the fan serviceable life front obtaining.

Specifically, start time when BIOS utilizes the start time of described current rotating speed and described rotating speed to change, calculates the work duration of described fan under current rotating speed; According to described current rotating speed, determine corresponding rotation speed of the fan saturation value; Described work duration and described rotation speed of the fan saturation value are multiplied each other, obtain the serviceable life of fan under current rotating speed.

Wherein, described rotation speed of the fan saturation value increases with the increase of rotation speed of the fan.For example, for open the client that computing machine and computer system are high capacity operation all the time everyday, while calculating fan serviceable life, rotation speed of the fan saturation value can be set as to 1.0 and calculate, take 1.0 as coefficient, calculate; For open computing machine and computer system load running client stably everyday, while calculating fan serviceable life, rotation speed of the fan saturation value can be set as to 0.8 and calculate, take 0.8 as coefficient, calculate; For little unlatching computing machine and the not high client of computer system load, while calculating fan serviceable life, rotation speed of the fan saturation value can be set as to 0.6 and calculate, take 0.6 as coefficient, calculate.

Further, BIOS can also be added to the described computer booting life-span in the computer booting life-span front obtaining, and obtains computing machine true serviceable life.

In addition, can also further set the fan periodic maintenance cycle, when fan reaches maintenance period, occur in time fan notification mechanisms, for example, can stop fan operation, reminding user is safeguarded etc.The described fan periodic maintenance cycle can be determined as follows:

Subscriber computer or calculate the shelf-life with invoice time reference, or using true start life-span of reality as the shelf-life, wherein any one arrives first, just determines that the fan periodic maintenance cycle arrives, i.e. fan shelf-life arrival.

Take notebook computer as example, in this computer design of machine, by EC, be responsible for controlling adjustment rotation speed of computer fan.

When EC attempt to open, when closing or adjusting rotation speed of the fan, EC notice BIOS record the current rotating speed of notebook computer fan now, described current rotating speed start time, truly start shooting the life-span.When this shut down of computer of machine, dormancy or need to again adjust rotation speed of the fan time, start time when EC notifies BIOS to record the current rotating speed of fan now, described rotating speed to change again, truly start shooting the life-span, then BIOS can calculate the actual life of fan, and is written in BIOS ROM.These data can be constantly along with continuous cumulative calculation of notebook computer on time, and is presented in BIOS starting up picture and BIOS SETUP.

Further, at notebook computer still in when unloading phase, EC can send software message and interrupt (Software Message Interrupt, SMI), the signal level of this operation by hardware changes and realizes, then BIOS in SMI code, record the current rotating speed of fan now, described current rotating speed start time, truly start shooting the life-span.

Further, at notebook computer during in the OS stage, EC can send software control and interrupt (Software control Interrupt, SCI), then BIOS ACPI code sends SMI, BIOS in SMI code, record the current rotating speed of fan now, described current rotating speed start time, truly start shooting the life-span.

For fan serviceable life:

Obtaining after rotation speed of the fan, can determine rotation speed of the fan saturation value according to rotation speed of the fan, wherein, rotation speed of the fan saturation is as follows:

$\mathrm{FanFactor}\left(s_i\right)=\left\{\begin{array}{cc}1,& s_i=S_{\max }\\ a,& S_{\mathrm{normal}}\&le;s_i<S_{\max }\\ b,& S_{\min }\&le;s_i<S_{\mathrm{normal}}\\ 0,& 0\end{array}\right.$

Wherein, s _irotation speed of the fan, S _minfan minimum speed, S _normalfan rated speed, S _maxbe fan maximum (top) speed, rotation speed of the fan saturation value meets 0<b<a<1.

Suppose S _min=1000 revs/min, S _normal=1500 revs/min, S _max=2000 revs/min, b=0.6, a=0.8, the fan continuous operation of a certain notebook computer 19 hours, its running speed time diagram is as shown in Figure 2.

The rotation speed of the fan variation time difference that fan FanLifeTime in true serviceable life equals different time sections and corresponding time period rotation speed of the fan saturation value product with.Specifically see following formula:

$\mathrm{FanLifeTime}=\underset{i=1}{\overset{n}{\mathrm{\&Sigma;}}}{\mathrm{\&Delta;t}}_i\&times;\mathrm{FanFactor}\left(S_i\right)=\underset{i=1}{\overset{n}{\mathrm{\&Sigma;}}}(t_{i+1}-t_i)\&times;\mathrm{FanFactor}\left(s_i\right)$

Wherein, t _ithe initial time of current rotation speed of the fan, t _i+1the end time (initial time while being rotation speed of the fan variation) of current rotation speed of the fan, S _iit is current rotation speed of the fan.

At t ₂in the moment, rotation speed of the fan is by s ₁=0 is adjusted to s ₂=S _min=1000 revs/min, according to FanFactor (s _i) and s ₁, can determine FanFactor (s ₁)=0, therefore, at t ₁to t ₂in period, rotation speed of the fan s ₁under fan serviceable life be Δ t ₁* FanFactor (s ₁)=(t ₂-t ₁) * FanFactor (s ₁the * of)=(10-5) FanFactor (0)=5*0=0 hour;

At t ₃in the moment, rotation speed of the fan is by s ₂=S _min=1000 revs/min are adjusted to s ₃=S _normal=1500 revs/min, according to FanFactor (s _i) and s ₂, can determine FanFactor (s ₂)=0.6, therefore, at t ₂to t ₃in period, rotation speed of the fan s ₂under fan serviceable life be Δ t ₂* FanFactor (s ₂)=(t ₃-t ₂) * FanFactor (s ₂the * of)=(15-10) FanFactor (1000)=5*0.6=3 hour;

At t ₄in the moment, rotation speed of the fan is by s ₃=S _normal=1500 revs/min are adjusted to s ₄=S _max=2000 revs/min, according to FanFactor (s _i) and s ₃, can determine FanFactor (s ₃)=0.8, therefore, at t ₃to t ₄in period, rotation speed of the fan s ₃under fan serviceable life be Δ t ₃* FanFactor (s ₃)=(t ₄-t ₃) * FanFactor (s ₃the * of)=(20-15) FanFactor (1500)=5*0.8=4 hour;

At t ₅in the moment, rotation speed of the fan is by s ₄=S _max=2000 revs/min are adjusted to s ₅=S _normal=1500 revs/min, according to FanFactor (s _i) and s ₄, can determine FanFactor (s ₄)=1, therefore, at t ₄to t ₅in period, rotation speed of the fan s ₄under fan serviceable life be Δ t ₄* FanFactor (s ₄)=(t ₅-t ₄) * FanFactor (s ₄the * of)=(22-20) FanFactor (2000)=2*1=2 hour;

At t ₆in the moment, rotation speed of the fan is by s ₅=S _normal=1500 revs/min are adjusted to s ₆=S _min=1000 revs/min, according to FanFactor (s _i) and s ₅, can determine FanFactor (s ₅)=0.8, therefore, at t ₅to t ₆in period, rotation speed of the fan s ₅under fan serviceable life be Δ t ₅* FanFactor (s ₅)=(t ₆-t ₅) * FanFactor (s ₅the * of)=(24-22) FanFactor (1500)=2*0.8=1.6 hour;

Visible, in 19 hours of the fan continuous operation of this notebook computer, true serviceable life=the FanLifeTime=0+3+4+2+1.6=10.6 hour of fan, if but do not consider that rotation speed of the fan saturation value is interior, fan serviceable life is 24-5=19 hour, obviously these data are too coarse, and do not meet the true ruuning situation of fan.

For the true start life-span:

BIOS is respectively at t ₂, t ₃, t ₄, t ₅, t ₆moment, utilize time tag counter read signal (for example RDTSC instruction), obtain and be recorded in the computer booting life-span under corresponding rotating speed, and the described computer booting life-span was added in the computer booting life-span front obtaining.Like this, BIOS demonstrates the time used of current notebook computer starting up or in BIOSSETUP, is convenient to user and maintenance personal's inquiry.

Fig. 3 is the embodiment of the present invention device block diagram in logger computer fan serviceable life of providing, as shown in Figure 3, comprises EC signal transmitting unit, BIOS record cell, BIOS computing unit, wherein:

Described EC signal transmitting unit, for to BIOS, send for record fan under current rotating speed duty first record enabling signal, and when rotation speed of computer fan changes, EC to BIOS send for record fan under rotating speed changes duty second record enabling signal.

Described BIOS record cell, for recording enabling signal according to described first, records the start time of the current rotating speed of fan and current rotating speed, and is receiving that described second records after enabling signal, the start time when rotation speed of the fan after record changes and rotating speed change.

Described BIOS computing unit, start time, described current rotating speed while being used for changing according to the start time of described current rotating speed, described rotating speed, calculate the serviceable life of fan under current rotating speed, and will be added to described serviceable life in the fan serviceable life front obtaining.

When EC control rotation speed of computer fan is adjusted to current rotating speed, described EC signal transmitting unit to BIOS send for record fan under current rotating speed duty first record enabling signal, described BIOS record cell receives that described first records after enabling signal, by sending the first request signal to fan control chip, obtain the start time that records the current rotating speed of fan and current rotating speed.When rotation speed of computer fan changes, described EC signal transmitting unit to BIOS send for record fan under rotating speed changes duty second record enabling signal, BIOS receives that described second records after enabling signal, by sending the second request signal to fan control chip, the start time when obtaining and recording rotation speed of the fan after change and rotating speed and changing.Start time when BIOS computing unit utilizes the start time of described current rotating speed and described rotating speed to change, calculate the work duration of described fan under current rotating speed, and according to described current rotating speed, determine corresponding rotation speed of the fan saturation value, then described work duration and described rotation speed of the fan saturation value are multiplied each other, obtain the serviceable life of fan under current rotating speed, be finally added to described serviceable life in the fan serviceable life front obtaining, be written in BIOSROM.

Further, described BIOS record cell also, for receiving that described second records after enabling signal, is recorded in the computer booting life-span under current rotating speed.Described BIOS computing unit also for being added to the described computer booting life-span in the computer booting life-span front obtaining.Specifically, described BIOS record cell is receiving that described second records after enabling signal, utilize time tag counter read signal, obtain and be recorded in the computer booting life-span under current rotating speed, then, described BIOS computing unit by the described computer booting life-span be added front obtaining and write computer booting life-span in BIOS ROM, can constantly update into this opening computer service time.

In sum, the present invention can accurately obtain the fan serviceable life of computing machine and start shooting service time.

Although above the present invention is had been described in detail, the invention is not restricted to this, those skilled in the art of the present technique can carry out various modifications according to principle of the present invention.Therefore, all modifications of doing according to the principle of the invention, all should be understood to fall into protection scope of the present invention.

Claims (10)

1. the method in logger computer fan serviceable life, is characterized in that, comprising:

EC to BIOS send for record fan under current rotating speed duty first record enabling signal;

BIOS records enabling signal according to described first, records the start time of the current rotating speed of fan and current rotating speed;

When rotation speed of computer fan changes, EC to BIOS send for record fan under rotating speed changes duty second record enabling signal;

BIOS receives that described second records after enabling signal, the start time when rotation speed of the fan after record changes and rotating speed change;

Start time, described current rotating speed when BIOS changes according to the start time of described current rotating speed, described rotating speed, calculate the serviceable life of fan under current rotating speed, and will be added to described serviceable life in the fan serviceable life front obtaining;

Wherein, EC is embedded controller, and BIOS is Basic Input or Output System (BIOS).

2. method according to claim 1, is characterized in that, when EC control rotation speed of computer fan is adjusted to current rotating speed, sends described first record enabling signal to BIOS.

3. method according to claim 1, is characterized in that, BIOS receives that described first records after enabling signal, by sending the first request signal to fan control chip, obtains and record the start time of current rotation speed of the fan and current rotating speed.

4. method according to claim 1, is characterized in that, BIOS receives that described second records after enabling signal, by sending the second request signal to fan control chip, and the start time when obtaining and recording rotation speed of the fan after change and rotating speed and changing.

5. according to the method described in claim 1-4 any one, it is characterized in that, the step in the serviceable life of described calculating fan under current rotating speed comprises:

Start time when BIOS utilizes the start time of described current rotating speed and described rotating speed to change, calculates the work duration of described fan under current rotating speed;

According to described current rotating speed, determine corresponding rotation speed of the fan saturation value;

Described work duration and described rotation speed of the fan saturation value are multiplied each other, obtain the serviceable life of fan under current rotating speed.

6. method according to claim 5, is characterized in that, described rotation speed of the fan saturation value increases with the increase of rotation speed of the fan.

7. according to the method described in claim 1-4 any one, it is characterized in that, also comprise:

BIOS receives that described second records after enabling signal, is recorded in the computer booting life-span under current rotating speed, and the described computer booting life-span was added in the computer booting life-span front obtaining.

8. method according to claim 7, is characterized in that, BIOS utilizes time tag counter read signal, obtains and be recorded in the computer booting life-span under current rotating speed.

9. the device in logger computer fan serviceable life, is characterized in that, comprising:

EC signal transmitting unit, for to BIOS, send for record fan under current rotating speed duty first record enabling signal, and when rotation speed of computer fan changes, EC to BIOS send for record fan under rotating speed changes duty second record enabling signal;

BIOS record cell, for recording enabling signal according to described first, records the start time of the current rotating speed of fan and current rotating speed, and is receiving that described second records after enabling signal, the start time when rotation speed of the fan after record changes and rotating speed change;

BIOS computing unit, start time, described current rotating speed while being used for changing according to the start time of described current rotating speed, described rotating speed, calculate the serviceable life of fan under current rotating speed, and will be added to described serviceable life in the fan serviceable life front obtaining;

Wherein, EC is embedded controller, and BIOS is Basic Input or Output System (BIOS).

10. device according to claim 9, it is characterized in that, BIOS record cell is also for receiving that described second records after enabling signal, be recorded in the computer booting life-span under current rotating speed, for BIOS computing unit, the described computer booting life-span be added in the computer booting life-span front obtaining.

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