CN104121213B - Control method for fan and system - Google Patents
Control method for fan and system Download PDFInfo
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- CN104121213B CN104121213B CN201310145649.8A CN201310145649A CN104121213B CN 104121213 B CN104121213 B CN 104121213B CN 201310145649 A CN201310145649 A CN 201310145649A CN 104121213 B CN104121213 B CN 104121213B
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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
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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Abstract
The invention provides a kind of control method for fan and system, described method comprises: preset the reliable temperature that hard disk runs; Set up and the one-to-one relationship of storage hard disk mean temperature and rotation speed of the fan and hard disk temperature are greater than reliable temperature time temperature and the corresponding relation of rotation speed of the fan; Read the true temperature of multiple hard disk; The true temperature of the multiple hard disks read is compared with the reliable temperature that respectively this hard disk runs preset successively, when the temperature without hard disk is greater than the reliable temperature of hard disk operation, calculate the mean temperature of hard disk, search the rotation speed of the fan corresponding to this mean temperature prestored and export control signal to adjust the rotating speed of described fan to fan; When there being the temperature of hard disk to be greater than the reliable temperature of hard disk operation, the rotation speed of the fan corresponding to temperature searching this hard disk prestored exports control signal to adjust the rotating speed of described fan to fan.The present invention can improve hard disk reliability well, reduce the power consumption of fan and the noise of system.
Description
Technical field
The present invention relates to one and the present invention relates to bulk memory technical field, particularly to the control field of the fan that storage is lowered the temperature, be specially a kind of control method for fan and system.
Background technique
Along with the development of network, the performance as the server of the network equipment is constantly improved, and more and more abundanter along with Internet resources, the requirement being specifically designed to the storage that data store also improves constantly.In these servers, storage is the equipment being used as network data storage specially; usually can be equipped on server to use together; because need to be arranged on together with server in frame; outward appearance and the server of storage are quite similar; there is cabinet; the front end of cabinet has a front panel, when certain cabinet is arranged in frame, before be exposed to frame front end for user's operation.The most important parts of storage are exactly hard disk, the storage capacity of a storage, how many hard disks of namely can planting, and are the most important technical orders of storage, and in general, the more storage of storage capacity can provide more powerful data access function.
But, when the hard disk quantity in storage is enough large, Temperature numerical for hard disk operational must especially be paid attention to, this is because each hard disk is when carrying out data access operation, and its internal electronic element all can heat up, and then form temperature superimposition effect between many hard disks, this is for storage, especially comprises the storage of extensive hard disk array, and its heat sinking function is in the face of very acid test.
General mass-storage system is primarily of some storage mediums 2.5 "/3.5 " hard disk or solid state hard disc, some cooling fans, power supply and control panel composition.Air flow at present based on fan is the most frequently used method cooling the storage of extensive hard disk array, along with the continuous expansion of memory span, the power consumption of storage is in continuous increase, correspondingly need the fan of more epistasis energy to provide enough air quantity to guarantee that it normally works, and 3 powers of the power consumption of fan and rotation speed of the fan are directly proportional.
In order to the storage capacity increasing per unit volume improves the competitive ability of product, need to configure hard disk quantity as much as possible, cooling fan needs to provide sufficient air quantity to make hard disk operational at reliable temperature (50C) below to guarantee that hard disk is normally operated in certain environment temperature, as 0 ~+40C simultaneously.Common is guarantee that in system, whole hard disk operational is below respective temperature limiting based on ambient temperature adjustment rotation speed of the fan to the heat management of storage, and do not consider the hard disk power consumption difference that dissimilar hard disk and hard disk bring under different operating state, so just may cause the supercooling of mass-storage system, not only waste the power consumption of fan and working life but also increased the noise of system.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the present invention is to provide a kind of control method for fan and system, controls not only to waste the power consumption of fan and working life for solving in prior art but also increases the problems such as storage noise the temperature of storage.
For achieving the above object and other relevant objects, the invention provides a kind of control method for fan, be applied to have multiple hard disk and correspondence respectively this hard disk carry out in the electronic equipment of the multiple fans cooled, described control method for fan comprises the following steps:
Preset the reliable temperature that hard disk runs;
Set up and the corresponding relation of the one-to-one relationship of storage hard disk mean temperature and rotation speed of the fan and the temperature set up when also storage hard disk temperature is greater than reliable temperature and rotation speed of the fan;
Read the true temperature of multiple hard disk;
The true temperature of the multiple hard disks read is compared with the reliable temperature that respectively this hard disk runs preset successively, judges whether that the temperature of hard disk is greater than the reliable temperature of hard disk operation, if without, export the first judged result, if having, export the second judged result;
When receiving the first judged result, calculating the mean temperature of hard disk, searching the rotation speed of the fan corresponding to this mean temperature prestored and exporting control signal to adjust the rotating speed of described fan to described fan; When receiving the second judged result, the rotation speed of the fan corresponding to temperature searching this hard disk prestored exports control signal to adjust the rotating speed of described fan to described fan.
Preferably, also comprise for described fan arranges the step of initial speed.
Preferably, when setting up the one-to-one relationship of also storage hard disk mean temperature and rotation speed of the fan, preset the minimum value of a hard disk mean temperature, lower than the minimum value of described hard disk mean temperature hard disk temperature corresponding to rotation speed of the fan be 30% of fan maximum (top) speed.
Preferably, set up and storage hard disk temperature is greater than reliable temperature time the corresponding relation of temperature with rotation speed of the fan time, the maximum (top) speed of hard disk temperature correspondence fan.
Preferably, when receiving the second judged result, controlling rotation speed of the fan according to pid control algorithm increases, gradually until reach the maximum (top) speed of fan; Described pid control algorithm is: rotation speed of the fan (k)=rotation speed of the fan (k-1)+Kp × (T (k)-T (k-1)+Ki × (T (k)-50+Kd × (T (k)-2 × T (k-1)+T (k-2)); Wherein, k is time state parameter, rotation speed of the fan (k) is k moment rotation speed of the fan, rotation speed of the fan (k-1) is k-1 moment rotation speed of the fan, T (k), T (k-1), T (k-2) are respectively the mean temperature of k moment, k-1 moment, k-2 moment hard disk, and Kp, Ki, Kd are respectively scaling factor, integral coefficient, differential coefficient.
The present invention is also providing a kind of fan control system in addition on the one hand, be applied to have multiple hard disk and correspondence respectively this hard disk carry out in the electronic equipment of the multiple fans cooled, described fan control system comprises: multiple temperature transducer, corresponding multiple described hard disk is arranged respectively, for detecting the true temperature of corresponding respectively this hard disk; Temperature reading unit, has multiple I/O port, the true temperature be connected for reading the hard disk that described temperature transducer detects with multiple temperature transducer respectively; Reliable temperature presets unit, for the reliable temperature that default hard disk runs; Storage unit, prestores for setting up and the first contingency table of the one-to-one relationship of storage hard disk mean temperature and rotation speed of the fan, and the second contingency table of the corresponding relation of the temperature set up when also storage hard disk temperature is greater than reliable temperature and rotation speed of the fan; Temperature comparison judgment unit, preset unit with temperature reading unit and reliable temperature to be connected, the true temperature of the multiple hard disks read is compared with the reliable temperature of respectively this hard disk preset successively, judge whether that the true temperature of hard disk is greater than the reliable temperature of hard disk operation, if without, export the first judged result, if having, export the second judged result; Mean temperature computing unit, when receiving the first judged result, extracting the true temperature of all hard disks of calculating and calculating mean temperature; Output control unit, when receiving the first judged result, obtain mean temperature from described mean temperature computing unit, and the rotation speed of the fan searched in described first contingency table corresponding to this mean temperature exports control signal to adjust the rotating speed of described fan to described fan; When receiving the second judged result, the rotation speed of the fan corresponding to temperature searching this hard disk in described second contingency table exports control signal to adjust the rotating speed of described fan to described fan.
Preferably, also comprise initialization unit, for described fan arranges initial speed.
Preferably, in described first contingency table, be preset with the minimum value of a hard disk mean temperature, lower than the minimum value of described hard disk mean temperature hard disk temperature corresponding to rotation speed of the fan be 30% of fan maximum (top) speed.
Preferably, the rotation speed of the fan in described second contingency table corresponding to hard disk temperature is the maximum (top) speed of fan.
Preferably, described output control unit is when receiving the second judged result, and controlling current rotation speed of the fan according to pid control algorithm increases gradually, until reach the maximum (top) speed of fan; Described pid control algorithm is: rotation speed of the fan (k)=rotation speed of the fan (k-1)+Kp × (T (k)-T (k-1)+Ki × (T (k)-50+Kd × (T (k)-2 × T (k-1)+T (k-2)); Wherein, k is time state parameter, rotation speed of the fan (k) is k moment rotation speed of the fan, rotation speed of the fan (k-1) is k-1 moment rotation speed of the fan, T (k), T (k-1), T (k-2) are respectively the mean temperature of k moment, k-1 moment, k-2 moment hard disk, and Kp, Ki, Kd are respectively scaling factor, integral coefficient, differential coefficient.
As mentioned above, control method for fan of the present invention and system, have following beneficial effect:
The reliable temperature that the present invention runs by presetting hard disk, in can well balance power consumption and the storage noise of hard disk reliability and fan.In addition, the life-span of storage can also be improved, but also decrease storage and run the electric power energy consumed, improve working efficiency, also improve memory performance simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of fan control system of the present invention.
Figure 2 shows that in fan control system of the present invention, the one-to-one relationship schematic diagram of hard disk mean temperature and rotation speed of the fan set up by first contingency table according to linear control method.
Figure 3 shows that the schematic flow sheet of fan controlling method of the present invention.
Element numbers explanation
Embodiment
Now by the detailed example illustrated in alterations with reference to the present invention.To the greatest extent its may, all graphic middle by according to identical element numbers to represent same or similar parts.
When and when reading with each alterations, can the detailed description of better understanding preferable example of the present invention.But should be appreciated that the present invention is not limited to painted accurate row and puts mode and apparatus.In addition, will recognize to illustrate simple and clear, be shown in graphic in assembly might not according to scale.Such as, in order to details in clear display figure, the size of some assembly may be amplified to some extent relative to other assemblies.
In order to the storage capacity increasing per unit volume improves the competitive ability of product, need to configure hard disk quantity as much as possible, cooling fan needs to provide sufficient air quantity to make hard disk operational at reliable temperature (50C) below to guarantee that hard disk is normally operated in certain environment temperature, as 0 ~+40C simultaneously.Common is guarantee that in system, whole hard disk operational is below respective temperature limiting based on ambient temperature adjustment rotation speed of the fan to the heat management of storage, and do not consider the hard disk power consumption difference that dissimilar hard disk and hard disk bring under different operating state, so just may cause the supercooling of mass-storage system, not only waste the power consumption of fan and working life but also increased the noise of system.
Given this, the object of the present invention is to provide a kind of control method for fan and system, the temperature of storage is controlled not only to waste the power consumption of fan and working life for solving in prior art but also increases the problems such as storage noise.To principle and the mode of execution of a kind of control method for fan of the present invention and system be elaborated below, and make those skilled in the art not need creative work can understand a kind of control method for fan of the present invention and system.
Refer to Fig. 1, be shown as the structural representation of fan control system of the present invention.As shown in Figure 1, the invention provides a kind of fan control system, be applied to have multiple hard disk 2 and correspondence respectively this hard disk 2 carry out in the electronic equipment of the multiple fans 3 cooled, particularly, described fan control system 1 comprises: temperature transducer 11, temperature reading unit 12, reliable temperature preset unit 14, storage unit 13, temperature comparison judgment unit 15, mean temperature computing unit 16 and output control unit 17.
Below described fan control system 1 is described in detail.
Described temperature transducer 11 is for detecting the true temperature of corresponding respectively this hard disk 2.The quantity of described temperature transducer 11 is multiple, and the quantity of described temperature transducer 11 is equal with the quantity of described hard disk 2, multiple described temperature transducer 11 respectively corresponding multiple described hard disk 2 is arranged, and is equivalent at the corresponding temperature transducer 11 of each hard disk 2.
Described temperature transducer 11 can adopt SMD temperature transducer, be attached to the surface of described hard disk 2, in addition, described temperature transducer 11 also can adopt other form to gather the temperature of described hard disk 2, such as, be arranged on the temperature that described hard disk 2 is responded on described hard disk 2 side.All temperature transducers realizing gathering hard disk 2 temperature all can be used for the present invention.
Except described temperature transducer 11, temperature reading unit 12, reliable temperature are preset unit 14, storage unit 13, temperature comparison judgment unit 15, mean temperature computing unit 16 and output control unit 17 and can be arranged in the controller.Reliable temperature is preset unit 14, storage unit 13, temperature comparison judgment unit 15, mean temperature computing unit 16 and also can be realized by the software program of upper-position unit.
Described temperature reading unit 12 has multiple I/O port, the true temperature be connected for reading the hard disk 2 that described temperature transducer 11 detects with multiple temperature transducer 11 respectively.Described temperature reading unit 12 also can read the true temperature of the hard disk 2 that described temperature transducer 11 detects successively by a serial ports.
Described reliable temperature presets the reliable temperature that unit 14 runs for default hard disk 2.Particularly, under this reliable temperature must can guarantee that hard disk 2 can normally be operated in certain environment temperature, such as 0 ~ 40 degree Celsius, the explanation of the concrete environmentally temperature of this reliable temperature and reference hard disk 2 shop instructions sets.In the present embodiment, this reliable temperature should be a concrete numerical value, instead of a scope, and such as reliable temperature is 50 DEG C.
Described storage unit 13 prestores for setting up and the first contingency table of the one-to-one relationship of storage hard disk mean temperature and rotation speed of the fan, and the second contingency table of the corresponding relation of the temperature set up when also storage hard disk temperature is greater than reliable temperature and rotation speed of the fan.
Described first contingency table and described second contingency table can be a two-dimensional polling list.That is described first contingency table (two-dimensional polling list) can have two fields, and wherein each row of the first field have noted down hard disk mean temperature, and each row of the second field have noted down this rotation speed of the fan corresponding to hard disk mean temperature; Described second contingency table (two-dimensional polling list) can have two fields, wherein each row of the first field have noted down temperature when hard disk temperature is greater than reliable temperature, and each row of the second field have noted down the rotation speed of the fan corresponding to temperature when this hard disk temperature is greater than reliable temperature.
Particularly, as shown in Figure 2, the one-to-one relationship of hard disk mean temperature and rotation speed of the fan also can be set up in the first contingency table described in the present invention according to linear control method.Such as adopt linear scale function y=5x-180, wherein x is hard disk mean temperature, and y is, and the rotation speed of the fan limiting y accounts for the percentage of fan maximum (top) speed.Again according to the maximum (top) speed of actual fan, determine the concrete rotation speed of the fan should inserted in described first contingency table.The linear scale control function y=ax-b of concrete employing can determine a, b two coefficients according to actual conditions.
In the present embodiment, also it should be noted that, in described first contingency table, be preset with the minimum value of a hard disk mean temperature, lower than the minimum value of described hard disk mean temperature hard disk temperature corresponding to rotation speed of the fan be 30% of fan maximum (top) speed.Namely by being preset with the minimum value of a hard disk mean temperature, when the hard disk temperature of hard disk mean temperature lower than the minimum value of described hard disk mean temperature, corresponding rotation speed of the fan is 30% of fan maximum (top) speed, that is corresponding rotation speed of the fan is a fixed value, instead of along with the reduction of hard disk mean temperature the corresponding rotating speed also reducing described fan.
Meanwhile, in the present embodiment, the rotation speed of the fan in described second contingency table corresponding to hard disk temperature is the maximum (top) speed of fan.That is, when hard disk mean temperature is higher than reliable temperature, fan all runs with maximum (top) speed.
Described temperature comparison judgment unit 15 and temperature reading unit 12 and reliable temperature are preset unit 14 and are connected, the true temperature of the multiple hard disks 2 read is compared with the reliable temperature of respectively this hard disk 2 preset successively, judge whether that the true temperature of hard disk 2 is greater than the reliable temperature of hard disk 2 operation, if without, export the first judged result, if having, export the second judged result.Such as reliable temperature is 50 DEG C, and described temperature comparison judgment unit 15 judges whether that the true temperature of hard disk 2 is greater than 50 DEG C one by one, as long as there is the true temperature of a hard disk 2 to be greater than 50 DEG C, then exports the second judged result.First judged result is delivered in mean temperature computing unit 16 and output control unit 17 by described temperature comparison judgment unit 15, the second judged result is delivered in output control unit 17.
Described mean temperature computing unit 16, when receiving the first judged result (namely representing the reliable temperature not having the true temperature of hard disk 2 to be greater than hard disk 2 operation), extracts the true temperature of all hard disks 2 of calculating and calculates mean temperature.
If when described output control unit 17 receives the first judged result (namely representing the reliable temperature not having the true temperature of hard disk 2 to be greater than hard disk 2 operation), obtain mean temperature from described mean temperature computing unit 16, and the rotation speed of the fan searched in described first contingency table corresponding to this mean temperature exports control signal to adjust the rotating speed of described fan to described fan.
If when described output control unit 17 receives the second judged result, the rotation speed of the fan corresponding to temperature searching this hard disk 2 in described second contingency table exports control signal to adjust the rotating speed of described fan to described fan.
Particularly, described output control unit is when receiving the second judged result, and controlling current rotation speed of the fan according to pid control algorithm increases gradually, until reach the maximum (top) speed of fan.Described pid control algorithm is: rotation speed of the fan (k)=rotation speed of the fan (k-1)+Kp × (T (k)-T (k-1)+Ki × (T (k)-50+Kd × (T (k)-2 × T (k-1)+T (k-2)); Wherein, k is time state parameter, rotation speed of the fan (k) is k moment rotation speed of the fan, rotation speed of the fan (k-1) is k-1 moment rotation speed of the fan, T (k), T (k-1), T (k-2) are respectively the mean temperature of k moment, k-1 moment, k-2 moment hard disk, and Kp, Ki, Kd are respectively scaling factor, integral coefficient, differential coefficient.These three coefficients of Kp, Ki, Kd need according to appointing system thermal property be optimized setting avoid rotation speed of the fan shake and excessive.Kp, Ki, Kd are that those skilled in the art carry out technical parameter usual inside PID regulating and controlling, are not described in detail in this.
In addition, it should be noted that, if the reliable temperature having the temperature of multiple hard disk 2 to be greater than hard disk 2 to run, the rotation speed of the fan of the correspondence prestored by the temperature lookup corresponding to the highest hard disk 2 of temperature in described output control unit 17.
The present invention can also comprise initialization unit, for described fan arranges initial speed.Initial cell can be arranged as required, can not adopt initial cell, and fan initial speed adopts rotating speed when stopping last time.If fan is the fan crossed from off-duty, be that described fan arranges initial speed by initialization unit.
The invention provides the implementation procedure that a kind of control method for fan is also said fans control system 1, be applied to have multiple hard disk 2 and correspondence respectively this hard disk 2 carry out in the electronic equipment of the multiple fans cooled, described control method for fan specifically comprises: preset the reliable temperature that hard disk 2 runs; Set up and the corresponding relation of the one-to-one relationship of storage hard disk 2 mean temperature and rotation speed of the fan and the temperature set up when also storage hard disk 2 temperature is greater than reliable temperature and rotation speed of the fan; Read the true temperature of multiple hard disk 2; The true temperature of the multiple hard disks 2 read is compared with the reliable temperature that respectively this hard disk 2 runs preset successively, judge whether that the temperature of hard disk 2 is greater than the reliable temperature of hard disk 2 operation, if without, export the first judged result, if having, export the second judged result; When receiving the first judged result, calculating the mean temperature of hard disk 2, searching the rotation speed of the fan corresponding to this mean temperature prestored and export control signal to adjust the rotating speed of described fan 3 to described fan 3; When receiving the second judged result, the rotation speed of the fan corresponding to temperature searching this hard disk 2 prestored exports control signal to adjust the rotating speed of described fan 3 to described fan 3.Can also comprise for described fan 3 arranges initial speed.
Set up and the one-to-one relationship of storage hard disk mean temperature and rotation speed of the fan time, the minimum value of a default hard disk mean temperature, lower than the minimum value of described hard disk mean temperature hard disk temperature corresponding to rotation speed of the fan be 30% of fan 3 maximum (top) speed.
Set up and storage hard disk temperature is greater than reliable temperature time temperature and the corresponding relation of rotation speed of the fan time, the rotation speed of the fan corresponding to hard disk temperature is the maximum (top) speed of fan 3.Particularly, when receiving the second judged result, controlling rotation speed of the fan according to pid control algorithm increases, gradually until reach the maximum (top) speed of fan; Described pid control algorithm is: rotation speed of the fan (k)=rotation speed of the fan (k-1)+Kp × (T (k)-T (k-1)+Ki × (T (k)-50+Kd × (T (k)-2 × T (k-1)+T (k-2)); Wherein, k is time state parameter, rotation speed of the fan (k) is k moment rotation speed of the fan, rotation speed of the fan (k-1) is k-1 moment rotation speed of the fan, T (k), T (k-1), T (k-2) are respectively the mean temperature of k moment, k-1 moment, k-2 moment hard disk, and Kp, Ki, Kd are respectively scaling factor, integral coefficient, differential coefficient.
If there is the temperature of multiple hard disk 2 to be greater than the reliable temperature of hard disk 2 operation, the rotation speed of the fan of the correspondence prestored by the temperature lookup corresponding to the hard disk 2 that temperature is the highest.
As shown in Figure 3, being shown as the schematic flow sheet of a kind of control method for fan of the present invention, is also the implementation procedure of said fans control system 1.
S1, presets the reliable temperature that hard disk 2 runs, such as 50 DEG C; Then step S2 is performed.
In step s 2, to set up and the corresponding relation of the one-to-one relationship of storage hard disk mean temperature and rotation speed of the fan and the temperature set up when also storage hard disk temperature is greater than reliable temperature and rotation speed of the fan; Then step S3 is performed.
In step s3, the true temperature of multiple hard disk 2 is read; Then step S4 is performed.
In step s 4 which, judge whether that the temperature of hard disk 2 is greater than the reliable temperature of hard disk 2 operation, if not, then perform step S5, if so, then perform step S7.
In step s 5, the mean temperature of hard disk 2 is calculated; Then step S6 is performed.
In step s 6, search the rotation speed of the fan corresponding to this mean temperature prestored and export control signal to adjust the rotating speed of described fan 3 to described fan 3, terminate.
In the step s 7, the rotation speed of the fan corresponding to temperature searching this hard disk 2 prestored exports control signal to adjust the rotating speed of described fan 3 to described fan 3, terminates.
In sum, control method for fan of the present invention and system, can be solved the problem by the fan control strategy mentioned in the present invention, well balances power consumption and the storage noise of hard disk reliability and fan.In addition, the life-span of storage can also be improved, but also decrease storage and run the electric power energy consumed, improve working efficiency, also improve memory performance simultaneously.
When setting forth representative example of the present invention, operating method of the present invention and/or process may be rendered as the step of a concrete sequence by this specification.But because the method or process not depend on the concrete order of this step herein, thus the method or process should not be restricted to the concrete sequence of this step.Usually know that the knowledgeable should be understood that the step that also can adopt other sequences in technique.Therefore, the concrete order of this step of this specification should not be regarded as being the restriction to claim.In addition, the claim about method of the present invention and/or process should not be restricted to and perform its each step with this order, and person can understand easily to be familiar with technique, and these sequences can change to some extent and still belong in spirit of the present invention and scope.
Person should be understood that under the condition of extensive inventive concept not deviating from above-mentioned example to be familiar with technique, can make change to these examples.Therefore, should be understood that the present invention is not limited only to disclosed instantiation, and be intended to contain belong to define in claims of the present invention the present invention spirit and scope in all modifications.
Claims (10)
1. a control method for fan, be applied to have multiple hard disk and correspondence respectively this hard disk carry out in the electronic equipment of the multiple fans cooled, it is characterized in that, described control method for fan comprises the following steps:
Preset the reliable temperature that hard disk runs;
Set up and the corresponding relation of the one-to-one relationship of storage hard disk mean temperature and rotation speed of the fan and the temperature set up when also storage hard disk temperature is greater than reliable temperature and rotation speed of the fan;
Read the true temperature of multiple hard disk;
The true temperature of the multiple hard disks read is compared with the reliable temperature that respectively this hard disk runs preset successively, judges whether that the temperature of hard disk is greater than the reliable temperature of hard disk operation, if without, export the first judged result, if having, export the second judged result;
When receiving the first judged result, calculating the mean temperature of hard disk, searching the rotation speed of the fan corresponding to this mean temperature prestored and exporting control signal to adjust the rotating speed of described fan to described fan; When receiving the second judged result, searching the rotation speed of the fan corresponding to this hard disk temperature prestored and exporting control signal to adjust the rotating speed of described fan to described fan.
2. control method for fan according to claim 1, is characterized in that: also comprise for described fan arranges the step of initial speed.
3. control method for fan according to claim 1, it is characterized in that: when setting up the one-to-one relationship of also storage hard disk mean temperature and rotation speed of the fan, preset the minimum value of a hard disk mean temperature, lower than the minimum value of described hard disk mean temperature hard disk temperature corresponding to rotation speed of the fan be 30% of fan maximum (top) speed.
4. control method for fan according to claim 1, is characterized in that: set up and storage hard disk temperature is greater than reliable temperature time the corresponding relation of temperature with rotation speed of the fan time, the maximum (top) speed of hard disk temperature correspondence fan.
5. control method for fan according to claim 4, is characterized in that: when receiving the second judged result, and controlling rotation speed of the fan according to pid control algorithm increases, gradually until reach the maximum (top) speed of fan; Described pid control algorithm is: rotation speed of the fan (k)=rotation speed of the fan (k-1)+Kp × (T (k)-T (k-1)+Ki × (T (k)-50+Kd × (T (k)-2 × T (k-1)+T (k-2))); Wherein, k is time state parameter, rotation speed of the fan (k) is k moment rotation speed of the fan, rotation speed of the fan (k-1) is k-1 moment rotation speed of the fan, T (k), T (k-1), T (k-2) are respectively the mean temperature of k moment, k-1 moment, k-2 moment hard disk, and Kp, Ki, Kd are respectively scaling factor, integral coefficient, differential coefficient.
6. a fan control system, be applied to have multiple hard disk and correspondence respectively this hard disk carry out in the electronic equipment of the multiple fans cooled, it is characterized in that, described fan control system comprises:
Multiple temperature transducer, corresponding multiple described hard disk is arranged respectively, for detecting the true temperature of corresponding respectively this hard disk;
Temperature reading unit, has multiple I/O port, the true temperature be connected for reading the hard disk that described temperature transducer detects with multiple temperature transducer respectively;
Reliable temperature presets unit, for the reliable temperature that default hard disk runs;
Storage unit, prestores for setting up and the first contingency table of the one-to-one relationship of storage hard disk mean temperature and rotation speed of the fan, and the second contingency table of the corresponding relation of the temperature set up when also storage hard disk temperature is greater than reliable temperature and rotation speed of the fan;
Temperature comparison judgment unit, preset unit with temperature reading unit and reliable temperature to be connected, the true temperature of the multiple hard disks read is compared with the reliable temperature of respectively this hard disk preset successively, judge whether that the true temperature of hard disk is greater than the reliable temperature of hard disk operation, if without, export the first judged result, if having, export the second judged result;
Mean temperature computing unit, when receiving the first judged result, extracting the true temperature of all hard disks of calculating and calculating mean temperature;
Output control unit, when receiving the first judged result, obtain mean temperature from described mean temperature computing unit, and the rotation speed of the fan searched in described first contingency table corresponding to this mean temperature exports control signal to adjust the rotating speed of described fan to described fan; When receiving the second judged result, the rotation speed of the fan corresponding to temperature searching this hard disk in described second contingency table exports control signal to adjust the rotating speed of described fan to described fan.
7. fan control system according to claim 6, is characterized in that: also comprise initialization unit, for described fan arranges initial speed.
8. fan control system according to claim 6, it is characterized in that: the minimum value being preset with a hard disk mean temperature in described first contingency table, lower than the minimum value of described hard disk mean temperature hard disk temperature corresponding to rotation speed of the fan be 30% of fan maximum (top) speed.
9. fan control system according to claim 7, is characterized in that: the rotation speed of the fan in described second contingency table corresponding to hard disk temperature is the maximum (top) speed of fan.
10. fan control system according to claim 9, is characterized in that: described output control unit is when receiving the second judged result, and controlling current rotation speed of the fan according to pid control algorithm increases gradually, until reach the maximum (top) speed of fan; Described pid control algorithm is: rotation speed of the fan (k)=rotation speed of the fan (k-1)+Kp × (T (k)-T (k-1)+Ki × (T (k)-50+Kd × (T (k)-2 × T (k-1)+T (k-2))); Wherein, k is time state parameter, rotation speed of the fan (k) is k moment rotation speed of the fan, rotation speed of the fan (k-1) is k-1 moment rotation speed of the fan, T (k), T (k-1), T (k-2) are respectively the mean temperature of k moment, k-1 moment, k-2 moment hard disk, and Kp, Ki, Kd are respectively scaling factor, integral coefficient, differential coefficient.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310145649.8A CN104121213B (en) | 2013-04-24 | 2013-04-24 | Control method for fan and system |
Applications Claiming Priority (1)
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| CN106229003B (en) * | 2016-08-31 | 2018-09-18 | 浙江大华技术股份有限公司 | The method and device of radiating fan rotation speed in a kind of adjustment storage device |
| CN106502346A (en) * | 2016-10-17 | 2017-03-15 | 郑州云海信息技术有限公司 | A kind of method and device of server radiating |
| CN106547325B (en) * | 2016-10-26 | 2019-03-26 | 浙江大华技术股份有限公司 | A kind of fan rotational frequency control method and device |
| CN109139524B (en) * | 2017-06-19 | 2022-04-22 | 中兴通讯股份有限公司 | Method and device for regulating speed of fan and storage medium |
| CN107643811A (en) * | 2017-09-26 | 2018-01-30 | 郑州云海信息技术有限公司 | A kind of fan regulation and controlling optimization method based on PID control principle |
| CN108463098B (en) * | 2018-05-02 | 2024-04-12 | 浙江绿色理想科技有限公司 | Computer cabinet heat abstractor |
| CN108953205B (en) * | 2018-06-29 | 2020-06-23 | 深圳市同泰怡信息技术有限公司 | System and method for controlling rotating speed of server fan |
| JP2020020523A (en) * | 2018-07-31 | 2020-02-06 | 山洋電気株式会社 | Fan control device and fan control method |
| CN109240463B (en) * | 2018-09-25 | 2021-02-19 | 联想(北京)有限公司 | Control method and system |
| CN110297531A (en) * | 2019-06-20 | 2019-10-01 | 西安易朴通讯技术有限公司 | A kind of control method for fan, device, electronic equipment and storage medium |
| CN111734668B (en) * | 2020-06-19 | 2022-04-22 | 山东海量信息技术研究院 | Server fan control method, device, equipment and readable storage medium |
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