CN109654053B - Fan control method and system of rack equipment - Google Patents
Fan control method and system of rack equipment Download PDFInfo
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- CN109654053B CN109654053B CN201811416646.2A CN201811416646A CN109654053B CN 109654053 B CN109654053 B CN 109654053B CN 201811416646 A CN201811416646 A CN 201811416646A CN 109654053 B CN109654053 B CN 109654053B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/004—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying driving speed
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/02—Constructional details
- H04Q1/035—Cooling of active equipments, e.g. air ducts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2270/00—Control
- F05D2270/30—Control parameters, e.g. input parameters
- F05D2270/303—Temperature
Abstract
The invention relates to the technical field of communication, in particular to a method and a system for controlling a fan of rack equipment, wherein the method comprises the following steps: when the master control panel is normal, the master control panel acquires the temperature of each service panel to adjust the rotating speed of the fan, and performs information interaction with each service panel in real time to determine a designated service panel; when the master control panel is abnormal, the management authority of the master control panel is taken over by the designated service panel, information interaction is carried out with other service panels, the temperature of each service panel is obtained, the rotating speed of the fan is adjusted, and whether the master control panel is normal or not is monitored in real time; when the main control panel returns to normal, the assigned service panel stops information interaction, and returns the management authority to the main control panel, and the main control panel continues to control the temperature. By the control method, the defect that the fan is directly rotated at full speed or is not controlled when the main control panel is abnormal is effectively overcome, so that the rotating speed of the fan meets the temperature requirement of the rack, the normal work of the system is ensured, the energy is saved, the noise is reduced, and the service life of the fan is prolonged.
Description
[ technical field ] A method for producing a semiconductor device
The present invention relates to the field of communications technologies, and in particular, to a method and a system for controlling a fan of a rack device.
[ background of the invention ]
In a communication system, a rack device is generally composed of a subrack, a backplane, and a plurality of single disks. The single disk can be divided into a power disk, a master control disk, a service disk and the like according to functions. In order to enable the rack equipment to work normally, the requirements of various aspects such as temperature, humidity control, electromagnetic protection and the like need to be strictly considered, so that the rack equipment needs to be designed into a relatively closed structure. The service disk can release a large amount of heat energy when running in the rack, and in order to prevent the functional equipment from being adversely affected by overhigh temperature, the control of the ambient temperature in the rack is a key factor in the first place. Usually, at least one fan is installed at a proper position in the rack, and the fan rotates to draw outwards to take away hot air generated by equipment, so that air flow from an air inlet to the fan output through the equipment is formed; the ambient temperature of the rack is changed by controlling the rotating speed of the fan, the higher the rotating speed of the fan is, the larger the air flow is, the high hot air removal speed is, and the lower the ambient temperature in the rack is.
In a conventional rack, a commonly used temperature control method is to adjust the rotation speed of a fan according to temperature detection, and such devices generally include a temperature detection unit provided on each service disk in the rack, each service disk reports the detected temperature to a master control disk, the master control disk determines the rotation speed of the fan according to the reported highest temperature, and the ambient temperature of the rack is changed according to the rotation speed of the fan. The method has the effects of energy conservation and noise reduction. But when the master control disk is abnormal, for example: under the conditions that the main control panel is not in place or the main control panel is halted and the like, the temperature of each service panel cannot be obtained, the fan is not controlled by the main control panel any more and is always at a constant rotating speed, the rotating speed of the fan cannot be adjusted in real time according to the temperature of the system, and the system heat dissipation has risks; in order to ensure normal heat dissipation of the system, the common practice in the industry is that when the communication between the fan and the main control panel is abnormal, the fan rotates at full speed, and although the method can ensure normal heat dissipation of the system, the method increases energy consumption and noise and shortens the service life of the fan.
In view of the above, it is an urgent problem in the art to overcome the above-mentioned drawbacks of the prior art.
[ summary of the invention ]
The technical problems to be solved by the invention are as follows:
in the temperature control of traditional frame, when the master control appears unusually, the fan is uncontrolled, and the system heat dissipation has the risk, and the direct full rotational speed of fan can make the system heat dissipation normal, but has increased energy consumption and noise, has shortened the life of fan.
The invention achieves the above purpose by the following technical scheme:
in a first aspect, the invention provides a fan control method for rack equipment, wherein when a master control panel normally works, the master control panel acquires the temperature of each service panel to adjust the rotating speed of a fan, performs information interaction with each service panel in real time, and determines the service panel meeting a first preset condition as a first specified service panel; when the master control disk works abnormally, the method comprises the following steps:
the first appointed service panel takes over the management authority of the main control panel, performs information interaction with other service panels, obtains the temperature of each service panel so as to adjust the rotating speed of the fan, and simultaneously monitors whether the main control panel is recovered to be normal or not in real time;
and when the main control panel returns to normal, the first appointed service panel stops information interaction, returns the management authority to the main control panel, and continuously performs information interaction with each service panel by the main control panel to obtain the temperature of each service panel so as to adjust the rotating speed of the fan.
Preferably, the determining the service disk meeting the first preset condition as the first specified service disk specifically includes:
comparing the temperature of each service disk, and determining the service disk with the lowest temperature as a first appointed service disk; or calculating the difference between the temperature of each service disk and the preset dangerous temperature of the corresponding service disk, comparing the obtained differences, and determining the corresponding service disk with the largest difference as the first appointed service disk.
Preferably, the information interaction includes interaction of slot position information corresponding to each service disk and interaction of temperature information corresponding to each service disk; wherein the temperature is a measured temperature or a weighted temperature.
Preferably, when the master control panel normally works, the step of acquiring the temperature of each service panel by the master control panel to adjust the rotating speed of the fan is specifically as follows: reporting the measured temperature of each business disk to the main control disk by each business disk, polling the main control disk at preset time intervals to obtain the measured temperature of each business disk, determining the highest temperature of the measured temperatures by comparison, determining the currently required fan rotating speed according to the highest temperature, and further adjusting the fan rotating speed;
when the master control panel works abnormally, the first appointed service panel takes over the management authority of the master control panel, performs information interaction with other service panels, and obtains the temperature of each service panel so as to adjust the rotating speed of the fan, wherein the management authority of the master control panel is specifically as follows: after the first appointed service panel takes over the management authority of the main control panel, the actually measured temperatures of the service panels are obtained through information interaction, the highest temperature of the actually measured temperatures is determined through comparison, the currently required fan rotating speed is determined according to the highest temperature, and then the fan rotating speed is adjusted.
Preferably, when the master control panel normally works, the master control panel obtains the temperature of each service panel to adjust the rotating speed of the fan, and specifically includes:
taking any service disk as a reference, each service disk performs weighted calculation on the measured temperature of the service disk to obtain the weighted temperature corresponding to each service disk, and reports the weighted temperature to the master control disk;
polling the master control disk at preset time intervals to obtain the weighted temperature of each service disk, determining the current temperature grade of each service disk according to the preset temperature grade and the weighted temperature of each service disk, and further obtaining a temperature grade array;
and according to the pre-stored corresponding relation between the fan rotating speed and the temperature level array, the main control panel determines the currently required fan rotating speed so as to adjust the fan rotating speed.
When the master control panel works abnormally, the first appointed service panel takes over the management authority of the master control panel, performs information interaction with other service panels, obtains the temperature of each service panel and then adjusts the rotating speed of the fan, and the method specifically comprises the following steps:
after the first appointed service disk takes over the management authority of the master control disk, acquiring the weighted temperature of each service disk through information interaction;
according to preset temperature grades and the weighted temperature of each service disk, the first appointed service disk determines the current temperature grade of each service disk so as to obtain a temperature grade array;
and according to the corresponding relation between the pre-stored fan rotating speed and the temperature level array, the first appointed service disk determines the currently required fan rotating speed, and then the fan rotating speed is adjusted.
Preferably, the rack is divided into regions in advance according to the position distribution of each service disk and each fan group in the rack, each region comprises one fan group and at least one service disk, and the temperature of the at least one service disk is controlled by the fan group in the corresponding region;
when the rotating speed of the fan is adjusted, the rotating speed of the fan in the fan group in each area is respectively adjusted according to the pre-divided areas, specifically: and determining the rotating speed of the fan required by each area according to the temperature of each service disk in each area, and further driving the fan group in each area to output the corresponding rotating speed, so as to realize the temperature regulation of the service disks in each area.
Preferably, after the first designated service disk takes over the management authority of the master control disk, when the fan rotation speeds of the fan groups in the respective areas are respectively adjusted according to the pre-divided areas, the fan groups in the area where the first designated service disk is located are subjected to rotation speed adjustment, so as to adjust the temperature of the area, and then the fan groups in other areas are subjected to rotation speed adjustment, so as to adjust the temperatures of other areas.
Preferably, after the first specified service disk takes over the management authority of the master control disk and obtains the temperature of each service disk, the first specified service disk determines the service disk meeting a second preset condition in other service disks as a second specified service disk;
before the master control panel returns to normal, the first specified service panel detects whether the temperature of the first specified service panel reaches a preset threshold value in real time, and when the temperature of the first specified service panel reaches the preset threshold value, the second specified service panel takes over the management authority of the first specified service panel.
Preferably, when the master control panel cannot respond to information interaction of each service panel for n times continuously, the first specified service panel judges that the master control panel is abnormal, and then takes over the management authority of the master control panel; and when the main control panel responds to the information interaction of the first appointed service panel again, the first appointed service panel judges that the main control panel is recovered to be normal, and further the management authority is handed back.
In a second aspect, the present invention further provides a fan control system of rack equipment, configured to implement the fan control method in the first aspect, where the system includes a main control panel, a fan panel, and multiple service panels, each service panel is provided with a temperature detection unit and a simple management control unit, the temperature detection unit is configured to detect a temperature of a corresponding service panel, and the simple management control unit is configured to report temperature information of the corresponding service panel to the main control panel, and control a management authority of the corresponding service panel to take over the main control panel when the main control panel is abnormal in operation;
a management control unit is arranged in the main control panel and used for determining the currently required fan rotating speed according to the temperature of each service panel and transmitting the rotating speed to the fan panel; the fan disc is internally provided with a driving unit and one or more fan groups, and the driving unit is used for driving the fans of the fan groups to output specified rotating speed so as to control the temperature of the service disc.
Compared with the prior art, the invention has the beneficial effects that:
in the fan control method provided by the invention, when the main control panel is normal, the main control panel adjusts the rotating speed of the fan according to the temperature of each service panel, when the main control panel is abnormal, the appointed service panel takes over the fan management to adjust the rotating speed of the fan according to the temperature, and when the main control panel returns to normal, the main control panel returns the management authority of the fan. By the control method, the rotating speed of the fan can be adjusted in real time according to the temperature of each service disk when the main control disk is normal or abnormal, so that the defect that the fan is directly rotated at full speed or is not controlled when the main control disk is abnormal is effectively overcome, the rotating speed of the fan in the system not only meets the temperature requirement of each single disk in the rack, but also ensures the normal work of the system, saves energy, reduces noise and prolongs the service life of the fan.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a block diagram of a fan control system of a rack device according to an embodiment of the present invention;
fig. 2 is a flowchart of a fan control method of rack equipment according to an embodiment of the present invention;
fig. 3 is a flow chart of fan control when the main control panel provided by the embodiment of the present invention is normal;
fig. 4 is a flow chart of fan control when the master control panel is abnormal according to the embodiment of the present invention;
FIG. 5 is a closed-loop flow chart of a fan control method according to an embodiment of the present invention;
fig. 6 is a schematic diagram illustrating region division in rack equipment according to an embodiment of the present invention;
fig. 7 is a flow chart of fan control when the master control panel is normal according to another embodiment of the present invention;
FIG. 8 is a schematic diagram of temperature grading (T) according to an embodiment of the present inventionmax＝100℃)；
FIG. 9 is a schematic diagram of each service disk and temperature level array provided by an embodiment of the present invention;
fig. 10 is a flow chart of fan control when the master control panel is abnormal according to another embodiment of the present invention.
[ detailed description ] embodiments
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other. The invention will be described in detail below with reference to the figures and examples.
Example 1:
the embodiment of the invention provides a fan control method of rack equipment, which can specifically adopt a fan control system shown in figure 1, wherein the fan control system consists of a plurality of single disks, and the single disks can be divided into a power panel, a main control panel, a fan panel and a service panel according to functions. The fan control method may refer to fig. 2, and specifically includes the following steps:
and step 10, when the master control panel normally works, the master control panel acquires the temperature of each service panel to adjust the rotating speed of the fan, performs information interaction with each service panel in real time, and determines the service panel meeting a preset first set condition as a first specified service panel.
The information interaction comprises interaction of slot position information corresponding to each service disk and interaction of temperature information corresponding to each service disk, each service disk corresponds to a slot position number, the service disks can be directly locked through the slot position numbers, and the temperature information is the measured temperature or the weighted temperature of each service disk. In this embodiment, taking measured temperature as an example, when the master control panel normally works, the master control panel interacts slot position information of each service panel to the service panel of each slot position in real time, each service panel reports its own measured temperature to the master control panel in real time, the master control panel polls every preset time to obtain the measured temperature of each service panel, then determines the highest temperature of each measured temperature through comparison, determines the currently required fan rotation speed of the system according to the highest temperature, and transmits the rotation speed to the driving unit in the fan panel, so that the driving unit drives the fan set to output the specified fan rotation speed, thereby implementing temperature control, as shown in fig. 3 specifically. The preset time can be set by a worker according to the actual application requirement, and the shorter the preset time is, the more timely and accurate the temperature control is, for example, the preset time can be set to 10s, 20s, 1min and the like.
The master control disk interacts the slot position information and the temperature information with the service disks in each slot position in real time while controlling the temperature, and determines the service disks meeting the first preset condition as first appointed service disks, so that each service disk obtains the slot position number of the service disk and whether the service disk is the first appointed service disk in the appointed slot position. The determination of the first specified service disk specifically includes: the main control panel determines the service panel with the lowest actual measurement temperature as a first appointed service panel by comparing the actual measurement temperatures of the service panels; or, each service disk corresponds to a preset dangerous temperature, and when the temperature exceeds the preset dangerous temperature, the corresponding service disk is difficult to work normally, the main control disk obtains a difference value between the measured temperature of each service disk and the preset dangerous temperature of the corresponding service disk through calculation, then compares the obtained difference values, and determines the corresponding service disk with the largest difference value as the first specified service disk. The first appointed service disk is selected by the two methods, so that the working time of the first appointed service disk can be ensured to be prolonged as much as possible.
And step 20, when the master control panel works abnormally, the first appointed service panel takes over the management authority of the master control panel, performs information interaction with other service panels, obtains the temperature of each service panel so as to adjust the rotating speed of the fan, and simultaneously monitors whether the master control panel is normal or not in real time.
When the master control disk works normally, the temperature information and the slot position information are always interacted between the master control disk and each service disk in real time, so that each service disk already knows the slot position number of the service disk and whether the service disk is in the designated slot position before the master control disk works abnormally. Therefore, the first designated service disk can be used for monitoring whether the main control disk is abnormal or not, when the main control disk is abnormal, for example, when the main control disk is out of place or crashes, the main control disk loses the external communication capability and cannot respond to the information of each service disk, and when the main control disk cannot respond to the information interaction of each service disk for n times continuously, the first designated service disk judges that the main control disk is abnormal, and then takes over the management authority of the main control disk; the value of n can be determined according to the interaction frequency between the master control disk and each service disk during actual normal operation, and the lower the interaction frequency is, the smaller the value of n needs to be, which takes n as an example in this embodiment to be 3.
The first appointed service disk is used as a temporary main control role after taking over the management authority of the main control disk, temperature information and slot position information are actively interacted with other service disks, the first appointed service disk obtains the actually measured temperature of each service disk through information interaction, then the highest temperature in the actually measured temperatures is determined through comparison, the currently required fan rotating speed of the system is determined according to the highest temperature, the rotating speed is transmitted to a driving unit in the fan disk, the driving unit drives the fan set to output the appointed fan rotating speed, and therefore temperature control is achieved. In particular, refer to fig. 4, where the service disk of the Slot number Slot1 is the first specified service disk.
And step 30, when the main control panel returns to normal, the first appointed service panel stops information interaction, returns the management authority to the main control panel, and continuously performs information interaction with each service panel by the main control panel to obtain the temperature of each service panel so as to adjust the rotating speed of the fan.
And monitoring whether the main control panel is recovered to be normal or not in real time while the first appointed service panel serves as a temporary main control to carry out temperature control, when the main control panel is recovered to be normal, the external communication of the main control panel is recovered, the main control panel can respond to the information interaction of the first appointed service panel, at the moment, the first appointed service panel judges that the main control panel is recovered to be normal, the first appointed service panel does not carry out information interaction with other service panels any more, the management authority is returned to the main control panel, and the temporary main control role is ended. And the main control panel initiates information interaction with each service panel again, acquires the measured temperature of each service panel, and adjusts the rotating speed of the fan according to the highest temperature, thereby realizing temperature control.
In the fan control method provided by the invention, when the main control panel works normally, the main control panel manages the temperature of the rack, when the main control panel is abnormal, the first specified service panel takes over the fan management to adjust the rotating speed of the fan according to the temperature, and when the main control panel returns to be normal, the main control panel returns the management authority of the fan. By the control method, the rotating speed of the fan can be adjusted in real time according to the temperature of each service disk when the main control disk is normal or abnormal, so that the defect that the fan is directly rotated at full speed or is not controlled when the main control disk is abnormal is effectively overcome, the rotating speed of the fan in the system not only meets the temperature requirement of each single disk in the rack, but also ensures the normal work of the system, saves energy, reduces noise and prolongs the service life of the fan.
In the embodiment of the present invention, the fan control method is closed-loop temperature control, as shown in fig. 5, when the main control panel normally works, the main control panel operates according to the flow shown in fig. 3; when the master control disk is abnormal, each service disk judges whether the service disk is a first appointed service disk in an appointed slot position according to the interaction with the master control disk, if the service disk is in the appointed slot position, the operation is carried out according to the flow of the figure 4, and for the service disk of a non-appointed slot position, the information interaction with the first appointed service disk is waited; when the master control panel returns to normal, the first designated service panel returns the management right to the master control panel, and continues to operate according to the flow shown in fig. 3.
With reference to the embodiment of the present invention, there is also a preferred implementation scheme, in step 20, after the first specified service disk takes over the management authority of the master control disk and obtains the temperature of each service disk, the first specified service disk determines, as a second specified service disk, a service disk that meets a second preset condition among other service disks; before the master control panel returns to normal, the first specified service panel detects whether the temperature of the first specified service panel reaches a preset threshold value in real time, and when the temperature of the first specified service panel reaches the preset threshold value, the second specified service panel takes over the management authority of the first specified service panel. This is to consider that, when the temperature of the first specified service disk rises to a certain extent, the first specified service disk is no longer suitable to continue to serve as the temporary master, and at this time, a suitable service disk needs to be replaced to take over the management authority of the first specified service disk. The second specified service disk meeting the second preset condition is specifically: and in other service disks except the first specified service disk, the measured temperature of the second specified service disk is the lowest, or the difference between the measured temperature and the corresponding preset dangerous temperature is the largest. Wherein the preset threshold may be set between 70% and 90% of the preset dangerous temperature of the first specific service disk.
In combination with the embodiment of the present invention, there is also a preferred implementation scheme, where multiple fan groups are disposed in the fan tray, and the rack is divided into regions in advance according to the distribution of the service trays and the fan groups in the rack, where each region includes one fan group and at least one service tray, and the at least one service tray is temperature-controlled by the fan group in the corresponding region. Assuming that there are 16 service disks in the rack, the corresponding Slot numbers are Slot1-Slot16, the fan disks include 4 fan sets, and the arrangement is as shown in fig. 6, the rack may be divided into 4 regions of A, B, C, D, where each region has 4 service disks and 1 fan set. According to fig. 6, when adjusting the fan rotation speed, the fan rotation speed of the fan group in each zone can be adjusted according to the pre-divided zones: and determining the rotating speed of the fan required by each area according to the temperature of each service disk in each area, and further driving the fan group in each area to output the corresponding rotating speed, so as to realize the temperature regulation of the service disks in each area. Under the condition that the first designated service disk takes over the management authority of the master control disk, when the first designated service disk respectively adjusts the fan rotating speeds of the fan groups in the areas according to the pre-divided areas, considering that the first designated service disk has large work load and large heat dissipation capacity, the rotating speed adjustment is preferentially carried out on the fan groups in the area where the first designated service disk is located, so that the temperature of the area is adjusted, and then the rotating speed adjustment is carried out on the fan groups in other areas, so that the temperatures of other areas are adjusted. Taking fig. 6 as an example, since the service disk corresponding to the Slot number Slot1 is the first specified service disk, the rotation speed of the fan group 1 is first adjusted, so as to implement temperature control on the area a, and then the rotation speeds of the other three fan groups are adjusted, so as to implement temperature control on the area B, C, D.
Example 2:
in the above embodiment 1, the temperatures reported by the service disks to the master control disk and interacted among the service disks are measured temperatures, and in another specific embodiment, the temperatures involved may also be weighted temperatures, and now, taking the arrangement situation of the service disks and the fan sets in the rack as shown in fig. 6 as an example, detailed description is given to the application of the weighted temperatures.
In step 10, when the master control panel normally works, the process of the master control panel performing temperature control may refer to fig. 7, and specifically includes the following steps:
and step 101, taking any service disk as a reference, each service disk performs weighted calculation on the measured temperature of the service disk to obtain the weighted temperature corresponding to each service disk, and reports the weighted temperature to the master control disk. Wherein, for the service disk of any Slot i, the corresponding weighted temperature TiThe calculation method comprises the following steps:
wherein, Ti' is the measured temperature value, T, of the service disk Slot iimaxFor a preset hazard temperature, T, of the service disk Slot imaxAnd presetting dangerous temperature for the reference service disk. Although the preset dangerous temperature of each service disk is different, the temperature of each service disk can be unified to a standard through weighting calculation, and comparison or calculation is more convenient.
And step 102, polling by the master control panel every preset time to obtain the weighted temperature of each service panel, and determining the current temperature level of each service panel according to the preset temperature grade and the weighted temperature of each service panel so as to obtain a temperature level array.
Wherein, when grading the temperature, the main pair comprises TmaxA plurality of temperature intervals are divided in an upper temperature range and a lower temperature range, and the temperature level is set for each temperature interval according to the sequence of the temperature from low to high. To be higher than TmaxAnd is lower than TmaxThe temperature ranges of (a) and (b) are divided into two temperature intervals respectively, a first temperature threshold value and a second temperature threshold value are introduced, wherein the first temperature threshold value is lower than TmaxBut is relatively close to TmaxE.g. can be set to Tmax80% -100%; the second temperature threshold is higher than TmaxBut not much higher, e.g. set to Tmax100% -120%. Setting the temperature level to 0 for a temperature interval lower than a first temperature threshold; for a first temperature threshold and TmaxThe temperature level is set to be 1 in the temperature interval; for TmaxSetting the temperature level to be 2 in a temperature interval between the first temperature threshold and the second temperature threshold; for temperature intervals above the second temperature threshold, a temperature level of 3 is set. The greater the temperature level, the higher the temperature, and the greater the fan speed required.
Assuming that the preset dangerous temperatures of the Slot1, the Slot2 and the Slot3 are respectively 100 ℃, 40 ℃ and 50 ℃ and the first temperature threshold and the second temperature threshold are respectively 90 ℃ and 110 ℃ on the basis of the Slot1 service disk, the temperature is graded as shown in fig. 8; for Slot2 and Slot3 service disks, the temperature values in brackets represent corresponding actual temperature values, and the temperature values outside the brackets represent weighted temperatures. According to the temperature grading method, after obtaining the weighted temperature of each service disk, the master control disk can determine the temperature grade through the temperature interval where the weighted temperature value is located, and after the temperature grade of each service disk is determined, the corresponding slot position is filled with the corresponding temperature grade, so that a temperature grade array is obtained, and specifically, referring to fig. 9, the slot position numbers correspond to the temperature grades one by one.
And 103, determining the currently required fan rotating speed by the main control panel according to the corresponding relation between the pre-stored fan rotating speed and the temperature level array, and further adjusting the fan rotating speed.
Before temperature control, a plurality of tests can be carried out in advance, the relationship between the rotating speed of the fan and the temperature level array is determined, a one-to-one corresponding relationship table of the rotating speed of the fan and the temperature level array is generated, and the relationship table is stored in the master control disk and each service disk in advance. When the temperature level array is obtained according to the step 102, the main control panel may directly determine the fan rotation speed corresponding to the current temperature level array from the relationship table, and then adjust the fan according to the rotation speed to control the temperature. When all numerical values in the temperature level array are 0, the weighted temperature of each service disk is lower than a first temperature threshold value, each single disk keeps normal work, and the fan can continuously keep the current rotating speed to operate without adjustment; when any non-0 value exists in the temperature level array, determining the rotating speed of the fan corresponding to the current temperature level array according to a pre-stored corresponding relation table, and adjusting the rotating speed of the fan according to the determined rotating speed; the higher the temperature levels in the array, the greater the number of high temperature levels, and the greater the fan speed required.
The measured temperature of each service disk is weighted and calculated and the temperature grade is set, so that the current temperature and the temperature requirement of each service disk are comprehensively considered, the analysis and processing process of the temperature of each service disk is simplified, the temperature of each service disk is unified to a standard, the required rotating speed of the fan can be directly determined through the temperature grade array, and the balanced adjustment of the temperature is realized.
Accordingly, in the step 20, when the master control disk is abnormal, the first specified service disk also performs temperature control according to the weighted temperature, specifically referring to fig. 10, including the following steps:
step 201, after the first designated service disk takes over the management authority of the master control disk, the weighted temperature of each service disk is obtained through information interaction. Since each service disk can calculate its own weighted temperature in real time according to its own measured temperature, the first specified service disk can obtain the weighted temperature of each service disk by initiating information interaction.
Step 202, according to the preset temperature grades and the weighted temperatures of the service disks, the first appointed service disk determines the current temperature grade of each service disk, and then a temperature grade array is obtained. After obtaining the weighted temperature of each service disk, the first specified service disk determines the temperature level to which each service disk belongs according to the temperature interval in which the weighted temperature value is located, and fills the corresponding slot position, so as to obtain a temperature level array, which may specifically refer to step 102.
Example 3:
on the basis of the foregoing embodiment 1 and embodiment 2, an embodiment of the present invention further provides a fan control system for rack equipment, which is used to implement the fan control methods in the embodiments 1 and 2. Referring to fig. 1, the system includes a rack backplane and a plurality of single disks, where the plurality of single disks include a main control disk, a fan disk, a power disk and a plurality of service disks, each of the plurality of service disks is provided with a temperature detection unit and a simple management control unit, the temperature detection unit is configured to detect a temperature of a corresponding service disk, and the simple management control unit is configured to report temperature information of the corresponding service disk to the main control disk, and control a management authority of the corresponding service disk to take over the main control disk when the main control disk is abnormal in operation; a management control unit is arranged in the main control panel and used for determining the currently required fan rotating speed according to the temperature of each service panel and transmitting the rotating speed to the fan panel; the fan disk is internally provided with a driving unit and one or more fan groups, each fan group comprises at least one fan, and the driving unit is used for driving the fans of the fan groups to output a specified rotating speed so as to control the temperature of the service disk.
In this embodiment, the plurality of service disks respectively correspond to Slot numbers Slot1-Slot1N, and N is an integer greater than 3. Each service disk is provided with a plurality of temperature detection points, and each temperature detection unit can be composed of a plurality of temperature sensors and is further used for detecting the temperatures of the plurality of temperature detection points on the corresponding service disk in real time to obtain a plurality of temperature values. The simple management control unit is used for acquiring the temperature value of each temperature detection point from the corresponding temperature detection unit, determining the highest temperature in the temperature detection points through comparison, wherein the highest temperature is the measured temperature of the corresponding service panel, and reporting the measured temperature of the corresponding service panel to the management control unit in the main control panel when the main control panel normally works. The management control unit determines the highest temperature in each service disk through comparison according to the reported service disk temperature, calculates the current required fan rotating speed of the system according to the highest temperature, then transmits the rotating speed to the driving unit in the fan disk, and the driving unit further drives the fan of the fan group to output the specified rotating speed so as to realize temperature control.
And meanwhile, the management control unit is also used for initiating information interaction to each service disk and informing each service disk of the slot position number and whether the slot position is in the designated slot position or not through interaction. When the master control panel works abnormally, the service panel located in the designated slot position takes over the management authority of the master control panel, at this time, the simple management control unit is further used for initiating information interaction with other service panels, further acquiring the temperature of each service panel, determining the highest temperature in each service panel through comparison, calculating the currently required fan rotating speed of the system according to the highest temperature, then transmitting the rotating speed to the driving unit in the fan panel, and further driving the fan of the fan group to output the designated rotating speed by the driving unit, so that temperature control is realized. For a specific working process, reference may be made to embodiment 1, which is not described herein again.
Usually, a temperature detection unit is also arranged in the main control panel and the power panel and used for detecting the temperature of the corresponding single panel; the management control unit of the main control panel can determine the highest temperature by comparing the temperatures of the main control panel, the power panel and each service panel, and calculate the current required fan rotating speed according to the highest temperature.
When the method of performing temperature control according to the weighted temperature in embodiment 2 is adopted, the simple management control unit in the service panel is further configured to calculate the weighted temperature according to the measured temperature of each service panel, the management control unit in the main control panel calculates the weighted temperatures of the main control panel and the power panel, determines the temperature level array according to the weighted temperature values reported by each service panel, and finally determines the current required fan rotation speed according to the corresponding relationship table between the fan rotation speed and the temperature level array. When the master control panel is abnormal, the simple management control unit in the service panel determines the temperature level array according to the weighted temperature value of each service panel, and finally determines the current required fan rotating speed according to the corresponding relation table of the fan rotating speed and the temperature level array. For a specific working process, reference may be made to embodiment 2, which is not described herein again.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. The fan control method of the rack equipment is characterized in that when a master control panel works normally, the master control panel obtains the temperature of each service panel so as to adjust the rotating speed of a fan, performs information interaction with each service panel in real time, and determines the service panel meeting a first preset condition as a first appointed service panel; when the master control disk works abnormally, the method comprises the following steps:
the first appointed service panel takes over the management authority of the main control panel, performs information interaction with other service panels, obtains the temperature of each service panel so as to adjust the rotating speed of the fan, and simultaneously monitors whether the main control panel is recovered to be normal or not in real time;
when the main control panel returns to normal, the first appointed service panel stops information interaction, returns the management authority to the main control panel, and continues to perform information interaction with each service panel by the main control panel to obtain the temperature of each service panel so as to adjust the rotating speed of the fan;
when the first appointed service disk takes over the management authority of the master control disk and obtains the temperature of each service disk, the first appointed service disk determines the service disk meeting a second preset condition in other service disks as a second appointed service disk;
before the master control panel returns to normal, the first specified service panel detects whether the temperature of the first specified service panel reaches a preset threshold value in real time, and when the temperature of the first specified service panel reaches the preset threshold value, the second specified service panel takes over the management authority of the first specified service panel.
2. The method for controlling the fan of the rack device according to claim 1, wherein the determining the service tray meeting the first preset condition as the first designated service tray specifically comprises:
comparing the temperature of each service disk, and determining the service disk with the lowest temperature as a first appointed service disk; or calculating the difference between the temperature of each service disk and the preset dangerous temperature of the corresponding service disk, comparing the obtained differences, and determining the corresponding service disk with the largest difference as the first appointed service disk.
3. The fan control method of rack equipment according to claim 2, wherein the information interaction includes interaction of slot position information corresponding to each service disk and interaction of temperature information corresponding to each service disk; wherein the temperature is a measured temperature or a weighted temperature.
4. The method for controlling the fan of the rack device according to claim 1, wherein when the master control panel normally works, the master control panel obtains the temperature of each service panel to adjust the rotating speed of the fan specifically comprises: reporting the measured temperature of each business disk to the main control disk by each business disk, polling the main control disk at preset time intervals to obtain the measured temperature of each business disk, determining the highest temperature of the measured temperatures by comparison, determining the currently required fan rotating speed according to the highest temperature, and further adjusting the fan rotating speed;
when the master control panel works abnormally, the first appointed service panel takes over the management authority of the master control panel, performs information interaction with other service panels, and obtains the temperature of each service panel so as to adjust the rotating speed of the fan, wherein the management authority of the master control panel is specifically as follows: after the first appointed service panel takes over the management authority of the main control panel, the actually measured temperatures of the service panels are obtained through information interaction, the highest temperature of the actually measured temperatures is determined through comparison, the currently required fan rotating speed is determined according to the highest temperature, and then the fan rotating speed is adjusted.
5. The method for controlling the fan of the rack device according to claim 1, wherein when the master control panel normally works, the master control panel obtains the temperature of each service panel to adjust the rotation speed of the fan, and specifically comprises:
taking any service disk as a reference, each service disk performs weighted calculation on the measured temperature of the service disk to obtain the weighted temperature corresponding to each service disk, and reports the weighted temperature to the master control disk;
polling the master control disk at preset time intervals to obtain the weighted temperature of each service disk, determining the current temperature grade of each service disk according to the preset temperature grade and the weighted temperature of each service disk, and further obtaining a temperature grade array;
according to the pre-stored corresponding relation between the fan rotating speed and the temperature level array, the main control panel determines the currently required fan rotating speed so as to adjust the fan rotating speed;
when the master control panel works abnormally, the first appointed service panel takes over the management authority of the master control panel, performs information interaction with other service panels, obtains the temperature of each service panel and then adjusts the rotating speed of the fan, and the method specifically comprises the following steps:
after the first appointed service disk takes over the management authority of the master control disk, acquiring the weighted temperature of each service disk through information interaction;
according to preset temperature grades and the weighted temperature of each service disk, the first appointed service disk determines the current temperature grade of each service disk so as to obtain a temperature grade array;
and according to the corresponding relation between the pre-stored fan rotating speed and the temperature level array, the first appointed service disk determines the currently required fan rotating speed, and then the fan rotating speed is adjusted.
6. The fan control method of rack equipment according to claim 1, wherein the rack is divided into zones in advance according to the position distribution of each service disk and each fan group in the rack, each zone comprises one fan group and at least one service disk, and the at least one service disk is controlled by the fan group in the corresponding zone;
when the rotating speed of the fan is adjusted, the rotating speed of the fan in the fan group in each area is respectively adjusted according to the pre-divided areas, specifically: and determining the rotating speed of the fan required by each area according to the temperature of each service disk in each area, and further driving the fan group in each area to output the corresponding rotating speed, so as to realize the temperature regulation of the service disks in each area.
7. The rack device fan control method according to claim 6, wherein after the first designated service disk takes over the management authority of the master control disk, when the fan rotation speeds of the fan groups in the respective regions are respectively adjusted according to the pre-divided regions, the fan groups in the region where the first designated service disk is located are firstly subjected to rotation speed adjustment, so as to adjust the temperature of the region, and then the fan groups in other regions are subjected to rotation speed adjustment, so as to adjust the temperatures of other regions.
8. The fan control method of rack equipment according to any one of claims 1 to 7, wherein when the master control panel fails to respond to information interaction of each service panel n consecutive times, the first designated service panel judges that the master control panel is abnormal, and takes over the management authority of the master control panel; and when the main control panel responds to the information interaction of the first appointed service panel again, the first appointed service panel judges that the main control panel is recovered to be normal, and further the management authority is handed back.
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| CN110778517B (en) * | 2019-09-27 | 2022-02-22 | 苏州浪潮智能科技有限公司 | Fan control method, device and storage medium |
| CN114135510B (en) * | 2021-11-03 | 2023-06-20 | 烽火通信科技股份有限公司 | Intelligent speed regulation method, device, equipment and storage medium for communication equipment fan |
| CN114738264A (en) * | 2022-04-26 | 2022-07-12 | 醴陵千汇实业有限公司 | Quick oil cooling system of plunger pump |
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