CN107269567A - A kind of realization method and system of the PID fan regulation and controlling strategies based on environment temperature - Google Patents
A kind of realization method and system of the PID fan regulation and controlling strategies based on environment temperature Download PDFInfo
- Publication number
- CN107269567A CN107269567A CN201710713743.7A CN201710713743A CN107269567A CN 107269567 A CN107269567 A CN 107269567A CN 201710713743 A CN201710713743 A CN 201710713743A CN 107269567 A CN107269567 A CN 107269567A
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- China
- Prior art keywords
- environment temperature
- controlling
- fan
- temperature
- pid
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/20—Cooling means
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
-
- 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
-
- 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
- F05D2270/70—Type of control algorithm
- F05D2270/706—Type of control algorithm proportional-integral-differential
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/08—Thermal analysis or thermal optimisation
Abstract
The invention discloses a kind of realization method and system of the PID fan regulation and controlling strategies based on environment temperature, belong to CPU technical field of heat dissipation, the technical problem to be solved in the present invention is Kp values is changed with variation of ambient temperature, realize that fan regulation and controlling strategy is adjusted to the dynamic of environment temperature, the technical scheme used for：（1）, a kind of implementation method of the PID fan regulation and controlling strategies based on environment temperature, during this method is CPU runnings, current environmental temperature is read by EAT sensor, and the Kp values in fan regulation and controlling strategy are determined according to environment temperature, the dynamic adjustment of PID fan regulation and controlling strategies is realized.（2）, a kind of system of the PID fan regulation and controlling strategies based on environment temperature, the system includes EAT sensor, Baseboard Management Controller and fan management module, and EAT sensor sends data to Baseboard Management Controller by I2C buses.Baseboard Management Controller sends data to fan management module by I2C buses.
Description
Technical field
The present invention relates to CPU technical field of heat dissipation, specifically a kind of PID fan regulation and controlling strategies based on environment temperature
Realization method and system.
Background technology
The raising of performance requirement and the progress of CPU manufacturing process are calculated CPU with market, and CPU power consumption specification is gradually carried
Rise, the discharge from system turns into the emphasis that current CPU design personnel pay close attention to the heat how to produce CPU in time.Fan freezes
Turn into the radiating mode that CPU is mainly used by advantages such as high reliability, ease for maintenance and low costs.CPU radiating specification is
Linear, it is not a fixed numerical value, in order to prevent CPU excess temperatures or rotation speed of the fan too high, it is necessary to constantly adjust fan turn
Speed meets CPU radiating requirements.Regulate and control method compared to traditional ladder, PID regulation and control method can effectively reduce fan and turn
Speed and system noise, and avoid the fan in CPU runnings from shaking.PID regulation and control methods are to enter sector-style according to equation below
Fan the calculating of rotating speed：
Wherein, Kp values determine the stride of fan adjustment, and the influence system fan stable time, is the core in PID regulating strategies
Heart parameter.
As cooling medium, the density and specific heat capacity of air are all reduced with the rise of environment temperature.This is also just determined
, in high temperature environments, fan needs what is responded during than low temperature faster can just play effective radiating effect, regulates and controls for PID
For, that is, represent at high temperature Kp values to be set relatively larger.Can a larger Kp value may cause in low temperature ring
Rotation speed of the fan increase is too fast under border, so as to the situation of fan concussion occur.Current PID regulation and control are set, using preset parameter
Value, can make CPU the risk that rotation speed of the fan shakes under CPU excess temperatures under high temperature or low temperature occur.Therefore how to make Kp values with environment temperature
Change and change, realize that dynamic adjustment of the fan regulation and controlling strategy to environment temperature is the current technical problem for being badly in need of solution.
Patent No. CN 106681458A patent document discloses a kind of PID fan regulation and controllings strategy guard method, sets
C PU temperature protection points, logical statement is increased in PID regulating strategies, when cpu temperature is less than temperature protection point, PID regulation and control
Strategy exports fan PWM value according to normal PID computational methods, when cpu temperature exceedes temperature protection point, PID regulating strategies pair
PWM value increases by one and quantifies the rotating speed for exporting regulate and control fan to fan again.But the technical scheme how is solved according to CPU
The PWM value of temperature adjusting fan, it is impossible to which how solution makes Kp values change with variation of ambient temperature, realizes fan regulation and controlling strategy pair
The problem of dynamic adjustment of environment temperature.
The content of the invention
The technical assignment of the present invention is to provide a kind of realization method and system of the PID fan regulation and controlling strategies based on environment temperature,
To solve how to make Kp values with variation of ambient temperature change, realize fan regulation and controlling strategy to asking that the dynamic of environment temperature is adjusted
Topic.
The present invention technical assignment realize in the following manner, a kind of PID fan regulation and controlling strategies based on environment temperature
Implementation method, during this method is CPU runnings, current environmental temperature is read by EAT sensor, and according to ring
Border temperature determines the Kp values in fan regulation and controlling strategy, realizes the dynamic adjustment of PID fan regulation and controlling strategies.
Preferably, this method specifically includes following steps：
（1）, computing environment temperature and regulate and control parameter corresponding relation：Kp=f(T)；
（2）, Baseboard Management Controller（BMC）The fan that the corresponding relation write-in of environment temperature and regulation and control parameter is internally integrated is adjusted
Control in plan logical statement；
（3）, calculate defined in PID regulating strategies required parameter：
1. system initial p WM values, are defined；
2. initial temperature deviation Le, is defined；
3. proportional COEFFICIENT K p, is defined；
4., defining integration term coefficient Ki；
5. differential term COEFFICIENT K d, is defined；
6. interval time dt, is set；
7., design temperature control parameter Tcontrol, cpu temperature control is existed（Tjmax-Tcontrol）, wherein, Tjmax is
The maximum junction temperature of CPU specifications；
（4）, read cpu temperature surplus TDTS and environment temperature T, according to temperature margin TDTS, environment temperature T and temperature control join
Number Tcontrol, the PWM variable quantities needed for being calculated according to PID regulating strategies.
More preferably, the step（1）Middle calculating environment temperature and the method for the corresponding relation for regulating and controlling parameter are：CPU is put
It is placed in the environment of controllable temperature, environment temperature T1-Tn is set, the PID fan regulation and controlling strategies for meeting cooling requirements are tested out respectively
Parameter Kp1-Kpn, fits the corresponding relation of environment temperature and regulation and control parameter：Kp=f(T).
A kind of system of the PID fan regulation and controlling strategies based on environment temperature, the system includes EAT sensor, mainboard
Management Controller and fan management module, EAT sensor monitor the environment temperature T of CPU operations in real time, by environment temperature T
Baseboard Management Controller is sent to, environment temperature T is used for the calculating of Kp values in fan regulation and controlling strategy；Baseboard Management Controller according to
The fan regulation and controlling policy logic sentence being internally integrated calculates the PWM value required for current system, and PWM value is sent into fan
Management module；Fan management module is used for the rotating speed for controlling fan.
Preferably, the EAT sensor sends data to Baseboard Management Controller by I2C buses.
More preferably, the Baseboard Management Controller sends data to fan management module by I2C buses.
The realization method and system and prior art phase of a kind of PID fan regulation and controlling strategies based on environment temperature of the present invention
Than with advantages below：
（1）, the present invention propose CPU in the process of running, current environmental temperature is read by EAT sensor, and according to ring
Border temperature determines the Kp values in fan regulation and controlling strategy, realizes the dynamic adjustment of PID fan regulation and controlling strategies, and Kp values are adjusted with environment temperature
Whole, it is ensured that at low ambient temperatures, fan can be with fast and stable, and in high temperature environments, fan speeds response speed, it is to avoid
CPU excess temperatures；
（2）, the present invention CPU can be made to adjust PID fan regulation and controlling policing parameters according to environment temperature, meet rotation speed of the fan current
System is actually needed, it is to avoid the risk of rotation speed of the fan fluctuation or CPU excess temperatures is occurred, is improved the stability of system operation；
（3）, compared to traditional PI D fan regulation and controlling strategies, the present invention adds the calculating of Kp parameters in PWM incremental computations backs
Process, in each calculating cycle, Kp values all can dynamically be adjusted according to environment temperature T, fan regulation and controlling strategy is agreed with server fortune
Capable actual environment.
Brief description of the drawings
The present invention is further described below in conjunction with the accompanying drawings.
Accompanying drawing 1 is the implementation method FB(flow block) of the PID fan regulation and controlling strategies based on environment temperature；
Accompanying drawing 2 is the structured flowchart of the system of the PID fan regulation and controlling strategies based on environment temperature.
Embodiment
With reference to Figure of description and specific embodiment to a kind of PID fan regulation and controlling strategies based on environment temperature of the invention
Realization method and system be described in detail below.
Embodiment 1：
As shown in Figure 1, the implementation method of the PID fan regulation and controlling strategies of the invention based on environment temperature, this method is CPU fortune
During row, current environmental temperature is read by EAT sensor, and determine in fan regulation and controlling strategy according to environment temperature
Kp values, realize PID fan regulation and controlling strategies dynamic adjustment.
This method specifically includes following steps：
（1）, CPU is positioned in the environment of controllable temperature, environment temperature T1-Tn is set, tests out meet cooling requirements respectively
PID fan regulation and controlling policing parameter Kp1-Kpn, fit the corresponding relation of environment temperature and regulation and control parameter：Kp=f(T)；
（2）, Baseboard Management Controller（BMC）The fan that the corresponding relation write-in of environment temperature and regulation and control parameter is internally integrated is adjusted
Control in plan logical statement；
（3）, calculate defined in PID regulating strategies required parameter：
1. system initial p WM values, are defined；
2. initial temperature deviation Le, is defined；
3. proportional COEFFICIENT K p, is defined；
4., defining integration term coefficient Ki；
5. differential term COEFFICIENT K d, is defined；
6. interval time dt, is set；
7., design temperature control parameter Tcontrol, cpu temperature control is existed（Tjmax-Tcontrol）, wherein, Tjmax is
The maximum junction temperature of CPU specifications；
（4）, read cpu temperature surplus TDTS and environment temperature T, according to temperature margin TDTS, environment temperature T and temperature control join
Number Tcontrol, the PWM variable quantities needed for being calculated according to PID regulating strategies.
Embodiment 2：
As shown in Figure 2, the system of the PID fan regulation and controlling strategies of the invention based on environment temperature, the base based on embodiment 1
In the implementation method of the PID fan regulation and controlling strategies of environment temperature, the system includes EAT sensor, Baseboard Management Controller
With fan management module, EAT sensor monitors the environment temperature T of CPU operations in real time, and EAT sensor passes through I2C
Environment temperature T is sent to Baseboard Management Controller by bus, and environment temperature T is used for the calculating of Kp values in fan regulation and controlling strategy；It is main
PWM value of the board management controller according to required for the fan regulation and controlling policy logic sentence being internally integrated calculates current system, and
PWM value is sent to by fan management module by I2C buses；Fan management module is used for the rotating speed for controlling fan.
By embodiment above, the those skilled in the art can readily realize the present invention.But should
Work as understanding, the present invention is not limited to above-mentioned embodiment.On the basis of disclosed embodiment, the technical field
Technical staff can be combined different technical characteristics, so as to realize different technical schemes.
It is the known technology of those skilled in the art in addition to the technical characteristic described in specification.
Claims (6)
1. a kind of implementation method of the PID fan regulation and controlling strategies based on environment temperature, it is characterised in that：This method is CPU operations
During, current environmental temperature is read by EAT sensor, and determine in fan regulation and controlling strategy according to environment temperature
Kp values, realize the dynamic adjustment of PID fan regulation and controlling strategies.
2. the implementation method of the PID fan regulation and controlling strategies according to claim 1 based on environment temperature, it is characterised in that：
This method specifically includes following steps：
（1）, computing environment temperature and regulate and control parameter corresponding relation：Kp=f(T)；
（2）, Baseboard Management Controller is by environment temperature and regulates and controls the fan regulation and controlling plan that is internally integrated of corresponding relation write-in of parameter
In logical statement；
（3）, calculate defined in PID regulating strategies required parameter：
1. system initial p WM values, are defined；
2. initial temperature deviation Le, is defined；
3. proportional COEFFICIENT K p, is defined；
4., defining integration term coefficient Ki；
5. differential term COEFFICIENT K d, is defined；
6. interval time dt, is set；
7., design temperature control parameter Tcontrol, cpu temperature control is existed（Tjmax-Tcontrol）, wherein, Tjmax is
The maximum junction temperature of CPU specifications；
（4）, read cpu temperature surplus TDTS and environment temperature T, according to temperature margin TDTS, environment temperature T and temperature control join
Number Tcontrol, the PWM variable quantities needed for being calculated according to PID regulating strategies.
3. the implementation method of the PID fan regulation and controlling strategies according to claim 2 based on environment temperature, it is characterised in that：
The step（1）Middle calculating environment temperature and the method for the corresponding relation for regulating and controlling parameter are：CPU is positioned over to the environment of controllable temperature
In, environment temperature T1-Tn is set, the PID fan regulation and controlling policing parameter Kp1-Kpn for meeting cooling requirements are tested out respectively, is fitted
Go out the corresponding relation of environment temperature and regulation and control parameter：Kp=f(T).
4. a kind of system of the PID fan regulation and controlling strategies based on environment temperature, it is characterised in that：The system is passed including EAT
Sensor, Baseboard Management Controller and fan management module, EAT sensor monitor the environment temperature T of CPU operations in real time, will
Environment temperature T is sent to Baseboard Management Controller, and environment temperature T is used for the calculating of Kp values in fan regulation and controlling strategy；Mainboard is managed
PWM value of the controller according to required for the fan regulation and controlling policy logic sentence being internally integrated calculates current system, and by PWM value
It is sent to fan management module；Fan management module is used for the rotating speed for controlling fan.
5. the system of the PID fan regulation and controlling strategies according to claim 4 based on environment temperature, it is characterised in that：It is described
EAT sensor sends data to Baseboard Management Controller by I2C buses.
6. the system of the PID fan regulation and controlling strategies based on environment temperature according to claim 4 or 5, it is characterised in that：Institute
State Baseboard Management Controller and fan management module is sent data to by I2C buses.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107701483A (en) * | 2017-11-17 | 2018-02-16 | 英业达科技有限公司 | Temperature control equipment and its method |
| CN107762936A (en) * | 2017-11-17 | 2018-03-06 | 英业达科技有限公司 | Temperature control equipment and its method |
| CN107859646A (en) * | 2017-10-27 | 2018-03-30 | 英业达科技有限公司 | Temperature control equipment and its control method |
| CN108196651A (en) * | 2018-01-23 | 2018-06-22 | 曙光云计算集团有限公司 | A kind of radiator of server |
| CN108776537A (en) * | 2018-08-07 | 2018-11-09 | 郑州云海信息技术有限公司 | A kind of system and method for automatic test heat dissipation regulating strategy |
| CN109407793A (en) * | 2018-09-12 | 2019-03-01 | 西安易朴通讯技术有限公司 | A kind of temprature control method, relevant apparatus and readable storage medium storing program for executing |
| CN109542192A (en) * | 2018-11-28 | 2019-03-29 | 郑州云海信息技术有限公司 | A kind of PID fan regulation and controlling method and system based on fan redundancy |
| CN109753131A (en) * | 2019-01-11 | 2019-05-14 | 京东方科技集团股份有限公司 | Electronic equipment, heat dissipation debugging system and its adjustment method |
| CN110159577A (en) * | 2019-04-03 | 2019-08-23 | 杭州嘉楠耘智信息科技有限公司 | Control method and system of heat dissipation device |
| CN110345099A (en) * | 2019-07-18 | 2019-10-18 | 西安易朴通讯技术有限公司 | The method, apparatus and system of server fan speed regulation |
| CN111026256A (en) * | 2019-12-29 | 2020-04-17 | 苏州浪潮智能科技有限公司 | Fan rotating speed integral regulation and control method and device based on tiny temperature difference |
| CN113133286A (en) * | 2021-04-19 | 2021-07-16 | 西安易朴通讯技术有限公司 | Heat dissipation control method, device, equipment and storage medium |
| CN114756067A (en) * | 2022-03-30 | 2022-07-15 | 神华神东电力有限责任公司 | Temperature adjusting method and device, electronic equipment and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107859646B (en) * | 2017-10-27 | 2019-11-29 | 英业达科技有限公司 | Temperature control equipment and its control method |
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| CN108196651A (en) * | 2018-01-23 | 2018-06-22 | 曙光云计算集团有限公司 | A kind of radiator of server |
| CN108776537A (en) * | 2018-08-07 | 2018-11-09 | 郑州云海信息技术有限公司 | A kind of system and method for automatic test heat dissipation regulating strategy |
| CN109407793A (en) * | 2018-09-12 | 2019-03-01 | 西安易朴通讯技术有限公司 | A kind of temprature control method, relevant apparatus and readable storage medium storing program for executing |
| CN109542192A (en) * | 2018-11-28 | 2019-03-29 | 郑州云海信息技术有限公司 | A kind of PID fan regulation and controlling method and system based on fan redundancy |
| CN109753131A (en) * | 2019-01-11 | 2019-05-14 | 京东方科技集团股份有限公司 | Electronic equipment, heat dissipation debugging system and its adjustment method |
| CN110159577A (en) * | 2019-04-03 | 2019-08-23 | 杭州嘉楠耘智信息科技有限公司 | Control method and system of heat dissipation device |
| CN110345099A (en) * | 2019-07-18 | 2019-10-18 | 西安易朴通讯技术有限公司 | The method, apparatus and system of server fan speed regulation |
| CN110345099B (en) * | 2019-07-18 | 2020-12-01 | 西安易朴通讯技术有限公司 | Method, device and system for regulating speed of server fan |
| CN111026256A (en) * | 2019-12-29 | 2020-04-17 | 苏州浪潮智能科技有限公司 | Fan rotating speed integral regulation and control method and device based on tiny temperature difference |
| CN113133286A (en) * | 2021-04-19 | 2021-07-16 | 西安易朴通讯技术有限公司 | Heat dissipation control method, device, equipment and storage medium |
| CN114756067A (en) * | 2022-03-30 | 2022-07-15 | 神华神东电力有限责任公司 | Temperature adjusting method and device, electronic equipment and storage medium |
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