CN107503968A - A kind of temperature self-adaptation fan control device - Google Patents
A kind of temperature self-adaptation fan control device Download PDFInfo
- Publication number
- CN107503968A CN107503968A CN201710862779.1A CN201710862779A CN107503968A CN 107503968 A CN107503968 A CN 107503968A CN 201710862779 A CN201710862779 A CN 201710862779A CN 107503968 A CN107503968 A CN 107503968A
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- China
- Prior art keywords
- fan
- module
- temperature
- fan control
- electrifying startup
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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
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- 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
- F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
-
- 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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Temperature (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
A kind of temperature self-adaptation fan control device, it electricity can complete to start in slave unit, persistently obtain device temperature information, accordingly adaptive adjustment rotation speed of the fan, solve the problems, such as noise of equipment mutation, optimization Consumer's Experience.Including temperature sensor, processor system, PLD, speed adjustment strategy selecting module, electrifying startup temperature collect module, fan control module, fan-status module and fan；The temperature sensor is connected with processor system and electrifying startup temperature collect module respectively；The processor system is connected with PLD；The fan is connected with fan control module and fan-status module respectively；The speed adjustment strategy selecting module, electrifying startup temperature collect module, fan control module, fan-status module are arranged on PLD.For the present invention due to determining rotation speed of the fan according to the temperature self-adaptation of chip from the beginning, chip temperature rise and rotation speed of the fan matching degree are high, are advantageous to save system energy consumption.
Description
Technical field
The present invention relates to circuit design field, and in particular to a kind of temperature self-adaptation fan control device.
Background technology
In complex communication equipment, it will usually design fan and its control panel, radiated for veneer in machine frame, to ensure plate
Upper chip temperature is worked in safe range.A kind of conventional fan control circuitry structure is as shown in Figure 1.The fan control system
Including：Four temperature sensor, processor system, PWM speed-adjusting and control systems and fan parts.Due to communication apparatus need compared with
Worked within the scope of wide temperature, so general use the adjustable fan of rotating speed, and difference is produced by PWM speed-adjusting and control systems and accounted for
The PWM ripples of empty ratio, are controlled to rotation speed of the fan.Usual chip temperature is higher, and rotation speed of the fan is higher, and noise is bigger.
The principle of fan speed-regulating strategy is to ensure to reduce turning for fan within the scope of temperature of the chip operation in safety as far as possible
Speed, reach reduction system noise, save energy consumption, increase the purpose of fan life.But in device power start-up course, processing
Device can not obtain temperature information, can not also run speed adjustment strategy and rotation speed of the fan is controlled.In order to ensure all cores as far as possible
Piece is in safe temperature range, usual device power default setting fan full speed running.Finished when processor system starts, then
Speed governing is carried out to fan by processor.So, when equipment starts, the fan of full speed running can bring very big noise, and
Processor start completion, when running speed adjustment strategy, often find that rotation speed of the fan is too high, and to the downward speed governing of fan.It is right
For user, the noise of whole equipment has an increase suddenly and the process declined suddenly, experience are poor.
The content of the invention
A kind of temperature self-adaptation fan control device proposed by the present invention, electricity it can complete to start in slave unit, it is lasting to obtain
Device temperature information, rotation speed of the fan is adaptively adjusted accordingly, solve the problems, such as noise of equipment mutation, optimize Consumer's Experience.
To achieve the above object, present invention employs following technical scheme：
A kind of temperature self-adaptation fan control device, including temperature sensor, processor system, PLD,
Speed adjustment strategy selecting module, electrifying startup temperature collect module, fan control module, fan-status module, fan；
The temperature sensor is connected with processor system and electrifying startup temperature collect module respectively；The processor system
System is connected with PLD；The fan is connected with fan control module and fan-status module respectively；
The speed adjustment strategy selecting module, electrifying startup temperature collect module, fan control module, fan-status module are equal
It is arranged on PLD；Wherein,
The speed adjustment strategy selecting module mainly selects speed adjustment strategy according to CPU initialization completion signals；
Electrifying startup temperature collect module mainly obtains the temperature information of temperature sensor, and feeds back to speed adjustment strategy selection
Module；
The fan gear value that fan control module is responsible for being passed over according to speed adjustment strategy selecting module produces corresponding duty
The pwm signal of ratio, control rotation speed of the fan；
Fan-status module is responsible for detecting the rising edge of fan FG signals, and according to the number and fan type meter of rising edge
Calculate rotation speed of the fan.
Further, the temperature sensor uses the digital temperature sensor with IIC/SMBUS interfaces.
Further, the temperature sensor uses MAX1617.
Further, the fan uses the DC fan of PWM controls.
Further, a state machine, electrifying startup temperature acquisition mould are set in the electrifying startup temperature collect module
Root tuber completes indication signal according to upper electricity and CPU is initialized and do not completed signal, meets IIC/SMBUS sequential by state machine control generation
And the signal of frame format requirement, obtain the temperature information in temperature sensor register.
Further, the temperature sensor is by setting interface IIC/SMBUS to be opened respectively with processor system and upper electricity
Dynamic temperature acquisition module is connected.
Further, the processor system is connected with PLD by customized LOCALBUS buses
Connect.
Further, the speed adjustment strategy selecting module can select electrifying startup temperature collect module after the completion of upper electricity
The temperature value of acquisition, and fan gear is calculated accordingly, CPU can also be selected with tune after processor system start completion
The fan gear that fast policy calculation goes out.
From the foregoing, it will be observed that compared to the DC fan control system of prior art, invention increases electrifying startup temperature acquisition
Module and speed adjustment strategy selecting module.A state machine is provided with electrifying startup temperature collect module, can be complete in system electrification
Cheng Hou, it is periodically automatic to obtain temperature value in temperature sensor.Even if processor system is also completed without initialization, can also obtain
Take system temperature.Speed adjustment strategy selecting module can select the temperature that electrifying startup temperature collect module obtains after the completion of upper electricity
Value, and fan gear is calculated accordingly, after processor system start completion CPU can also be selected to be calculated with speed adjustment strategy
The fan gear gone out.So, no matter whether processor system initializes completion, and equipment can be adaptive according to current temperature value
The gear of fan should be calculated.Because chip temperature is slowly elevated after upper electricity, so rotation speed of the fan will be also slowly increased, system
The noise showed also can be the process for being slowly increase until balance, optimize Consumer's Experience.On the other hand, due to from the beginning
Rotation speed of the fan is just determined according to the temperature self-adaptation of chip, chip temperature rise and rotation speed of the fan matching degree are high, are advantageous to saving system
Energy consumption.
Brief description of the drawings
Fig. 1 is conventional fan control circuitry structured flowchart；
Fig. 2 is temperature self-adaptation fan control circuitry block diagram；
Embodiment
The present invention will be further described below in conjunction with the accompanying drawings：
As shown in Fig. 2 a kind of temperature self-adaptation fan control device of the present embodiment, including temperature sensor 10, processing
Device system 20, PLD (CPLD) 30, speed adjustment strategy selecting module 40, electrifying startup temperature collect module 50, wind
Fan control module 60, fan-status module 70, fan 80.
Wherein speed adjustment strategy selecting module 40, electrifying startup temperature collect module 50, fan control module 60, fan-status
Module 70 is all realized in PLD (CPLD) 30.
The temperature sensor 10 can by the interfaces such as IIC/SMBUS respectively with processor system 20 and FPGA
Electrifying startup temperature collect module in device (CPLD) 30 is connected；The processor system 20 and PLD
(CPLD) 30 are connected by customized LOCALBUS buses；In PLD (CPLD) 30 fan control module 60 with
And fan-status module 70 is connected with fan 70.Temperature sensor 10 can use the digital temperature sensing with IIC/SMBUS interfaces
Device realization, such as MAX1617.Fan 80 can use the DC fan of PWM controls, such as AVC DBTB0428B2GP157D.
The main logic circuit of electrifying startup temperature collect module 50 is a state machine.After Board Power up, electrifying startup
Temperature collect module 50 completes indication signal according to upper electricity and CPU is initialized and do not completed signal, is controlled by state machine and produces satisfaction
IIC/SMBUS sequential and the signal of frame format requirement, obtain the temperature information in the register of temperature sensor 10.
Speed adjustment strategy selecting module 40 mainly selects speed adjustment strategy according to CPU initialization completion signals.If CPU is initialized not
Complete, then the current temperature value obtained from electrifying startup temperature collect module 50, compared with preset value, while be based on fan-shaped
The current rotation speed of the fan that morphotype block 70 feeds back, calculates fan gear, and give fan control module 60 the gear value.If
CPU initialized completions, CPU control the module, and the gear value that operation speed adjustment strategy is calculated on CPU is passed through the module
Pass fan control module 60.
The fan gear value that fan control module 60 is responsible for being passed over according to speed adjustment strategy selecting module 40 produces corresponding
The pwm signal of dutycycle, control rotation speed of the fan.
Fan-status module 70 is responsible for the rising edge of detection fan FG signals, and according to the number and fan type of rising edge
Calculate rotation speed of the fan.
After the completion of system electrification, the electrifying startup temperature collect module 50 in PLD (CPLD) 30, automatically
Temperature data in temperature sensor 10 is obtained by IIC/SMBUS interfaces.Speed adjustment strategy selecting module 40 according to the temperature value,
Preset temperature value in rotation speed of the fan and CPLD calculates a fan gear.Fan control module 60 is according to the fan gear
The PWM ripples of duty ratio corresponding are produced, fan is controlled.The rotating speed of fan controls the PWM ripples received on pin to account for it
Sky is than being positively related.Dutycycle is bigger, then rotation speed of the fan is faster.Fan-status module 70 is responsible for obtaining current rotation speed of the fan shape
State, and abnormal fan-status is alerted.
After the completion of CPU initialization, by sending a CPU initialization to complete indication signal Init_done to electrifying startup
Temperature collect module 50 and speed adjustment strategy selecting module 40.After receiving Init_done signals, electrifying startup temperature collect module closes
Internal state machine is closed, no longer exports IIC/SMBUS signals to temperature sensor 10.The collection of temperature data is directly passed through by CPU
IIC/SMBUS interfaces are realized.Meanwhile CPU obtains the control of speed adjustment strategy selecting module 40, select to run speed governing on CPU
The fan gear value being calculated after strategy gives fan control module.Fan control module 60 produces corresponding duty according to the value
The PWM ripples of ratio, speed governing is carried out to fan.After start, the temperature of chip is to gradually rise, and is finally reached a stationary value
, so since being completed system electrification, chip temperature is persistently obtained, and fan speed-regulating is carried out accordingly, eliminate system startup
It is preceding to start the noise mutation brought in aft-fan speed adjustment strategy handoff procedure to system, optimize Consumer's Experience.
Embodiment described above is only that the preferred embodiment of the present invention is described, not to the model of the present invention
Enclose and be defined, on the premise of design spirit of the present invention is not departed from, technical side of the those of ordinary skill in the art to the present invention
The various modifications and improvement that case is made, all should fall within the scope of protection of the present invention.
Claims (7)
- A kind of 1. temperature self-adaptation fan control device, it is characterised in that：Including temperature sensor (10), processor system (20), PLD (30), speed adjustment strategy selecting module (40), electrifying startup temperature collect module (50), fan control Molding block (60), fan-status module (70) and fan (80)；The temperature sensor (10) is connected with processor system (20) and electrifying startup temperature collect module (50) respectively；It is described Processor system (20) is connected with PLD (30)；The fan (80) respectively with fan control module (60) and wind Fan block of state (70) is connected；The speed adjustment strategy selecting module (40), electrifying startup temperature collect module (50), fan control module (60), fan-shaped Morphotype block (70) is arranged on PLD (30)；Wherein,The speed adjustment strategy selecting module (40) mainly selects speed adjustment strategy according to CPU initialization completion signals；Electrifying startup temperature collect module (50) mainly obtains the temperature information of temperature sensor (10), and feeds back to speed adjustment strategy Selecting module (40)；The fan gear value that fan control module (60) is responsible for being passed over according to speed adjustment strategy selecting module (40) produces corresponding The pwm signal of dutycycle, control fan (80) rotating speed；Fan-status module (70) is responsible for the rising edge of detection fan (80) FG signals, and according to the number and fan class of rising edge Type calculates rotation speed of the fan.
- A kind of 2. temperature self-adaptation fan control device as claimed in claim 1, it is characterised in that：The temperature sensor (10) digital temperature sensor with IIC/SMBUS interfaces is used.
- A kind of 3. temperature self-adaptation fan control device as claimed in claim 1 or 2, it is characterised in that：The fan (80) The DC fan controlled using PWM.
- A kind of 4. temperature self-adaptation fan control device as claimed in claim 3, it is characterised in that：The electrifying startup temperature One state machine is set in acquisition module (50), electrifying startup temperature collect module (50) according to upper electricity complete indication signal and CPU initialization does not complete signal, and the signal for meeting IIC/SMBUS sequential and frame format requirement is produced by state machine control, is obtained Take the temperature information in temperature sensor (10) register.
- A kind of 5. temperature self-adaptation fan control device as claimed in claim 4, it is characterised in that：The temperature sensor (10) by setting interface IIC/SMBUS to be connected respectively with processor system (20) and electrifying startup temperature collect module (50).
- A kind of 6. temperature self-adaptation fan control device as claimed in claim 5, it is characterised in that：The processor system (20) it is connected with PLD (30) by customized LOCALBUS buses.
- A kind of 7. temperature self-adaptation fan control device as claimed in claim 6, it is characterised in that：The speed adjustment strategy selection Module (40) can select the temperature value that electrifying startup temperature collect module obtains after the completion of upper electricity, and calculate fan accordingly Gear, the fan gears that are calculated with speed adjustment strategy of CPU can also be selected after processor system (20) start completion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710862779.1A CN107503968B (en) | 2017-09-22 | 2017-09-22 | A kind of temperature self-adaptation fan control device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710862779.1A CN107503968B (en) | 2017-09-22 | 2017-09-22 | A kind of temperature self-adaptation fan control device |
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| Publication Number | Publication Date |
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| CN107503968A true CN107503968A (en) | 2017-12-22 |
| CN107503968B CN107503968B (en) | 2019-05-24 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108916097A (en) * | 2018-06-29 | 2018-11-30 | 深圳市同泰怡信息技术有限公司 | Server fan control method and server |
| CN109236697A (en) * | 2018-10-29 | 2019-01-18 | 安徽四创电子股份有限公司 | A kind of blower fan control system |
| CN109611367A (en) * | 2018-12-11 | 2019-04-12 | 英业达科技有限公司 | Fan control system and server based on CPLD |
| CN109611368A (en) * | 2018-12-13 | 2019-04-12 | 浪潮(北京)电子信息产业有限公司 | A kind of fan control system for storage system, method and device |
| CN109826822A (en) * | 2019-04-11 | 2019-05-31 | 苏州浪潮智能科技有限公司 | A kind of control method for fan and relevant apparatus |
| CN109958646A (en) * | 2019-03-20 | 2019-07-02 | 浪潮商用机器有限公司 | Control method for fan and system |
| CN110578704A (en) * | 2019-09-10 | 2019-12-17 | 湖南猎豹汽车股份有限公司 | Method for adjusting gear corresponding rotating speed of air blower of automobile air conditioner |
| CN111120383A (en) * | 2019-12-28 | 2020-05-08 | 苏州浪潮智能科技有限公司 | Control method and control device for equipment fan, switch and storage medium |
| CN111324503A (en) * | 2018-12-17 | 2020-06-23 | 中兴通讯股份有限公司 | Machine frame management device, method and computer readable storage medium |
| CN113543583A (en) * | 2021-06-07 | 2021-10-22 | 新华三信息安全技术有限公司 | Equipment heat dissipation method |
| CN114421833A (en) * | 2022-03-29 | 2022-04-29 | 浙江齐安信息科技有限公司 | Control device for two-wire DC fan |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
| CN108916097A (en) * | 2018-06-29 | 2018-11-30 | 深圳市同泰怡信息技术有限公司 | Server fan control method and server |
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| CN109958646A (en) * | 2019-03-20 | 2019-07-02 | 浪潮商用机器有限公司 | Control method for fan and system |
| CN109826822A (en) * | 2019-04-11 | 2019-05-31 | 苏州浪潮智能科技有限公司 | A kind of control method for fan and relevant apparatus |
| CN109826822B (en) * | 2019-04-11 | 2021-06-29 | 苏州浪潮智能科技有限公司 | Fan control method and related device |
| CN110578704A (en) * | 2019-09-10 | 2019-12-17 | 湖南猎豹汽车股份有限公司 | Method for adjusting gear corresponding rotating speed of air blower of automobile air conditioner |
| CN110578704B (en) * | 2019-09-10 | 2020-09-01 | 湖南猎豹汽车股份有限公司 | Method for adjusting gear corresponding rotating speed of air blower of automobile air conditioner |
| CN111120383A (en) * | 2019-12-28 | 2020-05-08 | 苏州浪潮智能科技有限公司 | Control method and control device for equipment fan, switch and storage medium |
| CN113543583A (en) * | 2021-06-07 | 2021-10-22 | 新华三信息安全技术有限公司 | Equipment heat dissipation method |
| CN114421833A (en) * | 2022-03-29 | 2022-04-29 | 浙江齐安信息科技有限公司 | Control device for two-wire DC fan |
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