TW201422928A - System and method for controlling fan noise - Google Patents
System and method for controlling fan noise Download PDFInfo
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- TW201422928A TW201422928A TW101146352A TW101146352A TW201422928A TW 201422928 A TW201422928 A TW 201422928A TW 101146352 A TW101146352 A TW 101146352A TW 101146352 A TW101146352 A TW 101146352A TW 201422928 A TW201422928 A TW 201422928A
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- 238000000034 method Methods 0.000 title claims description 15
- 230000001133 acceleration Effects 0.000 claims abstract description 71
- 238000012544 monitoring process Methods 0.000 claims description 2
- 230000017525 heat dissipation Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
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- General Engineering & Computer Science (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
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Abstract
Description
本發明涉及一種風扇噪音控制系統及方法。The invention relates to a fan noise control system and method.
在電腦散熱系統的設計過程中，有一個重要環節是如何做好風扇的控制。目前設計的原則是，風扇將根據溫度變化的快慢來即時地進行自身的速度的調節，如此可能導致風扇加速過快而產生震盪情形，進而使得噪音問題亦隨之產生。In the design process of the computer cooling system, an important part is how to control the fan. The current design principle is that the fan will adjust its own speed according to the speed of the temperature change, which may cause the fan to accelerate too fast and cause a shock situation, which will cause the noise problem to occur.
鑒於以上內容，有必要提供一種減小風扇運行時所產生的噪音的控制系統及方法。In view of the above, it is necessary to provide a control system and method that reduces the noise generated when the fan is in operation.
一種風扇噪音控制系統，用於根據一溫度感測器傳輸的溫度來控制一風扇的轉速，該風扇控制系統包括：A fan noise control system for controlling the speed of a fan according to a temperature transmitted by a temperature sensor, the fan control system comprising:
一第一設置單元，用於設置一第一觸發溫度值及一第二觸發溫度值；及a first setting unit, configured to set a first trigger temperature value and a second trigger temperature value; and
一加速單元，用於判斷溫度感測器傳輸的監測溫度值與第一觸發溫度值與該第二觸發溫度值之間的關系；當該監測溫度值大於該第一觸發溫度值且小於該第二觸發溫度值時，該加速單元控制該風扇按一第一加速幅度加速運行；當該監測溫度值大於第二觸發溫度值時，該加速單元控制該風扇按照一第二加速幅度加速運行，該第二加速幅度大於該第一加速幅度。An acceleration unit, configured to determine a relationship between the monitored temperature value transmitted by the temperature sensor and the first trigger temperature value and the second trigger temperature value; when the monitored temperature value is greater than the first trigger temperature value and less than the first When the temperature value is triggered, the acceleration unit controls the fan to accelerate according to a first acceleration range; when the monitored temperature value is greater than the second trigger temperature value, the acceleration unit controls the fan to accelerate according to a second acceleration range, The second acceleration amplitude is greater than the first acceleration amplitude.
一種風扇噪音控制方法，包括如下步驟：A fan noise control method includes the following steps:
第一設置步驟，用於設置一第一觸發溫度值及一第二觸發溫度值；a first setting step, configured to set a first trigger temperature value and a second trigger temperature value;
獲取步驟，用於獲取溫度感測器所感測的監測溫度值；An obtaining step of acquiring a monitored temperature value sensed by the temperature sensor;
判斷步驟，判斷該監測溫度值與該第一觸發溫度值及該第二觸發溫度值的關係；當該監測溫度值大於該第一觸發溫度值且小於該第二觸發溫度值時，執行第一加速步驟；當該監測溫度值大於該第二觸發溫度值時，執行第二加速步驟；a determining step of determining a relationship between the monitored temperature value and the first trigger temperature value and the second trigger temperature value; when the monitored temperature value is greater than the first trigger temperature value and less than the second trigger temperature value, performing the first An acceleration step; when the monitored temperature value is greater than the second trigger temperature value, performing a second acceleration step;
第一加速步驟，控制風扇按第一加速幅度進行加速；以及a first acceleration step of controlling the fan to accelerate at a first acceleration amplitude;
第二加速步驟，控制該風扇按大於第一加速幅度的第二加速幅度進行加速。The second acceleration step controls the fan to accelerate at a second acceleration amplitude greater than the first acceleration amplitude.
上述風扇控制系統及方法透過對該第一及第二觸發溫度與該監測溫度值進行比較來使得該風扇可按照不同的加速幅度加速運行，從而有效地降低了該風扇運行時的噪音。The fan control system and method can accelerate the operation of the fan according to different acceleration ranges by comparing the first and second trigger temperatures with the monitored temperature value, thereby effectively reducing noise during operation of the fan.
請參考圖1，本發明風扇噪音控制系統10用於根據一溫度感測器20傳輸的溫度值來對應調節風扇30的轉速，其中該風扇30用於對一系統進行散熱。Referring to FIG. 1, the fan noise control system 10 of the present invention is configured to adjust the rotational speed of the fan 30 according to a temperature value transmitted by a temperature sensor 20, wherein the fan 30 is configured to dissipate heat from a system.
請參考圖2，本發明風扇噪音控制系統10的較佳實施方式包括一第一設置單元101、一第二設置單元102及一加速單元108。Referring to FIG. 2, a preferred embodiment of the fan noise control system 10 of the present invention includes a first setting unit 101, a second setting unit 102, and an acceleration unit 108.
該第一設置單元101用於設置一第一觸發溫度值及一第二觸發溫度值。該風扇噪音控制系統10根據該第一觸發溫度值來判斷是否對該風扇30進行噪音控制，以降低風扇30所產生的噪音。根據風扇的工作原理可知，當該溫度感測器20監測的溫度較低時，如低於該第一觸發溫度值時，可以認為該風扇30的轉速相應的較慢，而此時該風扇30產生的噪音比較小，該風扇噪音控制系統10則可以不對該風扇30進行噪音控制，該風扇30可由自帶的控制系統進行速度控制。當該溫度感測器20監測的溫度較高時，如高於該第一觸發溫度值，該風扇30則會加速，以便有效地進行散熱。此時，該風扇噪音控制系統10則對該風扇30的轉速進行相應的控制，以減小該風扇30在加速的過程中產生的噪音。The first setting unit 101 is configured to set a first trigger temperature value and a second trigger temperature value. The fan noise control system 10 determines whether to perform noise control on the fan 30 based on the first trigger temperature value to reduce noise generated by the fan 30. According to the working principle of the fan, when the temperature monitored by the temperature sensor 20 is low, such as lower than the first trigger temperature value, the speed of the fan 30 can be considered to be correspondingly slow, and at this time, the fan 30 The generated noise is relatively small, and the fan noise control system 10 can not perform noise control on the fan 30, and the fan 30 can be speed controlled by its own control system. When the temperature monitored by the temperature sensor 20 is high, such as above the first trigger temperature value, the fan 30 is accelerated to effectively dissipate heat. At this time, the fan noise control system 10 controls the rotation speed of the fan 30 correspondingly to reduce the noise generated by the fan 30 during the acceleration process.
該加速單元108用於獲取該溫度感測器20所感測到的監測溫度值，並根據該監測溫度值與第一及第二觸發溫度值之間的關系對該風扇30進行加速控制。如當該溫度感測器20傳輸的監測溫度值大於該第一觸發溫度值且小於該第二觸發溫度值時，則表示該風扇噪音控制系統10只需對該風扇30的當前的轉速進行微小的加速調整就可以滿足散熱的需求，此時該風扇噪音控制系統10則按一第一加速幅度加速控制該風扇30進行加速；當該溫度感測器20傳輸的監測溫度值大於該第二觸發溫度值時，則表示該風扇30當前的速度遠不足以滿足系統的散熱需求，此時，只有當該風扇30快速運轉時才能保證系統的溫度不再繼續上升，此時該風扇噪音控制系統10則按一第二加速幅度加速控制該風扇30進行加速。當然，第一加速幅度小於第二加速幅度。The acceleration unit 108 is configured to acquire a monitored temperature value sensed by the temperature sensor 20, and perform acceleration control on the fan 30 according to the relationship between the monitored temperature value and the first and second trigger temperature values. For example, when the monitored temperature value transmitted by the temperature sensor 20 is greater than the first trigger temperature value and less than the second trigger temperature value, it indicates that the fan noise control system 10 only needs to make the current speed of the fan 30 small. The acceleration adjustment can meet the requirement of heat dissipation. At this time, the fan noise control system 10 accelerates the fan 30 to accelerate according to a first acceleration range; when the temperature sensor 20 transmits a monitored temperature value greater than the second trigger The temperature value indicates that the current speed of the fan 30 is far enough to meet the heat dissipation requirement of the system. At this time, the temperature of the system does not continue to rise only when the fan 30 is running fast. At this time, the fan noise control system 10 Then, the fan 30 is accelerated to accelerate according to a second acceleration amplitude. Of course, the first acceleration amplitude is smaller than the second acceleration amplitude.
當該加速單元108控制該風扇30按第二加速幅度加速運行時，該第二設置單元102則同時將該監測溫度值設置為該第二觸發溫度值，並繼續判斷監測得到的監測溫度值與該第一及第二觸發溫度值之間的關系。When the acceleration unit 108 controls the fan 30 to accelerate the operation according to the second acceleration range, the second setting unit 102 simultaneously sets the monitored temperature value to the second trigger temperature value, and continues to determine the monitored temperature value obtained by the monitoring. The relationship between the first and second trigger temperature values.
假定，該第一觸發溫度值為35度，該第二觸發溫度值為55度，該監測溫度值為40度。此時，該加速單元108判斷該監測溫度值大於該第一觸發溫度值且小於該第二觸發溫度值，該加速單元108按第一加速幅度加速控制該風扇30轉速，如按3%的加速幅度加速運行，即每次加速的幅度都為前一次速度的3%。之後，該加速單元108繼續判斷新的監測溫度值與該第一及第二觸發溫度值之間的關系。若此時該監測溫度值為30度，則表明該風扇噪音控制系統10無需對該風扇30進行控制。若此時該監測溫度值為60度，該加速單元108判斷該監測溫度值（60度）大於第一觸發溫度值（35度）及第二觸發溫度值（55度），該加速單元108則控制該風扇30按照該第二加速幅度加速運行，如按6%的加速幅度加速運行，即每次加速的幅度都為前一次速度的6%。此時，該第二設置單元102設置該監測溫度值為該第二觸發溫度值，即表示該第二觸發溫度值則變為60度，以使得該第二觸發溫度值根據溫度的變化進行改變。當該風扇30按照該第二加速幅度加速運行一預設時間之後，該加速單元108繼續判斷新的監測溫度值與該第一觸發溫度值（35度）及第二觸發溫度值（60度）之間的關系。若新的監測溫度值為61度，則表示該風扇30的轉速還未達到系統的散熱需求。該加速單元108繼續控制該風扇30按照該第二加速幅度加速運行。若新的監測溫度值為40度，則表明透過該加速單元108的控制之後，系統的散熱得到了明顯的改善，此時，該加速單元108則控制該風扇30按照該加速幅度加速運行，從而進一步減小了該風扇30在加速時所產生的噪音。如此往返控制該風扇30的轉速，以將該風扇30在加速過程中產生的噪音降低。It is assumed that the first trigger temperature value is 35 degrees, the second trigger temperature value is 55 degrees, and the monitored temperature value is 40 degrees. At this time, the acceleration unit 108 determines that the monitored temperature value is greater than the first trigger temperature value and is less than the second trigger temperature value, and the acceleration unit 108 accelerates the rotation of the fan 30 according to the first acceleration amplitude, such as 3% acceleration. The amplitude is accelerated, that is, the amplitude of each acceleration is 3% of the previous speed. Thereafter, the acceleration unit 108 continues to determine the relationship between the new monitored temperature value and the first and second trigger temperature values. If the monitored temperature value is 30 degrees at this time, it indicates that the fan noise control system 10 does not need to control the fan 30. If the monitored temperature value is 60 degrees at this time, the acceleration unit 108 determines that the monitored temperature value (60 degrees) is greater than the first trigger temperature value (35 degrees) and the second trigger temperature value (55 degrees), and the acceleration unit 108 The fan 30 is controlled to accelerate according to the second acceleration range, such as accelerating operation by an acceleration amplitude of 6%, that is, the amplitude of each acceleration is 6% of the previous speed. At this time, the second setting unit 102 sets the monitored temperature value to the second trigger temperature value, that is, the second trigger temperature value becomes 60 degrees, so that the second trigger temperature value changes according to the temperature change. . After the fan 30 accelerates to operate according to the second acceleration amplitude for a predetermined time, the acceleration unit 108 continues to determine the new monitored temperature value and the first trigger temperature value (35 degrees) and the second trigger temperature value (60 degrees). The relationship between. If the new monitored temperature value is 61 degrees, it means that the speed of the fan 30 has not reached the heat dissipation requirement of the system. The acceleration unit 108 continues to control the fan 30 to accelerate operation in accordance with the second acceleration amplitude. If the new monitored temperature value is 40 degrees, it indicates that the heat dissipation of the system is significantly improved after the control of the acceleration unit 108. At this time, the acceleration unit 108 controls the fan 30 to accelerate the operation according to the acceleration range, thereby The noise generated by the fan 30 during acceleration is further reduced. The rotation speed of the fan 30 is controlled to and fro in such a manner as to reduce the noise generated by the fan 30 during the acceleration.
請參考圖3，本發明風扇控制方法的較佳實施方式包括如下步驟：Referring to FIG. 3, a preferred embodiment of the fan control method of the present invention includes the following steps:
步驟S1，設置該第一觸發溫度值及第二觸發溫度值。In step S1, the first trigger temperature value and the second trigger temperature value are set.
步驟S2，獲取溫度感測器所感測的監測溫度值。In step S2, the monitored temperature value sensed by the temperature sensor is obtained.
步驟S3，判斷該監測溫度值是否大於該第一觸發溫度值。當監測溫度值大於該第一觸發溫度值時，執行步驟S4；當該監測溫度值不大於該第一觸發溫度值時，本流程結束。In step S3, it is determined whether the monitored temperature value is greater than the first trigger temperature value. When the monitored temperature value is greater than the first trigger temperature value, step S4 is performed; when the monitored temperature value is not greater than the first trigger temperature value, the process ends.
步驟S4，判斷該監測溫度值是否大於該第二觸發溫度值。當該監測溫度值大於該第二觸發溫度值時，執行步驟S6；當該監測溫度值不大於該第二觸發溫度值時，執行步驟S5。In step S4, it is determined whether the monitored temperature value is greater than the second trigger temperature value. When the monitored temperature value is greater than the second trigger temperature value, step S6 is performed; when the monitored temperature value is not greater than the second trigger temperature value, step S5 is performed.
步驟S5，控制該風扇按一第一加速幅度加速運行，並返回步驟S2。In step S5, the fan is controlled to accelerate the operation by a first acceleration range, and returns to step S2.
步驟S6，控制該風扇按一第二加速幅度加速運行。In step S6, the fan is controlled to accelerate according to a second acceleration range.
步驟S7，設置該第二觸發溫度為監測溫度值。In step S7, the second trigger temperature is set to be the monitored temperature value.
步驟S8，延時一預設時間，並返回步驟S2。In step S8, a predetermined time is delayed, and the process returns to step S2.
上述風扇噪音控制系統及方法透過將該監測溫度值與該第一及第二觸發溫度值進行比較並根據比較結果來使得該風扇30可按照不同的加速幅度加速運行幅度進行加速，如此使得當該監測溫度值在該第一及第二觸發溫度值之間時，該風扇30按照該第一加速幅度加速運行，當該監測溫度值大於該第二觸發溫度值時，該風扇30則按照該第二加速幅度加速運行。如此使得該風扇控制系統及方法根據監測溫度值進行分階段地調節風扇30的運行狀態，從而有效地降低了該風扇30運行時的噪音。The fan noise control system and method compares the monitored temperature value with the first and second trigger temperature values and, according to the comparison result, the fan 30 can accelerate according to different acceleration amplitudes, so that When the temperature value is between the first and second trigger temperature values, the fan 30 accelerates according to the first acceleration amplitude. When the monitored temperature value is greater than the second trigger temperature value, the fan 30 follows the first The second acceleration speed accelerates the operation. Thus, the fan control system and method adjusts the operating state of the fan 30 in stages according to the monitored temperature value, thereby effectively reducing the noise of the fan 30 during operation.
綜上所述，本發明確已符合發明專利的要件，爰依法提出專利申請。惟，以上所述者僅為本發明的較佳實施方式，本發明的範圍並不以上述實施方式為限，舉凡熟悉本案技藝的人士援依本發明的精神所作的等效修飾或變化，皆應涵蓋於以下申請專利範圍內。In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above-described embodiments, and those skilled in the art will be able to make equivalent modifications or variations in accordance with the spirit of the present invention. It should be covered by the following patent application.
10．．．風扇噪音控制系統10. . . Fan noise control system
20．．．溫度感測器20. . . Temperature sensor
30．．．風扇30. . . fan
101．．．第一設置單元101. . . First setting unit
102．．．第二設置單元102. . . Second setting unit
108．．．加速單元108. . . Acceleration unit
圖1是本發明風扇噪音控制系統與一風扇及溫度感測器連接的示意圖。1 is a schematic view showing the connection of a fan noise control system of the present invention to a fan and a temperature sensor.
圖2是本發明風扇噪音控制系統的較佳實施方式的方框圖。2 is a block diagram of a preferred embodiment of the fan noise control system of the present invention.
圖3是本發明風扇噪音控制方法的較佳實施方式的流程圖。3 is a flow chart of a preferred embodiment of the fan noise control method of the present invention.
10．．．風扇噪音控制系統10. . . Fan noise control system
20．．．溫度感測器20. . . Temperature sensor
30．．．風扇30. . . fan
Claims (5)
一第一設置單元，用於設置一第一觸發溫度值及一第二觸發溫度值；及
一加速單元，用於判斷溫度感測器傳輸的監測溫度值與第一觸發溫度值與該第二觸發溫度值之間的關系；當該監測溫度值大於該第一觸發溫度值且小於該第二觸發溫度值時，該加速單元控制該風扇按一第一加速幅度加速運行；當該監測溫度值大於第二觸發溫度值時，該加速單元控制該風扇按照一第二加速幅度加速運行，該第二加速幅度大於該第一加速幅度。A fan noise control system for controlling the speed of a fan according to a temperature transmitted by a temperature sensor, the fan control system comprising:
a first setting unit, configured to set a first trigger temperature value and a second trigger temperature value; and an acceleration unit, configured to determine a monitored temperature value transmitted by the temperature sensor and the first trigger temperature value and the second The relationship between the trigger temperature values; when the monitored temperature value is greater than the first trigger temperature value and less than the second trigger temperature value, the acceleration unit controls the fan to accelerate according to a first acceleration range; when the monitored temperature value When the value is greater than the second trigger temperature, the acceleration unit controls the fan to accelerate according to a second acceleration amplitude, and the second acceleration amplitude is greater than the first acceleration amplitude.
第一設置步驟，用於設置一第一觸發溫度值及一第二觸發溫度值；
獲取步驟，用於獲取溫度感測器所感測的監測溫度值；
判斷步驟，判斷該監測溫度值與該第一觸發溫度值及該第二觸發溫度值的關係；當該監測溫度值大於該第一觸發溫度值且小於該第二觸發溫度值時，執行第一加速步驟；當該監測溫度值大於該第二觸發溫度值時，執行第二加速步驟；
第一加速步驟，控制風扇按第一加速幅度進行加速；以及
第二加速步驟，控制該風扇按大於第一加速幅度的第二加速幅度進行加速。A fan noise control method includes the following steps:
a first setting step, configured to set a first trigger temperature value and a second trigger temperature value;
An obtaining step of acquiring a monitored temperature value sensed by the temperature sensor;
a determining step of determining a relationship between the monitored temperature value and the first trigger temperature value and the second trigger temperature value; when the monitored temperature value is greater than the first trigger temperature value and less than the second trigger temperature value, performing the first An acceleration step; when the monitored temperature value is greater than the second trigger temperature value, performing a second acceleration step;
a first acceleration step of controlling the fan to accelerate at a first acceleration amplitude; and a second acceleration step of controlling the fan to accelerate at a second acceleration amplitude greater than the first acceleration amplitude.
延時步驟，延時一預設時間後返回獲取步驟。
The fan noise control method of claim 4, wherein the second setting step further comprises:
The delay step returns to the acquisition step after a predetermined time delay.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101146352A TW201422928A (en) | 2012-12-10 | 2012-12-10 | System and method for controlling fan noise |
| US14/093,363 US20140161609A1 (en) | 2012-12-10 | 2013-11-29 | Fan control system and method |
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| Application Number | Priority Date | Filing Date | Title |
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| TW101146352A TW201422928A (en) | 2012-12-10 | 2012-12-10 | System and method for controlling fan noise |
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| TW201422928A true TW201422928A (en) | 2014-06-16 |
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| TW101146352A TW201422928A (en) | 2012-12-10 | 2012-12-10 | System and method for controlling fan noise |
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| TW (1) | TW201422928A (en) |
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| TWI495990B (en) * | 2012-12-14 | 2015-08-11 | Wistron Corp | Method for detecting heat dissipating air flow and electronic device using the same |
| CN105464923A (en) * | 2014-09-09 | 2016-04-06 | 鸿富锦精密工业(武汉)有限公司 | Fan control system and method |
| CN105715571A (en) * | 2014-12-01 | 2016-06-29 | 中兴通讯股份有限公司 | Communication equipment and multi-fan control method and device thereof |
| CN106704234B (en) * | 2015-07-30 | 2019-07-26 | 联想(北京)有限公司 | A kind of control method and device |
| CN109779939B (en) * | 2019-01-09 | 2021-05-18 | 合肥联宝信息技术有限公司 | Fan rotating speed control method and device |
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| JP2001056724A (en) * | 1999-08-18 | 2001-02-27 | Nec Niigata Ltd | Cooling system for personal computer |
| US6592449B2 (en) * | 2001-02-24 | 2003-07-15 | International Business Machines Corporation | Smart fan modules and system |
| US6931306B2 (en) * | 2002-06-20 | 2005-08-16 | Minebea Co., Ltd. | System and method of designing cooling fans |
| US20050030171A1 (en) * | 2003-08-06 | 2005-02-10 | Tse-Hung Liu | Cooling system for computing device |
| TWI291609B (en) * | 2006-01-10 | 2007-12-21 | Giga Byte Tech Co Ltd | Methods of controlling fan speed |
| CN102478935A (en) * | 2010-11-29 | 2012-05-30 | 英业达股份有限公司 | rack server system |
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