Method and device for speed regulation of a controllable fan

A technology of a speed regulating device and a speed regulating method, which is applied in the direction of control/regulation system, pump control, control system, etc., and can solve problems such as fluctuations in fan speed

Active Publication Date: 2019-11-05
NANJING ZHONGXING SOFTWARE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a controllable fan speed regulation method and device to solve the problem that the fan speed fluctuates up and down in the prior art

Method used

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  • Method and device for speed regulation of a controllable fan
  • Method and device for speed regulation of a controllable fan
  • Method and device for speed regulation of a controllable fan

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Experimental program
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Embodiment 1

[0036] The inventors of the present application found through analysis that when the temperature of the device rises and exceeds the predetermined range, the fan speed needs to be increased in order to ensure the normal operation of the system; Speed ​​fluctuations. Therefore, a separate logic process needs to be used to control the process of adjusting the fan speed downward, for example, a robust parameter R is introduced in the process of reducing the fan speed. R can act on the speed regulation cycle, and only after R speed regulation cycles have passed, the control logic controls the fan to perform the action of reducing the speed. In this way, by introducing the robust parameter R, the temperature of the device and the fan speed can be in the best balance state, and when the power consumption of the device and the ambient temperature change greatly, the fan speed and the temperature of the device can reach a balance state as soon as possible.

[0037] Based on the above...

Embodiment 2

[0067] This embodiment provides a speed regulation method of a controllable fan, which mainly includes the following operations:

[0068] Whenever the speed regulating device of the controllable fan makes a decision to reduce the speed of the fan, the speed regulating device of the controllable fan judges whether the current value of the first robust parameter is greater than the first preset threshold value;

[0069] If the current value of the first robust parameter is equal to the first preset threshold value, directly perform the operation of reducing the fan speed;

[0070] If the current value of the first robust parameter is greater than the first preset threshold value, the current value of the first robust parameter is decremented according to the preset method, and then waits for the speed regulating device of the controllable fan to make the need to lower the fan again speed determination.

[0071] In addition to introducing robust parameters in the process of redu...

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Abstract

A speed regulation method for a controllable fan, at least comprising: whenever a speed regulation device for a controllable fan makes a decision that a rotational speed of the fan needs to be decreased, if the speed regulation device for the controllable fan judges that a current value of a first robust parameter (R2) is equal to a first pre-set threshold value, directly performing the operation of decreasing the rotational speed of the fan; if the current value of the first robust parameter is greater than the first pre-set threshold value, progressively decreasing the current value of the first robust parameter according to a pre-set method, and then waiting until the speed regulation device for the controllable fan makes the decision again that the rotational speed of the fan needs to be decreased; and when the rotational speed of the fan is increased, making the same judgement as stated above by adopting a second robust parameter (R1) and a second pre-set threshold value, and performing the corresponding operations of progressively decreasing a current value of the second robust parameter and increasing the rotational speed of the fan. A speed regulation device for a controllable fan uses this method. The method adopts different control methods when the temperature of a heating device increases and decreases, thereby ensuring the proper functioning of a target system, and enabling a cooling device and the heating device to maintain a stable equilibrium state.

Description

technical field [0001] The invention relates to a heat dissipation mechanism of equipment in a data communication network, in particular to a speed regulation scheme of a controllable fan. Background technique [0002] In the data communication network, the power consumption of the equipment is relatively large, especially for some high-end router equipment that undertakes important business nodes, and a good heat dissipation mechanism is required to ensure its normal operation. At present, most devices have certain automatic control capabilities. When the power consumption of the device and the ambient temperature are high, the fan will run at high speed to improve heat dissipation efficiency; when the power consumption of the device or the ambient temperature is low, the fan will run Low-speed operation reduces fan noise. Such a control method has a problem, that is, when the power consumption of the device or the ambient temperature changes in a short period of time, the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D27/00
CPCF04D27/02G05D13/00H02P7/00H02P8/00
Inventor 张建春
Owner NANJING ZHONGXING SOFTWARE
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