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Method, device and system for controlling fan rotation speed

A technology of fan speed and control method, which is applied in the electronic field and can solve problems such as inability to cool business boards and cards

Active Publication Date: 2017-02-22
RUIJIE NETWORKS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a fan speed control method, device, and system, which are used to solve the problem that the temperature of service boards with different calorific values ​​cannot be separately cooled by adopting a unified control of the fan speed

Method used

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  • Method, device and system for controlling fan rotation speed
  • Method, device and system for controlling fan rotation speed
  • Method, device and system for controlling fan rotation speed

Examples

Experimental program
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Embodiment 1

[0025] An embodiment of the present invention provides a fan speed control method, which is applied to the above fan speed control system. Refer to figure 2 As shown in , the method includes:

[0026] S101. Obtain the highest measured temperature of the hot spot of the service board.

[0027] It can periodically poll and read the temperature values ​​of each heating point on each service board. The polling cycle can be 1s, 2s, etc., which is not limited here. The polling sequence can be performed according to the slot number of the service board, from the first slot to the last slot. The hot spot in each slot can be polled according to the serial number of the hot spot.

[0028] Specifically, refer to image 3 As shown in , step S101 includes steps S1011-S1012:

[0029] S1011. Periodically traverse the slot number of the slot where each service board is located and the serial number of the hot spot corresponding to the slot.

[0030] S1012. Measure the current measured ...

Embodiment 2

[0057] An embodiment of the present invention provides a fan speed control device, which is applied to the above fan speed control method, as figure 1 The fan speed control device shown in 11, refer to Figure 4 As shown, the device includes:

[0058] Acquisition unit 1101, configured to acquire the highest measured temperature of the heating point of the service board;

[0059] The determination unit 1102 is configured to determine the maximum rotational speed of the sub-fan corresponding to the heating point of the service board according to the highest measured temperature and the ambient temperature obtained by the acquisition unit 1101;

[0060] The adjustment unit 1103 is configured to increase the speed of the corresponding sub-fan if the maximum speed of the corresponding sub-fan determined by the determining unit 1102 is higher than the current speed of the corresponding sub-fan, and if the maximum speed of the corresponding sub-fan is lower than the current speed of...

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Abstract

The invention discloses a method, device and system for controlling a fan rotation speed, relates to the technical field of electronics and is used to solve the problem that service board cards with different heating values cannot be cooled through uniform fan rotation speed control respectively. The method for controlling the fan rotation speed comprises the steps that the highest measurement temperature of a heating point of a service board card is acquired; according to the highest measurement temperature and an environmental temperature, the highest rotation speed of a subordinate fan corresponding to the heating point of the service board card is determined; and the rotation speed of the corresponding subordinate fan is increased if the highest rotation speed of the corresponding subordinate fan is higher than a current rotation speed of the corresponding subordinate fan, and the rotation speed of the corresponding subordinate fan is reduced if the highest rotation speed of the corresponding subordinate fan is lower than the current rotation speed of the corresponding subordinate fan. The embodiment of the invention is applied to separate fan control.

Description

technical field [0001] The present invention relates to the field of electronic technology, in particular to a fan speed control method, device and system. Background technique [0002] In large-scale chassis-type communication equipment, it is generally required to support a variety of different service boards. The chip type and layout of each board may be different, so different service boards have different heat dissipation requirements. At present, the temperature of service boards is mainly cooled by air cooling or water cooling. [0003] When air-cooling is used for cooling, the degree of cooling is mainly controlled by controlling the fan speed. In general, large-scale chassis-type communication equipment usually requires boards that support multiple different services. The chip type and layout of each service board may be different, so not only the heating position is not fixed, but also the heat generation is also different. Different service boards have different...

Claims

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Application Information

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IPC IPC(8): G06F1/20
CPCG06F1/206
Inventor 章建钦
Owner RUIJIE NETWORKS CO LTD