Rotating speed control method and device

A speed control and speed technology, applied in the direction of electric speed/acceleration control, etc., can solve the problems of shortening the service life of the rotating device and related hardware, switching the device speed back and forth, reducing system reliability, etc., to achieve temperature stability and prolong use Effects of life and shortened service life

Inactive Publication Date: 2011-09-07
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the related art, the switching temperature point of the rotation speed of the rotating device (such as a fan) is easy to cause the rotation speed of the device to switch back and forth, resulting in constant changes in the temperature of related

Method used

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  • Rotating speed control method and device
  • Rotating speed control method and device

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0029] Example one

[0030] In view of the defects of the existing fan speed control methods, this example provides a fan speed control method, aiming to eliminate the defects of these existing methods. Under the conditions of ensuring the safe heat dissipation of equipment and minimizing equipment noise, the reliability of the system is further improved.

[0031] The principle of the technical solution adopted in this example can be found in figure 2 , For the convenience of description, define here figure 2 The principle shown is multi-stage speed regulation with return difference. The specific implementation plan is as follows:

[0032] Set the speed corresponding to a certain temperature range. The minimum and maximum values ​​corresponding to each temperature range are Tax and Tbx (x=1, 2,..., n; n is the number of sections divided by temperature), and the rotation speed corresponding to the range from Tax to Tbx is Nx. Different from the existing speed control method, when...

Example Embodiment

[0047] Example two

[0048] This example can be implemented based on the technical principle described in Example 1, and the principles of related steps can be referred to the description in Example 1, which will not be repeated in this example. Such as Figure 5 As shown, the fan speed control method in this example includes:

[0049] In step S502, a plurality of temperature intervals with return difference are set, and a rotation speed corresponding to each temperature interval is defined. For the specific implementation principle, please refer to the relevant description in the example, which will not be repeated here.

[0050] Step S504: Read the system temperature.

[0051] Step S506: Determine which temperature interval the read system temperature falls into and record the determined temperature interval.

[0052] Step S508, read the outside temperature again.

[0053] In step S510, it is judged whether the external temperature read in S508 falls within the temperature range reco...

Example Embodiment

[0057] Example three

[0058] This example provides a method for controlling the speed of a communication device fan that can be applied to a communication room. The above-mentioned communication equipment is internally composed of a main control board, a fan control board and several other single boards, and the fan speed control is completed on the fan control board. Since there is no more precise requirement for the temperature, the fan speed is divided into 4 temperature ranges, that is, 4 levels. As shown in Table 1.

[0059] Table 1 Correspondence between temperature range and fan speed

[0060] Temperature range

[0061] The following are the setting conditions of the fan speed adjustment of the fan control board:

[0062] The minimum speed of the system is controlled at 1200RPM, and the maximum speed is 3000RPM.

[0063] The speed difference from low temperature to high temperature is 300RPM, 600RPM, and 900RPM respectively.

[0064] Return difference Δ=4℃ (it is the test r...

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Abstract

The invention provides a rotating speed control method and device, wherein the method comprises the following steps of: orderly dividing a predetermined temperature range into a plurality of temperature regions, wherein each temperature region corresponds to a rotating speed, and a temperature overlapping range is formed between two adjacent temperature regions; obtaining the current external temperature; and maintaining the current rotating speed when the external temperature falls in the temperature region corresponding to the current rotating speed. By using the technical scheme in the invention, the problems that the device rotating speed is easy to switch back and forth at a switching temperature point of the rotating speed of a rotating device (such as a fan) in the relative technology, the temperature of the relative hardware is continuously changed, the service life of the rotating device and the relative hardware is shortened, and the reliability of the system is reduced are solved, thereby achieving the effect of stabilizing the temperature of the relative hardware, prolonging the service life of the rotating device and the relative hardware, and improving the reliability of the system.

Description

technical field [0001] The present invention relates to the field of electronic communication, in particular, to a speed control method and device. Background technique [0002] At present, in some electronic equipment, the rotation speed of some devices is often adjusted according to the actual temperature to achieve the purpose of cooling or heating up. As the environment changes, it is necessary to balance heat dissipation, noise, and power consumption through fan speed regulation. In view of this, some methods for controlling the fan speed have been developed. At present, there are mainly two methods, one is target temperature speed regulation, and the other is non-overlapping multi-stage speed regulation. But both methods have their drawbacks. Target temperature speed regulation will cause the fan speed to not increase when the temperature is high or reach the maximum speed at a low temperature, thereby reducing the sensitivity of speed regulation to temperature and ...

Claims

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Application Information

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IPC IPC(8): G05D13/62
Inventor 缪浦辉
Owner ZTE CORP
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