TWI495794B - Fan controlling method and electronic device - Google Patents

Description

Fan control method and electronic device

The present invention relates to a control method and an electronic device, and more particularly to a fan control method and an electronic device in which a fan is mounted.

Generally speaking, most of the cooling fans installed inside the electronic device are set in the full-speed rotation mode, and the fan operation is performed when the electronic device operates. A few electronic devices provide three or four stages of fixed fan operation modulation for the user to choose to use different fan operating speeds as the operating temperature of the electronic device changes. In addition, there are a few cases where the user can manually adjust the operating speed of each fan in the electronic device.

However, different brands, different functional fans, and different mounting positions of the fan in the electronic device enable the fan to provide different heat dissipation effects, that is, the fan has different effects under the influence of the respective operating characteristics and the external mounting position. The temperature corresponds to the parameter curve of the fan rotation speed. Therefore, the above-mentioned conventional fan full-speed rotation mode, three- to four-stage fixed fan operation modulation, and manual adjustment by the user cannot optimize the ratio of power consumption to the heat dissipation performance, thereby causing waste of power of the electronic device.

The present invention provides a fan control method for intelligently controlling fan clusters in an electronic device to provide appropriate heat dissipation, which can improve fan bundle performance and reduce power consumption.

The present invention provides a fan control method. The method for controlling an electronic device includes: performing a calibration procedure for each fan to obtain a fan operation information of the fan and a power output-fan speed parameter of the fan. Confirm each fan in the electronic device, the corresponding corresponding installation location. Confirm the working mode of the electronic device. For each fan, according to the operation information of the fan, the power output-fan speed parameter, the installation position corresponding to the fan, and the working mode, a temperature-power correspondence between a working temperature of the processor and a fan rotating power of the fan is calculated. parameter. The fan is controlled in an operating state of the electronic device according to the temperature-power corresponding parameter corresponding to each fan.

In the present invention, the fan control method described above, wherein each fan is confirmed in the electronic device, and the respective corresponding installation positions include: receiving a setting signal to set a mounting position of each fan in the electronic device.

In the present case, the fan control method described above, wherein the working mode comprises a standard mode, a quiet mode or a fan high performance mode.

In the present invention, the fan control method, wherein the temperature-power corresponding parameter corresponding to each fan is a discontinuous parameter curve of the fan rotational power of each fan corresponding to the operating temperature of the processor, and the discontinuous parameter curve includes at least A curve slope turning point.

In the present invention, the fan control method described above, wherein the curve slope turning point in the discontinuous parameter curve corresponding to each fan includes a fan rotation power corresponding to a working efficiency of the processor of 50% and an operating temperature of the processor.

In the present case, the above fan control method further includes: changing the electronic The mode of operation of the device. For each fan, the temperature-power corresponding parameters are recalculated according to the fan operation information of the fan, the power output-fan speed parameter, the installation position corresponding to the fan, and the changed working mode. The fan is controlled in an operating state of the electronic device according to the recalculated temperature-power corresponding parameter of each fan.

In the present case, the fan control method described above further includes: changing a position of at least one of the fans. Re-calibrate the program to obtain fan operation information for each fan after changing the position and the power output-fan speed parameter for each fan. For each fan, the temperature-power corresponding parameter is recalculated based on the obtained changed fan operation information and the power output-fan speed parameter, the installation position corresponding to the fan, and the changed operating mode. The fan is controlled in an operating state of the electronic device according to the recalculated temperature-power corresponding parameter of each fan.

In the present invention, the fan control method described above, wherein the step of changing at least one of the fans comprises removing at least one of the fans or replacing at least one of the fans.

In an embodiment of the present invention, the fan control method, wherein the fan operation information of each fan includes a combined turning point output power, a turning point speed, and a stall point output power corresponding to each fan.

Another electronic device is provided in the present invention, comprising: a storage device, at least one fan, and a processor. The storage device stores a computer readable and writable program. The processor is coupled to the fan and the storage device and executes a plurality of instructions of the computer readable and writable program. The instructions include: performing a calibration procedure for each fan to obtain a fan operating information of the fan and a power output of the fan - Fan speed parameter. Confirm that each fan is in an electronic device, and an individual corresponding installation position. Confirm an operating mode of the electronic device. For each fan, a temperature-power between a working temperature of the processor and a fan rotating power of the fan is calculated according to the fan running information of the fan, the power output-fan speed parameter, the installation position corresponding to the fan, and the working mode. Corresponding parameters. The fan is controlled in an operating state of the electronic device according to the temperature-power corresponding parameter corresponding to each fan.

In the present invention, in the above electronic device, wherein the instructions for confirming each of the fans in the electronic device, the respective corresponding installation positions include: receiving a setting signal to set a mounting position of each fan in the electronic device.

In the present case, the electronic device described above, wherein the working mode comprises a standard mode, a quiet mode or a fan high performance mode.

In the present invention, the electronic device, wherein the temperature-power corresponding parameter corresponding to each fan is a discontinuous parameter curve of the fan rotational power of each fan corresponding to the operating temperature of the processor, and the discontinuous parameter curve includes at least one Curve slope turning point.

In the present invention, in the above electronic device, the curve slope turning point in the discontinuous parameter curve corresponding to each fan individually includes the fan rotation power corresponding to a working efficiency of the processor of 50% and the operating temperature of the processor.

In the present invention, the electronic device described above, wherein the command further comprises: changing an operating mode of the electronic device. For each fan, the temperature-power corresponding parameters are recalculated according to the fan operation information of the fan, the power output-fan speed parameter, the installation position corresponding to the fan, and the changed working mode. according to The recalculated temperature-power corresponding parameter of each fan controls the fan under the operating state of the electronic device.

In the present invention, the electronic device, wherein the command further comprises: changing a position of at least one of the fans. Re-calibrate the program to obtain fan operation information for each fan after changing the position and the power output-fan speed parameter for each fan. For each fan, the temperature-power corresponding parameter is recalculated based on the obtained changed fan operation information and the power output-fan speed parameter, the installation position corresponding to the fan, and the changed operating mode. The fan is controlled in an operating state of the electronic device according to the recalculated temperature-power corresponding parameter of each fan.

In the present invention, in the above electronic device, wherein the command to change at least one of the fans comprises removing at least one of the fans or replacing at least one of the fans.

In the present invention, in the above electronic device, the fan operation information of each fan includes a combined turning point output power, a turning point speed, and a stall point output power corresponding to each fan.

Based on the above, in this case, each fan in the fan cluster is calibrated to obtain the operating characteristics of individual fans (fan operation information, power output - fan speed parameter). In addition, considering the fan installation position of each fan and the electronic device operating mode preferred by the user, a temperature-power corresponding parameter corresponding to the processor temperature can be comprehensively calculated. Furthermore, by using the temperature-power corresponding parameter of each fan, the operating state of each fan in the fan cluster is intelligently adjusted to provide appropriate heat dissipation efficiency and optimal power utilization during operation of the electronic device to improve Fan cluster performance and drop Low electronic device power consumption.

FIG. 1 is a schematic flow chart of a fan control method according to an embodiment of the present invention. The fan control method of this embodiment is applicable to an electronic device. That is, it is applicable to a fan cluster including at least one fan inside the control electronic device on an electronic device. The electronic device is, for example, a personal computer or a terminal server. In addition, the electronic device further includes a processor. Referring to FIG. 1, in step S101, a calibration procedure is performed for each fan in the fan cluster to obtain individual fan operation information of each fan and individual power output-fan speed parameters of each fan. Each of the fans includes a starting point output power corresponding to each fan (that is, an output power of the external power supply when the fan is turned up), a turning point speed, and a stall point output power (ie, a fan in it) The output power of the external power supply when stalling). In other words, a gradient change voltage or a linearly varying voltage is applied to each fan in the fan cluster to obtain the fan speed at different voltages, the output power at the time of fan rotation, the spin speed, and the fan stall. Output power.

2 is a diagram showing a list of power output-fan speed parameters obtained via a calibration procedure in accordance with an embodiment of the present invention. Referring to FIG. 2, in this embodiment, the output power of the external power supply, which varies from 0 to 100, is obtained to obtain the change of the fan speed of the single fan under the output power of different external power sources. The maximum speed is up to 4420 rpm, and the rotational speed is 1535 rpm in the case where the output power of the external power source is zero.

Thereafter, referring to FIG. 1, in step S105, it is confirmed that each of the fans is in the electronic device, and the respective corresponding mounting positions. For example, the user can set the position of each fan in the electronic device. FIG. 3 is a schematic diagram showing various mounting positions of the fan in the electronic device. Referring to FIG. 3, the fan mounting position (for example, based on the host operating surface of the electronic device) includes a front position 3a, a rear position 3b, a side position 3c, an upper position 3d, a lower position 3e, and a processor position 3f. That is, the user can set/specify the respective installation positions of each fan by the above example.

Next, in step S111, an operation mode of the electronic device is confirmed. The above working mode includes a standard mode, a quiet mode or a fan high performance mode. That is, the user sets the working mode of the electronic device according to the usage habits of each person. For example, when the user prefers that the electronic device has a small machine operation sound when executed, the operating mode of the electronic device can be set to the quiet mode. In addition, when the user prefers the electronic device to execute the application under high running performance, the operating mode of the electronic device can be set to the fan high-efficiency mode, and the heat-dissipating effect can be achieved by the fan running efficiently.

Then, in step S115, for each fan, according to the obtained fan operation information, the power output-fan rotation speed parameter, the installation position corresponding to the fan, and the confirmed operation mode of the electronic device, the operation of the processor is calculated. A temperature-power corresponding parameter between the temperature and the fan's rotational power of the fan. 4 is a temperature-power corresponding parameter diagram between an operating temperature of a processor and a fan rotating power of a single fan according to an embodiment of the present invention. Please refer to Figure 4, the temperature-power pair corresponding to each fan The parameter should be, for example, a discontinuous parameter curve 402 corresponding to the operating temperature of the processor for the fan rotational power of each fan. It is worth noting that the discontinuous parameter curve includes at least one curve slope turning point. The curve inflection point of this curve includes the fan rotation power corresponding to the processor's operating efficiency of 50% and the operating temperature of the processor (ie, the turning point 404 in FIG. 4).

For example, when the operating temperature of the processor is lower than the turning point 404 corresponding to the working performance of the processor being 50%, the slope of the parameter curve of the fan rotating power corresponding to the operating temperature of the processor is smaller than the fan rotation of the working temperature higher than the turning point 404. The slope of the power curve corresponding to the operating temperature of the processor. That is, when the operating temperature of the processor is lower than the turning point 404, the amount of change in the rotational power of the fan caused by the change in the operating temperature is small. That is to say, the strain working temperature is increased, and the variation of the fan rotational power does not need to be too high, so that the heat dissipation effect required by the operating mode of the electronic device preferred by the user can be achieved.

When the operating temperature of the processor is higher than the turning point 404, the change in the rotational power of the fan caused by the change in the operating temperature is large. That is to say, the strain working temperature is increased, and the variation of the fan rotating power is increased to achieve better heat dissipation. More specifically, according to the respective operating characteristics of each fan (fan operation information, power output - fan speed parameter), fan installation position, and electronic device operating mode, each fan of the electronic device is intelligently adjusted as the operating temperature changes. The fan rotates the power to better suit the user's preferred electronic device operating mode, achieving a more energy-saving and energy-saving effect.

Then, in step S121, according to the temperature-power corresponding parameter corresponding to each fan, each wind is controlled in an operating state of the electronic device. fan. That is, the processor detects the message according to the received temperature (for example, detecting a working temperature of the processor by a temperature detector), and automatically adjusting each according to the temperature-power corresponding parameter corresponding to each fan. The rotational power of the fan.

In the above embodiment, after the calibration procedure (step S101), confirming the position of the fan (step S105), and confirming the operation mode of the electronic device (step S111), the processor is calculated according to the information obtained in the foregoing steps. The temperature corresponds to the temperature-power parameter of each fan. However, the invention is not limited thereto. In another embodiment, after the calibration procedure (step S101) and the confirmation of the position of the fan (step S105), the fan operation information, the power output-fan speed parameter of each fan obtained, and the corresponding The installation location initially calculates the temperature-power corresponding parameter between the operating temperature of the processor and the fan rotational power of each fan. Next, after confirming the operation mode of the electronic device (step S111), the temperature-power corresponding parameter between the operating temperature of the processor and the fan rotation power of each fan is fine-tuned according to the set operation mode of the electronic device.

In addition, in the above embodiment, when the user assembles the electronic device by himself, the fan control method can be used to install the fan in various parts of the electronic device according to individual needs and performance of each fan, thereby The best effect of the fan. However, the case is not limited to this. The present invention can also be applied to the operation of each fan that is re-controlled when the user changes the working mode of at least one of the fans or the electronic device.

FIG. 5 is a schematic flow chart of a fan control method according to still another embodiment of the present invention. Please refer to FIG. 5, in the electronic device according to each fan pair When the temperature-power corresponding parameter is used to control the state of each fan (step S121 of FIG. 1), the user changes the operation mode of the electronic device (S525). For example, switching from the standard operating mode to the quiet mode. Then, in step S531, for each fan in the electronic device, according to the fan operation information obtained before, the power output of the fan, the fan speed parameter, the installation position of the fan, and the current working mode, the corresponding fan is recalculated. Temperature-power corresponds to the parameter. Next, in step S535, all the fans are controlled in the operating state of the electronic device according to the corresponding temperature-power corresponding parameters of each fan.

FIG. 6 is a schematic flow chart of a fan control method according to still another embodiment of the present disclosure. Referring to FIG. 6, in still another embodiment, in any case (for example, the state of each fan is controlled according to the temperature-power corresponding parameter corresponding to each fan in the electronic device shown in step S121 of FIG. Next, once the user changes at least one fan in the electronic device (step S601), the fan is recalibrated (step S605) to regain the operation information of the single fan and the corresponding power output-fan speed parameter. . The at least one fan in the electronic device is changed, for example, by removing at least one fan or replacing at least one fan.

In the state that the position of the fan is not further changed and the operating mode of the electronic device is changed, the operation information of the retrieved fan and the corresponding power output-fan speed parameter and the previously confirmed fan are obtained in step S611. The position and the operating mode of the electronic device recalculate the operating temperature of the processor and the temperature-power corresponding parameters of each fan. Then, in step S615, again according to the above steps The temperature-power corresponding parameter corresponding to each fan controls the operation of all the fans under the operating state of the electronic device.

FIG. 7 is a schematic diagram of an electronic device according to an embodiment of the present invention. In this embodiment, the foregoing fan control method can be implemented by the electronic device executing a computer readable and writable program. Referring to FIG. 7, the electronic device 700 includes a storage device 702, a fan cluster 704 (including at least one fan, such as fans 704a, 704b, 704c, 704d, 704e, and 704f), and a processor 706. The storage device 702 stores a computer readable and writable program. The storage device 702 is, for example, a non-volatile memory (including a flash memory). The processor 706 is coupled to the fan cluster 704 and the storage device 702. And executing a plurality of instructions of the computer readable and writable program to implement the fan control method in the foregoing embodiment (including steps S101 to S121, S525 to S535, and S601 to S615). Since the detailed steps of the fan control method have been described in detail in the foregoing embodiments, they are not described herein.

In summary, in this case, each fan in the fan cluster is calibrated to obtain the operating characteristics of individual fans (fan operation information, power output - fan speed parameter). In addition, considering the fan installation position of each fan and the electronic device operating mode preferred by the user, a temperature-power corresponding parameter corresponding to the processor temperature can be comprehensively calculated. Furthermore, by using the temperature-power corresponding parameter of each fan, the operating state of each fan in the fan cluster is intelligently adjusted to provide appropriate heat dissipation efficiency and optimal power utilization during operation of the electronic device to improve The fan clusters the performance and reduces the power consumption of the electronic device.

Although the present disclosure has been disclosed above by way of example, it is not intended to limit the present. The scope of the present invention is defined by the scope of the appended claims, which are defined by the scope of the appended claims. quasi.

S101~S121, S525~S535, S601~S615‧‧‧ method flow steps

3a‧‧‧ front position

3b‧‧‧ rear position

3c‧‧‧ side position

3d‧‧‧Upper position

3e‧‧‧ below position

3f‧‧‧ processor location

402‧‧‧discontinuous parameter curve

404‧‧‧ turning point

700‧‧‧Electronic devices

702‧‧‧Storage device

704‧‧‧fan cluster

704a, 704b, 704c, 704d, 704e, 704f‧‧‧ fans

706‧‧‧ processor

FIG. 1 is a schematic flow chart of a fan control method according to an embodiment of the invention.

2 is a diagram showing a list of power output-fan speed parameters obtained via a calibration procedure in accordance with an embodiment of the present invention.

FIG. 3 is a schematic diagram showing various mounting positions of the fan in the electronic device.

4 is a temperature-power corresponding parameter diagram between an operating temperature of a processor and a fan rotating power of a single fan according to an embodiment of the invention.

FIG. 5 is a schematic flow chart of a fan control method according to still another embodiment of the present invention.

FIG. 6 is a schematic flow chart of a fan control method according to an embodiment of the invention.

FIG. 7 is a schematic diagram of an electronic device according to an embodiment of the invention.

S101~S121‧‧‧ method flow steps

Claims (18)

A fan control method is suitable for controlling at least one fan of an electronic device, wherein the electronic device further includes a processor, the method comprising: performing a calibration procedure for each fan to obtain a fan operation information of the fan and a power output-fan speed parameter of the fan; confirming an installation position of each fan in the electronic device; confirming an operating mode of the electronic device; and for each fan, according to the operation information of the fan, The power output-fan speed parameter, the installation position of the fan, and the working mode, calculating a temperature-power corresponding parameter between an operating temperature of the processor and a fan rotating power of the fan; and according to each fan The temperature-power corresponding parameter controls the fans in an operating state of the electronic device. The fan control method of claim 1, wherein the confirming the installation position of each fan in the electronic device comprises: receiving a setting signal to set the installation position of each fan in the electronic device. The fan control method of claim 1, wherein the working mode comprises a standard mode, a quiet mode or a fan high performance mode. The fan control method of claim 1, wherein the temperature-power corresponding parameter corresponding to each fan is a discontinuous parameter of the fan rotation power of each fan corresponding to the operating temperature of the processor. A curve, and the discontinuous parameter curve includes at least one curve slope turning point. The fan control method of claim 4, wherein the slope of the curve in the discontinuous parameter curve corresponding to each fan individually includes the fan rotation corresponding to a working efficiency of the processor of 50%. Power is the operating temperature of the processor. The fan control method of claim 1, further comprising: changing an operating mode of the electronic device; for each fan, according to the operating information of the fan, the power output-fan speed parameter, and the installation position of the fan And changing the working mode, recalculating the temperature-power corresponding parameter; and controlling the fans according to each of the temperature-power corresponding parameters. The fan control method of claim 1, further comprising: changing a position of at least one of the fans; performing the calibration procedure to obtain operation information of each fan after changing the position, and each fan The power output-fan speed parameter; for each fan, recalculating the temperature-power corresponding parameter according to the operation information of the fan and the power output-fan speed parameter, the installation position of the fan, and the changed working mode; The fans are controlled according to the temperature-power corresponding parameter. The fan control method of claim 7, wherein the step of changing the position of at least one of the fans comprises removing at least one of the fans or replacing at least one of the fans. The fan control method of claim 1, wherein the fan operation information of each fan includes a common point output power, a turning point speed, and a stall point output power corresponding to each fan. An electronic device comprising: a storage device for storing a computer readable and writable program; at least one fan; a processor coupled to the fan and the storage device and executing a plurality of instructions of the computer readable and writable program, wherein the The command includes: performing a calibration procedure for each fan to obtain operation information of the fan and a power output-fan speed parameter of the fan; reading a position of each fan in the electronic device; and reading the electronic device a working mode; calculating a temperature between an operating temperature of the processor and a fan rotating power of the fan according to the operating information of the fan, the power output-fan speed parameter, the fan mounting position, and the working mode - The power corresponding parameter; and controlling the fans according to the temperature-power corresponding parameter. The electronic device of claim 10, wherein each fan is confirmed in the electronic device, and the respective corresponding instructions of the installation position include: receiving a setting signal to set each fan in the electronic device. position. The electronic device of claim 10, wherein the working mode comprises a standard mode, a quiet mode or a fan high performance mode formula. The electronic device of claim 10, wherein the temperature-power corresponding parameter corresponding to each fan is a discontinuous parameter curve of the fan rotational power of each fan corresponding to the operating temperature of the processor, And the discontinuous parameter curve includes at least one curve slope turning point. The electronic device of claim 13, wherein the slope inflection point of the curve in the discontinuous parameter curve corresponding to each fan individually comprises the fan rotation power corresponding to a working efficiency of the processor of 50%. The operating temperature with the processor. The electronic device of claim 10, wherein the instructions further comprise: changing the working mode of the electronic device; and for each fan, according to the fan running information, the power output-fan speed parameter, the fan And corresponding to the installation position and the working mode, recalculating the temperature-power corresponding parameter; and controlling the fans according to the temperature-power corresponding parameter. The electronic device of claim 10, wherein the instructions further comprise: changing a position of at least one of the fans; and performing the calibration procedure to obtain the changed fan operation information and the power output of the fan - a fan speed parameter; for each fan, recalculating the temperature-power corresponding parameter according to the obtained changed fan operation information, the power output-fan speed parameter, the installation position corresponding to the fan, and the working mode; as well as The fans are controlled according to the temperature-power corresponding parameter. The electronic device of claim 16, wherein the command to change the position of at least one of the fans comprises removing at least one fan or replacing at least one fan. The electronic device of claim 10, wherein the fan operation information of each fan comprises a common point output power corresponding to the fan, a turning point speed, and a stall point output power.