KR20100013404A - Apparatus and method for controlling surface temperature in a computing equipment - Google Patents

Apparatus and method for controlling surface temperature in a computing equipment Download PDF

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Publication number
KR20100013404A
KR20100013404A KR1020080074906A KR20080074906A KR20100013404A KR 20100013404 A KR20100013404 A KR 20100013404A KR 1020080074906 A KR1020080074906 A KR 1020080074906A KR 20080074906 A KR20080074906 A KR 20080074906A KR 20100013404 A KR20100013404 A KR 20100013404A
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KR
South Korea
Prior art keywords
surface temperature
power saving
saving mode
devices
temperature
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KR1020080074906A
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Korean (ko)
Inventor
양치환
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삼성전자주식회사
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Priority to KR1020080074906A priority Critical patent/KR20100013404A/en
Publication of KR20100013404A publication Critical patent/KR20100013404A/en

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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/1927—Control of temperature characterised by the use of electric means using a plurality of sensors
    • G05D23/1928—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperature of one space
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/20—Cooling means
    • G06F1/206—Cooling means comprising thermal management
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3206—Monitoring of events, devices or parameters that trigger a change in power modality
    • G06F1/3215—Monitoring of peripheral devices
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3234—Power saving characterised by the action undertaken
    • G06F1/3287—Power saving characterised by the action undertaken by switching off individual functional units in the computer system

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • Automation & Control Theory (AREA)
  • Power Sources (AREA)

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to surface temperature control of a computing device having a plurality of devices, wherein at least one temperature sensor for measuring the surface temperature and the surface temperature measured by the temperature sensor are above an upper threshold of the surface temperature. If large, a control unit for transitioning at least one of the plurality of devices to the power saving mode according to the priority, by sequentially shifting the devices to the power saving mode according to the priority when the surface temperature rises, thereby reducing the performance of the computing device At the same time, it is possible to efficiently control the surface temperature of the computing device.

Description

APPARATUS AND METHOD FOR CONTROLLING SURFACE TEMPERATURE IN A COMPUTING EQUIPMENT

TECHNICAL FIELD The present invention relates to computing devices, and more particularly, to apparatus and methods for controlling surface temperature in computing devices.

In computing devices such as electronics, electricity, telecommunications machines / instruments, etc., the problem of handling the heat generated during operation of the device is very important. Not only are the devices damaged by overheating, but there is also a risk of fire in some cases. In addition, since heat generation has a great influence on the operation performance, efficiency, reliability, and the like of the device, an alternative method for effectively treating heat must be devised.

In general, as a means for solving heat generation, a method of physically contacting the heat generating portion and cold air using a fan is used. That is, a method of sensing an ambient temperature requiring cooling and driving a cooling fan according to the sensed temperature value is used. In solving the heat generation problem of the device by using a fan, the problem of reducing the heat generation of the device based on portability, such as a portable computer, should be accompanied by consideration of the user's device environment as well as the above. For example, when a portable computer is used in contact with the human body, that is, placed on a lap or with a hand on the device, high temperature heat is transmitted to the human body, which causes the user to feel uncomfortable. Will have

As described above, the heat generation in the computing device acts as a factor that causes the performance degradation of the device and the user's inconvenience in using the device. Accordingly, there is a need for an alternative for efficiently preventing heat generation in a computing device while all of the above-described problems are considered.

Accordingly, an object of the present invention is to provide an apparatus and method for effectively preventing heat generation in a computing device.

Another object of the present invention is to provide an apparatus and method for lowering the surface temperature through device-specific control in a computing device.

It is yet another object of the present invention to provide an apparatus and method for lowering surface temperature by transitioning devices to a power saving mode when the surface temperature rises in a computing device.

It is yet another object of the present invention to provide an apparatus and method for selecting a device to transition to a power saving mode according to priority in a computing device.

It is yet another object of the present invention to provide a camouflage device and method for maintaining the performance of the computing device within an acceptable surface temperature range of the computing device.

According to a first aspect of the present invention for achieving the above object, a computing device device having a plurality of devices, at least one temperature sensor for measuring the surface temperature, and the surface temperature measured by the temperature sensor Is greater than the upper limit threshold of the surface temperature, the control unit for transitioning at least one of the plurality of devices to the power saving mode according to the priority.

According to a second aspect of the present invention for achieving the above object, the method for controlling the surface temperature of a computing device having a plurality of devices, measuring the surface temperature, and the surface temperature measured by the temperature sensor is the surface temperature If greater than the upper limit of the threshold, it characterized in that it comprises the step of transitioning at least one of the plurality of devices to the power saving mode according to the priority.

When the surface temperature rises in the computing device, the devices are sequentially shifted to the power saving mode according to the priority, thereby minimizing performance degradation of the computing device and efficiently controlling the surface temperature of the computing device.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

The present invention describes a technique for controlling surface temperature in a computing device.

The computing device according to the present invention performs the temperature control operation according to the magnitude of the temperature value measured by the provided temperature sensor. In this case, the computing device controls temperature by reducing power consumption of internal devices, that is, transitioning internal devices to a power saving mode. However, when the device transitions to a power saving mode, the temperature occurring in the device drops, but the performance of the device decreases. Thus, to minimize performance degradation of the computing device as a whole due to reduced performance of the devices, the computing device sequentially transitions the devices to the power save mode according to a preset priority.

The priority is determined according to a loss indicator and a gain indicator according to entering the power saving mode. Here, the loss indicator is a variable that quantifies items that are uncomfortable for the user due to entering the power saving mode, and the gain indicator is a variable that quantifies items that facilitate the user's use of the computing device due to entering the power saving mode. For example, the damage indicator includes a frequency of use of the device, a decrease in performance, and the like, and the gain indicator includes a temperature decrease. Since the loss indicator and the gain indicator are in a trade-off relationship, the larger the value of the item belonging to the loss indicator is, the lower the priority is given, and the higher the value of the item belonging to the loss indicator is, the higher the priority is. do. For example, the higher the amount of decrease in temperature at the time of entering the power saving mode, the lower the decrease in performance, and the lower the frequency of use, the higher the priority. On the other hand, the smaller the amount of decrease in temperature when entering the power saving mode, the larger the decrease in performance, and the higher the frequency of use, the lower the priority. An example of setting the priority according to the amount of decrease in temperature, the amount of decrease in performance, and the frequency of use is shown in Table 1 below.

Decrease in temperature Performance degradation Frequency of use Priority Device1 versus 7-9 degrees greatness lowness One Device2 versus 6 ~ 8 degrees littleness height 2 Device3 medium 3-5 degrees middle height 4 Device4 medium 4 ~ 6 degree greatness lowness 5 Device5 medium 3-5 degrees littleness middle 3 Device6 small 0 ~ 2 degree greatness height 7 Device7 small 1 to 3 degrees middle lowness 6

By transitioning devices into a power saving mode according to the priorities set as described above, the surface temperature of the appliance drops. However, since the performance of the device is degraded, the computing device according to the present invention transitions the device to the power saving mode according to the upper limit threshold of the surface temperature, and releases the power saving mode of the device according to the lower limit threshold of the surface temperature. At this time, like the transition of the power saving mode, the cancellation of the power saving mode is performed according to the priority.

1 illustrates a block configuration of a computing device according to an embodiment of the present invention.

As shown in FIG. 1, the computing device includes a plurality of devices 102-1 to 102 -N, a display unit 104, an input processing unit 106, a temperature sensor 108, a setting management unit 110, It is configured to include a control unit 112.

The plurality of devices 102-1 to 102 -N are hardware constituting the computing device, and perform independent power saving mode operation under the control of the controller 112 as well as device-specific functions. For example, each of the plurality of devices 102-1 to 102 -N includes a Bluetooth communication, a WLAN communication, a Wireless BROadband (WIBRO) communication, a Worldwide Interoperability for Microwave Access (WiMAX) communication, and an HSDPA (High). Broadcast reception module for communication downlink packet access (Speed Downlink Packet Access) communication, central processing unit (CPU), graphics chipset, digital multimedia broadcasting (DMB), digital video broadcasting-terrestrial (DVB-T), It may be a data storage device such as a TV (TeleVision) receiving card, a hard disc drive (HDD), an optical disc drive, a memory, or the like.

The display unit 104 displays state information generated during operation of the computing device and numbers, letters, and images according to execution of an application program. For example, the display unit 104 may include a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like. The input processor 106 recognizes an input generated by a user and provides information corresponding to the input to the controller 112. For example, the input processor 106 processes a user's input through a keypad, a touch screen, a touch pad, a mouse, and the like. Here, the display unit 104 and the input processing unit 106 may also perform an independent power saving mode operation under the control of the controller 112, similarly to the plurality of devices 102-1 to 102 -N. Can be.

The temperature sensor 108 measures the surface temperature of the computing device and provides the measured temperature value to the controller 106. 1 is a functional block configuration, which does not reveal the structure of the computing device, the temperature sensor 108 may be installed at various locations according to the intention of the designer or producer of the computing device. At this time, the temperature sensor 108 is preferably installed to measure the surface temperature of the position where the user is in physical contact with. For example, in the case of a portable computer, as shown in FIG. 3, the temperature sensor 108 may be in contact with a palm rest 310, which may be in contact with a user's hand, and with a leg of the user. It may be located on the bottom surface (320). In FIG. 1, the temperature sensor 108 is illustrated as one, but according to a specific embodiment of the present invention, the computing device may include a plurality of temperature sensors.

The setting manager 110 stores and manages setting values related to temperature control. For example, the setting items include the selection of automatic / manual / unuse for entering the temperature control mode, whether device temperature control is applied, device-specific prioritization method, device-specific priority, and upper limit of surface temperature for temperature control. It may include at least one of / lower limit threshold / usage warning reference value, waiting time length. Here, the setting items may be determined by the structure of the computing device, or determined by the user's intention, or only a part of the items may be determined by the user's intention. In the case of a setting item determined according to a user's intention, the setting management unit 110 determines a setting value according to the information provided from the control unit 112.

The controller 112 controls the overall operation of the computing device. In particular, according to the present invention, in the temperature control mode, the controller 112 performs a temperature control function. Here, the entry of the temperature control mode is determined by the computing device or at the request of the user. For example, if it is determined by the computing device whether the temperature control mode has been entered, the controller 112 determines whether the temperature control mode has been entered by checking whether a preset event has occurred.

Upon entering the temperature control mode, the controller 112 transitions at least one of the plurality of devices 102-1 to 102 -N to a power saving mode according to the surface temperature provided from the temperature sensor 108. . In detail, when the measured surface temperature is higher than the upper limit threshold, the control unit 112 according to the priority of the plurality of devices (102-1 to 102-N), the display unit 104 and the input processing unit ( Transition to at least one of the power saving modes. On the other hand, if the measured surface temperature is lower than the lower limit threshold, the control unit 112 according to the priority of the plurality of devices (102-1 to 102-N), the display unit 104 and the input processing unit 106 To wake up at least one of the power saving mode. At this time, according to the required temperature change amount, only one device is transitioned to the power saving mode or released from the power saving mode, or a plurality of devices are transitioned to the power saving mode or released from the power saving mode. In other words, the controller 112 determines the number of devices to transition to the power saving mode according to the difference between the measured surface temperature and the upper limit threshold, and saves power according to the difference between the measured surface temperature and the lower limit threshold. Determine the number of devices to be released from the mode. Here, the priority is set in advance and is set based on the loss indicator and the gain indicator of each device.

After transitioning the at least one device to the power saving mode or releasing the power saving mode, the controller 112 waits for a preset waiting time. In other words, the controller 112 does not perform any function on temperature control during the waiting time after the at least one device is transitioned to the power saving mode. Here, the standby time is set in consideration of the time taken for the temperature to drop after the transition of the power saving mode of the device. When the waiting time elapses, the controller 112 compares the surface temperature measured by the temperature sensor 108 with the upper limit threshold and the lower limit threshold again.

The controller 112 performs the above-described temperature control operation and determines whether to release the temperature control mode. In this case, whether to release the temperature control mode is determined by the computing device or at the request of the user. For example, when it is determined by the computing device whether the temperature control mode has been entered, the computing device determines whether to release the temperature control mode by checking whether a preset event has occurred. That is, unless it is determined that the temperature control mode should be released, the controller 112 measures the surface temperature and continuously compares the measured surface temperature with the upper limit threshold and the lower limit threshold.

2 illustrates a temperature control procedure of a computing device according to an embodiment of the present invention.

Referring to FIG. 2, in operation 201, the computing device sets a temperature control option according to a user input. In other words, the computing device determines and stores setting values for setting items determined according to the user's intention according to the user's input. However, if the setting item determined according to the intention of the user does not exist, step 201 is omitted.

In operation 203, the computing device determines whether to enter the temperature control mode. In this case, whether to enter the temperature control mode is determined by the computing device or at the request of the user. For example, if it is determined by the computing device whether the temperature control mode has been entered, the computing device determines whether the temperature control mode has been entered by checking whether a preset event has occurred.

If it is determined that the temperature control mode needs to be entered, the computing device proceeds to step 205 to measure the surface temperature. At this time, the measurement position of the surface temperature depends on the intention of the designer or producer of the computing device. However, the measurement position of the surface temperature is preferably installed so as to measure the surface temperature of the position where there is physical contact with the user. For example, in the case of a portable computer, as shown in FIG. 3, the temperature sensor 108 may include a palm rest 310 that may contact the user's hand and a bottom surface that may contact the user's leg. 320).

After measuring the surface temperature, the computing device proceeds to step 207 to determine if the surface temperature is above the upper threshold. In other words, the computing device checks whether the surface temperature should be reduced.

If the surface temperature is lower than or equal to the upper limit threshold, the computing device proceeds to step 209 to determine whether the surface temperature is lower than the lower limit threshold. In other words, the computing device checks whether it is allowed to raise the surface temperature.

If the surface temperature is higher than or equal to the lower limit threshold, the computing device proceeds to step 211 to determine whether to release the temperature control mode. In this case, whether to release the temperature control mode is determined by the computing device or at the request of the user. For example, when it is determined by the computing device whether the temperature control mode has been entered, the computing device determines whether to release the temperature control mode by checking whether a preset event has occurred. If it is determined that the temperature control mode needs to be released, the computing device terminates this procedure. On the other hand, if it is not determined that the temperature control mode needs to be released, the computing device returns to step 205.

That is, unless it is determined that the temperature control mode needs to be released, the computing device measures the surface temperature by repeating steps 205, 207, and 209, and measures the measured surface temperature by the upper limit threshold and The lower limit threshold is continuously compared.

In step 207, when the surface temperature is higher than the upper limit threshold, the computing device proceeds to step 213 to transition the at least one device to the power saving mode according to the priority. At this time, only one device is transitioned to the power saving mode or a plurality of devices are transitioned to the power saving mode, depending on the required amount of temperature drop. In other words, the computing device determines the number of devices to transition to the power saving mode according to the difference between the measured surface temperature and the upper threshold. Here, the priority is set in advance and is set based on the loss indicator and the gain indicator of each device.

After transitioning the at least one device to a power saving mode, the computing device proceeds to step 215 and waits for a preset waiting time. In other words, after the at least one device transitions to the power saving mode, the computing device does not perform any function on temperature control during the standby time. Here, the standby time is set in consideration of the time taken for the temperature to drop after the transition of the power saving mode of the device. The computing device then returns to step 205. That is, when the computing device transitions or releases the at least one device to the power saving mode, the computing device determines the upper and lower threshold values of the surface temperature and the surface temperature measured again after the waiting time has elapsed. Compare.

In step 209, when the surface temperature is lower than the lower limit threshold, the computing device proceeds to step 217 to release the at least one device from the power saving mode according to the priority. At this time, only one device is released from the power saving mode or a plurality of devices are released from the power saving mode according to the allowable temperature rise amount. In other words, the computing device determines the number of devices to be released from the power saving mode according to the difference between the measured surface temperature and the lower threshold. Here, the priority is set in advance and is set based on the loss indicator and the gain indicator of each device. Thereafter, the computing device proceeds to step 215.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the scope of the following claims, but also by the equivalents of the claims.

1 is a block diagram of a computing device according to an embodiment of the present invention;

2 is a diagram illustrating a temperature control procedure of a computing device according to an embodiment of the present disclosure;

3 shows an example of the position of a temperature sensor in a portable computer to which the present invention is applied.

Claims (18)

A computing device device having a plurality of devices, the device comprising: At least one temperature sensor for measuring surface temperature, And a controller for transitioning at least one of the plurality of devices to a power saving mode according to priority if the surface temperature measured by the temperature sensor is greater than an upper threshold of surface temperature. The method of claim 1, And the control unit determines the number of devices to be transitioned to the power saving mode according to the difference value between the measured surface temperature and the upper limit threshold value of the surface temperature. The method of claim 1, And the priority is set based on an indicator including at least one of a frequency of use of the device, an amount of deterioration of the device when the device transitions from the power saving mode, and an amount of temperature decrease of the device when the power saving mode transitions. The method of claim 3, And the control unit releases at least one of the plurality of devices from the power saving mode according to priority if the surface temperature measured by the temperature sensor is less than the lower limit threshold of the surface temperature. The method of claim 4, wherein And the control unit determines the number of devices to be released from the power saving mode according to the difference value between the measured surface temperature and the lower limit threshold value of the surface temperature. The method of claim 4, wherein The control unit, when the at least one of the plurality of devices transitions to or exits the power saving mode, the upper and lower threshold of the surface temperature and the surface temperature measured again after the waiting time has elapsed; Device for comparing the. The method of claim 1, And a management unit configured to determine and store setting values for setting items determined according to a user's intention according to a user's input. The method of claim 1, And the temperature sensor is located in a palmrest of the portable computer. The method of claim 1, And the temperature sensor is located on the bottom of the portable computer. In the surface temperature control method of a computing device having a plurality of devices (device), Measuring the surface temperature, Transitioning at least one of the plurality of devices to a power saving mode in accordance with priority if the surface temperature measured by the temperature sensor is greater than an upper threshold of the surface temperature. The method of claim 10, Translating at least one of the plurality of devices to a power save mode, Determining the number of devices to transition to a power saving mode according to the difference between the measured surface temperature and an upper threshold of the surface temperature. The method of claim 10, The priority may be set based on an indicator including at least one of a frequency of use of the device, an amount of deterioration of the device at the time of the power saving mode transition, and an amount of temperature reduction of the device at the time of the power saving mode transition. The method of claim 12, If the surface temperature measured by the temperature sensor is less than the lower limit threshold of the surface temperature, the method further comprising the step of releasing at least one of the plurality of devices from the power saving mode according to the priority. The method of claim 13, The step of releasing at least one of the plurality of devices from the power save mode,  And determining the number of devices to be released from the power saving mode according to the difference value between the measured surface temperature and the lower limit threshold of the surface temperature. The method of claim 13, When at least one of the plurality of devices transitions to or exits from a power saving mode, comparing a measured surface temperature with an upper threshold of the surface temperature and a lower threshold of the surface temperature again after a waiting time has elapsed; Method further comprising a. The method of claim 10, And determining and storing setting values for setting items determined according to a user's intention according to a user's input. The method of claim 10, The surface temperature is measured at a palmrest of a portable computer. The method of claim 10, The surface temperature is measured at the bottom of the portable computer.
KR1020080074906A 2008-07-31 2008-07-31 Apparatus and method for controlling surface temperature in a computing equipment KR20100013404A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103064445A (en) * 2012-12-25 2013-04-24 华为终端有限公司 Surface temperature control method and handheld electronic equipment
CN114089823A (en) * 2021-10-27 2022-02-25 新华三信息安全技术有限公司 Overheat power-off protection system and method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103064445A (en) * 2012-12-25 2013-04-24 华为终端有限公司 Surface temperature control method and handheld electronic equipment
CN114089823A (en) * 2021-10-27 2022-02-25 新华三信息安全技术有限公司 Overheat power-off protection system and method
CN114089823B (en) * 2021-10-27 2024-03-12 新华三信息安全技术有限公司 Overheat power-down protection system and method

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