CN103443733B - For the air-flow monitoring in computing device and the devices, systems, and methods of heat management - Google Patents
For the air-flow monitoring in computing device and the devices, systems, and methods of heat management Download PDFInfo
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- CN103443733B CN103443733B CN201180069548.6A CN201180069548A CN103443733B CN 103443733 B CN103443733 B CN 103443733B CN 201180069548 A CN201180069548 A CN 201180069548A CN 103443733 B CN103443733 B CN 103443733B
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
A kind of embodiment for the devices, systems, and methods for being used to monitor air-flow for mobile computing device and perform heat management operation is described.A kind of device can include such as heat generating component, air propeller and thermal management module, to monitor one or more parameters of air propeller, and the one or more of one or more one or more parameters changed based on the air-flow indicated in the device change, one or more heat management operations are performed.It is described and claimed other embodiment.
Description
Technical field
The present invention relates to dynamically monitor mobile computing device air-flow technology, more particularly, in computing device
Air-flow monitors and the devices, systems, and methods of heat management.
Background technology
In recent years, the performance of modern day computing systems and ability have increased sharply.Many computing systems of today include one
Individual or multiple processors, memory, wireless connection and other heat generating components.The quantity of performance and component in modern day computing systems
Continue to increase with type, as computing system size continues to reduce, this often leads to increased heat and produced.In addition, modern move
Dynamic computing system usually uses in a variety of diverse locations and usage scenario, this cause computing system be used in may partly or
Fully it is designed in choke system on the air vent or the surface of other openings or the material of surrounding of auxiliary heat dissipation.As a result,
It is expected understanding of the increase to the air-flow of mobile computing device.Accordingly, there exist the air-flow to dynamically monitoring mobile computing system
The real demand of technology.
The content of the invention
In one aspect of the invention, the device of a kind of air-flow monitoring being used in computing device and heat management is described,
Including：Heat generating component；Air propeller；And thermal management module, the thermal management module monitor the one of the air propeller
Individual or multiple parameters, and one or more one or more of parameters changed based on the air-flow in instruction described device
One or more change, and perform the operation of one or more heat managements, wherein when the air propeller performance over time and
During degradation, the thermal management module performs calibration to be detected in the whole life cycle activation flow blocked of system, wherein the heat
Manager module monitors the maintenance state of the air propeller, and wherein described monitoring maintenance state includes determining the sky
Gas propeller life-span abrasion, and abrasion or other safeguard how information influences the performance of the air propeller, wherein hindering
Fill in the positioning for including described device or placement or occur as the result of positioning or the placement of described device.
In another aspect of this invention, the system for describing a kind of air-flow monitoring being used in computing device and heat management,
Including：Casing, the casing, which is arranged to closing heat generating component and air propeller, the casing, has one or more appearances
Face, one or more of outer surfaces include facilitating airflow into and leaving one or more openings of the casing；And heat
Management module, the thermal management module monitor one or more parameters of the air propeller, and based on the one of instruction air-flow
One or more changes of kind or one or more of parameters of a variety of changes, one or more heat managements operations are performed, its
In when the air propeller performance is over time and when degrading, the thermal management module performs calibration so as to whole in system
Life cycle activation flow blocked detection, wherein the maintenance state of air propeller described in the thermal manager module monitors, and
Wherein described monitoring maintenance state includes determining the life-span abrasion of the air propeller, and abrasion or other safeguard information such as
What influences the performance of the air propeller, wherein blocking the positioning for including the system or placement or determining as the system
Position or place result and occur.In still another aspect of the invention, a kind of computer implemented method is described, including：Monitoring
One or more parameters of air propeller；Detect one or more changes of one or more of parameters；And based on finger
Show one or more changes of one or more one or more of parameters changed of the air-flow of computing device, perform one
Or the operation of multiple heat managements, wherein when the air propeller performance is over time and when degrading, calibration is performed to be
Whole life cycle activation flow blocked of uniting detects, and is promoted wherein performing one or more heat managements operations and including the monitoring air
The maintenance state of device, and wherein described monitoring maintenance state includes determining the life-span abrasion of the air propeller, and mill
Damage or other safeguard how information influences the performance of the air propeller, wherein obstruction includes the positioning or placement of computing device
Or occur as the result of positioning or the placement of the equipment.
Brief description of the drawings
Figure 1A explains a kind of embodiment of the first system.
Figure 1B explains a kind of embodiment of second system.
Fig. 1 C explain a kind of embodiment of the 3rd system.
Fig. 2 explains a kind of embodiment of chart.
Fig. 3 explains a kind of embodiment of flow chart.
Fig. 4 explains a kind of embodiment of the 4th system.
Embodiment
Each embodiment is usually directed to the technology for the air-flow for being designed to dynamically monitor mobile computing device.Various embodiments
There is provided includes the systems, devices and methods of heat generating component, air propeller and thermal management module, to monitor air propeller
The change of one or more parameters and one or more parameters of change based on instruction air-flow performs one or more heat managements
Operation.It is described and claimed other embodiment.
Elapse and promoted to using the mobile computing device of reduced size and cost over time, designed to be used removal
Or the space of the component of caused heat is increasingly restricted in reduction mobile computing device platform.Such as tablet personal computer, hand
The Modern mobile computing devices requirement for holding formula computing device, smart phone, laptop computer and netbook computer etc. is effective
Cooling element come prevent the system component of key from overheating and also reduce be delivered to it is generally outer with the equipment of user's skin contact
The heat of shell.Current mobile computing device includes air propeller, heat sink or other cooling mechanisms to help to relax hair
Heat caused by hot component.As user in it may block new or unexpected places of cooling vent or other openings profit
During with mobile computing device, and when heat caused by ever-increasing treatment element and component continues increase, these heat
Management assembly may become increasingly poorly efficient.
Modern computing device can be actively cooled and may rely on fan or the air propeller of blower fan etc.
To make cooling air be moved through whole system.If the entrance or outlet vents of computing device become blocked, such as logical
Cross and system is placed on the above-knee or another pressure release surface of user, then may endanger the hot property of system.Modern mobile computing
Equipment can not usually provide the proper method of the air vent blocked for detection.In this mobile computing device, Yong Huke
It can not recognize that air vent is blocked, until skin or skin temperature significantly raise, cause user uncomfortable.In various implementations
In example, the air vent of partial blockage can even cause the skin temperature of mobile computing device to increase 5-10 degrees Celsius or more.
In one embodiment, the dynamic surveillance of the air-flow of system can be completed by monitoring air propeller parameter,
To allow air vent blocked in detecting system.In various embodiments, when the entrance of mobile computing device or outlet are logical
When air holes is significantly blocked, one or more parameters of air propeller can significantly change.For example, in current systems, permitted
The monitored fan speed of multisystem may increase due to air vent blocked.Therefore, some implementations described here
Example can monitor air-flow simultaneously in mobile computing device using the periodic surveillance to one or more air propeller parameters
Check air vent blocked.It is described and claimed other embodiment.
Each embodiment can include one or more elements.Element can include being arranged to perform any of specific operation
Structure.According to the expectation to given one group of design parameter or performance constraints, each element may be implemented as hardware, software or
Its any combinations.It is each to implement although each embodiment can be described as carrying with the specific element of specified arrangement as example
Example can include other combinations with the element of alternative arrangement.
It is worth noting that, any reference to " a kind of embodiment " or " one embodiment " means to combine the embodiment
Specific feature, structure or the characteristic of description are included at least one embodiment.Everywhere occurring in this manual
Phrase " in one embodiment " and " in one embodiment " not necessarily all refer to identical embodiment.
A kind of block diagram of embodiment of Figure 1A explaination mobile computing devices 100.In various embodiments, mobile computing device
100 can include multiple nodes, element or component.According to the expectation to given one group of design parameter or performance constraints, node,
Element or component can generally include any physical entity or logic entity in mobile computing device 100, and can be implemented
For hardware, software or its any combinations.Although the node, element and component of limited quantity can be shown as exemplary plot 1A,
It should be appreciated that more or less nodes, element or component can be used for given realization.
In various embodiments, mobile computing device 100 can include tablet PC, handheld computer, individual number
Word assistant (PDA), cellular phone, combination cellular formula phone/PDA, smart mobile phone, laptop computer, super meter on knee
Calculation machine, portable computer, personal computer (PC), notebook PC, net book, pager, messaging devices, media play
Device, digital music player or other suitable mobile computing devices.Various embodiments are included to notebook, on knee
The reference of computer or portable computer.Each embodiment is not limited to this context.
It is to form the group of wired communication system, wireless communication system or both that mobile computing device 100, which can include operation,
The equipment of a part for conjunction.For example, mobile computing device 100 can include being arranged to the cable modem in one or more types
Believe one or more nodes that information is transmitted on link.The example of wired communications links can include but is not limited to electric wire, cable,
Bus, printed circuit board (PCB) (PCB), Ethernet connection, reciprocity (P2P) connection, bottom plate (backplane), switching fabric (switch
Fabric), semi-conducting material, twisted-pair feeder, coaxial cable, optical fiber connection etc..Mobile computing device 102 can also include being pacified
Arrange to transmit one or more nodes of information on the wireless communication link of one or more types.Wireless communication link shows
Example can include but is not limited to radio channel, infrared channel, radio frequency (RF) channel, wireless fidelity (WiFi) channel, one
Divide RF spectrum and/or one or more permit or license-free bands.
One or more standard transmission information that mobile computing device 100 can be promulgated according to normal structure.In a reality
Apply in example, it may for example comprise the various equipment of the part of communication system 100 may be arranged to according to one or more of following
Operation：The standards of IEEE 802.11, wireless gigabit alliance specifications (WiGig AllianceTMSpecification it is), wireless high
Monastic rule for Buddhists model (WirelessHDTMSpecification), standard or mutation, such as by WirelessHD, what LLC was promulgated
WirelessHD specification revisions 1.0d7 (on December 1st, 2007) and its descendant (collectively referenced as " WirelessHD specifications "), or
By means of any other wireless standard promulgated by other standards tissue, these normal structures such as International Telecommunications Union (ITU),
International Organization for standardization (ISO), International Electrotechnical Commission (IEC), Institute of Electrical and Electric Engineers (information IEEE), internet
Engineering task force (IETF) etc..In various embodiments, for example, mobile computing device 102 can be according to for wireless local
The standards of one or more IEEE 802.11 of net (WLAN) transmit information, the standards of IEEE 802.11 such as information IEEE
(1999 editions, information technology communication and information between system --- LAN and MAN --- exchange special 802.11 standards
Provisioning request, the 11st part：WLAN media access control (MAC) and physics (PHY) layer specification), its descendant and to its
Supplement (for example, 802.11a, b, g/h, j, n, VHT SG and mutation)；IEEE 802.15.3 and mutation；For wireless MAN
The standards of IEEE 802.16, including such as 802.16-2004,802.16.2-2004,802.16e-2005,802.16f and change
The standards of IEEE 802.16 of kind etc.；WGA (WiGig) descendants and mutation；European Computer Manufacture's Association (ECMA) TG20 descendant
And mutation；And other wireless networking standards.Each embodiment is not limited to this context.
Mobile computing device 100 can be according to the transmission of one or more agreements, management or processing information.Agreement can include
One group of predefined rule or instruction for managing the communication between each node.In various embodiments, for example, communication system
One or more agreements, such as Wave beam forming agreement, media access control (MAC) agreement, physical layer convergence protocol can be used
(PLCP), Simple Network Management Protocol (SNMP), asynchronous transfer mode (ATM) agreement, frame relay protocol, SNA knot
Structure (SNA) agreement, transmission control protocol (TCP), Internet Protocol (IP), TCP/IP, X.25, HTTP
(HTTP), UDP (UDP), cycle (CBP) agreement (the contention-based period based on contention
(CBP) protocol), distributed cycle (CBP) agreement based on contention etc..In various embodiments, communication system 100
It may be arranged to according to standard and/or the agreement operation for being used for media handling.Each embodiment is not limited to this context.
In certain embodiments, mobile computing device 100 can include network and other multiple nodes or with network and more
Other individual nodes are associated.In various embodiments, node may be implemented as various types of wireless or mobile computing devices.
The example of wireless device can include but is not limited to IEEE 802.15.3 piconet controllers (PNC), controller,
IEEE 802.11PCP, telegon, stand, subscriber station, base station, WAP (AP), radio customer machine equipment, radio station
(STA), laptop computer, super laptop computer, portable computer, personal computer (PC), notebook PC, flat board
Computer, handheld computer, personal digital assistant (PDA), cellular phone, combination cellular formula phone/PDA, smart mobile phone,
Pager, messaging devices, media player, digital music player, set top box (STB), household electrical appliances, work station, user are whole
End, mobile unit, consumer electronics device, TV, DTV, HDTV, television receiver, HDTV receiver etc.
Deng.
In certain embodiments, mobile computing device 100 can include or comprising the one or more for radio communication
Wave point and/or component, such as one or more emitters, receiver, transceiver, chipset, amplifier, wave filter, control
Logic processed, NIC (NIC), antenna, aerial array, module etc..The example of conventional aerial can include but is not limited to
Built-in aerial, omnidirectional antenna, monopole antenna, dipole antenna, end feedback antenna, circular polarized antenna, microstrip antenna, diversity type day
Line, double antenna, aerial array etc..
In various embodiments, mobile computing device 100 can include a part for wireless network or form wireless network
A part.In certain embodiments, for example, wireless network can include or be implemented as suitable for the various types of of the following
The wireless network of type and the agreement associated：WPAN, WLAN (WLAN), wireless MAN, wireless wide area network (WWAN), width
The satellite network of broad-band wireless access (BWA) network, radio net, TV network, direct broadcasting satellite (DBS) network etc.
Network, Long Term Evolution (LTE) network and/or it is arranged to any other wireless communication networks according to described embodiment operation
Network.
Although each embodiment is not limited to this context, in certain embodiments, mobile computing device 100 explains one
Possible node.In various embodiments, mobile computing device 100 can include heat generating component 102, memory 104, heat management
Module 106, air propeller 108, digital display 110, power supply 112 and air vent 124.Although scheming for explanation purposes
Limited quantity and the component of arrangement are shown in 1A, it should be appreciated that mobile computing device 100 can include any quantity or arrangement
Component, and still fall within described embodiment.For example, in certain embodiments, mobile computing device 100 can be in addition
Including memory, the memory contains the instruction that for example performed by one or more multi-core processors.However, each embodiment
The element shown in not limited to this figure or configuration.It is discussed in further detail below with reference to Fig. 4 for the attached of mobile computing device 100
Add component.
In certain embodiments, one or more heat generating components 102 can include any suitable electronic equipment, semiconductor
Equipment, on-chip system or the other assemblies that heat can be produced.For example, in various embodiments, one or more heat generating components
102 can include multi-core processor.In certain embodiments, one or more heat generating components 102 can be included or comprising one
Individual or multiple radio module or combination emitter/receiver (such as transceiver) equipment.In various embodiments, transceiver is set
It is standby to include having combining and sharing the transmitter of omnibus circuit or single casing and the equipment of both receivers.Example
Such as, in certain embodiments, transceiver may be operative to the wireless communication ability for allowing mobile computing device 100.Describe and want
Seek protection other embodiment.
In certain embodiments, memory 104 can be temporarily including operation or be persistently stored data, program, refer to
Any suitable physical equipment for making sequence or other information to use in mobile computing device 100.For example, memory
104 can be for example including volatibility or nonvolatile memory, RAM, ROM, virtual memory or hard disk drive.Each embodiment
It is not limited to this context.
In various embodiments, thermal management module 106 can include software, firmware, hardware or software, firmware or hardware
Any suitable combination.In one embodiment, for example, thermal management module 106 can include being stored in memory 104
The logic that heat management operates is performed by computing device.In certain embodiments, thermal management module 106 can be included in
The firmware or embedded controller realized in the operating system of computing device 100.Although memory 104 is shown as in figure ia
A part, it should be appreciated that thermal management module 106 can in the computing device 100 from anywhere in realize, and still fall within institute
In the embodiment of description.It is described and claimed other embodiment.
In certain embodiments, air propeller 108 can include any suitable equipment that can produce air stream.Example
Such as, air propeller 108 can include being arranged to the fan or blower fan for producing air stream in computing device 100.Various
In embodiment, air propeller 108 can include acting on air to produce the rotating device of the fin of air-flow or blade, or
Person can be included by being installed in around maincenter so as to the blast fan for producing multiple fan blade of air stream or ribs of the fan forms.
Although the air propeller of Finite Number amount and type has been described and illustrated for explanation purposes, can use any quantity,
Type or the air propeller of arrangement, and they are still fallen within described embodiment.
In certain embodiments, display 110 can include being used for user's display content to mobile computing device 100
Any suitable visual interface.In one embodiment, for example, display 110 can be by liquid crystal display (LCD) or touch-sensitive coloured silk
Color lcd screen is realized.In certain embodiments, touch-sensitive LCD can be used together with instruction pen and/or handwriting recognizer program.
In certain embodiments, display 110 can include the major part for being arranged to occupy the first side of lap-top computing devices
Digital touch panel type display.
In various embodiments, power supply 112 can include being applied to any equipment powered to computing device 100.For example,
Power supply 112 can include AC power supplies or D/C power.In certain embodiments, power supply 112 can include storing and to calculating
The battery or other energy storage devices that equipment 100 is powered.It is described and claimed other embodiment.
In certain embodiments, air vent 124 can include any opening, groove or the permission sky of mobile computing device 100
Gas enters other devices of equipment 100.In various embodiments, air vent 124 may be arranged to allow air-flow 126 to enter shifting
Dynamic computing device 100 is so as to the intraware of cooling device 100, such as heat generating component 102.
In various embodiments, thermal management module 106 may be operative to monitor one or more ginsengs of air propeller 108
Number 108.For example, thermal management module 106 may be operative to monitor the speed of air propeller 108, revolutions per minute (RPM), electricity
Pressure, pulsewidth modulation (PWM) or any other suitable parameter.In certain embodiments, air propeller 108 can include fan
Or blower fan, and one or more parameters can include fan or the speed or fan of blower fan or the voltage of blower fan.
In various embodiments, thermal management module 106 may determine that one or more parameters 108 of air propeller 108
Change whether have occurred and that, and appropriate action can be taken based on the change detected.For example, thermal management module 106 can
With the predetermined basic parameter for determining or air propeller 108 being retrieved, such as target velocity or target voltage.One
In a little embodiments, thermal management module 106 can constantly or periodically check speed or voltage and by this speed or voltage
Compared with target velocity or voltage.In various embodiments, the change of the speed of air propeller 108 or voltage can refer to
Show that the change of the air-flow of computing device 100 has occurred and that.For example, significantly changing for system airflow may cause air propeller
Measurable change of 108 one or more parameters.Using the air propeller 108 with the closed-loop control based on speed
System in, air vent 124 blocked can be identified as maintain air propeller speed required for voltage decline.
In system using the air propeller 108 with the closed-loop control based on speed, air vent 124 blocked can be identified
For the increase of air propeller speed.It is described and claimed other embodiment.
In certain embodiments, thermal management module 106 may be operative to one or more ginsengs based on air propeller 108
Several changes performs one or more heat management operations.In various embodiments, once one or more based on air propeller
The change of individual parameter 108 detects air vent blocked, then thermal management module 106 be present can take to perform heat management
Multiple actions.It is for instance possible to use the operating system notice of taskbar area notice or audible alert sound etc..At some
In embodiment, such notice can report obstruction seriousness (for example, moderate it is blocked/serious it is blocked/etc.) and/or
The action to be taken of recommended user, such as " notebook position please be adjust to prevent from overheating！”.
In various embodiments, heat management operation can include producing the user on the change of speed or the change of voltage
Notice.In certain embodiments, user's notice can include being presented to user to alert the gas of computing device 100 to them
Vision, tactile or the audible notification that the change of stream has occurred and that.In various embodiments, user's notice can include on speed
Or the amount that changes of voltage and/or the information for remedying the proposed action that speed or voltage change.For example, computing device 100 can
Display 110 is shown in so that warning user's fan speed is added particular percentile, instruction air vent 124 message blocked
On.Message can also indicate that user reapposes computing device 100 and blocks to remedy and avoid overheating.
In certain embodiments, heat management operation can include based on the air-flow flow resistance (airflow detected
Restriction the performance state of the component of computing device 100) is changed.For example, the performance state of heat generating component 102 can be with base
Automatically change in the speed of air propeller 108 or the change of voltage.In various embodiments, changing performance state can wrap
Include (throttling) heat generating component 102 that throttled if the speed increase of air propeller 108 or voltage are reduced.Pass through change
The performance state of component, if air vent 124 is blocked, thermal management module 106 can adjust hot as caused by computing device 100
Measure to help prevent the temperature of the shell of overheat condition or equipment 100 or skin to rise.
In certain embodiments, it is also possible to have more complicated response.Some thermal management schemes may rely on system-level school
Standard for any given workload demands determines maximally effective throttling scene.These system level calibrations can aim at normal operating sky
The systematic function of gas propeller.In certain embodiments, However it is possible that being carried out using thermal management module 106 for unfavorable
Air propeller condition (for example, ventilation hole operation blocked) and optimize second calibration (or calibration range).With this
Mode, when air vent is blocked, system can be immediately detected RPM changes, be switched to and be more suitable for one group of conditions present not
Same calibration constant, and perform improved heat management for computing device 100.
In various embodiments, thermal management module 106 can operate to monitor air propeller in addition over time
Notice and can be safeguarded.As an example, when air propeller performance degrades over time, air propeller is to SR
The response of change can qualitatively keep identical.Therefore, in certain embodiments, even air propeller 106 or its
During the performance degradation of his system component, thermal management module 106 can also perform simple alignment so as in the whole life cycle of system
Activate flow blocked detection.
In various embodiments, fan air vent occlusion detection is used as additional input, thermal management module 106 can allow
Or enhancing heat management system.Along with known thermal management applications and equipment, by adjusting air based on the properties of flow detected
Impeller speed and thus adjust air propeller consumption power, thermal management module 106 can be used to improve end user
Ergonomics and management system power consumption in terms of audible noise.Thermal management module 106 can also improve to blocked
Entrance disproportionately sensitive supercharging stream design robustness.It is described and claimed other embodiment.
Figure 1B and 1C explains mobile computing device 150 and mobile computing device 180 respectively.In various embodiments, it is mobile
Computing device 150 and 180 can include the identical of computing device 100 to Figure 1A or similar equipment.In various embodiments,
Figure 1B equipment 150 explains the perspective view of lap-top computing devices.Fig. 1 C equipment 180 explains such as Figure 1B calculating on knee
The close-shot side view of the equipment of equipment 150 etc.Each embodiment is not limited to the arrangement shown in Figure 1A, 1B and 1C or configuration.Go out
Arrangement and the configuration of limited quantity and type are provided in the unrestricted purpose of explaination.
In various embodiments, although not showing all in fig. ib for clarity, computing device 150 can include
The identical of computing device 100 or similar component to Figure 1A.Computing device 150 includes display 110, shell 120, air vent
124 and user notify 128.Although lap-top computing devices are shown as explanation purposes, it should be appreciated that described here each
Embodiment goes for any suitable computing device.It is described and claimed other embodiment.
In certain embodiments, shell 120 can include the heat generating component for being arranged to closed computing device 100,150
102nd, the casing of air propeller 108 and other intrawares.In various embodiments, casing includes opening containing one or more
Mouthful (such as air vent 124) is to facilitate airflow into and leave one or more outer surfaces of casing 120.Although handle in Figure 1B
Air vent 124 is shown as in the side of shell 120, it should be appreciated that from anywhere in air vent can be located on shell 120, and
Still fall within described embodiment.For example, in certain embodiments, air vent 124 can be located at the bottom of shell 120.
In these embodiments, when computing device 150 is placed on user's knee or other pressure release surfaces, air vent blocked is
Common, and the use of thermal management module 120 is beneficial to detect air vent to block.Each embodiment is not limited to this context.
The side view of the equipment 180 of Fig. 1 C explainations in certain embodiments.As shown, equipment 180 can include but
It is not limited to heat generating component 102, memory 104, thermal management module 106, air propeller 108, shell 120, the air-flow of air vent 124
126 and obturator 132.The component of equipment 180 can band numbering similar with Figure 1A equipment 100 and Figure 1B equipment 150
Component is same or similar.Although the component of limited quantity is shown for explanation purposes, it should be appreciated that can use any number
The component of combination and permutation is measured, and is still fallen within described embodiment.
In various embodiments, air-flow 126 can pump to shell 120 by air propeller 108 by air vent 124
In.For example, air propeller 108 can include fan or blower fan, the fan or blower fan are designed to an air-flow 126 and pumped to outside
In shell 120, so as to the one or more assemblies of cooling device 180, such as heat generating component 102.As shown in fig. 1C, at some
In embodiment, air vent 124 can be partially or even wholly blocked, and this may influence air-flow 126.In various embodiments,
Obturator 132 can include the positioning of equipment 180 or placement or occur as the result of positioning or the placement of equipment 180.Example
Such as, if equipment 180 is placed in disorder desk, the leg of user, cushion, soft chair, bed or those of skill in the art and incited somebody to action
In any other suitable material understood, the part of the material or debris can block air vent 124, as obturator 132
Explained.Each embodiment is not limited to this context, and should be understood that the anything that can block air vent 124 falls in institute
In the embodiment of description, and the obturator 132 (such as partly or completely complete) of any amount also falls in described embodiment.
In certain embodiments, can be by one or more parameters of the thermal management module 106 based on air propeller 108
Change, detect obturator 132.For example, working as air vent 124 blocked 132, then air propeller speed 108 can increase, or
Person is used for reduce to the voltage that air propeller 108 is powered.In various embodiments, thermal management module 106 can operate
Dynamically to monitor the parameter of air propeller 108 to detect obturator 132, as described in above with respect to Figure 1A and 1B.
It is described and claimed other embodiment.
Fig. 2 explaination show system airflow in certain embodiments change how to cause air propeller speed, voltage or
The curve map 200 of measurable change of pulse width modulation.For example, as shown in curve map 200, air propeller speed
(RPM) increase as flow velocity is reduced.Based on curve map 200, it can be seen that, can be based on the such as fast of air propeller
The change of degree, voltage or PWM etc. one or more parameters detects divulges information in the computing system of the stream for the reduction for causing system
Hole is blocked.Based on these changes, system can be calculated to improve using the thermal management module of Figure 1A grade of thermal management module 106
The hot property of system.
Fig. 3 explains a kind of embodiment of logic flow 300.According to the phase to given one group of design parameter or performance constraints
Hope, logic flow 300 can be performed by various systems and/or equipment and may be implemented as hardware, software, firmware and/or its
What is combined.For example, one or more operations of logic flow 300 can be by will be held by logical device (for example, computer, processor)
Capable executable programming or non-transient computer-readable instruction are realized.Logic flow 300 can describe above with reference to Figure 1A, 1B,
Dynamic air current monitoring and heat management described by 1C and Fig. 2.It is described and claimed other embodiment.
In various embodiments, in the 302 one or more parameters that can monitor air propeller.For example, in some realities
Apply in example, thermal management module 106 can monitor one or more parameters of air propeller 108, such as speed or voltage.
304, the change of one or more parameters can be detected.For example, thermal management module 106 may be operative to detect air propeller
The change of 108 parameter, such as the increase of fan speed or the reduction of voltage.In various embodiments, 306, based on instruction
The change of one or more parameters of the change of the air-flow of computing device, one or more heat management operations can be performed.For example,
The change of the parameter of air vent 124 based on instruction computing device 100 air propeller 108 blocked, thermal management module 106
It may be operative to the operating parameter for producing user's notice or adjustment other systems component.
In certain embodiments, air propeller can include fan or blower fan, and one or more parameters can include
The speed or voltage of fan or blower fan.In various embodiments, user's notice on the change of speed or voltage can be produced.
To show on display 110 or to lead to as the user of audible notification sounding for example, thermal management module 106 can produce
Know.In certain embodiments, user's notice can include the amount changed on speed or voltage or remedy being built for speed change
The information of the action of view, and increased speed or the voltage of reduction can indicate the flow resistance in air-flow.
In certain embodiments, the change based on speed or voltage, thus it is possible to vary the performance state of the component of computing device.
For example, if the speed increase of such as air propeller 108 or voltage are reduced, thermal management module 106 may be operative to change
The performance state of heat generating component 102, such as throttling heat generating component 102.
In certain embodiments, the maintenance state of air propeller can be monitored.For example, except monitoring air propeller
Outside 108 one or more parameters, thermal management module 106 can also be operated to monitor the maintenance state of air propeller 108.
In various embodiments, monitoring maintenance state can include determining that air propeller 108 life-span abrasion, and abrasion or other
Safeguard how information influences the performance of air propeller 108.In certain embodiments, if the state of maintenance is less than predefined threshold
Value, then it can produce maintenance notice.For example, if air propeller 108 stops execution as expected or stopped by safeguarding
Execution defined in table or schedule, then thermal management module 108 may be operative to produce notice.
In certain embodiments, can be with if not detecting the change of one or more parameters of air propeller
The heat configuration of selection first.For example, if thermal management module 106 judges that the operation of air propeller 108 as expected (such as does not have
There is speed increase or voltage to reduce), then it can select the first heat configuration for allowing the normal operating of computing device 100.At other
In embodiment, if detecting change in one or more parameters of air propeller, the second heat configuration can be selected.Example
Such as, if the change of one or more parameters of the thermal management module 106 based on air propeller 108 judges that air vent 124 is obstructed
Fill in, then the second heat that thermal management module 106 can select to be arranged to produce the heat fewer than the first heat configuration configures.Description is simultaneously
Claimed other embodiment.
Fig. 4 is the figure of Exemplary System Embodiment.Especially, Fig. 4 is the system 400 for showing to include various elements
Figure.For example, Fig. 4 show system 400 can include processor 402, chipset 404, input/output (I/O) equipment 406,
Random access memory (RAM) (such as dynamic ram (DRAM)) 408 and read-only storage (ROM) 410 and various platform assemblies
414 (for example, fan, crossflow fan (crossflow blower), heat sink, DTM systems, cooling system, casing, ventilation
Hole etc.).These elements can be realized with hardware, software, firmware or its any combinations.However, each embodiment is not limited to these
Element.
As shown in Figure 4, I/O equipment 406, RAM 408 and ROM 410 are coupled to processor by chipset 404
402.Chipset 404 can be coupled to processor 402 by bus 412.Therefore, bus 412 can include a plurality of electric wire.
Processor 402 can be included the CPU of the one or more processors core heart and can include having appointing
Any amount of processor of the processor core of what quantity.Processor 402 can include any kind of processing unit, such as
Such as CPU, multiplied unit, Reduced Instruction Set Computer (RISC), processor, the CISC with pipeline
(CISC), digital signal processor (DSP) etc..
Although being not shown, system 400 can include various interface circuits, such as Ethernet interface and/or general serial
Bus (USB) interface and/or analog.In some exemplary embodiments, I/O equipment 406 can include being connected to interface
One or more input equipments of circuit, so as to which data and order are input in system 400.For example, input equipment can wrap
Include keyboard (physical keyboard or dummy keyboard/soft keyboard), mouse, touch-screen, Trackpad, tracking ball, standard point (isopoint),
Speech recognition system and/or analog.Similarly, I/O equipment 406 can include the one or more for being connected to interface circuit
Output equipment, so as to operator's output information.Such as, if desired, output equipment can include one or more aobvious
Show device, printer, loudspeaker and/or other output equipments.For example, one kind in output equipment can be display.Display
It can be the display of cathode-ray tube (CRT), liquid crystal display (LCD) or any other type.
System 400 can also have wired network interface or radio network interface so as to via the connection to network and other
Devices exchange data.Network connection can be any kind of network connection, such as Ethernet connects, digital subscriber line
(DSL), telephone wire, coaxial cable etc..Network can be any kind of network, such as internet, telephone network, cable system
Network, wireless network, packet switching network, circuit-switched network and/or analog.
Numerous specific details have been set forth herein to provide a thorough understanding of the embodiments.However, this area
In it should be understood to the one skilled in the art that can be without these specific details with regard to practicing various embodiments.In other instances, without detailed
Description known operation, component and circuit, so as not to cause each embodiment to obscure.It should be appreciated that specific structure disclosed herein
It can be representative with function detail, and not necessarily limit the scope of each embodiment.
Various embodiments can be realized using the combination of hardware elements, software element or both.The example of hardware elements
Can include processor, microprocessor, circuit, circuit element (for example, transistor, resistor, capacitor, inductor etc.),
Integrated circuit, application specific integrated circuit (ASIC), PLD (PLD), digital signal processor (DSP), scene can compile
Journey gate array (FPGA), gate, register, semiconductor equipment, chip, microchip, chipset etc..The example of software can be with
Including component software, program, application, computer program, application program, system program, machine program, operating system software, in
Between part, firmware, software module, routine, subprogram, function, method, process, software interface, application programming interfaces (API), instruction
Collection, calculation code, computer code, code snippet, computer generation chip segment, word, value, symbol or its any combinations.Judgement is
Realize that one embodiment can change according to any amount of factor using hardware elements and/or using software element, these
For example desired calculation rate of factor, power level, thermal capacitance are poor, processing cycle budget, input data rate, output data rate, storage
Device resource, data bus speed and other designs or performance constraints.
Some embodiments can be described using wording " being coupled " and " connected " and their derivative.These arts
Language is not intended to be mutual synonym.It is, for example, possible to use term " connected " and/or " being coupled " describe some implementations
Example, to indicate the mutually direct physical connection of two or more elements or electrical connection.However, term " being coupled " can also mean
Two or more elements are mutually not directly contacted with, but still co-operation or interactively with each other.
For example, using can be with the machine readable or computer of store instruction, one group of instruction or computer-executable code
Readable medium or product, it is possible to achieve some embodiments, if these instructions, one group of instruction or computer-executable codes by
Machine or computing device can then cause the method and/or operation of machine or computing device according to each embodiment.It is such
Machine can include for example any suitable processing platform, calculating platform, computing device, processing equipment, computing system, processing system
System, computer, processor etc., and can be realized using any suitable combination of hardware and/or software.In some implementations
In example, machine readable medium or product can include non-transient medium, and can include for example any suitable type
Memory cell, memory devices, memory product, storage medium, storage device, storage and/or are deposited at product, storage medium
Storage unit, for example, memory, removable or irremovable medium, volatibility or nonvolatile memory or medium, it is erasable or
Non-erasable medium, writable or rewritable media, numeral or simulation medium, hard disk, floppy disk, aacompactadisk read onlyamemory (CD-
ROM compact-disc (CD-R), rewritable compact-disc (CD-RW), CD, magnetizing mediums, magnetic-light medium, removable Storage), be can record
Device card or disk, various types of digital versatile disks (DVD), band, cassette tape etc..Instruction can be including the use of any suitable
Advanced, rudimentary, object-oriented, visual, compiling formula and/or the code for explaining any suitable type that formula programming language is realized,
Such as source code, compiled code, interpretive code, executable code, static code, dynamic code, encrypted code etc..
Unless illustrate in another manner, otherwise it should be appreciated that such as " processing ", " calculating ", " computing ", " judgement " etc.
Term refer to action and/or the process of computer or computing system or similar electronic computing device, these act and/or entered
Journey is the data manipulation that physical quantity (for example, electronics) is represented as in the register and/or memory of computing system and/or turns
Change the memory in computing system into, in register or other storage of such information, transmission or display devices similarly by table
It is shown as other data of physical quantity.Each embodiment is not limited to this context.
It should be noted that method described here with described order or need not be performed in any particular order.In addition, phase
The various activities described for the method identified herein can be performed in a manner of serial or parallel.
Although having illustrated and described specific embodiment herein, however, it should be understood that being calculated as realizing identical purpose
Any arrangement can substitute shown specific embodiment.Present disclosure is intended to cover any and whole of various embodiments
Modification or change.It should be understood that by way of illustration and nonrestrictive mode has carried out above description.In this area
Technical staff will be apparent from when checking above description above example combination and be not specifically described herein its
His embodiment.Thus, the scopes of various embodiments be included therein using constituent above, structures and methods any other
Using.
It is emphasized that the summary of present disclosure is provided, to meet C.F.R. § 1.72 (b), C.F.R. § 1.72 (b) requirements
The essential summary that reader will be allowed rapidly to distinguish this technology disclosure.It should be understood that it will not be used while submitting summary
To explain or limit the scope of claim or implication.In addition, in foregoing detailed description, it can be seen that for simplification originally
The purpose of disclosure, various features are grouped together in single embodiment.The method of present disclosure should not be solved
It is interpreted as reflecting the intention that embodiment claimed is required than enunciating more features in each claim.Phase
Instead, as following claims reflect, subject matter is less than all features of single disclosed embodiment.Thus following right
It is required that be integrated into accordingly in detailed description, and each claim independently turns into the preferred embodiment of separation.In appended right
In it is required that, term " including (including) " and " wherein (in which) " are, respectively, used as each term and " included
(comprising) " and " it is characterized in that (wherein) " plain English equivalent (plain-English
equivalent).In addition, term " first ", " second " and " the 3rd " etc. is merely used as label, and it is not intended to pair to them
As applying numerical requirements.
Although describing this theme with special language for architectural feature and/or methodology action, should manage
Solution, this theme defined in the following claims are not necessarily limited to specific feature described above or action.On the contrary,
The specific features and acts described above are disclosed as the exemplary forms for realizing claim.
Claims (22)
1. a kind of air-flow monitoring being used in computing device and the device of heat management, including：
Heat generating component；
Air propeller；And
Thermal management module, the thermal management module monitor one or more parameters of the air propeller, and based on instruction institute
State one or more changes of one or more one or more of parameters changed of the air-flow in device, perform one or
Multiple heat management operations,
Wherein when the air propeller performance is over time and when degrading, the thermal management module performs calibration to be
Whole life cycle activation flow blocked of uniting detects,
Wherein described thermal management module monitors the maintenance state of the air propeller, and wherein described monitoring maintenance state bag
Include determine the air propeller life-span abrasion, and abrasion or other safeguard how information influences the air propeller
Performance,
Wherein block the positioning for including described device or placement or occur as the result of positioning or the placement of described device.
2. device as claimed in claim 1, it is characterised in that the air propeller includes fan or blower fan, and described one
Individual or multiple parameters include the speed or the voltage of the fan or blower fan of the fan or blower fan.
3. device as claimed in claim 2, it is characterised in that the heat management operation includes producing one on the speed
Kind or one or more users' notices changed of a variety of changes or the voltage, wherein, increased speed or reduced
Voltage indicates the flow resistance in the air-flow.
4. device as claimed in claim 3, it is characterised in that user's notice includes the amount changed on speed or voltage
Or remedy the information of the proposed action of the speed or voltage change.
5. device as claimed in claim 2, it is characterised in that heat management operation is included based on the speed or voltage
One or more change to change the performance state of the heat generating component.
6. device as claimed in claim 5, it is characterised in that if change the performance state include the speed increase or
The voltage reduces the heat generating component that just throttles.
7. device as claimed in claim 1, including：
Casing, the casing are arranged to close the heat generating component and the air propeller, the casing have one or
Multiple outer surfaces, one or more of outer surfaces include the one or more for promoting the air-flow to enter and leave the casing
It is open, wherein, the one or more of one or more of parameters change instruction entrance or leave the casing one or more
One or more changes of the air-flow of opening.
8. a kind of air-flow monitoring being used in computing device and the system of heat management, including：
Casing, the casing, which is arranged to closing heat generating component and air propeller, the casing, has one or more appearances
Face, one or more of outer surfaces include facilitating airflow into and leaving one or more openings of the casing；And
Thermal management module, the thermal management module monitor one or more parameters of the air propeller, and based on instruction gas
One or more changes of one or more one or more of parameters changed of stream, perform one or more heat management behaviour
Make,
Wherein when the air propeller performance is over time and when degrading, the thermal management module performs calibration to be
Whole life cycle activation flow blocked of uniting detects,
Wherein described thermal management module monitors the maintenance state of the air propeller, and wherein described monitoring maintenance state bag
Include determine the air propeller life-span abrasion, and abrasion or other safeguard how information influences the air propeller
Performance,
Wherein block the positioning for including the system or placement or occur as the result of positioning or the placement of the system.
9. system as claimed in claim 8, it is characterised in that the one or more of one or more of parameters change instruction
Into or leave the one or more of air-flows of one or more openings of the casing and change.
10. system as claimed in claim 8, it is characterised in that the air propeller includes fan or blower fan, and described one
Individual or multiple parameters include the speed or voltage of the fan or blower fan, wherein, increased speed or the voltage of reduction refer to
Show the flow resistance in the air-flow.
11. system as claimed in claim 10, it is characterised in that the heat management operation, which includes generation, will be shown in digital show
Show user's notice on device, the user notifies to indicate the flow resistance of the air-flow and including the amount on the flow resistance or remedies institute
State the information of the proposed action of flow resistance.
12. system as claimed in claim 10, it is characterised in that the heat management operation is included based on the velocity voltage
One or more change to change the performance state of the heat generating component, wherein, if changing the performance state including described
Speed increases or the voltage reduces the heat generating component that just throttles.
13. a kind of computer implemented method, including：
Monitor one or more parameters of air propeller；
Detect one or more changes of one or more of parameters；And
The one or more of one or more one or more of parameters changed of air-flow based on instruction computing device change
Become, perform one or more heat management operations,
Wherein when the air propeller performance is over time and when degrading, calibration is performed so as in the whole life cycle of system
Flow blocked detection is activated,
Wherein performing one or more heat management operations includes monitoring the maintenance state of the air propeller, and wherein described
Monitoring maintenance state includes determining the life-span abrasion of the air propeller, and abrasion or other safeguard how information influences institute
The performance of air propeller is stated,
Wherein block the positioning for including computing device or placement or occur as the result of positioning or the placement of the equipment.
14. computer implemented method as claimed in claim 13, it is characterised in that the air propeller includes fan or wind
Machine, and one or more of parameters include the speed or voltage of the fan or blower fan.
15. computer implemented method as claimed in claim 14, it is characterised in that perform one or more heat management operation bags
Include the user's notice for producing one or more changes on the speed or voltage, wherein, user notice include on
Amount that speed or voltage change remedies the speed or the information of proposed action that voltage changes, and wherein, has increased
Speed or the voltage of reduction indicate flow resistance in the air-flow.
16. computer implemented method as claimed in claim 14, it is characterised in that perform one or more heat management operation bags
Include and changed based on the speed or the one or more of voltage to change the performance state of heat generating component, wherein changing the performance
State includes the heat generating component that throttled if speed increase or the voltage are reduced.
17. computer implemented method as claimed in claim 13, it is characterised in that perform one or more heat management operation bags
Include：
Maintenance notice is produced if the maintenance state exceedes predefined threshold value.
18. computer implemented method as claimed in claim 13, it is characterised in that perform one or more heat management operation bags
Include：
The first heat configuration is selected if not detecting the change of one or more of parameters of the air propeller；With
And
The heat configuration of selection second if detecting one or more changes of one or more parameters of the air propeller.
19. computer implemented method as claimed in claim 18, it is characterised in that the second heat configuration is arranged to than institute
State the first heat configuration and produce less heat.
20. computer implemented method as claimed in claim 19, it is characterised in that change one in the described second heat configuration
Or the performance state of multiple heat generating components.
21. one or more are stored thereon with the computer-readable medium of instruction, the instruction is worked as to be performed by computer processor
When make method of the computing device as any one of claim 13 to 20.
22. it is a kind of be used for computing device in air-flow monitoring and heat management equipment, including for perform as claim 13 to
The device of method any one of 20.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13/072,488 | 2011-03-25 | ||
| US13/072,488 US20120241140A1 (en) | 2011-03-25 | 2011-03-25 | Apparatus, system and method for airflow monitoring and thermal management in a computing device |
| PCT/US2011/067735 WO2012134582A1 (en) | 2011-03-25 | 2011-12-29 | Apparatus, system and method for airflow monitoring and thermal management in a computing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103443733A CN103443733A (en) | 2013-12-11 |
| CN103443733B true CN103443733B (en) | 2018-03-30 |
Family
ID=46876342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180069548.6A Expired - Fee Related CN103443733B (en) | 2011-03-25 | 2011-12-29 | For the air-flow monitoring in computing device and the devices, systems, and methods of heat management |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20120241140A1 (en) |
| CN (1) | CN103443733B (en) |
| DE (1) | DE112011105094T5 (en) |
| TW (1) | TWI554868B (en) |
| WO (1) | WO2012134582A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9720467B2 (en) * | 2013-08-09 | 2017-08-01 | Qualcomm Incorporated | Thermal mitigation adaptation for a mobile electronic device |
| JP6417672B2 (en) * | 2014-02-27 | 2018-11-07 | 富士通株式会社 | Data center, data center control method and control program |
| US9816711B2 (en) * | 2014-08-26 | 2017-11-14 | Haier Us Appliance Solutions, Inc. | Air conditioner unit and method for operating same |
| US10268236B2 (en) * | 2016-01-27 | 2019-04-23 | Apple Inc. | Electronic devices having ventilation systems with antennas |
| CA3068334A1 (en) * | 2017-07-10 | 2019-01-17 | Magic Leap, Inc. | Method and system for integration of electronic sensors with thermal cooling system |
| US11515621B2 (en) * | 2019-12-05 | 2022-11-29 | Dell Products, Lp | System and method for operating an antenna within an antenna vent being co-located with an audio or thermal vent |
| WO2022260759A1 (en) * | 2021-06-08 | 2022-12-15 | Arris Enterprises Llc | Blocked vent sensor for electronic devices |
| US11693468B2 (en) * | 2021-11-09 | 2023-07-04 | Lenovo (Singapore) Pte. Ltd. | Power setting adjustment in restricted airflow environment |
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| EP0857012A1 (en) * | 1997-01-31 | 1998-08-05 | Nec Corporation | Apparatus for monitoring ventilation of integrated circuits in electronic apparatus |
| US6532151B2 (en) * | 2001-01-31 | 2003-03-11 | Hewlett-Packard Company | Method and apparatus for clearing obstructions from computer system cooling fans |
| CN1704865A (en) * | 2004-06-02 | 2005-12-07 | 联想(北京)有限公司 | Server heat dissipation administrative system and method thereof |
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| US7167993B1 (en) * | 1994-06-20 | 2007-01-23 | Thomas C Douglass | Thermal and power management for computer systems |
| US5777897A (en) * | 1996-11-26 | 1998-07-07 | The United States Of America As Represented By The Secretary Of The Navy | Method for optimizing the rotational speed of cooling fans |
| US6792550B2 (en) * | 2001-01-31 | 2004-09-14 | Hewlett-Packard Development Company, L.P. | Method and apparatus for providing continued operation of a multiprocessor computer system after detecting impairment of a processor cooling device |
| US6928565B2 (en) * | 2001-04-13 | 2005-08-09 | Dell Products L.P. | Computer system thermal lap management method and apparatus |
| US6760649B2 (en) * | 2002-05-22 | 2004-07-06 | International Business Machines Corporation | Thermal management of a laptop computer |
| KR100608572B1 (en) * | 2004-11-18 | 2006-08-03 | 삼성전자주식회사 | Apparatus and method for cooling a potable computer |
| US7726186B2 (en) * | 2006-07-19 | 2010-06-01 | Degree Controls, Inc. | Airflow sensor for filter blockage detection |
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2011
- 2011-03-25 US US13/072,488 patent/US20120241140A1/en not_active Abandoned
- 2011-12-29 CN CN201180069548.6A patent/CN103443733B/en not_active Expired - Fee Related
- 2011-12-29 WO PCT/US2011/067735 patent/WO2012134582A1/en active Application Filing
- 2011-12-29 TW TW100149540A patent/TWI554868B/en not_active IP Right Cessation
- 2011-12-29 DE DE112011105094.1T patent/DE112011105094T5/en active Pending
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|---|---|---|---|---|
| EP0857012A1 (en) * | 1997-01-31 | 1998-08-05 | Nec Corporation | Apparatus for monitoring ventilation of integrated circuits in electronic apparatus |
| US6532151B2 (en) * | 2001-01-31 | 2003-03-11 | Hewlett-Packard Company | Method and apparatus for clearing obstructions from computer system cooling fans |
| CN1704865A (en) * | 2004-06-02 | 2005-12-07 | 联想(北京)有限公司 | Server heat dissipation administrative system and method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201239596A (en) | 2012-10-01 |
| US20120241140A1 (en) | 2012-09-27 |
| CN103443733A (en) | 2013-12-11 |
| DE112011105094T5 (en) | 2014-09-04 |
| TWI554868B (en) | 2016-10-21 |
| WO2012134582A1 (en) | 2012-10-04 |
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