WO2009024052A1 - Dispositif de mesure, procédé et dispositif électronique pour mesurer un degré d'encrassement d'un écran anti-poussière - Google Patents

Dispositif de mesure, procédé et dispositif électronique pour mesurer un degré d'encrassement d'un écran anti-poussière Download PDF

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Publication number
WO2009024052A1
WO2009024052A1 PCT/CN2008/071903 CN2008071903W WO2009024052A1 WO 2009024052 A1 WO2009024052 A1 WO 2009024052A1 CN 2008071903 W CN2008071903 W CN 2008071903W WO 2009024052 A1 WO2009024052 A1 WO 2009024052A1
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WO
WIPO (PCT)
Prior art keywords
wind speed
fan
detecting unit
clogging
wind
Prior art date
Application number
PCT/CN2008/071903
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English (en)
Chinese (zh)
Inventor
Gang Wei
Yirong Liao
Wei Shui
Original Assignee
Huawei Technologies Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Publication of WO2009024052A1 publication Critical patent/WO2009024052A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0084—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours provided with safety means
    • B01D46/0086—Filter condition indicators

Definitions

  • Air filter clogging degree detecting device and method, and electronic device Air filter clogging degree detecting device and method, and electronic device
  • the present invention relates to the field of electronic device detection, and in particular, to an apparatus and method for detecting a degree of clogging of a dustproof net, and an electronic device.
  • the timer is added to allow the user to set the timer length according to the running environment of the device. After the timer expires, the alarm is sent to the NMS to alert the user to check and clean the air filter.
  • the detection system includes a timer module 240 that is mounted on a dust screen.
  • the timer module 240 includes: a housing 230, a timer circuit 224, a START button 222, a STOP button 258, a test (TEST) button 252, a time setting circuit 254, a display screen 250, and a speaker 226. , indicator light 260, sensor 256, and remote indicator light 262.
  • the timer circuit 224, the start button 222, the stop button 258, the test button 252, the time setting circuit 254, the display screen 250, the speaker 226, the indicator light 260, and the sensor 256 are disposed in the housing 230.
  • the timer duration is manually set by the time setting circuit 254, and then the start button 222 is started to start timing.
  • the display 250 will display the number of days from the start of the start or the number of days required to display the device alarm.
  • the detection system will send an alarm reminder, through the speaker 226 and the indicator light 260 To remind users to clean or replace the air filter.
  • the test button 252 is used for self-test of the power supply and timing circuits, and is used to determine whether the timer is set properly.
  • the self-test results can be output via the speaker or via the display.
  • the service life of the air filter is easily affected by other external conditions, such as the operation time of the fan, the airflow rate through the air filter, and the mixed components in the air.
  • the sensor 256 is used to detect the air condition, the airflow, and the state of the fan in the environment where the air filter is placed, and controls the timer according to the detection result.
  • Alarm reminders can also be notified to remote users by means of pagers, e-mail or remotely controlled remote indicators 262.
  • the timing detection method can only notify the user to clean and replace the air filter regularly, and does not take into account the complexity of the communication device application environment and the diversity of design differences. You can only rely on the default configuration or manually set the alarm timing based on experience. It may not be timely alarmed in case of poor environment or false alarm in good environment.
  • the air pressure of the system increases, which causes the air filter to deform.
  • the detection switch detects the deformation of the dust net to determine the degree of clogging of the air filter.
  • the surface of the air filter is basically flat, and the airflow can smoothly pass through the air filter. After the air filter is blocked, the airflow cannot pass through the air filter smoothly.
  • the air pressure difference between the two sides increases, which increases the shape of the air filter.
  • the air filter can be used to detect the air filter. To remind maintenance personnel to check whether the air filter is blocked, so that the air filter can be cleaned and replaced.
  • Embodiments of the present invention provide a device, a method, and an electronic device for detecting a degree of clogging of a dustproof net, which can be adapted to various environments to detect the degree of clogging of the air filter.
  • An embodiment of the present invention provides a dust net clogging degree detecting device, the device comprising: a wind speed detecting unit, a data conversion module, and a clogging detecting unit,
  • the wind speed detecting unit is disposed in the air flow channel, configured to obtain a simulated wind speed signal, and provide the simulated wind speed signal to the data conversion module;
  • the data conversion module is connected to the wind speed detecting unit, configured to convert the simulated wind speed signal into a digital wind speed signal, and provide the digital wind speed signal to the jam detecting unit;
  • the jam detecting unit is connected to the data conversion module according to the digital wind speed signal and the speed of the fan
  • the wind resistance characteristic parameter is obtained, and the clogging degree of the air filter is determined according to the wind resistance characteristic parameter and the alarm threshold.
  • An embodiment of the present invention further provides an electronic device, wherein the electronic device is provided with a single board and a fan, and the air inlet and the air outlet are opened on the electronic device, and the fan is used to generate airflow, and The airflow flows in from the air inlet, flows out from the air outlet, forms an air flow passage, and is provided with a dustproof net at the air inlet.
  • the electronic device includes a dust net clogging degree detecting device, and the device includes: a wind speed detecting unit a data conversion module and a jam detection unit, wherein: the wind speed detecting unit is disposed in the air flow channel for obtaining a simulated wind speed signal, and providing the simulated wind speed signal to the data conversion module;
  • the data conversion module is connected to the wind speed detecting unit, configured to convert the simulated wind speed signal into a digital wind speed signal, and provide the digital wind speed signal to the jam detecting unit;
  • the clogging detecting unit is connected to the data conversion module, and obtains a wind resistance characteristic parameter according to the digital wind speed signal and a rotation speed of the fan, and determines a clogging degree of the air filter according to the wind resistance characteristic parameter and the alarm threshold.
  • the embodiment of the invention further provides a method for detecting the degree of clogging of the air filter, comprising:
  • the embodiment of the present invention detects the clogging degree of the air filter by detecting the wind speed of the air filter, and can adapt to various environments and various air filters, without relying on default configuration or human experience, but directly
  • the alarm is generated according to the degree of clogging of the air filter determined by the hurricane speed to notify the user to periodically clean or replace the air filter, thereby ensuring the heat dissipation performance of the electronic device and ensuring the operational stability of the electronic device.
  • FIG. 1 is a structural view showing a detecting device for the degree of clogging of a dust filter in the prior art
  • FIG. 2 is a structural view of an electronic device with a dust net clogging degree detecting device according to Embodiment 1 of the present invention
  • FIG. 3 is a structural view showing a dust net clogging degree detecting device according to Embodiment 1 of the present invention
  • FIG. 4 is a flowchart showing a method for detecting a degree of clogging of a dustproof net according to Embodiment 2 of the present invention
  • FIG. 5 is a flowchart of obtaining an initial wind resistance characteristic parameter according to Embodiment 2 of the present invention.
  • FIG. 6 is a flowchart of obtaining current wind resistance characteristic parameters according to Embodiment 2 of the present invention.
  • the degree of clogging of the air filter is detected by detecting the change of the wind speed in the air flow channel.
  • the detection criteria are changed at any time according to changes in the application environment (such as changes in hardware configuration) in the electronic device, so that the embodiments of the present invention can be adapted to various application environments of the electronic device.
  • the following describes a method for detecting the degree of clogging of the air filter according to the specific embodiment.
  • the first embodiment describes a device for detecting the degree of clogging of the air filter
  • the second embodiment describes a method for detecting the degree of clogging of the air filter.
  • Embodiment 3 describes an electronic device having a detecting device for the degree of clogging of the air filter.
  • the dust net clogging degree detecting device of this embodiment is applied to an electronic device. Next, the dust clogging degree detecting device will be described in detail.
  • Figure 2 is an electronic device with a dust net clogging degree detecting device.
  • the electronic device is provided with a single board (not shown), a fan 4, and an air inlet 8 and an air outlet 7 are formed on the electronic device, and the fan 4 is configured to generate an air flow and make the air flow. It flows in from the air inlet 8 and flows out from the air outlet 7, thereby forming an air flow passage 11 to dissipate heat to the single board.
  • An air filter 3 is disposed at the air inlet 8 to block dust from entering the electronic device.
  • the fan 4 is mounted on the fan frame 10, and the air inlet 8 and the air outlet 7 are opened on the cabinet 9 of the electronic device.
  • the fan 4 is disposed in the air flow passage.
  • the board is disposed in the cabinet 9. When the airflow passes through the airflow channel 11, the board configuration of the electronic device can be dissipated to ensure stable operation of the electronic device.
  • the air filter clogging degree detecting device is mounted in the electronic device, and is based on the electronic device applying the dust clogging degree detecting device.
  • the air filter clogging degree detecting device includes:
  • the wind speed detecting unit 2 is disposed in the air flow channel for obtaining the simulated wind speed signal, and the analog wind speed signal is supplied to the data conversion module 303;
  • a data conversion module 303 coupled to the wind speed detecting unit 2, for converting the simulated wind speed signal into a digital wind speed signal, and providing the digital wind speed signal to the jam detecting unit 1;
  • the clogging detecting unit 1 is connected to the data conversion module 303, and obtains a wind resistance characteristic parameter according to the digital wind speed signal and the rotation speed of the fan, and determines the clogging degree of the air filter according to the wind resistance characteristic parameter and the alarm threshold.
  • the air filter clogging degree detecting device includes a wind speed detecting unit 2, a data converting module 303, and a clogging detecting unit 1.
  • the wind speed detecting unit 2 is disposed inside the air filter 3, and is configured to convert the wind speed passing through the air filter 3 into a simulated wind speed signal (such as a voltage, a current signal, etc.) and simulate the wind speed.
  • the signal is provided to the data conversion module 303;
  • the data conversion module 303 is connected to the wind speed detecting unit 2 for converting the simulated wind speed signal into a digital wind a speed signal, and the digital wind speed signal is provided to the jam detecting unit 1;
  • the clogging detecting unit 1 is connected to the data conversion module 303, and obtains a wind resistance characteristic parameter according to the digital wind speed signal and the rotational speed of the fan, and determines the clogging degree of the air filter according to the wind resistance characteristic parameter and the alarm threshold.
  • the jam detection unit 1 includes: a processing module 304 and a memory 305.
  • the processing module 304 is connected to the data conversion module 303, and obtains a wind resistance characteristic parameter according to the digital wind speed signal and the rotational speed of the fan (see the second embodiment for obtaining the method), and determines the clogging degree of the air filter according to the wind resistance characteristic parameter and the alarm threshold. (For the determination method, see Example 2);
  • the memory 305 is configured to store initial wind resistance characteristic parameters, initial wind speed, fan speed, and alarm threshold.
  • the alarm threshold may be determined by an initial wind resistance characteristic parameter or set according to experience in advance.
  • the alarm threshold is determined by an initial wind resistance characteristic parameter.
  • the alarm threshold may be stored in the memory 305, and the initial wind resistance characteristic parameter may be determined according to an initial wind speed, a fan speed, or the like.
  • the air filter clogging degree detecting device further includes a fan control unit 301 connected to the fan in the electronic device and the processing module of the clogging detecting unit 1 for controlling the rotation speed of the fan 4, and the fan 4 is The rotation speed information is supplied to the clogging detecting unit 1.
  • the data conversion module 303, the jam detection unit 1 and the fan control unit 301 can be integrated.
  • the wind speed detecting unit 2 and the data conversion module 303 can be integrated into one body, such as a digital wind speed sensor.
  • the digital wind speed signal can be directly obtained, and then the digital wind speed signal is supplied to the jam detecting unit 1 through the digital wind speed sensor. Therefore, the wind resistance characteristic parameter is obtained according to the digital wind speed signal and the rotation speed of the fan 4, and the degree of clogging of the air filter can be determined according to the wind resistance characteristic parameter and the alarm threshold.
  • the dust screen clogging degree detecting means may further include a signal processing means 302.
  • the signal processing device 302 is provided to be connected to the wind speed detecting unit 2 for processing (such as filtering and/or amplifying) the wind speed signal output by the wind speed detecting unit 2, and the main function is to improve signal quality and transmission capability, and then The processing signal is sent to the data conversion module 303 (the wind speed detecting unit 2 and the data conversion module 303 are separated) or the jam detecting unit 1 (integrated with the wind speed detecting unit 2 and the data conversion module 303), so that when the wind speed detecting unit 2 When the detected simulated wind speed signal is of poor quality, the jam detection unit can still obtain a better quality signal for subsequent processing.
  • the air filter clogging degree detecting device further includes an alarm module 306, and is connected to the clogging detecting unit 1 for alarming by sound and light to indicate that the air filter is blocked.
  • the jam detecting unit 1 can be connected to the network tube or the host computer 6 through the alarm cable 5.
  • the network management unit or the upper computer 6 is configured to receive an alarm signal sent by the congestion detection unit 1 to notify the remote user to take timely measures, such as cleaning the air filter or replacing the air filter, thereby ensuring the heat dissipation performance of the electronic device and enabling the electronic device.
  • the device runs stably.
  • the method for detecting the degree of clogging of the air filter includes: collecting the rotation speed of the fan and the wind speed parameter at the rotation speed; obtaining the wind resistance characteristic parameter according to the rotation speed of the fan and the wind speed parameter at the rotation speed; according to the current wind resistance characteristic
  • the parameters and alarm thresholds determine the degree of clogging of the air filter.
  • the wind speed parameter can be a digital wind speed signal.
  • the method for detecting the degree of clogging of the air filter will be described in detail below with reference to FIG.
  • the detection method includes the following steps:
  • Step 41 The air filter blocking detection device is powered on and the system is configured;
  • Step 42 Perform initial feature parameter collection of the system, and calculate a system initial wind resistance characteristic parameter K1 and an alarm threshold X.
  • Step 43 Determine whether the timing detection condition is true, and if yes, perform step 44, otherwise, repeat this step;
  • the detection condition may be a predetermined time interval, such as every other day, or a certain time of day, such as 23 o'clock every day;
  • Step 44 The system performs the detection of the degree of clogging of the air filter, and obtains the current system wind resistance characteristic parameter K2;
  • Step 45 Determine whether the current windage characteristic parameter K2 is greater than the alarm threshold X. If yes, it indicates that the air filter is more severely blocked, and step 46 is performed; otherwise, return to step 43.
  • Step 46 Send an alarm or notify the user to clean the dust.
  • the hardware configuration of the same electronic device varies greatly in the unused application scenarios, so the system has a large difference in wind resistance; in addition, since most electronic devices are adjustable in speed for improving heat dissipation performance
  • the fan can be judged and processed by the fan closed-loop speed regulation and a predetermined algorithm to detect and alarm the degree of clogging of the air filter.
  • step 42 the initial feature parameters of the system need to be collected, and the initial wind resistance characteristic parameter of the system is calculated, and then the alarm threshold determined by the initial wind resistance characteristic parameter is calculated.
  • the initial characteristic parameter of the system is that under the condition that the air filter is cleaned, such as the initial power-on of the system, the modification/system hardware configuration, or the air filter update, the processing module 304 sends a control signal, by adjusting the rotation speed of the fan 4, and Read the fan speed value. Then, the digital wind speed signal corresponding to each speed is collected by the wind speed detecting unit, and the initial wind resistance characteristic parameter K1 of the system is obtained according to a predetermined algorithm, and the alarm threshold is determined by the initial wind resistance characteristic parameter K1 of the system, and the alarm threshold is stored in the memory 305.
  • the alarm threshold can also be a preset empirical value. As shown in Fig. 5, the method of calculating the initial wind resistance characteristic parameter K1 of the system and the alarm threshold determined by the initial wind resistance characteristic parameter K1 of the system will be described below.
  • Step 501 the fan speed is adjusted by the processing module to a specific speed point
  • Step 502 delay, until the fan speed is constant
  • Step 503 collecting a wind speed signal, the fan speed RPM1 and the corresponding wind speed signal VI are obtained;
  • Step 504 Determine whether the wind speeds of all the speed points are collected. If yes, go to step 505. Otherwise, go back to step 501 until the wind speed signals are collected at all speed points.
  • Step 505 Calculate an initial wind resistance characteristic parameter K1.
  • V - ( 1 )
  • the wind speed signal is proportional to the fan speed.
  • a V can be used as the wind resistance characteristic parameter Kl.
  • a wind speed is the highest; when the dust net is clogged due to dust deposition (ie, when it becomes larger), the wind speed will decrease;
  • Step 506 Calculate an alarm threshold X according to the initial wind resistance characteristic parameter K1 and the initial wind resistance characteristic parameter K1 of the system, and the X value ranges from 100% to 200% of K1.
  • step 44 the system performs detection of air filter clogging to obtain the current system wind resistance characteristic parameter ⁇ 2.
  • Department During the system operation, the following detection operations are performed periodically to obtain the current wind resistance characteristic parameter of the system:
  • the processing module 304 issues a control signal to adjust the rotation speed of the fan 4 and read the rotation speed value of the fan. Then, the digital wind speed signal corresponding to each speed is collected by the signal processing device 302 and the data conversion module 303, and the wind resistance characteristic parameter K2 of the system is obtained according to a predetermined algorithm in the processing module 304. As shown in Fig. 6, a method of obtaining the current system wind resistance characteristic parameter ⁇ 2 will be described below.
  • Step 602 The processing module adjusts the fan speed to a certain speed point
  • Step 603 Stabilize for a period of time until the fan speed is constant
  • Step 604 Collect a wind speed signal. Thereby obtaining the fan speed RPMD1 and the corresponding wind speed signal VD1;
  • Step 605 Determine whether the wind speeds of all the speed points are collected. If yes, go to step 606. Otherwise, go back to step 602 until the wind speed signals are collected at all speed points.
  • Step 606 When the wind speeds of all the speed points are collected, the data of a set of fan speeds and corresponding wind speed signals can be obtained: [RPMD1, VD1], [RPMD2, VD2], [RPMD3, VD3] uffamn, VDn].
  • the wind resistance characteristic parameter K2 can be obtained according to the method described in the step 505.
  • the wind resistance characteristic parameter ⁇ 2 is compared with the alarm threshold X to determine whether the air filter is clogged. If the alarm threshold is exceeded, the air filter is blocked, and the system sends an alarm through the alarm module. If there is no alarm, the system performs other operations and waits for the next detection according to the time.
  • An electronic device as shown in FIG. 2, is provided with a single board (not shown) and a fan 4, and an air inlet 8 and an air outlet 7 are opened on the electronic device, and the fan 4 is provided.
  • the airflow is generated, and the airflow flows from the air inlet 8 and flows out from the air outlet 7 to form an air flow passage 11 to dissipate heat to the single board.
  • the air inlet 8 is provided with a dustproof net 3, wherein the electronic device
  • the device includes a dust filter clogging degree detecting device. As shown in FIG. 3, the device includes: a wind speed detecting unit 2, a data conversion module 303, and a clogging detecting unit 1, wherein:
  • the wind speed detecting unit 2 is disposed in the air flow channel 11 for obtaining a simulated wind speed signal, and the analog wind speed signal is provided to the data conversion module 303;
  • the data conversion module 303 is connected to the wind speed detecting unit 2 for converting the simulated wind speed signal into a digital wind speed signal, and providing the digital wind speed signal to the jam detecting unit 1;
  • the clogging detecting unit 1 is connected to the data conversion module 303, and obtains a wind resistance characteristic parameter according to the digital wind speed signal and the rotation speed of the fan 4, and determines the clogging degree of the air filter according to the wind resistance characteristic parameter and the alarm threshold.
  • the air filter clogging degree detecting device further includes: a fan control unit 301 connected to the fan 4 and the clogging detecting unit 1 for controlling the rotation speed of the fan 4, and providing the rotation speed information of the fan to the clogging detecting unit 1 .
  • the data conversion module 303, the jam detection unit 1 and the fan 4 control unit are integrated.
  • the wind speed detecting unit 1 and the data conversion module 303 are integrated.
  • the occlusion detecting unit 1 can directly obtain the wind resistance characteristic parameter according to the digital wind speed signal, and then The degree of clogging of the air filter is determined according to the current wind resistance characteristic parameter and the alarm threshold.
  • the method for determining the alarm threshold is the same as the method described above, that is, determined by the initial wind resistance characteristic parameter, or set in advance according to experience.
  • the embodiment of the invention monitors the degree of clogging of the air filter by using the wind speed detection, and can be applied to a complex communication device application environment, and the alarm is accurate and timely. It shields the effects of individual fan differences (such as changes in fan speed or aging).

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Control Of Positive-Displacement Air Blowers (AREA)
  • Air Conditioning Control Device (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

L'invention porte sur un dispositif de mesure, un procédé et un dispositif électronique pour mesurer le degré d'encrassement d'un écran anti-poussière, ledit dispositif de mesure comprenant : une unité de mesure de la vitesse du vent (2), un modèle de transfert de données et une unité de mesure d'encrassement (1). Ladite unité de mesure de la vitesse du vent (2) est installée dans un conduit d'air pour obtenir des signaux de vitesse du vent analogiques, ledit modèle de transfert de données est connecté à ladite unité de mesure de la vitesse du vent (2) pour transférer les signaux de vitesse du vent analogiques en signaux de vitesse du vent numériques et transmettre les signaux de vitesse du vent numériques à l'unité de mesure d'encrassement (1), ladite unité de mesure d'encrassement (1), qui est connectée au modèle de transfert de données, détermine des paramètres de caractéristique de dérive en fonction des signaux de vitesse du vent numériques et de la vitesse de rotation d'un ventilateur, et par conséquent détermine le degré d'encrassement de l'écran anti-poussière en fonction des paramètres de caractéristique de dérive et d'un seuil d'avertissement.
PCT/CN2008/071903 2007-08-17 2008-08-06 Dispositif de mesure, procédé et dispositif électronique pour mesurer un degré d'encrassement d'un écran anti-poussière WO2009024052A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200710129689A CN101368938B (zh) 2007-08-17 2007-08-17 一种防尘网堵塞程度检测装置和方法、及电子设备
CN200710129689.8 2007-08-17

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WO2009024052A1 true WO2009024052A1 (fr) 2009-02-26

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08121099A (ja) * 1994-10-19 1996-05-14 Kajima Corp 換気風量制御方法
CN1536232A (zh) * 2003-04-09 2004-10-13 华为技术有限公司 风扇监控装置及其监控方法
US20050055474A1 (en) * 2003-09-08 2005-03-10 Chien-Hsin Yang Monitor apparatus for computer system
CN2935238Y (zh) * 2006-07-28 2007-08-15 联想(北京)有限公司 具有传感器的防尘网组件

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2499739Y (zh) * 2001-08-17 2002-07-10 陈传端 一种空气过滤网堵塞报警装置
CN101328901A (zh) * 2008-07-25 2008-12-24 华为技术有限公司 一种风扇故障检测装置及方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08121099A (ja) * 1994-10-19 1996-05-14 Kajima Corp 換気風量制御方法
CN1536232A (zh) * 2003-04-09 2004-10-13 华为技术有限公司 风扇监控装置及其监控方法
US20050055474A1 (en) * 2003-09-08 2005-03-10 Chien-Hsin Yang Monitor apparatus for computer system
CN2935238Y (zh) * 2006-07-28 2007-08-15 联想(北京)有限公司 具有传感器的防尘网组件

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110870780A (zh) * 2018-08-29 2020-03-10 深圳迈瑞生物医疗电子股份有限公司 计算机可读存储介质、医用仪器及除尘装置的控制方法
CN109739130A (zh) * 2018-12-29 2019-05-10 努比亚技术有限公司 防尘网清理方法、移动终端及计算机可读存储介质
CN111750918A (zh) * 2020-05-28 2020-10-09 苏州浪潮智能科技有限公司 一种边缘计算服务器进尘监控方法及系统
CN115263793A (zh) * 2022-07-26 2022-11-01 苏州浪潮智能科技有限公司 一种服务器风扇的调速方法、调速装置、设备及介质
CN115263793B (zh) * 2022-07-26 2024-01-23 苏州浪潮智能科技有限公司 一种服务器风扇的调速方法、调速装置、设备及介质

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