WO2015139445A1 - 电子设备的防尘网检测装置及方法 - Google Patents

电子设备的防尘网检测装置及方法 Download PDF

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Publication number
WO2015139445A1
WO2015139445A1 PCT/CN2014/088355 CN2014088355W WO2015139445A1 WO 2015139445 A1 WO2015139445 A1 WO 2015139445A1 CN 2014088355 W CN2014088355 W CN 2014088355W WO 2015139445 A1 WO2015139445 A1 WO 2015139445A1
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WIPO (PCT)
Prior art keywords
fan
electronic device
unit
gear position
air filter
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PCT/CN2014/088355
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English (en)
French (fr)
Inventor
王冬
姬生钦
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烽火通信科技股份有限公司
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Publication of WO2015139445A1 publication Critical patent/WO2015139445A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M99/00—Subject matter not provided for in other groups of this subclass
    • G01M99/002—Thermal testing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/08—Protective devices, e.g. casings
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K3/00—Thermometers giving results other than momentary value of temperature
    • G01K3/08—Thermometers giving results other than momentary value of temperature giving differences of values; giving differentiated values
    • G01K3/14—Thermometers giving results other than momentary value of temperature giving differences of values; giving differentiated values in respect of space

Definitions

  • the invention relates to a heat dissipation technology, in particular to a dust filter detection device and a detection method for an electronic device.
  • the timer intelligent detection technology allows the user to set the timer duration according to the operating environment of the device. The timer expires and then alarms or reports to the NMS to remind the user to check and clean the air filter.
  • the deformation intelligent detection technology is based on the principle that the flow resistance of the system is increased after the air filter is blocked, and the air filter is deformed when the fan is operated at a large working point of the wind pressure. The detection switch is used to monitor the deformation of the air filter to judge the defense. The degree of clogging of the dust net.
  • the wind speed intelligent detection technology detects the clogging degree of the air filter by detecting the wind speed passing through the air filter, and determines the degree of clogging of the air filter by using the change of the wind resistance characteristic parameter caused by the wind speed after the air filter is blocked.
  • the light transmittance intelligent detection technology is a principle that the laser light is attenuated when transmitted through the dustproof net, and the degree of attenuation of the laser light is affected by the dust thickness of the dustproof net, by detecting the transmitted light intensity of the laser light transmitted from the dustproof net. Determine the blocked state of the air filter.
  • the timing intelligent detection technology it is necessary to perform alarm timing based on human experience.
  • the setting is easy to misjudge when the device is running in different environments, so that the difference of the air filter clogging time caused by the application environment cannot be automatically recognized.
  • the deformation intelligent detection technology since the air pressure of the heat dissipation system of most electronic devices is small, the deformation of the air filter after clogging is small, so the sensitivity of the detection switch is high, and it is easily affected by external influences, resulting in false detection.
  • the wind speed intelligent detection technology the wind speed sensor takes up a large space and has a high cost, and is not feasible in a device with high size and cost requirements.
  • the light transmittance intelligent detection technology the laser emitter and the light intensity sensor need to occupy a certain space, and the dust will accumulate on the laser emitter and the light intensity sensor, which may cause the sensitivity of the sensor to decrease and a false alarm to occur.
  • the present invention provides a dust filter detecting apparatus and method for an electronic device capable of improving detection reliability, low cost, and small volume.
  • An air filter detecting device for an electronic device, configured to alarm when a dustproof net of an electronic device is blocked, wherein the electronic device includes at least one fan for dissipating heat to a plurality of single disks working in the electronic device, At least one fan operates in different gear positions, the air filter detecting device includes an ambient temperature detecting unit, an internal temperature detecting unit, a fan gear position control unit, a recording unit, an acquisition unit, and a comparison unit.
  • the ambient temperature detecting unit is disposed at an air inlet of the electronic device for detecting an external ambient temperature
  • the internal temperature detecting unit is disposed on a single disk of the electronic device for detecting an internal temperature of the electronic device
  • the fan gear position control unit is configured to control at least one fan to be in different gear positions
  • the recording unit is configured to record each gear position of the at least one fan
  • the electronic device corresponds to when the fan is stably operated in different gear positions.
  • the external ambient temperature and the internal ambient temperature are reference thresholds, and the acquisition unit is used for the timing collection At least one gear corresponding to the internal fan and the outside ambient temperature
  • the comparison unit compares the gear position of the at least one fan collected by the collecting unit with the corresponding internal environment temperature and the external environment temperature with a reference threshold recorded by the recording unit,
  • the alarm unit determines whether to perform an air filter clogging alarm and displays according to the comparison result of the comparison unit.
  • An air filter detecting method for an electronic device configured to alarm when a dustproof net of an electronic device is blocked, wherein the electronic device includes at least one fan for dissipating heat to a plurality of single disks working in the electronic device, The at least one fan operates in a plurality of gear positions, wherein the air filter detecting method comprises the following steps:
  • the recording unit performs reference threshold collection every time the electronic device is powered on, thereby adapting to various environments, various altitudes, and Different kinds of dust-proof nets do not rely on default configuration or human experience, and have good stability.
  • the temperature detecting unit is used to detect the temperature of the internal and external environment, the cost is relatively low, the volume is relatively small, and the adaptability is strong.
  • FIG. 1 is a schematic diagram of a dust filter detecting device of an electronic device provided by the present invention.
  • FIG. 2 is a schematic view of the air filter air cooling system of FIG. 1.
  • FIG. 3 is a flow chart of a method for detecting a dust filter of an electronic device according to the present invention.
  • FIG. 4 is a flow chart of the intelligent speed control method in FIG.
  • an air filter detecting device 100 for an electronic device is configured to alarm when a dust filter of the electronic device 10 is blocked.
  • the electronic device 10 includes at least one fan 12 and one back plate. 14, a plurality of single discs 16 and an air filter 18, It can be understood that the number of fans 12 can be set as needed.
  • the fan 12 is configured to perform air cooling and heat dissipation on the plurality of single disks 16.
  • the fan 12 can be operated in different gear positions as needed, and the plurality of single disks 16 are provided with connectors 162. Connected to the backing plate 14.
  • the air filter detecting device 100 includes an ambient temperature detecting unit 110, an internal temperature detecting unit 120, a fan gear control unit 140, a recording unit 150, an acquisition unit 160, a comparison unit 170, and an alarm unit 180.
  • the plurality of single disks 16 and the fan gear position control unit 130 are connected to the back plate 14 via the connector 162 of the single disk 16, the ambient temperature detecting unit 110, the internal temperature detecting unit 120 and the fan gear position control unit 140.
  • the backplane 14 communicates with the recording unit 150, the acquisition unit 160, the comparison unit 170, and the alarm unit 180.
  • the ambient temperature detecting unit 110 is disposed at an air inlet of the electronic device 10 for detecting the external ambient temperature Ta, and the internal temperature detecting unit 120 is disposed on the single disk 16 of the electronic device 10 for detecting the internal temperature Tin of the electronic device 10, the fan file
  • the bit control unit 140 is used to control the fan 12 to operate in different gear positions.
  • the recording unit 150 is configured to record the internal ambient temperature Tin and the external ambient temperature Ta corresponding to the electronic device 10 when the fan 12 is adjusted to work in each gear position, and operate each gear of the fan 12 and each gear position.
  • the internal temperature Tin and the external temperature Ta of the corresponding electronic device 10 are stored as reference thresholds.
  • the reference threshold recorded by the recording unit 150 may be set to record each gear position of the fan 12 and the internal environment temperature Tin and the external ambient temperature Ta difference of the electronic device 10 when the fan 12 is stably operated in each gear position.
  • the reference threshold recorded by the recording unit 150 may also be set to record each gear position of the fan 12 and the external ambient temperature Ta corresponding to the electronic device 10 when the fan is stably operated in each gear position.
  • Q is the heat loss of the equipment
  • Cp is the specific heat capacity of the air
  • m is the air mass flow.
  • Q does not change, Cp changes little within a certain temperature range, and is regarded as quantitative.
  • the air filter is clogged, the air mass flow m must decrease, so the internal temperature of the single disk Tin and the ambient temperature Ta The difference will inevitably become larger.
  • ⁇ is the air density
  • V is the air volume flow
  • m is the air mass flow. Due to the different altitudes, the air density ⁇ will change greatly. Although the volumetric flow V of the air does not change much under different fan speeds, the difference in density caused by the altitude will cause a large difference in the Tin-Ta between different regions.
  • the gear position inspection obtains the internal temperature of the single disk, the ambient temperature, and the fan gear position, and the parameters of the location where the equipment is operated can be obtained, thereby avoiding the influence of the altitude.
  • the system After the completion of each fan position and the corresponding temperature parameter acquisition, the system automatically switches to the intelligent speed regulation state.
  • the acquisition unit 160 In the intelligent speed regulation operation state, the acquisition unit 160 is configured to periodically collect the fan 12 after the temperature of the electronic device 10 is stably operated.
  • the real-time gear position and the corresponding internal ambient temperature and external ambient temperature Understandably, the duration of the timing is based on the actual You need to set it yourself.
  • the intelligent speed control method is to periodically detect the internal temperature of the single disk and the fan gear position after the fan of the electronic device is stably operated at a certain speed according to the preset single disk upshift temperature threshold and the downshift temperature threshold.
  • the fan is turned up one step, and the fan is turned down one step when the internal temperature of the fan is less than the downshift temperature threshold. Therefore, according to the intelligent speed regulation method, the fan can seek a fan position that satisfies the heat dissipation according to the environment change, and reduces noise and energy consumption.
  • the comparison unit 170 compares the gear position of the fan 12, the corresponding internal environment temperature and the external ambient temperature collected by the acquisition unit 160 each time with the reference threshold recorded by the recording unit 150.
  • the alarm unit 180 determines whether to perform an air filter clogging alarm and displays according to the comparison result of the comparison unit.
  • the comparison unit stores the fan 12 currently collected by the collecting unit 160.
  • the internal environment temperature and the external environment temperature difference of the electronic device 10 in the gear position are compared with the corresponding temperature difference threshold values of the fan 12 recorded by the recording unit 150 in the same gear position.
  • the collecting unit 160 When the difference between the collected internal environment temperature and the external ambient temperature is greater than the temperature difference threshold recorded by the recording unit 150, the alarm unit 180 performs an air filter clogging alarm and displays. It can be understood that the display mode can be performed by remote communication.
  • the comparison unit collects the external environment temperature of the electronic device 10 currently collected by the collecting unit 160. And the corresponding fan gear position is compared with the corresponding fan gear position recorded at the same external ambient temperature recorded by the recording unit 150. At the same external ambient temperature, the fan gear position collected by the collecting unit 160 is greater than the record.
  • the alarm unit 180 performs an air filter blockage alarm and displays it. It can be understood that the display mode can be performed by remote communication.
  • the dust-proof net detecting device 100 further includes a single-disc detecting unit 190, which is included in the electronic device, because the single-disc working in the electronic device may be added due to actual needs.
  • the 190 is configured to detect whether an additional single disk is displayed in the electronic device when the comparison unit 170 determines that the air filter is not blocked, and the recording unit 150 re-records the corresponding reference threshold when the new single disk is added, that is, the ambient temperature detecting unit. 110.
  • the internal temperature detecting unit 120 and the fan gear position control unit 140 re-detect the corresponding internal and external temperatures in the different gear positions of the fan and record the update.
  • the collecting unit 160 continues to collect the corresponding parameters when the single disk is not added in the electronic device.
  • the method for detecting an air filter of an electronic device is used for alarming when the air filter of the electronic device is blocked.
  • the method for detecting the air filter includes the following steps:
  • S120 periodically collect the fan gear position of the electronic device and the corresponding internal environment temperature and the external environment temperature;
  • S140 Determine whether to perform an air filter clogging alarm and display according to the comparison result.
  • the recording unit 150 records the external ambient temperature Ta detected by the ambient temperature detecting unit 110 and the internal temperature detecting unit 120 detects the internal temperature Tin of the electronic device 10, and each gear of the fan 12 is in each gear.
  • the internal temperature Tin and the external temperature Ta of the corresponding electronic device 10 during the bit operation are stored as reference thresholds.
  • Recording unit The reference threshold value recorded by 150 may be set to record the gear shift of each of the gears 12 and the internal ambient temperature Tin and the external ambient temperature Ta corresponding to the electronic device 10 when the fan 12 is stably operating in each gear position.
  • the reference threshold recorded by the recording unit 150 may also be set to record each gear position of the fan 12 and the external ambient temperature Ta corresponding to the electronic device 10 when the fan is stably operated in each gear position.
  • step S120 in the intelligent speed control operation state, the acquisition unit 160 periodically collects the real-time gear position and the corresponding internal environment temperature and the external environment temperature when the fan 12 is in normal operation after the temperature of the electronic device 10 is stably operated. It can be understood that the duration of the timing can be set according to actual needs.
  • FIG. 4 is a fan intelligent speed control method.
  • the smart speed adjustment method includes the following steps:
  • S121 The device is powered on and configured.
  • step S124 comparing whether the internal temperature of the single disk is greater than a preset up temperature threshold, if yes, proceed to step S125, and if not, proceed to step S126;
  • step S126 comparing whether the internal temperature of the single disc is less than the downshift temperature threshold, and if so, proceeds to step S127, and if not, proceeds to step S123;
  • step S130 when the reference threshold is the value of the internal environment temperature and the external ambient temperature corresponding to the electronic device 10 in each gear position of the fan 12 and the stable operation of the fan 12 in each gear position, the collecting unit 160 is used by the comparing unit.
  • the internal environment temperature and the external environmental temperature difference of the electronic device 10 under the current working gear position of the collected fan 12 and the recording unit The 150 recorded fans 12 are compared at respective temperature difference thresholds in the same gear position.
  • the reference threshold is the external environment temperature of the electronic device 10 when the fan 12 is in each gear position and the fan 12 is stable in each gear position
  • the external environment of the electronic device 10 currently collected by the collecting unit 160 is used by the comparing unit.
  • the temperature and corresponding fan gear position are compared to the corresponding fan gear position at the same external ambient temperature recorded by the recording unit 150.
  • step S140 when the difference between the internal environment temperature and the external environment temperature collected by the acquisition unit 160 is greater than the temperature difference threshold recorded by the recording unit 150 in the same gear position of the fan 12, the alarm unit 180 is used to perform the air filter clogging alarm. And display. When the fan gear position collected by the collecting unit 160 is greater than the fan gear position recorded by the recording unit, the alarm unit 180 performs an air filter clogging alarm and displays the same.
  • step S110 the process proceeds to step S110 to re-record the reference threshold, and if not, the process proceeds to step S120.
  • the recording unit 150 performs reference threshold collection every time the power is turned on, thereby adapting to various environments, various altitudes, and various dust-proof nets, and does not depend on The default configuration or human experience has good stability.
  • the temperature detection unit is used to detect the temperature of the internal and external environment, the cost is relatively low, the volume is relatively small, and the adaptability is strong.

Abstract

一种电子设备（10）的防尘网检测装置（100），电子设备（10）包括在不同档位下运行工作的风扇（12），该检测装置（100）包括用于检测外部环境温度的环境温度检测单元（110）、用于检测电子设备（10）的内部温度的内部温度检测单元（120）、用于控制风扇（12）处于不同档位的风扇档位控制单元（140）、用于记录风扇（12）各档位及风扇（12）在各档位稳定工作时电子设备（10）对应内、外部温度为参考阈值的记录单元（150）、用于定时采集风扇档位及对应内、外环境温度的采集单元（160）、用于将每次采集的风扇档位及对应的内、外部温度跟记录的参考阈值进行对应比较的比较单元（170）和用于根据比较结果来确定是否进行堵塞告警并显示的告警单元（180）。该防尘网检测装置（100）中，通过温度检测单元检测内、外部环境温度，成本低、体积小。还提供了一种电子设备（10）的防尘网检测方法。

Description

电子设备的防尘网检测装置及方法 技术领域
本发明涉及散热技术，尤其涉及一种电子设备的防尘网检测装置及检测方法。
背景技术
目前，为了适应不同应用环境，减少灰尘对电子设备的腐蚀，多数风冷散热设备都会安装防尘网，防尘网积尘会影响风冷性能，导致电子设备换热效能的降低，如采用人工定期维护防尘网不仅维护成本非常高，而且因设备运行环境及季节的不同，防尘网堵塞程度有很大差异，定期维护通常会造成防尘网的维护滞后或者防尘网的维护过于频繁，因此一般采用智能方式对防尘网堵塞进行检测。
定时智能检测技术通过增加定时器的方式，允许用户根据设备运行环境设置定时器时长，该定时器超时后通过声光告警或上报网管，提醒用户检查和清洗防尘网。形变智能检测技术是利用防尘网堵塞后系统流阻增大，风扇在风压较大工作点运行时导致防尘网发生形变的原理，通过设置检测开关来监测防尘网的形变来判断防尘网的堵塞程度。风速智能检测技术通过检测透过防尘网的风速来检测防尘网的堵塞程度，利用防尘网堵塞后风速带来的风阻特征参数的变化，判断防尘网堵塞程度。透光率智能检测技术是利用激光从防尘网中透射时会发生衰减，并且激光的衰减程度受防尘网上的灰尘厚度影响的原理，通过检测从防尘网透射的激光的透射光强来确定防尘网的堵塞状态。
然而，在定时智能检测技术中，需要根据人为经验进行告警定时 设置，当设备在不同环境下运行时容易出现误判，从而无法自动识别应用环境带来的防尘网堵塞时间的差异。在形变智能检测技术中，由于多数电子设备散热系统风压小，防尘网堵塞后变形很小，因而对检测开关的灵敏度要求较高，容易受外界影响而导致误检测。在风速智能检测技术中，风速传感器占用空间较大，成本较高，在尺寸和成本要求较高的设备中可行性不高。在透光率智能检测技术中，激光发射器和光强度传感器需要占用一定空间，而且灰尘会在激光发射器和光强度传感器上积累，可能导致传感器灵敏度降低，出现误告警。
发明内容
有鉴于此，本发明提供一种能提高检测可靠性、成本较低且体积较小的电子设备的防尘网检测装置及方法。
一种电子设备的防尘网检测装置，其用于在电子设备的防尘网堵塞时告警，所述电子设备包括至少一个风扇用于对电子设备中工作的多个单盘进行散热，所述至少一个风扇在不同档位下运行工作，所述防尘网检测装置包括一个环境温度检测单元、一个内部温度检测单元、一个风扇档位控制单元，一个记录单元、一个采集单元、一个比较单元及一个告警单元，所述环境温度检测单元设置在所述电子设备的进风口用于检测外部环境温度、所述内部温度检测单元设置在所述电子设备的单盘上用于检测电子设备的内部温度，所述风扇档位控制单元用于控制至少一个风扇处于不同档位，所述记录单元用于记录所述至少一个风扇的每个档位及所述风扇在不同档位稳定工作时电子设备对应的外部环境温度及内部环境温度为参考阈值，所述采集单元用于定时采集所述至少一个风扇的档位与对应的内部环境温度及外 部环境温度，所述比较单元将所述采集单元每次采集的所述至少一个风扇的档位与对应的内部环境温度及外部环境温度跟所述记录单元记录的参考阈值进行对应比较，所述告警单元根据所述比较单元的比较结果来确定是否进行防尘网堵塞告警并显示。
一种电子设备的防尘网检测方法，其用于在电子设备的防尘网堵塞时告警，所述电子设备包括至少一个风扇用于对电子设备中工作的多个单盘进行散热，所述至少一个风扇在多个档位下运行工作，其特征在于，所述防尘网检测方法包括以下步骤：
记录所述至少一个风扇的每个档位及所述风扇在不同档位稳定工作时电子设备对应的外部环境温度及内部环境温度为参考阈值；
定时采集所述电子设备的至少一个风扇的档位与对应的内部环境温度及外部环境温度；
将每次采集的所述至少一个风扇的档位与对应的内部环境温度及外部环境温度与所记录的参考阈值进行对应比较；
根据比较结果来确定是否进行防尘网堵塞告警并显示。
与现有技术相比，本发明提供的电子设备的防尘网检测装置及方法中，记录单元在每次电子设备开机运行时都进行参考阈值采集，从而适应各种环境、各种海拔高度及各种不同防尘网，不依赖缺省配置或者人为经验，稳定性较好，同时利用温度检测单元检测内外部环境温度，成本较低、体积相对较小，适应性很强。
附图说明
图1是本发明提供的电子设备的防尘网检测装置的示意图。
图2是图1中的防尘网风冷系统示意图。
图3是本发明提供的电子设备的防尘网检测方法的流程图。
图4是图3中的智能调速方法流程图。
主要元件符号说明
电子设备           10
风扇               12
背板               14
单盘               16
连接器             162
防尘网             18
防尘网检测装置     100
环境温度检测单元   110
内部温度检测单元   120
风扇档位控制单元   140
记录单元           150
采集单元           160
比较单元           170
告警单元           180
单盘检测单元       190
如下具体实施方式将结合上述附图进一步说明本发明。
具体实施方式
请参阅图1，本发明实施方式提供的一种电子设备的防尘网检测装置100用于在电子设备10的防尘网堵塞时告警，所述电子设备10包括至少一个风扇12、一个背板14、多个单盘16及一个防尘网18， 可以理解的是，风扇12的数量可以依需要自行设定。如图2所示，所述风扇12用于对所述多个单盘16进行风冷散热，风扇12根据需要可在不同档位下运行工作，多个单盘16上设置有连接器162用以与所述背板14连接。
所述防尘网检测装置100包括一个环境温度检测单元110、一个内部温度检测单元120、一个风扇档位控制单元140，一个记录单元150、一个采集单元160、一个比较单元170及一个告警单元180。多个单盘16及所述风扇档位控制单元130经单盘16的连接器162与背板14相连，所述环境温度检测单元110、所述内部温度检测单元120及风扇档位控制单元140经背板14与所述记录单元150、所述采集单元160、所述比较单元170及所述告警单元180进行通信。
环境温度检测单元110设置在10电子设备的进风口以用于检测外部环境温度Ta，内部温度检测单元120设置在电子设备10的单盘16上用于检测电子设备10的内部温度Tin，风扇档位控制单元140用于控制风扇12处于不同档位工作。
记录单元150用于记录在调节风扇12至每个档位稳定工作时电子设备10对应的内部环境温度Tin及外部环境温度Ta，并将风扇12的每个档位及在每个档位工作时对应的电子设备10的内部温度Tin及外部温度Ta存储为参考阈值。
记录单元150记录的参考阈值可以设置为记录风扇12的每个档位及风扇12在每个档位稳定工作时电子设备10对应的内部环境温度Tin及外部环境温度Ta差值。记录单元150记录的参考阈值还可以设置为记录风扇12的每个档位及风扇在每个档位稳定工作时的电子设备10对应的外部环境温度Ta。
在相同的风扇档位下，内部温度Tin与外部环境温度Ta的差值大于参考温度差值阀值时，视为防尘网堵塞，差距越大，堵塞越严重。其原理如公式(1)所示：
Q＝m*Cp*(Tin-Ta)   (1)
其中，Q为设备热耗，Cp为空气比热容，m为空气质量流量。Q不变，Cp在一定温度范围内变化较小，视为定量，在相同转速下，如果防尘网堵塞，必然出现空气质量流量m减小，因此，单盘内部温度Tin与环境温度Ta的差值必然会变大。
当然，此处进行档位巡检，除了可以获取温度阀值，还可以规避由于海拔带来的散热差异。根据公式(2)所示：
m＝ρ*V   (2)
其中，ρ为空气密度，V为空气体积流量，m为空气质量流量。由于海拔不同，空气密度ρ会发生较大变化，虽然不同风扇转速下，空气体积流量V变化不大，但海拔带来的密度差异，会导致不同地区的(Tin-Ta)差异较大，进行档位巡检获取单盘内部温度、环境温度、风扇档位，可以得到设备运行所在地的参数，从而规避了海拔带来的影响。
也就是说，考虑到电子设备10运行在不同的海拔地区，空气密度不同会导致设备运行有所差异，每次电子设备10开机时都需进行参考阈值记录以避免固化温度阀值。
在完成风扇每个档位及对应的温度参数采集后，系统自动切换到智能调速状态，在智能调速运行状态，采集单元160用于在电子设备10温度稳定运行后定时采集风扇12正常工作时的实时档位与对应的内部环境温度及外部环境温度。可以理解的是，定时的时长根据实际 需要自行设定即可。
可以理解的是，智能调速方法是根据预先设定的单盘升档温度阈值及降档温度阈值，在电子设备的风扇以某一转速稳定运行后定时检测单盘内部温度及风扇档位，并在单盘内部温度大于升档温度阀值时风扇调高一档，在风扇内部温度小于降档温度阀值时风扇调低一档。从而根据智能调速方法，风扇可以根据环境变化，寻求满足散热的风扇档位，减少噪声和能耗。
比较单元170将采集单元160每次采集的风扇12的档位、对应的内部环境温度及外部环境温与记录单元150记录的参考阈值进行相应比较。告警单元180根据比较单元的比较结果来确定是否进行防尘网堵塞告警并显示。
在参考阈值为风扇12的每个档位及风扇12在每个档位稳定工作时电子设备10对应的内部环境温度及外部环境温度差值时，比较单元将采集单元160采集的风扇12当前工作档位下的电子设备10的内部环境温度及外部环境温度差值与记录单元150记录的风扇12在相同档位下相应的温度差值阈值进行比较，在风扇12相同档位下，采集单元160采集的内部环境温度与外部环境温度差值大于记录单元150记录的温度差值阈值时，告警单元180进行防尘网堵塞告警并显示。可以理解的是，显示方式可通过远程通信方式进行。
在参考阈值为风扇12的每个档位及风扇12在每个档位稳定工作时的电子设备10对应的外部环境温度时，比较单元将采集单元160采集的电子设备10当前工作的外部环境温度及对应的风扇档位与记录单元150记录的相同外部环境温度下对应的风扇档位进行比较，在相同的外部环境温度下，采集单元160采集的风扇档位大于所述记录 单元记录的风扇档位时，告警单元180进行防尘网堵塞告警并显示。可以理解的是，显示方式可通过远程通信方式进行。
由于电子设备中工作的单盘会因实际需要会有所新增，为更好的实时准确监测防尘网是否堵塞，防尘网检测装置100还包括一个单盘检测单元190，所述检测单元190用于在比较单元170判断出防尘网未堵塞时来检测电子设备中是否出现新增单盘，记录单元150在出现新增单盘时重新记录相应的参考阈值，也即环境温度检测单元110、内部温度检测单元120及风扇档位控制单元140重新检测风扇不同档位下相应的内外部温度并记录更新，采集单元160在电子设备中未新增单盘时继续进行定时采集相应参数。
请参阅图3，其为本发明提供的一种电子设备的防尘网检测方法，其用于在电子设备的防尘网堵塞时告警，所述防尘网检测方法包括以下步骤：
S110：记录风扇的每个档位及风扇在不同档位稳定工作时电子设备对应的外部环境温度及内部环境温度为参考阈值；
S120：定时采集电子设备的风扇档位与对应的内部环境温度及外部环境温度；
S130：将每次采集的风扇档位与对应的内部环境温度及外部环境温度与所记录的参考阈值进行对应比较；
S140：根据比较结果来确定是否进行防尘网堵塞告警并显示。
在步骤S110中，利用记录单元150记录环境温度检测单元110检测的外部环境温度Ta及内部温度检测单元120检测电子设备10的内部温度Tin，并将风扇12的每个档位及在每个档位工作时对应的电子设备10的内部温度Tin及外部温度Ta存储为参考阈值。记录单元 150记录的参考阈值可以设置为记录风扇12的每个档位及风扇12在每个档位稳定工作时电子设备10对应的内部环境温度Tin及外部环境温度Ta差值。记录单元150记录的参考阈值还可以设置为记录风扇12的每个档位及风扇在每个档位稳定工作时的电子设备10对应的外部环境温度Ta。
在步骤S120中，在智能调速运行状态，利用采集单元160在电子设备10温度稳定运行后定时采集风扇12正常工作时的实时档位与对应的内部环境温度及外部环境温度。可以理解的是，定时的时长根据实际需要自行设定即可。
请参阅图4，其为风扇智能调速方法，所述智能调速方法包括以下步骤：
S121：设备上电，下配置；
S122：风扇以某一温度转速运行；
S123：定时检测单盘内部温度及风扇档位；
S124：比较单盘内部温度是否大于预先设定的升档温度阀值，若是，则进入步骤S125，若否，则进入步骤S126；
S125：将风扇调高一档；
S126：比较单盘内部温度是否小于降档温度阀值，若是，则进入步骤S127，若否，则进入步骤S123；
S127：将风扇调低一档。
在步骤S130中，在参考阈值为风扇12的每个档位及风扇12在每个档位稳定工作时电子设备10对应的内部环境温度及外部环境温度差值时，利用比较单元将采集单元160采集的风扇12当前工作档位下的电子设备10的内部环境温度及外部环境温度差值与记录单元 150记录的风扇12在相同档位下相应的温度差值阈值进行比较。在参考阈值为风扇12的每个档位及风扇12在每个档位稳定工作时的电子设备10对应的外部环境温度时，利用比较单元将采集单元160采集的电子设备10当前工作的外部环境温度及对应的风扇档位与记录单元150记录的相同外部环境温度下对应的风扇档位进行比较。
在步骤S140中，在风扇12相同档位下，采集单元160采集的内部环境温度与外部环境温度差值大于记录单元150记录的温度差值阈值时，利用告警单元180,进行防尘网堵塞告警并显示。在相同的外部环境温度下，采集单元160采集的风扇档位大于所述记录单元记录的风扇档位时，利用告警单元180进行防尘网堵塞告警并显示。
由于电子设备中工作的单盘会因实际需要会有所新增，为更好的实时准确监测防尘网是否堵塞，在检测出防尘网未堵塞后还包括以下步骤：判断电子设备中是否出现新增单盘，若是，则进入步骤S110以重新记录参考阈值，若否，则进入步骤S120。
本发明提供的电子设备的防尘网检测装置及方法中，记录单元150在每次开机时都进行参考阈值采集，从而适应各种环境、各种海拔高度及各种不同防尘网，不依赖缺省配置或者人为经验，稳定性较好，同时利用温度检测单元检测内外部环境温度，成本较低、体积相对较小，适应性很强。
可以理解的是，对于本领域的普通技术人员来说，可以根据本发明的技术构思做出其他各种相应的改变与变形，而所有这些改变与变形都应属于本发明权利要求的保护范围。

Claims (10)

  1. 一种电子设备的防尘网检测装置，其用于在电子设备的防尘网堵塞时告警，所述电子设备包括至少一个风扇用于对电子设备中工作的多个单盘进行散热，所述至少风扇在不同档位下运行工作，其特征在于，所述防尘网检测装置包括一个环境温度检测单元、一个内部温度检测单元、一个风扇档位控制单元，一个记录单元、一个采集单元、一个比较单元及一个告警单元，所述环境温度检测单元设置在所述电子设备的进风口用于检测外部环境温度、所述内部温度检测单元设置在所述电子设备的单盘上用于检测电子设备的内部温度，所述风扇档位控制单元用于控制至少一个风扇处于不同档位，所述记录单元用于记录所述至少一个风扇的每个档位及所述至少一个风扇在不同档位稳定工作时电子设备对应的外部环境温度及内部环境温度为参考阈值，所述采集单元用于定时采集所述至少一个风扇的档位与对应的内部环境温度及外部环境温度，所述比较单元将所述采集单元每次采集的所述至少一个风扇的档位与对应的内部环境温度及外部环境温度跟所述记录单元记录的参考阈值进行对应比较，所述告警单元根据所述比较单元的比较结果来确定是否进行防尘网堵塞告警并显示。
  2. 如权利要求1所述的电子设备的防尘网检测装置，其特征在于，所述记录单元记录的参考阈值为所述至少风扇的每个档位及所述至少一个风扇在每个档位稳定工作时电子设备对应的内部环境温度及外部环境温度差值阈值，所述比较单元将所述采集单元采集的所述至少一个风扇当前工作档位下的电子设备的内部环境温度及外部环境温度差值与所述记录单元记录的所述至少一个风扇相同档位下相应的温度差值阈值进行比较，所述告警单元在所述至少一个风扇的相 同档位下所述采集单元采集的电子设备的内部环境温度及外部环境温度差值大于所述记录单元记录的温度差值阈值时进行防尘网堵塞告警并显示。
  3. 如权利要求1所述的电子设备的防尘网检测装置，其特征在于，所述记录单元记录的参考阈值为所述风扇的每个档位及所述至少一个风扇在每个档位稳定工作时电子设备对应的外部环境温度，所述比较单元将所述采集单元采集的电子设备当前外部环境温度下所述至少一个风扇的档位与所述记录单元记录的相同的外部环境温度下相应的风扇档位进行比较，所述告警单元在所述采集单元采集的风扇的档位大于所述记录单元记录的所述至少一个风扇的档位时进行防尘网堵塞告警并显示。
  4. 如权利要求1所述的电子设备的防尘网检测装置，其特征在于，所述电子设备还包括一个背板，所述多个单盘上设置有连接器，所述环境温度检测单元、所述内部温度检测单元及所述风扇档位控制单元经所述连接器与所述背板相连，所述环境温度检测单元、所述内部温度检测单元及所述风扇档位控制单元与所述记录单元、所述采集单元、所述比较单元及所述告警单元经所述背板进行通信。
  5. 如权利要求1所述的电子设备的防尘网检测装置，其特征在于，所述电子设备的防尘网检测装置还包括一个单盘检测单元用于检测是否电子设备中新增单盘，所述记录单元在所述单盘检测单元检测出存在新增单盘时重新记录参考阈值。
  6. 一种电子设备的防尘网检测方法，其用于在电子设备的防尘网堵塞时告警，所述电子设备包括至少一个风扇用于对电子设备中工作的多个单盘进行散热，所述至少风扇在多个档位下运行工作，其特 征在于，所述防尘网检测方法包括以下步骤：
    记录所述至少一个风扇的每个档位及所述至少一个风扇在不同档位稳定工作时电子设备对应的外部环境温度及内部环境温度为参考阈值；
    定时采集所述电子设备的至少一个风扇的档位与对应的内部环境温度及外部环境温度；
    将每次采集的风扇档位与对应的内部环境温度及外部环境温度与所记录的参考阈值进行对应比较；
    根据比较结果来确定是否进行防尘网堵塞告警并显示。
  7. 如权利要求6所述的电子设备的防尘网检测方法，其特征在于，所记录的参考阈值为所述至少一个风扇的每个档位及电子设备对应的所述至少一个风扇在每个档位稳定工作时内部环境温度及外部环境温度差值阈值，在所述比较步骤中，将所采集的所述至少一个风扇当前工作档位下的电子设备的内部环境温度及外部环境温度差值与所记录的所述至少一个风扇相同档位下相应的温度差值阈值进行比较。
  8. 如权利要求7所述的电子设备的防尘网检测方法，其特征在于，在所述告警步骤中，在所述至少一个风扇相同档位下所采集的电子设备的内部环境温度及外部环境温度差值大于所记录的温度差值阈值时进行防尘网堵塞告警并显示。
  9. 如权利要求6所述的电子设备的防尘网检测装置，其特征在于，所记录的参考阈值为所至少一个述风扇的每个档位及电子设备对应的所述风扇在每个档位稳定工作时的外部环境温度，在所述比较步骤中，将所采集的电子设备的当前外部环境温度下所述至少一个风扇 的档位与所记录的所述电子设备相同的外部环境温度下相应的风扇档位进行比较。
  10. 如权利要求9所述的电子设备的防尘网检测装置，其特征在于，在所述告警步骤中，在所采集的风扇的档位大于所记录的所述风扇的档位时进行防尘网堵塞告警并显示。
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