CN114780352A - Dust monitoring system and server - Google Patents
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- CN114780352A CN114780352A CN202210582318.XA CN202210582318A CN114780352A CN 114780352 A CN114780352 A CN 114780352A CN 202210582318 A CN202210582318 A CN 202210582318A CN 114780352 A CN114780352 A CN 114780352A
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- 239000000428 dust Substances 0.000 title claims abstract description 253
- 238000012544 monitoring process Methods 0.000 title claims abstract description 22
- 238000001514 detection method Methods 0.000 claims abstract description 31
- 230000008054 signal transmission Effects 0.000 claims description 9
- 238000012806 monitoring device Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 13
- 230000008569 process Effects 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/3058—Monitoring arrangements for monitoring environmental properties or parameters of the computing system or of the computing system component, e.g. monitoring of power, currents, temperature, humidity, position, vibrations
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/32—Monitoring with visual or acoustical indication of the functioning of the machine
- G06F11/324—Display of status information
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Abstract
The application discloses dust monitoring system is applied to server safety field. The system comprises a dust detection device and a processor which are arranged inside a server, wherein the dust detection device can realize the function of detecting the dust amount in the server, the processor can compare the detected dust amount with a preset value, when the dust amount is larger than the preset value, the dust in the server is judged to be more, and the control prompt device sends prompt information at the moment so that a worker can know the dust amount in the server based on the prompt information. Therefore, the server dust detection method and device can detect dust in the server and can send prompt information when the amount of the dust is large, so that workers can timely process the dust in the server, the dust can be prevented from being accumulated in the server for a long time, devices inside the server are prevented from being corroded by the dust, and safety and reliability of the server are improved. The application also discloses a server which has the beneficial effects.
Description
Technical Field
The application relates to the field of server safety, in particular to a dust monitoring system and a server.
Background
With the rapid development of the chip industry, the performance of the chip is more and more powerful, and then the power consumption of the chip is greatly increased, and the increase of the integration density in the server and the power consumption of the chip used in the server brings great challenges to the heat dissipation of the server. The processing mode in the prior art is as follows: the rotating speed of a fan inside the server is increased or a fan with higher performance is introduced to improve the heat dissipation speed, so that the problem of server heat dissipation is solved.
However, as the rotating speed of the fan increases and the performance of the fan improves, more dust is introduced into the server, and a large amount of dust brings a great risk of damaging hardware (such as a mechanical hard disk) inside the server.
Disclosure of Invention
The utility model provides a purpose is to provide a dust monitoring system and server, can detect the dust in the server to send tip information when the dust volume is more, so that the staff in time handles the dust in the server, can avoid the dust to pile up in the server for a long time, thereby avoid the inside device of dust corruption server, improved the security and the reliability of server.
In order to solve the above technical problem, the present application provides a dust monitoring system, which is applied to a server, and includes:
the dust detection device is arranged in the server and is used for detecting the dust amount in the server;
and the processor is connected with the dust detection device at the first end and is used for controlling the prompt device to send prompt information when the dust amount is greater than a preset value.
Preferably, the server includes a fan disposed from inside to outside and a mask having a plurality of holes, and the dust detection apparatus includes:
the dustproof net is arranged between the face mask and the fan and fixed on the face mask, and holes in the dustproof net are smaller than holes in the face mask;
the wind pressure sensor is arranged between the dust screen and the fan and used for detecting the wind pressure of the position where the wind pressure sensor is located;
the processor is specifically used for determining the dust amount on the dust screen according to the wind pressure and the rotating speed of the fan and controlling the prompting device to send out first prompting information when the dust amount is larger than the preset value.
Preferably, the processor is further configured to determine a wind pressure-power consumption curve according to the wind pressure output by the wind pressure sensor, the rotating speed of the fan, and the power consumption, determine whether the wind pressure-power consumption curve is within a range of a preset wind pressure-power consumption curve, and if not, control the prompting device to send out second prompting information.
Preferably, a preset hole is opened on the dust screen, and the dust detection device further comprises:
the dust sensor is arranged at the preset hole, the edge of the dust sensor is tightly attached to the edge of the preset hole, and the dust sensor is used for detecting the dust concentration of the position where the dust sensor is located;
the processor is specifically configured to control the prompting device to send out a third prompting message when the dust concentration is greater than a preset concentration.
Preferably, the dust sensor includes:
the dust collecting device is arranged on the dustproof net and is used for collecting dust at the position of the dust collecting device;
and the dust measuring device is connected with the dust mobile phone device and is used for measuring the collected dust concentration to obtain the dust concentration.
Preferably, the processor is further configured to control the prompting device to send out serious alarm information when the dust amount is greater than the preset value and the dust concentration is greater than the preset concentration.
Preferably, the method further comprises the following steps:
the first connector is arranged between the processor and the wind pressure sensor and used for realizing signal transmission between the processor and the wind pressure sensor;
preferably, the method further comprises the following steps:
and the second connector is arranged between the processor and the fan and is used for realizing signal transmission between the processor and the fan.
Preferably, the method further comprises the following steps:
the first connector is arranged between the processor and the dust sensor and is used for realizing signal transmission between the processor and the dust sensor;
in order to solve the technical problem, the application further provides a server which comprises the dust monitoring device.
The application provides a dust monitoring system, which is applied to the field of server safety. The system comprises a dust detection device and a processor, wherein the dust detection device is arranged inside the server, the dust detection device can realize the function of detecting the dust amount in the server, the processor can compare the detected dust amount with a preset value, when the dust amount is larger than the preset value, more dust in the server is judged, and the prompt device is controlled to send prompt information so that a worker can know the dust amount in the server based on the prompt information. Therefore, the server dust detection method and device can detect dust in the server and can send prompt information when the amount of the dust is large, so that workers can timely process the dust in the server, the dust can be prevented from being accumulated in the server for a long time, devices inside the server are prevented from being corroded by the dust, and safety and reliability of the server are improved.
The present application also provides a server having the same advantageous effects as the above-described dust monitoring system.
Drawings
In order to more clearly illustrate the embodiments of the present application, the drawings required for the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained by those skilled in the art without inventive effort.
Fig. 1 is a block diagram of a dust monitoring system provided in the present application;
FIG. 2 is a front view of one sensor position provided herein;
FIG. 3 is a top view of one sensor location provided herein;
FIG. 4 is a schematic view of an opening of a dust screen provided herein;
fig. 5 is a block diagram of a specific structure of a dust detection system provided in the present application.
Detailed Description
The core of this application is that a dust monitoring system and server are provided, can detect the dust in the server to send out tip information when the dust volume is more, so that the staff in time handles the dust in the server, can avoid the dust to pile up in the server for a long time, thereby avoid the inside device of dust corruption server, improved the security and the reliability of server.
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, fig. 1 is a block diagram of a dust monitoring system provided in the present application, where the system is applied to a server, and includes:
a dust detection device 1 provided in the server for detecting the amount of dust in the server;
and the processor 2 is connected with the dust detection device 1 at a first end and is used for controlling the prompting device to send out prompting information when the dust amount is larger than a preset value.
The problem of server dust increase caused by increase of the wind speed and the wind quantity of a cooling fan due to increase of chip power consumption and increase of integration density of a server is solved.
Therefore, the present application provides a dust monitoring system, which specifically includes a dust detecting device 1 and a processor 2, wherein the dust detecting device 1 detects the amount of dust in the server and sets a reasonable threshold (i.e. the above-mentioned preset value), the processor 2 compares the amount of dust detected by the dust detecting device 1 with the preset value, specifically, when the detected amount of dust is not greater than the preset value, it is determined that the amount of dust in the server is relatively small, when the detected amount of dust is greater than the preset value, it is determined that the amount of dust in the server is relatively large, a certain threat exists to the safety of the server due to excessive amount of dust, at this time, the amount of dust in the server needs to be cleaned to ensure the safety of the server, therefore, at this time, the processor 2 controls the prompting device to output prompting information, so that a worker knows the dust accumulation degree in the server based on the prompting information, therefore, dust in the server is timely processed, and the safety of the server is guaranteed.
It should be noted that, in the present application, after the dust detection device 1 detects the dust amount in the server, the detected dust amount may be, but is not limited to, only comparing the detected dust amount with a preset value, and the prompting device may be directly controlled to display the dust amount detected by the dust detection device 1, and specifically, the prompting device may include a display device to display the dust amount in real time. When the prompting device does not include a display device, the processor 2 controls the display device to display the dust amount when the processor 2 receives the dust amount.
The processor 2 may be, but not limited to, a BMC (Baseboard Management Controller) inside the server, and in order to reduce the workload of the BMC, an additional processor 2 (such as a single chip microcomputer) may also be separately provided, and a specific implementation manner is not limited herein.
To sum up, dust monitoring system in this application can detect the dust in the server to control suggestion device and send tip information when the dust volume is more, so that the staff in time handles the dust in the server, can avoid the dust to pile up in the server for a long time, thereby avoid the inside device of dust corruption server, improved the security and the reliability of server
On the basis of the above-described embodiment:
as a preferred embodiment, the server includes a fan disposed from inside to outside and a mask having a plurality of holes, and the dust detection apparatus 1 includes:
the dustproof net 23 is arranged between the face mask and the fan and fixed on the face mask, and the hole on the dustproof net 23 is smaller than the hole on the face mask;
the wind pressure sensor 21 is arranged between the dust screen 23 and the fan and used for detecting the wind pressure of the position where the wind pressure sensor is arranged;
the processor 2 further comprises a second end connected with the fan, and the processor 2 is specifically configured to determine the dust amount on the dust screen 23 according to the wind pressure and the rotating speed of the fan, and control the prompting device to send out a first prompting message when the dust amount is greater than a preset value.
Further, the present embodiment aims to provide a specific implementation manner of the dust detection apparatus 1, specifically, when a fan is disposed in the server, a mask with multiple holes is disposed on the outside of the server (where the mask is usually disposed on the front portion of the server chassis for decoration, protection, dust prevention and ventilation, and may also be referred to as a front mask), and since the holes disposed on the mask are larger, the dust entering into the mask is larger, a dust-proof net 23 is disposed between the mask and the fan, wherein the holes of the dust-proof net 23 are smaller than the holes of the mask, and are mainly used for ventilation and preventing dust from entering into the server. In addition, the wind pressure sensor 21 is arranged between the dust screen 23 and the fan (specifically, when the fan is started, the wind direction is from the mask to the dust screen 23 to the inside of the server), so that the wind pressure sensor 21 can detect the wind pressure at the position of the wind pressure sensor. The specific principle is as follows: when the rotation speed of the fan is constant, if the dust on the dust screen 23 is less, the degree of blocking the holes on the dust screen 23 by the dust is less, the wind pressure detected by the wind pressure sensor 21 is greater, and if the dust on the dust screen 23 is more, the degree of blocking the holes on the dust screen 23 by the dust is greater, so the wind pressure detected by the wind pressure sensor 21 is less.
Specifically, a preset wind pressure-dust amount corresponding relationship may be constructed in advance, and then the dust amount on the current dust screen 23 is determined based on the detected wind pressure and the corresponding relationship, so that the determined dust amount is compared with the preset value to determine whether the dust amount is excessive, thereby determining whether to control the prompting device to send the prompting information.
In addition, a preset wind pressure can also be directly set, the preset wind pressure corresponds to a preset value of dust amount, after the wind pressure sensor 21 detects the wind pressure at the position of the wind pressure sensor, the detected wind pressure is compared with the preset wind pressure, when the wind pressure is greater than the preset wind pressure, the dust amount is judged to be greater than the preset value, and the control prompting device sends out first prompting information; when the wind pressure is not greater than the preset wind pressure, the dust amount is judged to be small, and the prompting device is not controlled to send out first prompting information temporarily.
With particular reference to fig. 2, 3 and 4, fig. 2 is a front view of a sensor site provided herein, fig. 3 is a top view of a sensor site provided herein, and fig. 4 is a schematic illustration of an opening of a dust screen 23 provided herein. The wind pressure sensor 21 may be disposed at any position of the dust screen 23.
In this application, the first prompt message and the prompt message may be the same or different, and the application is not limited herein.
To sum up, when the dust detection device 1 in this application includes the dust screen 23 and the wind pressure sensor 21, the function of the dust detection device 1 can be realized, and the realization mode is simple and reliable.
As a preferred embodiment, the processor 2 is further configured to determine a wind pressure-power consumption curve according to the wind pressure output by the wind pressure sensor 21, the rotation speed of the fan, and the power consumption, determine whether the wind pressure-power consumption curve is within a range of a preset wind pressure-power consumption curve, and if not, control the prompting device to send out the second prompting information.
Further, when the rotation speed of the fan is constant, under normal conditions (when dust is less), except that the wind pressure detected by the wind pressure sensor 21 is within a certain preset range, the power consumption of the fan is also within a certain range; in an abnormal situation (when there is much dust), the wind pressure detected by the wind pressure sensor 21 may not be within the preset range, or the power consumption of the fan may not be within the preset range (because the power consumption of the fan increases when the wind permeability is poor). Therefore, in the application, a wind pressure-power consumption curve corresponding to the current rotating speed is determined according to the current rotating speed and power consumption of the fan and the currently detected wind pressure, then the wind pressure-power consumption curve is compared with a preset wind pressure-power consumption curve, when the range exceeding the preset curve is obtained, the wind pressure and/or power consumption is judged to be abnormal, and at the moment, the processor 2 controls the prompting device to send out second prompting information.
The wind pressure-power consumption curve and the preset wind pressure-power consumption curve can be drawn through simulation or other manners, and the application is not limited herein.
Whether the second prompt message is the same as the first prompt message or not and whether the specific implementation manner of the prompt message is the same or not are not limited herein.
As a preferred embodiment, the dust screen 23 has a preset hole, and the dust detection apparatus 1 further includes:
the dust sensor 22 is arranged at the preset hole, and the edge of the dust sensor is tightly attached to the edge of the preset hole, and is used for detecting the dust concentration of the position where the dust sensor is located;
the processor 2 is specifically configured to control the prompting device to send out a third prompting message when the dust concentration is greater than the preset concentration.
Further, the dust detection device 1 in this embodiment may include, but is not limited to, only the specific implementation manner of the wind pressure sensor 21 and the dust screen 23, and may further include a dust sensor 22 capable of detecting the dust concentration at the location of the dust detection device, at this time, the dust detection device 1 may further implement a function of detecting the dust concentration in the server, and when the dust concentration is greater than the preset concentration, it may be determined that the dust amount of the server reaches the preset value, and at this time, the processor 2 controls the prompt device to send out the third prompt information.
It should be noted that the specific location of the dust sensor 22 can refer to fig. 2, 3 and 4. The dust sensor 22 in this embodiment is disposed on the dust screen 23, wherein the dust screen 23 at the dust sensor 22 is hollowed, and the edge of the dust sensor 22 and the edge of the opening of the dust screen 23 should be tightly attached to prevent dust from entering the inside of the server through the dust sensor.
Whether the third prompt information is the same as the second prompt information, the first prompt information and the specific implementation manner of the prompt information is not limited herein.
To sum up, through the mode in this application, not only can realize the detection to the dust volume, can also realize the detection to dust concentration, further improved the precision and the reliability that detect the dust.
As a preferred embodiment, the dust sensor 22 includes:
a dust collecting device arranged on the dust screen 23 and used for collecting dust at the position of the dust collecting device;
and the dust measuring device is connected with the dust mobile phone device and is used for measuring the concentration of the collected dust to obtain the dust concentration.
Further, the present embodiment is directed to provide a specific implementation manner of the dust sensor 22, which may specifically, but not limited to, include a dust mobile phone device and a dust measuring device, wherein the dust mobile phone device may, but not limited to, be provided with a chip, so that the dust collecting device may adsorb dust in the air, so that the dust measuring device may measure the concentration of the dust.
The specific implementation manner of the dust sensor 22 is not limited herein, as long as the corresponding function can be achieved.
As a preferred embodiment, the processor 2 is further configured to control the prompting device to send out a serious alarm message when the dust amount is greater than a preset value and the dust concentration is greater than a preset concentration.
Further, in order to avoid the interior dust volume of server too much, cause serious threat to the server, consequently, dust volume is greater than the default and when dust concentration is greater than preset concentration in this application, judges that the dust volume in the server is too much, and 2 control prompt devices of treater send serious alarm information this moment.
Specifically, the serious alarm information may be, but is not limited to, a combination of sound alarm information, display alarm information and vibration alarm information, so that a worker can more easily find the condition of excessive dust amount, and the dust can be timely processed.
As a preferred embodiment, further comprising:
a first connector 51 arranged between the processor 2 and the wind pressure sensor 21 for realizing signal transmission between the processor 2 and the wind pressure sensor 21;
as a preferred embodiment, the method further comprises the following steps: and a second connector 52 arranged between the processor 2 and the fan for realizing signal transmission between the processor 2 and the fan.
As a preferred embodiment, the method further comprises the following steps:
a first connector 51 provided between the processor 2 and the dust sensor 22 for realizing signal transmission between the processor 2 and the dust sensor 22;
referring to fig. 5, fig. 5 is a specific structural block diagram of a dust detection system provided in the present application, wherein when the processor 2 is a BMC, a first connector 51 may be but not limited to be disposed between the BMC and the wind pressure sensor 21 and between the BMC and the dust sensor 22 for transmitting signals between the BMC and the wind pressure sensor 21 and between the BMC and the dust sensor 22 (where the transmitted signals may be control signals (such as a power on/off signal or a reset signal) sent by the BMC to the wind pressure sensor 21 and the dust sensor 22 and wind pressure detection signals output by the wind pressure sensor 21 and dust detection signals output by the dust sensor 22), and in addition, the electrical signals in fig. 5 are power signals provided by the BMC to the wind pressure sensor 21 and the dust sensor 22 to ensure that the two sensors can be powered on normally.
Similarly, a second connector 52 may be provided between the fan and the BMC, so that signals may be transmitted between the BMC and the fan through the second connector, where the signals may be, but are not limited to, a fan control signal (the BMC sends a speed control signal to the fan, etc.) and a fan power supply signal. In addition, a fan power supply control signal can be further arranged, and the BMC acquires a fan power consumption signal and a fan rotating speed signal through the fan power supply control chip and the second connector.
A server comprises the dust monitoring device.
For solving the above technical problem, the present application further provides a server, and please refer to the above embodiments for the introduction of the server, which is not described herein again.
It should also be noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A dust monitoring system applied to a server comprises:
the dust detection device is arranged in the server and is used for detecting the dust amount in the server;
and the processor is connected with the dust detection device at the first end and used for controlling the prompting device to send out prompting information when the dust amount is larger than a preset value.
2. The dust monitoring system of claim 1, wherein the server comprises a fan disposed from inside to outside and a mask having a plurality of holes, and the dust detecting device comprises:
the dustproof net is arranged between the face mask and the fan and fixed on the face mask, and holes in the dustproof net are smaller than holes in the face mask;
the wind pressure sensor is arranged between the dust screen and the fan and used for detecting the wind pressure of the position where the wind pressure sensor is located;
the processor is specifically used for determining the dust amount on the dust screen according to the wind pressure and the rotating speed of the fan and controlling the prompting device to send out first prompting information when the dust amount is larger than the preset value.
3. The dust monitoring system according to claim 2, wherein the processor is further configured to determine a wind pressure-power consumption curve according to the wind pressure output by the wind pressure sensor, the rotation speed of the fan, and the power consumption, determine whether the wind pressure-power consumption curve is within a range of a preset wind pressure-power consumption curve, and if not, control the prompting device to send a second prompting message.
4. The dust monitoring system of claim 2, wherein the dust screen has a predetermined hole formed therein, and the dust detecting device further comprises:
the dust sensor is arranged at the preset hole, the edge of the dust sensor is tightly attached to the edge of the preset hole, and the dust sensor is used for detecting the dust concentration of the position where the dust sensor is located;
the processor is specifically configured to control the prompting device to send out a third prompting message when the dust concentration is greater than a preset concentration.
5. The dust monitoring system of claim 4, wherein the dust sensor comprises:
the dust collecting device is arranged on the dustproof net and is used for collecting dust at the position of the dust collecting device;
and the dust measuring device is connected with the dust mobile phone device and is used for measuring the collected dust concentration to obtain the dust concentration.
6. The dust monitoring system of claim 4, wherein the processor is further configured to control the prompting device to send a serious alarm message when the dust amount is greater than the preset value and the dust concentration is greater than a preset concentration.
7. The dust monitoring system of claim 2, further comprising:
and the first connector is arranged between the processor and the wind pressure sensor and is used for realizing the signal transmission between the processor and the wind pressure sensor.
8. The dust monitoring system of claim 2, wherein a second connector is provided between the processor and the fan for enabling signal transmission between the processor and the fan.
9. The dust monitoring system of claim 4, further comprising:
and the first connector is arranged between the processor and the dust sensor and is used for realizing signal transmission between the processor and the dust sensor.
10. A server, characterized in that it comprises a dust monitoring device according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210582318.XA CN114780352A (en) | 2022-05-26 | 2022-05-26 | Dust monitoring system and server |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210582318.XA CN114780352A (en) | 2022-05-26 | 2022-05-26 | Dust monitoring system and server |
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| Publication Number | Publication Date |
|---|---|
| CN114780352A true CN114780352A (en) | 2022-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210582318.XA Pending CN114780352A (en) | 2022-05-26 | 2022-05-26 | Dust monitoring system and server |
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| CN (1) | CN114780352A (en) |
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- 2022-05-26 CN CN202210582318.XA patent/CN114780352A/en active Pending
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