CN113340933B - Air duct detection system and air duct detection method - Google Patents
Air duct detection system and air duct detection method Download PDFInfo
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- CN113340933B CN113340933B CN202010138783.5A CN202010138783A CN113340933B CN 113340933 B CN113340933 B CN 113340933B CN 202010138783 A CN202010138783 A CN 202010138783A CN 113340933 B CN113340933 B CN 113340933B
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
Abstract
The embodiment of the invention discloses an air duct detection system and an air duct detection method, wherein the system comprises an air duct detection device and electronic equipment, the electronic equipment comprises a first subsystem and a second subsystem, and the first subsystem and the second subsystem are in a serial structure on an air duct; the air duct detection device comprises a first temperature detection device, a second temperature detection device and a processor, wherein the first temperature detection device and the second temperature detection device are electrically connected with the processor, the first temperature detection device is arranged between the first subsystem and the second subsystem and used for detecting the first temperature of the air outlet side of the first subsystem, the second temperature detection device is arranged on the air outlet side of the second subsystem and used for detecting the second temperature of the air outlet side of the second subsystem, the air outlet side of the second subsystem is close to the position of the rear windshield panel, and the processor is used for determining that the air duct of the electronic equipment is abnormal when the second temperature is lower than the first temperature. The system can realize the detection of the air duct abnormality caused by the fact that the rear wind shielding panel of the electronic equipment is not in place.
Description
Technical Field
The application relates to the technical field of electronic equipment maintenance, in particular to an air duct detection system and an air duct detection method.
Background
Most electronic equipment adopts the forced air cooling mode heat dissipation, and its wind channel all is through special design, so in the in-service use, need guarantee the accuracy in wind channel.
At the initial stage of electronic equipment design, corresponding air channels are generally designed according to the positions of internal power devices, heat generated by the power devices can be transmitted through the fixed air channels, and heat dissipation performance is guaranteed. In order to improve the universality of electronic equipment, currently, many electronic equipment adopt a daughter card mode, and a customer can install a daughter card on a corresponding slot position according to the requirement of the customer. For slots where daughter cards do not need to be installed, a rear windshield panel (dummy panel) is typically installed to ensure normal heat transfer from the air duct.
However, in practical applications, the rear windshield panel is often pulled out or not installed in place, and at this time, a new air duct is formed between the rear windshield panel and the air outlet, and the formation of the new air duct may cause the air duct abnormality of the electronic equipment, which may cause a large drop in the air volume passing through the power device, hinder the heat transfer in the normal air duct, and reduce the heat dissipation performance inside the electronic equipment, thereby affecting the reliability of the equipment.
Disclosure of Invention
The embodiment of the invention provides an air duct detection system and an air duct detection method, and the air duct detection system can realize the detection of air duct abnormity of electronic equipment caused by the out-of-position rear wind shield panel.
To achieve the object, an embodiment of the present invention provides an air duct detecting system, including: an air duct detection device and an electronic device;
the electronic equipment comprises a first subsystem and a second subsystem, the first subsystem is close to an air inlet of the electronic equipment, the second subsystem is close to the position of a rear windshield panel of the electronic equipment, and the first subsystem and the second subsystem are in a serial structure on an air duct of the electronic equipment;
the air duct detection device comprises a first temperature detection device, a second temperature detection device and a processor, and the first temperature detection device and the second temperature detection device are electrically connected with the processor;
the first temperature detection device is arranged between the first subsystem and the second subsystem and used for detecting a first temperature, wherein the first temperature is the temperature of the air outlet side of the first subsystem;
the second temperature detection device is arranged on the air outlet side of the second subsystem and used for detecting a second temperature, and the second temperature is the temperature of the air outlet side of the second subsystem; the air outlet side of the second subsystem is positioned on the side wall of the electronic equipment and close to the position of the rear windshield panel;
the processor is used for determining that the air duct of the electronic equipment is abnormal when the second temperature is lower than the first temperature.
Furthermore, the air channel detection device also comprises an alarm which is electrically connected with the processor;
the processor is further used for outputting an air duct abnormity alarm instruction after the air duct abnormity of the electronic equipment is determined;
the alarm is used for sending out an air duct abnormity alarm according to the air duct abnormity alarm instruction.
Furthermore, the first temperature detection device comprises N first sub-temperature detection devices, wherein N is more than or equal to 1 and is an integer;
the N first sub-temperature detection devices are arranged between the first subsystem and the second subsystem and used for respectively detecting the temperature of the air outlet side of the first subsystem, and the first temperature is the average value of the temperature of the air outlet side of the first subsystem detected by the N first sub-temperature detection devices.
Further, the processor is further configured to determine that the air duct of the electronic device is normal when the second temperature is greater than or equal to the first temperature.
Furthermore, the air duct detection device further comprises a third temperature detection device, the third temperature detection device is arranged on the air inlet side of the first subsystem and electrically connected with the processor, and is used for detecting a third temperature, and the third temperature is the temperature of the air inlet side of the first subsystem;
the processor is used for determining that the air duct of the electronic equipment is abnormal when the temperature difference between the second temperature and the third temperature is smaller than the temperature difference between the first temperature and the third temperature;
the processor is further used for determining that the air duct of the electronic equipment is normal when the temperature difference between the second temperature and the third temperature is greater than or equal to the temperature difference between the first temperature and the third temperature.
Based on the same inventive concept, the embodiment of the invention also provides an air duct detection method, which comprises the following steps:
acquiring a first temperature of an air outlet side of a first subsystem;
acquiring a second temperature of the air outlet side of the second subsystem;
and if the second temperature is lower than the first temperature, determining that the air duct of the electronic equipment is abnormal.
Further, after determining that the air duct of the electronic device is abnormal, the air duct detecting method further includes:
and outputting an air duct abnormity alarm instruction.
Further, acquiring the first temperature of the air outlet side of the first subsystem comprises:
respectively acquiring the temperatures of the air outlet sides of the N first subsystems;
and calculating the average value of the temperatures of the air outlet sides of the N first subsystems, wherein the average value is the first temperature.
Further, the air duct detection method further comprises the following steps:
and if the second temperature is greater than or equal to the first temperature, determining that the air duct of the electronic equipment is normal.
Further, the air duct detection method further comprises the following steps:
acquiring a third temperature of the air inlet side of the first subsystem;
if the temperature difference between the second temperature and the third temperature is smaller than the temperature difference between the first temperature and the third temperature, determining that the air duct of the electronic equipment is abnormal;
and if the temperature difference between the second temperature and the third temperature is greater than or equal to the temperature difference between the first temperature and the third temperature, determining that the air duct of the electronic equipment is normal.
The air duct detection device is formed by integrating the first temperature detection device, the second temperature detection device and the processor in the electronic equipment, the first temperature detection device and the second temperature detection device are electrically connected with the processor, the first temperature detection device is arranged between the first subsystem and the second subsystem of the electronic equipment to detect the first temperature of the air outlet side of the first subsystem, the second temperature detection device is arranged on the air outlet side of the second subsystem to detect the second temperature of the air outlet side of the second subsystem, the processor is utilized to determine the air duct abnormity of the electronic equipment when the second temperature is lower than the first temperature, the problem of detection of the air duct abnormity condition of the electronic equipment due to the fact that the rear windshield panel is not in place is solved, and detection of the air duct condition of the electronic equipment is achieved.
Drawings
Fig. 1 is a three-dimensional structure example diagram of a conventional electronic apparatus;
FIG. 2 is a schematic structural diagram of an air duct detection system according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of another wind tunnel detection system according to an embodiment of the present invention;
FIG. 4 is a schematic flow chart illustrating a method for detecting an air duct according to an embodiment of the present invention;
FIG. 5 is a schematic flow chart illustrating another method for detecting a wind tunnel according to an embodiment of the present invention;
fig. 6 is a schematic flow chart of another air duct detection method according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
The duct generally refers to the path of the wind from the inlet to the outlet. In the technical field of thermal design of electronic equipment, in order to ensure the heat dissipation effect, an air duct is generally designed according to the layout of power devices at the initial design stage, so that the air duct passes through too many heating devices as much as possible to take away more heat. When the electronic equipment is formed, the corresponding air duct is generally arranged in the electronic equipment, and under some special conditions, the existing air duct is blocked or a new air duct is formed, so that the air quantity passing through the heating device is greatly reduced, and the air duct is considered to be abnormal.
For example, the electronic device may have a plurality of pairs of air inlets and air outlets, and the correspondence between the air inlets and the air outlets may be that one air inlet corresponds to a plurality of air outlets, or a plurality of air inlets correspond to one air outlet, or a plurality of air inlets correspond to a plurality of air outlets. An air duct is formed between each pair of air inlet and air outlet, and the cold air outside the equipment carries the heat of the flowing area out of the electronic equipment along the air duct. For convenience of explaining the problems in the background art and explaining the technical solutions of the present application, a duct carrying the most heat (i.e., the duct AC described below) is taken as an example for description, and the air inlets and the air outlets corresponding to the duct are taken as the air inlets and the air outlets of the electronic devices, and other air inlets, air outlets, and ducts of the electronic devices are not considered within the scope of the embodiments of the present invention.
Fig. 1 is a three-dimensional structure example of a conventional electronic device, in which a plurality of card slots 140 are provided at a position of a rear windshield panel of the electronic device 100, and each card slot 140 may mount therein a daughter card having a different function. For example, according to the design requirement of the air duct, in order to make one air duct pass through as many heat generating devices as possible, an air outlet 130 may be provided on the side wall near the rear panel of the windshield, so that the external cold air will enter from the air inlet on the front side of the electronic device 100 and flow through most of the heat generating devices along the air duct AC to take away more heat.
To ensure that the air duct AC can normally dissipate heat, all the slots are usually required to be in a wind-shielding state, so that external cold air can take away more heat in the electronic device 100 along the air duct AC. For example, the implementation manner may be to install a daughter card with a corresponding function in each card slot, or to install daughter cards in some card slots according to the functional requirements, and install a rear windshield panel (dummy panel) in the remaining card slots. However, customers often install daughter cards in only some of the card slots according to their product function requirements, but not install dummy panels in other card slots, resulting in the card slots without dummy panels becoming air inlets, and thus, new air ducts BC (see fig. 1) will be introduced into the electronic device 100. Because the air outlet 130 is close to the rear panel of the windshield, the path through which the new air duct BC flows is far smaller than the path through which the air duct AC flows, and thus, according to the principle of inertia of air, a large amount of air will flow through the air duct with a short path, that is, a large amount of air will flow along the air duct BC passing through the less heat generating devices, which causes a large amount of air volume of the air duct AC passing through the large amount of heat generating devices to decrease greatly, causing the air duct AC of the electronic device to be abnormal, and if the air volume cannot be found in time, the heat dissipation of the electronic device 100 will be affected, or even the stable operation of the electronic device will be affected.
In order to solve the above problem, an embodiment of the present invention provides an air duct detecting system, in which an air duct detecting device is disposed in an electronic device 100 to detect an air duct state of the electronic device 100 and determine whether an air duct of the electronic device is normal. In the embodiment of the present invention, the air duct AC with the largest heat is still taken as an example for explanation, and whether the air duct AC is normal or not is determined by the air duct detecting device.
Fig. 2 is a schematic structural diagram of an air duct detecting system according to an embodiment of the present invention, referring to fig. 2, the air duct detecting system 10 includes an air duct detecting device and an electronic apparatus 100, where the electronic apparatus 100 includes a first subsystem 110 and a second subsystem 120, the first subsystem 110 is close to an air inlet of the electronic apparatus 100, the second subsystem 120 is close to a rear windshield panel of the electronic apparatus 100, and the first subsystem 110 and the second subsystem 120 are in a serial structure on an air duct AC of the electronic apparatus 100; the air duct detection device comprises a first temperature detection device 210, a second temperature detection device 220 and a processor 230, wherein the first temperature detection device 210 and the second temperature detection device 220 are electrically connected with the processor 230, the first temperature detection device 210 is arranged between the first subsystem 110 and the second subsystem 120 and used for detecting a first temperature, the first temperature is the temperature of the air outlet side of the first subsystem 110, the second temperature detection device 220 is arranged on the air outlet side of the second subsystem 120 and used for detecting a second temperature, the second temperature is the temperature of the air outlet side of the second subsystem 120, the air outlet side of the second subsystem 120 is located on the side wall of the electronic equipment and close to the position of the rear windshield panel, and the processor 230 is used for determining that the air duct of the electronic equipment is abnormal when the second temperature is smaller than the first temperature.
The air duct detecting device determines whether the air duct AC of the electronic device 100 is normal by detecting the temperature, in other words, the air duct detecting device determines whether the air volume on the air duct AC is enough to meet the heat dissipation requirement by detecting the temperature. For example, the heat generating devices passing through the air duct AC may be divided into a first subsystem 110 and a second subsystem 120 along the flow direction of the air in the air duct AC, and the first subsystem 110 and the second subsystem 120 are in a serial structure on the air duct AC, that is, the air flows out of the electronic device 100 after passing through the first subsystem 110 and the second subsystem 120 in sequence along the air duct AC. The first subsystem 110 is close to the air inlet of the electronic device 100, the second subsystem 120 is close to or in contact with the rear panel of the windshield, a first temperature detection device 210 is disposed between the first subsystem 110 and the second subsystem 120, and a second temperature detection device 220 is disposed on the inner side of the air outlet 130 of the electronic device 100 (i.e., on the air outlet side of the second subsystem 120). The air duct detecting device obtains a first temperature of the air outlet side of the first subsystem 110 through the first temperature detecting device 210, obtains a second temperature of the air outlet side of the second subsystem 120 through the second temperature detecting device 220, and judges the first temperature and the second temperature through the processor 230, thereby judging the state of the air duct AC. The working principle is explained as follows:
assume that the external environment temperature of the electronic device 100 is T, the first temperature is T1, the second temperature is T2, the air volume entering the electronic device 100 is F, the power consumption of the first subsystem 110 is P1, the power consumption of the second subsystem 120 is P2, and the total power consumption of the electronic device is P.
Can be obtained according to the thermodynamic formula Q = Cm Delta T
Wherein Δ T represents a temperature rise value, P represents power (power consumption), F represents air volume, C represents specific heat capacity, ρ represents air density, and C and ρ may be regarded as constant values in the same environment. When the sub-card or the wind shielding rear panel is arranged on the clamping groove at the position of the wind shielding rear panel, namely the air duct AC is normal, for the electronic equipment, the requirements on the wind shielding rear panel are met
For the first subsystem 110, satisfy
For the second subsystem 120, satisfy
Since the first subsystem 110 and the second subsystem 120 are in a serial configuration on the air duct of the electronic device, T2 ≧ T1 when the air duct AC is normal, and in particular, T2= T1 when P2=0, as can be derived from the above formula.
As described above, if a part of the slots become air inlets because the rear panel of the windshield is not in place, a new air duct BC (see fig. 2) is introduced, which causes an abnormality in the air duct AC. For convenience of description, in the present embodiment, the area through which the wind tunnel BC passes may be defined as the fourth subsystem 122, the fourth subsystem 122 is a part of the second subsystem 120, and the wind outlet side of the fourth subsystem 122 is the same as the wind outlet side of the second subsystem 120. The area of the second subsystem 120 other than the fourth subsystem 122 may be defined as a third subsystem 121. As can be seen from fig. 2, the first subsystem 110 and the third subsystem 121 are in a serial configuration on the air duct AC, and the fourth subsystem is in a serial configuration on the air duct ACThe wind tunnel BC of the subsystem 122 is parallel to the wind tunnel AC, in other words, the wind will flow through the heat generating devices in the electronic device 100 along the wind tunnel AC and the wind tunnel BC at the same time, specifically, the wind will flow out of the electronic device 100 through the first subsystem 110 and the third subsystem 121 along the wind tunnel AC, and through the fourth subsystem 122 along the wind tunnel BC. Accordingly, the air volume F may be divided into an air volume F1 passing through the first and third subsystems 110 and 121 and an air volume F2 passing through the fourth subsystem 122. As mentioned before, F2 is much larger than F1 according to the principle of wind inertia. For the first subsystem 110, satisfy
F1 is greatly reduced, so that (T1-T) is greatly increased, and the heat dissipation performance of the electronic equipment is poor. For the fourth subsystem 122, satisfy
Since F2 is much larger than F1, and the proportion of the power consumption P4 of the fourth subsystem 122 to the total power consumption P of the electronic device is small, T2-T is greatly reduced, the power consumption of the area where the fourth subsystem 122 is located in the actual product is substantially 0, and the temperature rise of the cold air outside the electronic device is substantially 0 after the cold air passes through the area where the power consumption is substantially 0, so T2-T is approximately equal to 0. From this, it can be seen that T2 < T1 when the air duct AC is abnormal.
Based on the above analysis, the processor 230 may determine that the air duct of the electronic device is abnormal when determining that the second temperature of the air outlet side of the second subsystem 120 is lower than the first temperature of the air outlet side of the first subsystem 110.
It should be noted that, the first temperature detection device 210 is disposed between the first subsystem 110 and the second subsystem 120 to obtain the temperature of the air outlet side of the first subsystem 110, so as to effectively ensure the accuracy of the detection result. This is because the first subsystem 110 is far away from the position of the rear windshield panel, and when the air duct AC is abnormal, the wind entering from the position of the rear windshield panel cannot take away the heat generated by the first subsystem 110, so that the first temperature of the air outlet side of the first subsystem 110 increases due to the decrease of the wind volume. And the second temperature of the air-out side of the second subsystem 120 (or the fourth subsystem 122) is greatly reduced due to the formation of the new air channel BC. Thus, the duct AC anomaly may be determined based on a criterion that the second temperature is less than the first temperature.
According to the embodiment of the invention, the air duct detection device composed of the first temperature detection device, the second temperature detection device and the processor is integrated in the electronic equipment, the first temperature detection device and the second temperature detection device are both electrically connected with the processor, the first temperature detection device is arranged between the first subsystem and the second subsystem of the electronic equipment to detect the first temperature of the air outlet side of the first subsystem, the second temperature detection device is arranged on the air outlet side of the second subsystem to detect the second temperature of the air outlet side of the second subsystem, and the processor is utilized to determine the air duct abnormality of the electronic equipment when the second temperature is lower than the first temperature, so that the problem of detecting the air duct abnormality caused by the fact that the rear panel of the wind screen is not in place of the electronic equipment is solved, and the detection of the air duct condition of the electronic equipment is realized.
Fig. 3 is a schematic structural diagram of another air duct detecting system according to an embodiment of the present invention, and referring to fig. 3 on the basis of the above embodiment, optionally, the air duct detecting device further includes an alarm 240, the alarm 240 is electrically connected to the processor 230, the processor 230 is further configured to output an air duct abnormality alarm instruction after determining that the air duct of the electronic device 100 is abnormal, and the alarm 240 is configured to issue an air duct abnormality alarm according to the air duct abnormality alarm instruction, and prompt a user to install a rear windshield panel at a rear windshield panel position.
By setting the alarm 240, after the processor 230 determines that the air duct of the electronic device 100 is abnormal, an air duct alarm can be issued according to the air duct abnormal alarm instruction of the processor 230 to remind a user that the air duct of the electronic device is abnormal, and a wind shielding rear panel needs to be installed to ensure normal heat dissipation of the electronic device.
For example, the alarm 240 may include an indicator light and/or a buzzer, and the user may be prompted by flashing the indicator light or sounding the buzzer to indicate that the air duct of the electronic device 100 is abnormal and the wind shielding rear panel needs to be installed.
Besides the alarm 240, the air channel detection device may further include a wireless communication device for prompting the user of the electronic device 100 that the air channel is abnormal by means of wireless signal transmission.
Referring to fig. 3, optionally, the first temperature detecting device 210 includes N first sub-temperature detecting devices 211, where N is greater than or equal to 1 and N is an integer, the N first sub-temperature detecting devices 211 are all disposed between the first subsystem 110 and the second subsystem 120 and are configured to detect the temperature of the air outlet side of the first subsystem 110, and the first temperature is an average value of the temperatures of the air outlet sides of the first subsystem 110 detected by the N first sub-temperature detecting devices 211.
For example, fig. 3 only shows two first sub-temperature detecting devices 211, and a person skilled in the art may set the number of the first sub-temperature detecting devices 211 according to practical situations, which is not limited in the embodiment of the present invention. The advantage of so setting up is that can detect the whole temperature rise condition of first subsystem 110 to guarantee the accuracy of testing result.
Optionally, the processor 230 is further configured to determine that the air duct of the electronic device is normal when the second temperature is greater than or equal to the first temperature.
When the air duct of the electronic equipment is determined to be normal, the first temperature and the second temperature can be continuously monitored so as to ensure that the air duct of the electronic equipment is always in a normal state.
With reference to fig. 3, optionally, the air duct detecting device further includes a third temperature detecting device 250, where the third temperature detecting device 250 is disposed on the air inlet side of the first subsystem 110 and electrically connected to the processor 230, and is configured to detect a third temperature, where the third temperature is the temperature of the air inlet side of the first subsystem 110, the processor 230 is configured to determine that the air duct of the electronic device is abnormal when the temperature difference between the second temperature and the third temperature is smaller than the temperature difference between the first temperature and the third temperature, and the processor 230 is further configured to determine that the air duct of the electronic device is normal when the temperature difference between the second temperature and the third temperature is greater than or equal to the temperature difference between the first temperature and the third temperature.
The third temperature detecting device 250 is arranged to detect the third temperature of the air inlet side of the first subsystem 110, so as to obtain the external environment temperature of the electronic device 100. It is understood that the temperature difference between the first temperature and the third temperature is the temperature increase value of the first subsystem 110, and the temperature difference between the second temperature and the third temperature is the temperature increase value of the electronic device 100. When the air duct is abnormal, the temperature rise value of the electronic device 100 is close to the temperature rise value of the fourth subsystem 122, and the temperature rise value of the fourth subsystem 122 is smaller than the temperature rise value of the first subsystem 110, so that when the temperature difference between the second temperature and the third temperature is smaller than the temperature difference between the first temperature and the third temperature, the air duct of the electronic device 100 may be determined to be abnormal. By comparing the temperature rise value of the electronic device 100 with the temperature rise value of the first subsystem 110, whether the air duct of the electronic device 100 is normal is determined, so that the accuracy of the detection result can be improved, and the erroneous determination caused by the error of the detection result of the first temperature and the detection result of the second temperature can be avoided.
Based on the same inventive concept, the embodiment of the invention also provides an air duct detection method, as shown in fig. 4. The method comprises the following steps:
301, obtaining a first temperature of the air outlet side of the first subsystem.
And 302, acquiring a second temperature of the air outlet side of the second subsystem.
According to the embodiment of the invention, the acquired first temperature of the air outlet side of the first subsystem is compared with the acquired second temperature of the air outlet side of the second subsystem, if the second temperature is lower than the first temperature, the air duct abnormity of the electronic equipment can be determined, the detection method is simple and effective, and the air duct abnormity of the electronic equipment caused by the out-of-position wind shield rear panel can be detected.
Optionally, if the second temperature is greater than or equal to the first temperature, it is determined that the air duct of the electronic device is normal. The first temperature of the air outlet side of the first subsystem and the second temperature of the air outlet side of the second subsystem can be continuously detected subsequently, so that the air duct of the electronic equipment is always in a normal state, and the detailed description is omitted.
Fig. 5 is a schematic flow chart of another air duct detection method according to an embodiment of the present invention, which is further optimized. Referring to fig. 5, the method includes the steps of:
And 402, calculating the average value of the temperatures of the air outlet sides of the N first subsystems, wherein the average value is the first temperature.
So can detect the whole temperature rise condition of first subsystem, guarantee the accuracy of testing result.
And step 403, acquiring a second temperature of the air outlet side of the second subsystem.
And step 404, if the second temperature is lower than the first temperature, determining that the air duct of the electronic equipment is abnormal.
And step 405, outputting an air duct abnormity alarm instruction.
After the air duct of the electronic equipment is determined to be abnormal, a user is prompted to install a wind shielding rear panel in an alarming mode, and the electronic equipment can be guaranteed to be capable of dissipating heat normally.
The alarm can be realized by the modes of indicator light flashing, buzzer ringing or wireless signal transmission, and the details are not repeated herein.
Fig. 6 is a schematic flow chart of another air duct detecting method according to an embodiment of the present invention, and referring to fig. 6, the method includes the following steps:
and step 501, acquiring a first temperature of the air outlet side of the first subsystem.
And 502, acquiring a second temperature of the air outlet side of the second subsystem.
And step 503, acquiring a third temperature of the air inlet side of the first subsystem.
Step 504, if the temperature difference between the second temperature and the third temperature is smaller than the temperature difference between the first temperature and the third temperature, it is determined that the air duct of the electronic device is abnormal, and step 506 is executed.
And step 506, outputting an air duct abnormal alarm instruction.
In the method shown in fig. 6, the external environment temperature of the electronic device is obtained by obtaining the third temperature at the air inlet side of the first subsystem, the temperature rise value of the first subsystem is obtained by the temperature difference between the first temperature and the third temperature, the temperature rise value of the electronic device is obtained by the temperature difference between the second temperature and the third temperature, the air duct state of the electronic device is judged according to the temperature rise value of the electronic device and the temperature rise value of the first subsystem, and the accuracy of the judgment result is improved.
Preferably, the first temperature, the second temperature, and the third temperature are obtained simultaneously, and the second temperature and the third temperature may be average values of temperatures measured by a plurality of sub-temperature detection devices, so that accuracy of detection results can be ensured.
According to the invention, the electronic equipment is divided into the first subsystem and the second subsystem which are serial, the first temperature of the air outlet side of the first subsystem is obtained by adopting the first temperature detection device, the second temperature of the air outlet side of the second subsystem is obtained by adopting the second temperature detection device, and whether the original air channel is normal or not is judged according to the first temperature and the second temperature, so that the abnormal conditions of the air channel caused by the out-of-position of the wind shielding panel and the like of the electronic equipment can be detected, the accuracy and the reliability of monitoring are improved, and the normal heat dissipation of the electronic equipment is favorably ensured.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in some detail by the above embodiments, the invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the invention, and the scope of the invention is determined by the scope of the appended claims.
Claims (10)
1. An air duct detection system, comprising: an air duct detection device and an electronic device;
the electronic equipment comprises a first subsystem and a second subsystem, wherein the first subsystem is close to an air inlet of the electronic equipment, the second subsystem is close to the position of a rear windshield panel of the electronic equipment, and the first subsystem and the second subsystem are in serial structures on an air duct of the electronic equipment;
the air duct detection device comprises a first temperature detection device, a second temperature detection device and a processor, and the first temperature detection device and the second temperature detection device are both electrically connected with the processor;
the first temperature detection device is arranged between the first subsystem and the second subsystem and is used for detecting a first temperature, and the first temperature is the temperature of the air outlet side of the first subsystem;
the second temperature detection device is arranged on the air outlet side of the second subsystem and used for detecting a second temperature, and the second temperature is the temperature of the air outlet side of the second subsystem; the air outlet side of the second subsystem is positioned on the side wall of the electronic equipment and close to the position of the wind shielding rear panel;
the processor is used for determining that the air duct of the electronic equipment is abnormal when the second temperature is lower than the first temperature; and the air duct abnormity introduces a new air duct for the position of the rear windshield panel.
2. The wind tunnel detection system according to claim 1, wherein the wind tunnel detection device further comprises an alarm, the alarm being electrically connected to the processor;
the processor is further used for outputting an air duct abnormity alarm instruction after the air duct abnormity of the electronic equipment is determined;
the alarm is used for sending out an air duct abnormity alarm according to the air duct abnormity alarm instruction.
3. The air duct detecting system according to claim 1, wherein the first temperature detecting device includes N first sub-temperature detecting devices, where N is greater than or equal to 1 and N is an integer;
n first sub temperature-detecting device all set up in first subsystem with between the second subsystem for detect respectively the temperature of first subsystem air-out side, first temperature is the average value of the temperature of first subsystem air-out side that N first sub temperature-detecting device detected.
4. The wind tunnel detection system according to any of claims 1-3, wherein the processor is further configured to determine that the wind tunnel of the electronic device is normal when the second temperature is greater than or equal to the first temperature.
5. The air duct detection system according to any one of claims 1-3, wherein the air duct detection device further comprises a third temperature detection device, the third temperature detection device is disposed on the air inlet side of the first subsystem and electrically connected to the processor for detecting a third temperature, and the third temperature is the temperature of the air inlet side of the first subsystem;
the processor is configured to determine that an air duct of the electronic device is abnormal when a temperature difference between the second temperature and the third temperature is smaller than a temperature difference between the first temperature and the third temperature;
the processor is further configured to determine that an air duct of the electronic device is normal when a temperature difference between the second temperature and the third temperature is greater than or equal to a temperature difference between the first temperature and the third temperature.
6. An air duct detection method implemented by using the air duct detection system according to any one of claims 1 to 5, comprising:
acquiring a first temperature of the air outlet side of the first subsystem;
acquiring a second temperature of the air outlet side of the second subsystem;
and if the second temperature is lower than the first temperature, determining that the air duct of the electronic equipment is abnormal.
7. The method for detecting the air duct according to claim 6, after determining that the air duct of the electronic device is abnormal, further comprising:
and outputting an air duct abnormity alarm instruction.
8. The air duct detection method according to claim 6 or 7, wherein obtaining the first temperature of the air outlet side of the first subsystem comprises:
respectively acquiring the temperatures of the air outlet sides of the N first subsystems;
and calculating the average value of the temperatures of the air outlet sides of the N first subsystems, wherein the average value is the first temperature.
9. The wind channel detection method according to claim 6 or 7, further comprising:
and if the second temperature is greater than or equal to the first temperature, determining that the air duct of the electronic equipment is normal.
10. The wind channel detection method according to claim 6 or 7, further comprising:
acquiring a third temperature of the air inlet side of the first subsystem;
if the temperature difference between the second temperature and the third temperature is smaller than the temperature difference between the first temperature and the third temperature, determining that the air duct of the electronic equipment is abnormal;
and if the temperature difference between the second temperature and the third temperature is greater than or equal to the temperature difference between the first temperature and the third temperature, determining that the air duct of the electronic equipment is normal.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005040714A (en) * | 2003-07-22 | 2005-02-17 | Matsushita Electric Works Ltd | Method for detecting abnormal quantity of airflow in garbage disposer |
| CN101206515A (en) * | 2006-12-19 | 2008-06-25 | 国际商业机器公司 | Detection of airflow anomalies in electronic equipment |
| JP2009133606A (en) * | 2007-10-29 | 2009-06-18 | Daikin Ind Ltd | Humidifier device |
| CN102307447A (en) * | 2011-08-29 | 2012-01-04 | 中兴通讯股份有限公司 | Heat dissipation method and device |
| CN106211706A (en) * | 2015-06-01 | 2016-12-07 | 发那科株式会社 | The method of the flow abnormalities of motor drive and notice fluid |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101464713A (en) * | 2007-12-21 | 2009-06-24 | 联想(北京)有限公司 | Computer and windage change monitoring method |
| US7698095B2 (en) * | 2008-01-30 | 2010-04-13 | International Business Machines Corporation | Apparatus, system, and method for detecting fan rotation direction in electronic devices |
| CN103025120B (en) * | 2011-09-22 | 2016-03-30 | 联想(北京)有限公司 | Cooling system, heat dissipating method and electronic equipment thereof |
| CN204694979U (en) * | 2015-06-15 | 2015-10-07 | 东信科技（深圳）有限公司 | Projector Air Filter jam detection mechanism |
| CN107315308A (en) * | 2016-04-27 | 2017-11-03 | 深圳市光峰光电技术有限公司 | Projecting apparatus and its cooling control method |
| CN109769381A (en) * | 2019-03-01 | 2019-05-17 | 深圳市建恒测控股份有限公司 | Cooling system and its control method, electronic equipment |
-
2020
- 2020-03-03 CN CN202010138783.5A patent/CN113340933B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005040714A (en) * | 2003-07-22 | 2005-02-17 | Matsushita Electric Works Ltd | Method for detecting abnormal quantity of airflow in garbage disposer |
| CN101206515A (en) * | 2006-12-19 | 2008-06-25 | 国际商业机器公司 | Detection of airflow anomalies in electronic equipment |
| JP2009133606A (en) * | 2007-10-29 | 2009-06-18 | Daikin Ind Ltd | Humidifier device |
| CN102307447A (en) * | 2011-08-29 | 2012-01-04 | 中兴通讯股份有限公司 | Heat dissipation method and device |
| CN106211706A (en) * | 2015-06-01 | 2016-12-07 | 发那科株式会社 | The method of the flow abnormalities of motor drive and notice fluid |
Non-Patent Citations (1)
| Title |
|---|
| 基于FLUENT的变频中央空调室外机散热风道的优化设计;蔺勇智;《中国新技术新产品》;20171231(第3期);第64-65页 * |
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