CN114296517B - Fan installation detection system, method and equipment - Google Patents
Fan installation detection system, method and equipment Download PDFInfo
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- CN114296517B CN114296517B CN202111433780.5A CN202111433780A CN114296517B CN 114296517 B CN114296517 B CN 114296517B CN 202111433780 A CN202111433780 A CN 202111433780A CN 114296517 B CN114296517 B CN 114296517B
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- 238000001514 detection method Methods 0.000 title claims abstract description 86
- 238000009434 installation Methods 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000002184 metal Substances 0.000 claims abstract description 130
- 230000002159 abnormal effect Effects 0.000 claims description 10
- 238000007689 inspection Methods 0.000 claims 3
- 230000017525 heat dissipation Effects 0.000 abstract description 8
- 238000007726 management method Methods 0.000 description 42
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Abstract
The invention discloses a fan installation detection system, a method and equipment, belonging to the technical field of electronics, wherein the system comprises a fan, a fan cover, a fan detection switch, a light emitting diode and a power supply, wherein: the fan detection switch comprises two metal contacts arranged on the fan and two metal contacts arranged on the fan cover, wherein the two metal contacts arranged on the fan cover are connected through metal wires, and when the fan is correctly installed with the fan cover, the two metal contacts on the fan are contacted with the two metal contacts on the fan cover so as to conduct the first metal contact and the second metal contact of the fan. According to the invention, the fan detection switch is formed by adding the metal contacts on the fan and the fan cover, so that the problem that whether the fan is reversely installed or not cannot be judged after the fan of the server is installed can be effectively solved, and the economic loss to factories caused by the influence of heat dissipation problem caused by the reverse installation of the fan on the shipment is prevented.
Description
Technical Field
The present invention relates to the field of electronic technologies, and in particular, to a system, a method, and an apparatus for detecting fan installation.
Background
Along with the rapid development of cloud computing application, informatization and intelligence gradually cover various fields of society. People's daily work life also more and more need exchange through the network, and the network data volume is also at explosive growth, and the server is as processing and the core equipment of storage data, and the market demand is increasingly, and the volume of delivering goods is also steadily growing year by year.
With more orders and shipment, the pressure facing the factory for production and assembly is increased, and problems in some production and assembly processes are exposed more obviously, so that the shipment time for customers is influenced, and even production accidents occur. Therefore, fool-proof measures for fans on a server production and assembly line are particularly important. The server is used as a high-performance computing and storage device, and particularly an artificial intelligent server, a heterogeneous server and the like which are rapidly growing in recent years can provide a great deal of computing power; at the same time, however, the requirements for heat dissipation become more stringent. The fan is used as core equipment of the server heat dissipation system, and needs to be installed correctly according to requirements. Most of the fans of the current server are mounted together by using a fan frame and then fixed in the server case, and each fan is correspondingly mounted on the fan frame by using a separate fan cover. Because fans shipped by manufacturers are not assembled, fan covers are required to be installed again in the production line and finally fixed in the server chassis through the fan frame. In the process, the fan does not support fool-proofing, so the phenomenon that the air inlet and the air outlet of the fan are reversely arranged can occur, but the wiring terminal of the fan is correctly matched with the connector on the board card of the server, so that the problem can not be found even in the whole machine test link. However, in some practical situations with limited heat dissipation performance, the fan assembly is light, so that the overall performance of the server is affected, the fan assembly is heavy, overheat and frequency reduction are realized, even shutdown and other phenomena occur, and accordingly running business is off line, and great loss is brought to factories.
Fig. 1 is a schematic diagram of a fan rack commonly used in a current server, in which 6-8 fans can be installed according to different specifications, and generally, locking devices fixed to a server chassis are disposed on two sides, which is not shown here. Fig. 2 is a schematic view of a fan mounted in a fan housing that is a square-like shape with underlying protrusions that are terminals of signal and power lines for connection to a fan connector on a board.
The current scheme is that a fan is firstly arranged in a fan cover, then an air inlet fan frame is arranged in a case, foolproof measures aiming at the fan are not taken in the process, and whether the fan is reversely arranged cannot be identified.
It can be seen that firstly the fans are not foolproof, secondly no foolproof measures are provided in the installation process, and in the subsequent whole machine test link, all fans cannot be reversely installed, so that problems are not necessarily found when the fans are inspected due to the phenomenon of overtemperature, only the attention of an installer can be relied on, but when a large amount of goods are delivered, the error installation is difficult to completely stop, so that risks exist in production.
Disclosure of Invention
In order to overcome the technical defects, the invention provides a fan installation detection system, a fan installation detection method and fan installation detection equipment, wherein a fan detection switch is formed by adding metal contacts on a fan and a fan cover, so that the problem that whether the fan is reversely installed or not can be effectively solved, the problem that the fan is reversely installed after the fan is installed of a server is solved, the fan which is reversely installed is timely reassembled after the problem is found, and the loss caused by the fact that the heat dissipation problem is caused by the reverse installation of the fan and the influence on shipment is prevented.
The specific technical scheme provided by the embodiment of the invention is as follows:
in a first aspect, a fan installation detection system is provided, the system comprising a fan, a fan housing, a fan detection switch, a light emitting diode, a power supply, wherein:
the fan detection switch comprises two metal contacts arranged on the fan and two metal contacts arranged on the fan cover;
two metal contacts on the fan are arranged at an air outlet of the fan, wherein the first metal contact is grounded, and the second metal contact is connected with the cathode of the light-emitting diode;
the two metal contacts arranged on the fan cover are connected through metal wires, and when the fan and the fan cover are correctly installed, the two metal contacts on the fan are contacted with the two metal contacts on the fan cover so as to conduct the first metal contact and the second metal contact of the fan;
the power supply comprises a first power supply and a second power supply, wherein the first power supply is connected with the cathode of the light-emitting diode, and the second power supply is connected with the anode of the light-emitting diode;
the lighting state of the light emitting diode is used for indicating whether the fan and the fan cover are installed normally or not.
Further, the system also comprises a baseboard management controller and an expansion chip,
the signal acquisition end of the expansion chip is connected with the cathode of the light emitting diode, and the signal output end of the expansion chip is connected with the baseboard management controller through an I2C bus and is used for acquiring voltage information output by the fan detection switch and transmitting the voltage information to the baseboard management controller;
the baseboard management controller is used for reading the voltage information received by the expansion chip, recording log information and alarming when the received voltage information is at a high level, and prompting replacement or reassembly of the fan.
Further, the system also comprises a fixed resistor and a current limiting resistor,
the first end of the fixed resistor is connected with the first power supply, and the second end of the fixed resistor is connected with the negative electrode of the light-emitting diode;
the first end of the current limiting resistor is connected with the second power supply, and the second end of the current limiting resistor is connected with the positive electrode of the light emitting diode.
Further, the number of the pins of the fan is more than or equal to 8, wherein:
the first pin and the second pin are used for providing power for supplying power to the fan;
the third and fourth pipe feet are used for grounding;
the fifth pin and the sixth pin are used for measuring the rotating speed of the fan;
the seventh pin is used for detecting whether the fan is installed correctly or not;
the eighth pin is used for adjusting the rotating speed of the fan.
Further, the system comprises N fans, wherein N is an integer larger than or equal to 1, and the number of the fans is the same as and corresponds to the number of the fan covers, the number of the signal acquisition ends acquired by the expansion chip, the number of the fixed resistors, the number of the light emitting diodes and the number of the current limiting resistors one by one.
Further, the N LEDs are led to the front window through the light guide column and are arranged according to the sequence and/or the position of the fan.
In a second aspect, there is provided a fan installation detection method, the method comprising:
the expansion chip collects voltage information output by the fan detection switch and transmits the voltage information to the baseboard management controller;
the baseboard management controller receives the voltage information collected by the expansion chip, and judges and prompts whether the fan and the fan cover are normally installed according to the voltage information;
when the fan is abnormally installed, the fan is replaced or reassembled.
Further, the step of judging whether the fan and the fan cover are normally installed according to the voltage information includes:
when the first metal contact and the second metal contact on the fan are conducted, the fan detection switch outputs low voltage, and the fan cover are normally installed;
when the first metal contact and the second metal contact on the fan are not conducted, the fan detection switch outputs high voltage, and the fan cover are abnormally installed.
Further, the step of judging and prompting whether the fan and the fan cover are installed normally according to the voltage information includes:
judging whether the fan and the fan cover are normally installed or not according to the lighting state of the light-emitting diode and/or a prompt signal sent by the baseboard management controller;
if the light emitting diode is lightened and/or the baseboard management controller does not send out a fan abnormal signal, the fan and the fan cover are normally installed;
if the LED is not lightened and/or the baseboard management controller sends out a fan abnormal signal, the fan and the fan cover are abnormally installed.
In a third aspect, there is provided a computer device comprising:
one or more processors;
a memory;
the program stored in the memory, when executed by the one or more processors, causes the processors to perform the steps of the fan installation detection method of any of the second aspects above.
Compared with the prior art, the system provided by the technical scheme of the invention comprises a fan, a fan cover, a fan detection switch, a light emitting diode and a power supply, wherein: the fan detection switch comprises two metal contacts arranged on the fan and two metal contacts arranged on the fan cover, wherein the two metal contacts arranged on the fan cover are connected through metal wires, and when the fan is correctly installed with the fan cover, the two metal contacts on the fan are contacted with the two metal contacts on the fan cover so as to conduct the first metal contact and the second metal contact of the fan. According to the invention, the fan detection switch is formed by adding the metal contacts on the fan and the fan cover, so that the problem that whether the fan is reversely installed or not cannot be judged after the fan of the server is installed can be effectively solved, the reversely installed fan is reassembled in time after the problem is found, and the economic loss to factories caused by the influence of heat dissipation problem caused by the reversely installed fan on the delivery is prevented.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a fan rack commonly found in current servers;
FIG. 2 is a schematic view of a fan mounted in a fan housing;
FIG. 3 is a schematic diagram of a fan installation detection system according to a first embodiment of the present invention;
FIG. 4 is a schematic diagram of a fan detection switch according to an embodiment of the present invention;
FIG. 5 is a schematic diagram illustrating a side view of a fan and fan housing detection switch according to a first embodiment of the present invention;
FIG. 6 is a flowchart of a fan installation detection method according to a second embodiment of the present invention;
FIG. 7 is a diagram showing a fan mounting and detecting apparatus according to a third embodiment of the present invention;
the drawings are marked:
BMC, baseboard management controller; IO Expander, expansion chip; s0, a fan detection switch; r10, fixed resistance; r20, a current limiting resistor; LED0, light emitting diode; sn, nth fan detection switch; R1N, the Nth fixed resistor; R2N, N-th current limiting resistor; LEDn, nth light emitting diode; vcc1, a first power supply; vcc2, a second power supply.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It is noted that, unless the context clearly requires otherwise, the words "comprise," "comprising," and the like throughout the specification and the claims should be construed in an inclusive sense rather than an exclusive or exhaustive sense; that is, it is the meaning of "including but not limited to".
Furthermore, in the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
Example 1
The embodiment of the invention provides a fan installation detection system, as shown in fig. 3, which comprises a fan, a fan cover, a fan detection switch, a light emitting diode and a power supply, wherein:
the fan detection switch S0 comprises two metal contacts arranged on the fan and two metal contacts arranged on the fan cover;
two metal contacts on the fan are arranged at an air outlet of the fan, wherein the first metal contact is grounded, and the second metal contact is connected with the negative electrode of the light-emitting diode LED 0;
the two metal contacts arranged on the fan cover are connected through metal wires, and when the fan and the fan cover are correctly installed, the two metal contacts on the fan are contacted with the two metal contacts on the fan cover so as to conduct the first metal contact and the second metal contact of the fan;
the power supply comprises a first power supply Vcc1 and a second power supply Vcc2, wherein the first power supply Vcc1 is connected with the cathode of the light emitting diode LED0, and the second power supply Vcc2 is connected with the anode of the light emitting diode LED 0;
the on state of the light emitting diode LED0 is used to indicate whether the fan and the fan housing are mounted normally.
Specifically, as shown in fig. 4, two metal contacts are added at the air outlet on the fan body, where the first metal contact is grounded and the second metal contact is connected to the signal acquisition end of the IO Expander of the expansion chip on the motherboard through the fan connector. And when the fan cover and the fan are assembled, when the two metal contacts of the fan are contacted with the two metal contacts of the fan cover, the first metal contact and the second metal contact of the fan are connected in a conducting way.
Here, the power supply source includes the first power supply Vcc1 and the second power supply Vcc2, and may be the same power supply source or different power supply sources.
The light emitting diode LED0 is used for indicating whether the installation direction of the fan is consistent with that of the fan housing, namely whether the fan is installed normally. When the fan cover and the fan are consistent in installation direction, the first metal contact and the second metal contact of the fan are contacted together, the circuit is conducted, and after the power supply is electrified, current flows through the light emitting diode LED0, and the light emitting diode LED0 is lightened. Conversely, when the fan cover and the fan are not consistent in installation direction, the first metal contact and the second metal contact of the fan are not contacted together, the circuit is not conducted, and the light emitting diode LED0 is not lighted.
The signal acquisition end of the expansion chip IO Expander is connected to the second metal contact of the fan and is used for receiving voltage information output by the fan detection switch S0, and if the fan is installed in the same direction as the fan cover, namely, the fan is installed correctly, the two metal contacts of the fan body are conducted, and at the moment, the fan detection switch S0 outputs a low level; if the installation direction of the fan is inconsistent with that of the fan cover, namely the fan is installed in error, the two metal contacts of the fan body are not conducted, and at the moment, the fan detection switch S0 outputs a high level. The signal acquisition end of the expansion chip IO Expander acquires the voltage information output by the fan detection switch S0 and then transmits the voltage information of the fan detection switch S0 to the baseboard management controller BMC.
In a preferred embodiment, the system further comprises a baseboard management controller BMC and an expansion chip IO Expander,
the signal acquisition end of the expansion chip IO Expander is connected with the negative electrode of the light emitting diode LED0, and the signal output end of the expansion chip IO Expander is connected with the baseboard management controller BMC through an I2C bus and is used for acquiring voltage information output by the fan detection switch S0 and transmitting the voltage information to the baseboard management controller BMC;
the baseboard management controller BMC is used for reading the voltage information received by the expansion chip IO Expander, recording log information and alarming when the received voltage information is in a high level, and prompting replacement or reassembly of the fan.
Specifically, after the power is powered on, the baseboard management controller BMC receives, through the I2C bus, voltage information output by the fan detection switch S0 collected by the signal collection end of the expansion chip IO Expander, and monitors whether the fan detection switch S0 is correctly closed. If the fan detection switch S0 is monitored to be not closed correctly, that is, the first metal contact and the second metal contact of the fan are not conducted, that is, the installation direction of a certain fan is inconsistent with that of a fan cover, the baseboard management controller BMC records log information and alarms, and prompts replacement or reassembly of the fan.
In a preferred embodiment, the system further comprises a fixed resistor R10, a current limiting resistor R20,
the first end of the fixed resistor R10 is connected with the first power supply Vcc1, and the second end of the fixed resistor R is connected with the negative electrode of the light emitting diode LED 0;
the first end of the current limiting resistor R20 is connected to the second power supply Vcc2, and the second end is connected to the positive electrode of the light emitting diode LED 0.
Specifically, the first end of the fixed resistor R10 is connected to the first power supply Vcc1, the second end is connected to the negative electrode of the light emitting diode LED0, and a high level is provided at the negative electrode of the light emitting diode LED0, so as to prevent abnormal flicker of the light emitting diode LED0 when the circuit is unstable; the first end of the current limiting resistor R20 is connected with the second power supply Vcc2, the second end of the current limiting resistor R20 is connected with the positive electrode of the light emitting diode LED0, and the current limiting resistor R20 changes the current flowing through the light emitting diode LED0 by adjusting the size of the current limiting resistor R20 so as to change the light emitting brightness of the light emitting diode LED 0.
In a preferred embodiment, the number of fan pins is ≡8, wherein:
the first pin and the second pin are used for providing power for supplying power to the fan;
the third and fourth pipe feet are used for grounding;
the fifth pin and the sixth pin are used for measuring the rotating speed of the fan;
the seventh pin is used for detecting whether the fan is installed correctly or not;
the eighth pin is used for adjusting the rotating speed of the fan.
Specifically, the dual-rotor fan commonly used by the current server at least comprises 8 pins, wherein the first pin and the second pin are power pins and are used for supplying power to the fan; the third and fourth pipe feet are used for grounding; the fifth pin and the sixth pin are TACH0 (first tachometer) pin and TACH1 (second tachometer) pin, and are used for measuring the rotating speed of the fan and transmitting a rotating speed signal of the fan, and the baseboard management controller BMC monitors the rotating speed of the fan through the fifth pin and the sixth pin; the seventh pin is a PRSNT (hot plug presence detection) pin, and is used for transmitting a signal of whether the fan is in place or not and indicating whether the fan is installed or not; the eighth pin is a PWM (pulse width modulation) pin for adjusting the rotation speed of the fan, and the baseboard management controller BMC adjusts the rotation speed of the fan through the eighth pin.
According to the present embodiment, a DETECT pin is required to be added to DETECT whether the mounting direction of the fan and the fan housing is consistent, that is, to indicate whether the fan and the fan housing are mounted correctly, and there may be various implementations including adding fan connectors on a motherboard or adding the number of pins of the fan connectors, but the above way adds additional cost.
Here, as shown in table 1, the seventh pin PRSNT pin is replaced by the DETECT pin, which is used to DETECT whether the installation direction of the fan and the fan cover is consistent, that is, to indicate whether the fan and the fan cover are installed correctly, when the fan is plugged into the main board fan connector, if the LED0 indicator is not on or the baseboard management controller BMC alarms, it is indicated that the fan is installed reversely, and the installation direction of the fan and the fan cover is inconsistent, and reinstallation is required. Otherwise, if the LED0 indicator lights are on or the BMC does not give an alarm, the fan is correctly installed.
| Pin | Signal signal | Signal signal | Pin |
| 1 | 12V | 12V | 2 |
| 3 | GND | GND | 4 |
| 5 | TACH0 | TACH1 | 6 |
| 7 | DETECT | PWM | 8 |
TABLE 1
In a preferred embodiment, the system includes N fans, where N is an integer greater than or equal to 1, and the number of fans is the same as and in one-to-one correspondence with the number of fan covers, the number of collecting ends of the IO Expander collecting signals, the number of the fixed resistors R10, the number of the light emitting diodes LEDs 0, and the number of the current limiting resistors R20.
Specifically, the nth fan detection switch Sn includes two metal contacts provided on the nth fan and two metal contacts provided on the nth fan housing;
the two metal contacts on the Nth fan are arranged at the air outlet of the Nth fan, wherein the first metal contact of the Nth fan is grounded, and the second metal contact of the Nth fan is connected with the cathode of the Nth light emitting diode LEDn;
the two metal contacts arranged on the Nth fan cover are connected through metal wires, and when the Nth fan is correctly installed with the Nth fan cover, the two metal contacts on the Nth fan are contacted with the two metal contacts on the Nth fan cover so as to conduct the first metal contact and the second metal contact of the Nth fan;
the power supply comprises a first power supply Vcc1 and a second power supply Vcc2, wherein the first power supply Vcc1 is connected with the cathode of an Nth light emitting diode LEDn, and the second power supply Vcc2 is connected with the anode of the Nth light emitting diode LEDn;
the on state of the nth light emitting diode LEDn is used for indicating whether the nth fan and the nth fan cover are installed normally or not.
The N signal acquisition end of the expansion chip IO Expander is connected with the cathode of the N light emitting diode LEDn, and the N signal output end of the expansion chip IO Expander is connected with the baseboard management controller BMC through an I2C bus and is used for acquiring voltage information output by the N fan detection switch Sn and transmitting the voltage information to the baseboard management controller BMC;
the baseboard management controller BMC is used for reading the voltage information received by the expansion chip IO Expander, recording log information and alarming when the received voltage information is in a high level, and prompting replacement or reassembly of the fan.
The first end of the Nth fixed resistor R1N is connected with the first power supply Vcc1, and the second end is connected with the cathode of the Nth light emitting diode LEDn;
the first end of the nth current limiting resistor R2N is connected with the second power supply Vcc2, and the second end is connected with the positive electrode of the nth light emitting diode LEDn.
In a preferred embodiment, the N leds are led to the front window through a light guiding column and arranged in the order and/or position of the fans.
Specifically, in the design process, N leds may be led to the front window through the light guide column, and arranged according to the order and/or the position of the fan, so that a worker can more directly observe the lighting state of the leds of the front window to adjust the fan correspondingly.
The technical scheme provided by the invention is that the system comprises a fan, a fan cover, a fan detection switch, a light-emitting diode and a power supply, wherein: the fan detection switch comprises two metal contacts arranged on the fan and two metal contacts arranged on the fan cover; the two metal contacts arranged on the fan cover are connected through metal wires, and when the fan and the fan cover are correctly installed, the two metal contacts on the fan are contacted with the two metal contacts on the fan cover so as to conduct the first metal contact and the second metal contact of the fan. According to the invention, the fan detection switch is formed by adding the metal contacts on the fan and the fan cover, so that the problem that the fan is not foolproof in installation is solved, the problem that the installation and subsequent test rings can be found out in hundred percent, the problem that whether the fan is reversely installed or not cannot be judged after the fan of the server is installed can be effectively solved, the reversely installed fan is reassembled in time after the problem is found out, and the economic loss caused by the fact that the heat dissipation problem caused by the reversely installed fan influences shipment and production in factories is prevented.
Example two
The embodiment of the invention provides a fan installation detection method, as shown in fig. 6, which comprises the following steps:
step S1, an expansion chip collects voltage information output by a fan detection switch and transmits the voltage information to a substrate management controller; and the baseboard management controller receives the voltage information acquired by the expansion chip.
Specifically, through the mode that increases metal contact at the air outlet of fan, remind installer to pay attention to the direction of fan equipment to detection circuit has been designed.
After the whole machine is assembled, a subsequent testing link is carried out, and after the first power supply is electrified, the first metal contact and the second metal contact of the fan are communicated and the output voltage is different.
The signal acquisition end of the expansion chip is connected with the second metal contact of the fan, and is used for acquiring voltage information output by the fan detection switch and transmitting the voltage information to the baseboard management controller; and the baseboard management controller receives the voltage information acquired by the expansion chip.
And S2, judging and prompting whether the fan and the fan cover are installed normally or not according to the voltage information.
Specifically, the voltage information output by the fan detection switch is read, and whether the installation direction of the fan is consistent with the installation direction of the fan cover is judged according to the voltage information output by the fan detection switch.
The metal contacts are added on the air outlets of the fan and the fan cover, so that workers can be reminded of paying attention to the installation direction of the fan during installation, and whether the fan is installed correctly can be detected in a circuit mode.
Step S21, when the first metal contact and the second metal contact on the fan are conducted, the fan detection switch outputs low voltage, and the fan cover are normally installed;
when the first metal contact and the second metal contact on the fan are not conducted, the fan detection switch outputs high voltage, and the fan cover are abnormally installed.
Specifically, when the first metal contact and the second metal contact of the fan are conducted, the fan detection switch outputs low voltage, and the fan cover are installed in the same direction, namely, the fan and the fan cover are installed normally;
when the first metal contact and the second metal contact of the fan are not conducted, the fan detection switch outputs high voltage, the installation direction of the fan and the fan cover is inconsistent, namely, the fan and the fan cover are abnormally installed, log information is recorded, and an alarm is given to prompt the replacement or reassembling of the fan.
If the installation direction of the fan is consistent with that of the fan cover, the fan detection switch is closed, two metal contacts of the fan are conducted, the fan detection switch outputs a low level, the signal acquisition end of the expansion chip acquires a low level signal output by the fan detection switch, the light emitting diode is lightened at the moment, and the baseboard management controller reads the low level signal acquired by the expansion chip and indicates that the fan is correctly installed; otherwise, if the installation direction of the fan and the fan cover is inconsistent, the fan detection switch is not closed, the two metal contacts of the fan body are not conducted, the fan detection switch outputs a high level, the expansion chip collects a high level signal output by the fan detection switch, the LED indicator is not lightened because no current flows through the LED indicator, at the moment, the baseboard management controller reads the high level signal collected by the expansion chip and represents the current fan installation error, and the baseboard management controller records a log and gives an alarm.
Step S22, judging whether the fan and the fan cover are normally installed or not according to the lighting state of the light-emitting diode and/or the prompt signal sent by the baseboard management controller;
if the light emitting diode is lightened and/or the baseboard management controller does not send out a fan abnormal signal, the fan and the fan cover are normally installed;
if the LED is not lightened and/or the baseboard management controller sends out a fan abnormal signal, the fan and the fan cover are abnormally installed.
Specifically, according to the lighting state of the light emitting diode, judging whether the installation direction of the fan and the fan cover is consistent;
if the first metal contact and the second metal contact of the fan are conducted, the light emitting diode is lightened, the installation direction of the fan and the fan cover is consistent, and adjustment is not needed;
if the first metal contact and the second metal contact of the fan are not conducted, the LED is not lightened, the installation direction of the fan and the fan cover is inconsistent, and the fan is replaced or reassembled.
It can be understood that after the assembly of a server is completed, a complete machine test link is entered according to the flow, and after the first power supply is powered on, a tester can judge whether the installation direction of the fan is consistent with the installation direction of the fan cover according to the lighting state of the light emitting diode; or judging whether the installation direction of the fan is consistent with that of the fan cover according to whether the baseboard management controller sends out a prompt signal or not; if the LED is not lightened and is in an off state, the log recorded by the baseboard management controller is consulted, if the prompt of the fan installation error occurs in the recorded log or the baseboard management controller sends a prompt signal, the fan and the fan cover are not consistent in installation direction, the test is stopped at the moment, the server is shut down, the fan is replaced or reassembled, and the test work is performed after the completion of the test.
And S3, when the installation of the fan is abnormal, the fan is replaced or reassembled.
Specifically, when the fan is not consistent with the fan housing mounting direction, that is, the fan is abnormally mounted, the fan is replaced or reassembled.
If the first metal contact and the second metal contact of the fan are conducted, the light emitting diode is lighted, that is, the installation direction of the fan and the fan cover is consistent, and the fan does not need to be replaced or reassembled.
Compared with the prior art, the system provided by the technical scheme of the invention comprises a fan, a fan cover, a fan detection switch, a light emitting diode and a power supply, wherein: the fan detection switch comprises two metal contacts arranged on the fan and two metal contacts arranged on the fan cover; the two metal contacts arranged on the fan cover are connected through metal wires, and when the fan and the fan cover are correctly installed, the two metal contacts on the fan are contacted with the two metal contacts on the fan cover so as to conduct the first metal contact and the second metal contact of the fan. According to the invention, the fan detection switch is formed by adding the metal contacts on the fan and the fan cover, and the fan detection switch is used as the fool-proof mark, so that the problem that the fan cannot be fool-proof and the problem that whether the fan is reversely installed cannot be judged after the fan of the server is installed can be effectively solved, the reversely installed fan is reassembled in time after the problem is found, and the economic loss to factory production due to the heat dissipation problem caused by the reversely installed fan is prevented.
Example III
The embodiment of the invention also provides a fan installation detection device, as shown in fig. 7, which comprises:
the receiving module is used for acquiring voltage information output by the fan detection switch by the expansion chip and transmitting the voltage information to the substrate management controller; the receiving module is used for receiving the voltage information acquired by the expansion chip;
the judging module is used for judging and prompting whether the fan and the fan cover are normally installed according to the voltage information;
and the adjusting module is used for replacing or reassembling the fan when the fan is abnormally installed.
Example IV
The embodiment of the invention also provides a computer device, which comprises:
one or more processors;
a memory;
a program stored in memory that, when executed by one or more processors, causes the processors to perform the steps of a fan installation detection method of:
the expansion chip collects voltage information output by the fan detection switch and transmits the voltage information to the baseboard management controller;
the baseboard management controller receives the voltage information collected by the expansion chip, and judges and prompts whether the fan and the fan cover are normally installed according to the voltage information;
when the fan is abnormally installed, the fan is replaced or reassembled.
Further, the step of judging whether the fan and the fan cover are normally installed according to the voltage information includes:
when the first metal contact and the second metal contact on the fan are conducted, the fan detection switch outputs low voltage, and the fan cover are normally installed;
when the first metal contact and the second metal contact on the fan are not conducted, the fan detection switch outputs high voltage, and the fan cover are abnormally installed.
Further, the step of judging and prompting whether the fan and the fan cover are installed normally according to the voltage information includes:
judging whether the fan and the fan cover are normally installed or not according to the lighting state of the light-emitting diode and/or a prompt signal sent by the baseboard management controller;
if the light emitting diode is lightened and/or the baseboard management controller does not send out a fan abnormal signal, the fan and the fan cover are normally installed;
if the LED is not lightened and/or the baseboard management controller sends out a fan abnormal signal, the fan and the fan cover are abnormally installed.
Those skilled in the art will appreciate that implementing all or part of the above-described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed may comprise the steps of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in embodiments provided herein may include non-volatile and/or volatile memory. The nonvolatile memory can include Read Only Memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), memory bus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), among others.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (10)
1. A fan installation detection system, wherein the system comprises a fan, a fan cover, a fan detection switch, a light emitting diode, and a power supply, wherein:
the fan detection switch comprises two metal contacts arranged on the fan and two metal contacts arranged on the fan cover;
two metal contacts on the fan are arranged at an air outlet of the fan, wherein the first metal contact is grounded, and the second metal contact is connected with the cathode of the light-emitting diode;
the two metal contacts arranged on the fan cover are connected through metal wires, and when the fan and the fan cover are correctly installed, the two metal contacts on the fan are contacted with the two metal contacts on the fan cover so as to conduct the first metal contact and the second metal contact of the fan;
the power supply comprises a first power supply and a second power supply, wherein the first power supply is connected with the cathode of the light-emitting diode, and the second power supply is connected with the anode of the light-emitting diode;
the lighting state of the light emitting diode is used for indicating whether the fan and the fan cover are installed normally or not.
2. The fan mounting inspection system of claim 1, further comprising a baseboard management controller and an expansion chip,
the signal acquisition end of the expansion chip is connected with the cathode of the light emitting diode, and the signal output end of the expansion chip is connected with the baseboard management controller through an I2C bus and is used for acquiring voltage information output by the fan detection switch and transmitting the voltage information to the baseboard management controller;
the baseboard management controller is used for reading the voltage information received by the expansion chip, recording log information and alarming when the received voltage information is at a high level, and prompting replacement or reassembly of the fan.
3. The fan mounting detection system of claim 2, further comprising a fixed resistor, a current limiting resistor,
the first end of the fixed resistor is connected with the first power supply, and the second end of the fixed resistor is connected with the negative electrode of the light-emitting diode;
the first end of the current limiting resistor is connected with the second power supply, and the second end of the current limiting resistor is connected with the positive electrode of the light emitting diode.
4. The fan mounting detection system of claim 3, wherein the number of fan pins is ≡8, wherein:
the first pin and the second pin are used for providing power for supplying power to the fan;
the third and fourth pipe feet are used for grounding;
the fifth pin and the sixth pin are used for measuring the rotating speed of the fan;
the seventh pin is used for detecting whether the fan is installed correctly or not;
the eighth pin is used for adjusting the rotating speed of the fan.
5. The fan mounting and inspection system of claim 4, wherein the system comprises N fans, N is an integer greater than or equal to 1, and the number of fans is the same as and corresponds to the number of fan covers, the number of signal acquisition terminals of the extended chip, the number of fixed resistors, the number of light emitting diodes, and the number of current limiting resistors.
6. The fan mounting inspection system of claim 5 wherein the N leds are directed through the light guide posts to the front window and arranged in the order and/or position of the fans.
7. A fan installation detection method applied to the fan installation detection system according to any one of claims 2 to 6, the method comprising:
the expansion chip collects voltage information output by the fan detection switch and transmits the voltage information to the baseboard management controller;
the baseboard management controller receives the voltage information collected by the expansion chip, and judges and prompts whether the fan and the fan cover are normally installed according to the voltage information;
when the fan is abnormally installed, the fan is replaced or reassembled.
8. The fan mounting detection method as claimed in claim 7, wherein said determining whether the fan and the fan housing are mounted normally based on the voltage information includes:
when the first metal contact and the second metal contact on the fan are conducted, the fan detection switch outputs low voltage, and the fan cover are normally installed;
when the first metal contact and the second metal contact on the fan are not conducted, the fan detection switch outputs high voltage, and the fan cover are abnormally installed.
9. The fan mounting detection method as claimed in claim 7, wherein said determining and prompting whether the fan is mounted with the fan housing based on the voltage information includes:
judging whether the fan and the fan cover are normally installed or not according to the lighting state of the light-emitting diode and/or a prompt signal sent by the baseboard management controller;
if the light emitting diode is lightened and/or the baseboard management controller does not send out a fan abnormal signal, the fan and the fan cover are normally installed;
if the LED is not lightened and/or the baseboard management controller sends out a fan abnormal signal, the fan and the fan cover are abnormally installed.
10. A computer device, the computer device comprising:
one or more processors;
a memory;
a program stored in the memory, which when executed by the one or more processors causes the processors to perform the steps of the fan installation detection method as claimed in any one of claims 7 to 9.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206959243U (en) * | 2017-07-18 | 2018-02-02 | 浙江华严建设有限公司 | A kind of Intelligent ventilating apparatus for building constructions |
| CN109763990A (en) * | 2019-01-15 | 2019-05-17 | 郑州云海信息技术有限公司 | A kind of control method and device of the fan of server |
| CN113417882A (en) * | 2021-06-29 | 2021-09-21 | 苏州浪潮智能科技有限公司 | Fan in-place detection device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103186452A (en) * | 2011-12-27 | 2013-07-03 | 鸿富锦精密工业（深圳）有限公司 | Server system |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206959243U (en) * | 2017-07-18 | 2018-02-02 | 浙江华严建设有限公司 | A kind of Intelligent ventilating apparatus for building constructions |
| CN109763990A (en) * | 2019-01-15 | 2019-05-17 | 郑州云海信息技术有限公司 | A kind of control method and device of the fan of server |
| CN113417882A (en) * | 2021-06-29 | 2021-09-21 | 苏州浪潮智能科技有限公司 | Fan in-place detection device and method |
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