CN113190398B - Method, system and medium for detecting state of counter flow valve - Google Patents

Abstract

The invention discloses a method for detecting the state of a counter flow valve, which comprises the following steps: the method comprises the following steps of (1) hardware topology connection, wherein an electromagnetic reset device is additionally arranged on a reverse flow valve of a fan, and a BMC is respectively connected with the electromagnetic reset device, the fan and the reverse flow valve; the BMC detects a rotating speed signal of the fan and controls the electromagnetic reset device; when the fan is powered by the server and the rotating speed signal is detected by the BMC, detecting the state of the counter flow valve, judging whether a first fault occurs according to a detection result, and reporting the first fault to the server according to a judgment result; when the power supply in the server is powered off, detecting the state of the reflux valve, judging whether a second fault is generated according to the detection result, and reporting the second fault to the server according to the judgment result; the invention detects the state of the reflux valve, thereby judging whether a fault is generated according to the state of the reflux valve, further judging the generation reason of the fault, and carrying out maintenance action as early as possible, so that the server operates normally, and the stability of the server is improved.

Description

A method, system and medium for detecting the state of a countercurrent valve

technical field

The invention relates to the field of heat dissipation control, in particular to a method, system and medium for detecting the state of a reverse flow valve.

Background technique

At present, with the continuous advancement of technology, the demand for servers is becoming stronger and stronger. Since the server is responsible for data storage and data calculation, it needs to be powered on 24 hours a day to process data, and for the current AI (Artificial Intelligence) artificial intelligence and big data computing In terms of analysis, very large power consumption is often required, and the operation of the corresponding fan in the server also needs to be turned on for a long time, and long-term uninterrupted heat dissipation.

At present, there will be a reverse flow valve design in the server. When a single fan stops running or a problem occurs, the air flow can be concentrated in the middle area for exhaust air, which will have a better cooling effect; however, there is often no additional detection of reverse flow. The valve device, when the fan has other conditions or a foreign object is stuck, it cannot detect the status of the reverse flow valve, so as to make targeted actions, so that the air flow for heat dissipation is guided from the fan port to dissipate heat in the server. It has a large impact, and in severe cases, it may cause the server to go down due to excessive temperature.

SUMMARY OF THE INVENTION

The present invention mainly solves the problem that the state of the reverse flow valve cannot be detected when the fan is in a condition or a foreign object is stuck, thereby affecting the server.

In order to solve the above technical problems, a technical solution adopted in the present invention is to provide a method for detecting the state of a reverse flow valve, which is applied to a server, and the method includes the following steps:

Hardware topology connection, an electromagnetic reset device is added on the reverse flow valve of the fan, and the BMC is respectively connected to the electromagnetic reset device, the fan and the reverse flow valve;

BMC detects the rotational speed signal of the fan, and controls the electromagnetic reset device according to the rotational speed signal;

When the server supplies power to the fan and the BMC detects the rotational speed signal, it detects the state of the reverse flow valve, determines whether a first fault occurs according to the detection result, and reports the first fault to the server;

When the power supply in the server is powered off, the state of the reverse flow valve is detected, whether a second fault occurs according to the detection result, and the second fault is reported to the server according to the judgment result.

Preferably, the step of connecting the BMC to the electromagnetic reset device, the fan and the reverse flow valve, respectively, further comprises: connecting the GPIO pins in the BMC to one end of the reverse flow valve and a high potential, respectively. , and ground the other end of the reverse flow valve.

Preferably, the step of detecting the state of the reverse flow valve further comprises:

Detecting the state of the GPIO pin, if it is detected that the state of the GPIO pin is the first level, the countercurrent valve is in a closed state;

If it is detected that the state of the GPIO pin is the second level, the reverse flow valve is in an open state.

Preferably, the step of judging whether the first fault occurs according to the detection result, and reporting the first fault to the server according to the judgment result further includes:

If the reverse flow valve is in a closed state, the fan or the reverse flow valve fails, and the BMC records the failure information of the fan or the reverse flow valve and sends it to the server;

If the reverse flow valve is in an open state, the reverse flow valve is not faulty.

Preferably, the step of judging whether the second fault occurs according to the detection result further includes:

The BMC works through the backup power supply in the server, and detects the state of the reverse flow valve;

When the reverse flow valve is in the open state, the reverse flow valve is faulty, and the BMC records the fault information of the reverse flow valve and sends it to the server;

When the reverse flow valve is in a closed state, the reverse flow valve does not malfunction.

Preferably, the step of controlling the electromagnetic reset device according to the rotational speed signal further includes:

When the fan is running, the fan sends out a rotational speed signal, and when the BMC does not detect the rotational speed signal, the BMC sends a control signal to the electromagnetic reset device to control the electromagnetic reset device to reset, so that all The reverse flow valve is closed.

Preferably, when the server supplies power to the fan and the BMC does not detect the rotational speed signal, the fan is faulty, and the BMC records the information that the fan is faulty and sends it to the server.

The present invention also provides a system for detecting the state of a reverse flow valve, comprising: a BMC, a fan and a high potential module;

The fan is provided with a reverse flow valve, and an electromagnetic reset device is provided on the reverse flow valve, and the electromagnetic reset device is used to control the opening and closing of the reverse flow valve; the BMC is connected to the fan and is used to detect all the speed signal of the fan;

the BMC is connected to the electromagnetic reset device for sending a control signal to the electromagnetic reset device;

One end of the reverse flow valve is connected to the GPIO pin in the BMC through a first resistor, and the other end of the reverse flow valve is grounded;

The GPIO pin is connected to the high potential module through a second resistor.

As a further improvement of the system for detecting the state of the reverse flow valve according to the present invention, the BMC is provided with a detection control module, a judgment module and a fault reporting module;

The detection control module is used to detect the state of the GPIO pin, and judge the state of the reverse flow valve according to the state of the GPIO pin;

The detection control module is used to detect the rotational speed signal, and control the electromagnetic reset device according to the rotational speed signal;

The judging module is configured to judge whether a fault occurs according to the state of the reverse flow valve when the server supplies power to the fan and the BMC detects the rotational speed signal or when the power supply in the server is turned off;

The fault reporting module is configured to report the generated fault to the server.

The present invention also provides a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method for detecting the state of a reverse flow valve are implemented.

The beneficial effects of the present invention are:

1. The method for detecting the state of the reverse flow valve according to the present invention can realize the control of the electromagnetic reset device through the fan speed signal, so that the reverse flow valve is closed, and the wind flow of other fans is prevented from flowing out of the fan hole of the fan, which enhances the performance of the fan. The cooling function of the server, and according to different situations, the status of the reverse flow valve is detected, so as to determine whether there is a fault according to the status of the reverse flow valve, and then determine the cause of the failure, and carry out maintenance actions as soon as possible to maintain normal operation faster and improve the server. system stability.

2. The system for detecting the state of the reverse flow valve according to the present invention can realize the detection of the state of the reverse flow valve through the GPIO pin of the BMC and the high-potential module, and can also be adjusted according to different situations, which improves the system's feasibility. In addition, when a fault occurs, the fault reporting module provides timely feedback, so that the fault in the server can be handled as soon as possible, which improves the work efficiency of the server.

3. The computer-readable storage medium described in the present invention can realize the state of the corresponding reverse flow valve by judging the high and low levels of the pins, and then automatically control the reverse flow through the speed signal of the fan. The valve can improve the cooling efficiency of the fan when the fan fails.

Description of drawings

In order to illustrate the specific embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the specific embodiments or the prior art. Obviously, the accompanying drawings in the following description The drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic flowchart of a method for detecting the state of a reverse flow valve according to Embodiment 1 of the present invention;

2 is a schematic diagram of a system architecture for detecting the state of a reverse flow valve according to Embodiment 2 of the present invention;

3 is a schematic diagram of the connection structure between the electromagnetic reset device and the BMC in the reverse flow valve in a system for detecting the state of the reverse flow valve according to Embodiment 2 of the present invention;

FIG. 4 is a schematic structural diagram of a BMC in a system for detecting a state of a reverse flow valve according to Embodiment 2 of the present invention.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "first" and "second" are only used for description purposes, and cannot be understood as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "electromagnetic reset device", "speed signal", "first fault", "second fault", "high potential", "closed state", "open state", "backup power supply", "first resistance", "second resistance", "detection control module", "judgment module" and "fault reporting module" should be understood in a broad sense. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

It should be noted that in the description of the present invention

BMC (Baseboard Management Controller) is a baseboard management controller, which can upgrade the firmware of the machine, view the machine equipment, and other operations when the machine is not turned on.

GPIO (General-purpose input/output) is the abbreviation for general-purpose input and output.

Standby voltage: First proposed in ATX, after the system is shut down, a +5V standby voltage is reserved for power supply and system wake-up service. The previous PSII and AT power supplies used mechanical switches to power on and off. Starting from ATX (including SFX), mechanical switches are no longer used to power on and off, but a power on and off signal is given to the motherboard through the keyboard or button, and the motherboard notifies the power supply. closed or open.

The FANTACH signal is the fan speed signal.

Ohm is ohm.

The first level is a low level, and the second level is a high level.

Example 1

An embodiment of the present invention provides a method for detecting the state of a reverse flow valve, please refer to FIG. 1 , including the following steps:

S100, perform hardware topology connection, add an electromagnetic reset device to the reverse flow valve of the server, connect the BMC to the electromagnetic reset device and the fan in the server respectively, connect the GPIO pin in the BMC to the reverse flow valve side and high potential connection, connect the reverse flow valve The other side is grounded;

It should be noted that the high potential is equivalent to a power supply here, and it will continue to generate a high level when the server is powered off, which is not controlled by the power supply in the server.

S200, when the fan in the server runs normally, the fan outputs a FANTACH signal; when the BMC does not detect the FANTACH signal, the fan in the server fails abnormally or fails to operate or stops working normally, and the BMC sends a control signal to the electromagnetic reset device to make the electromagnetic The reset device resets, and the electromagnetic reset device resets to automatically close the reverse flow valve to prevent the airflow of other fans from flowing out of the fan hole of the fan;

When the BMC detects the FANTACH signal; the BMC does not send a control signal to stop the electromagnetic reset device from working, and the reverse flow valve is in an open state at this time;

S300, when the server normally supplies power to the fan and the BMC detects the FANTACH, the state of the reverse flow valve is detected, and according to the detection result, it is judged whether the first fault occurs, and if the first fault occurs, the first fault is reported to the server;

The specific steps are:

Monitor the level state of the GPIO pin of the BMC. If the monitor GPIO pin is low, the reverse flow valve is closed at this time, and the copper latches on the fan will be connected to each other;

At this time, there is an abnormal fan failure or a failure of the reverse flow valve; the failure at this time is recorded through the BMC and reported to the server;

If the pin that detects the GPIO is at a high level, the reverse flow valve is in an open state, which is a normal state at this time, and the BMC detects the FANTACH signal; at this time, the reverse flow valve is not faulty;

When the server supplies power to the fan normally and the BMC does not detect FANTACH, the fan is faulty; report the fan fault information to the server;

S400, when all the DC power supplies in the server are turned off, detect the state of the reverse flow valve, and according to the detected state of the reverse flow valve, determine whether a second fault occurs according to the detection result, and if a fault occurs, report the second fault to the server;

The specific steps are:

It should be noted that there are two situations in which the DC power supply is turned off. The first situation is when the user needs to turn off all the main DC power supplies according to their needs. At this time, because the server does not perform any processing business, the fan does not need to run. But the stand by power supply in the server still works;

Stand by power supply is a backup power supply.

The second situation is that before the server is powered on with AC power, when the power module in the server has not converted the AC power supply to DC power supply, only the stand by power supply is turned on;

And BMC uses a stand by power supply, so it can detect whether the closed state of the reverse flow valve is normal when the DC power supply is turned off;

And the fan is not running and the FANTACH signal is not sent at this time, then the BMC sends a control signal to make the reverse flow valve closed, and monitor it through the GPIO pin of the BMC. When the GPIO pin is detected to be at a high level, the reverse flow The valve is in the open state, so there is foreign matter stuck at the position of the reverse flow valve, or the reverse flow valve is faulty, then record the BMC fault and send the fault to the server;

When it is detected that the pin of the GPIO is at a low level, the reverse flow valve is normally closed and there is no fault.

It should be noted that if the ground position and the high potential are exchanged, the state of the reverse flow valve can also be detected, but if the positions are exchanged, the high level of the GPIO pin corresponds to the closed state of the reverse flow valve, but the reverse flow valve is in the closed state. It will be charged, which does not conform to the physical logic on the conventional server, so the GPIO pin is high corresponding to the open state of the reverse flow valve, and the GPIO pin is low corresponding to the closed state of the reverse flow valve.

Example 2

An embodiment of the present invention further provides a system for detecting the state of a reverse flow valve, please refer to FIG. 2 and FIG. 3 , including: a BMC, a fan, and a high-potential module;

There is a reverse flow valve on the fan, and an electromagnetic reset device is arranged on the reverse flow valve to control the opening and closing of the reverse flow valve; the BMC is respectively connected with the fan and the electromagnetic reset device for detecting the FANTACH signal and sending control signals;

BMC is used to detect the FANTACH signal of the fan and send the control signal to the electromagnetic reset device;

One end of the reverse flow valve is connected to the GPIO pin in the BMC through the first resistor, and the other end of the reverse flow valve is grounded;

The GPIO pin in the BMC is connected to the high potential module through the second resistor;

Please refer to Figure 4, the BMC is provided with a detection control module, a judgment module and a fault reporting module;

The detection control module is used to detect the state of the GPIO pin, and judge the state of the reverse flow valve according to the state of the GPIO pin;

for detecting the rotational speed signal, and controlling the electromagnetic reset device according to the rotational speed signal;

The judgment module is configured to judge whether a fault occurs according to the state of the reverse flow valve when the server supplies power to the fan and the BMC detects the rotational speed signal or when the power supply in the server is turned off;

The fault reporting module is used to report the generated fault to the server.

It should be noted that the GPIO of BMC will be connected in series with a first resistor and a second resistor. The second resistor is a pull-up resistor. Generally, the resistance value is between 1Kohm and 10Kohm. The resistance value is adjusted according to the voltage of different high-potential modules. And the voltage of the high-potential module can be changed at any time according to different needs. The first resistor in series is to avoid the direct grounding of the GPIO pin of the BMC and reduce the risk of damage to the pin. Generally, the resistance value is between 0ohm and 1Kohm. Adjust anytime.

Example 3

The present invention also provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program that executes the above method for detecting a state of a reverse flow valve when executed by a processor, and implements the method for detecting the state of a reverse flow valve. steps of the method.

Finally, it should be noted that those of ordinary skill in the art can understand that all or part of the process in the method of the above embodiment can be implemented by instructing the relevant hardware through a computer program, and the program of the method of monitoring software can be stored in a computer readable In the storage medium, when the program is executed, it may include the processes of the foregoing method embodiments. Wherein, the storage medium of the program may be a magnetic disk, an optical disk, a read only memory (ROM) or a random access memory (RAM) or the like. The above computer program embodiments can achieve the same or similar effects as any of the foregoing method embodiments corresponding thereto.

In addition, the methods disclosed according to the embodiments of the present invention may also be implemented as a computer program executed by a processor, and the computer program may be stored in a computer-readable storage medium. When the computer program is executed by the processor, the above-mentioned functions defined in the methods disclosed in the embodiments of the present invention are executed.

In addition, the above-mentioned method steps and system units can also be implemented by using a controller and a computer-readable storage medium for storing a computer program that enables the controller to implement the functions of the above-mentioned steps or units.

In addition, it should be understood that computer-readable storage media (eg, memory) herein can be volatile memory or non-volatile memory, or can include both volatile and non-volatile memory.

Those skilled in the art will also appreciate that the various exemplary logical blocks, modules, circuits, and algorithm steps described in connection with the disclosure herein may be implemented as electronic hardware, computer software, or combinations of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described generally in terms of their functionality. Whether such functionality is implemented as software or hardware depends on the specific application and design constraints imposed on the overall system. Those skilled in the art may implement the functions in various ways for each specific application, but such implementation decisions should not be interpreted as causing a departure from the scope of the disclosed embodiments of the present invention.

The various exemplary logical blocks, modules, and circuits described in connection with the disclosure herein can be implemented or executed using the following components designed to perform the functions herein: general purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASIC), Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination of these components.

The above-mentioned embodiments of the present invention disclose the serial numbers of the embodiments only for description, and do not represent the advantages and disadvantages of the embodiments.

The above descriptions are only the embodiments of the present invention, and are not intended to limit the scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied to other related technologies Fields are similarly included in the scope of patent protection of the present invention.

Claims (5)

1. A method for detecting the state of a reverse flow valve, applied to a server, wherein the method comprises the following steps: The hardware topology is connected, an electromagnetic reset device is added on the countercurrent valve of the fan, the BMC is respectively connected with the electromagnetic reset device and the fan, and the GPIO pin in the BMC is respectively connected with one end of the countercurrent valve and a high potential, grounding the other end of the reverse flow valve; BMC detects the rotational speed signal of the fan, and controls the electromagnetic reset device according to the rotational speed signal; When the server supplies power to the fan and the BMC detects the rotational speed signal, it detects the state of the reverse flow valve, determines whether a first fault occurs according to the detection result, and reports the first fault to the server; When the power supply in the server is powered off, detecting the state of the reverse flow valve, judging whether a second fault occurs according to the detection result, and reporting the second fault to the server according to the judgment result; The step of detecting the state of the reverse flow valve includes: detecting the state of the GPIO pin, if it is detected that the state of the GPIO pin is the first level, the reverse flow valve is in a closed state; When the state of the GPIO pin is the second level, the reverse flow valve is in an open state; the first level is a low level, and the second level is a high level; The step of judging whether the first fault occurs according to the detection result, and reporting the first fault to the server according to the judgment result further includes: if the reverse flow valve is in a closed state, the fan or the reverse flow valve is faulty, Record the failure information of the fan or the reverse flow valve through the BMC and send it to the server; if the reverse flow valve is in an open state, the reverse flow valve is not faulty; The step of judging whether the second fault occurs according to the detection result further includes: the BMC operates through the backup power supply in the server to detect the state of the reverse flow valve; when the reverse flow valve is in an open state, the reverse flow valve In case of failure, the BMC records the failure information of the reverse flow valve and sends it to the server; when the reverse flow valve is in a closed state, the failure of the reverse flow valve does not occur. 2 . The method for detecting the state of a reverse flow valve according to claim 1 , wherein the step of controlling the electromagnetic reset device according to the rotational speed signal further comprises: 2 . When the fan is running, the fan sends out a rotational speed signal, and when the BMC does not detect the rotational speed signal, the BMC sends a control signal to the electromagnetic reset device to control the electromagnetic reset device to reset, so that all The reverse flow valve is closed. 3 . The method for detecting the state of a reverse flow valve according to claim 2 , wherein when the server supplies power to the fan and the BMC does not detect the rotational speed signal, the fan is faulty, 3 . The BMC records the failure information of the fan and sends it to the server. 4. A system for detecting the state of a reverse flow valve, comprising: a BMC, a fan and a high potential module; The fan is provided with a reverse flow valve, and an electromagnetic reset device is provided on the reverse flow valve, and the electromagnetic reset device is used to control the opening and closing of the reverse flow valve; the BMC is connected to the fan and is used to detect all the speed signal of the fan; the BMC is connected to the electromagnetic reset device for sending a control signal to the electromagnetic reset device; One end of the reverse flow valve is connected to the GPIO pin in the BMC through a first resistor, and the other end of the reverse flow valve is grounded; The GPIO pin is connected to the high-potential module through a second resistor; The BMC is provided with a detection control module, a judgment module and a fault reporting module; The detection control module is used to detect the state of the GPIO pin, and judge the state of the reverse flow valve according to the state of the GPIO pin; if it is detected that the state of the GPIO pin is the first level, the The reverse flow valve is in a closed state; if it is detected that the state of the GPIO pin is the second level, the reverse flow valve is in an open state; the first level is a low level, and the second level is high level; The detection control module is used to detect the rotational speed signal, and control the electromagnetic reset device according to the rotational speed signal; The judging module is configured to judge whether a fault occurs according to the state of the reverse flow valve when the server supplies power to the fan and the BMC detects the rotational speed signal or when the power supply in the server is turned off; The fault reporting module is configured to report the generated fault to the server; When the server supplies power to the fan and the BMC detects the rotational speed signal, it detects the state of the reverse flow valve; if the reverse flow valve is in the closed state, the fan or the reverse flow valve fails, and the BMC records it. Send the information about the failure of the fan or the reverse flow valve to the server; if the reverse flow valve is in an open state, the reverse flow valve has not failed; When the power supply in the server is turned off, the BMC works through the backup power supply in the server to detect the state of the reverse flow valve; when the reverse flow valve is in the open state, the reverse flow valve is faulty, and the BMC records the reverse flow valve. The failure information is sent to the server; when the reverse flow valve is in a closed state, the reverse flow valve does not fail. 5. A computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, wherein, when the computer program is executed by a processor, the one described in any one of claims 1-3 is implemented The steps of a method of detecting the condition of a reverse flow valve.

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