CN111366316A - System and method for detecting liquid in server and server - Google Patents
System and method for detecting liquid in server and server Download PDFInfo
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- 239000007788 liquid Substances 0.000 title claims abstract description 184
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000001514 detection method Methods 0.000 claims abstract description 78
- 238000012545 processing Methods 0.000 claims abstract description 62
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000000110 cooling liquid Substances 0.000 claims abstract description 11
- 230000001960 triggered effect Effects 0.000 claims abstract description 7
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- 238000001816 cooling Methods 0.000 description 9
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- G—PHYSICS
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/40—Investigating fluid-tightness of structures by using electric means, e.g. by observing electric discharges
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/20—Cooling means
Abstract
The invention provides a system, a method and a server for detecting liquid in a server, wherein the liquid in the server is detected by a liquid detection component; when the cooling liquid circulation device leaks liquid or water enters the server, the liquid detection assembly is triggered to sense a liquid sensing signal; the data processing module transmits the liquid sensing signal to the BMC module to send out an alarm prompt. Therefore, after water or refrigerating fluid is leaked inside the server, timely detection can be achieved, and the problem that the mainboard is burnt due to the fact that warning cannot be timely sent out or the mainboard burning problem caused by the fact that alarm cannot be given after the system BMC is invalid is avoided. And the water inlet inside the server can be detected, if the water inlet or the water accumulation inside the server exists, the liquid detection assembly can detect the water inlet or the water accumulation, the alarm is given, and maintenance personnel are informed to shut down the system. And when the BMC module fails, the output of the PSU can be forcibly closed through the data processing module, so that the safety of the server is ensured.
Description
Technical Field
The invention relates to the technical field of liquid cooling server detection, in particular to a system and a method for detecting liquid in a server and the server.
Background
Since the birth of servers, heat dissipation has always been a technical bottleneck difficult to break through, and along with the development of the server, the importance of solving the heat dissipation problem is increasingly highlighted. Common computer lab refrigeration mainly relies on air cooling to realize the purpose for the server cooling, however, along with the rapid development of IT technique, the integrated level of chip and ITs computational rate constantly rise, and equipment energy consumption also constantly increases, and the heat dissipation problem of core components such as CPU is awaited the solution urgently. The development trend of servers is followed, the refrigeration technology of a data center is gradually promoted from room-level refrigeration to row-level refrigeration, rack-level refrigeration and server-level refrigeration, the refrigeration is close to a heat source, the near refrigeration becomes the technical development trend, and as the technology development of chip cold plates and cooling liquid enhanced heat exchange is perfect, the chip liquid cooling becomes a new hot spot in the industry. The liquid cooling liquid leakage detection part is very important, if leakage occurs, the safe operation of the server is affected, and the mainboard is burnt down seriously.
Disclosure of Invention
In order to overcome the above-mentioned deficiencies in the prior art, the present invention provides a system for detecting liquid inside a server, comprising: the system comprises a BMC module, a data processing module and a liquid detection assembly;
the liquid detection assembly detects liquid in the server, and when liquid appears in the server, a liquid induction signal is triggered and transmitted to the data processing module;
the data processing module transmits the liquid sensing signal to the BMC module to give an alarm.
It should be further noted that the liquid detection assembly is configured with a liquid detection module and a level output end;
after the liquid detection module detects and contacts liquid in the server, a loop of the liquid detection module is conducted, and the fact that liquid exists in the server is judged;
the level output end outputs liquid level information and sends the liquid level information to the data processing module.
Further, it should be noted that the method further includes: an MOS tube;
the triggering end of the MOS tube is connected with the data processing module;
the S end and the D end of the MOS tube are respectively connected with the liquid detection module;
the BMC module sends an analog liquid signal to the data processing module;
the data processing module triggers the MOS tube to be conducted according to the analog liquid signal, triggers the liquid detection module to conduct a loop, and judges that liquid exists in the server; the level output end outputs liquid level information which is sent back to the BMC module through the data processing module.
Further, it should be noted that the method further includes: a power supply control module;
the data processing module is connected with the power control module, and controls the power control module to disconnect the system power supply after the data processing module receives the liquid sensing signal and continuously presets the duration.
It is further noted that the data processing module is further configured to receive and transmit the liquid sensing signal to the BMC module;
and receiving a power-off signal sent by the BMC module, and controlling the power control module to disconnect the system power supply.
It is further noted that the data processing module is further configured to receive and transmit the liquid sensing signal to the BMC module;
after the preset time length, the power-off signal sent by the BMC module is not received, and the power control module is controlled to disconnect the system power supply.
Based on the system, the invention also provides a method for detecting the liquid in the server, which comprises the following steps:
the liquid detection assembly detects liquid in the server;
when the cooling liquid circulation device leaks liquid or water enters the server, the liquid detection assembly is triggered to sense a liquid sensing signal, and the liquid sensing signal is transmitted to the data processing module;
the data processing module transmits the liquid induction signal to the BMC module;
the BMC module sends out an alarm prompt.
It should be further noted that, after the liquid detection module of the liquid detection assembly detects and contacts the liquid, the loop of the liquid detection module is turned on, and it is determined that the liquid exists inside the server;
the level output end outputs liquid level information and sends the liquid level information to the data processing module;
and the data processing module controls the power supply control module to disconnect the system power supply according to preset conditions.
It should be further noted that the BMC module sends an analog liquid signal to the data processing module;
the data processing module triggers the MOS tube to be conducted according to the analog liquid signal, triggers the liquid detection module to conduct a loop, and judges that liquid exists in the server;
the level output end outputs liquid level information which is sent back to the BMC module through the data processing module;
and the BMC module outputs normal information of the system leakage detection state.
Based on the system and the method, the invention also provides a server which comprises a liquid detection system in the server.
According to the technical scheme, the invention has the following advantages:
the liquid leakage state in the server is detected through the liquid detection assembly; when the cooling liquid circulation device leaks, triggering a liquid sensing signal of the liquid detection assembly, and transmitting the liquid sensing signal to the data processing module; the data processing module transmits the liquid induction signal to the BMC module; the BMC module sends out an alarm prompt. Therefore, the liquid cooling system of the server can detect in time after liquid leakage, and the problem that the mainboard is burnt out due to the fact that warning cannot be sent out in time or the mainboard burning out problem caused by the fact that warning cannot be given out after the system BMC is invalid is avoided.
The invention can also detect water inflow inside the server, and if water or accumulated water flows into the server, the liquid detection component can detect the water inflow and alarm.
And the invention also realizes the method that after the liquid cooling system leaks liquid or the inside of the server is fed with water, the fault module sends out an alarm to inform maintenance personnel to shut down the system. And when the BMC module fails, the output of the PSU can be forcibly closed through the data processing module, so that the safety of the server is ensured.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of a liquid detection system within a server;
FIG. 2 is a schematic diagram of an embodiment of a liquid detection system inside a server;
FIG. 3 is a schematic view of an embodiment of a liquid detection assembly;
FIG. 4 is a schematic diagram of another system embodiment;
FIG. 5 is a schematic diagram of a simulated fault condition;
fig. 6 is a flow chart of a method for detecting liquid inside a server.
Detailed Description
Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be embodied in electronic hardware, computer software, or combinations of both, and that the components and steps of the examples have been described in a functional general in the foregoing description for the purpose of illustrating clearly the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The block diagrams shown in the figures are functional entities only and do not necessarily correspond to physically separate entities. I.e. these functional entities may be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor means and/or microcontroller means.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may also be an electric, mechanical or other form of connection.
As a preferable scenario, the implementation of the present invention will be described below by taking the detection of liquid leakage by a liquid cooling server as an example, and the present invention relates to a cooling process of a cooling liquid circulation device 4, in which a total water inlet of the cooling liquid circulation device 4 flows into the server through a water inlet pipe, and is distributed to each component through a water separator and a water separation pipe, so as to cool each component, and the returned cooling liquid is collected by a water collector, and then flows out of the server for processing, and is subjected to a recirculation cooling process.
In general, if liquid leakage occurs, the liquid leakage is likely to accumulate at the bottom of the server chassis, or some parts with accumulated liquid, so the system for detecting liquid in the server according to the present invention, as shown in fig. 1, includes: the system comprises a BMC module 1, a data processing module 2 and a liquid detection component 3; the liquid detection component 3 detects the liquid leakage state in the server, and when liquid leakage occurs in the cooling liquid circulating device 4, a liquid induction signal is triggered and transmitted to the data processing module 2; the data processing module 2 transmits the liquid sensing signal to the BMC module 1 to give an alarm. The liquid detection assembly 3 may be disposed at a position where liquid accumulation is likely to occur, or at the bottom of the chassis, and the specific position is not limited.
If water enters the server and accumulates in the server, the liquid detection component can detect and alarm. The above is the same as the above-described leakage detection method.
The data processing module 2 of the present invention may be implemented as a CPLD chip, although the data processing module 2 may include one or more processors for execution, such as one or more Digital Signal Processors (DSPs), general purpose microprocessors, Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs), or other equivalent integrated or discrete logic circuitry. Thus, the term "processor," as used herein, may refer to any of the foregoing structure or any other structure more suitable for implementing the techniques described herein. In addition, in some aspects, the functionality described in this disclosure may be provided in software modules and hardware modules.
As shown in fig. 2, a liquid detection module 5 and a level output terminal 6 are provided as the liquid detection module 3; after the liquid detection module 5 detects and contacts the leaked liquid, the liquid detection module 5 is conducted in a loop and judges that leakage occurs; the level output end 6 outputs liquid level information and sends the liquid level information to the data processing module 2.
As a preferred embodiment of the liquid detection module 3, as shown in fig. 3, the liquid detection module 3 is provided with a plurality of liquid detection modules 5, each module having 4 sets, and a 5V power supply system is adopted. DO1-DO4 may be provided as level outputs 6: four sets of output high and low levels, the high level representing a normal state and the low level representing a leakage state.
R1/B1-R4/B4: four groups of double-core induction wires are connected, the tail ends of the double-core induction wires are connected to the mainboard again, the voltage of two ends of DO1-DO4 and GND is 3.3V in a normal state, and when liquid leaks, the output voltage of DO1-DO4 and GND ports becomes 0V. Both ends of R1/B1 are normally in an open circuit state, which indicates that no liquid leaks; when the liquid is contacted, both ends of R1/B1 are turned into a conductive circuit, and it is determined that a leak has occurred.
That is to say, the induction line is short-circuited after contacting with water leakage, the detection module outputs an L signal, the CPLD identifies an alarm signal and transmits the alarm signal to the BMC, and the BMC immediately informs a background manager of power failure of the whole machine.
The techniques described herein may be implemented in hardware, software, firmware, or any combination thereof. Various features are described as modules, units or components that may be implemented together in an integrated logic device or separately as discrete but interoperable logic devices or other hardware devices. In some cases, various features of an electronic circuit may be implemented as one or more integrated circuit devices, such as an integrated circuit chip or chipset.
After the liquid induction signal is detected, the invention aims to ensure that the internal elements of the server are prevented from being damaged. As shown in fig. 4, the system further includes: a power supply control module 8; the data processing module 2 is connected with the power control module 8, and after the data processing module 2 receives the liquid sensing signal and continuously presets a preset time, the power control module 8 is controlled to disconnect the system power.
In order to avoid the damage of the elements caused by sudden power failure, the data processing module 2 is also used for receiving and transmitting the liquid sensing signal to the BMC module 1; and receiving a power-off signal sent by the BMC module 1, and controlling the power control module 8 to disconnect the system power supply. That is, the power-off signal sent by the BMC module 1 may process the internal components of the server before power-off, and perform a disconnection execution process in advance.
The data processing module 2 is also used for receiving and transmitting the liquid induction signal to the BMC module 1; after the preset time length, the power-off signal sent by the BMC module 1 is not received, and the power control module 8 is controlled to disconnect the system power supply.
As a preferred mode, the CPLD synchronously sets a system shutdown mechanism, and the system is forcibly shut down through Power-ok of the PSU. When the PSU is normal, the Power-ok is high level, when a liquid leakage condition occurs and the BMC fails, the CPLD receives an alarm signal, when the BMC exceeds 20S and has no action response, the CPLD initiates an instruction to forcibly pull down the Power-ok signal of the PSU, the PSU is forcibly turned off to supply Power, and after the server is shut down, a maintainer receives a related accident to maintain, so that the safety of the system is ensured.
In the system for detecting liquid inside a server according to the present invention, in order to ensure stable operation of system leakage detection, as shown in fig. 5, the system further includes: an MOS tube 7;
the triggering end of the MOS tube 7 is connected with the data processing module 2; the S end and the D end of the MOS tube 7 are respectively connected with the liquid detection module 5; the BMC module 1 sends an analog liquid signal to the data processing module 2; the data processing module 2 triggers the MOS tube 7 to be conducted according to the analog liquid signal, triggers the liquid detection module 5 to be conducted to a loop, and judges that liquid exists in the server; the level output end 6 outputs liquid level information which is sent back to the BMC module 1 through the data processing module 2.
Therefore, the BMC module 1 initiates a system leakage detection process to be tested, and the leakage detection process can be ensured to operate stably.
Based on the system, the invention further provides a method for detecting the liquid inside the server, as shown in fig. 6, the method comprises the following steps:
s1, the liquid detection component detects the liquid in the server;
s2, when the cooling liquid circulation device leaks liquid or water enters the server, the liquid detection assembly is triggered to sense a liquid sensing signal, and the liquid sensing signal is transmitted to the data processing module;
s3, the data processing module transmits the liquid sensing signal to the BMC module;
and S4, the BMC module sends out an alarm prompt.
The preferred embodiments of the present invention are:
a liquid detection assembly is configured in the system, each liquid detection module in the liquid detection assembly is provided with 4 groups, and a 5V power supply mode is adopted. Four sets of output high and low levels, H representing a normal state and L representing a leakage state. The level output end obtains the current high and low level state. The induction line is in short circuit after contacting with water leakage, the detection module outputs an L signal, the CPLD identifies an alarm signal and transmits the alarm signal to the BMC, and the BMC immediately informs background management personnel to power off the whole machine.
In the Power-off mode, the CPLD synchronously sets a system shutdown mechanism, and the system is forcibly shut down through Power-ok of the PSU. When the PSU is normal, the Power-ok is high level, when a liquid leakage condition occurs and the BMC fails, the CPLD receives an alarm signal, when the BMC exceeds 20S and has no action response, the CPLD initiates an instruction to forcibly pull down the Power-ok signal of the PSU, the PSU is forcibly turned off to supply Power, and after the server is shut down, a maintainer receives a related accident to maintain, so that the safety of the system is ensured.
The method can simulate the fault state and ensure the normal work of the link at all times. The BMC sends out an enable signal in the simulation process. And after receiving the analog leakage enabling signal sent by the BMC, the CPLD sends 4 analog liquid signals to the MOS switch.
The specific data processing module triggers the MOS tube to be conducted according to the analog liquid signal, triggers the liquid detection module to conduct a loop, and judges that liquid exists in the server;
the level output end outputs liquid level information which is sent back to the BMC module through the data processing module;
and the BMC module outputs the information that the liquid state exists in the system server normally.
Of course, if the BMC module does not receive the liquid level information, the system internal detection process fails.
Based on the system and the method, the invention also provides a server which comprises a liquid detection system in the server.
The above-described servers are illustrative of the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein, and can be implemented as electronic hardware, computer software, or combinations of both, the components and steps of the various examples having been described above generally in terms of their functionality in order to clearly illustrate the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A server internal liquid detection system, comprising: the system comprises a BMC module, a data processing module and a liquid detection assembly;
the liquid detection assembly detects liquid in the server, and when liquid appears in the server, a liquid induction signal is triggered and transmitted to the data processing module;
the data processing module transmits the liquid sensing signal to the BMC module to give an alarm.
2. The in-server liquid detection system according to claim 1,
the liquid detection assembly is provided with a liquid detection module and a level output end;
after the liquid detection module detects and contacts liquid in the server, a loop of the liquid detection module is conducted, and the fact that liquid exists in the server is judged;
the level output end outputs liquid level information and sends the liquid level information to the data processing module.
3. The in-server liquid detection system according to claim 2,
further comprising: an MOS tube;
the triggering end of the MOS tube is connected with the data processing module;
the S end and the D end of the MOS tube are respectively connected with the liquid detection module;
the BMC module sends an analog liquid signal to the data processing module;
the data processing module triggers the MOS tube to be conducted according to the analog liquid signal, triggers the liquid detection module to conduct a loop, and judges that liquid exists in the server; the level output end outputs liquid level information which is sent back to the BMC module through the data processing module.
4. The in-server liquid detection system according to claim 1 or 2,
further comprising: a power supply control module;
the data processing module is connected with the power control module, and controls the power control module to disconnect the system power supply after the data processing module receives the liquid sensing signal and continuously presets the duration.
5. The in-server liquid detection system according to claim 4,
the data processing module is also used for receiving and transmitting the liquid sensing signal to the BMC module;
and receiving a power-off signal sent by the BMC module, and controlling the power control module to disconnect the system power supply.
6. The in-server liquid detection system according to claim 4,
the data processing module is also used for receiving and transmitting the liquid sensing signal to the BMC module;
after the preset time length, the power-off signal sent by the BMC module is not received, and the power control module is controlled to disconnect the system power supply.
7. A method for detecting liquid in a server is characterized by comprising the following steps:
the liquid detection assembly detects liquid in the server;
when the cooling liquid circulation device leaks liquid or water enters the server, the liquid detection assembly is triggered to sense a liquid sensing signal, and the liquid sensing signal is transmitted to the data processing module;
the data processing module transmits the liquid induction signal to the BMC module;
the BMC module sends out an alarm prompt.
8. The method of claim 7, further comprising:
after a liquid detection module of the liquid detection assembly detects and contacts liquid, a loop of the liquid detection module is conducted, and the fact that liquid exists in the server is judged;
the level output end outputs liquid level information and sends the liquid level information to the data processing module;
and the data processing module controls the power supply control module to disconnect the system power supply according to preset conditions.
9. The method of claim 7,
the BMC module sends an analog liquid signal to the data processing module;
the data processing module triggers the MOS tube to be conducted according to the analog liquid signal, triggers the liquid detection module to conduct a loop, and judges that liquid exists in the server;
the level output end outputs liquid level information which is sent back to the BMC module through the data processing module;
and the BMC module outputs normal information of the system leakage detection state.
10. A server, characterized by comprising the in-server liquid detection system according to any one of claims 1 to 6.
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| CN115201919B (en) * | 2021-04-13 | 2023-11-21 | 苹果公司 | Liquid detection and corrosion mitigation |
| CN113867512A (en) * | 2021-08-27 | 2021-12-31 | 苏州浪潮智能科技有限公司 | System, method and device for optimizing liquid leakage protection of liquid cooling server |
| CN113867512B (en) * | 2021-08-27 | 2024-03-26 | 苏州浪潮智能科技有限公司 | System, method and device for optimizing liquid leakage protection of liquid cooling server |
| CN114001874A (en) * | 2021-09-30 | 2022-02-01 | 苏州浪潮智能科技有限公司 | Liquid cooling device, liquid leakage detection method thereof and liquid leakage detection circuit |
| CN114878113A (en) * | 2022-04-30 | 2022-08-09 | 苏州浪潮智能科技有限公司 | Liquid cooling server liquid leakage detection device and detection method |
| CN114878113B (en) * | 2022-04-30 | 2024-01-23 | 苏州浪潮智能科技有限公司 | Liquid leakage detection device and detection method for liquid cooling server |
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