CN111405812A - Server cabinet hot air backflow early warning detection method and system - Google Patents

Abstract

The invention discloses a method for early warning detection of hot air return in a server cabinet, comprising: respectively detecting the current left area temperature Tz, the current right area temperature Ty and the current center area temperature To on the front panel of the server chassis facing the air inlet end; The preset formula calculates the difference ΔT1 between the current left area temperature and the current center area temperature, and calculates the difference ΔT2 between the current right area temperature and the current center area temperature through the preset formula; compares ΔT1 and ΔT2, and judges the difference between the two Whether the larger of the values exceeds the preset reflow temperature rise threshold Ts, and if so, the user is warned according to the preset method. The invention can timely and accurately know the hot air backflow situation in the server cabinet, forecast the hot air backflow risk in advance, and prevent high temperature damage to the server. The invention also discloses a server cabinet hot air backflow early warning detection system, the beneficial effects of which are as described above.

Description

Method and system for early warning detection of hot air backflow in server cabinets

technical field

The invention relates to the technical field of servers, in particular to a method for early warning detection of hot air backflow in a server cabinet. The invention also relates to an early warning detection system for hot air backflow in a server cabinet.

Background technique

With the development of electronic technology in China, more and more electronic devices have been widely used.

The server is an important part of electronic equipment and is a device that provides computing services. Since the server needs to respond to the service request and process it, generally the server should have the ability to undertake and guarantee the service. According to the different types of services provided by the server, it is divided into file server, database server, application server, WEB server, etc. The main components of the server include processor, hard disk, memory, system bus, etc., which are similar to the general computer architecture.

In the era of big data, a large number of IT equipment will be centrally placed in data centers. These data centers contain various types of servers, storage, switches, and numerous racks and other infrastructure. Each type of IT equipment is composed of various hardware boards, such as computing modules, storage modules, chassis, fan modules, and so on. Servers, switches, storage devices and other equipment are usually densely assembled in server cabinets. These devices consume power and generate heat. With the improvement of server performance, the power consumption is also increasing. As a result, there will be very Concentrated heat loads, and if the heat generated by these heat loads is not dissipated in time, it is extremely detrimental to the performance, safety and service life of the equipment.

For the computer room, the frequency of updating and upgrading is generally lower than that of the servers in the computer room. When the air volume of the return air system in the computer room is less than the blowing air volume of the server cabinet, or the air volume of the supply air system is greater than the intake air volume of the server cabinet, the hot aisle The hot air may return to the front of the system through the cable gap between the side wall of the cabinet and the side of the server chassis, which is the hot air return. Hot air reflow has a great impact on the heat dissipation of the server, resulting in an increase in the fan speed of the server, increased heat dissipation power consumption, and even overheating of system components in severe cases, affecting normal use and downtime. At the same time, the hot air return reduces the cooling efficiency of the equipment room and increases the operating cost.

At present, the hot air reflow of the cabinet in the computer room does not pass the automatic detection method designed inside the server. It is mainly through on-site inspection by the maintenance personnel of the computer room, or when the server has abnormal heat dissipation, it is possible to find out that the cabinet has a hot air reflow problem. However, the situation of hot air reflow is relatively hidden, and it is difficult for maintenance personnel to find the risk in time even after inspection, and it is easy to cause huge damage to the server if it is dealt with after the abnormal heat dissipation of the server occurs.

Therefore, it is a technical problem faced by those skilled in the art how to timely and accurately know the hot air backflow situation in the server cabinet, to predict the risk of hot air backflow in advance, and to prevent high temperature damage to the server.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a method for early warning detection of hot air backflow in a server cabinet, which can timely and accurately know the hot air backflow situation in the server cabinet, predict the risk of hot air backflow in advance, and prevent high temperature damage to the server. Another object of the present invention is to provide a server cabinet hot air backflow early warning detection system.

In order to solve the above technical problems, the present invention provides a method for early warning detection of hot air backflow in a server cabinet, including:

Detect the current left area temperature Tz, the current right area temperature Ty and the current center area temperature To on the front panel of the server chassis facing the air inlet end respectively;

Calculate the difference ΔT1 between the current left area temperature and the current center area temperature through the preset formula, and calculate the difference ΔT2 between the current right area temperature and the current center area temperature through the preset formula;

Compare ΔT1 and ΔT2, and determine whether the larger of the two exceeds the preset reflow temperature rise threshold Ts, and if so, alert the user according to the preset method.

Preferably, detecting the current left area temperature Tz specifically includes:

Arrange several detection points along the height direction and/or length direction of the left edge position of the front panel, and collect the temperature values at the positions of each detection point at the same time, and then take the maximum value in each collected data as Tz .

Preferably, detecting the current right area temperature Ty specifically includes:

Arrange a number of detection points on the right edge of the front panel along its height direction and/or length direction, and collect the temperature values at each of the detection points at the same time, and then take the maximum value in each collected data as Ty .

Preferably, detecting the current central area temperature To specifically includes:

Several detection points are arranged along the height direction and/or length direction of the front panel at the geometric center position, and the temperature values at the positions of each detection point are collected simultaneously, and the average value of each collected data is calculated as To.

Preferably, the user is warned according to a preset method, which specifically includes:

The user is alerted with an alarm sound and/or flashing light.

The present invention also provides a server cabinet hot air backflow early warning detection system, including:

a first temperature detection module, used for detecting its current left area temperature Tz on the front panel of the server chassis facing the air inlet end;

The second temperature detection module is used to detect the current right area temperature Ty on the front panel of the server chassis facing the air inlet end;

The third temperature detection module is used to detect the current central area temperature To on the front panel of the server chassis facing the air inlet end;

a first difference calculation module, used for calculating the difference ΔT1 between the current left area temperature and the current center area temperature by a preset formula;

The second difference calculation module is used to calculate the difference ΔT2 between the current right area temperature and the current central area temperature through a preset formula;

The difference comparison warning module is used to compare ΔT1 and ΔT2, and determine whether the larger of the two exceeds the preset reflux temperature rise threshold Ts, and if so, alert the user according to the preset method.

Preferably, the first temperature detection module includes several temperature sensors disposed at the left edge of the front panel, and the second temperature detection module includes a plurality of temperature sensors disposed at the right edge of the front panel A plurality of temperature sensors, the third temperature detection module includes a plurality of temperature sensors disposed at the geometric center of the front panel.

Preferably, the first difference calculation module, the second difference calculation module and the difference comparison and early warning module are all signal-connected to the server BMC.

The method for early warning detection of hot air backflow in a server cabinet provided by the present invention mainly includes three steps. In the first step, the main content is to detect the current The left area temperature, the current right area area and the current center area temperature are denoted as Tz, Ty and To, respectively. In the second step, the main content is to calculate the difference (ΔT1) between the current left area temperature and the current center area temperature and the difference between the current right area temperature and the current center area temperature according to the three data detected in the first step. Difference (ΔT2), the former is calculated by the formula ΔT1=Tz-To, and the latter is calculated by the formula ΔT2=Ty-To. In the third step, compare the values of ΔT1 and ΔT2, and compare the larger of the two with the preset reflow temperature rise threshold Ts. If the larger of ΔT1 and ΔT2 exceeds Ts, it means that the server chassis The temperature rise of the backflow at both ends of the front panel exceeds the safety line, which is a relatively serious situation. It is necessary to warn the user according to the preset method and remind the user to take corresponding measures in time. In this way, the method for early warning detection of hot air backflow of a server cabinet provided by the present invention, through the real-time monitoring of the temperature of the two sides of the front panel of the server chassis and the temperature of the center area, and then judge the current server according to the difference between the temperature of the two sides and the center area. The hot air reflow in the cabinet can timely and accurately know the hot air reflow in the server cabinet, and forecast the risk of hot air reflow in advance to prevent high temperature damage to the server.

Description of drawings

In order to explain the 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 embodiments or the prior art. Obviously, the accompanying drawings in the following description are only It is an embodiment of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to the provided drawings without creative work.

FIG. 1 is a flowchart of a specific implementation manner provided by the present invention.

FIG. 2 is a block diagram of a specific implementation manner provided by the present invention.

Figure 3 is an example of the application of the server cabinet hot air backflow early warning detection system on the server cabinet.

Among them, in Figure 2-Figure 3:

A first temperature detection module-1, a second temperature detection module-2, a third temperature detection module-3, a first difference calculation module-4, a second difference calculation module-5, and a difference comparison and early warning module-6.

Detailed ways

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. Obviously, the described embodiments are only 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.

Please refer to FIG. 1 . FIG. 1 is a schematic diagram of the overall structure of a specific embodiment provided by the present invention.

In a specific embodiment provided by the present invention, the method for early warning detection of hot air backflow in a server cabinet mainly includes three steps, which mainly include:

Step S1, on the front panel of the server chassis facing the air inlet end, respectively detect its current left area temperature Tz, current right area temperature Ty and current center area temperature To;

Step S2, calculate the difference between the current left area temperature and the current center area temperature by formula ΔT1=Tz-To, and calculate the current right area temperature and the current center area temperature difference by formula ΔT2=Ty-To;

Step S3, compare ΔT1 and ΔT2, and determine whether the larger of the two exceeds the preset reflux temperature rise threshold Ts, and if so, alert the user according to the preset method.

Among them, in the first step, the main content is to detect the current left area temperature, current right area area and current center area temperature of the front panel on the front panel of the server chassis toward the (cold air) air inlet end, respectively. Denoted as Tz, Ty and To.

In the second step, the main content is to calculate the difference (ΔT1) between the current left area temperature and the current center area temperature and the difference between the current right area temperature and the current center area temperature according to the three data detected in the first step. Difference (ΔT2), the former is calculated by the formula ΔT1=Tz-To, and the latter is calculated by the formula ΔT2=Ty-To.

In the third step, compare the values of ΔT1 and ΔT2, and compare the larger of the two with the preset reflow temperature rise threshold Ts. If the larger of ΔT1 and ΔT2 exceeds Ts, it means that the server chassis The temperature rise of the backflow at both ends of the front panel exceeds the safety line, which is a relatively serious situation. It is necessary to warn the user according to the preset method and remind the user to take corresponding measures in time.

In this way, the method for early warning detection of hot air backflow of a server cabinet provided by this embodiment, through the real-time monitoring of the temperature of the two sides of the front panel of the server chassis and the temperature of the center area, and then according to the difference between the temperature of the two sides and the center area. The hot air return situation summarized by the server cabinet can timely and accurately know the hot air return situation in the server cabinet, and forecast the risk of hot air return in advance to prevent high temperature damage to the server.

It should be noted that the specific value of the preset reflow temperature rise threshold value Ts of the server cabinet is not fixed, and may be 10° C.˜20° C. in this embodiment. For server cabinets of different sizes and specifications, the specific value of the preset reflow temperature rise threshold Ts can be flexibly changed.

When detecting the current temperature Tz of the left area of the front panel, specifically, in order to improve the accuracy of the detected value and the reliability of the hot air reflow forecast, the present embodiment measures the height direction (width direction) at the left edge position of the front panel. ) and/or several detection points are arranged in the length direction, so that each detection point forms a temperature detection matrix, and the temperature values at the positions of each detection point are collected at the same time, and finally the maximum value in each collected data is selected as Tz.

In the same way, when detecting the temperature Ty of the current right area of the front panel, specifically, in order to improve the accuracy of the detected value and the reliability of the forecast of hot air reflow, the present embodiment is located at the right edge of the front panel along the height direction. Several detection points are arranged in the (width direction) and/or length direction, so that each detection point forms a temperature detection matrix, and the temperature values at the positions of each detection point are collected at the same time, and finally the maximum value in each collected data is selected as Ty .

When detecting the temperature To of the current central area of the front panel, specifically, in order to improve the accuracy of the detected value and the reliability of the hot air reflow forecast, this embodiment follows the height direction (width direction) at the geometric center position of the front panel. And/or several detection points are arranged in the length direction, so that each detection point forms a temperature detection matrix, and the temperature values at the positions of each detection point are collected at the same time, and finally the average value of each collected data is calculated and used as To.

In general, due to the symmetrical structure of the server cabinet and the close installation of the server chassis, the temperature on the left and right sides of the front panel of the server chassis is generally equal, even if there is a gap, it is kept within a small range, but both are generally greater than the temperature in the central area of the front panel. , that is, Tz≈Ty>To.

When alerting the user according to the preset method, specifically, the stored alarm prompt audio can be played through the server and/or the flashing light prompt can be performed through the warning light.

This embodiment also provides a server cabinet hot air return early warning detection system, which mainly includes a first temperature detection module 1, a second temperature detection module 2, a third temperature detection module 3, a first difference calculation module 4, and a second difference The calculation module 5 and the difference comparison warning module 6.

Among them, the first temperature detection module 1 is mainly used to detect the current left area temperature Tz on the front panel of the server chassis facing the air inlet end, and the second temperature detection module 2 is mainly used to detect the front panel of the server chassis facing the air inlet end. The third temperature detection module 3 is mainly used to detect its current central region temperature To on the front panel of the server chassis facing the air inlet end, and the first difference calculation module 4 is mainly used to pass the formula ΔT1=Tz-To calculates the difference between the current left area temperature and the current center area temperature, the second difference calculation module 5 is mainly used to calculate the current right area temperature and the current center area temperature difference through the formula ΔT2=Ty-To The difference comparison warning module 6 is mainly used to compare ΔT1 and ΔT2, and determine whether the larger of the two exceeds the preset reflux temperature rise threshold Ts, and if so, warn the user according to the preset method.

In a preferred embodiment of the first temperature detection module 1, the second temperature detection module 2, and the third temperature detection module 3, in order to improve the accuracy of the detection value and the reliability of the hot air return forecast, the first temperature detection module 1 includes several temperature sensors arranged at the left edge position of the front panel, the second temperature detection module 2 includes several temperature sensors arranged at the right edge position of the front panel, and the third temperature detection module 3 includes several temperature sensors. A temperature sensor located at the geometric center of the front panel.

In addition, the first difference calculation module 4, the second difference calculation module 5 and the difference comparison and early warning module 6 can also all be connected to the server BMC (Baseboard Management Controller, baseboard management controller) signal. The temperature detection values of various places on the panel are sent to the server BMC, and the server BMC uniformly performs subsequent data calculation, comparison and forecasting and other operations.

The above description of the disclosed embodiments enables 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 implemented in 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 (8)

1. a server cabinet hot air return early warning detection method, is characterized in that, comprises: Detect the current left area temperature Tz, the current right area temperature Ty and the current center area temperature To on the front panel of the server chassis facing the air inlet end respectively; Calculate the difference ΔT1 between the current left area temperature and the current center area temperature by a preset formula, and calculate the difference ΔT2 between the current right area temperature and the current center area temperature through a preset formula; Compare ΔT1 and ΔT2, and determine whether the larger of the two exceeds the preset reflow temperature rise threshold Ts, and if so, alert the user according to the preset method. 2. The method for early warning detection of hot air backflow in a server cabinet according to claim 1, wherein the detection of the current left area temperature Tz specifically comprises: Arrange several detection points along the height direction and/or length direction of the left edge position of the front panel, and collect the temperature values at the positions of each detection point at the same time, and then take the maximum value in each collected data as Tz . 3. The method for early warning detection of hot air backflow in a server cabinet according to claim 2, wherein the detection of the current right area temperature Ty specifically comprises: Arrange a number of detection points on the right edge of the front panel along its height direction and/or length direction, and collect the temperature values at each of the detection points at the same time, and then take the maximum value in each collected data as Ty . 4. The method for early warning detection of hot air backflow in a server cabinet according to claim 3, wherein detecting the current central area temperature To specifically comprises: Several detection points are arranged along the height direction and/or length direction of the front panel at the geometric center position, and the temperature values at the positions of each detection point are collected simultaneously, and the average value of each collected data is calculated as To. 5. The method for early warning detection of hot air backflow in a server cabinet according to claim 4, characterized in that the user is warned according to a preset method, which specifically comprises: The user is alerted with an alarm sound and/or flashing light. 6. A server cabinet hot air backflow early warning detection system, characterized in that, comprising: a first temperature detection module, used for detecting its current left area temperature Tz on the front panel of the server chassis facing the air inlet end; The second temperature detection module is used to detect the current right area temperature Ty on the front panel of the server chassis facing the air inlet end; The third temperature detection module is used to detect the current central area temperature To on the front panel of the server chassis facing the air inlet end; a first difference calculation module, used for calculating the difference ΔT1 between the current left area temperature and the current center area temperature by a preset formula; The second difference calculation module is used to calculate the difference ΔT2 between the current right area temperature and the current central area temperature through a preset formula; The difference comparison warning module is used to compare ΔT1 and ΔT2, and determine whether the larger of the two exceeds the preset reflux temperature rise threshold Ts, and if so, alert the user according to the preset method. 7 . The hot air return early warning detection system of a server cabinet according to claim 6 , wherein the first temperature detection module comprises a plurality of temperature sensors arranged at the left edge of the front panel, and the first temperature detection module comprises a plurality of temperature sensors. 8 . The second temperature detection module includes several temperature sensors arranged at the right edge of the front panel, and the third temperature detection module includes several temperature sensors arranged at the geometric center of the front panel. 8 . The hot air return early warning detection system of a server cabinet according to claim 7 , wherein the first difference calculation module, the second difference calculation module and the difference comparison and early warning module are all related to the server BMC. 9 . signal connection.

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