JP6494811B1 - Thermal airflow measuring device, thermal airflow measuring system, and thermal airflow image generating method - Google Patents

Abstract

To realize a new measurement mode in which multipoint measurement points and simplification of measurement are compatible for measurement of spatial temperature distribution in a data center.
A thermal air flow measurement system 40 is a device for measuring the temperature and air flow in a data center, and has a three-dimensional shape and a body 42 composed of a frame body capable of three-dimensional air flow. Equipped with Temperature sensors 46 a to 46 d are three-dimensionally arranged and attached to the body 42. Further, anemometers 48a and 48b for measuring the air flow are attached to the body 42. The position in the data center at which the temperature sensors 46a to 46d and the anemometers 48a and 48b perform measurement is given by an input to the PC 60. Wheels 44 are attached to the lower part of the body 42.
[Selected figure] Figure 3

Description

  The present invention relates to a thermal airflow measurement apparatus, a thermal airflow measurement system, and a thermal airflow image generation method for measuring temperature and airflow in a data center.

  In a data center, many electronic devices related to information communication technology (ICT) are installed, and air conditioning management is performed to prevent high temperature of the electronic devices. In managing the air conditioning of the data center, for example, a worker installs temperature sensors at many space positions in the center to measure the temperature, and creates a temperature distribution map. This makes it possible to grasp the temperature distribution and heat load.

  Patent Document 1 below describes a floor traveling type automatic monitoring robot for monitoring an engine room of a building without using a large number of cameras. The robot has a carriage, detects a ferrite marker placed in a band on the floor surface, and runs along the marker. The carriage is provided with a monitoring camera that captures an image of the monitored location, and an infrared camera that captures the temperature distribution of the monitored location. The imaging signal is transmitted to the monitoring and monitoring room, and displayed on the monitoring screen with the temperature distribution image superimposed or juxtaposed to the visible image.

  Patent Document 2 below describes a self-propelled traverse device for measuring the indoor environment of a crane room at multiple points. In this device, a prop that extends and retracts with the remote device is installed in a traveling carriage shape that is self-propelled in any direction by remote control, and a sensor for detecting air cleanliness, temperature, humidity, etc. . The device can be remotely operated from outside, and can read the detection value of the sensor outside the room.

  Patent Document 3 below describes a method of monitoring the state of equipment installed in a plant using two-dimensional temperature, vibration, or acoustic measurement data obtained by remote non-contact measurement equipment. ing. Here, the obtained two-dimensional distribution measurement image is aligned and displayed on the space shape model of the plant equipment.

JP-A-2-277105 Japanese Utility Model Publication No. 62-162626 JP-A-8-263133

  In the method of installing a large number of temperature sensors in a data center to obtain temperature distribution, it is necessary to prepare many sensors. Also, it takes a lot of time for installation work, organizing the obtained data, and creating a distribution chart. On the other hand, if the number of sensors to be installed is reduced, the resolution of the distribution map is lowered and it becomes difficult to grasp in detail. Also, low resolution data will lack visual appeal when describing the situation to those responsible for managing the data center.

  In the robot of Patent Document 1, a dedicated marker is installed on the floor to constantly monitor the same facility. However, the need for high resolution data in the data center is not always constant, but ad hoc. For this reason, it is difficult to introduce a robot as described in Patent Document 1 above.

  The device of Patent Document 2 grasps the indoor environment of the clean room by extension and contraction of the support and self-traveling. A clean room is generally considered to use this apparatus because of the limited access to people and the high uniformity of the indoor environment. However, in a clean room, nonuniformities in the temperature environment may be a problem, and close sampling is required, and the method of Patent Document 2 lowers the efficiency.

  An object of the present invention is to realize a new measurement mode in which multipoint measurement points and simplification of measurement are compatible for measurement of spatial temperature distribution in a data center.

The thermal air flow measuring device according to the present invention is a device for measuring the temperature and air flow in the data center, and has a three-dimensional shape, a body formed to allow three-dimensional ventilation, and the body A position in the data center where a plurality of temperature sensors arranged three-dimensionally and attached and measuring temperature, an air flow sensor attached to the body and measuring an air flow, the temperature sensor and the air flow sensor measure an acquisition unit configured to acquire the data, and a wheel attached to a lower portion of the body, attached to the body, comprising at least a two thermo cameras, the measures the surface temperature of the surrounding objects, the at least two thermo camera, measure the surface temperature of the object in different directions.

  The thermal airflow measurement device measures the temperature and airflow in the data center. A data center is a facility that consolidates, installs, and operates electronic devices related to ICT. Such electronic devices include at least one of a computer, a storage device, and a communication device. For example, an intranet data center or an internet data center equipped with a server for intranet or the internet, a communication device, etc. is a type of data center. In addition, a computer center equipped with a high-speed computer and performing data calculation, analysis, storage, etc. is also a kind of data center.

  The body of the thermal air flow measurement device has a three-dimensional shape. That is, it is not a linear one-dimensional shape or a planar two-dimensional shape, but is a three-dimensional shape expanded in three directions of space. In addition, the body is formed in a shape that allows three-dimensional ventilation. That is, air from the direction of travel, air from the lateral direction, and air from the floor or ceiling may flow at least partially through the body. This body can be formed, for example, by combining elongated rod-like members, or can be formed by combining plate members having a high area ratio of holes. However, a part of the body may have a portion formed of a plate-like member without a hole or the like. For example, it may be assumed that a plate-like member without a hole is used to secure the strength and install the device.

  The temperature sensor is a sensor such as a thermistor that measures the temperature of the air in the place. The temperature sensor is attached to the body directly or through an attachment member. The temperature sensors are three-dimensionally arranged. That is, at least four temperature sensors are disposed, at least one of which is disposed in a plane different from a plane including triangles formed by the other three temperature sensors.

  The air flow sensor is a sensor that measures one or both of the wind speed and the wind direction. It may be called an anemometer or an anemometer etc. In general, the air flow exhibits a three-dimensional motion, but the air flow sensor may be, for example, a sensor that measures the wind speed in a specific one direction or two directions, or may be a sensor that measures only the wind direction. Of course, it is also possible to use a sensor that measures the wind speed in three directions.

  An acquisition means acquires the position data in the data center where measurement data were measured. The acquisition of position data may be automatically recognized by the device, or may be externally input by a user or the like. The position data can be expressed, for example, as coordinate values when the data center is virtually set.

  The wheels are attached to the lower part of the body and are used to move the thermal airflow measurement device. The wheels may be driven by a drive source such as a motor. In this case, the drive control can be performed by a person, or a route instructed in advance or a route set by itself can be a self-propelled device that moves and controls by itself. However, it may be moved by an external force such as a person or a robot without a drive source.

  The thermal air flow measurement device according to one aspect of the present invention further includes at least two thermo cameras attached to the body and measuring surface temperatures of surrounding objects, wherein the at least two thermo cameras are in different directions. The surface temperature of the object is measured.

  The thermo camera is a camera that detects infrared light. An object generally emits infrared rays according to the surface temperature, and the surface temperature can be detected by detecting the infrared rays. At least two thermo cameras are attached. And, at least two thermo cameras measure objects in different directions. Measurement by a thermo camera is expected to be useful for grasping the temperature of the intake surface of the server rack and the like.

  The thermal air flow measurement device according to one aspect of the present invention includes at least eight of the temperature sensors, and at least two of the temperature sensors are arranged at rectangular positions at at least two height levels.

  This makes it possible to grasp the temperature with horizontal spread at a plurality of height levels. As in the case of arranging at the position which makes the apex of a cube or a rectangular parallelepiped, the positions of the squares of each level may be aligned. In addition, it is also effective to arrange the temperature sensors at each level so as to be symmetrical with respect to the traveling direction (the left and right arrangements when viewed in the traveling direction are targets). The measurement levels may be three height levels, four height levels, five height levels, six height levels or more, and so on.

  The thermal air flow measurement device according to one aspect of the present invention comprises at least four of the thermo cameras, and at least two of the thermo cameras to which at least two thermo cameras are attached and at the same level respectively at at least two height levels. The cameras are oriented about 180 degrees different from one another.

  Here, about 180 degrees means that there is an angle difference of about 150 degrees to about 210 degrees when the imaging center position of the thermo camera is viewed in a horizontal plane. In order to make the difference in direction remarkable, the angle difference may be in the range of 160 degrees to 200 degrees, and the angle difference may be in the range of 170 degrees to 190 degrees. The orientation of the thermo camera at each level can also be aligned. That is, the upper level thermocamera and the lower level thermocamera may face in the same direction. In addition, it is possible to turn the thermo camera of each level in a direction (right and left direction when going in the direction of movement) substantially orthogonal to the direction of movement. With such a configuration, for example, in the case where the temperature and air flow measurement device performs measurement while moving along a path sandwiched between server racks and the like on both sides, efficiently measuring the surface temperature of the server racks and the like on both sides, etc. It becomes possible.

  In the thermal air flow measurement device according to one aspect of the present invention, the height of the thermal air flow measurement device is 150 cm or more.

  The height of a server rack or the like in a data center is generally about 180 cm to 220 cm. In order to measure the temperature environment of such a server rack or the like, it may be desirable in some cases to set the height of the thermal airflow measurement device to about 150 cm or more. Further, it can be made, for example, 180 cm or more, or 200 cm or more, close to the height of the server rack or the like. Moreover, it can also be 250 cm or less, 220 cm or less, or 200 cm or less. On the other hand, from the viewpoint of portability, it is also possible to provide a structure that can expand and contract in the height direction. In this case, it can be, for example, 150 cm or more, 180 cm or more, or 200 cm or more when stretched. Moreover, when it extends, it can also be 250 cm or less, 220 cm or less, or 200 cm or less, for example.

  The temperature and air flow measurement device according to one aspect of the present invention has a horizontal short side of 60 cm or less.

  The short side in the horizontal direction needs to be shortened to some extent from the viewpoint of passing through the passage sandwiched by the server racks and the like. If the data center has a relatively wide passage, the short side may be, for example, 80 cm or less. However, in consideration of the versatility of the thermal air flow measurement device, it is desirable to cope with a somewhat narrow passage. Therefore, it is conceivable to set the short side in the horizontal direction within 60 cm. Note that the thermal airflow measurement device does not have to be rectangular. In the case of an image of a rectangular parallelepiped containing the device, the short side in the horizontal direction may be 60 cm or less. The short side can also be within 50 cm or 40 cm. Also, the short side can be in a direction orthogonal to the traveling direction.

  A thermal air flow measurement system according to an aspect of the present invention includes a thermal air flow measurement device, and a display device that displays the temperature and the spatial distribution of the air flow measured by the thermal air flow measurement device in association with the shape in the data center. And.

  The display device can be constructed, for example, using a PC (personal computer). The display device can also be constructed using, for example, a smartphone or a tablet-type portable terminal device. The display device may be integrated with the temperature air flow measurement device, such as being attached to the body of the temperature air flow measurement device, or may be remotely located. In the case of remote location, for example, transmission and reception of data are performed by a wireless or wired communication device.

  The shape in the data center refers to the external shape of a server rack, a computer, etc. arranged in the space of the data center. In addition, when displaying, it may be displayed superimposed on equipment related to temperature or air flow, such as a cold air outlet from an air conditioner. In addition, for example, when there is a region having a temperature higher than the set temperature, or when there is a region having a wind velocity smaller than the set wind velocity (or the wind volume considering its spatial spread), for example. Alternatively, a warning may be given by displaying a different color or character from the normal display.

In the thermal airflow image generation method according to one aspect of the present invention, at least one airflow sensor and a plurality of three-dimensionally disposed paths between the aligned electronic devices or electronic device storage racks in the data center. Measuring an air flow distribution and a temperature distribution by moving a temperature sensor and at least two thermo cameras measuring surface temperatures of surrounding objects in directions different from each other ; the air flow sensor, the temperature sensor, and the thermo The temperature distribution and the air flow distribution in the data center are superimposed or juxtaposed based on the step of acquiring the position in the data center at which the camera and the measurement were performed, and the obtained temperature data, air flow data, thermo camera data and position data. And an image generation step of generating a visualized image. The generated image may be electronically displayed or printed.

  According to one aspect of the thermal air flow measurement device of the present invention, measurement of air flow in the data center and measurement of temperatures at a plurality of points can be performed while moving. For this reason, it becomes possible to grasp the distribution of temperature and air flow in the data center simply and quickly.

It is a top view which shows the example of a server center. It is sectional drawing which shows the example of a server center. It is a perspective view which shows the schematic structure of the thermal airflow measurement system 40 concerning this embodiment. It is a figure which shows the functional structure of the thermal airflow measurement system 40 concerning this embodiment. It is a figure which shows the measurement process by the thermal airflow measurement system 40 concerning this embodiment. It is a figure which shows the aspect which displayed distribution of temperature and air flow based on the result of having measured the inside of a test room.

  In the present embodiment, measurement of temperature and the like is performed for a data center. In a data center, a large number of electronic devices are generally regularly aligned. A plurality of small electronic devices are stored in a rack for storing electronic devices called a server rack or the like, and the racks are aligned. These electronic devices are often connected to power cables and communication cables that are passed under the floor.

  Such electronic devices consume a large amount of electric power and are heated to a high temperature. Therefore, a high output cooling device is installed in the data center, and air conditioning management is performed to manage the air flowing through the electronic devices at an appropriate temperature. In some cases, air outlets and air inlets for air conditioning are provided under the floor and the ceiling to control the flow of air in the entire room. The data centers range in size from 50 square meters or less, 50 square meters or more, 100 square meters or more, 1,000 square meters or more, or 10,000 square meters or more.

  FIG. 1 and FIG. 2 are diagrams schematically showing one mode of the data center. FIG. 1 is a top view of the data center 10, and FIG. 2 is a cross-sectional view of the data center 10 taken along the plane AA of FIG.

  The data center 10 is built in a room surrounded by walls 12. Here, server rack groups 14, 16, 18, 20 in which a plurality of server racks are arranged are arranged in four rows, and passages 22a, 22b, 22c, 22d, 22e are provided on both sides thereof. The size of the server rack is not necessarily fixed, but is often about 180 to 220 cm in height, and about 100 cm to 120 cm in depth (thickness between the aisle and the aisle). The width of one server rack is, for example, about 60 cm to 80 cm, and the server rack groups 14, 16, 18, 20 are formed by arranging them by the number according to the layout of the room. Although the setting of the width of the passages 22a, 22b, 22c, 22d and 22e is optional, for example, it is set to about 80 cm to 120 cm. Each server rack is provided with a plurality of shelves in which servers are stored. A power cable and a communication cable are connected to each server. The power supply cable and the communication cable are passed through the underfloor space 28 shown in FIG. 2 and connected to the server, and the floor surface of the data center 10 is normally kept flat.

  In the data center 10, a plurality of air conditioners 24 and 26 are installed. The air conditioners 24 and 26 are used to cool the room of the data center 10, and in principle, 24 hours of operation is performed. In FIG. 2, the flow of air is indicated by arrows. In the air conditioner 26, the air cooled in the device is sent from the lower outlet 26 a to the under floor space 28. The underfloor space 28 may be provided with a dedicated air flow path for controlling the flow of air, or may not be provided with a special air flow path. If the air passage is not provided, the amount of air flow may be influenced by the cables passed through the underfloor space 28. The cool air sent to the underfloor space 28 flows into the room from the outlets 26b, 26c, 26d opened on the floor surface.

  The outlets 24b and 26b are provided in the passage 22a on the left side of the drawing of the server rack group 14, but the outlets 22b and 26b are not provided in the passage 22b between the server racks 14 and 16. The outlets 22 c and 26 c are provided in the passage 22 c between the server racks 16 and 18, and the outlets are not provided in the passage 22 d between the server racks 18 and 20. The outlets 22d and 26d are provided in the passage 22e on the right side of the drawing.

  The air in the room of the data center 10 is drawn into the space 30 from the air inlets 26e and 26f provided near the ceiling. The intake ports 26e and 26f are disposed directly above the passages 22d and 22b, respectively. Passages 22d and 22e are passages to which cold air is not sent. The air in the space 30 is returned to the air conditioner 26 by the duct 26g.

  With such an air conditioning setting, in the data center 10, the single-passage passages 22a, 22c, 22e become cold passages through which the cool air is sent out from the underfloor space 28, and air warmed between the passages 22b, 22d between them is in the space behind the ceiling. It is a warm passage to be sucked.

  In the server rack groups 14, 16, 18, 20, the side surface on the cold aisle side is the intake surface, and the side surface on the warm aisle side is the exhaust surface. In particular, in a server rack of a type in which the fan sends cold air to the inside, the intake surface where the fan is attached below the cold aisle side (in this case, it refers to the range where the fan is attached and intake is performed rather than the entire side) And an exhaust surface for exhausting air to the warm aisle information. For example, in the server rack group 14, the air intake surface 14a is provided at the lower portion on the passage 22a side, and the exhaust surface 14b is provided at the upper portion on the passage 22b side. Similarly, an exhaust surface 16a and an intake surface 16b are provided in the server rack group 16, an intake surface 18a and an exhaust surface 18b are provided in the server rack group 18, and an exhaust surface 20a and an intake surface 20b of the server rack group 20 are provided. There is.

  In order to prevent the failure of the electronic device such as the server and operate it stably, it is necessary to feed an appropriate amount of cold air to the server rack group 14, 16, 18, 20. Therefore, it is required to grasp the temperature in the room of the data center 10 in detail. Specifically, whether the temperature of the cold passages 22a, 22c, 22e is lower than the set temperature, or a sufficient amount (air velocity) of air flows in the assumed direction, or the intake surfaces 14a, 16b, 18a, 20b It is verified that the temperature is maintained at a sufficiently low temperature. It is also verified that the exhaust surfaces 14b, 16a, 18b and 20a are not heated, the warm passages 22b and 22d are not heated, and a sufficient amount of air is flowing in the assumed direction. . The thermal air flow measuring device according to the present embodiment measures such temperature and air flow.

  FIG. 3 is a perspective view of the thermal air flow measurement system 40 according to the present embodiment. The body 42 of the thermal air flow measurement system 40 is formed as a frame body combining thin rod-like members, and the x direction (traveling direction at the time of measurement), y direction (the width direction at the time of measurement), z direction It has a rectangular shape with sides extending in the height direction). As the rod-like member, a lightweight metal such as an aluminum alloy or a resin having high strength can be used. The inside of the body 42 is in a sparse state, and the outer surface is not covered with a plate or the like. Therefore, even if air flows from the directions including the x direction, the y direction, and the z direction to the body 42, most of the air passes through the inside.

  On the bottom of the body 42, small-diameter wheels 44 are attached to the four corners, respectively. A driving source such as a motor is not attached to the wheel 44, and it plays a role of moving the body 42 smoothly by following the force applied to the body 42. The wheels 44 can be rotated forward and backward, and can be moved in either direction in order to change the direction according to the external force.

  The height of the thermal air flow measurement system 40 in the z direction is the sum of the height of the body 42 and the height of the wheels 44 supporting it, and is about 180 cm. If the height of the thermal airflow measurement device is approximately the same as the general height of the server rack, temperature measurement in the height direction of the server rack is facilitated, so for example, about 200 cm or about 220 cm. You may extend it. The height may be reduced to, for example, about 160 cm or 150 cm in consideration of the ease of carrying, or may be configured to be expandable in the height direction. The length in the x direction of the thermal air flow measurement system 40 is set to about 80 cm, and the length in the y direction is set to about 40 cm. When the length in the x direction is increased, the measurement range is expanded to accelerate the measurement. For example, the length may be increased to about 100 cm, about 120 cm, about 150 cm, or about 200 cm. On the other hand, when it is long in the x direction, movement may be hindered, and for example, it may be as short as about 60 cm or about 40 cm. The length in the y direction needs to be smaller than the width of the passage. Therefore, for example, it is conceivable to set the upper limit of the width such as about 80 cm or less, about 60 cm or less, about 40 cm or less, and further about 30 cm or less. However, if the width is narrowed too much, the measurement in the y direction can not be broadened and becomes unstable at the time of movement, so it is conceivable to set the lower limit of the width to 20 cm or more or 30 cm or more.

  In the body 42, four temperature sensors 46a, 46b, 46c and 46d (these may be collectively referred to as a temperature sensor 46) are attached to frames at four corners of a rectangular parallelepiped. The lowest height level temperature sensor 46a is mounted at a height of about 20 cm. And the second lowest height level temperature sensor 46b is about 60 cm high, the third temperature sensor 46c is about 100 cm high, and the highest height level temperature sensor 46d is about 190 cm high. ing. The temperature sensors 46 are closely installed at relatively low positions in order to capture the cold air blow-out situation in detail, but it is also possible to set them at equal intervals. As the temperature sensor 46, for example, a thermistor can be used.

  An anemometer 48a for measuring the wind speed in the x direction is attached to the upper front of the body 42 in the x direction. Further, an anemometer 48b for measuring the wind speed in the y direction is attached to the end on the y direction side at the same height as the anemometer 48a. The anemometers 48a and 48b (these may be collectively referred to as the anemometer 48) are air flow sensors that measure the wind speed based on the rotation of a propeller. Since the anemometers 48a and 48b have a short installation distance, these measurement results can be treated as representing the wind speeds in two directions at substantially the same point. In addition, it is also possible to employ | adopt what performs three-dimensional wind direction wind speed including z direction as the anemometer 48. FIG. Moreover, it is possible to use an ultrasonic anemometer etc. instead of a propeller type anemometer.

  Six thermo cameras 50 are attached to two frames extending in the z direction at the central portion of the body 42. Of these, three are attached in the positive direction of the y-direction, and the remaining three are attached in the negative direction of the y-direction. The lowest height level thermo camera 50a is mounted at a height of about 35 cm, the middle height level thermo camera 50b is mounted at a height of 105 cm, and the highest height level thermo camera 50c is 175 cm Attached to the height. The thermo cameras 50a, 50b, and 50c aim to capture the entire side surface of the server rack as a whole, and are arranged substantially equally in the height direction. Further, by arranging the thermo cameras 50a, 50b, 50c not at the outer side of the body 42 but at the center, the distance to the server rack becomes longer, and the field of view is expanded. The thermo camera 50 can obtain the temperature of the object surface by capturing an infrared image. Photographing can be performed with either a still image or a moving image.

  An all-sky camera 52 is provided at the top of the front of the body 42 in the direction of travel. The all-sky camera 52 can be used, for example, for grasping the position of the thermal air flow measurement system 40 in a room. In addition, a sensor substrate 54 is provided at the lower part in the rear of the body 42 in the direction of travel. The sensor substrate 54 is connected to the temperature sensor 46, the anemometer 48, and the thermo camera 50, and is a substrate on which a circuit for controlling these sensors is mounted. In the sensor substrate 54, for example, a process of inputting an electric signal from the temperature sensor 46 and converting it into temperature data, a process of inputting an electric signal from the anemometer 48 and converting it into wind direction and wind data, imaging data of the thermo camera 50 And conversion processing to temperature data. A battery 56 is mounted near the bottom of the body 42. The battery 56 supplies power to the temperature sensor 46, the anemometer 48, the thermo camera 50, the all sky camera 52, the sensor substrate 54, the PC (personal computer) 60, and the like. The sensor substrate 54, the battery 56, the PC 60 and the like show a certain amount of heat generation, but since they are very small compared to the amount of heat generation in the data center 10, the influence on the measurement is small. In addition, the sensor substrate 54, the battery 56, the PC 60, and the like interfere with the air flow passing through the body 42 to some extent. However, since the anemometer 48 is installed at a distance, its influence on the measurement result is small.

  The PC 60 is installed near the middle stage on the rear side in the traveling direction of the body 42. The PC 60 inputs measurement results from the temperature sensor 46, the anemometer 48, the thermo camera 50, and the all-sky camera 52 from the sensor substrate 54, and then performs correlation processing with position data, displays an image such as temperature distribution or air flow distribution, Perform warning display etc. The PC 60 can also be attached to the body 42 as in the example of FIG. Also, the body 42 may be provided with a function of wirelessly transmitting measurement data to the PC 60 as a separate body without attaching the PC 60 to the body 42.

  Here, the functional configuration of the thermal air flow measurement system 40 will be described with reference to FIG. 4. As described above, the thermal airflow measurement system 40 includes the plurality of temperature sensors 46, the anemometer 48, and the plurality of thermo cameras 50. These measurement data are input to the PC 60.

  The PC 60 can perform various information processing by controlling the operation of hardware having an arithmetic function by software such as a program or data. The PC 60 includes a user input unit 70 built using an input device from a touch panel or a network, a storage unit 80 built using a storage device such as a semiconductor memory or a hard disk, and an arithmetic device such as a CPU. The functional units of the display processing unit 100 constructed and the display unit 110 constructed using a display or the like are constructed.

  The user input unit 70 includes a layout input unit 72, a measurement instruction unit 74, a position data input unit 76, and a display instruction unit 78. These are implemented, for example, as buttons or windows of an application. The layout input unit 72 inputs layout data indicating the shape of the room of the data center 10 and the arrangement of server racks and the like. The measurer who is the user can input layout data by using, for example, CAD (computer aided design) software. When the measurer who is the user moves and sets the temperature / air flow measurement system 40 to an appropriate place and sets it, the measurement instruction unit 74 presses the measurement button or the like to set the temperature sensor 46, the anemometer 48, and the thermo camera 50. It is what makes measurement. Data may be constantly output to the temperature sensor 46, the anemometer 48, and the thermo camera 50, and appropriate data may be recorded at the timing when an instruction from the measurement instruction unit 74 is issued. The position data input unit 76 inputs the place where the measurement instruction has been given by the measurement instruction unit 74. For example, when an instruction is issued from the measurement instruction unit 74, position data can be input by designating the center position and the direction of the body 42 of the thermal airflow measurement system 40 on the indoor layout data of the data center 10 it can. Alternatively, position data may be automatically acquired from information of the all-sky camera 52 or the like. The display instruction unit 78 instructs display of a temperature distribution, an air flow distribution, and the like based on the obtained measurement data. In the display instruction, the type of data to be displayed, the viewpoint, the display range, and the like can be set.

  In the storage unit 80, layout data 82 and sensor relative position data 84 are displayed. The layout data 82 is data input from the layout input unit 72. The sensor relative position data 84 is data in which the relative positions of the plurality of temperature sensors 46, the anemometer 48, and the plurality of thermo cameras 50 in the temperature and air flow measurement system 40 are described. The sensor relative position data 84 can be given as, for example, data that is located at Δx in the traveling direction, Δy in the width direction, and Δz in the height direction with reference to the center position on the floor of the thermal air flow measurement system 40 . Thus, when the center position and the orientation of the body 42 are input from the position data input unit 76, the positions of all the sensors can be determined by referring to the sensor relative position data 84.

  The storage unit 80 further stores measurement data 86. The measurement data 86 includes temperature sensor data 88, wind direction and wind speed data 90, thermo camera data 92, and position data 94. The temperature sensor data 88, the wind direction and velocity data 90, and the thermo camera data 92 are input from the temperature sensor 46, the anemometer 48, and the thermo camera 50 based on the instruction timing from the measurement instruction unit 74, respectively. Further, based on the input from the position data input unit 76, the position data 94 at the time of measuring each data is stored.

  The display processing unit 100 performs processing for displaying the measurement data 86 based on an instruction from the display instruction unit 78. The display processing unit 100 can also be constructed using general image display software. The display processing unit 100 includes an interpolation processing unit 102, a viewpoint processing unit 104, a mapping processing unit 106, and the like. The interpolation processing unit 102 performs processing to linearly or non-linearly interpolate data obtained from limited measurement points into set fine grid points. The viewpoint processing unit 104 sets the display range and the like according to the viewpoint instructed by the display instruction unit 78 and the like. Further, the mapping processing unit 106 performs processing of dropping measurement data into an image in accordance with the display mode set by the viewpoint processing unit 104. The image created by the display processing unit 100 is displayed on the display unit 110.

  Subsequently, the measurement operation of the thermal air flow measurement system 40 will be described with reference to FIG. FIG. 5 is a top view showing a state in which measurement is performed while moving the path 22c between the server rack groups 16, 18 of the data center 10 shown in FIG.

  FIG. 5 shows the temperature / air flow measurement system 40a at the measurement position immediately before indicated by a two-dot chain line, and the temperature / air flow measurement system 40b after moving to the current measurement position indicated by a solid line. This movement is performed by the measurer using the thermal airflow measurement system 40 pushing the thermal airflow measurement system 40 and moving it. When the measurer is in the vicinity of the thermal airflow measurement system 40, the disturbance of the air flow due to the presence of the measurer or the disturbance of the temperature due to the presence of the measurer occurs. However, in the data center 10, there is a large disturbance that can ignore the influence of the measurer, and the presence of the measurer does not matter. Similarly, the influence of the body 42 of the thermal air flow measurement system 40 or the influence of the sensor substrate 54 attached to the body 42, the battery 56, and the PC 60 can be ignored.

  After moving the temperature / air flow measurement system 40a, the measurer operates the application in the PC 60 and instructs the measurement from the measurement instruction unit 74 in the user input unit 70. Thus, data output from the temperature sensor 46 is stored as the temperature sensor data 88 in the storage unit 80 of the PC 60. However, the temperature measurement is performed at a timing taking into consideration the time constant at which the temperature sensor 46 follows the ambient temperature. In addition, data measured by the anemometer 48 is stored in the storage unit 80 as wind direction and wind speed data 90. Further, data measured by the thermo camera 50 is stored in the storage unit 80 as thermo camera data 92.

  The measurer further inputs the center position and the direction on the horizontal surface of the thermal air flow measurement system 40a through the position data input unit 76 at the timing of performing this measurement. The input is performed, for example, by dragging and moving the display of the thermal air flow measurement system 40 on the layout screen of the data center 10 displayed in the application. In this case, the PC 60 converts the drag position into coordinates at the data center 10 and stores it as position data 94.

  The measurement positions of the temperature sensor data 88 and the wind direction and wind speed data 90 can be obtained from the position data 94 and the sensor relative position data 84. As for the thermo camera data 92, at this stage, only the photographing position and the photographing direction of the thermo camera 50 are determined. Specifically, as illustrated in FIG. 5, the visual fields La and Ra of the thermo camera data 92 are determined. Then, the photographing range of the thermo camera data 92 can be determined by obtaining the plane where the field of view La, Ra and the server rack groups 16, 18 intersect with reference to the layout data 82.

  Subsequently, the measurer moves to the position of the temperature / air flow measurement system 40b, and inputs a measurement instruction and position data. The movement distance at this time is selected so that, for example, the measurement position by the temperature sensor 46 is appropriately separated from the previous measurement position. Further, the measurement position is set such that the range of the server rack groups 16 and 18 imaged by the new field of view Lb and Rb of the thermo camera 50 partially overlaps the previous imaging range. The measurer can operate the PC 60 to check whether the continuity of the thermo camera data 92 can be secured.

  The measurer can obtain data on the temperature and air flow of the data center 10 by moving the thermal air flow measurement system 40 to the entire data center 10. The measurement data can be obtained at different times, but in general, in the data center 10, air conditioning is stable, and even if there is an abnormality in the air conditioning, the condition continues, so measurements are taken simultaneously at the same time. Almost the same result is obtained.

  FIG. 6 is a diagram schematically showing the result of measurement of the temperature in the room in a test using the thermal air flow measurement system 40. As shown in FIG. Here, the room 122 imitated to the data center is displayed on the screen 120 of the display unit 110 of the PC 60. On the floor surface 122a of the room 122, the temperature distribution measured by the temperature sensor 46 installed at the lowest height level of the temperature / air flow measurement system 40 is displayed as an isopleth. A server rack 122 b is disposed near the center of the room 122. The measurement results of the thermo camera data 92 measured by the thermo camera 50 are superimposed and displayed on the server rack 122 b. Furthermore, in part of the room 122, an air flow 124 based on wind direction and wind speed data is vector-displayed by an arrow.

  In the upper left of the screen, buttons for changing this display are displayed. Specifically, a viewpoint operation button 126 for changing the viewpoint, a display method button 128 for changing the display method, and an information display button 130 for displaying information are displayed. The viewpoint operation button 126 is for changing the viewpoint of display. For example, the temperature distribution on the back side of the server rack 122b can be displayed by setting the viewpoint for displaying the room 122 to the back side of the screen. Further, by operating the display method button 128, it is possible to select display of only the temperature sensor data 88, display of only the wind direction / speed data 90, display of only the thermo camera data 92, or display of a combination thereof. . The information display button 130 is for displaying information such as measurement date and time, measurement location, and measurer's name.

  When the actual data center is measured by the thermal air flow measurement system 40, by performing temperature distribution display, it is possible to find out, for example, a portion where the temperature is high compared to the surroundings as an abnormal portion. As an example of the abnormality, there are a situation where a cold aisle gets hotter than expected, a situation where a warm aisle gets hotter than other warm aisles, and a situation where the intake surface of the server rack gets hot. At this time, it is possible to find out the cause of the abnormality by checking the fan on the intake surface of the server rack which has caused the abnormality, the state of the electronic device, the outlet of the cold air, and the like. The cause and spread of the abnormality can be clarified by displaying the information of the air flow. After the cause has been identified, measures will be taken such as repairing the faulty equipment and adding a fan.

  In the above description, as described with reference to FIG. 5, the temperature and air flow measurement system 40 stands still at each measurement location, and performs the measurement after the temperature sensor 46 is adjusted to the temperature of the location. It was assumed. In this measurement method, it is possible to increase the efficiency of measurement by setting the movement distance to a reasonably long interval. However, if the time during which the temperature sensor 46 adapts to the ambient temperature is earlier than the time required for moving a certain distance, measurement may be continuously performed while moving at that speed. In the case where the obtained measurement data is enormous, for example, the display process may be performed after the amount of data is reduced by performing an averaging operation or the like. In the case of continuous movement, it is necessary to continuously give position data of the measurement location, for example, by interpolating position information inputted by the measurer at appropriate intervals, the position of each time in between It can give data.

10 Data Center, 12 Walls, 14, 16, 18, 20 Server Rack Group, 14a, 16b, 18a, 20b Intake Surface, 14b, 16a, 18b, 20a Exhaust Surface, 22a, 22b, 22c, 22d, 22e Path, 24 , 26 air conditioner, 24b, 24c, 24d, 26a, 26b, 26d outlet, 26g duct, 26e, 26f inlet, 28 floor space, 30 ceiling space, 40, 40a, 40b temperature airflow measurement system 42 body , 44 wheels, 46, 46a, 46b, 46c, 46d temperature sensors, 48, 48a, 48b anemometers, 50, 50a, 50b, 50c thermo cameras, 52 whole sky cameras, 54 sensor boards, 56 batteries, 60 PCs, 70 User input unit 72 Layout input unit 74 Measurement instruction unit 76 Position data input unit 78 display instruction unit, 80 storage unit, 82 layout data, 84 sensor relative position data, 86 measurement data, 88 temperature sensor data, 90 wind direction and wind speed data, 92 thermo camera data, 94 position data, 100 display processing unit, 102 interpolation Processing unit, 104 viewpoint processing unit, 106 mapping processing unit, 110 display unit, 120 screen, 122 room, 122a floor, 122b server rack, 124 air flow, 126 viewpoint operation button, 128 display method button, 130 information display button.

Claims (7)

A device that measures the temperature and air flow in a data center, and
A body having a three-dimensional shape and capable of three-dimensional ventilation;
A plurality of temperature sensors that are three-dimensionally arranged and attached to the body and measure temperature;
An air flow sensor attached to the body and measuring an air flow;
Acquisition means for acquiring data of a position in the data center at which the temperature sensor and the air flow sensor perform measurement;
A wheel mounted at the bottom of the body,
At least two thermo cameras attached to the body and measuring the surface temperature of the surrounding object;
Equipped with
The at least two thermo-camera, temperature airflow measurement device characterized that you measure the surface temperature of the object in different directions. In the thermal air flow measurement device according to claim 1,
Comprising at least eight said temperature sensors;
7. A thermal air flow measuring device, characterized in that at least two of the temperature sensors are arranged at square positions at at least two height levels. In the thermal air flow measurement device according to claim 1 ,
Comprising at least four of the thermo cameras;
At least two of the thermo cameras are mounted at each of at least two height levels,
The thermal air flow measurement device according to claim 1, wherein at least two of the thermocameras at the same level are directed in directions different from each other by about 180 degrees. In the thermal air flow measurement device according to claim 1,
The height of the said thermal airflow measurement apparatus is 150 cm or more, The thermal airflow measurement apparatus characterized by the above-mentioned. In the thermal air flow measurement device according to claim 1,
The thermal air flow measuring device according to the present invention is characterized in that the short side in the horizontal direction is within 60 cm. A temperature and air flow measuring device according to claim 1;
A display device for displaying the spatial distribution of the temperature and air flow measured by the thermal air flow measurement device in association with the shape in the data center;
A thermal air flow measurement system comprising: In a data center, the path between the aligned electronic equipment or electronic equipment storage racks, at least one air flow sensor, a plurality of three-dimensionally arranged temperature sensors, and the surface of the surrounding object in different directions Moving at least two thermo cameras for measuring the temperature to measure the air flow distribution and the temperature distribution;
Acquiring a position in a data center at which the air flow sensor, the temperature sensor, and the thermo camera have measured;
An image generating step of generating a visualized image by superimposing or juxtaposing the temperature distribution and air flow distribution in the data center based on the obtained temperature data, air flow data, thermo camera data, and position data;
A method of generating a thermal air flow image in a data center, comprising: