JP2011075284A - Method and device for measuring temperature of large space - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method and device for measuring the temperature of a large space highly accurately measuring the indoor temperature distribution in a vertical direction in the large space in a building even in the presence of a horizontally moving obstacle in the building. <P>SOLUTION: The method for measuring the temperature of the large space has: hanging down in the large space 9 in the building 1 a band form 11 provided with a plurality of temperature sensors 12 arranged at predetermined intervals in the vertical direction; measuring the indoor temperature in the vertical direction in the large space 9 based on the information from the temperature sensors 12; and winding up the band form 11 on the upper side of the moving position of an overhead crane 8 in accordance with the crossing of the overhead crane 8 which moves horizontally in the building 1. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a method and apparatus for measuring a temperature in a large space capable of grasping an indoor temperature distribution in a vertical direction in a large space in a building, and in particular, avoiding interference with an obstacle moving horizontally in the building. The present invention relates to a method and apparatus for measuring a temperature in a large space.

  For example, in a factory that produces precision machinery and chemicals, it is necessary to control indoor temperature with high accuracy from the viewpoint of quality control. Particularly in a factory having a large space, the distance from the floor to the ceiling becomes long. Therefore, in order to maintain the large space uniformly at a constant temperature, it is necessary to accurately grasp the temperature in the vertical direction of the large space.

  2. Description of the Related Art Conventionally, a constant temperature air conditioner that uses a measurement computer to maintain the temperature in a constant temperature chamber with high accuracy is known (see, for example, Patent Document 1). There is also known an air conditioning system in which the discharge port of the discharge duct and the intake port of the intake box are arranged at regular intervals so that the crane can run between the discharge port of the discharge duct and the intake port of the intake box. (For example, refer to Patent Document 2). Furthermore, a system using infrared rays or the like is known as an example of a technique for measuring a temperature distribution in a room (see, for example, Patent Documents 3 and 4).

Japanese Patent Publication No. 7-9309 Japanese Patent No. 4017245 Japanese Patent Laid-Open No. 2006-226988 JP-A-6-34176

  By the way, in order to grasp the indoor temperature distribution in the vertical direction in the large space in the building with high accuracy, it is necessary to install a plurality of temperature sensing parts in the vertical direction in the large space. When there is an obstacle such as an overhead crane or an automatic conveyance device, the obstacle interferes with the temperature sensing unit, and the device may be damaged. In addition, when the temperature sensing unit is fixed in the height direction, the travel route of an aerial work vehicle or the like is also restricted. Conversely, in order to avoid interference between the obstacle and the temperature sensing part, if the temperature sensing part is not arranged on the traveling route of the overhead crane, the indoor temperature of the space portion located on the traveling route cannot be grasped, There arises a problem that the air conditioning control for maintaining the large space of the building uniformly at a constant temperature cannot be performed.

  Accordingly, the present invention provides a method and apparatus for measuring a temperature in a large space that can accurately grasp the indoor temperature distribution in the vertical direction in the large space in the building even when there is an obstacle moving in the horizontal direction in the building. The purpose is to provide.

  In order to achieve the above-mentioned object, the invention according to claim 1 suspends a belt-like body having a plurality of temperature sensing parts arranged at predetermined intervals in the vertical direction in a large space in a building, and The indoor temperature in the vertical direction in the large space is measured based on the information from the temperature sensing unit, and the belt is wound above the obstacle moving position in response to the crossing of the obstacle moving horizontally in the building. This is a method for measuring the temperature of a large space.

  According to the present invention, the indoor temperature in the vertical direction of the large space is measured by the plurality of temperature sensing units, and the vertical indoor temperature distribution in the large space can be accurately grasped. Further, when the obstacle moves in the building in the horizontal direction, the belt-like body is wound up above the position where the obstacle moves, and interference between the belt-like body and the obstacle is avoided.

  According to a second aspect of the present invention, a strip-like body that can be suspended in a large space in a building, and an indoor temperature in the vertical direction in the large space that is disposed at a predetermined interval in the vertical direction of the strip-like body are measured. A large space comprising a temperature sensing part, and a winding means for winding up the belt-like body above the moving position of the obstacle according to the crossing of the obstacle horizontally moving in the building. It is a temperature measurement device.

  According to a third aspect of the present invention, in the large space temperature measuring device according to the second aspect, a weight is attached to the lower end of the belt-like body, and the position of the temperature sensing portion attached to the weight is determined. It is characterized by recognizing the height of another temperature sensing part located above as a reference.

  According to a fourth aspect of the present invention, there is provided the temperature measuring device for a large space according to the second or third aspect, wherein the temperature sensing unit includes a temperature sensor that converts a room temperature into an electric signal, and the electric power from the temperature sensor. A signal is sent to the measurement control unit via a signal line fixed to the strip and a slip ring attached to the winding means.

  According to a fifth aspect of the present invention, in the temperature measuring device for a large space according to the second or third aspect, the temperature sensing unit is configured by a heat radiation plate, and the radiant heat from the heat radiation plate is transmitted via a thermography. The indoor temperature distribution is measured.

  In addition, in order to simultaneously measure the temperature on the floor side of the large space and the indoor temperature of the large space, the weight attached to the lower end of the strip can be lowered to the floor surface of the large space, The temperature sensor may be provided.

  According to the first and second aspects of the present invention, the belt-like body having a plurality of temperature sensing portions arranged at predetermined intervals in the vertical direction is suspended in a large space in the building. It becomes possible to accurately grasp the indoor temperature distribution in the vertical direction in a large space. Thereby, the large space in the building can be maintained at a constant temperature almost uniformly, and the temperature of machinery used in the building, products produced, etc. can be kept constant.

  According to invention of Claim 3, it can prevent that a strip | belt body loosens in the middle by the dead weight of the weight attached to the lower end of a strip | belt-shaped body, and can suspend a strip | belt body substantially linearly. In addition, since the height of other temperature sensing parts located above is recognized with reference to the position of the temperature sensing part to which the weight is attached, the indoor temperature at each position in the large space in the building can be accurately determined. I can grasp it.

  According to the invention described in claim 4, since the electric signal from the temperature sensor is sent to the measurement control unit via the slip ring, it is possible to avoid twisting of the signal line when winding the belt-like body. Thus, disconnection of the signal line due to twisting can be prevented, and the reliability of the temperature measuring device can be improved.

  According to the fifth aspect of the present invention, the temperature sensing part is constituted by the heat radiation plate, and the radiation temperature from the heat radiation plate is measured for the indoor temperature distribution through the thermography. A ring becomes unnecessary, and the configuration of the apparatus can be simplified.

It is a front view which shows the outline | summary of the temperature measurement method and apparatus of the large space concerning Embodiment 1 of this invention. It is a block diagram which shows the outline | summary of the temperature measurement apparatus used for the temperature measurement method of the large space of FIG. It is an enlarged front view of the strip | belt-shaped body used for the temperature measurement method of the large space of FIG. It is an enlarged front view of the weight provided in the lower end part of the strip | belt-shaped body of FIG. It is a wiring diagram which shows the connection relation of the control panel of the winding means in FIG. 2, and electric equipment. It is a related figure which shows the temperature sensor provided in the strip | belt-shaped body of FIG. 3, and its arrangement | positioning. It is a side view which shows the positional relationship of the winding means of FIG. 1, and an obstruction. It is sectional drawing which shows the temperature sensor provided in the floor side of the building of FIG. It is an enlarged plan view of the winding means of FIG. FIG. 10 is an enlarged right side view of the winding means of FIG. 9. It is an enlarged front view of the winding means of FIG. FIG. 10 is an enlarged left side view of the winding means of FIG. 9. It is an expanded sectional view of the slip ring attached to the winding means of FIG. FIG. 14 is an enlarged side view of the slip ring of FIG. 13. It is an expanded sectional view which shows the modification of the attachment position of the temperature sensor in the weight of FIG. It is a side view which shows the temperature measurement state of the large space using the weight of FIG. It is a front view which shows the outline | summary of the temperature measurement method and apparatus of the large space concerning Embodiment 2 of this invention. It is an enlarged front view of the strip | belt-shaped body used for the temperature measurement method and apparatus of the large space of FIG.

  Next, embodiments of the present invention will be described in detail with reference to the drawings.

(Embodiment 1)
1 to 16 show Embodiment 1 of the present invention. In FIG. 1, the code | symbol 1 has shown the building used as a production factory, for example. The building 1 is formed such that the ceiling 2 extends in the horizontal direction. On the left side of the building 1, a left side wall 3 that extends vertically from the ceiling 2 toward the floor F is formed. On the right side of the building 1, a right wall portion 4 that extends vertically from the ceiling portion 2 toward the floor surface F is formed. A large space 9 surrounded by the ceiling 2, the side walls 3, 4 and the floor surface F is formed in the building 1.

  A column 5 extending upward from the floor surface F is located on the left wall 3 side in the building 1. Similarly, a column 6 extending upward from the floor surface F is located on the right wall 4 side in the building 1. A traveling rail 7 for traveling an overhead crane 8 as an obstacle is laid on the top of each column 5, 6. The overhead crane 8 is a cargo handling machine for transporting equipment used in the building 1 and products to be produced. The overhead crane 8 can horizontally move in the east-west direction of the building 1 (in the direction of arrow B in FIG. 7) along the traveling rail 7. For example, the horizontal movement drive unit can be remotely operated from the ground side. ing.

  FIG. 7 shows a temperature measuring device 10 for grasping the temperature distribution in the vertical direction in the large space 9 in the building 1. The temperature measuring device 10 mainly has a strip 11, a temperature sensing unit 12, a weight 14, and a winding means 20. The temperature measuring device 10 can further include a signal processing unit 30 and a temperature distribution display control unit 34 shown in FIG.

  The belt-like body 11 is made of, for example, a synthetic resin having a high tensile strength, and is formed in a rewound film shape. As shown in FIGS. 3 and 10, the band 11 has a width W and a thickness E. The above-described materials are selected for the belt-like body 11 so that the extension due to the external force becomes as small as possible, and the extension by the own weight and the weight 14 is suppressed to a slight amount when the belt 11 is suspended. As a result, excessive tension is prevented from acting on the temperature sensing unit 12 and the signal line 13 described later. As shown in FIG. 7, the strip 11 can be wound and unwound in the direction of arrow A by the winding means 20.

  The belt-like body 11 is provided with a temperature sensor 12 as a temperature sensing part. As shown in FIG. 7, the temperature sensor 12 is disposed at a predetermined interval in the vertical direction of the surface 11 a of the strip 11. In the first embodiment, the measurement range of the indoor temperature by the temperature sensor 12 is set to 10 m in the vertical direction from the floor surface F. The interval H2 from the temperature sensor 12 of the weight 14 to the nearest temperature sensor 12 is set to 0.5 m, and the mounting intervals of the other temperature sensors 12 are set to 1 m as shown by H3 and H4. Yes. The temperature sensor 12 has a function of converting the room temperature in the large space 9 into an electrical signal, and is composed of, for example, a thermistor or a thermocouple. An electrical signal from the temperature sensor 12 is sent to the signal processing unit 30 via a signal line 13 fixed to the strip 11.

  As shown in FIG. 4, a weight 14 is attached to the lower end 11 b of the strip 11. The lower end 11 b of the belt-like body 11 is fixed to the weight 14 in a state of entering the inside of the weight 14 from the upper end surface 14 c of the weight 14. The weight 14 is made of, for example, neopropylene rubber as an elastic body. The weight 14 is formed in a columnar shape having a step, and the lower end portion 14a has a larger diameter than the upper end portion 14b. The weight 14 suppresses the slackness of the belt-like body 11 in the suspended state, and the weight is set so that the belt-like body 11 hangs down substantially in a straight line. The weight 14 is provided with a temperature sensor 12 positioned at the lowest position among the plurality of temperature sensors 12 provided on the belt-like body 11. The belt-like body 11 is controlled by the winding means 20 so that the weight 14 stops at the position of the height H1 (H1 = 1 m) from the floor surface F.

  Further, in the first embodiment, the temperature on the floor surface F side in the large space 9 is also measured. The temperature on the floor F side is measured for the following reason. When the temperature-controlled room is air-conditioned at a constant temperature, the heat and cold energy of the air-conditioned air is stored in the enclosure. Condensation may occur when the door is opened or closed, the draft is changed, or the temperature of the soil is changed. In addition, when the operation is not performed for 24 hours, the rise time until the room reaches the set temperature is also affected. Therefore, a pit Fa in which sand Fb is stored for measuring the temperature on the floor surface F side is formed immediately below the weight 14 on the floor surface F. The pit Fa is open to the large space 9, and a temperature sensor 12 for measuring the room temperature near the floor surface F is accommodated in the pit Fa. An electrical signal from the temperature sensor 12 accommodated in the pit Fa is sent to the signal processing unit 30. However, as will be described later, by providing the temperature sensor 12 on the bottom surface of the weight 14, the construction cost of the pit Fa can be reduced.

  The winding means 20 is provided in the vicinity of the ceiling part 2 of the building 1 at a position higher than the frame, here on the catwalk that is spanned. The hoisting means 20 is capable of winding the strip 11 upward and unwinding it downward, and has a function of avoiding interference between the overhead crane 8 moving horizontally in the building 1 and the strip 11. Yes. The winding means 20 has a rotating drum 21, a motor 22, and a slip ring 23 as shown in FIGS. The rotating drum 21 is accommodated in the frame 20 a of the winding means 20. The rotating drum 21 has a function of winding and unwinding the belt-like body 11, and is configured to be rotatable about an axis with respect to the frame 20a. The rotating drum 21 has a pair of flanges 21a disposed to face each other, and a winding groove 21b for winding the strip 11 is formed between the pair of flanges 21a.

  A motor 22 for rotating the rotary drum 21 is attached to one side surface of the frame 20a. The motor 22 includes an electromagnetic brake 22a as shown in FIG. The electromagnetic brake 22 a has a function of preventing the rotating drum 21 from rotating due to the weight of the strip 11 and the weight 14 when the rotation of the motor 22 is stopped. The motor 22 can be remotely operated by the operation device 27 of FIG.

  As shown in FIG. 5, the operating device 27 has a push button switch 27a for raising, a push button switch 27b for descending, and a push button switch 27c for stopping. The stop push button switch 27c has a function of stopping the winding or unwinding of the belt-like body 11 by the rotating drum 21 on the way. The operation signal from the operation device 27 is sent to a control panel 28 that controls the winding means 20 as shown in FIG. A stop lever 24 for preventing excessive winding of the strip 11 is attached to the lower end of the frame 20a in a swingable manner. When the belt-like body 11 is raised to a predetermined position, the stop lever 24 swings upward due to contact with the weight 14 and operates the upper limit switch 25 to stop the rotation of the motor 22. Yes.

  A slip ring 23 is attached to the other side surface of the frame 20a. The slip ring 23 is arranged on the same line as the rotation center of the rotary drum 21 and the motor 22. The slip ring 23 serves as a relay for sending a signal from the temperature sensor 12 provided on the belt-like body 11 to the signal processing unit 30 using a current collecting ring and a brush. The slip ring 23 includes a first contact portion 23a for transmitting a signal from the temperature sensor 12, a second contact portion 23b, and a third contact portion 23c. Further, the slip ring 23 has a fourth contact portion 23d and a fifth contact portion 23e forming an electric circuit provided with a limit switch 25 for restricting the lower limit of unwinding of the belt-like body 11.

  13 and 14 show details of the slip ring 23. The slip ring 23 has a rotating shaft 23 g connected to the rotating drum 21. The rotating shaft 23g is rotatably supported by a bearing portion 23h provided in the fixed case 23f. A plurality of current collecting rings 23j are attached to the fixed case 23f via insulators 23i. A plurality of signal lines 13 extending from the belt-like body 11 side are connected to each current collecting ring 23j. A swing arm 23k having a brush 23m at the tip is disposed on the outer periphery of each current collecting ring 23j. The brush 23m of the swing arm 23k is always in contact with the outer peripheral surface of the current collecting ring 23j. The swing arm 23k is electrically connected to the terminal 23n. An electric signal from the signal line 13 is sent to the signal processing unit 30 via the terminal 23n.

  Thus, the slip ring 23 rotates with the current collecting ring 23j integrally with the rotating drum 21, and the brush 23m of the swing arm 23k is always in sliding contact with the current collecting ring 23j. Is output to the terminal 23n through the current collecting ring 23j and the swing arm 23k.

  As shown in FIG. 2, the winding means 20 is arranged at two locations in the east-west direction of the building 1. That is, in the building 1 having the large space 9, it is difficult to grasp the indoor temperature distribution with high accuracy by measuring the indoor temperature at one location. Therefore, the strips 11 are used at two locations in the east-west direction of the building 1. The room temperature is measured. In the first embodiment, the indoor temperature in the north-south direction of the building 1 is also measured by a temperature sensor (not shown). The measurement of the indoor temperature in the vertical direction of the large space in the north and south does not use the strip 11, but for example, five temperature sensors each provided in the height direction of the left side wall 3 and the right side wall 4 of the building 1. (Not shown). The measurement data of the indoor temperature in the north-south direction is input to the data logger 32 shown in FIG.

  As shown in FIG. 2, the electrical signal from the temperature sensor 12 provided in the belt-like body 11 is transmitted through the slip ring 23 of the winding means 20 and the relay box 29 of FIG. To be sent to. Here, the electrical signal from the temperature sensor 12 is transferred to the communication control unit 31 by data transfer called, for example, 1-Wire (registered trademark). This 1-Wire can transfer data by using only a ground line and one signal line, and this makes it possible to reduce the number of contacts of the slip ring 23. In the first embodiment, ten temperature sensors 12 are provided in one belt-like body 11, and the number of signal lines 13 is originally 20 in total. However, by the data transfer by 1-Wire, The number of signal lines 13 can be three.

  A personal computer (PC) 34 is connected to the communication control unit 31 and the data logger 32 of the signal processing unit 30 via a concentrator 33 called a HUB. The communication control unit 31 and the data logger 32 can communicate with the personal computer 34 via the line concentrator 33. The personal computer 34 displays an image of the indoor temperature distribution in the large space 9 of the building 1 based on signals from the communication control unit 31 and the data logger 32. From the personal computer 34, RGB signals for image reproduction of the room temperature distribution by a large liquid crystal display or the like can be output.

  FIG. 6 shows measured temperatures based on information from the temperature sensors 12 of the strips 11 provided on the west side and the east side of the building 1. As described above, ten temperature sensors 12 are provided in the west band 11, and ten temperature sensors 12 are similarly provided in the east band 11. Sensor IDs (N1 to N20), which are identification codes, are assigned to the temperature sensors 12 on the west side and the east side so that signals can be identified in the communication control unit 31. The personal computer 34 displays the measured temperature (T1 to T20) from each temperature sensor position (1-1 to 2-10), and the large space 9 is based on the measured temperature (T1 to T20). The indoor temperature distribution in can be grasped.

  Next, a method and an operation for measuring a temperature in a large space using the temperature measurement device 10 according to the first embodiment will be described.

  As shown in FIG. 7, the belt-like body 11 usually hangs down from the vicinity of the ceiling portion 2 toward the floor surface F, and the weight 14 attached to the lower end portion of the belt-like body 11 has a height H1 ( H1 = 1m). In this state, the belt-like body 11 hangs substantially linearly without slacking due to the weight of the weight 14. Therefore, the indoor temperature at each position in the vertical direction in the large space 9 is accurately measured by the ten temperature sensors 12 provided in the strip 11.

  Here, when the overhead crane 8 is used for transporting the equipment used in the building 1 or the product to be produced, in order to avoid interference between the overhead crane 8 and the belt-like body 11, The body 11 is wound up by the winding means 20. As shown in FIG. 5, the belt-like body 11 is wound up by pressing the ascending push button switch 27 a of the operation device 27. In other words, when the push button switch 27 a for raising is pressed, the motor 22 is activated and the rotating drum 21 is rotated in the winding direction, and the strip 11 is wound up by the rotating drum 21. In a state in which the belt-like body 11 is wound up by a predetermined amount, the weight 14 attached to the lower end portion of the belt-like body 11 comes into contact with the stop lever 24 and operates the upper limit switch 25 to automatically rotate the motor 22. Stop.

  In the state where the belt-like body 11 is wound up to the upper limit, as shown in FIG. 7, the weight 14 is positioned above the overhead crane 8, and even if the overhead crane 8 travels toward the belt-like body 11, Interference between the overhead crane 8 and the strip 11 is reliably avoided. After the overhead crane 8 passes directly below the belt-like body 11, the rotary drum 21 is rotated in the direction opposite to that when the operator presses the push button switch 27b for lowering the operating device 27. Unwinds and begins to hang toward the floor F. Then, when the position of the weight 14 reaches the height H1 from the floor surface F, the limit switch 25 shown in FIG. 5 operates, the rotation of the motor 22 that drives the rotary drum 21 stops, and the belt-like body 11 moves to this position. To stop automatically.

  As described above, the strip 11 having the plurality of temperature sensors 12 disposed at predetermined intervals in the vertical direction is suspended in the large space 9 in the building 1. It becomes possible to accurately grasp the indoor temperature distribution in the direction. Therefore, by appropriately controlling an air conditioner (not shown) that air-conditions the building 1 based on the measured room temperature distribution, the large space 9 can be maintained almost uniformly and used in the building 1. The temperature of machinery and products produced can be kept constant.

  Moreover, it can prevent that the strip | belt-shaped body 11 slacks on the way with the dead weight of the weight 14 attached to the lower end of the strip | belt-shaped body 11, and can suspend the strip | belt-shaped body 11 substantially linearly. And since the height of the other temperature sensor 12 located upwards is recognized on the basis of the position of the temperature sensor 12 to which the weight 14 is attached, the room temperature at each position in the large space 9 in the building 1 is recognized. Can be grasped accurately.

  That is, as shown in FIG. 6, since the temperature sensor 12 is provided in each of the sensor positions 1-1 to 1-10 in the belt-like body 11 of the west winding means 20, the sensor positions 1-1 to 2 are provided. It becomes possible to accurately grasp the measurement temperatures T1 to T10 corresponding to −10. As described above, the distance between the temperature sensor 12 of the weight 14 provided at the sensor position 1-1 and the nearest temperature sensor 12 provided at the sensor position 1-2 is set to 0.5 m. Since the mounting interval of the temperature sensor 12 at the upper sensor positions 1-3 to 10 is set to 1 m, in a state where the belt-like body 11 is suspended in a straight line, the room of a predetermined height in the large space 9 It is possible to accurately grasp the temperature. Similarly, in the east side winding means 20, as shown in FIG. 6, it is possible to accurately grasp the measured temperatures T1 to T10 corresponding to the sensor positions 2-1 to 2-10.

  Furthermore, as shown in FIG. 5, since the electrical signal from the temperature sensor 12 is sent to the measurement control unit 30 via the slip ring 23, the signal line 13 is twisted when the strip 11 is wound. This can be avoided, the disconnection of the signal line 13 due to twisting can be prevented, and the reliability of the temperature measuring device 10 can be improved.

  15 and 16 show a modification of the mounting position of the temperature sensor 12 on the weight 14. In FIG. 7, the weight 14 is configured to be stationary at the position of the height H <b> 1 from the floor surface F. However, in FIGS. Yes. The temperature sensor 12 located at the lowest position among the plurality of temperature sensors 12 is attached to the lower surface 14d of the weight 14 as shown in FIG. The temperature sensor 12 plays a role of measuring the temperature on the floor surface F side in the large space 9.

  On the lower surface 14 d of the weight 14, a ring-shaped protective packing 14 e that surrounds the outer periphery of the temperature sensor 12 is provided. When the weight 14 is landed on the floor surface F, the temperature sensor 12 is slightly lifted from the floor surface F by the protective packing 14e, and direct interference with the floor surface F is avoided. Thus, the temperature sensor 12 is attached to the lower surface 14d side of the weight 14, and the weight 14 is landed on the floor surface F, so that the pit Fa as shown in FIG. It becomes possible to measure the indoor temperature.

(Embodiment 2)
15 and 16 show a second embodiment of the present invention. The difference between the second embodiment and the first embodiment is only the structure of the temperature sensing part, and the other parts are the same as in the first embodiment. Therefore, the same parts as those in the first embodiment are denoted by the same reference numerals. The description of the corresponding part is omitted. The second embodiment has an advantage that a system can be easily constructed in a facility that does not require the same accuracy as the first embodiment.

  As shown in FIG. 16, a heat radiation plate 40 as a temperature sensing part is provided on the surface 11 a of the strip 11. The heat radiation plate 40 generates radiant heat according to the room temperature of the large space 9 of the building 1 and is provided at a predetermined interval H in the vertical direction of the strip 11 as in the first embodiment. ing. In the building 1, a thermography 41 for measuring the radiant heat of the heat radiation plate 40 provided on the strip 11 is arranged.

  As is well known, the thermography 41 analyzes infrared rays emitted from an object and displays a heat distribution as an image. Since the amount of radiation of infrared rays increases as the temperature rises, changes in the temperature of the measurement object can be visualized as changes in the amount of infrared rays. In the second embodiment, the thermography 41 is disposed in the vicinity of the column 6 on the right side wall 4 side, but may be disposed in the vicinity of the traveling rail 7 of the overhead crane 8 or the like. In addition, the heat distribution by the thermography 41 may be directly observed through an image displayed on the thermography 41, but may be viewed through a remote display device (not shown).

  In the second embodiment configured as described above, it is not necessary to fix the signal line 13 to the strip 11 and it is not necessary to provide the slip ring 23 on the winding means 20. Can be simplified.

  The embodiment of the present invention has been described in detail above, but the specific configuration is not limited to the above-described embodiment, and even if there is a design change or the like without departing from the gist of the present invention, It is included in this invention. For example, although the belt-like body 11 is made of a film-like synthetic resin, it may have a structure in which fibers having high tensile strength are woven into a belt-like shape. Further, although the wired temperature sensor 12 is used as the temperature sensing unit, the temperature sensor 12 may be configured as an ultra-compact wireless temperature sensor. Then, the measurement data from each temperature sensor 12 may be displayed on a large display.

  Further, in the first embodiment, the belt-like body 11 is wound and unwound by pressing the push button switches 27a and 27b of the operation device 27. However, the overhead crane 8 approaches the belt-like body 11. It is good also as a structure which detects to do with an ultrasonic sensor etc. and rolls up the strip | belt-shaped body 11 automatically based on the signal from an ultrasonic sensor.

1 Building 2 Ceiling 8 Overhead Crane (obstacle)
9 Large space 10 Temperature measuring device 11 Band 12 Temperature sensor (temperature sensing part)
DESCRIPTION OF SYMBOLS 13 Signal line 14 Weight 20 Winding means 21 Rotating drum 22 Motor 23 Slip ring 25 Lower limit switch 26 Upper limit switch 27 Operator 30 Signal processing part 31 Communication control part 34 Personal computer 40 Thermal radiation plate (temperature sensing part)
41 Thermography F Floor

Claims (5)

  A band-shaped body having a plurality of temperature sensing parts arranged at predetermined intervals in the vertical direction is suspended in a large space in the building, and the indoors in the vertical direction in the large space are based on information from the temperature sensing part. A temperature measurement method for a large space, characterized in that the temperature is measured and the belt-like body is wound up above the moving position of the obstacle according to the crossing of the obstacle moving horizontally in the building. A strip that can be suspended in a large space in the building,
A temperature sensing unit that is arranged at a predetermined interval in the vertical direction of the strip and measures the indoor temperature in the vertical direction in the large space; and
Hoisting means for winding up the belt-like body above the moving position of the obstacle according to the crossing of the obstacle moving horizontally in the building;
A large space temperature measuring device characterized by comprising:   A weight is attached to the lower end of the belt-like body, and the height of another temperature sensing part positioned above is recognized with reference to the position of the temperature sensing part attached to the weight. Item 3. The temperature measurement device for a large space according to Item 2.   The temperature sensing unit is composed of a temperature sensor that converts room temperature into an electrical signal, and the electrical signal from the temperature sensor is measured via a signal line fixed to the belt and a slip ring attached to the winding means. The temperature measuring device for a large space according to claim 2 or 3, wherein the temperature measuring device is sent to a control unit.   4. The temperature measurement of a large space according to claim 2, wherein the temperature sensing part is constituted by a heat radiation plate, and the indoor temperature distribution is measured through thermography of the radiant heat from the heat radiation plate. apparatus.

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