WO2021100656A1

WO2021100656A1 - Radiation temperature measurement system, radiation temperature measurement program, radiation temperature measurement method, and mobile terminal

Info

Publication number: WO2021100656A1
Application number: PCT/JP2020/042613
Authority: WO
Inventors: 佳世森長; 有里山▲崎▼; 友里大倉; 雅幸大角
Original assignee: 株式会社堀場製作所
Priority date: 2019-11-22
Filing date: 2020-11-16
Publication date: 2021-05-27
Also published as: TW202138770A; JPWO2021100656A1

Abstract

The present invention makes it easier to grasp a temperature measurement area, not only during measurement but also after measurement, and improves usability for a user. The present invention comprises: a radiation temperature measurement unit 2 that measures the temperature of a measurement object W in a contactless manner; an imaging unit 304 that captures an image of the measurement object W; a display control unit 31 that superimposes a measurement field of view F of the radiation temperature measurement unit 2 onto a captured image P of the imaging unit 304 and displays the result on a screen S, the measurement field of view F depending on the distance to the measurement object W; and a measurement result storage unit 32 that stores the measured temperature of the radiation temperature measurement unit 2 together with the captured image P on which the measurement field of view F is superimposed.

Description

Radiation temperature measurement system, radiation temperature measurement program, radiation temperature measurement method and mobile terminal

The present invention relates to a radiation temperature measurement system, a radiation temperature measurement program, a radiation temperature measurement method, and a mobile terminal.

As a conventional radiation thermometer, as shown in Patent Document 1, an infrared sensor that detects infrared radiation energy radiated from a temperature object to be measured (object to be measured) and a laser that irradiates the temperature object with laser light. Some of them are provided with an irradiation unit, and a laser from the laser irradiation unit is configured to indicate the detection area of the infrared sensor in a region surrounded by, for example, a laser beam.

Japanese Unexamined Patent Publication No. 2012-177560

However, although the above radiation thermometer can grasp the detection area of the temperature measurement during the measurement, it cannot grasp the detection area of the measured temperature after the measurement. Then, there is a problem that problems occur in data management after measurement, processing on the object to be measured, and the like, which is not easy for the user to use.

Therefore, the present invention has been made to solve the above problems, and mainly improves the usability of the user by making it easier to grasp the temperature measurement area (measurement field of view) not only during the measurement but also after the measurement. This is an issue.

That is, in the radiation temperature measurement system according to the present invention, the radiation temperature measuring unit that measures the temperature of the measurement object in a non-contact manner, the imaging unit that images the measurement object, and the distance to the measurement object are described. A display control unit that superimposes the measurement field of view of the radiation temperature measurement unit on the image captured by the image pickup unit and displays it on the screen, and stores the measurement temperature of the radiation temperature measurement unit together with the image captured image on which the measurement field of view is superimposed. It is characterized by including a measurement result storage unit.

In such a case, the measurement field of view of the radiation temperature measurement unit according to the distance to the object to be measured is displayed on the screen overlaid on the captured image, so that the measurement field of view of the radiation temperature measurement unit during measurement is displayed. (Temperature measurement area) can be grasped on the screen. Further, since the measurement temperature of the radiation temperature measuring unit is stored together with the captured image on which the measurement field of view is superimposed, the measurement field of view (temperature measurement area) can be grasped even after the measurement. As a result, the usability of the user can be improved. In addition, it is possible to leave a measurement result (evidence) that allows the measurement field of view to be grasped.

In order to make the measurement field of view displayed on the screen accurate, the relationship between the distance calculation unit that calculates the distance to the measurement object by the radiation temperature measurement system and the distance and the measurement field of view in the radiation temperature measurement unit. The display control unit further includes a relationship information storage unit that stores the relationship information indicating the above, and the display control unit is based on the distance to the measurement object obtained by the distance calculation unit and the relationship information, and the radiation temperature. It is desirable to obtain the measurement field of view of the measuring unit and display the obtained measurement field on the screen by superimposing it on the captured image.

In order to make it easier to grasp the measurement temperature together with the measurement field of view, it is desirable that the display control unit displays the measurement temperature of the radiation temperature measurement unit on the screen in association with the measurement field of view.

When the radiation temperature measuring unit measures the average temperature in the measurement field of view, it is even more important to display the area of the measurement field of view. In the case of this configuration, the effect of the present invention becomes more remarkable.

It is desirable that the display control unit superimposes the measurement temperature and the measurement field of view of the radiation temperature measurement unit acquired at each of a plurality of locations on one of the captured images and displays them on the screen. With this configuration, the usability of the user can be improved by displaying the measurement results at a plurality of locations in one captured image.

In the radiation temperature measurement system of the present invention, in order to further improve usability, it is possible to switch between a batch measurement mode in which a single temperature measurement is performed and a continuous measurement mode in which a plurality of temperature measurements are continuously performed. It is desirable to do. In this case, in the continuous measurement mode, it is desirable that the display control unit displays a graph showing the time course of the measurement temperature of the radiation temperature measurement unit on the screen.

In order to make the radiation temperature measuring system portable and improve usability, the imaging unit and the display control unit are provided on the mobile terminal, and the radiation temperature measuring unit is wired or wirelessly provided on the mobile terminal. It is desirable to be connected so that it can communicate with.

When calculating the distance to the object to be measured using the image captured by the imaging unit, if the relative position between the radiation temperature measuring unit and the imaging unit changes, the radiation temperature displayed on the screen. A complicated calculation is required to obtain the measurement field of view of the measuring unit. Therefore, it is desirable that the relative positions of the radiation temperature measuring unit and the imaging unit are fixed. If the relative positions of the radiation temperature measuring unit and the imaging unit are fixed in this way, the positional relationship between the radiation temperature measuring unit and the imaging unit can be used, for example, by calibrating before the start of measurement. The measurement field of view of the radiation temperature measuring unit displayed on the screen can be made accurate.

Further, the radiation temperature measurement program according to the present invention is a radiation used in a radiation temperature measurement system including a radiation temperature measuring unit that measures the temperature of a measurement object in a non-contact manner and an imaging unit that images the measurement object. In the temperature measurement program, a display control unit that superimposes the measurement field of view of the radiation temperature measurement unit according to the distance to the measurement object on the image captured by the image pickup unit and displays it on the screen, and the measurement field of view. It is characterized in that the computer is provided with a function as a measurement result storage unit for storing the measurement temperature of the radiation temperature measurement unit together with the captured image on which the is superimposed.

Further, in the radiation temperature measuring method according to the present invention, the temperature of the object to be measured is measured by the radiation temperature measuring unit in a non-contact manner, the object to be measured is imaged by the imaging unit, and the distance to the object to be measured is adjusted. The measurement field of view of the radiation temperature measuring unit is superimposed on the image captured by the imaging unit and displayed on the screen, and the measured temperature of the radiation temperature measuring unit is stored in the memory together with the captured image on which the measurement field of measurement is superimposed. It is characterized by that.

Further, the mobile terminal used for the radiation temperature measurement according to the present invention is a mobile terminal that acquires temperature information measured from a radiation temperature measuring unit that measures the temperature of a measurement object in a non-contact manner, and the measurement object is measured. It is characterized by including an imaging unit for imaging and a display control unit that superimposes the measurement field of view of the radiation temperature measuring unit according to the distance to the measurement object on the captured image of the imaging unit and displays it on the screen. And.

According to the present invention configured in this way, it is possible to easily grasp the temperature measurement area (measurement field of view) not only during the measurement but also after the measurement, and the usability of the user can be improved.

It is a perspective view which shows typically the whole structure of the radiation temperature measurement system in one Embodiment of this invention. It is a schematic diagram which shows the structure of the radiation temperature measuring part of the same embodiment. It is a figure which shows the physical structure of the mobile terminal of the same embodiment. It is a functional block diagram of the mobile terminal of the same embodiment. It is a figure which shows an example (batch measurement mode) of the screen display by the display control unit of the same embodiment. It is a figure which shows an example (batch measurement mode) of the screen display by the display control unit of the same embodiment. It is a figure which shows an example (continuous measurement mode) of the screen display by the display control unit of the same embodiment. It is a figure which shows an example of the screen display by the display control unit of the same embodiment ((1) when it exceeds the upper limit value, (2) when it falls below a lower limit value). It is a perspective view which shows typically the whole structure of the radiation temperature measurement system in the modified embodiment. It is a figure which shows an example of the screen display by the display control part of the modification embodiment. It is a front view, the back view and the right side view of the radiation temperature measurement system in the modification embodiment. It is a front view and a plan view of the 2nd fixed part in a modification embodiment.

100 ・・・ Radiation temperature measurement system W ・・・ Measurement object 2 ・・・ Radiation temperature measurement unit 3 ・・・ Mobile terminal 304 ・・・ Imaging unit F ・・・ Measurement field P ・・・ Captured image 31 ・・・ Display control unit 32 ・・・ Measurement result storage unit 33 ・・・ Distance calculation unit 34 ・・・ Relationship information storage unit G ・・・ Graph

Hereinafter, the radiation temperature measurement system 100 according to the embodiment of the present invention will be described with reference to the drawings.

<1. Equipment configuration of radiation temperature measurement system>
The radiation temperature measurement system 100 of the present embodiment measures the surface temperature of the measurement object W in a non-contact manner and manages the temperature data. As shown in FIG. 1, the surface temperature of the measurement object W is measured. It includes a radiation temperature measuring unit 2 for non-contact measurement, and a mobile terminal 3 to which the radiation temperature measuring unit 2 is communicably connected by wire or wirelessly. In FIG. 1, they are connected by a communication cable K. Here, the relative positions of the radiation temperature measuring unit 2 and the mobile terminal 3 are fixed by the fixing member 4. Further, the radiation temperature measuring unit 2 and the mobile terminal 3 can be operated as one by operating the fixing member 4.

As shown in FIG. 2, the radiation temperature measuring unit 2 has an infrared detecting unit 21 that detects infrared rays emitted from the measuring object W and a surface of the measuring object based on the amount of infrared rays detected by the infrared detecting unit 21. It has a temperature calculation unit 22 for calculating the temperature.

The infrared detection unit 21 includes a sensor element 211 for detecting infrared rays such as a thermopile, an optical system 212 arranged in front of the sensor element 211, and a housing 213 for accommodating the sensor element 211 and the optical system 212. It is a thing.

The sensor element 211 is a thermal type that detects a temperature change when absorbing infrared rays as a change in electromotive force, and here, a thermopile in which a large number of thermocouples are arranged in series to form a thin film is used. The sensor element 211 may be of another thermal type such as a porometer or a pyroelectric type, or may be of a quantum type instead of a thermal type.

The optical system 212 is composed of a lens 212a, an aperture 212b, etc. provided in front of the sensor element 211, and defines a solid angle (viewing angle) of infrared rays incident on the sensor element 211 from the outside, and thus measures. It defines the field of view.

The temperature calculation unit 22 is composed of electric circuits (not shown) such as a buffer, an amplifier, an AD converter, a CPU, and a memory, and the CPU cooperates with peripheral devices according to a program stored in the memory. It exerts a function of calculating the surface temperature of the measurement target W based on the value of the detection signal output from the sensor element 211. Specifically, the temperature calculation unit 22 calculates the average temperature in the measurement field of view defined by the optical system 212.

The mobile terminal 3 is, for example, a smartphone, a tablet terminal, or the like, and as shown in FIG. 3, the physical configuration thereof includes a CPU 301, for example, a memory 302 such as a ROM and a RAM, an input / output interface (communication interface) 303, and an imaging unit 304. It has a display 305, a GPS receiver 306, and the like. Here, the imaging unit 304 acquires an image under the control of the CPU 301. For example, a CCD image sensor in which charge coupling elements (CCDs) are arranged in a two-dimensional array and light receiving elements are arranged in an array. A CMOS image sensor or the like can be used. The image pickup unit 304 may have a zoom function or a flash function. In addition, it may have a light amount adjusting function. Further, as the imaging unit 304, not only the out-camera provided on the back side of the mobile terminal 3 but also the in-camera provided on the display side of the mobile terminal 3 may be provided so that they can be switched. ..

Then, in the mobile terminal 3, the CPU 301 cooperates with the peripheral device according to the radiation temperature measurement program stored in the memory 301, and as shown in FIG. 4, the display control unit 31, the measurement result storage unit 32, and the distance calculation unit 33, it exerts a function as a relational information storage unit 34 and the like.

As shown in FIG. 5, the display control unit 31 displays the captured image P captured by the imaging unit 304 on the screen S of the display 305, and the radiation temperature measuring unit 2 according to the distance to the measurement object W. The measurement field of view F of the above is superimposed on the captured image P of the imaging unit 304 and displayed on the screen S. Here, the measurement field of view F is directly shown by a circular shape, but the measurement field of view F may be indirectly shown by displaying both ends of the measurement field of view F at two points. At the time of imaging by the imaging unit 304, there is a possibility of camera shake if the imaging button provided on the mobile terminal 3 is pressed. For example, the imaging unit 304 may be provided with a timer function. By providing the timer function, it is possible to prevent camera shake at the timing of pressing the image pickup button.

Further, the display control unit 31 displays the measurement temperature of the radiation temperature measurement unit 2 on the screen S in association with the measurement field of view F. In FIG. 5, as an example, the displayed measurement field of view F is displayed in the measurement result display column S1 connected by a line such as a straight line, but in addition, the measurement result display displayed by a blowout from the measurement field of view F. Any display mode that can be seen to be related to the measurement field of view F, such as the configuration displayed in column S1, may be used. In the measurement result display column S1, in addition to the measurement temperature in the measurement field F, for example, the measurement date and time (year, month, day, time), the field diameter of the measurement field, the distance to the measurement object W, the measurement position information, and so on. Alternatively, the position information and the like of the mobile terminal 3 can be displayed.

Here, the distance calculation unit 33 and the relationship information storage unit 34 are involved in displaying the measurement field of view F.
The distance calculation unit 33 calculates the distance from the image pickup unit 304 to the measurement object W from the image captured image P captured by the image pickup unit 304. The distance calculation unit 33 may be of a method that can calculate the distance without using the captured image P of the image pickup unit 304. For example, another sensor may be used to calculate the distance by transmitting an electromagnetic wave such as a radio wave or light and receiving a radio wave bounced off from the measurement object W.

Further, the relational information storage unit 34 stores relational information (for example, data such as a relational table or a relational expression) indicating the relationship between the distance in the radiation temperature measuring unit 2 and the visual field diameter of the measurement field of view. As shown in FIG. 4, this relational information includes, for example, the distance from the radiation temperature measuring unit 2 (l1, l2, l3, ...) And the visual field diameter (φ1, φ2) of the measuring field F corresponding to each distance. , Φ3, ...). This related information is determined based on the optical system 212 and the like of the radiation temperature measuring unit 2.

Then, the display control unit 31 obtains the visual field diameter of the measurement visual field F of the radiation temperature measurement unit 2 based on the distance to the measurement object W obtained by the distance calculation unit 33 and the above-mentioned relationship information. The obtained measurement field of view F is superimposed on the captured image P and displayed on the screen S. Here, the center of the measurement field of view F is set so as to coincide with the center axis of the measurement field of view of the radiation temperature measuring unit 2.

The measurement result storage unit 32 stores the captured image P on which the measurement field of view F is superimposed and the data indicating the measurement temperature of the radiation temperature measurement unit 2. In addition, the measurement result storage unit 32 also stores the measurement date and time (year, month, day, time) and the visual field diameter of the measurement field of view. Here, the timing at which the measurement result storage unit 32 stores the measurement result is the timing at which the image pickup button B1 of the mobile terminal 3 is pressed. The superimposed image such as the captured image P, the measurement field of view F, and the measurement temperature displayed on the screen S of the display 305 at the timing when the image pickup button B1 is pressed is stored as the measurement result image. In addition to the measurement result image, the measurement result storage unit 32 includes the measurement temperature, the measurement date and time (year, month, day, time), the viewing field diameter of the measurement field, the distance to the measurement object W, the measurement position information, or the measurement result storage unit 32. , Each data such as the position information of the mobile terminal 3 is also stored. The data indicating the measurement result image or the like stored in the measurement result storage unit 32 can be displayed on the screen S of the display 305 by the display control unit 31 after the measurement.

In this way, the measurement result storage unit 32 stores the measurement result images acquired at each of the plurality of locations. Then, as shown in FIG. 6, the display control unit 31 may superimpose the measurement temperature and the measurement field of view F of the radiation temperature measurement unit 2 acquired at each of the plurality of locations on one captured image P and display it on the screen S. it can. At this time, one representative captured image P in which a plurality of measurement temperatures and measurement fields of view F are overlapped can be appropriately selected. In FIG. 6, a plurality of measurement result images acquired on the same day are superimposed and displayed, but a plurality of measurement result images acquired on different days can also be superimposed and displayed. In addition, unnecessary measurement results can be deleted from a plurality of measurement results displayed on one captured image P. For example, the measurement result display field S1 displaying unnecessary measurement results can be deleted by swiping off the screen. It is also possible to delete all the measurement results being displayed at once.

Further, the radiation temperature measurement system 100 of the present embodiment can switch between a batch measurement mode in which a single temperature measurement is performed at each location and a continuous measurement mode in which a plurality of temperature measurements are continuously performed at one location. It is configured. The batch measurement mode is as described above.

As shown in FIGS. 5 to 7, the display control unit 31 displays switching buttons B2 to B4 for switching between the batch measurement mode and the continuous measurement mode on the screen S of the display 305. Here, the batch measurement mode can further switch between the single point measurement mode and the multipoint measurement mode, and the display control unit 31 also displays those buttons B2 and B3. As shown in FIG. 5, the single-point measurement mode is a mode in which the measurement result of one location is displayed on one captured image P, and the multi-point measurement mode is a mode in which one captured image is displayed as shown in FIG. In this mode, the measurement results (measurement temperature and measurement field of view F) at a plurality of locations are displayed on P. Then, when the user selects by pressing the switching button B2 or the like, the radiation temperature measurement system 100 switches to the single point measurement mode, and when the user selects by pressing the switching button B3 or the like, the radiation temperature measurement system 100 switches to the multipoint measurement mode. When the switch is made and the user selects by pressing the switch button B4 or the like, the radiation temperature measurement system 100 switches to the continuous measurement mode.

In the continuous measurement mode, the radiation temperature measurement system 100 may automatically measure the measurement temperature at regular time intervals where the setting can be changed. Further, as shown in FIG. 7, the display control unit 31 further displays a graph G showing the time-dependent change of the measurement temperature of the radiation temperature measurement unit 2 on the screen S. In the present embodiment, the display control unit 31 superimposes the graph G on the captured image P and displays it on the screen S. Here, by setting the upper limit value and the lower limit value of the measurement temperature in advance, as shown in FIG. 8, when (1) the upper limit value is exceeded and (2) the lower limit value is exceeded, respectively. It is possible to change the display mode such as the color of a part of the screen (for example, the measurement result display column S1), display a notification, or emit a notification sound. It is also possible to set to automatically take a screenshot when the upper limit value is exceeded or the lower limit value is exceeded. In addition, when the measurement temperature exceeds the upper limit value or falls below the lower limit value, it may be configured to shoot and record a moving image for a predetermined time before and after that time (for example, 5 seconds before and after).

<2. Effect of this embodiment>
According to the radiation temperature measurement system 100 of the present embodiment configured in this way, the measurement field F of the radiation temperature measurement unit 2 according to the distance to the measurement object W is displayed on the screen S over the captured image P. Therefore, the measurement field F (temperature measurement area) of the radiation temperature measurement unit 2 can be grasped on the screen S during the measurement. Further, since the measurement temperature of the radiation temperature measuring unit 2 is stored together with the captured image P on which the measurement field F is superimposed, the measurement field F (temperature measurement region) can be grasped even after the measurement. As a result, the usability of the user can be improved. In addition, it is possible to leave a measurement result (evidence) that allows the measurement field of view to be grasped.

<3. Deformation embodiment>
The present invention is not limited to the above embodiment.

In the above embodiment, it has been described that the measurement field of view F of the radiation temperature measuring unit 2 is superimposed on the captured image P of the imaging unit 304 and displayed on the screen S. Here, the infrared detection unit 21 in the radiation temperature measuring unit 2 and the imaging unit 304 in the mobile terminal 3 that generates the captured image P are arranged at different positions as shown in FIG. Therefore, as in the above embodiment, in order to superimpose the measurement field of view F on the captured image P of the imaging unit 304 and display it on the screen S, infrared detection by a calibration function as described below is performed. It may be necessary to correct the positional deviation between the unit 21 and the imaging unit 30. In the following modified embodiments, other embodiments including a calibration function will be described.

For example, the radiation temperature measurement system may be configured to calculate the measurement field of view F in consideration of the positional deviation between the image pickup unit 304 and the radiation temperature measurement unit 2 (for example, the difference in the distance from the measurement object W). good. In addition to correcting the distance calculated by the distance calculation unit 33, the relational information stored in the relational information storage unit 34 may be corrected.

Further, the radiation temperature measurement system may use a laser beam to correct the positional deviation between the image pickup unit 304 and the radiation temperature measurement unit 2. For example, when correcting the positional deviation using laser light, the position and angle at which the radiation temperature measuring unit 2 is provided are changed so that the measurement target on the image captured by the imaging unit 304 of the mobile terminal 3 is used. The imaging region (for example, the central portion of the captured image P) may include the measurement field F of the infrared detection unit 21 in the radiation temperature measurement unit 2. Whether or not the measurement field of view F of the infrared detection unit 21 is included is displayed on the screen S at a predetermined position (for example, the central portion) of the captured image P indicating that the laser beam is in the photographing region. As a result, the user can easily confirm that the positional deviation has been corrected. Further, the position or angle in which the mobile terminal 3 is provided may be changed so that the photographing region is included in the measurement field of view F of the infrared detection unit 21. Also in this case, the predetermined position (for example, the central portion) of the captured image P is displayed on the screen S, so that the user can easily confirm that the positional deviation has been corrected.

Further, the image pickup unit 304 and the radiation temperature measurement unit 2 may be fixed to the fixing member 4 so as to minimize the positional deviation (for example, the difference in the distance from the measurement object W). In FIG. 9, in order to make the distance between the radiation temperature measuring unit 2 and the measurement object W closer to the distance between the imaging unit 304 and the measurement object W, the radiation temperature measuring unit 2 is measured with the measurement object W as compared with the above embodiment. It shows the state of being fixed at a position away from. Here, it is conceivable that the distance between the radiation temperature measuring unit 2 and the measuring object W is the distance between the sensor element 211 of the radiation temperature measuring unit 2 and the measuring object W. Further, the distance between the image pickup unit 304 and the measurement object W may be the distance between the image sensor of the image pickup unit 304 and the measurement object W.

Further, the display control unit 31 double-tap the screen S of the mobile terminal 3 (operation of tapping the screen S twice in succession) or pinch out (place two fingers on the screen S to widen the interval). It is also possible to magnify and display the captured image P and the measurement field of view F on the screen S in response to an input of an enlargement operation such as (operation of moving to).

In the above embodiment, the still image mode (camera mode) has been described, but the moving image mode (video mode) may be used. In the case of the moving image mode, the measurement result (measurement temperature and measurement field F) may be acquired at predetermined time intervals, or the measurement result (measurement temperature and measurement field F) may be acquired by the user pressing a predetermined button. You may try to get.

In the multi-point measurement mode, continuous measurement mode, etc., as shown in FIG. 10, the measurement temperature at each measurement point may be displayed in color. Here, the measurement result displayed at each measurement point is displayed by changing the color in the measurement visual field F at each measurement point according to the measurement temperature. The maximum and minimum display temperatures can be set, for example, a maximum temperature of 28 degrees and a minimum temperature of 10 degrees. Further, on the screen S of the display 305, an indicator IG that displays the measured temperature currently being measured by the radiation temperature measuring unit 2 is provided. In this way, by displaying the measurement results of the plurality of measurement points in different colors, the temperature distribution of the measurement object W can be visually grasped. Further, by selecting the measurement field of view F of the measurement point on the screen S by tapping or the like, detailed measurement result information such as the measurement temperature can be displayed.

Further, the radiation temperature measuring unit 2 may include a laser irradiating unit that irradiates the measurement object W with a laser beam pointing to the measurement field F. With this configuration, not only the measurement field of view F can be confirmed on the screen S of the mobile terminal 3, but also the measurement field of view F can be confirmed by visually recognizing the measurement object W.

Further, in the above-described embodiment, the measurement field of view F is displayed on the captured image P on the screen S, and a mark (“+” mark in FIG. 5) indicating the center of the measurement field of view F is displayed on the measurement field of view F. However, it may be configured so that the mark indicating the center is not displayed in the measurement field of view F. Further, in the case of the configuration having the above-mentioned laser irradiation unit, the irradiation position of the laser beam may be displayed in the measurement field of view F displayed on the screen S. In this case, the user may tap the screen S of the mobile terminal 3 to switch the display / non-display of the mark indicating the laser beam irradiation position. Further, the user may tap the screen S of the mobile terminal 3 to switch between the display of the measurement field of view F and the display of the mark indicating the laser beam irradiation position.

Moreover, the radiation temperature measurement system 100 may be able to measure the radiation temperature even when the display 305 of the mobile terminal 3 is turned off (the state in which the captured image P or the like is not displayed on the display 305). ..

Further, the mobile terminal 3 may have an image recognition function. That is, the mobile terminal 3 may recognize the registered image input in advance from the captured image P captured by the imaging unit 304, and measure the radiation temperature when the registered image is recognized.

Regarding the fixing member 4, the configuration shown in FIG. 11 may be used so as to minimize the positional deviation between the imaging unit 304 and the radiation temperature measuring unit 2. Specifically, the fixing member 4 is a first fixing portion 41 in which the mobile terminal 3 is fixed in a sideways state, and a mobile terminal 3 provided in the first fixing portion 41 and fixed to the first fixing portion 41. It has a second fixing unit 42 that extends laterally toward the imaging unit 304 side and to which the radiation temperature measuring unit 2 is fixed.

The first fixing portion 41 has a lower holding body 41a and an upper holding body 41b that hold the sideways mobile terminal 3 from above and below. The lower holding body 41a and the upper holding body 41b are configured to be expandable and contractible with each other, and are fixed by a fixing screw 41c or the like while holding the mobile terminal 3. In addition, the lower holding body 41a and the upper holding body 41b may be configured to hold the mobile terminal 3 by the elastic member.

Further, one end of the second fixing portion 42 is fixed to the upper holding body 41b of the first fixing portion 41 by a fixing screw 43 or the like. The radiation temperature measuring unit 2 is fixed to the other end of the second fixing unit 42 by a fixing screw 44 or the like. Here, as shown in FIG. 12, the through hole 42a through which the fixing screw 43 penetrates in the second fixing portion 42 is a long hole, and the second fixing portion 42 slides laterally with respect to the upper holding body 41b. It is configured to be possible. Further, the through hole 42b through which the fixing screw 44 penetrates in the second fixing portion 42 is an elongated hole, and is configured so that the radiation temperature measuring portion 2 can slide laterally with respect to the second fixing portion 42. ing. Since the upper holding body 41b, the second fixing portion 42, and the radiation temperature measuring portion 2 are slidably movable with each other in this way, radiation is emitted to the imaging unit 304 of the mobile terminal 3 fixed to the first fixing portion 41. The position of the temperature measuring unit 2 can be finely adjusted. Specifically, the center of the imaging unit 304 and the center of the radiation temperature measuring unit 2 can be positioned on the same vertical line in front view.

Further, in the second fixing portion 42, the radiation temperature measuring portion 2 is fixed from one end portion fixed to the upper holding body 41b in order to facilitate the operation of the button provided on the side surface of the fixed mobile terminal 3. Between the other ends, the bent portion 421 is bent in the direction away from the mobile terminal 3 (upper side) (see FIG. 11).

The fixing member 4 of FIG. 11 has a gripping rod 45 having a first fixing portion and 41 and a second fixing portion 42 provided at one end. The gripping rod 45 is operated by gripping the other end portion by the user. Here, in order to facilitate the imaging operation by the mobile terminal 3 while holding the gripping rod 45, it is desirable to provide an operation button at the other end of the gripping rod 45. The image pickup signal input by operating this operation button is transmitted to the mobile terminal 3 by wired communication or wireless communication (for example, Bluetooth). With this configuration, the user can measure the temperature without approaching the object to be measured.

In addition, the measurement result image may be configured to be output as a report, or the measurement result image may be transmitted to a server and managed by the server. Further, the temperature data measured by the radiation temperature measuring system may be transmitted to the server and managed by the server.

In addition, the present invention is not limited to the above-described embodiment, and it goes without saying that various modifications can be made without departing from the spirit of the present invention.

According to the present invention, the temperature measurement area (measurement field of view) can be easily grasped not only during measurement but also after measurement, and the usability of the user can be improved.

Claims

A radiation temperature measuring unit that measures the temperature of the object to be measured in a non-contact manner,
An imaging unit that images the object to be measured, and an imaging unit.
A display control unit that superimposes the measurement field of view of the radiation temperature measuring unit according to the distance to the measurement object on the captured image of the imaging unit and displays it on the screen.
A radiation temperature measurement system including a measurement result storage unit that stores the measurement temperature of the radiation temperature measurement unit together with the captured image on which the measurement field of view is superimposed.
A distance calculation unit that calculates the distance to the object to be measured, and
Further provided with a relational information storage unit for storing relational information indicating the relationship between the distance and the measurement field of view in the radiation temperature measuring unit.
In the display control, the measurement field of view of the radiation temperature measurement unit is obtained based on the distance to the measurement object obtained by the distance calculation unit and the related information, and the obtained measurement field of view is obtained as the captured image. The radiation temperature measurement system according to claim 1, which is superimposed on the screen and displayed on the screen.
The radiation temperature measurement system according to claim 1 or 2, wherein the display control displays the measurement temperature of the radiation temperature measuring unit on the screen in association with the measurement field of view.
The radiation temperature measuring system according to any one of claims 1 to 3, wherein the radiation temperature measuring unit measures the average temperature in the measurement field.
The display control is any one of claims 1 to 4, wherein the measurement temperature and the measurement field of view of the radiation temperature measuring unit acquired at each of a plurality of locations are superimposed on one of the captured images and displayed on the screen. The radiation temperature measurement system described in.
It is configured to be able to switch between a batch measurement mode in which a single temperature measurement is performed and a continuous measurement mode in which multiple temperature measurements are performed continuously.
The radiation temperature measurement system according to any one of claims 1 to 5, wherein in the continuous measurement mode, the display control displays a graph showing a time-dependent change in the measurement temperature of the radiation temperature measuring unit on the screen.
The image pickup unit and the display control unit are provided on the mobile terminal.
The radiation temperature measuring system according to any one of claims 1 to 6, wherein the radiation temperature measuring unit is connected to the mobile terminal by wire or wirelessly so as to be communicable.
The radiation temperature measurement system according to any one of claims 1 to 7, wherein the relative position between the radiation temperature measuring unit and the imaging unit is fixed.
A radiation temperature measurement program used in a radiation temperature measurement system including a radiation temperature measuring unit that measures the temperature of a measurement object in a non-contact manner and an imaging unit that images the measurement object.
A display control unit that superimposes the measurement field of view of the radiation temperature measuring unit according to the distance to the measurement object on the captured image of the imaging unit and displays it on the screen.
A radiation temperature measurement program, characterized in that a computer is provided with a function as a measurement result storage unit that stores the measurement temperature of the radiation temperature measurement unit together with the captured image on which the measurement field is superimposed.
The temperature of the object to be measured is measured in a non-contact manner by the radiation temperature measuring unit.
The object to be measured is imaged by the image pickup unit, and the measurement object is imaged.
The measurement field of view of the radiation temperature measuring unit according to the distance to the measurement object is superimposed on the captured image of the imaging unit and displayed on the screen.
A radiation temperature measuring method in which the measured temperature of the radiation temperature measuring unit is stored in a memory together with the captured image on which the measurement field of view is superimposed.
A mobile terminal that acquires temperature information measured from a radiation temperature measuring unit that measures the temperature of an object to be measured in a non-contact manner.
An imaging unit that images the object to be measured, and an imaging unit.
A mobile terminal including a display control unit that superimposes a measurement field of view of the radiation temperature measuring unit according to a distance to the measurement object on an image captured by the imaging unit and displays it on a screen.