JP2020009171A - Burning evaluation system, information processing apparatus and program - Google Patents

Abstract

To allow a user who is not a skillful operator to adjust flame.SOLUTION: A burning evaluation system has storage means for storing a plurality of flame images and their relationship with flame conditions which determines a flame state, acquiring means for acquiring a target flame image which is a flame image imaged at a site and used for determination of the state, specifying means for selecting flame images which is identical with or similar to the target flame image acquired by the acquiring means, from the plurality of the flame images stored in the storage means to specify the flame conditions of the target flame image, and output means for outputting information of the specified flame condition specified by the specifying means.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a combustion evaluation system, an information processing device, and a program.

  For example, in Patent Document 1, a flame image measured using an ITV camera (industrial television camera) with a combustion diagnostic device such as a boiler is compared with a standard flame image stored in advance. A technique is described in which a flame is determined to be a deformed flame when the level is equal to or higher than a predetermined level.

JP-A-62-206675

  By the way, there are many production processes such as heating by heat, heat treatment, and forging, and the air ratio is a factor that determines the efficiency of the combustion system in these production processes. For example, when the amount of air that can completely oxidize the fuel is introduced, the air ratio becomes 1, and the efficiency is the highest at this time. On the other hand, there is a case where the air ratio is adjusted to, for example, 1.05 to 1.1 to give a margin so that, for example, carbon monoxide does not come out. Such adjustment is performed by a skilled worker at an actual work site while observing the state of the flame. However, this requires a high level of skill, and there is a limit to the work relying on the skilled worker.

  SUMMARY OF THE INVENTION It is an object of the present invention to enable a non-skilled user to adjust the flame.

For this purpose, the present invention provides a storage means for storing a plurality of relations between a flame image and a flame condition which is a condition for determining a state of the flame, and a flame image which is photographed on site and is a target of state determination. An acquisition unit for acquiring the target flame image, and a flame image that matches or is similar to the target flame image acquired by the acquisition unit is selected from the plurality of flame images stored in the storage unit, and the flame of the target flame image is selected. A combustion evaluation system comprising: a specifying unit that specifies a condition; and an output unit that outputs information on the flame condition specified by the specifying unit.
Here, the flame condition includes a fuel flow rate and an air ratio.
Further, a display unit for displaying the information of the flame condition output by the output unit together with the captured target flame image is further provided.
Then, the display means further displays adjustment information on adjustment of the flame condition of the flame.
Further, the image processing apparatus further includes a condition obtaining unit that obtains information on a shooting condition when the target flame image is shot.
Then, the specifying unit specifies a flame condition of the target flame image by further using information on the photographing condition acquired by the condition acquiring unit.
With this object in mind, the present invention provides a storage means for storing a plurality of relationships between a feature value of a flame and a flame condition which is a condition for determining the state of the flame, and a flame image photographed on site and subjected to a state determination. Acquisition means for acquiring a target flame image, a feature quantity identification means for identifying a feature quantity of a flame of the target flame image from the target flame image acquired by the acquisition means, and a plurality of pieces of information stored in the storage means. From the flame characteristic amounts, a characteristic amount of the flame that matches or is similar to the characteristic amount of the flame specified by the characteristic amount specifying unit is selected, and the flame condition of the target flame image is specified. And an output unit for outputting the information on the flame condition.
Still further, with such a purpose, the present invention provides a storage means for storing a plurality of relationships between a feature amount of a flame and a flame condition which is a condition for determining the state of the flame, An acquisition unit that acquires a target flame image that is a target flame image, a flame condition of the target flame image is specified based on the relationship stored in the storage unit, and the target flame image acquired by the acquisition unit. An information processing apparatus comprising: a specifying unit configured to output the information on the flame condition specified by the specifying unit.
Further, with such an object, the present invention is a program executed by a computer device having an imaging unit, a data transmission unit, a data reception unit, and an image display unit, The function of transmitting the inspection flame image of the inspection burner photographed by the imaging unit to the server via the network by the data transmission unit and the information stored in the flame image database by the server are determined. A program for realizing a function of receiving the flame condition information of the inspection flame image through the network by the data receiving unit and a function of displaying the received flame condition information by the image display unit. .
Here, the function to be displayed by the image display means is characterized in that information on the flame condition is displayed by the image display means together with the inspection flame image photographed or photographed by the imaging means.
Further, the function of displaying by the image display means is characterized in that adjustment information on adjustment of the flame condition of the flame is further displayed by the image display means.

  According to the present invention, even a user who is not a skilled worker can adjust the flame.

1 is an overall view of a combustion evaluation system according to a first embodiment. FIG. 3 is a functional block diagram of the server device according to the first embodiment. FIG. 4 is a diagram illustrating an example of a flame image stored in a flame image DB unit according to the first embodiment. FIG. 4 is a diagram illustrating an example of a flame image stored in a flame image DB unit according to the first embodiment. 3A and 3B are examples of display contents on a screen of the terminal device according to the first embodiment. It is a functional block diagram of a server device of a second embodiment.

Hereinafter, an embodiment for carrying out the present invention will be described with reference to the accompanying drawings.
<First embodiment>

[Combustion evaluation system 1]
FIG. 1 is an overall view of a combustion evaluation system 1 according to the first embodiment.
As shown in FIG. 1, a combustion evaluation system 1 is a terminal device that captures an image of a flame (hereinafter, a target flame image) as a target of state determination in a combustion facility 10 that uses combustion and displays a flame condition of the flame. And a server device 30 for specifying a flame condition based on the target flame image.

  In the combustion evaluation system 1 of the first embodiment, the terminal device 20 and the server device 30 can mutually communicate information via a network. The network is not particularly limited as long as it is a communication network used for data communication between the devices, and may be, for example, a LAN (Local Area Network), a WAN (Wide Area Network), the Internet, or the like. A communication line used for data communication may be used in combination regardless of whether it is wired or wireless. Each device may be connected via a plurality of networks or communication lines using a relay device such as a gateway device or a router.

  Then, in the combustion evaluation system 1 of the first embodiment, in order to adjust the flame burning in the combustion facility 10, the flame burning in the test burner 40 for inspection connected to the combustion facility 10 on the site is adjusted by the terminal device 20. Shoot at. The target flame image (an example of the inspection flame image) of the test burner 40 taken by the terminal device 20 is transmitted to the server device 30. The server device 30 specifies a flame condition for determining the state of the flame based on the acquired target flame image. Then, the information of the flame condition of the specified target flame image is transmitted from the server device 30 to the terminal device 20 and displayed on the terminal device 20. The user (operator) can adjust the flame burning in the combustion facility 10 by referring to the flame condition displayed on the terminal device 20.

  In the present embodiment, description will be made based on an example in which city gas (for example, natural gas containing methane as a main component) as fuel and air as an oxidant are used. However, the combination of the fuel and the oxidizer is not limited to the present embodiment. For example, LPG (for example, liquefied petroleum gas mainly containing propane or butane) or oil may be used as the fuel, and oxygen or the like may be used as the oxidizing agent.

Hereinafter, each of the above-described configurations will be described in detail.
First, a description will be given of a combustion facility 10 which is a target facility for combustion evaluation in the present embodiment. The target equipment shown in FIG. 1 is, for example, an industrial furnace shown as an example of the combustion equipment 10.

  The combustion equipment 10 is a main burner 12 that generates a flame in the furnace chamber 11, a fuel supply path 13 that supplies fuel to the main burner 12, and a path that supplies air to the main burner 12. It has an air supply path 14 and an exhaust path 15 for exhausting the furnace chamber 11. Further, the combustion equipment 10 includes an adjustment unit 16 for adjusting the fuel flow rate of the fuel supply path 13 and the air flow rate of the air supply path 14, an inspection fuel path 17 connected to the fuel supply path 13, and a connection to the air supply path 14. And an inspection air passage 18.

  In the combustion equipment 10 of the first embodiment, the adjusting unit 16 adjusts the fuel flow rate of the fuel supply path 13 and the air flow rate of the air supply path 14, so that the combustion state of the main burner 12 is adjusted. Further, in the combustion equipment 10 of the first embodiment, the adjustment of the fuel flow rate of the fuel supply path 13 and the air flow rate of the air supply path 14 by the adjustment unit 16 interlocks with the fuel flow rate of the test fuel path 17 and the air flow of the test air path 18. The flow rate changes.

The test burner 40 is owned by, for example, a user (operator) who performs the inspection, and is connected to the inspection fuel passage 17 and the inspection air passage 18 of the combustion facility 10 during operation.
The structure and the like of the test burner 40 are not particularly limited. The test burner 40 of the present embodiment has, for example, a cylindrical shape, and is of a size that can be used by being burned while being held by the user in his hand. In addition, the test burner 40 of the present embodiment includes a main combustion hole that generates a main flame (main flame) by flowing a gas in which the fuel in the inspection fuel passage 17 and the air in the inspection air passage 18 flow, and a periphery of the main combustion hole. And a pilot combustion hole for generating a pilot frame for stabilizing the main frame.

[Terminal device 20]
As the terminal device 20 (an example of a display unit), a device that can be carried around by a user, such as a mobile phone such as a smartphone or a mobile terminal device such as a tablet terminal, can be used. The terminal device 20 of the present embodiment is provided with a touch panel, and performs an operation and an instruction on the image displayed on the screen 200 when the user touches the screen 200 displaying the image. In addition, the terminal device 20 includes a camera (an example of an imaging unit) that performs photographing and a communication device (for performing information communication for transmitting a photographed image and receiving information from another device such as the server device 30). An example of a data transmitting unit and an example of a data receiving unit).

[Server device 30]
FIG. 2 is a functional block diagram of the server device 30 according to the first embodiment.
3 and 4 are diagrams illustrating an example of a flame image stored in the flame image DB unit according to the first embodiment.

  As shown in FIG. 2, the server device 30 includes a flame image DB unit 31 (an example of a storage unit) that stores a relationship between a flame image IF (see FIGS. 3 and 4 described later) and flame conditions, and a target flame image. Image acquisition unit 32 (an example of an acquisition unit) for acquiring the information on the imaging condition of the target flame image, an imaging condition acquisition unit 33 (an example of a condition acquisition unit), and a flame condition corresponding to the captured flame image. The identification unit 34 includes an identification unit 34 (an example of an identification unit) and a transmission unit 35 (an example of an output unit) that displays the flame condition identified by the identification unit 34 on the terminal device 20.

(Flame image DB 31)
The flame image DB (database) unit 31 has a plurality of flame images IF captured in advance. The flame image DB unit 31 has the flame conditions of the flame in each flame image IF. That is, the flame image DB unit 31 stores a plurality of relationships between the flame image IF and the flame conditions. The flame condition is a condition that determines the state of the flame. In the first embodiment, the flame condition includes a fuel flow rate, an air ratio, and a fuel type. In the first embodiment, the fuel flow rate, the air ratio, and the fuel type are associated with one flame image IF as one flame condition.
The air ratio is determined by (actual air amount) / (theoretical air amount). Here, the stoichiometric air amount is an air amount necessary for completely burning the fuel.

Next, a plurality of relationships between the flame image IF and the flame conditions stored in the flame image DB unit 31 will be described with reference to FIGS.
In the example shown in FIG. 3, the fuel flow rate is 0.50 [NL / min. ], And 16 types of flame images IF having an air ratio of 0.0 to 1.5 are illustrated.
In the example shown in FIG. 4, as the plurality of city gas flame images IF stored in the flame image DB 31, the air ratio is 0.0 and the fuel flow rate is 0.50 [NL / min. ] To 5.00 [NL / min. ] Are illustrated as examples.

  The examples of the flame image IF and the flame condition shown in FIGS. 3 and 4 are merely examples, and the flame image DB unit 31 stores another combination of the flame image IF and the flame condition. Further, as for the fuel and the oxidant, not only the example of the combination of the city gas and the air shown in FIGS. 3 and 4 but also the combination of the other fuel and the other oxidant can be stored.

  In the present embodiment, the user uses a test burner 40 having a size corresponding to the burner used for capturing the flame image IF stored in the flame image DB unit 31. That is, in the description of the present embodiment, the size of the burner in the flame image IF shown in FIGS. 3 and 4 corresponds to the size of the test burner 40 used by the user on site.

(Captured image acquisition unit 32)
The captured image acquisition unit 32 acquires from the terminal device 20 a target flame image of the flame burning in the test burner 40. Then, the captured image acquisition unit 32 sends the acquired target flame image to the identification unit 34.
In addition, the captured image acquisition unit 32 may instruct the user to capture the flame captured image according to the content of the acquired flame captured image. The captured image acquisition unit 32 according to the first embodiment instructs the flame captured image to be a suitable image for comparison with the flame image IF. In this case, the instruction from the captured image acquisition unit 32 is transmitted to the terminal device 20 by the transmission unit 35. Then, in the present embodiment, a text message instruction is displayed on the screen 200 of the terminal device 20 together with the flame photographed image. For example, when the shooting site of the image obtained as the flame shooting image is too bright, the shooting image obtaining unit 32 instructs to shoot in a dark place, or a relatively dark background plate such as a black screen behind the flame. Or to set up.

(Shooting condition acquisition unit 33)
The photographing condition acquisition unit 33 acquires photographing condition information relating to photographing of the target flame image. The photographing condition information includes photographing environmental conditions such as temperature and humidity at the site where the flame photographed image is photographed, burner conditions relating to the test burner 40 such as burner type and outer diameter, and performance and characteristics of the camera or a device on which the camera is mounted. The shooting device conditions are included.
The photographing condition acquisition unit 33 can acquire photographing condition information by a user's information input. Further, the photographing condition acquiring unit 33 may acquire information on the photographing environment condition from the photographing condition information from a measuring device that separately measures the temperature and humidity at the site. Further, the photographing condition acquisition unit 33 may specify the burner condition in the photographing condition information based on the image of the test burner 40 reflected in the flame photographed image. Further, the photographing condition acquiring unit 33 may acquire the photographing device condition in the photographing condition information as meta information such as Exif information included in the photographed image data.

(Specifying part 34)
The specifying unit 34 matches a flame image IF that matches or is similar to the target flame image acquired by the captured image acquisition unit 32, from the plurality of flame images IF stored in the flame image DB unit 31.
In performing the comparison between the flame image IF and the target flame image, the identification unit 34 of the present embodiment performs image processing for adjusting the size of the flame of the target flame image to the flame image IF. This is because the size of the flame in the target flame image varies depending on the distance between the test burner 40 and the terminal device 20.

The specifying unit 34 performs enlargement processing or reduction processing of the target flame image, for example, such that the width of the lower end of the target flame image matches the width of the lower end of the flame in the flame image IF.
It is sufficient that the size of the target flame image and the size of the flame image IF match, and the invention is not limited to the example in which the size is adjusted based on the width of the lower end of the target flame image as described above. For example, when the target flame image includes the test burner 40, the specifying unit 34 may adjust the size based on the outer diameter of the test burner 40. Furthermore, when the target flame image includes a reference scale that can specify the size of the target flame image, the specifying unit 34 may adjust the size of the target flame image based on the numerical value of the reference scale.

  Then, if there is one flame image IF that matches the target flame image among the plurality of flame images IF stored in the flame image DB unit 31, the specifying unit 34 selects the one flame image IF. Then, the specifying unit 34 specifies the flame condition associated with the selected one flame image IF, and sends information on the specified flame condition to the transmission unit 35.

  In addition, if there is one flame image IF most similar to the target flame image among the plurality of flame images IF stored in the flame image DB unit 31, the specifying unit 34 selects that one flame image IF. Then, the specifying unit 34 specifies the flame condition associated with the selected one flame image IF, and sends information on the specified flame condition to the transmission unit 35.

Note that when there are a plurality of flame images IF similar to the target flame image in the flame images IF stored in the flame image DB unit 31, the specifying unit 34 determines the flame of the target flame image based on the plurality of flame images IF. Conditions may be specified.
For example, the following method can be used to specify the flame condition of the target flame image based on the plurality of flame images IF.

  The specifying unit 34 may regard the median value of the plurality of flame conditions respectively corresponding to the plurality of flame images IF similar to the target flame image as the flame condition of the target flame image. For example, the specifying unit 34 determines that the target flame image is similar to both the flame image IF with the air ratio of 0.60 (see FIG. 3) and the flame image IF with the air ratio of 0.70 (see FIG. 3). If it is determined, the air ratio of the target flame image is specified as 0.65.

  When there are a plurality of flame images IF similar to the target flame image, the specifying unit 34 further evaluates the similarity of the target flame image to each of the flame images IF. Then, the specifying unit 34 may adopt a value close to the flame condition of the target image IF having a higher similarity among the plurality of target images IF. For example, the specifying unit 34 determines that the target flame image is similar to both the flame image IF having the air ratio of 0.60 (see FIG. 3) and the flame image IF having the air ratio of 0.70 (see FIG. 3). When it is determined that the similarity of the air ratio 0.60 is higher than the air ratio 0.70, the air ratio of the target flame image is specified as 0.63.

  Furthermore, when there are a plurality of flame images IF similar to the target flame image, the specifying unit 34 may present to the user the evaluation itself of the similarity of the target flame image to each flame image IF. For example, when the target flame image is similar to both the flame image IF with the air ratio of 0.60 (see FIG. 3) and the flame image IF with the air ratio of 0.70 (see FIG. 3), Based on the evaluation of the similarity, a determination result that the similarity at the air ratio 0.70 is XX% and the similarity at the air ratio 0.60 is YY% is presented to the user.

In addition, the specifying unit 34 of the present embodiment determines that the fuel type of the target flame image is city gas when there is a flame image IF that matches or is similar to the target flame image in the plurality of flame images IF. to decide.
On the other hand, when there is no flame image IF that matches or is similar to the target flame image among the plurality of flame images IF, the specifying unit 34 determines that the type of fuel of the target flame image is not city gas.

  Further, the specifying unit 34 of the first embodiment specifies the flame condition of the target flame image using the photographing condition information. The specifying unit 34 of the first embodiment performs a correction process on the target flame image based on the shooting condition information. Then, the specifying unit 34 compares the corrected target flame image with the flame image IF, and specifies a flame condition corresponding to the target flame image.

For example, the identification unit 34 acquires information on the brightness of the site where the target flame image is captured. The information on the brightness can be specified from the target flame image itself, or can be acquired by separately receiving a photographed image of the site from the user before photographing the target flame image.
If the brightness of the shooting place is brighter than a predetermined reference amount, the specifying unit 34 adjusts the brightness or corrects the color of the target flame image according to the brightness relative to the reference amount. Image processing. Then, the specifying unit 34 performs comparison with the flame image IF using the target flame image on which the image processing has been performed.

  Further, for example, the specifying unit 34 acquires the photographing environment conditions such as the temperature and the humidity of the site from the photographing condition acquiring unit 33. Then, the specifying unit 34 applies a correction reflecting the influence of the temperature and humidity on the combustion state of the flame of the test burner 40 to the target flame image, and matches or is similar to the target flame image corrected from the plurality of flame images IF. The flame image IF is specified.

Similarly, the specifying unit 34 applies a correction reflecting the effect of the burner condition on the combustion state of the flame of the test burner 40 to the target flame image, and then matches the target flame image corrected from the plurality of flame images IF. Alternatively, a similar flame image IF is specified.
Similarly, the specifying unit 34 applies a correction reflecting the influence of the imaging device condition on the target flame image to the target flame image, and then matches or is similar to the target flame image corrected from the plurality of flame images IF. The flame image IF is specified.

  In the example described above, the specifying unit 34 corrects the target flame image according to the photographing condition information. However, instead of performing the correction on the target flame image, the specifying unit 34 changes the photographing conditions and the like. The flame image IF may be stored in advance. Then, the specifying unit 34 narrows down the shooting conditions based on the shooting condition information, and then specifies a flame image IF that matches or is similar to the target flame image from the plurality of flame images IF whose conditions have been narrowed down. You may do it.

(Transmission unit 35)
The transmitting unit 35 transmits the information of the flame condition acquired from the specifying unit 34 to the terminal device 20. Specifically, the transmitting unit 35 transmits information on the fuel flow rate and the air ratio as the flame condition. Further, in the present embodiment, the transmitting unit 35 transmits information on whether or not the fuel of the flame in the target flame image is city gas to the terminal device 20.

Subsequently, a screen display operation in the terminal device 20 used in the combustion evaluation system 1 of the first embodiment will be described.
FIG. 5 is an example of the display content of the screen 200 of the terminal device 20 according to the first embodiment.
The terminal device 20 illustrated in FIG. 5 has installed therein an application for realizing the combustion evaluation system 1 of the first embodiment.
As shown in FIG. 5A, when the application is started, an operation message 51, a burner target position 52, and an evaluation execution button 53 are displayed on the screen 200.

  The operation message 51 instructs to capture the target flame image and display it on the screen 200. The operation message 51 also explains that the evaluation of the flame condition for the captured target flame image can be performed by pressing the evaluation execution button 53. In the example shown in FIG. 5 (A), a text message with the content "Please adjust the burner to the position of the broken line and press the evaluation execution button" is displayed.

The burner target position 52 is an image indicating a target of a position and a size of an end of the test burner 40 when a target flame image is captured and displayed on the screen 200. In the first embodiment, the burner target position 52 is indicated by a broken line at the center of the screen 200 and at the lower end.
In the first embodiment, by photographing the target flame image so that the test burner 40 matches the burner target position 52, it is possible to photograph in the same size as the flame image IF stored in the flame image DB unit 31. It is not essential that the test burner 40 be aligned with the target burner position 52. However, in the first embodiment, when the target captured image is compared with the flame image IF, the amount of enlargement or reduction of the size of the target flame image is reduced by matching the target captured image with the flame image IF, and the size of the target flame image is reduced. A decrease in matching accuracy is suppressed.

  When the evaluation execution button 53 is pressed, the target flame image displayed on the screen 200 is transmitted to the server device 30 when pressed.

When the evaluation execution button 53 is pressed, the flame condition information 55 is displayed on the same screen 200 on which the target flame image 54 is displayed, as shown in FIG. 5B. In the first embodiment, the screen 200 includes, as the flame condition information 55, the air ratio information 551 that is the information of the specified air ratio, the fuel flow rate information 552 that is the information of the fuel flow rate, and the fuel type that is the information of the fuel type. Information 553 is displayed, respectively.
When the evaluation execution button 53 is pressed, an evaluation stop button 56 for stopping the evaluation is displayed on the screen 200.

  Further, in the present embodiment, the adjustment information 57 relating to the adjustment of the flame condition is displayed to the user on the same screen 200 on which the target flame image 54 is displayed. In the present embodiment, for example, the air ratio is set to a predetermined numerical value (for example, 1.1) as the target value of the flame condition. Further, the flame condition of the target flame image specified by photographing the flame of the test burner 40 is compared with the target value of the flame condition. Then, the adjustment information 57 indicates the necessity of adjustment based on whether or not the flame condition of the target flame image matches the target value of the flame condition, and the flame condition of the actual flame as the target value of the flame condition. Display instructions for matching. In the example shown in FIG. 5, as an example of the adjustment information 57, a text message indicating "! Air ratio required adjustment" indicating the necessity of adjusting the flame condition is displayed on the screen 200. Further, in the example shown in FIG. 5, as an example of the adjustment information 57, a text message indicating "increase the air ratio" indicating a specific instruction of the adjustment of the flame condition is displayed on the screen 200.

  In the first embodiment, when the evaluation execution button 53 is pressed once, the terminal device 20 transmits the target flame image at predetermined time intervals, and updates the flame condition information 55 on the screen 200. It is done from time to time.

  Note that the target flame image displayed on the screen 200 is captured and displayed as a still image at the timing when the evaluation execution button 53 is pressed, and the flame condition information 55 on the captured target flame image is displayed on the screen 200 together with the still image. May be displayed.

Further, in the terminal device 20, the target flame image displayed on the screen 200 and the flame conditions of the target flame image can be stored as history information. This allows the user to refer to the target flame image after the end of the flame shooting, such as by checking the comparison between the target flame image and the flame condition on the screen 200. The history information of the target flame image and the flame condition may be stored in the server device 30.
In the present embodiment, the shooting date and time of the target flame image may be displayed on the screen 200 or may be left as history information as described above.

<Embodiment 2>
FIG. 6 is a functional block diagram of the server device 30 according to the second embodiment.
The combustion evaluation system 1 according to the second embodiment is different from the first embodiment in the functional configuration of the server device 30.
As shown in FIG. 6, the server device 30 according to the second embodiment includes a flame feature amount DB unit 36 (an example of a storage unit) that stores a relationship between a feature amount of a flame and a flame condition, and an image capturing device that acquires a target flame image. An image acquiring unit 32, a photographing condition acquiring unit 33 that acquires information on photographing conditions of the target flame image, a feature amount specifying unit 37 that specifies a feature amount of the target flame in the target flame image, and a flame condition of the target flame image. It has a specifying unit 34 for specifying, and a transmitting unit 35 for displaying the condition amount specified by the specifying unit on a screen.

(Flame feature DB section 36)
The flame feature value DB (database) unit 36 has information on feature values of a plurality of flames. The flame feature DB section 36 has a flame condition for each flame. That is, the flame feature DB section 36 stores a plurality of relationships between the feature of the flame and the flame conditions.
The feature amount of the flame includes a ratio of the height of the main frame to the pilot frame, a ratio of the size of the inner flame to the outer flame, a color of the flame, a state of turbulence, and the like.

  The flame feature amount DB unit 36 stores, for example, a fuel flow rate of 0.50 [NL / min. ] And the characteristic amount of the flame when the air ratio is 0.0 is stored. Further, for example, the flame feature amount DB unit 36 stores the flame feature amount for each of the other plurality of fuel flow rates and air ratios.

(Feature value specifying unit 37)
The characteristic amount specifying unit 37 performs image analysis on the target flame image acquired by the captured image acquiring unit 32, and identifies the characteristic amount of the target flame. The characteristic amount specifying unit 37 specifies the characteristic amount of the target flame based on the same viewpoint as the characteristic amount of the flame stored in the flame characteristic amount DB unit 36. Then, the characteristic amount specifying unit 37 sends information of the specified characteristic amount of the target flame to the specifying unit 34.

The specifying unit 34 of the second embodiment matches one similar to or similar to the feature amount of the target flame of the target flame image specified by the feature amount specifying unit 37 from the plurality of flame feature amounts stored in the flame feature amount DB unit 36. Of the flame feature amount is selected. Then, the specifying unit 34 specifies a flame condition associated with the selected feature amount of one flame, and sends information of the specified flame condition to the transmission unit 35.
Note that, also in the second embodiment, the specifying unit 34 may perform a correction process based on the imaging condition acquisition unit 33, as in the first embodiment.

  In addition, as in the first embodiment, the specifying unit 34 of the second embodiment includes, among the feature amounts of the flame stored in the flame feature amount DB unit 36, a flame similar to the feature amount of the target flame in the target flame image. When there are a plurality of feature amounts, the flame condition of the target flame image may be specified based on the plurality of flame feature amounts stored in the flame feature amount DB unit 36.

  As described above, in the combustion evaluation system 1 to which the second embodiment is applied, the relationship between the target flame image captured by the user with the terminal device 20 and the flame feature amount and the flame condition stored in the server device 30 in advance. The flame condition of the target flame image is specified based on the information, and is displayed on the screen 200 of the terminal device 20.

  In the above-described first and second embodiments, a plurality of pieces of relation information between the flame image IF and the flame condition or a plurality of pieces of relation information between the feature amount of the flame and the flame condition are prepared in advance, and the actually photographed object is obtained. Although the matching of the feature amount of the flame extracted from the flame image or the target flame image is performed, the present invention is not limited to this mode. For example, the flame condition of the flame in the target flame image may be specified from the target flame image captured by the terminal device 20 using the machine learning module.

For the machine learning, for example, a technology such as CNN (Convolutional Neural Net) can be used. The CNN automatically learns a feature extraction method of an image based on a large amount of learning data. After learning, by inputting an image to the trained CNN, the feature amount of the image is extracted, and recognition and labeling are performed on the input image.
In the second embodiment, a large amount of flame images whose flame conditions are known in advance are machine-learned by the CNN as learning data. Specifically, for example, when the fuel flow rate is 0.50 [NL / min. ], And a large amount of flame images having an air ratio of 1.0 are machine-learned by the CNN. Similarly, for example, when the fuel flow rate is 0.50 [NL / min. ] And the CNN is machine-learned with a large amount of flame images having an air ratio of 1.1. Similarly, for other flame conditions, the flame image is machine-learned by the CNN, and the feature amount of the flame image is learned for each flame condition. Then, the target flame image captured by the terminal device 20 is input to the learned CNN, and the target flame image is classified into any of a plurality of flame conditions.

In the description of the first embodiment, the specifying unit 34 of the server device 30 specifies the flame condition using one target flame image acquired from the terminal device 20, but is not limited thereto. For example, the flame condition may be specified using a moving image of the target flame image. In this case, the accuracy of matching between the target flame image and the flame image IF increases, for example, in that the movement of the flame can be captured.
Further, the specifying unit 34 of the server device 30 may specify the flame condition of the target flame based on sound information generated when the flame burns, in addition to the flame image or the characteristic amount of the flame.

  Further, in the combustion evaluation system 1 according to the first embodiment, the flame of the main burner 12 of the combustion equipment 10 is determined according to the flame condition of the test burner 40 specified from the target flame image of the test burner 40 captured by the terminal device 20. May be adjusted. In this case, the terminal device 20 or the server device 30 and the adjustment unit 16 of the combustion facility 10 can mutually communicate information. Further, for example, the air ratio is set to a predetermined numerical value as the target value of the flame condition. Then, the flame of the test burner 40 is photographed, and the air ratio as the flame condition obtained from the target flame image is compared with the air ratio as the target value, and the air ratio obtained from the target flame image becomes the target value. The adjustment unit 16 is controlled so as to be as follows.

Here, the hardware configurations of the terminal device 20 and the server device 30 according to the first embodiment will be described.
Each of the terminal device 20 and the server device 30 includes a CPU (Central Processing Unit) serving as an arithmetic unit, a memory serving as a main storage unit, a magnetic disk device (HDD: Hard Disk Drive), a network interface, a display mechanism including a display device, It has an audio mechanism and input devices such as a keyboard and a mouse.
The magnetic disk device stores OS programs and application programs. Then, these programs are read into the memory and executed by the CPU, whereby the functions of the respective functional units in each of the terminal device 20 and the server device 30 of the first and second embodiments are realized.
Further, a program for realizing a series of operations in the combustion evaluation system 1 of the first and second embodiments in the terminal device 20 and the server device 30, respectively, is provided by, for example, communication means, and is stored in various recording media. May be provided.

The configuration for realizing a series of functions performed in the combustion evaluation systems 1 of the first and second embodiments is not limited to the above-described example. For example, all the functions realized by the server device 30 in the above-described embodiment need not be realized by the server device 30, and the terminal device 20 may realize some or all of the functions.
For example, in the second embodiment, the terminal device 20 may have the function of the feature amount specifying unit 37 of the server device 30. In this case, the terminal device 20 extracts the characteristic amount of the flame from the target flame image obtained by photographing the test burner 40, and transmits information on the extracted characteristic amount of the flame to the server device 30.

DESCRIPTION OF SYMBOLS 1 ... Combustion evaluation system, 20 ... Terminal device, 30 ... Server device, 31 ... Flame image DB part, 32 ... Photographed image acquisition part, 33 ... Photographing condition acquisition part, 34 ... Identification part, 35 ... Transmission part, 36 ... Flame Feature amount DB unit, 37: feature amount specifying unit, 40: test burner, 200: screen

Claims (11)

Storage means for storing a plurality of relationships between the flame image and a flame condition which is a condition for determining the state of the flame;
Acquisition means for acquiring a target flame image that is a flame image that is taken at the site and is a target of state determination,
From the plurality of flame images stored in the storage unit, select a flame image that matches or is similar to the target flame image acquired by the acquisition unit, and specifies a flame condition of the target flame image,
Output means for outputting information of the flame condition specified by the specifying means,
A combustion evaluation system comprising:   The combustion evaluation system according to claim 1, wherein the flame condition includes a fuel flow rate and an air ratio.   The combustion evaluation system according to claim 1, further comprising a display unit configured to display the information on the flame condition output by the output unit together with a captured target flame image.   The combustion evaluation system according to claim 3, wherein the display unit further displays adjustment information on adjustment of the flame condition of the flame.   The combustion evaluation system according to claim 1, further comprising a condition acquisition unit configured to acquire information on a photographing condition when the target flame image is photographed.   The combustion evaluation system according to claim 5, wherein the specifying unit specifies a flame condition of the target flame image by further using information on the photographing condition acquired by the condition acquiring unit. Storage means for storing a plurality of relationships between the flame feature amount and a flame condition which is a condition for determining the state of the flame;
Acquisition means for acquiring a target flame image that is a flame image that is taken at the site and is a target of state determination,
A characteristic amount specifying unit that specifies a characteristic amount of a flame of the target flame image from the target flame image obtained by the obtaining unit;
From the feature values of the plurality of flames stored in the storage means, a feature quantity of the flame which matches or is similar to the feature quantity of the flame specified by the feature quantity specifying means is selected, and the flame condition of the target flame image is specified. Identification means,
Output means for outputting information of the flame condition specified by the specifying means,
A combustion evaluation system comprising: Storage means for storing a plurality of relationships between the flame feature amount and a flame condition which is a condition for determining the state of the flame;
Acquisition means for acquiring a target flame image that is a flame image that is taken at the site and is a target of state determination,
Based on the relationship stored in the storage unit and the target flame image obtained by the obtaining unit, a specifying unit that specifies a flame condition of the target flame image;
Output means for outputting information of the flame condition specified by the specifying means,
An information processing apparatus comprising: An imaging unit, a data transmission unit, a data reception unit, and an image display unit, a program executed by a computer device including:
A function of transmitting an inspection flame image of the inspection burner taken by the imaging unit at a combustion site to the server via a network by the data transmission unit;
A function of receiving the flame condition information of the inspection flame image determined using the information stored in the flame image database at the server by the data receiving unit via a network;
A function of displaying the received information of the flame condition by the image display means,
The program that realizes.   The function of displaying by the image display means causes the image display means to display the information of the flame condition together with the inspection flame image photographed or photographed by the imaging means. Program.   The program according to claim 10, wherein the function of displaying by the image display means further causes the image display means to display adjustment information on adjustment of the flame condition of the flame.