JP7030603B2 - Gas type identification accuracy adjustment device, simple gas type identification device, gas type identification system, gas type identification accuracy adjustment method, and program - Google Patents

Description

The present invention relates to a gas type identification accuracy adjustment device, a simple gas type identification device, a gas type identification system, a gas type identification accuracy adjustment method, and a program.

In Patent Document 1, a coefficient is calculated based on the concentration of methane contained in the flammable sample gas, and the calculated coefficient is multiplied by the concentration of a gas other than methane contained in the sample gas to obtain the sample gas. A simple gas type specifying device for specifying the type of gas component contained is disclosed (see, for example, Patent Document 1).

In the simple gas type identification device, the sample gas is fermented when the concentration of methane in the sample gas is equal to or higher than the predetermined concentration and the ratio of the concentrations of ethane, propane, and butane to the concentration of methane is less than the predetermined value. It is always identified as a gas derived from the gas alone.

Japanese Unexamined Patent Publication No. 3-214054

However, the type of gas specified by a high-precision gas type identification device (for example, a device equipped with a gas chromatograph or the like) that can specify the gas type with higher accuracy than the simple gas type identification device, and the simple gas. The type of gas identified by the species identification device may be different.

In the present invention, the type of sample gas by the simple gas type identification device is compared with the case where the specification result by the high-precision gas type identification device that specifies the type of sample gas with higher accuracy than the simple gas type identification device is not used. It is an object of the present invention to provide a gas type specifying accuracy adjusting device, a simple gas type specifying device, a gas type specifying system, a gas type specifying accuracy adjusting method, and a program capable of improving the specifying accuracy.

In order to achieve the above object, the gas type specifying accuracy adjusting device according to claim 1 has a plurality of concentrations of each of the plurality of types of gas components and a plurality of values defined for each of the plurality of types of gas components. It was specified by a high-precision gas type identification device that specifies the type of sample gas with higher accuracy than a simple gas type identification device that specifies the type of sample gas by comparing with the corresponding threshold value among the threshold values. When the type of the sample gas is different from the type of the sample gas specified by the simple gas type identification device, the type of the sample gas specified by the high-precision gas type identification device is the same for the sample gas. A change unit for changing a specific threshold value among the plurality of threshold values is included as specified by the simple gas type identification device.

In order to achieve the above object, the simplified gas type specifying device according to claim 5 includes the gas type specifying accuracy adjusting device according to any one of claims 1 to 4, and a plurality of types of gas components. Outputs a gas signal that identifies the type of the sample gas based on the result of comparing each concentration of the sample with the corresponding threshold value among the plurality of threshold values determined for each of the plurality of types of gas components. Includes an output section and.

In order to achieve the above object, the gas type identification system according to claim 6 has a concentration of each of a plurality of types of gas components and a plurality of threshold values set for each of the plurality of types of gas components. A simple gas type specifying device for specifying the type of sample gas by comparing with the corresponding threshold value, and a gas type specifying accuracy adjusting device according to any one of claims 1 to 4. include.

In order to achieve the above object, in the gas type specifying accuracy adjusting method according to claim 8, a simple gas type specifying device is used for each concentration of a plurality of types of gas components and for each of the plurality of types of gas components. On the other hand, the type of the sample gas is specified by comparing with the corresponding threshold value among the plurality of threshold values determined for each, and the high-precision gas type specifying device is more than the simple gas type specifying device. The type of the sample gas specified by the high-precision gas type identification device is different from the type of the sample gas specified by the simple gas type identification device. In this case, for the sample gas, a specific threshold value among the plurality of threshold values is changed so that the type of the sample gas specified by the high-precision gas type identification device is specified by the simple gas type identification device. Including doing.

In order to achieve the above object, the program according to claim 9 causes the computer to function as the modification part included in the gas type specifying accuracy adjusting device according to any one of claims 1 to 4. It is said to be a program for.

According to the present invention, as compared with the case where the specification result by the high-precision gas type identification device that specifies the type of the sample gas with higher accuracy than the simple gas type identification device is not used, the sample gas by the simple gas type identification device is used. The accuracy of specifying the type can be improved.

It is a block diagram which shows an example of the structure of the gas type identification system which concerns on embodiment. It is a block diagram which shows an example of the structure of the simple type gas type identification apparatus included in the gas type identification system which concerns on embodiment. It is a block diagram which shows an example of the structure of the high-precision gas type identification apparatus included in the gas type identification system which concerns on embodiment. It is a flowchart which shows an example of the flow of the gas type identification process which concerns on embodiment. It is a continuation of the flowchart shown in FIG. It is a continuation of the flowchart shown in FIG. It is a flowchart which shows an example of the flow of the gas type identification accuracy adjustment processing which concerns on embodiment. It is a continuation of the flowchart shown in FIG. It is a continuation of the flowchart shown in FIG. It is a block diagram which shows an example of the main part function which concerns on this invention of the CPU included in the simple type gas type identification apparatus which concerns on embodiment. It is a screen view which shows an example of the precision adjustment necessity screen displayed on the display by executing the gas type identification precision adjustment process which concerns on embodiment. It is a screen diagram which shows an example of the mode instruction screen which is displayed on the display by executing the gas type identification accuracy adjustment process which concerns on embodiment. It is a screen diagram which shows an example of the threshold value adjustment screen which is displayed on the display by executing the gas type identification accuracy adjustment process which concerns on embodiment. It is a screen diagram which shows an example of the threshold value adjustment screen displayed on the display when the alert process included in the gas type identification accuracy adjustment process which concerns on embodiment is executed. It is a screen view which shows an example of the density | concentration reception screen which is displayed on the display by executing the gas type identification accuracy adjustment process which concerns on embodiment. It is a block diagram which shows the modification of the structure of the gas type identification system which concerns on embodiment. It is a conceptual diagram which shows an example of the mode in which the gas type identification accuracy adjustment program is installed in the simplified gas type identification apparatus from the storage medium which stored the gas type identification accuracy adjustment program which concerns on embodiment.

Hereinafter, examples of embodiments for carrying out the present invention will be described in detail with reference to the drawings.

As an example, as shown in FIG. 1, the gas type identification system 10 includes a simple gas type identification device 12 and a high-precision gas type identification device 14. The simple gas type specifying device 12 includes a gas type specifying accuracy adjusting device 16. The high-precision gas type identification device 14 includes a gas chromatograph 18.

The simplified gas type identification device 12 has a concentration of each of a plurality of types of gas components and a plurality of threshold values (hereinafter, simply referred to as “plurality of threshold values”) determined for each of the plurality of types of gas components. The type of sample gas is specified by comparing it with our corresponding threshold. The gas type specifying accuracy adjusting device 16 adjusts the accuracy of specifying the type of the sample gas by changing a specific threshold value (hereinafter, simply referred to as “specific threshold value”) among the plurality of threshold values.

Here, the plurality of types of gas components refer to, for example, methane, ethane, propane, butane, and carbon dioxide gas. Further, the sample gas refers to a gas obtained by removing dust, water, etc. from the gas of unknown origin by filtering the gas of unknown origin. The gas of unknown origin refers to a gas of unknown origin that leaks into the ground or to the surface of the earth via soil or the like.

The high-precision gas type specifying device 14 specifies the type of the sample gas with higher accuracy than the simple gas type specifying device 12. Further, the high-precision gas type identification device 14 has a function of measuring the concentration of each of a plurality of types of gas components. That is, in the high-precision gas type identification device 14, the gas chromatograph 18 identifies the gas component contained in the sample gas by the analysis of the sample gas, that is, the principle of gas chromatography, and measures the concentration of the specified gas component. do. Then, in the high-precision gas type identification device 14, the type of the sample gas is specified based on the analysis result by the gas chromatograph 18.

As an example, as shown in FIG. 2, the simple gas type identification device 12 includes a sampling nozzle 22, a concentration detection unit 24, a pump 26, a drive device 28, a control device 40, a communication device 41, a storage device 43, and a reception device 46. It is equipped with a display 48 and an external I / F30. In the present embodiment, "I / F" refers to an abbreviation for an interface.

The control device 40 includes a CPU 34, a ROM 36, and a RAM 38. Here, the CPU refers to the abbreviation of "Central Processing Unit". Further, ROM refers to an abbreviation of "Read Only Memory". Further, RAM refers to the abbreviation of "Random Access Memory".

The CPU 34, ROM 36, and RAM 38 are connected to the bus line 32. The bus line 32 is connected to the external I / F30. That is, the control device 40 is connected to the external I / F 30 via the bus line 32.

The CPU 34 controls the entire simple gas type specifying device 12. The ROM 36 is a memory that stores a program, various parameters, and the like that control the basic operation of the simple gas type specifying device 12. The RAM 38 is a volatile memory used as a work area or the like when executing various programs.

The external I / F 30 is connected to an electric device (hereinafter referred to as "first electric device") of the simple gas type identification device 12, operates under the control of the CPU 34, and the CPU 34 and the first electric system. Controls the transmission and reception of various information with and from the device. In the example shown in FIG. 2, as an example of the first electric system device, a concentration detection unit 24, a drive device 28, a communication device 41, a storage device 43, a reception device 46, and a display 48 are shown.

The communication device 41 transmits and receives various types of information by communicating with a first communication device (described later) installed outside under the control of the CPU 34. That is, the communication device 41 receives the information transmitted from the first communication device, and outputs the received information to the CPU 34 via the external I / F 30 and the bus line 32. Further, the communication device 41 transmits the information input from the CPU 34 via the bus line 32 and the external I / F 30 to the first communication device. As an example of the first communication device, at least one of a high-precision gas type identification device 14, a personal computer (not shown), a server (not shown), and a smart device (not shown) can be mentioned.

Further, the communication device 41 receives radio waves from a plurality of GPS satellites and outputs reception result information indicating the reception result to the CPU 34. The CPU 34 calculates the current position of the simplified gas type specifying device 12 based on the reception result information input from the communication device 41. In addition, GPS refers to an abbreviation of "Global Positioning System".

The storage device 43 stores the gas type identification program 50 and the gas type identification accuracy adjustment program 53. An example of the storage device 43 is an HDD, EEPROM, or SSD. Here, HDD refers to the abbreviation of "Hard Disk Drive". Further, EEPROM refers to an abbreviation of "Electrically Erasable Programmable Read Only Memory". Further, SSD refers to an abbreviation of "Solid State Drive".

The reception device 46 is an example of a reception unit according to the present invention. The reception device 46 has a keyboard, a mouse, a touch panel, and the like, and receives various instructions by the user. The reception device 46 outputs a signal indicating the content of the received instruction (hereinafter, referred to as “first instruction content signal”) to the CPU 34 via the external I / F 30 and the bus line 32. The CPU 34 executes processing according to the first instruction content signal input from the reception device 46.

The display 48 is, for example, an LCD or an OELD. The display 48 displays various screens such as a menu screen according to the instructions of the CPU 34. Here, LCD refers to the abbreviation of "Liquid Crystal Display". Further, OELD refers to an abbreviation for "Organic Electroluminescence Display".

The drive device 28 is connected to the pump 26 and controls the suction pump 26 according to an instruction from the CPU 34.

The sampling nozzle 22 is connected to the concentration detection unit 24 via the gas pipe 42, and the concentration detection unit 24 is connected to the pump 26 via the gas pipe 44. Therefore, when the pump 26 operates, the gas of unknown origin is drawn from the outside into the sampling nozzle 22, and the sample gas is drawn from the sampling nozzle 22 into the concentration detection unit 24.

The sampling nozzle 22 is used, for example, in the ground or on the surface of the earth at a predetermined place for collecting gas. When the pump 26 operates with the sampling nozzle 22 installed at a predetermined location, the sampling nozzle 22 collects a gas of unknown origin by the suction force of the pump 26.

The sampling nozzle 22 is filled with a filter (not shown), and the suction force of the pump 26 allows a gas of unknown origin to pass through the filter, whereby dust, moisture, and the like are removed, and a sample gas is obtained.

The concentration detection unit 24 takes in the sample gas from the sampling nozzle 22 through the gas pipe 42 by the suction force of the pump 26, and collects various gas components such as methane, ethane, propane, and carbon dioxide gas contained in the taken-in sample gas. Detect individually. Then, the concentration detection unit 24 detects the concentration of each detected gas component, and outputs the concentration information indicating the detected concentration to the external I / F 30. The CPU 34 acquires concentration information from the concentration detection unit 24 via the external I / F 30.

In the example shown in FIG. 2, the gas type identification accuracy adjusting device 16 includes an external I / F 30, a bus line 32, a control device 40, a communication device 41, a storage device 43, a reception device 46, and a display 48. ..

As an example, as shown in FIG. 3, the high-precision gas type identification device 14 includes a gas chromatograph 18, a control device 51, a bus line 58, an external I / F60, a storage device 62, a reception device 64, a display 66, and a communication device 68. It is equipped with.

The control device 51 includes a CPU 52, a ROM 54, and a RAM 56, and is connected to an external I / F 60 via a bus line 58.

The external I / F60 is connected to an electric device (hereinafter referred to as “second electric device”) of the high-precision gas type identification device 14, operates under the control of the CPU 52, and is operated by the CPU 52 and the second electric system. Controls the transmission and reception of various information with and from the device. In the example shown in FIG. 3, as an example of the second electric system device, a gas chromatograph 18, a storage device 62, a reception device 64, a display 66, and a communication device 68 are shown.

The gas chromatograph 18 operates under the control of the CPU 52. The CPU 52 obtains the analysis result by the gas chromatograph 18, that is, the type of the gas component specified by the gas chromatograph 18, and the concentration of the gas component measured by the gas chromatograph 18 via the external I / F 60 and the bus line 58. get. The CPU 52 specifies the type of sample gas based on the analysis result by the gas chromatograph 18.

The storage device 62 operates under the control of the CPU 52. The storage device 62 stores various information such as various programs and parameters, and the CPU 52 acquires various information from the storage device 62 via the external I / F 60 and the bus line 58. An example of the storage device 62 is an HDD, EEPROM, or SSD.

The reception device 64 has a keyboard, a mouse, a touch panel, and the like, and receives various instructions by the user. The reception device 64 outputs a signal indicating the content of the received instruction (hereinafter, referred to as “second instruction content signal”) to the CPU 52 via the external I / F 60 and the bus line 58. The CPU 52 executes processing according to the second instruction content signal input from the reception device 64.

The display 66 is, for example, an LCD or an OELD. The display 66 displays various screens such as information indicating the type of the specified sample gas, the analysis result by the gas chromatograph 18, and the menu screen according to the instruction of the CPU 52.

The communication device 68 transmits and receives various information by communicating with a second communication device (described later) installed outside under the control of the CPU 52. That is, the communication device 68 receives the information transmitted from the second communication device, and outputs the received information to the CPU 52 via the external I / F 60 and the bus line 58. Further, the communication device 68 transmits the information input from the CPU 52 via the bus line 58 and the external I / F 60 to the second communication device. As an example of the second communication device, at least one of a simple gas type identification device 12, a personal computer (not shown), a server (not shown), and a smart device (not shown) can be mentioned.

In the example shown in FIG. 2, the CPU 34 reads out the gas type specifying program 50 from the storage device 43, and expands the read gas type specifying program 50 into the RAM 38. The CPU 34 operates as the output unit 70 shown in FIG. 10 as an example by executing the gas type specifying program 50 developed in the RAM 38. Further, the CPU 34 reads out the gas type specifying accuracy adjusting program 53 from the storage device 43, and deploys the read gas type specifying accuracy adjusting program 53 in the RAM 38. The CPU 34 operates as the change unit 72 shown in FIG. 10 as an example by executing the gas type identification accuracy adjustment program 53 developed in the RAM 38.

In the example shown in FIG. 10, the output unit 70 outputs a gas signal for specifying the type of the sample gas based on the result of comparing the concentration of each of the plurality of types of gas components with the corresponding threshold value among the plurality of threshold values. Output.

In the example shown in FIG. 10, when the change unit 72 satisfies the predetermined conditions, the sample gas type specified by the high-precision gas type identification device 14 is the simple gas type identification device 12 for the sample gas. Change a specific threshold as specified by. Here, the predetermined condition is that the type of the sample gas specified by the high-precision gas type specifying device 14 is different from the type of the sample gas specified by the simple gas type specifying device 12. Point to.

Further, as shown in FIG. 10 as an example, the CPU 34 also operates as the processing unit 74. The processing unit 74 performs the processing necessary for operating the CPU 34 as the output unit 70 and the changing unit 72.

Next, as an operation of the portion of the gas type specifying system 10 according to the present invention, the gas type specifying process executed by the CPU 34 according to the gas type specifying program 50 will be described with reference to FIGS. 4 to 6. ..

The gas species specifying treatments shown in FIGS. 4 to 6 are treatments designed based on the composition examples shown in Table 1 below. Table 1 is a general composition example of city gas and LPG.

In the gas type identification process shown in FIG. 4, in step 100, the processing unit 74 acquires concentration information from the concentration detection unit 24, and then proceeds to step 102.

In step 102, the processing unit 74 refers to the concentration information acquired in step 100 and determines whether or not the concentration of methane in the sample gas is 30 ppm (parts per million) or more. It should be noted that "30 ppm" referred to here is one of a plurality of threshold values.

In step 102, if the concentration of methane in the sample gas is less than 30 ppm, the determination is denied and the process proceeds to step 104 shown in FIG. In step 102, when the concentration of methane in the sample gas is 30 ppm or more, the determination is affirmed and the process proceeds to step 110.

In step 104 shown in FIG. 5, the processing unit 74 refers to the concentration information acquired in step 100 and determines whether or not the concentration of propane in the sample gas is 10 ppm or more. Note that "10 ppm" used in this step 104 is merely an example, and other concentrations may be adopted. It should be noted that "10 ppm" referred to here is one of a plurality of threshold values.

In step 104, when the concentration of propane in the sample gas is 10 ppm or more, the process proceeds to step 106. In step 104, if the concentration of propane in the sample gas is less than 10 ppm, the process proceeds to step 108.

In step 106, the output unit 70 outputs an LPG signal indicating that the sample gas is a gas derived from LPG (liquefied petroleum gas) alone to the display 48 and the storage device 43 as a gas signal, and then outputs the gas signal. This gas type identification process is completed.

When the LPG signal is input, the display 48 displays a message, an image, or the like indicating that the sample gas is a gas derived from LPG alone. The storage device 43 stores the input LPG signal, the current time, the current position information, and the density information acquired in step 100 in association with each other.

Here, the current time is, for example, acquired by the processing unit 74 from the RTC (not shown) built in the simplified gas type specifying device 12. The RTC is an abbreviation for "Real Time Clock".

Further, here, the current position information refers to information indicating the current position of the simple gas type specifying device 12. As an example of the current position information, there are coordinates indicating the latitude, longitude, and altitude calculated by the processing unit 74 using GPS.

In step 108, the output unit 70 outputs an atmospheric gas signal indicating that the sample gas is a gas derived from the atmospheric gas to the display 48 and the storage device 43 as a gas signal, and then ends the gas type identification process. ..

When the atmospheric gas signal is input, the display 48 displays a message, an image, or the like indicating that the sample gas is a gas derived from the atmospheric gas alone on the display 48. The storage device 43 stores the input atmospheric gas signal, the current time, the current position information, and the concentration information acquired in step 100 in association with each other.

In step 110 shown in FIG. 4, the processing unit 74 calculates the Y value by substituting the concentration of methane represented by the concentration information acquired in step 100 into the following formula (1), and then proceeds to step 112. do.

(Y value) = 100 / (methane concentration) ... (1)

In step 112, the processing unit 74 calculates the concentration ratio of the specific combustible gas, and determines whether the calculated concentration ratio is less than 1, 1 or more and less than 100, or 100 or more.

The "specified flammable gas" here refers to ethane and propane. Further, the "concentration ratio of the specific combustible gas" referred to here is the Y value calculated in step 110 with respect to the sum of the concentration of ethane and the concentration of propane indicated by the concentration information acquired in step 100. Refers to the value obtained by multiplying by.

In the present embodiment, the concentration ratio of the specific combustible gas is also an example of the concentration according to the present invention, like the concentration of other gas components. Further, "1" and "100" used in the determination in step 112 are merely examples, and other values may be adopted. Further, in step 112, each of "1" and "100" compared with the calculated concentration ratio is one of a plurality of threshold values.

In step 112, when the concentration ratio of the specific combustible gas is 100 or more, the process proceeds to step 114 shown in FIG. In step 112, if the concentration ratio of the specific combustible gas is 1 or more and less than 100, the process proceeds to step 124. If the concentration ratio of the specified combustible gas is less than 1 in step 112, the process proceeds to step 134.

In step 114 shown in FIG. 6, the processing unit 74 calculates the concentration ratio of ethane and determines whether or not the calculated concentration ratio is 0.5 or more. The "ethane concentration ratio" referred to here refers to a value obtained by multiplying the concentration of ethane indicated by the concentration information acquired in step 100 by the Y value calculated in step 110. In the present embodiment, the concentration ratio of ethane is also an example of the concentration according to the present invention, like the concentration of other gas components. “0.5” used in step 114 is merely an example, and other values may be adopted. Further, "0.5" used in step 114 is one of a plurality of threshold values.

If the concentration ratio of ethane is less than 0.5 in step 114, the process proceeds to step 116. If the concentration ratio of ethane is 0.5 or more in step 114, the process proceeds to step 118.

In step 116, the output unit 70 outputs an LPG / fermentation gas signal indicating that the sample gas is a gas derived from a mixed gas of LPG and a fermentation gas to the display 48 and the storage device 43 as a gas signal, and then the present invention. The gas type identification process is completed.

When the LPG / fermentation gas signal is input, the display 48 displays a message, an image, or the like that the sample gas is a gas derived from a mixed gas of LPG and the fermentation gas. The storage device 43 stores the input LPG / fermentation gas signal, the current time, the current position information, and the concentration information acquired in step 100 in association with each other.

In step 118, the processing unit 74 refers to the concentration information acquired in step 100 and determines whether or not the concentration of carbon dioxide gas in the sample gas is 500 ppm or more. Note that "500 ppm" used in this step 118 is merely an example, and other concentrations may be adopted. Further, "500 ppm" used in this step 118 is one of a plurality of threshold values.

In step 118, if the concentration of carbon dioxide gas in the sample gas is less than 500 ppm, the process proceeds to step 120. In step 118, when the concentration of carbon dioxide gas in the sample gas is 500 ppm or more, the process proceeds to step 122.

In step 120, the output unit 70 outputs an LPG / city gas signal indicating that the sample gas is a gas derived from a mixed gas of LPG and city gas to the display 48 and the storage device 43 as a gas signal, and then the main The gas type identification process is completed.

When the LPG / city gas signal is input, the display 48 displays a message, an image, or the like that the sample gas is a gas derived from a mixed gas of LPG and city gas. The storage device 43 stores the input LPG / city gas signal, the current time, the current position information, and the concentration information acquired in step 100 in association with each other.

In step 122, the output unit 70 displays the city / LPG / fermentation gas signal as a gas signal indicating that the sample gas is a gas derived from a mixed gas of city gas, LPG, and fermentation gas on the display 48 and the storage device 43. Output, and then end the gas type identification process.

When a city / LPG / fermentation gas signal is input, the display 48 displays a message, an image, or the like that the sample gas is a gas derived from a mixed gas of city gas, LPG, and fermentation gas. The storage device 43 stores the input city / LPG / fermentation gas signal, the current time, the current position information, and the concentration information acquired in step 100 in association with each other.

In step 124 shown in FIG. 4, the processing unit 74 calculates the concentration ratio of ethane and determines whether or not the calculated concentration ratio is 0.5 or more. Note that "0.5" used in this step 124 is merely an example, and other values may be adopted. Further, "0.5" used in this step 124 is one of a plurality of threshold values.

If the concentration ratio of ethane is less than 0.5 in step 124, the process proceeds to step 126. In step 124, if the concentration ratio of ethane is 0.5 or more, the process proceeds to step 128.

In step 126, the output unit 70 outputs the LPG / fermentation gas signal as a gas signal to the display 48 and the storage device 43, and then ends the gas type identification process.

When the LPG / fermentation gas signal is input, the display 48 displays a message, an image, or the like indicating that the sample gas is a gas derived from a mixed gas of LPG and the fermentation gas. The storage device 43 stores the input LPG / fermentation gas signal, the current time, the current position information, and the concentration information acquired in step 100 in association with each other.

In step 128, the processing unit 74 refers to the concentration information acquired in step 100 and determines whether or not the concentration of carbon dioxide gas in the sample gas is 500 ppm or more. Note that "500 ppm" used in this step 128 is merely an example, and other concentrations may be adopted. Further, "500 ppm" used in this step 128 is one of a plurality of threshold values.

In step 128, if the concentration of carbon dioxide in the sample gas is less than 500 ppm, the process proceeds to step 130. In step 128, when the concentration of carbon dioxide gas in the sample gas is 500 ppm or more, the process proceeds to step 132.

In step 130, the output unit 70 outputs a city gas signal indicating that the sample gas is a gas derived from the city gas alone to the display 48 and the storage device 43 as a gas signal, and then ends the gas type identification process. do.

When the city gas signal is input, the display 48 displays a message, an image, or the like indicating that the sample gas is a gas derived from the city gas alone. The storage device 43 stores the input city gas signal, the current time, the current position information, and the concentration information acquired in step 100 in association with each other.

In step 132, the output unit 70 outputs a city / fermentation gas signal indicating that the sample gas is a gas derived from a mixed gas of city gas and fermentation gas to the display 48 and the storage device 43 as a gas signal, and then outputs the gas signal to the display 48 and the storage device 43. This gas type identification process is completed.

When the city / fermentation gas signal is input, the display 48 displays a message, an image, or the like that the sample gas is a gas derived from a mixed gas of the city gas and the fermentation gas. The storage device 43 stores the input city / fermentation gas signal, the current time, the current position information, and the concentration information acquired in step 100 in association with each other.

In step 134, the processing unit 74 refers to the concentration information acquired in step 100 and determines whether or not the concentration of propane in the sample gas is 1 ppm or more. Note that "1 ppm" used in this step 134 is merely an example, and other concentrations may be adopted. Further, "1 ppm" used in this step 134 is one of a plurality of threshold values.

In step 134, when the concentration of propane in the sample gas is 1 ppm or more, the process proceeds to step 136. In step 134, if the concentration of propane in the sample gas is less than 1 ppm, the process proceeds to step 138.

In step 136, the processing unit 74 calculates the concentration ratio of ethane and determines whether or not the calculated concentration ratio is 1 ppm or more. Note that "1 ppm" used in this step 136 is merely an example, and other concentrations may be adopted. Further, "1 ppm" used in this step 136 is one of a plurality of threshold values.

If the concentration ratio of ethane is 1 or more in step 136, the process proceeds to step 132. If the concentration ratio of ethane is less than 1 in step 136, the process proceeds to step 138.

In step 138, the processing unit 74 outputs a fermentation gas signal indicating that the sample gas is a fermentation gas alone to the display 48 and the storage device 43 as a gas signal, and then ends the gas type identification processing.

When the fermentation gas signal is input, the display 48 displays a message, an image, or the like indicating that the sample gas is a gas derived from the fermentation gas alone. The storage device 43 stores the input fermentation gas signal, the current time, the current position information, and the concentration information acquired in step 100 in association with each other.

In the following, for convenience of explanation, a fermentation gas signal, a city / fermentation gas signal, a city gas signal, an LPG / fermentation gas signal, a city / LPG / fermentation gas signal, an LPG / city gas signal, an LPG signal, and an atmospheric gas signal When it is not necessary to distinguish and explain, it is referred to as "gas signal".

Next, as an operation of the portion of the gas type specifying system 10 according to the present invention, refer to FIGS. 7 to 9 for the gas type specifying accuracy adjustment process executed by the CPU 34 when the CPU 34 complies with the gas type specifying accuracy adjusting program 53. I will explain. The gas type specifying accuracy adjustment process is executed by the CPU 34 when the reception device 46 receives an instruction for disclosing the execution of the gas type specifying accuracy adjustment process.

Further, in the following, for convenience of explanation, it is assumed that the gas signal is stored in the storage device 43 together with the corresponding current time, current position information, and concentration information. Further, in the following, the description will be made on the premise that the type of the sample gas, the gas component contained in the sample gas, and the concentration of the gas component contained in the sample gas are known by the high-precision gas type specifying device 14. The sample gas used for the analysis by the high-precision gas type specifying device 14 is the gas collected from the leaked part specified by excavating the place where the sample gas used in the above-mentioned gas type specifying process was collected. However, the present invention is not limited to this. For example, the sample gas used for the analysis by the high-precision gas type specifying device 14 may be the sample gas subjected to the above-mentioned gas type specifying process.

In the gas type identification accuracy adjustment process shown in FIG. 7, in step 150, the processing unit 74 determines whether or not the gas signal designation information has been accepted by the reception device 46. The gas signal designation information is information that can uniquely identify the gas signal already stored in the storage device 43. Here, as an example of the gas signal designation information, the current time and the current position information stored in the storage device 43 in association with the gas signal already stored in the storage device 43 are adopted. Here, the current time and the current position information are exemplified as the gas signal designation information, but the present invention is not limited to this, and for example, even if the current time or the current position information is adopted as the gas signal designation information. Alternatively, information that can uniquely identify the gas signal other than the current time or the current position information may be adopted as the gas signal designation information.

If the gas signal designation information is not received by the reception device 46 in step 150, the determination is denied and the process proceeds to step 152. If the gas signal designation information is received by the reception device 46 in step 150, the determination is affirmed and the process proceeds to step 154.

In step 152, the processing unit 74 determines whether or not the condition for terminating the gas type identification accuracy adjustment process (hereinafter referred to as “end condition”) is satisfied. As an example of the end condition, there is a condition that a predetermined time (for example, 1 minute) has elapsed since the execution of the gas type identification accuracy adjustment process is started. As another example of the end condition, there is a condition that the reception device 46 has received the instruction to end the gas type identification accuracy adjustment process.

If the end condition is not satisfied in step 152, the determination is denied and the process proceeds to step 150. If the end condition is not satisfied in step 152, the determination is affirmed and the gas type identification accuracy adjustment process is terminated.

In step 154, the processing unit 74 reads out the gas signal corresponding to the gas signal designation information received by the reception device 46 in step 150 from the storage device 43, and then proceeds to step 156.

In step 156, the processing unit 74 determines whether or not the gas type identification information has been received by the reception device 46. Here, the gas type identification information refers to information for specifying the type of the sample gas specified by the high-precision gas type identification device 14.

If the gas type identification information is not received by the reception device 46 in step 156, the determination is denied and the process proceeds to step 158. If the gas type identification information is received by the reception device 46 in step 156, the determination is affirmed and the process proceeds to step 160.

In step 158, the processing unit 74 determines whether or not the end condition is satisfied. If the end condition is not satisfied in step 158, the determination is denied and the process proceeds to step 156. If the end condition is satisfied in step 158, the determination is affirmed and the gas type identification accuracy adjustment process is terminated.

In step 160, the processing unit 74 determines whether or not the gas types are different. Here, the fact that the gas type is different means that the type of the sample gas indicated by the gas signal read in step 154 and the type of the sample gas specified by the gas type identification information received by the reception device 46 in step 156. Means different.

If the gas types are not different in step 160, the determination is denied and the gas type identification accuracy adjustment process is terminated. If the gas types are different in step 160, the determination is affirmed and the process proceeds to step 162.

In step 162, as shown in FIG. 11 as an example, the processing unit 74 starts the display 48 to display the accuracy adjustment necessity screen 48A, and then shifts to step 164. In the example shown in FIG. 11, the message 48A1, the “Yes” button 48A2, and the “No” button 48A3 are displayed on the accuracy adjustment necessity screen 48A.

In the example shown in FIG. 11, the message "Do you want to improve the accuracy of specifying the gas type?" Is shown as the message 48A1, but the present invention is not limited to this. That is, any message may be used as long as it is a message asking the user whether or not it is necessary to adjust the accuracy of specifying the type of the sample gas by the simple gas type specifying device 12. Further, if the information is perceptually asking the user whether or not the accuracy of specifying the type of the sample gas needs to be adjusted by the simple gas type specifying device 12, at least one of the message, the image, the symbol, and the voice information is used. There may be.

The "Yes" button 48A2 is pressed according to the instructions accepted by the receiving device 46 when agreeing to the question by message 48A1. On the other hand, the "No" button 48A3 is pressed according to the instruction received by the receiving device 46 when the question by the message 48A1 is not agreed.

In step 164, the processing unit 74 determines whether or not accuracy adjustment is necessary. Here, the case where the accuracy adjustment is necessary means the case where the "Yes" button 48A2 is pressed. On the other hand, the case where the accuracy adjustment is unnecessary means the case where the "No" button 48A3 is pressed.

If the accuracy adjustment is required in step 164, the determination is affirmed and the process proceeds to step 166. If the accuracy adjustment is not necessary in step 164, the determination is denied and the gas type identification accuracy adjustment process is terminated.

In step 166, as shown in FIG. 12 as an example, the processing unit 74 causes the display 48 to start displaying the operation mode instruction screen 48B, and then shifts to step 168. In the example shown in FIG. 12, the message 48B1, the gas type reflection mode button 48B2, the threshold value indicating mode button 48B3, and the concentration indicating mode button 48B4 are displayed.

In the example shown in FIG. 12, the message "Please specify one of the following operation modes" is shown as the message 48B1, but the present invention is not limited to this. That is, any message may be used as long as it is a message prompting the user to specify any of the gas type reflection mode, the threshold value instruction mode, and the concentration instruction mode. Further, as long as the information perceptibly prompts the user to specify any of the gas type reflection mode, the threshold value instruction mode, and the concentration instruction mode, at least one of the message, the image, the symbol, and the voice information can be used. There may be.

Here, the gas type reflection mode refers to an operation mode in which the type of the sample gas specified by the high-precision gas type identification device 14 is reflected in the specific result by the simple gas type identification device 12. That is, in the gas type reflection mode, among a plurality of threshold values, the type of the sample gas specified by the simple gas type specifying device 12 is the type of the sample gas specified by the high-precision gas type specifying device 14. Certain thresholds are changed. In the following, for convenience of explanation, the type of sample gas specified by the simple gas type specifying device 12 is also referred to as “simple sample gas type”. Further, in the following, for convenience of explanation, the type of the sample gas specified by the high-precision gas type specifying device 14 is also referred to as a “high-precision sample gas type”.

Here, the specific threshold value refers to a threshold value used in a determination for outputting a gas signal indicating a high-precision sample gas type to the output unit 70 among a plurality of threshold values. For example, when the high-precision sample gas type is LPG and the simplified sample gas type is atmospheric gas, the specific threshold value refers to "10 ppm" used in the determination in step 104.

Further, for example, when the high-precision sample gas type is a mixed gas of LPG and fermentation gas and the simple sample gas type is a mixed gas of LPG and city gas, the specific threshold value is steps 112, 114, 118. Refers to at least one of the thresholds used in each determination of. The thresholds used in the determination of step 112 are "1" and "100", the threshold value used in the determination of step 114 is "0.5", and the threshold value used in the determination of step 118 is "500 ppm". ".

Further, for example, when the high-precision sample gas type is a mixed gas of LPG and fermentation gas and the simple sample gas type is city gas, the specific threshold value is each of the determinations used in steps 124 and 128. Refers to at least one of the thresholds. The threshold value used in the determination in step 124 is “0.5”, and the threshold value used in the determination in step 128 is “500 ppm”.

Further, for example, when the high-precision sample gas type is LPG and the simple sample gas type is a mixed gas of LPG and city gas, the specific threshold is each of steps 102, 104, 112, 114, 118. Refers to at least one of each threshold used in the determination. The threshold used in the determination of step 102 is "30 ppm".

In addition, it is conceivable that the specific threshold value includes a threshold value that has already been changed. When the threshold value that has already been changed is included, for example, the gas signal output by the output unit 70 is first changed from the atmospheric gas signal to the LPG / fermentation gas signal, and then the gas output by the output unit 70. Refers to the case where the signal is changed from an LPG signal to a city gas signal.

In this case, in the above-mentioned change of the gas signal, each threshold value used in each determination of steps 102, 104, 112, 124 may include a specific threshold value, that is, a threshold value to be changed. On the other hand, in the later change of the gas signal, each threshold value used in each determination of steps 102, 112, 124, 128 may include a specific threshold value. In this case, all the threshold values used for the determination to output the gas signal indicating the same sample gas type as the sample gas type specified by the high-precision gas type specifying device 14, including the specific threshold value, are changed. It may be fine-tuned by 72 as needed.

That is, the threshold value used in the step in which the determination using the threshold value is performed is changed so that the decrease in the accuracy of specifying the type of sample gas that can be specified by the previous change of the gas signal is minimized. The optimization process may be executed by the unit 72.

The change unit 72 may execute the change of the gas signal after the change of the gas signal with priority over the change of the gas signal before, without executing the optimization process. That is, the change unit 72 ignores the change result of the previous gas signal, and only the change result of the later gas signal is the same type of sample gas as the type of sample gas specified by the high-precision gas type identification device 14. You may make it worth it. For example, first, the gas signal output by the output unit 70 is changed from the LPG / fermentation gas signal to the city gas signal, and then the gas signal output by the output unit 70 is changed from the city / fermentation gas signal to the fermentation gas signal. In the case of changing to, the changing unit 72 sets the threshold value used in the step in which the determination necessary for changing the gas signal output by the output unit 70 from the LPG / fermentation gas signal to the city gas signal is performed. Ignoring the changed result, the threshold used in the related determination step is changed so that the gas signal output by the output unit 70 is changed from the city / fermented gas signal to the fermented gas signal.

Here, the step in which the determination necessary for changing the gas signal output by the output unit 70 from the LPG / fermentation gas signal to the city gas signal is performed refers to, for example, steps 102, 112, 124, 128. On the other hand, the "related determination step" referred to here refers to a step in which a determination necessary for changing the gas signal output by the output unit 70 from the city / fermentation gas signal to the fermentation gas signal is performed. The step in which the determination necessary for changing the gas signal output by the output unit 70 from the city / fermentation gas signal to the fermentation gas signal is performed refers to, for example, steps 102, 112, 124, 128, 134, 136. ..

The threshold value instruction mode refers to an operation mode in which the user is instructed to change the specific threshold value, and the change unit 72 changes the specific threshold value according to the user's instruction. In the threshold value instruction mode, the reception device 46 receives an instruction of the change content of the specific threshold value, and the change unit 72 changes the specific threshold value according to the accepted instruction.

The concentration indication mode is a change unit 72 based on the type of the sample gas specified by the high-precision gas type identification device 14 and the concentration measured by the high-precision gas type identification device 14 for the gas component contained in the sample gas. Refers to the mode of operation that changes a specific threshold.

In the example shown in FIG. 12, the gas type reflection mode button 48B2 is pressed according to the instruction received by the reception device 46 when the user specifies the gas type reflection mode. The threshold value instruction mode button 48B3 is pressed according to the instruction received by the reception device 46 when the user specifies the threshold value instruction mode. The concentration instruction mode button 48B4 is pressed according to the instruction received by the reception device 46 when the user specifies the concentration instruction mode.

In step 168, the processing unit 74 determines whether or not the mode instruction information indicating the operation mode of any of the gas type reflection mode, the threshold value instruction mode, and the concentration instruction mode is accepted by the reception device 46.

If the mode instruction information is not received by the reception device 46 in step 168, the determination is denied and the process proceeds to step 170. If the mode instruction information is received by the reception device 46 in step 168, the determination is affirmed and the process proceeds to step 172.

In step 170, the processing unit 74 determines whether or not the end condition is satisfied. If the end condition is not satisfied in step 170, the determination is denied and the process proceeds to step 168. If the end condition is satisfied in step 170, the determination is affirmed and the gas type identification accuracy adjustment process is terminated.

In step 172, the processing unit 74 determines whether or not the gas type reflection mode is instructed by the mode instruction information received by the reception device 46. In step 172, if the gas type reflection mode is not instructed by the mode instruction information received by the reception device 46, the determination is denied and the process proceeds to step 174 shown in FIG. In step 172, when the gas type reflection mode is instructed by the mode instruction information received by the reception device 46, the determination is affirmed and the process proceeds to step 176.

In step 176, the change unit 72 changes a specific threshold value according to the gas type identification information received by the reception device 46 in step 156, and then ends the gas type identification accuracy adjustment process.

In step 176, a specific threshold value is changed by the changing unit 72 so that the type of the sample gas specified by the gas type specifying information received by the receiving device 46 in step 156 is specified by the simplified gas type specifying device 12. To. That is, in step 176, the output unit 70 outputs a gas signal indicating the same sample gas type as the sample gas type specified by the gas type identification information from the concentration information associated with the gas signal in step 154. As such, a specific threshold value is changed by the change unit 72.

In step 174 shown in FIG. 8, the processing unit 74 determines whether or not the threshold value instruction mode is instructed by the mode instruction information received by the reception device 46. In step 174, if the threshold value instruction mode is not instructed by the mode instruction information received by the reception device 46, the determination is denied and the process proceeds to step 190 shown in FIG. In step 174, when the threshold value instruction mode is instructed by the mode instruction information received by the reception device 46, the determination is affirmed and the process proceeds to step 178.

In step 178, the processing unit 74 causes the display 48 to start displaying the threshold value adjustment screen 48C, as shown in FIG. 13 as an example, and then shifts to step 180.

In the example shown in FIG. 13, the threshold input area 80, the message 81, and the scroll bar 82 are displayed.

The message 81 is a message prompting the user to input the threshold value. In the example shown in FIG. 13, the message "Please input the threshold value" is shown as an example of the message 81, but the present invention is not limited to this, and other messages prompting the user to input the threshold value. May be.

The threshold input area 80 is divided according to the type of gas component. In the example shown in FIG. 13, the threshold input areas 80A, 80B, and 80C are shown. The threshold input area 80A is an input area relating to the threshold value used in the determination in step 102 shown in FIG. 4, that is, the threshold value of the methane concentration. The threshold input area 80B is an input area relating to the threshold value of the concentration of the first propane. The threshold value of the concentration of the first propane refers to the threshold value used in the determination in step 104 shown in FIG. The threshold input area 80C is an input area relating to the threshold value of the first ethane concentration ratio. The threshold value of the first ethane concentration ratio refers to the threshold value used in the determination in step 114 shown in FIG.

In the following description, the threshold value of the concentration ratio of the specific combustible gas refers to the threshold value used in the determination in step 112 shown in FIG. Further, in the following description, the threshold value of the concentration of the first carbon dioxide gas refers to the threshold value used in the determination of step 118 shown in FIG. Further, in the following description, the threshold value of the concentration of the second carbon dioxide gas refers to the threshold value used in the determination of step 128 shown in FIG. Further, in the following description, the threshold value of the second ethane concentration ratio refers to the threshold value used in the determination of step 124 shown in FIG. Further, in the following description, the threshold value of the concentration of the second propane refers to the threshold value used in the determination of step 134 shown in FIG. Further, in the following description, the threshold value of the third ethane concentration ratio refers to the threshold value used in the determination of step 136 shown in FIG.

The threshold value input area 80A has a message 80A1, an inputtable range information 80A2, and an input field 80A3. Message 80A1 is a message indicating that it is an input region regarding the threshold value of the concentration of methane. The inputtable range information 80A2 is information indicating the upper limit and the lower limit of the threshold value that can be input to the input field 80A3. The input field 80A3 is a field in which the threshold value of the methane concentration is input. In the input field 80A3, a value corresponding to the instruction received by the reception device 46 is input.

The threshold value input area 80B has a message 80B1, an inputtable range information 80B2, and an input field 80B3. Message 80B1 is a message indicating that it is an input region regarding the threshold value of the concentration of the first propane. The inputtable range information 80B2 is information indicating the upper limit and the lower limit of the threshold value that can be input to the input field 80B3. The input field 80B3 is a field in which the threshold value of the concentration of the first propane is input. In the input field 80B3, a value corresponding to the instruction received by the reception device 46 is input.

The threshold input area 80C is a message indicating that the message 80C1 is an input area for the threshold value of the first ethane concentration ratio. The inputtable range information 80C2 is information indicating the upper limit and the lower limit of the threshold value that can be input to the input field 80C3. The input field 80C3 is a field in which the threshold value of the first ethane concentration ratio is input. In the input field 80C3, a value corresponding to the instruction received by the reception device 46 is input.

The scroll bar 82 scrolls the threshold value adjustment screen 48C in the vertical direction of FIG. 13 according to the instruction received by the reception device 46. When the threshold adjustment screen 48C is scrolled, for example, a threshold input area for the threshold of the concentration ratio of the specific combustible gas, a threshold input area for the threshold of the first carbon dioxide concentration, and a threshold for the threshold of the second carbon dioxide concentration. The display 48 displays an input area, a threshold input area for a second ethane concentration ratio threshold, a threshold input area for a second propane concentration threshold, and a threshold input area for a third ethane concentration ratio threshold.

In the threshold value adjustment screen 48C, the threshold value input areas other than the threshold value input areas 80A, 80B, 80C are also input areas related to the threshold value of the corresponding gas component for each gas component, similarly to the threshold value input areas 80A, 80B, 80C. A message indicating that, inputtable range information, and an input field are provided.

Hereinafter, for convenience of explanation, when it is not necessary to distinguish between the threshold input areas 80A, 80B, 80C and other threshold input areas, they are referred to as “threshold input areas” without reference numerals. Further, in the following, for convenience of explanation, when it is not necessary to separately explain the inputtable range information provided in each threshold input area, it is simply referred to as “inputtable range”. Further, in the following, when it is not necessary to distinguish and explain the input field provided in each threshold value input area, it is simply referred to as an "input field". In the present embodiment, the inputtable range is changed by the changing unit 72 according to the result of the above-mentioned optimization processing, but the present invention is not limited to this, and for example, the inputtable range is defined as. It may be fixed.

In step 180, the processing unit 74 determines whether or not the instruction of the threshold change content has been accepted by the reception device 46. That is, in step 180, it is determined whether or not a value has been input in the input field in the threshold value input area according to the instruction received by the reception device 46.

In step 180, if the reception device 46 has not received the instruction of the threshold change content, the determination is denied and the process proceeds to step 182. In step 180, when the reception device 46 receives the instruction of the change content of the threshold value, the determination is affirmed and the process proceeds to step 184.

In step 182, the processing unit 74 determines whether or not the end condition is satisfied. If the end condition is not satisfied in step 182, the determination is denied and the process proceeds to step 180. If the end condition is satisfied in step 182, the determination is affirmed and the gas type identification accuracy adjustment process is terminated.

In step 184, the processing unit 74 corresponds to the threshold value input to the input field in response to the instruction received by the reception device 46 in step 180 according to the gas type identification information received by the reception device 46 in step 156. Determine if it is a threshold. That is, in step 184, the same sample as the sample gas type specified by the gas type identification information is adopted by adopting the threshold value input to the input field according to the instruction received by the reception device 46 in step 180. It is determined whether or not a gas signal indicating the type of gas is output by the output unit 70.

In step 184, if the threshold value input to the input field in response to the instruction received by the reception device 46 in step 180 is not the threshold value corresponding to the gas type identification information received by the reception device 46 in step 156, it is determined. Is denied, and the process proceeds to step 186. In step 184, if the threshold value input to the input field in response to the instruction received by the reception device 46 in step 180 is the threshold value corresponding to the gas type identification information received by the reception device 46 in step 156, the determination is made. Is affirmed, and the process proceeds to step 188.

In step 188, the change unit 72 changes the specific threshold value, that is, the threshold value currently adopted, to the threshold value input to the input field according to the instruction received by the reception device 46 in step 180, and then changes the threshold value. , The gas type identification accuracy adjustment process is completed.

In step 186, the processing unit 74 executes the alert processing, and then proceeds to step 180. Here, the alert process refers to a process of notifying the user that the threshold value input in the input field is inappropriate.

The alert process is executed, for example, when the threshold value input in the input field is a value outside the inputtable range. Further, in the alert process, the threshold value input in the input field according to the instruction received by the reception device 46 in step 180 is adopted, so that the same sample as the sample gas type specified by the gas type identification information is adopted. This is executed when the gas signal indicating the type of gas is not output by the output unit 70.

In step 186, as shown in FIG. 14, as an alert process, a process of displaying the message 84 on the display 48 instead of the message 81 is executed by the processing unit 74. The alert process is not limited to the process of displaying the message 84 on the display 48. For example, at least one of the visible display process, the audible display process, and the permanent visible display process may be executed by the processing unit 74 as an alert process. Here, the visible display process refers to a process of visually displaying the message 81 on the display 48. The audible display process refers to a process of notifying the user by voice by a speaker (not shown). The permanent visible display process refers to a process of notifying a user by printing a message corresponding to a message 81 on a recording medium such as paper by a printer (not shown).

In step 190 shown in FIG. 9, the processing unit 74 starts the display 48 to display the density receiving screen 48D as shown in FIG. 15 as an example, and then proceeds to step 192.

As an example, as shown in FIG. 15, the concentration reception screen 48D has a message 48D1, a concentration input field 48D2, 48D3, 48D4, 48D5, and a confirmation button 48D6. The message 48D1 is a message prompting the user to input the concentration measured by the high-precision gas type identification device 14 for various gas components. Here, the various gas components refer to methane, propane, ethane, and carbon dioxide gas.

In FIG. 15, as an example of the message 48D1, the message "Please input the concentration measured by the high-precision gas type identification device" is shown. In the following, for convenience of explanation, the concentration measured by the high-precision gas type specifying device 14 for various gas components is referred to as “high-precision concentration”.

In the example shown in FIG. 15, in the concentration input field 48D2, a high-precision concentration for methane is input according to the instruction received by the reception device 46. In the concentration input field 48D3, a high-precision concentration for propane is input according to the instruction received by the reception device 46. The high-precision concentration of ethane is input to the concentration input field 48D4 according to the instruction received by the reception device 46. The high-precision concentration of carbon dioxide gas is input to the concentration input field 48D5 according to the instruction received by the reception device 46.

The confirmation button 48D6 is pressed in response to an instruction received by the reception device 46 when confirming the high-precision density input in the concentration input fields 48D2, 48D3, 48D4, 48D5.

In step 192, the processing unit 74 determines whether or not the confirmation button 48D6 is pressed after the high-precision concentration information for various gas components is received by the reception device 46. In step 192, if the confirmation button 48D6 is not pressed after the high-precision concentration information for various gas components is received by the reception device 46, the determination is denied and the process proceeds to step 194. In step 192, when the confirmation button 48D6 is pressed after the high-precision concentration information for various gas components is received by the reception device 46, the determination is affirmed and the process proceeds to step 196.

In step 194, the processing unit 74 determines whether or not the end condition is satisfied. If the end condition is not satisfied in step 194, the determination is denied and the process proceeds to step 192. If the end condition is satisfied in step 194, the determination is affirmed and the gas type identification accuracy adjustment process is terminated.

In step 196, the changing unit 72 changes a specific threshold value according to the high-precision concentration information received by the receiving device 46 in step 192, and then ends the gas type specifying accuracy adjusting process.

In step 196, in step 192, a gas signal indicating the same sample gas type as the sample gas type specified by the gas type identification information received by the reception device 46 in step 156 is output by the output unit 70. A specific threshold value is changed by the changing unit 72 according to the high-precision density information received by the receiving device 46. The "specific threshold value" referred to here is a determination necessary for outputting a gas signal indicating the same sample gas type as the sample gas type specified by the gas type identification information to the output unit 70. Refers to the threshold used in the step.

As described above, in the gas type identification system 10 according to the present embodiment, the type of the sample gas specified by the high-precision gas type identification device 14 is the type of the sample gas specified by the simple gas type identification device 12. (Step 160: Y), the sample gas is specified among a plurality of threshold values so that the type of the sample gas specified by the high-precision gas type specifying device 14 is specified by the simple gas type specifying device 12. The threshold value of is changed by the changing unit 72 (steps 176, 188, 196).

Therefore, according to the gas type identification system 10 according to the present embodiment, when the specification result by the high-precision gas type identification device 14 that specifies the type of the sample gas with higher accuracy than the simple gas type identification device 12 is not used. In comparison, the accuracy of specifying the type of sample gas by the simple gas type specifying device 12 can be improved. As a result, by utilizing the simple gas type specifying device 12, it is possible to reduce the frequency of use of the high-precision gas type specifying device 14.

Further, in the gas type identification system 10 according to the present embodiment, the gas type identification information is received by the reception device 46 (step 156: Y). When the type of the sample gas specified by the gas type identification information received by the reception device 46 is different from the type of the sample gas specified by the simple gas type identification device 12 (step 160: Y), the sample gas The specific threshold value among the plurality of threshold values is changed by the change unit 72 so that the type of the sample gas specified by the gas type identification information received by the reception device 46 is specified by the simple gas type identification device 12. Is done (step 176).

Therefore, according to the gas type identification system 10 according to the present embodiment, the time and effort required for improving the accuracy of specifying the sample gas type by the simple gas type identification device 12 is reduced as compared with the case where the gas type identification information is not used. be able to.

Further, in the gas type identification system 10 according to the present embodiment, the type of the sample gas specified by the gas type identification information received by the reception device 46 is the type of the sample gas specified by the simple gas type identification device 12. (Step 160: Y), the sample gas has a high-precision concentration so that the type of the sample gas specified by the gas type identification information received by the reception device 46 is specified by the simple gas type identification device 12. A specific threshold value among the plurality of threshold values is changed by the change unit 72 according to the information (step 196).

Therefore, according to the gas type specifying system 10 according to the present embodiment, the accuracy of specifying the type of the sample gas by the simple gas type specifying device 12 can be improved as compared with the case where the high-precision concentration information is not used.

Further, in the gas type specifying system 10 according to the present embodiment, the reception device 46 receives an instruction of the change content of the threshold value (step 180: Y). When the type of the sample gas specified by the high-precision gas type specifying device 14 is different from the type of the sample gas specified by the simple gas type specifying device 12 (step 160: Y), the sample gas has high accuracy. A specific threshold value among a plurality of threshold values is changed according to an instruction received by the reception device 46 so that the type of the sample gas specified by the gas type identification device 14 is specified by the simple gas type identification device 12. (Step 188).

Therefore, according to the gas type specifying system 10 according to the present embodiment, the specific threshold value is contrary to the user's intention as compared with the case where the specific threshold value among the plurality of threshold values is not changed according to the instruction received by the reception device 46. It is possible to suppress the use of the specified value.

In the above embodiment, the case where the simple gas type specifying device 12 and the high-precision gas type specifying device 14 are not communicably connected is illustrated, but the present invention is not limited to this. For example, as shown in FIG. 16, the simple gas type identification device 12 and the high-precision gas type identification device 14 may be communicably connected via the network 202.

In the example shown in FIG. 16, a plurality of simple gas type identification devices 12 are connected to the network 202 via the communication device 41 shown in FIG. Further, the high-precision gas type identification device 14 is connected to the network 202 via the communication device 41 shown in FIG. Therefore, the high-precision gas type identification device 14 transmits specific information to the specific simple gas type identification device 12 among the plurality of simple gas type identification devices 12 via the network 202. May be good. The specific information transmitted from the high-precision gas type identification device 14 is received by the communication device 41 of the specific simple gas type identification device 12 and is used for processing by the CPU 34. Here, the specific information includes, for example, threshold value change content instruction information indicating a threshold value change content instruction (see step 180 in FIG. 8), gas type identification information (see step 156 in FIG. 7), and high-precision concentration. Refers to at least one of the information (see step 196 of FIG. 9).

Further, as shown in FIG. 16, as an example, the server 204 may be connected to the network 202. In this case, the high-precision gas type identification device 14 transmits the sample gas information including the high-precision concentration information and the gas type identification information related to each other to the server 204, and the server 204 sends the high-precision gas type. The sample gas information transmitted from the specific device 14 is received. Then, the server 204 stores the received sample gas information. The server 204 accumulates high-precision concentration information for each gas type identification information, and calculates a statistical value of high-precision concentration indicated by the high-precision concentration information. The statistical value refers to, for example, an average value or a median value. The server 204 periodically or in response to a request from the simple gas type identification device 12, transmits a high-precision concentration statistical value to the simple gas type identification device 12 for each gas type identification information. The changing unit 72 of the simplified gas type specifying device 12 changes a specific threshold value according to the statistical value of the high-precision concentration for each gas type specifying information.

Further, in the above embodiment, the case where the gas type specifying accuracy adjusting device 16 is built in the simple gas type specifying device 12 has been described, but the present invention is not limited to this. For example, the server 204 shown in FIG. 16 may be equipped with a device corresponding to the gas type identification accuracy adjusting device 16. In this case, the server 204 changes the specific threshold value by controlling the simple gas type specifying device 12 via the network 202.

Further, in the above embodiment, the case where the gas signal is output to the storage device 43 and the display 48 has been described, but the present invention is not limited thereto. For example, the simple gas type identification device 12 transmits a gas signal to at least one external device (not shown) of a personal computer, a smart device, a server device, and the like capable of communicating with the simple gas type identification device 12. You may try to do it.

In this case, the external device may receive the gas signal and perform processing according to the received gas signal. As an example of processing according to a gas signal in an external device, at least one of a visible display by a display, an audible display by outputting sound by an audio reproduction device, and a permanent visible display recorded on paper using a printer. One display is mentioned. Further, as another example of the processing according to the gas signal in the external device, there is a processing of storing the gas signal in a specific memory.

Further, in the above embodiment, ethane and propane are exemplified as the specific combustible gas, but the present invention is not limited to this, and the specific combustible gas may be ethane, propane, and butane. In this case, the "concentration ratio of the specified combustible gas" calculated in step 112 is the sum of the concentration of ethane, the concentration of propane, and the concentration of butane indicated by the concentration information acquired in step 100. , Refers to the value obtained by multiplying the Y value calculated in step 110.

Further, in the above embodiment, the case where a plurality of types of gas component signals are selectively output using the concentration ratio of the specific combustible gas has been described, but a plurality of types of gases are described using the concentration of the specific combustible gas itself. The component signal may be selectively output.

Further, in the above embodiment, the case where a plurality of types of gas component signals are selectively output using the ethane concentration ratio has been described, but a plurality of types of gas component signals are selectively output using the ethane concentration itself. It may be done.

Further, in the above embodiment, the case where the gas type specifying accuracy adjustment program 53 is read from the storage device 43 is illustrated, but it is not always necessary to store the gas type specifying accuracy adjustment program 53 in the storage device 43 from the beginning. For example, as shown in FIG. 17, a gas type identification accuracy adjustment program is first applied to an arbitrary portable storage medium 300 such as an SSD, a USB (Universal Serial Bus) memory, or a DVD-ROM (Digital Versaille Disk Read Only Memory). 53 may be stored. In this case, the gas type identification accuracy adjustment program 53 of the storage medium 300 is installed in the simplified gas type identification device 12, and the installed gas type identification accuracy adjustment program 53 is executed by the CPU 34.

Further, the gas type identification accuracy adjustment program 53 is stored in a storage unit of another computer or server device connected to the simple gas type identification device 12 via a communication network (not shown), and the gas type identification accuracy is stored. The adjustment program 53 may be downloaded and installed in the simple gas type specifying device 12 in response to the request of the simple gas type specifying device 12. Further, the installation destination of the gas type specifying accuracy adjustment program 53 is not limited to the simple gas type specifying device 12, and may be, for example, the server 204 shown in FIG.

Further, the gas type identification accuracy adjustment process described in the above embodiment is merely an example. Therefore, it goes without saying that unnecessary steps may be deleted, new steps may be added, or the processing order may be changed within a range that does not deviate from the purpose.

Further, in the above embodiment, general-purpose processors such as CPUs 34 and 52 have been exemplified, but the present invention is not limited thereto. For example, a dedicated processor may be used instead of the general-purpose processor, or the distributed processing may be executed by the general-purpose processor and the dedicated processor.

Further, in the above embodiment, the case where the gas type identification accuracy adjustment process is realized by the software configuration using the computer is exemplified, but the present invention is not limited to this. For example, instead of the software configuration using a computer, the gas type identification accuracy adjustment process may be executed only by a hardware configuration such as Field-Programmable Gate Array (FPGA) or Application Specific Integrated Circuit (ASIC). .. Further, the gas type identification accuracy adjustment process may be executed in combination with the software configuration and the hardware configuration.

All documents, patent applications and technical standards described herein are to the same extent as if it were specifically and individually stated that the individual documents, patent applications and technical standards are incorporated by reference. Incorporated by reference in the book.

10 Gas type identification system 12 Simple gas type identification device 14 High-precision gas type identification device 16 Gas type identification accuracy adjustment device 34 CPU
40 Control device 46 Reception device 53 Gas type identification accuracy adjustment program 70 Output unit 72 Change unit

Claims (9)

A simple formula for specifying the type of sample gas by comparing the concentration of each of the plurality of types of gas components with the corresponding threshold value among the plurality of threshold values set for each of the plurality of types of gas components. The type of the sample gas specified by the high-precision gas type specifying device that specifies the type of the sample gas with higher accuracy than the gas type specifying device is the type of the sample gas specified by the simple gas type specifying device. When the sample gas is different from the above, a specific threshold value among the plurality of threshold values is specified so that the type of the sample gas specified by the high-precision gas type identification device is specified by the simple gas type identification device. Including the change part to change
The types of the sample gas include gas derived from LPG alone, gas derived from atmospheric gas, gas derived from city gas alone, gas derived from fermentation gas alone, gas derived from a mixed gas of LPG and fermentation gas, and LPG. And a gas derived from a mixed gas of city gas, a gas derived from a mixed gas of city gas and fermented gas, and a gas derived from a mixed gas of city gas, LPG, and fermented gas.
The high-precision gas type identification device identifies the type of the sample gas based on the analysis result by the gas chromatograph.
Gas type identification accuracy adjustment device. Further including a reception unit for receiving gas type identification information for specifying the type of the sample gas specified by the high-precision gas type identification device.
The change unit is described when the type of the sample gas specified by the gas type identification information received by the reception unit is different from the type of the sample gas specified by the simple gas type identification device. The first aspect of the present invention is to change the specific threshold value of the sample gas so that the type of the sample gas specified by the gas type identification information received by the reception unit is specified by the simple gas type identification device. The described gas type identification accuracy adjustment device. The high-precision gas type identification device has a function of measuring the concentration of each of the plurality of types of gas components.
The change unit is described when the type of the sample gas specified by the gas type identification information received by the reception unit is different from the type of the sample gas specified by the simple gas type identification device. With respect to the sample gas, the type of the sample gas specified by the gas type identification information received by the reception unit is measured by the high-precision gas type identification device so that the type of the sample gas is specified by the simple gas type identification device. The gas type specifying accuracy adjusting device according to claim 2, wherein the specific threshold value is changed according to the concentration. Further including a reception unit for receiving an instruction of the change content of the specific threshold value,
When the type of the sample gas specified by the high-precision gas type identification device is different from the type of the sample gas specified by the simple gas type identification device, the change unit describes the sample gas. Claim 1 to change the specific threshold value according to the instruction received by the reception unit so that the type of the sample gas specified by the high-precision gas type identification device is specified by the simple gas type identification device. The gas type identification accuracy adjustment device described in. The gas type specifying accuracy adjusting device according to any one of claims 1 to 4.
The type of the sample gas is specified based on the result of comparing the concentration of each of the plurality of types of gas components with the corresponding threshold value among the plurality of threshold values set for each of the plurality of types of gas components. And the output section that outputs the gas signal to
Simple gas type identification device including. A simple formula for specifying the type of sample gas by comparing the concentration of each of the plurality of types of gas components with the corresponding threshold value among the plurality of threshold values set for each of the plurality of types of gas components. Gas type identification device and
The gas type specifying accuracy adjusting device according to any one of claims 1 to 4.
Gas species identification system including. The gas type identification system according to claim 6, further comprising a high-precision gas type identification device that specifies the type of the sample gas with higher accuracy than the simple gas type identification device. A sample is obtained by comparing the concentration of each of the plurality of types of gas components with the corresponding threshold value among the plurality of threshold values set for each of the plurality of types of gas components by a simple gas type identification device. Identify the type of gas,
The high-precision gas type identification device identifies the type of the sample gas with higher accuracy than the simple gas type identification device based on the analysis result by the gas chromatograph .
When the type of the sample gas specified by the high-precision gas type identification device and the type of the sample gas specified by the simple gas type identification device are different from each other by the change unit, the sample gas is described. Including changing a specific threshold value among the plurality of threshold values so that the type of the sample gas specified by the high-precision gas type identification device is specified by the simple gas type identification device.
The types of the sample gas include gas derived from LPG alone, gas derived from atmospheric gas, gas derived from city gas alone, gas derived from fermentation gas alone, gas derived from a mixed gas of LPG and fermentation gas, and LPG. And a gas derived from a mixed gas of city gas, a gas derived from a mixed gas of city gas and fermented gas, and a gas derived from a mixed gas of city gas, LPG, and fermented gas.
Gas type identification accuracy adjustment method. Computer,
A program for functioning as the change unit included in the gas type specifying accuracy adjusting device according to any one of claims 1 to 4.

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