Gas sensor system, gas sensor calibration method and procedure

Abstract

This invention provides a gas sensor system, a gas sensor calibration method, and a procedure. The gas sensor system comprises: a first gas sensor device having a transmitting unit that transmits first calibration information for calibrating the gas concentration of a measured object calculated based on the output of the first gas sensor; the transmitting unit transmits the first calibration information and reliability information indicating the calibration reliability of the first gas sensor device; and a second gas sensor device having a receiving unit that receives the first calibration information and reliability information transmitted by the transmitting unit, and a calibration unit that calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the first calibration information received by the receiving unit; wherein, if the calibration reliability of the first gas sensor device received by the receiving unit is higher than a reference calibration reliability, the calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the received first calibration information.

Description

Technical Field

[0001] This invention relates to a gas sensor system, a gas sensor calibration method, and a gas sensor calibration procedure. Background Technology

[0002] Patent document 1 describes "providing an accurate carbon dioxide concentration measurement system" (abstract).

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: Japanese Patent Application Publication No. 2014-228518 Summary of the Invention

[0006] In a first aspect of the present invention, a gas sensor system is provided. The gas sensor system includes: a first gas sensor device having a transmitting unit that transmits first calibration information for calibrating a gas concentration of a measured object calculated based on the output of the first gas sensor; the transmitting unit transmits the first calibration information and reliability information indicating the calibration reliability of the first gas sensor device; and a second gas sensor device having a receiving unit and a calibration unit, the receiving unit receiving the first calibration information and the reliability information transmitted by the transmitting unit, and the calibration unit calibrating the gas concentration of the measured object calculated based on the output of the second gas sensor based on the first calibration information received by the receiving unit. If the calibration reliability of the first gas sensor device received by the receiving unit is higher than a reference calibration reliability, the calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the received first calibration information.

[0007] The second gas sensor device may further include a storage unit that stores reference reliability information representing the reference calibration reliability. Specifically, if the calibration reliability of the first gas sensor device received by the receiving unit is higher than the reference calibration reliability, the storage unit updates the reference calibration reliability based on the calibration reliability of the first gas sensor device received by the receiving unit.

[0008] It is possible that the object whose gas concentration is calculated based on the output of the first gas sensor is the same as the object whose gas concentration is calculated based on the output of the second gas sensor.

[0009] The first gas sensor device may include a first gas sensor. The first gas sensor device may be a portable terminal.

[0010] The second gas sensor device can be configured in the internal space of the object to be measured, where the gas concentration is calculated based on the output of the second gas sensor.

[0011] The second gas sensor device may include a second gas sensor. The second gas sensor device may be a portable terminal.

[0012] It is permissible that, when the self-calibration reliability of the second gas sensor device is below a predetermined second threshold and the calibration reliability of the first gas sensor device exceeds a first threshold, the calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the received first calibration information.

[0013] The second gas sensor device may further include a position information acquisition unit that acquires the position information of the second gas sensor device. Reliability information may include the position information of the first gas sensor device. The calibration unit can calibrate the gas concentration of the measured object calculated based on the output of the second gas sensor based on the received first calibration information, using the distance between the position of the first gas sensor device and the position of the second gas sensor device acquired by the position information acquisition unit.

[0014] A gas sensor system may include multiple first gas sensor devices. The receiving unit can receive first calibration information and reliability information from each of the multiple first gas sensor devices. The calibration unit can weight the calibration reliability of each of the multiple first gas sensor devices and calibrate the gas concentration of the target object calculated based on the output of a second gas sensor based on the weighted calibration reliability.

[0015] The calibration unit can calibrate the gas concentration of the measured object calculated based on the output of the second gas sensor based on the highest calibration reliability among the calibration reliability of each of the multiple first gas sensor devices.

[0016] In a second aspect of the present invention, a gas sensor calibration method is provided. The gas sensor calibration method includes the following steps: a sending step, in which a sending unit sends first calibration information and reliability information, wherein the first calibration information is calibration information used to calibrate the gas concentration of a measured object calculated based on the output of a first gas sensor, and the reliability information is reliability information representing the calibration reliability of the first gas sensor device; a receiving step, in which a receiving unit receives the first calibration information and reliability information sent in the sending step; and a calibration step, in which a calibration unit calibrates the gas concentration of a measured object calculated based on the output of a second gas sensor based on the first calibration information received in the receiving step. The calibration step is as follows: if the calibration reliability of the first gas sensor device received in the receiving step is higher than a reference calibration reliability, the calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the received first calibration information.

[0017] The gas sensor calibration method may further include a storage step, in which a storage unit stores the reliability information received in the receiving step. The storage step may include an update step, in which, if the calibration reliability of the first gas sensor device received in the receiving step is higher than the reference calibration reliability, the storage unit updates the reference calibration reliability based on the calibration reliability of the first gas sensor device received in the receiving step.

[0018] It is possible that the object whose gas concentration is calculated based on the output of the first gas sensor is the same as the object whose gas concentration is calculated based on the output of the second gas sensor.

[0019] A second gas sensor can be installed in a second gas sensor device. The second gas sensor device can be configured within the internal space of the object being measured, where the gas concentration is calculated based on the output of the second gas sensor.

[0020] The second gas sensor can be installed in the second gas sensor device. The calibration step can be as follows: if the self-calibration reliability of the second gas sensor device is below a predetermined second threshold and the calibration reliability of the first gas sensor device exceeds a first threshold, the calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the first calibration information received in the receiving step.

[0021] The second gas sensor can be disposed on the second gas sensor device. The gas sensor calibration method may further include a position information acquisition step, in which the position information acquisition unit acquires the position information of the second gas sensor device. The reliability information may include the position information of the first gas sensor device. The calibration step may be as follows: the calibration unit calibrates the gas concentration of the measurement object calculated based on the output of the second gas sensor based on the received first calibration information, according to the distance between the position of the first gas sensor device and the position of the second gas sensor device acquired in the position information acquisition step.

[0022] The receiving step may be as follows: The receiving unit receives the first calibration information and reliability information of each of the multiple first gas sensor devices. The calibration step may be as follows: The calibration unit weights the calibration reliability of each of the multiple first gas sensor devices, and calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the weighted calibration reliability.

[0023] The calibration procedure may be as follows: The calibration department calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the highest calibration reliability among the calibration reliability of each of the multiple first gas sensor devices.

[0024] In a third aspect of the invention, a gas sensor calibration procedure is provided. This gas sensor calibration procedure enables a computer to perform a gas sensor calibration method.

[0025] Furthermore, the above description of the invention does not enumerate all the features of the invention. In addition, sub-combinations of these feature groups can also form other inventions. Attached Figure Description

[0026] Figure 1 This is a diagram illustrating an example of gas concentration calibration in a first gas sensor device 100 and a second gas sensor device 200 according to an embodiment of the present invention.

[0027] Figure 2 This is a block diagram illustrating an example of a gas sensor system 400 according to one embodiment of the present invention.

[0028] Figure 3 This is a block diagram illustrating another example of a gas sensor system 400 according to one embodiment of the present invention.

[0029] Figure 4 This is a block diagram illustrating another example of a gas sensor system 400 according to one embodiment of the present invention.

[0030] Figure 5 This is a block diagram illustrating another example of a gas sensor system 400 according to one embodiment of the present invention.

[0031] Figure 6 This is a diagram illustrating an example of gas concentration calibration in a first gas sensor device 100, a second gas sensor device 200, and a third gas sensor device 300 according to an embodiment of the present invention.

[0032] Figure 7 This is a diagram illustrating an example of gas concentration calibration in gas sensor devices 150 and 250 according to an embodiment of the present invention.

[0033] Figure 8 This is a block diagram illustrating an example of a gas sensor device 150 and a gas sensor device 250 according to an embodiment of the present invention.

[0034] Figure 9 This is a block diagram illustrating another example of a gas sensor device 150 and a gas sensor device 250 according to one embodiment of the present invention.

[0035] Figure 10 This is a flowchart illustrating an example of a gas sensor calibration method according to an embodiment of the present invention.

[0036] Figure 11 Show Figure 10 An example of the details of calibration step S104 in the process.

[0037] Figure 12 This is a flowchart illustrating another example of a gas sensor calibration method according to one embodiment of the present invention.

[0038] Figure 13 This is a flowchart illustrating an example of a gas sensor calibration method according to an embodiment of the present invention.

[0039] Figure 14 This is a flowchart illustrating an example of a gas sensor calibration method according to an embodiment of the present invention.

[0040] Figure 15 Show Figure 14 An example of the details of calibration step S304 in the process.

[0041] Figure 16 This is a flowchart illustrating another example of a gas sensor calibration method according to one embodiment of the present invention.

[0042] Figure 17This is a diagram illustrating an example of a computer 2200 that can be embodied, either entirely or partially, according to an embodiment of the present invention, of a gas sensor system 400, a gas sensor device 150, or a gas sensor device 250. Detailed Implementation

[0043] The present invention will now be described through embodiments thereof; however, these embodiments are not intended to limit the invention as defined in the claims. Furthermore, the combinations of features described in the embodiments are not necessarily all necessary for the solution of the invention.

[0044] Figure 1 This is a diagram illustrating an example of gas concentration calibration in a first gas sensor device 100 and a second gas sensor device 200 according to an embodiment of the present invention. In this example, the measurement object 501 is outdoors, and the measurement object 502 is indoors.

[0045] In this example, the organism 90 has a first gas sensor device 100. The first gas sensor device 100 may be a portable terminal. The organism 90 is, for example, a human. Figure 1 The diagram shows the movement of an organism 90 with a first gas sensor device 100 from the target 501 to the target 502.

[0046] Gas 503 is present in the object of measurement 501. Gas 503 can be CO2 (carbon dioxide), CH4 (methane), or ethanol. A gas sensor 600 for measuring the concentration of gas 503 in the object of measurement 501 can be configured in the object of measurement 501. When the object of measurement 501 is outdoors, the gas sensor 600 measures the concentration of gas 503 in the outdoor air. The gas sensor 600 is, for example, an optical element. The gas sensor 600 can be a gas sensor based on non-dispersive infrared absorption (NDIR), a gas sensor based on photoacoustic spectroscopy, a gas sensor that uses a solid electrolyte to detect the gas, or a MEMS (Micro Electro Mechanical Systems) gas sensor. There are no particular limitations on the detection method of the gas sensor 600.

[0047] A gas 504 is present in the internal space 508 of the object being measured 502. Gas 504 can be CO2 (carbon dioxide), CH4 (methane), or ethanol. The internal space 508 can be a space isolated from the object being measured 501. The internal space 508 can be an enclosed space. For example, the internal space 508 is a room.

[0048] A second gas sensor device 200 is disposed in the object to be measured 502. In this example, the second gas sensor device 200 is disposed in the internal space 508. The second gas sensor device 200 may also be a portable terminal.

[0049] The characteristics of the gas sensor 600 sometimes change over time. In the case where the gas sensor 600 is an optical element and is a CO2 (carbon dioxide) sensor that measures gas concentration using infrared light, the characteristics of the gas sensor 600 refer to the characteristics of that optical element, etc. These characteristics sometimes change over time. Therefore, it is preferable that the gas sensor 600 be calibrated. Preferably, the gas sensor 600 is calibrated periodically.

[0050] Gas sensor 600 can self-calibrate and can also be calibrated by other gas sensors 600. Self-calibration refers to calibrating the gas sensor 600 itself based on the gas concentration value calculated by the gas sensor 600. In the self-calibration of the gas sensor 600, for example, a constant gas concentration value within a predetermined period, or the maximum or minimum gas concentration value within a predetermined period, can be used. For example, if the gas sensor 600 is a CO2 (carbon dioxide) sensor, the output of the gas sensor 600 can be self-calibrated using the ABC (Automatic Baseline Correction or Automatic Background Calibration) algorithm.

[0051] When the object of measurement 501 is outdoors and the gas sensor 600 is a CO2 (carbon dioxide) sensor, the output of the gas sensor 600 can be calibrated at a time when the probability of the CO2 (carbon dioxide) concentration in the air being a reference value (e.g., 400 ppm) is high. The output of the gas sensor 600 can be calibrated at this time in such a way that the CO2 (carbon dioxide) concentration calculated based on the output of the gas sensor 600 reflects this reference value. This time refers to, for example, a period of time when the activity of living organism 90 is easily suppressed (e.g., late at night).

[0052] Gas sensor 600 can transmit calibration information related to the calibration of gas sensor 600. This calibration information is designated as calibration information Ic. Calibration information Ic is calibration information used to calibrate the concentration of gas 503 in the measurement object 501 calculated based on the output of gas sensor 600. Calibration information Ic is information related to calibration used to bring the concentration of gas 503 close to the true value of the concentration. In the case that gas sensor 600 is a CO2 (carbon dioxide) sensor, calibration information Ic can be calibration information used to calibrate the CO2 (carbon dioxide) concentration in a manner that allows the CO2 (carbon dioxide) concentration calculated based on the output of gas sensor 600 to reflect the true value of the CO2 (carbon dioxide) concentration when there is a high probability that the true value of the CO2 (carbon dioxide) concentration is a reference value (e.g., 400 ppm). Gas sensor 600 can wirelessly transmit calibration information Ic to the open space in the measurement object 501.

[0053] Figure 2 This is a block diagram illustrating an example of a gas sensor system 400 according to an embodiment of the present invention. The gas sensor system 400 includes a first gas sensor device 100 and a second gas sensor device 200. The first gas sensor device 100 has a transmitting unit 13. The first gas sensor device 100 may include a receiving unit 10, a control unit 15, a calibration unit 14, a display unit 12, and an AD conversion unit 114.

[0054] The control unit 15 is, for example, a CPU (Central Processing Unit). The first gas sensor device 100 can be a portable terminal equipped with this CPU. The portable terminal can include a smartphone, tablet computer, or other portable computer. The first gas sensor device 100 can be a portable terminal equipped with this CPU, memory, and interface, etc.

[0055] The display unit 12 is, for example, a display or monitor. If the first gas sensor device 100 is a portable terminal, the display unit 12 may be the display of that portable terminal.

[0056] The first gas sensor device 100 may include a first gas sensor 11. When the first gas sensor device 100 is disposed in the measurement object 501, the first gas sensor 11 measures the concentration of gas 503 in the measurement object 501. The first gas sensor 11 may be a CO2 (carbon dioxide) sensor, a CH4 (methane) sensor, or an ethanol sensor. The first gas sensor 11 may be used in conjunction with a gas sensor 600 (see reference 600). Figure 1 The types of gases measured are the same as those in gas 503 (reference). Figure 1The measurement is performed. That is, if the gas sensor 600 is a CO2 (carbon dioxide) sensor, the first gas sensor 11 can also be a CO2 (carbon dioxide) sensor.

[0057] The characteristics of the first gas sensor 11 sometimes change over time. Therefore, it is preferable that the first gas sensor 11 is calibrated. In this example, the receiving unit 10 receives calibration information Ic sent by the gas sensor 600. In this example, the calibration unit 14 uses the calibration information Ic to calculate the measurement object 501 (refer to) based on the output of the first gas sensor 11. Figure 1 Gas 503 (refer to) Figure 1 The concentration of gas 503 is calibrated. Therefore, the measured concentration of gas 503 obtained by the first gas sensor 11 is more accurate than before calibration. The calibration unit 14 can calibrate the concentration of gas 503 (refer to...) when the first gas sensor device 100 is positioned in the object of measurement 501 (in this example, when the organism 90 is outdoors). Figure 1 The concentration of ) is calibrated.

[0058] The AD converter 114 converts the output of the analog signal from the first gas sensor 11 into a digital signal. The calibration unit 14 can then use calibration information Ic to adjust the calculated gas 503 (refer to) based on the output of the first gas sensor 11. Figure 1 The concentration of gas 503 is calibrated. That is, the calibration unit 14 can calibrate the calculated concentration of gas 503 after calculating it. The calibration unit 14 can also calculate and calibrate the concentration of gas 503 based on the output of the first gas sensor 11 and the calibration information Ic.

[0059] In this example, the calibration unit 14 includes a calculation unit 110 and a storage unit 112. The calculation unit 110 calculates the concentration of gas 503 based on the digital signal from the first gas sensor 11 obtained by the AD conversion unit 114. The storage unit 112 stores the concentration of gas 503 calculated by the calculation unit 110. The storage unit 112 can store the correlation between the concentration of gas 503 calculated by the calculation unit 110 and the calibration information Ic. This correlation is set as correlation relationship Cr. The correlation relationship Cr can be a correlation function or a correlation table.

[0060] The arithmetic unit 110 can calculate the first calibration information Ic' based on the calibration information Ic received by the receiving unit 10 and the correlation relationship Cr stored in the storage unit 112. The first calibration information Ic' is used to calculate the measurement object 501 (refer to) based on the output of the first gas sensor 11. Figure 1 Gas 503 (refer to) Figure 1Calibration information for calibrating the concentration of gas 503 (reference). The first calibration information Ic' is related to the calibration information used to calibrate the concentration of gas 503 (reference). Figure 1 This information pertains to calibration, indicating that the concentration is close to the true value. Calibration information Ic' may differ from or be consistent with calibration information Ic.

[0061] The arithmetic unit 110 is, for example, a CPU (Central Processing Unit). The arithmetic unit 110 and the control unit 15 can also be a single CPU.

[0062] The transmitting unit 13 transmits the first calibration information Ic' from the first gas sensor 11. This can be done in a living organism 90 (refer to...). Figure 1 ) Remaining on the test object 501 (reference) Figure 1 In the case of the organism 90 moving from the object 501 to the open space in the object 502 (see reference 502), the transmitting unit 13 transmits the first calibration information Ic' to the open space in the object 501. This can be done when the organism 90 moves from the object 501 to the object 502 (see reference 502). Figure 1 In the case of [missing information], the transmitting unit 13 transmits the first calibration information Ic' to the internal space 508. The transmitting unit 13 can wirelessly transmit the first calibration information Ic'.

[0063] Furthermore, if the first gas sensor device 100 does not have a first gas sensor 11, the first gas sensor device 100 may not have an AD converter 114. When the first gas sensor device 100 does not have a first gas sensor 11 and an AD converter 114, the analog signal output of the first gas sensor 11 can be converted into a digital signal by an AD converter 114 externally disposed in the first gas sensor device 100. The digital signal obtained by the AD converter 114 can be sent to the first gas sensor device 100. The same applies when the second gas sensor device 200 does not have a second gas sensor 21 (described later).

[0064] The second gas sensor device 200 includes a receiving unit 20 and a calibration unit 24. The second gas sensor device 200 may include a control unit 25, a display unit 22, a transmitting unit 23, and an AD conversion unit 124. The functions of the control unit 25, the display unit 22, and the transmitting unit 23 are the same as those of the control unit 15, the display unit 12, and the transmitting unit 13 in the first gas sensor device 100.

[0065] The receiving unit 20 receives first calibration information Ic' sent by the transmitting unit 13 of the first gas sensor device 100. The second gas sensor device 200 may have a second gas sensor 21. The calibration unit 24, based on the first calibration information Ic' received by the receiving unit 20, calculates the measurement object 502 (refer to) based on the output of the second gas sensor 21. Figure 1 ) gas 504 (refer to Figure 1 The concentration of gas 504 is calibrated by the second gas sensor 21. As a result, the measured concentration of gas 504 obtained by the second gas sensor 21 is more accurate than before calibration.

[0066] The AD converter 124 converts the output of the analog signal from the second gas sensor 21 into a digital signal. The calibration unit 24 can then use the first calibration information Ic' to perform calibration on the gas 504 (refer to...) calculated based on the output of the second gas sensor 21. Figure 1 The concentration of gas 504 is calibrated. That is, the calibration unit 24 can calibrate the calculated concentration of gas 504 after calculating it. The calibration unit 24 can also calculate and calibrate the concentration of gas 504 based on the output of the second gas sensor 21 and the first calibration information Ic'.

[0067] As described above, the first calibration information Ic' is used to calculate the measurement object 501 (refer to) based on the output of the first gas sensor 11. Figure 1 Gas 503 (refer to) Figure 1 The calibration information is used to calibrate the concentration of gas 503 (refer to the calibration information). With the first gas sensor device 100 positioned in the measurement object 501 (in this example, the organism 90 is outdoors), the calibration unit 14 calibrates the concentration of gas 503 (refer to the calibration information). Figure 1 When the concentration of gas 504 in the first gas sensor device 100 is calibrated and the first gas sensor device 100 moves from the measurement object 501 to the measurement object 502, the first gas sensor 11 has a high probability of accurately measuring the concentration of gas 504 in the measurement object 502. Therefore, the calibration unit 24 of the second gas sensor device 200 can easily and accurately calibrate the concentration of gas 504 calculated based on the output of the second gas sensor 21 by means of the first calibration information Ic'.

[0068] The gas sensor system 400 may include a storage unit 122. In this example, the second gas sensor device 200 includes a storage unit 122. In this example, the calibration unit 24 includes a calculation unit 120 and a storage unit 122. The functions of the calculation unit 120 and the storage unit 122 may be the same as those of the calculation unit 110 and the storage unit 112 in the calibration unit 14 of the first gas sensor device 100, respectively.

[0069] The storage unit 122 can store the correlation between the concentration of gas 504 calculated by the calculation unit 120 and the first calibration information Ic'. This correlation is set as correlation Cr'. The calculation unit 120 calculates the second calibration information Ic based on the first calibration information Ic' received by the receiving unit 20 and the correlation Cr' stored in the storage unit 122.

[0070] The second calibration information Ic is used to calculate the measurement object 502 (refer to) based on the output of the second gas sensor 21. Figure 1 ) gas 504 (refer to Figure 1 The calibration information is used to calibrate the concentration of gas 504 (reference). The second calibration information, "Ic", is related to the calibration information used to calibrate the concentration of gas 504 (reference). Figure 1 The second calibration information Ic” is related to the calibration of a concentration that is close to the true value of the concentration. The second calibration information Ic” may be different from or consistent with the first calibration information Ic’.

[0071] In the gas sensor system 400, the receiving unit 20 receives first calibration information Ic', and the calibration unit 24 uses the first calibration information Ic' to perform calibration on the gas 504 (refer to) calculated based on the output of the second gas sensor 21. Figure 1 The concentration of gas 504 is calibrated based on the output of the second gas sensor 21. Thus, the gas sensor system 400 is able to calibrate the concentration of gas 504 calculated based on the output of the second gas sensor 21.

[0072] In interior space 508 (reference) Figure 1 In the case of an enclosed space isolated from the outside, the CO2 concentration in the interior space 508 sometimes does not change to the aforementioned baseline value (e.g., 400 ppm) even during periods when the activity of living organisms 90 is easily suppressed (e.g., late at night). When the CO2 concentration in the interior space 508 does not change to this baseline value, the second gas sensor 21 has difficulty accurately detecting the measured gas 504 (refer to...). Figure 1 The concentration of ) is self-calibrated.

[0073] In this example, with the first gas sensor device 100 disposed in the measurement object 501 (in this example, with the organism 90 present outdoors), the calibration unit 14 calculates the gas 503 (refer to) based on the output of the first gas sensor 11. Figure 1 The concentration of ) was calibrated. Therefore, in organism 90, the concentration of the test subject 501 (reference) was used for calibration. Figure 1 Move to interior space 508 (reference) Figure 1 In the case of a gas sensor device 100, the first gas sensor device 100 can easily and accurately determine the concentration of gas 504 in the internal space 508.

[0074] In this example, after the organism 90 moves into the internal space 508, the transmitting unit 13 sends the first calibration information Ic'. Therefore, even when the second gas sensor device 200 is configured in an environment where self-calibration is difficult (in this example, the internal space 508), the gas sensor system 400 can calibrate the concentration of gas 504 calculated based on the output of the second gas sensor 21. The gas sensor system 400 can be configured with the second gas sensor device 200 in the object of measurement 502 (see reference 1). Figure 1 The concentration of gas 504, calculated based on the output of the second gas sensor 21, is calibrated under the condition of ).

[0075] Calibration information Ic can be the measurement object 501 (reference) Figure 1 Gas 503 in ) (refer to Figure 1 The indicated value of the concentration of gas 503. This indicated value of the concentration of gas 503 can refer to the concentration based on gas sensor 600 (refer to...). Figure 1 The output of the calculation is the concentration of gas 503.

[0076] A predetermined distance dp1 is set between gas sensor 600 and first gas sensor 11. When the distance between gas sensor 600 and first gas sensor 11 is less than dp1, there is a high probability that gas sensor 600 and first gas sensor 11 are positioned in the measurement object 501 where the concentration of gas 503 is the same. Therefore, it is preferable that the concentration of gas 503 calculated based on the output of gas sensor 600 is consistent with the concentration of gas 503 calculated based on the output of first gas sensor 11. Therefore, when the distance between gas sensor 600 and first gas sensor 11 is less than dp1, the calibration information Ic can be an indication of the concentration of gas 503 in the measurement object 501. Distance dp1 is, for example, 10 m. When gas sensor 600 and first gas sensor 11 are configured in the internal space 508, distance dp1 can also be 5 m.

[0077] Calibration information Ic can also be the measurement object 501 (refer to...) Figure 1 Gas 503 in ) (refer to Figure 1 The calibration amount is based on the concentration of the gas sensor 600 (reference). Figure 1 The concentration of gas 503 calculated based on the output of the first gas sensor 11 is set as concentration C0. The concentration of gas 503 calculated based on the output of the first gas sensor 11 is set as concentration C1. The calibration value of the concentration of gas 503 can refer to the difference between concentration C0 and concentration C1.

[0078] Alternatively, when the calibration amount for the concentration of gas 503 is the difference between concentration C0 and concentration C1, the calibration unit 14 calibrates the output of gas 503 from the first gas sensor 11 by an amount corresponding to this difference. The calibration unit 14 can deflect the output of gas 503 from the first gas sensor 11 by an amount corresponding to this difference.

[0079] Assuming that the state of gas sensor 600 is the same as that of the first gas sensor 11, the calibration information Ic is preferably gas 503 (refer to). Figure 1 The calibration amount of the concentration of gas 503. The state of gas sensor 600 being the same as that of the first gas sensor 11 is, for example, a high probability that the degradation state of gas sensor 600 is the same as that of the first gas sensor 11. A high probability that the degradation state of gas sensor 600 is the same as that of the first gas sensor 11 can be a situation that satisfies at least one of the following: the most recent calibration period of gas sensor 600 is the same as the most recent calibration period of the first gas sensor 11; the environment in which gas sensor 600 is installed is similar to the environment in which the first gas sensor 11 is installed; and the specifications of gas sensor 600 are the same as those of the first gas sensor 11. The environment in which gas sensor 600 is installed can refer to at least one of the following: temperature, humidity, and concentration of gas 503 at the location where gas sensor 600 is installed.

[0080] The first calibration information Ic' can be the measurement object 502 (refer to...). Figure 1 Gas 504 in ) (refer to Figure 1 The indicated value of the concentration of gas 504. This indicated value of the concentration of gas 504 may refer to the concentration of gas 504 calculated based on the output of the first gas sensor 11.

[0081] The predetermined distance between the first gas sensor 11 and the second gas sensor 21 is set as distance dp2. Similarly to the case of calibration information Ic, if the distance between the first gas sensor 11 and the second gas sensor 21 is less than distance dp2, the first calibration information Ic' can be an indication of the concentration of gas 504 in the object to be measured 502.

[0082] Similar to the case of calibration information Ic, the first calibration information Ic' can also be the measurement object 502 (refer to...). Figure 1 Gas 504 in ) (refer to Figure 1 The calibration amount of the concentration of gas 504. Assuming that the state of the first gas sensor 11 is the same as that of the second gas sensor 21, and for the same reasons as those described above in the case of calibration information Ic, the first calibration information Ic' is preferably the calibration amount of the concentration of gas 504.

[0083] Gas 504 (referring to the gas sensor 11) calculated based on the output of the first gas sensor 11 Figure 1 The concentration of gas 504 is set as concentration C1'. The concentration of gas 504 calculated based on the output of the second gas sensor 21 is set as concentration C2. Alternatively, if the calibration amount of the concentration of gas 504 is the difference between concentration C1' and concentration C2, the calibration unit 24 calibrates the concentration C2 calculated based on the output of the second gas sensor 21 by an amount corresponding to the difference.

[0084] The transmitting unit 23 of the second gas sensor device 200 can also transmit the concentration C2 to the first gas sensor device 100. Figure 2 In the diagram, a thick dashed arrow indicates the path through which concentration C2 is sent to the first gas sensor device 100. When the transmitting unit 23 sends concentration C2 to the first gas sensor device 100, concentration C2 can be the concentration of gas 504 before calibration by the calibration unit 24. The receiving unit 10 of the first gas sensor device 100 can receive this concentration C2. The processing unit 110 of the first gas sensor device 100 can calculate the difference between concentration C1' and concentration C2. The transmitting unit 13 can send this difference to the receiving unit 20. The calibration unit 24 can calibrate concentration C2 to an amount corresponding to the difference received by the receiving unit 20.

[0085] The first gas sensor device 100 can also perform self-calibration. When the first gas sensor 11 is a CO2 (carbon dioxide) sensor, the first gas sensor device 100 can perform self-calibration using the ABC (Automatic Baseline Correction or Automatic Background Calibration) algorithm. In the measured object 501 (refer to...) Figure 1 In an environment capable of self-calibration (e.g., outdoors) and where the first gas sensor device 100 is disposed in the measurement object 501, the first gas sensor device 100 can perform self-calibration while disposed in the measurement object 501. The concentration C2 calculated based on the output of the second gas sensor 21 can also be calibrated based on the first calibration information Ic' of the self-calibrated first gas sensor 11.

[0086] The first gas sensor device 100 may or may not include a first gas sensor 11. In this example, the first gas sensor device 100 includes a first gas sensor 11. Even when the first gas sensor device 100 does not include a first gas sensor 11, the output of the first gas sensor 11 can be sent to the calibration unit 14. The same applies to the second gas sensor device 200.

[0087] In this example, the object 502 whose concentration C1' is calculated based on the output of the first gas sensor 11 is the same as the object 502 whose concentration C2 is calculated based on the output of the second gas sensor 21. The fact that the object 502 for which concentration C1' is calculated is the same as the object 502 for which concentration C2 is calculated can mean that the type of the object gas measured by the first gas sensor device 100 is the same as the type of the object gas measured by the second gas sensor device 200. The object gas measured by the first gas sensor device 100 and the object gas measured by the second gas sensor device 200 can be CO2 (carbon dioxide), CH4 (methane), or ethanol.

[0088] The same object 502 for measuring concentration C1' and the same object 502 for measuring concentration C2 can also mean that the first gas sensor 11 and the second gas sensor 21 share the same space (in this example, the internal space 508). Figure 1 The same space refers to at least one of the following: the temperature or humidity in the space is the same; the IDs of the near-field wireless (wifi (registered trademark) etc.) are the same; and the amplitude and frequency of the sound waves acquired by the portable terminal are the same when the first gas sensor device 100 and the second gas sensor device 200 are portable terminals.

[0089] Furthermore, in the measurement object 502, the type of the gas for which the concentration C1' is calculated based on the output of the first gas sensor 11 can be different from the type of the gas for which the concentration C2 is calculated based on the output of the second gas sensor 21. The type of the gas for which the concentration C1' is calculated based on the output of the first gas sensor 11 is designated as gas type G1. The type of the gas for which the concentration C2 is calculated based on the output of the second gas sensor 21 is designated as gas type G2. When gas type G1 and gas type G2 are different, the first calibration information Ic' can include information about gas type G1. The calibration unit 24 can also calibrate the concentration of gas of gas type G2 calculated based on the output of the second gas sensor based on this first calibration information Ic'.

[0090] Furthermore, when the first gas sensor 11 is disposed in the measurement object 501 and the second gas sensor 21 is disposed in the measurement object 502, there is a high probability that the concentration of gas 503 in the measurement object 501 is different from the concentration of gas 504 in the measurement object 502. Therefore, when the first gas sensor 11 is disposed in the measurement object 501 and the second gas sensor 21 is disposed in the measurement object 502, the calibration unit 24 may not calibrate the concentration C2 calculated based on the output of the second gas sensor 21.

[0091] Figure 3 This is a block diagram illustrating another example of a gas sensor system 400 according to an embodiment of the present invention. The calibration reliability of the first gas sensor device 100 is defined as calibration reliability R1. Reliability information representing calibration reliability R1 is defined as reliability information Ir1. Reliability information Ir1 represents information about the reliability of calibration performed on the first gas sensor device 100 when the first gas sensor device 100 has been calibrated. Reliability information Ir1 may include at least one of the following: information about the elapsed time since the most recent calibration, information about the elapsed time since the first gas sensor 11 was installed, information about the calibration method, information related to the diversity of calibration sources, information about the number of calibrations, information about the calibration frequency, information about the gas concentration at the time of calibration, and environmental information at the time of calibration.

[0092] The shorter the elapsed time since the most recent calibration, the higher the calibration reliability R1 is likely to be. The reliability information Ir1 can be stored in the storage unit 112.

[0093] The information regarding calibration means whether the first gas sensor device 100 has undergone self-calibration or has been calibrated by other sensors (such as gas sensor 600, see reference). Figure 1 The calibration information is as follows: When the first gas sensor device 100 is calibrated by other sensors, the calibration information may include at least one of the distance between the first gas sensor and the other sensor, and the calibration status of the other sensor. Furthermore, the first gas sensor device 100 can self-calibrate the first gas sensor 11 by calibrating the output of the first gas sensor 11 by the calibration unit 14.

[0094] Information related to the diversity of calibration sources may include sensors that serve as calibration sources for the first gas sensor 11 (e.g., gas sensor 600 (reference)). Figure 1 The calibration source includes at least one of the number of sensors and the number of sensor specifications. Sensor specifications refer, for example, to the sensor's technical specifications (spec). When the first gas sensor device 100 performs self-calibration, the number of sensors serving as calibration sources and the number of sensor specifications may also include the first gas sensor 11. The more sensors serving as calibration sources, the higher the calibration reliability R1 tends to be. The more sensor specifications serving as calibration sources, the higher the calibration reliability R1 tends to be.

[0095] The calibration count information relates to the number of times the first gas sensor device 100 has been calibrated within the period from a predetermined past point in time to the present. This calibration count can include cases where the first gas sensor device 100 has performed self-calibration and cases where the first gas sensor device 100 has been calibrated by other sensors. The more calibration counts, the higher the calibration reliability R1 tends to be.

[0096] The calibration frequency information refers to the number of times the first gas sensor device 100 is calibrated within a predetermined time period. This calibration count can include cases where the first gas sensor device 100 has performed self-calibration and cases where it has been calibrated by other sensors. A higher calibration frequency generally results in a higher calibration reliability R1.

[0097] The gas concentration information during calibration refers to the gas concentration information at the time of calibration of the first gas sensor device 100. The calibration of the first gas sensor device 100 may include self-calibration and calibration performed using other sensors. When the first gas sensor device 100 is calibrated when a gas concentration outside a predetermined range is measured (e.g., an anomaly in gas concentration), the calibration reliability R1 is likely to become lower compared to when calibration is performed when a reference gas concentration is measured.

[0098] The environmental information during calibration may include the space where the first gas sensor 11 is configured during the calibration of the first gas sensor device 100 (e.g., the measurement object 501 (reference)). Figure 1 The temperature, humidity, or air pressure of the first gas sensor 11 may be lower than that of the sensor when it is calibrated at a temperature (e.g., anomalies in temperature), humidity (e.g., anomalies in humidity), or air pressure (e.g., anomalies in air pressure) that is not within a predetermined range.

[0099] The transmitting unit 13 can also transmit reliability information Ir1. The receiving unit 20 of the second gas sensor device 200 can also receive reliability information Ir1. The calibration unit 24 can, based on the first calibration information Ic' and the calibration reliability R1 of the first gas sensor device 100, perform calibration on the gas 504 (refer to) calculated based on the output of the second gas sensor 21. Figure 1 The calibration unit 24 can also calibrate the concentration of gas 504 (refer to) calculated based on the output of the second gas sensor 21, based on the first calibration information Ic', according to the reliability information Ir1. Figure 1 The concentration of ) is calibrated.

[0100] The calibration reliability of the second gas sensor device 200 is set as calibration reliability R2. Reliability information representing calibration reliability R2 is set as reliability information Ir2. Reliability information Ir2 indicates the reliability of calibration performed on the second gas sensor device 200 after calibration. Reliability information Ir2 may contain the same information as reliability information Ir1 described above. Reliability information Ir2 and reliability information Ir1 received by the receiving unit 20 can be stored in the storage unit 122.

[0101] A predetermined threshold for calibration reliability R1 is set as the first threshold Rth1. The first threshold Rth1 can be determined according to the measurement object 501 (refer to...). Figure 1 Unlike other systems, when the calibration reliability R1 exceeds the first threshold Rth1, the user of the gas sensor system 400 can trust the gas 503 calculated based on the output of the first gas sensor 11 (refer to...). Figure 1 The concentration of ).

[0102] A predetermined threshold for calibration reliability R2 is set as the second threshold Rth2. The second threshold Rth2 can be determined according to the measurement object 502 (refer to...). Figure 1 Unlike other systems, when the calibration reliability R2 exceeds the second threshold Rth2, the user of the gas sensor system 400 can trust the gas 504 calculated based on the output of the second gas sensor 21 (see reference). Figure 1 The concentration of ). In addition, the second threshold Rth2 and the first threshold Rth1 can be the same or different.

[0103] The reliability information Ir2 may include information on the reliability of self-calibration in the second gas sensor device 200. Self-calibration refers to calibration that is not based on other gas sensors (in this example, such as the first gas sensor device 100). In the case that the second gas sensor 21 is a CO2 (carbon dioxide) sensor, self-calibration may refer to calibration based on the ABC (Automatic Baseline Correction or Automatic Background Calibration) algorithm.

[0104] The self-calibration reliability information in the second gas sensor device 200 may include information indicating whether the second gas sensor device 200 has a self-calibration function or not. The second gas sensor device 200 can perform self-calibration by calibrating the output of the second gas sensor 21 by the calibration unit 24.

[0105] It is permissible that, when the calibration reliability R1 is below the first threshold Rth1, the calibration unit 24 does not base its calculation of gas 504 (refer to) on the output of the second gas sensor 21 based on the first calibration information Ic'. Figure 1 The concentration of gas 504 (refer to) is calibrated based on the output of the second gas sensor 21. This calibration can be performed when the self-calibration reliability R2 of the second gas sensor device 200 is below the second threshold Rth2 and the calibration reliability R1 exceeds the first threshold Rth1. Figure 1 The self-calibration reliability R2 of the second gas sensor device 200 is below the second threshold Rth2, which may include cases where the second gas sensor device 200 does not have a self-calibration function. The self-calibration reliability R2 of the second gas sensor device 200 being below the second threshold Rth2 may include cases where self-calibration is difficult due to reasons such as the second gas sensor device 200 being an older sensor device.

[0106] The calibration unit 24 can compare the calibration reliability R1 of the first gas sensor device 100 received by the receiving unit 20 with the calibration reliability R2 of the second gas sensor device 200. The calibration reliability R2 can include the self-calibration calibration reliability R2 of the second gas sensor device 200 and the calibration reliability R2 when the second gas sensor device 200 is calibrated by other sensors.

[0107] When the calibration reliability R1 of the first gas sensor device 100 is higher than the calibration reliability R2 of the second gas sensor device 200, the calibration unit 24 can, based on the first calibration information Ic' received by the receiving unit 20, adjust the calibration of gas 504 (refer to) calculated based on the output of the second gas sensor 21. Figure 1 The concentration of gas 504 is calibrated. By calibrating the concentration of gas 504, the concentration of gas 504 calculated based on the output of the second gas sensor 21 can be made more accurate. When the calibration reliability R1 is lower than the calibration reliability R2, the calibration unit 24 may not need to calibrate the concentration of gas 504 (refer to) calculated based on the output of the second gas sensor 21. Figure 1 The concentration of gas 504 (refer to) can be calibrated based on the output of the second gas sensor 21, or the second calibration information Ic can be used to calibrate the concentration of gas 504 (refer to) based on the output of the second gas sensor 21. Figure 1 The concentration of ) is calibrated.

[0108] Alternatively, when the calibration reliability R2 is below the second threshold Rth2, the transmitting unit 23 of the second gas sensor device 200 can send a request to other gas sensor devices (e.g., at least one of gas sensor 600 and first gas sensor device 100) to send calibration information to the second gas sensor device 200 for calibrating the output of the second gas sensor 21. When the calibration reliability R2 is below the second threshold Rth2, the second gas sensor device 200 can enter a standby state. This facilitates a reduction in the power consumption of the second gas sensor device 200.

[0109] The calibration reliability R1 of the first gas sensor device 100 received by the receiving unit 20 can be stored in the storage unit 122. The calibration reliability R1 stored in the storage unit 122 can refer to the past calibration reliability R1 of the first gas sensor device 100. The calibration unit 24 can compare the calibration reliability R1 stored in the storage unit 122 with the current calibration reliability R1 of the first gas sensor device 100 received by the receiving unit 20. If the current calibration reliability R1 of the first gas sensor device 100 is higher than the calibration reliability R1 of the first gas sensor device 100 stored in the storage unit 122, the calibration unit 24 can perform calibration based on the first calibration information Ic' on the gas 504 (refer to) calculated based on the output of the second gas sensor 21. Figure 1 The concentration of ) is calibrated.

[0110] The calibration reliability, which serves as the reference for calibrating the concentration of gas 504 calculated based on the output of the second gas sensor 21, is set as the reference calibration reliability Cs. The reference reliability information representing the reference calibration reliability Cs is set as the reference reliability information Irs. The reference calibration reliability Cs can be at least one of the calibration reliability R1 of the first gas sensor device 100 and the calibration reliability R2 of the second gas sensor device 200. If the calibration reliability R1 of the first gas sensor device 100 received by the receiving unit 20 is higher than the reference calibration reliability Cs, the calibration unit 24 calibrates the gas concentration of the measurement object 502 calculated based on the output of the second gas sensor 21 based on the first calibration information Ic'.

[0111] The storage unit 122 can store the reference reliability information Cs. If the calibration reliability R1 of the first gas sensor device 100 received by the receiving unit 20 is higher than the reference calibration reliability Cs, the storage unit 122 can update the reference calibration reliability Cs based on the received calibration reliability R1 and store the updated reference calibration reliability Cs. The calibration unit 24 can then calibrate the gas concentration of the measurement object 502 calculated based on the output of the second gas sensor 21 based on the first calibration information Ic', according to the updated reference reliability Cs.

[0112] Alternatively, if the calibration reliability R1 of the first gas sensor device 100 received by the receiving unit 20 is higher than the reference calibration reliability Cs, the storage unit 122 updates the reference calibration reliability Cs to the calibration reliability R1 and stores the updated reference calibration reliability Cs. Or, if the calibration reliability R1 is lower than the reference calibration reliability Cs, the storage unit 122 does not update the reference calibration reliability Cs.

[0113] The reference reliability information Cs stored in the storage unit 122 can be the updated reference reliability information Cs based on the calibration reliability R1, or it can be the calibration reliability R2. The calibration reliability R2 can include the self-calibration calibration reliability R2 of the second gas sensor device 200 and the calibration reliability R2 when the second gas sensor device 200 is calibrated by other sensors.

[0114] Figure 4 This is a block diagram illustrating another example of a gas sensor system 400 according to an embodiment of the present invention. In this example of the gas sensor system 400, the first gas sensor device 100 further includes a position information acquisition unit 16, and the second gas sensor device 200 further includes a position information acquisition unit 26. The gas sensor system 400 in this example differs from the above-mentioned points... Figure 3 The examples shown are different.

[0115] The location information acquisition unit 16 acquires the location information of the first gas sensor device 100. The location information acquisition unit 26 acquires the location information of the second gas sensor device 200. The location information acquisition unit 16 and the location information acquisition unit 26 are, for example, Global Positioning System (GPS).

[0116] The position information of the first gas sensor device 100 is set as position information Ip1. Reliability information Ir1 may include position information Ip1. The position information of the second gas sensor device 200 is set as position information Ip2. Reliability information Ir2 may include position information Ip2.

[0117] The distance between the position of the first gas sensor device 100 and the position of the second gas sensor device 200 obtained by the position information acquisition unit 26 is defined as distance d. As described above, the predetermined distance between the position of the first gas sensor 11 and the position of the second gas sensor 21 is defined as distance dp2. Distance dp2 may refer to the first gas sensor 11 and the second gas sensor 21 being arranged in the same space (e.g., ...). Figure 1The distance with high probability of the internal space 508. The same space may refer to the same type of the target gas whose concentration C1' is calculated based on the output of the first gas sensor 11 and the same type of target gas whose concentration C2 is calculated based on the output of the second gas sensor 21, or it may refer to the same ID of the near-field wireless (wifi (registered trademark) etc.) in the space where the first gas sensor 11 is installed and the same ID of the near-field wireless in the space where the second gas sensor 21 is installed.

[0118] The calibration unit 24 can perform calibration on gas 504 (refer to) calculated based on the output of the second gas sensor 21, based on the distance d and the first calibration information Ic'. Figure 1 The calibration unit 24 calibrates the concentration of gas 504 calculated based on the output of the second gas sensor 21 when the distance d is less than the distance dp2. Alternatively, when the distance d is greater than or equal to the distance dp2, the calibration unit 24 does not calibrate the concentration of gas 504 calculated based on the output of the second gas sensor 21. The calibration unit 24 may also calibrate the concentration of gas 504 (refer to) calculated based on the output of the second gas sensor 21 according to the distance d and the first calibration information Ic'. Figure 1 The concentration of ) is calibrated.

[0119] Furthermore, the reliability information Ir1 may also include user information for the first gas sensor device 100. The user information may include multiple usernames and the past usage history of the first gas sensor device 100 for each username. The past usage history may include past usage scenarios. Past usage scenarios, for example, refer to situations where a specific user intentionally exhales into the first gas sensor device 100. The calibration reliability R1 when the first gas sensor device 100 is used by that specific user may be lower than the calibration reliability R1 when it is used by other users. This specific user can be stored as a person requiring vigilance in the storage unit 122.

[0120] Figure 5 This is a block diagram illustrating another example of a gas sensor system 400 according to an embodiment of the present invention. The gas sensor system 400 in this example is similar to... Figure 2 The difference in the illustrated gas sensor system 400 is that, in this example, the gas sensor system 400 includes multiple first gas sensor devices 100 (first gas sensor device 100-1 to first gas sensor device 100-n). Figure 5 The illustrations of gas 503 in the measurement object 501 and gas 504 in the measurement object 502 are omitted.

[0121] The first gas sensor devices 100-1 to 100-n can each be possessed by one of the multiple organisms 90 (organisms 90-1 to 90-n). The multiple first gas sensor devices 100 can move from the target object 501 to the target object 502 by the movement of the multiple organisms 90.

[0122] In this example, the first gas sensor devices 100-1 to 100-n each have receiving units 10-1 to 10-n, calibration units 14-1 to 14-n, and transmitting units 13-1 to 13-n. In this example, the first gas sensor devices 100-1 to 100-n each have first gas sensors 11-1 to 11-n. Figure 5 The internal structure of the first gas sensor device 100 is omitted.

[0123] Multiple gas sensors 600 (gas sensor 600-1 to gas sensor 600-n) can be configured in the measurement object 501. Gas sensors 600-1 to gas sensor 600-n can each send calibration information Ic1 to calibration information Icn. Calibration information Ic1 to calibration information Icn can be the same or different from each other.

[0124] The calibration unit 14-1 can use calibration information Ic1 to calibration information Icn to calculate the gas 503 (refer to) of the measurement object 501 based on the output of the first gas sensor 11-1. Figure 1 The concentration of gas 503 in the target object 501, calculated based on the output of the first gas sensor 11-2, is calibrated based on calibration information Ic1 to Icn. Similarly, the calibration unit 14-n can calibrate the concentration of gas 503 in the target object 501, calculated based on the output of the first gas sensor 11-n, based on calibration information Ic1 to Icn.

[0125] In this example, the calibration unit 14 of a first gas sensor device 100 calculates the gas 503 (refer to) based on the output of the first gas sensor 11 of the first gas sensor device 100, using multiple calibration information Ic. Figure 1 The concentration of the first gas sensor 11 is calibrated. Therefore, the output of the first gas sensor 11 can be easily calibrated to a more accurate concentration than if calibrated based on a calibration information Ic.

[0126] In this example, calibration units 14-1 to 14-n each include arithmetic units 120-1 to 120-n. Arithmetic units 120-1 to 120-n can respectively calculate the first calibration information Ic'1 to Ic'n. Based on the first calibration information Ic'1 to Ic'n, the gas concentration calculated from the outputs of the first gas sensors 11-1 to 11-n can be calibrated.

[0127] Transmitting units 13-1 to 13-n can respectively transmit first calibration information Ic'1 to Ic'n. This can be achieved in multiple organisms 90 (refer to...). Figure 1 When the object is moved into the measurement object 502, the transmitting unit 13-1 to the transmitting unit 13-n respectively transmit the first calibration information Ic'1 to the first calibration information Ic'n to the internal space 508.

[0128] The receiving unit 20 of the second gas sensor device 200 can receive first calibration information Ic' from each of the multiple first gas sensor devices 100. In this example, the receiving unit 20 receives first calibration information Ic'1 to first calibration information Ic'n transmitted by the transmitting units 13-1 to 13-n respectively.

[0129] The calibration unit 24 of the second gas sensor device 200 can perform calibration on gas 504 (refer to) calculated based on the output of the second gas sensor 21, based on multiple first calibration information Ic'. Figure 1 The concentration of gas 504 is calibrated based on the first calibration information Ic'1 to Ic'n. In this example, the calibration unit 24 calibrates the concentration of gas 504 based on the first calibration information Ic'1 to Ic'n. Therefore, the output of the second gas sensor 21 can be easily calibrated to a more accurate concentration than if calibrated based on a single first calibration information Ic'.

[0130] The calibration reliability of the first gas sensors 11-1 to 11-n is set as calibration reliability R11 to calibration reliability R1n, respectively. The reliability information representing calibration reliability R11 to calibration reliability R1n is set as reliability information Ir1-1 to reliability information Ir1-n, respectively. The transmitting unit 13 of each of the plurality of first gas sensor devices 100 (refer to...) Figures 2-4 It can send reliability information Ir1 to each of the first gas sensor devices 100. In this example, the transmitting unit 13-1 to the transmitting unit 13-n send reliability information Ir1-1 to reliability information Ir1-n respectively.

[0131] The receiving unit 20 of the second gas sensor device 200 can receive reliability information Ir1-1 to reliability information Ir1-n. The calibration unit 24 can weight the calibration reliability R11 to calibration reliability R1n. Weighting the calibration reliability R11 to calibration reliability R1n means giving a higher weight to the calibration reliability R1 with higher reliability than the calibration reliability R1 with lower reliability. The calibration unit 24 can use the weighted calibration reliability R1 to calculate the gas 504 (refer to) based on the output of the second gas sensor 21. Figure 1 The concentration of ) is calibrated.

[0132] Reliability information Ir1-1 to reliability information Ir1-n can be stored in storage unit 122. The calculation unit 120 can calculate the weights of calibration reliability R11 to calibration reliability R1n based on the reliability information Ir1-1 to reliability information Ir1-n stored in storage unit 122. The calculation unit 120 can calculate the second calibration information Ic” by weighting the calibration reliability R11 to calibration reliability R1n according to this weight. The calibration unit 24 can use this second calibration information Ic” to calculate the gas 504 (refer to) calculated based on the output of the second gas sensor 21. Figure 1 The concentration of gas 504 is calibrated. As a result, the concentration of gas 504 can be easily calibrated to a more accurate concentration than when calibrated based on the second calibration information Ic” weighted by the uncalibrated reliability R11 to the calibration reliability R1n.

[0133] If the reliability information Ir1 of the first gas sensor device 100, whose calibration reliability R1 is lower than the first threshold Rth1, is included in any of the reliability information Ir1-1 to the reliability information Ir1-n, the calculation unit 120 may exclude the calibration reliability R1 that is lower than the first threshold Rth1 when calculating the weight. Excluding the calibration reliability R1 when calculating the weight may mean that the calculation unit 120 calculates the weight of that calibration reliability R1 as zero.

[0134] The calibration unit 24 can also use the highest calibration reliability R1 among calibration reliability R11 to calibration reliability R1n to calculate the gas 504 (refer to) based on the output of the second gas sensor 21. Figure 1 The concentration of gas 504 can be calibrated by setting the weight of the highest calibration reliability R1 to 1 and the weight of other calibration reliability R1 to zero.

[0135] Figure 6This diagram illustrates an example of gas concentration calibration in a first gas sensor device 100, a second gas sensor device 200, and a third gas sensor device 300 according to an embodiment of the present invention. The third gas sensor device 300 may include a receiving unit 30, a third gas sensor 31, a display unit 32, a transmitting unit 33, a calibration unit 34, and a control unit 35. The block diagram of the third gas sensor device 300 may be compared with... Figures 2-4 The block diagrams of the first gas sensor device 100 and the second gas sensor device 200 shown are the same.

[0136] In this example, the first gas sensor device 100 moves from the measurement object 501 to the measurement object 505. The measurement object 505 can be outdoors or indoors. When the measurement object 505 is outdoors, the gas concentration of the measurement object gas calculated based on the output of the first gas sensor 11 in the measurement object 501 can be the same as or different from the gas concentration of the measurement object gas calculated based on the output of the first gas sensor 11 in the measurement object 505.

[0137] In this example, in the measurement object 505, the transmitting unit 23 of the first gas sensor device 100 transmits first calibration information Icm. The transmitting units 23 of the first gas sensor devices 100-1 to 100-n can transmit first calibration information Icm1 to Icmn respectively. In this example, in the measurement object 505, the receiving unit 30 of the third gas sensor device 300 receives the first calibration information Icm. The receiving units 30 of the third gas sensor devices 300-1 to 300-n can receive first calibration information Icm1 to Icmn respectively.

[0138] In this example, the calibration unit 34 of the third gas sensor device 300 calibrates the concentration of the gas of the measurement object 505 calculated based on the output of the third gas sensor 31, based on the first calibration information Icm received by the receiving unit 30. The calibration units 34 of the third gas sensor devices 300-1 to 300-n can respectively calibrate the concentration of the gas of the measurement object 505 calculated based on the output of the third gas sensor 31 of each of the third gas sensor devices 300-1 to 300-n, based on the first calibration information Icm1 to Icmn.

[0139] In this example, a third gas sensor device 300, whose gas concentration has been calibrated for measurement object 505, moves from measurement object 505 to measurement object 502. In this example, the transmitting unit 33 of the third gas sensor device 300 transmits calibration information Ic'. The transmitting units 33 of the third gas sensor devices 300-1 to 300-n can respectively transmit calibration information Ic'1 to calibration information Ic'n. In this example, in measurement object 502, the receiving unit 20 of the second gas sensor device 200 receives the calibration information Ic'. The receiving unit 20 of the second gas sensor device 200 can receive calibration information Ic'1 to calibration information Ic'n.

[0140] In this example, the calibration unit 24 of the second gas sensor device 200 uses the calibration information Ic' received by the receiving unit 20 to calculate the gas 504 of the measurement object 502 (refer to) based on the output of the second gas sensor 21. Figure 1 The concentration of ) is used for calibration. In this example, the calibration information Ic' reflects multiple types of calibration information (calibration information Ic and calibration information Icm). Therefore, compared to the case where calibration information Ic' reflects only one type of calibration information (e.g. Figure 5 In the case of (the situation where), the second gas sensor device 200 is easier to calibrate more accurately.

[0141] Figure 7 This is a diagram illustrating an example of gas concentration calibration in gas sensor devices 150 and 250 according to an embodiment of the present invention. Gas sensor device 150 can be used with... Figures 1-6 The first gas sensor device 100 shown is identical. Gas sensor device 250 can be used with... Figures 1-6 The second gas sensor device 200 shown is the same.

[0142] Figure 8 This is a block diagram illustrating an example of a gas sensor device 150 and a gas sensor device 250 according to an embodiment of the present invention. The gas sensor device 150 can be used with... Figure 4 The first gas sensor device 100 shown is identical. Gas sensor device 250 can be used with... Figure 4 The second gas sensor device 200 shown is the same.

[0143] The gas sensor device 150 includes a transmitting unit 13. The transmitting unit 13 transmits first calibration information Ic' to the second gas sensor device 250. The first calibration information Ic' is used to calculate the measurement object 501 (refer to) based on the output of the first gas sensor 11. Figure 7 Gas 503 (refer to) Figure 1The calibration information is based on the concentration of the gas sensor. The first gas sensor device 100 can perform self-calibration or calibration based on other sensors (such as gas sensor 600, see reference 600). Figure 7 The calibration was performed.

[0144] The gas sensor device 250 includes a receiving unit 20 and a calibration unit 24. The receiving unit 20 receives first calibration information Ic'. The calibration unit 24 uses the first calibration information Ic' received by the receiving unit 20 to perform a calibration on the gas 504 (refer to) calculated based on the output of the second gas sensor 21. Figure 7 The concentration of ) is calibrated.

[0145] Gas sensor device 150 may or may not include a first gas sensor 11. In this example, gas sensor device 150 includes a first gas sensor 11. Gas sensor device 250 may or may not include a second gas sensor 21. In this example, gas sensor device 250 includes a second gas sensor 21. When gas sensor device 150 is a portable terminal, the first gas sensor 11 may be provided in gas sensor device 150. When gas sensor device 250 is a portable terminal, the second gas sensor 21 may be provided in gas sensor device 250.

[0146] It can be used in a living organism 90 (refer to) having a first gas sensor device 150 Figure 7 When the organism 90 remains in the test object 501, the transmitting unit 13 sends first calibration information Ic' to the open space in the test object 501. The organism 90 can then move to the test object 502 (see reference). Figure 1 In the case of [missing information], the transmitting unit 13 transmits the first calibration information Ic' to the internal space 508. The transmitting unit 13 can wirelessly transmit the first calibration information Ic'.

[0147] and Figure 1 and Figure 2 Similarly, in the example shown, the object 502 whose concentration C1' is calculated based on the output of the first gas sensor 11 can be the same as the object 502 whose concentration C2 is calculated based on the output of the second gas sensor 21. As described above, the same object 502 for calculating concentration C1' and object 502 for calculating concentration C2 can mean that the type of the object gas measured by the first gas sensor device 150 and the type of the object gas measured by the second gas sensor device 250 are the same in object 502. The object gas measured by the first gas sensor device 150 and the object gas measured by the second gas sensor device 250 can be CO2 (carbon dioxide), CH4 (methane), or ethanol.

[0148] As mentioned above, the same object 502 for measuring the concentration C1' and the same object 502 for measuring the concentration C2 can also mean that the first gas sensor 11 and the second gas sensor 21 share the same space (in this example, the internal space 508). Figure 7 The same space refers to at least one of the following: the temperature or humidity in the space is the same; the IDs of the near-field wireless (wifi (registered trademark) etc.) are the same; and the amplitude and frequency of the sound waves acquired by the portable terminal are the same when the gas sensor device 150 and the gas sensor device 250 are portable terminals.

[0149] The second gas sensor 21 can be configured in the internal space 508 (see reference). Figure 7 In this example, the gas sensor device 250 includes a second gas sensor 21, and the gas sensor device 250 is disposed in the internal space 508.

[0150] The transmitting unit 13 can send reliability information Ir1, representing the calibration reliability R1 of the first gas sensor device 150, to the second gas sensor device 250. The receiving unit 20 can receive the reliability information Ir1. The calibration unit 24 can, based on the first calibration information Ic' and the calibration reliability R1 of the first gas sensor device 150, perform calibration on the gas 504 (refer to) calculated based on the output of the second gas sensor 21. Figure 1 The calibration unit 24 can also calibrate the concentration of gas 504 (refer to) calculated based on the output of the second gas sensor 21, based on the first calibration information Ic', according to the reliability information Ir1. Figure 1 The concentration of ) is calibrated.

[0151] It is permissible that, when the self-calibration reliability of the second gas sensor device 250 is below the second threshold Rth2 and the calibration reliability R1 exceeds the first threshold Rth1, the calibration unit 24 performs calibration on the gas 504 (refer to) calculated based on the output of the second gas sensor 21, based on the first calibration information Ic'. Figure 7 The concentration of the second gas sensor device 250 is used for calibration. The reliability of the self-calibration of the second gas sensor device 250 is below the second threshold Rth2, which may include cases where the second gas sensor device 250 does not have a self-calibration function.

[0152] The calibration unit 24 can compare the calibration reliability R1 of the first gas sensor device 150 received by the receiving unit 20 with the calibration reliability R2 of the second gas sensor device 250. The calibration reliability R2 can include the self-calibration calibration reliability R2 of the second gas sensor device 250 and the calibration reliability R2 when the second gas sensor device 250 is calibrated by other sensors.

[0153] Alternatively, when the calibration reliability R1 is higher than the calibration reliability R2, the calibration unit 24 uses the first calibration information Ic' received by the receiving unit 20 to adjust the gas 504 (refer to) calculated based on the output of the second gas sensor 21. Figure 7 The concentration of gas 504 is calibrated. When the calibration reliability R1 is higher than the calibration reliability R2, calibrating the concentration of gas 504 makes it easier to make the concentration of gas 504 calculated based on the output of the second gas sensor 21 more accurate. When the calibration reliability R1 is lower than the calibration reliability R2, the calibration unit 24 may not calibrate the concentration of gas 504 (refer to) calculated based on the output of the second gas sensor 21. Figure 7 The concentration of gas 504 (refer to) can be calibrated based on the output of the second gas sensor 21, or the second calibration information Ic can be used to calibrate the concentration of gas 504 (refer to) based on the output of the second gas sensor 21. Figure 7 The concentration of the measured object 502 (refer to) is calibrated based on the output of the second gas sensor 21. The second calibration information Ic is used to calculate the concentration of the measured object 502 (refer to) based on the output of the second gas sensor 21. Figure 7 ) gas 504 (refer to Figure 7 Calibration information for calibrating the concentration of ).

[0154] The gas sensor device 250 may also include a storage unit 122. The calibration reliability R1 of the first gas sensor device 150 received by the receiving unit 20 can be stored in the storage unit 122. The calibration reliability R1 stored in the storage unit 122 may refer to the past calibration reliability of the first gas sensor device 150. The calibration unit 24 can compare the calibration reliability R1 stored in the storage unit 122 with the current calibration reliability R1 of the first gas sensor device 150 received by the receiving unit 20. Specifically, if the current calibration reliability R1 is higher than the calibration reliability R1 stored in the storage unit 122, the calibration unit 24 may, based on the first calibration information Ic', adjust the gas 504 calculated based on the output of the second gas sensor 21 (see reference). Figure 7 The concentration of ) is calibrated.

[0155] If the calibration reliability R1 of the first gas sensor device 150 received by the receiving unit 20 is higher than the reference calibration reliability Cs, the calibration unit 24 can calibrate the gas concentration of the measurement object 502 calculated based on the output of the second gas sensor 21 based on the first calibration information Ic'. The storage unit 122 can store the reference reliability information Cs. If the calibration reliability R1 of the first gas sensor device 150 received by the receiving unit 20 is higher than the reference calibration reliability Cs, the storage unit 122 can update the reference calibration reliability Cs based on the received calibration reliability R1 and store the updated reference calibration reliability Cs. The calibration unit 24 can then calibrate the gas concentration of the measurement object 502 calculated based on the output of the second gas sensor 21 based on the first calibration information Ic', according to the updated reference reliability Cs.

[0156] If the calibration reliability R1 of the first gas sensor device 150 received by the receiving unit 20 is higher than the reference calibration reliability Cs, the storage unit 122 updates the reference calibration reliability Cs to the calibration reliability R1 and stores the updated reference calibration reliability Cs. If the calibration reliability R1 is lower than the reference calibration reliability Cs, the storage unit 122 does not update the reference calibration reliability Cs.

[0157] The reference reliability information Cs stored in the storage unit 122 can be the updated reference reliability information Cs based on the calibration reliability R1, or it can be the calibration reliability R2. The calibration reliability R2 can include the self-calibration calibration reliability R2 of the second gas sensor device 250 and the calibration reliability R2 when the second gas sensor device 200 is calibrated by other sensors.

[0158] The gas sensor device 150 may further include a location information acquisition unit 16. The gas sensor device 250 may further include a location information acquisition unit 26. The location information acquisition unit 16 acquires the location information of the first gas sensor device 100. The location information acquisition unit 26 acquires the location information of the second gas sensor device 200. The location information acquisition unit 16 and the location information acquisition unit 26 are, for example, a Global Positioning System (GPS).

[0159] The position information of the first gas sensor device 150 is set as position information Ip1. Reliability information Ir1 may include position information Ip1. The position information of the second gas sensor device 250 is set as position information Ip2. Reliability information Ir2 may include position information Ip2.

[0160] The calibration unit 24 can, based on the distance d between the position of the first gas sensor device 150 and the position of the second gas sensor device 250, and the first calibration information Ic', adjust the gas 504 calculated based on the output of the second gas sensor 21 (refer to...). Figure 1 The concentration of gas 504 is calibrated. As described above, the predetermined distance between the position of the first gas sensor 11 and the position of the second gas sensor 21 is called distance dp2. Even when the distance d is less than the distance dp2, the calibration unit 24 calibrates the concentration of gas 504 calculated based on the output of the second gas sensor 21. As described above, distance dp2 can refer to the distance between the first gas sensor 11 and the second gas sensor 21 being disposed in the same space (e.g., ...). Figure 7 The distance with high probability in the internal space (508).

[0161] If the distance d exceeds the distance dp2, the calibration unit 24 may not calibrate the concentration of gas 504 calculated based on the output of the second gas sensor 21. Alternatively, the calibration unit 24 may calibrate the concentration of gas 504 calculated based on the output of the second gas sensor 21 (see reference d) based on the first calibration information Ic', according to the distance d. Figure 1 The concentration of ) is calibrated.

[0162] Figure 9 This is a block diagram illustrating another example of a gas sensor device 150 and a gas sensor device 250 according to one embodiment of the present invention. In this example, a plurality of gas sensor devices 150 (gas sensor devices 150-1 to gas sensor devices 150-n) are disposed in the measurement object 501, and a gas sensor device 250 is disposed in the measurement object 502. The gas sensor device 150 can be used with... Figure 5 The first gas sensor device 100 shown is identical. Gas sensor device 250 can be used with... Figure 5 The second gas sensor device 200 shown is the same.

[0163] The transmitting units 13-1 to 13-n of each of the gas sensor devices 150-1 to 150-n (refer to...) Figure 8 The first calibration information Ic'1 to the first calibration information Ic'n can be sent separately to multiple organisms (refer to...). Figure 7 When the target object 502 is moved, the transmitting units 13-1 to 13-n respectively transmit signals to the internal space 508 (reference). Figure 7 Send the first calibration information Ic'1 to the first calibration information Ic'n.

[0164] The receiving unit 20 of the gas sensor device 250 can receive the first calibration information Ic' of each of the multiple gas sensor devices 150. In this example, the receiving unit 20 receives the first calibration information Ic' from the transmitting units 13-1 to 13-n (see reference). Figure 8 The first calibration information Ic'1 to the first calibration information Ic'n are sent respectively.

[0165] The calibration unit 24 of the gas sensor device 250 can perform calibration on gas 504 (refer to) calculated based on the output of the second gas sensor 21, based on multiple first calibration information Ic'. Figure 7 The concentration of gas 504 is calibrated based on the first calibration information Ic'1 to Ic'n. In this example, the calibration unit 24 calibrates the concentration of gas 504 based on the first calibration information Ic'1 to Ic'n. Therefore, the concentration of gas 504 can be easily calibrated to a more accurate concentration compared to calibration based on a single first calibration information Ic'.

[0166] The transmitting unit 13 of each of the multiple gas sensor devices 150 (refer to...) Figure 8 It can transmit reliability information Ir1 for each of the first gas sensor devices 150. In this example, transmitting units 13-1 to 13-n transmit reliability information Ir1-1 to Ir1-n respectively.

[0167] The receiving unit 20 can receive reliability information Ir1 from each of the plurality of first gas sensor devices 150. In this example, the receiving unit 20 receives reliability information Ir1-1 to reliability information Ir1-n. The reliability information Ir1-1 to reliability information Ir1-n can be stored in the storage unit 122.

[0168] The calibration unit 24 can weight the calibration reliability R11 to R1n of each of the multiple first gas sensor devices 150. The calibration unit 24 can then use the weighted calibration reliability R1 to calculate the gas 504 (refer to) based on the output of the second gas sensor 21. Figure 1 The concentration of gas 504 is calibrated based on the output of the second gas sensor 21. Therefore, the concentration of gas 504 can be easily calibrated to a more accurate level compared to calibration based on an unweighted calibration reliability R1. The calibration unit 24 can also calibrate the concentration of gas 504 (refer to the highest calibration reliability R1 among calibration reliability R11 to calibration reliability R1n) based on the output of the second gas sensor 21. Figure 1 The concentration of ) is calibrated.

[0169] Figure 10 This is a flowchart illustrating an example of a gas sensor calibration method according to one embodiment of the present invention. Figure 4 and Figure 5The gas sensor calibration method of one embodiment of the present invention is illustrated using the gas sensor system 400 shown as an example.

[0170] Sending step S100 is the step in which the sending unit 13 sends the first calibration information Ic'. The first calibration information Ic' is used to calculate the measurement object 501 (refer to) based on the output of the first gas sensor 11. Figure 1 Gas 503 (refer to) Figure 1 Calibration information for calibrating the concentration of ).

[0171] Receiving step S102 is the step in which the receiving unit 20 receives the first calibration information Ic' sent in the sending step S100. Calibration step S104 is the step in which the calibration unit 24, based on the first calibration information Ic' received in receiving step S102, calculates the measurement object 502 (refer to) based on the output of the second gas sensor 21. Figure 1 ) gas 504 (refer to Figure 1 The steps for calibrating the concentration of ) are as follows.

[0172] The sending step S100 may be a step in which the sending unit 13 also sends reliability information Ir1, representing the calibration reliability R1 of the first gas sensor device 100. The receiving step S102 may be a step in which the receiving unit 20 also receives the reliability information Ir1 sent in the sending step S100.

[0173] Calibration step S104 may be a step in which the calibration unit 24 calibrates the gas concentration of the gas 504 of the measurement object 502, calculated based on the output of the second gas sensor 21, based on the first calibration information Ic' and the reliability information Ir1. Calibration step S104 may also be a step in which the calibration unit 24 calibrates the concentration of the gas 504 calculated based on the output of the second gas sensor 21, according to the calibration reliability R1 and based on the first calibration information Ic' received in the receiving step S102.

[0174] The calibration step S104 may also be the following step: when the self-calibration reliability R2 of the second gas sensor device 200 is below a predetermined second threshold Rth2 and the calibration reliability R1 exceeds the first threshold Rth1, the calibration unit 24 calibrates the concentration of gas 504 of the measurement object 502 calculated based on the output of the second gas sensor 21 based on the first calibration information Ic' received in the receiving step S102.

[0175] Calibration step S104 can also be as follows: Calibration unit 24 compares the calibration reliability R1 and calibration reliability R2 received in receiving step S102. If calibration reliability R1 is higher than calibration reliability R2, calibration unit 24 calibrates the concentration of gas 504 of the measurement object 502 calculated based on the output of the second gas sensor 21 based on the first calibration information Ic' received in receiving step S102. Calibration step S104 can also be as follows: If the calibration reliability R1 of the first gas sensor device 100 received in receiving step S102 is higher than the reference calibration reliability Cs, calibration unit 24 calibrates the gas concentration of the measurement object 502 calculated based on the output of the second gas sensor 21 based on the first calibration information Ic'.

[0176] Figure 11 Show Figure 10 Here is an example of the details of calibration step S104. AD conversion step S90 is the step where AD conversion unit 124 converts the output of the analog signal from the second gas sensor 21 into a digital signal. Calculation step S92 is the step where calculation unit 120 calculates the concentration of gas 504 based on the digital signal obtained from the conversion in AD conversion step S90. Storage step S94 is the step where storage unit 112 stores the concentration of gas 504 calculated in calculation step S92. Storage step S94 may be the step of storing the correlation Cr' between the concentration of gas 504 calculated in calculation step S92 and the first calibration information Ic'.

[0177] Calculation step S96 is the step in which the calculation unit 120 calculates the second calibration information Ic” based on the first calibration information Ic’ received in receiving step 102 and the correlation relationship Cr’ stored in storage step S94. The calibration step S98 based on the digital signal is the step in which the calibration unit 24 (see reference) calculates the second calibration information Ic”. Figure 4 The measurement object 502 (refer to) is calculated based on the output of the second gas sensor 21 using the second calibration information Ic” based on the digital signal. Figure 1 ) gas 504 (refer to Figure 1 The step of calibrating the concentration of gas 504 is as follows. Alternatively, the calculation step S96 may be a step in which the calibration unit 24 calculates and calibrates the concentration of gas 504 based on the digital signal obtained by conversion in the AD conversion step S90 and the first calibration information Ic' received in the receiving step S102.

[0178] In a living organism 90 having a first gas sensor device 100 (reference) Figure 1When moving from measurement object 501 to measurement object 502, the measurement object 502 whose concentration of gas 504 is calculated based on the output of the first gas sensor 11 can be the same as the measurement object 502 whose concentration of gas 504 is calculated based on the output of the second gas sensor 21. The same measurement object 502 can mean that the type of gas measured by the first gas sensor device 100 in measurement object 502 is the same as the type of gas measured by the second gas sensor device 200. In this example, the second gas sensor device 200 is disposed in the internal space 508.

[0179] The same measurement object 502 can also mean that the first gas sensor 11 and the second gas sensor 21 share the same space (in this example, the internal space 508 (see reference)). Figure 1 The same space refers to at least one of the following: the temperature or humidity in the space is the same; the IDs of the near-field wireless (wifi (registered trademark) etc.) are the same; and the amplitude and frequency of the sound waves acquired by the portable terminal are the same when the first gas sensor device 100 and the second gas sensor device 200 are portable terminals.

[0180] Storage unit 122 can store reference reliability information Cs. Storage step S94 may include update step S941, in which, if the calibration reliability R1 of the first gas sensor device 100 received in receiving step S102 is higher than the reference calibration reliability Cs, storage unit 122 updates the reference calibration reliability Cs based on the received calibration reliability R1. In storage step S94, storage unit 122 can store the updated reference calibration reliability Cs. Calibration step S104 may be the following step: calibration unit 24 calibrates the gas concentration of the measurement object 502 calculated based on the output of the second gas sensor 21 based on the first calibration information Ic' according to the updated reference reliability Cs.

[0181] The update step S941 can also be as follows: if the calibration reliability R1 of the first gas sensor device 100 received in the receiving step S102 is higher than the reference calibration reliability Cs, the storage unit 122 updates the reference calibration reliability Cs to the calibration reliability R1. In the storage step S94, if the calibration reliability R1 is lower than the reference calibration reliability Cs, the storage unit 122 may not update the reference calibration reliability Cs.

[0182] The reference reliability information Cs stored in storage step S94 can be the updated reference reliability information Cs based on calibration reliability R1, or it can be the calibration reliability R2. The calibration reliability R2 can include the self-calibration calibration reliability R2 of the second gas sensor device 200 and the calibration reliability R2 when the second gas sensor device 200 is calibrated by other sensors.

[0183] Figure 12 This is a flowchart illustrating another example of a gas sensor calibration method according to an embodiment of the present invention. The gas sensor calibration method in this example is similar to... Figure 10 The difference in the gas sensor calibration method shown is that the gas sensor calibration method in this example further includes a storage step S1031 and a location information acquisition step S1032. Figure 4 and Figure 5 The gas sensor calibration method in this example is illustrated using the gas sensor system 400 shown.

[0184] Storage step S1031 is the step in which the storage unit 122 stores the reliability information Ir1 received in receiving step S102. Calibration step S104 is the following step: Calibration unit 24 compares the reliability information Ir1 received in receiving step S102 with the reliability information Ir1 stored in storage step S1031. If the reliability information Ir1 received in receiving step S102 is higher than the reliability information Ir1 stored in storage step S1031, calibration unit 24, based on the first calibration information Ic' received in receiving step S102, performs calibration on the measurement object 502 (refer to) calculated based on the output of the second gas sensor 21. Figure 1 ) gas 504 (refer to Figure 1 The concentration of ) is calibrated. Calibration step S104 can be performed after storage step S1031.

[0185] The storage step S1031 may include an update step S1033. In the update step S1033, if the calibration reliability R1 of the first gas sensor device 100 received in the receiving step S102 is higher than the reference calibration reliability Cs, the storage unit 122 updates the reference calibration reliability Cs based on the received calibration reliability R1. In the storage step S1031, the storage unit 122 may store the updated reference calibration reliability Cs. The calibration step S104 may be the following step: the calibration unit 24 calibrates the gas concentration of the measurement object 502 calculated based on the output of the second gas sensor 21 based on the first calibration information Ic', according to the updated reference reliability Cs.

[0186] The update step S1033 can also be as follows: if the calibration reliability R1 of the first gas sensor device 100 received in step S102 is higher than the reference calibration reliability Cs, the storage unit 122 updates the reference calibration reliability Cs to the calibration reliability R1. In the storage step S1031, if the calibration reliability R1 is lower than the reference calibration reliability Cs, the storage unit 122 may not update the reference calibration reliability Cs.

[0187] The reference reliability information Cs stored in storage step S1031 can be the updated reference reliability information Cs based on calibration reliability R1, or it can be the calibration reliability R2. The calibration reliability R2 can include the self-calibration calibration reliability R2 of the second gas sensor device 200 and the calibration reliability R2 when the second gas sensor device 200 is calibrated by other sensors.

[0188] The location information acquisition step S1032 is the step in which the location information acquisition unit 26 acquires the location information Ip2 of the second gas sensor device 200. In the location information acquisition step S1032, the location information acquisition unit 16 may also acquire the location information Ip1 of the first gas sensor device 100. The location information acquisition unit 16 and the location information acquisition unit 26 are, for example, Global Positioning System (GPS).

[0189] The reliability information Ir1 may include the location information Ip1. As described above, the distance d is the distance between the position of the first gas sensor device 100 and the position of the second gas sensor device 200 obtained by the location information acquisition unit 26. The calibration step 104 may be performed by the calibration unit 24 based on the distance d and the first calibration information Ic' to calibrate the gas 504 (refer to) calculated based on the output of the second gas sensor 21. Figure 1 The calibration step S104 can also be the following step: the calibration unit 24 calibrates the concentration of gas 504 calculated based on the output of the second gas sensor 21 based on the first calibration information Ic' received in the receiving step S102, according to the distance d. The calibration step S104 can be performed after the position information acquisition step S1032.

[0190] As described above, distance dp2 is a predetermined distance between the position of the first gas sensor 11 and the position of the second gas sensor 21. Calibration step S104 can also be the following step: when the distance d is less than the distance dp2, the calibration unit 24 performs calibration on the gas 504 (refer to...) calculated based on the output of the second gas sensor 21. Figure 1The concentration of gas 504 is calibrated. In calibration step S104, if the distance d is greater than or equal to the distance dp2, the calibration unit 24 may not calibrate the concentration of gas 504, or it may calibrate the concentration of gas 504 based on the second calibration information Ic”. The second calibration information Ic” is used to calibrate the concentration of the measured object 502 (refer to) calculated based on the output of the second gas sensor 21. Figure 7 ) gas 504 (refer to Figure 7 Calibration information for calibrating the concentration of ).

[0191] The order of storage step S1031 and location information acquisition step S1032 can also be reversed. That is, location information acquisition step S1032 can be performed after receiving step S102, and storage step S1031 can be performed after location information acquisition step S1032. When the order of storage step S1031 and location information acquisition step S1032 is reversed, location information Ip2 or both location information Ip2 and location information Ip1 can be stored in storage unit 122.

[0192] The receiving step S102 may also be the step where the receiving unit 20 receives the first calibration information Ic' of each of the plurality of first gas sensor devices 100. The calibration step S104 may also be the step where the calibration unit 24, based on the first calibration information Ic' received in the receiving step 102, adjusts the gas 504 calculated based on the output of the second gas sensor 21 (see reference). Figure 1 The calibration step involves calibrating the concentration of gas 504. In this example, in calibration step S104, the calibration unit 24 calibrates the concentration of gas 504 based on first calibration information Ic'1 to first calibration information Ic'n. Therefore, the concentration of gas 504 can be easily calibrated to a more accurate concentration compared to calibration based on a single first calibration information Ic'.

[0193] The sending step S100 may also be a step in which the sending unit 13 further sends reliability information Ir1 of each of the plurality of first gas sensor devices 100. The receiving step S102 may also be a step in which the receiving unit 20 further receives the reliability information Ir1 sent in the sending step S100. The calibration step S104 may also be the following step: the calibration unit 24 weights the calibration reliability R11 to the calibration reliability R1n, and uses the weighted calibration reliability R1 to calculate the gas 504 (refer to) based on the output of the second gas sensor 21. Figure 1 The concentration of ) is calibrated.

[0194] The storage step S1031 can also be a step of storing the reliability information Ir1 of each of the plurality of first gas sensor devices 100 received in the receiving step S102. Figure 11 The calculation step S96 shown can also be the following steps: The calculation unit 120 calculates the weights of the calibration reliability R11 to the calibration reliability R1n based on the reliability information Ir1 of each first gas sensor device stored in the storage step S1031, and calculates the second calibration information Ic by weighting the calibration reliability R11 to the calibration reliability R1n by the weights.

[0195] Figure 11 The digital signal-based calibration step S98 shown can also be the following step: Calibration unit 24 (refer to...) Figure 4 and Figure 5 The measured object 502 (refer to) is calculated based on the output of the second gas sensor 21 using the weighted digital signal of the second calibration information Ic. Figure 1 ) gas 504 (refer to Figure 1 The concentration of gas 504 is calibrated. Therefore, the concentration of gas 504 can be easily calibrated to a more accurate concentration compared to calibration based on the second calibration information Ic” weighted by the uncalibrated reliability R1.

[0196] Calibration step S104 can also be the following step: Calibration unit 24 performs calibration on gas 504 (refer to) calculated based on the output of the second gas sensor 21, based on the highest calibration reliability R1 among calibration reliability R11 to calibration reliability R1n. Figure 1 The concentration of gas 504 is calibrated. In calibration step S104, the calibration unit 24 may set the weight of the highest calibration reliability R1 to 1 and set the weight of other calibration reliability R1 to zero to calibrate the concentration of gas 504.

[0197] Figure 13 This is a flowchart illustrating an example of a gas sensor calibration method according to one embodiment of the present invention. Figure 8 and Figure 9 The gas sensor calibration method of one embodiment of the present invention is illustrated using the gas sensor device 150 shown as an example.

[0198] Sending step S200 is the step in which the sending unit 13 sends first calibration information Ic' to the second gas sensor device 250. The first calibration information Ic' is used to calculate the measurement object 501 (refer to...) based on the output of the first gas sensor 11. Figure 7 Gas 503 (refer to) Figure 7The calibration information is used to calibrate the concentration of the first gas sensor device 150. The sending step S200 may be a step in which the sending unit 13 also sends reliability information Ir1, representing the calibration reliability R1 of the first gas sensor device 150, to the second gas sensor device 250.

[0199] Figure 14 This is a flowchart illustrating an example of a gas sensor calibration method according to one embodiment of the present invention. Figure 8 and Figure 9 The gas sensor calibration method of one embodiment of the present invention is illustrated using the gas sensor device 250 shown as an example.

[0200] Receiving step S302 is the step in which the receiving unit 20 receives the first calibration information Ic' from the first gas sensor device 150. Calibration step S304 is the step in which the calibration unit 24, based on the first calibration information Ic' received in receiving step S102, calculates the measurement object 502 (refer to) based on the output of the second gas sensor 21. Figure 7 ) gas 504 (refer to Figure 7 The steps for calibrating the concentration of ) are as follows.

[0201] exist Figure 13 and Figure 14 In the gas sensor calibration method shown, in a living organism 90 having a first gas sensor device 150 (refer to...) Figure 7 When moving from measurement object 501 to measurement object 502, the measurement object 502 whose concentration of gas 504 is calculated based on the output of the first gas sensor 11 can be the same as the measurement object 502 whose concentration of gas 504 is calculated based on the output of the second gas sensor 21. As described above, the same measurement object 502 can mean that the type of gas measured by the first gas sensor device 150 in measurement object 502 is the same as the type of gas measured by the second gas sensor device 250. In this example, the second gas sensor device 250 is disposed in the internal space 508.

[0202] As mentioned above, the same measurement object 502 can also mean that the first gas sensor 11 and the second gas sensor 21 share the same space (in this example, the internal space 508 (see reference)). Figure 7 The same space can refer to at least one of the following: the temperature or humidity in the space is the same; the IDs of the near-field wireless (wifi (registered trademark) etc.) are the same; and the amplitude and frequency of the sound waves acquired by the portable terminal are the same when the first gas sensor device 150 and the second gas sensor device 250 are portable terminals.

[0203] Receiving step S302 may be a step in which the receiving unit 20 further receives reliability information Ir1 representing calibration reliability R1. Calibration step S304 may be a step in which the calibration unit 24 calibrates the gas concentration of the gas 504 of the measurement object 502, calculated based on the output of the second gas sensor 21, based on the first calibration information Ic' and the reliability information Ir1. Calibration step S304 may also be a step in which the calibration unit 24 calibrates the concentration of the gas 504 calculated based on the output of the second gas sensor 21, according to the calibration reliability R1 and based on the first calibration information Ic' received in receiving step S302.

[0204] The calibration step S304 may also be the following step: when the self-calibration reliability R2 of the second gas sensor device 250 is below a predetermined second threshold Rth2 and the calibration reliability R1 exceeds the first threshold Rth1, the calibration unit 24 calibrates the concentration of gas 504 of the measurement object 502 calculated based on the output of the second gas sensor 21 based on the first calibration information Ic' received in the receiving step S302.

[0205] Calibration step S304 can also be as follows: Calibration unit 24 compares the calibration reliability R1 and calibration reliability R2 of the first gas sensor device 150. If the calibration reliability R1 is higher than the calibration reliability R2, calibration unit 24 calibrates the concentration of gas 504 of the measurement object 502 calculated based on the output of the second gas sensor 21 based on the first calibration information Ic' received in receiving step S302. Calibration step S304 can also be as follows: If the calibration reliability R1 of the first gas sensor device 150 received in receiving step S302 is higher than the reference calibration reliability Cs, calibration unit 24 calibrates the gas concentration of the measurement object 502 calculated based on the output of the second gas sensor 21 based on the first calibration information Ic'.

[0206] Figure 15 Show Figure 14 Here is an example of the details of calibration step S304. AD conversion step S190 is the step where AD conversion unit 124 converts the analog signal output of the second gas sensor 21 into a digital signal. Calculation step S192 is the step where calculation unit 120 calculates the concentration of gas 504 based on the digital signal obtained from the conversion in AD conversion step S190. Storage step S194 is the step where storage unit 112 stores the concentration of gas 504 calculated in calculation step S192. Storage step S194 can also be the step of storing the correlation Cr' between the concentration of gas 504 calculated in calculation step S192 and the first calibration information Ic'.

[0207] Calculation step S196 is the step in which the calculation unit 120 calculates the second calibration information Ic” based on the first calibration information Ic” received in receiving step 302 and the correlation relationship Cr’ stored in storage step S194. The calibration step S198 based on the digital signal is the step in which the calibration unit 24 (see reference) calculates the second calibration information Ic”. Figure 4 The measurement object 502 (refer to) is calculated based on the output of the second gas sensor 21 using the second calibration information Ic” based on the digital signal. Figure 7 ) gas 504 (refer to Figure 7 The step of calibrating the concentration of gas 504 is as follows. In addition, the calculation step S196 may also be a step in which the calibration unit 24 calculates and calibrates the concentration of gas 504 based on the digital signal obtained by conversion in the AD conversion step S190 and the second calibration information Ic” received in the receiving step S302.

[0208] Storage unit 122 can store reference reliability information Cs. Storage step S194 may include update step S1941, in which, if the calibration reliability R1 of the first gas sensor device 150 received in receiving step S302 is higher than the reference calibration reliability Cs, storage unit 122 updates the reference calibration reliability Cs based on the received calibration reliability R1. In storage step S194, storage unit 122 can store the updated reference calibration reliability Cs. Calibration step S304 may be the following step: calibration unit 24 calibrates the gas concentration of the measurement object 502 calculated based on the output of the second gas sensor 21 based on the first calibration information Ic', according to the updated reference reliability Cs.

[0209] The update step S1941 can also be as follows: if the calibration reliability R1 of the first gas sensor device 150 received in the receiving step S302 is higher than the reference calibration reliability Cs, the storage unit 122 updates the reference calibration reliability Cs to the calibration reliability R1. In the storage step S194, if the calibration reliability R1 is lower than the reference calibration reliability Cs, the storage unit 122 may not update the reference calibration reliability Cs.

[0210] The reference reliability information Cs stored in storage step S194 can be the updated reference reliability information Cs based on calibration reliability R1, or it can be the calibration reliability R2. The calibration reliability R2 can include the self-calibration calibration reliability R2 of the second gas sensor device 250 and the calibration reliability R2 when the second gas sensor device 250 is calibrated by other sensors.

[0211] Figure 16This is a flowchart illustrating another example of a gas sensor calibration method according to an embodiment of the present invention. The gas sensor calibration method in this example is similar to... Figure 14 The difference in the gas sensor calibration method shown is that the gas sensor calibration method in this example also includes a storage step S3031 and a location information acquisition step S3032. Figure 8 and Figure 9 The gas sensor calibration method in this example will be illustrated using the gas sensor device 250 shown as an example.

[0212] Storage step S3031 is the step in which the storage unit 122 stores the reliability information Ir1 received in receiving step S302. Calibration step S304 is the following step: Calibration unit 24 compares the reliability information Ir1 received in receiving step S302 with the reliability information Ir1 stored in storage step S3031. If the reliability information Ir1 received in receiving step S302 is higher than the reliability information Ir1 stored in storage step S3031, calibration unit 24, based on the first calibration information Ic' received in receiving step S302, performs calibration on the measurement object 502 (refer to) calculated based on the output of the second gas sensor 21. Figure 7 ) gas 504 (refer to Figure 7 The concentration of ) is calibrated. Calibration step S304 can be performed after storage step S3031.

[0213] The storage step S3031 may include an update step S3033. In the update step S3033, if the calibration reliability R1 of the first gas sensor device 150 received in the receiving step S102 is higher than the reference calibration reliability Cs, the storage unit 122 updates the reference calibration reliability Cs based on the received calibration reliability R1. In the storage step S3031, the storage unit 122 may store the updated reference calibration reliability Cs. The calibration step S304 may be the following step: the calibration unit 24 calibrates the gas concentration of the measurement object 502 calculated based on the output of the second gas sensor 21 based on the first calibration information Ic', according to the updated reference reliability Cs.

[0214] The update step S3033 can also be as follows: if the calibration reliability R1 of the first gas sensor device 150 received in the receiving step S302 is higher than the reference calibration reliability Cs, the storage unit 122 updates the reference calibration reliability Cs to the calibration reliability R1. In the storage step S3031, if the calibration reliability R1 is lower than the reference calibration reliability Cs, the storage unit 122 may not update the reference calibration reliability Cs.

[0215] The reference reliability information Cs stored in storage step S3031 can be the updated reference reliability information Cs based on calibration reliability R1, or it can be the calibration reliability R2. The calibration reliability R2 can include the self-calibration calibration reliability R2 of the second gas sensor device 250 and the calibration reliability R2 when the second gas sensor device 250 is calibrated by other sensors.

[0216] Location information acquisition step S3032 is the step in which the location information acquisition unit 26 acquires the location information Ip2 of the second gas sensor device 200. In location information acquisition step S3032, the location information acquisition unit 16 may also acquire the location information Ip1 of the first gas sensor device 100. The location information acquisition unit 16 and the location information acquisition unit 26 are, for example, Global Positioning System (GPS).

[0217] The reliability information Ir1 may include the location information Ip1. As described above, the distance d is the distance between the position of the first gas sensor device 100 and the position of the second gas sensor device 200 obtained by the location information acquisition unit 26. The calibration step 304 may be the calibration unit 24 performing calibration on the gas 504 (refer to) calculated based on the output of the second gas sensor 21 based on the distance d and the first calibration information Ic'. Figure 7 The calibration step S304 can also be the following step: the calibration unit 24 calibrates the concentration of gas 504 calculated based on the output of the second gas sensor 21 based on the first calibration information Ic' received in the receiving step S302, according to the distance d. The calibration step S304 can be performed after the position information acquisition step S3032.

[0218] As described above, distance dp2 is a predetermined distance between the position of the first gas sensor 11 and the position of the second gas sensor 21. Calibration step S304 can also be the following step: when the distance d is less than the distance dp2, the calibration unit 24 performs calibration on the gas 504 (refer to...) calculated based on the output of the second gas sensor 21. Figure 7 The concentration of gas 504 is calibrated. In calibration step S304, if the distance d is greater than or equal to the distance dp2, the calibration unit 24 may not calibrate the concentration of gas 504.

[0219] The order of storage step S3031 and location information acquisition step S3032 can also be reversed. That is, location information acquisition step S3032 can be performed after receiving step S302, and storage step S3031 can be performed after location information acquisition step S3032. When the order of storage step S3031 and location information acquisition step S3032 is reversed, location information Ip2 or both location information Ip2 and location information Ip1 can be stored in storage unit 122.

[0220] The receiving step S302 may also be the step where the receiving unit 20 receives the first calibration information Ic' of each of the plurality of first gas sensor devices 100. The calibration step S304 may also be the step where the calibration unit 24, based on the first calibration information Ic' of each gas sensor device received in the receiving step 302, performs calibration on the gas 504 calculated based on the output of the second gas sensor 21 (see reference). Figure 7 The calibration step involves calibrating the concentration of gas 504. In this example, in calibration step S304, the calibration unit 24 calibrates the concentration of gas 504 based on first calibration information Ic'1 to first calibration information Ic'n. Therefore, the concentration of gas 504 can be easily calibrated to a more accurate concentration compared to calibration based on a single first calibration information Ic'.

[0221] The receiving step S302 can also be a step in which the receiving unit 20 further receives reliability information Ir1 from each of the multiple first gas sensor devices 100. The calibration step S304 can also be the following step: the calibration unit 24 weights the calibration reliability R11 to the calibration reliability R1n, and uses the weighted calibration reliability R1 to calculate the gas 504 (refer to) based on the output of the second gas sensor 21. Figure 7 The concentration of ) is calibrated.

[0222] The storage step S3031 can also be a step of storing the reliability information Ir1 of each gas sensor device of the plurality of first gas sensor devices 100 received in the receiving step S302. Figure 15 The calculation step S196 shown can also be the following steps: The calculation unit 120 calculates the weights of calibration reliability R11 to calibration reliability R1n based on the reliability information Ir1 of each gas sensor device stored in the storage step S3031, and calculates the second calibration information Ic by weighting the calibration reliability R11 to calibration reliability R1n by the weights.

[0223] Figure 15 The digital signal-based calibration step S198 shown can also be the following step: Calibration unit 24 (refer to...) Figure 8 and Figure 9The measured object 502 (refer to) is calculated based on the output of the second gas sensor 21 using the weighted digital signal of the second calibration information Ic. Figure 7 ) gas 504 (refer to Figure 7 The concentration of gas 504 is calibrated. Therefore, the concentration of gas 504 can be easily calibrated to a more accurate concentration compared to calibration based on the second calibration information Ic” weighted by the uncalibrated reliability R1.

[0224] Calibration step S304 can also be the following step: Calibration unit 24 performs calibration on gas 504 (refer to) calculated based on the output of the second gas sensor 21, based on the highest calibration reliability R1 among calibration reliability R11 to calibration reliability R1n. Figure 7 The concentration of gas 504 is calibrated. In calibration step S304, the calibration unit 24 may set the weight of the highest calibration reliability R1 to 1 and set the weight of other calibration reliability R1 to zero to calibrate the concentration of gas 504.

[0225] Various embodiments of the present invention can be described with reference to flowchart diagrams and block diagrams. In various embodiments of the present invention, a block may represent (1) a stage of processing for performing an operation or (2) a portion of a device that performs the operation.

[0226] Specific stages can be executed using dedicated circuitry, programmable circuitry, or a processor. Specific parts can be implemented using dedicated circuitry, programmable circuitry, or a processor. The programmable circuitry and the processor are provided together with computer-readable instructions. These computer-readable instructions can be stored on a computer-readable medium.

[0227] Application-specific circuits (ASICs) can include at least one of digital hardware circuits and analog hardware circuits. ASICs can also include at least one of integrated circuits (ICs) and discrete circuits. Programmable circuits can include hardware circuits performing logic AND, OR, XOR, NAND, NOR, and other logic operations. Programmable circuits can also include reconfigurable hardware circuits, including memory elements such as flip-flops, registers, field-programmable gate arrays (FPGAs), and programmable logic arrays (PLAs).

[0228] A computer-readable medium may include any tangible device capable of storing instructions executable by a suitable device. By including such tangible device in a computer-readable medium, a computer-readable medium having instructions stored in such device comprises instructions executable for creating units for performing operations specified in a flowchart or block diagram.

[0229] Computer-readable media can be, for example, electronic storage media, magnetic storage media, optical storage media, electromagnetic storage media, semiconductor storage media, etc. More specifically, computer-readable media can be, for example, floppy disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), electrically erasable programmable read-only memory (EEPROM), static random access memory (SRAM), optical disc read-only memory (CD-ROM), digital versatile optical disc (DVD), Blu-ray (RTM) optical disc, memory sticks, integrated circuit cards, etc.

[0230] Computer-readable instructions may include any of the following: assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, status setting data, source code, and object code. The source code and object code may be described by any combination of one or more programming languages, including object-oriented programming languages ​​and existing procedural programming languages. Object-oriented programming languages ​​may include, for example, Smalltalk (registered trademark), Java (registered trademark), C++, etc. Procedural programming languages ​​may include, for example, the "C" programming language.

[0231] Computer-readable instructions can be provided locally or via a wide area network (WAN) such as a local area network (LAN) or the Internet to the processor or programmable circuitry of a general-purpose computer, special-purpose computer, or other programmable data processing device. The processor or programmable circuitry of a general-purpose computer, special-purpose computer, or other programmable data processing device can be configured to execute... Figures 10-16 The flowchart shown or Figures 2-5 , Figure 8 or Figure 9 The unit specified in the block diagram executes computer-readable instructions. The processor may be, for example, a computer processor, processing unit, microprocessor, digital signal processor, controller, microcontroller, etc.

[0232] Figure 17 This is a diagram illustrating an example of a computer 2200 that can be embodied, either wholly or partially, as an embodiment of the gas sensor system 400, gas sensor device 150, or gas sensor device 250 according to an embodiment of the present invention. The program installed in the computer 2200 enables the computer 2200 to function as an operation associated with or one or more parts of the gas sensor device 150 or gas sensor device 250 according to an embodiment of the present invention, or enables the computer 2200 to perform that operation or those parts, or enables the computer 2200 to perform the various stages involved in the prediction method of the present invention (see reference). Figures 10-16 This program can be executed by CPU 2212 to cause computer 2200 to execute the flowchart described in this specification. Figures 10-16 ) and with block diagram ( Figures 2-5 , Figure 8 or Figure 9 A specific operation associated with several or all of the boxes in the box.

[0233] One embodiment of the present invention relates to a computer 2200, which includes a CPU 2212, RAM 2214, a graphics controller 2216, and a display device 2218. The CPU 2212, RAM 2214, graphics controller 2216, and display device 2218 are interconnected via a main controller 2210. The computer 2200 also includes input / output units such as a communication interface 2222, a hard disk drive 2224, a DVD-ROM drive 2226, and an IC card driver. The communication interface 2222, hard disk drive 2224, DVD-ROM drive 2226, and IC card driver are connected to the main controller 2210 via an input / output controller 2220. The computer also includes conventional input / output units such as a ROM 2230 and a keyboard 2242. The ROM 2230 and keyboard 2242 are connected to the input / output controller 2220 via an input / output chip 2240.

[0234] The CPU 2212 operates according to the program stored in the ROM 2230 and RAM 2214, thereby controlling each unit. The graphics controller 2216 displays image data on the display device 2218 by acquiring image data provided by the CPU 2212 in the RAM 2214, such as a frame buffer, or generated in the RAM 2214.

[0235] Communication interface 2222 communicates with other electronic devices via a network. Hard disk drive 2224 stores programs and data used by CPU 2212 within computer 2200. DVD-ROM drive 2226 reads programs or data from DVD-ROM 2201 and provides the read programs or data to hard disk drive 2224 via RAM 2214. IC card drive reads programs and data from IC card or writes programs and data to IC card.

[0236] ROM 2230 is used to store boot programs that are executed by computer 2200 during activation, or programs that depend on the hardware of computer 2200. Input / output chip 2240 can connect various input / output units to input / output controller 2220 via parallel port, serial port, keyboard port, mouse port, etc.

[0237] The program is provided via a computer-readable medium such as a DVD-ROM 2201 or an IC card. The program is read from the computer-readable medium and installed in a hard disk drive 2224, RAM 2214, or ROM 2230, which are also examples of computer-readable media, and executed by the CPU 2212. The information processing described within these programs is read by the computer 2200 to realize cooperation between the program and the aforementioned various types of hardware resources. The apparatus or method can be configured to perform information manipulation or processing as the computer 2200 is used.

[0238] For example, when communication is performed between computer 2200 and an external device, CPU 2212 can execute a communication program loaded into RAM 2214 and instruct communication interface 2222 to perform communication processing based on the processing described in the communication program. Under the control of CPU 2212, communication interface 2222 reads transmission data stored in a transmission buffer processing area provided in a recording medium such as RAM 2214, hard disk drive 2224, DVD-ROM 2201, or IC card, and sends the read transmission data to the network, or writes received data received from the network to a receive buffer processing area provided on the recording medium, etc.

[0239] CPU 2212 can read all or a portion of files or databases stored on external recording media such as hard disk drive 2224, DVD-ROM drive 2226 (DVD-ROM 2201), and IC cards into RAM 2214. CPU 2212 can perform various types of processing on the data in RAM 2214. Then, CPU 2212 can write the processed data back to the external recording media.

[0240] Various types of information, such as programs, data, tables, and databases, can be stored in recording media and processed. The CPU 2212 can perform various types of processing on data read from RAM 2214, including operations, information processing, conditional judgments, conditional branches, unconditional branches, information retrieval, or substitution, as described in this disclosure, specified by a sequence of program instructions. The CPU 2212 can write the results back to RAM 2214.

[0241] CPU 2212 can retrieve information from files, databases, etc., within a recording medium. For example, if multiple entries are stored in the recording medium, each having an attribute value of a first attribute associated with an attribute value of a second attribute, CPU 2212 can retrieve from these multiple entries an entry that matches the condition of a specified first attribute value, and read the attribute value of the second attribute stored in that entry. By reading the second attribute value, CPU 2212 obtains the attribute value of the second attribute associated with the first attribute that satisfies a predetermined condition.

[0242] The aforementioned programs or software modules can be stored on computer 2200 or on a computer-readable medium of computer 2200. Hard disks or RAM, such recording media, provided in a server system connected to a dedicated communication network or the Internet, can be used as computer-readable media. The program can be provided to computer 2200 through this recording medium.

[0243] The present invention has been described above using embodiments, but the scope of protection of the present invention is not limited to the scope described in the above embodiments. Those skilled in the art will understand that various modifications or improvements can be made to the above embodiments. It is clear from the claims that methods obtained by applying such modifications or improvements can also be included within the scope of protection of the present invention.

[0244] It should be noted that the execution order of actions, processes, steps, and stages in the apparatus, system, program, and method shown in the claims, specification, and drawings can be implemented in any order, unless specifically indicated as "before," "before," etc., and the output of a preceding process is not used in a subsequent process. The flow of actions in the claims, specification, and drawings is described using terms such as "firstly," "next," etc., for convenience, but this does not imply that they must be implemented in this order.

[0245] [Project 1]

[0246] A gas sensor system comprising:

[0247] A first gas sensor device includes a transmitter for transmitting first calibration information, which is used to calibrate the gas concentration of the measured object calculated based on the output of the first gas sensor; and

[0248] The second gas sensor device has a receiving unit and a calibration unit. The receiving unit receives the first calibration information sent by the transmitting unit, and the calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the first calibration information received by the receiving unit.

[0249] [Project 2]

[0250] According to the gas sensor system described in Project 1,

[0251] The object whose gas concentration is calculated based on the output of the first gas sensor is the same as the object whose gas concentration is calculated based on the output of the second gas sensor.

[0252] [Project 3]

[0253] According to the gas sensor system described in Project 1 or 2,

[0254] The first gas sensor device includes the first gas sensor.

[0255] The first gas sensor device is a portable terminal.

[0256] [Project 4]

[0257] According to the gas sensor system described in Project 3,

[0258] The second gas sensor device is disposed in the interior space of the object to be measured, and the gas concentration is calculated based on the output of the second gas sensor.

[0259] [Project 5]

[0260] According to the gas sensor system described in any of items 1 to 4

[0261] The second gas sensor device has a second gas sensor, and the second gas sensor device is a portable terminal.

[0262] [Project 6]

[0263] According to the gas sensor system described in any of items 1 to 5

[0264] The transmitting unit also transmits reliability information indicating the calibration reliability of the first gas sensor device.

[0265] The receiving unit also receives the reliability information.

[0266] The calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the received first calibration information, according to the calibration reliability of the first gas sensor device.

[0267] [Project 7]

[0268] According to the gas sensor system described in Project 6,

[0269] When the self-calibration reliability of the second gas sensor device is below a predetermined second threshold and the calibration reliability of the first gas sensor device exceeds a first threshold, the calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the received first calibration information.

[0270] [Project 8]

[0271] According to the gas sensor system described in item 6 or 7,

[0272] The calibration unit compares the calibration reliability of the first gas sensor device received by the receiving unit with the calibration reliability of the second gas sensor device. If the calibration reliability of the first gas sensor device is higher than that of the second gas sensor device, the calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the received first calibration information.

[0273] [Project 9]

[0274] According to the gas sensor system described in any of items 6 to 8

[0275] The second gas sensor device also includes a storage unit that stores the reliability information received by the receiving unit.

[0276] The calibration unit compares the calibration reliability of the first gas sensor device received by the receiving unit with the calibration reliability of the first gas sensor device stored in the storage unit. If the calibration reliability of the first gas sensor device received by the receiving unit is higher than the calibration reliability stored in the storage unit, the calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the received first calibration information.

[0277] [Project 10]

[0278] According to the gas sensor system described in any of items 6 to 9

[0279] The second gas sensor device further includes a position information acquisition unit, which acquires the position information of the second gas sensor device.

[0280] The reliability information includes the location information of the first gas sensor device.

[0281] The calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the received first calibration information, according to the distance between the position of the first gas sensor device and the position of the second gas sensor device obtained by the position information acquisition unit.

[0282] [Project 11]

[0283] According to the gas sensor system described in Project 10,

[0284] When the distance is less than a predetermined distance, the calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the received first calibration information.

[0285] [Project 12]

[0286] According to the gas sensor system described in any of items 6 to 11

[0287] It is equipped with multiple first gas sensor devices.

[0288] The receiving unit receives the first calibration information of each of the multiple first gas sensor devices.

[0289] The calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor, based on the first calibration information of each of the plurality of first gas sensor devices.

[0290] [Project 13]

[0291] According to the gas sensor system described in Project 12,

[0292] The transmitting unit of each of the plurality of first gas sensor devices transmits the reliability information of each of the first gas sensor devices.

[0293] The receiving unit receives the reliability information of each of the plurality of first gas sensor devices.

[0294] The calibration unit weights the calibration reliability of each of the plurality of first gas sensor devices, and calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the weighted calibration reliability.

[0295] [Project 14]

[0296] According to the gas sensor system described in Project 13,

[0297] The calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the highest calibration reliability among the calibration reliability of each of the plurality of first gas sensor devices.

[0298] [Project 15]

[0299] A gas sensor device,

[0300] It includes a transmitting unit that sends first calibration information to a second gas sensor device.

[0301] The first calibration information is calibration information used to calibrate the gas concentration of the measured object calculated based on the output of the first gas sensor.

[0302] [Project 16]

[0303] According to the gas sensor device described in Project 15

[0304] The second gas sensor device has a second gas sensor.

[0305] The object whose gas concentration is calculated based on the output of the first gas sensor is the same as the object whose gas concentration is calculated based on the output of the second gas sensor.

[0306] [Project 17]

[0307] According to the gas sensor device described in Item 16, the second gas sensor is installed in a portable terminal.

[0308] [Project 18]

[0309] According to the gas sensor device described in any of items 15 to 17

[0310] The first gas sensor is disposed in the first gas sensor device.

[0311] The transmitting unit also sends reliability information, representing the calibration reliability of the first gas sensor device, to the second gas sensor device.

[0312] [Project 19]

[0313] A gas sensor device comprising:

[0314] The receiving unit receives the first calibration information from the first gas sensor device; and

[0315] The calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor, based on the first calibration information received by the receiving unit.

[0316] [Project 20]

[0317] According to the gas sensor device described in Project 19

[0318] The first gas sensor device has a first gas sensor.

[0319] The object whose gas concentration is calculated based on the output of the first gas sensor is the same as the object whose gas concentration is calculated based on the output of the second gas sensor.

[0320] [Project 21]

[0321] According to the gas sensor device described in Item 20, the first gas sensor is installed in a portable terminal.

[0322] [Project 22]

[0323] According to the gas sensor device described in Project 21,

[0324] The second gas sensor is disposed in the interior space of the object being measured, and the gas concentration is calculated based on the output of the second gas sensor.

[0325] [Project 23]

[0326] According to any of items 19 to 22, the gas sensor device is described.

[0327] The receiving unit also receives reliability information indicating the calibration reliability of the first gas sensor device.

[0328] The calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the received first calibration information, according to the calibration reliability of the first gas sensor device.

[0329] [Project 24]

[0330] According to the gas sensor device described in Project 23

[0331] The second gas sensor is disposed in the second gas sensor device.

[0332] When the self-calibration reliability of the second gas sensor device is below a predetermined second threshold and the calibration reliability of the first gas sensor device exceeds a first threshold, the calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the received first calibration information.

[0333] [Project 25]

[0334] According to the gas sensor device described in Project 24,

[0335] The calibration unit compares the calibration reliability of the first gas sensor device received by the receiving unit with the calibration reliability of the second gas sensor device. If the calibration reliability of the first gas sensor device is higher than that of the second gas sensor device, the calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the received first calibration information.

[0336] [Project 26]

[0337] According to the gas sensor device described in item 24 or 25

[0338] It also includes a storage unit that stores the reliability information received by the receiving unit.

[0339] The calibration unit compares the calibration reliability of the first gas sensor device received by the receiving unit with the calibration reliability of the first gas sensor device stored in the storage unit. If the calibration reliability of the first gas sensor device received by the receiving unit is higher than the calibration reliability stored in the storage unit, the calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the received first calibration information.

[0340] [Project 27]

[0341] According to the gas sensor device described in any of items 24 to 26

[0342] It also includes a location information acquisition unit, which acquires the location information of the second gas sensor device.

[0343] The reliability information includes the location information of the first gas sensor device.

[0344] The calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the received first calibration information, according to the distance between the position of the first gas sensor device and the position of the second gas sensor device obtained by the position information acquisition unit.

[0345] [Project 28]

[0346] According to the gas sensor device described in Project 27

[0347] When the distance is less than a predetermined distance, the calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor.

[0348] [Project 29]

[0349] According to the gas sensor device described in any of items 23 to 28

[0350] The receiving unit receives the first calibration information from each of the plurality of first gas sensor devices.

[0351] The calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor, based on the first calibration information of each of the plurality of first gas sensor devices.

[0352] [Project 30]

[0353] According to the gas sensor device described in Project 29

[0354] The receiving unit receives reliability information from each of the multiple first gas sensor devices.

[0355] The calibration unit weights the calibration reliability of each of the plurality of first gas sensor devices, and calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the weighted calibration reliability.

[0356] [Project 31]

[0357] According to the gas sensor device described in Project 30

[0358] The calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the highest calibration reliability among the calibration reliability of each of the plurality of first gas sensor devices.

[0359] [Project 32]

[0360] A gas sensor calibration method includes the following steps:

[0361] In the sending step, the sending unit sends first calibration information, which is calibration information used to calibrate the gas concentration of the measured object calculated based on the output of the first gas sensor.

[0362] The receiving step involves the receiving unit receiving the first calibration information transmitted in the transmitting step; and

[0363] In the calibration step, the calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor, based on the first calibration information received in the receiving step.

[0364] [Project 33]

[0365] According to the gas sensor calibration method described in Item 32,

[0366] The object whose gas concentration is calculated based on the output of the first gas sensor is the same as the object whose gas concentration is calculated based on the output of the second gas sensor.

[0367] [Project 34]

[0368] According to the gas sensor calibration method described in item 32 or 33

[0369] The second gas sensor is disposed in the second gas sensor device.

[0370] The second gas sensor device is disposed in the interior space of the object to be measured, and the gas concentration is calculated based on the output of the second gas sensor.

[0371] [Project 35]

[0372] According to the gas sensor calibration method described in Project 34

[0373] The first gas sensor is disposed in the first gas sensor device.

[0374] The transmitting step is a step in which the transmitting unit also transmits reliability information representing the calibration reliability of the first gas sensor device.

[0375] The receiving step is a step in which the receiving unit also receives the reliability information sent in the sending step.

[0376] The calibration step is as follows: the calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the first calibration information received in the receiving step, according to the calibration reliability of the first gas sensor device.

[0377] [Project 36]

[0378] According to the gas sensor calibration method described in Project 35

[0379] The calibration step is as follows: when the self-calibration reliability of the second gas sensor device is below a predetermined second threshold and the calibration reliability of the first gas sensor device exceeds a first threshold, the calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the first calibration information received in the receiving step.

[0380] [Project 37]

[0381] According to the gas sensor calibration method described in item 35 or 36

[0382] The calibration step is as follows: the calibration unit compares the calibration reliability of the first gas sensor device received in the receiving step with the calibration reliability of the second gas sensor device. If the calibration reliability of the first gas sensor device is higher than that of the second gas sensor device, the calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the first calibration information received in the receiving step.

[0383] [Project 38]

[0384] According to the gas sensor calibration method described in item 36 or 37

[0385] It also includes a storage step, in which the storage unit stores the reliability information received in the receiving step.

[0386] The calibration step is as follows: The calibration unit compares the calibration reliability of the first gas sensor device received in the receiving step with the calibration reliability of the first gas sensor device stored in the storage step. If the calibration reliability of the first gas sensor received in the receiving step is higher than the calibration reliability stored in the storage step, the calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the first calibration information received in the receiving step.

[0387] [Project 39]

[0388] According to the gas sensor calibration method described in any of items 36 to 38

[0389] It also includes a location information acquisition step, in which the location information acquisition unit acquires the location information of the second gas sensor device.

[0390] The reliability information includes the location information of the first gas sensor device.

[0391] The calibration step is as follows: the calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the received first calibration information, according to the distance between the position of the first gas sensor device and the position of the second gas sensor device obtained in the position information acquisition step.

[0392] [Project 40]

[0393] According to the gas sensor calibration method described in Project 39

[0394] The calibration step is as follows: when the distance is less than a predetermined distance, the calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the received first calibration information.

[0395] [Project 41]

[0396] According to the gas sensor calibration method described in any of items 36 to 40

[0397] The receiving step is the step in which the receiving unit receives the first calibration information of each of the plurality of first gas sensor devices.

[0398] The calibration step is a step in which the calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor, based on the first calibration information of each of the plurality of first gas sensor devices received in the receiving step.

[0399] [Project 42]

[0400] According to the gas sensor calibration method described in Project 41,

[0401] The transmitting step is a step in which the transmitting unit also transmits the reliability information of each of the plurality of first gas sensor devices.

[0402] The receiving step is a step in which the receiving unit also receives the reliability information of each of the first gas sensor devices transmitted in the sending step.

[0403] The calibration step is as follows: the calibration unit weights the calibration reliability of each of the plurality of first gas sensor devices, and calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the weighted calibration reliability.

[0404] [Project 43]

[0405] According to the gas sensor calibration method described in Project 42,

[0406] The calibration step is as follows: the calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the highest calibration reliability among the calibration reliability of each of the plurality of first gas sensor devices.

[0407] [Project 44]

[0408] A gas sensor calibration method,

[0409] The process includes a sending step, in which the sending unit sends first calibration information to the second gas sensor device.

[0410] The first calibration information is calibration information used to calibrate the gas concentration of the measured object calculated based on the output of the first gas sensor.

[0411] [Project 45]

[0412] According to the gas sensor calibration method described in Project 44

[0413] The second gas sensor device has a second gas sensor.

[0414] The object whose gas concentration is calculated based on the output of the first gas sensor is the same as the object whose gas concentration is calculated based on the output of the second gas sensor.

[0415] [Project 46]

[0416] According to the gas sensor calibration method described in item 44 or 45

[0417] The first gas sensor is disposed in the first gas sensor device.

[0418] The sending step is a step in which the sending unit also sends reliability information representing the calibration reliability of the first gas sensor device to the second gas sensor device.

[0419] [Project 47]

[0420] A gas sensor calibration method includes the following steps:

[0421] In the receiving step, the receiving unit receives the first calibration information from the first gas sensor device; and

[0422] In the calibration step, the calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor, based on the first calibration information received by the receiving unit.

[0423] [Project 48]

[0424] According to the gas sensor calibration method described in Project 47.

[0425] The first gas sensor device has a first gas sensor.

[0426] The object whose gas concentration is calculated based on the output of the first gas sensor is the same as the object whose gas concentration is calculated based on the output of the second gas sensor.

[0427] [Project 49]

[0428] According to the gas sensor calibration method described in item 47 or 48

[0429] The second gas sensor is disposed in the interior space of the object being measured, and the gas concentration is calculated based on the output of the second gas sensor.

[0430] [Project 50]

[0431] According to the gas sensor calibration method described in any of items 47 to 49.

[0432] The receiving step is a step in which the receiving unit also receives reliability information representing the calibration reliability of the first gas sensor device.

[0433] The calibration step is as follows: the calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the first calibration information received in the receiving step, according to the calibration reliability of the first gas sensor device.

[0434] [Project 51]

[0435] According to the gas sensor calibration method described in Project 50,

[0436] The second gas sensor is disposed in the second gas sensor device.

[0437] The calibration step is as follows: when the self-calibration reliability of the second gas sensor device is below a predetermined second threshold and the calibration reliability of the first gas sensor device exceeds a first threshold, the calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the first calibration information received in the receiving step.

[0438] [Project 52]

[0439] According to the gas sensor calibration method described in Project 51,

[0440] The calibration step is as follows: the calibration unit compares the calibration reliability of the first gas sensor device received in the receiving step with the calibration reliability of the second gas sensor device. If the calibration reliability of the first gas sensor device is higher than that of the second gas sensor device, the calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the first calibration information received in the receiving step.

[0441] [Project 53]

[0442] According to the gas sensor calibration method described in item 51 or 52

[0443] It also includes a storage step, in which the storage unit stores the reliability information received in the receiving step.

[0444] The calibration step is as follows: The calibration unit compares the calibration reliability of the first gas sensor device received in the receiving step with the calibration reliability of the first gas sensor device stored in the storage step. If the calibration reliability of the first gas sensor device received in the receiving step is higher than the calibration reliability stored in the storage step, the calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the first calibration information received in the receiving step.

[0445] [Project 54]

[0446] According to the gas sensor calibration method described in any of items 51 to 53

[0447] It also includes a location information acquisition step, in which the location information acquisition unit acquires the location information of the second gas sensor device.

[0448] The reliability information includes the location information of the first gas sensor device.

[0449] The calibration step is as follows: the calibration unit calibrates the gas concentration of the measurement object calculated based on the output of the second gas sensor based on the first calibration information received in the receiving step, according to the distance between the position of the first gas sensor device and the position of the second gas sensor device obtained in the position information acquisition step.

[0450] [Project 55]

[0451] According to the gas sensor calibration method described in Project 54,

[0452] The calibration step is as follows: when the distance is less than a predetermined distance, the calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor.

[0453] [Project 56]

[0454] According to the gas sensor calibration method described in any of items 50 to 55

[0455] The receiving step is the step in which the receiving unit receives the first calibration information of each of the plurality of first gas sensor devices.

[0456] The calibration step is a step in which the calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor, based on the first calibration information of each of the plurality of first gas sensor devices received in the receiving step.

[0457] [Project 57]

[0458] According to the gas sensor calibration method described in Project 56,

[0459] The receiving step is a step in which the receiving unit also receives reliability information of each of the plurality of first gas sensor devices.

[0460] The calibration step is as follows: the calibration unit weights the calibration reliability of each of the plurality of first gas sensor devices, and calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the weighted calibration reliability.

[0461] [Project 58]

[0462] According to the gas sensor calibration method described in Project 53

[0463] The calibration step is as follows: the calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the highest calibration reliability among the calibration reliability of each of the plurality of first gas sensor devices.

[0464] [Project 59]

[0465] A gas sensor calibration program for causing a computer to perform a gas sensor calibration method as described in any one of items 32 to 43.

[0466] [Project 60]

[0467] A gas sensor calibration program for causing a computer to perform a gas sensor calibration method as described in any one of items 44 to 46.

[0468] [Project 61]

[0469] A gas sensor calibration program for causing a computer to perform a gas sensor calibration method as described in any one of items 47 to 58.

[0470] Explanation of reference numerals in the attached figures

[0471] 10: Receiving unit; 11: First gas sensor; 12: Display unit; 13: Transmitting unit; 14: Calibration unit; 15: Control unit; 16: Position information acquisition unit; 20: Receiving unit; 21: Second gas sensor; 22: Display unit; 23: Transmitting unit; 24: Calibration unit; 25: Control unit; 26: Position information acquisition unit; 30: Receiving unit; 31: Third gas sensor; 32: Display unit; 33: Transmitting unit; 34: Calibration unit; 35: Control unit; 90: Organism; 100: First gas sensor device; 110: Computation unit; 112: Storage unit; 114: AD conversion unit; 120: Computation unit; 122: Storage unit; 124: AD conversion unit; 150: Gas sensor device; 200: Second gas sensor Sensor device; 250: Gas sensor device; 300: Third gas sensor device; 400: Gas sensor system; 501: Measured object; 502: Measured object; 503: Gas; 504: Gas; 505: Measured object; 508: Internal space; 600: Gas sensor; 2200: Computer; 2201: DVD-ROM; 2210: Main controller; 2212: CPU; 2214: RAM; 2216: Graphics controller; 2218: Display device; 2220: Input / output controller; 2222: Communication interface; 2224: Hard disk drive; 2226: DVD-ROM drive; 2230: ROM; 2240: Input / output chip; 2242: Keyboard.

Claims

1. A gas sensor system, characterized in that, have: A first gas sensor device includes a transmitter that transmits first calibration information, which is used to calibrate the gas concentration of a measured object calculated based on the output of the first gas sensor. The transmitter transmits the first calibration information and reliability information indicating the calibration reliability of the first gas sensor device. as well as The second gas sensor device includes a receiving unit and a calibration unit. The receiving unit receives the first calibration information and the reliability information transmitted by the transmitting unit. The calibration unit calibrates the gas concentration of the target object calculated based on the output of the second gas sensor based on the first calibration information received by the receiving unit. Wherein, if the calibration reliability of the first gas sensor device received by the receiving unit is higher than the reference calibration reliability, the calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the received first calibration information.

2. The gas sensor system according to claim 1, characterized in that, The second gas sensor device also includes a storage unit that stores reference reliability information representing the reliability of the reference calibration. If the calibration reliability of the first gas sensor device received by the receiving unit is higher than the reference calibration reliability, the storage unit updates the reference calibration reliability based on the calibration reliability of the first gas sensor device received by the receiving unit.

3. The gas sensor system according to claim 1, characterized in that, The second gas sensor device further includes a storage unit that stores the correlation between the gas concentration of the measured object calculated based on the output of the second gas sensor and the first calibration information. The calibration unit calculates the second calibration information based on the first calibration information received by the receiving unit and the correlation stored in the storage unit. The calibration unit calibrates the gas concentration of the measured object, calculated based on the output of the second gas sensor, using the calculated second calibration information.

4. The gas sensor system according to claim 1, characterized in that, If the calibration reliability of the first gas sensor device received by the receiving unit is higher than the self-calibration reliability of the second gas sensor device, the calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the received first calibration information.

5. The gas sensor system according to any one of claims 1 to 4, characterized in that, The object whose gas concentration is calculated based on the output of the first gas sensor is the same as the object whose gas concentration is calculated based on the output of the second gas sensor.

6. The gas sensor system according to any one of claims 1 to 4, characterized in that, The first gas sensor device includes the first gas sensor. The first gas sensor device is a portable terminal.

7. The gas sensor system according to claim 6, characterized in that, The second gas sensor device is disposed in the internal space of the object to be measured, and the gas concentration is calculated based on the output of the second gas sensor.

8. The gas sensor system according to any one of claims 1 to 4, characterized in that, The second gas sensor device includes the second gas sensor. The second gas sensor device is a portable terminal.

9. The gas sensor system according to any one of claims 1 to 4, characterized in that, When the self-calibration reliability of the second gas sensor device is below a predetermined second threshold and the calibration reliability of the first gas sensor device exceeds a first threshold, the calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the received first calibration information.

10. The gas sensor system according to claim 9, characterized in that, When the self-calibration reliability of the second gas sensor device is below the second threshold, the second gas sensor device enters a standby state.

11. The gas sensor system according to any one of claims 1 to 4, characterized in that, The second gas sensor device further includes a position information acquisition unit, which acquires the position information of the second gas sensor device. The reliability information includes the location information of the first gas sensor device. The calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the received first calibration information, according to the distance between the position of the first gas sensor device and the position of the second gas sensor device obtained by the position information acquisition unit.

12. The gas sensor system according to claim 11, characterized in that, When the distance is less than a predetermined distance, the calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the received first calibration information.

13. The gas sensor system according to any one of claims 1 to 4, characterized in that, It is equipped with multiple first gas sensor devices. The receiving unit receives the first calibration information and the reliability information of each of the plurality of first gas sensor devices. The calibration unit weights the calibration reliability of each of the plurality of first gas sensor devices, and calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the weighted calibration reliability.

14. The gas sensor system according to claim 13, characterized in that, The calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the highest calibration reliability among the calibration reliability of each of the plurality of first gas sensor devices.

15. The gas sensor system according to claim 13, characterized in that, If the reliability information received by the receiving unit includes reliability information where the calibration reliability of the first gas sensor device is lower than a first threshold, the calibration unit will exclude the calibration reliability information lower than the first threshold from the above-mentioned weighted calculation.

16. The gas sensor system according to claim 15, characterized in that, The calibration unit sets the weight of calibration reliability below the first threshold to zero.

17. The gas sensor system according to claim 1, characterized in that, The reliability information includes multiple usernames and the past usage history of the first gas sensor device for each username. The calibration reliability of the first gas sensor device is lower when it is used by a specific user than when it is used by other users.

18. The gas sensor system according to claim 17, characterized in that, The second gas sensor device also has a storage unit that stores information about the specific user.

19. A gas sensor calibration method, characterized in that, Includes the following steps: In the sending step, the sending unit sends first calibration information and reliability information. The first calibration information is calibration information used to calibrate the gas concentration of the measured object calculated based on the output of the first gas sensor. The reliability information is reliability information representing the calibration reliability of the first gas sensor device. In the receiving step, the receiving unit receives the first calibration information and the reliability information transmitted in the sending step; as well as In the calibration step, the calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor, based on the first calibration information received in the receiving step. The calibration step is as follows: if the calibration reliability of the first gas sensor device received in the receiving step is higher than the reference calibration reliability, the calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the received first calibration information.

20. The gas sensor calibration method according to claim 19, characterized in that, It also includes a storage step, in which the storage unit stores the reliability information received in the receiving step. The storage step includes an update step, in which, if the calibration reliability of the first gas sensor device received in the receiving step is higher than the reference calibration reliability, the storage unit updates the reference calibration reliability based on the calibration reliability of the first gas sensor device received in the receiving step.

21. The gas sensor calibration method according to claim 19, characterized in that, The storage unit pre-stores the correlation between the gas concentration of the measured object, calculated based on the output of the second gas sensor, and the first calibration information. The calibration step is as follows: the calibration unit calculates second calibration information based on the first calibration information received in the receiving step and the correlation stored in the storage unit, and calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the calculated second calibration information.

22. The gas sensor calibration method according to claim 19, characterized in that, The second gas sensor is disposed in the second gas sensor device. The calibration step is as follows: if the calibration reliability of the first gas sensor device received in the receiving step is higher than the self-calibration reliability of the second gas sensor device, the calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the received first calibration information.

23. The gas sensor calibration method according to any one of claims 19 to 22, characterized in that, The object whose gas concentration is calculated based on the output of the first gas sensor is the same as the object whose gas concentration is calculated based on the output of the second gas sensor.

24. The gas sensor calibration method according to any one of claims 19 to 22, characterized in that, The second gas sensor is disposed in the second gas sensor device. The second gas sensor device is disposed in the interior space of the object to be measured, and the gas concentration is calculated based on the output of the second gas sensor.

25. The gas sensor calibration method according to any one of claims 19 to 22, characterized in that, The second gas sensor is disposed in the second gas sensor device. The calibration step is as follows: when the self-calibration reliability of the second gas sensor device is below a predetermined second threshold and the calibration reliability of the first gas sensor device exceeds a first threshold, the calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the first calibration information received in the receiving step.

26. The gas sensor calibration method according to claim 25, characterized in that, If the self-calibration reliability of the second gas sensor device is below the second threshold, the second gas sensor device is put into standby mode.

27. The gas sensor calibration method according to any one of claims 19 to 22, characterized in that, The second gas sensor is disposed in the second gas sensor device. The gas sensor calibration method further includes a location information acquisition step, in which the location information acquisition unit acquires the location information of the second gas sensor device. The reliability information includes the location information of the first gas sensor device. The calibration step is as follows: the calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the received first calibration information, according to the distance between the position of the first gas sensor device and the position of the second gas sensor device obtained in the position information acquisition step.

28. The gas sensor calibration method according to claim 27, characterized in that, The calibration step is as follows: when the distance is less than a predetermined distance, the calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the received first calibration information.

29. The gas sensor calibration method according to any one of claims 19 to 22, characterized in that, The receiving step is as follows: the receiving unit receives the first calibration information and the reliability information of each of the plurality of first gas sensor devices. The calibration step is as follows: the calibration unit weights the calibration reliability of each of the plurality of first gas sensor devices, and calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the weighted calibration reliability.

30. The gas sensor calibration method according to claim 29, characterized in that, The calibration step is as follows: the calibration unit calibrates the gas concentration of the measured object calculated based on the output of the second gas sensor based on the highest calibration reliability among the calibration reliability of each of the plurality of first gas sensor devices.

31. The gas sensor calibration method according to claim 29, characterized in that, The calibration step is as follows: if the reliability information received in the receiving step includes reliability information where the calibration reliability of the first gas sensor device is lower than a first threshold, the calibration unit excludes the calibration reliability information lower than the first threshold and performs the above-mentioned weighted calculation.

32. The gas sensor calibration method according to claim 31, characterized in that, The calibration step is as follows: the calibration unit sets the weight of the calibration reliability below the first threshold to zero.

33. The gas sensor calibration method according to claim 19, characterized in that, The reliability information includes multiple usernames and the past usage history of the first gas sensor device for each username. The calibration reliability of the first gas sensor device is lower when it is used by a specific user than when it is used by other users.

34. A computer program product comprising a gas sensor calibration program, the gas sensor calibration program being used to cause a computer to perform a gas sensor calibration method according to any one of claims 19 to 33.

35. A computer-readable medium for storing a gas sensor calibration program for causing a computer to perform the gas sensor calibration method according to any one of claims 19 to 33.

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