CN111366682B - Calibration method and device of gas sensor, electronic equipment and storage medium - Google Patents

Abstract

Embodiments of the present application relate to a method, device, electronic device, and storage medium for calibrating a gas sensor. The method includes: acquiring first opening data of a planned opening, where the planned opening is smaller than the actual opening of the gas sensor; The first opening data is used to calibrate the gas sensor placed in the sample gas environment; the acceptable hole blocking range of the gas sensor is determined according to the first opening data and a preset positive and negative error range. The calibration method, device, electronic device and storage medium of the above-mentioned gas sensor can improve the acceptable range of hole plugging of the gas sensor and prolong the service life of the gas sensor.

Description

Calibration method, device, electronic device and storage medium for gas sensor

technical field

The present application relates to the technical field of sensors, and in particular, to a calibration method, device, electronic device and storage medium for a gas sensor.

Background technique

A gas sensor is a converter that converts a certain gas volume fraction into a corresponding electrical signal. A gas sensor can convert information such as gas composition and concentration into information that can be used by personnel, instruments, computers, etc. Gas sensors (such as formaldehyde sensors, etc.) usually need to be used in conjunction with waterproof and breathable membranes. As more and more pollutants come into contact with them during use, the waterproof and breathable membrane may block holes, resulting in a decrease in the sensitivity of the gas sensor, affecting the The service life of the gas sensor.

SUMMARY OF THE INVENTION

The embodiments of the present application disclose a calibration method, device, electronic device and storage medium for a gas sensor, which can improve the acceptable range of hole blocking of the gas sensor and prolong the service life of the gas sensor.

An embodiment of the present application provides a method for calibrating a gas sensor, including: acquiring first opening data of a planned opening, where the planned opening is smaller than the actual opening of the gas sensor; The gas sensor in the sample gas environment is calibrated; according to the first opening data and a preset positive and negative error range, the acceptable hole blocking range of the gas sensor is determined.

An embodiment of the present application provides a calibration device for a gas sensor, including: a data acquisition module for acquiring first opening data of a planned opening, where the planned opening is smaller than the actual opening of the gas sensor; a calibration module for The gas sensor placed in the sample gas environment is calibrated based on the first opening data; a hole blocking range determination module is used to determine the The range of hole plugging that the gas sensor can accept.

An embodiment of the present application provides an electronic device, including a memory and a processor, where a computer program is stored in the memory, and when the computer program is executed by the processor, the processor implements the above method.

Embodiments of the present application provide a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the above method is implemented.

The calibration method, device, electronic device and storage medium of the gas sensor provided by the above-mentioned embodiments obtain the first opening data of the planned opening, and the planned opening is smaller than the actual opening of the gas sensor. The gas sensor placed in the sample gas environment is calibrated, and according to the first opening data and the preset positive and negative error range, the acceptable blocking range of the gas sensor is determined, and the opening that is smaller than the planned opening of the actual opening is used. The data is used to calibrate the gas sensor, and within the positive and negative error range of the planned hole opening data, it can be used as an acceptable hole blocking range, which can improve the acceptable hole blocking range of the gas sensor and prolong the service life of the gas sensor.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present application more clearly, the following briefly introduces the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

1 is a flowchart of a calibration method for a gas sensor in one embodiment;

Fig. 2a is a schematic diagram of an acceptable range of hole plugging that is calibrated with actual hole opening data in one embodiment;

Fig. 2b is a schematic diagram of an acceptable hole blocking range calibrated with the opening data of the planned opening smaller than the actual opening in one embodiment;

Fig. 3 is the flow chart of obtaining the first drilling data of planned drilling in one embodiment;

4 is a flowchart of a calibration method for a gas sensor in another embodiment;

5 is a flowchart of a calibration method for a gas sensor in yet another embodiment;

6 is a block diagram of a calibration device for a gas sensor in one embodiment;

FIG. 7 is a structural block diagram of an electronic device in one embodiment.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

It should be noted that the terms "comprising" and "having" in the embodiments of the present application and the accompanying drawings and any modifications thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally also includes For other steps or units inherent to these processes, methods, products or devices.

It will be understood that the terms "first", "second", etc. used in this application may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish a first element from another element. For example, a first client may be referred to as a second client, and similarly, a second client may be referred to as a first client, without departing from the scope of this application. Both the first client and the second client are clients, but they are not the same client.

When the gas sensor is used in combination with the waterproof and breathable membrane, the waterproof and breathable membrane will come into contact with a large amount of pollutants during use. When there are too many pollutants, the waterproof and breathable membrane will have a hole blocking problem, resulting in the effective area of the opening of the gas sensor. decrease. Since the sensitivity of the gas sensor is closely related to the size of the opening, when the effective area of the opening is lower than the tolerance range of the gas sensor, the gas detection accuracy of the gas sensor will be greatly reduced, thereby affecting the service life of the gas sensor.

The gas sensor needs to be calibrated before leaving the factory. In the traditional way, the calibration is usually performed by the actual opening of the gas sensor, which can be within the allowable error range during use. The tolerable hole blocking range of the gas sensor is the allowable error range of the actual opening, which is small, resulting in a small tolerable hole blocking range of the gas sensor, which affects the service life of the gas sensor.

In view of the above problems, the embodiments of the present application provide a method, device, electronic device and storage medium for calibrating a gas sensor. The positive and negative error range of the opening data can be used as an acceptable hole blocking range, which expands the acceptable hole blocking range of the gas sensor and prolongs the service life of the gas sensor.

As shown in FIG. 1 , in one embodiment, a method for calibrating a gas sensor is provided, which can be applied to electronic devices such as a desktop computer, a personal computer (PC, Personal Computer), and a tablet computer. The method may include the following steps:

Step 110: Acquire first opening data of the planned opening, where the planned opening is smaller than the actual opening of the gas sensor.

The gas sensor needs to be calibrated before leaving the factory. It can refer to using the standard gas with known concentration as the input value, placing the gas sensor in a sealed container filled with standard gas, and adjusting the pressure, concentration, temperature and flow rate of the gas. And so on, and then analyze the detection tolerance of the gas sensor under different conditions, and realize the accurate calibration of the measurement accuracy of the gas sensor.

The planned opening may refer to the opening used by the gas sensor during calibration. In some embodiments, when the gas sensor is combined with the waterproof and breathable membrane, it is necessary to open the opening and cooperate with the waterproof and breathable membrane to achieve waterproof and detection. effect of gas. When calibrating the gas sensor, the first opening data of the planned opening can be obtained, wherein the first opening data may include but not limited to the opening area, opening diameter, opening radius, etc. of the planned opening. An aperture data can be used to characterize the size of the planned aperture.

In the embodiment of the present application, the planned opening is smaller than the actual opening of the gas sensor, the actual opening refers to the opening actually opened by the gas sensor, and the planned opening smaller than the actual opening is used to calibrate the gas sensor. Optionally, there can be various ways to reduce the size of the opening of the gas sensor during calibration. The size of the hole is smaller than that of the actual opening, and two kinds of parts with openings of different sizes can also be made. When the gas sensor is calibrated, the part with the smaller opening is used for calibration, and then the opening is replaced after the calibration is completed. The method of reducing the aperture size of the gas sensor during calibration is not limited here.

Step 120, calibrating the gas sensor placed in the sample gas environment based on the first opening data.

The gas sensor can be placed in a sample gas environment, and the sample gas environment contains sample gas with a known concentration, and the sample gas can be the gas to be detected by the gas sensor. For example, if the gas sensor is a formaldehyde sensor, the sample gas can have a known concentration of formaldehyde. The gas sensor detects the sample gas concentration in the sample gas environment, and can compare the detected sample gas concentration with the known concentration to confirm the error between the two, and then adjust the setting parameters in the gas sensor according to the error. Part parameters, etc., until the error between the concentration output by the gas sensor and the known concentration is less than the threshold, so as to complete the calibration of the measurement accuracy of the gas sensor.

The gas sensor placed in the sample gas environment is calibrated according to the first opening data, that is, the gas sensor is calibrated by using a planned opening smaller than the actual opening. The gas sensor can record the first opening data and use it during use. , and based on the first hole opening data, determine the tolerable hole blocking range.

Step 130: Determine a hole blocking range acceptable to the gas sensor according to the first hole opening data and a preset positive and negative error range.

The positive and negative error range can refer to the error range of the calibrated drilling data in use. In the process of using the gas sensor, the size of the effective hole is within the positive and negative error range of the calibrated hole data, which can belong to normal use. The effective hole refers to the part of the actual opening except for the blocked hole, that is, the part of the actual opening that can flow gas. The error range of the calibrated drilling data includes not only a threshold value larger than the calibrated drilling data, but also a side threshold smaller than the calibration drilling data, which is equivalent to the calibration drilling data±error threshold. In one embodiment, the positive and negative error range can be represented by ±X%, where X% can refer to an error threshold, and the error threshold is X% of the calibrated drilling data, where X can be set according to actual needs , which is not limited here.

Optionally, when the types of the first opening data are different, the error thresholds of the corresponding positive and negative error ranges may be different. For example, when the first opening data is the opening area and the opening radius, they may correspond to different Error threshold.

In the traditional method, the calibration is usually performed with the opening data of the actual opening of the gas sensor. Therefore, the acceptable blocking range of the gas sensor is only used for the side of the opening data that is smaller than the actual opening in the positive and negative error range. data to be determined. The acceptable blocking range of the gas sensor can be greater than or equal to the opening size of the actual opening - X% * the opening size of the actual opening, and less than or equal to the opening size of the actual opening. When the size of the effective hole is within the negative error range of the actual hole opening data, it belongs to the normal use. Since there is no situation where the effective hole is larger than the actual opening, the positive error range is not utilized, resulting in a smaller hole blocking range tolerable for the gas sensor.

In the embodiment of the present application, the calibration is performed using the first opening data of the planned opening that is smaller than the actual opening. The acceptable blocking range of the gas sensor can be greater than or equal to the opening size of the planned opening -X%*the opening size of the planned opening, and less than or equal to the opening size of the planned opening +X%*The planned opening The size of the hole and the range of positive and negative errors have been used, which expanded the range of hole plugging that the gas sensor can tolerate.

Optionally, it is possible to judge whether the boundary value of the positive and negative error ranges is greater than the second opening data of the actual opening according to the first opening data of the planned opening and the positive error threshold, and then the size of the opening of the planned opening can be judged. Whether the positive error boundary value is greater than the actual opening size of the opening, if it is greater than, the gas sensor can accept the plugging range can be greater than or equal to the opening size of the planned opening - X% * the opening size of the planned opening , and less than or equal to the actual opening size.

FIG. 2 a is a schematic diagram of an acceptable hole blocking range calibrated with actual hole opening data in an embodiment. Referring to FIG. 2a, the gas sensor is calibrated with the opening data of the actual opening 202 of the gas sensor. The acceptable range of the gas sensor can be determined by using the positive and negative error range of the opening data of the actual opening 202. The obtained acceptable hole blocking range can be shown in the shaded part 204, only the negative error range of the opening data of the actual opening 202 is used, and the positive error range is not used. Fig. 2b is a schematic diagram of an acceptable hole blocking range calibrated with the opening data of the planned opening smaller than the actual opening in one embodiment. Referring to FIG. 2b, the gas sensor is calibrated with the opening data of the planned opening 206 smaller than the actual opening of the gas sensor. The acceptable blocking range of the gas sensor can be based on the positive and negative errors of the opening data of the planned opening 206. The acceptable range of plugging can be determined as shown in the shaded part 208, and both the positive and negative error ranges can be effectively used. Without changing the hardware structure of the gas sensor, by simply improving the calibration method of the gas sensor, the acceptable plugging range of the gas sensor is effectively expanded, and the life of the gas sensor is prolonged.

It can be understood that the calibration method of the gas sensor provided in the embodiments of the present application can be implemented by a calibration device for calibrating a gas sensor, and can also be implemented by other electronic devices, and the implementation subject is not limited here.

In the embodiment of the present application, the first opening data of the planned opening is obtained, the planned opening is smaller than the actual opening of the gas sensor, and the gas sensor placed in the sample gas environment is calibrated based on the first opening data, And according to the first opening data and the preset positive and negative error range to determine the acceptable blocking range of the gas sensor, and use the opening data of the planned opening smaller than the actual opening to calibrate the gas sensor. The positive and negative error range of the opening data can be used as an acceptable hole blocking range, so that the acceptable hole blocking range of the gas sensor can be improved and the service life of the gas sensor can be prolonged.

As shown in Figure 3, in one embodiment, the step of acquiring the first drilling data of the planned drilling may include the following steps:

Step 302 , determining a preset area difference, the area difference being the difference between the first opening area of the planned opening and the second opening area of the actual opening of the gas sensor.

In some embodiments, the first opening data of the planned opening may include, but not limited to, the first opening area of the planned opening, the first opening diameter, the first opening radius, etc., the actual opening of the gas sensor. The second opening data may include, but not limited to, the second opening area, the second opening diameter, the second opening radius, etc. of the actual opening, and the second opening data of the actual opening may be used to characterize the opening of the actual opening. hole size.

The area difference between the planned opening and the actual opening can be determined, and the area difference can be preset. Optionally, the area difference can be set according to actual needs, or according to the actual opening size of the opening and the critical value of the positive and negative error ranges. The area difference may have a positive correlation with the second opening area of the actual opening. When the second opening area of the actual opening is larger, the area difference may be larger. As a specific implementation manner, the area difference can be positively correlated with the preset error threshold of the positive and negative error range. For example, the positive and negative error range is represented by ±X%, and the error threshold can be X%. When it is larger, the set area difference can be larger.

Step 304: Obtain the first opening area according to the area difference and the second opening area.

Optionally, the area difference may be subtracted from the second opening area of the actual opening to obtain the first opening area of the planned opening. As a specific embodiment, the area difference can be obtained by multiplying the first opening area of the planned opening by the error threshold, that is, the first opening area of the planned opening + the first opening area of the planned opening*X %=Second opening area of the actual opening. It can be satisfied that during the use of the gas sensor, the positive error range of the first opening area of the planned opening is just the second opening area of the actual opening. In this case, the acceptable blocking area of the gas sensor can reach maximum, so that the actual openings are used more efficiently and the impact on the gas detection accuracy is reduced. In other embodiments, the area difference may also be larger or smaller than the value of the first aperture area of the planned aperture multiplied by the error threshold, which is not limited herein.

In one embodiment, when the gas sensor is calibrated, the actual opening can be blocked to obtain a planned opening smaller than the actual opening, and the first opening area of the planned opening can also be directly detected by means of a distance sensor, etc., The manner of obtaining the first opening area of the planned opening is not limited herein.

In the embodiment of the present application, the first opening area of the planned opening is determined according to the preset area difference, and the opening area smaller than the actual opening is used to calibrate the gas sensor, which can improve the range of hole blocking acceptable to the gas sensor. , and the method of obtaining the first opening area of the planned opening is simple, which improves the calibration efficiency.

As shown in FIG. 4 , in one embodiment, a method for calibrating a gas sensor is provided, comprising the following steps:

Step 402 , acquiring first opening data of the planned opening, where the planned opening is smaller than the actual opening of the gas sensor.

Step 404 , calibrate the gas sensor placed in the sample gas environment based on the first aperture data.

Step 406 , according to the first hole opening data and the preset positive and negative error range, determine the hole blocking range acceptable to the gas sensor.

For the description of steps 402 to 406, reference may be made to the descriptions in the foregoing embodiments, and details are not repeated here.

Step 408: Determine the effective hole range according to the second hole opening data of the actual hole opening and the hole plugging range.

The effective hole can refer to the part of the actual opening of the gas sensor other than the blocked hole. During the use of the gas sensor, due to the blocking problem of the waterproof and breathable membrane, the size of the available opening in the actual opening gradually changes. A small, effective hole may refer to the portion of the actual opening that is available during use. After determining the acceptable plugging range of the gas sensor according to the first opening data and the positive and negative error range of the planned opening used in the calibration of the gas sensor, it can be determined according to the second opening data of the actual opening and the plugging range. Effective hole range. The plugging range can be expressed in various ways such as the area range, radius range, and diameter range of the opening, and the effective hole range can also be expressed in various ways such as the area range, radius range, and diameter range of the opening. For example, the acceptable plugging range of the gas sensor is 5 mm to 15 mm in radius, and the radius of the actual opening is 15 mm, then the effective hole range can be 5 mm to 15 mm in radius, and it can also be expressed by area, diameter, etc. It is not limited here.

In one embodiment, the effective pore range of the gas sensor may be consistent with the acceptable pore blocking range. The effective hole range of the gas sensor may also be smaller than the acceptable hole blocking range. For example, the acceptable hole blocking range of the gas sensor is 5 mm to 15 mm in radius, and the effective hole range is 6 mm to 15 mm in radius, etc., but not limited to this .

Step 410, when the gas sensor is in use, detect the effective hole data of the actual opening.

When the gas sensor is in use, it can mean that the gas sensor is officially used to perform the work of detecting gas (non-calibration process). When in use, the gas sensor can be used to detect the gas concentration of the target gas in an unknown environment. When the gas sensor is in use, the effective hole data of the actual opening can be detected, and the effective hole data can be used to characterize the effective hole size of the actual opening during use, that is, the actual opening is not blocked during use. portion size. Effective hole data may include, but is not limited to, the area, radius, diameter, etc. of the effective hole.

Step 412, when the valid hole data is not within the valid hole range, determine that the actual hole opening is in an unavailable state.

It can be judged whether the detected valid hole data is within the valid hole range. When the detected valid hole data is not within the valid hole range, it can be shown that the size of the valid hole can no longer meet the accuracy of gas detection by the gas sensor, which affects the gas The detection sensitivity of the sensor can determine that the actual opening is not available.

It can be understood that when the range comparison is performed, the detected effective hole data and the effective hole range can be the same type of data, for example, the detected effective hole data can be the detected effective hole area, and the corresponding effective hole range can be valid. The area range of the hole, the detected effective hole data may be the detected effective hole radius, and the corresponding effective hole range may be the effective hole radius range and the like.

For example, in one embodiment, assuming that the actual hole diameter is 1.8 mm and the planned hole diameter is 1.4 mm, the percentage of different effective hole diameters relative to the planned hole diameter can be calculated, and the results can be shown in Table 1. Show.

Table 1

Among them, the average response variation refers to the percentage of different effective pore diameters relative to the planned opening diameters. If the positive and negative error range is ±30%, it can be judged whether the average response variance corresponding to each effective hole diameter is within the positive and negative error range, so as to determine whether the actual opening is available. As shown in Table 1, when the effective hole diameter is 1.0 mm, the corresponding average response variance is -35%, which exceeds the positive and negative error range, it can be determined that the actual opening is in an unusable state. Under the condition that the actual opening diameter is 1.8 mm and the planned opening diameter is 1.4 mm, the acceptable plugging range of the gas sensor can be 1.8 mm to 1.2 mm, which expands the acceptable plugging range.

In some embodiments, the above-mentioned step of detecting the valid hole data and comparing it with the valid hole range may be a gas sensor, or a terminal device monitoring the gas sensor, etc. The terminal device monitors the valid hole data of the gas sensor, It can monitor the usage of the gas sensor and display the usage of the gas sensor in the interface, so that the user can obtain the usage of the gas sensor more directly. gas concentration, how long the gas sensor has been used, etc. Optionally, when it is determined that the actual opening of the gas sensor is in an unavailable state, prompt information may also be generated, indicating that the actual opening of the gas sensor is unavailable.

In the embodiment of the present application, the effective hole range can be determined according to the second opening data of the actual opening and the plugging range, and the effective hole data is detected during the use of the gas sensor, and when the effective hole data is not in the effective hole When the actual opening is determined to be unavailable, the use state of the gas sensor can be known in time, and the use efficiency of the gas sensor can be improved.

As shown in FIG. 5 , in another embodiment, a method for calibrating a gas sensor is provided, comprising the following steps:

Step 502 , acquiring first opening data of the planned opening, where the planned opening is smaller than the actual opening of the gas sensor.

In one embodiment, the first opening data may include a first opening area, and a preset area difference may be determined, where the area difference is a difference between the first opening area of the planned opening and the actual opening area of the gas sensor. The difference between the two opening areas, and the first opening area is obtained according to the area difference and the second opening area. Optionally, the area difference is positively correlated with the error thresholds of the positive and negative error ranges.

Step 504 , calibrate the gas sensor placed in the sample gas environment based on the first aperture data.

Step 506 , according to the first hole opening data and the preset positive and negative error range, determine the hole blocking range acceptable to the gas sensor.

For the description of steps 502 to 506, reference may be made to the descriptions in the foregoing embodiments, and details are not repeated here.

Step 508 , when the gas sensor is in use state, detect the hole blocking data of the actual opening.

The blocked hole may refer to the blocked part of the actual opening. When the gas sensor detects gas, the gas can only flow through the unblocked part of the actual opening (ie, the effective hole). When the gas sensor is in use, the plugging data of the actual opening can be detected, and the plugging data can be used to characterize the size of the actual opening during use, that is, the part of the actual opening that has been blocked during use. . The plugged hole data may include, but is not limited to, the area, radius, and diameter of the plugged hole. It can be understood that when the hole plugging data is a radius or a diameter, it can be a numerical range. For example, the radius of the blocked hole is the part of 10 mm to 15 mm in the actual opening.

In one embodiment, the total use time of the gas sensor can be obtained, and the total use time can refer to the total working time of the gas sensor. After the gas sensor is turned on, the working time of each time can be counted and accumulated to obtain the gas sensor. total usage time. The plugging data can be obtained according to the total usage time of the gas sensor. There may be a corresponding relationship between the use time and the plugging data. The longer the use time, the larger the corresponding plugging data. When detecting the hole blocking data, the current total usage time of the gas sensor can be obtained, and according to the corresponding relationship between the usage time and the hole blocking data, the hole blocking data corresponding to the total usage time of the gas sensor can be obtained.

The correspondence between the usage time and the plugging data can be established in different ways. In one embodiment, the corresponding relationship between the duration of use and the hole blocking data can be constructed through experimental data, the gas sensor can be placed in the experimental gas environment, and the hole blocking of the actual opening of the gas sensor in different time periods can be monitored. size. For example, the corresponding relationship between the duration of use and the plugging data can be shown in Table 1.

Table 1

The hole blocking data in Table 1 is expressed by the radius range of the blocked part in the actual opening, and can also be expressed in other ways, which is not limited here.

In one embodiment, the corresponding relationship between the usage time and the hole plugging data is constructed by using the experimental data, the gas sensor can be placed in different experimental gas environments, and the gas environment parameters of each experimental gas environment can be different, wherein the gas The environmental parameters may include the gas components contained in the experimental gas environment, and the concentrations of various gases. According to the data collected in each experimental gas environment, the corresponding relationship between different usage time and hole plugging data can be constructed. For example, in the formaldehyde environment with different concentrations, the corresponding relationship between the use time and the plugging data can be shown in Table 2.

Table 2

Formaldehyde concentration Use time plugging data 0.1mg/m³ 3 months 13mm～15mm 0.2mg/m³ 3 months 12mm～15mm 0.3mg/m³ 3 months 10mm～15mm

It can be understood that the corresponding relationship between the usage time and the hole plugging data is not limited to the data in Table 1 and Table 2 above, and the corresponding relationship can be constructed according to the actual use of the gas sensor.

In some embodiments, when the gas sensor is in use, the gas environment parameters in which the gas sensor is located can be obtained, and the gas environment parameters can include gas components contained in the gas environment and the concentrations of various gases. The corresponding relationship between the usage time and the hole plugging data can be determined according to the gas environment parameters, and different corresponding relationships can be matched under different gas environment parameters. The total use time of the gas sensor can be obtained, and the plugging data corresponding to the total use time can be obtained according to the corresponding relationship between the use time matching the gas environment parameters of the current gas environment and the plugging data. Based on the corresponding relationship between the use time and the hole blocking data, detecting the hole blocking data during the use of the gas sensor can make the detected data more accurate.

Step 510, when the hole blocking data is not within the hole blocking range, determine that the actual hole opening is in an unavailable state.

After determining the acceptable hole blocking range of the gas sensor according to the first hole opening data and the positive and negative error range of the planned hole used in the calibration of the gas sensor, it can be determined whether the detected hole blocking data is within the hole blocking range. When the hole blocking data is within the hole blocking range, it can be shown that the available part of the actual opening is relatively large, which does not affect the detection sensitivity of the gas sensor. When the plugging data is not within the range of plugging, it can be shown that the plugging of the actual opening is too large, which affects the detection sensitivity of the gas sensor, and it can be determined that the actual opening is in an unavailable state.

In some embodiments, the effective hole range can also be determined according to the second opening data of the actual opening and the plugging range. When the gas sensor is in use, the effective hole data of the actual opening is detected. When the valid hole data is not When it is within the valid hole range, it is determined that the actual opening is in an unavailable state. Optionally, the effective hole data can be detected according to gas data such as the flow rate and flow volume of the gas, or after the hole blocking data is detected first, the effective hole data can be obtained according to the hole blocking data and the second hole opening data of the actual opening. The detection method is not limited here.

In some embodiments, the above step of detecting the hole blocking data and comparing it with the hole blocking range may be a gas sensor, or a terminal device monitoring the gas sensor, or the like.

In the embodiment of the present application, the hole blocking data is detected during the use of the gas sensor, and when the hole blocking data is not within an acceptable hole blocking range, it is determined that the actual opening is in an unavailable state, and the use of the gas sensor can be known in time. state and improve the efficiency of the gas sensor.

As shown in FIG. 6 , in one embodiment, a gas sensor calibration device 600 is provided, including a data acquisition module 610 , a calibration module 620 and a hole blocking range determination module 630 .

The data acquisition module 610 is configured to acquire the first opening data of the planned opening, where the planned opening is smaller than the actual opening of the gas sensor.

The calibration module 620 is configured to calibrate the gas sensor placed in the sample gas environment based on the first opening data.

The hole blocking range determination module 630 is configured to determine the hole blocking range acceptable to the gas sensor according to the first hole opening data and the preset positive and negative error range.

In the embodiment of the present application, the first opening data of the planned opening is obtained, the planned opening is smaller than the actual opening of the gas sensor, and the gas sensor placed in the sample gas environment is calibrated based on the first opening data, And according to the first opening data and the preset positive and negative error range to determine the acceptable blocking range of the gas sensor, use the opening data of the planned opening smaller than the actual opening to calibrate the gas sensor. The positive and negative error range of the opening data can be used as an acceptable hole blocking range, so that the acceptable hole blocking range of the gas sensor can be improved and the service life of the gas sensor can be prolonged.

In one embodiment, the first aperture data includes a first aperture area.

The data acquisition module 610 includes a difference determination unit and an area acquisition unit.

The difference determination unit is used for determining a preset area difference, where the area difference is the difference between the first opening area of the planned opening and the second opening area of the actual opening of the gas sensor.

In one embodiment, the area difference is positively correlated with the error threshold of the positive and negative error ranges.

The area obtaining unit is used for obtaining the first opening area according to the area difference and the second opening area.

In the embodiment of the present application, the first opening area of the planned opening is determined according to the preset area difference, and the opening area smaller than the actual opening is used to calibrate the gas sensor, which can improve the range of hole blocking that the gas sensor can accept. , and the method of obtaining the first opening area of the planned opening is simple, which improves the calibration efficiency.

In one embodiment, the gas sensor calibration device 600 includes, in addition to a data acquisition module 610, a calibration module 620, and a hole blocking range determination module 630, an effective hole range determination module, a first detection module, and a state determination module.

The effective hole range determination module is used to determine the effective hole range according to the second opening data of the actual opening and the plugging range, wherein the effective hole is the part of the actual opening except the plugging hole.

The first detection module is used to detect the effective hole data of the actual opening when the gas sensor is in use, and the effective hole data is used to represent the effective hole size of the actual opening during use.

The state determination module is used to determine that the actual opening is in an unavailable state when the valid hole data is not within the valid hole range.

In the embodiment of the present application, the effective hole range can be determined according to the second opening data of the actual opening and the plugging range, and the effective hole data is detected during the use of the gas sensor, and when the effective hole data is not in the effective hole When the actual opening is determined to be unavailable, the use state of the gas sensor can be known in time, and the use efficiency of the gas sensor can be improved.

In one embodiment, the calibration device 600 of the above-mentioned gas sensor, in addition to the data acquisition module 610, the calibration module 620, the blockage range determination module 630, the effective hole range determination module, the first detection module and the state determination module, also includes a Two detection modules.

The second detection module is used to detect the plugging data of the actual opening when the gas sensor is in use, and the plugging data is used to characterize the size of the plugging of the actual opening during use.

In one embodiment, the second detection module includes a duration acquiring unit and a corresponding unit.

The duration acquisition unit is used to acquire the total usage duration of the gas sensor;

The corresponding unit is used to obtain the hole plugging data corresponding to the total use time according to the corresponding relationship between the use time and the hole plugging data.

In one embodiment, the corresponding unit includes a parameter acquisition subunit, a relationship determination subunit, and a data acquisition subunit.

The parameter acquisition subunit is used to acquire the gas environment parameters where the gas sensor is located.

The relationship determination subunit is used to determine the corresponding relationship between the usage time and the hole plugging data according to the gas environment parameters.

The data acquisition subunit is used to acquire the hole plugging data corresponding to the total usage time according to the determined correspondence.

The state determination module is also used to determine that the actual opening is in an unavailable state when the hole blocking data is not within the hole blocking range.

In the embodiment of the present application, the hole blocking data is detected during the use of the gas sensor, and when the hole blocking data is not within an acceptable hole blocking range, it is determined that the actual opening is in an unavailable state, and the use of the gas sensor can be known in time. state and improve the efficiency of the gas sensor.

FIG. 7 is a structural block diagram of an electronic device in one embodiment. As shown in FIG. 7, the electronic device 700 may include one or more of the following components: a processor 710, a memory 720 coupled to the processor 710, wherein one or more application programs may be stored in the memory 720 and configured by One or more processors 710 execute, one or more programs configured to perform the methods described in the above embodiments.

Processor 710 may include one or more processing cores. The processor 710 uses various interfaces and lines to connect various parts of the entire electronic device 700, and executes by running or executing the instructions, programs, code sets or instruction sets stored in the memory 720, and calling the data stored in the memory 720. Various functions of the electronic device 700 and processing data. Optionally, the processor 710 may employ at least one of digital signal processing (Digital Signal Processing, DSP), field-programmable gate array (Field-Programmable Gate Array, FPGA), and programmable logic array (Programmable Logic Array, PLA). implemented in hardware. The processor 710 may integrate one or a combination of a central processing unit (Central Processing Unit, CPU), a graphics processing unit (Graphics Processing Unit, GPU), a modem, and the like. Among them, the CPU mainly handles the operating system, user interface and application programs, etc.; the GPU is used for rendering and drawing of the display content; the modem is used to handle wireless communication. It can be understood that, the above-mentioned modem may not be integrated into the processor 710, and is implemented by a communication chip alone.

The memory 720 may include random access memory (Random Access Memory, RAM), or may include read-only memory (Read-Only Memory). Memory 720 may be used to store instructions, programs, codes, sets of codes, or sets of instructions. The memory 720 may include a stored program area and a stored data area, wherein the stored program area may store instructions for implementing an operating system, instructions for implementing at least one function (such as a touch function, a sound playback function, an image playback function, etc.) , instructions for implementing the foregoing method embodiments, and the like. The storage data area may also store data and the like created by the electronic device 700 in use.

It can be understood that the electronic device 700 may include more or less structural elements than those in the above-mentioned structural block diagram, for example, including a power supply, an input button, a camera, a speaker, a screen, an RF (Radio Frequency, radio frequency) circuit, Wi-Fi ( Wireless Fidelity, wireless fidelity) modules, Bluetooth modules, sensors, etc., may not be limited here.

The embodiment of the present application discloses a computer-readable storage medium, which stores a computer program, wherein, when the computer program is executed by a processor, the method described in the foregoing embodiments is implemented.

The embodiments of the present application disclose a computer program product, the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program can be executed by a processor to implement the methods described in the above embodiments.

Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be implemented by instructing relevant hardware through a computer program, and the program can be stored in a non-volatile computer-readable storage medium , when the program is executed, it may include the flow of the above-mentioned method embodiments. The storage medium may be a magnetic disk, an optical disk, a read-only memory (Read-Only Memory, ROM), or the like.

Any reference to a memory, storage, database or other medium as used herein may include non-volatile and/or volatile memory. Suitable nonvolatile memory may include read only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory may include random access memory (RAM), which acts as external cache memory. By way of illustration and not limitation, RAM is available in various forms such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous Link (Synchlink) DRAM (SLDRAM), Memory Bus (Rambus) Direct RAM (RDRAM), Direct Memory Bus Dynamic RAM (DRDRAM), and Memory Bus Dynamic RAM (RDRAM).

It is to be understood that reference throughout the specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic associated with the embodiment is included in at least one embodiment of the present application. Thus, appearances of "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily necessarily referring to the same embodiment. Furthermore, the specific features, structures or characteristics may be combined in any suitable manner in one or more embodiments. Those skilled in the art should also know that the embodiments described in the specification are all optional embodiments, and the actions and modules involved are not necessarily required by the present application.

In the various embodiments of the present application, it should be understood that the size of the sequence numbers of the above-mentioned processes does not imply an inevitable sequence of execution, and the execution sequence of each process should be determined by its functions and internal logic, and should not be implemented in the present application. The implementation of the examples constitutes no limitation.

The units described above as separate components may or may not be physically separated, and components displayed as units may or may not be object units, and may be located in one place or distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.

The above-mentioned integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer-accessible memory. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the whole or part of the technical solution, can be embodied in the form of a software product, and the computer software product is stored in a memory , including several requests to cause a computer device (which may be a personal computer, a server, or a network device, etc., specifically a processor in the computer device) to execute some or all of the steps of the above methods in the various embodiments of the present application.

The calibration method, device, electronic device and storage medium of a volume sensor disclosed in the embodiments of the present application have been described in detail above. The principles and implementations of the present application are described with specific examples in this article. Just to help understand the methodology of this application and its core idea. At the same time, for those skilled in the art, according to the idea of the present application, there will be changes in the specific embodiments and application scope. To sum up, the content of this specification should not be construed as a limitation to the present application.

Claims (10)

1. A calibration method of a gas sensor is characterized by comprising the following steps:

acquiring first opening data of planned openings, wherein the planned openings are smaller than actual openings of the gas sensor;

calibrating the gas sensor placed in a sample gas environment based on the first opening data;

and determining the hole plugging range which can be accepted by the gas sensor according to the first hole opening data and the preset positive and negative error range.

2. The method of claim 1, wherein said first aperture data comprises a first aperture area;

the acquiring of the first opening data of the planned opening includes:

determining a preset area difference value, wherein the area difference value is the difference value between a first opening area of planned opening and a second opening area of actual opening of the gas sensor;

and obtaining the first opening area according to the area difference value and the second opening area.

3. The method of claim 2, wherein the area difference is positively correlated with the error threshold of the positive and negative error ranges.

4. The method of claim 1, further comprising:

determining an effective hole range according to the second opening data of the actual opening and the hole blocking range, wherein the effective hole is the part except the hole blocking in the actual opening;

when the gas sensor is in a use state, detecting effective pore data of the actual open pore, wherein the effective pore data is used for representing the effective pore size of the actual open pore in the use process;

and when the effective hole data is not in the effective hole range, determining that the actual open hole is in an unavailable state.

5. The method of claim 1, further comprising:

when the gas sensor is in a use state, detecting hole blocking data of the actual opening, wherein the hole blocking data is used for representing the size of the hole blocking of the actual opening in the use process;

and when the hole blocking data is not in the hole blocking range, determining that the actual hole opening is in an unavailable state.

6. The method of claim 5, wherein said detecting the plugging data of the actual opening comprises:

acquiring the total use duration of the gas sensor;

and acquiring the hole plugging data corresponding to the total use duration according to the corresponding relation between the use duration and the hole plugging data.

7. The method according to claim 6, wherein the obtaining of the hole plugging data corresponding to the total usage duration according to the correspondence between the usage duration and the hole plugging data comprises:

acquiring gas environment parameters of the gas sensor;

determining the corresponding relation between the use duration and the hole plugging data according to the gas environment parameters;

and acquiring the hole plugging data corresponding to the total service time according to the determined corresponding relation.

8. A calibration device for a gas sensor is characterized by comprising:

the data acquisition module is used for acquiring first opening data of planned opening, wherein the planned opening is smaller than the actual opening of the gas sensor;

a calibration module for calibrating the gas sensor placed in a sample gas environment based on the first opening data;

and the hole plugging range determining module is used for determining the hole plugging range which can be accepted by the gas sensor according to the first opening data and the preset positive and negative error range.

9. An electronic device comprising a memory and a processor, the memory having stored therein a computer program that, when executed by the processor, causes the processor to carry out the method of any of claims 1 to 7.

10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the method according to any one of claims 1 to 7.

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