CN110646569A - Method and device for predicting service life of gas sensor and computing equipment - Google Patents
Method and device for predicting service life of gas sensor and computing equipment Download PDFInfo
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Abstract
The invention relates to the field of gas detectors, and provides a method, a device and computing equipment for predicting the service life of a gas sensor, so as to improve the accuracy of calculation of accumulated data. The method comprises the following steps: when the reminding time for calibrating the gas sensor is reached, an alarm signal is sent out to remind a user of calibrating the gas sensor; calculating the attenuation degree and/or attenuation speed of the current gas sensor at the reminding time when the gas sensor is calibrated; predicting the reminding time for calibrating the gas sensor at the next time according to the attenuation degree and/or the attenuation speed of the gas sensor; and repeating the calibration, calculation and prediction for each same type of gas sensor until the attenuation degree of each same type of gas sensor reaches a preset threshold value, and sending an alarm signal to remind a user to replace the gas sensor. The technical scheme provided by the invention reduces the labor cost and potential safety hazards in the production and manufacturing fields.
Description
Technical Field
The invention belongs to the field of gas detectors, and particularly relates to a method and a device for predicting the service life of a gas sensor and computing equipment.
Background
In the oil field, refining, chemical, pharmaceutical and food industries, raw materials can generate flammable and explosive gases during storage or processing. For safety reasons, it is necessary to install a combustible gas alarm for detecting the concentration of combustible gas in the air at the storage and processing sites of these raw materials. When the set alarm condition is reached, the combustible gas alarms can give out sound and light alarms to protect the safety of equipment and personnel.
The core of the combustible gas alarm is a gas sensor, and at present, the gas sensor with relatively high cost performance is a catalytic combustion type sensor. The catalytic combustion sensor has the advantages of good linearity, high reaction speed, mature process, moderate price and the like. However, a disadvantage of catalytic combustion sensors is that if compounds of silicon, sulfides, heavy metals or halogens are present in the environment, they gradually lose their sensitivity until they eventually fail. Therefore, it is an important daily task of the manufacturing industry to detect a gas sensor to determine whether it has failed.
At present, a method for detecting whether a catalytic combustion type sensor gas sensor fails is manual detection, namely, detection personnel perform detection once every a period of time. However, this manual detection method does not have predictability on the service life of the gas sensor, and once the time for detection is missed, a great safety hazard is brought.
Disclosure of Invention
The invention provides a method, a device and a computing device for predicting the service life of a gas sensor, which are used for accurately predicting the service life of the gas sensor and reducing potential safety hazards in the fields of production and manufacturing.
In a first aspect, the present invention provides a method of predicting the useful life of a gas sensor, the method comprising:
when the reminding time for calibrating the gas sensor is reached, an alarm signal is sent out to remind a user of calibrating the gas sensor;
calculating the attenuation degree and/or attenuation speed of the current gas sensor at the reminding time when the gas sensor is calibrated;
predicting the reminding time for calibrating the gas sensor at the next time according to the attenuation degree and/or the attenuation speed of the gas sensor;
and repeating the calibration, calculation and prediction for each gas sensor of the same type until the attenuation degree of each gas sensor of the same type reaches a preset threshold value, namely, when the service life of the gas sensor reaches the expiration limit, an alarm signal is sent out to remind a user to replace the gas sensor.
A second aspect of the present invention provides an apparatus for predicting a useful life of a gas sensor, the apparatus comprising:
the alarm module is used for sending an alarm signal to remind a user of calibrating the gas sensor when the reminding time for calibrating the gas sensor is reached;
the calculation module is used for calculating the attenuation degree and/or the attenuation speed of the current gas sensor at the reminding time when the gas sensor is calibrated;
the prediction module is used for predicting the reminding time when the gas sensor needs to be calibrated next time according to the attenuation degree and/or the attenuation speed of the current gas sensor at the reminding time when the gas sensor needs to be calibrated;
and aiming at each gas sensor of the same type, the alarm module, the calculation module and the prediction module sequentially repeat the calibration, calculation and prediction until the attenuation degree of each gas sensor of the same type reaches a preset threshold value, and an alarm signal is sent out to remind a user to replace the gas sensor.
A third aspect of the invention provides a computing device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, the processor implementing the steps of the method when executing the computer program:
when the reminding time for calibrating the gas sensor is reached, an alarm signal is sent out to remind a user of calibrating the gas sensor;
calculating the attenuation degree and/or attenuation speed of the current gas sensor at the reminding time when the gas sensor is calibrated;
predicting the reminding time for calibrating the gas sensor at the next time according to the attenuation degree and/or the attenuation speed of the gas sensor;
and repeating the calibration, calculation and prediction for each gas sensor of the same type until the attenuation degree of each gas sensor of the same type reaches a preset threshold value, namely, when the service life of the gas sensor reaches the expiration limit, an alarm signal is sent out to remind a user to replace the gas sensor.
A fourth aspect of embodiments of the present invention provides a computer-readable storage medium, in which a computer program is stored, the computer program, when executed by a processor, implementing the steps of the method:
when the reminding time for calibrating the gas sensor is reached, an alarm signal is sent out to remind a user of calibrating the gas sensor;
calculating the attenuation degree and/or attenuation speed of the current gas sensor at the reminding time when the gas sensor is calibrated;
predicting the reminding time for calibrating the gas sensor at the next time according to the attenuation degree and/or the attenuation speed of the gas sensor;
and repeating the calibration, calculation and prediction for each gas sensor of the same type until the attenuation degree of each gas sensor of the same type reaches a preset threshold value, namely, when the service life of the gas sensor reaches the expiration limit, an alarm signal is sent out to remind a user to replace the gas sensor.
According to the technical scheme provided by the invention, as the attenuation degree and/or the attenuation speed of the gas sensor can be accurately calculated, the reminding time for calibrating the gas sensor next time can be accurately predicted according to the attenuation degree and/or the attenuation speed of the gas sensor, and compared with the prior art, on one hand, the technical scheme provided by the invention can reduce the frequency of blind manual calibration, thereby reducing the labor cost; on the other hand, the reminding time is accurately predicted, so that the time for calibrating the gas sensor is not easy to miss, and the gas sensor and the attached products thereof with the service life about to expire are replaced in time, thereby reducing the potential safety hazard in the production and manufacturing fields.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic flow chart of an implementation of a method for predicting a service life of a gas sensor according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an implementation of a method for predicting a useful life of a gas sensor according to another embodiment of the present invention;
FIG. 3 is a graphical representation of a reaction decay curve of a gas sensor provided in accordance with an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of an apparatus for predicting a lifetime of a gas sensor according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a computing device according to an embodiment of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
In order to explain the technical means of the present invention, the following description will be given by way of specific examples.
Fig. 1 is a schematic flow chart of an implementation of the method for predicting the service life of the gas sensor according to the embodiment of the present invention, which mainly includes the following steps S101 to S103, and the following detailed description:
s101, when the reminding time for calibrating the gas sensor is reached, an alarm signal is sent out to remind a user of calibrating the gas sensor.
In the embodiment of the present invention, the reminding time when the gas sensor should be calibrated may be three times, that is: 1. for the same gas sensor, the reminding time can be the reminding time of initial calibration, the reminding time of the initial calibration is the time for reminding a user to calibrate the gas sensor for the first time after the gas sensor is put into use and set according to an industrial standard when the gas sensor is used for the first time, and the reminding time is the reminding time which is default in the industry; 2. for the same gas sensor, a predicted time at which the gas sensor should be calibrated is obtained through step S103; 3. for a gas sensor, the same type of gas sensor as the gas sensor undergoes steps S101 to S103, a reaction attenuation curve of the gas sensor is obtained, and a reminding time for initial calibration of the gas sensor is set according to the reaction attenuation curve of the gas sensor, and the set reminding time may not be the same as a reminding time for reminding a user of calibrating the gas sensor for the first time, that is, a default reminding time in the industry, which is set according to an industry standard and is set after the gas sensor is put into use.
As for the alarm signal, an audible and visual alarm signal may be used, for example, a specific color light is emitted by an indicator light, a sharp alarm is emitted, or a voice prompt is directly used, and the invention is not limited thereto.
S102, calculating the attenuation degree and/or the attenuation speed of the current gas sensor at the reminding time when the gas sensor is calibrated.
In an embodiment of the invention, the gas sensor may be a sensor such as a catalytic combustion sensor. As mentioned above, since the gas sensor is used in an environment where silicon compounds, sulfides, heavy metals or halogen elements exist, the gas sensor loses its sensitivity after being used for a certain period of time, i.e., the reaction of the sensor gradually declines. Thus, for any gas sensor, there is a measure of the degree of decay and the rate of decay as it occurs, such as the decay process described above. In the embodiment of the present invention, when the reminding time when the gas sensor should be calibrated arrives, the attenuation degree and/or the attenuation speed of the current gas sensor at this time can be calculated, wherein the attenuation degree of the gas sensor can be obtained by introducing a standard gas with a known concentration into the gas sensor every time the gas sensor is calibrated, and detecting the output signal intensity S of the gas sensor after the standard gas is introducedeThe initial output signal intensity S of the gas sensor is determineds(generally, the output signal intensity obtained at the time of factory test of the gas sensor) and the output signal intensity SeSubtracting the difference and then comparing the subtracted difference with the initial output signal strength S of the gas sensorsAnd determining the obtained ratio as the attenuation degree of the gas sensor at the current calibration time, wherein the attenuation speed of the gas sensor is obtained by subtracting the attenuation degree obtained by calculation at the time from the attenuation degree obtained by calculation at the last calibration time of the gas sensor each time the gas sensor is calibrated, and then dividing the obtained difference by the time between two times of calibration to obtain the attenuation speed of the gas sensor at the current calibration time of the gas sensor. For example, if the initial output signal intensity of the gas sensor is 2000mV, and the output signal intensity of the gas sensor is 1600mV when the user calibrates the gas sensor, the degree of attenuation of the gas sensor is 20% from 100% × (2000mV-1600mV)/2000mV by the time of this calibration, and the gas sensor is calibrated again after one monthWhen the calibration is performed and the detected output signal intensity is 1200mV, the attenuation degree of the gas sensor is 100% × (2000mV-1200mV)/2000mV is 40%, and the attenuation speed of the gas sensor is (40% -20%)/month is 20%/month until the calibration time.
And S103, predicting the reminding time for calibrating the gas sensor next time according to the attenuation degree and/or the attenuation speed of the gas sensor.
As an embodiment of the present invention, the time for predicting the reminding time when the gas sensor should be calibrated next time according to the attenuation degree and/or the attenuation speed of the gas sensor may be: calculating the time T when the attenuation degree of the current time and the gas sensor reaches a preset threshold value according to the attenuation degree and/or the attenuation speed of the current gas sensor; determining a time T formed by adding time T to the current time from the current timeeAny time in between is taken as the reminding time T for calibrating the gas sensor next timesWherein the preset threshold is the maximum attenuation that can be tolerated by the gas sensor, for example, 60% or other values, and specifically, the time T when the attenuation of the gas sensor reaches the preset threshold at the current moment is calculated according to the attenuation and/or the attenuation speed of the current gas sensor; determining a time T formed by adding time T to the current time from the current timeeAny time in between is taken as the reminding time T for calibrating the gas sensor next timesCan be as follows: calculating the time required when the attenuation degree reaches a fixed value every time according to the attenuation degree and/or the attenuation speed of the current gas sensor, and reminding once to calibrate the gas sensor when the time is reached; when the time T when the attenuation degree of the gas sensor at the current moment reaches a preset threshold value is calculated, the time from the current moment to the moment T can be predicted according to the time required when the attenuation degree reaches a fixed value every timeeAt a reminding time T at which the gas sensor should be calibrateds. For example, at the current time, the attenuation degree of the gas sensor is 20%, and the attenuation speed is 20%/month, and assuming that the preset threshold value is 60%, the attenuation of the gas sensor at the current time is measured from the current timeThe time when the degree reaches the preset threshold value is 2 months; further, assuming that the current time is 6 months and 1 day, and the time from the attenuation degree of the gas sensor to the time when the attenuation degree of the gas sensor reaches the preset threshold value is 61 days according to the attenuation degree and/or the attenuation speed of the current gas sensor, determining any time between 6 months and 1 days to 8 months as a reminding time for calibrating the gas sensor next time, for example, the time when the attenuation degree is increased by 5% can be predicted each time as the reminding time for calibrating the gas sensor, and if the attenuation speed is linearly performed, the gas sensor should be calibrated once every 7.5 days between 6 months and 1 days to 8 months; of course, 8/month 1/day or 7/month 31/day may be used as the reminding time when the gas sensor should be calibrated.
It should be noted that, although the decay rate of the gas sensor in the above example is linear, for the case that the decay rate of the gas sensor is not linear, the time T from the current time when the decay rate of the gas sensor reaches the preset threshold value can still be calculated according to the current decay rate and/or decay rate of the gas sensor.
For greater safety and considering the cost of manual detection, in one embodiment of the present invention, when the current calibration is performed, the gas sensor is attenuated more and/or more rapidly than the last calibration, and the reminding time when the gas sensor should be calibrated next time is relative to the reminding time TsIn advance, otherwise, the reminding time at which the gas sensor should be calibrated next time is relative to the reminding time TsHysteresis, clearly the reason for the advance is for safety considerations and the reason for the hysteresis is for the cost of reducing manual detection; as another embodiment of the present invention, if the attenuation degree and/or the attenuation speed of the gas sensor during the current calibration is larger and/or faster than the attenuation degree and/or the attenuation speed of the gas sensor during the last calibration, the alarm time T is setsPreviously, increasing the frequency of reminding the gas sensor to be calibrated, otherwise, decreasing the frequency of reminding the gas sensor to be calibrated, andsimilarly, the former embodiment increases the frequency of alarms for calibrating the gas sensor for safety reasons, and decreases the frequency of alarms for calibrating the gas sensor for cost reduction of manual testing. In other words, after calculating the attenuation degree and/or the attenuation speed of the current gas sensor at the time of the reminding time when the gas sensor should be calibrated, the reminding time when the gas sensor should be calibrated next time is changed at any time, and in principle, the larger the attenuation degree and/or the faster the attenuation speed of the gas sensor are, the reminding time when the gas sensor should be calibrated next time is relative to the reminding time TsThe more advanced the calibration is, the larger the frequency of reminding the gas sensor to be calibrated is, otherwise, the reminding time at which the gas sensor should be calibrated next time is relative to the reminding time TsThe more late, the more frequent the gas sensor is alerted to a calibration.
It should be noted that, for each of the gas sensors of the same type, the above calibration, calculation and prediction, i.e., steps S101 to S103, are repeated to be executed in a loop until the attenuation degree of each of the gas sensors of the same type reaches a preset threshold, i.e., when the service life of the gas sensor reaches the expiration, an alarm signal is sent to prompt the user to replace the gas sensor; the flowchart of the loop execution of steps S101 to S103 is shown in fig. 2.
After predicting the reminding time when the gas sensor should be calibrated and the attenuation degree of the gas sensor when the reminding time arrives, drawing a reaction attenuation curve of the gas sensor according to the reminding time when the gas sensor should be calibrated and the attenuation degree of the gas sensor when the reminding time arrives, as shown in the attached figure 3; and setting the reminding time of the initial calibration of the same type of gas sensor of the gas sensor according to the reaction attenuation curve of the gas sensor. As the reaction attenuation curves drawn by the same type of gas sensor are more and more, the service life of the type of gas sensor can be more and more accurately predicted.
As can be seen from the method for predicting the service life of the gas sensor illustrated in fig. 1, since the attenuation degree and/or the attenuation speed of the gas sensor can be accurately calculated, the reminding time for calibrating the gas sensor next time can be accurately predicted according to the attenuation degree and/or the attenuation speed of the gas sensor, and compared with the prior art, on the one hand, the technical scheme provided by the invention can reduce the frequency of blind manual calibration, thereby reducing the labor cost; on the other hand, the reminding time is accurately predicted, so that the time for calibrating the gas sensor is not easy to miss, and the gas sensor or the attached product thereof with the service life about to expire is replaced in time, thereby reducing the potential safety hazard in the production and manufacturing fields.
Fig. 4 is a schematic diagram of an apparatus for predicting a lifetime of a gas sensor according to an embodiment of the present invention. For convenience of description, only the portions related to the present invention are shown. The apparatus for predicting the service life of the gas sensor illustrated in fig. 4 mainly includes an alarm module 401, a calculation module 402 and a prediction module 403, which are described in detail as follows:
the alarm module 401 is configured to send an alarm signal to remind a user to calibrate the gas sensor when a reminding time at which the gas sensor should be calibrated arrives;
a calculating module 402, configured to calculate a degree of attenuation and/or a rate of attenuation of the current gas sensor at a time when the gas sensor should be calibrated;
the prediction module 403 is configured to predict a reminding time at which the gas sensor should be calibrated next time according to the attenuation degree and/or the attenuation speed of the current gas sensor at the reminding time when the gas sensor should be calibrated;
for each gas sensor of the same type, the alarm module 401, the calculation module 402 and the prediction module 403 all repeat the above calibration, calculation and prediction in sequence until the attenuation degree of each gas sensor of the same type reaches a preset threshold value, and then send out an alarm signal to remind a user to replace the gas sensor.
It should be noted that, since the apparatus for predicting the service life of a gas sensor provided in the embodiment of the present invention is based on the same concept as the method embodiment of the present invention, the technical effect thereof is the same as the method embodiment of the present invention, and specific contents may be referred to the description in the method embodiment of the present invention, and are not described herein again.
Optionally, the prediction module 403 illustrated in fig. 4 may include a time calculation unit and a determination unit, wherein:
the time calculation unit is used for calculating the time T when the attenuation degree of the current time and the gas sensor reaches a preset threshold value according to the attenuation degree and/or the attenuation speed of the current gas sensor;
a determination unit for determining the time T formed by the current time and the current time plus the time TeAny time in between is taken as the reminding time T for calibrating the gas sensor next times。
Optionally, the apparatus illustrated in fig. 4 may further include a reminding time adjusting module or a reminding frequency adjusting module, where: .
A reminding time adjusting module for adjusting the reminding time for the reminding time T when the gas sensor is to be calibrated next time if the attenuation degree and/or the attenuation speed of the gas sensor during the current calibration is larger than the attenuation degree and/or the attenuation speed of the gas sensor during the last calibrationsIn advance, otherwise, the reminding time at which the gas sensor should be calibrated next time is relative to the reminding time TsHysteresis;
a reminding frequency adjusting module for if the attenuation degree and/or the attenuation speed of the gas sensor during the current calibration is larger than the attenuation degree and/or the attenuation speed of the gas sensor during the last calibration, then reminding the time TsBefore, increase and carry out the warning frequency of calibrating to gas sensor, otherwise, reduce and carry out the warning frequency of calibrating to gas sensor.
Optionally, the apparatus illustrated in fig. 4 may further include a curve drawing module and a setting reminding module, wherein:
the curve drawing module is used for drawing a reaction attenuation curve of the gas sensor according to the reminding time when the gas sensor needs to be calibrated and the attenuation degree of the gas sensor when the reminding time arrives;
and the reminding module is arranged and used for setting the reminding time of the primary calibration of the same type of gas sensor of the gas sensor according to the reaction attenuation curve of the gas sensor.
Fig. 5 is a schematic structural diagram of a computing device according to an embodiment of the present invention. As shown in fig. 5, the computing device 5 of this embodiment mainly includes: a processor 50, a memory 51 and a computer program 52 stored in the memory 51 and executable on the processor 50, such as a program for a method of predicting a useful life of a gas sensor. The steps in the above-described method embodiment of predicting the useful life of a gas sensor, such as steps S101 to S103 shown in fig. 1, are implemented when the processor 50 executes the computer program 52. Alternatively, the processor 50, when executing the computer program 52, implements the functions of the modules/units in the above-described device embodiments, such as the functions of the alarm module 401, the calculation module 402 and the prediction module 403 shown in fig. 4.
Illustratively, the computer program 52 of the method of predicting the useful life of a gas sensor consists essentially of: when the reminding time for calibrating the gas sensor is reached, an alarm signal is sent out to remind a user of calibrating the gas sensor; calculating the attenuation degree and/or attenuation speed of the current gas sensor at the reminding time when the gas sensor is calibrated; predicting the reminding time for calibrating the gas sensor at the next time according to the attenuation degree and/or the attenuation speed of the gas sensor; and repeating the calibration, calculation and prediction for each gas sensor of the same type until the attenuation degree of each gas sensor of the same type reaches a preset threshold value, namely, when the service life of the gas sensor reaches the expiration limit, an alarm signal is sent out to remind a user to replace the gas sensor. The computer program 52 may be divided into one or more modules/units, which are stored in the memory 51 and executed by the processor 50 to accomplish the present invention. One or more modules/units may be a series of computer program instruction segments capable of performing specific functions that describe the execution of computer program 52 in computing device 5. For example, the computer program 52 may be divided into functions of an alarm module 401, a calculation module 402, and a prediction module 403 (modules in a virtual device), each of which has the following specific functions: the alarm module 401 is configured to send an alarm signal to remind a user to calibrate the gas sensor when a reminding time at which the gas sensor should be calibrated arrives; a calculating module 402, configured to calculate a degree of attenuation and/or a rate of attenuation of the current gas sensor at a time when the gas sensor should be calibrated; the prediction module 403 is configured to predict a reminding time at which the gas sensor should be calibrated next time according to the attenuation degree and/or the attenuation speed of the current gas sensor at the reminding time when the gas sensor should be calibrated; for each gas sensor of the same type, the alarm module 401, the calculation module 402 and the prediction module 403 all repeat the above calibration, calculation and prediction in sequence until the attenuation degree of each gas sensor of the same type reaches a preset threshold value, and then send out an alarm signal to remind a user to replace the gas sensor.
The Processor 50 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules, so as to perform all or part of the functions described above. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the embodiments provided by the present invention, it should be understood that the disclosed apparatus/computing device and method may be implemented in other ways. For example, the above-described apparatus/computing device embodiments are merely illustrative, and for example, a division of modules or units is merely a logical division, and an actual implementation may have another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
Units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated modules/units, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, all or part of the processes in the method of the embodiments of the present invention may be implemented by instructing related hardware through a computer program, and the computer program of the method for predicting the service life of the gas sensor may be stored in a computer readable storage medium, and when being executed by a processor, the computer program may implement the steps of the embodiments of the methods, that is, when a reminding time when the gas sensor should be calibrated arrives, an alarm signal is sent to remind a user to calibrate the gas sensor; calculating the attenuation degree and/or attenuation speed of the current gas sensor at the reminding time when the gas sensor is calibrated; predicting the reminding time for calibrating the gas sensor at the next time according to the attenuation degree and/or the attenuation speed of the gas sensor; and repeating the calibration, calculation and prediction for each gas sensor of the same type until the attenuation degree of each gas sensor of the same type reaches a preset threshold value, namely, when the service life of the gas sensor reaches the expiration limit, an alarm signal is sent out to remind a user to replace the gas sensor. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer readable medium may include: any entity or device capable of carrying computer program code, recording medium, U.S. disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution media, and the like. It should be noted that the computer readable medium may contain other components which may be suitably increased or decreased as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, in accordance with legislation and patent practice, the computer readable medium does not include electrical carrier signals and telecommunications signals. The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (10)
1. A method of predicting a gas sensor service life, the method comprising:
when the reminding time for calibrating the gas sensor is reached, sending an alarm signal to remind a user of calibrating the gas sensor;
calculating the attenuation degree and/or the attenuation speed of the current gas sensor at the reminding time when the gas sensor is to be calibrated;
predicting the reminding time at which the gas sensor needs to be calibrated next time according to the attenuation degree and/or the attenuation speed of the gas sensor;
and repeating the calibration, calculation and prediction for each gas sensor of the same type until the attenuation degree of each gas sensor of the same type reaches a preset threshold value, and sending an alarm signal to remind a user to replace the gas sensor.
2. The method for predicting the service life of the gas sensor according to claim 1, wherein the predicting the reminding time when the gas sensor should be calibrated next time according to the attenuation degree and/or the attenuation speed of the gas sensor comprises the following steps:
calculating the time T when the attenuation degree of the gas sensor at the current moment reaches the preset threshold value according to the attenuation degree and/or the attenuation speed of the gas sensor at the current moment;
determining the time T formed by the current time and the current time plus the time TeAny time in between as the reminding time T for calibrating the gas sensor next times。
3. The method of predicting a gas sensor service life of claim 2, further comprising:
if the attenuation degree and/or the attenuation speed of the gas sensor during the current calibration is larger and/or faster than the attenuation degree and/or the attenuation speed of the gas sensor during the last calibration, the reminding time when the gas sensor should be calibrated next time is relative to the reminding time TsAhead of time, otherwise, the gas sensor should be addressed next timeThe calibrated reminding time is relative to the reminding time TsHysteresis.
4. The method of predicting a gas sensor service life of claim 2, further comprising:
if the attenuation degree and/or the attenuation speed of the gas sensor during the current calibration is larger and/or faster than the attenuation degree and/or the attenuation speed of the gas sensor during the last calibration, the reminding time T is setsBefore, the reminding frequency for calibrating the gas sensor is increased, otherwise, the reminding frequency for calibrating the gas sensor is reduced.
5. The method of predicting gas sensor service life of any of claims 1 to 4, further comprising:
drawing a reaction attenuation curve of the gas sensor according to a reminding time when the gas sensor is to be calibrated and the attenuation degree of the gas sensor when the reminding time is up;
and setting the reminding time of the initial calibration of the same type of gas sensor of the gas sensor according to the reaction attenuation curve of the gas sensor.
6. An apparatus for predicting a useful life of a gas sensor, the apparatus comprising:
the alarm module is used for sending an alarm signal to remind a user of calibrating the gas sensor when the reminding time for calibrating the gas sensor is reached;
the calculation module is used for calculating the attenuation degree and/or the attenuation speed of the current gas sensor at the reminding time when the gas sensor is to be calibrated;
the prediction module is used for predicting the reminding time when the gas sensor needs to be calibrated next time according to the attenuation degree and/or the attenuation speed of the gas sensor;
and aiming at each gas sensor of the same type, the alarm module, the calculation module and the prediction module sequentially repeat the calibration, calculation and prediction until the attenuation degree of each gas sensor of the same type reaches a preset threshold value, and an alarm signal is sent to remind a user to replace the gas sensor.
7. The apparatus for predicting a gas sensor service life of claim 6, wherein the prediction module comprises:
the time calculation unit is used for calculating the time T when the attenuation degree of the gas sensor at the current moment reaches the preset threshold value according to the attenuation degree and/or the attenuation speed of the gas sensor at the current moment;
a determining unit for determining the time T formed by the current time and the current time plus the time TeAny time in between as the reminding time T for calibrating the gas sensor next times。
8. The apparatus for predicting a useful life of a gas sensor as recited in claim 7, further comprising:
a reminding time adjusting module, configured to, if the attenuation degree and/or the attenuation speed of the gas sensor during current calibration is greater than and/or faster than the attenuation degree and/or the attenuation speed of the gas sensor during last calibration, compare a reminding time at which the gas sensor should be calibrated next time with the reminding time TsAdvancing, otherwise, a reminding time at which the gas sensor should be calibrated next time is relative to the reminding time TsHysteresis; or
A reminding frequency adjusting module for setting the reminding time T if the attenuation degree and/or the attenuation speed of the gas sensor during the current calibration is larger than the attenuation degree and/or the attenuation speed of the gas sensor during the last calibrationsBefore, the reminding frequency for calibrating the gas sensor is increased, otherwise, the reminding frequency for calibrating the gas sensor is reduced.
9. A computing device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor implements the steps of the method according to any one of claims 1 to 6 when executing the computer program.
10. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 6.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111311883A (en) * | 2020-05-12 | 2020-06-19 | 成都千嘉科技有限公司 | Gas alarm replacement early warning method and device and electronic equipment |
| CN114813887A (en) * | 2022-05-09 | 2022-07-29 | 河南驰诚电气股份有限公司 | Electrochemical gas sensor module and service life prediction method thereof |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0476799A (en) * | 1990-07-19 | 1992-03-11 | Yamatake Honeywell Co Ltd | Device for deciding and forecasting service life of thermocouple temperature sensor |
| CN101464216A (en) * | 2007-12-19 | 2009-06-24 | Avl里斯脱有限公司 | Method and device for assessing the remaining lifespan of a sensor unit |
| CN101666769A (en) * | 2009-10-12 | 2010-03-10 | 无锡格林通安全装备有限公司 | Intelligent gas sensor residual service life prediction device and method |
| JP2012098534A (en) * | 2010-11-02 | 2012-05-24 | Ricoh Co Ltd | Method for predicting service life of readout sensor, and image forming apparatus |
| CN103519803A (en) * | 2012-06-28 | 2014-01-22 | 通用电气公司 | Method for monitoring sensor degradation and patient monitor |
| JP2015094616A (en) * | 2013-11-11 | 2015-05-18 | 理研計器株式会社 | Gas sensor use life prediction method and gas detection device |
| DE10309422B4 (en) * | 2003-03-05 | 2016-09-29 | Volkswagen Ag | Method and device for calibrating a NOx sensor |
| CN106324179A (en) * | 2016-08-30 | 2017-01-11 | 威海市乐家电子科技有限公司 | Automatic calibration method for catalytic combustion sensor |
| CN106872650A (en) * | 2017-03-08 | 2017-06-20 | 国睿集团有限公司 | A kind of gas concentration lwevel calibration correction device and calibration correction method |
| US20170261491A1 (en) * | 2013-01-03 | 2017-09-14 | Dexcom, Inc. | End of life detection for analyte sensors |
| CN109740191A (en) * | 2018-12-12 | 2019-05-10 | 北京佳讯飞鸿电气股份有限公司 | Prediction technique, device and the equipment of wind sensor remaining life |
-
2019
- 2019-10-17 CN CN201910997439.9A patent/CN110646569A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0476799A (en) * | 1990-07-19 | 1992-03-11 | Yamatake Honeywell Co Ltd | Device for deciding and forecasting service life of thermocouple temperature sensor |
| DE10309422B4 (en) * | 2003-03-05 | 2016-09-29 | Volkswagen Ag | Method and device for calibrating a NOx sensor |
| CN101464216A (en) * | 2007-12-19 | 2009-06-24 | Avl里斯脱有限公司 | Method and device for assessing the remaining lifespan of a sensor unit |
| CN101666769A (en) * | 2009-10-12 | 2010-03-10 | 无锡格林通安全装备有限公司 | Intelligent gas sensor residual service life prediction device and method |
| JP2012098534A (en) * | 2010-11-02 | 2012-05-24 | Ricoh Co Ltd | Method for predicting service life of readout sensor, and image forming apparatus |
| CN103519803A (en) * | 2012-06-28 | 2014-01-22 | 通用电气公司 | Method for monitoring sensor degradation and patient monitor |
| US20170261491A1 (en) * | 2013-01-03 | 2017-09-14 | Dexcom, Inc. | End of life detection for analyte sensors |
| JP2015094616A (en) * | 2013-11-11 | 2015-05-18 | 理研計器株式会社 | Gas sensor use life prediction method and gas detection device |
| CN106324179A (en) * | 2016-08-30 | 2017-01-11 | 威海市乐家电子科技有限公司 | Automatic calibration method for catalytic combustion sensor |
| CN106872650A (en) * | 2017-03-08 | 2017-06-20 | 国睿集团有限公司 | A kind of gas concentration lwevel calibration correction device and calibration correction method |
| CN109740191A (en) * | 2018-12-12 | 2019-05-10 | 北京佳讯飞鸿电气股份有限公司 | Prediction technique, device and the equipment of wind sensor remaining life |
Non-Patent Citations (1)
| Title |
|---|
| 童敏明著: "《催化传感器的研究与应用技术》", 30 November 2002, 徐州：中国矿业大学出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111311883A (en) * | 2020-05-12 | 2020-06-19 | 成都千嘉科技有限公司 | Gas alarm replacement early warning method and device and electronic equipment |
| CN114813887A (en) * | 2022-05-09 | 2022-07-29 | 河南驰诚电气股份有限公司 | Electrochemical gas sensor module and service life prediction method thereof |
| CN114813887B (en) * | 2022-05-09 | 2022-11-15 | 河南驰诚电气股份有限公司 | Electrochemical gas sensor module and service life prediction method thereof |
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