CN115980282A - Sensitivity calibration method and device for gas odorous agent concentration measurement sensor - Google Patents
Sensitivity calibration method and device for gas odorous agent concentration measurement sensor Download PDFInfo
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Abstract
The application provides a sensitivity calibration method and a device of a gas odorous agent concentration measurement sensor, wherein the device comprises the following steps: the device comprises: the device comprises a control module, an external sensor module, an electromagnetic valve module, a fuel gas odor agent storage device, an internal sensor module and an alarm module; and the control module is respectively connected with the external sensor, the internal sensor module and the electromagnetic valve module. According to the invention, the sensitivity calibration device composed of the control module, the external sensor module, the electromagnetic valve module, the fuel gas odorous agent storage device, the internal sensor module and the alarm module is combined with the use method of the sensitivity calibration device, so that the sensitivity of the sensor can be calibrated at regular time, the accuracy of the sensitivity of the sensor is ensured, the operation of a gas source station is further ensured, and meanwhile, the misjudgment problem caused by the failure of the odorous agent storage device can be combined by acquiring contrast data through the two sensor modules.
Description
Technical Field
The application relates to the field of measurement of the concentration of a gas odorous agent, in particular to a method and a device for calibrating the sensitivity of a gas odorous agent concentration measurement sensor.
Background
At present, a gas odorous agent concentration measuring sensor is required to periodically measure the concentration of a gas odorous agent in a gas source station so as to monitor the dynamic change of the concentration of the gas odorous agent, and ensure that the gas source station can normally provide gas services.
However, as the number of times of measurement increases, the sensitivity of the gas odorous agent concentration measurement sensor decreases, so that the gas odorous agent concentration measurement sensor cannot measure the actual concentration of the gas odorous agent, and further the gas source station cannot provide gas services normally.
In order to solve the problems, a method and a device for calibrating the sensitivity of a gas odorous agent concentration measuring sensor are provided.
Disclosure of Invention
The embodiment of the application provides a sensitivity calibration method and device of a gas odorous agent concentration measurement sensor, and the problem that the sensitivity of the gas odorous agent concentration measurement sensor is out of order due to service life can be solved, so that the gas odorous agent concentration can be more accurately detected by a guarantee device, and the gas supply station can be guaranteed to normally provide gas services.
In order to achieve the purpose, the technical scheme is as follows:
in a first aspect, an embodiment of the present application provides a sensitivity calibration device for a gas odorant concentration measurement sensor, where the device includes: the device comprises a control module, an external sensor module, an electromagnetic valve module, a fuel gas odor agent storage device, an internal sensor module and an alarm module;
the control module is respectively connected with the external sensor, the internal sensor module and the electromagnetic valve module, and is used for periodically sending a control instruction to the electromagnetic valve, receiving information collected by the external sensor module and the internal sensor module, and comprehensively processing and calibrating the information;
the external sensor module is used for acquiring the current concentration value of the environment;
the built-in sensor module is arranged at the exhaust end of the electromagnetic valve module and used for collecting concentration value information released by the gas odorous agent storage device;
the electromagnetic valve module is used for receiving the instruction information of the control module and opening or closing a valve;
the gas odorous agent storage device is used for storing gas odorous agents with calibrated concentrations;
and the alarm module is connected with the control module and used for giving an alarm.
As a preferred embodiment of the sensitivity calibration device of the gas odorant concentration measurement sensor according to the present invention, the control module is a programmable PLC controller.
As a preferable embodiment of the sensitivity calibration device of the gas odorant concentration measurement sensor according to the present invention, the control module comprises:
the transceiver submodule is used for receiving and transmitting information;
the calibration operation module is used for receiving the information received by the information transceiver submodule, outputting a control instruction through the transceiver submodule and processing the information; calculating a calibration coefficient, and correcting a sensitivity threshold value according to the calibration coefficient;
a clock module for providing a time reference;
and the storage submodule is used for receiving and storing the data output by the calibration operation module through the transceiver submodule.
As a preferred embodiment of the sensitivity calibration device for the gas odorant concentration measurement sensor according to the present invention, the external sensor and the internal sensor are both gas-sensitive electrochemical sensors, and the specifications and models of the internal sensor and the external sensor are consistent.
As a preferable embodiment of the sensitivity calibration device for a gas odorant concentration measurement sensor according to the present invention, the device further comprises a check valve disposed between the solenoid valve module and the external sensor, and a flow direction of the check valve is from the solenoid valve module to the external sensor.
The sensitivity calibration device of the gas odorant concentration measurement sensor further comprises a cleaning fan module, wherein the cleaning fan module is respectively connected with the internal sensor module and the external sensor module and used for cleaning the sensor.
In a second aspect, embodiments of the present application further provide a method for calibrating sensitivity of a gas odorant concentration measurement sensor, the method including:
s100, initial data acquisition, namely, initializing preset information when the device is started, and acquiring a concentration value of a current odorous agent storage device of a gas odorous agent concentration measurement sensor and an environment concentration value as initial reference data;
s200, collecting calibration data, and acquiring a concentration value of a current odorous agent storage device of a gas odorous agent concentration measurement sensor and environmental concentration value information at intervals as comparison data;
s300, processing the calibration data acquired in the calibration data acquisition step by combining the initial reference data acquired by the primary data acquisition step to obtain a concentration calibration coefficient;
s400, correcting the sensitivity of the gas odorous agent concentration measuring sensor according to the concentration calibration coefficient.
As a preferred embodiment of the method for calibrating the sensitivity of the gas odorant concentration measurement sensor according to the present invention, the step S100 of preliminary data acquisition, initializing preset information at the start of the device, and acquiring a current odorant storage device concentration value and an environmental concentration value of the gas odorant concentration measurement sensor as initial reference data includes:
presetting an attenuation threshold value of a calibration gas odorous agent storage device and fluctuation coefficients of an internal sensor and an external sensor, and then sending a control instruction to a calibration electromagnetic valve module by a control module; and the electromagnetic valve module receives a control instruction to be opened, the gas odorous agent is released, and at the moment, the built-in sensor and the external sensor carry out measurement to obtain the current concentration value acquired by the gas odorous agent concentration measurement sensor.
As a preferred embodiment of the method for calibrating the sensitivity of the gas odorant concentration sensor according to the present invention, in the step S200 of calibrating data acquisition, the built-in sensor module is cleaned by the blower module after each measurement, and the built-in sensor module is kept relatively closed after cleaning.
As a preferred embodiment of the method for calibrating the sensitivity of a gas odorant concentration sensor according to the present invention, the step S300 of processing the calibration data collected in the calibration data collection step in combination with the initial reference data of the preliminary data collection to obtain the concentration calibration coefficient includes:
firstly, calculating the difference value of the internal concentration values of two times by using the external concentration value and the internal concentration value acquired for the second time and the external concentration coefficient and the internal concentration value acquired for the first time so as to determine whether the attenuation of the gas odorous agent storage device is within a set attenuation threshold value; determining a difference value between the first external concentration and the internal concentration, calculating two difference values to obtain a fluctuation coefficient, and determining whether the fluctuation coefficient is within the fluctuation coefficient range of the internal and external sensors;
if the attenuation is within the threshold range and the fluctuation coefficient is normal, calculating the concentration calibration coefficient which is the ratio of the external concentration value to the internal concentration value, carrying out the next step, otherwise, stopping correction, alarming and warning faults;
and then, the final threshold value can be corrected by multiplying the concentration calibration coefficient by a preset alarm threshold value.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, the sensitivity calibration device composed of the control module, the external sensor module, the electromagnetic valve module, the fuel gas odorous agent storage device, the internal sensor module and the alarm module is combined with the use method of the sensitivity calibration device, so that the sensitivity of the sensor can be calibrated at regular time, the accuracy of the sensitivity of the sensor is ensured, the operation of a gas source station is further ensured, meanwhile, the two sensor modules are used for collecting comparison data, the misjudgment problem caused by the failure of the odorous agent storage device can be combined, and the relatively independent design of the internal sensor can provide effective reference to reduce the use loss of the internal sensor.
Drawings
Fig. 1 is a first schematic diagram of a sensitivity calibration apparatus of a gas odorant concentration measurement sensor according to an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a control module of a sensitivity calibration apparatus for a gas odorant concentration measurement sensor according to an embodiment of the present application;
FIG. 3 is a schematic diagram of a second configuration of a sensitivity calibration apparatus for a gas odorant concentration measurement sensor according to an embodiment of the present application;
FIG. 4 is a third schematic diagram of an architecture of a sensitivity calibration apparatus for a gas odorant concentration measurement sensor according to an embodiment of the present application;
fig. 5 is a flowchart of a sensitivity calibration method for a gas odorant concentration measurement sensor according to an embodiment of the present application.
Detailed Description
The technical solution in the present application will be described below with reference to the accompanying drawings.
Referring to fig. 1, the present application provides a sensitivity calibration apparatus for a gas odorant concentration measurement sensor, the apparatus including: the device comprises a control module 100, an external sensor module 200, an electromagnetic valve module 300, a gas odorous agent storage device 400, an internal sensor module 500 and an alarm module 600;
in this embodiment, the control module 100 is connected to the external sensor, the internal sensor module 500 and the electromagnetic valve module 300, and the control module 100 is configured to periodically send a control instruction to the electromagnetic valve, receive information collected by the external sensor module 200 and the internal sensor module 500, and perform comprehensive processing and calibration on the information;
the external sensor module 200 is used for acquiring a current concentration value of an environment, and the external sensor is connected with an external gas source station for practical application and a pressure reducing valve is arranged between the external sensor and the gas source station;
the device comprises an internal sensor module 500, wherein the internal sensor module 500 is arranged at the exhaust end of the electromagnetic valve module 300 and is used for collecting concentration value information released by a gas odorous agent storage device, the external sensor and the internal sensor are gas-sensitive electrochemical sensors, the specifications and the models of the internal sensor and the external sensor are consistent, the device is convenient to maintain and repair, and the internal sensor is arranged in a relatively closed environment to avoid detection capacity attenuation caused by contact with an external environment; the external sensor and the internal sensor are both gas-sensitive electrochemical sensors, and the specifications and the models of the internal sensor and the external sensor are consistent;
the solenoid valve module 300, the solenoid valve module 300 is used for receiving the instruction information of the control module 100 and opening or closing a valve;
a gas odorous agent storage means 400, said gas odorous agent storage means 400 for storing a gas odorous agent at a calibrated concentration;
and the alarm module 600, wherein the alarm module 600 is connected with the control module 100 and is used for giving an alarm.
The operation flow of the sensitivity calibration device for the odorant concentration measurement sensor will be described in detail below.
The control module 100 is provided with a program for periodically activating the solenoid valve module 300, wherein the period time can be selected according to actual conditions, such as setting to 1 day, 1 week, 1 month, etc. Thus, the control module 100 may send a control command to the solenoid valve module 300 every first preset time interval;
the electromagnetic valve module 300 is a normally closed electromagnetic valve, when the electromagnetic valve module 300 receives a control instruction of the control module 100, the electromagnetic valve module 300 is opened, the gas odorous agent is released by the gas odorous agent storage device 400 at the moment, and the odorous agent can sequentially pass through the internal sensor and the external sensor at the moment, wherein the electromagnetic valve module 300 is automatically closed after being opened for a certain time, and the arrangement simplifies the control logic and facilitates the control implementation;
in this embodiment, when the odor agent sequentially passes through the internal sensor and the external sensor, both the internal sensor and the external sensor acquire a concentration value, and then the two concentration values are uploaded to the control module 100;
the control module 100 is internally provided with concentration information, the concentration information is received to compare, analyze and judge whether the information concentration is within a normal threshold, if the information is within the threshold, a correction parameter is calculated according to the information to correct, if the information is outside the threshold, an early warning instruction message is sent to the alarm module 600, and by simultaneously collecting parameter information of two points, the error caused by the fault of an external sensor is prevented from influencing data difference, and the mode can also effectively prevent the odor agent from being used for a long time and reducing the concentration to cause the measurement error;
after the early warning module receives the instruction information, the early warning module carries out early warning and reminds workers to overhaul, and the early warning module can give out light to alarm and sound alarm lamp modes in actual alarm, and the alarm mode is determined according to actual conditions.
Referring to fig. 2, the control module 100 is described in detail below, the control module 100 is a programmable PLC controller,
the control module 100 includes:
a transceiver sub-module 101, wherein the transceiver sub-module 101 is used for receiving and transmitting information. For example, the transceiver sub-module 101 may be configured to receive information sent by an internal sensor and an external sensor, receive instruction information sent by the calibration operation module 102, and correspondingly send the information to the solenoid valve module 300 and the warning module for information transmission.
Optionally, the transceiver sub-module 101 may include a receiver and a transmitter (not separately shown in the figure). Wherein the receiver is configured to implement a receive function and the transmitter is configured to implement a transmit function.
Optionally, the transceiver sub-module 101 may be integrated with the calibration operation module 102, or may exist independently, which is not specifically limited in this embodiment of the present application.
It should be noted that the structure of the transceiver module shown in the figures does not constitute a limitation of the communication device, and an actual communication device may comprise more or less components than those shown, or some components may be combined, or a different arrangement of components.
A calibration operation module 102, where the calibration operation module 102 is configured to receive information received by the information transceiver sub-module 101, output a control instruction through the transceiver sub-module 101, process the information, calculate a calibration coefficient, and correct the sensitivity threshold according to the calibration coefficient, and the calibration operation module 102 is a control center of the control module 100, and may be a processor or a general name of multiple processing elements. For example, the calibration operation module 102 is one or more Central Processing Units (CPUs), or may be an Application Specific Integrated Circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present application, such as: one or more microprocessors (digital signal processors), or one or more Field Programmable Gate Arrays (FPGAs), and the calibration algorithm module 102 may perform the sensitivity calibration operation of the combustible odorant concentration measurement sensor by running or executing a software program stored in the storage submodule 104, and calling data stored in the storage submodule 104;
the clock module 103 is used for providing time reference, the clock module 103 mainly provides clock services, such as DS12B887 and the like, a user can set and read a timing register value therein, some batteries are provided or not provided, the user can normally and automatically time after setting, the user needs to access the register therein to obtain the current time, and the year, month, day, hour, minute and second values of the current time, generally, the user can output clock pulses in a second period;
a storage sub-module 104, where the storage sub-module 104 is configured to receive and store the data output by the calibration operation module 102 through the transceiver sub-module 101, and the storage sub-module 104 may be a read-only memory (ROM) or another type of static storage device that can store static information and instructions, a Random Access Memory (RAM) or another type of dynamic storage device that can store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a read-only optical disk (CD-ROM) or another optical disk storage, an optical disk storage (including a compact disk, a laser disk, a digital versatile disk, a blu-ray disk, etc.), a magnetic disk storage medium or another magnetic storage device, or any other medium that can be used to carry or store a desired code in the form of instructions or data structures and that can be accessed by a computer, but is not limited to this. The storage submodule 104 may be integrated with the quasi-operation module, or may exist independently, where the storage submodule 104 is internally provided with a program for executing data transmission and executing the sensitivity calibration operation method, and this is not specifically limited in this embodiment of the present application;
referring to fig. 3, the device further includes a check valve 700 disposed between the solenoid valve module 300 and the external sensor, a flow direction of the check valve 700 is from the solenoid valve module 300 to the external sensor, and the check valve 700 is disposed to ensure that the odor agent can be normally sent to the external sensor, and at the same time, ensure that the internal sensor is relatively independent, which is beneficial to reducing contact between the internal sensor and the outside and reducing loss of the internal sensor;
further, please refer to fig. 4, the sensor cleaning system further includes a cleaning fan module 800, the cleaning fan module 800 is respectively connected to the internal sensor module 500 and the external sensor module 200, and is configured to clean the sensor, the cleaning fan module 800 is connected to the control module 100, after the cleaning fan module 800 detects the concentration of the odor agent, the control module 100 drives the fan to automatically supply air to the sensor, and the odor agent at the sensor is cleaned in time, which is beneficial to realizing automatic cleaning guarantee and prolonging the service life of the device, wherein a tunable electric valve is further disposed at a connection portion between the cleaning fan module 800 and the sensor, and the valve is used for guaranteeing that the environment of the internal sensor is relatively sealed after cleaning.
Referring to fig. 5, an embodiment of the present application further provides a method for calibrating sensitivity of a gas odorant concentration measurement sensor, where the method includes:
s100, initial data acquisition, namely, initializing preset information when the device is started, and acquiring a concentration value of a current odorous agent storage device of a gas odorous agent concentration measurement sensor and an environment concentration value as initial reference data;
s200, collecting calibration data, and acquiring a concentration value of a current odorous agent storage device of a gas odorous agent concentration measurement sensor and environmental concentration value information at intervals to serve as comparison data;
s300, processing the calibration data acquired in the calibration data acquisition step by combining initial reference data acquired by the initial data acquisition step to obtain a concentration calibration coefficient;
s400, correcting the sensitivity of the gas odorous agent concentration measuring sensor according to the concentration calibration coefficient.
Optionally, the preliminary data acquisition of step S100 is started at the device and is initialized to preset information, obtains current odor agent storage device concentration value and environment concentration value of gas odor agent concentration measurement sensor, as initial reference data, includes:
presetting an attenuation threshold value and fluctuation coefficients of an internal sensor and an external sensor of a calibration gas odorous agent storage device, and then sending a control instruction to a calibration electromagnetic valve module by a control module; and the electromagnetic valve module receives a control instruction to be opened, the gas odorous agent is released, and at the moment, the built-in sensor and the external sensor carry out measurement to obtain the current concentration value acquired by the gas odorous agent concentration measurement sensor.
Optionally, in the step S200 of acquiring calibration data, the built-in sensor module is cleaned by the blower module after each measurement, and the built-in sensor module is kept relatively closed after cleaning.
Optionally, the step S300 of processing the calibration data acquired in the calibration data acquisition step in combination with the initial reference data acquired by the preliminary data acquisition to obtain the concentration calibration coefficient includes:
firstly, calculating the difference value of the internal concentration of the two times by using the external concentration value and the internal concentration value acquired for the second time and the external concentration coefficient and the internal concentration value acquired for the first time so as to determine whether the attenuation of the gas odorous agent storage device is within a set attenuation threshold value; determining a difference value between the first external concentration and the internal concentration, calculating two difference values to obtain a fluctuation coefficient, and determining whether the fluctuation coefficient is within the fluctuation coefficient range of the internal and external sensors;
if the attenuation is within the threshold range and the fluctuation coefficient is normal, calculating the concentration calibration coefficient which is the ratio of the external concentration value to the internal concentration value, carrying out the next step, otherwise, stopping correction, alarming and warning faults;
and then, the final threshold value can be corrected by multiplying the concentration calibration coefficient by the preset alarm threshold value.
It should be understood that the processor in the embodiments of the present application may be a Central Processing Unit (CPU), and the processor may also be other general purpose processors, digital Signal Processors (DSPs), application Specific Integrated Circuits (ASICs), field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
It will also be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. Volatile memory can be Random Access Memory (RAM), which acts as external cache memory. By way of example, but not limitation, many forms of Random Access Memory (RAM) are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchlink DRAM (SLDRAM), and direct bus RAM (DR RAM).
The above embodiments may be implemented in whole or in part by software, hardware (e.g., circuitry), firmware, or any combination thereof. When implemented in software, the above-described embodiments may be implemented in whole or in part in the form of a computer program product. The computer program product comprises one or more computer instructions or computer programs. The procedures or functions according to the embodiments of the present application are wholly or partially generated when the computer instructions or the computer program are loaded or executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, data center, etc., that contains one or more collections of available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium. The semiconductor medium may be a solid state disk.
It should be understood that the term "and/or" herein is merely one type of association relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone, wherein A and B can be singular or plural. In addition, the "/" in this document generally indicates that the former and latter associated objects are in an "or" relationship, but may also indicate an "and/or" relationship, which may be understood with particular reference to the former and latter text.
In the present application, "at least one" means one or more, "a plurality" means two or more. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or multiple.
It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not imply any order of execution, and the order of execution of the processes should be determined by their functions and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.
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 application.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the system 100, the apparatus and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical functional division, and the actual implementation may have another division, for example, a plurality of units or components may be combined or integrated into another system, or some feature fields may be omitted, or not executed. 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.
The 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 position, or may be distributed on multiple 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 application 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 functions may be stored in a computer-readable storage medium if they are implemented in the form of software functional units and sold or used as separate products. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a portable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, an optical disk, or other various media capable of storing program codes.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A device for calibrating the sensitivity of a gas odorant concentration measurement sensor, the device comprising: the device comprises a control module, an external sensor module, an electromagnetic valve module, a fuel gas odor agent storage device, an internal sensor module and an alarm module;
the control module is respectively connected with the external sensor, the internal sensor module and the electromagnetic valve module, and is used for periodically sending a control instruction to the electromagnetic valve, receiving information collected by the external sensor module and the internal sensor module, and comprehensively processing and calibrating the information;
the external sensor module is used for acquiring the current concentration value of the environment;
the built-in sensor module is arranged at the exhaust end of the electromagnetic valve module and is used for collecting concentration value information released by the gas odorous agent storage device;
the electromagnetic valve module is used for receiving the instruction information of the control module and opening or closing a valve;
the fuel gas odor agent storage device is used for storing fuel gas odor agents with calibrated concentration;
and the alarm module is connected with the control module and is used for alarming.
2. The gas odorant concentration measurement sensor sensitivity calibration device of claim 1, wherein the control module is a programmable PLC controller.
3. The gas odorant concentration measurement sensor sensitivity calibration apparatus of claim 1, wherein the control module comprises:
the transceiver submodule is used for receiving and transmitting information;
the calibration operation module is used for receiving the information received by the information transceiver submodule, outputting a control instruction through the transceiver submodule and processing the information; calculating a calibration coefficient, and correcting a sensitivity threshold value according to the calibration coefficient;
a clock module for providing a time reference;
and the storage submodule is used for receiving and storing the data output by the calibration operation module through the transceiver submodule.
4. The gas odorant concentration measurement sensor sensitivity calibration device of claim 1, wherein the external sensor and the internal sensor are gas-sensitive electrochemical sensors, and the internal sensor and the external sensor are in the same specification and model.
5. The gas odorant concentration measurement sensor sensitivity calibration apparatus of claim 1, further comprising a check valve disposed between the solenoid valve module and the external sensor, a flow direction of the check valve being from the solenoid valve module to the external sensor.
6. The gas odorant concentration measurement sensor sensitivity calibration device of claim 1, further comprising a cleaning fan module, the cleaning fan module being respectively associated with the internal sensor module and the external sensor module for cleaning the sensor.
7. A method for calibrating the sensitivity of a gas odorous agent concentration measurement sensor, which is applied to the device for calibrating the sensitivity of a gas odorous agent concentration measurement sensor according to any one of claims 1 to 6, the method comprising:
s100, initial data acquisition, namely, initializing preset information when the device is started, and acquiring a concentration value of a current odorous agent storage device of a gas odorous agent concentration measurement sensor and an environment concentration value as initial reference data;
s200, collecting calibration data, and acquiring a concentration value of a current odorous agent storage device of a gas odorous agent concentration measurement sensor and environmental concentration value information at intervals as comparison data;
s300, processing the calibration data acquired in the calibration data acquisition step by combining initial reference data acquired by the initial data acquisition step to obtain a concentration calibration coefficient;
s400, correcting the sensitivity of the gas odorous agent concentration measuring sensor according to the concentration calibration coefficient.
8. The method of claim 7, wherein the S100 initial data collection, initialization of preset information at device start-up, obtaining a current odorant storage device concentration value and an environmental concentration value of the gas odorant concentration measurement sensor as initial reference data includes:
presetting an attenuation threshold value of a calibration gas odorous agent storage device and fluctuation coefficients of an internal sensor and an external sensor, and then sending a control instruction to a calibration electromagnetic valve module by a control module; and the electromagnetic valve module receives a control instruction to be opened, the gas odorous agent is released, and at the moment, the built-in sensor and the external sensor carry out measurement to obtain the current concentration value acquired by the gas odorous agent concentration measurement sensor.
9. The method for calibrating the sensitivity of a gas odorant concentration measurement sensor according to claim 8, wherein in the S200 calibration data acquisition, the built-in sensor module is cleaned by the blower module after each measurement, and the built-in sensor module is kept relatively closed after cleaning.
10. The method of claim 9, wherein the step S300 of processing the calibration data collected in the calibration data collection step in combination with initial reference data of the preliminary data collection to obtain the concentration calibration factor comprises:
firstly, calculating the difference value of the internal concentration values of two times by using the external concentration value and the internal concentration value acquired for the second time and the external concentration coefficient and the internal concentration value acquired for the first time so as to determine whether the attenuation of the gas odorous agent storage device is within a set attenuation threshold value; determining a difference value between the first external concentration and the internal concentration, calculating two difference values to obtain a fluctuation coefficient, and determining whether the fluctuation coefficient is within the fluctuation coefficient range of the internal and external sensors;
if the attenuation is within the threshold range and the fluctuation coefficient is normal, calculating a concentration calibration coefficient which is the ratio of an external concentration value to an internal concentration value, carrying out the next step, otherwise, stopping correction, alarming and warning faults;
and then, the final threshold value can be corrected by multiplying the concentration calibration coefficient by the preset alarm threshold value.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108802153A (en) * | 2018-04-24 | 2018-11-13 | 深圳市晓风建筑环境科技有限公司 | A kind of calibration method of periodic attenuation, electronic equipment and storage medium |
| CN110646466A (en) * | 2019-08-30 | 2020-01-03 | 浙江大华技术股份有限公司 | Calibration method, system and equipment of semiconductor type gas sensor |
| CN112129893A (en) * | 2020-09-23 | 2020-12-25 | 烟台创为新能源科技股份有限公司 | Online calibration method for CO sensor of battery thermal runaway monitoring system |
| CN112255298A (en) * | 2020-09-29 | 2021-01-22 | 广州香安化工有限公司 | Sensitivity calibration system and method for gas odorous agent concentration measurement sensor |
| CN115236135A (en) * | 2021-04-23 | 2022-10-25 | 中国石油化工股份有限公司 | Base line calibration method for gas sensor, control device and gas sensor |
| CN115586226A (en) * | 2018-07-11 | 2023-01-10 | 上海兆莹自控设备有限公司 | On-site gas double-sensor detection system and control method thereof |
| CN115728445A (en) * | 2022-10-15 | 2023-03-03 | 北京中立格林传感科技股份有限公司 | Sensor calibration method, device, equipment and computer readable storage medium |
-
2023
- 2023-03-20 CN CN202310266341.2A patent/CN115980282A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108802153A (en) * | 2018-04-24 | 2018-11-13 | 深圳市晓风建筑环境科技有限公司 | A kind of calibration method of periodic attenuation, electronic equipment and storage medium |
| CN115586226A (en) * | 2018-07-11 | 2023-01-10 | 上海兆莹自控设备有限公司 | On-site gas double-sensor detection system and control method thereof |
| CN110646466A (en) * | 2019-08-30 | 2020-01-03 | 浙江大华技术股份有限公司 | Calibration method, system and equipment of semiconductor type gas sensor |
| CN112129893A (en) * | 2020-09-23 | 2020-12-25 | 烟台创为新能源科技股份有限公司 | Online calibration method for CO sensor of battery thermal runaway monitoring system |
| CN112255298A (en) * | 2020-09-29 | 2021-01-22 | 广州香安化工有限公司 | Sensitivity calibration system and method for gas odorous agent concentration measurement sensor |
| CN115236135A (en) * | 2021-04-23 | 2022-10-25 | 中国石油化工股份有限公司 | Base line calibration method for gas sensor, control device and gas sensor |
| CN115728445A (en) * | 2022-10-15 | 2023-03-03 | 北京中立格林传感科技股份有限公司 | Sensor calibration method, device, equipment and computer readable storage medium |
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