Wine quality monitoring device based on gas detection

Abstract

The utility model discloses a wine quality monitoring device based on gas detection. The wine quality monitoring device comprises a sensor module, an air purification module, an internal standard module and a flow path control module, the sensor module comprises a plurality of groups of sensor arrays, the air purification module comprises a high-temperature metal oxidation unit, the internal standard module comprises an ethanol enrichment bottle and an ethanol volatilization chamber and is used for performing internal standard on sampled gas, and the flow path control module comprises a sampling pump and a plurality of electromagnetic valves. Analyzing the gas through the sensor array to obtain sampled gas data; impurities in air are purified through the high-temperature metal oxidation unit, different sample data are monitored and analyzed in multiple stages by switching the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve, and the multiple stages include the aging stage, the internal standard stage and the measurement stage. According to the device, the problem that the liquor quality is difficult to monitor in real time in traditional intermittent sampling is solved, and meanwhile, a large amount of manpower and material resources are saved.

Description

Technical Field

[0001] The utility model relates to the field of gas detection, in particular to a wine quality monitoring device based on gas detection. Background Art

[0002] In the production technology of modern wine brewing, due to the advantages of stainless steel large tanks such as corrosion resistance, easy cleaning and stable structure, the wine industry generally uses stainless steel large tanks for production and storage to maintain the hygiene and quality stability of wine. At the same time, storing wine in stainless steel large tanks can effectively reduce costs, improve the degree of mechanization and production efficiency.

[0003] However, due to chemical changes in the components of the wine liquid or the growth and metabolism of microorganisms, the long-term storage of wine will cause changes in the wine body, such as changes in the taste, aroma and color of the wine body. In the existing wine quality monitoring devices, the wine quality is generally monitored by intermittent sampling. This sampling method takes a long time, consumes a large amount of manpower and material resources, and cannot monitor in time when the wine quality changes rapidly. Summary of the Utility Model

[0004] The utility model aims at the disadvantages in the prior art and provides a wine quality monitoring device based on gas detection.

[0005] In order to solve the above technical problems, the utility model is solved by the following technical solutions:

[0006] A wine quality monitoring device based on gas detection is used to monitor the wine quality in a wine tank, and includes a sensor module, an air purification module, an internal standard module and a flow path control module. The sensor module, the air purification module, the internal standard module and the wine tank are connected through the pipelines of the flow path control module;

[0007] The sensor module includes several groups of sensor arrays. The air purification module includes a metal oxidation unit. The internal standard module performs internal standard on the sampled gas. The flow path control module includes a sampling pump and several solenoid valves. The gas is responded by the sensor arrays to obtain sampled gas data. The impurities in the air are purified by the metal oxidation unit;

[0008] The air outlet of the sensor module is connected to the air inlet of the sampling pump. The COM port of the first solenoid valve is connected to the air inlet of the sensor module. The NO port of the first solenoid valve is connected to the air purification module. The NC port of the first solenoid valve is connected to the COM port of the second solenoid valve. The NO port of the second solenoid valve is connected to the internal standard module. The NC port of the second solenoid valve is connected to the wine tank. The internal standard module is connected to the air inlet through the third solenoid valve. By switching the first solenoid valve, the sensor module is connected to the air purification module and the second solenoid valve respectively. By switching the second solenoid valve, the sensor module is connected to the wine tank and the internal standard module respectively, realizing the monitoring and analysis of different sample data in multiple stages, where the multiple stages include the aging stage, the internal standard stage, and the measurement stage.

[0009] As an implementable manner, the sensor module further includes a heating module and a heat dissipation module. The heating module heats the sensor array, and the heat dissipation module cools the sensor array. The temperature of the sensor module is stabilized by the heating module or / and the heat dissipation module.

[0010] As an implementable manner, in the aging stage, the sensor array is preheated based on the heating unit to keep the parameters of the sensor array stable. Control the COM port of the first solenoid valve to be connected to the NO port of the first solenoid valve, and control the second solenoid valve and the third solenoid valve to be closed, so that the flow path control module switches to connect the sensor module to the air purification module. The air is purified by the air purification module, and the response value of the sensor array is obtained in real time until the resistance of the sensor array remains stable.

[0011] Control the COM port of the first solenoid valve to be connected to the NC port of the first solenoid valve, control the COM port of the second solenoid valve to be connected to the NO port of the second solenoid valve, and control the third solenoid valve to be opened, so that the flow path control module switches to connect the sensor module to the internal standard module. The internal standard module provides a stable calibration gas for the sensor array, thereby maintaining the stability of the resistance of the sensor array.

[0012] As an implementable manner, in the internal standard stage, control the COM port of the first solenoid valve to be connected to the NO port of the first solenoid valve, and control the second solenoid valve and the third solenoid valve to be closed, so that the flow path control module switches to connect the sensor module to the air purification module. The air is purified by the air purification module, and the response value of the sensor array is obtained in real time until the resistance of the sensor array remains stable.

[0013] Control the COM port of the first solenoid valve to be connected to the NC port of the first solenoid valve, control the COM port of the second solenoid valve to be connected to the NO port of the second solenoid valve, and control the third solenoid valve to be opened, so that the flow path control module switches to connect the sensor module to the internal standard module. The internal standard module provides a stable calibration gas for the sensor array, thereby maintaining the stability of the resistance of the sensor array.

[0014] As an implementable mode, during the measurement phase, the COM port of the first solenoid valve is controlled to communicate with the NO port of the first solenoid valve, and the second and third solenoid valves are controlled to be closed, so that the flow path control module is switched to communicate with the sensor module and the air purification module. The air is purified through the air purification module, and the response values of the sensor array are obtained in real time until the resistance of the sensor array remains stable;

[0015] The COM port of the first solenoid valve is controlled to communicate with the NC port of the first solenoid valve, the COM port of the second solenoid valve is controlled to communicate with the NC port of the second solenoid valve, and the third solenoid valve is controlled to be closed, so that the flow path control module is switched to communicate with the sensor module and the wine tank. The power is provided by the sampling pump to transfer the gas in the wine tank to the sensor module, so that the resistance of the sensor array is maintained stable;

[0016] The COM port of the first solenoid valve is controlled to communicate with the NO port of the first solenoid valve, and the second and third solenoid valves are controlled to be closed, so that the flow path control module is switched to communicate with the sensor module and the air purification module. The air is purified through the air purification module, and the response values of the sensor array are obtained in real time until the resistance of the sensor array remains stable.

[0017] As an implementable mode, the sensor module further includes a temperature sensor, and the temperature response value of the sensor array and the real-time temperature change of the gas are obtained in real time through the temperature sensor, so as to realize temperature compensation.

[0018] The present utility model adopts the above technical solutions and has remarkable technical effects:

[0019] The problem that traditional intermittent sampling is difficult to monitor the quality of liquor in real time is solved by this device, and a large amount of human and material resources are saved at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained according to these drawings without creative efforts.

[0021] Figure 1 is the structural schematic diagram of the device of the present utility model;

[0022] Figure 2 is the distribution schematic diagram of the sensor array of the present utility model;

[0023] Figure 3It is a schematic diagram of sampling analysis of the device of the present utility model at different stages;

[0024] Figure 4 It is a schematic diagram of the structural connection of the present utility model. Specific embodiments

[0025] The present utility model will be further described in detail below in conjunction with embodiments. The following embodiments are explanations of the present utility model, and the present utility model is not limited to the following embodiments.

[0026] Embodiment 1:

[0027] A wine quality monitoring device based on gas detection is used to monitor the wine quality of a wine tank. As Figure 4 shown, it includes a sensor module, an air purification module, an internal standard module, and a flow path control module. The sensor module, the air purification module, the internal standard module, and the wine tank are connected through the pipelines of the flow path control module; A specific embodiment is as Figure 1 shown, including a sampling pump 1, a power supply 2, an internal standard module 3, a flow path control module 4, a sensor module 5, an air purification module 6, and a wine tank. The internal standard module 3 includes an ethanol enrichment bottle and an ethanol evaporation chamber, and the ethanol evaporation chamber provides ethanol air with a stable concentration; The metal oxidation unit of the air purification module 6 is a high-temperature metal oxidation unit for purifying impurities in the air, and adsorbents such as activated carbon can be used instead. The sensor module 5 includes several groups of sensor arrays. The internal standard module 3 performs internal standard on the sampled gas. The flow path control module 4 includes a sampling pump 1 and several solenoid valves. The solenoid valves include two-way solenoid valves and three-way solenoid valves. The gas sensor array responds to the gas to obtain sampled gas data; The impurities in the air are purified by the high-temperature metal oxidation unit. The sensor module is a gas sensor array. In one embodiment, the first 8 sensors with greater influence in the process of wine quality identification are selected according to the sensor characteristics. Through experiments, sensors No. 2, 4, 6, 9, 11, 13, and 17 are selected to form the sensor array in the sensor module. Among them, the distribution design diagram and detailed information of the sensor module are as Figure 3 shown.

[0028] The air outlet of the sensor module 5 is connected to the air inlet of the sampling pump 1. The COM port of the first solenoid valve is connected to the air inlet of the sensor module 5. The NO port of the first solenoid valve is connected to the air purification module 6. The NC port of the first solenoid valve is connected to the COM port of the second solenoid valve. The NO port of the second solenoid valve is connected to the internal standard module. The NC port of the second solenoid valve is connected to the wine tank. The internal standard module 3 is connected to the air inlet through the third solenoid valve. By switching the first solenoid valve, the sensor module 5 is respectively connected to the air purification module and the second solenoid valve. By switching the second solenoid valve, the sensor module 5 is respectively connected to the wine tank and the internal standard module 3, so as to realize the monitoring and analysis of different sample data in multiple stages, where the multiple stages include an aging stage, an internal standard stage and a measurement stage.

[0029] An impedance device made of a metal oxide thin film, the resistance of the impedance device changes with different gas compositions and concentrations, and a sensor array is composed of a variety of different sensors. The sensor array responds to the data in multiple stages, and thus multi-dimensional data to be measured can be obtained. Through subsequent learning and analysis by artificial intelligence algorithms, the quality of liquor can be evaluated.

[0030] The liquor quality monitoring device of the present utility model can also be in a sleep stage. The sleep stage includes the monitoring device standby and cooling the sensor module to reduce power consumption and extend the stability of the sensor, which can reduce the impact on the storage environment of the wine tank.

[0031] Of course, in order to make the working performance of the sensor module more stable, in one embodiment, the sensor module further includes a heating module and a heat dissipation module. The heating module heats the sensor array, and the heat dissipation module cools the sensor array. The temperature of the sensor module is made to tend to be stable through the heating module or / and the heat dissipation module.

[0032] In the prior art, in the actual application of liquor quality monitoring, the response values obtained by the sensor module will fluctuate greatly with time and temperature, so it has a great impact on the recognition of the algorithm. After the common temperature and humidity calibration of the sensor is adopted, the recognition effect of the liquor quality monitoring algorithm will be greatly weakened. Therefore, the internal standard module is used to internal standardize each sampling data to obtain internal standard data, and liquor quality monitoring based on the internal standard data can reduce the influence of temperature, humidity and time on the monitoring results.

[0033] The sampling and analysis frequency of the monitoring device is set to 3 - 12 times per day in this embodiment. The single sampling and analysis process can be divided into 3 stages, namely an aging stage, an internal standard stage and a measurement stage. The single sampling and analysis process is as Figure 3As shown. In the aging stage, turn on the device, preheat the sensor module, and maintain the stability of the sensor environmental parameters. The flow path control module switches to the air purification module, and the purified air stably purges the sensor module. After the resistance of the sensor array is initially stable, the flow path control module switches to the internal standard module, providing ethanol-air with a stable concentration to pass through the sensor module until the sensor resistance is stable. In the internal standard stage, the flow path control module switches back to the air purification module, and the purified air stably purges the sensor module. After the sensor resistance is stable, the flow path control module switches to the internal standard module, providing ethanol-air with a stable concentration to pass through the sensor module until the sensor resistance is stable. In the measurement stage, the flow path control module switches back to the air purification module, and the purified air stably purges the sensor module. After the sensor resistance is stable, the flow path control module switches to the alcohol gas collection channel, providing alcohol gas with a stable concentration to pass through the sensor module until the sensor resistance is stable, and then switches back to the air purification module, and the purified air stably purges the sensor module.

[0034] It can be seen that the aging stage is mainly responsible for the preheating of the device, system aging, and judgment of functional stability; the internal standard stage is mainly responsible for providing stable calibration gas for testing, forming a comparison with the results of subsequent sampling gases, and thus can offset the errors caused by external environmental fluctuations and internal system drifts; the measurement stage is mainly responsible for measuring the properties of the sampling gas to obtain the original sampling gas data, providing data support for the alcohol quality monitoring algorithm.

[0035] The following is the detailed working process in each stage:

[0036] In the aging stage, first preheat the sensor array through the heating unit until the parameters of the sensor array are stable. Control the COM port of the first solenoid valve SV1 to communicate with the NO port of the first solenoid valve SV1, and control the second solenoid valve SV2 and the third solenoid valve SV3 to be closed, so that the flow path control module switches to connect the sensor module and the air purification module. Purify the impurities in the air through the high-temperature metal oxidation unit in the air purification module, and obtain and observe the response value of the sensor array in real time until the resistance of the sensor array is stable;

[0037] After stability is maintained, control the COM port of the first solenoid valve SV1 to communicate with the NC port of the first solenoid valve SV1, control the COM port of the second solenoid valve SV2 to communicate with the NO port of the second solenoid valve SV2, and control the third solenoid valve SV3 to open, so that the flow path control module switches to connect the sensor module and the internal standard module. Provide a stable calibration gas for the sensor array through the internal standard module. It can be understood that in this embodiment, it is an ethanol calibration gas. Obtain the response value of the calibration gas of the sensor array in real time, and thus maintain the stability of the resistance of the sensor array.

[0038] In the internal standard stage, the COM port of the first solenoid valve SV1 is controlled to communicate with the NO port of the first solenoid valve SV1, and the second solenoid valve SV2 and the third solenoid valve SV3 are controlled to close, so that the flow path control module is switched to communicate with the sensor module and the air purification module. The impurities in the air are purified by the high-temperature metal oxidation unit in the air purification module, and the response values of the sensor array are obtained in real time and observed in real time until the resistance of the sensor array remains stable.

[0039] After stability is maintained, the COM port of the first solenoid valve SV1 is controlled to communicate with the NC port of the first solenoid valve SV1, the COM port of the second solenoid valve SV2 is controlled to communicate with the NO port of the second solenoid valve SV2, and the third solenoid valve SV3 is controlled to open, so that the flow path control module is switched to communicate with the sensor module and the internal standard module. A stable calibration gas is provided for the sensor array by the internal standard module. It can be understood that in this embodiment, it is an ethanol calibration gas. The response values of the calibration gas of the sensor array are obtained in real time, so as to keep the resistance of the sensor array stable.

[0040] In the measurement stage, the COM port of the first solenoid valve SV1 is controlled to communicate with the NO port of the first solenoid valve SV1, and the second solenoid valve SV2 and the third solenoid valve SV3 are controlled to close, so that the flow path control module is switched to communicate with the sensor module and the air purification module. The impurities in the air are purified by the high-temperature metal oxidation unit in the air purification module, and the response values of the sensor array are obtained in real time and observed in real time until the resistance of the sensor array remains stable.

[0041] After stability is maintained, the COM port of the first solenoid valve SV1 is controlled to communicate with the NC port of the first solenoid valve SV1, the COM port of the second solenoid valve SV2 is controlled to communicate with the NC port of the second solenoid valve SV2, and the third solenoid valve SV3 is controlled to close, so that the flow path control module is switched to communicate with the sensor module and the wine tank. The gas in the wine tank is transmitted to the sensor module by the power provided by the sampling pump, so that the resistance of the sensor array remains stable.

[0042] After stability is maintained, the COM port of the first solenoid valve SV1 is controlled to communicate with the NO port of the first solenoid valve SV1, and the second solenoid valve SV2 and the third solenoid valve SV2 are controlled to close, so that the flow path control module is switched to communicate with the sensor module and the air purification module. The impurities in the air are purified by the high-temperature metal oxidation unit in the air purification module, and the response values of the sensor array are obtained in real time and observed in real time until the resistance of the sensor array remains stable.

[0043] In addition, since it is necessary to control the temperature of the sensor array to keep it at an appropriate temperature, the sensor module further includes a temperature sensor, which is used to obtain the temperature response value of the sensor array and the real-time temperature change of the gas in real time, so as to realize temperature compensation.

[0044] Embodiment 2:

[0045] A method for monitoring the quality of liquor based on gas detection is realized based on a liquor quality monitoring device. The liquor quality monitoring device includes a sensor module, an air purification module, an internal standard module and a flow path control module. The air outlet of the sensor module is communicated with the air inlet of the sampling pump. The COM port of the first solenoid valve is communicated with the air inlet of the sensor module. The NO port of the first solenoid valve is communicated with the air purification module. The NC port of the first solenoid valve is communicated with the COM port of the second solenoid valve. The NO port of the second solenoid valve is communicated with the internal standard module. The NC port of the second solenoid valve is communicated with the wine tank. The internal standard module is communicated with the air inlet through the third solenoid valve, and includes the following steps:

[0046] In the aging stage, first, the sensor array is preheated by the heating unit until the parameters of the sensor array are stable. Control the COM port of the first solenoid valve SV1 to be communicated with the NO port of the first solenoid valve SV1, and control the second solenoid valve SV2 and the third solenoid valve SV3 to be closed, so that the flow path control module is switched to communicate the sensor module with the air purification module. The high-temperature metal oxidation unit in the air purification module purifies the impurities in the air, and the response value of the sensor array is obtained in real time and observed in real time until the resistance of the sensor array is stable;

[0047] After stability is maintained, control the COM port of the first solenoid valve SV1 to be communicated with the NC port of the first solenoid valve SV1, control the COM port of the second solenoid valve SV2 to be communicated with the NO port of the second solenoid valve SV2, and control the third solenoid valve SV3 to be opened, so that the flow path control module is switched to communicate the sensor module with the internal standard module. The internal standard module provides a stable calibration gas for the sensor array. It can be understood that in this embodiment, it is ethanol calibration gas. The response value of the calibration gas of the sensor array is obtained in real time, so as to maintain the stability of the resistance of the sensor array.

[0048] In the internal standard stage, control the COM port of the first solenoid valve SV1 to be communicated with the NO port of the first solenoid valve SV1, and control the second solenoid valve SV2 and the third solenoid valve SV3 to be closed, so that the flow path control module is switched to communicate the sensor module with the air purification module. The high-temperature metal oxidation unit in the air purification module purifies the impurities in the air, and the response value of the sensor array is obtained in real time and observed in real time until the resistance of the sensor array is stable;

[0049] After stabilization, control the COM port of the first solenoid valve SV1 to communicate with the NC port of the first solenoid valve SV1, control the COM port of the second solenoid valve SV2 to communicate with the NO port of the second solenoid valve SV2, and control the third solenoid valve SV3 to open, so that the flow path control module is switched to connect the sensor module with the internal standard module. A stable calibration gas is provided to the sensor array through the internal standard module. It can be understood that in this embodiment, it is an ethanol calibration gas. The response value of the calibration gas of the sensor array is obtained in real time, and thus the resistance of the sensor array is maintained stable.

[0050] In the measurement stage, control the COM port of the first solenoid valve SV1 to communicate with the NO port of the first solenoid valve SV1, control the second solenoid valve SV2 and the third solenoid valve SV3 to close, so that the flow path control module is switched to connect the sensor module with the air purification module. The impurities in the air are purified by the high-temperature metal oxidation unit in the air purification module, and the response value of the sensor array is obtained in real time and the response value is observed in real time until the resistance of the sensor array remains stable.

[0051] After stabilization, control the COM port of the first solenoid valve SV1 to communicate with the NC port of the first solenoid valve SV1, control the COM port of the second solenoid valve SV2 to communicate with the NC port of the second solenoid valve SV2, and control the third solenoid valve SV3 to close, so that the flow path control module is switched to connect the sensor module with the wine tank. The gas in the wine tank is transmitted to the sensor module by the power provided by the sampling pump, so that the resistance of the sensor array is maintained stable.

[0052] After maintaining stability, control the COM port of the first solenoid valve SV1 to communicate with the NO port of the first solenoid valve SV1, control the second solenoid valve SV2 and the third solenoid valve SV2 to close, so that the flow path control module is switched to connect the sensor module with the air purification module. The impurities in the air are purified by the high-temperature metal oxidation unit in the air purification module, and the response value of the sensor array is obtained in real time and the response value is observed in real time until the resistance of the sensor array remains stable.

[0053] It should be noted that:

[0054] The "one embodiment" or "embodiment" mentioned in the specification means that the specific features, structures or characteristics described in connection with the embodiment are included in at least one embodiment of the present invention. Therefore, the phrases "one embodiment" or "embodiment" that appear throughout the specification do not necessarily all refer to the same embodiment.

[0055] In addition, it should be noted that for the specific embodiments described in this specification, the shapes, names, etc. of the components can be different. Any equivalent or simple changes made according to the structure, features, and principles described in the inventive concept of the utility model are included in the protection scope of the utility model patent. Those skilled in the art to which the utility model pertains can make various modifications, supplements, or use similar methods for substitution to the specific embodiments described, as long as they do not deviate from the structure of the utility model or exceed the scope defined by this claim book, they should fall within the protection scope of the utility model.

Claims

1. A wine quality monitoring device based on gas detection, which monitors the wine quality in a wine tank, characterized in that: It includes a sensor module, an air purification module, an internal standard module and a flow control module, wherein the sensor module, the air purification module, the internal standard module and the wine tank are connected through a pipeline of the flow control module; The sensor module includes several groups of sensor arrays, the air purification module includes a metal oxidation unit, the internal standard module performs internal standardization on the sampled gas, and the flow control module includes a sampling pump and several solenoid valves. The sensor array responds to the gas to obtain the sampled gas data; the impurities in the air are purified by the metal oxidation unit; The air outlet of the sensor module is connected to the air inlet of the sampling pump, the COM port of the first solenoid valve is connected to the air inlet of the sensor module, the NO port of the first solenoid valve is connected to the air purification module, the NC port of the first solenoid valve is connected to the COM port of the second solenoid valve, the NO port of the second solenoid valve is connected to the internal standard module, the NC port of the second solenoid valve is connected to the wine tank, and the internal standard module is connected to the air inlet through the third solenoid valve; by switching the first solenoid valve, the sensor module is connected to the air purification module and the second solenoid valve respectively, and by switching the second solenoid valve, the sensor module is connected to the wine tank and the internal standard module respectively, so as to realize monitoring and analysis of different sample data in multiple stages, wherein the multiple stages include an aging stage, an internal standard stage and a measurement stage.

2. The wine quality monitoring device based on gas detection according to claim 1 is characterized in that: The sensor module further comprises a heating module and a heat dissipation module. The heating module heats the sensor array, and the heat dissipation module cools the sensor array. The temperature of the sensor module is stabilized by the heating module and / or the heat dissipation module.

3. The wine quality monitoring device based on gas detection according to claim 1 is characterized in that: In the aging stage, the sensor array is preheated based on the heating unit to keep the parameters of the sensor array stable, the COM port of the first solenoid valve is controlled to be connected with the NO port of the first solenoid valve, and the second solenoid valve and the third solenoid valve are controlled to be closed, so that the flow control module switches to the sensor module and the air purification module are connected, and the air is purified by the air purification module, and the response value of the sensor array is obtained in real time until the resistance of the sensor array remains stable; Control the COM port of the first solenoid valve to be connected with the NC port of the first solenoid valve, control the COM port of the second solenoid valve to be connected with the NO port, control the third solenoid valve to open, so that the flow control module switches to the sensor module and is connected with the internal standard module, and provides stable calibration gas for the sensor array through the internal standard module, thereby maintaining the resistance of the sensor array stable.

4. The wine quality monitoring device based on gas detection according to claim 1 is characterized in that: In the internal standard stage, the COM port of the first solenoid valve is controlled to be connected to the NO port of the first solenoid valve, and the second solenoid valve and the third solenoid valve are controlled to be closed, so that the flow control module is switched to connect the sensor module with the air purification module, and the air is purified by the air purification module, and the response value of the sensor array is obtained in real time until the resistance of the sensor array remains stable; Control the COM port of the first solenoid valve to be connected with the NC port of the first solenoid valve, control the COM port of the second solenoid valve to be connected with the NO port of the second solenoid valve, control the third solenoid valve to open, so that the flow control module switches to the sensor module and is connected with the internal standard module, and provides stable calibration gas for the sensor array through the internal standard module, thereby maintaining the resistance of the sensor array stable.

5. The wine quality monitoring device based on gas detection according to claim 1 is characterized in that: In the measurement phase, the COM port of the first solenoid valve is controlled to be connected to the NO port of the first solenoid valve, and the second solenoid valve and the third solenoid valve are controlled to be closed, so that the flow control module is switched to connect the sensor module with the air purification module, and the air is purified by the air purification module, and the response value of the sensor array is obtained in real time until the resistance of the sensor array remains stable; Control the COM port of the first solenoid valve to be connected to the NC port of the first solenoid valve, control the COM port of the second solenoid valve to be connected to the NC port of the second solenoid valve, and control the third solenoid valve to be closed, so that the flow control module switches to the sensor module to be connected to the wine tank, and the sampling pump provides power to transmit the gas in the wine tank to the sensor module, so that the resistance of the sensor array remains stable; Control the COM port of the first solenoid valve to be connected with the NO port of the first solenoid valve, control the second solenoid valve and the third solenoid valve to be closed, so that the flow control module switches to the sensor module and is connected with the air purification module, purifies the air through the air purification module, and obtains the response value of the sensor array in real time until the resistance of the sensor array remains stable.

6. The wine quality monitoring device based on gas detection according to claim 1 is characterized in that: The sensor module also includes a temperature sensor, which is used to obtain the temperature response value of the sensor array and the real-time temperature change of the gas in real time, thereby achieving temperature supplementation.

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