System, method and terminal for detecting total amount of carbon dioxide

Abstract

The invention provides a total carbon dioxide detection system and method and a terminal. Gas environment parameters are monitored in real time through an environment detection module, and an information fusion module sends instructions to a precise concentration measurement module and a precise flow measurement module. And after the two modules receive the instruction, the gas concentration and flow are finely measured by using multiple measurement modes, and the data are fed back to the information fusion module. The information fusion module analyzes concentration and flow based on environmental parameters and calculates the total amount of carbon dioxide in combination with feedback data. The system can adapt to gas environment changes in real time, precise environment compensation and mode switching are achieved through an intelligent algorithm, the measurement precision and data stability are remarkably improved, and reliable data support and scientific basis are provided for optimization, monitoring and control decision making of the carbon dioxide capture, utilization and storage process.

Description

Technical Field

[0001] The present invention relates to the technical field of environmental detection, and in particular to a system, method and terminal for detecting total amount of carbon dioxide. Background Art

[0002] With the growth of global energy demand and the enhancement of environmental protection awareness, carbon dioxide capture, utilization and storage technology has become one of the important means to mitigate climate change. Carbon dioxide capture, utilization and storage technology captures carbon dioxide from industrial emissions and uses or stores it in formations, thereby reducing carbon dioxide emissions and achieving the goal of carbon dioxide emission reduction. However, the carbon dioxide capture, utilization and storage process involves complex processes and diverse operating conditions, which puts forward high technical requirements for the real-time detection of carbon dioxide.

[0003] In terms of flow measurement, thermal mass flowmeter is a modern technology based on the principle of heat diffusion. It can directly measure the gas mass flow rate and is suitable for low flow rate and stable flow occasions, but it is easily disturbed by ambient temperature and humidity under high flow rate or complex working conditions. As a representative of non-contact measurement technology, ultrasonic flowmeter has attracted much attention due to its high accuracy and wide application range, especially in high flow rate or wide dynamic range flow detection. However, its sensitivity is poor under low flow rate conditions, which has become the focus of technical optimization.

[0004] In terms of concentration measurement, non-dispersive infrared (NDIR) sensors are the most widely used gas concentration detection technology. They use the absorption characteristics of carbon dioxide to infrared light of a specific wavelength to achieve detection. They have the advantages of high sensitivity and fast response speed, and are suitable for continuous measurement of medium and low concentrations. However, under high concentration conditions, measurement saturation or linear deviation may occur. Laser gas analysis technology detects the absorption characteristics of carbon dioxide through high-precision laser spectroscopy. It is suitable for detection in a wide concentration range and high dynamic occasions, and has excellent anti-interference capabilities. However, its high cost and requirements for the operating environment limit its popularity.

[0005] In addition, temperature, humidity and pressure are also important factors affecting the accuracy of carbon dioxide measurement. Under different working conditions, these parameters will significantly affect the measurement results of gas flow and concentration. Therefore, developing equipment that can monitor temperature, humidity and pressure changes in real time and compensate these parameters in the measurement of flow and concentration is crucial to improving monitoring accuracy and adapting to complex working conditions.

[0006] In general, although existing technologies have made great progress in the detection of carbon dioxide flow and concentration, a single type of equipment usually has limitations and is difficult to fully adapt to the complex operating conditions in the carbon dioxide capture, utilization and storage process. Summary of the invention

[0007] In view of the shortcomings of the prior art mentioned above, the object of the present invention is to provide a system, method and terminal for detecting the total amount of carbon dioxide, which are used to solve the technical problems such as insufficient accuracy, poor adaptability and poor data continuity in the detection of the total amount of carbon dioxide in the carbon dioxide capture, utilization and storage processes in the prior art.

[0008] To achieve the above-mentioned purpose and other related purposes, the present invention provides a total carbon dioxide detection system, the system comprising: an environment detection module, an information fusion module, a precise concentration measurement module and a precise flow measurement module; wherein the information fusion module is connected to the environment detection module, the precise concentration measurement module and the precise flow measurement module respectively; the environment detection module is used to monitor the gas environment parameters in real time; the information fusion module is used to send precise concentration measurement instructions and precise flow measurement instructions to the precise concentration measurement module and the precise flow measurement module; it is also used to analyze the concentration and flow based on the gas environment parameters monitored by the environment detection module, and calculate the total carbon dioxide in combination with the concentration measurement data and flow measurement data fed back by the precise concentration measurement module and the precise flow measurement module to obtain the total carbon dioxide calculation result; the precise concentration measurement module is used to, after receiving the precise concentration measurement instruction, use the built-in multiple concentration measurement modes to perform fine measurement of the gas concentration parameters, and feed back the concentration measurement data measured in each mode to the information fusion module; the precise flow measurement module is used to, after receiving the precise flow measurement instruction, use the built-in multiple flow measurement modes to perform fine measurement of the gas flow parameters, and feed back the flow measurement data in each mode to the information fusion module.

[0009] In one embodiment of the present invention, the environmental detection module is used to monitor gas environmental data in real time through a sensor device, and to input a concentration measurement mode threshold corresponding to each concentration measurement mode and a flow measurement mode threshold corresponding to each flow measurement mode; wherein the sensor device includes: a flow meter, a concentration sensor, a temperature sensor, a humidity sensor and a pressure sensor installed on a gas flow pipeline, for real-time monitoring of gas flow parameters, gas concentration parameters, gas temperature parameters, gas humidity parameters and gas pressure parameters.

[0010] In one embodiment of the present invention, the information fusion module includes: a data acquisition unit, which is used to receive the gas environment parameters from the environmental detection module and perform data format conversion through a standardized algorithm; an instruction sending unit, which is used to send a precise concentration measurement instruction to the precise concentration measurement module and a precise flow measurement instruction to the precise flow measurement module; a data processing unit, which is used to determine the optimal measurement mode of the current precise concentration measurement module and the precise flow measurement module based on the gas environment parameters after format conversion; in combination with the optimal measurement mode of the precise concentration measurement module and the precise flow measurement module, the concentration measurement data and flow measurement data involved in the calculation of the total amount of carbon dioxide are screened from the data fed back by the precise concentration measurement module and the precise flow measurement module to calculate the current total amount of carbon dioxide; a data storage unit, which is used to store the calculated total amount of carbon dioxide.

[0011] In one embodiment of the present invention, the precise concentration measurement module comprises: a valve installed on the detection pipeline, an air pump, a multi-layer filtering device, an agitator and a concentration measurement unit;

[0012] Among them, after receiving the precise concentration measurement instruction, the valve is opened, and the vacuum pump introduces the gas from the main channel into an independent detection pipeline. The gas entering the detection pipeline is filtered through a multi-layer filtering device, and the filtered gas is stirred evenly by an agitator. Then, the concentration measurement unit uses a non-dispersive infrared measurement mode and a laser gas analysis measurement mode to measure the gas concentration parameters of the stirred gas in a precise manner to obtain concentration measurement data.

[0013] In one embodiment of the present invention, the concentration measurement unit is built with a concentration sensor integrated device and an environmental compensation unit; the concentration sensor integrated device includes: a non-dispersive infrared sensor and a laser gas analysis device; the concentration measurement unit is used to use the non-dispersive infrared sensor to perform fine measurement of gas concentration parameters in a non-dispersive infrared measurement mode, and to use the laser gas analysis device to perform fine measurement of gas concentration parameters in a laser gas analysis measurement mode, and to perform environmental compensation on the data measured by the non-dispersive infrared sensor and the laser gas analysis device in combination with the environmental data measured in real time by the environmental compensation unit, so as to obtain non-dispersive infrared concentration measurement data and laser gas analysis concentration measurement data.

[0014] In one embodiment of the present invention, the precise flow measurement module includes: an ultrasonic flow measurement unit, which is equipped with an ultrasonic flow meter and a temperature sensor, and is used to start the ultrasonic flow measurement mode after receiving the precise flow measurement instruction, and use the ultrasonic flow meter to accurately measure the gas flow parameters, and use the gas temperature monitored in real time by the temperature sensor to perform temperature compensation on the measured data to obtain ultrasonic flow measurement data; a thermal mass flow measurement unit, which is equipped with a thermal mass flow meter and an electromagnetic sensor, and is used to start the thermal mass flow measurement mode after receiving the precise flow measurement instruction, and use the thermal mass flow meter to accurately measure the gas flow parameters, and use the signal strength generated by the fluid flow rate monitored in real time by the electromagnetic sensor to adjust the signal gain to obtain thermal mass flow measurement data.

[0015] In one embodiment of the present invention, the optimal measurement mode of the current precise concentration measurement module and the precise flow measurement module is determined based on the gas environment parameters after format conversion, including: inputting the gas environment parameters after format conversion and historical data into the prediction model for prediction to obtain flow prediction values ​​and concentration prediction values; based on the calibration algorithm, using the flow prediction value and concentration prediction value as well as the flow measurement value and concentration measurement value to calculate the flow calibration value and the concentration calibration value; wherein, the gas flow rate and gas concentration after format conversion are used as the flow measurement value and the concentration measurement value, respectively; the flow calibration value is compared with the non-dispersive infrared measurement mode threshold and the laser gas analysis measurement mode threshold in the precise concentration measurement mode threshold to determine the optimal measurement mode of the precise concentration measurement module, and the concentration calibration value is compared with the ultrasonic flow measurement mode threshold and the thermal mass flow measurement mode threshold in the precise flow measurement mode threshold to determine the optimal measurement mode of the precise flow measurement module.

[0016] In one embodiment of the present invention, the optimal measurement mode of the precise concentration measurement module and the precise flow measurement module is combined, and the concentration measurement data and flow measurement data involved in the calculation of the total amount of carbon dioxide are screened from the data fed back by the precise concentration measurement module and the precise flow measurement module. Calculating the current total amount of carbon dioxide includes: comparing the non-dispersive infrared concentration measurement data fed back by the precise concentration measurement module with the laser gas analysis concentration measurement data, and comparing the ultrasonic flow measurement data fed back by the precise flow measurement module with the thermal mass flow measurement data, to determine whether the concentration measurement data and the flow measurement data are abnormal; if there is no abnormality, calculating the total amount of carbon dioxide according to the concentration measurement data corresponding to the optimal measurement mode of the precise concentration measurement module and the flow measurement data corresponding to the optimal measurement mode of the precise flow measurement module.

[0017] To achieve the above-mentioned purpose and other related purposes, the present invention provides a method for detecting the total amount of carbon dioxide, which is applied to a total amount of carbon dioxide detection system, comprising: an environment detection module, an information fusion module, a precise concentration measurement module and a precise flow measurement module, the method comprising: monitoring the gas environment parameters in real time by the environment detection module; sending a precise concentration measurement instruction and a precise flow measurement instruction to the precise concentration measurement module and the precise flow measurement module by the information fusion module; after receiving the precise concentration measurement instruction and the precise flow measurement instruction, the precise concentration measurement module and the precise flow measurement module use a built-in multiple concentration measurement mode and a multiple flow measurement mode to perform fine measurements on the gas concentration parameter and the gas flow parameter, and feed back the concentration measurement data and the concentration measurement data to the information fusion module; analyzing the concentration and flow based on the monitored gas environment parameters by the information fusion module, and calculating the total amount of carbon dioxide in combination with the concentration measurement data and the flow measurement data fed back by the precise concentration measurement module and the precise flow measurement module, to obtain a calculation result of the total amount of carbon dioxide.

[0018] To achieve the above-mentioned purpose and other related purposes, the present invention provides an electronic terminal, comprising: one or more memories and one or more processors; the one or more memories are used to store computer programs; the one or more processors are connected to the memories and are used to run the computer programs to execute the total carbon dioxide detection system.

[0019] As described above, the present invention is a system, method and terminal for detecting the total amount of carbon dioxide, which has the following beneficial effects: the present invention constructs a high-precision measurement system that integrates the dynamic switching of multiple sensors and the calibration function of environmental data. The system monitors the gas environment parameters in real time through the environmental detection module, and the information fusion module sends instructions to the precise concentration measurement module and the precise flow measurement module. After receiving the instructions, the two modules use a variety of measurement modes to perform fine measurements of gas concentration and flow, and feed the data back to the information fusion module. The information fusion module analyzes the concentration and flow based on environmental parameters, and calculates the total amount of carbon dioxide based on the feedback data. The present invention can adapt to changes in the gas environment in real time, realize precise environmental compensation and mode switching through intelligent algorithms, significantly improve measurement accuracy and data stability, and provide reliable data support and scientific basis for the optimization, monitoring and control decision-making of carbon dioxide capture, utilization and storage processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Shown is a structural schematic diagram of a total carbon dioxide amount detection system in one embodiment of the present invention.

[0021] Figure 2 Shown is a schematic diagram of the working process of a total carbon dioxide amount detection system in one embodiment of the present invention.

[0022] Figure 3 It is a schematic flow chart of a method for detecting the total amount of carbon dioxide in one embodiment of the present invention.

[0023] Figure 4 Shown is a schematic structural diagram of an electronic terminal in an embodiment of the present invention. DETAILED DESCRIPTION

[0024] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0025] It should be noted that in the following description, reference is made to the accompanying drawings, which describe several embodiments of the present invention. It should be understood that other embodiments may also be used, and that mechanical composition, structural, electrical and operational changes may be made without departing from the spirit and scope of the present invention. The following detailed description should not be considered restrictive, and the scope of the embodiments of the present invention is limited only by the claims of the published patents. The terms used herein are only for describing specific embodiments and are not intended to limit the present invention. Spatially related terms, such as "upper", "lower", "left", "right", "below", "below", "lower", "above", "upper", etc., may be used in the text to facilitate the description of the relationship between an element or feature shown in the figure and another element or feature.

[0026] Throughout the specification, when a part is said to be "connected" to another part, this includes not only the case of "direct connection" but also the case of "indirect connection" by placing other elements therebetween. In addition, when a part is said to "include" a certain constituent element, unless otherwise stated, it does not exclude other constituent elements, but means that other constituent elements may be included.

[0027] The terms first, second and third mentioned herein are used to describe various parts, components, regions, layers and / or segments, but are not limited thereto. These terms are only used to distinguish a certain part, component, region, layer or segment from other parts, components, regions, layers or segments. Therefore, the first part, component, region, layer or segment described below may refer to the second part, component, region, layer or segment within the scope of the present invention.

[0028] Furthermore, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless there is an indication to the contrary in the context. It should be further understood that the terms "comprise", "include" indicate the presence of the described features, operations, elements, components, items, kinds, and / or groups, but do not exclude the presence, occurrence or addition of one or more other features, operations, elements, components, items, kinds, and / or groups. The terms "or" and "and / or" used herein are interpreted as inclusive, or mean any one or any combination. Therefore, "A, B or C" or "A, B and / or C" means "any of the following: A; B; C; A and B; A and C; B and C; A, B and C". Exceptions to this definition will only occur when the combination of elements, functions or operations is inherently mutually exclusive in some way.

[0029] The present invention provides a total carbon dioxide detection system, which monitors gas environment parameters in real time through an environmental detection module, and an information fusion module sends instructions to a precise concentration measurement module and a precise flow measurement module. After receiving the instructions, the two modules use a variety of measurement modes to perform fine measurements of gas concentration and flow, and feed the data back to the information fusion module. The information fusion module analyzes the concentration and flow based on environmental parameters, and calculates the total carbon dioxide amount based on the feedback data. The present invention can adapt to changes in the gas environment in real time, realize precise environmental compensation and mode switching through intelligent algorithms, significantly improve measurement accuracy and data stability, and provide reliable data support and scientific basis for the optimization, monitoring and control decisions of carbon dioxide capture, utilization and storage processes.

[0030] The following is a detailed description of the embodiments of the present invention with reference to the accompanying drawings so that those skilled in the art can easily implement the present invention. The present invention can be embodied in many different forms and is not limited to the embodiments described herein.

[0031] like Figure 1 A structural schematic diagram of a total carbon dioxide amount detection system in an embodiment of the present invention is shown.

[0032] The system can realize high-precision detection of the total amount of carbon dioxide in the process of carbon dioxide capture, utilization and storage. The system comprises: an environment detection module 1, an information fusion module 2, a precise concentration measurement module 3 and a precise flow measurement module 4; wherein the information fusion module 2 is respectively connected to the environment detection module 1, the precise concentration measurement module 3 and the precise flow measurement module 4;

[0033] The environmental detection module 1 is responsible for real-time monitoring of the environmental parameters of the gas and is the basic information source of the entire system;

[0034] The information fusion module 2 is the data processing and control center of the whole system, and is used to send precise concentration measurement instructions and precise flow measurement instructions to the precise concentration measurement module 3 and the precise flow measurement module 4; it is also used to analyze the concentration and flow based on the gas environment parameters monitored by the environment detection module 1, and calculate the total amount of carbon dioxide in combination with the concentration measurement data and flow measurement data fed back by the precise concentration measurement module 3 and the precise flow measurement module 4, to obtain the total amount of carbon dioxide calculation result;

[0035] The precise concentration measurement module 3 is used to perform precise measurement of gas concentration parameters using multiple built-in concentration measurement modes after receiving the precise concentration measurement instruction, and feed back the concentration measurement data measured in each mode to the information fusion module 2 for calculating the total amount of carbon dioxide;

[0036] The precise flow measurement module 4 is used to perform precise measurement of gas flow parameters using built-in multiple flow measurement modes after receiving the precise flow measurement instruction, and feed back the flow measurement data in each mode to the information fusion module 2 for calculating the total amount of carbon dioxide.

[0037] In one embodiment, the environment detection module 1 is used to monitor gas environment data in real time through a sensor device, and input a concentration measurement mode threshold corresponding to each concentration measurement mode and a flow measurement mode threshold corresponding to each flow measurement mode;

[0038] Among them, the sensor device includes: a flow meter, a concentration sensor, a temperature sensor, a humidity sensor and a pressure sensor installed on the gas flow pipeline, which is used to monitor the gas flow parameters, gas concentration parameters, gas temperature parameters, gas humidity parameters and gas pressure parameters in real time.

[0039] The environment detection module 1 monitors the gas environment data in real time through a sensor device, and the sensor device includes various types of sensors and is installed on the pipeline through which the gas flows, as follows:

[0040] Flow meter: used to monitor gas flow parameters in real time. It can measure the gas flow through the pipeline per unit time. Although the precise flow measurement module 4 will perform more detailed measurements, the flow meter helps the system quickly understand the approximate content of carbon dioxide in the gas, providing a reference for the subsequent precise measurement data selection.

[0041] Concentration sensor: It can preliminarily detect the concentration parameters of carbon dioxide in the gas. Although the precise concentration measurement module 3 will perform more detailed measurements, the preliminary data provided by the concentration sensor helps the system quickly understand the approximate content of carbon dioxide in the gas and provide a reference for the subsequent selection of precise measurement data.

[0042] Temperature sensor: responsible for monitoring gas temperature parameters, its measurement range is usually -40℃ to 60℃, with an accuracy of ±0.05℃. Temperature has a significant impact on the physical and chemical properties of gas, such as affecting the density and molecular movement speed of gas, which in turn affects the measurement of carbon dioxide concentration and flow, so accurate temperature measurement is one of the key factors to ensure measurement accuracy.

[0043] Humidity sensor: used to monitor gas humidity parameters in real time, the measurement range is generally 0%-100% RH, and the accuracy is ±1% RH. Changes in humidity will affect the composition and properties of the gas, so accurate measurement of humidity is very important for correcting measurement results and ensuring system reliability.

[0044] Pressure sensor: It can monitor gas pressure parameters in real time, with a measurement range of approximately 0.1MPa to 20MPa and an accuracy of ±0.01MPa. Pressure changes will affect the volume and flow of the gas, so accurate pressure measurement is a necessary condition to ensure accurate measurement results.

[0045] In order to better adapt to the complex industrial environment, these sensors are made of corrosion-resistant materials, such as 316L stainless steel or polymer anti-corrosion materials. 316L stainless steel has good corrosion resistance and strength, and can work stably in environments containing corrosive substances such as acids and alkalis; polymer anti-corrosion materials have excellent chemical stability and anti-aging properties, which can effectively protect the internal components of the sensor from corrosion, extend the service life of the sensor, and ensure the long-term stable operation of the system.

[0046] All sensors are connected to the information fusion module 2 through a communication interface, and the collected data are transmitted to the data acquisition unit in the form of digital signals.

[0047] The environmental detection module 1 not only monitors environmental parameters, but also needs to input the concentration measurement mode threshold corresponding to each concentration measurement mode and the flow measurement mode threshold corresponding to each flow measurement mode. Corresponding to the concentration measurement mode threshold of each concentration measurement mode, for the concentration measurement modes of the non-dispersed infrared measurement mode and the laser gas analysis measurement mode, set corresponding thresholds respectively. Corresponding to the flow measurement mode threshold of each flow measurement mode, different thresholds are set for the ultrasonic flow measurement mode and the thermal mass flow measurement mode. These thresholds are not set arbitrarily, but are determined according to the respective characteristics of different measurement modes (such as measurement accuracy, response time, measurement range, etc.) and their scope of application (under what environmental conditions or measurement objects this mode is more applicable). By subsequently comparing the concentration measurement data and the flow measurement data with the thresholds of different modes, it can be obtained which modes have more appropriate data measured, and the accuracy of calculating the total amount of carbon dioxide can be further improved.

[0048] In one embodiment, the precise concentration measurement module 3 comprises: a valve installed on the detection pipeline, an air pump, a multi-layer filtering device, an agitator and a concentration measurement unit;

[0049] Among them, after receiving the precise concentration measurement instruction, the valve is opened, and the vacuum pump introduces the gas from the main channel into the independent detection pipeline. The gas entering the detection pipeline is filtered through a multi-layer filtering device to filter out particulate matter, water vapor and other impurities to ensure the reliability of subsequent measurement results. In order to ensure the uniform distribution of gas in the detection pipeline, the agitator installed in the detection pipeline stirs the filtered gas evenly to ensure that the gas in the detection pipeline is evenly mixed and uniformly distributed. After that, the concentration measurement unit uses the non-dispersive infrared measurement mode and the laser gas analysis measurement mode to measure the gas concentration parameters of the stirred gas in detail to obtain concentration measurement data.

[0050] In one embodiment, the concentration measurement unit has a concentration sensor integrated device and an environment compensation unit built in;

[0051] The concentration sensor integrated device comprises: a non-dispersive infrared sensor and a laser gas analysis device;

[0052] The non-dispersive infrared sensor works based on the characteristic that carbon dioxide molecules selectively absorb infrared light of a specific wavelength. When infrared light of a specific wavelength passes through a gas containing carbon dioxide, the carbon dioxide molecules absorb part of the infrared light, causing the light intensity to weaken. By detecting the change in the intensity of infrared light and combining it with the Lambert-Beer law, the concentration of carbon dioxide in the gas can be calculated.

[0053] Laser gas analysis devices measure the concentration by the interaction between laser and carbon dioxide molecules. By selecting a laser with a suitable wavelength, the interaction between the laser and carbon dioxide molecules produces specific optical effects, and by detecting these effects, the concentration of carbon dioxide can be accurately determined.

[0054] The concentration measurement unit is used to perform precise measurements of gas concentration parameters using a non-dispersive infrared sensor in a non-dispersive infrared measurement mode; and to perform measurements using a laser gas analysis device in a laser gas analysis measurement mode, and to perform environmental compensation on the data measured by the non-dispersive infrared sensor and the laser gas analysis device in combination with the environmental data measured in real time by the environmental compensation unit.

[0055] The concentration measurement unit can cover the gas concentration range of 0-100% through the concentration sensor integration device, and can accurately measure carbon dioxide gas at various concentration levels to meet the needs of different application scenarios. It meets the ISO14064 requirements for system resolution and sensitivity, ensures the accuracy and reliability of the measurement results, and can be used to accurately monitor and calculate carbon dioxide emissions.

[0056] Preferably, the environmental compensation unit adopts a three-in-one sensor integrated device, which can measure the temperature, humidity and pressure parameters of the filtered gas in real time. Changes in temperature, humidity and pressure will affect the measurement results of the non-dispersive infrared sensor and the laser gas analysis device. For example, temperature changes will change the thermal motion of gas molecules, thereby affecting the absorption of infrared light and the propagation of lasers; humidity may interfere with the sensor signal; pressure changes will change the density of the gas, thereby affecting the accuracy of the measurement. Provide the necessary environmental compensation data for concentration calibration. By acquiring environmental parameters in real time, the environmental compensation unit can adjust and correct the data measured by the non-dispersive infrared sensor and the laser gas analysis device, eliminate errors caused by environmental factors, and further improve the measurement accuracy.

[0057] In one embodiment, the precise flow measurement module 4 includes:

[0058] The ultrasonic flow measurement unit has an ultrasonic flowmeter and a temperature sensor built in. The measurement principle of the ultrasonic flowmeter is to measure the flow rate based on the principle that when ultrasonic waves propagate in a fluid, their propagation speed will change due to the influence of the fluid flow rate. When ultrasonic waves propagate in a gas, the propagation speeds of the downstream and upstream are different. By measuring parameters such as the time difference or phase difference of ultrasonic waves propagating in these two directions, combined with information such as the geometric dimensions of the pipeline, the gas flow rate can be calculated, and then the gas flow rate can be obtained. The temperature sensor monitors the temperature of the gas in real time. Because the temperature of the gas will affect the propagation speed of ultrasonic waves in it, temperature changes will cause the speed of sound to change, thereby affecting the accuracy of the flow measurement.

[0059] After receiving the precise flow measurement instruction, the ultrasonic flow measurement unit turns on the ultrasonic flow measurement mode, uses the ultrasonic flow meter to precisely measure the gas flow parameters, and uses the gas temperature monitored in real time by the temperature sensor to perform temperature compensation on the measured data to obtain ultrasonic flow measurement data; wherein, the real-time monitored gas temperature data is used to perform temperature compensation on the data measured by the ultrasonic flow meter. By establishing a relationship model between temperature and sound velocity, the flow measurement result is corrected according to the measured temperature value to eliminate the influence of temperature changes on the measurement result, ensuring that accurate flow measurement data can be obtained under different temperature conditions.

[0060] The thermal mass flow measurement unit has a built-in thermal mass flowmeter and an electromagnetic sensor. The measurement principle of the thermal mass flowmeter is to determine the mass flow rate of the gas by measuring the heat taken away when the gas flows through the heating element based on the principle of heat conduction. When the gas flows through the heating element, it will take away some heat, causing the temperature of the heating element to drop. By detecting the temperature change of the heating element and the input heating power and other parameters, the mass flow rate of the gas can be calculated. The electromagnetic sensor monitors the signal strength generated by the fluid flow rate in real time. When the gas flows in the pipeline, a certain flow rate will be generated in the pipeline, and the electromagnetic sensor can detect the signal related to the flow rate.

[0061] The thermal mass flow measurement unit turns on the thermal mass flow measurement mode after receiving the precise flow measurement instruction, uses the thermal mass flowmeter to precisely measure the gas flow parameters, and uses the signal strength generated by the fluid flow rate monitored in real time by the electromagnetic sensor to adjust the signal gain to obtain thermal mass flow measurement data; wherein, when the flow rate is lower than the set specific threshold, the system will automatically increase the signal gain. This is because under low flow rates, the signal strength detected by the electromagnetic sensor is weak, which may affect the accuracy and reliability of the measurement. By automatically increasing the signal gain, the clarity of the signal can be improved, making the measurement results more accurate. At the same time, the gain adjustment is based on real-time data feedback, and the system will continuously monitor the changes in the signal to avoid excessive amplification of the signal and cause signal distortion, thereby ensuring that continuous and reliable flow data can be provided.

[0062] The precision flow measurement module integrates a variety of advanced measurement technologies and equipment such as ultrasonic flowmeters, thermal mass flowmeters, temperature sensors and electromagnetic sensors. This integrated design enables the module to provide high-precision measurements under various flow rate conditions, and can accurately measure both low and high flow rates of gas. The module can meet the ISO 14064 requirements for system adaptability and stable operation in complex environments. Through functions such as real-time temperature compensation and signal gain adjustment, the module can maintain stable measurement performance under different environmental conditions such as temperature and flow rate, ensuring the accuracy and reliability of the measurement results, and providing reliable flow data support for the total carbon dioxide detection system.

[0063] In one embodiment, the information fusion module 2 includes:

[0064] The data acquisition unit is mainly responsible for receiving gas environment parameters from the environmental detection module. These parameters cover the temperature, humidity, pressure, flow rate, preliminary flow rate, concentration threshold and other information of the gas. Since different types of sensors in the environmental detection module 1 may output data in different formats, in order to ensure the consistency and accuracy of subsequent processing, the data acquisition unit 1 will convert the format of these data through a standardized algorithm. Through this standardized processing, a consistent data structure is provided for subsequent data processing, analysis and interaction with other modules, ensuring data consistency and meeting the strict requirements of ISO 14064 for data acquisition in terms of format and accuracy.

[0065] The instruction sending unit mainly sends precise concentration measurement instructions to the precise concentration measurement module 3 to inform it to adopt various concentration measurement modes for measurement; and sends precise flow measurement instructions to the precise flow measurement module 4 to inform it to adopt various flow measurement modes for measurement.

[0066] The data processing unit is the core processing part of the information fusion module 2. It conducts in-depth analysis and decision-making based on the gas environment parameters after the format conversion of the data acquisition unit. First, the optimal measurement mode of the current precise concentration measurement module 3 and the precise flow measurement module 4 is determined based on the gas environment parameters after the format conversion; then, the optimal measurement mode of the precise concentration measurement module 3 and the precise flow measurement module 4 is combined, and the concentration measurement data and flow measurement data involved in the calculation of the total amount of carbon dioxide are screened from the data fed back by the precise concentration measurement module 3 and the precise flow measurement module 4 to calculate the current total amount of carbon dioxide;

[0067] The data storage unit is responsible for data storage and management. It stores the calculated total amount of carbon dioxide and records the measurement data and calibration history in combination with blockchain technology. The application of blockchain technology ensures the authenticity and immutability of the data, because the data in the blockchain is recorded through a distributed ledger, and each modification of the data requires a complex consensus mechanism, which greatly improves the security and credibility of the data. In addition, the data storage unit also supports encryption technology, such as AES-256 encryption technology, to encrypt the stored data to prevent the data from being stolen or tampered with during storage and transmission. Through timestamp technology, the data storage unit can achieve accurate historical records and tracking, and provide detailed time information for subsequent data analysis and call. This design meets the requirements of ISO14064 for data integrity, traceability and verifiability, has strong anti-tampering capabilities, and can fully archive all relevant data.

[0068] The information fusion module 2 also has a communication function, which can transmit the processing results to external devices via wired (such as Ethernet, etc.) or wireless (such as Wi-Fi, Bluetooth, 4G / 5G, etc.) methods to achieve remote monitoring. In scenarios such as industrial production, operators can view the measurement results and related data of the total amount of carbon dioxide in real time through remote devices, and promptly detect and handle abnormal situations. At the same time, this communication function also meets the requirements of ISO 14064 for communication protocols, ensuring the accuracy and security of data during transmission, so that the system can effectively interact and integrate with external management systems, monitoring platforms, etc.

[0069] In a specific embodiment, the determining of the optimal measurement mode of the current precise concentration measurement module 3 and the precise flow measurement module 4 based on the gas environment parameters after format conversion includes:

[0070] The gas environment parameters and historical data after format conversion are input into the prediction model to obtain the flow prediction value and concentration prediction value. The prediction model here can be a regression model, a machine learning model, etc. It will predict the flow and concentration based on past data and current environmental parameters.

[0071] Based on the calibration algorithm, the flow calibration value and the concentration calibration value are calculated using the flow prediction value and the concentration prediction value as well as the flow measurement value and the concentration measurement value; wherein the gas flow rate and the gas concentration after the format conversion are used as the flow measurement value and the concentration measurement value respectively;

[0072] Specifically, the dynamic calibration algorithm is used to adjust the measured value in real time in combination with the neighborhood data. The formula is: calibration value = measured value + α × (predicted value - measured value). The measured value refers to the data directly measured by the sensor. The predicted value is the expected value obtained by regression model or other prediction technology based on historical data and current operating conditions. α is the adjustment coefficient, which is optimized and set based on experimental data and system performance requirements, and this setting must meet the requirements of ISO 14064 for data calibration.

[0073] The flow calibration value is compared with the non-dispersive infrared measurement mode threshold and the laser gas analysis measurement mode threshold in the precise concentration measurement mode threshold. According to the comparison results, the non-dispersive infrared measurement mode or the laser gas analysis measurement mode is determined to be the optimal measurement mode of the precise concentration measurement module; the concentration calibration value is compared with the ultrasonic flow measurement mode threshold and the thermal mass flow measurement mode threshold in the precise flow measurement mode threshold. According to the comparison results, the ultrasonic flow measurement mode or the thermal mass flow measurement mode is determined to be the optimal measurement mode of the precise flow measurement module.

[0074] The information fusion module 2 can perform real-time correction and data monitoring based on the collected information to ensure the continuity of the system and meet the requirements of ISO 14064 in terms of system continuous operation and self-diagnosis capabilities.

[0075] In a specific embodiment, the optimal measurement mode of the combination of the precise concentration measurement module 3 and the precise flow measurement module 4 is used to select the concentration measurement data and flow measurement data involved in the calculation of the total amount of carbon dioxide from the data fed back by the precise concentration measurement module 3 and the precise flow measurement module 4, and calculate the current total amount of carbon dioxide:

[0076] The non-dispersive infrared concentration measurement data and the laser gas analysis concentration measurement data fed back by the precise concentration measurement module 3 are compared, and the ultrasonic flow measurement data fed back by the precise flow measurement module are compared with the thermal mass flow measurement data to determine whether the concentration measurement data and the flow measurement data are abnormal; the two measurement data of the precise concentration measurement module 3 and the precise flow measurement module 4 come from two different measurement modes in which the precise concentration measurement module 3 and the precise flow measurement module 4 run in parallel, and the purpose of the comparison is to determine whether the data is abnormal. If the data difference obtained by the two measurement modes is within a reasonable range, then the data can be considered normal; if the difference exceeds the preset threshold, there may be a measurement abnormality. The two sets of data collected in parallel provide more reference information for the data processing unit, so that the data processing unit can more effectively detect and exclude abnormal data. Through the above-mentioned data comparison and abnormality detection mechanism, the system has a good self-diagnosis function. It can automatically discover problems that may occur during the measurement process, and take corresponding measures in time, such as issuing an alarm, adjusting the measurement mode, etc., to ensure the normal operation of the system and the accuracy of the measurement results.

[0077] In the absence of abnormalities, the total amount of carbon dioxide is calculated according to the concentration measurement data corresponding to the optimal measurement mode of the precise concentration measurement module and the flow measurement data corresponding to the optimal measurement mode of the precise flow measurement module;

[0078] Generally speaking, the total amount (mass) of carbon dioxide M can be calculated by parameters such as concentration, flow rate and time. Assuming that the concentration measurement data obtained above is C, the flow measurement data is Q, and the measurement time t and carbon dioxide density ρ are known, the density of carbon dioxide is ρ (unit: kg / m3), then the calculation formula is:

[0079]

[0080] Here multiply This is because the unit of concentration C is usually ppm (parts per million), which needs to be converted into decimal form.

[0081] In order to better describe the above-mentioned total amount of carbon dioxide detection system, it is now explained in conjunction with the following specific embodiments.

[0082] Example 1: A system for detecting the total amount of carbon dioxide in a carbon dioxide capture, utilization and storage process.

[0083] The total amount of carbon dioxide detection system includes: environmental detection module, information fusion module, precise concentration measurement module and precise flow measurement module, a total of four main parts. The devices and equipment involved in the system include: flow meter, concentration sensor, temperature sensor, humidity sensor, pressure sensor, data acquisition unit, data processing unit, data storage unit, air pump, stirrer, concentration sensor integrated device, flow meter integrated device and other devices and equipment.

[0084] like Figure 2 As shown, the specific implementation of the above device for measuring the total amount of carbon dioxide is as follows:

[0085] Step S01: Initialization of the environment detection module

[0086] The core components of the environmental detection module, such as the flow meter, concentration sensor, temperature sensor, humidity sensor and pressure sensor, are installed on the pipeline through which the gas flows to ensure that each sensor can accurately collect the environmental parameters of the gas.

[0087] Step S02: Information fusion module configuration

[0088] The data collected by the environmental detection module is transmitted to the data acquisition unit of the information fusion module through the communication interface; the data acquisition unit converts the format of the received data to ensure the consistency of the data; the instruction sending unit sends the precise concentration measurement instruction to the precise concentration measurement module and the precise flow measurement instruction to the precise flow measurement module; the data processing unit adopts a dynamic calibration algorithm combined with neighborhood data to adjust the measurement value in real time, and according to the preset logic judgment algorithm, dynamically analyzes the received real-time concentration and flow thresholds to determine the optimal measurement mode of the current precise concentration measurement module and the precise flow measurement module.

[0089] Step S03: Accurate concentration measurement module operation

[0090] The precise concentration measurement module receives the instruction from the information fusion module, and the module's vacuum pump starts to introduce the gas from the main channel into an independent detection pipeline; the gas passes through a multi-layer filtration device to filter out particulate matter, water vapor and other impurities, ensuring the reliability of subsequent measurement results; the agitator can ensure that the gas in the detection pipeline is evenly distributed, and the concentration sensor integrated device uses different detection modes for detection, covering a concentration range of 0 to 100%; the three-in-one sensor integrated device measures the temperature, humidity and pressure parameters of the filtered gas in real time, providing the necessary environmental compensation data for concentration calibration, further improving the measurement accuracy.

[0091] Step S04: Accurate flow measurement module operation

[0092] The precise flow measurement module receives the instruction from the information fusion module and uses the flow meter integrated device to detect different detection modes for high-precision measurement of gas flow. It achieves full coverage from low flow to high flow range; the temperature sensor and electromagnetic sensor collect temperature and signal strength for two detection modes to compensate, further improving the measurement accuracy.

[0093] Step S05: Information fusion module summary and calculation

[0094] The information fusion module will detect and eliminate abnormal data based on the concentration measurement data and flow measurement data fed back by the precise concentration measurement module and the precise flow measurement module, and determine the concentration measurement data and flow measurement data involved in the calculation of the total amount of carbon dioxide in combination with the optimal measurement mode of the precise concentration measurement module and the precise flow measurement module, calculate the current total amount of carbon dioxide, and the calculated total amount of carbon dioxide is stored through the data storage unit and transmitted to the external device wirelessly to realize remote monitoring and data analysis.

[0095] The device of this embodiment can achieve high-precision detection of the total amount of carbon dioxide in the carbon dioxide capture, utilization and storage process through the coordinated work of the environmental detection module, the information fusion module, the precise concentration measurement module, and the precise flow measurement module, adapt to complex projects, and provide reliable data support for the optimization of the carbon dioxide capture, utilization and storage process.

[0096] Similar to the principle of the above embodiment, the present invention provides a method for detecting the total amount of carbon dioxide.

[0097] The following provides specific embodiments in conjunction with the accompanying drawings:

[0098] like Figure 3 A schematic flow chart showing a method for detecting the total amount of carbon dioxide in an embodiment of the present invention.

[0099] The total amount of carbon dioxide detection system used in the above embodiment includes: an environment detection module, an information fusion module, a precise concentration measurement module and a precise flow measurement module. The method includes:

[0100] Step S1: Real-time monitoring of gas environment parameters through an environment detection module;

[0101] Step S2: the information fusion module sends a precise concentration measurement instruction and a precise flow measurement instruction to the precise concentration measurement module and the precise flow measurement module;

[0102] Step S3: After receiving the precise concentration measurement instruction and the precise flow measurement instruction, the precise concentration measurement module and the precise flow measurement module use the built-in multiple concentration measurement modes and the multiple flow measurement modes to perform precise measurements on the gas concentration parameters and the gas flow parameters, and feed back the concentration measurement data and the concentration measurement data to the information fusion module;

[0103] Step S4: The information fusion module analyzes the concentration and flow rate based on the monitored gas environment parameters, and calculates the total amount of carbon dioxide in combination with the concentration measurement data and flow measurement data fed back by the precise concentration measurement module and the precise flow measurement module to obtain the total amount of carbon dioxide calculation result.

[0104] Since the implementation principle of the method for detecting the total amount of carbon dioxide has been described in the above embodiments, it will not be repeated here.

[0105] The carbon dioxide total amount detection system provided in the embodiment of the present invention can be implemented on the terminal side or the server side. As for the hardware structure of the electronic terminal, please refer to Figure 4 , is an optional hardware structure diagram of an electronic terminal 1000 provided in an embodiment of the present invention. The terminal 1000 may be a mobile phone, a computer device, a tablet device, a personal digital processing device, a factory background processing device, etc. The terminal 1000 includes: at least one processor 1001, a memory 1002, at least one network interface 10010 and a user interface 1009. The various components in the device are coupled together through a bus system 1005. It can be understood that the bus system 1005 is used to realize the connection and communication between these components. In addition to the data bus, the bus system 1005 also includes a power bus, a control bus and a status signal bus. However, for the sake of clarity, in Figure 4 In the specification, various buses are labeled as bus systems.

[0106] The user interface 1009 may include a display, a keyboard, a mouse, a trackball, a click gun, keys, buttons, a touch pad or a touch screen.

[0107] It is understood that the memory 1002 can be a volatile memory or a non-volatile memory, and can also include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), which is used as an external cache. By way of exemplary but not limiting explanation, many forms of RAM are available, such as static random access memory (SRAM), synchronous static random access memory (SSRAM). The memory described in the embodiments of the present invention is intended to include but is not limited to these and any other suitable categories of memory.

[0108] The memory 1002 in the embodiment of the present invention is used to store various categories of data to support the operation of the terminal 1000. Examples of these data include: any executable program for operating on the terminal 1000, such as an operating system 10021 and an application 10022; the operating system 10021 includes various system programs, such as a framework layer, a core library layer, a driver layer, etc., for implementing various basic services and processing hardware-based tasks. The application 10022 may include various applications, such as a media player (MediaPlayer), a browser (Browser), etc., for implementing various application services. The total carbon dioxide detection system provided in the embodiment of the present invention may be included in the application 10022.

[0109] The method disclosed in the above embodiment of the present invention can be applied to the processor 1001, or implemented by the processor 1001. The processor 1001 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the hardware integrated logic circuit in the processor 1001 or the instruction in the form of software. The above processor 1001 may be a general processor, a digital signal processor (DSP, Digital Signal Processor), or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The processor 1001 can implement or execute the methods, steps and logic block diagrams disclosed in the embodiment of the present invention. The general processor 1001 may be a microprocessor or any conventional processor, etc. In combination with the steps of the accessory optimization method provided in the embodiment of the present invention, it can be directly embodied as a hardware decoding processor to execute, or it can be executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium, which is located in a memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0110] In an exemplary embodiment, the terminal 1000 may be implemented by one or more application specific integrated circuits (ASIC), DSP, programmable logic device (PLD), complex programmable logic device (CPLD) to execute the aforementioned method.

[0111] Those skilled in the art can understand that all or part of the steps of implementing the above-mentioned method embodiments can be completed by hardware related to the computer program. The aforementioned computer program can be stored in a computer-readable storage medium. When the program is executed, the steps of the above-mentioned method embodiments are executed; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk and other media that can store program codes.

[0112] In the embodiments provided in the present application, the computer readable and writable storage medium may include a read-only memory, a random access memory, an EEPROM, a CD-ROM or other optical disk storage device, a disk storage device or other magnetic storage device, a flash memory, a USB flash drive, a mobile hard disk, or any other medium that can be used to store a desired program code in the form of an instruction or data structure and can be accessed by a computer. In addition, any connection can be appropriately referred to as a computer-readable medium. For example, if the instruction is sent from a website, a server or other remote source using a coaxial cable, an optical fiber cable, a twisted pair, a digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwaves, the coaxial cable, optical fiber cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwaves are included in the definition of the medium. However, it should be understood that computer readable and writable storage media and data storage media do not include connections, carriers, signals, or other temporary media, but are intended to be non-temporary, tangible storage media. Disk and disc, as used in this application, includes compact disc (CD), laser disc, optical disc, digital versatile disc (DVD), floppy disk and Blu-ray disc where disks usually reproduce data magnetically, while discs reproduce data optically with lasers.

[0113] Compared with the prior art, the present invention has the following advantages:

[0114] 1. Dynamic ability to adapt to complex environments

[0115] Through the collaborative work of multiple modules and intelligent logical judgment, the present invention can further determine a more suitable working mode in real time according to the changes in environmental parameters such as gas flow, concentration, temperature and humidity. This mechanism enables the system to have strong multi-scenario adaptability, meet the requirements of ISO 14064 for system adaptability and stable operation in complex environments, maintain efficient and stable working state under complex and changeable environmental conditions, and ensure the continuity and accuracy of data collection, significantly improving the environmental adaptability of the detection system.

[0116] 2. High precision and low error performance

[0117] The present invention significantly reduces the errors in data acquisition and processing through optimized processing mechanisms and precise measurement technologies, ensures high accuracy of detection results, provides reliable guarantees for precise measurements in complex environments, and ensures high reliability and low error performance of the system in practical applications.

[0118] 3. Multi-parameter coordination and efficient processing

[0119] The present invention realizes the synchronous collection and coordinated processing of multiple environmental parameters, improves the detection efficiency and data fusion capability of the system, and can provide fast and accurate detection results in complex working conditions.

[0120] 4. Applicable to carbon emission trading system

[0121] The present invention can be used as a core metering device to provide accurate emission accounting. The system provides a calibration process and report generation function that meets the ISO14064 certification requirements, supporting policy makers and market participants to conduct accurate carbon emission trading and management.

[0122] In summary, the total amount of carbon dioxide detection system, method and terminal of the present invention monitors gas environment parameters in real time through the environmental detection module, and the information fusion module sends instructions to the precise concentration measurement module and the precise flow measurement module. After receiving the instructions, the two modules use a variety of measurement modes to perform fine measurements of gas concentration and flow, and feed the data back to the information fusion module. The information fusion module analyzes the concentration and flow based on environmental parameters, and calculates the total amount of carbon dioxide based on the feedback data. The present invention can adapt to changes in the gas environment in real time, realize precise environmental compensation and mode switching through intelligent algorithms, significantly improve measurement accuracy and data stability, and provide reliable data support and scientific basis for the optimization, monitoring and control decision-making of carbon dioxide capture, utilization and storage processes. Therefore, the present invention effectively overcomes the various shortcomings in the prior art and has a high industrial utilization value.

[0123] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by a person of ordinary skill in the art without departing from the spirit and technical ideas disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A total carbon dioxide detection system, characterized in that: The system comprises: an environment detection module, an information fusion module, a precise concentration measurement module and a precise flow measurement module; wherein the information fusion module is respectively connected to the environment detection module, the precise concentration measurement module and the precise flow measurement module; The environmental detection module is used to monitor the gas environment parameters in real time; The information fusion module is used to send precise concentration measurement instructions and precise flow measurement instructions to the precise concentration measurement module and the precise flow measurement module; it is also used to analyze the concentration and flow based on the gas environment parameters monitored by the environment detection module, and calculate the total amount of carbon dioxide in combination with the concentration measurement data and flow measurement data fed back by the precise concentration measurement module and the precise flow measurement module to obtain the total amount of carbon dioxide calculation result; The precise concentration measurement module is used to perform precise measurement of gas concentration parameters using multiple built-in concentration measurement modes after receiving the precise concentration measurement instruction, and feed back the concentration measurement data measured in each mode to the information fusion module; The precise flow measurement module is used to perform precise measurement of gas flow parameters using built-in multiple flow measurement modes after receiving the precise flow measurement instruction, and feed back the flow measurement data in each mode to the information fusion module.

2. The carbon dioxide total amount detection system according to claim 1, characterized in that: The environment detection module is used to monitor gas environment data in real time through a sensor device, and input a concentration measurement mode threshold corresponding to each concentration measurement mode and a flow measurement mode threshold corresponding to each flow measurement mode; Among them, the sensor device includes: a flow meter, a concentration sensor, a temperature sensor, a humidity sensor and a pressure sensor installed on the gas flow pipeline, which is used to monitor the gas flow parameters, gas concentration parameters, gas temperature parameters, gas humidity parameters and gas pressure parameters in real time.

3. The carbon dioxide total amount detection system according to claim 2, characterized in that: The information fusion module includes: A data acquisition unit, used to receive the gas environment parameters from the environment detection module and convert the data format through a standardized algorithm; An instruction sending unit, used for sending a precise concentration measurement instruction to the precise concentration measurement module and a precise flow measurement instruction to the precise flow measurement module; A data processing unit, used to determine the optimal measurement mode of the current precise concentration measurement module and the precise flow measurement module based on the gas environment parameters after format conversion; in combination with the optimal measurement modes of the precise concentration measurement module and the precise flow measurement module, filter the concentration measurement data and flow measurement data involved in the calculation of the total amount of carbon dioxide from the data fed back by the precise concentration measurement module and the precise flow measurement module, and calculate the current total amount of carbon dioxide; The data storage unit is used to store the calculated total amount of carbon dioxide.

4. The carbon dioxide total amount detection system according to claim 3, characterized in that: The precise concentration measurement module comprises: a valve installed on the detection pipeline, an air pump, a multi-layer filtering device, an agitator and a concentration measurement unit; Among them, after receiving the precise concentration measurement instruction, the valve is opened, and the vacuum pump introduces the gas from the main channel into an independent detection pipeline. The gas entering the detection pipeline is filtered through a multi-layer filtering device, and the filtered gas is stirred evenly by an agitator. Then, the concentration measurement unit uses a non-dispersive infrared measurement mode and a laser gas analysis measurement mode to measure the gas concentration parameters of the stirred gas in a precise manner to obtain concentration measurement data.

5. The carbon dioxide total amount detection system according to claim 4, characterized in that: The concentration measurement unit is built with a concentration sensor integrated device and an environmental compensation unit; the concentration sensor integrated device includes: a non-dispersive infrared sensor and a laser gas analysis device; The concentration measurement unit is used to perform fine measurement of gas concentration parameters using a non-dispersive infrared sensor in a non-dispersive infrared measurement mode, and to perform fine measurement of gas concentration parameters using a laser gas analysis device in a laser gas analysis measurement mode, and to perform environmental compensation on the data measured by the non-dispersive infrared sensor and the laser gas analysis device in combination with the environmental data measured in real time by the environmental compensation unit, so as to obtain non-dispersive infrared concentration measurement data and laser gas analysis concentration measurement data.

6. The carbon dioxide total amount detection system according to claim 5, characterized in that: The precise flow measurement module comprises: The ultrasonic flow measurement unit has an ultrasonic flow meter and a temperature sensor built in, and is used to start the ultrasonic flow measurement mode after receiving the precise flow measurement instruction, use the ultrasonic flow meter to precisely measure the gas flow parameters, and use the gas temperature monitored in real time by the temperature sensor to perform temperature compensation on the measured data to obtain ultrasonic flow measurement data; The thermal mass flow measurement unit has a built-in thermal mass flow meter and an electromagnetic sensor, which is used to start the thermal mass flow measurement mode after receiving the precise flow measurement instruction, use the thermal mass flow meter to accurately measure the gas flow parameters, and use the signal strength generated by the fluid flow rate monitored in real time by the electromagnetic sensor to adjust the signal gain to obtain thermal mass flow measurement data.

7. The carbon dioxide total amount detection system according to claim 6, characterized in that: The determining of the optimal measurement mode of the current precise concentration measurement module and the precise flow measurement module based on the gas environment parameters after format conversion includes: The gas environment parameters and historical data after format conversion are input into the prediction model to obtain the flow prediction value and concentration prediction value; Based on the calibration algorithm, the flow calibration value and the concentration calibration value are calculated using the flow prediction value and the concentration prediction value as well as the flow measurement value and the concentration measurement value; wherein the gas flow rate and the gas concentration after the format conversion are used as the flow measurement value and the concentration measurement value respectively; The flow calibration value is compared with the non-dispersive infrared measurement mode threshold and the laser gas analysis measurement mode threshold in the precise concentration measurement mode threshold to determine the optimal measurement mode of the precise concentration measurement module, and the concentration calibration value is compared with the ultrasonic flow measurement mode threshold and the thermal mass flow measurement mode threshold in the precise flow measurement mode threshold to determine the optimal measurement mode of the precise flow measurement module.

8. The carbon dioxide total amount detection system according to claim 1, characterized in that: The optimal measurement mode of the precise concentration measurement module and the precise flow measurement module is combined, and the concentration measurement data and flow measurement data involved in the calculation of the total amount of carbon dioxide are selected from the data fed back by the precise concentration measurement module and the precise flow measurement module, and the calculation of the current total amount of carbon dioxide includes: Compare the non-dispersive infrared concentration measurement data fed back by the precise concentration measurement module with the laser gas analysis concentration measurement data, and compare the ultrasonic flow measurement data fed back by the precise flow measurement module with the thermal mass flow measurement data, to determine whether the concentration measurement data and the flow measurement data are abnormal; In the absence of abnormalities, the total amount of carbon dioxide is calculated according to the concentration measurement data corresponding to the optimal measurement mode of the precise concentration measurement module and the flow measurement data corresponding to the optimal measurement mode of the precise flow measurement module.

9. A method for detecting the total amount of carbon dioxide, characterized in that: Applied to the total amount of carbon dioxide detection system, including: an environment detection module, an information fusion module, a precise concentration measurement module and a precise flow measurement module, the method includes: Real-time monitoring of gas environment parameters is performed through the environment detection module; The information fusion module sends a precise concentration measurement instruction and a precise flow measurement instruction to the precise concentration measurement module and the precise flow measurement module; After receiving the precise concentration measurement instruction and the precise flow measurement instruction, the precise concentration measurement module and the precise flow measurement module use the built-in multiple concentration measurement modes and the multiple flow measurement modes to perform precise measurements on the gas concentration parameters and the gas flow parameters, and feed back the concentration measurement data and the concentration measurement data to the information fusion module; The information fusion module analyzes the concentration and flow rate based on the monitored gas environment parameters, and calculates the total amount of carbon dioxide in combination with the concentration measurement data and flow measurement data fed back by the precise concentration measurement module and the precise flow measurement module to obtain the total amount of carbon dioxide calculation result.

10. An electronic terminal, characterized in that: include: one or more memories and one or more processors; The one or more memories are used to store computer programs; The one or more processors, connected to the memory, are configured to run the computer program to perform the method as claimed in claim 9.

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