Intelligent monitoring and evaluation system for methane key emission source

Abstract

This utility model discloses an intelligent monitoring and assessment system for key methane emission sources. The system includes a mobile observation module, a drone concentration observation module, a methane emission intensity estimation module, a methane emission reduction assessment module, and a field-based enhanced observation and testing support unit. Through multi-platform collaborative monitoring, a combination of coarse and fine-grained monitoring methods, and intelligent data processing and assessment, the system achieves rapid and accurate identification of methane emission sources and analysis of their emission reduction potential. It is suitable for methane emission monitoring and management in areas such as oil and gas fields and landfills.

Description

Technical Field

[0001] This utility model relates to the field of environmental monitoring technology, and in particular to an intelligent monitoring and assessment system for key methane emission sources. Background Technology

[0002] Methane is a significant greenhouse gas, with a global warming potential dozens of times greater than that of carbon dioxide on recent timescales, significantly impacting global climate change. Currently, methane emission monitoring primarily utilizes fixed-site ground monitoring and satellite remote sensing equipment, such as ground monitoring stations and handheld detection instruments. These long-term monitoring devices are deployed at specific locations, using high-precision sensors to continuously measure methane concentrations in the air. However, these monitoring systems have several drawbacks: firstly, their monitoring range is limited, with fixed stations only covering a small surrounding area, making it difficult to effectively monitor remote or inaccessible emission sources; secondly, the limited number of stations makes it difficult to represent the emission characteristics of the entire region, leading to data bias, incomplete data, and an inability to simultaneously acquire multiple types of data, thus failing to accurately reflect the spatiotemporal variations of methane emissions; furthermore, their response speed is slow, making it difficult to promptly detect and implement measures in the face of sudden emission events. This is particularly problematic for key emission sources that are widely distributed and exhibit significant differences in emission intensity, such as rice paddies and livestock farms in agriculture, coal mining, oil and gas production and transportation in industry, and landfills.

[0003] Satellite remote sensing equipment can continuously monitor the globe or large areas without geographical limitations, covering remote and hard-to-reach regions. It also offers data continuity and long-term coverage with a fast response time. However, satellite remote sensing typically has low spatial resolution, making it difficult to accurately identify small-scale emission sources, such as small farms or small industrial facilities. Furthermore, satellite remote sensing data is subject to errors and uncertainties due to factors such as atmospheric conditions and sensor performance. The high cost of satellite launch and operation, as well as data acquisition and processing, limits its widespread application.

[0004] Currently, there is also a type of drone monitoring equipment. Drones can be quickly deployed to designated areas, are not limited by terrain, and can easily reach remote, complex, or dangerous areas, such as mountains, wetlands, and offshore platforms. Drones have significant advantages in methane emission monitoring, especially in terms of flexibility and high-resolution monitoring. However, drones have limited endurance, with single flight times typically being short, ranging from a few minutes to a few hours, which limits the continuity and coverage of their monitoring.

[0005] In summary, current methane emission monitoring equipment has many limitations and cannot meet the needs of comprehensive, accurate, and real-time monitoring. Although various devices have unique advantages in methane emission monitoring, they also have some limitations, requiring the combination of other methods to overcome the shortcomings of single monitoring methods. There is an urgent need for an integrated monitoring system that can integrate multiple platforms, intelligently estimate and evaluate data, and achieve large-scale, high-precision, real-time dynamic monitoring. Utility Model Content

[0006] The purpose of this invention is to address the various problems existing in existing methane monitoring technologies by proposing an intelligent monitoring and assessment system for key methane emission sources. This system enables multi-dimensional, rapid, and intelligent monitoring and assessment of methane emissions. The core feature is the use of a combined coarse and fine approach for intelligent monitoring and assessment of methane emission sources, utilizing drones for detailed monitoring of methane concentrations in key areas.

[0007] Specifically, this application provides an intelligent monitoring and assessment system for key methane emission sources, which consists of five core modules: a mobile observation module, a UAV concentration observation module, a methane emission intensity estimation module, a methane emission reduction assessment module, and a field enhanced observation and test support unit, which together realize intelligent monitoring of methane emissions.

[0008] The specific module settings are as follows: The mobile observation module includes a vehicle-mounted methane concentration sensor, a GPS positioning unit, a data acquisition unit, and a processing unit, which is used to collect methane concentration along a preset route and record location information. Using the aforementioned mobile observation module, a preliminary investigation of methane concentration is conducted, and the generated methane concentration distribution is transmitted to the ground control center via a 5G / 4G network. Based on the methane concentration distribution, the ground control center selects key areas for investigation.

[0009] Among them, the methane emission intensity estimation module and the methane emission reduction assessment module are set up at the ground control The center uses specialized software for data fusion, model calculation, and evaluation report generation.

[0010] The UAV concentration observation module includes a UAV platform, an airborne methane sensor, a meteorological sensor, and image acquisition equipment. It is used to conduct detailed aerial monitoring of ground emission sources based on key investigation areas sent by the ground control center.

[0011] The UAV concentration observation module performs further concentration analysis based on the key investigation areas sent by the ground control center. Based on the key investigation areas, it generates a UAV data collection route map and plans the UAV data collection parameters (collection frequency, collection points) and the UAV flight path.

[0012] The methane emission intensity estimation module estimates the methane emission intensity of the emission source based on the observation data obtained from the mobile observation module and the UAV concentration observation module, combined with the atmospheric diffusion model. The methane emission reduction assessment module is used to assess the emission reduction potential based on the estimated methane emission intensity of emission sources and generate an emission reduction recommendation report; The field enhanced observation test support unit includes a mini weather station, a portable automatic calibration cabin, and portable power supply and data transmission equipment, providing equipment support and guarantee for field observation.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention innovatively integrates a mobile observation module, a UAV concentration observation module, a methane emission intensity estimation module, a methane emission reduction assessment module, and a field-based enhanced observation and test support unit. Leveraging the relatively accurate monitoring data from UAVs, it employs a mobile observation module for large-scale measurements, while the UAV performs localized, detailed monitoring of key areas. This combined coarse and fine-grained monitoring improves the detection range and measurement accuracy. Furthermore, through the intelligent estimation and assessment functions of the ground control center, a comprehensive and high-precision methane emission monitoring and assessment system is constructed. Specifically: 1. Wide monitoring range: By comprehensively utilizing mobile mobile observation modules and UAV concentration observation modules, it can cover the entire monitoring area from the ground to the air, effectively breaking through the limitations of traditional fixed monitoring stations, and realizing comprehensive monitoring of key methane emission areas such as oil fields, natural gas fields, and landfills, ensuring no blind spots; 2. Fast response speed: With the help of advanced drone technology and mobile monitoring platforms, it can be rapidly deployed to designated areas in a very short time to respond to sudden methane leaks, providing a valuable time window for emergency response and accident control, and significantly improving the timeliness and flexibility of monitoring. 3. High data accuracy: The drone is equipped with a high-precision methane sensor, which can accurately capture minute changes in methane concentration and generate high-resolution emission intensity distribution, providing reliable data support for accurate assessment of methane emissions and effectively improving the scientificity and credibility of monitoring data; 4. The estimation data is highly accurate. The methane emission intensity estimation module has an objective function set up. Based on multiple experimental simulations and actual observation data, the optimal selection of estimation results is achieved through multiple iterations. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Figure 1 This is a schematic diagram of the system structure of this utility model; Figure 2 This is a schematic diagram of the mobile mobile observation module of this utility model; Figure 3 This is a schematic diagram of the UAV concentration observation module of this utility model; Detailed Implementation

[0015] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0016] This utility model embodiment provides an intelligent monitoring and assessment system for key methane emission sources, combined with... Figure 1 As can be seen, the specific module settings are as follows: 1. Mobile mobile observation module, combined with Figure 2 It includes an on-board methane concentration sensor, a GPS positioning unit, a data acquisition unit, and a processing unit, used to collect methane concentration and record location information along a preset route.

[0017] Specifically, the mobile mobile monitoring module can be a mobile mobile monitoring vehicle, which is equipped with an on-board methane concentration sensor. It can be used in combination with a pump-suction laser methane detector and a top-mounted telemetry laser methane detector. The pump-suction laser methane detector is installed at the front of the mobile mobile monitoring module and close to the ground to facilitate direct extraction of ambient air samples. The top-mounted telemetry laser methane detector is installed directly above the mobile mobile monitoring module for long-distance detection, realizing comprehensive monitoring of methane concentration.

[0018] The GPS positioning unit can perform positioning and, combined with path location coordinates, record and analyze real-time monitoring gas concentration data.

[0019] The data acquisition unit collects meteorological parameters in real time. These meteorological parameters include key parameters such as wind speed, wind direction, temperature, and air pressure.

[0020] The processing unit can replan or adjust the path based on meteorological parameters and concentration monitoring data, combined with the GPS positioning unit, to better monitor methane concentration; and can generate monitoring records and methane concentration distribution.

[0021] Using the aforementioned mobile observation module, a preliminary investigation of methane concentration is conducted, and the generated methane concentration distribution is transmitted to the ground control center via a 5G / 4G network. Based on the methane concentration distribution, the ground control center selects key areas for investigation.

[0022] 2. UAV concentration observation module, combined with Figure 3 It includes a drone platform, airborne methane sensor, weather sensor and image acquisition equipment, used to conduct detailed aerial monitoring of ground emission sources based on key investigation areas sent by the ground control center.

[0023] The UAV concentration observation module performs further concentration analysis based on the key investigation areas sent by the ground control center. Based on these key investigation areas, it generates a UAV data collection route map and plans the UAV data collection parameters (collection frequency, collection points) and the UAV flight path.

[0024] The drone is equipped with a lightweight airborne methane sensor and camera. It performs a detailed scan of key investigation areas according to a preset data collection route map to obtain methane concentration distribution data at different altitudes in different key investigation areas. The methane concentration distribution data can be transmitted to the ground control center via 4G / 5G network.

[0025] The airborne methane sensor is a methane sensor using optical or chemical sensor technology.

[0026] The meteorological sensor monitors and records the meteorological parameters of the gas collection area in real time.

[0027] 3. Methane emission intensity estimation module: Based on the observation data obtained from the mobile observation module and the UAV concentration observation module, and combined with the atmospheric diffusion model, the module estimates the methane emission intensity of the emission source.

[0028] 4. Methane emission reduction assessment module, used to assess emission reduction potential based on estimated methane emission intensity of emission sources and generate emission reduction recommendation reports.

[0029] Among them, the methane emission intensity estimation module and the methane emission reduction assessment module are set up at the ground control The center uses specialized software for data fusion, model calculation, and evaluation report generation.

[0030] 5. Field enhanced observation and test support unit, including mini weather station, portable automatic calibration cabin, and portable power supply and data transmission equipment, to provide equipment support and guarantee for field observation.

[0031] The field support unit provides equipment transportation, power supply and communication support to ensure the stable operation of the system in complex environments. The field enhanced observation test support unit includes a portable power supply, a data communication module and an equipment protective case.

[0032] Although preferred embodiments of the present application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the embodiments of the present application.

Claims

1. A smart monitoring and assessment system for key methane emission sources, characterized in that, Includes the following modules: The mobile observation module is used to collect methane concentration and record location information along a preset route; The UAV concentration observation module is used to conduct detailed aerial monitoring of ground emission sources based on key investigation areas sent by the ground control center; The methane emission intensity estimation module estimates the methane emission intensity of the emission source based on the observation data obtained from the mobile observation module and the UAV concentration observation module. The methane emission reduction assessment module is used to assess the emission reduction potential based on the estimated methane emission intensity of emission sources and generate an emission reduction recommendation report; The field enhanced observation test support module provides equipment support and assurance for field observation.

2. The intelligent monitoring and assessment system for key methane emission sources according to claim 1, characterized in that, The mobile monitoring module may include a vehicle-mounted methane concentration sensor, a GPS positioning unit, a data acquisition unit, and a processing unit.

3. The intelligent monitoring and assessment system for key methane emission sources according to claim 1, characterized in that, The UAV concentration observation module includes a UAV platform, an airborne methane sensor, a meteorological sensor, and image acquisition equipment.

4. The intelligent monitoring and assessment system for key methane emission sources according to claim 3, characterized in that, The airborne methane sensor is an optical or chemical sensor technology methane sensor, equipped with a high-definition camera, and the methane concentration data can be transmitted to the ground control center via 4G / 5G network.

5. The intelligent monitoring and assessment system for key methane emission sources according to claim 1, characterized in that, The methane emission intensity estimation module and the methane emission reduction assessment module are located in the ground control center and are used for data fusion, visualization and equipment scheduling.

6. The intelligent monitoring and assessment system for key methane emission sources according to claim 1, characterized in that, The field enhanced observation test support module includes a miniature weather station, a portable automatic calibration cabin, and portable power supply and data transmission equipment.

7. The intelligent monitoring and assessment system for key methane emission sources according to claim 6, characterized in that, The field enhanced observation test support module includes an equipment protection box.

8. The intelligent monitoring and assessment system for key methane emission sources according to claim 2, characterized in that, The vehicle-mounted methane concentration sensor can be used in combination with a pump-suction laser methane detector and a top-mounted remote laser methane detector.

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