Coal mine environment multi-parameter monitoring device based on digital twinning

Abstract

The utility model relates to a kind of coal mine environment multi-parameter monitoring devices based on digital twinning, including multiple parameter perception terminal, edge computing gateway and ground monitoring center;Edge computing gateway communication connection each parameter perception terminal and ground monitoring center;Each parameter perception terminal is set in mine intrinsic safety type explosion-proof shell, shell is equipped with multidirectional air inlet grid;Each parameter perception terminal includes acquisition unit, positioning unit and communication unit;The multiple sensor modules for acquiring the different parameter data of coal mine environment including acquisition unit;Positioning unit includes mine positioning module, for obtaining positioning data, to provide corresponding spatial location information for parameter data;Communication unit includes multiple communication modules, and multiple communication modules transmit all parameter data and positioning data to edge computing gateway;Edge computing gateway transmits the result information based on parameter data and positioning data to ground monitoring center.The present application can improve the monitoring effect of coal mine environment.

Description

Technical Field

[0001] This utility model belongs to the field of coal mining technology; specifically, it relates to a multi-parameter monitoring device for coal mine environment based on digital twins. Background Technology

[0002] The underground environment in coal mines is complex and variable, with various hazardous factors such as gas, dust, temperature, humidity, carbon monoxide, and wind speed. Real-time and accurate monitoring is crucial.

[0003] Existing coal mine environmental monitoring systems are mostly based on distributed sensors and monitoring hosts, resulting in fragmented data. They lack an intuitive, dynamic, and comprehensive understanding of the overall underground environment and are unable to fully monitor and predict the complex coal mine environment. Utility Model Content

[0004] The purpose of this invention is to provide a multi-parameter monitoring device for coal mine environment based on digital twins, so as to solve the problem that the existing technology cannot comprehensively monitor and predict the complex coal mine environment.

[0005] To address the aforementioned problems, the coal mine environment multi-parameter monitoring device based on digital twins involved in this utility model adopts the following technical solution:

[0006] The multi-parameter monitoring device for coal mine environment based on digital twins includes multiple parameter sensing terminals, an edge computing gateway, and a ground monitoring center; the edge computing gateway is communicatively connected to each parameter sensing terminal and the ground monitoring center; wherein, each parameter sensing terminal is installed in a mining intrinsically safe explosion-proof housing, and the housing is provided with a multi-directional air intake grid;

[0007] Each parameter sensing terminal includes a data acquisition unit, a positioning unit, and a communication unit;

[0008] The acquisition unit includes multiple sensor modules; different sensor modules are used to collect different parameter data of the coal mine environment.

[0009] The positioning unit includes a mining positioning module for acquiring positioning data to provide corresponding spatial location information for the parameter data;

[0010] The communication unit includes multiple communication modules, which use wired or wireless communication to transmit all the parameter data and the positioning data to the edge computing gateway;

[0011] The edge computing gateway transmits the parameter data and the result information of the positioning data to the ground monitoring center using wired or wireless communication.

[0012] In some embodiments, the multiple sensor modules include a gas sensor, a dust sensor, a temperature and humidity sensor, a CO sensor, a wind speed sensor, and a barometric pressure sensor.

[0013] In some implementations, the positioning module uses a UWB positioning tag or a Zigbee positioning tag.

[0014] In some implementations, the multiple communication modules include at least one of an industrial Ethernet interface, a 4G / 5G intrinsically safe mining module, and an RS485 communication interface, and each communication module supports wired or wireless communication.

[0015] In some embodiments, the parameter sensing terminal further includes a microprocessor, which is built into an intrinsically safe explosion-proof housing for mining; the microprocessor is used to filter the parameter data acquired by the acquisition unit.

[0016] In some implementations, the edge computing gateway includes an edge computing unit, a data receiving unit, and a local storage unit;

[0017] The data receiving unit is used to receive the parameter data and the positioning data transmitted by the communication unit;

[0018] The edge computing unit is used to process the parameter data and positioning data to obtain result information;

[0019] The local storage unit is used to store the parameter data, the positioning data, and / or the result information.

[0020] In some implementations, the edge computing unit maps the parameter data and the positioning data onto a pre-built three-dimensional coal mine base model to update the model state of the three-dimensional base model, which includes gas concentration color rendering and equipment operating status indicators.

[0021] In some implementations, the result information includes warning information, which includes location, data, and level.

[0022] The beneficial effects of this utility model are as follows:

[0023] This digital twin-based multi-parameter monitoring device for coal mine environments includes multiple parameter sensing terminals, an edge computing gateway, and a ground monitoring center. Each parameter sensing terminal is housed within a mine-use intrinsically safe explosion-proof enclosure, which has a multi-directional air intake grid. Each terminal includes a data acquisition unit, a positioning unit, and a communication unit. The acquisition unit includes various sensor modules for collecting different parameter data of the coal mine environment. The positioning unit includes a mine-use positioning module for acquiring positioning data to provide corresponding spatial location information for the parameter data. The communication unit includes various communication modules that transmit the results of all parameter data and positioning data to the edge computing gateway. The edge computing gateway then transmits the results of the parameter data to the ground monitoring center. This digital twin-based multi-parameter monitoring device for coal mine environments can comprehensively monitor and predict complex coal mine environments. Furthermore, the parameter sensing terminals integrate multiple sensors, positioning, and communication functions into a compact design, facilitating flexible deployment in different underground locations. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly described below:

[0025] Figure 1 This is a schematic diagram of a specific embodiment of the coal mine environment multi-parameter monitoring device based on digital twin of this utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the parameter sensing terminal of this utility model;

[0027] Figure 3 This is a schematic diagram of the edge computing gateway of this utility model. Detailed Implementation

[0028] To make the technical objectives, technical solutions, and beneficial effects of this utility model clearer, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only for explaining the invention and are not intended to limit the invention; that is, the described embodiments are merely some embodiments of the invention, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0029] In the following text, the terms "comprising," "having," and their cognates, which may be used in various embodiments of this utility model, are intended only to indicate a specific feature, number, step, operation, element, component, or combination thereof, and should not be construed as primarily excluding the presence of one or more other features, numbers, steps, operations, elements, components, or combinations thereof, or adding the possibility of one or more combinations thereof. Furthermore, the terms "first," "second," "third," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0030] Unless otherwise specified, all terms used herein (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which the various embodiments of this invention pertain. Terms (such as those defined in commonly used dictionaries) shall be interpreted as having the same meaning as in their contextual meaning in the relevant technical field and shall not be interpreted as having an idealized or overly formal meaning, unless clearly defined in the various embodiments of this invention.

[0031] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0032] With the development of information technology, especially the advancements in the Internet of Things, big data, and artificial intelligence, environmental monitoring systems are constantly evolving and upgrading. Digital twin technology is an emerging technological approach that achieves real-time monitoring and prediction of the actual environment by constructing a virtual mapping of the physical environment. Therefore, this invention applies digital twin technology to coal mine environmental monitoring. Through innovative hardware integration and data processing architecture, it tightly combines physical monitoring data with a virtual twin model to achieve comprehensive and immersive monitoring and early warning of the coal mine environment.

[0033] The following describes the digital twin-based multi-parameter monitoring device for coal mine environment.

[0034] Specific embodiments of the multi-parameter monitoring device for coal mine environment based on digital twins involved in this utility model are as follows: Figure 1 As shown, it includes multiple parameter sensing terminals, an edge computing gateway, and a ground monitoring center; each parameter sensing terminal is communicatively connected to the edge computing gateway, and the edge computing gateway is in turn communicatively connected to the ground monitoring center.

[0035] Each parameter sensing terminal is housed within an intrinsically safe explosion-proof enclosure for mining applications. The enclosure is equipped with a multi-directional air intake grille to ensure that ambient gas can enter uniformly, providing a good environment for each unit module within the parameter sensing terminal and ensuring the safety of electrical components. At the same time, the explosion-proof structural design, which complies with coal mine safety standards, ensures that each parameter sensing terminal operates stably in harsh environments.

[0036] In some embodiments, such as Figure 2 As shown, the parameter sensing terminal includes a data acquisition unit, a positioning unit, and a communication unit.

[0037] The acquisition unit includes various sensor modules; different sensor modules are used to collect different parameter data of the coal mine environment; for example, the various sensor modules include gas sensors, dust sensors, temperature and humidity sensors, CO sensors, wind speed sensors, and air pressure sensors. Each sensor module adopts a modular plug-and-play design, which facilitates quick maintenance and replacement during inspection.

[0038] The positioning unit includes a mining positioning module for acquiring positioning data to provide corresponding spatial location information for the parameter data. For example, the mining positioning module uses a UWB positioning tag to provide accurate spatial location information for the collected parameter data, thus providing a data foundation for building a spatial digital twin. Alternatively, the mining positioning module can also use a Zigbee positioning tag.

[0039] The communication unit includes multiple communication modules, which transmit all the parameter data and positioning data to the edge computing gateway. For example, the communication modules can use an industrial Ethernet interface or a 4G / 5G intrinsically safe mining module. Alternatively, RS485, LoRa, or WIFI can be used to support uploading the collected parameter data wirelessly or via wired connection.

[0040] The parameter sensing terminal of this utility model also includes a microprocessor, which is built into an intrinsically safe explosion-proof housing for mining. The microprocessor is responsible for the preliminary acquisition, filtering and intrinsically safe processing of sensor data to improve the accuracy of parameter data and positioning data.

[0041] The parameter sensing terminal of this utility model integrates multiple sensors, positioning, and communication into one unit. It is compact in size and easy to deploy flexibly in different locations underground. In addition, it adopts an explosion-proof structure design that meets coal mine safety standards, which can ensure stable operation in harsh environments.

[0042] The edge computing gateway of this invention is used to process the parameter data and positioning data, and transmit the processed result information to the ground monitoring center, so that the ground monitoring center can monitor in real time.

[0043] The edge computing gateway of this utility model is installed in a mine explosion-proof and intrinsically safe chassis and deployed in an underground coal mine substation. As another implementation method, the edge computing gateway can also be deployed in a refuge chamber or an area close to the sensing terminal group.

[0044] In the embodiments of this utility model, such as Figure 3 As shown, the edge computing gateway includes an edge computing unit, a data receiving unit, and a local storage unit.

[0045] In some embodiments, the data receiving unit is used to receive the parameter data and positioning data uploaded by the communication unit; the data receiving unit receives the parameter data and positioning data from multiple sensing terminals.

[0046] In some implementations, the edge computing unit is used to process the parameter data and positioning data to obtain result information;

[0047] For example, edge computing units use industrial-grade embedded computers or ARM motherboards;

[0048] The process by which the edge computing unit processes the parameter data and positioning data to obtain result information includes:

[0049] S1, the edge computing gateway preprocesses and fuses the parameter data and positioning data;

[0050] For example, parameter data and positioning data from different parameter sensing terminals are synchronized in time, aligned in space, redundantly removed, and initially fused.

[0051] S2, the digital twin engine of the coal mine generates a three-dimensional basic model of the coal mine;

[0052] In some embodiments, a large-scale 3D engine is run, which has a built-in or receives a 3D coal mine basic model corresponding to the roadways and equipment on the ground; for example, the 3D engine is a WebGL-based or lightweight game engine trimmed version.

[0053] S3, update the three-dimensional coal mine basic model based on the preprocessed parameter data and positioning data;

[0054] In this embodiment of the invention, the preprocessed parameter data and positioning data are mapped onto the three-dimensional coal mine basic model in real time to drive the model state, which includes gas concentration color rendering and equipment operation status identification.

[0055] S4, based on the updated three-dimensional coal mine basic model, analyzes and provides early warning results.

[0056] In some embodiments, localized intelligent analysis and early warning are performed based on the updated 3D coal mine basic model. For example, a built-in rule engine and lightweight AI model (such as threshold-based logical judgment and simple anomaly detection algorithm) are used to analyze the fused data in real time. Once an anomaly is detected (such as excessive gas and low wind speed in a certain area), an audible and visual alarm signal is immediately generated locally (connected to the underground audible and visual alarm through the alarm output interface of the gateway) and a structured early warning information is sent to the ground through the communication module. The early warning information includes at least the location, data, and level, so that staff can quickly identify and grasp the dangerous situation.

[0057] In some implementations, the local storage unit is used to store the parameter data, the location data, and the result information. The data stored in the local storage unit can be used for situation tracking, early warning, inspection, and maintenance.

[0058] In this embodiment of the utility model, the ground monitoring center deploys a server to run a full-scale digital twin platform, receiving fused data (i.e., parameter data and positioning data) and early warning information from the edge gateway, in order to provide more powerful three-dimensional visualization, historical data backtracking, advanced analysis (such as diffusion simulation and risk prediction) and management decision support functions.

[0059] The multiple parameter sensing terminals of this invention are connected to a nearby edge computing gateway via wired (RS485 / Ethernet) or wireless (LoRa / WiFi) means; the edge computing gateway is connected to the ground monitoring center server via mining industrial Ethernet or fiber optic ring network to realize centralized monitoring based on digital twin; at the same time, the edge computing gateway has a local alarm output interface, which can directly drive the intrinsically safe audible and visual alarm device in the mine.

[0060] The beneficial effects of this utility model are:

[0061] 1. High integration and flexible deployment: The parameter sensing terminal integrates multiple sensors, positioning, and communication functions into one compact unit, facilitating flexible deployment in different underground locations. The edge gateway integrates data processing and a lightweight twin engine, reducing reliance on real-time performance from the ground control center.

[0062] 2. Strong real-time performance and rapid response: Edge computing gateways enable local data fusion, twin model-driven operation, and basic early warning, greatly reducing the delay from data collection to early warning, and are especially suitable for rapid response to emergencies.

[0063] 3. Visual and intuitive, comprehensive situational awareness: Through a lightweight 3D engine, the spatial distribution and dynamic changes of downhole environmental parameters are displayed in real time on the local / surface, allowing managers to intuitively grasp the overall environmental situation and quickly locate problem areas.

[0064] 4. Intelligent early warning with high accuracy: Based on multi-parameter fusion analysis and spatial correlation (combined with location information), localized intelligent early warning is carried out. Compared with single threshold alarm, it significantly reduces the false alarm and missed alarm rates, and the early warning information is more specific (location, correlation parameters).

[0065] 5. Reliable structure, adaptable to underground environment: Both the sensing terminal and the edge gateway adopt an explosion-proof structural design that meets coal mine safety standards, ensuring stable operation in harsh environments.

[0066] 6. Reduce the burden on the ground center: The edge side completes a large amount of data processing and basic applications, effectively reducing the network transmission bandwidth requirements and the computing load on the ground server.

[0067] 7. Easy to maintain: The sensor is modularly designed and easy to replace; the edge gateway can be remotely managed and upgraded.

[0068] Finally, it should be noted that the above embodiments are only for illustration and not for limiting the technical solutions of this utility model. Any equivalent substitutions and modifications or partial substitutions that do not depart from the spirit and scope of this utility model should be covered within the scope of protection of the claims of this utility model.

Claims

1. A coal mine environment multi-parameter monitoring device based on digital twinning, characterized in that, It includes multiple parameter sensing terminals, an edge computing gateway, and a ground monitoring center; the edge computing gateway is communicatively connected to each parameter sensing terminal and the ground monitoring center; wherein each parameter sensing terminal is housed in a mining intrinsically safe explosion-proof enclosure, and the enclosure is provided with a multi-directional air intake grid; Each parameter sensing terminal includes a data acquisition unit, a positioning unit, and a communication unit; The acquisition unit includes multiple sensor modules; different sensor modules are used to collect different parameter data of the coal mine environment. The positioning unit includes a mining positioning module for acquiring positioning data to provide corresponding spatial location information for the parameter data; The communication unit includes multiple communication modules, which use wired or wireless communication to transmit all the parameter data and the positioning data to the edge computing gateway; The edge computing gateway transmits the result information based on the parameter data and the positioning data to the ground monitoring center using wired or wireless communication.

2. The digital-twin-based multi-parameter monitoring device for coal mine environment according to claim 1, characterized in that, The various sensor modules include a gas sensor, a dust sensor, a temperature and humidity sensor, a CO sensor, a wind speed sensor, and a barometric pressure sensor.

3. The digital-twin-based multi-parameter monitoring device for coal mine environment according to claim 1, characterized in that, The positioning module uses UWB positioning tags or Zigbee positioning tags.

4. The digital-twin-based multi-parameter monitoring device for coal mine environment according to claim 1, characterized in that, The various communication modules include at least one of an industrial Ethernet interface, a 4G / 5G intrinsically safe mining module, and an RS485 communication interface, and each communication module supports wired or wireless communication.

5. The digital-twin-based multi-parameter monitoring device for coal mine environment according to claim 1, characterized in that, The parameter sensing terminal also includes a microprocessor, which is built into an intrinsically safe explosion-proof housing for mining; the microprocessor is used to filter the parameter data acquired by the acquisition unit.

6. The digital-twin-based multi-parameter monitoring device for coal mine environment according to claim 1, characterized in that, The edge computing gateway includes an edge computing unit, a data receiving unit, and a local storage unit; The data receiving unit is used to receive the parameter data and the positioning data transmitted by the communication unit; The edge computing unit is used to process the parameter data and positioning data to obtain result information; The local storage unit is used to store the parameter data, the positioning data, and / or the result information.

7. The digital-twin-based multi-parameter monitoring device for coal mine environment according to claim 6, characterized in that, The edge computing unit maps the parameter data and the positioning data onto a pre-built three-dimensional coal mine basic model to update the model state of the three-dimensional coal mine basic model, which includes gas concentration color rendering and equipment operation status indicators.

8. The digital-twin-based multi-parameter monitoring device for coal mine environment according to claim 6, characterized in that, The result information includes early warning information, which includes location, data, and level.

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