Mine risk perception early warning system

Abstract

The application discloses a mine risk perception early warning system, comprising a mobile monitoring terminal, a data interaction station and a central analysis platform. The mobile monitoring terminal is used for collecting monitoring data in a working environment and configuring a time stamp for each monitoring data. When the link quality of the communication link between the mobile monitoring terminal and the central analysis platform meets a preset condition, the monitoring data is transmitted to the central analysis platform as real-time monitoring data. When the link quality does not meet the preset condition, the monitoring data is stored in a local storage as temporary storage monitoring data. The data interaction station is used for reading the temporary storage monitoring data temporarily stored in the local storage of the mobile monitoring terminal and transmitting the temporary storage monitoring data to the central analysis platform. The central analysis platform is used for receiving the real-time monitoring data and the temporary storage monitoring data, and splicing the real-time monitoring data and the temporary storage monitoring data from the same mobile monitoring terminal into a continuous data sequence in the order of time stamps, so as to perform risk assessment on the working environment.

Description

Technical Field

[0001] This application relates to the field of mine safety production and monitoring technology, specifically to a mine risk perception and early warning system. Background Technology

[0002] Precise and continuous monitoring of the microenvironment of individual workers in underground coal mines is of vital importance for preventing major accidents such as gas asphyxiation, explosions, and fires, and for ensuring the safety of miners' lives.

[0003] In related technologies, coal mine monitoring systems adopt a fixed monitoring method. This fixed monitoring method cannot capture local risks that change dynamically with the movement of personnel. This causes workers to enter monitoring blind spots or be exposed to the early stages of risk accumulation without being warned in time, affecting the safety of workers' lives. Summary of the Invention

[0004] This application provides a mine risk perception and early warning system, which solves the problems of blind spots in fixed monitoring points, making it impossible to track local risks in mobile operations, and the inability to achieve early risk assessment with a single threshold alarm by setting up mobile monitoring terminals, data interaction stations and a central analysis platform.

[0005] This application provides a mine risk perception and early warning system, including: a mobile monitoring terminal, a data interaction station, and a central analysis platform. The mobile monitoring terminal collects monitoring data from the working environment and assigns a timestamp to each piece of monitoring data. When the link quality between the mobile monitoring terminal and the central analysis platform meets preset conditions, the monitoring data is transmitted to the central analysis platform as real-time monitoring data. When the link quality does not meet the preset conditions, the monitoring data is stored as temporary monitoring data in a local memory. The data interaction station is located in the mine area and is used to read the temporary monitoring data stored in the local memory of the mobile monitoring terminal and transmit it to the central analysis platform. The central analysis platform receives the real-time monitoring data transmitted by the mobile monitoring terminal and the temporary monitoring data transmitted by the data interaction station, and concatenates the real-time monitoring data and the temporary monitoring data from the same mobile monitoring terminal into a continuous data sequence according to the timestamp order. This continuous data sequence is used to perform risk assessment on the working environment.

[0006] In one possible implementation, the central analysis platform includes: a spatiotemporal fusion database, which receives the real-time monitoring data and the temporarily stored monitoring data, and stores them after establishing an index according to the identity identifier of the mobile monitoring terminal and the timestamp; an intelligent analysis module, which retrieves the continuous data sequence of the same mobile monitoring terminal from the spatiotemporal fusion database according to the index, and determines the rate of change and trend of change of gas concentration data in the continuous data sequence within a continuous time window; and a multi-level early warning decision module, which receives the rate of change and the trend of change output by the intelligent analysis module, generates a first-level early warning information when the gas concentration data exceeds a first threshold, generates a second-level early warning information when the rate of change exceeds a second threshold, and generates a third-level early warning information when the trend of change matches a preset trend.

[0007] In one possible implementation, the mobile monitoring terminal includes an alarm module; the central analysis platform sends the first-level warning information, the second-level warning information, and the third-level warning information to the mobile monitoring terminal, and the mobile monitoring terminal drives the alarm module to issue a first audible and visual alarm information of the corresponding level according to the level of the first-level warning information, the second-level warning information, and the third-level warning information.

[0008] In one possible implementation, the mobile monitoring terminal further includes: a housing, the interior of which forms a cavity; an air intake grid disposed on the housing, the air intake grid connecting the cavity to the external environment; a sensor assembly disposed within the cavity, with the gas collection port of each sensor in the sensor assembly facing the air intake grid; and a main control module disposed within the sealed cavity, the main control module being electrically connected to each of the sensors, and using the different types of gas concentration data collected by the sensor assembly as the monitoring data.

[0009] In one possible implementation, the mobile monitoring terminal further includes: a positioning and communication integration module disposed in the cavity, the positioning and communication integration module being electrically connected to the main control module; the main control module is further configured to acquire the location data of the mobile monitoring terminal through the positioning and communication integration module, use the location data as the monitoring data, and associate each location data with each gas concentration data.

[0010] In one possible implementation, the main control module is further configured to: determine the wireless signal strength between the positioning and communication integration module and the central analysis platform; when the wireless signal strength is greater than or equal to a preset strength threshold, determine that the link quality meets the preset condition; when the wireless signal strength is less than the preset strength threshold, determine that the link quality does not meet the preset condition.

[0011] In one possible implementation, the mobile monitoring terminal further includes an alarm module, and the main control module is further configured to: drive the alarm module to issue a second audible and visual alarm message when the gas concentration data collected by the sensor component exceeds the locally stored alarm threshold.

[0012] In one possible implementation, the data interaction station is a honeycomb data collection and charging device cabinet, comprising: a cabinet body; at least one charging compartment disposed in the cabinet body, the charging compartment being used to accommodate the mobile monitoring terminal; and a data contact disposed within the charging compartment. When the mobile monitoring terminal is placed into the charging compartment, the data contact makes physical contact with the charging contact of the mobile monitoring terminal, and the data interaction station reads the temporary monitoring data in the local storage through the data contact.

[0013] In one possible implementation, the mobile monitoring terminal further includes a first identity recognition sensing area, and the data interaction station further includes a second identity recognition sensing area; when the first identity recognition sensing area touches the second identity recognition sensing area, the data interaction station identifies the identity of the mobile monitoring terminal.

[0014] In one possible implementation, the data interaction station further includes: a status indicator light disposed in the charging compartment, the status indicator light being used to display the working status of the charging compartment, displaying a first prompt message when the data contact physically contacts the charging contact of the mobile monitoring terminal, displaying a second prompt message when the data contact finishes reading the temporary monitoring data in the local memory, and displaying a third prompt message when the mobile monitoring terminal has finished charging.

[0015] The mine risk perception and early warning system provided in this application, through the coordinated operation of mobile monitoring terminals, data interaction stations, and a central analysis platform, achieves dynamic monitoring of the underground environment by relying on mobile monitoring terminals deployed with personnel, thus solving the problems of blind spots in monitoring at fixed monitoring points and the inability to track local risks during mobile operations. The central analysis platform uses timestamps to stitch together real-time monitoring data and temporary data to form a complete and continuous data sequence, and conducts risk assessments of the working environment, solving the problem that single threshold alarms cannot achieve early risk assessment, and identifying potential risks in advance. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the 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.

[0017] Figure 1 One of the structural schematic diagrams of the mobile monitoring terminal of the mine risk perception and early warning system provided in the embodiments of this application; Figure 2 A second schematic diagram of the structure of the mobile monitoring terminal of the mine risk perception and early warning system provided in this application embodiment; Figure 3 The third schematic diagram of the structure of the mobile monitoring terminal of the mine risk perception and early warning system provided in the embodiments of this application; Figure 4 The structure and schematic diagram of the data interaction station of the mine risk perception and early warning system provided in the embodiments of this application; Figure 5 This is a schematic diagram of the structure of the mine risk perception and early warning system provided in the embodiments of this application.

[0018] Explanation of reference numerals in the attached figures: 1-Mobile monitoring terminal; 11-Local memory; 12-Alarm module; 121-Alarm unit; 122-Alarm light; 123-Buzzer unit; 124-Buzzer; 13-Housing; 14-Air intake grille; 15-Sensor assembly; 151-Methane sensor; 152-Oxygen sensor; 153-Carbon monoxide sensor; 16-Main control module; 17-Positioning and communication integrated module; 18-Charging contact; 19-Battery; 110-First identification sensing area; 11-Confirmation button; 112-Display module; 113-Display window; 114-Power button; 2-Data interaction station; 21-Cabinet; 22-Charging compartment; 23-Second identification sensing area; 24-Network interface; 25-Control screen; 26-Status indicator light; 27-Power interface; 3-Central analysis platform; 31-Spatiotemporal fusion database; 32-Intelligent analysis module; 33-Multi-level early warning decision module; 34-Feedback closed-loop management module; 35-Visualization platform. Detailed Implementation

[0019] The technical solutions in 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, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0020] The terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0021] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different locations and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0022] Coal is the cornerstone of energy security. The sustainable development of the coal industry is directly related to the healthy operation of the economy and energy security. Ensuring the safety of underground workers is essentially about protecting the most core and vulnerable human resources of the coal industry. Achieving precise and continuous monitoring of the micro-environment of individual underground workers is of paramount importance for preventing major accidents such as gas asphyxiation, explosions, and fires, and for protecting the lives of miners.

[0023] In related technologies, the field of dynamic risk perception and early warning in underground mining faces several limitations: First, the monitoring mode is static. Underground environmental monitoring relies on a fixed sensor network installed on the tunnel walls, which cannot cover all areas underground, such as the working face and temporary tunnels, resulting in blind spots and failing to reflect the real-time environmental conditions of the actual breathing area of ​​workers. Second, the data link is fragile. Existing portable detectors with wireless transmission capabilities often suffer from signal attenuation or interruption in complex underground environments, leading to data loss and compromising the integrity and continuity of monitoring data. Third, the early warning capability is rudimentary. Most early warning systems only support simple fixed threshold over-limit alarms, lacking analysis of gas concentration trends, rates of change, and correlations with time and monitoring location, making it difficult to achieve early risk identification and graded early warning. Fourth, equipment management is inefficient. Charging and data retrieval of mobile monitoring terminals rely on manual labor, which is inefficient and makes it difficult to ensure that portable detectors are always in optimal working condition.

[0024] like Figure 5 and Figure 3 As shown, a mine risk perception and early warning system according to the first aspect of this application includes: a mobile monitoring terminal 1, a data interaction station 2, and a central analysis platform 3.

[0025] Mobile monitoring terminal 1 can collect real-time monitoring data of the mine working environment and assign a unique timestamp to each data point. The monitoring data includes gas concentration data and the location data of mobile monitoring terminal 1. Mobile monitoring terminal 1 solves the problem of blind spots in monitoring areas where fixed sensor networks cannot cover all areas such as mining faces and temporary roadways.

[0026] Mobile monitoring terminal 1 can also monitor the link quality of its communication link with the central analysis platform 3 in real time. When the link quality meets the standard, mobile monitoring terminal 1 directly uploads the monitoring data to the central analysis platform 3 in the form of real-time monitoring data. When the link quality does not meet the standard, mobile monitoring terminal 1 automatically stores the monitoring data as temporary monitoring data in the local storage 11 of mobile monitoring terminal 1 to avoid data loss and solve the problems of monitoring data interruption and loss caused by communication blind spots and wireless signal fluctuations in underground mines.

[0027] Data exchange station 2 can be deployed in the mine roadway area. As an underground data transfer node, data exchange station 2 can actively read the temporary monitoring data cached in the local storage 11 of mobile monitoring terminal 1 and upload it to the central analysis platform 3, providing the central analysis platform 3 with complete monitoring data. This ensures the accuracy of the risk assessment results of the central analysis platform 3 and solves the problem of low efficiency in manually collecting monitoring data.

[0028] The central analysis platform 3 can receive real-time monitoring data directly transmitted from the mobile monitoring terminal 1 and temporarily stored monitoring data forwarded by the data interaction station 2. The central analysis platform 3 can concatenate the real-time monitoring data and temporarily stored monitoring data from the same mobile monitoring terminal 1 into a continuous data sequence according to timestamps, and conduct mine operation environment risk assessment based on this continuous data sequence. Mine operation environment risk assessment includes identifying potential risk characteristics such as abnormal trends in gas concentration data and instantaneous change rates. By concatenating monitoring data into a complete continuous data sequence, the problem of data gaps during network outages can be solved, ensuring the completeness and accuracy of subsequent risk assessments.

[0029] Thus, the mine risk perception and early warning system provided in this application, through mobile monitoring terminal 1, data interaction station 2, and central analysis platform 3, realizes the entire process of full-area data collection of the mine environment, real-time transmission of monitoring data when connected to the network, local temporary storage of monitoring data when disconnected from the network, and monitoring data splicing and risk assessment. By converting monitoring data into a continuous data sequence for risk assessment, it solves the problem that coal mine monitoring systems only support simple fixed threshold over-limit alarms, cannot identify potential risks, and therefore cannot provide early warnings.

[0030] In some embodiments, such as Figure 5 As shown, the central analysis platform 3 includes a spatiotemporal fusion database 31, an intelligent analysis module 32, and a multi-level early warning decision module 33.

[0031] The spatiotemporal fusion database 31 can receive real-time monitoring data and temporary monitoring data, and then classify and store the real-time monitoring data and temporary monitoring data after establishing an index with the identity of the mobile monitoring terminal 1 and the data timestamp, so as to realize the rapid retrieval, accurate traceability and unified management of monitoring data in the mine operation environment, and provide a high-quality, structured data source for the intelligent analysis module 32.

[0032] The intelligent analysis module 32 can retrieve the continuous data sequence of the same mobile monitoring terminal 1 from the spatiotemporal fusion database 31 according to the index, extract the continuous time window, calculate the rate of change and trend of change of gas concentration data, realize the risk identification of abnormal change trend and sudden change rate of gas concentration data, and thus identify potential risks in the mining area in advance.

[0033] The multi-level early warning decision module 33 can receive the calculation results of the rate of change and the trend of change. The multi-level early warning decision module 33 is equipped with three levels of early warning triggering logic: a first-level early warning message is generated when the gas concentration value exceeds the first threshold; a second-level early warning message is generated when the gas concentration change rate exceeds the second threshold; and a third-level early warning message is generated when the gas concentration change trend matches a preset trend. The first threshold is determined based on the operating area, historical gas concentration values, and the downhole production stage. The second threshold is also determined based on the operating area, historical gas concentration values, and the downhole production stage. The preset trend is determined based on the concentration change trend of normal historical gas concentration data. Each level of early warning information includes the risk type, location, level, and recommended measures. This three-level graded early warning mechanism provides tiered early warnings from three dimensions: instantaneous exceedance, mutation rate, and long-term trend. It can distinguish between general hazards, sudden hazards, and potential evolving hazards, providing clear early warning levels and explicit priority for handling. By comparing the trend of gas concentration changes with the preset dangerous trends, early hidden dangers such as gas concentration values ​​exceeding the first threshold, gas concentration change rate exceeding the second threshold, and abnormal overall gas concentration change trends can be identified, thus enabling early identification of potential risks and improving the comprehensiveness and accuracy of the mine risk perception and early warning system.

[0034] In some embodiments, such as Figure 3 As shown, the mobile monitoring terminal 1 includes an alarm module 12.

[0035] After generating Level 1, Level 2, and Level 3 early warning information, the central analysis platform 3 transmits the warning information at each level to the corresponding mobile monitoring terminal 1 with the corresponding identification via communication links. Upon receiving the warning instructions at each level, the mobile monitoring terminal 1 drives the alarm module 12 according to the level of the warning instruction, issuing a first audible and visual alarm with different light colors, flashing frequencies, buzzer modes, or volumes, thus achieving graded audible and visual alarms. Underground workers can intuitively distinguish the warning levels through the audible and visual alarms, quickly assess the severity of the risk, and take corresponding evacuation, investigation, and monitoring measures. The alarm module 12 transmits the warning information generated by the central analysis platform 3 to the field terminals, enabling real-time risk notification to on-site personnel and preventing a disconnect between the warning information from the central analysis platform 3 and the actual situation.

[0036] In some embodiments, such as Figure 1 and 3 As shown, the alarm module 12 includes an alarm unit 121 and a buzzer unit 123. The alarm unit 121 provides a stable current to drive the alarm light 122, which is electrically connected to the alarm unit 121, and controls its illumination, extinguishing, and color switching according to alarm commands. The buzzer unit 123 provides a specific signal to drive the buzzer 124, which is electrically connected to the buzzer unit 123, and controls its buzzing mode or volume according to alarm commands. This allows downhole workers to make intuitive judgments about early warning commands.

[0037] In some embodiments, such as Figure 1 As shown, the mobile monitoring terminal 1 includes a confirmation key 111. After confirming the warning information at each level, the personnel underground can send a warning information confirmation signal through the confirmation key 111. If the risk is confirmed by the on-site verification by the personnel underground, and the risk is handled, a valid warning confirmation signal is reported through the confirmation key 111 of the mobile monitoring terminal 1. If there is no safety hazard after on-site verification by the personnel underground, it is determined to be a false alarm, and a valid warning confirmation signal is reported through the confirmation key 111 of the mobile monitoring terminal 1. In this way, by confirming the warning information at each level through the mobile monitoring terminal 1, the warning information at each level can be verified, which facilitates the multi-level warning decision module 33 to correct and improve the three-level warning triggering logic, and reduces the probability of false alarms and missed alarms at each level.

[0038] In some embodiments, such as Figure 5As shown, the central analysis platform 3 also includes a feedback closed-loop management module 34. This module collects confirmation signals from the mobile monitoring terminal 1 for each level of early warning information, as well as manual annotations and correction appeals from ground dispatchers regarding missed and false early warning information from the multi-level early warning decision module 33. Based on the received information, the feedback closed-loop management module 34 evaluates and optimizes the three-level early warning triggering logic of the multi-level early warning decision module 33. This addresses the problem of inaccurate early warnings in mine risk perception and early warning systems.

[0039] In some embodiments, such as Figure 5 As shown, the central analysis platform 3 also includes a visualization platform 35. The visualization platform 35 is communicatively connected to the mobile monitoring terminal 1. The visualization platform 35 can display in real time the dynamic distribution of underground workers, the environmental situation in various underground areas, statistics of early warning information at all levels, and the online status of the mobile monitoring terminal 1, providing workers with a global and intuitive situational awareness and decision support.

[0040] In some embodiments, such as Figure 1 and Figure 3 As shown, the mobile monitoring terminal 1 also includes a housing 13, an air intake grille 14, a sensor assembly 15, and a main control module 16.

[0041] The housing 13 has an internal cavity. This cavity meets intrinsically safe explosion-proof requirements. The cavity can protect all internal electronic components of the mobile monitoring terminal 1, is suitable for harsh working conditions in mines, and can extend the service life of the mobile monitoring terminal 1.

[0042] The air intake grille 14 is embedded in the surface of the housing 13, which can connect the cavity with the external working environment of the mine, thereby enabling the gas from the external working environment of the mine to enter the cavity uniformly and stably. At the same time, the air intake grille 14 can prevent larger particles from entering.

[0043] Sensor assemblies 15 are installed inside the cavity. The gas collection ports of all sensors are directly facing the air inlet grid 14, so that all sensors can collect the gas concentration in the external working environment and avoid monitoring distortion caused by dead airflow.

[0044] Sensor assembly 15 includes a methane sensor 151, a carbon monoxide sensor 153, and an oxygen sensor 152. The methane sensor 151 monitors the concentration of methane gas in the external working environment of the mine. The carbon monoxide sensor 153 monitors the concentration of carbon monoxide gas in the external working environment of the mine. The oxygen sensor 152 monitors the concentration of oxygen gas in the external working environment of the mine.

[0045] The main control module 16 is built into the cavity and is electrically connected to each sensor. The main control module 16 can aggregate the various gas concentration data collected by each sensor and use it as monitoring data.

[0046] In some embodiments, such as Figure 3 As shown, the mobile monitoring terminal 1 also includes a positioning and communication integration module 17.

[0047] The positioning and communication integration module 17 is housed within the cavity. The positioning and communication integration module 17 is electrically connected to the main control module 16. The main control module 16 uses this module to acquire real-time location data of the mobile monitoring terminal 1 downhole. Location data is also part of the monitoring data; the main control module 16 can correlate the location data with gas concentration data at corresponding timestamps. This dual correlation of location and time in the monitoring data facilitates the central analysis platform 3 in tracing the source of potential hazards and delineating dangerous areas, providing locational basis for emergency rescue and hazard investigation.

[0048] In some embodiments, the main control module 16 verifies the wireless signal strength between the positioning and communication integration module 17 and the central analysis platform 3 in real time. A preset strength threshold is used as the judgment criterion: when the wireless signal strength is greater than or equal to the preset strength threshold, the link quality of the communication link is determined to meet the preset conditions, and the main control module 16 transmits the monitoring data as real-time monitoring data to the central analysis platform 3; when the wireless signal strength is less than the preset strength threshold, the link quality is determined to not meet the preset conditions, and the main control module 16 stores the monitoring data as temporary monitoring data in the local memory 11. In this way, the mobile monitoring terminal 1 achieves real-time uploading and local temporary storage of monitoring data, solving the problem of easy data loss when the underground signal is unstable. Using wireless signal strength as the judgment criterion for link quality is logically simple, easy to implement in hardware, and adaptable to the actual working conditions of underground wireless communication.

[0049] In some embodiments, the mobile monitoring terminal 1 locally presets various gas alarm thresholds, which are independently stored locally in the main control module 16. The sensor component 15 collects gas concentration data in real time, and the main control module 16 compares the real-time collected gas concentration data with the local alarm thresholds in real time. When the gas concentration data collected by the sensor component 15 exceeds the locally stored alarm threshold, the alarm module 12 is driven to issue a second audible and visual alarm. In this way, the mine risk perception and early warning system can achieve local autonomous alarm in the absence of network or offline conditions, and can still provide timely alarms in extreme scenarios with no signal. At the same time, the local alarm and the hierarchical early warning from the central analysis platform 3 can improve mine safety.

[0050] In some embodiments, such as Figure 3 As shown, the mobile monitoring terminal 1 also includes a display module 112. The display module 112 is electrically connected to the main control module 16. The display module 112 can receive monitoring data sent by the main control module 16 and drive the screen of the display module 112 to display monitoring data, mobile monitoring device status, sensor component 15 status, first audible and visual alarm information, and second audible and visual alarm information in digital, graphical, or textual form.

[0051] In some embodiments, such as Figure 1 As shown, a display window 113 is provided above the screen of the display module 112. The display window 113 can protect the screen of the display module 112 from dust and scratches.

[0052] In some embodiments, such as Figure 1 As shown, the mobile monitoring terminal 1 also includes a power button 114. The power button 114 is located on the housing 13. The power button 114 is used to control the power on and off of the battery 19 of the mobile monitoring terminal 1. The signal from the power button 114 can be directly transmitted to the main control module 16 and executed by the main control module 16.

[0053] In some embodiments, such as Figure 2 and 4 As shown, data interaction station 2 is a honeycomb-type data collection and charging device cabinet. Data interaction station 2 includes a cabinet 21, at least one charging compartment 22, and data contacts.

[0054] Cabinet 21 is the main functional carrier of the honeycomb data collection and charging device cabinet.

[0055] The cabinet 21 is divided into multiple independent charging compartments 22. Each charging compartment 22 can accommodate one mobile monitoring terminal 1. The honeycomb-style multi-charging compartment design 22 can accommodate multiple mobile monitoring terminals 1 for centralized charging at the same time, solving the problem of relying on manual charging for mobile monitoring terminals 1.

[0056] The mobile monitoring terminal 1 is equipped with a charging contact 18. The charging contact 18 is connected to the battery 19 of the mobile monitoring terminal 1. The battery 19 provides operating power to all electronic components of the mobile monitoring terminal 1 and is connected to the main control module 16. The main control module 16 can receive the power information reported by the battery 19.

[0057] Each charging compartment 22 has a built-in dedicated data contact. After the mobile monitoring terminal 1 is placed in the charging compartment 22, the charging contact 18 of the mobile monitoring terminal 1 makes physical contact with the data contact inside the charging compartment 22. Charging of the mobile monitoring terminal 1 is achieved through this physical contact. Simultaneously, a data channel is established based on this physical contact. The data exchange station 2 reads the temporary monitoring data stored in the local memory 11 of the mobile monitoring terminal 1 and then uploads it to the central analysis platform 3. While the data exchange station 2 is reading the temporary monitoring data from the local memory 11 of the mobile monitoring terminal 1, the charging compartment 22 can charge the mobile monitoring terminal 1. Using physical data contacts to read data is unaffected by interference from underground wireless signals, ensuring stable uploading of temporary monitoring data. Furthermore, the simultaneous charging and data transmission of the data exchange station 2 reduces investment in underground supporting facilities and saves space in the underground roadway layout.

[0058] In some embodiments, such as Figure 2 As shown, the mobile monitoring terminal 1 is equipped with a first identity recognition sensing area 110, and the data interaction station 2 is equipped with a corresponding second identity recognition sensing area 23. When the mobile monitoring terminal 1 is brought close to and touches the second identity recognition sensing area 23, the data interaction station 2 automatically reads the unique identifier of the mobile monitoring terminal 1 through radio frequency identification, completing identity binding and matching, and realizing automatic, contactless identity recognition and matching. Only after successful identity recognition can the data interaction station 2 allow the charging compartment 22 to open and read the temporary data of the mobile monitoring terminal 1, achieving one-to-one data correspondence, preventing data confusion between different mobile monitoring terminals 1, and preventing unauthorized terminals from arbitrarily accessing the data interaction station 2 to read and upload data.

[0059] In some embodiments, such as Figure 4 As shown, the data exchange station 2 also includes a network interface 24. The network interface 24 is located in the cabinet 21. The network interface 24 is connected to the ground-based industrial ring network. The network interface 24 serves as a communication channel for high-speed data exchange between the data exchange station 2 and the central analysis platform 3. Temporary monitoring data from the mobile monitoring terminal 1 can be uploaded through the network interface 24.

[0060] In some embodiments, the data interaction station 2 also includes a control screen 25. The control screen 25 is the human-machine interface of the data interaction station 2, which can centrally display the status of all charging compartments 22, the list of mobile monitoring terminals 1, the progress of temporary data upload, alarm information of the data interaction station 2, etc., and provides touch control to remove the mobile monitoring terminal 1, allowing staff to set parameters, perform manual operations (such as forced calibration of mobile monitoring terminal 1, remote restart of mobile monitoring terminal 1), and view system logs, etc.

[0061] In some embodiments, staff can swipe their cards to touch the second identity recognition sensor area 23 and control the large screen 25 to perform advanced settings and maintenance operations on the data interaction station 2, thereby enhancing the security management of the data interaction station 2.

[0062] In some embodiments, the data interaction station 2 further includes a status indicator light 26.

[0063] Each charging compartment 22 is equipped with an independent status indicator light 26, displaying three different notification messages according to the workflow: The first notification message is displayed when the mobile terminal is placed in the charging compartment 22 and the data contact physically contacts the charging contact 18 of the mobile monitoring terminal 1; the second notification message is displayed when the data contact finishes reading the temporary monitoring data from the local memory 11; and the third notification message is displayed when the mobile monitoring terminal 1 has finished charging. The first notification message can be photoelectric information. The colors, flashing frequencies, and flashing states of the photoelectric information for the first, second, and third notification messages are different. These notification messages visually display the entire process of contact connection, data transmission completion, and charging completion, allowing staff to quickly determine if the process is normal and improving maintenance efficiency.

[0064] In some embodiments, in addition to the three status displays mentioned above, the status indicator 26 also displays four types of prompts: a fourth prompt when the data contact reads temporary monitoring data from the local memory 11; a fifth prompt when the mobile monitoring terminal 1 is charging; a sixth prompt when the mobile monitoring terminal 1 is removed from the charging compartment 22; and a seventh prompt when the mobile monitoring terminal 1 is charging malfunctioning or the data contact is reading temporary monitoring data malfunctioning. In this way, each process of placing the mobile monitoring terminal 1 into the charging compartment 22 can be displayed via the status indicator 26, improving the efficiency of staff in identifying the charging and data transmission status of the mobile monitoring terminal 1 and quickly locating abnormal faults such as poor contact or reading failure.

[0065] In some embodiments, the data exchange station 2 further includes a power interface 27. The power interface 27 can be connected to a power source to provide a stable and reliable power supply to all electronic components of the data exchange station 2.

[0066] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A mine risk perception and early warning system, characterized in that, The mine risk perception and early warning system includes a mobile monitoring terminal, a data exchange station, and a central analysis platform. The mobile monitoring terminal is used to collect monitoring data in the working environment and configure a timestamp for each monitoring data. When the link quality of the communication link between the mobile monitoring terminal and the central analysis platform meets the preset conditions, the monitoring data is transmitted to the central analysis platform as real-time monitoring data. When the link quality does not meet the preset conditions, the monitoring data is stored in the local memory as temporary monitoring data. The data interaction station is located in the mine area and is used to read the temporarily stored monitoring data in the local storage of the mobile monitoring terminal and transmit it to the central analysis platform. The central analysis platform is used to receive the real-time monitoring data transmitted by the mobile monitoring terminal and the temporary monitoring data transmitted by the data interaction station, and to concatenate the real-time monitoring data and the temporary monitoring data from the same mobile monitoring terminal into a continuous data sequence according to the timestamp order. The continuous data sequence is used to perform risk assessment on the working environment.

2. The mine risk perception and early warning system according to claims 1 to 1, characterized in that, The central analysis platform includes: A spatiotemporal fusion database is used to receive the real-time monitoring data and the temporary monitoring data, and to store them after establishing an index according to the identity identifier of the mobile monitoring terminal and the timestamp; The intelligent analysis module is used to retrieve the continuous data sequence of the same mobile monitoring terminal from the spatiotemporal fusion database according to the index, and determine the rate of change and trend of gas concentration data in the continuous data sequence within a continuous time window; A multi-level early warning decision module is used to receive the rate of change and the trend of change output by the intelligent analysis module. When the gas concentration data exceeds a first threshold, a first-level early warning message is generated; when the rate of change exceeds a second threshold, a second-level early warning message is generated; and when the trend of change matches a preset trend, a third-level early warning message is generated.

3. The mine risk perception and early warning system according to claim 2, characterized in that, The mobile monitoring terminal includes: Alarm module; The central analysis platform sends the first-level warning information, the second-level warning information, and the third-level warning information to the mobile monitoring terminal. The mobile monitoring terminal drives the alarm module to issue the corresponding level of the first-level warning information, the second-level warning information, and the third-level warning information.

4. The mine risk perception and early warning system according to claim 1, characterized in that, The mobile monitoring terminal also includes: A housing, wherein a cavity is formed inside the housing; An air intake grille is disposed on the housing, and the air intake grille connects the cavity to the external environment; A sensor assembly is disposed within the cavity, with the gas collection port of each sensor in the sensor assembly facing the air intake grid; The main control module is located inside the sealed cavity. The main control module is electrically connected to the sensors and uses the concentration data of different types of gases collected by the sensor components as the monitoring data.

5. The mine risk perception and early warning system according to claim 4, characterized in that, The mobile monitoring terminal also includes: A positioning and communication integration module is disposed in the cavity, and the positioning and communication integration module is electrically connected to the main control module; The main control module is also used to obtain the location data of the mobile monitoring terminal through the positioning and communication integration module, use the location data as the monitoring data, and associate each location data with each gas concentration data.

6. The mine risk perception and early warning system according to claim 5, characterized in that, The main control module is also used for: The wireless signal strength between the positioning and communication integration module and the central analysis platform is determined; when the wireless signal strength is greater than or equal to a preset strength threshold, the link quality is determined to meet the preset condition; when the wireless signal strength is less than the preset strength threshold, the link quality is determined to not meet the preset condition.

7. The mine risk perception and early warning system according to claim 4, characterized in that, The mobile monitoring terminal also includes an alarm module, and the main control module is further used for: When the gas concentration data collected by the sensor component exceeds the locally stored alarm threshold, the alarm module is driven to issue a second audible and visual alarm.

8. The mine risk perception and early warning system according to any one of claims 1 to 7, characterized in that, The data interaction station is a honeycomb-type data collection and charging device cabinet, including: Cabinet; At least one charging compartment is provided in the cabinet, the charging compartment being used to house the mobile monitoring terminal; A data contact is located inside the charging compartment. When the mobile monitoring terminal is placed inside the charging compartment, the data contact makes physical contact with the charging contact of the mobile monitoring terminal, and the data interaction station reads the temporary monitoring data in the local storage through the data contact.

9. The mine risk perception and early warning system according to any one of claims 1 to 7, characterized in that, The mobile monitoring terminal further includes a first identity recognition sensing area, and the data interaction station further includes a second identity recognition sensing area; When the first identity recognition sensing area touches the second identity recognition sensing area, the data interaction station identifies the identity of the mobile monitoring terminal.

10. The mine risk perception and early warning system according to claim 8, characterized in that, The data exchange station also includes: A status indicator light is provided in the charging compartment. The status indicator light is used to display the working status of the charging compartment. When the data contact is in physical contact with the charging contact of the mobile monitoring terminal, a first prompt message is displayed. When the data contact finishes reading the temporary monitoring data in the local memory, a second prompt message is displayed. When the mobile monitoring terminal is fully charged, a third prompt message is displayed.

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