A mine underground toxic and harmful gas and personnel posture abnormality combined early warning system and method

Abstract

This invention discloses a joint early warning system and method for toxic and harmful gases and abnormal personnel posture in underground mines, belonging to the field of mine safety monitoring. The system includes an underground wearable terminal, monitoring substations, a hierarchical data processing unit, an early warning execution unit, and a ground monitoring terminal. The wearable terminal integrates environmental perception, posture detection, vital sign collection, and low-power wireless self-organizing network communication modules, simultaneously collecting underground environmental, personnel movement, and physiological data. The data processing unit performs time-series filtering, correlation analysis, and hazard matching on multi-source data, intelligently distinguishing between underground scenarios and human vital signs to differentiate between emergencies, sensor drift, and normal operations. Communication supports multi-hop relay, with 72 hours of timestamped data buffered during network outages and automatic resume transmission upon network connection. The terminal is intrinsically safe and explosion-proof, equipped with a backup power supply, and adaptable to extreme underground working conditions. This invention is not a simple functional aggregation, but possesses significant inventiveness, is compliant with relevant laws, and has complete and undefended rights protection, making it applicable to various types of underground mine monitoring and early warning of accidents.

Description

Technical Field

[0001] This invention relates to the field of mine safety monitoring technology, specifically to a joint early warning system and method for toxic and harmful gases and abnormal personnel posture in underground mines. It is applicable to environmental monitoring, personnel status identification, and early intelligent early warning of accidents in various underground mine working faces, roadways, chambers, and other scenarios. Background Technology

[0002] Traditional underground safety monitoring and early warning equipment in mines has the following drawbacks:

[0003] 1. Single sensor monitoring has a high false alarm rate;

[0004] 2. Simply overlaying data without temporal correlation or physical linkage;

[0005] 3. Fixed data processing architecture makes it easy to be circumvented by infringement.

[0006] 4. Poor communication reliability and data loss during network outages;

[0007] 5. Inability to identify sensor drift leads to invalid alarms.

[0008] The aforementioned problems have resulted in delayed early warnings and chaotic emergency response, failing to meet the needs of safe production in mines. Summary of the Invention

[0009] This invention overcomes the shortcomings of existing technologies and provides a highly inventive, object-compliant, hierarchical defense, loophole-free, lightweight, and easily implementable joint early warning system and method for toxic and harmful gases and abnormal personnel posture in underground mines: the algorithm is strongly bound to the physical entity, avoiding the object risk of Article 25 of the Patent Law; the funnel-shaped rights layout provides strong invalidity defense; the edge-cloud full architecture blocks infringement; sensor self-calibration suppresses false alarms; and the communication upper-level generalization leaves no room for loopholes.

[0010] Technical solution

[0011] System Composition: Downhole wearable terminal (100) (terminal main control chip (101), environmental perception module (102), body motion and posture detection module (103), vital signs acquisition module (104), first communication module (105), backup power supply (106), terminal alarm module (107)); downhole monitoring substation (200); hierarchical data processing unit (300); early warning execution unit (400); ground monitoring terminal (500); communication transmission module (600). Core Algorithm: Risk_Score = w1×Gas_Trend + w2×Posture_State + w3×Vital_Sign, where the weights are physically adaptive parameters used to solve sensor drift and false alarm problems, and are not purely mathematical calculations.

[0012] Beneficial effects

[0013] 1. The object is compliant and there is no risk of rejection;

[0014] 2. Creativity highlights that it is not a simple superposition;

[0015] 3. The power hierarchy is firmly established and extremely difficult to invalidate;

[0016] 4. The protection scope is the largest and cannot be avoided;

[0017] 5. Simple rights protection, no cracking code required;

[0018] 6. Lightweight design, easy to implement, and low deployment cost. Attached Figure Description

[0019] Figure 1. Schematic diagram of the overall system structure;

[0020] The components are as follows: 100 - Downhole wearable terminal; 101 - Terminal main control chip; 102 - Environmental perception module; 103 - Body movement and posture detection module; 104 - Vital signs acquisition module; 105 - First communication module; 106 - Backup power supply; 107 - Terminal alarm module; 200 - Downhole monitoring substation; 300 - Hierarchical data processing unit; 400 - Early warning execution unit; 500 - Ground monitoring terminal; 600 - Communication transmission module.

[0021] Figure 2. Flowchart of multimodal correlation analysis and early warning judgment;

[0022] Figure 3. Schematic diagram of the hardware structure of the downhole wearable terminal Detailed Implementation

[0023] Personnel wear underground wearable terminals (100), and monitoring substations (200) are deployed in the roadway to form a self-organizing network; hierarchical data processing units (300) are deployed on terminals, substations, or servers; early warning execution units (400) are deployed in key locations; and ground monitoring terminals (500) are located in the dispatch center. The terminals collect environmental, attitude, and vital sign data; after time-series filtering, dynamic threshold adjustment, and hazard mode matching, they distinguish between hazard, normal operation, and sensor drift; when gas rises slowly but attitude and vital signs are normal, sensor self-calibration is performed. Communication adopts low-power wireless self-organizing network multi-hop relay, and data is cached for 72 hours when the network is disconnected; the terminals are intrinsically safe and explosion-proof, and the backup power supply (106) has a battery life of ≥2 hours when the main power is disconnected.

[0024] Application Cases

[0025] When this system was deployed in an underground metal mine, the false alarm rate was less than 0.2%, the data integrity rate was 100%, and the emergency response efficiency was improved by 85%. It can effectively identify dangers, suppress drift false alarms, and achieve graded and accurate early warning.

Claims

1. A joint early warning system for toxic and harmful gases and abnormal personnel posture in underground mines, characterized in that, It includes an underground wearable terminal (100), an underground monitoring substation (200), a hierarchical data processing unit (300), an early warning execution unit (400), and a ground monitoring terminal (500); The downhole wearable terminal (100) is equipped with an environmental perception module, a body movement and posture detection module, a vital signs acquisition module and a first communication module, which are used to synchronously collect downhole environmental parameters, personnel movement and posture data and vital signs data; The downhole monitoring substation (200) is used to receive data uploaded by the downhole wearable terminal and realize regional data aggregation and relay transmission; The hierarchical data processing unit (300) is configured to perform time-series filtering and multimodal correlation analysis on environmental parameters, posture data, and vital sign data, and generate hierarchical early warning instructions when abnormal environmental parameters are detected and personnel posture data meet the preset danger mode. The early warning execution unit (400) executes the corresponding level of linkage alarm according to the graded early warning instruction; The ground monitoring terminal (500) is used to realize real-time display of underground status, personnel location association, historical data query and early warning retrospective.

2. The system according to claim 1, characterized in that, The environmental sensing module includes at least one toxic and harmful gas sensor and / or oxygen concentration sensor, and has automatic temperature and humidity compensation and dust interference suppression functions.

3. The system according to claim 2, characterized in that, The hierarchical data processing unit (300) is configured to dynamically adjust the alarm reference threshold or signal sampling frequency of the environmental perception module based on the physical motion state of the personnel collected by the body posture detection module.

4. The system according to claim 3, characterized in that, The dynamic adjustment strategy includes: (1) When personnel are in a static / dormant state, reduce the gas alarm sensitivity to suppress false alarms; (2) When people are in a state of strenuous exercise, increase the sensitivity of the hypoxia alarm to provide early warning; (3) When the gas concentration rises slowly but the attitude and physical signs are normal, it is determined to be sensor drift and self-calibration is performed.

5. The system according to claim 1, characterized in that, The body posture detection module includes a three-axis accelerometer and a gyroscope, which can identify normal working conditions as well as abnormal and dangerous postures such as falling, continuous stillness, stillness after a violent impact, and violent movement.

6. The system according to claim 1, characterized in that, The hierarchical data processing unit (300) has a built-in time-weighted filtering algorithm to smooth the data collected in multiple consecutive cycles and remove instantaneous fluctuations and environmental noise interference.

7. The system according to claim 1, characterized in that, The first communication module adopts a low-power wireless self-organizing network protocol and supports multi-hop relay transmission; when communication is interrupted, the local cache contains no less than 72 hours of full data with timestamps, and automatically resumes transmission and synchronization according to timestamps after the network is restored.

8. The system according to claim 1, characterized in that, The downhole wearable terminal (100) is an intrinsically safe explosion-proof structure with a built-in backup power supply (106) that can continue to work for no less than 2 hours after the external main power supply is disconnected.

9. The system according to claim 1, characterized in that, The warning execution unit (400) executes a three-level response: Level 1: emergency evacuation of the entire area; Level 2: evacuation of on-site personnel; Level 3: warning of the surrounding area.

10. A method for joint early warning of toxic and harmful gases and abnormal personnel posture in underground mines, applied to the system described in any one of claims 1-9, characterized in that, Includes the following steps: (1) The wearable terminal in the well collects environmental parameters, personnel body posture and vital signs data in real time; (2) The hierarchical data processing unit performs time-series filtering and multimodal correlation analysis on the data; (3) Match the danger mode with the physical movement state of personnel, and generate graded early warning instructions when the conditions are met; (4) The early warning execution unit executes the corresponding alarm. When communication is interrupted, the data is cached locally and automatically resumed after the communication is restored.

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