Personnel safety monitoring system based on coal mine tunneling operation

Abstract

The invention discloses a personnel safety monitoring system based on coal mine tunneling operation, relates to the technical field of safety monitoring, and solves the technical problems that the safety condition of an operation site is difficult to comprehensively and accurately master in real time, and various safety accidents cannot be effectively prevented and handled. According to the invention, comprehensive environmental parameters such as harmful gas concentration, temperature and humidity in a coal mine area can be acquired in real time through the sensor data acquisition module, and the acquired environmental parameters are compared with a normal range value set by an operator, so that the safety of a working area corresponding to the operator can be accurately judged; a powerful basis is provided for safety assessment of the working environment, the accuracy and timeliness of environment safety monitoring are improved, action track information of workers is continuously and accurately obtained, analysis and judgment are carried out according to dangerous areas marked by an electronic map, physiological state parameters and behavior state parameters are collected in real time and analyzed, and the safety of the working environment is improved. And the abnormal state of the staff can be found in time.

Description

Technical Field

[0001] The present invention relates to the technical field of safety monitoring, and specifically to a personnel safety monitoring system based on coal mine tunneling operations. Background Art

[0002] The coal mine tunneling operation environment is complex and there are many potential safety hazards. During the operation, the concentrations of harmful gases such as methane and carbon monoxide may change due to factors such as geological conditions and ventilation conditions. Once exceeding the standard, it is extremely easy to trigger accidents such as explosions and poisonings. At the same time, the abnormalities of environmental parameters such as temperature and humidity in the coal mine underground will also affect the physical health and operation efficiency of the staff.

[0003] According to the patent application with the publication number CN110889941 B, a construction personnel safety monitoring system and method are disclosed. The construction personnel safety monitoring system includes a dangerous area warning device, an intelligent safety helmet, a local safety management terminal, a remote monitoring terminal, and a mobile terminal. The monitoring data obtained by the dangerous area warning device and the intelligent safety helmet can be respectively displayed and monitored in real time by the local safety management terminal and the remote monitoring terminal, and can emit sound and light warnings in real time through the dangerous area warning device and the intelligent safety helmet, realizing the safety monitoring and warning of the construction personnel's construction operations.

[0004] However, traditional coal mine safety monitoring means have certain limitations in aspects such as personnel positioning, equipment status monitoring, and analysis of personnel's physiological and behavioral states, and it is difficult to comprehensively, real-time, and accurately grasp the safety status of the operation site, and it is impossible to effectively prevent and respond to various safety accidents. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides a personnel safety monitoring system based on coal mine tunneling operations, which solves the problems of being difficult to comprehensively, real-time, and accurately grasp the safety status of the operation site and being unable to effectively prevent and respond to various safety accidents.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: A personnel safety monitoring system based on coal mine tunneling operations includes:

[0007] A sensor data acquisition module, which acquires the concentration of harmful gases, temperature, and humidity parameters in the coal mine area;

[0008] A personnel positioning and analysis module, which is used to determine the safety of the area where the personnel are located based on the environmental parameters of the sensor data acquisition module and in combination with the real-time positioning of the personnel, generate a regional normal / abnormal signal, and transmit the generated signal at the same time;

[0009] The positioning normal analysis module is used to analyze the area normal signals transmitted by the personnel positioning analysis module, judge whether there is a dangerous construction situation according to the action trajectory information of the staff, and generate a danger analysis signal or a normal monitoring signal;

[0010] Analyze the danger analysis signal, calculate the average value of the corresponding stay duration, compare it with the preset duration value to generate a warning signal or a reminder signal, and transmit it to the monitoring information output module at the same time;

[0011] The positioning abnormal analysis module is used to analyze the area abnormal signals transmitted by the personnel positioning analysis module, comprehensively analyze the physiological state and behavior state parameters of the staff, generate different situation signals, and transmit the secondary analysis signals among them to the comprehensive processing and analysis module;

[0012] The comprehensive processing and analysis module is used to process the obtained secondary analysis signals, generate equipment normal or abnormal signals by analyzing the area equipment where the personnel are located, and at the same time combine the physiological state and behavior state parameters of the staff within the time period to identify and generate a warning signal or a reminder signal, and transmit it to the monitoring information output module.

[0013] The monitoring information output module is used to display the obtained warning signal or reminder signal to the corresponding staff.

[0014] As a further solution of the present invention, the specific way for the personnel positioning analysis module to generate area normal or abnormal signals is as follows:

[0015] Obtain the real-time positioning of the personnel, determine the area where the real-time positioning is located as the area to be analyzed, obtain the environmental parameters of the area to be analyzed at the same time, and compare the environmental parameters with the normal parameters. If the environmental parameters match the normal parameters, generate an area abnormal signal; otherwise, generate an area normal signal.

[0016] As a further solution of the present invention, the specific way for the positioning normal analysis module to generate a danger analysis signal or a normal monitoring signal is as follows:

[0017] Obtain the action trajectory information of the staff, and judge the relationship between the action trajectory information and the dangerous area. If the action trajectory passes through the dangerous area, generate a danger analysis signal; otherwise, if the action trajectory does not pass through the dangerous area, generate a normal monitoring signal, and transmit the normal monitoring signal to the monitoring information output module at the same time.

[0018] As a further solution of the present invention, the specific way to analyze the danger analysis signal is as follows:

[0019] Obtain the corresponding stay times and the corresponding stay durations of the staff according to the action trajectory information, calculate the average value of the stay durations, and compare the obtained average value of the stay durations with the preset duration value;

[0020] If the average residence time is greater than the preset time duration, a warning signal is generated. Conversely, if the average residence time is less than the preset time duration, a reminder signal is generated, and both are transmitted to the monitoring information output module.

[0021] As a further solution of the present invention, the specific method for the positioning anomaly analysis module to analyze the regional anomaly signal is as follows:

[0022] Compare the physiological state parameters with the normal physiological parameters to generate physiological normal or abnormal signals, and compare the behavioral state parameters with the normal state parameters to generate behavioral normal or abnormal signals;

[0023] If physiological and behavioral normal signals are generated simultaneously, it is determined that the staff's state is normal, a normal situation signal is generated and transmitted to the monitoring information output module;

[0024] If a physiological or behavioral abnormal signal is generated, it is determined that the staff's state is abnormal, a dangerous situation signal is generated and transmitted to the monitoring information output module. For other signal combinations, a secondary analysis signal is generated and transmitted to the comprehensive processing and analysis module.

[0025] As a further solution of the present invention, the specific method for the comprehensive processing and analysis module to analyze the secondary analysis signal is as follows:

[0026] Taking time t as a cycle, analyze the regional equipment corresponding to the area to be analyzed, judge the working condition of the regional equipment, and generate equipment normal signals or equipment abnormal signals;

[0027] For the generated equipment abnormal signal, a warning signal is directly generated and transmitted to the monitoring information output module. For the generated equipment normal signal, secondary analysis and processing are performed.

[0028] As a further solution of the present invention, the specific method for the comprehensive processing and analysis module to perform secondary analysis and processing on the equipment normal signal is as follows:

[0029] Obtain the physiological state parameters and behavioral state parameters corresponding to the staff, and at the same time obtain the changes in the physiological state parameters and behavioral state parameters within the time period t, and also obtain the changes in the environmental parameters of the area to be analyzed within the time period, and identify by combining the two;

[0030] If both show an increasing change, it indicates that the current state of the staff is abnormal, and a warning signal is generated. Conversely, if the change situations of the two are different, a reminder signal is generated, and then the warning signal and the reminder signal are transmitted to the monitoring information output module.

[0031] The present invention provides a personnel safety monitoring system for coal mine tunneling operations. Compared with the prior art, it has the following beneficial effects:

[0032] Through the sensor data acquisition module, the present invention can collect comprehensive environmental parameters such as the concentration of harmful gases, temperature, and humidity in the coal mine area in real time. By comparing the collected environmental parameters with the normal range values set by the operator, it can accurately judge the safety of the corresponding working area of the staff, providing a strong basis for the safety assessment of the working environment and improving the accuracy and timeliness of environmental safety monitoring.

[0033] By continuously and accurately obtaining the movement trajectory information of the staff and analyzing and judging according to the dangerous areas marked on the electronic map, and collecting and analyzing the physiological state parameters and behavioral state parameters in real time, it can timely detect the abnormal state of the staff.

[0034] By comparing the key data of the equipment operation with the preset normal operation parameter range, it can timely judge the working state of the equipment and generate a normal signal or an abnormal signal of the equipment. For the abnormal signal of the equipment, a warning signal is directly generated, effectively preventing safety accidents caused by equipment failures and improving the safety and stability of the operation of coal mine equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a block diagram of the system principle of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0037] Embodiment 1

[0038] Please refer to Figure 1 , the present application provides a personnel safety monitoring system based on coal mine tunneling operations, including:

[0039] A sensor data acquisition module that acquires environmental parameters in the coal mine area, where the environmental parameters include the concentration of harmful gases, temperature, and humidity parameters, and at the same time transmits the acquired environmental parameters to the personnel positioning analysis module.

[0040] A personnel positioning analysis module that acquires the real-time positioning of personnel and judges the safety of the corresponding working area of the staff according to the real-time positioning, generating a regional normal signal or a regional abnormal signal, and the specific judgment method is:

[0041] Obtain the real-time location of personnel, and determine the area where the real-time location is located as the area to be analyzed. At the same time, obtain the environmental parameters of the area to be analyzed. Deploy a variety of environmental parameter sensors in the area to be analyzed, such as gas sensors, carbon monoxide sensors, wind speed sensors, temperature sensors, etc., to collect the environmental parameters of this area in real time, and compare the environmental parameters with the normal parameters. The specific values of the normal parameters are set by the operator. At the same time, the normal parameters are range values. If the environmental parameters match the normal parameters, it means that there is an abnormality in the area to be analyzed, and a regional abnormality signal is generated. On the contrary, if the environmental parameters do not match the normal parameters, it means that there is no abnormality in the area to be analyzed, and a regional normal signal is generated;

[0042] Taking the No. A driving roadway as an example, the gas sensor monitors the gas concentration in this area in real time, and the wind speed sensor obtains the wind speed data in the roadway, etc.;

[0043] For example, for the gas concentration, under the condition of normal ventilation and no abnormality in this driving roadway, the operator sets the normal range value to 0.1%-0.5%; the normal range of the wind speed is set to 0.25-4 m / s. For example, if the monitored value of the gas concentration in the No. A driving roadway reaches 0.6%, which is higher than the set normal upper limit of 0.5%, it is determined that there is an abnormality in the area to be analyzed, and the system immediately generates a regional abnormality signal.

[0044] On the contrary, if the monitored value of the gas concentration in this area is 0.3%, which is within the normal range of 0.1%-0.5%, it means that there is no abnormality in the area to be analyzed, and the system generates a regional normal signal.

[0045] Then transmit the regional normal signal to the positioning normal analysis module, and transmit the regional abnormality signal to the positioning abnormality analysis module.

[0046] The positioning normal analysis module, with the help of the high-precision personnel positioning system deployed in the coal mine, continuously and accurately obtains the action trajectory information of the staff. The system analyzes and judges the action trajectory of the staff based on the dangerous areas (such as areas with abnormal gas outbursts, areas with unstable roofs, etc.) marked on the electronic map in advance.

[0047] For example, in the mining operation area of a certain coal mine, Area C is designated as a dangerous area with abnormal gas due to complex geological structures. When the staff is working underground, the positioning system records their action trajectory in real time. If the trajectory shows that a certain staff member enters Area C and stays in this area, it is determined that there is a situation of construction in the dangerous area, and the system immediately generates a danger analysis signal;

[0048] If the movement trajectory never enters any dangerous area, for example, a certain worker is operating normally in the safe Driving Roadway B, and his movement trajectory does not touch any dangerous area, it means that there is no construction situation in the dangerous area. The system generates a normal monitoring signal and transmits this normal monitoring signal to the monitoring information output module in a timely manner so that the management personnel can grasp the safe operation status in real time.

[0049] Once the system generates a danger analysis signal, it further deeply analyzes the movement trajectory information of the worker. The system automatically counts the number of times the worker stays in the dangerous area and accurately calculates the duration of each stay, and then obtains the average stay duration.

[0050] Taking Area C as an example, a certain worker enters this dangerous area 3 times within a period of time, and the stay durations are 15 minutes, 20 minutes, and 10 minutes respectively. After being calculated by the system, the average stay duration is (15 + 20 + 10) ÷ 3 = 15 minutes. The coal mine safety management personnel preset a duration preset value according to the risk level of this dangerous area in advance. For example, the duration preset value for Area C is set to 10 minutes.

[0051] Compare the calculated average stay duration with the duration preset value. If the average stay duration is greater than the duration preset value, for example, in the above example, the average value of 15 minutes is greater than the preset value of 10 minutes. At this time, the system generates a warning signal to indicate that there is a relatively high safety risk; if the average stay duration is less than the duration preset value, the system generates a reminder signal.

[0052] Whether it is a warning signal or a reminder signal, it will be transmitted to the monitoring information output module in a timely manner, which is convenient for the management personnel to take corresponding measures according to different risk levels. For example, in the case of a warning signal being issued, immediately arrange a special person to go to the dangerous area to guide the workers to evacuate or take emergency safety measures; for the reminder signal situation, timely notify the workers to pay attention to the risks in the area where they are located, complete the necessary work as soon as possible and evacuate.

[0053] Embodiment 2

[0054] As Embodiment 2 of the present invention, when this application is specifically implemented, compared with Embodiment 1, the difference between the technical solution of this embodiment and that of Embodiment 1 is only that in this embodiment, the positioning anomaly analysis module analyzes the obtained area anomaly signal;

[0055] Staff members need to wear wearable devices with multiple monitoring functions, which can collect physiological state parameters and behavioral state parameters of personnel in real time. Among them, physiological state parameters mainly cover heart rate and blood pressure. For example, the real-time heart rate and blood pressure values of staff members can be accurately measured through smart bracelets. Behavioral state parameters include moving speed and moving duration. With the built-in positioning and motion sensors of the device, the moving speed of staff members during underground operations and the duration of continuous movement can be accurately obtained. For example, during the daily tunneling operation in a certain coal mine, the wearable device worn by staff member Li continuously collects his physiological and behavioral data and feeds it back to the monitoring system in real time;

[0056] The coal mine safety management department has pre-set the normal physiological parameter range according to medical health standards and the characteristics of the coal mine operation environment. Taking heart rate as an example, the normal range is set at 60 - 100 beats per minute, and the normal range of blood pressure is 90 - 140 mmHg for systolic pressure and 60 - 90 mmHg for diastolic pressure. The physiological state parameters collected by the wearable device are compared with these preset ranges. If Li's heart rate is 80 beats per minute, systolic blood pressure is 120 mmHg, and diastolic blood pressure is 80 mmHg, all within the normal range, a physiological normal signal is generated; if the heart rate reaches 120 beats per minute, exceeding the normal upper limit, a physiological abnormal signal is generated;

[0057] Similarly, normal state parameters are also set for behavioral state parameters. According to the coal mine operation process and safety specifications, the normal range of moving speed for staff members in the normal operation area is set at 0.5 - 2 m / s, and the duration of a single continuous movement generally does not exceed 30 minutes. When Li is working normally underground, his moving speed is stable at 1 m / s, and the duration of a single continuous movement is 20 minutes, which is within the normal range, and a behavioral normal signal is generated; if his moving speed suddenly increases to 3 m / s, or the continuous movement duration exceeds 40 minutes, a behavioral abnormal signal is generated;

[0058] When the generated signals are a physiological normal signal and a behavioral normal signal through comprehensive analysis, as in the example of Li above, it indicates that the current state of the staff member is normal. The system immediately generates a normal situation signal and transmits it quickly to the monitoring information output module so that managers can intuitively understand that the staff member is in a safe and normal working state;

[0059] If a physiological abnormal signal or a behavioral abnormal signal is generated, that is, as long as one of the parameters is abnormal. For example, if Li's diastolic blood pressure drops to 50 mmHg, a physiological abnormal signal is generated. At this time, the system determines that the current state of the staff member is abnormal, generates a dangerous situation signal, and urgently transmits it to the monitoring information output module to remind managers that this staff member may face health risks or be in an abnormal working state and immediate rescue or intervention measures need to be taken;

[0060] For signal combinations that are neither completely normal nor dangerous, such as Li's heart rate of 105 beats / minute, slightly higher than the upper limit of normal, generating physiological abnormality signals, but the behavioral state parameters are normal. At this time, the system generates a secondary analysis signal and transmits it to the comprehensive processing and analysis module;

[0061] The comprehensive processing and analysis module is used to analyze the acquired secondary analysis signals, and to conduct comprehensive monitoring and analysis of the regional equipment (such as tunneling machines, ventilators, etc.) in the area to be analyzed (such as a certain tunneling working face) of the coal mine with a fixed period of time t (for example, t = 30 minutes). Through the sensors and intelligent monitoring system provided by the equipment, key data of equipment operation, such as current, voltage, speed, temperature and other parameters, are collected and compared with the pre-set normal operating parameter range of the equipment to determine whether the regional equipment is in normal working condition.

[0062] If all operating parameters of the equipment are within the normal range, for example, within t=30 minutes, the motor current of a ventilator is stable in the normal range of 50-60A, the air pressure at the air outlet is maintained in the standard range of 200-300Pa, and the equipment operation sound is stable and without abnormalities, the system determines that the equipment in this area is working normally and generates a normal equipment signal; conversely, if any parameter of the equipment exceeds the normal range, such as during the operation of a tunnel boring machine, the temperature of the cutting motor instantly rises to above 80°C (the normal operating temperature is 40-60°C), or abnormal vibration, noise, etc. occur, the system immediately generates an abnormal equipment signal.

[0063] For the generated equipment abnormality signal, an early warning signal is directly generated and transmitted to the monitoring information output module;

[0064] When the system generates a normal signal for the equipment, it further monitors and analyzes the status of the staff in the area to be analyzed. The system obtains the staff's physiological state parameters (such as heart rate, blood pressure) and behavioral state parameters (such as movement speed, movement duration) in real time through the wearable devices worn by the staff. At the same time, environmental sensors installed in the area to be analyzed are used to collect environmental parameters (such as gas concentration, temperature, and humidity). Taking the time period t = 30 minutes as an example, analyze the changes in each parameter within this time period;

[0065] If within t=30 minutes, the physiological state parameters and behavioral state parameters of the staff show an increasing trend, and the environmental parameters of the area to be analyzed also increase synchronously, for example, the heart rate of a staff member gradually increases from the initial 70 times / minute to 90 times / minute, and the moving speed increases from 1m / s to 1.5m / s. At the same time, the gas concentration in the area increases from 0.2 to 0.3, and the temperature increases from 25 to 28.

[0066] In this case, it is very likely that the deterioration of the working environment has led to physical stress reactions and behavioral changes in the staff. The system determines that the current state of the staff is abnormal, generates a warning signal, and transmits it to the monitoring information output module. After receiving the warning signal, the management personnel can promptly evaluate the on-site situation and take corresponding measures, such as strengthening ventilation, arranging for the staff to evacuate temporarily, etc.;

[0067] If within the time period t, the changes in the physiological and behavioral state parameters of the staff are not synchronized with the changes in the environmental parameters of the area to be analyzed. For example, the heart rate of the staff drops from 75 beats per minute to 70 beats per minute, and the moving speed drops from 1.2 m / s to 1 m / s, but the gas concentration in this area rises from 0.2 to 0.25, and the temperature rises from 26 to 27. At this time, although both the staff state and the environmental state have changed, their change trends are inconsistent. The system generates a reminder signal and transmits it to the monitoring information output module. After receiving the reminder signal, the management personnel can further pay attention to the staff state and environmental changes, analyze the reasons, and judge whether corresponding measures need to be taken, such as asking about the physical condition of the staff and checking whether the environmental changes are within the controllable range, etc.

[0068] The monitoring information output module is used to display the obtained warning signal and reminder signal to the corresponding staff.

[0069] As the third embodiment of the present invention, when the present application is specifically implemented, compared with the first embodiment and the second embodiment, the technical solution of this embodiment lies in combining the solutions of the above-mentioned first embodiment and the second embodiment for implementation.

[0070] Some of the data in the above formula are taken for numerical calculation without substituting the parameter units for calculation. At the same time, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0071] The above embodiments are only used to illustrate the technical method of the present invention and not to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical method of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A personnel safety monitoring system based on coal mine excavation operations, characterized in that: include: The personnel positioning analysis module is used to obtain the environmental parameters of the module based on the sensor data, and determine the safety of the area in combination with the real-time positioning of personnel, generate normal and abnormal signals of the area, and transmit the generated signals at the same time; The normal positioning analysis module is used to analyze the normal area signal transmitted by the personnel positioning analysis module, determine whether there is a dangerous construction situation based on the movement trajectory information of the staff, and generate a dangerous analysis signal or a normal monitoring signal; The hazard analysis signal is analyzed, the corresponding average duration is calculated, and compared with the preset duration value to generate an early warning signal or a reminder signal, which is transmitted to the monitoring information output module at the same time; The positioning abnormality analysis module is used to analyze the regional abnormality signal transmitted by the personnel positioning analysis module, conduct a comprehensive analysis of the physiological state and behavioral state parameters of the staff, generate different situation signals, and transmit the secondary analysis signal therein to the comprehensive processing analysis module; The comprehensive processing and analysis module is used to process the acquired secondary analysis signals, generate normal or abnormal equipment signals by analyzing the regional equipment in the area where the personnel are located, and at the same time identify and generate early warning signals or reminder signals based on the physiological state and behavioral state parameters of the staff within a time period, and transmit them to the monitoring information output module.

2. The personnel safety monitoring system based on coal mine excavation operation according to claim 1 is characterized in that: Also includes: The sensor data acquisition module obtains the harmful gas concentration, temperature and humidity parameters in the coal mine area; The monitoring information output module is used to display the obtained early warning signals or reminder signals to the corresponding staff.

3. The personnel safety monitoring system based on coal mine excavation operation according to claim 1 is characterized in that: The specific method of generating a normal or abnormal signal of an area by the personnel positioning analysis module is as follows: The real-time location of the personnel is obtained, and the area where the real-time location is located is determined as the area to be analyzed. At the same time, the environmental parameters of the area to be analyzed are obtained, and the environmental parameters are compared with the normal parameters. If the environmental parameters match the normal parameters, an abnormal signal of the area is generated, otherwise, a normal signal of the area is generated.

4. The personnel safety monitoring system based on coal mine excavation operation according to claim 1 is characterized in that: The specific method of generating a danger analysis signal or a normal monitoring signal by the positioning normal analysis module is: The movement trajectory information of the staff is obtained, and the relationship between the movement trajectory information and the dangerous area is determined. If the movement trajectory passes through the dangerous area, a danger analysis signal is generated. Otherwise, if the movement trajectory does not pass through the dangerous area, a normal monitoring signal is generated and transmitted to the monitoring information output module.

5. The personnel safety monitoring system based on coal mine excavation operation according to claim 1 is characterized in that: The specific method of analyzing the danger analysis signal is as follows: According to the action trajectory information, the number of stops and the corresponding duration of the staff member are obtained, and the average duration of the stay is calculated, and the obtained average duration of the stay is compared with the preset duration value; If the average stay time is greater than the preset time value, an early warning signal is generated. Conversely, if the average stay time is less than the preset time value, a reminder signal is generated, and both are transmitted to the monitoring information output module at the same time.

6. The personnel safety monitoring system based on coal mine excavation operation according to claim 1 is characterized in that: The specific method in which the positioning anomaly analysis module analyzes the regional anomaly signal is as follows: Compare the physiological state parameters with normal physiological parameters to generate physiological normal or abnormal signals, and compare the behavioral state parameters with normal state parameters to generate behavioral normal or abnormal signals; If normal physiological and behavioral signals are generated at the same time, the worker is judged to be in a normal state, and a normal situation signal is generated and transmitted to the monitoring information output module; If a physiological or behavioral abnormal signal is generated, the worker's state is judged to be abnormal, a dangerous situation signal is generated and transmitted to the monitoring information output module, and other signals are combined to generate a secondary analysis signal and transmitted to the comprehensive processing and analysis module.

7. The personnel safety monitoring system based on coal mine excavation operation according to claim 1 is characterized in that: The specific method in which the comprehensive processing and analysis module analyzes the secondary analysis signal is as follows: With time t as a cycle, analyze the regional equipment corresponding to the area to be analyzed, determine the working conditions of the regional equipment, and generate a normal equipment signal or an abnormal equipment signal; For the generated equipment abnormal signal, an early warning signal is directly generated and transmitted to the monitoring information output module. For the generated equipment normal signal, a secondary analysis and processing is performed.

8. The personnel safety monitoring system based on coal mine excavation operation according to claim 7 is characterized in that: The specific method of the comprehensive processing and analysis module performing secondary analysis and processing on the normal signal of the device is: Obtain the physiological state parameters and behavioral state parameters corresponding to the staff, and at the same time obtain the changes in the physiological state parameters and behavioral state parameters within the time period t, and at the same time obtain the changes in the environmental parameters of the area to be analyzed within the time period, and combine the two for identification; If both of them increase, it means that the current state of the staff is abnormal and a warning signal is generated. On the contrary, if the changes in the two are different, a reminder signal is generated, and then the warning signal and reminder signal are transmitted to the monitoring information output module.

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