CN116163810A - Coal mine environment safety monitoring system and method - Google Patents
Coal mine environment safety monitoring system and method Download PDFInfo
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Abstract
The invention provides a coal mine environment safety monitoring system and a method, wherein environment information acquisition terminals are arranged at different monitoring positions, and a user terminal server is used for preprocessing, so that the analysis and recognition accuracy of the safety level corresponding to the environment information is improved, the environment information exceeding the limit of the preset safety level is selectively selected and transmitted to a host server at an upper level, the monitoring workload is reasonably distributed, and the processing problem caused by excessive data is reduced. And simultaneously, the main server is utilized to store and analyze the environment information exceeding the limit of the preset security level, the security level matched with the environment information and the personnel position identity information, and the environment information is processed into the three-dimensional space security information updated according to the monitoring period. By using the system and the method, the underground safety problem of the coal mine can be effectively monitored, accurate and timely automatic informatization prediction and early warning are realized, and effective help is provided for processing safety accidents.
Description
Technical Field
The invention belongs to the field of coal mines, and relates to a coal mine environment safety monitoring system and method.
Background
Along with the increasing prominence of coal mine safety problems, the safety state of the coal mine is monitored, the early warning capacity of important dangerous sources of the coal mine is improved, the incidence rate of serious dangerous source accidents is reduced, and the overall safety management level of the coal mine is more and more important.
The common coal mine safety monitoring mode mainly comprises the steps of detecting the environmental information of all underground areas through sensors, such as the content of dangerous gas and the like, and directly sending the data to a ground server, so that the server records the corresponding relation between the current time and the dangerous gas content, and safety monitoring of the coal mine is completed.
CN104675435a discloses a coal mine safety monitoring system, which is connected with an underground ring network platform through a network switch, the network switch is connected with a server, and terminal equipment is connected with the ring network platform, receives signals sent by monitoring substations remotely, and sends the signals to a host for processing; a host signal is received and sent to the corresponding monitoring substation. The mine monitoring system is used for monitoring methane concentration, carbon monoxide concentration, wind speed, wind pressure, temperature, smoke, feeding state, air door state, air duct state, local ventilator start-stop and main ventilator start-stop, and realizing methane overrun audible and visual alarm, power failure and methane wind power locking control, has high automation degree, can accurately detect various gas contents, and ensures the safety of underground production.
CN202140117U discloses a system for detecting, identifying, predicting and early warning major hazard sources under coal mine, which comprises a server, an operation terminal, a ring network exchanger, a fireproof gas detector, a hydrological monitor and a roof pressure monitor, wherein the fireproof gas detector, the hydrological monitor and the roof pressure monitor are arranged under the coal mine and are respectively connected with the ring network exchanger, and the ring network exchanger is connected with the server and the operation terminal which are arranged on the coal mine through a network. The decision support module of the software platform is used for realizing the real-time centralized monitoring of water, fire, gas and roof pressure, and can report the prediction and early warning information of dangerous conditions in advance, thereby providing the most effective help for handling accident catastrophe.
However, because the coal mine environment and the operation condition are complex and the environment information required to be monitored is too much, the monitoring system often causes the data volume received by the ground server to be too large, the working pressure is rapidly increased, the processing data is delayed, and the problem that the actual safety state of the current coal mine cannot be truly reflected is caused.
More specifically: the existing monitoring system still does not establish a major hazard source detection, identification and early warning model integrated by multiple professions and multiple disciplines, and lacks comprehensive data mining on massive data acquired by detection and monitoring equipment, but is only based on simple analysis of a single professional; the system has the advantages that the system is not provided with a unified informationized data processing platform and a unified network platform, analysis and research consideration factors of related accidents are single, so that information cannot be shared and exchanged, the system is complex to operate, and prediction and forecast accuracy is low; the technical management mode of coal enterprises is mainly a traditional manual management mode, cannot adapt to the requirements of informationized management, and cannot fully exert the advantages of the information technology, such as rapidness, accuracy and real time; the coal mine information belongs to the category of space information, different mine exploitation technical conditions have more or less difference, a large amount of data are obtained through a plurality of monitoring and controlling systems, and general industrial control configuration software is not developed for the coal industry and cannot meet the requirement on coal mine space information processing.
Therefore, aiming at the problems, a new technical scheme for monitoring the coal mine environment safety is still required to be developed.
Disclosure of Invention
In view of the problems existing in the prior art, the invention aims to provide a coal mine environment safety monitoring system and a coal mine environment safety monitoring method, wherein environment information acquisition terminals are arranged at different monitoring positions and a terminal server is used for preprocessing, so that the analysis and recognition precision of safety grades corresponding to environment information is improved, the environment information exceeding the limit of the preset safety grade is selectively selected and transmitted to a host server at an upper level, the monitoring workload is reasonably distributed, and the processing problem caused by excessive data is reduced. And simultaneously, the main server is utilized to store and analyze the environment information exceeding the limit of the preset security level, the security level matched with the environment information and the personnel position identity information, and the environment information is processed into the three-dimensional space security information updated according to the monitoring period. By using the system and the method, the underground safety problem of the coal mine can be effectively monitored, accurate and timely automatic informatization prediction and early warning are realized, and effective help is provided for processing safety accidents.
To achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, the invention provides a coal mine environment safety monitoring system, which comprises environment information acquisition terminals installed in different underground areas, wherein each group of environment information acquisition terminals are connected with corresponding end servers; the terminal server is also connected with a security level output terminal and is connected with an upper-level main server through a network switch, and the network switch is also connected with a monitoring host;
the end server comprises an environment information acquisition module, a personnel position acquisition module, a personnel identity acquisition module, an analysis module and a management and control module; the terminal server is configured to control the environment information acquisition terminal to acquire and analyze environment information, calculate and match a security level according to the environment information, output a security level result to the security level output terminal, and output the environment information exceeding a preset security level limit, and the security level, personnel position information and personnel identity information corresponding to the environment information to the main server;
the main server comprises a storage module, a GIS module and a management and control module; the main service is configured to store environment information exceeding a preset security level limit, and security level, personnel position information and personnel identity information corresponding to the environment information, analyze and generate three-dimensional space security information updated according to a monitoring period.
In the system, an end server is arranged to process environment information first, and according to the processing result, the environment information exceeding the preset safety level limit and the corresponding safety level, personnel position information and personnel identity information are selectively transmitted to a main server, so that the end server can analyze and discriminate the environment information, calculate and match the safety level, share working pressure, improve the identification accuracy of the safety level, and reduce the total data amount and data size uploaded; further, the main server generates three-dimensional space safety information according to the uploaded and stored data and combined with a geographic information system (Geographic Information System, GIS), and feedback and monitoring of the safety level are effectively achieved. By using the system and the method, the underground safety problem of the coal mine can be effectively monitored, accurate and timely automatic informatization prediction and early warning are realized, and effective help is provided for processing safety accidents.
The following technical scheme is a preferred technical scheme of the invention, but is not a limitation of the technical scheme provided by the invention, and the technical purpose and beneficial effects of the invention can be better achieved and realized through the following technical scheme.
As an optimal technical scheme of the invention, the installation position of the environment information acquisition terminal comprises a tunneling working face, a coal mining working face, an air inlet roadway and an air return roadway.
Preferably, the installation position in the tunneling working face comprises any one or at least two of a tunneling machine return air side, various working point return air sides and a breathing zone between a dust producing point and a dust remover, and typical but non-limiting examples of the combination comprise a combination of the tunneling machine return air side and various working point return air sides, a combination of the tunneling machine return air side and the breathing zone between the dust producing point and the dust remover, or a combination of the various working point return air sides and the breathing zone between the dust producing point and the dust remover.
Preferably, the installation location of the coal face includes any one or a combination of at least two of a shearer return side, a driver worksite, or a corner on the coal face, and typical but non-limiting examples of such combinations include a shearer return side and driver worksite combination, a shearer upper corner and shearer return side combination, or a shearer return side and driver worksite combination.
Preferably, each set of the environmental information collection terminals includes any one or a combination of at least two of a gas sensor, an oxygen sensor, a dust sensor, a pressure sensor, and a temperature sensor, and typical but non-limiting examples of the combination include a combination of a gas sensor and an oxygen sensor, a combination of a gas sensor and a dust sensor, a combination of a gas sensor and a pressure sensor, a combination of a gas sensor and a temperature sensor, a combination of an oxygen sensor and a dust sensor, a combination of an oxygen sensor and a pressure sensor, a combination of an oxygen sensor and a temperature sensor, a combination of a dust sensor and a pressure sensor, a combination of a dust sensor and a temperature sensor, or a combination of a temperature sensor and a pressure sensor.
Preferably, the security level output terminal comprises an audible and visual alarm or a multicolor alarm.
When the end server outputs the security level result to the security level output terminal, different sound and/or light alarm modes can be matched according to the classification of the security level, for example, when the security level result is smaller than the preset security level limit, the alarm lamp is green, and represents no risk, security or low risk, security; when the safety level result is equal to the preset safety level limit, the alarm lamp can be set to be yellow, and the alarm lamp represents low risk and suggests investigation; when the safety level result is greater than the preset safety level limit, the alarm lamp can be set to be orange or red, and the alarm lamp respectively represents medium risk, high risk and evacuation. Those skilled in the art can select an alarm mode matched with the security level according to actual needs.
In a second aspect, the present invention provides a coal mine environment safety monitoring method, which is performed in the system of the first aspect, and includes the following steps:
in a monitoring period, the end server firstly collects environment information in a first time length range and matches the security level to a first security level:
when the first security level=0, outputting a security level result, and entering the next monitoring period;
when the first security level is not equal to 0, collecting new environment information in a second time length range and/or a third time length range, wherein the first time length range is larger than the second time length range and larger than the third time length range, matching the corresponding new security levels respectively, and adding correction levels according to the numerical relation between the security level in the current time length range and the security level in the previous time length range;
and outputting corresponding environment information, personnel position information and personnel identity information exceeding the preset safety level limit to a main server to enter the next monitoring period.
In the method, an end server is utilized to monitor environmental information step by step in a monitoring period, when the security level=0, the method represents no risk and security, and when the security level is not equal to 0, the method represents different risk degrees. Therefore, when the first security level in the first time period is not equal to 0, monitoring needs to be performed in the second time period range and/or in the third time period range, and the monitored time period range is shorter and shorter, so that the monitoring result of the last time period can be verified quickly, the total monitoring time is not prolonged excessively, multiple times of verification of the centering risk result can be achieved, errors are reduced, the generation and uploading effects of data quantity are reduced, and meanwhile, the high-risk result can be responded quickly and output or alarm in time.
As a preferable technical scheme of the invention, environmental information acquisition is carried out at a first frequency, a second frequency and a third frequency in the first time length range, the second time length range and the third time length range respectively, and the first frequency is less than the second frequency and less than the third frequency.
Besides different time length ranges in one period, the monitoring frequency of the sensor operation can be further controlled in each time length, namely the monitoring times in the time length, in the longer time length range, the monitoring frequency can be reasonably reduced, especially when tunneling and stoping are not operated, the generation of data volume can be effectively reduced, the working pressure of the sensor is reduced, but the monitoring frequency is reasonably increased along with the reduction of the time length range, so that the accuracy of the monitoring result in the shorter time length range is ensured.
Preferably, the first time period is in the range of 40 to 60s, such as 40s, 42s, 44s, 46s, 48s, 50s, 52s, 54s, 56s, 58s or 60s, etc., the second time period is in the range of 6 to 10s, such as 6s, 6.5s, 7s, 7.5s, 8s, 8.5s, 9s, 9.5s or 10s, etc., and the third time period is in the range of 2 to 5s, such as 2s, 2.5s, 3s, 3.5s, 4s, 4.5s or 5s, etc., but not limited to the recited values, and other non-recited values within the above-recited ranges are equally applicable.
Preferably, the first frequency is 8 to 10 s/time, such as 8 s/time, 8.2 s/time, 8.4 s/time, 8.6 s/time, 8.8 s/time, 9 s/time, 9.2 s/time, 9.4 s/time, 9.6 s/time, 9.8 s/time or 10 s/time, the second frequency is 2 to 3 s/time, such as 2 s/time, 2.2 s/time, 2.4 s/time, 2.6 s/time, 2.8 s/time or 3 s/time, and the third frequency is 1 s/time or real-time monitoring, but is not limited to the recited values, and other non-recited values within the above range of values are equally applicable.
According to the preferred technical scheme, the method for matching the security level comprises the step of matching the security level according to the relation between the average value of the environmental information in the current time period and the first threshold value and the second threshold value.
Preferably, the security level is 0 when the average value size of the environmental information is less than the first threshold value; when the average value of the first threshold value is less than or equal to the environment information and less than the second threshold value, the security level is 1; and when the average numerical value of the environment information is more than or equal to a second threshold value, the security level is 2.
As a preferred technical scheme of the invention, when the first security level=1, new environmental information is collected in a second duration range and a third duration range in sequence, the corresponding security levels are respectively matched to be a second security level and a third security level, the first correction level is increased according to the numerical relation between the second security level and the first security level, and the second correction level is increased according to the numerical relation between the third security level and the second security level;
the sum of the first security level, the second security level, the third security level, the first correction level, and the second correction level is the total security level.
When the first security level=1, the security risk condition is not the highest, and the reliability of the monitoring result of the first duration is low due to factors such as change of the working environment and measurement errors, so that repeated monitoring is needed in sequence in the second duration, the third duration is monitored again to verify the security level result, the correction level is provided according to the variation trend of the monitoring result displayed in the three durations, the accuracy of the final total security level is enhanced, and error and fluctuation data can be effectively filtered after repeated monitoring for many times, so that the more accurate, stable and refined total security level is finally formed.
Preferably, when the second security level-first security level= -1, the first correction level= -1; when the second security level-first security level=0, the first correction level=1; when the second security level-first security level=1, the first correction level=2.
Preferably, when the third security level-second security level = -2, the second correction level = -1; when the third security level-second security level= -1, the second correction level = 0; when the third security level-the second security level=0, the second correction level=1; when the third security level-the second security level=1, the second correction level=2; when the third security level-the second security level=2, the second correction level=3.
As a preferable technical scheme of the invention, when the first security level=2, new environment information is directly collected in a third duration range, the corresponding security level is matched to be a fourth security level, and a third correction level is added according to the numerical relation between the fourth security level and the first security level; the sum of the first security level, the fourth security level, and the third revision level is the total security level.
When the first security level=2, the security risk reaches the highest, in order to avoid delay of the alarm information, the monitoring is directly performed in a third duration range with the shortest duration range, and a fourth correction level is added according to the monitoring result and the change trend of the first security level, so that the influence caused by errors and fluctuation is reduced, and the high risk condition is rapidly identified.
Preferably, when the fourth security level-first security level = -2, the third correction level = 0; when the fourth security level-first security level=1, the third correction level=2; when the fourth security level-first security level=0, the third correction level=4.
As a preferable technical scheme of the invention, the coal mine environment safety monitoring method further comprises the following steps:
the main server receives and stores the environment information exceeding the limit of the preset safety level, the corresponding safety level, personnel position information and personnel identity information, analyzes and generates three-dimensional space safety information with the safety level, the personnel position information and the personnel identity information through the GIS module, and updates the three-dimensional space safety information in the next monitoring period.
Preferably, the preset security level limit is the median of the range of values of the security level.
As a preferred technical solution of the present invention, the duration range of the monitoring period varies in different operation processes.
Preferably, when the tunneling and the stoping are operated simultaneously, the time range of the monitoring period is shortest, and when neither the tunneling nor the stoping is operated, the monitoring time range of the monitoring period is longest.
In the same operation process, the method for monitoring the coal mine environment safety further comprises the step of analyzing the environment information exceeding the preset safety level limit according to the monitoring period as a unit, and adjusting the first threshold, the second threshold and the preset safety level limit according to the monitoring requirement and the target.
Compared with the prior art, the invention has at least the following beneficial effects:
according to the system, the environment information acquisition terminals are arranged at different monitoring positions, the end servers are used for preprocessing, the obtained size relation between the safety level and the preset safety level limit is obtained according to the processing result, and then the environment information exceeding the preset safety level limit, the corresponding safety level, personnel position information and personnel identity information are selectively transmitted to the main server, so that the working pressure can be shared in the aspects of analyzing and screening the environment information, calculating and matching the safety level, the identification accuracy of the safety level is improved, and the total data quantity and the data size which are uploaded are reduced; further, the main server analyzes and generates three-dimensional space safety information according to the uploaded and stored data, and feedback and monitoring of the safety level are effectively achieved. By using the system and the method, the underground safety problem of the coal mine can be effectively monitored, accurate and timely automatic informatization prediction and early warning are realized, and effective help is provided for processing safety accidents.
Drawings
FIG. 1 is a schematic diagram of a coal mine environment safety monitoring system provided by the invention.
Detailed Description
The technical scheme of the invention is further described by the following specific embodiments. It will be apparent to those skilled in the art that the examples are merely to aid in understanding the invention and are not to be construed as a specific limitation thereof.
The following embodiments and comparative examples are all performed in a coal mine environment safety monitoring system, as shown in fig. 1, which comprises environment information acquisition terminals installed in different areas in the pit, wherein each group of environment information acquisition terminals is connected with a corresponding end server; the terminal server is also connected with a security level output terminal and is connected with an upper-level main server through a network switch, and the network switch is also connected with a monitoring host;
the end server comprises an environment information acquisition module, a personnel position acquisition module, a personnel identity acquisition module, an analysis module and a management and control module; the terminal server is configured to control the environment information acquisition terminal to acquire and analyze environment information, calculate and match a security level according to the environment information, output a security level result to the security level output terminal, and output the environment information exceeding a preset security level limit, and the security level, personnel position information and personnel identity information corresponding to the environment information to the main server;
the main server comprises a storage module, a GIS module and a management and control module; the main service is configured to store environment information exceeding the limit of a preset safety level, and corresponding safety level, personnel position information and personnel identity information at the moment, and analyze and generate three-dimensional space safety information updated according to a monitoring period;
the installation positions of the environment information acquisition terminal are respectively a tunneling machine air return side of a tunneling working face, a coal mining machine air return side of a coal mining working face, and a corner, an air inlet roadway and an air return roadway of the coal mining working face;
each group of environment information acquisition terminals comprises a gas sensor, an oxygen sensor and a dust sensor;
the safety level output terminal is a four-color alarm and has the functions of green light, yellow light, orange light and red light alarm respectively.
Example 1
The embodiment provides a coal mine environment safety monitoring method, which is carried out in the coal mine environment safety monitoring system, and comprises the following steps:
s1, setting by a monitoring host:
setting a first time length range to be 40s, a second time length range to be 8s, a third time length range to be 3s, a first frequency to be 10 s/time, a second frequency to be 2 s/time, and a third frequency to be monitored in real time;
setting a first threshold value, a second threshold value and a preset safety level limit of environment information (comprising a gas signal, an oxygen signal and a dust signal) respectively, wherein the preset safety level limit is a median value of a numerical range of the safety level;
setting the security level to be 0 when the average value of the environment information is less than the first threshold value; when the average value of the first threshold value is less than or equal to the environment information and less than the second threshold value, the security level is 1; when the average numerical value of the environmental information is more than or equal to a second threshold value, the security level is 2;
the settings are transmitted to a main server and each end server through a network switch;
s2, the system is operated, and in a monitoring period, the end server firstly collects environment information in a first time length range at a first frequency and matches the security level with a first security level:
when the first security level=0, outputting a security level result to a four-color alarm for displaying alarm, outputting the security level result to a main server, displaying text information on a monitoring host, and entering the next monitoring period;
when the first security level=1, collecting environmental information at a second frequency in a second duration range in sequence and matching the second security level, and increasing the first correction level according to the numerical relation between the second security level and the first security level: when the second security level-first security level = -1, the first correction level = -1; when the second security level-first security level=0, the first correction level=1; when the second security level-first security level=1, the first correction level=2; then, environmental information is collected at a third frequency in a third duration range, a third security level is matched, and a second correction level is added according to the numerical relation between the third security level and the second security level: when the third security level-second security level = -2, the second correction level = -1; when the third security level-second security level= -1, the second correction level = 0; when the third security level-the second security level=0, the second correction level=1; when the third security level-the second security level=1, the second correction level=2; when the third security level-the second security level=2, the second correction level=3; the sum of the first security level, the second security level, the third security level, the first correction level, and the second correction level is the total security level; outputting a security level result to a four-color alarm to display green alarm, outputting the security level result to a main server, displaying text information on a monitoring host, and entering the next monitoring period;
when the first security level=2, collecting the environmental information at a third frequency directly in a third duration range and matching the fourth security level, and increasing a third correction level according to the numerical relation between the fourth security level and the first security level: when fourth security level-first security level= -2, the third correction level = 0; when the fourth security level-first security level=1, the third correction level=2; when the fourth security level-first security level=0, the third correction level=4; the sum of the first security level, the fourth security level and the third correction level is the total security level; outputting a security level result to a four-color alarm to display green alarm, outputting the security level result to a main server, displaying text information on a monitoring host, and entering the next monitoring period;
s3, preparing environment information exceeding the limit of a preset safety level in the monitoring period by the end server while carrying out the step S2, acquiring personnel position information and personnel identity information, and outputting the information to the main server. The main server stores the information, analyzes and generates three-dimensional space safety information with safety level, personnel position information and personnel identity information through a GIS module, and updates the three-dimensional space safety information in the next monitoring period;
in the process, after the security level result is output to the security level output terminal and the main service, the alarm mode is carried out according to the following rules: the value of the initial preset safety level limit is 4; when the safety level is 0-2, the four-color alarm displays green alarm, and the monitoring host displays no risk and safety; when the safety level is 3-4, the four-color alarm displays yellow alarm, and the monitoring host displays low risk and recommended investigation; when the safety level is 5-6, the four-color alarm displays orange alarm, and the monitoring host displays medium risk and immediately checks; when the safety level is 7-8, the four-color alarm displays red alarm, the monitoring host displays high risk and immediately withdraws.
Comparative example 1
The comparison example provides a coal mine environment safety monitoring method, which is carried out in the coal mine environment safety monitoring system, the coal mine environment safety monitoring method does not carry out step-by-step monitoring in one monitoring period, the correction level is not increased, the environment information is continuously collected in real time in one monitoring period only through an end server, and the safety level is matched according to the average numerical value of the environment information in the monitoring period: when the average value of the environmental information is less than the first threshold value, the security level is 0; when the average value of the first threshold value is less than or equal to the environment information and less than the second threshold value, the security level is 1; when the average numerical value of the environmental information is more than or equal to a second threshold value, the security level is 2; and transmitting the security level and all environmental information in the monitoring period to a main server for storage and analysis.
Compared with comparative example 1, the method provided in example 1 uses the end server to collect environmental information in multiple conditions and multiple steps in one period, analyzes and matches the safety level and the correction level, and more finely divides the safety level result, and meanwhile, reduces the reliability and the accuracy of the safety level caused by the error and fluctuation of the environmental information collection; and then, environmental information exceeding the limit of a preset security level is selectively selected and transmitted to an upper-level main server, so that monitoring workload is reasonably distributed, and the processing problem caused by excessive data is reduced. And simultaneously, the main server is utilized to store and analyze the environment information exceeding the limit of the preset security level, the security level matched with the environment information and the personnel position identity information, and the environment information is processed into the three-dimensional space security information updated according to the monitoring period. By using the system and the method, the underground safety problem of the coal mine can be effectively monitored, accurate and timely automatic informatization prediction and early warning are realized, and effective help is provided for processing safety accidents.
The detailed structural features of the present invention are described in the above embodiments, but the present invention is not limited to the above detailed structural features, that is, it does not mean that the present invention must be implemented depending on the above detailed structural features. It should be apparent to those skilled in the art that any modifications of the present invention, equivalent substitutions of selected components of the present invention, addition of auxiliary components, selection of specific modes, etc., are within the scope of the present invention and the scope of the disclosure.
The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the scope of the technical concept of the present invention, and all the simple modifications belong to the protection scope of the present invention.
In addition, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further.
Moreover, any combination of the various embodiments of the invention can be made without departing from the spirit of the invention, which should also be considered as disclosed herein.
Claims (10)
1. The coal mine environment safety monitoring system is characterized by comprising environment information acquisition terminals arranged in different underground areas, wherein each group of environment information acquisition terminals are connected with corresponding end servers; the terminal server is also connected with a security level output terminal and is connected with an upper-level main server through a network switch, and the network switch is also connected with a monitoring host;
the end server comprises an environment information acquisition module, a personnel position acquisition module, a personnel identity acquisition module, an analysis module and a management and control module; the terminal server is configured to control the environment information acquisition terminal to acquire and analyze environment information, calculate and match a security level according to the environment information, output a security level result to the security level output terminal, and output the environment information exceeding a preset security level limit, and the security level, personnel position information and personnel identity information corresponding to the environment information to the main server;
the main server comprises a storage module, a GIS module and a management and control module; the main service is configured to store environment information exceeding a preset security level limit, and security level, personnel position information and personnel identity information corresponding to the environment information, analyze and generate three-dimensional space security information updated according to a monitoring period.
2. The coal mine environment safety monitoring system according to claim 1, wherein the installation position of the environment information acquisition terminal comprises a tunneling working face, a coal mining working face, an air inlet roadway and an air return roadway;
preferably, the installation position in the tunneling working face comprises any one or a combination of at least two of a tunneling machine air return side, various working point air return sides and a breathing zone between a dust generating point and a dust remover;
preferably, the installation position of the coal face comprises any one or a combination of at least two of a coal cutter return air side, a driver working point or a corner on the coal face;
preferably, each group of the environmental information collection terminals comprises any one or a combination of at least two of a gas sensor, an oxygen sensor, a dust sensor, a pressure sensor and a temperature sensor;
preferably, the security level output terminal comprises an audible and visual alarm or a multicolor alarm.
3. A method for monitoring the safety of coal mine environment, which is characterized in that the method is carried out in the system as claimed in claim 1 or 2 and comprises the following steps:
in a monitoring period, the end server firstly collects environment information in a first time length range and matches the security level to a first security level:
when the first security level=0, outputting a security level result, and entering the next monitoring period;
when the first security level is not equal to 0, collecting new environment information in a second time length range and/or a third time length range, wherein the first time length range is larger than the second time length range and larger than the third time length range, matching the corresponding new security levels respectively, and adding correction levels according to the numerical relation between the security level in the current time length range and the security level in the previous time length range;
and outputting corresponding environment information, personnel position information and personnel identity information exceeding the preset safety level limit to a main server to enter the next monitoring period.
4. A coal mine environmental safety monitoring method according to claim 3, wherein environmental information is collected at a first frequency, a second frequency and a third frequency in the first time period range, the second time period range and the third time period range, respectively, and the first frequency is less than the second frequency is less than the third frequency;
preferably, the first time length range is 40-60 s, the second time length range is 6-10 s, and the third time length range is 2-5 s;
preferably, the first frequency is 8-10 s/time, the second frequency is 2-3 s/time, and the third frequency is 1 s/time or real-time monitoring.
5. The method for monitoring the safety of the coal mine environment according to claim 3 or 4, wherein the method for matching the safety level comprises matching the safety level according to the relationship between the average value of the environmental information in the current time period and the first threshold value and the second threshold value;
preferably, the security level is 0 when the average value size of the environmental information is less than the first threshold value; when the average value of the first threshold value is less than or equal to the environment information and less than the second threshold value, the security level is 1; and when the average numerical value of the environment information is more than or equal to a second threshold value, the security level is 2.
6. The method for monitoring the environmental safety of the coal mine according to claim 5, wherein when the first safety level=1, new environmental information is collected in a second duration range and a third duration range in sequence, the corresponding safety levels are respectively matched to be a second safety level and a third safety level, the first correction level is increased according to the numerical relation between the second safety level and the first safety level, and the second correction level is increased according to the numerical relation between the third safety level and the second safety level;
the sum of the first security level, the second security level, the third security level, the first correction level, and the second correction level is the total security level;
preferably, when the second security level-first security level= -1, the first correction level= -1; when the second security level-first security level=0, the first correction level=1; when the second security level-first security level=1, the first correction level=2;
preferably, when the third security level-second security level = -2, the second correction level = -1; when the third security level-second security level= -1, the second correction level = 0; when the third security level-the second security level=0, the second correction level=1; when the third security level-the second security level=1, the second correction level=2; when the third security level-the second security level=2, the second correction level=3.
7. The method according to claim 5 or 6, wherein when the first security level=2, new environmental information is directly collected in a third duration range, the corresponding security level is matched to be a fourth security level, and a third correction level is added according to a numerical relation between the fourth security level and the first security level; the sum of the first security level, the fourth security level and the third correction level is the total security level;
preferably, when the fourth security level-first security level = -2, the third correction level = 0; when the fourth security level-first security level=1, the third correction level=2; when the fourth security level-first security level=0, the third correction level=4.
8. The coal mine environmental safety monitoring method of any one of claims 3-7, further comprising:
the main server receives and stores environment information exceeding the limit of a preset safety level, and corresponding safety level, personnel position information and personnel identity information at the moment, analyzes and generates three-dimensional space safety information with the safety level, the personnel position information and the personnel identity information through a GIS module, and updates the three-dimensional space safety information in the next monitoring period;
preferably, the preset security level limit is the median of the range of values of the security level.
9. The coal mine environment safety monitoring method according to claim 8, wherein the duration range of the monitoring period is changed in different operation processes;
preferably, when the tunneling and the stoping are operated simultaneously, the time range of the monitoring period is shortest, and when neither the tunneling nor the stoping is operated, the monitoring time range of the monitoring period is longest.
10. The method of claim 9, further comprising analyzing environmental information exceeding a preset safety level limit in units of monitoring periods in the same operation process, and adjusting the first threshold, the second threshold, and the preset safety level limit according to monitoring requirements and targets.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117543838A (en) * | 2024-01-09 | 2024-02-09 | 北京航天常兴科技发展股份有限公司 | Safety monitoring system based on coal mine power supply |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117543838A (en) * | 2024-01-09 | 2024-02-09 | 北京航天常兴科技发展股份有限公司 | Safety monitoring system based on coal mine power supply |
| CN117543838B (en) * | 2024-01-09 | 2024-05-03 | 鄂尔多斯市昊华精煤有限责任公司 | Safety monitoring system based on coal mine power supply |
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