Coal mine safety early warning method and device, electronic equipment and medium

Abstract

The invention provides a coal mine safety early warning method and device, electronic equipment and a medium, and relates to the field of coal mine production. The coal mine safety early warning method comprises the steps that target sensors are used for collecting safety data of a coal mine, the target sensors comprise a low-power-consumption laser methane sensor, a self-diagnosis sensor and a multi-parameter sensor, the target sensors are deployed on a working face of the coal mine, and the distance from the target sensors to a central station does not exceed three layers in a network topology structure; according to the safety data, different early warning levels are determined, an alarm is given, and the safety data comprise the gas concentration of the monitoring working face, the overrun duration of the gas concentration and the overrun range; and responding to the alarm, and performing graded response according to the early warning grade. Through the technical scheme provided by the invention, the problems of insufficient risk early warning and assessment reliability and low safety management efficiency in coal mine production in related technologies are solved, and the risk early warning and assessment reliability and the safety management efficiency are improved.

Description

Technical Field

[0001] The present disclosure relates to the field of coal mine production, and in particular to a coal mine safety early warning method, device, electronic equipment and medium. Background Art

[0002] In order to implement the dual preventive work mechanism of risk classification control and hidden danger investigation and treatment in the field of coal mine production, and to push the safety production threshold forward, coal mine enterprises have deployed monitoring and surveillance systems, and deployed sensors underground in coal mines to monitor the concentration of gases such as gas and carbon monoxide. In related technologies, the data collected by each sensor is directly used for risk warning and risk assessment, which is not reliable enough and has low safety management efficiency. Summary of the invention

[0003] The present invention discloses a coal mine safety early warning method, device, electronic equipment and medium to solve the problems of insufficient reliability of risk early warning and assessment in coal mine production and low safety management efficiency in related technologies. By combining and analyzing the data collected by a single sensor, sensors on the same working surface, and sensors in adjacent areas, different early warning levels are divided for alarm.

[0004] A first aspect of the present disclosure provides a coal mine safety early warning method, the method comprising:

[0005] Use target sensors to collect safety data of coal mines. The target sensors include low-power laser methane sensors, self-diagnosis sensors, and multi-parameter sensors. The target sensors are deployed on the working face of the coal mine, and the distance from the target sensors to the central station in the network topology is no more than 3 layers;

[0006] Determine different warning levels and issue alarms based on safety data, where safety data includes monitoring the gas concentration at the working surface, the duration of gas concentration exceeding the limit, and the range of exceeding the limit;

[0007] In response to the alarm, a graded response is performed according to the warning level.

[0008] In one embodiment of the present disclosure, different warning levels are determined and an alarm is issued according to security data, including:

[0009] Determine, according to the concentration range of the gas concentration, a first sensor for monitoring excessive gas concentration and a duration of continuous excessive concentration of the first sensor;

[0010] Count the working surface sensors on the same working surface among the first sensors;

[0011] Counting neighboring sensors of the first sensor in adjacent areas in the network topology structure;

[0012] Determine the warning level based on the concentration range and duration of continuous exceeding the standard, and / or,

[0013] Determine the warning level based on the concentration range, working surface sensors and neighborhood sensors.

[0014] In one embodiment of the present disclosure, the warning level is determined according to the concentration range and the duration of continuous exceeding the standard, including:

[0015] If the duration of continuous exceeding the standard is less than or equal to the first duration, the warning level is determined according to the concentration range;

[0016] If the duration of continuous exceeding the standard is greater than the first duration and less than or equal to the second duration, the warning level is determined according to the concentration range and the duration influencing factor, wherein the longer the duration of continuous exceeding the standard is, the greater the duration influencing factor is, and the higher the warning level is;

[0017] If the duration of exceeding the standard is longer than the second duration, the warning level will be set to the first level.

[0018] In one embodiment of the present disclosure, the warning level is determined according to the concentration range, the working surface sensor and the neighborhood sensor, including:

[0019] If the concentration range is the first concentration range, the warning level is set to the fourth level;

[0020] If the concentration range is the second concentration range and the number of working surface sensors is greater than or equal to two, the warning level is set to the third level;

[0021] If the concentration range, the working surface sensor, and the neighborhood sensor meet any one of the first preset conditions, the warning level is set to the second level, the first preset condition includes that the concentration range is the third concentration range, the number of working surface sensors is greater than or equal to two, and the working surface sensor includes a sensor with a concentration range of the second concentration range, and the neighborhood sensor includes a sensor with a concentration range of the second concentration range;

[0022] If the concentration range, the working surface sensor and the neighborhood sensor meet any one of the second preset conditions, the warning level is set to the first level. The second preset conditions include that the concentration range is the fourth concentration range, the number of working surface sensors is greater than or equal to two, and the working surface sensor includes a sensor with a concentration range of the third concentration range, and the neighborhood sensor includes a sensor with a concentration range of the third concentration range. The priorities of the first level, the second level, the third level to the fourth level decrease in sequence, and the first concentration range, the second concentration range, the third concentration range and the fourth concentration range do not have an intersection, and they increase in sequence.

[0023] In one embodiment of the present disclosure, the method further includes:

[0024] Cluster the security data to obtain the target locations of sensors with different security levels;

[0025] According to the security level, an alarm message is sent to the personnel at the target location.

[0026] In one embodiment of the present disclosure, in response to an alarm, a graded response is performed according to the warning level, including:

[0027] Sending an alarm message to the first object according to the warning level;

[0028] In response to the first response information of the first object, second response information is sent to the second object, wherein the priority of the first object is higher than that of the second object.

[0029] The second aspect of the present disclosure provides a coal mine safety early warning device, which includes:

[0030] The acquisition module is used to collect safety data of the coal mine using target sensors. The target sensors include low-power laser methane sensors, self-diagnosis sensors, and multi-parameter sensors. The target sensors are deployed on the working face of the coal mine, and the distance from the target sensors to the central station does not exceed 3 layers in the network topology structure.

[0031] A determination module is used to determine different warning levels and issue an alarm based on safety data, wherein the safety data includes the gas concentration of the monitored working surface, the duration of the gas concentration exceeding the limit, and the range of the gas concentration exceeding the limit;

[0032] The response module is used to respond to the alarm and make a graded response according to the warning level.

[0033] The third aspect embodiment of the present disclosure proposes an electronic device, comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute any one of the methods in the first aspect embodiment of the present disclosure.

[0034] The fourth aspect embodiment of the present disclosure proposes a non-transitory computer-readable storage medium storing computer instructions, characterized in that the computer instructions are used to enable a computer to execute the method in the first aspect embodiment of the present disclosure.

[0035] The fifth aspect embodiment of the present disclosure proposes a computer program product, characterized in that it includes a computer program, and when the computer program is executed by a processor, it implements any method in the first aspect embodiment of the present disclosure.

[0036] In summary, the coal mine safety early warning method proposed in this disclosure has the following beneficial effects compared with the prior art:

[0037] Target sensors are used to collect safety data of coal mines. The target sensors include low-power laser methane sensors, self-diagnostic sensors and multi-parameter sensors. The target sensors are deployed on the working face of the coal mine, and the distance from the target sensor to the central station in the network topology is no more than 3 layers, which provides a data source for coal mine safety early warning. According to the safety data, different early warning levels are determined and alarms are issued. Among them, the safety data includes monitoring the gas concentration of the working face, the duration of the gas concentration exceeding the limit and the range of the gas concentration exceeding the limit, so as to obtain more reliable risk early warning and assessment results in coal mine production. In response to the alarm, a graded response is carried out according to the early warning level, which improves the efficiency of safety management.

[0038] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The drawings herein are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the description are used to explain the principles of the present disclosure, and do not constitute improper limitations on the present disclosure.

[0040] Figure 1 This is a flow chart of a coal mine safety early warning method according to an embodiment of the present disclosure;

[0041] Figure 2 This is a flow chart of determining different warning levels and issuing an alarm according to security data according to an embodiment of the present disclosure;

[0042] Figure 3 This is a flow chart of determining the warning level according to the concentration range and the duration of continuous exceeding the standard according to an embodiment of the present disclosure;

[0043] Figure 4 A flowchart of determining an early warning level according to a concentration range, a working surface sensor, and a neighborhood sensor according to an embodiment of the present disclosure;

[0044] Figure 5 This is a flow chart of an embodiment of the present disclosure for alerting personnel according to security levels;

[0045] Figure 6 A flowchart of responding to an alarm and performing a graded response according to the warning level according to an embodiment of the present disclosure;

[0046] Figure 7 This is an architecture diagram of a coal mine safety monitoring system according to an embodiment of the present disclosure;

[0047] Figure 8 It is a structural schematic diagram of a coal mine safety early warning device according to an embodiment of the present disclosure;

[0048] Fig. 9is a block diagram of an electronic device for implementing the coal mine safety early warning method disclosed in the present invention according to an exemplary embodiment;

[0049] Fig.10 It is a schematic diagram of the structure of the chip of the embodiment of the present disclosure. DETAILED DESCRIPTION

[0050] Embodiments of the present disclosure are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout identify the same or similar originals or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present disclosure, and should not be construed as limiting the present disclosure.

[0051] In the process of coal mine production, various accidents are prone to occur, mainly due to the following factors:

[0052] Inadequate safety management: Many coal mining companies have failed to effectively implement their main responsibility for safe production and lack professional safety management personnel and a sound safety management system, resulting in frequent safety hazards.

[0053] Poor implementation of anti-blowout measures: In working faces with higher risks of coal and gas outbursts, anti-blowout measures were not strictly implemented, the number of pre-gas extraction holes was insufficient, and the extraction time was insufficient, leading to outburst accidents.

[0054] Incomplete hidden danger detection and control: Coal mining enterprises fail to conduct comprehensive hidden danger detection in daily operations, lack effective rectification measures for identified hidden dangers, and even conceal major hidden dangers.

[0055] Weak technical management: Some coal mines lack the necessary technical support and scientific management, have insufficient understanding of geological conditions and risk factors, and fail to adjust mining plans in a timely manner to adapt to actual conditions.

[0056] Insufficient employee training: Employees have weak safety awareness and lack the necessary safety training and emergency drills, resulting in the inability to take effective measures in a timely manner in emergency situations.

[0057] Aging and improperly maintained equipment: Some coal mines use old equipment and do not conduct regular maintenance and inspections, increasing the risk of accidents.

[0058] In order to avoid accidents caused by the above reasons, theoretical and technical research on the construction of a dual prevention system for coal mine risk classification control and hidden danger investigation and treatment is carried out from four aspects. First, a three-level dual prevention system of government regulatory departments, mining groups and coal mining enterprises; second, IT infrastructure such as safety technology and equipment required for the establishment of a dual prevention system; third, information technology for the construction and management of a dual prevention system; fourth, standardized promotion and application of a dual prevention system in coal mines. Sensor-based safety warnings can detect the concentration of gases such as gas and carbon monoxide in coal mines in a timely manner, and can reflect the links or areas in coal mines that may have risks. In related technologies, a monitoring system is deployed for coal mines, and risk warnings and risk assessments are directly performed through the data collected by each sensor, which has the problems of insufficient reliability and low safety management efficiency.

[0059] The method proposed in the present disclosure is applied to the coal mine safety early warning task, and its application has a rich range of scenarios. In the coal mine safety monitoring and early warning scenario, harmful gases (such as methane, carbon monoxide, etc.) in the coal mine are monitored in real time, and early warning is issued according to the change of gas concentration to prevent gas explosions and other safety accidents. In the environmental monitoring and management scenario, gas emissions are monitored in the surrounding environment of the coal mine, the impact on the surrounding ecological environment is evaluated, and data support is provided for environmental protection. In the intelligent mine construction scenario, the Internet of Things technology is combined to realize the intelligent management of coal mines, and the production process is optimized through data analysis to improve safety and efficiency. In the emergency response and decision support scenario, when abnormal gas concentration occurs, the system can automatically trigger emergency response measures, such as ventilation adjustment, personnel evacuation, etc., to ensure the safety of miners. In the risk assessment and management scenario, the risk level in coal mine operations is evaluated by analyzing gas concentration data, providing a basis for safety management and formulating corresponding preventive measures. In the training and education scenario, gas monitoring data is used for safety training to improve miners' awareness and response capabilities to potential dangers. In policy formulation and implementation, real-time data is provided to the government and regulatory agencies to support policy formulation and implementation and promote the implementation of coal mine safety regulations. Through the above application scenarios, the safety management level of coal mines can be effectively improved, the accident rate can be reduced, and the life safety and health of miners can be protected. The application scenarios are not limited in the embodiments of this disclosure.

[0060] The coal mine safety early warning method provided by the present disclosure is described in detail below with reference to the accompanying drawings.

[0061] Figure 1 FIG. 1 is a flow chart of a coal mine safety early warning method according to an embodiment of the present disclosure. Figure 1 In the embodiment shown, the coal mine safety early warning method includes:

[0062] Step 101, using target sensors to collect safety data of the coal mine, the target sensors include low-power laser methane sensors, self-diagnosis sensors and multi-parameter sensors, the target sensors are deployed on the working face of the coal mine, and the distance from the target sensor to the central station in the network topology structure does not exceed 3 layers.

[0063] Target sensors refer to various sensors deployed on the working surface of a coal mine, including low-power laser methane sensors, self-diagnostic sensors, and multi-parameter sensors. Preferably, the target sensor is a low-power laser methane sensor. In the network topology of the coal mine monitoring system, the target sensor is no more than 3 floors away from the central station to ensure timely and accurate data transmission. The target sensor collects safety data of the coal mine and records the gas concentration data of the working surface of the coal mine.

[0064] Step 102, according to the safety data, different warning levels are determined and an alarm is issued, wherein the safety data includes the gas concentration of the monitored working surface, the duration of the gas concentration exceeding the limit, and the range of the gas concentration exceeding the limit.

[0065] The warning level refers to the estimated level of possible risks in coal mines. Safety data includes the gas concentration of the monitored working face, the duration of the gas concentration exceeding the limit, and the range of the exceeding limit. For example, the methane concentration in the working face air is monitored to exceed the standard, the duration of the methane exceeding the standard, and the preset exceeding value range of the exceeding methane concentration. According to the safety data collected by the target sensor, a comprehensive analysis and judgment can be carried out to determine different warning levels, and risks can be identified and alarms can be issued according to different warning levels. The warning level can be any level exceeding 2. The more warning levels there are, the more refined the risk warning and control will be.

[0066] Step 103, in response to the alarm, a graded response is performed according to the warning level.

[0067] In response to alarms triggered by different warning levels, a graded response is made to the alarm to achieve refined risk control and improve safety management efficiency.

[0068] In summary, according to the coal mine safety early warning method proposed in the present invention, target sensors are used to collect safety data of coal mines. The target sensors include low-power laser methane sensors, self-diagnostic sensors and multi-parameter sensors. The target sensors are deployed at the working face of the coal mine, and the distance from the target sensor to the central station in the network topology structure does not exceed 3 layers, which provides a data source for coal mine safety early warning; according to the safety data, different early warning levels are determined and alarms are issued, wherein the safety data include monitoring the gas concentration of the working face, the duration of the gas concentration exceeding the limit and the range of the gas concentration exceeding the limit, so as to obtain more reliable risk early warning and assessment results in coal mine production; in response to the alarm, a graded response is made according to the early warning level, thereby improving the efficiency of safety management.

[0069] Figure 2 The present invention is a flowchart of an embodiment of the present invention for determining different warning levels and issuing an alarm according to security data. Figure 2 Yes Figure 1 Further explanation of step 102 is based on Figure 2 The embodiment shown comprises the following steps:

[0070] Step 201, determining a first sensor for monitoring excessive gas concentration and a duration of the excessive concentration of the first sensor according to a concentration range of the gas concentration.

[0071] The concentration range refers to the multiple ranges of values ​​into which the gas concentration value is divided. The first sensor is a sensor for detecting excessive gas concentration. If the gas concentration exceeds the standard, the concentration range in which it is located can be determined based on the current gas concentration value. The first sensor that detects excessive gas concentration is screened from the target sensors, and the duration of the continuous excessive gas concentration collected by the first sensor is recorded.

[0072] Step 202 , counting the working surface sensors in the first sensors that are located on the same working surface.

[0073] The working face sensor refers to the sensors deployed on all working faces of the coal mine. The first sensor that detects excessive gas concentration is located on the same working face as the working face sensor.

[0074] Step 203: Count neighboring sensors in adjacent areas of the first sensor in the network topology structure.

[0075] Neighborhood sensors refer to sensors of adjacent nodes in the network topology of the coal mine monitoring system. The neighboring sensors of the first sensor that monitors excessive gas concentration in the network topology are counted. For example, from the multiple sensors included in the first sensor, sensors with similar Internet Protocol (IP) addresses are used as neighborhood sensors.

[0076] Step 204, determining the warning level according to the concentration range and the duration of continuous exceeding the standard, and / or determining the warning level according to the concentration range, the working surface sensor and the neighborhood sensor.

[0077] The safety warning level is analyzed based on the concentration range of the gas concentration value that exceeds the standard and the duration of the continuous exceeding of the standard. Alternatively, the safety warning level is analyzed based on the concentration range of the gas concentration value that exceeds the standard, the number of sensors on the working face, and the number of sensors in the neighboring area. Alternatively, the two conditions for analyzing the safety warning level are used simultaneously to determine the warning level.

[0078] In this embodiment, by combining and analyzing the data collected by a single sensor, sensors on the same working surface, and sensors in adjacent areas, different warning levels are divided for alarm, thereby improving the reliability of risk warning and assessment and the efficiency of safety management.

[0079] Figure 3 The present invention is a flowchart of an embodiment of the present invention for determining a warning level according to a concentration range and a duration of continuous exceeding of a standard. Figure 3 Yes Figure 2 Further description of step 204 is made based on Figure 3 The embodiment shown comprises the following steps:

[0080] Step 301: If the duration of continuous exceeding of the standard is less than or equal to the first duration, determine the warning level according to the gas concentration.

[0081] The first duration is a time value, which is used to indicate that the sensor detects that the gas concentration exceeds the standard for a long time. If the duration of continuous exceeding the standard is less than or equal to the first duration, it means that the duration of continuous exceeding the standard is short, and the warning level is determined according to the gas concentration. For example, if the gas concentration is between 1 and 1.5 times the standard alarm value, the warning level is set to level 4; if the gas concentration is between 1.5 and 2 times the standard alarm value, the warning level is set to level 3; if the gas concentration is between 2 and 2.5 times the standard alarm value, the warning level is set to level 2; if the gas concentration is higher than 2.5 times the standard alarm value, the warning level is set to level 1.

[0082] Step 302: If the duration of continuous exceeding the standard is greater than the first duration and less than or equal to the second duration, the warning level is determined according to the concentration range and the duration influencing factor, wherein the longer the duration of continuous exceeding the standard is, the greater the duration influencing factor is, and the higher the warning level is.

[0083] Similar to the first duration, the second duration is a time value indicating that the gas concentration detected by the sensor exceeds the standard for a long time. The duration impact factor indicates the impact factor of the duration of the excess on the warning level. The longer the duration of the excess, the higher the warning level. If the duration of the excess is greater than the first duration and less than or equal to the second duration, the warning level is determined based on the concentration range and the duration impact factor. Specifically, if the gas concentration exceeds the standard within the same concentration range and the duration of the excess is longer, the warning level is higher.

[0084] Step 303: If the duration of exceeding the standard is longer than the second duration, the warning level is set to the first level.

[0085] The first level refers to the highest level among the warning levels. If the duration of continuous exceeding the standard is longer than the second duration, it means that the gas concentration has exceeded the standard for a very long time and needs to be dealt with immediately, and the warning level is set to the highest first level.

[0086] In a possible implementation of this embodiment, as shown in Table 1, the methane sensor is set to a graded alarm according to the over-limit time. When the continuous over-limit time is less than 1 minute, the warning level is determined according to the concentration range of the gas concentration. For example, the warning level with a concentration range of 1 to 1.5 times the standard alarm value is set to the fourth level; the warning level with a concentration range of 1.5 to 2 times the standard alarm value is set to the third level, the warning level with a concentration range of 2 to 2.5 times the standard alarm value is set to the second level, and the warning level with a concentration range of more than 2.5 times the standard alarm value is set to the first level. When the continuous over-limit time is greater than 1 minute and less than or equal to 30 minutes, the warning level with a concentration range of 1 to 1.5 times the standard alarm value is set to the third level, the warning level with a concentration range of 1.5 to 2 times the standard alarm value is set to the second level, and the warning level with a concentration range of more than 2 times the standard alarm value is set to the first level; the duration impact factor of the first level is greater than the duration impact factor of the second level. When the duration of continuous exceeding the standard is longer than 30 minutes and less than or equal to 60 minutes, the warning level for concentrations ranging from 1 to 1.5 times the standard alarm value is set to the second level, and the warning level for concentrations exceeding 1.5 times the standard alarm value is set to the first level. For the warning level for continuous exceeding the standard for more than 60 minutes, regardless of the concentration range, it is set to the first level.

[0087] Table 1 Methane sensor alarm settings according to over-limit time

[0088]

[0089] In this embodiment, the warning level is determined by the concentration range of the gas concentration exceeding the standard and the duration of the continuous exceeding of the standard, which prevents the hidden dangers of long-term existence of excessive gas and also gives a higher warning level to the gas that exceeds the standard seriously, so as to facilitate timely alarm and disposal.

[0090] Figure 4 This is a flow chart of an embodiment of the present disclosure for determining a warning level based on a concentration range, a working surface sensor, and a neighborhood sensor. Figure 4 Yes Figure 2 The specific description of step 204 is based on Figure 4 The embodiment shown comprises the following steps:

[0091] Step 401: If the concentration range is the first concentration range, the warning level is set to the fourth level.

[0092] The first concentration range refers to the numerical range where the gas concentration exceeds the standard value. The fourth level is the lowest level of the warning level. This level needs to record the alarm and report the alarm after other warning levels are processed. If the concentration range is the first concentration range, the warning level is set to the fourth level.

[0093] Step 402: If the concentration range is the second concentration range and the number of working surface sensors is greater than or equal to two, the warning level is set to the third level.

[0094] The second concentration range refers to the numerical range where the gas concentration exceeds the standard value, and its concentration is higher than the first concentration range. If the concentration range of the gas exceeding the standard concentration is the second concentration range, and at the same time, the number of working surface sensors is greater than or equal to two, it means that the gas concentration of the working surface exceeds the standard seriously, and the warning level is set to the third level.

[0095] Step 403, if the concentration range, the working surface sensor and the neighborhood sensor meet any one of the first preset conditions, the warning level is set to the second level, the first preset condition includes that the concentration range is the third concentration range, the number of working surface sensors is greater than or equal to two, and the working surface sensor includes a sensor with a concentration range of the second concentration range, and the neighborhood sensor includes a sensor with a concentration range of the second concentration range.

[0096] The third concentration range refers to the numerical range where the gas concentration exceeds the standard value, and its concentration is higher than the second concentration range. If the concentration range where the gas concentration exceeds the standard value, the number of working surface sensors, and the number of neighborhood sensors meet any one of the first preset conditions, the warning level is set to the second level. The first preset condition includes condition 1: the concentration range is the third concentration range; condition 2: the number of working surface sensors is greater than or equal to two, and the working surface sensors include a sensor with a concentration range of the second concentration range; condition 3: the neighborhood sensors include a sensor with a concentration range of the second concentration range.

[0097] Step 404, if the concentration range, the working surface sensor and the neighborhood sensor meet any one of the second preset conditions, the warning level is set to the first level, the second preset conditions include that the concentration range is the fourth concentration range, the number of working surface sensors is greater than or equal to two, and the working surface sensor includes a sensor with a concentration range of the third concentration range, and the neighborhood sensor includes a sensor with a concentration range of the third concentration range, wherein the priorities of the first level, the second level, the third level to the fourth level decrease in sequence, the first concentration range, the second concentration range, the third concentration range and the fourth concentration range do not have an intersection, and they increase in sequence.

[0098] The fourth concentration range refers to the numerical range where the gas concentration exceeds the standard value, and its concentration is higher than the third concentration range. If the concentration range where the gas concentration exceeds the standard value, the number of working surface sensors, and the number of neighborhood sensors meet any of the second preset conditions, the warning level is set to the first level. Among them, the second preset condition includes condition 1: the concentration range is the fourth concentration range. Condition 2: The number of working surface sensors is greater than or equal to two, and the working surface sensors include a sensor with a concentration range of the third concentration range. Condition 3: The neighborhood sensors include a sensor with a concentration range of the third concentration range. Among them, the priorities of the first level, the second level, the third level to the fourth level decrease in sequence. The first concentration range, the second concentration range, the third concentration range, and the fourth concentration range do not have an intersection, and they increase in sequence.

[0099] In a possible implementation of this embodiment, as shown in Table 2, the gas sensors are set to provide graded alarms based on the excessive gas concentration and the number of sensors.

[0100] If a single gas sensor detects that the gas concentration exceeds the standard and the concentration range is between 1 and 1.5 times the standard alarm value, and there is no concentration exceeding the standard monitored by other sensors, then the warning level is set to the fourth level.

[0101] Condition 1 is that the gas concentration detected by a single gas sensor is in the range of 1.5 to 2 times the marked alarm value, and condition 2 is that two or more gas sensors on the same working face detect gas concentrations exceeding the standard in the range of 1 to 1.5 times the marked alarm value. If either condition 1 or condition 2 is met, the warning level will be set to the third level.

[0102] Condition 1 is that the gas concentration detected by a single gas sensor is in the range of 2 to 2.5 times the marked alarm value; condition 2 is that two or more gas sensors on the same working face detect that the gas concentration exceeds the standard, and the concentration range of one of them is in the range of 1.5 to 2 times the marked alarm value; condition 3 is that gas sensors in adjacent areas simultaneously detect that the gas concentration exceeds the standard, and the gas concentration of one of them is in the range of 1.5 to 2 times the standard alarm value. If at least one of conditions 1, 2 and 3 is met, the warning level is set to the second level.

[0103] Condition 1 is that the concentration range of gas concentration detected by a single gas sensor is 2.5 times higher than the marked alarm value; condition 2 is that two or more gas sensors on the same working face detect that the gas concentration exceeds the standard, and the concentration range of one of them exceeds 2 times the marked alarm value; condition 3 is that gas sensors in adjacent areas simultaneously detect that the gas concentration exceeds the standard, and the concentration range of one of them exceeds 2 times the standard alarm value. If at least one of conditions 1, 2 and 3 is met, the warning level is set to the first level.

[0104] Table 2 Gas sensor alarm settings according to excessive gas concentration and number of sensors

[0105]

[0106] In this embodiment, by comprehensively considering the excessive value of the monitored gas concentration of a single sensor, the number of working surface sensors and the number of neighboring sensors, a reliable basis is provided for determining the warning level, thereby avoiding the problem of excessive warning level caused by the huge detection value of a certain sensor.

[0107] Figure 5 The present invention is a flowchart of an embodiment of the present invention for alerting personnel based on security levels. Figure 5 Yes Figure 4 The specific description of step 401 is based on Figure 5 The embodiment shown comprises the following steps:

[0108] Step 501 , clustering the security data to obtain target locations of sensors with different security levels.

[0109] The gas concentration data collected by the target sensor is clustered according to the geographical location to obtain the distribution of sensors with different concentration data in different geographical locations. The different concentration data are divided into multiple safety levels, and the location in the data set with higher concentration is taken as the target location.

[0110] Step 502: Send an alarm message to personnel at the target location based on the security level.

[0111] According to the safety level, an alarm message is sent to personnel at the target location, that is, personnel at a geographical location with high gas concentration, to prompt them to check equipment or evacuate the dangerous area.

[0112] In this embodiment, based on the clustering of gas concentrations, an abnormal concentration area is determined, and an alarm is notified to the personnel in the abnormal area, thereby ensuring timely repair of the fault or timely evacuation of the area to ensure the safety of the personnel.

[0113] Figure 6The present invention is a flowchart of an embodiment of the present invention for responding to an alarm and performing a graded response according to the warning level. Figure 6 Yes Figure 1 The specific description of step 103 is based on Figure 6 The embodiment shown comprises the following steps:

[0114] Step 601: Send an alarm message to a first object according to the warning level.

[0115] The first object refers to the object receiving the warning level information, which may be a coal mine worker, or a company or superior department responsible for coal mine safety inspection. According to the determined warning level, the alarm information is sent to the first object.

[0116] Step 602: In response to the first response information of the first object, second response information is sent to the second object, wherein the priority of the first object is higher than that of the second object.

[0117] After the first object makes a corresponding disposal response instruction according to the first warning level information, the second response information continues to be sent to the second object in response to the first response information of the first object, wherein the second response information is a warning level disposal instruction sent to the second object according to the first response information. The priority of the first object is higher than that of the second object, that is, when the warning level is the third level, the second level, and the first level, the warning level information is first sent to the first object, and then the warning level information is sent to the second object. For example, when the warning level is the first level, it is sent to the first object with a higher priority first, and according to the risk management and control instructions of the first object, the second object executes or handles the risks at the coal mine site. When the warning level is the fourth level, only the management personnel at the coal mine site are notified to investigate the risks.

[0118] In this embodiment, according to the warning level, the warning with high risk level is reported to the higher-level management agency. After the higher-level management agency determines the possible risks and makes a disposal plan, the lower-level coal mine units implement and execute the plan, thereby improving the efficiency of coal mine safety management.

[0119] Figure 7 FIG. 1 is an architecture diagram of a coal mine safety monitoring system according to an embodiment of the present disclosure. Figure 7As shown in the figure, the ground ring network switch on the surface of the coal mine is connected to multiple intrinsically safe switches underground through optical cables. Each intrinsically safe switch is connected to various sensors, controllers and other communication devices through RS485 / CAN bus. One of the intrinsically safe switches is connected to the mine pressure monitoring substation, gas extraction substation, personnel positioning substation and safety monitoring substation through RS485 / CAN bus, and is also connected to the emergency broadcast system, video monitoring system and wireless communication system through RS485 or Ethernet. Another intrinsically safe switch is connected to the substation and wireless receiver through Ethernet or RS485, and the wireless receiver communicates with the portable instrument, wireless sensor and equipment positioning instrument held by the underground operator through RFID or Zigbee communication. The third intrinsically safe switch is connected to the substation through Ethernet or RS485, and the substation is connected to the safety monitoring, mine pressure monitoring, extraction monitoring, personnel monitoring, locomotive monitoring and dispatching modules through RS485 / CAN bus, among which the safety monitoring module includes smoke sensors, start and stop sensors, laser methane sensors, wind speed sensors, remote control switches and other equipment. The mine pressure monitoring module includes bolt / cable stress and roof displacement monitors. The personnel monitoring module includes a wireless receiver for direct communication with underground workers. The locomotive monitoring and dispatching includes a positioning dispatching controller, which controls the rubber-wheeled vehicle to operate according to the instructions of the signal light. For each of the above modules, the safety monitoring module is an important part of the system, which is used to monitor the safety status of the coal mine environment in real time to ensure that miners can detect potential dangers in time when working underground. In addition, the personnel positioning module can accurately track the location of miners and improve the efficiency of safety management. The video monitoring module monitors the interior of the mine in real time through a camera so that managers can quickly detect abnormal situations and take corresponding measures. The wireless communication module uses wireless networks to achieve remote transmission and control of data, allowing managers to obtain real-time information inside the mine at any location. The emergency broadcast module can send alarms or instructions to the underground in an emergency to help miners quickly evacuate the dangerous area. In addition to the above modules, there are some other important monitoring equipment. For example, the start-stop sensor is used to detect the operating status of the equipment; the laser methane meter is used to measure the methane concentration in the air; and the anemometer is used to measure the wind speed to ensure the normal operation of the ventilation system. The bolt / cable stress roof displacement is used to monitor the stability and safety of the tunnel; the pipeline gas flow meter is used to measure the gas flow in the pipeline; the wireless receiver receives data from various sensors; the rubber-tyred vehicle controller controls the operating status of the rubber-tyred vehicle; and the signal light is used to indicate the status information inside the mine.

[0120] In summary, the coal mine monitoring system realizes comprehensive monitoring and management of the mine environment through a variety of sensors and controllers. It can collect and analyze data in real time, help managers make correct decisions, and ensure the safety and production efficiency of miners.

[0121] The present invention discloses a coal mine safety early warning method, which uses target sensors to collect safety data of the coal mine. The target sensors include low-power laser methane sensors, self-diagnostic sensors and multi-parameter sensors. The target sensors are deployed at the working face of the coal mine, and the distance from the target sensor to the central station in the network topology is no more than 3 layers, which provides a data source for the coal mine safety early warning; according to the safety data, different early warning levels are determined and alarms are issued, wherein the safety data include the gas concentration of the monitored working face, the duration of the gas concentration exceeding the limit and the range of the gas concentration exceeding the limit, so as to obtain more reliable early warning and assessment results of risks in coal mine production; in response to the alarm, a graded response is performed according to the early warning level, thereby improving the efficiency of safety management.

[0122] Corresponding to the methods provided in the above-mentioned embodiments, the present disclosure also provides a coal mine safety warning device. Since the device provided in the embodiments of the present disclosure corresponds to the methods provided in the above-mentioned embodiments, the implementation method of the method is also applicable to the device provided in this embodiment and will not be described in detail in this embodiment.

[0123] Figure 8 FIG. 8 is a schematic diagram of the structure of a coal mine safety warning device 800 according to an embodiment of the present disclosure. Figure 8 As shown, the coal mine safety early warning device includes:

[0124] The collection module 810 is used to collect safety data of the coal mine using target sensors, the target sensors include low-power laser methane sensors, self-diagnosis sensors and multi-parameter sensors, the target sensors are deployed at the working face of the coal mine, and the distance from the target sensors to the central station in the network topology structure does not exceed 3 layers;

[0125] The determination module 820 is used to determine different warning levels and issue an alarm based on the safety data, wherein the safety data includes the gas concentration of the monitored working face, the duration of the gas concentration exceeding the limit, and the exceeding range;

[0126] The response module 830 is used to respond to the alarm and perform a graded response according to the warning level.

[0127] In some embodiments, the determination module 820 is used to:

[0128] Determine, according to the concentration range of the gas concentration, a first sensor for monitoring excessive gas concentration and a duration of continuous excessive concentration of the first sensor;

[0129] Count the working surface sensors on the same working surface among the first sensors;

[0130] Counting neighboring sensors of the first sensor in adjacent areas in the network topology structure;

[0131] Determine the warning level based on the concentration range and duration of continuous exceeding the standard, and / or,

[0132] Determine the warning level based on the concentration range, working surface sensors and neighborhood sensors.

[0133] In some embodiments, the determination module 820 determines the warning level according to the concentration range and the duration of continuous exceeding the standard in the following manner:

[0134] If the duration of continuous exceeding the standard is less than or equal to the first duration, the warning level is determined according to the concentration range;

[0135] If the duration of continuous exceeding the standard is greater than the first duration and less than or equal to the second duration, the warning level is determined according to the concentration range and the duration influencing factor, wherein the longer the duration of continuous exceeding the standard is, the greater the duration influencing factor is, and the higher the warning level is;

[0136] If the duration of exceeding the standard is longer than the second duration, the warning level will be set to the first level.

[0137] In some embodiments, the determination module 820 determines the warning level according to the concentration range, the working surface sensor and the neighborhood sensor in the following manner:

[0138] If the concentration range is the first concentration range, the warning level is set to the fourth level;

[0139] If the concentration range is the second concentration range and the number of working surface sensors is greater than or equal to two, the warning level is set to the third level;

[0140] If the concentration range, the working surface sensor, and the neighborhood sensor meet any one of the first preset conditions, the warning level is set to the second level, the first preset condition includes that the concentration range is the third concentration range, the number of working surface sensors is greater than or equal to two, and the working surface sensor includes a sensor with a concentration range of the second concentration range, and the neighborhood sensor includes a sensor with a concentration range of the second concentration range;

[0141] If the concentration range, the working surface sensor and the neighborhood sensor meet any one of the second preset conditions, the warning level is set to the first level. The second preset conditions include that the concentration range is the fourth concentration range, the number of working surface sensors is greater than or equal to two, and the working surface sensor includes a sensor with a concentration range of the third concentration range, and the neighborhood sensor includes a sensor with a concentration range of the third concentration range. The priorities of the first level, the second level, the third level to the fourth level decrease in sequence, and the first concentration range, the second concentration range, the third concentration range and the fourth concentration range do not have an intersection, and they increase in sequence.

[0142] In some embodiments, the apparatus 800 is further configured to:

[0143] Cluster the security data to obtain the target locations of sensors with different security levels;

[0144] According to the security level, an alarm message is sent to the personnel at the target location.

[0145] In some embodiments, the response module 830 responds to the alarm by performing a graded response according to the warning level:

[0146] Sending an alarm message to the first object according to the warning level;

[0147] In response to the first response information of the first object, second response information is sent to the second object, wherein the priority of the first object is higher than that of the second object.

[0148] In summary, through the coal mine safety early warning device, target sensors are used to collect safety data of coal mines. The target sensors include low-power laser methane sensors, self-diagnostic sensors and multi-parameter sensors. The target sensors are deployed on the working face of the coal mine, and the distance from the target sensor to the central station in the network topology structure does not exceed 3 layers; according to the safety data, different early warning levels are determined and alarms are issued, among which the safety data include the gas concentration of the monitored working face, the duration of the gas concentration exceeding the limit and the range of the gas concentration exceeding the limit; in response to the alarm, a graded response is made according to the early warning level. This device solves the problems of insufficient reliability of risk early warning and assessment and low efficiency of safety management in coal mine production, and improves the reliability of risk early warning and assessment and the efficiency of safety management.

[0149] In the above embodiments provided by the present disclosure, the methods and devices provided by the embodiments of the present disclosure are introduced. In order to implement the functions in the methods provided by the above embodiments of the present disclosure, the electronic device may include a hardware structure and a software module, and implement the above functions in the form of a hardware structure, a software module, or a hardware structure plus a software module. One of the above functions may be executed in the form of a hardware structure, a software module, or a hardware structure plus a software module.

[0150] Fig. 9 It is a block diagram of an electronic device 900 for implementing the above-mentioned coal mine safety early warning method according to an exemplary embodiment.

[0151] For example, the electronic device 900 may be a mobile phone, a computer, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0152] Reference Fig. 9, the electronic device 900 may include one or more of the following components: a processing component 902 , a memory 904 , a power component 906 , a multimedia component 908 , an audio component 910 , an input / output (I / O) interface 912 , a sensor component 914 , and a communication component 916 .

[0153] The processing component 902 generally controls the overall operation of the electronic device 900, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 902 may include one or more processors 920 to execute instructions to complete all or part of the steps of the above-mentioned method. In addition, the processing component 902 may include one or more modules to facilitate the interaction between the processing component 902 and other components. For example, the processing component 902 may include a multimedia module to facilitate the interaction between the multimedia component 908 and the processing component 902.

[0154] The memory 904 is configured to store various types of data to support operations on the electronic device 600. Examples of such data include instructions for any application or method operating on the electronic device 900, contact data, phone book data, messages, pictures, videos, etc. The memory 904 may be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.

[0155] The power supply component 906 provides power to the various components of the electronic device 900. The power supply component 906 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to the electronic device 900.

[0156] The multimedia component 908 includes a screen that provides an output interface between the electronic device 900 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 908 includes a front camera and / or a rear camera. When the electronic device 900 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

[0157] The audio component 910 is configured to output and / or input audio signals. For example, the audio component 910 includes a microphone (MIC), and when the electronic device 900 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode, the microphone is configured to receive an external audio signal. The received audio signal can be further stored in the memory 904 or sent via the communication component 916. In some embodiments, the audio component 910 also includes a speaker for outputting audio signals.

[0158] I / O interface 912 provides an interface between processing component 902 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include but are not limited to: a home button, a volume button, a start button, and a lock button.

[0159] The sensor assembly 914 includes one or more sensors for providing various aspects of status assessment for the electronic device 900. For example, the sensor assembly 914 can detect the open / closed state of the electronic device 900, the relative positioning of components, such as the display and keypad of the electronic device 900, and the sensor assembly 914 can also detect the position change of the electronic device 900 or a component of the electronic device 900, the presence or absence of user contact with the electronic device 900, the orientation or acceleration / deceleration of the electronic device 900, and the temperature change of the electronic device 900. The sensor assembly 914 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 914 may also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 914 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0160] The communication component 916 is configured to facilitate wired or wireless communication between the electronic device 900 and other devices. The electronic device 900 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, 4G LTE, 5G NR (NewRadio) or a combination thereof. In an exemplary embodiment, the communication component 916 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 916 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0161] In an exemplary embodiment, the electronic device 900 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the above methods.

[0162] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 904 including instructions, and the instructions can be executed by the processor 920 of the electronic device 900 to complete the above method. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0163] The embodiments of the present disclosure further provide a non-transitory computer-readable storage medium storing computer instructions, wherein the computer instructions are used to enable a computer to execute the coal mine safety early warning method described in the above embodiments of the present disclosure.

[0164] The embodiments of the present disclosure further provide a computer program product, including a computer program, which executes the coal mine safety early warning method described in the above embodiments of the present disclosure when a processor executes the computer program.

[0165] Fig.10 It is a schematic structural diagram of a chip 1000 for implementing the above-mentioned coal mine safety early warning method according to an exemplary embodiment.

[0166] Reference Fig.10The chip 1000 includes at least one communication interface 1001 and a processor 1002; the communication interface 1001 is used to receive a signal input to the chip 1000 or a signal output from the chip 1000, and the processor 1002 communicates with the communication interface 1001 and implements the coal mine safety early warning method described in the above embodiment through a logic circuit or executing code instructions.

[0167] It should be noted that the terms "first", "second", etc. in the specification and claims of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present disclosure described herein can be implemented in an order other than those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0168] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0169] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code that includes one or more executable instructions for implementing the steps of a specific logical function or process, and the scope of the preferred embodiments of the present disclosure includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by those skilled in the art to which the embodiments of the present disclosure belong.

[0170] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as an ordered list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processing module, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purposes of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection with one or more wires (control method), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), a fiber optic device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or otherwise processing in a suitable manner if necessary, and then stored in a computer memory.

[0171] It should be understood that the various parts of the embodiments of the present disclosure can be implemented by hardware, software, firmware or a combination thereof. In the above embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0172] A person skilled in the art may understand that all or part of the steps in the method for implementing the above-mentioned embodiment may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiment.

[0173] In addition, each functional unit in each embodiment of the present disclosure may be integrated into a processing module, or each unit may exist physically separately, or two or more units may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium. The above-mentioned storage medium may be a read-only memory, a disk or an optical disk, etc.

[0174] Although the embodiments of the present disclosure have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present disclosure. A person skilled in the art may make changes, modifications, substitutions and variations to the above embodiments within the scope of the present disclosure.

Claims

1. A coal mine safety early warning method, characterized in that: The method comprises: Use target sensors to collect safety data of coal mines, the target sensors include low-power laser methane sensors, self-diagnosis sensors and multi-parameter sensors, the target sensors are deployed on the working face of the coal mine, and the target sensors are no more than 3 layers from the central station in the network topology structure; Determine different warning levels and issue an alarm based on the safety data, wherein the safety data includes monitoring the gas concentration of the working surface, the duration of the gas concentration exceeding the limit, and the range of the gas concentration exceeding the limit; In response to the alarm, a graded response is performed according to the warning level.

2. The method according to claim 1, characterized in that Determining different warning levels and issuing an alarm based on the safety data includes: Determine, according to the concentration range of the gas concentration, a first sensor for monitoring excessive gas concentration and a duration of continuous excessive concentration of the first sensor; Counting the working surface sensors on the same working surface among the first sensors; Counting neighboring sensors of the first sensor in adjacent areas in the network topology structure; Determine the warning level according to the concentration range and the duration of continuous exceeding the standard, and / or The warning level is determined according to the concentration range, the working surface sensor and the neighborhood sensor.

3. The method according to claim 2, characterized in that Determining the warning level according to the concentration range and the duration of continuous exceeding the standard includes: If the duration of continuous exceeding the standard is less than or equal to the first duration, determining the warning level according to the concentration range; If the duration of continuous exceeding the standard is greater than the first duration and less than or equal to the second duration, the warning level is determined according to the concentration range and the duration influencing factor, wherein the longer the duration of continuous exceeding the standard is, the greater the duration influencing factor is, and the higher the warning level is; If the duration of continuous exceeding the standard is greater than the second duration, the warning level is set to the first level.

4. The method according to claim 2, characterized in that: The step of determining the warning level according to the concentration range, the working surface sensor and the neighborhood sensor includes: If the concentration range is the first concentration range, setting the warning level to the fourth level; If the concentration range is the second concentration range and the number of the working surface sensors is greater than or equal to two, the warning level is set to the third level; If the concentration range, the working surface sensor, and the neighborhood sensor meet any one of the first preset conditions, the warning level is set to the second level, the first preset condition including that the concentration range is the third concentration range, the number of the working surface sensors is greater than or equal to two, and the working surface sensor includes a sensor whose concentration range is the second concentration range, and the neighborhood sensor includes a sensor whose concentration range is the second concentration range; If the concentration range, the working surface sensor and the neighborhood sensor meet any one of the second preset conditions, the warning level is set to the first level, and the second preset condition includes that the concentration range is the fourth concentration range, the number of the working surface sensors is greater than or equal to two, and the working surface sensor includes a sensor in the third concentration range, and the neighborhood sensor includes a sensor in the third concentration range, wherein the priorities of the first level, the second level, the third level to the fourth level decrease in sequence, and the first concentration range, the second concentration range, the third concentration range and the fourth concentration range do not have an intersection and increase in sequence.

5. The method according to claim 1, characterized in that The method further comprises: Clustering the security data to obtain target locations of sensors with different security levels; According to the security level, an alarm message is sent to the personnel at the target location.

6. The method according to claim 1, characterized in that The step of responding to the alarm and performing a graded response according to the warning level includes: Sending an alarm message to the first object according to the warning level; In response to the first response information of the first object, second response information is sent to the second object, wherein the priority of the first object is higher than that of the second object.

7. A coal mine safety early warning device, characterized in that: The device comprises: A collection module, used to collect safety data of the coal mine using target sensors, wherein the target sensors include low-power laser methane sensors, self-diagnosis sensors, and multi-parameter sensors, and the target sensors are deployed at the working face of the coal mine, and the distance from the target sensors to the central station in the network topology is no more than 3 layers; A determination module, used to determine different warning levels and issue an alarm according to the safety data, wherein the safety data includes monitoring the gas concentration of the working surface, the duration of the gas concentration exceeding the limit, and the range of the gas concentration exceeding the limit; A response module is used to respond to the alarm and perform a graded response according to the warning level.

8. An electronic device, characterized in that: include: at least one processor; as well as a memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the method according to any one of claims 1 to 6.

9. A non-transitory computer-readable storage medium storing computer instructions, characterized in that: The computer instructions are used to cause the computer to execute the method according to any one of claims 1-6.

10. A computer program product, characterized in that The invention comprises a computer program which, when executed by a processor, implements the method according to any one of claims 1 to 6.

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