Coal mine fire prevention method, device and coal mine fire prevention system

Abstract

The present application provides a method, device and system for preventing fires in coal mines. The method includes: determining whether a fire will occur in a target area based on environmental data and / or line data, and generating a prompt message and sending it to a mobile terminal when it is determined that a fire will occur in the target area. In this solution, environmental data of the target area of ​​the coal mine can be collected and analyzed to determine whether a fire will occur in the target area. Line data of the target line in the target area of ​​the coal mine can also be collected and analyzed to determine whether a fire will occur in the target area. This solution can accurately determine whether a fire will occur in the target area based on environmental data and / or line data, and can also issue a prompt message in a timely manner when it is determined that a fire will occur in the target area to promptly alert staff, thereby improving the fire prevention effect in the coal mine.

Description

Technical Field

[0001] The present application relates to the field of coal mine safety technology, and in particular to a method and device for preventing fires in coal mines, a computer-readable storage medium, and a fire prevention system for coal mines. Background Art

[0002] The fire prevention effect of existing coal mines below the mine and the coal preparation plant above the mine is poor. It cannot pre-process the existing safety hazards and cannot solve the existing safety hazards in a timely manner. When a fire occurs, the existing safety hazards cause a chain reaction, increase the scope of the fire, and cause immeasurable economic losses. Summary of the Invention

[0003] The main purpose of this application is to provide a method, device, computer-readable storage medium and coal mine fire prevention system for preventing fires in coal mines, so as to solve the problem of poor fire prevention effect in the existing technology.

[0004] According to one aspect of an embodiment of the present invention, a method for preventing fires in a coal mine is provided, comprising: obtaining environmental data of a target area of ​​the coal mine, the environmental data including at least one of the following: the volume of a target object, the oxygen content in the target area, and the temperature change in the target area; obtaining line data of a target line in the target area of ​​the coal mine, the line data including at least one of the following: a voltage fluctuation value, a current slope value, and an average heating value; determining whether a fire will occur in the target area based on the environmental data and / or the line data, and, if it is determined that a fire will occur in the target area, generating a prompt message and sending it to a mobile terminal.

[0005] Optionally, the environmental data includes the volume of the target object, the oxygen content in the target area and the temperature change in the target area. Obtaining the environmental data of the target area of ​​the coal mine includes: obtaining an image of the target object, wherein the image is acquired based on an image acquisition device; extracting volume-related information of the target object in the image, and determining the volume based on the volume-related information, wherein the volume-related information includes at least one of the following: length, width, height; obtaining the oxygen content in the target area, wherein the oxygen content is detected by an oxygen sensor; obtaining a first temperature at a first moment in the target area, and obtaining a second temperature at a second moment in the target area, wherein the first temperature and the second temperature are detected by a first temperature sensor; and determining the temperature change based on the first temperature and the second temperature.

[0006] Optionally, the line data includes: the voltage fluctuation value, the current slope value and the average heating value, and obtaining the line data of the target line in the target area of ​​the coal mine includes: obtaining multiple voltage values ​​of the target line at multiple times within the target time period, wherein the voltage value is detected by the voltage sensor; determining the voltage fluctuation value based on the multiple voltage values; obtaining multiple current values ​​of the target line at multiple times within the target time period, wherein the current value is detected by the current sensor; determining the current slope value based on the multiple current values; obtaining multiple third temperatures of the target line at multiple times within the target time period, wherein the third temperature is detected by the second temperature sensor; and determining the average heating value based on the multiple third temperatures.

[0007] Optionally, there are multiple environmental data, and whether a fire will occur in the target area is determined based on the environmental data, and if it is determined that a fire will occur in the target area, a prompt message is generated and sent to the mobile terminal, including: obtaining a weight coefficient of each environmental data, wherein the weight coefficient refers to the importance of the environmental data in the determination result; obtaining the product of the environmental data and the weight coefficient corresponding to the environmental data to obtain a calculation result; if the calculation result is greater than or equal to a first environmental threshold, determining that a fire will occur in the target area, and generating first environmental prompt information and sending it to the mobile terminal; if the calculation result is less than the first environmental threshold and greater than or equal to a second environmental threshold, determining that a fire will occur in the target area, and generating second environmental prompt information and sending it to the mobile terminal, wherein the severity level corresponding to the first environmental prompt information is higher than the severity level corresponding to the second environmental prompt information; if the calculation result is less than the second environmental threshold, determining that a fire will occur in the target area, and generating third environmental prompt information and sending it to the mobile terminal, wherein the severity level corresponding to the second environmental prompt information is higher than the severity level corresponding to the third environmental prompt information.

[0008] Optionally, determining whether a fire will occur in the target area based on the line data, and generating a prompt message to send to the mobile terminal if it is determined that a fire will occur in the target area, includes: constructing a corresponding curve based on the line data, wherein the curve represents a change in the line data; obtaining a reference curve, wherein the reference curve is constructed based on reference line data, and the reference line data is reference data of the target line; comparing the degree of overlap between the curve and the reference curve; if the degree of overlap is less than a degree of overlap threshold, determining that a fire will occur in the target area, and generating a line prompt message to send to the mobile terminal; if the degree of overlap is greater than or equal to the degree of overlap threshold, determining that a fire will not occur in the target area.

[0009] Optionally, determining whether a fire will occur in the target area based on the environmental data and the line data, and generating a prompt message to send to the mobile terminal when it is determined that a fire will occur in the target area includes: constructing a corresponding curve based on the line data, wherein the curve represents a change in the line data; comparing the overlap between the curve and a reference curve, wherein the reference curve is constructed based on reference line data, and the reference line data is reference data of the target line; when the calculation result is greater than or equal to a first environmental threshold value and the overlap is less than the overlap threshold value, determining that a fire will occur in the target area, and generating a first environmental prompt message The calculation result is the product of the environmental data and the weight coefficient corresponding to the environmental data; when the calculation result is less than the first environmental threshold and greater than or equal to the second environmental threshold, and the overlap is less than the overlap threshold, it is determined that a fire will occur in the target area, and the second environmental prompt information and the line prompt information are generated and sent to the mobile terminal; when the calculation result is less than the second environmental threshold and the overlap is less than the overlap threshold, it is determined that a fire will occur in the target area, and the third environmental prompt information and the line prompt information are generated and sent to the mobile terminal.

[0010] Optionally, the method also includes: obtaining firefighting data of the firefighting area of ​​the coal mine, the firefighting data including at least one of the following: the commissioning time of the firefighting equipment, the effective use time of the firefighting equipment, the lighting brightness of the firefighting equipment, and the dust accumulation on the firefighting equipment; determining whether the firefighting equipment needs to be replaced and / or repaired based on the firefighting data; if it is determined that the firefighting equipment needs to be replaced and / or repaired, generating replacement information and / or repair information and sending it to the mobile terminal.

[0011] According to another aspect of an embodiment of the present invention, a device for preventing fire in a coal mine is also provided, comprising: a first acquisition unit, for acquiring environmental data of a target area of ​​the coal mine, the environmental data including at least one of the following: the volume of the target object, the oxygen content in the target area, and the temperature change in the target area; a second acquisition unit, for acquiring line data of a target line in the target area of ​​the coal mine, the line data including at least one of the following: a voltage fluctuation value, a current slope value, and an average heating value; a processing unit, for determining whether a fire will occur in the target area based on the environmental data and / or the line data, and generating a prompt message to send to a mobile terminal when it is determined that a fire will occur in the target area.

[0012] According to yet another aspect of the embodiments of the present invention, a computer-readable storage medium is provided, wherein the computer-readable storage medium includes a stored program, wherein the program executes any one of the methods described above.

[0013] According to another aspect of an embodiment of the present invention, a coal mine fire prevention system is provided, comprising: a mobile terminal, a coal mine fire prevention device, multiple sensors, and fire-fighting equipment, wherein the coal mine fire prevention device is used to execute any one of the methods described.

[0014] In an embodiment of the present invention, environmental data of a target area of ​​a coal mine is first acquired, and then line data of a target line of the target area of ​​the coal mine is acquired. Finally, whether a fire will occur in the target area is determined based on the environmental data and / or line data, and if it is determined that a fire will occur in the target area, a prompt message is generated and sent to a mobile terminal. In this solution, environmental data of a target area of ​​a coal mine can be collected and analyzed to determine whether a fire will occur in the target area, and line data of a target line of the target area of ​​a coal mine can be collected and analyzed to determine whether a fire will occur in the target area. This solution can accurately determine whether a fire will occur in the target area through environmental data and / or line data, and can also issue prompt information in a timely manner to promptly alert staff members if it is determined that a fire will occur in the target area, thereby improving the fire prevention effect in coal mines. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings that constitute part of this application are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation on this application. In the drawings:

[0016] Figure 1 A schematic flow chart of a method for preventing fire in a coal mine according to an embodiment of the present application is shown;

[0017] Figure 2A schematic structural diagram of a coal mine fire prevention device according to an embodiment of the present application is shown;

[0018] Figure 3 A partial structural diagram of a coal mine fire prevention system is shown. DETAILED DESCRIPTION

[0019] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0020] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0021] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0022] It should be understood that when an element (such as a layer, film, region, or substrate) is described as being "on" another element, the element may be directly on the other element or intervening elements may be present. Moreover, in the specification and claims, when it is described that an element is "connected to" another element, the element may be "directly connected to" the other element or "connected to" the other element through a third element.

[0023] As mentioned in the background technology, the fire prevention effect in coal mines in the existing technology is relatively poor. In order to solve the above problems, in a typical embodiment of the present application, a method, device, computer-readable storage medium and coal mine fire prevention system are provided.

[0024] According to an embodiment of the present application, a method for preventing fire in a coal mine is provided.

[0025] Figure 1 FIG. 1 is a flow chart of a method for preventing fire in a coal mine according to an embodiment of the present application. Figure 1 As shown, the method includes the following steps:

[0026] Step S101, obtaining environmental data of a target area of ​​a coal mine, wherein the environmental data includes at least one of the following: the volume of a target object, the oxygen content in the target area, and the temperature change in the target area;

[0027] Specifically, the target object may be a combustible material, and the volume of the target object may be the sum of the volumes of all combustible materials in the target area; the oxygen content refers to the percentage of oxygen content per unit volume in the air in the target area; and the temperature change refers to the temperature increase amplitude of the target area per unit time.

[0028] In the above step S101, environmental data of the target area of ​​the coal mine can be obtained, so that in-depth analysis can be performed based on the environmental data of the target area of ​​the coal mine to determine whether a fire will occur in the target area of ​​the coal mine.

[0029] Step S102, obtaining line data of the target line in the target area of ​​the coal mine, wherein the line data includes at least one of the following: voltage fluctuation value, current slope value, and average heating value;

[0030] Specifically, the voltage fluctuation value refers to the absolute value of the difference between the voltage values ​​corresponding to two connected time periods (or two moments), and the current slope value refers to the absolute value of the slope of the line segments corresponding to two connected current values.

[0031] In the above step S102 , the line data of the target line in the target area can be obtained, so that an in-depth analysis can be performed based on the line data of the target line in the target area of ​​the coal mine to determine whether a fire will occur in the target area of ​​the coal mine.

[0032] Step S103 , determining whether a fire will occur in the target area based on the environmental data and / or the line data, and generating a prompt message to send to the mobile terminal if it is determined that a fire will occur in the target area.

[0033] In the above-mentioned step S103, whether a fire will occur in the target area can be determined through environmental data and / or line data, and if it is determined that a fire will occur in the target area, a prompt message can be sent to the mobile terminal in a timely manner to prompt the staff to deal with it in time. This can improve the efficiency of fire prevention treatment in coal mines and further avoid the occurrence of fire accidents.

[0034] In the above method, first, environmental data of the target area of ​​the coal mine is obtained, then line data of the target line of the target area of ​​the coal mine is obtained, and finally, whether a fire will occur in the target area is determined based on the environmental data and / or line data, and if it is determined that a fire will occur in the target area, a prompt message is generated and sent to the mobile terminal. In this solution, the environmental data of the target area of ​​the coal mine can be collected and analyzed to determine whether a fire will occur in the target area, and the line data of the target line of the target area of ​​the coal mine can also be collected and analyzed to determine whether a fire will occur in the target area. This solution can accurately determine whether a fire will occur in the target area through environmental data and / or line data, and can also issue prompt information in a timely manner to promptly alert staff when it is determined that a fire will occur in the target area, thereby improving the fire prevention effect in the coal mine.

[0035] It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and that, although a logical order is shown in the flowcharts, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0036] To ensure that subsequent fire prevention judgments are more accurate, the environmental data may first be ensured to be more accurate. In one embodiment of the present application, the environmental data includes the volume of the target object, the oxygen content in the target area, and the temperature change in the target area. Obtaining the environmental data of the target area of ​​the coal mine specifically includes the following steps:

[0037] We can first extract the gas content values ​​WSi in the same time period of multiple areas of the coal mine, and construct a set of gas content values ​​WSi. We can then call the preset maximum gas content value WSimax and compare it with the gas content values ​​WSi in each area. We can then mark the areas in multiple areas where the gas content value WSi is greater than or equal to the preset maximum gas content value WSimax as prevention areas (that is, target areas, and there may be multiple target areas).

[0038] Step S201, acquiring an image of the target object, wherein the image is acquired by an image acquisition device;

[0039] Step S202: extracting volume-related information of the target object in the image, and determining the volume based on the volume-related information, wherein the volume-related information includes at least one of the following: length, width, and height;

[0040] Specifically, the larger the value of the volume of the target object is, the more uncontrollable the fire is when a fire occurs. Conversely, the smaller the value of the volume of the target object is, the easier it is to control the fire when a fire occurs.

[0041] Step S203, obtaining the oxygen content in the target area, wherein the oxygen content is detected by an oxygen sensor;

[0042] Specifically, the greater the oxygen content in the target area, the greater the fire will develop when a fire occurs. Conversely, the smaller the oxygen content in the target area, the smaller the fire will develop when a fire occurs.

[0043] Step S204, obtaining a first temperature within the target area at a first moment, and obtaining a second temperature within the target area at a second moment, wherein the first temperature and the second temperature are detected by a first temperature sensor;

[0044] Step S205 , determining the temperature change according to the first temperature and the second temperature.

[0045] Specifically, the temperature difference between the first temperature and the second temperature may be calculated, and the obtained temperature difference is the temperature change.

[0046] More specifically, the greater the increase in the temperature change within the target area, the greater the possibility of a fire. Conversely, the smaller the increase in the temperature change, the smaller the possibility of a fire.

[0047] In the above steps S201 to S205, the volume of the target object in the target area, as well as the oxygen content and temperature changes in the target area can be obtained, ensuring that the accuracy of the environmental data of the target area is good, and further ensuring that whether a fire will occur in the target area can be further accurately determined based on the environmental data of the coal mine.

[0048] In some solutions, it is impossible to supervise the lines in the coal mine, which greatly increases the safety hazards in the coal mine and brings serious difficulties to subsequent fire control. In another embodiment of the present application, the line data includes: the voltage fluctuation value, the current slope value, and the average heating value. Obtaining the line data of the target line in the target area of ​​the coal mine specifically includes the following steps:

[0049] Specifically, the coal mine's goaf can be marked as an analysis area, divided into i sub-areas, where i is a natural number. The sub-areas where the line surface is damaged are obtained from multiple sub-areas and marked as risk areas. Risk areas can be the target areas of this solution. Goaf refers to "cavities" created below the surface by human excavation or natural geological movement. Line surface damage is detected by collecting line image data using image acquisition equipment, which is then analyzed and processed. The grayscale value and color of the image are analyzed to determine whether the line surface is damaged. The specific analysis process can adopt any feasible technology in existing solutions and is not detailed here.

[0050] Step S301, obtaining multiple voltage values ​​of the target line at multiple moments in a target time period, wherein the voltage values ​​are detected by a voltage sensor;

[0051] Specifically, the target time period may be divided into multiple sub-time periods at intervals of one minute, and the multiple sub-time periods or moments are marked as o, where o=1, 2, ..., q, where q is a positive integer.

[0052] Step S302, determining the voltage fluctuation value according to the plurality of voltage values;

[0053] Specifically, the voltage value can be marked as Vo, a set of voltage values ​​{V1, V2, ..., Vq} can be constructed, and the absolute value of the difference between the voltage values ​​corresponding to two adjacent moments can be used as the voltage fluctuation value, for example: |V2-V1|.

[0054] The greater the numerical difference between the voltage fluctuation values, the greater the amplitude of the voltage change, the more unstable the operating voltage, and the more likely electric sparks will occur. Conversely, the smaller the numerical difference between the voltage fluctuation values, the smaller the amplitude of the voltage change, and the more stable the operating voltage.

[0055] Step S303, obtaining multiple current values ​​of the target line at multiple moments within the target time period, wherein the current values ​​are detected by a current sensor;

[0056] Step S304, determining the current slope value according to the multiple current values;

[0057] Specifically, the current value can be marked as Ao, and a set of current values ​​{A1, A2, ..., Aq} can be constructed. According to the current values ​​and corresponding times corresponding to two adjacent moments, the absolute value of the slope corresponding to the two adjacent moments can be calculated as the current slope value, for example: |A2-A1|.

[0058] Step S305, obtaining a plurality of third temperatures of the target line at a plurality of moments within the target time period, wherein the third temperatures are detected by the second temperature sensor;

[0059] Step S306: determining the average heating value according to the plurality of third temperatures.

[0060] Specifically, the third temperature may be marked as Qo, a set of third temperatures {Q1, Q2, ..., Qq} may be constructed, and the average heating value may be calculated based on the average value of the third temperatures corresponding to two adjacent moments.

[0061] In the above steps S301 to S306, the voltage fluctuation value, current slope value and average heating value of the target line in the target area can be obtained, ensuring the accuracy of the line data of the target line in the target area, and further ensuring that whether a fire will occur in the target area can be further accurately determined based on the line data of the target line in the target area.

[0062] In order to further accurately determine whether a fire will occur in a target area based on the environmental data of the coal mine, a hierarchical analysis can be performed on the environmental data of the coal mine. In another embodiment of the present application, there are multiple environmental data, and determining whether a fire will occur in the target area based on the environmental data, and if it is determined that a fire will occur in the target area, generating a prompt message and sending it to the mobile terminal, specifically includes the following steps:

[0063] Step S401, obtaining a weight coefficient of each of the above environmental data, wherein the above weight coefficient refers to the importance of the above environmental data in determining the result;

[0064] Step S402, obtaining the product of the environmental data and the weight coefficient corresponding to the environmental data to obtain a calculation result;

[0065] Specifically, the environmental data include the volume of the target object, the oxygen content in the target area, and the temperature change in the target area, which are marked as KTz, YHz, and WFz respectively.

[0066]

[0067] The calculation result is obtained, where a represents the weight coefficient corresponding to the volume of the target object, b represents the weight coefficient corresponding to the oxygen content in the target area, and c represents the weight coefficient corresponding to the temperature change in the target area. c>b>a, a+b+c=1.283, and Xo represents the calculation result. The specific weight coefficient is set to quantify each parameter in the formula to obtain a specific value for subsequent comparison.

[0068] Step S403: If the calculation result is greater than or equal to the first environmental threshold, it is determined that a fire will occur in the target area, and first environmental prompt information is generated and sent to the mobile terminal;

[0069] Specifically, when the calculation result is greater than or equal to the first environmental threshold, it is determined that the target area is very likely to be on fire, and a first environmental prompt message can be generated; the first environmental prompt message can be "expedited processing", of course, it can also be other text or voice prompt messages.

[0070] Step S404: If the calculated result is less than the first environmental threshold and greater than or equal to the second environmental threshold, it is determined that a fire will occur in the target area, and a second environmental prompt message is generated and sent to the mobile terminal, wherein the severity level corresponding to the first environmental prompt message is higher than the severity level corresponding to the second environmental prompt message;

[0071] Specifically, the second environment prompt information may be "process in time", and of course, may also be other text or voice prompt information.

[0072] Step S405: When the calculation result is less than the second environmental threshold, it is determined that a fire will occur in the target area, and a third environmental prompt message is generated and sent to the mobile terminal, wherein the severity level corresponding to the second environmental prompt message is higher than the severity level corresponding to the third environmental prompt message.

[0073] Specifically, the third environment prompt information may be "waiting for processing", and of course, may also be other text or voice prompt information.

[0074] By formulating and analyzing the environmental data of the target area in an in-depth manner, it helps to improve fire prevention in mines, improve the safety of workers' lives and property, and avoid the occurrence of fire accidents.

[0075] In the above steps S401 to S405, a hierarchical analysis is performed on the environmental data of the coal mine to further accurately determine whether a fire will occur in the target area through the environmental data. Then, when it is determined whether a fire will occur in the target area, corresponding environmental prompt information can be obtained. In this way, the corresponding environmental prompt information can be broadcast through other audio playback devices or mobile terminals. The coal mine staff can leave the area of ​​the coal mine where the fire will occur in time, or the staff can deal with it in time, thereby further avoiding the occurrence of fire accidents.

[0076] In order to further accurately determine whether a fire will occur in a target area based on the line data of the coal mine, a hierarchical analysis can be performed on the line data of the coal mine. In another embodiment of the present application, determining whether a fire will occur in the target area based on the line data, and generating a prompt message to send to a mobile terminal if it is determined that a fire will occur in the target area, specifically includes the following steps:

[0077] Step S501: constructing a corresponding curve based on the line data, wherein the curve represents the change of the line data;

[0078] Specifically, the line data includes voltage fluctuation value, current slope value and average heating value. A rectangular coordinate system is constructed with the independent variable time as the X-axis and the dependent variables voltage fluctuation value, current slope value and average heating value as the Y-axis, and curves of voltage fluctuation value, current slope value and average heating value are constructed to obtain an analysis curve graph.

[0079] Step S502: obtaining a reference curve, wherein the reference curve is constructed based on reference line data, and the reference line data is reference data of the target line;

[0080] Specifically, the corresponding voltage fluctuation value, current slope value and average heat generation set when no abnormality occurs in the line during the historical time period can be obtained, and a curve graph of the voltage fluctuation value, current slope value and average heat generation versus time can be constructed as a reference curve graph, and each curve in the reference curve graph is a reference curve.

[0081] Step S503, comparing the degree of overlap between the above curve and the above reference curve;

[0082] Step S504: if the overlap is less than the overlap threshold, it is determined that a fire may occur in the target area, and line prompt information is generated and sent to the mobile terminal;

[0083] Specifically, when it is determined that a fire will occur in the target area, the target area can also be marked as a high-risk area, and line prompt information can be generated and sent to the mobile terminal. After receiving the line prompt information, the mobile terminal can generate a "line rectification" text, thereby prompting the staff to rectify and replace the high-risk area in time to avoid electric sparks in the line causing gas explosions, which in turn helps to improve the safety of the staff's working environment and reduce the safety hazards of the internal lines in the mine.

[0084] Step S505: When the overlap is greater than or equal to the overlap threshold, it is determined that no fire will occur in the target area.

[0085] Specifically, the overlap threshold may be 80%, 90%, or other thresholds.

[0086] In the above steps S501 to S505, the line data corresponding to the target line in the target area of ​​the coal mine can be analyzed to further accurately determine whether a fire will occur in the target area through the line data. Then, when it is determined whether a fire will occur in the target area, a line prompt information can be issued, and the coal mine staff can leave the area of ​​the coal mine where the fire will occur in time, or the staff can deal with it in time, thereby further avoiding the occurrence of fire accidents and reducing the safety hazards of the target line.

[0087] In order to further accurately determine whether a fire will occur in a target area based on the environmental data and line data of the coal mine, a hierarchical analysis can be performed on the environmental data and line data of the coal mine. In an optional embodiment of the present application, determining whether a fire will occur in the target area based on the environmental data and the line data, and generating a prompt message to send to a mobile terminal if it is determined that a fire will occur in the target area, specifically includes the following steps:

[0088] Step S601: constructing a corresponding curve based on the line data, wherein the curve represents the change of the line data;

[0089] Specifically, a reference curve may also be obtained, wherein the reference curve is constructed based on reference line data, and the reference line data is reference data of the target line.

[0090] Step S602: comparing the degree of coincidence between the curve and a reference curve, wherein the reference curve is constructed based on reference line data, and the reference line data is reference data of the target line;

[0091] Specifically, the weight coefficient of each of the above environmental data can also be obtained, wherein the above weight coefficient refers to the importance of the above environmental data in determining the result, and the product of the above environmental data and the weight coefficient corresponding to the above environmental data is obtained to obtain the calculation result.

[0092] Step S603: If the calculation result is greater than or equal to the first environmental threshold and the overlap is less than the overlap threshold, it is determined that a fire will occur in the target area, and first environmental prompt information and route prompt information are generated and sent to the mobile terminal, wherein the calculation result is the product of the environmental data and the weight coefficient corresponding to the environmental data;

[0093] Step S604: If the calculation result is less than the first environmental threshold and greater than or equal to the second environmental threshold, and the overlap is less than the overlap threshold, it is determined that a fire will occur in the target area, and second environmental prompt information and the line prompt information are generated and sent to the mobile terminal.

[0094] Step S605: When the calculation result is less than the second environmental threshold and the overlap is less than the overlap threshold, it is determined that a fire will occur in the target area, and a third environmental prompt information and the line prompt information are generated and sent to the mobile terminal.

[0095] In the above steps S601 to S605, a hierarchical analysis is performed on the environmental data and line data of the coal mine to further accurately determine whether a fire will occur in the target area through the environmental data and line data. Then, when it is determined whether a fire will occur in the target area, corresponding environmental prompt information can be obtained. In this way, the corresponding environmental prompt information and line prompt information can be broadcast through other audio playback devices or mobile terminals. The coal mine staff can leave the area where the fire will occur in the coal mine in time, or the staff can deal with it in time, thereby further avoiding the occurrence of fire accidents and reducing the safety hazards of the target line.

[0096] In some solutions, it is impossible to supervise the fire-fighting equipment in the coal mine, which will greatly increase the safety hazards in the coal mine and bring serious difficulties to subsequent fire control. In a specific embodiment of the present application, the above method also includes the following steps:

[0097] Step S701: Obtain firefighting data of a firefighting area of ​​a coal mine, wherein the firefighting data includes at least one of the following: time of commissioning of firefighting equipment, effective time of use of firefighting equipment, lighting brightness of firefighting equipment, and dust accumulation on firefighting equipment;

[0098] Specifically, the area where the firefighting equipment of the coal mine is placed can be marked as a firefighting area.

[0099] Step S702: determining whether the firefighting equipment needs to be replaced and / or repaired based on the firefighting data;

[0100] Specifically, the time difference between the time the fire-fighting equipment is put into use and the effective use time of the fire-fighting equipment can be calculated to obtain the remaining time of the fire-fighting equipment, and marked as the remaining time S. The remaining time S is compared and analyzed with the preset remaining time YS. When the remaining time S is greater than or equal to the preset remaining time YS, it is determined that the fire-fighting equipment does not need to be replaced. When the remaining time S is less than the preset remaining time YS, it is determined that the fire-fighting equipment needs to be replaced.

[0101] The longer the remaining time S of the fire-fighting equipment, the less likely it is that the fire-fighting equipment will malfunction. Conversely, the shorter the remaining time S of the fire-fighting equipment, the greater the possibility that the fire-fighting equipment will malfunction. The greater the dust accumulation value on the fire-fighting equipment, the greater the impact on the lighting of the fire-fighting equipment and the more it affects the lighting brightness of the fire-fighting equipment. Conversely, the smaller the dust accumulation value on the fire-fighting equipment, the smaller the impact on the lighting of the fire-fighting equipment.

[0102] Specifically, the lighting brightness and dust accumulation of fire-fighting equipment can be obtained through image processing technology. Any feasible image processing technology can be used and this solution does not limit it.

[0103] Optionally, the lighting brightness of the fire-fighting equipment can be marked as Zk, and the dust accumulation on the fire-fighting equipment can be marked as Jk, and the following formula can be used:

[0104]

[0105] The calculation result is obtained, where α is the weight coefficient corresponding to the lighting brightness of the fire-fighting equipment, β is the weight coefficient corresponding to the dust accumulation on the fire-fighting equipment, Xh represents the calculation result, k=1, 2,…, m, and m is a positive integer. The calculation result Xh is compared and analyzed with the preset fire threshold. When the calculation result is greater than or equal to the preset fire threshold, it is determined that the fire-fighting equipment does not need maintenance. When the calculation result is less than the preset fire threshold, it is determined that the fire-fighting equipment needs maintenance.

[0106] Step S703: When it is determined that the fire-fighting equipment needs to be replaced and / or repaired, replacement information and / or repair information is generated and sent to the mobile terminal.

[0107] After receiving the replacement information, the mobile terminal can also generate a "firefighting replacement" text document to remind staff to replace the firefighting equipment that needs to be replaced in a timely manner, thereby reducing the possibility of firefighting equipment failure and helping to improve fire safety in the mine.

[0108] After receiving maintenance information, the mobile terminal can also control the corresponding fire-fighting equipment to flash an alarm, which helps staff to promptly inspect and repair the fire-fighting equipment, improve the lighting quality of the fire-fighting equipment, and at the same time improve the supervision ability of the fire-fighting equipment, which helps to improve the fire prevention capabilities of the coal preparation plant above the mine.

[0109] In the above steps S701 to S703, the fire data of the fire area can be collected and hierarchically analyzed to determine whether the fire equipment needs to be replaced and / or repaired, and when the fire equipment needs to be replaced and / or repaired, corresponding information can be issued in a timely manner, so that the staff can be prompted to replace and / or repair the fire equipment that needs to be replaced and / or repaired in time, thereby reducing the possibility of fire equipment failure.

[0110] The present application also provides a device for preventing fires in coal mines. It should be noted that the device for preventing fires in coal mines provided in the present application can be used to implement the method for preventing fires in coal mines provided in the present application. The following describes the device for preventing fires in coal mines provided in the present application.

[0111] Figure 2 Schematic diagram of a fire prevention device for a coal mine according to an embodiment of the present application. Figure 2 As shown, the device includes:

[0112] A first acquisition unit 10 is configured to acquire environmental data of a target area of ​​a coal mine, wherein the environmental data includes at least one of the following: a volume of a target object, an oxygen content in the target area, and a temperature change in the target area;

[0113] Specifically, the target object may be a combustible material, and the volume of the target object may be the sum of the volumes of all combustible materials in the target area; the oxygen content refers to the percentage of oxygen content per unit volume in the air in the target area; and the temperature change refers to the temperature increase amplitude of the target area per unit time.

[0114] The first acquisition unit can acquire the environmental data of the target area of ​​the coal mine, so that an in-depth analysis can be performed based on the environmental data of the target area of ​​the coal mine to determine whether a fire will occur in the target area of ​​the coal mine.

[0115] A second acquisition unit 20 is configured to acquire line data of a target line in the target area of ​​the coal mine, wherein the line data includes at least one of the following: a voltage fluctuation value, a current slope value, and an average heating value;

[0116] Specifically, the voltage fluctuation value refers to the absolute value of the difference between the voltage values ​​corresponding to two connected time periods (or two moments), and the current slope value refers to the absolute value of the slope of the line segments corresponding to two connected current values.

[0117] The second acquisition unit can acquire the line data of the target line in the target area, so that an in-depth analysis can be performed based on the line data of the target line in the target area of ​​the coal mine to determine whether a fire will occur in the target area of ​​the coal mine.

[0118] The processing unit 30 is configured to determine whether a fire will occur in the target area based on the environmental data and / or the line data, and generate a prompt message and send it to the mobile terminal if it is determined that a fire will occur in the target area.

[0119] The above-mentioned processing unit can determine whether a fire will occur in the target area through environmental data and / or line data, and when it is determined that a fire will occur in the target area, it can promptly send a prompt message to the mobile terminal to prompt the staff to handle it in time. This can improve the efficiency of fire prevention in coal mines and further avoid the occurrence of fire accidents.

[0120] In the above-mentioned device, the first acquisition unit acquires environmental data of the target area of ​​the coal mine, the second acquisition unit acquires line data of the target line of the target area of ​​the coal mine, and the processing unit determines whether a fire will occur in the target area based on the environmental data and / or line data, and generates a prompt message and sends it to the mobile terminal when it is determined that a fire will occur in the target area. In this solution, the environmental data of the target area of ​​the coal mine can be collected and analyzed to determine whether a fire will occur in the target area. The line data of the target line of the target area of ​​the coal mine can also be collected and analyzed to determine whether a fire will occur in the target area. This solution can accurately determine whether a fire will occur in the target area through environmental data and / or line data, and can also issue prompt information in a timely manner when it is determined that a fire will occur in the target area to promptly remind the staff, thereby improving the fire prevention effect in the coal mine.

[0121] To ensure that subsequent fire prevention judgments are more accurate, the environmental data can be ensured to be more accurate. In one embodiment of the present application, the environmental data includes the volume of the target object, the oxygen content in the target area, and the temperature change in the target area. The first acquisition unit includes a first acquisition module, an extraction module, a second acquisition module, a third acquisition module, and a first determination module. The functions of each module are as follows:

[0122] We can first extract the gas content values ​​WSi in the same time period of multiple areas of the coal mine, and construct a set of gas content values ​​WSi. We can then call the preset maximum gas content value WSimax and compare it with the gas content values ​​WSi in each area. We can then mark the areas in multiple areas where the gas content value WSi is greater than or equal to the preset maximum gas content value WSimax as prevention areas (that is, target areas, and there may be multiple target areas).

[0123] A first acquisition module is used to acquire an image of the target object, wherein the image is acquired by an image acquisition device;

[0124] an extraction module, configured to extract volume-related information of the target object in the image, and determine the volume based on the volume-related information, wherein the volume-related information includes at least one of the following: length, width, and height;

[0125] Specifically, the larger the value of the volume of the target object is, the more uncontrollable the fire is when a fire occurs. Conversely, the smaller the value of the volume of the target object is, the easier it is to control the fire when a fire occurs.

[0126] a second acquisition module, configured to acquire the oxygen content in the target area, wherein the oxygen content is detected by an oxygen sensor;

[0127] Specifically, the greater the oxygen content in the target area, the greater the fire will develop when a fire occurs. Conversely, the smaller the oxygen content in the target area, the smaller the fire will develop when a fire occurs.

[0128] a third acquisition module, configured to acquire a first temperature within the target area at a first moment, and acquire a second temperature within the target area at a second moment, wherein the first temperature and the second temperature are detected by the first temperature sensor;

[0129] The first determining module is configured to determine the temperature change according to the first temperature and the second temperature.

[0130] Specifically, the temperature difference between the first temperature and the second temperature may be calculated, and the obtained temperature difference is the temperature change.

[0131] More specifically, the greater the increase in the temperature change within the target area, the greater the possibility of a fire. Conversely, the smaller the increase in the temperature change, the smaller the possibility of a fire.

[0132] The above-mentioned first acquisition module, extraction module, second acquisition module, third acquisition module and first determination module can obtain the volume of the target object in the target area, as well as the oxygen content and temperature changes in the target area, ensuring the accuracy of the environmental data of the target area, and further ensuring that whether a fire will occur in the target area can be further accurately determined based on the environmental data of the coal mine.

[0133] In some solutions, it is impossible to supervise the lines in the coal mine, which greatly increases the safety hazards in the coal mine and brings serious difficulties to subsequent fire control. In another embodiment of the present application, the line data includes: the voltage fluctuation value, the current slope value, and the average heating value. The second acquisition unit includes a fourth acquisition module, a second determination module, a fifth acquisition module, a third determination module, a sixth acquisition module, and a fourth determination module. The functions of each module are as follows:

[0134] Specifically, the coal mine's goaf can be marked as an analysis area, divided into i sub-areas, where i is a natural number. The sub-areas where the line surface is damaged are obtained from multiple sub-areas and marked as risk areas. Risk areas can be the target areas of this solution. Goaf refers to "cavities" created below the surface by human excavation or natural geological movement. Line surface damage is detected by collecting line image data using image acquisition equipment, which is then analyzed and processed. The grayscale value and color of the image are analyzed to determine whether the line surface is damaged. The specific analysis process can adopt any feasible technology in existing solutions and is not detailed here.

[0135] a fourth acquisition module, configured to acquire a plurality of voltage values ​​of the target line at a plurality of moments within a target time period, wherein the voltage values ​​are detected by a voltage sensor;

[0136] Specifically, the target time period may be divided into multiple sub-time periods at intervals of one minute, and the multiple sub-time periods or moments are marked as o, where o=1, 2, ..., q, where q is a positive integer.

[0137] A second determining module, configured to determine the voltage fluctuation value according to the plurality of voltage values;

[0138] Specifically, the voltage value can be marked as Vo, a set of voltage values ​​{V1, V2, ..., Vq} can be constructed, and the absolute value of the difference between the voltage values ​​corresponding to two adjacent moments can be used as the voltage fluctuation value, for example: |V2-V1|.

[0139] The greater the numerical difference between the voltage fluctuation values, the greater the amplitude of the voltage change, the more unstable the operating voltage, and the more likely electric sparks will occur. Conversely, the smaller the numerical difference between the voltage fluctuation values, the smaller the amplitude of the voltage change, and the more stable the operating voltage.

[0140] a fifth acquisition module, configured to acquire a plurality of current values ​​of the target line at a plurality of moments within the target time period, wherein the current values ​​are detected by a current sensor;

[0141] a third determining module, configured to determine the current slope value according to the plurality of current values;

[0142] Specifically, the current value can be marked as Ao, and a set of current values ​​{A1, A2, ..., Aq} can be constructed. According to the current values ​​and corresponding times corresponding to two adjacent moments, the absolute value of the slope corresponding to the two adjacent moments can be calculated as the current slope value, for example: |A2-A1|.

[0143] a sixth acquisition module, configured to acquire a plurality of third temperatures of the target line at a plurality of moments within the target time period, wherein the third temperatures are detected by the second temperature sensor;

[0144] The fourth determining module is configured to determine the average heating value according to the plurality of third temperatures.

[0145] Specifically, the third temperature may be marked as Qo, a set of third temperatures {Q1, Q2, ..., Qq} may be constructed, and the average heating value may be calculated based on the average value of the third temperatures corresponding to two adjacent moments.

[0146] The above-mentioned fourth acquisition module, second determination module, fifth acquisition module, third determination module, sixth acquisition module and fourth determination module can obtain the voltage fluctuation value, current slope value and average heating value of the target line in the target area, ensuring that the line data of the target line in the target area is more accurate, and thus ensuring that it is possible to further accurately determine whether a fire will occur in the target area based on the line data of the target line in the target area.

[0147] To further accurately determine whether a fire will occur in a target area based on the environmental data of the coal mine, a hierarchical analysis can be performed on the environmental data of the coal mine. In another embodiment of the present application, there are multiple pieces of environmental data, and the processing unit includes a seventh acquisition module, an eighth acquisition module, a first processing module, a second processing module, and a third processing module. The functions of each module are as follows:

[0148] a seventh acquisition module, configured to acquire a weight coefficient of each of the above environmental data, wherein the weight coefficient refers to the importance of the above environmental data in determining the result;

[0149] An eighth acquisition module is used to obtain the product of the environmental data and the weight coefficient corresponding to the environmental data to obtain a calculation result;

[0150] Specifically, the environmental data include the volume of the target object, the oxygen content in the target area, and the temperature change in the target area, which are marked as KTz, YHz, and WFz respectively.

[0151]

[0152] The calculation result is obtained, where a represents the weight coefficient corresponding to the volume of the target object, b represents the weight coefficient corresponding to the oxygen content in the target area, and c represents the weight coefficient corresponding to the temperature change in the target area. c>b>a, a+b+c=1.283, and Xo represents the calculation result. The specific weight coefficient is set to quantify each parameter in the formula to obtain a specific value for subsequent comparison.

[0153] A first processing module is configured to determine that a fire may occur in the target area when the calculation result is greater than or equal to the first environmental threshold, and generate first environmental prompt information and send it to the mobile terminal;

[0154] Specifically, when the calculation result is greater than or equal to the first environmental threshold, it is determined that the target area is very likely to be on fire, and a first environmental prompt message can be generated; the first environmental prompt message can be "expedited processing", of course, it can also be other text or voice prompt messages.

[0155] a second processing module, configured to, when the calculation result is less than the first environmental threshold and greater than or equal to the second environmental threshold, determine that a fire will occur in the target area, and generate a second environmental prompt message and send it to the mobile terminal, wherein the severity level corresponding to the first environmental prompt message is higher than the severity level corresponding to the second environmental prompt message;

[0156] Specifically, the second environment prompt information may be "process in time", and of course, may also be other text or voice prompt information.

[0157] The third processing module is used to determine that a fire will occur in the above-mentioned target area when the above-mentioned calculation result is less than the above-mentioned second environmental threshold, and generate a third environmental prompt information and send it to the above-mentioned mobile terminal, wherein the severity level corresponding to the above-mentioned second environmental prompt information is higher than the severity level corresponding to the above-mentioned third environmental prompt information.

[0158] Specifically, the third environment prompt information may be "waiting for processing", and of course, may also be other text or voice prompt information.

[0159] By formulating and analyzing the environmental data of the target area in an in-depth manner, it helps to improve fire prevention in mines, improve the safety of workers' lives and property, and avoid the occurrence of fire accidents.

[0160] The above-mentioned seventh acquisition module, eighth acquisition module, first processing module, second processing module and third processing module perform hierarchical analysis on the environmental data of the coal mine to further accurately determine whether a fire will occur in the target area through the environmental data, and then, when it is determined whether a fire will occur in the target area, the corresponding environmental prompt information can be obtained. In this way, the corresponding environmental prompt information can be broadcast through other audio playback devices or mobile terminals. The coal mine staff can leave the area where the fire will occur in the coal mine in time, or the staff can deal with it in time, thereby further avoiding the occurrence of fire accidents.

[0161] To further accurately determine whether a fire will occur in a target area based on the coal mine line data, a hierarchical analysis can be performed on the coal mine line data. In another embodiment of the present application, the processing unit includes a first construction module, a ninth acquisition module, a first comparison module, a fourth processing module, and a fifth processing module. The functions of each module are as follows:

[0162] A first construction module is configured to construct a corresponding curve based on the line data, wherein the curve represents a change in the line data;

[0163] Specifically, the line data includes voltage fluctuation value, current slope value and average heating value. A rectangular coordinate system is constructed with the independent variable time as the X-axis and the dependent variables voltage fluctuation value, current slope value and average heating value as the Y-axis, and curves of voltage fluctuation value, current slope value and average heating value are constructed to obtain an analysis curve graph.

[0164] a ninth acquisition module, configured to acquire a reference curve, wherein the reference curve is constructed based on reference line data, and the reference line data is reference data of the target line;

[0165] Specifically, the corresponding voltage fluctuation value, current slope value and average heat generation set when no abnormality occurs in the line during the historical time period can be obtained, and a curve graph of the voltage fluctuation value, current slope value and average heat generation versus time can be constructed as a reference curve graph, and each curve in the reference curve graph is a reference curve.

[0166] A first comparison module, configured to compare the degree of overlap between the curve and the reference curve;

[0167] A fourth processing module is configured to determine that a fire may occur in the target area when the overlap is less than an overlap threshold, and generate a line prompt message and send it to the mobile terminal;

[0168] Specifically, when it is determined that a fire will occur in the target area, the target area can also be marked as a high-risk area, and line prompt information can be generated and sent to the mobile terminal. After receiving the line prompt information, the mobile terminal can generate a "line rectification" text, thereby prompting the staff to rectify and replace the high-risk area in time to avoid electric sparks in the line causing gas explosions, which in turn helps to improve the safety of the staff's working environment and reduce the safety hazards of the internal lines in the mine.

[0169] The fifth processing module is used to determine that no fire will occur in the target area when the overlap is greater than or equal to the overlap threshold.

[0170] Specifically, the overlap threshold may be 80%, 90%, or other thresholds.

[0171] The above-mentioned first construction module, ninth acquisition module, first comparison module, fourth processing module and fifth processing module can analyze the line data corresponding to the target line in the target area of ​​the coal mine, so as to further accurately determine whether a fire will occur in the target area through the line data, and then, when it is determined whether a fire will occur in the target area, a line prompt information can be issued, and the coal mine staff can leave the area of ​​the coal mine where the fire will occur in time, or the staff can deal with it in time, thereby further avoiding the occurrence of fire accidents and reducing the safety hazards of the target line.

[0172] In order to further accurately determine whether a fire will occur in the target area based on the environmental data and line data of the coal mine, a hierarchical analysis can be performed on the environmental data and line data of the coal mine. In an optional embodiment of the present application, the processing unit includes a second construction module, a second comparison module, a sixth processing module, a seventh processing module, and an eighth processing module. The functions of each module are as follows:

[0173] A second construction module is configured to construct a corresponding curve based on the line data, wherein the curve represents a change in the line data;

[0174] Specifically, a reference curve may also be obtained, wherein the reference curve is constructed based on reference line data, and the reference line data is reference data of the target line.

[0175] a second comparison module, configured to compare the degree of coincidence between the curve and a reference curve, wherein the reference curve is constructed based on reference line data, and the reference line data is reference data of the target line;

[0176] Specifically, the weight coefficient of each of the above environmental data can also be obtained, wherein the above weight coefficient refers to the importance of the above environmental data in determining the result, and the product of the above environmental data and the weight coefficient corresponding to the above environmental data is obtained to obtain the calculation result.

[0177] a sixth processing module, configured to, if the calculation result is greater than or equal to the first environmental threshold and the overlap is less than the overlap threshold, determine that a fire will occur in the target area, and generate first environmental prompt information and route prompt information and send them to the mobile terminal, wherein the calculation result is the product of the environmental data and a weight coefficient corresponding to the environmental data;

[0178] a seventh processing module, configured to, if the calculation result is less than the first environmental threshold and greater than or equal to the second environmental threshold, and the overlap is less than the overlap threshold, determine that a fire may occur in the target area, and generate second environmental prompt information and the line prompt information and send them to the mobile terminal;

[0179] The eighth processing module is used to determine that a fire will occur in the target area when the above-mentioned calculation result is less than the above-mentioned second environmental threshold and the overlap is less than the above-mentioned overlap threshold, and generate third environmental prompt information and the above-mentioned line prompt information and send them to the above-mentioned mobile terminal.

[0180] The above-mentioned second construction module, second comparison module, sixth processing module, seventh processing module and eighth processing module perform hierarchical analysis on the environmental data and line data of the coal mine to further accurately determine whether a fire will occur in the target area through the environmental data and line data. Then, when it is determined whether a fire will occur in the target area, the corresponding environmental prompt information can be obtained. In this way, the corresponding environmental prompt information and line prompt information can be broadcast through other audio playback devices or mobile terminals. The coal mine staff can leave the area where the fire will occur in the coal mine in time, or the staff can deal with it in time, thereby further avoiding the occurrence of fire accidents and reducing the safety hazards of the target line.

[0181] In some solutions, it is impossible to supervise the fire-fighting equipment in the coal mine, which will greatly increase the safety hazards in the coal mine and bring serious difficulties to subsequent fire control. In a specific embodiment of the present application, the above-mentioned device further includes a third acquisition unit, a determination unit and a generation unit. The functions of each unit are as follows:

[0182] a third acquisition unit, configured to acquire firefighting data of a firefighting area of ​​a coal mine, wherein the firefighting data includes at least one of the following: time of commissioning of firefighting equipment, effective use time of firefighting equipment, lighting brightness of firefighting equipment, and dust accumulation on firefighting equipment;

[0183] Specifically, the area where the firefighting equipment of the coal mine is placed can be marked as a firefighting area.

[0184] a determination unit, configured to determine whether the fire-fighting equipment needs to be replaced and / or repaired based on the fire-fighting data;

[0185] Specifically, the time difference between the time the fire-fighting equipment is put into use and the effective use time of the fire-fighting equipment can be calculated to obtain the remaining time of the fire-fighting equipment, and marked as the remaining time S. The remaining time S is compared and analyzed with the preset remaining time YS. When the remaining time S is greater than or equal to the preset remaining time YS, it is determined that the fire-fighting equipment does not need to be replaced. When the remaining time S is less than the preset remaining time YS, it is determined that the fire-fighting equipment needs to be replaced.

[0186] The longer the remaining time S of the fire-fighting equipment, the less likely it is that the fire-fighting equipment will malfunction. Conversely, the shorter the remaining time S of the fire-fighting equipment, the greater the possibility that the fire-fighting equipment will malfunction. The greater the dust accumulation value on the fire-fighting equipment, the greater the impact on the lighting of the fire-fighting equipment and the more it affects the lighting brightness of the fire-fighting equipment. Conversely, the smaller the dust accumulation value on the fire-fighting equipment, the smaller the impact on the lighting of the fire-fighting equipment.

[0187] Specifically, the lighting brightness and dust accumulation of fire-fighting equipment can be obtained through image processing technology. Any feasible image processing technology can be used and this solution does not limit it.

[0188] Optionally, the lighting brightness of the fire-fighting equipment can be marked as Zk, and the dust accumulation on the fire-fighting equipment can be marked as Jk, and the following formula can be used:

[0189]

[0190] The calculation result is obtained, where α is the weight coefficient corresponding to the lighting brightness of the fire-fighting equipment, β is the weight coefficient corresponding to the dust accumulation on the fire-fighting equipment, Xh represents the calculation result, k=1, 2,…, m, and m is a positive integer. The calculation result Xh is compared and analyzed with the preset fire threshold. When the calculation result is greater than or equal to the preset fire threshold, it is determined that the fire-fighting equipment does not need maintenance. When the calculation result is less than the preset fire threshold, it is determined that the fire-fighting equipment needs maintenance.

[0191] The generating unit is used to generate replacement information and / or maintenance information and send it to the above-mentioned mobile terminal when it is determined that the fire-fighting equipment needs to be replaced and / or repaired.

[0192] After receiving the replacement information, the mobile terminal can also generate a "firefighting replacement" text document to remind staff to replace the firefighting equipment that needs to be replaced in a timely manner, thereby reducing the possibility of firefighting equipment failure and helping to improve fire safety in the mine.

[0193] After receiving maintenance information, the mobile terminal can also control the corresponding fire-fighting equipment to flash an alarm, which helps staff to promptly inspect and repair the fire-fighting equipment, improve the lighting quality of the fire-fighting equipment, and at the same time improve the supervision ability of the fire-fighting equipment, which helps to improve the fire prevention capabilities of the coal preparation plant above the mine.

[0194] The above-mentioned third acquisition unit, determination unit and generation unit can collect and perform hierarchical analysis on the fire data of the fire area to determine whether the fire equipment needs to be replaced and / or repaired, and can promptly issue corresponding information when the fire equipment needs to be replaced and / or repaired, so that the staff can be reminded in time to replace and / or repair the fire equipment that needs to be replaced and / or repaired, thereby reducing the possibility of failure of the fire equipment.

[0195] The above-mentioned coal mine fire prevention device includes a processor and a memory. The above-mentioned first acquisition unit, second acquisition unit and processing unit are all stored in the memory as program units, and the processor executes the above-mentioned program units stored in the memory to realize corresponding functions.

[0196] The processor includes a kernel, which retrieves the corresponding program unit from the memory. One or more kernels can be set, and the fire prevention effect in the coal mine can be improved by adjusting the kernel parameters.

[0197] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM, and the memory includes at least one memory chip.

[0198] An embodiment of the present invention provides a computer-readable storage medium having a program stored thereon, which implements the above-mentioned method for preventing fire in coal mines when executed by a processor.

[0199] An embodiment of the present invention provides a processor, which is used to run a program, wherein the program executes the method for preventing fire in coal mines when running.

[0200] The present application also provides a coal mine fire prevention system, comprising a coal mine fire prevention device, multiple sensors, and fire-fighting equipment. The coal mine fire prevention device is used to execute any one of the above methods.

[0201] In the above-mentioned system, since it includes any of the above-mentioned methods, the method first obtains environmental data of the target area of ​​the coal mine, then obtains line data of the target line of the target area of ​​the coal mine, and finally determines whether a fire will occur in the target area based on the environmental data and / or line data, and generates a prompt message and sends it to the mobile terminal when it is determined that a fire will occur in the target area. In this solution, the environmental data of the target area of ​​the coal mine can be collected and analyzed to determine whether a fire will occur in the target area, and the line data of the target line of the target area of ​​the coal mine can also be collected and analyzed to determine whether a fire will occur in the target area. This solution can accurately determine whether a fire will occur in the target area through environmental data and / or line data, and can also issue prompt information in a timely manner to promptly remind staff when it is determined that a fire will occur in the target area, thereby improving the fire prevention effect in the coal mine.

[0202] An embodiment of the present invention provides a device, comprising a processor, a memory, and a program stored in the memory and executable on the processor. When the processor executes the program, at least the following steps are performed:

[0203] Step S101, obtaining environmental data of a target area of ​​a coal mine, wherein the environmental data includes at least one of the following: the volume of a target object, the oxygen content in the target area, and the temperature change in the target area;

[0204] Step S102, obtaining line data of the target line in the target area of ​​the coal mine, wherein the line data includes at least one of the following: voltage fluctuation value, current slope value, and average heating value;

[0205] Step S103 , determining whether a fire will occur in the target area based on the environmental data and / or the line data, and generating a prompt message to send to the mobile terminal if it is determined that a fire will occur in the target area.

[0206] The devices in this article can be servers, PCs, PADs, mobile phones, etc.

[0207] The present application also provides a computer program product, which, when executed on a data processing device, is adapted to execute a program for initializing at least the following method steps:

[0208] Step S101, obtaining environmental data of a target area of ​​a coal mine, wherein the environmental data includes at least one of the following: the volume of a target object, the oxygen content in the target area, and the temperature change in the target area;

[0209] Step S102, obtaining line data of the target line in the target area of ​​the coal mine, wherein the line data includes at least one of the following: voltage fluctuation value, current slope value, and average heating value;

[0210] Step S103 , determining whether a fire will occur in the target area based on the environmental data and / or the line data, and generating a prompt message to send to the mobile terminal if it is determined that a fire will occur in the target area.

[0211] In order to enable those skilled in the art to more clearly understand the technical solution of the present application, the technical solution and technical effects of the present application will be explained below with reference to specific embodiments.

[0212] Example

[0213] This embodiment provides a fire prevention system for coal mines. The system structure diagram is as follows: Figure 3 As shown, the system includes a supervision platform, a pre-processing and prevention unit, a storage module, a line safety supervision unit, a fire supervision unit, a display terminal, and an early warning unit. The supervision platform is connected to the pre-processing and prevention unit in a two-way communication manner, the supervision platform is connected to the storage module in a two-way communication manner, the supervision platform is connected to the line safety supervision unit in a two-way communication manner, the supervision platform is connected to the fire supervision unit in a two-way communication manner, the supervision platform is connected to the display terminal in a one-way communication manner, and the supervision platform is connected to the early warning unit in a one-way communication manner. The storage module is used for data storage. The functions of each unit are as follows:

[0214] The pre-processing and prevention unit is used to collect environmental data from the mine, including the volume value of combustible materials, oxygen content value, and temperature rise value (temperature change), and pre-process and analyze the environmental data. The obtained first-level prevention signal (first environmental prompt information), second-level prevention signal (second environmental prompt information), and third-level prevention signal (third environmental prompt information) are sent to the early warning unit via the supervision platform;

[0215] The line safety monitoring unit is used to collect line data below the mine, including voltage fluctuation values, current slope values, and average heating values. It also analyzes the lines and sends the resulting high-risk signals (line prompt information) to the display terminal via the monitoring platform.

[0216] The fire monitoring unit is used to collect fire data of fire-fighting equipment, including remaining time, lighting value, and interference dust accumulation value. It analyzes the fire data and sends the obtained replacement signal and maintenance signal to the display terminal.

[0217] After receiving a high-risk signal, the display terminal immediately generates a "line rectification" text document;

[0218] After receiving the signal to be replaced, the display terminal immediately generates a "firefighting replacement" text document;

[0219] After receiving the maintenance signal, the display terminal immediately turns the corresponding fire lighting equipment red as a warning;

[0220] The storage module is used for data storage.

[0221] In the above embodiments of the present invention, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0222] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only exemplary. For example, the division of the above-mentioned units can be a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0223] The units described above as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0224] In addition, the functional units in the various embodiments of the present invention may be integrated into a single processing unit, each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0225] If the above-mentioned integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server or network device, etc.) to execute all or part of the steps of the above-mentioned methods of each embodiment of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk or an optical disk.

[0226] From the above description, it can be seen that the above embodiments of the present application achieve the following technical effects:

[0227] 1) The method for preventing fire in a coal mine of the present application first obtains environmental data of the target area of ​​the coal mine, then obtains line data of the target line of the target area of ​​the coal mine, and finally determines whether a fire will occur in the target area based on the environmental data and / or line data, and generates a prompt message and sends it to the mobile terminal when it is determined that a fire will occur in the target area. In this solution, the environmental data of the target area of ​​the coal mine can be collected and analyzed to determine whether a fire will occur in the target area, and the line data of the target line of the target area of ​​the coal mine can also be collected and analyzed to determine whether a fire will occur in the target area. This solution can accurately determine whether a fire will occur in the target area through environmental data and / or line data, and can also issue prompt information in a timely manner to promptly remind staff when it is determined that a fire will occur in the target area, thereby improving the fire prevention effect in the coal mine.

[0228] 2) The coal mine fire prevention device of the present application comprises a first acquisition unit acquiring environmental data of a target area of ​​the coal mine, a second acquisition unit acquiring line data of a target line in the target area of ​​the coal mine, and a processing unit determining whether a fire will occur in the target area based on the environmental data and / or line data, and generating a prompt message to send to a mobile terminal when it is determined that a fire will occur in the target area. In this solution, the environmental data of the target area of ​​the coal mine can be collected and analyzed to determine whether a fire will occur in the target area, and the line data of the target line in the target area of ​​the coal mine can be collected and analyzed to determine whether a fire will occur in the target area. This solution can accurately determine whether a fire will occur in the target area through environmental data and / or line data, and can also issue prompt messages in a timely manner to promptly alert staff when it is determined that a fire will occur in the target area, thereby improving the fire prevention effect in coal mines.

[0229] 3) The coal mine fire prevention system of the present application includes any of the above methods. In this method, the environmental data of the target area of ​​the coal mine is first obtained, and then the line data of the target line of the target area of ​​the coal mine is obtained. Finally, it is determined whether a fire will occur in the target area based on the environmental data and / or line data. When it is determined that a fire will occur in the target area, a prompt message is generated and sent to the mobile terminal. In this solution, the environmental data of the target area of ​​the coal mine can be collected and analyzed to determine whether a fire will occur in the target area. The line data of the target line of the target area of ​​the coal mine can also be collected and analyzed to determine whether a fire will occur in the target area. This solution can accurately determine whether a fire will occur in the target area through environmental data and / or line data. When it is determined that a fire will occur in the target area, a prompt message can be issued in a timely manner to prompt the staff in a timely manner, thereby improving the fire prevention effect in the coal mine.

[0230] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A method for preventing fire in a coal mine, characterized in that: include: Acquiring environmental data of a target area of ​​a coal mine, the environmental data including: a volume of a target object, an oxygen content in the target area, and a temperature change in the target area; Acquire line data of a target line in the target area of ​​the coal mine, wherein the line data includes: voltage fluctuation value, current slope value, and average heating value; Determining whether a fire will occur in the target area based on the environmental data and the line data, wherein a weight coefficient of each environmental data is obtained, wherein the weight coefficient refers to the importance of the environmental data in the determination result; obtaining a product of the environmental data and the weight coefficient corresponding to the environmental data to obtain a calculation result; Determining whether a fire will occur in the target area based on the line data includes: constructing a corresponding curve based on the line data, wherein the curve represents a change in the line data; obtaining a reference curve, wherein the reference curve is constructed based on reference line data, and the reference line data is reference data of the target line; comparing the degree of overlap between the curve and the reference curve; if the degree of overlap is less than a degree of overlap threshold, determining that a fire will occur in the target area, and generating line prompt information to send to the mobile terminal; if the degree of overlap is greater than or equal to the degree of overlap threshold, determining that a fire will not occur in the target area; And when it is determined that a fire will occur in the target area, a prompt message is generated and sent to the mobile terminal.

2. The method according to claim 1, characterized in that The environmental data includes the volume of the target object, the oxygen content in the target area, and the temperature change in the target area. Acquiring the environmental data of the target area of ​​the coal mine includes: Acquiring an image of the target object, wherein the image is acquired by an image acquisition device; Extracting volume-related information of the target object in the image, and determining the volume according to the volume-related information, wherein the volume-related information includes at least one of the following: length, width, and height; obtaining the oxygen content in the target area, wherein the oxygen content is detected by an oxygen sensor; Acquire a first temperature within the target area at a first moment, and acquire a second temperature within the target area at a second moment, wherein the first temperature and the second temperature are detected by a first temperature sensor; The temperature change is determined based on the first temperature and the second temperature.

3. The method according to claim 1, characterized in that The line data includes: the voltage fluctuation value, the current slope value, and the average calorific value. Acquiring the line data of the target line in the target area of ​​the coal mine includes: Acquire multiple voltage values ​​of the target line at multiple moments in a target time period, wherein the voltage values ​​are detected by a voltage sensor; determining the voltage fluctuation value according to the plurality of voltage values; Acquire multiple current values ​​of the target line at multiple moments in the target time period, wherein the current values ​​are detected by a current sensor; determining the current slope value according to the plurality of current values; Acquiring multiple third temperatures of the target line at multiple moments in the target time period, wherein the third temperatures are detected by the second temperature sensor; The average heating value is determined based on the plurality of third temperatures.

4. The method according to claim 1, wherein There are multiple pieces of environmental data, and determining whether a fire will occur in the target area according to the environmental data, and generating a prompt message and sending it to the mobile terminal when it is determined that a fire will occur in the target area, including: When the calculation result is greater than or equal to the first environmental threshold, determining that a fire will occur in the target area, and generating first environmental prompt information and sending it to the mobile terminal; When the calculated result is less than the first environmental threshold and greater than or equal to the second environmental threshold, determining that a fire will occur in the target area, and generating a second environmental prompt message and sending it to the mobile terminal, wherein the severity level corresponding to the first environmental prompt message is higher than the severity level corresponding to the second environmental prompt message; When the calculation result is less than the second environmental threshold, it is determined that a fire will occur in the target area, and a third environmental prompt information is generated and sent to the mobile terminal, wherein the severity level corresponding to the second environmental prompt information is higher than the severity level corresponding to the third environmental prompt information.

5. The method according to claim 1, wherein Determining whether a fire will occur in the target area according to the environmental data and the line data, and generating a prompt message and sending it to the mobile terminal if it is determined that a fire will occur in the target area, including: Constructing a corresponding curve based on the line data, wherein the curve represents a change in the line data; comparing the degree of coincidence between the curve and a reference curve, wherein the reference curve is constructed based on reference line data, and the reference line data is reference data of the target line; If the calculation result is greater than or equal to a first environmental threshold and the overlap is less than the overlap threshold, determining that a fire will occur in the target area, and generating first environmental prompt information and line prompt information and sending them to the mobile terminal, wherein the calculation result is the product of the environmental data and the weight coefficient corresponding to the environmental data; When the calculation result is less than the first environmental threshold and greater than or equal to the second environmental threshold, and the overlap is less than the overlap threshold, determining that a fire will occur in the target area, and generating second environmental prompt information and the line prompt information and sending them to the mobile terminal; When the calculation result is less than the second environmental threshold and the overlap is less than the overlap threshold, it is determined that a fire will occur in the target area, and third environmental prompt information and the line prompt information are generated and sent to the mobile terminal.

6. The method according to claim 1, characterized in that The method further comprises: Obtaining firefighting data of a firefighting area of ​​a coal mine, the firefighting data including at least one of the following: time of commissioning of firefighting equipment, effective use time of firefighting equipment, lighting brightness of firefighting equipment, and dust accumulation on firefighting equipment; determining whether firefighting equipment needs to be replaced and / or repaired based on the firefighting data; When it is determined that the fire-fighting equipment needs to be replaced and / or repaired, replacement information and / or repair information is generated and sent to the mobile terminal.

7. A fire prevention device for coal mines, characterized in that: include: A first acquisition unit is configured to acquire environmental data of a target area of ​​a coal mine, wherein the environmental data includes: a volume of a target object, an oxygen content in the target area, and a temperature change in the target area; A second acquisition unit is configured to acquire line data of a target line in the target area of ​​the coal mine, wherein the line data includes: a voltage fluctuation value, a current slope value, and an average heating value; a processing unit, configured to determine whether a fire will occur in the target area based on the environmental data and the line data, the processing unit comprising a seventh acquisition module and an eighth acquisition module, the seventh acquisition module being configured to acquire a weight coefficient of each environmental data, wherein the weight coefficient refers to the importance of the environmental data in the determination result; and the eighth acquisition module being configured to acquire a product of the environmental data and the weight coefficient corresponding to the environmental data to obtain a calculation result; The processing unit includes a first construction module, a ninth acquisition module, a first comparison module, a fourth processing module, and a fifth processing module. The first construction module is used to construct a corresponding curve based on the line data, wherein the curve represents the change of the line data; the ninth acquisition module is used to obtain a reference curve, wherein the reference curve is constructed based on reference line data, and the reference line data is the reference data of the target line; the first comparison module is used to compare the overlap between the curve and the reference curve; the fourth processing module is used to determine that a fire will occur in the target area when the overlap is less than a overlap threshold, and generate a line prompt message to send to the mobile terminal; the fifth processing module is used to determine that a fire will not occur in the target area when the overlap is greater than or equal to the overlap threshold. And when it is determined that a fire will occur in the target area, a prompt message is generated and sent to the mobile terminal.

8. A computer-readable storage medium, characterized in that The computer-readable storage medium includes a stored program, wherein the program executes the method according to any one of claims 1 to 6.

9. A fire prevention system for a coal mine, characterized in that: include: A mobile terminal, a device for preventing fire in a coal mine, multiple sensors, and fire-fighting equipment, wherein the device for preventing fire in a coal mine is used to execute the method according to any one of claims 1 to 6.

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