CN115174629A - Mine safety monitoring method based on edge calculation - Google Patents
Mine safety monitoring method based on edge calculation Download PDFInfo
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Abstract
The invention provides a mine safety monitoring method based on edge calculation, which is characterized in that edge calculation node terminals are respectively installed at a plurality of position points in a mine, each edge calculation node terminal is respectively connected with a camera and an environment sensor so as to obtain an environment image of an internal region of the mine and environment data of the internal region of the mine, and then whether a mine safety accident event occurs in the internal region of the mine and whether an environment safety hidden danger event exists in the internal region of the mine are judged; then sending notification messages to operator terminals distributed in the mine through the edge computing node terminals, and sending event related information to the management platform terminal; according to the safety monitoring method, the edge computing node terminals are arranged at different positions in the mine, the edge computing node terminals are used as references to independently monitor safety of different area ranges in the mine, detected environmental images and environmental data can be independently analyzed and processed, and real-time performance and accuracy of safety monitoring of mine operation are improved.
Description
Technical Field
The invention relates to the technical field of mine operation management, in particular to a mine safety monitoring method based on edge calculation.
Background
Mine mining is to carry out manual work in the complicated mine area of topography, in order to guarantee the smooth safe of mine mining work and go on, prior art can use the inside operation image of real-time shooting mine of artifical video monitoring's mode, above-mentioned mode is subject to the inside complicated topography of mine area, can't be in real time with the operation image transmission who obtains to external platform terminal to still there can be the condition of image transmission signal distortion and time delay, reduces real-time and the accuracy to mine operation safety monitoring.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a mine safety monitoring method based on edge calculation, which is characterized in that edge calculation node terminals are respectively installed at a plurality of positions in a mine, each edge calculation node terminal is respectively connected with a camera and an environment sensor so as to obtain an environment image of an internal region of the mine and environment data of the internal region of the mine, and then whether a mine safety accident event occurs in the internal region of the mine or not and whether an environment safety hidden danger event exists in the internal region of the mine or not are judged; then sending notification messages to operator terminals distributed in the mine through the edge computing node terminals, and sending event related information to the management platform terminal; according to the safety monitoring method, the edge computing node terminals are arranged at different positions in the mine, and independent safety monitoring is carried out on different area ranges in the mine by taking the edge computing node terminals as the reference, so that the partitioned monitoring of the interior of the mine is realized, and the detected environmental images and environmental data can be independently analyzed and processed, so that the real-time performance and the accuracy of the safety monitoring of mine operation are improved.
The invention provides a mine safety monitoring method based on edge calculation, which comprises the following steps:
step S1, respectively installing edge computing node terminals at a plurality of position points in a mine; respectively connecting each edge computing node terminal with at least one camera and at least one environment sensor, and indicating the cameras and the environment sensors to carry out state initialization;
s2, instructing the camera to shoot the internal area of the mine to obtain an environment image of the internal area of the mine; analyzing and processing the environment image of the internal region of the mine through the edge computing node terminal, and judging whether the internal region of the mine has a mine safety accident event or not;
s3, indicating the environment sensor to sample the internal area of the mine to obtain the environmental data of the internal area of the mine; analyzing and processing the internal mine environment data through the edge computing node terminal, and judging whether an environment potential safety hazard event exists in the internal mine area;
step S4, according to the judgment result of the step S2 or the step S3, sending a notification message to the operator terminals distributed in the mine through the edge computing node terminal; and sending the event related information to the management platform terminal through the edge computing node terminal.
Further, in step S1, installing edge computing node terminals at a plurality of location points inside the mine respectively specifically includes:
the method comprises the following steps of (1) defining a plurality of contour lines in a mine, and determining a plurality of uniformly spaced position points corresponding to each contour line in the mine; and respectively installing edge computing node terminals on each position point, wherein each edge computing node terminal is independently communicated and connected with the management platform terminal.
Further, in the step S1, the independent communication connection between each edge computing node terminal and the management platform terminal specifically includes:
the communication between each edge computing node terminal and the management platform terminal is that communication data is transmitted and compared to obtain the distortion ratio of each data transmission of each edge computing node, and the pulse number input at each time by a stepping motor installed at the power supply end of each edge computing node terminal is controlled according to the distortion ratio, wherein the stepping motor comprises a sliding dial piece and a metal scribing piece, the sliding dial piece is positioned at the head end of the metal scribing piece and can slide in the corresponding area of the metal scribing piece and other non-metal areas under the driving of the rotation of the stepping motor, when the input pulse number reaches a preset number, the edge computing terminal and the corresponding stepping motor are powered off, and the process is as follows:
step S101, after each edge computing node terminal finishes data transmission to the management platform terminal, the management platform terminal sends the data back to the corresponding edge computing node terminal, and by using the following formula (1), the distortion ratio of the data transmitted by each edge computing node terminal at this time is obtained according to the comparison between the data sent by each edge computing node terminal to the management platform terminal and the data sent back by the management platform terminal,
in the formula (1), S (a) represents a distortion ratio of data transmitted by the a-th edge computing node terminal this time; f 16 (a) Representing hexadecimal driving of data sent by the a-th edge computing node terminal to the management platform terminal; f. of 16 (a) The hexadecimal form of the data sent back by the management platform terminal is received by the a-th edge computing node terminal;>>2 represents a right shift two bit operation; [] 10 Indicating that the data in the brackets is converted into decimal form;
step S102, using the following formula (2), according to the distortion ratio of each data transmission of each edge computing node terminal, judging the control weight of each data transmission of each edge computing node terminal,
in the above formula (2), G (a) represents a control weight of the data transmitted this time by the a-th edge computing node terminal; n represents the number of edge calculation node terminals which perform data transmission at the same time as the a-th edge calculation node terminal, and the a-th edge calculation node terminal is also counted, and if only the a-th edge calculation node terminal performs data transmission at the same time, n =1; sum { } denotes summing the hexadecimal data in parentheses bit by bit; | | represents the absolute value;
step S103, controlling the number of pulses input by the stepping motor installed at the power supply end of each edge calculation node terminal each time according to the control weight and distortion ratio of each edge calculation node terminal data transmission each time by using the following formula (3),
D(a)＝int[M(a)×G(a)×S(a)] (3)
in the formula (3), D (a) represents the number of pulses input this time by the stepping motor at the power supply end of the a-th edge computing node terminal; m (a) represents the number of pulses required for the stepping motor at the power supply end of the a-th edge computing node terminal to drive the sliding poke piece to rotate clockwise from the starting position of the metal scribing piece to the tail end position of the metal scribing piece; int [ ] indicates that the rounding operation is performed on the data in parentheses.
Further, in step S1, respectively connecting each edge computing node terminal with at least one camera and at least one environmental sensor, and instructing the camera and the environmental sensor to perform state initialization specifically includes:
each edge computing node terminal is respectively connected with at least one visible light camera and at least one thermal infrared camera;
connecting each edge computing node terminal with a vibration sensor and a gas sensor respectively;
and indicating the visible light camera, the thermal infrared camera, the vibration sensor and the gas sensor to remove cache data generated in the historical detection process.
Further, in step S2, instructing the camera to shoot the internal area of the mine, and obtaining the environmental image of the internal area of the mine specifically includes:
the camera is instructed to carry out periodic scanning shooting on the internal area of the mine, so that an environmental panoramic image of the internal area of the mine is obtained; and the shooting depth of field corresponding to the scanning and shooting of the camera is not less than the distance between two adjacent position points in the mine.
Further, in step S2, analyzing and processing the environment image of the mine internal area through the edge computing node terminal, and determining whether a mine safety accident event occurs in the mine internal area specifically includes:
acquiring a panoramic image of the environment of the internal area of the mine shot by the camera through the edge computing node terminal every time the camera finishes scanning and shooting for one time;
extracting body action posture information and mine mountain structure information of mine operators from the panoramic image of the mine internal environment through the edge computing node terminal;
determining whether mine operators have a tumbling event or do illegal mining actions according to the body action posture information;
determining whether the mine mountain has mountain structural defects or not according to the mine mountain structural information;
if the mine operation personnel are determined to have a tumbling event or make an illegal mining action, or the mine mountain has mountain structure defects, determining that the mine safety accident event occurs in the internal region of the mine; otherwise, determining that the mine safety accident event does not occur in the internal region of the mine.
Further, in step S3, instructing the environment sensor to sample the internal area of the mine where the environment sensor is located, and obtaining the environmental data of the internal area of the mine specifically includes:
and indicating the environment sensor to acquire the mountain vibration amplitude, the mountain vibration frequency and the gas concentration of the mine internal area.
Further, in step S3, analyzing and processing the mine internal environment data by the edge computing node terminal, and determining whether an environmental potential safety hazard event exists in the mine internal region specifically includes:
comparing the mountain vibration amplitude with a preset vibration amplitude threshold value through the edge computing node terminal, comparing the mountain vibration frequency with a preset vibration frequency threshold value, and comparing the gas concentration with a preset concentration threshold value;
if the mountain vibration amplitude exceeds a preset vibration amplitude threshold value for comparison, or the mountain vibration frequency exceeds a preset vibration frequency threshold value for comparison, or the gas concentration exceeds a preset concentration threshold value, determining that an environmental potential safety hazard event exists in the internal region of the mine; otherwise, determining that no environmental safety hidden trouble event exists in the internal region of the mine.
Further, in the step S4, a notification message is sent to the operator terminals distributed inside the mine through the edge computing node terminal according to the determination result in the step S2 or the step S3; the sending of the event related information to the management platform terminal through the edge computing node terminal specifically includes:
if it is determined that a mine safety accident event occurs or an environmental potential safety hazard event exists in the mine internal area, sending a notification message to terminals held by operators distributed in the mine through an edge computing node terminal; the notification message comprises occurrence position information corresponding to a mine safety accident event or an event with environmental safety hidden danger;
sending event related information to a management platform terminal through an edge computing node terminal; the event related information comprises occurrence position information and occurrence time information corresponding to mine safety accident events or events with environmental safety hidden dangers.
Compared with the prior art, the edge-computing-based mine safety monitoring method is characterized in that edge computing node terminals are respectively installed at a plurality of position points in a mine, each edge computing node terminal is respectively connected with a camera and an environment sensor, so that an environment image of an internal region of the mine and environment data of the internal region of the mine are obtained, and then whether a mine safety accident event occurs in the internal region of the mine or not and whether an environment safety hidden danger event exists in the internal region of the mine or not are judged; then sending notification messages to operator terminals distributed in the mine through the edge computing node terminals, and sending event related information to the management platform terminal; according to the safety monitoring method, the edge computing node terminals are arranged at different positions in the mine, and independent safety monitoring is carried out on different area ranges in the mine by taking the edge computing node terminals as the reference, so that the mine interior is monitored in a partitioned mode, detected environmental images and environmental data can be analyzed and processed independently, and the real-time performance and the accuracy of the safety monitoring of mine operation are improved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic flow chart of the mine safety monitoring method based on edge calculation provided by the invention.
Fig. 2 is a schematic diagram of connection between an edge calculation node terminal and a stepping motor in the edge calculation-based mine safety monitoring method provided by the invention.
Reference numerals: 1. an edge computing node terminal; 2. a stepping motor; 3. sliding the shifting piece; 4. and (4) scribing metal.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
Fig. 1 is a schematic flow chart of a mine safety monitoring method based on edge calculation according to an embodiment of the present invention. The mine safety monitoring method based on edge calculation comprises the following steps:
step S1, respectively installing edge computing node terminals at a plurality of position points in a mine; each edge computing node terminal is respectively connected with at least one camera and at least one environment sensor, and the camera and the environment sensor are indicated to carry out state initialization;
s2, instructing the camera to shoot the internal area of the mine to obtain an environment image of the internal area of the mine; analyzing and processing the environment image of the internal region of the mine through the edge computing node terminal, and judging whether the internal region of the mine has a mine safety accident event;
s3, instructing the environment sensor to sample the internal area of the mine to obtain the environmental data of the internal area of the mine; analyzing and processing the internal environment data of the mine through the edge computing node terminal, and judging whether an environmental potential safety hazard event exists in the internal area of the mine;
step S4, according to the judgment result of the step S2 or the step S3, sending a notification message to the operator terminals distributed in the mine through the edge computing node terminal; and sending the event related information to the management platform terminal through the edge computing node terminal.
The beneficial effects of the above technical scheme are: according to the mine safety monitoring method based on edge computing, edge computing node terminals are respectively installed at a plurality of position points in a mine, each edge computing node terminal is respectively connected with a camera and an environment sensor, so that an environment image of an internal region of the mine and environment data of the internal region of the mine are obtained, and then whether a mine safety accident event occurs in the internal region of the mine and whether an environment safety hidden danger event exists in the internal region of the mine are judged; then sending notification messages to operator terminals distributed in the mine through the edge computing node terminals, and sending event related information to the management platform terminal; according to the safety monitoring method, the edge computing node terminals are arranged at different positions in the mine, and independent safety monitoring is carried out on different area ranges in the mine by taking the edge computing node terminals as the reference, so that the partitioned monitoring of the interior of the mine is realized, and the detected environmental images and environmental data can be independently analyzed and processed, so that the real-time performance and the accuracy of the safety monitoring of mine operation are improved.
Preferably, in step S1, installing edge computing node terminals at a plurality of location points in the mine respectively specifically includes:
the method comprises the following steps of (1) dividing a plurality of contour lines in a mine, and determining a plurality of uniformly spaced position points corresponding to each contour line in the mine; and respectively installing edge computing node terminals on each position point, wherein each edge computing node terminal is independently communicated and connected with the management platform terminal.
The beneficial effects of the above technical scheme are: the contour lines in the mine are used as a reference, and a plurality of edge computing node terminals are installed on each contour line at intervals, so that each edge computing node terminal can only monitor a specific mine internal area, the monitoring areas of different edge computing node terminals are prevented from being overlapped, and the full-coverage monitoring of the mine internal can be realized under the condition that a small number of edge computing node terminals are used.
Preferably, in step S1, each edge computing node terminal is in independent communication connection with the management platform terminal, which specifically includes:
the communication between each edge computing node terminal and the management platform terminal is that, the communication data is transmitted and compared to obtain the distortion ratio of each edge computing node transmitting data at each time, and according to the distortion ratio, the number of pulses input at each time by a stepping motor installed at the power supply end of each edge computing node terminal is controlled, wherein the stepping motor comprises a sliding dial piece and a metal scribing sheet, the sliding dial piece is positioned at the head end of the metal scribing sheet, and the sliding dial piece can slide in the region corresponding to the metal scribing sheet and other non-metal regions under the driving of the rotation of the stepping motor, which can be specifically shown in fig. 2, when the number of input pulses reaches a predetermined number, the edge computing terminal and the corresponding stepping motor are powered off, and the process is as follows:
step S101, after each edge computing node terminal finishes data transmission to the management platform terminal, the management platform terminal sends the data back to the corresponding edge computing node terminal, and by using the following formula (1), the distortion ratio of the data transmitted by each edge computing node terminal at this time is obtained according to the comparison between the data sent by each edge computing node terminal to the management platform terminal and the data sent back by the management platform terminal,
in the formula (1), S (a) represents a distortion ratio of data transmitted by the a-th edge computing node terminal this time; f 16 (a) Representing the hexadecimal driving of the data sent by the a-th edge computing node terminal to the management platform terminal; f. of 16 (a) The hexadecimal form of the data sent back by the management platform terminal is received by the a-th edge computing node terminal;>>2 represents a right shift two bit operation; [] 10 Indicating that the data in parentheses is converted to decimal form;
step S102, using the following formula (2), according to the distortion ratio of each data transmission of each edge computing node terminal, judging the control weight of each data transmission of each edge computing node terminal,
in the above formula (2), G (a) represents a control weight of the data transmitted this time by the a-th edge computing node terminal; n represents the number of edge calculation node terminals which perform data transmission at the same time as the a-th edge calculation node terminal, and the a-th edge calculation node terminal is also counted, and if only the a-th edge calculation node terminal performs data transmission at the same time, n =1; sum { } denotes summing the hexadecimal data in parentheses bit by bit; | | represents the absolute value;
step S103, controlling the number of pulses input by the stepping motor installed at the power supply end of each edge calculation node terminal each time according to the control weight and distortion ratio of each edge calculation node terminal data transmission each time by using the following formula (3),
D(a)＝int[M(a)×G(a)×S(a)] (3)
in the formula (3), D (a) represents the number of pulses input this time by the stepping motor at the power supply end of the a-th edge computing node terminal; m (a) represents the number of pulses required for the stepping motor at the power supply end of the a-th edge computing node terminal to drive the sliding poke piece to rotate clockwise from the starting position of the metal scribing piece to the tail end position of the metal scribing piece; int [ ] indicates that the rounding operation is performed on the data in parentheses.
The beneficial effects of the above technical scheme are: by utilizing the formula (1), comparing the original data sent by each edge computing node terminal to the management platform terminal with the received transmission data to obtain the distortion ratio of the current transmission data of each edge computing node terminal, thereby knowing the data loss condition in the data transmission process and providing a theoretical basis for subsequent control; then, by using the formula (2), judging and obtaining the control weight of each edge computing node terminal for transmitting data each time according to the distortion ratio of each edge computing node terminal for transmitting data each time, so that the motor corresponding to the edge computing node terminal with more errors in data transmission is preferentially subjected to multi-pulse control, and the terminal with more errors is ensured to be powered off preferentially; and finally, controlling the number of pulses input by the stepping motor installed at the power supply end of each edge calculation node terminal every time by using the formula (3) according to the control weight and the distortion ratio of each edge calculation node terminal data transmission every time, wherein the mechanical power failure by using the motor is more reliable and safer than the logic power failure of a program, and the integral reliability of the system is ensured.
Preferably, in step S1, connecting each edge computing node terminal with at least one camera and at least one environment sensor respectively, and instructing the camera and the environment sensor to perform state initialization specifically includes:
each edge computing node terminal is respectively connected with at least one visible light camera and at least one thermal infrared camera;
connecting each edge computing node terminal with a vibration sensor and a gas sensor respectively;
and indicating the visible light camera, the thermal infrared camera, the vibration sensor and the gas sensor to remove the cache data generated in the historical detection process.
The beneficial effects of the above technical scheme are: in this way, the cameras and the environment sensors of different types are arranged, different types of environment images and environment data can be acquired for the internal region of the mine, multi-dimensional monitoring of the internal region of the mine is achieved, and therefore safety events existing in the internal region of the mine can be found in time in different aspects.
Preferably, in step S2, instructing the camera to capture an internal area of the mine, and obtaining an environmental image of the internal area of the mine specifically includes:
instructing the camera to perform periodic scanning shooting on the internal area of the mine to obtain an environmental panoramic image of the internal area of the mine; the shooting depth of field corresponding to the scanning shooting of the camera is not less than the distance between two adjacent position points in the mine.
The beneficial effects of the above technical scheme are: carry out this camera and scan the shooting depth of field that corresponds and establish into the distance that is not less than between two inside adjacent position points in mine so that the camera can shoot its environment image that corresponds the mine inner zone with covering comprehensively, effectively avoids taking a photograph the condition of omitting and takes place.
Preferably, in step S2, analyzing and processing the environment image of the mine internal area by the edge computing node terminal, and determining whether a mine safety accident event occurs in the mine internal area specifically includes:
acquiring a panoramic image of the environment of the internal area of the mine shot by the camera through the edge computing node terminal every time the camera finishes scanning and shooting;
extracting body action posture information and mine mountain structure information of mine operators from the panoramic image of the mine internal environment through the edge computing node terminal;
determining whether mine operators have a tumbling event or do illegal mining actions according to the body action posture information;
determining whether the mine mountain has mountain structure defects according to the mine mountain structure information;
if the mine operating personnel are determined to have a falling event or make an illegal mining action, or the mine mountain has mountain structure defects, determining that a mine safety accident event occurs in the internal area of the mine; otherwise, determining that the mine safety accident event does not occur in the internal region of the mine.
The beneficial effects of the above technical scheme are: by the aid of the mode, the panoramic image of the internal environment of the mine shot by the camera is identified by the edge computing node terminal, body action attitude information and mine mountain structure information of mine operators are obtained, the mine operators and the mine mountain structure are conveniently judged whether a mine safety accident event occurs or not, and the reliability of judging whether the mine safety accident event occurs or not is improved.
Preferably, in step S3, instructing the environment sensor to sample the mine internal area where the environment sensor is located to obtain the environment data of the mine internal area specifically includes:
and indicating the environment sensor to acquire the mountain vibration amplitude, the mountain vibration frequency and the gas concentration of the mine internal area.
The beneficial effects of the above technical scheme are: the mine internal region mountain vibration amplitude, mountain vibration frequency and mine internal region gas concentration are collected by the environment sensor, so that the mine mountain real-time vibration state and the gas concentration state can be accurately and quantitatively detected.
Preferably, in step S3, analyzing and processing the mine internal environment data by the edge computing node terminal, and determining whether an environmental safety hazard event exists in the mine internal area specifically includes:
comparing the mountain vibration amplitude with a preset vibration amplitude threshold value through the edge computing node terminal, comparing the mountain vibration frequency with a preset vibration frequency threshold value, and comparing the gas concentration with a preset concentration threshold value;
if the mountain vibration amplitude exceeds a preset vibration amplitude threshold value for comparison, or the mountain vibration frequency exceeds a preset vibration frequency threshold value for comparison, or the gas concentration exceeds a preset concentration threshold value, determining that an environmental potential safety hazard event exists in the internal area of the mine; otherwise, determining that no environmental safety hazard event exists in the internal region of the mine.
The beneficial effects of the above technical scheme are: through the mode, whether an environmental potential safety hazard event exists in the mine inner region is judged by taking the mountain vibration amplitude, the mountain vibration frequency and the gas concentration of the mine inner region as the reference, so that whether a mountain structure potential safety hazard and a mountain gas explosion potential safety hazard caused by vibration exist in the mine inner region is determined.
Preferably, in step S4, a notification message is sent to the operator terminals distributed in the mine by the edge computing node terminal according to the determination result in step S2 or step S3; sending the event related information to the management platform terminal through the edge computing node terminal specifically comprises the following steps:
if it is determined that a mine safety accident event occurs or an environmental potential safety hazard event exists in the mine internal area, sending a notification message to terminals held by operators distributed in the mine through an edge computing node terminal; the notification message comprises occurrence position information corresponding to a mine safety accident event or an event with environmental safety hidden danger;
sending event related information to a management platform terminal through an edge computing node terminal; the event related information comprises occurrence position information and occurrence time information corresponding to mine safety accident events or events with environmental safety hidden dangers.
The beneficial effects of the above technical scheme are: when it is determined that a mine safety accident event occurs or an environmental potential safety hazard event exists in the mine internal area, the edge computing node terminal sends a notification message to terminals held by operators distributed in the mine, so that the operators can timely connect the occurrence position of the safety accident event or the potential safety hazard event through the terminals held by the operators, and timely rescue or evacuation is performed. In addition, the edge computing node terminal sends the event related information to the management platform terminal, so that monitoring personnel can know the overall safety condition of the internal area of the mine through the management platform terminal.
As can be seen from the content of the above embodiment, in the edge-computing-based mine safety monitoring method, edge computing node terminals are respectively installed at a plurality of position points inside a mine, and each edge computing node terminal is respectively connected with a camera and an environment sensor, so as to obtain an environment image of an internal area of the mine and environment data of the internal area of the mine, and then whether a mine safety accident event occurs in the internal area of the mine and whether an environmental safety hidden danger event exists in the internal area of the mine are judged; then sending notification messages to operator terminals distributed in the mine through the edge computing node terminal, and sending event related information to the management platform terminal; according to the safety monitoring method, the edge computing node terminals are arranged at different positions in the mine, and independent safety monitoring is carried out on different area ranges in the mine by taking the edge computing node terminals as the reference, so that the partitioned monitoring of the interior of the mine is realized, and the detected environmental images and environmental data can be independently analyzed and processed, so that the real-time performance and the accuracy of the safety monitoring of mine operation are improved.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (9)
1. The mine safety monitoring method based on edge calculation is characterized by comprising the following steps of:
step S1, respectively installing edge computing node terminals at a plurality of position points in a mine; respectively connecting each edge computing node terminal with at least one camera and at least one environment sensor, and indicating the cameras and the environment sensors to carry out state initialization;
s2, instructing the camera to shoot the internal area of the mine to obtain an environment image of the internal area of the mine; analyzing and processing the environment image of the internal region of the mine through the edge computing node terminal, and judging whether the internal region of the mine has a mine safety accident event or not;
s3, indicating the environment sensor to sample the internal area of the mine to obtain the environmental data of the internal area of the mine; analyzing and processing the internal mine environment data through the edge computing node terminal, and judging whether an environment potential safety hazard event exists in the internal mine area;
step S4, according to the judgment result of the step S2 or the step S3, a notification message is sent to the operator terminals distributed in the mine through the edge computing node terminal; and sending the event related information to the management platform terminal through the edge computing node terminal.
2. The mine safety monitoring method based on edge calculation as recited in claim 1, wherein:
in step S1, installing edge computing node terminals at a plurality of location points in the mine respectively specifically includes:
the method comprises the following steps of (1) dividing a plurality of contour lines in a mine, and determining a plurality of uniformly spaced position points corresponding to each contour line in the mine; and respectively installing edge computing node terminals on each position point, wherein each edge computing node terminal is independently communicated and connected with the management platform terminal.
3. The mine safety monitoring method based on edge calculation as recited in claim 2, wherein:
in step S1, the independent communication connection between each edge computing node terminal and the management platform terminal specifically includes:
the communication between each edge computing node terminal and the management platform terminal is that communication data are transmitted and compared to obtain the distortion ratio of each edge computing node for transmitting data at each time, and according to the distortion ratio, the number of pulses input at each time by a stepping motor installed at the power supply end of each edge computing node terminal is controlled, wherein the stepping motor comprises a sliding dial piece and a metal scribing piece, the position of the sliding dial piece is at the head end of the metal scribing piece, the sliding dial piece can slide in the corresponding area of the metal scribing piece and other non-metal areas under the driving of the rotation of the stepping motor, when the number of the input pulses reaches a preset number, the edge computing terminal and the corresponding stepping motor are powered off, and the process is as follows:
step S101, after each edge computing node terminal finishes data transmission to the management platform terminal, the management platform terminal sends the data back to the corresponding edge computing node terminal, and by using the following formula (1), the data transmitted to the management platform terminal by each edge computing node terminal is compared with the data sent back by the management platform terminal to obtain the distortion ratio of the data transmitted by each edge computing node terminal at this time,
in the above formula (1), S (a) represents a distortion ratio of the current transmission data of the a-th edge computing node terminal; f 16 (a) Representing hexadecimal driving of data sent by the a-th edge computing node terminal to the management platform terminal; f. of 16 (a) The hexadecimal form of the data sent back by the management platform terminal is received by the a-th edge computing node terminal;>>2 represents a right shift two bit operation; [] 10 Indicating that the data in parentheses is converted to decimal form;
step S102, using the following formula (2), according to the distortion ratio of each data transmission of each edge computing node terminal, judging the control weight of each data transmission of each edge computing node terminal,
in the above formula (2), G (a) represents a control weight of the data transmitted this time by the a-th edge computing node terminal; n represents the number of edge calculation node terminals which perform data transmission at the same time as the a-th edge calculation node terminal, and the a-th edge calculation node terminal is also counted, and if only the a-th edge calculation node terminal performs data transmission at the same time, n =1; sum { } denotes summing the hexadecimal data in parentheses bit by bit; | | represents the absolute value;
step S103, controlling the number of pulses input by the stepping motor installed at the power supply end of each edge calculation node terminal each time according to the control weight and distortion ratio of each edge calculation node terminal data transmission each time by using the following formula (3),
D(a)＝int[M(a)×G(a)×S(a)] (3)
in the formula (3), D (a) represents the number of pulses input this time by the stepping motor at the power supply end of the a-th edge computing node terminal; m (a) represents the number of pulses required by the stepping motor at the power supply end of the a-th edge computing node terminal for driving the sliding plectrum to rotate clockwise from the initial position of the metal scribing to the tail end position of the metal scribing; int [ ] indicates that the rounding operation is performed on the data in parentheses.
4. The mine safety monitoring method based on edge calculation as recited in claim 2, wherein:
in step S1, respectively connecting each edge computing node terminal to at least one camera and at least one environmental sensor, and instructing the camera and the environmental sensor to perform state initialization specifically includes:
each edge computing node terminal is respectively connected with at least one visible light camera and at least one thermal infrared camera;
connecting each edge computing node terminal with a vibration sensor and a gas sensor respectively;
and indicating the visible light camera, the thermal infrared camera, the vibration sensor and the gas sensor to remove cache data generated in the historical detection process.
5. The mine safety monitoring method based on edge calculation as recited in claim 1, wherein:
in step S2, instructing the camera to shoot the internal area of the mine, and obtaining an environmental image of the internal area of the mine specifically includes:
the camera is instructed to carry out periodic scanning shooting on the internal area of the mine, so that an environmental panoramic image of the internal area of the mine is obtained; the shooting depth of field corresponding to the scanning shooting of the camera is not less than the distance between two adjacent position points in the mine.
6. The mine safety monitoring method based on edge calculation as recited in claim 5, wherein:
in the step S2, analyzing and processing the environment image of the mine internal area through the edge computing node terminal, and determining whether a mine safety accident event occurs in the mine internal area specifically includes:
acquiring a panoramic image of the environment of the internal area of the mine shot by the camera through the edge computing node terminal every time the camera finishes scanning and shooting for one time;
extracting body action posture information and mine mountain structure information of mine operators from the panoramic image of the mine internal environment through the edge computing node terminal;
determining whether mine operators have a tumbling event or do illegal mining actions according to the body action posture information;
determining whether the mine mountain has mountain structure defects or not according to the mine mountain structure information;
if the mine operation personnel are determined to have a tumbling event or make an illegal mining action, or the mine mountain has mountain structure defects, determining that the mine safety accident event occurs in the internal region of the mine;
otherwise, determining that the mine safety accident event does not occur in the internal region of the mine.
7. The mine safety monitoring method based on edge calculation as recited in claim 1, wherein:
in step S3, instructing the environment sensor to sample the internal area of the mine, and obtaining the environmental data of the internal area of the mine specifically includes:
and indicating the environment sensor to collect the mountain vibration amplitude, the mountain vibration frequency and the gas concentration of the mine internal area.
8. The edge-computing-based mine safety monitoring method of claim 7, wherein:
in the step S3, analyzing and processing the mine internal environment data through the edge computing node terminal, and determining whether an environmental potential safety hazard event exists in the mine internal region specifically includes:
comparing the mountain vibration amplitude with a preset vibration amplitude threshold value through the edge computing node terminal, comparing the mountain vibration frequency with a preset vibration frequency threshold value, and comparing the gas concentration with a preset concentration threshold value;
if the mountain vibration amplitude exceeds a preset vibration amplitude threshold value for comparison, or the mountain vibration frequency exceeds a preset vibration frequency threshold value for comparison, or the gas concentration exceeds a preset concentration threshold value, determining that an environmental potential safety hazard event exists in the internal region of the mine; otherwise, determining that no environmental safety hazard event exists in the internal region of the mine.
9. The mine safety monitoring method based on edge calculation as recited in claim 1, wherein:
in step S4, a notification message is sent to the operator terminals distributed in the mine through the edge computing node terminal according to the determination result in step S2 or step S3; sending the event related information to the management platform terminal through the edge computing node terminal specifically comprises the following steps:
if it is determined that a mine safety accident event occurs or an environmental potential safety hazard event exists in the mine internal area, sending a notification message to terminals held by operators distributed in the mine through an edge computing node terminal; the notification message comprises occurrence position information corresponding to a mine safety accident event or an event with environmental safety hidden danger;
sending event related information to a management platform terminal through an edge computing node terminal; the event related information comprises occurrence position information and occurrence time information corresponding to mine safety accident events or events with environmental safety hidden dangers.
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