CN115653688A - Rock burst monitoring and early warning system and method - Google Patents
Rock burst monitoring and early warning system and method Download PDFInfo
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- CN115653688A CN115653688A CN202211255638.0A CN202211255638A CN115653688A CN 115653688 A CN115653688 A CN 115653688A CN 202211255638 A CN202211255638 A CN 202211255638A CN 115653688 A CN115653688 A CN 115653688A
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Abstract
The invention relates to a rock burst monitoring and early warning system and a rock burst monitoring and early warning method, which comprise the following steps: an upper computer and a rock burst monitor; the rock burst monitor is used for: collecting and sending an infrared image and a visible light image of a rock mass region and a distance value between a rock burst monitor and the rock mass region to an upper computer; the upper computer is used for: the method comprises the steps of determining an infrared image containing a preset high-heat area in a rock mass area to be detected from the infrared image, comparing the infrared image with an infrared image at the last moment when a visible light image and a distance value meet preset conditions to obtain a rock burst risk level of the rock mass area, and generating and sending an early warning signal to a rock burst monitor based on the rock burst risk level to control the rock burst monitor to carry out early warning. According to the system, the rock burst monitoring is carried out by installing hardware equipment in the rock mass region, and the monitoring data is analyzed and processed through the upper computer software, so that the prevention and control cost is reduced, the rock burst risk in the rock mass region can be early warned in time, and the safety of production work is improved.
Description
Technical Field
The invention relates to the technical field of safety detection, in particular to a rock burst monitoring and early warning system and method.
Background
The rockburst is a dynamic destabilization geological disaster which has the phenomena of burst loosening, peeling, catapulting and even throwing because the hard and brittle rock mass redistributes the stress of the tunnel wall due to excavation unloading in the excavation process of underground engineering and the elastic energy stored in the rock mass is suddenly released under the condition of high ground stress. Because the occurrence of rock burst is instantaneous, sudden, violent and destructive, in the environment with narrow underground mining space, direct damage can be brought to personnel and equipment operated by a working face, the progress of the project is influenced, and even the whole project is destroyed and the mine earthquake is induced.
At present, the research on the prevention technology of the rock burst risk mainly lies in the acoustic field. Specifically, in the acoustic field, three directions are divided: microseismic techniques, acoustic emission techniques, and acoustic frequency detection techniques. Although the three methods can predict the rock burst risk to a certain extent, the three methods have a problem that the influence of environmental factors in an actual roadway is difficult to solve. Using microseismic technique as example: in a laboratory environment, the micro-seismic technology can well forecast rock burst, but in an actual roadway, the micro-seismic technology often generates false alarm, mainly because various interference factors are too complex in the actual environment, and the level of intelligent judgment is not achieved at present.
Therefore, it is desirable to provide a technical solution to solve the above technical problems.
Disclosure of Invention
In order to solve the technical problems, the invention provides a rock burst monitoring and early warning system and a rock burst monitoring and early warning method.
The invention discloses a rock burst monitoring and early warning system, which adopts the technical scheme as follows:
the method comprises the following steps: an upper computer and a rock burst monitor;
the rock burst monitor is used for: acquiring a current infrared image and a current visible light image of a rock mass region to be detected, acquiring a current distance value between the rock burst monitor and the rock mass region to be detected, and sending the current infrared image, the current visible light image and the current distance value to the upper computer;
the upper computer is used for: determining a target infrared image containing an original preset high-heat area in the rock mass area to be detected from the current infrared image, and comparing the target infrared image with an infrared image of the rock mass area to be detected at the last moment when the current visible light image meets a first preset condition and the current distance value meets a second preset condition to obtain the current rockburst risk level of the rock mass area to be detected;
the upper computer is also used for: and generating and sending a target early warning signal to the rock burst monitor based on the rock burst risk level so as to control the rock burst monitor to perform early warning.
The rock burst monitoring and early warning system has the beneficial effects that:
according to the system, the rock burst monitoring is carried out by installing hardware equipment in the rock mass area, and the monitoring data is analyzed and processed through the upper computer software, so that the rock burst risk in the rock mass area can be early warned in time while the prevention and control cost is reduced, and the safety of production work is improved.
On the basis of the scheme, the rock burst monitoring and early warning system can be further improved as follows.
Further, the rock burst monitor includes: the system comprises a thermal infrared imager, a visible light camera, a laser range finder and an integrated circuit board;
the thermal infrared imager is used for: collecting and sending the current infrared image to the integrated circuit board;
the visible light camera is used for: collecting and sending the current visible light image to the integrated circuit board;
the laser range finder is used for: collecting and sending the current distance value to the integrated circuit board;
the integrated circuit board is used for: and sending the current infrared image, the current visible light image and the current distance value to the upper computer.
Further, the rock burst monitor further comprises: an acousto-optic early warning device;
the acousto-optic early warning device is used for: and receiving the target early warning signal sent by the upper computer, and sending corresponding target early warning information according to the target early warning signal.
Further, the upper computer is specifically used for:
determining a current preset high-heat area in the target infrared image, and acquiring a first temperature value corresponding to the target infrared image and a second temperature value corresponding to an image of the rock mass area to be detected at the previous moment;
performing edge detection on the current preset high-heat area and the original preset high-heat area, and determining a current edge range corresponding to the current preset high-heat area and an original edge range corresponding to the original preset high-heat area;
when the temperature difference value between the first temperature value and the second temperature value is smaller than or equal to a first preset temperature value, and the edge change degree between the current edge range and the original edge range is smaller than or equal to a first edge change threshold value, determining that the current rock burst risk level of the rock mass area to be detected is rock burst risk-free;
when the temperature difference value between the first temperature value and the second temperature value is larger than a first preset temperature value, or the edge change degree between the current edge range and the original edge range is larger than a first edge change threshold value, determining the current rock burst risk level of the rock mass area to be detected as a first rock burst risk level;
when the temperature difference value between the first temperature value and the second temperature value is larger than a second preset temperature value, or the edge change degree between the current edge range and the original edge range is larger than a second edge change threshold value, determining that the current rock burst risk level of the rock mass area to be detected is a second rock burst risk level;
and when the temperature difference value between the first temperature value and the second temperature value is larger than a third preset temperature value, or the edge change degree between the current edge range and the original edge range is larger than a third edge change threshold value, determining the current rock burst risk grade of the rock mass area to be detected as a third rock burst risk grade.
Further, the target early warning signal includes: a first target early warning signal, a second target early warning signal and a third target early warning signal; the upper computer is specifically used for:
when the rock burst risk level is the first rock burst risk level, generating a first target early warning signal for controlling the acousto-optic early warning device to continuously flash at a first preset frequency for a first preset time;
when the rock burst risk level is the second rock burst risk level, generating a second target early warning signal for controlling the acousto-optic early warning device to continuously flash at a second preset frequency for a second preset time;
and when the rock burst risk level is the third rock burst risk level, generating a third target early warning signal which controls the acousto-optic early warning device to continuously flash for a third preset time at a third preset frequency and send out continuous warning sound.
Further, the first preset condition is as follows: the current visible light image only comprises a rock mass region to be detected; the second preset condition is as follows: and the distance difference value between the current distance value and the original distance value is smaller than or equal to a preset distance value.
Further, still include: a monitoring center;
the upper computer is also used for: and sending the target early warning signal to the monitoring center so as to monitor the rock mass region to be detected through the monitoring center.
Further, the method also comprises the following steps: a black body furnace; and the black body furnace is used for carrying out temperature drift correction on the thermal infrared imager.
Further, the integrated circuit board is further configured to: storing the current infrared image, the current visible light image and the current distance value;
the upper computer is also used for: and storing the current infrared image, the current visible light image and the current distance value.
The invention relates to a rock burst monitoring and early warning method, which adopts the technical scheme as follows:
the method comprises the steps that a rock burst monitor collects a current infrared image and a current visible light image of a rock mass region to be detected, a current distance value between the rock burst monitor and the rock mass region to be detected is obtained, and the current infrared image, the current visible light image and the current distance value are sent to an upper computer;
the upper computer determines a target infrared image comprising an original preset high-heat area in the rock mass area to be detected from the current infrared image, and when the current visible light image meets a first preset condition and the current distance value meets a second preset condition, the target infrared image is compared with the infrared image of the rock mass area to be detected at the last moment to obtain the current rockburst risk level of the rock mass area to be detected;
and the upper computer generates and sends a target early warning signal to the rock burst monitor based on the rock burst risk level so as to control the rock burst monitor to carry out early warning.
The rock burst monitoring and early warning method has the beneficial effects that:
according to the method, the rock burst monitoring is carried out by installing hardware equipment in the rock mass area, and the monitoring data is analyzed and processed through the upper computer software, so that the rock burst risk of the rock mass area can be early warned in time while the prevention and control cost is reduced, and the safety of production work is improved.
Drawings
Fig. 1 is a first structural schematic diagram of a rock burst monitoring and early warning system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a rock burst monitor in the rock burst monitoring and early warning system according to the embodiment of the invention;
FIG. 3 is a schematic diagram of a second structure of a rock burst monitoring and early warning system according to an embodiment of the present invention;
fig. 4 is a schematic flow diagram of a rock burst monitoring and early warning method according to an embodiment of the present invention.
Detailed Description
As shown in fig. 1, a rock burst monitoring and early warning system 100 according to an embodiment of the present invention includes: an upper computer 110 and a rock burst monitor 120.
The upper computer 110 is located at a server end, and can receive collected rock burst monitoring data, analyze the data, send out an early warning instruction and the like.
The rock burst monitor 120 is configured to: the method comprises the steps of collecting a current infrared image and a current visible light image of a rock mass region to be detected, monitoring a current distance value between the rock burst monitor 120 and the rock mass region to be detected, and sending the current infrared image, the current visible light image and the current distance value to the upper computer 110.
Wherein, the rock mass region that awaits measuring is: the rock mass region that can be monitored by the rock burst monitor 120 is often the rock mass region under the mine. The current infrared image is: and (4) infrared images corresponding to the rock mass area to be detected at the current moment. The current visible light image is: and the visible light image corresponding to the rock mass area to be measured at the current moment. The current distance value is: the distance value between the rock burst monitor 120 and the rock mass region to be measured at the current moment.
It should be noted that, in this embodiment, the rock burst monitor 120 packages the acquired data through a TCP/IP protocol, converts the data to be sent to the upper computer 110 for subsequent analysis processing, and may also transmit the data through other manners, which is not limited herein.
The upper computer 110 is used for: and determining a target infrared image comprising an original preset high-heat area in the rock mass area to be detected from the current infrared image, and comparing the target infrared image with the infrared image of the rock mass area to be detected at the last moment when the current visible light image meets a first preset condition and the current distance value meets a second preset condition to obtain the current rockburst risk level of the rock mass area to be detected.
Wherein, the original preset high heat area is: the high heat area or the potentially dangerous area is selected in the area to be measured in advance, and the area may be one or more, or may be a continuous area or a discontinuous area, which is not limited herein.
Wherein, the target infrared image is: the current infrared image only contains the infrared image of the original preset high-heat area part. The first preset condition is as follows: the current visible light image only contains a rock mass region to be detected, namely, people, vehicles or other artificial heat sources do not exist in the visible light image. The second preset condition is as follows: the distance difference value between the current distance value and the original distance value is smaller than or equal to a preset distance value, and the original distance value refers to the distance value collected at the last moment; the preset distance value is 10% of the variation amplitude between the current distance value and the original distance value, and can also be set according to requirements; for example, the original distance value is 1m, the current distance value is 1.2m, and at this time, the preset distance value is 0.1m, but the actual variation amplitude is 20% (0.2 m); since the variation amplitude exceeds the preset distance value, the second preset condition is not satisfied in this case.
And comparing the current rock burst risk level with the infrared image of the rock mass region to be detected at the last moment according to the standard infrared image, and determining according to the change degree of the image.
It should be noted that, in this embodiment, the rock burst monitor 120 performs acquisition and transmission once every preset time, and may also perform acquisition in real time and acquire images at certain frame intervals for transmission, where no limitation is set herein.
The upper computer 110 is further configured to: and generating and sending a target early warning signal to the rock burst monitor 120 based on the rock burst risk level so as to control the rock burst monitor 120 to perform early warning.
Wherein, each rock burst risk level corresponds to a target early warning signal.
It should be noted that the rock burst monitor 120 sends out early warning information according to the received target early warning signal.
Preferably, the rock burst monitor 120 includes: a thermal infrared imager 121, a visible light camera 122, a laser range finder 123 and an integrated circuit board 124.
The thermal infrared imager 121 is configured to: collecting and sending the current infrared image to the integrated circuit board 124;
the visible light camera 122 is configured to: collecting and sending the current visible light image to the integrated circuit board 124;
the laser rangefinder 123 is configured to: collecting and sending the current distance value to the integrated circuit board 124;
the integrated circuit board 124 is configured to: and sending the current infrared image, the current visible light image and the current distance value to the upper computer 110.
The thermal infrared imager 121, the visible light camera 122 and the laser range finder 123 are all common devices in the market, and the specific models are not limited as long as the technical scheme of the embodiment can be implemented. The integrated circuit board 124 is equivalent to a chip, and mainly functions as: and is responsible for data interface conversion, data transmission and storage, controlling the transmission device 127, controlling the operation and power supply of each component, and the like. The rock burst monitor 120 integrates various components and devices, and the specific installation position and connection relationship are shown in fig. 2.
The transmission device 127 is used for adjusting the angle of each device, and the angle of each device in the vertical and horizontal directions can be adjusted through signals sent by the upper computer.
Preferably, the rock burst monitor 120 further comprises: and an acousto-optic early warning device 125.
The acousto-optic early warning device 125 is used for: and receiving the target early warning signal sent by the upper computer 110, and sending corresponding target early warning information according to the target early warning signal.
In this embodiment, the sound and light warning device 125, which is commonly available on the market, can flash and make a sound according to the control signal (target warning signal). The target early warning information is as follows: color, frequency and duration of flashing, type, frequency, duration of sound production.
Preferably, the upper computer 110 is specifically configured to:
and determining a current preset high-heat area in the target infrared image, and acquiring a first temperature value corresponding to the target infrared image and a second temperature value corresponding to the infrared image of the rock mass area to be detected at the last moment.
Wherein, the current preset high heat area is as follows: and determining a region according to a high-heat region or a high-risk region in the current infrared image of the rock mass region to be detected.
The first temperature value is a numerical value corresponding to the temperature presented in the target infrared image; the second temperature value is a numerical value corresponding to the temperature presented in the infrared image of the rock mass area to be measured at the last moment.
And performing edge detection on the current preset high-heat area and the original preset high-heat area, and determining a current edge range corresponding to the current preset high-heat area and an original edge range corresponding to the original preset high-heat area.
It should be noted that, the edge of the high-heat area can accurately detect the range and color of the edge pixel by the image edge detection method, so as to obtain the corresponding edge ranges respectively; and then determining the edge change degree of the frame by comparing the previous frame with the next frame. The image edge detection method is the prior art and is not described herein in detail.
And when the temperature difference value between the first temperature value and the second temperature value is smaller than or equal to a first preset temperature value, and the edge change degree between the current edge range and the original edge range is smaller than or equal to a first edge change threshold value, determining that the current rock burst risk level of the rock mass area to be detected is rock burst risk-free.
Wherein, the first preset temperature value is: 3% of the second temperature value; the default is set to 3%, and the adjustment can be performed according to different environments of the rock mass area, and no limitation is set herein. The first edge change threshold is: 5% of the original edge range; the default is set to 5%, and the adjustment can be performed according to different environments of the rock mass area, and no limitation is provided here. The non-rockburst risk means that: and the rock mass area to be detected has no rock burst risk at the current moment.
And when the temperature difference value between the first temperature value and the second temperature value is greater than the first preset temperature value, or the edge change degree between the current edge range and the original edge range is greater than the first edge change threshold value, determining that the current rock burst risk level of the rock mass area to be detected is a first rock burst risk level.
Wherein the first rockburst risk level is: the rock mass area to be measured has less rock burst risk at present.
It should be noted that, if the edge change degree between the current edge range and the original edge range is greater than the first edge change threshold and exceeds the first edge change threshold for 5S continuously, the current rockburst risk level of the rock mass region to be measured is determined as the first rockburst risk level, so as to avoid misjudgment caused by the temperature drift phenomenon.
And when the temperature difference value between the first temperature value and the second temperature value is greater than a second preset temperature value, or the edge change degree between the current edge range and the original edge range is greater than a second edge change threshold value, determining that the current rock burst risk level of the rock mass area to be detected is a second rock burst risk level.
Wherein the second preset temperature value is: 5% of the second temperature value; the default is set to 5%, and the adjustment can be performed according to different environments of the rock mass area, and no limitation is set herein. The second edge variation threshold is: 10% of the original edge range; the default is set to 10%, and the adjustment can be performed according to different environments of the rock mass region, and no limitation is provided here. The second rockburst risk level is: the rock mass area to be measured has medium rock burst risk at the current moment.
It should be noted that, if the edge change degree between the current edge range and the original edge range is greater than the second edge change threshold and exceeds the second edge change threshold for 5S continuously, the current rockburst risk level of the rock mass region to be measured is determined as the second rockburst risk level, so as to avoid misjudgment caused by the temperature drift phenomenon.
And when the temperature difference value between the first temperature value and the second temperature value is greater than a third preset temperature value, or the edge change degree between the current edge range and the original edge range is greater than a third edge change threshold value, determining that the current rock burst risk level of the rock mass area to be detected is a third rock burst risk level.
Wherein the third preset temperature value is: 10% of the second temperature value; the default is set to 10%, and the adjustment can be performed according to different environments of the rock mass region, and no limitation is provided here. The third edge variation threshold is: 15% of the original edge range; the default is set to 15%, and the adjustment can be performed according to the environment of the rock mass region, and no limitation is provided here. The third rockburst risk level is: the rock mass area to be measured has great rock burst risk at the present moment.
It should be noted that, if the edge change degree between the current edge range and the original edge range is greater than the third edge change threshold and exceeds the third edge change threshold for 5S continuously, the current rockburst risk level of the rock mass region to be measured is determined as the third rockburst risk level, so as to avoid misjudgment caused by the temperature drift phenomenon.
Preferably, the target early warning signal includes: a first target early warning signal, a second target early warning signal and a third target early warning signal.
The first target early warning signal corresponds to a first rock burst risk level; the second target early warning signal corresponds to a second rock burst risk level, and the third target early warning signal corresponds to a third target early warning signal.
The upper computer 110 is specifically configured to:
and when the rock burst risk level is the first rock burst risk level, generating the first target early warning signal for controlling the acousto-optic early warning device 125 to continuously flash at a first preset frequency for a first preset time.
The first preset frequency is 10S, and the first preset duration is 2min.
It should be noted that, when the acousto-optic early warning device 125 receives the first target early warning signal, the acousto-optic early warning device 125 emits blue light every 10S for 2min; the color, frequency and duration of the flash can be adjusted according to the requirement, and are not limited herein.
And when the rock burst risk level is the second rock burst risk level, generating a second target early warning signal for controlling the acousto-optic early warning device 125 to continuously flash at a second preset frequency for a second preset time.
Wherein the second preset frequency is 5S, and the second preset duration is 5min.
It should be noted that, when the acousto-optic early warning device 125 receives the second target early warning signal, the acousto-optic early warning device 125 emits red and blue alternating light every 5S, and the duration lasts for 5min; the flashing color, frequency and duration can be adjusted according to the requirement, and are not limited herein.
And when the rock burst risk level is the third rock burst risk level, generating a third target early warning signal for controlling the acousto-optic early warning device 125 to continuously flash at a third preset frequency for a third preset time and to send out a continuous warning sound.
The third preset frequency is 2S, and the third preset duration is a dynamic value and is determined according to the received closing early warning signal.
It should be noted that, when the acousto-optic early warning device 125 receives the third target early warning signal, the acousto-optic early warning device 125 emits red and blue alternating light every 2S, and continues until receiving the close early warning signal; the flashing color and frequency can be adjusted according to the requirement, and the limitation is not set herein.
Preferably, the method further comprises the following steps: a monitoring center 160;
the upper computer 110 is further configured to: and sending the target early warning signal to the monitoring center 160 so as to monitor the rock mass region to be detected through the monitoring center 160.
It should be noted that the monitoring center 160 can monitor the acquired data in real time, and can send a signal for stopping the pre-warning to the upper computer 110, so that the upper computer 110 controls to close the pre-warning of the rock mass region to be detected according to the signal.
Preferably, the method further comprises the following steps: a black body furnace 126; the black body furnace 126 is used for temperature drift correction of the thermal infrared imager 121.
It should be noted that the black body furnace 126 is a black body radiation source, and its main function is to provide thermal radiation energy at a stable temperature, usually corresponding to 40 ℃, to perform temperature drift correction on the thermal infrared imager 121, so as to ensure the accuracy of temperature measurement of the thermal infrared imager 121. When the temperature drift correction device is used, the constant temperature body of the black body furnace 126 is contained in the field of view of the thermal infrared imager 121, and the coordinate and the temperature of the constant temperature body are set on the thermal infrared imager, so that the temperature drift can be corrected in real time.
In this embodiment, the blackbody furnace 126 is a heat pipe type blackbody furnace, and the installation position of the blackbody furnace is required to be very stable, and the blackbody furnace cannot be shaken, shielded, and the like. Furthermore, the black body furnace 126 must be able to be captured by the thermal infrared imager 121, i.e., the black body furnace 126 must be included in the pixels of the infrared image.
Preferably, the integrated circuit board 124 is further configured to: and storing the current infrared image, the current visible light image and the current distance value.
The upper computer 110 is further configured to: and storing the current infrared image, the current visible light image and the current distance value.
It should be noted that the integrated circuit board 124 has a certain storage capability, and data can be stored for a period of time after the network is interrupted, and can be retransmitted after the network is recovered. The software of the upper computer 110 is provided with a corresponding database and can store 30 days history data (including history data storage, covering is carried out if the history data is exceeded, only the received data is covered, and the analysis data is not covered).
In addition, in this embodiment, the upper computer 110 can issue an instruction to control the rock burst monitor 120 to axially rotate by a certain angle (at most, 45 degrees plus or minus); the upper computer 110 has a user login mode selection, and an ordinary user can only browse a currently set monitoring picture. And the user with the foreground management authority opens the functions of viewing historical data, viewing analysis results, connecting duration and the like. And the user with the background management authority opens the functions of adjusting the rotation of the rock burst monitor 120, adjusting the early warning level, configuring parameters and the like.
As shown in fig. 3, the rock burst monitoring and early warning system of the present invention further includes: a first fiber optic transceiver 130, a second fiber optic transceiver 140, and a switch 150. The rock burst monitor 120 and the upper computer 110 are connected with the switch sequentially through the first optical fiber transceiver, the second optical fiber transceiver and the switch, and therefore data transmission is achieved.
Specifically, the rock burst monitor 120 is connected to the first optical fiber transceiver through a network cable, the first optical fiber transceiver is connected to the second optical fiber transceiver through an optical fiber, and the second optical fiber transceiver is connected to the switch through a network cable.
The technical scheme of this embodiment carries out the rock burst monitoring through installing hardware equipment in the regional rock mass to carry out analysis processes to monitored data through host computer software, when reducing prevention and control cost, can in time early warning the rock burst risk in the regional rock mass, improved the security of production work.
As shown in fig. 4, the rock burst monitoring and early warning method of the embodiment of the invention includes the following steps:
s1, collecting a current infrared image and a current visible light image of a rock mass region to be detected by a rock burst monitor 120, sending a current distance value between the rock burst monitor 120 and the rock mass region to be detected to an upper computer 110 by the current infrared image, the current visible light image and the current distance value;
s2, the upper computer 110 determines a target infrared image containing an original preset high-heat area in the rock mass area to be detected from the current infrared image, and when the current visible light image meets a first preset condition and the current distance value meets a second preset condition, the target infrared image is compared with the infrared image of the rock mass area to be detected at the last moment to obtain the current rockburst risk level of the rock mass area to be detected;
and S3, the upper computer 110 generates and sends a target early warning signal to the rock burst monitor 120 based on the rock burst risk grade so as to control the rock burst monitor 120 to perform early warning.
The technical scheme of this embodiment carries out the rock burst monitoring through installing hardware equipment in the regional rock mass to carry out analysis processes to monitored data through host computer software, when reducing prevention and control cost, can in time early warning the rock burst risk in the regional rock mass, improved the security of production work.
For the above parameters and steps in the rock burst monitoring and early warning method according to this embodiment, reference may be made to the above parameters and modules in the embodiment of the rock burst monitoring and early warning system 100, which are not described herein again.
The algorithms or displays presented herein are not inherently related to any particular computer, virtual machine, or other apparatus. In addition, embodiments of the present invention are not directed to any particular programming language.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. Similarly, in the above description of example embodiments of the invention, various features of the embodiments of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. Where the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names. The steps in the above embodiments should not be construed as limited to the order of execution unless otherwise specified.
Claims (10)
1. A rock burst monitoring and early warning system is characterized by comprising: an upper computer and a rock burst monitor;
the rock burst monitor is used for: acquiring a current infrared image and a current visible light image of a rock mass region to be detected, acquiring a current distance value between the rock burst monitor and the rock mass region to be detected, and sending the current infrared image, the current visible light image and the current distance value to the upper computer;
the upper computer is used for: determining a target infrared image containing an original preset high-heat area in the rock mass area to be detected from the current infrared image, and comparing the target infrared image with an infrared image of the rock mass area to be detected at the last moment when the current visible light image meets a first preset condition and the current distance value meets a second preset condition to obtain the current rockburst risk level of the rock mass area to be detected;
the upper computer is also used for: and generating and sending a target early warning signal to the rock burst monitor based on the rock burst risk level so as to control the rock burst monitor to carry out early warning.
2. The rock burst monitoring and early warning system of claim 1, wherein the rock burst monitor comprises: the system comprises a thermal infrared imager, a visible light camera, a laser range finder and an integrated circuit board;
the thermal infrared imager is used for: collecting and sending the current infrared image to the integrated circuit board;
the visible light camera is used for: collecting and sending the current visible light image to the integrated circuit board;
the laser range finder is used for: collecting and sending the current distance value to the integrated circuit board;
the integrated circuit board is used for: and sending the current infrared image, the current visible light image and the current distance value to the upper computer.
3. The rock burst monitoring and early warning system of claim 2, wherein the rock burst monitor further comprises: an acousto-optic early warning device;
the acousto-optic early warning device is used for: and receiving the target early warning signal sent by the upper computer, and sending corresponding target early warning information according to the target early warning signal.
4. The rock burst monitoring and early warning system of claim 3, wherein the upper computer is specifically configured to:
determining a current preset high-temperature area in the target infrared image, and acquiring a first temperature value corresponding to the target infrared image and a second temperature value corresponding to the infrared image of the rock mass area to be detected at the last moment;
performing edge detection on the current preset high-heat area and the original preset high-heat area, and determining a current edge range corresponding to the current preset high-heat area and an original edge range corresponding to the original preset high-heat area;
when the temperature difference value between the first temperature value and the second temperature value is smaller than or equal to a first preset temperature value, and the edge change degree between the current edge range and the original edge range is smaller than or equal to a first edge change threshold value, determining that the current rock burst risk level of the rock mass area to be detected is rock burst risk-free;
when the temperature difference value between the first temperature value and the second temperature value is larger than a first preset temperature value, or the edge change degree between the current edge range and the original edge range is larger than a first edge change threshold value, determining the current rock burst risk level of the rock mass area to be detected as a first rock burst risk level;
when the temperature difference value between the first temperature value and the second temperature value is larger than a second preset temperature value, or the edge change degree between the current edge range and the original edge range is larger than a second edge change threshold value, determining that the current rock burst risk level of the rock mass area to be detected is a second rock burst risk level;
and when the temperature difference value between the first temperature value and the second temperature value is greater than a third preset temperature value, or the edge change degree between the current edge range and the original edge range is greater than a third edge change threshold value, determining that the current rock burst risk level of the rock mass area to be detected is a third rock burst risk level.
5. A rock burst monitoring and forewarning system as claimed in claim 4, wherein the target forewarning signal comprises: a first target early warning signal, a second target early warning signal and a third target early warning signal; the upper computer is specifically used for:
when the rock burst risk level is the first rock burst risk level, generating a first target early warning signal for controlling the acousto-optic early warning device to continuously flash at a first preset frequency for a first preset time;
when the rock burst risk level is the second rock burst risk level, generating a second target early warning signal for controlling the acousto-optic early warning device to continuously flash at a second preset frequency for a second preset time;
and when the rock burst risk level is the third rock burst risk level, generating a third target early warning signal which controls the acousto-optic early warning device to continuously flash for a third preset time at a third preset frequency and send out continuous warning sound.
6. The rock burst monitoring and early warning system according to claim 1, wherein the first preset condition is that: the current visible light image only comprises a rock mass area to be detected; the second preset condition is as follows: and the distance difference value between the current distance value and the original distance value is smaller than or equal to a preset distance value.
7. The rock burst monitoring and early warning system of claim 1, further comprising: a monitoring center;
the upper computer is also used for: and sending the target early warning signal to the monitoring center so as to monitor the rock mass region to be detected through the monitoring center.
8. The rock burst monitoring and early warning system of claim 2, further comprising: a black body furnace; and the black body furnace is used for carrying out temperature drift correction on the thermal infrared imager.
9. The rock burst monitoring and early warning system of claim 2, wherein the integrated circuit board is further configured to: storing the current infrared image, the current visible light image and the current distance value;
the upper computer is also used for: and storing the current infrared image, the current visible light image and the current distance value.
10. A rock burst monitoring and early warning method is characterized by comprising the following steps:
the method comprises the steps that a rock explosion monitor acquires a current infrared image and a current visible light image of a rock mass region to be detected, a current distance value between the rock explosion monitor and the rock mass region to be detected is obtained, and the current infrared image, the current visible light image and the current distance value are sent to an upper computer;
the upper computer determines a target infrared image comprising an original preset high-heat area in the rock mass area to be detected from the current infrared image, and when the current visible light image meets a first preset condition and the current distance value meets a second preset condition, the target infrared image is compared with the infrared image of the rock mass area to be detected at the last moment to obtain the current rockburst risk level of the rock mass area to be detected;
and the upper computer generates and sends a target early warning signal to the rock burst monitor based on the rock burst risk level so as to control the rock burst monitor to carry out early warning.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116740329A (en) * | 2023-06-20 | 2023-09-12 | 武汉工程大学 | Deep roadway rock burst prevention and control method based on infrared monitoring technology |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116740329A (en) * | 2023-06-20 | 2023-09-12 | 武汉工程大学 | Deep roadway rock burst prevention and control method based on infrared monitoring technology |
| CN116740329B (en) * | 2023-06-20 | 2024-03-12 | 武汉工程大学 | Deep roadway rock burst prevention and control method based on infrared monitoring technology |
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