CN110365944B - Monitoring method, device, equipment and storage medium for empty top operation - Google Patents
Monitoring method, device, equipment and storage medium for empty top operation Download PDFInfo
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- CN110365944B CN110365944B CN201910657417.8A CN201910657417A CN110365944B CN 110365944 B CN110365944 B CN 110365944B CN 201910657417 A CN201910657417 A CN 201910657417A CN 110365944 B CN110365944 B CN 110365944B
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
Abstract
The embodiment of the invention relates to the field of mining, in particular to a monitoring method, a monitoring device, monitoring equipment and a storage medium for open-top operation. The embodiment of the invention discloses a monitoring method for empty roof operation, which comprises the following steps: acquiring a current image frame in a mine; determining a region of empty tops in the current image frame; judging whether the empty roof area has anchor net supporting action or not; if the anchor net supporting action is determined, whether temporary supporting equipment exists is judged, and if the anchor net supporting action is determined and no temporary supporting equipment exists, alarm information is sent out. According to the monitoring method, the empty top area in the image is determined to have the anchor net supporting action through judgment, whether the anchor net supporting action is qualified or not is judged, and if the anchor net supporting action is not qualified, alarm information is sent out, so that the monitoring effect is improved.
Description
Technical Field
The embodiment of the invention relates to the field of mining, in particular to a monitoring method, a monitoring device, monitoring equipment and a storage medium for open-top operation.
Background
The empty roof operation refers to the operation of an operator under the condition that a roadway top plate does not adopt any support form after the underground coal mine tunneling working face is excavated. After the underground coal mine excavation working face is excavated, the original rock stress of a coal rock body is destroyed, and surrounding rocks of a roadway are deformed, destroyed and even collapsed due to the redistribution of the stress, so that people are easy to suffer from injury accidents such as roadway caving and roof collapse if people work under a hollow top without any support. In the prior art, a safety worker is used for special monitoring, the safety worker has the phenomenon that the safety worker cannot timely and objectively supervise the overhead operation and is easy to have an accident because the safety worker has the non-full-duty behaviors such as off-duty and sleeping or the working personnel is briy and the safety worker turns on green for the overhead operation behavior.
Disclosure of Invention
The embodiment of the invention aims to provide a monitoring method, a monitoring device, equipment and a storage medium for overhead operation, which are used for solving the problem of poor monitoring effect caused by manual monitoring in the prior art.
In order to achieve the above object, the embodiments of the present invention mainly provide the following technical solutions:
in a first aspect, an embodiment of the present invention provides a method for monitoring an empty roof operation, where the method includes:
acquiring a current image frame in a mine;
determining a region of empty tops in the current image frame;
judging whether the empty roof area has anchor net supporting action or not;
if the anchor net supporting action is determined, judging whether temporary supporting equipment exists or not, and if the anchor net supporting action is determined and the temporary supporting equipment does not exist, sending alarm information.
In one possible embodiment, the method further comprises:
if the bolting action is determined to be absent, judging whether a temporary bracing action exists;
if no temporary support action exists, recording the time point of the current frame;
judging whether temporary support actions exist in a plurality of image frames within a preset time period, and if no temporary support actions exist, giving an alarm at a preset time point;
the predetermined time point is a time point of the image frame + a predetermined period of time.
In one possible embodiment, the method further comprises:
if the temporary support action is determined, determining the number of temporary support devices in the current image frame;
judging whether the number of temporary support equipment in the image frame is less than a preset threshold value or not;
if the number of the temporary support equipment is smaller than a preset threshold value, recording the time point of the current frame;
acquiring a first image frame of a preset time point after the time point of the current image frame;
and judging whether the number of the temporary support equipment in the first image frame is less than a preset threshold value or not, and if so, giving an alarm.
In one possible embodiment, the method further comprises: if the anchor net supporting action is determined, judging whether the anchor net supporting action is qualified; if not, alarm information is sent out.
In one possible implementation, determining the empty top region in the current image frame includes:
determining a preset straight line mark in the current image frame; wherein the straight line mark is formed by artificial spray painting at the edge of the ready-made anchor net support;
determining a coal wall in the current image frame;
and determining the closed space formed by the coal wall and the linear mark as a hollow space.
In a second aspect, an embodiment of the present invention further provides a monitoring device for overhead operation, where the monitoring device includes:
the acquisition module is used for acquiring a current image frame in a mine;
a determining module for determining a region of empty space in the current image frame;
the judging module is used for judging whether the empty top area has anchor net supporting action; if the anchor net supporting action is determined, judging whether temporary supporting equipment exists or not;
(ii) a And the alarm module is used for determining that the anchor net support action exists and no temporary support equipment sends alarm information by the judgment module.
Further, the judging module is also used for judging whether a temporary supporting action exists or not if the bolting action without the anchor net is determined;
if no temporary support action exists, recording the time point of the current frame;
judging whether temporary support action exists in a plurality of image frames within a preset time period;
the alarm module is used for giving an alarm at a preset time point when the judgment module determines that no temporary support action exists within a preset time period;
the predetermined time point is a time point of the image frame + a predetermined period of time.
Further, the judging module is further configured to determine the number of temporary support devices in the current image frame if it is determined that a temporary support action exists;
judging whether the number of temporary support equipment in the image frame is less than a preset threshold value or not;
if the number of the temporary support equipment is smaller than a preset threshold value, recording the time point of the current frame;
acquiring a first image frame of a preset time point after the time point of the current image frame;
judging whether the number of temporary support equipment in the first image frame is smaller than a preset threshold value or not; the alarm module is further used for sending alarm information if the judgment module determines that the number of the temporary support equipment is smaller than a preset threshold value.
Further, the judging module is also used for judging whether the anchor net supporting action is qualified or not if the anchor net supporting action is determined;
the alarm module is also used for sending alarm information if the judgment module determines that the anchor net supporting action is unqualified.
In a third aspect, an embodiment of the present invention further provides a monitoring device for overhead operation, where the monitoring device includes: at least one processor and at least one memory;
the memory is to store one or more program instructions;
the processor is configured to execute one or more program instructions to perform the method of any one of the above.
In a fourth aspect, embodiments of the present invention also provide a computer-readable storage medium having one or more program instructions embodied therein, the one or more program instructions being for execution by a drive test unit to perform the method according to any one of the above.
The technical scheme provided by the embodiment of the invention at least has the following advantages:
according to the method for monitoring the empty roof operation, provided by the embodiment of the invention, the alarm information is sent out to avoid the empty roof operation when the anchor net supporting action is determined and no temporary supporting equipment is provided. The manual monitoring is changed into machine monitoring, and the monitoring effect is improved.
Drawings
FIG. 1A is a schematic illustration of an embodiment of the present invention providing an empty roof area without a support;
fig. 1B is a schematic view of a supporting device installed in a space area according to an embodiment of the present invention;
fig. 2 is a flowchart of a monitoring method for overhead operation according to an embodiment of the present invention;
fig. 3 is a flowchart of determining whether a temporary support is in compliance according to an embodiment of the present invention;
fig. 4 is another monitoring method for the operation of the empty roof according to the embodiment of the present invention;
fig. 5 is a schematic structural diagram of a monitoring device for overhead operation according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a monitoring device for overhead operation according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
In the following description, for purposes of explanation and not limitation, specific details are set forth such as particular system structures, interfaces, techniques, etc. in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
In the mining process, firstly, a driving face needs to be installed and supported, and refer to a schematic diagram of an empty top area without the installation and support shown in fig. 1A; wherein 101 is a tunneling working face, and 102 is a hollow area which is a working area of workers; 103 is an anchor net supporting area which is an area already protected; if the temporary support work is carried out, referring to the schematic diagram of the support equipment installed in the empty top area shown in fig. 1B, a plurality of cross beams 104 are installed in the empty top area 102, and the cross beams 104 play a role of temporary support.
The operation specification stipulates that mining work can be carried out only after the empty roof area is supported; and the construction team often does not support the empty top area for the reasons of reaching the construction period, pursuing the progress and the like. If not, the accident probability of collapse and roof fall is improved. In the prior art, the safety personnel supervise the operation, if the safety personnel confirm to carry out the empty top support after the inspection, workers can only carry out mining operation, and if the safety personnel confirm not to carry out the empty top support after the inspection, the workers cannot carry out the empty top support operation. Human supervision often has a number of drawbacks, the cost of human labor is high, and if the security officer is bribed, it does not have the supervision effect.
Based on this, the present application proposes a monitoring method for an empty top job, referring to a flow chart of the monitoring method for an empty top job shown in fig. 2, the method includes:
step S201, acquiring a current image frame in a mine;
the mining excavation face supporting device comprises a heading face, a roof support area, a camera, a supporting plate and a supporting plate, wherein the camera can be installed in a mine pit, the camera is installed on the roof support plate in the bolting area of the heading. The monitoring signal can be transmitted to a large monitoring screen of a coal mine dispatching room. The method comprises the steps of monitoring a region to be supported of a tunneling working face in real time through a camera, carrying out real-time analysis on a monitored video through a trained model, and collecting one frame of image every N frames, wherein N is a positive integer larger than one. And (4) taking each picture by each camera for identification.
Step S202, determining a vacant top area in the current image frame;
wherein, this step specifically includes:
step S2021, determining a preset straight line marker in the current image frame; wherein a target detection algorithm may be used to determine the straight line markers in the current image frame. The straight line mark is formed by manual spray painting at the edge of the anchor net support; the straight line mark can be a white line, the white line is a side rod spray painting which is manually supported on the anchor net, and besides the white line, the top plate and the foremost row of two sides of the top plate can be identified to support the anchor rod.
Step S2022, determining a coal wall in the current image frame; where the coal walls in the image frames may be identified with an object detection algorithm.
Step S2023, determining that the closed space formed by the coal wall and the straight line mark is a hollow space.
Wherein the empty top area is marked by a red rectangular frame. As shown at 101 in fig. 1A, is a portion of a coal wall that also includes a top region and a bottom region. The coal walls and white lines form an enclosed space, such as the region indicated at 102 in FIG. 1A, which is the headspace.
Step S203, judging whether the empty roof area has anchor net supporting action;
and identifying whether the action in the image is the anchor net supporting action by using the trained convolutional neural network, wherein a large number of anchor net supporting action pictures can be collected in advance to train the neural network, and the more pictures are collected, the more accurate the identification result is.
Step S204, if the anchor net supporting action is determined, whether temporary supporting equipment exists is judged; if the anchor net supporting action is determined and no temporary supporting equipment exists, executing the step S205;
and step S205, sending alarm information.
Wherein, the trained convolutional neural network can be used for identifying the temporary support equipment.
The operation specification stipulates that temporary supporting equipment must be installed before the anchor net support action, and if the temporary supporting equipment is not installed, the occurrence of collapse and roof fall accidents is easily caused in the anchor net support process.
If the anchor net supporting action exists, the fact that workers are performing anchor net supporting work in the image of the current frame is shown, but if temporary supporting equipment does not exist in the image, the fact that the workers do not perform temporary supporting in advance is shown, violation operation is caused, and an alarm is given.
According to the method, the condition of the empty roof operation can be recognized from the image, namely the alarm information is sent out when the anchor net supporting action is determined from the image and no temporary supporting equipment is available. The manual monitoring is changed into machine monitoring, and the monitoring effect is improved. If illegal operation is found, timely alarming is carried out, and the occurrence probability of roof collapse accidents is reduced.
In one possible embodiment, the method further comprises:
if the bolting action is determined to be absent, judging whether a temporary bracing action exists;
the temporary supporting action refers to the action of mounting and fixing the cross beam by holding the cross beam by an operator; if no temporary support action exists, recording the time point of the current frame;
judging whether temporary support actions exist in a plurality of image frames within a preset time period, and if no temporary support actions exist, giving an alarm at a preset time point;
the predetermined time point is the time point of the image frame + a predetermined time period;
and if at least one frame has temporary support action, ending the process.
Wherein, the shooting frequency of a general camera is 60 frames/second, and the time interval of two adjacent image frames is 1/60 seconds; in order to avoid missing the situation that the temporary support action is not detected, a frame-by-frame detection method may be adopted, but in order to save the resource consumption of calculation and reduce the calculation amount, a frame skipping detection method may also be adopted, for example, one image frame is extracted every 10 or 20 image frames for determination. In the above method, if there is no operation for bolting the anchor net, and if there is no temporary bracing operation and after monitoring for a predetermined time threshold, there is no operation for the temporary bracing, it is determined that the operation is also an illegal case, and although there is no operation, the bracing is not performed at all times. The time threshold may be 3 minutes or 5 minutes, and the specific time may be flexibly set, and the application is not particularly limited.
If the temporary support action is determined, if whether the operation is in compliance or not is judged, whether the number of the temporary support equipment reaches the standard or not is also judged, referring to a flow chart for judging whether the temporary support is in compliance or not shown in the attached figure 3, wherein the method comprises the following steps:
step S301, determining the number of temporary support devices in the current image frame;
step S302, judging whether the number of temporary support equipment in the image frame is less than a preset threshold value;
if yes, go to step S303;
step S303, recording the time point of the current frame;
step S304, judging whether temporary support action exists in a plurality of image frames within a preset time period;
step S305, if no temporary support action exists, alarming at a preset time point;
if so; step S306 is executed;
step S306, sending alarm information at a preset time point;
wherein the predetermined time point is a time point of the image frame + a predetermined period of time.
The method has the action of temporary support, but the number of the installed temporary support equipment does not meet the standard requirement all the time, so the alarm is given.
If the anchor net supporting action is determined, judging whether the anchor net supporting action is qualified; if not, alarm information is sent out.
In one possible embodiment, the method further comprises: if the anchor net supporting action is determined, judging whether the anchor net supporting action is qualified; if not, alarm information is sent out. Wherein, in the operation personnel anchor net supporting action, divide it into two kinds of types of compliance and non-compliance: the compliance action is characterized in that an operator firstly uses the top anchor rod drilling machine to drill a hole on the top plate, when the top anchor rod drilling machine is operated, two persons are required to operate, one person operates the drilling machine, and the other person holds the drill rod, so that the drill rod can be ensured to drill smoothly. When the anchor rod is pre-tightened, an operator needs to tighten the nut of the anchor rod by using a torque wrench. After the top plate is supported, the drilling machine needs to be removed;
the out-of-compliance action is characterized in that a top anchor rod drilling machine is not used for drilling a top plate, one person operates the top anchor rod drilling machine, an anchor rod is not pre-tightened, and the drilling machine is not withdrawn.
The method specifically comprises the following steps:
extracting the characteristics of the content in the labeling frame by using a convolutional neural network;
determining an identification result according to the extracted features;
determining non-compliance if only one person is identified to work;
if two people are determined to work, compliance is determined.
It is also possible to determine whether the angle of the anchor rod is within a predetermined threshold range of angles, and if so, to act in compliance, and if not, to act in violation.
The application also provides another monitoring method for the empty roof operation, and the method is shown in a flow chart shown in the attached figure 4; the method comprises the following steps:
starting;
step S401, judging whether a white line exists in the picture;
step S402, identifying a coal wall;
step S403, marking the coal wall to a white line with a red rectangular frame to be a vacant top area;
step S404, judging whether the empty top area has anchor net supporting action, if so, executing step S405; if not, executing step S407;
step S405, judging whether the anchor net supporting action is in compliance, if not, executing step S415; if so, go to step 406;
step S406, judging whether a temporary support exists; if yes, the process is ended, and if no, step S415 is executed;
step S407, judging whether the empty roof area has temporary support action, if so, executing step S408, and if not, executing step S416;
step S408, recording time t 4;
step S409, clearing time t 1;
step S410, identifying the number of temporary support equipment in the picture;
step S411, judging whether x is larger than or equal to y; if yes, go to step S421, if no, go to step S412;
step S412, recording the time t 5;
step S413, calculating t6 ═ t5-t 4;
step S414, judging whether T6 exceeds a threshold T2; if yes, executing step S415, if no, executing step S410;
step S415, alarming;
step S416, recording the time t 1;
step S417, judging whether the next frame of picture has a support action; if yes, executing step S409, if no, executing step S418;
step S418, recording time t 2;
step S419, calculating t 3-t 2-t 1;
step S420, judging whether T3 exceeds a threshold T1; if yes, executing step S415, if no, executing step S417;
step S421, clearing time t 3; and (6) ending.
In a second aspect, an embodiment of the present invention further provides a monitoring device for overhead working, referring to a schematic structural diagram of the monitoring device for overhead working shown in fig. 5, where the monitoring device includes:
an obtaining module 51, configured to obtain a current image frame in a mine;
a determining module 52, configured to determine a free-top region in the current image frame;
the judging module 53 is used for judging whether the empty roof area has anchor net supporting action;
if the anchor net supporting action is determined, judging whether temporary supporting equipment exists or not;
and the alarm module 54 is used for determining that the anchor net support action exists and no temporary support equipment exists by the judgment module and sending alarm information.
The judging module 53 is further configured to judge whether there is a temporary supporting action if it is determined that there is no anchor net supporting action;
if no temporary support action exists, recording the time point of the current frame;
judging whether temporary support actions exist in a plurality of image frames within a preset time period, and if no temporary support actions exist, giving an alarm at a preset time point;
the predetermined time point is the time point of the image frame + a predetermined time period;
and if at least one frame has temporary support action, ending the process.
In a possible implementation manner, the determining module 53 is further configured to determine the number of temporary support devices in the current image frame if it is determined that there is a temporary support action;
judging whether the number of temporary support equipment in the image frame is less than a preset threshold value or not;
if the number of the temporary support equipment is smaller than a preset threshold value, recording the time point of the current frame;
acquiring a first image frame of a preset time point after the time point of the current image frame;
and judging whether the number of the temporary support equipment in the first image frame is less than a preset threshold value or not, and if so, giving an alarm.
In a possible embodiment, the judging module 53 is further configured to, if it is determined that there is an anchor net supporting action, judge whether the anchor net supporting action is qualified;
the alarm module is also used for sending alarm information if the judgment module determines that the anchor net supporting action is unqualified.
In a possible implementation, the determining module 52 is further configured to determine a preset straight mark in the current image frame; wherein the straight line mark is formed by artificial spray painting at the edge of the ready-made anchor net support;
determining a coal wall in the current image frame;
and determining the closed space formed by the coal wall and the linear mark as a hollow space.
In a third aspect, an embodiment of the present invention further provides a monitoring device for overhead operation, referring to a schematic structural diagram of the monitoring device shown in fig. 6; the monitoring device includes: at least one processor 61 and at least one memory 62;
the memory 62 is used to store one or more program instructions;
the processor 61 is configured to execute one or more program instructions to perform the method according to any one of the above-mentioned embodiments.
In a fourth aspect, embodiments of the present invention also provide a computer-readable storage medium having one or more program instructions embodied therein, the one or more program instructions being configured to be executed to perform the method according to any one of the above-mentioned methods.
In an embodiment of the invention, the processor may be an integrated circuit chip having signal processing capability. The Processor may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete Gate or transistor logic device, discrete hardware component.
The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The processor reads the information in the storage medium and completes the steps of the method in combination with the hardware.
The storage medium may be a memory, for example, which may be volatile memory or nonvolatile memory, or which may include both volatile and nonvolatile memory.
The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory.
The volatile Memory may be a Random Access Memory (RAM) which serves as an external cache. By way of example and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), SLDRAM (SLDRAM), and Direct Rambus RAM (DRRAM).
The storage media described in connection with the embodiments of the invention are intended to comprise, without being limited to, these and any other suitable types of memory.
Those skilled in the art will appreciate that the functionality described in the present invention may be implemented in a combination of hardware and software in one or more of the examples described above. When software is applied, the corresponding functionality may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.
The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made on the basis of the technical solutions of the present invention should be included in the scope of the present invention.
Claims (5)
1. A method of monitoring a lost circulation operation, comprising:
acquiring a current image frame in a mine;
determining a region of empty tops in the current image frame;
judging whether the empty roof area has anchor net supporting action or not;
if the anchor net supporting action is determined, judging whether temporary supporting equipment exists or not, and if the anchor net supporting action is determined and no temporary supporting equipment exists, sending alarm information;
the method further comprises the following steps:
if the bolting action is determined to be absent, judging whether a temporary bracing action exists;
if no temporary support action exists, recording the time point of the current frame;
judging whether temporary support actions exist in a plurality of image frames within a preset time period, and if no temporary support actions exist, giving an alarm at a preset time point;
the predetermined point in time = point in time of the image frame + a predetermined period of time;
the method further comprises the following steps:
if the temporary support action is determined, determining the number of temporary support devices in the current image frame;
judging whether the number of temporary support equipment in the current image frame is less than a preset threshold value or not;
if the number of the temporary support devices is less than a preset threshold value, recording the time point of the current image frame,
acquiring a first image frame of a preset time point after the time point of the current image frame;
judging whether the number of temporary support equipment in the first image frame is smaller than a preset threshold value or not, and if so, giving an alarm;
if the anchor net supporting action is determined, judging whether the anchor net supporting action is qualified; if not, alarm information is sent out.
2. The method of claim 1, wherein determining a region of empty space in the current image frame comprises:
determining a preset straight line mark in the current image frame; wherein the straight line mark is formed by artificial spray painting at the edge of the ready-made anchor net support;
determining a coal wall in the current image frame;
and determining the closed space formed by the coal wall and the straight line mark as a hollow top area.
3. A monitoring device for overhead operations, comprising:
the acquisition module is used for acquiring a current image frame in a mine;
a determining module for determining a region of empty space in the current image frame;
the judging module is used for judging whether the empty top area has anchor net supporting action;
if the anchor net supporting action is determined, judging whether temporary supporting equipment exists or not;
the alarm module is used for sending alarm information when the judgment module determines that the anchor net support action exists and no temporary support equipment exists;
the determining module is further configured to,
if the bolting action is determined to be absent, judging whether a temporary bracing action exists;
if no temporary support action exists, recording the time point of the current image frame;
judging whether temporary support action exists in a plurality of image frames within a preset time period;
the alarm module is also used for determining that if no temporary support action exists, alarming at a preset time point;
the predetermined point in time = point in time of the image frame + a predetermined period of time;
the determining module is further configured to,
if the temporary support action is determined, determining the number of temporary support devices in the current image frame;
judging whether the number of temporary support equipment in the current image frame is less than a preset threshold value or not;
if the number of the temporary support devices is less than a preset threshold value, recording the time point of the current image frame,
acquiring a first image frame of a preset time point after the time point of the current image frame;
judging whether the number of temporary support equipment in the first image frame is smaller than a preset threshold value or not;
the alarm module is further used for sending alarm information if the judgment module determines that the number of the temporary support equipment is smaller than a preset threshold value;
the judging module is also used for judging whether the anchor net supporting action is qualified or not if the anchor net supporting action is determined;
the alarm module is also used for sending alarm information if the judgment module determines that the anchor net supporting action is unqualified.
4. A monitoring device for overhead operations, the monitoring device comprising: at least one processor and at least one memory;
the memory is to store one or more program instructions;
the processor, configured to execute one or more program instructions to perform the method of any of claims 1-2.
5. A computer-readable storage medium having one or more program instructions embodied therein for being executed to perform the method of any of claims 1-2.
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