CN111366972A - Goaf power transmission line monitoring method and device - Google Patents
Goaf power transmission line monitoring method and device Download PDFInfo
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- CN111366972A CN111366972A CN202010125159.1A CN202010125159A CN111366972A CN 111366972 A CN111366972 A CN 111366972A CN 202010125159 A CN202010125159 A CN 202010125159A CN 111366972 A CN111366972 A CN 111366972A
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Abstract
The invention provides a monitoring method and a monitoring device for a transmission line in a goaf, which are based on the first monitoring time, the second monitoring time, the third monitoring time and the position information of three monitoring points when the three monitoring points acquire sound data: and calculating the position of the collapse area according to the first position information, the second position information and the third position information, and determining the collapse degree of the collapse area according to sound data emitted by the sound source respectively contained in the first monitoring information, the second monitoring information and the third monitoring information, so that effective measures are taken in advance to protect the power transmission line.
Description
Technical Field
The invention relates to the technical field of power transmission and distribution, in particular to a monitoring method and device for a transmission line in a goaf.
Background
At present, monitoring of the transmission line in the goaf is post monitoring, and monitoring can be performed only when the surface of the goaf is deformed, for example, the inclination angle of a tower, the uneven settlement of the foundation of the tower and a scheme for predicting a collapse area generated by deformation of the surface of the goaf in advance are lacked.
Disclosure of Invention
In order to solve the above problems, an object of the embodiments of the present invention is to provide a monitoring method and device for a transmission line in a goaf.
In a first aspect, an embodiment of the present invention provides a goaf power transmission line monitoring method, including:
sequentially acquiring first monitoring information and first monitoring time sent by a first monitoring point, second monitoring information and second monitoring time sent by a second monitoring point, and third monitoring information and third monitoring time sent by a third monitoring point, wherein the first monitoring time is earlier than the second monitoring time, and the second monitoring time is earlier than the third monitoring time; the first monitoring information, the second monitoring information and the third monitoring information all comprise acoustic wave data of infrasonic waves generated in a collapse area in the goaf;
acquiring first position information of a first monitoring point, second position information of a second monitoring point and third position information of a third monitoring point, and determining the position of the collapse area based on the first monitoring time, the second monitoring time, the third monitoring time, the first position information, the second position information and the third position information;
and determining the collapse degree of the collapse area according to the sound data emitted by the sound source respectively contained in the first monitoring information, the second monitoring information and the third monitoring information.
In a second aspect, an embodiment of the present invention further provides a goaf power transmission line monitoring device, including:
the acquisition module is used for sequentially acquiring first monitoring information and first monitoring time sent by a first monitoring point, second monitoring information and second monitoring time sent by a second monitoring point, and third monitoring information and third monitoring time sent by a third monitoring point, wherein the first monitoring time is earlier than the second monitoring time, and the second monitoring time is earlier than the third monitoring time; the first monitoring information, the second monitoring information and the third monitoring information all comprise acoustic wave data of infrasonic waves generated in a collapse area in the goaf;
the first processing module is used for acquiring first position information of a first monitoring point, second position information of a second monitoring point and third position information of a third monitoring point, and determining the position of the collapse area based on the first monitoring time, the second monitoring time, the third monitoring time, the first position information, the second position information and the third position information;
and the second processing module is used for determining the collapse degree of the collapse area according to the sound data emitted by the sound source, which are respectively contained in the first monitoring information, the second monitoring information and the third monitoring information.
In a third aspect, the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program performs the steps of the method in the first aspect.
In a fourth aspect, an embodiment of the present invention further provides a goaf power transmission line monitoring apparatus, where the goaf power transmission line monitoring apparatus includes a memory, a processor, and one or more programs, where the one or more programs are stored in the memory and configured to be executed by the processor to perform the steps of the method according to the first aspect.
In the solutions provided in the foregoing first to fourth aspects of the embodiments of the present invention, based on the first monitoring time, the second monitoring time, the third monitoring time, and the location information of three monitoring points when the three monitoring points acquire sound data: the method comprises the steps of calculating the position of a collapse area according to first position information, second position information and third position information, determining the collapse degree of the collapse area according to sound data emitted by a sound source and respectively contained in the first monitoring information, the second monitoring information and the third monitoring information, and compared with a mode that the collapse area generated by goaf surface deformation cannot be predicted in advance in the related art, not only can the position of the collapse area generated by the goaf surface deformation be predicted in advance, but also the collapse degree of the collapse area can be determined, so that effective measures can be taken in advance to protect the power transmission line.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
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 shows a flowchart of a monitoring method for a transmission line in a goaf according to embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram illustrating a goaf power transmission line monitoring device provided in embodiment 2 of the present invention;
fig. 3 shows a schematic structural diagram of another goaf power transmission line monitoring device provided by the embodiment of the invention.
Detailed Description
At present, monitoring of the transmission line in the goaf is post monitoring, and monitoring can be performed only when the surface of the goaf is deformed, for example, the inclination angle of a tower, the uneven settlement of the foundation of the tower and a scheme for predicting a collapse area generated by deformation of the surface of the goaf in advance are lacked.
The natural phenomenon of micro-earthquake is often encountered in the coal mining process, infrasonic waves are generated before the micro-earthquake, the frequency of the infrasonic waves is less than 20Hz, and the infrasonic waves can be transmitted in a long distance in space. The method mainly comprises the step of judging the position and the collapse degree of the collapse area of the goaf by monitoring the infrasonic waves, so that effective measures are taken in advance to protect the power transmission line.
In order to monitor infrasonic waves emitted from a collapse region with collapse in the goaf, three monitoring points can be arranged in the goaf in advance. The first monitoring point can be arranged on the corner tower of the power transmission line, and the second monitoring point and the third monitoring point are respectively arranged on different linear towers of the power transmission line where the first monitoring point is located. The first monitoring point, the second monitoring point and the third monitoring point can be respectively provided with a sound collection device and a computing device connected with the sound collection device, and the computing device can control the connected sound collection device.
When the sound collection equipment collects the sound data of the infrasonic waves generated in the goaf, the computing equipment acquires the sound data of the infrasonic waves collected by the sound collection equipment, and sends a monitoring point identifier cached by the computing equipment, the sound data of the infrasonic waves and a current time serving as monitoring time to a background server, and the background server processes the data and determines the position and the collapse degree of a collapse area in the goaf.
The monitoring point identifier is used for representing a monitoring point where the computing equipment is located; the monitoring point identification comprises: a first monitoring point identification, a second monitoring point identification, and a third monitoring point identification.
And when the monitoring point identifier cached by the computing equipment is the monitoring point identifier of the first monitoring point, the computing equipment is set at the first monitoring point.
And the background server can determine that the acquired sound data and monitoring time of the infrasonic wave are sent by the first monitoring point, the second monitoring point or the third monitoring point according to the acquired monitoring point identification when acquiring the equipment identification, the sound data of the infrasonic wave and the monitoring time of the computing equipment.
Based on this, this embodiment provides a monitoring method and device for a transmission line in a goaf, where the first monitoring time, the second monitoring time, the third monitoring time, and the location information of three monitoring points when sound data is acquired based on the three monitoring points: and calculating the position of the collapse area according to the first position information, the second position information and the third position information, and determining the collapse degree of the collapse area according to sound data emitted by the sound source respectively contained in the first monitoring information, the second monitoring information and the third monitoring information, so that effective measures are taken in advance to protect the power transmission line.
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, the present application is described in further detail with reference to the accompanying drawings and the detailed description.
Example 1
The embodiment provides a monitoring method for a transmission line in a goaf, and an execution main body is a background server.
The background server can adopt any computer capable of processing sound data of infrasonic waves in the prior art to determine the position and the collapse degree of the collapse area in the goaf, and details are not repeated here.
Referring to fig. 1, the monitoring method for the transmission line of the goaf includes the following steps:
In the step 100, according to the sequence of sending the monitoring information and the monitoring time, it can be determined that the first monitoring point firstly obtains the acoustic wave data of the infrasonic wave generated in the collapse region in the gob, the second monitoring point secondly obtains the acoustic wave data of the infrasonic wave generated in the collapse region in the gob, and the third monitoring point finally obtains the acoustic wave data of the infrasonic wave generated in the collapse region in the gob.
Of course, the first monitoring point, the second monitoring point and the third monitoring point are arranged at different positions of the goaf. Therefore, when the sound wave data of the infrasonic wave generated in the collapse area in the goaf is collected, the sound wave data may be collected first by the second monitoring point or the third monitoring point, but no matter how the sequence of the sound data of the infrasonic wave is collected by the three monitoring points, the specific processing procedure of the background server is similar to the processing procedure described in the subsequent step 102 to step 104 of the step 100, and the details are not repeated here.
102, acquiring first position information of a first monitoring point, second position information of a second monitoring point and third position information of a third monitoring point, and determining the position of the collapse area based on the first monitoring time, the second monitoring time, the third monitoring time, the first position information, the second position information and the third position information.
In step 102, the first location information of the first monitoring point, the second location information of the second monitoring point, and the third location information of the third monitoring point are pre-stored in the background server.
The first position information, the second position information and the third position information are two-dimensional coordinates, and position coordinates of the actually measured first monitoring point, the actually measured second monitoring point and the actually measured third monitoring point in the world coordinate system are converted into two-dimensional coordinates in the rectangular coordinate system.
The background server may convert the position coordinate of the first monitoring point, the position coordinate of the second monitoring point, and the position coordinate of the third monitoring point by any method that can convert the position coordinate in the world coordinate system to the two-dimensional coordinate in the rectangular coordinate system in the prior art, which is not described herein again.
In order to determine the location of the collapse area, the step 102 may perform the following steps (1) to (4):
(1) calculating a first time difference value between the second monitoring time and the first monitoring time, and calculating a second time difference value between the third monitoring time and the second monitoring time;
(2) acquiring the propagation speed of infrasonic waves in a medium;
(3) calculating the position coordinates of the collapse area according to the first position information, the second position information, the third position information, the first time difference value, the second time difference value and the propagation speed of the infrasonic wave;
(4) and converting the position coordinates of the collapse area to determine the position of the collapse area.
In the above step (2), the propagation speed of the infrasonic wave in the medium is cached in the server in advance.
In the above step (3), the position coordinates of the collapse region are calculated by the following equation set:
wherein x is1Abscissa, y, representing first position information1Ordinate, x, representing first position information2Abscissa, y, representing second position information2Ordinate, x, representing second position information3Abscissa, y, representing third position information3Ordinate, x, representing third position information4Abscissa, y, representing the position coordinate of the collapsed region4A vertical coordinate representing the position coordinate of the collapsed region, r represents the distance between the first monitoring point and the collapsed region, t1Representing a first time difference, t2Represents the second time difference, and v represents the velocity of propagation of the infrasonic wave.
The above equation set can be calculated to obtain the position coordinate (x) of the collapse region4，y4) Besides, the distance r between the first monitoring point and the collapse area can be calculated.
In the step (4), the position coordinates of the collapse area may be subjected to world coordinate conversion to obtain the position coordinates of the collapse area in a world coordinate system, and the position of the collapse area is determined.
The background server may perform world coordinate conversion on the position coordinates of the collapse area by using any method in the prior art that can convert two-dimensional coordinates in a rectangular coordinate system to position coordinates in a world coordinate system, which is not described herein again.
And step 104, determining the collapse degree of the collapse area according to sound data emitted by the sound source and respectively contained in the first monitoring information, the second monitoring information and the third monitoring information.
In order to determine the degree of collapse of the collapsed region, the above step 104 may perform the following steps (1) to (5):
(1) respectively calculating the distances between a first monitoring point, a second monitoring point and a third monitoring point and the collapse area according to the position coordinates of the collapse area, the first position information, the second position information and the third position information;
(2) determining the monitoring point which is closest to the collapse area in the first monitoring point, the second monitoring point and the third monitoring point according to the calculated distances between the first monitoring point, the second monitoring point and the third monitoring point and the collapse area respectively;
(3) when the monitoring point closest to the collapse area is the first monitoring point, processing sound data contained in the first monitoring information to determine the collapse degree of the collapse area;
(4) when the monitoring point closest to the collapse area is the second monitoring point, processing sound data contained in the second monitoring information to determine the collapse degree of the collapse area;
(5) and when the monitoring point closest to the collapse area is the third monitoring point, processing sound data contained in the third monitoring information to determine the collapse degree of the collapse area.
In the step (1), the calculation formulas for calculating the distance between the two points in the prior art can be adopted to calculate the distances between the first monitoring point, the second monitoring point and the third monitoring point and the collapse area respectively, and the detailed description is omitted here.
In the above steps (3) to (5), the step of determining the collapse degree of the collapsed region by processing the sound data included in the first monitor point, the second monitor point, or the third monitor information may include the following steps (31) to (34):
(31) filtering the sound data to obtain a waveform of the sound data;
(32) carrying out Fourier transform on the waveform of the sound data to obtain the amplitude of the waveform;
(33) calculating a sampling thickness ratio of the collapse region based on the amplitude of the waveform;
(34) and determining the collapse degree of the collapse area according to the calculated thickness ratio.
In the step (31), the background server may perform filtering processing on the sound data by using filtering methods such as kalman filtering, wavelet filtering, and the like to obtain a waveform of the sound data, which is not described herein any more.
In the step (33) above, the ratio of the thickness of the collapse region may be calculated by the following formula:
λ＝k1+k2A+k3A2+k4A3+…+knAn
wherein a represents the amplitude of the waveform; λ represents the thickness ratio of the collapse region; k is a radical of1、k2、k3、k4、…knAnd the thickness ratio calculation coefficient is shown.
And the thickness ratio calculation coefficient is calculated by the background server according to a least square method.
In the step (34), the background server stores the corresponding relationship between the thickness-to-thickness ratio value range and the collapse degree.
In one embodiment, the correspondence between the thickness ratio value range and the collapse degree can be expressed as:
degree of collapse one- (0, a)
Degree of collapse two- (a, b)
Degree of collapse three- (b, c)
The mining thickness ratio is inversely proportional to the collapse degree, i.e., a smaller mining thickness ratio indicates a more severe collapse of the collapsed region in the gob. Thus, the first level of collapse indicates the most severe level of collapse, the second level of collapse indicates the second most severe level of collapse, and the third level of collapse indicates the least severe level of collapse.
When the calculated thickness ratio falls into a certain numerical range in the corresponding relation between the numerical range of the thickness ratio and the collapse degree, the background server determines the collapse degree corresponding to the numerical range as the collapse degree of the collapse area.
For example, when it is determined that the collapse degree of the collapse region falls within the numerical range (a, b), the background server determines the collapse degree two corresponding to the numerical range (a, b) as the collapse degree of the collapse region.
The above contents show that the monitoring method for the transmission line in the goaf can provide prediction data for the transmission line in the goaf, prevent the transmission line from inclining in advance, prevent the transmission line in the goaf from accidents such as tower collapse and disconnection, and ensure safe and stable operation of the transmission line.
In summary, in the goaf power transmission line monitoring method provided in this embodiment, based on the first monitoring time, the second monitoring time, the third monitoring time, and the location information of the three monitoring points when the three monitoring points acquire the sound data: the method comprises the steps of calculating the position of a collapse area according to first position information, second position information and third position information, determining the collapse degree of the collapse area according to sound data emitted by a sound source and respectively contained in the first monitoring information, the second monitoring information and the third monitoring information, and compared with a mode that the collapse area generated by goaf surface deformation cannot be predicted in advance in the related art, not only can the position of the collapse area generated by the goaf surface deformation be predicted in advance, but also the collapse degree of the collapse area can be determined, so that effective measures can be taken in advance to protect the power transmission line.
Example 2
The embodiment provides a monitoring device for a transmission line in a goaf, which is used for executing the monitoring method for the transmission line in the goaf.
Referring to a schematic structural diagram of a goaf power transmission line monitoring device shown in fig. 2, the goaf power transmission line monitoring device provided in this embodiment includes:
an obtaining module 200, configured to sequentially obtain first monitoring information and first monitoring time sent by a first monitoring point, second monitoring information and second monitoring time sent by a second monitoring point, and third monitoring information and third monitoring time sent by a third monitoring point, where the first monitoring time is earlier than the second monitoring time, and the second monitoring time is earlier than the third monitoring time; the first monitoring information, the second monitoring information and the third monitoring information all comprise acoustic wave data of infrasonic waves generated in a collapse area in the goaf;
the first processing module 202 is configured to obtain first position information of a first monitoring point, second position information of a second monitoring point, and third position information of a third monitoring point, and determine a location of the collapse area based on the first monitoring time, the second monitoring time, the third monitoring time, the first position information, the second position information, and the third position information;
the second processing module 204 is configured to determine the collapse degree of the collapse area according to sound data emitted by the sound source, which is respectively included in the first monitoring information, the second monitoring information, and the third monitoring information.
The first processing module is configured to determine a location of the collapse area based on the first monitoring time, the second monitoring time, the third monitoring time, the first location information, the second location information, and the third location information, and includes:
calculating a first time difference value between the second monitoring time and the first monitoring time, and calculating a second time difference value between the third monitoring time and the second monitoring time;
acquiring the propagation speed of infrasonic waves in a medium;
calculating the position coordinates of the collapse area according to the first position information, the second position information, the third position information, the first time difference value, the second time difference value and the propagation speed of the infrasonic wave;
and converting the position coordinates of the collapse area to determine the position of the collapse area.
In summary, the goaf power transmission line monitoring device provided in this embodiment is based on the first monitoring time, the second monitoring time, the third monitoring time and the location information of the three monitoring points when the three monitoring points acquire the sound data: the method comprises the steps of calculating the position of a collapse area according to first position information, second position information and third position information, determining the collapse degree of the collapse area according to sound data emitted by a sound source and respectively contained in the first monitoring information, the second monitoring information and the third monitoring information, and compared with a mode that the collapse area generated by goaf surface deformation cannot be predicted in advance in the related art, not only can the position of the collapse area generated by the goaf surface deformation be predicted in advance, but also the collapse degree of the collapse area can be determined, so that effective measures can be taken in advance to protect the power transmission line.
Example 3
The present embodiment proposes a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the data processing method described in embodiment 1 above. For specific implementation, refer to method embodiment 1, which is not described herein again.
In addition, referring to another schematic structural diagram of the goaf power transmission line monitoring device shown in fig. 3, the present embodiment further provides a goaf power transmission line monitoring device, where the goaf power transmission line monitoring device includes a bus 51, a processor 52, a transceiver 53, a bus interface 54, a memory 55, and a user interface 56. The goaf transmission line monitoring device comprises a memory 55.
In this embodiment, the monitoring device for the transmission line in the goaf further comprises: one or more programs stored on the memory 55 and executable on the processor 52, configured to be executed by the processor for performing the following steps (1) to (3):
(1) sequentially acquiring first monitoring information and first monitoring time sent by a first monitoring point, second monitoring information and second monitoring time sent by a second monitoring point, and third monitoring information and third monitoring time sent by a third monitoring point, wherein the first monitoring time is earlier than the second monitoring time, and the second monitoring time is earlier than the third monitoring time; the first monitoring information, the second monitoring information and the third monitoring information all comprise acoustic wave data of infrasonic waves generated in a collapse area in the goaf;
(2) acquiring first position information of a first monitoring point, second position information of a second monitoring point and third position information of a third monitoring point, and determining the position of the collapse area based on the first monitoring time, the second monitoring time, the third monitoring time, the first position information, the second position information and the third position information;
(3) and determining the collapse degree of the collapse area according to the sound data emitted by the sound source respectively contained in the first monitoring information, the second monitoring information and the third monitoring information.
A transceiver 53 for receiving and transmitting data under the control of the processor 52.
In fig. 3, a bus architecture (represented by bus 51), bus 51 may include any number of interconnected buses and bridges, with bus 51 linking together various circuits including one or more processors, represented by general purpose processor 52, and memory, represented by memory 55. The bus 51 may also link various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further in this embodiment. A bus interface 54 provides an interface between the bus 51 and the transceiver 53. The transceiver 53 may be one element or may be multiple elements, such as multiple receivers and transmitters, providing a means for communicating with various other apparatus over a transmission medium. For example: the transceiver 53 receives external data from other devices. The transceiver 53 is used for transmitting data processed by the processor 52 to other devices. Depending on the nature of the computing system, a user interface 56, such as a keypad, display, speaker, microphone, joystick, may also be provided.
The processor 52 is responsible for managing the bus 51 and the usual processing, running a general-purpose operating system as described above. And memory 55 may be used to store data used by processor 52 in performing operations.
Alternatively, processor 52 may be, but is not limited to: a central processing unit, a singlechip, a microprocessor or a programmable logic device.
It will be appreciated that the memory 55 in embodiments of the invention may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile 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. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of example, but not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data rate Synchronous Dynamic random access memory (ddr SDRAM ), Enhanced Synchronous SDRAM (ESDRAM), Synchlink DRAM (SLDRAM), and direct memory bus RAM (DRRAM). The memory 55 of the systems and methods described in this embodiment is intended to comprise, without being limited to, these and any other suitable types of memory.
In some embodiments, memory 55 stores the following elements, executable modules or data structures, or a subset thereof, or an expanded set thereof: an operating system 551 and application programs 552.
The operating system 551 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, for implementing various basic services and processing hardware-based tasks. The application 552 includes various applications, such as a Media Player (Media Player), a Browser (Browser), and the like, for implementing various application services. A program implementing the method of an embodiment of the present invention may be included in the application 552.
In summary, the computer-readable storage medium and the goaf power transmission line monitoring apparatus provided in this embodiment are based on the first monitoring time, the second monitoring time, the third monitoring time, and the location information of three monitoring points when the three monitoring points acquire the sound data: the method comprises the steps of calculating the position of a collapse area according to first position information, second position information and third position information, determining the collapse degree of the collapse area according to sound data emitted by a sound source and respectively contained in the first monitoring information, the second monitoring information and the third monitoring information, and compared with a mode that the collapse area generated by goaf surface deformation cannot be predicted in advance in the related art, not only can the position of the collapse area generated by the goaf surface deformation be predicted in advance, but also the collapse degree of the collapse area can be determined, so that effective measures can be taken in advance to protect the power transmission line.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A monitoring method for a transmission line in a goaf is characterized by comprising the following steps:
sequentially acquiring first monitoring information and first monitoring time sent by a first monitoring point, second monitoring information and second monitoring time sent by a second monitoring point, and third monitoring information and third monitoring time sent by a third monitoring point, wherein the first monitoring time is earlier than the second monitoring time, and the second monitoring time is earlier than the third monitoring time; the first monitoring information, the second monitoring information and the third monitoring information all comprise acoustic wave data of infrasonic waves generated in a collapse area in the goaf;
acquiring first position information of a first monitoring point, second position information of a second monitoring point and third position information of a third monitoring point, and determining the position of the collapse area based on the first monitoring time, the second monitoring time, the third monitoring time, the first position information, the second position information and the third position information;
and determining the collapse degree of the collapse area according to the sound data emitted by the sound source respectively contained in the first monitoring information, the second monitoring information and the third monitoring information.
2. The method of claim 1, wherein determining the location of the collapsed region based on the first monitoring time, the second monitoring time, the third monitoring time, the first location information, the second location information, and the third location information comprises:
calculating a first time difference value between the second monitoring time and the first monitoring time, and calculating a second time difference value between the third monitoring time and the second monitoring time;
acquiring the propagation speed of infrasonic waves in a medium;
calculating the position coordinates of the collapse area according to the first position information, the second position information, the third position information, the first time difference value, the second time difference value and the propagation speed of the infrasonic wave;
and converting the position coordinates of the collapse area to determine the position of the collapse area.
3. The method of claim 1, wherein calculating the location coordinates of the collapsed region based on the first location information, the second location information, the third location information, the first time difference value, the second time difference value, and the velocity of propagation of the infrasonic wave comprises:
calculating the location coordinates of the collapsed region by the following equation set:
wherein x is1Abscissa, y, representing first position information1Ordinate, x, representing first position information2Abscissa, y, representing second position information2Ordinate, x, representing second position information3Abscissa, y, representing third position information3Ordinate, x, representing third position information４Abscissa, y, representing the position coordinate of the collapsed region4A vertical coordinate representing the position coordinate of the collapsed region, r represents the distance between the first monitoring point and the collapsed region, t1Representing a first time difference, t2Represents the second time difference, and v represents the velocity of propagation of the infrasonic wave.
4. The method according to claim 2, wherein determining the collapse degree of the collapse area according to the sound data emitted by the sound source respectively contained in the first monitoring information, the second monitoring information and the third monitoring information comprises:
respectively calculating the distances between a first monitoring point, a second monitoring point and a third monitoring point and the collapse area according to the position coordinates of the collapse area, the first position information, the second position information and the third position information;
determining the monitoring point which is closest to the collapse area in the first monitoring point, the second monitoring point and the third monitoring point according to the calculated distances between the first monitoring point, the second monitoring point and the third monitoring point and the collapse area respectively;
when the monitoring point closest to the collapse area is the first monitoring point, processing sound data contained in the first monitoring information to determine the collapse degree of the collapse area;
when the monitoring point closest to the collapse area is the second monitoring point, processing sound data contained in the second monitoring information to determine the collapse degree of the collapse area;
and when the monitoring point closest to the collapse area is the third monitoring point, processing sound data contained in the third monitoring information to determine the collapse degree of the collapse area.
5. The method of claim 2, wherein processing sound data contained in the first monitor point, the second monitor point, or the third monitor information to determine the collapse degree of the collapsed region comprises:
filtering the sound data to obtain a waveform of the sound data;
carrying out Fourier transform on the waveform of the sound data to obtain the amplitude of the waveform;
calculating a sampling thickness ratio of the collapse region based on the amplitude of the waveform;
and determining the collapse degree of the collapse area according to the calculated thickness ratio.
6. The method of claim 5, wherein calculating the thickness ratio of the collapsed region based on the amplitude of the waveform comprises:
calculating a loft ratio of the collapsed region by:
λ＝k1+k2A+k3A2+k4A3+…+knAn
wherein a represents the amplitude of the waveform; λ represents the thickness ratio of the collapse region; k is a radical of1、k2、k3、k4、…knAnd the thickness ratio calculation coefficient is shown.
7. The utility model provides a collecting space area transmission line monitoring devices which characterized in that includes:
the acquisition module is used for sequentially acquiring first monitoring information and first monitoring time sent by a first monitoring point, second monitoring information and second monitoring time sent by a second monitoring point, and third monitoring information and third monitoring time sent by a third monitoring point, wherein the first monitoring time is earlier than the second monitoring time, and the second monitoring time is earlier than the third monitoring time; the first monitoring information, the second monitoring information and the third monitoring information all comprise acoustic wave data of infrasonic waves generated in a collapse area in the goaf;
the first processing module is used for acquiring first position information of a first monitoring point, second position information of a second monitoring point and third position information of a third monitoring point, and determining the position of the collapse area based on the first monitoring time, the second monitoring time, the third monitoring time, the first position information, the second position information and the third position information;
and the second processing module is used for determining the collapse degree of the collapse area according to the sound data emitted by the sound source, which are respectively contained in the first monitoring information, the second monitoring information and the third monitoring information.
8. The apparatus of claim 7, wherein the first processing module is configured to determine the location of the collapsed region based on the first monitoring time, the second monitoring time, the third monitoring time, the first location information, the second location information, and the third location information, and comprises:
calculating a first time difference value between the second monitoring time and the first monitoring time, and calculating a second time difference value between the third monitoring time and the second monitoring time;
acquiring the propagation speed of infrasonic waves in a medium;
calculating the position coordinates of the collapse area according to the first position information, the second position information, the third position information, the first time difference value, the second time difference value and the propagation speed of the infrasonic wave;
and converting the position coordinates of the collapse area to determine the position of the collapse area.
9. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method according to any one of the claims 1 to 6.
10. A goaf power transmission line monitoring apparatus comprising a memory, a processor and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor to perform the steps of the method of any one of claims 1-6.
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