CN114554595A - Coal mine scene positioning method, device, equipment and storage medium - Google Patents
Coal mine scene positioning method, device, equipment and storage medium Download PDFInfo
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- CN114554595A CN114554595A CN202210451437.1A CN202210451437A CN114554595A CN 114554595 A CN114554595 A CN 114554595A CN 202210451437 A CN202210451437 A CN 202210451437A CN 114554595 A CN114554595 A CN 114554595A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
- H04B10/516—Details of coding or modulation
- H04B10/524—Pulse modulation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention relates to the technical field of optical fiber sensing, and discloses a coal mine scene positioning method, a coal mine scene positioning device, coal mine scene positioning equipment and a storage medium. The method comprises the following steps: modulating communication information of an identity identification (id) card and a communication acquisition integrated terminal installed on an optical fiber with a first pulse optical signal on the optical fiber to obtain a second pulse optical signal; sending the second pulse optical signal to an optical sensing communication base station through an optical fiber; demodulating the second pulse optical signal received by the optical sensing communication base station to obtain positioning information of coal mine workers; and sending the positioning information obtained by the optical sensing communication base station to a monitoring platform for displaying. According to the monitoring platform, the positioning information is acquired through the optical fiber, and the pulse optical signals are transmitted and demodulated after being modulated, so that the monitoring platform can obtain and display the positioning information. The positioning of workers in the mine under the condition of no electricity in the mine is realized when mine accidents occur, and the positioning efficiency of the workers in the mine is improved.
Description
Technical Field
The invention relates to the technical field of optical fiber sensing, in particular to a coal mine scene positioning method, a coal mine scene positioning device, coal mine scene positioning equipment and a storage medium.
Background
Along with the development of economic society, the demand of people for various mineral resources is increased more and more, so that the development and collection of various mineral resources are increased gradually. However, the phenomenon of personnel group death and group injury caused by frequent mine accidents due to the complicated underground natural geographic environment of the mine is still common. And after a serious mine disaster occurs, the situations of power failure and network breaking, mine roadway collapse and road blockage and the like are often caused, and underground people in danger cannot get in touch with rescue personnel. In order to avoid the occurrence of related mine accidents and ensure that the ground can know the conditions in the mine in time for rescue after the mine accidents occur, coal mine personnel need to be positioned.
Most of the existing mine scene positioning is based on an electric power system, relevant environmental information is collected through various electric power devices, and a radio system is used for carrying out communication positioning with personnel in a mine. Namely, the positioning difficulty of the existing coal mine scene positioning method is easily increased due to accidents.
Disclosure of Invention
The invention mainly aims to solve the problem that the positioning difficulty is increased easily due to accidents in the conventional coal mine scene positioning method.
The invention provides a coal mine scene positioning method, which is applied to a coal mine scene positioning system, wherein the coal mine scene positioning system comprises a monitoring platform, an identity identification (id) card and an optical fiber sensing communication subsystem, wherein the optical fiber sensing communication subsystem comprises an optical sensing communication base station, a communication and acquisition integrated terminal and an optical fiber; the coal mine scene positioning method comprises the following steps: carrying out distributed modulation on communication information of coal mine workers communicating with a communication acquisition integrated terminal installed on the optical fiber through a corresponding identity identification (id) card and a first pulse optical signal on the optical fiber to obtain a second pulse optical signal; sending the second pulse optical signal to an optical sensing communication base station through the optical fiber; demodulating the received second pulse optical signal through the optical sensing communication base station to obtain the communication information, and analyzing the communication information to obtain the positioning information of the coal mine workers; and displaying the positioning information through the monitoring platform.
Optionally, in a first implementation manner of the first aspect of the present invention, before performing distributed modulation on the communication information that the coal mine staff communicates with the communication acquisition integrated terminal installed on the optical fiber through the corresponding identification id card and the first pulsed light signal on the optical fiber to obtain the second pulsed light signal, the method further includes: acquiring RFID label information of an identity identification (id) card corresponding to the coal mine staff through RFID readers on all communication acquisition integrated terminals; when coal mine workers use the identity identification id card to communicate with the communication and acquisition integrated terminal installed on the optical fiber, judging whether the RFID tag information of the identity identification id card used by the coal mine workers to communicate is the same as the stored RFID tag information of the identity identification id card or not through the communication and acquisition integrated terminal; and if the information is the same, the communication acquisition integrated terminal takes the ID information of the terminal and the RFID label information for communication as communication information.
Optionally, in a second implementation manner of the first aspect of the present invention, the demodulating, by the optical sensing communication base station, the received second pulsed optical signal to obtain the communication information, and analyzing the communication information to obtain the positioning information of the coal mine staff includes: acquiring a modulation parameter corresponding to the communication information through the optical sensing communication base station, and matching a corresponding distributed demodulation strategy by using the modulation parameter; according to the distributed demodulation strategy, performing distributed demodulation on the pulse optical signals received by the optical sensing communication base station to obtain communication information; and searching in a database according to the ID information of the communication acquisition integrated terminal in the communication information, acquiring the position information of the communication acquisition integrated terminal corresponding to the ID information, and using the position information as the positioning information of coal mine workers.
Optionally, in a third implementation manner of the first aspect of the present invention, the optical sensing communication base station includes a light source, a pulse modulator, and a fiber circulator; the coal mine staff is in through the identity identification id card that corresponds with install the communication information that integrative terminal was gathered in communication on the optic fibre with first pulse optical signal on the optic fibre carries out distributed modulation, before obtaining second pulse optical signal, still include: modulating continuous light emitted by the light source into a first pulse light signal through the pulse modulator; injecting the first pulsed light signal into the optical fiber through the fiber optic circulator.
Optionally, in a fourth implementation manner of the first aspect of the present invention, the coal mine scene positioning method further includes: detecting a third pulse optical signal output by the optical fiber in real time; when the sending change of a third pulse optical signal output by the optical fiber is detected, generating corresponding vibration data based on the change of the third pulse optical signal; judging whether the change of the third pulse light signal is generated by knocking of coal mine workers or not based on the vibration data; and if so, positioning the coal mine workers based on the vibration data.
Optionally, in a fifth implementation manner of the first aspect of the present invention, the determining, based on the vibration data, whether the change of the third pulsed light signal is generated by a coal mine worker knocking includes: inputting the vibration data into a preset intelligent early warning model to obtain an early warning type corresponding to the vibration data; and judging whether the change of the third pulse light signal is generated by knocking of coal mine workers or not based on the early warning type.
Optionally, in a sixth implementation manner of the first aspect of the present invention, the positioning the coal mine staff based on the vibration data includes: performing accumulation averaging on the vibration data and the third pulse optical signals; extracting time amplitude signals on each position on the optical fiber according to the accumulated and averaged third pulse signals, and denoising the time amplitude signals by using a filtering and wavelet denoising algorithm; carrying out envelope analysis on the time amplitude signal subjected to denoising processing, extracting a gentle region in the time amplitude signal, carrying out secondary envelope analysis on the gentle region to obtain an upper envelope curve and a lower envelope curve of the gentle region, estimating noise parameters in the vibration data, eliminating the noise parameters from the vibration data, and extracting vibration characteristic information; performing fast Fourier transform on the vibration characteristic information to obtain frequency domain information of the vibration data, and demodulating the vibration data based on the frequency domain information to obtain an influence area of the vibration data; and positioning the coal mine workers based on the influence area.
The invention provides a coal mine scene positioning device, which comprises a monitoring platform, an identity identification (id) card and an optical fiber sensing communication subsystem, wherein the optical fiber sensing communication subsystem comprises an optical sensing communication base station, a communication acquisition integrated terminal and an optical fiber; the coal mine scene positioning device comprises: the modulation module is used for carrying out distributed modulation on communication information of coal mine workers communicating with a communication acquisition integrated terminal installed on the optical fiber through a corresponding identity identification (id) card and a first pulse optical signal on the optical fiber to obtain a second pulse optical signal; the transmission module is used for transmitting the second pulse optical signal to an optical sensing communication base station through the optical fiber; the demodulation module is used for demodulating the received second pulse optical signal through the optical sensing communication base station to obtain the communication information, and analyzing the communication information to obtain the positioning information of the coal mine staff; and the display module is used for displaying the positioning information through the monitoring platform.
Optionally, in a first implementation manner of the second aspect of the present invention, the coal mine scene positioning apparatus further includes an identity recognition module, where the identity recognition module is specifically configured to: acquiring RFID label information of an identity identification (id) card corresponding to the coal mine staff through RFID readers on all communication acquisition integrated terminals; when coal mine workers use the identity identification id card to communicate with the communication and acquisition integrated terminal installed on the optical fiber, judging whether the RFID tag information of the identity identification id card used by the coal mine workers and the stored RFID tag information of the identity identification id card are the same or not through the communication and acquisition integrated terminal; and if the information is the same, the communication acquisition integrated terminal takes the ID information of the terminal and the RFID label information for communication as communication information.
Optionally, in a second implementation manner of the second aspect of the present invention, the modulation module is specifically configured to: acquiring a modulation parameter corresponding to the communication information through the optical sensing communication base station, and matching a corresponding distributed demodulation strategy by using the modulation parameter; according to the distributed demodulation strategy, performing distributed demodulation on the pulse optical signals received by the optical sensing communication base station to obtain communication information; and searching in a database according to the ID information of the communication acquisition integrated terminal in the communication information, acquiring the position information of the communication acquisition integrated terminal corresponding to the ID information, and using the position information as the positioning information of coal mine workers.
Optionally, in a third implementation manner of the second aspect of the present invention, the optical sensing communication base station includes a light source, a pulse modulator, and a fiber circulator; the coal mine scene positioning device further comprises a pulse generation module, wherein the pulse generation module comprises: modulating continuous light emitted by the light source into a first pulse light signal through the pulse modulator; injecting the first pulsed light signal into the optical fiber through the fiber optic circulator.
Optionally, in a fourth implementation manner of the second aspect of the present invention, the coal mine scene positioning apparatus further includes a vibration positioning module, where the vibration positioning module is specifically configured to: detecting the third pulse optical signal output by the optical fiber in real time; when the sending change of a third pulse optical signal output by the optical fiber is detected, generating corresponding vibration data based on the change of the third pulse optical signal; judging whether the change of the third pulse light signal is generated by knocking of coal mine workers or not based on the vibration data; and if so, positioning the coal mine workers based on the vibration data.
Optionally, in a fifth implementation manner of the second aspect of the present invention, the vibration positioning module is further specifically configured to: inputting the vibration data into a preset intelligent early warning model to obtain an early warning type corresponding to the vibration data; and judging whether the change of the third pulse light signal is generated by knocking of coal mine workers or not based on the early warning type.
Optionally, in a sixth implementation manner of the second aspect of the present invention, the positioning the coal mine staff based on the vibration data includes: performing accumulation averaging on the vibration data and the third pulse optical signals; extracting time amplitude signals on each position on the optical fiber according to the accumulated and averaged third pulse signals, and denoising the time amplitude signals by using a filtering and wavelet denoising algorithm; performing envelope analysis on the denoised time amplitude signal, extracting a gentle region in the time amplitude signal, performing secondary envelope analysis on the gentle region to obtain upper and lower envelope curves of the gentle region, estimating noise parameters in the vibration data, eliminating the noise parameters from the vibration data, and extracting vibration characteristic information; performing fast Fourier transform on the vibration characteristic information to obtain frequency domain information of the vibration data, and demodulating the vibration data based on the frequency domain information to obtain an influence area of the vibration data; and positioning the coal mine workers based on the influence area.
A third aspect of the present invention provides a coal mine scene positioning apparatus, comprising: a memory and at least one processor, the memory having instructions stored therein; the at least one processor invokes the instructions in the memory to cause the coal mine scene locating apparatus to perform the steps of the coal mine scene locating method described above.
A fourth aspect of the present invention provides a computer-readable storage medium having stored therein instructions, which, when run on a computer, cause the computer to perform the steps of the coal mine scene localization method described above.
In the technical scheme provided by the invention, the communication information of coal mine workers communicating with a communication acquisition integrated terminal installed on the optical fiber through a corresponding identity identification (id) card is subjected to distributed modulation with the first pulse optical signal on the optical fiber to obtain a second pulse optical signal; sending the second pulse optical signal to an optical sensing communication base station through the optical fiber; demodulating the second pulse optical signal received by the optical sensing communication base station to obtain the positioning information of the coal mine workers; and sending the positioning information obtained by the optical sensing communication base station to the monitoring platform for displaying. Compared with the prior art, the positioning information is acquired through the optical fiber, and the pulse optical signals are transmitted and demodulated after being modulated, so that the monitoring platform can obtain and display the positioning information. The positioning of workers in the mine under the condition of no electricity in the mine is realized when mine accidents occur, and the positioning efficiency of the workers in the mine is improved.
Drawings
Fig. 1 is a schematic diagram of a first embodiment of a coal mine scene positioning method in an embodiment of the invention;
FIG. 2 is a schematic diagram of a second embodiment of a coal mine scene positioning method according to an embodiment of the invention;
FIG. 3 is a schematic diagram of an embodiment of a coal mine scene locating device in an embodiment of the invention;
FIG. 4 is a schematic diagram of another embodiment of a coal mine scene locating device in an embodiment of the invention;
fig. 5 is a schematic diagram of an embodiment of a coal mine scene positioning device in the embodiment of the invention.
Detailed Description
In the technical scheme provided by the invention, the communication information of coal mine workers communicating with a communication acquisition integrated terminal installed on the optical fiber through a corresponding identity identification (id) card is subjected to distributed modulation with the first pulse optical signal on the optical fiber to obtain a second pulse optical signal; sending the second pulse optical signal to an optical sensing communication base station through the optical fiber; demodulating the second pulse optical signal received by the optical sensing communication base station to obtain the positioning information of the coal mine workers; and sending the positioning information obtained by the optical sensing communication base station to the monitoring platform for displaying. Compared with the prior art, the positioning information is acquired through the optical fiber, the pulse optical signals are transmitted and demodulated after being modulated, and therefore the monitoring platform can obtain and display the positioning information. The positioning of workers in the mine under the condition of no electricity in the mine is realized when mine accidents occur, and the positioning efficiency of the workers in the mine is improved.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or described herein. Furthermore, the terms "comprises," "comprising," or "having," and any variations thereof, are intended to cover non-exclusive inclusions, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
For convenience of understanding, a specific flow of the embodiment of the present invention is described below, and referring to fig. 1, a first embodiment of a coal mine scene positioning method in the embodiment of the present invention includes:
101. carrying out distributed modulation on communication information of coal mine workers communicating with a communication acquisition integrated terminal installed on an optical fiber through a corresponding identity identification (id) card and a first pulse optical signal on the optical fiber to obtain a second pulse optical signal;
it is to be understood that the execution subject of the present invention may be a coal mine scene positioning device, and may also be a terminal or a server, which is not limited herein. The embodiment of the present invention is described by taking a server as an execution subject.
In this embodiment, the coal mine scene positioning method is applied to a coal mine scene positioning system, and the coal mine scene positioning system comprises a monitoring platform, an identity identification id card and an optical fiber sensing communication subsystem, wherein the optical fiber sensing communication subsystem comprises an optical sensing communication base station, a communication and acquisition integrated terminal and an optical fiber.
The embodiment of the application can acquire and process related data based on the optical fiber sensing technology. Among them, the optical fiber sensing technology (AI) is a theory, method, technique and application system that simulates, extends and expands human Intelligence using a digital computer or a machine controlled by a digital computer, senses the environment, acquires knowledge and uses the knowledge to obtain the best result.
The optical fiber sensing technology base technologies generally include technologies such as sensors, dedicated optical fiber sensing technology chips, cloud computing, distributed storage, big data processing technologies, operation/interaction systems, and mechatronics. The optical fiber sensing technology mainly comprises a computer vision technology, a robot technology, a biological recognition technology, a voice processing technology, a natural language processing technology, machine learning/deep learning and the like.
In this embodiment, the optical fibers are optical fibers which are laid in each mine passage according to corresponding laying rules and connected together through an optical sensing communication base station, and are used for collecting and transmitting optical signals; the optical sensing communication base station is a signal processing transfer station which is used for connecting an optical fiber, receiving signals sent by the ground and pulse optical signals in the optical fiber and carrying out optical pulse modulation and demodulation processing on the received signals; the communication information refers to a communication signal generated by sensing communication of mine workers through a corresponding identity identification id card directly or indirectly through optical fibers; distributed modulation here means that an external signal field (measured field) modulates light waves in an optical fiber in a certain spatial distribution mode, a modulated signal spectrum band is formed in a certain measurement domain, and the signal spectrum band is modulated and detected (demodulated), so that the size and spatial distribution of the external signal field can be measured; the pulse optical signal refers to an optical discrete pulse signal modulated by an optical sensing communication base station.
In the embodiment, communication information in a mine is acquired through optical fibers connected with each other, and a better implementation manner is that a worker in the mine communicates with a communication and acquisition integrated terminal installed on the optical fibers through an identity identification (id) card, or strikes the optical fibers at the position through a corresponding tool to acquire positioning information in the mine; external vibration data are simulated by selecting the slapping, the 20 Hz square wave and the 200 Hz sine wave in advance, collected signals are subjected to differential accumulation denoising, and finally vibration waveform restoration is realized through a fitting algorithm. Experiments prove that the optical fiber sensing communication system has good frequency response characteristics on vibration data below 1 kHz on an optical fiber with the length of 12 km. And then carrying out distributed modulation on communication information containing positioning information and the pulse light signals in the optical fibers, enabling optical properties of the pulse light signals in the optical fibers such as light intensity, wavelength, frequency, phase, polarization state and the like to be changed by interaction of each optical fiber in the mine space and communication information transmitted to the optical fibers from the outside, obtaining the pulse light signals generated by the communication signals generated in the mine space distribution and carrying out distributed modulation on the pulse light signals in the optical fibers, and transmitting the modulated pulse light signals to the optical sensing communication base station.
102. Sending the second pulse optical signal to an optical sensing communication base station through an optical fiber;
103. demodulating the received second pulse optical signal through the optical sensing communication base station to obtain communication information, and analyzing the communication information to obtain positioning information of coal mine workers;
in the present embodiment, the pulsed light signal received by the optical sensing communication base station here may be a backward scattered light or a forward scattered light generated based on rayleigh scattering, raman scattering, or brillouin scattering, which is returned to the optical sensing communication base station to receive a corresponding return light signal.
In practical application, a light sensing communication base station is used for receiving pulse light signals which are generated and returned by a corresponding modulation principle, and the received pulse light signals and local oscillator light signals in the light sensing communication base station are subjected to optical interference to obtain target interference light signals; and then carrying out frequency conversion and analog-to-digital conversion on the target interference optical signal, carrying out differential accumulation denoising on the signal, finally realizing vibration waveform reduction through a fitting algorithm to obtain a corresponding target electric signal, and identifying the target electric information by adopting a preset signal identification algorithm to obtain corresponding positioning information.
104. And displaying the positioning information through the monitoring platform.
In this embodiment, the processed positioning information is sent to the monitoring platform, and the monitoring platform performs analysis according to the received positioning information to generate corresponding feedback information. The feedback information can carry out emergency communication or work indication on mine workers, can regulate and control corresponding control equipment in a mine, and can adjust the mine environment and mine production.
In the embodiment, except for carrying out communication positioning with an identity identification id card corresponding to a coal mine worker through a communication acquisition integrated terminal, when a mine disaster occurs and the coal mine worker does not carry the identity identification id card, the coal mine worker can transmit positioning information of the coal mine worker in a mode of knocking an optical fiber, and a third pulse optical signal output by the optical fiber is mainly detected in real time through an optical sensing communication base station; when the sending change of a third pulse optical signal output by the optical fiber is detected, generating corresponding vibration data based on the change of the third pulse optical signal; judging whether the change of the third pulse light signal is generated by knocking of coal mine workers or not based on the vibration data; and if so, positioning the coal mine workers based on the vibration data. Judging whether the change of the third pulse light signal is generated by knocking by coal mine workers or not based on the vibration data, wherein the early warning type corresponding to the vibration data is obtained mainly by inputting the vibration data into a preset intelligent early warning model; and judging whether the change of the third pulse light signal is generated by knocking of coal mine workers or not based on the early warning type.
Specifically, the coal mine staff are positioned based on the vibration data mainly by performing accumulation averaging on the vibration data and the third pulse light signals; extracting time amplitude signals on each position on the optical fiber according to the accumulated and averaged third pulse signals, and denoising the time amplitude signals by using a filtering and wavelet denoising algorithm; performing envelope analysis on the denoised time amplitude signal, extracting a gentle region in the time amplitude signal, performing secondary envelope analysis on the gentle region to obtain upper and lower envelope curves of the gentle region, estimating noise parameters in the vibration data, eliminating the noise parameters from the vibration data, and extracting vibration characteristic information; performing fast Fourier transform on the vibration characteristic information to obtain frequency domain information of the vibration data, and demodulating the vibration data based on the frequency domain information to obtain an influence area of the vibration data; and positioning the coal mine workers based on the influence area.
In the embodiment of the invention, the communication information of the coal mine staff communicating with the communication acquisition integrated terminal installed on the optical fiber through the corresponding identity identification (id) card is subjected to distributed modulation with the first pulse optical signal on the optical fiber to obtain a second pulse optical signal; sending the second pulse optical signal to an optical sensing communication base station through the optical fiber; demodulating the second pulse optical signal received by the optical sensing communication base station to obtain the positioning information of the coal mine workers; and sending the positioning information obtained by the optical sensing communication base station to the monitoring platform for displaying. According to the monitoring platform, the positioning information is acquired through the optical fiber, and the pulse optical signals are transmitted and demodulated after being modulated, so that the monitoring platform can obtain and display the positioning information. The positioning of workers in the mine under the condition of no electricity in the mine is realized when mine accidents occur, and the positioning efficiency of the workers in the mine is improved.
Referring to fig. 2, a second embodiment of the method for locating a coal mine scene according to the embodiment of the present invention includes:
201. acquiring RFID label information of an identity identification id card corresponding to a coal mine worker through RFID readers on all communication acquisition integrated terminals;
202. when coal mine workers use the identity identification id card to communicate with a communication and acquisition integrated terminal installed on the optical fiber, judging whether the RFID tag information of the identity identification id card used by the coal mine workers and the stored RFID tag information of the identity identification id card are the same or not through the communication and acquisition integrated terminal;
in the present embodiment, the ID card is a known ID card, that is, an ID card that can be recognized by an RFID reader on the communication acquisition-integrated terminal. The embodiment of the invention can acquire the ID information of the known ID card by various different methods, such as scanning an ID card chip by Radio Frequency Identification (RFID) to acquire the ID information of the ID card, and connecting with the mobile equipment to acquire the ID information transmitted by the mobile equipment. In this embodiment, RFID is mainly used, wherein RFID is a radio frequency identification technology and can identify an outgoing frequency signal.
Specifically, when the communication and acquisition integrated terminal is close to the identification id card, the radio frequency signal generated by the identification id card chip can be sensed through the RFID, and the radio frequency signal is demodulated and decoded to obtain the RFID label information in the preset format.
Specifically, since the radio frequency signal is a modulated electric wave with a certain transmission frequency, the radio frequency signal generated by the id card chip is a modulated signal carrying RFID tag information (the RFID tag information is encoded RFID tag information). Therefore, when the communication and acquisition integrated terminal senses a radio frequency signal generated by the id card chip through the RFID technology, the radio frequency signal needs to be demodulated to obtain RFID tag information before modulation and after encoding, and then the encoded RFID tag information is decoded to obtain the RFID tag information before encoding (i.e. the original RFID tag information).
203. If the information is the same, the ID information of the terminal and the RFID label information for communication are used as communication information through the communication acquisition integrated terminal;
in this embodiment, the identity that colliery staff corresponds is judged through the communication of the integrative terminal of communication collection and identification ID card, and then carries out the accurate positioning to colliery staff, not only can confirm colliery staff's position through modulation demodulation pulsed light signal, can also confirm colliery staff's identity according to the ID information of identification ID card.
204. Carrying out distributed modulation on communication information of coal mine workers communicating with a communication acquisition integrated terminal installed on an optical fiber through a corresponding identity identification (id) card and a first pulse light signal on the optical fiber to obtain a second pulse light signal;
in this embodiment, the acquired communication information is distributed-modulated by using the communication acquisition integrated terminal to generate corresponding communication information and the pulsed light signal in the optical fiber, and the optical property of the pulsed light signal in the optical fiber is changed by using the communication acquisition integrated terminal according to the communication information, so that the second pulsed light signal is obtained mainly by determining a plurality of physical state quantities of the communication information that physically change the optical fiber, and modulating corresponding pulse parameters in the first pulsed light signal by using the physical state quantities.
In the embodiment, the optical sensing communication base station comprises a light source, a pulse modulator and a fiber circulator; the coal mine staff is through the identity identification id card that corresponds with installing the communication information that integrative terminal was gathered in communication on the optic fibre carries out the communication with first pulse optical signal on the optic fibre carries out distributed modulation, before obtaining second pulse optical signal, still includes: modulating continuous light emitted by the light source into a pulse light signal through the pulse modulator; injecting the pulsed light signal into the optical fiber through the fiber optic circulator.
In this embodiment, the pulse parameter refers to an optical property of light, such as intensity, wavelength, frequency, phase, polarization state, and the like.
In practical applications, the physical state quantities corresponding to the identified communication information modulate the corresponding pulse parameters in the pulse optical signal, and a preferred implementation manner here is to modulate the intensity change of the transmitted optical pulse signal if the physical state quantities are strain, modulate the frequency of the transmitted optical pulse signal if the physical state quantities are vibration, and modulate the wavelength of the transmitted optical pulse signal if the physical state quantities are wavelength, so as to obtain the second pulse optical signal.
The physical state quantity refers to a corresponding physical state quantity in the environmental information, such as state quantities of an electric field, a magnetic field, strain, temperature, and the like.
205. Acquiring modulation parameters corresponding to communication information through an optical sensing communication base station, and matching corresponding distributed demodulation strategies by using the modulation parameters;
206. according to a distributed demodulation strategy, carrying out distributed demodulation on the pulse optical signals received by the optical sensing communication base station to obtain communication information;
in this embodiment, the received pulsed optical signal is subjected to distributed modulation according to the matched distributed demodulation strategy. The method comprises the steps of modulating a pulse light signal returned by each optical cable by using a distributed demodulation strategy, carrying out optical interference on the modulated pulse light signal and a local oscillator light signal of an optical sensing communication base station, carrying out frequency conversion on the interfered light signal by using a corresponding distributed demodulation strategy, carrying out frequency sweep processing by using a corresponding frequency sweep device, carrying out analog-to-digital conversion and signal identification processing on the processed signal, thereby obtaining corresponding communication information, retrieving the ID information of a communication acquisition integrated terminal in a database according to the ID information of the communication acquisition integrated terminal in the communication information, obtaining the position information of the communication acquisition integrated terminal corresponding to the ID information, and using the position information as the positioning information of coal mine workers.
207. Searching in a database according to the ID information of the communication acquisition integrated terminal in the communication information, acquiring the position information of the communication acquisition integrated terminal corresponding to the ID information, and using the position information as the positioning information of coal mine workers;
208. and displaying the positioning information through the monitoring platform.
On the basis of the previous embodiment, the process of demodulating the received second pulse optical signal through the optical sensing communication base station to obtain the communication information, analyzing the communication information to obtain the positioning information of the coal mine workers is described in detail, the modulation parameters corresponding to the communication information are obtained through the optical sensing communication base station, and the corresponding distributed demodulation strategy is matched by using the modulation parameters; according to a distributed demodulation strategy, carrying out distributed demodulation on the pulse optical signals received by the optical sensing communication base station to obtain communication information; and searching in a database according to the ID information of the communication acquisition integrated terminal in the communication information, acquiring the position information of the communication acquisition integrated terminal corresponding to the ID information, and using the position information as the positioning information of the coal mine workers. Compared with the prior art, the positioning information is acquired through the optical fiber, and the pulse optical signals are transmitted and demodulated after being modulated, so that the monitoring platform can obtain and display the positioning information. The positioning of workers in the mine under the condition of no electricity in the mine is realized when mine accidents occur, and the positioning efficiency of the workers in the mine is improved.
The coal mine scene positioning method in the embodiment of the invention is described above, and the coal mine scene positioning device in the embodiment of the invention is described below, wherein the coal mine scene positioning device is applied to a coal mine scene positioning system, the coal mine scene positioning system comprises a monitoring platform, an identity identification id card and an optical fiber sensing communication subsystem, and the optical fiber sensing communication subsystem comprises an optical sensing communication base station, a communication acquisition integrated terminal and an optical fiber.
Referring to fig. 3, an embodiment of a coal mine scene positioning apparatus according to the embodiment of the present invention includes:
the modulation module 301 is configured to perform distributed modulation on communication information, which is obtained by a coal mine worker communicating with a communication acquisition integrated terminal installed on the optical fiber through a corresponding identification id card, and a first pulse optical signal on the optical fiber to obtain a second pulse optical signal;
a transmission module 302, configured to send the second pulsed light signal to an optical sensing communication base station through the optical fiber;
the demodulation module 303 demodulates the received second pulse optical signal through the optical sensing communication base station to obtain the communication information, and analyzes the communication information to obtain the positioning information of the coal mine staff;
a display module 304, configured to display the positioning information through the monitoring platform.
In the embodiment of the invention, the coal mine scene positioning device operates the coal mine scene positioning method, and performs distributed modulation on the communication information of coal mine workers communicating with a communication acquisition integrated terminal installed on the optical fiber through a corresponding identity identification (id) card and a first pulse optical signal on the optical fiber to obtain a second pulse optical signal; sending the second pulse optical signal to an optical sensing communication base station through the optical fiber; demodulating the second pulse optical signal received by the optical sensing communication base station to obtain the positioning information of the coal mine workers; and sending the positioning information obtained by the optical sensing communication base station to the monitoring platform for displaying. According to the monitoring platform, the positioning information is acquired through the optical fiber, and the pulse optical signals are transmitted and demodulated after being modulated, so that the monitoring platform can obtain and display the positioning information. The positioning of workers in the mine under the condition of no electricity in the mine is realized when mine accidents occur, and the positioning efficiency of the workers in the mine is improved.
Referring to fig. 4, another embodiment of the coal mine scene positioning apparatus according to the embodiment of the present invention includes:
the modulation module 301 is configured to perform distributed modulation on communication information, which is obtained by a coal mine worker communicating with a communication acquisition integrated terminal installed on the optical fiber through a corresponding identification id card, and a first pulse optical signal on the optical fiber to obtain a second pulse optical signal;
a transmission module 302, configured to send the second pulsed light signal to an optical sensing communication base station through the optical fiber;
the demodulation module 303 demodulates the received second pulse optical signal through the optical sensing communication base station to obtain the communication information, and analyzes the communication information to obtain the positioning information of the coal mine staff;
a display module 304, configured to display the positioning information through the monitoring platform.
In this embodiment, the coal mine scene positioning apparatus further includes an identity recognition module 305, where the identity recognition module 305 is specifically configured to: acquiring RFID label information of an identity identification id card corresponding to the coal mine workers through RFID readers on all communication acquisition integrated terminals; when coal mine workers use the identity identification id card to communicate with the communication and acquisition integrated terminal installed on the optical fiber, judging whether the RFID tag information of the identity identification id card used by the coal mine workers and the stored RFID tag information of the identity identification id card are the same or not through the communication and acquisition integrated terminal; and if the information is the same, the communication acquisition integrated terminal takes the ID information of the terminal and the RFID label information for communication as communication information.
In this embodiment, the modulation module 301 is specifically configured to: acquiring a modulation parameter corresponding to the communication information through the optical sensing communication base station, and matching a corresponding distributed demodulation strategy by using the modulation parameter; according to the distributed demodulation strategy, performing distributed demodulation on the pulse optical signals received by the optical sensing communication base station to obtain communication information; and searching in a database according to the ID information of the communication acquisition integrated terminal in the communication information, acquiring the position information of the communication acquisition integrated terminal corresponding to the ID information, and using the position information as the positioning information of coal mine workers.
In the embodiment, the optical sensing communication base station comprises a light source, a pulse modulator and a fiber circulator; the coal mine scene positioning device further comprises a pulse generation module, wherein the pulse generation module 306 comprises: modulating continuous light emitted by the light source into a first pulse light signal through the pulse modulator; injecting the first pulsed light signal into the optical fiber through the fiber optic circulator.
In this embodiment, the coal mine scene positioning apparatus further includes a vibration positioning module 307, where the vibration positioning module 307 is specifically configured to: detecting a third pulse optical signal output by the optical fiber in real time; when the sending change of a third pulse optical signal output by the optical fiber is detected, generating corresponding vibration data based on the change of the third pulse optical signal; judging whether the change of the third pulse light signal is generated by knocking of coal mine workers or not based on the vibration data; and if so, positioning the coal mine workers based on the vibration data.
In this embodiment, the vibration positioning module 307 is further specifically configured to: inputting the vibration data into a preset intelligent early warning model to obtain an early warning type corresponding to the vibration data; and judging whether the change of the third pulse light signal is generated by knocking of coal mine workers or not based on the early warning type.
In this embodiment, the positioning the coal mine staff based on the vibration data includes: performing accumulation averaging on the vibration data and the third pulse optical signals; extracting time amplitude signals on each position on the optical fiber according to the accumulated and averaged third pulse signals, and denoising the time amplitude signals by using a filtering and wavelet denoising algorithm; carrying out envelope analysis on the time amplitude signal subjected to denoising processing, extracting a gentle region in the time amplitude signal, carrying out secondary envelope analysis on the gentle region to obtain an upper envelope curve and a lower envelope curve of the gentle region, estimating noise parameters in the vibration data, eliminating the noise parameters from the vibration data, and extracting vibration characteristic information; performing fast Fourier transform on the vibration characteristic information to obtain frequency domain information of the vibration data, and demodulating the vibration data based on the frequency domain information to obtain an influence area of the vibration data; and positioning the coal mine workers based on the influence area.
On the basis of the previous embodiment, the specific functions of each module and the unit constitution of part of the modules are described in detail, and the positioning information is acquired through the optical fiber to modulate the pulse optical signals and then transmit and demodulate the pulse optical signals, so that the monitoring platform can obtain and display the positioning information. The positioning of workers in the mine under the condition of no electricity in the mine is realized when mine accidents occur, and the positioning efficiency of the workers in the mine is improved.
Fig. 3 and 4 describe the coal mine scene positioning device in the embodiment of the present invention in detail from the perspective of the modular functional entity, and the coal mine scene positioning device in the embodiment of the present invention is described in detail from the perspective of hardware processing.
Fig. 5 is a schematic structural diagram of a coal mine scene locating apparatus according to an embodiment of the present invention, where the coal mine scene locating apparatus 500 may have relatively large differences due to different configurations or performances, and may include one or more processors (CPUs) 510 (e.g., one or more processors) and a memory 520, and one or more storage media 530 (e.g., one or more mass storage devices) storing applications 533 or data 532. Memory 520 and storage media 530 may be, among other things, transient or persistent storage. The program stored on the storage medium 530 may include one or more modules (not shown), each of which may include a series of instructions operating on the coal mine scene locating apparatus 500. Further, the processor 510 may be configured to communicate with the storage medium 530 to execute a series of instruction operations in the storage medium 530 on the coal mine scene locating apparatus 500.
The coal mine scene locating apparatus 500 may also include one or more power supplies 540, one or more wired or wireless network interfaces 550, one or more input-output interfaces 560, and/or one or more operating systems 531, such as Windows service, Mac OS X, Unix, Linux, FreeBSD, and the like. It will be appreciated by those skilled in the art that the coal mine scene locating apparatus configuration shown in fig. 5 does not constitute a limitation of the coal mine scene locating apparatus and may include more or fewer components than those shown, or some components in combination, or a different arrangement of components.
The invention also provides a coal mine scene positioning device, which comprises a memory and a processor, wherein the memory stores computer readable instructions, and the computer readable instructions, when executed by the processor, enable the processor to execute the steps of the coal mine scene positioning method in the embodiments.
The present invention also provides a computer-readable storage medium, which may be a non-volatile computer-readable storage medium, or a volatile computer-readable storage medium, having stored therein instructions, which, when executed on a computer, cause the computer to perform the steps of the coal mine scene locating method.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The application is operational with numerous general purpose or special purpose computing system environments or configurations. For example: personal computers, server computers, hand-held or portable devices, tablet-type devices, multiprocessor systems, microprocessor-based systems, set top boxes, programmable consumer electronics, network PCs, minicomputers, mainframe computers, distributed computing environments that include any of the above systems or devices, and the like. The application may be described in the general context of computer-executable instructions, such as program modules, being executed by a computer. Generally, program modules include routines, programs, objects, components, data structures, etc. that perform particular tasks or implement particular abstract data types. The application may also be practiced in distributed computing environments where tasks are performed by remote processing devices that are linked through a communications network. In a distributed computing environment, program modules may be located in both local and remote computer storage media including memory storage devices.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A coal mine scene positioning method is applied to a coal mine scene positioning system and is characterized in that the coal mine scene positioning system comprises a monitoring platform, an identity identification (id) card and an optical fiber sensing communication subsystem, wherein the optical fiber sensing communication subsystem comprises an optical sensing communication base station, a communication and acquisition integrated terminal and an optical fiber;
the coal mine scene positioning method comprises the following steps:
carrying out distributed modulation on communication information of coal mine workers communicating with a communication acquisition integrated terminal installed on the optical fiber through a corresponding identity identification (id) card and a first pulse optical signal on the optical fiber to obtain a second pulse optical signal;
sending the second pulse optical signal to an optical sensing communication base station through the optical fiber;
demodulating the received second pulse optical signal through the optical sensing communication base station to obtain the communication information, and analyzing the communication information to obtain the positioning information of the coal mine workers;
and displaying the positioning information through the monitoring platform.
2. The coal mine scene positioning method according to claim 1, wherein before the performing distributed modulation on the communication information of the coal mine staff communicating with the communication acquisition integrated terminal installed on the optical fiber through the corresponding identification id card and the first pulsed light signal on the optical fiber to obtain the second pulsed light signal, the method further comprises:
acquiring RFID label information of an identity identification (id) card corresponding to the coal mine staff through RFID readers on all communication acquisition integrated terminals;
when coal mine workers use the identity identification id card to communicate with the communication and acquisition integrated terminal installed on the optical fiber, judging whether the RFID tag information of the identity identification id card used by the coal mine workers and the stored RFID tag information of the identity identification id card are the same or not through the communication and acquisition integrated terminal;
and if the information is the same, the communication acquisition integrated terminal takes the ID information of the terminal and the RFID label information for communication as communication information.
3. The coal mine scene positioning method according to claim 2, wherein the demodulating, by the optical sensing communication base station, the received second pulsed optical signal to obtain the communication information, and analyzing the communication information to obtain the positioning information of the coal mine staff includes:
acquiring a modulation parameter corresponding to the communication information through the optical sensing communication base station, and matching a corresponding distributed demodulation strategy by using the modulation parameter;
according to the distributed demodulation strategy, performing distributed demodulation on the pulse optical signals received by the optical sensing communication base station to obtain communication information;
and searching in a database according to the ID information of the communication acquisition integrated terminal in the communication information, acquiring the position information of the communication acquisition integrated terminal corresponding to the ID information, and using the position information as the positioning information of coal mine workers.
4. The coal mine scene positioning method of claim 1, wherein the light sensing communication base station comprises a light source, a pulse modulator and a fiber optic circulator;
the coal mine staff is in through the identity identification id card that corresponds with install the communication information that integrative terminal was gathered in communication on the optic fibre with first pulse optical signal on the optic fibre carries out distributed modulation, before obtaining second pulse optical signal, still include:
modulating continuous light emitted by the light source into a first pulse light signal through the pulse modulator;
injecting the first pulsed light signal into the optical fiber through the fiber optic circulator.
5. The coal mine scene positioning method of claim 1, further comprising:
detecting a third pulse optical signal output by the optical fiber in real time;
when the sending change of a third pulse optical signal output by the optical fiber is detected, generating corresponding vibration data based on the change of the third pulse optical signal;
judging whether the change of the third pulse light signal is generated by knocking of coal mine workers or not based on the vibration data;
and if so, positioning the coal mine workers based on the vibration data.
6. The coal mine scene positioning method according to claim 5, wherein the judging whether the change of the third pulse light signal is generated by coal mine staff knocking or not based on the vibration data comprises:
inputting the vibration data into a preset intelligent early warning model to obtain an early warning type corresponding to the vibration data;
and judging whether the change of the third pulse light signal is generated by knocking of coal mine workers or not based on the early warning type.
7. The coal mine scene locating method of claim 5 or 6, wherein the locating the coal mine worker based on the vibration data comprises:
performing accumulation averaging on the vibration data and the third pulse optical signals;
extracting time amplitude signals on each position on the optical fiber according to the accumulated and averaged third pulse signals, and denoising the time amplitude signals by using a filtering and wavelet denoising algorithm;
carrying out envelope analysis on the time amplitude signal subjected to denoising processing, extracting a gentle region in the time amplitude signal, carrying out secondary envelope analysis on the gentle region to obtain an upper envelope curve and a lower envelope curve of the gentle region, estimating noise parameters in the vibration data, eliminating the noise parameters from the vibration data, and extracting vibration characteristic information;
performing fast Fourier transform on the vibration characteristic information to obtain frequency domain information of the vibration data, and demodulating the vibration data based on the frequency domain information to obtain an influence area of the vibration data;
and positioning the coal mine workers based on the influence area.
8. A coal mine scene positioning device is applied to a coal mine scene positioning system and is characterized in that the coal mine scene positioning system comprises a monitoring platform, an identity identification (id) card and an optical fiber sensing communication subsystem, wherein the optical fiber sensing communication subsystem comprises an optical sensing communication base station, a communication and acquisition integrated terminal and an optical fiber;
the coal mine scene positioning device comprises:
the modulation module is used for carrying out distributed modulation on communication information of coal mine workers communicating with a communication acquisition integrated terminal installed on the optical fiber through a corresponding identity identification (id) card and a first pulse optical signal on the optical fiber to obtain a second pulse optical signal;
the transmission module is used for transmitting the second pulse optical signal to an optical sensing communication base station through the optical fiber;
the demodulation module is used for demodulating the received second pulse optical signal through the optical sensing communication base station to obtain the communication information, and analyzing the communication information to obtain the positioning information of the coal mine staff;
and the display module is used for displaying the positioning information through the monitoring platform.
9. A coal mine scene positioning apparatus, comprising: a memory and at least one processor, the memory having instructions stored therein;
the at least one processor invokes the instructions in the memory to cause the coal mine scene locating apparatus to perform the steps of the coal mine scene locating method of any one of claims 1-7.
10. A computer readable storage medium having instructions stored thereon, wherein the instructions, when executed by a processor, perform the steps of the coal mine scenario localization method of any one of claims 1-7.
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