CN110481600B - Unmanned autonomous comprehensive alarm system - Google Patents
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- CN110481600B CN110481600B CN201910733372.8A CN201910733372A CN110481600B CN 110481600 B CN110481600 B CN 110481600B CN 201910733372 A CN201910733372 A CN 201910733372A CN 110481600 B CN110481600 B CN 110481600B
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- 239000013307 optical fiber Substances 0.000 claims abstract description 84
- 230000007246 mechanism Effects 0.000 claims abstract description 59
- 238000004458 analytical method Methods 0.000 claims abstract description 35
- 230000009545 invasion Effects 0.000 claims abstract description 15
- 238000012545 processing Methods 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 7
- 230000008569 process Effects 0.000 claims abstract description 7
- 230000007123 defense Effects 0.000 claims description 48
- 230000002159 abnormal effect Effects 0.000 claims description 20
- 230000003287 optical effect Effects 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 claims description 10
- 238000004364 calculation method Methods 0.000 claims description 5
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- 239000002184 metal Substances 0.000 claims description 4
- 230000009466 transformation Effects 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims description 2
- 230000000007 visual effect Effects 0.000 claims description 2
- 238000005452 bending Methods 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 abstract description 9
- 239000000835 fiber Substances 0.000 description 4
- 241000282414 Homo sapiens Species 0.000 description 3
- 238000013528 artificial neural network Methods 0.000 description 3
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
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- Alarm Systems (AREA)
- Burglar Alarm Systems (AREA)
Abstract
The invention discloses an unmanned autonomous comprehensive alarm system which is used for warning a railway perimeter and comprises an acquisition device, an analysis device and a user terminal, wherein the acquisition device comprises an optical fiber mechanism, and the optical fiber mechanism is arranged on a railway fence and is used for identifying an invasion target in the railway perimeter; the analysis device processes the information acquired by the optical fiber mechanism and utilizes an M-Z interference principle to identify an optical fiber vibration signal invaded by the fence so as to determine an invaded object; and then feeding back the intrusion object determined by the analysis device to the user terminal, and monitoring and corresponding preset processing by the user terminal according to the intrusion object.
Description
Technical Field
The invention belongs to the technical field of railway perimeter intrusion monitoring, and particularly relates to an unmanned autonomous comprehensive alarm system.
Background
In recent years, the high-speed railways in China have undergone a rapid development period, the general mileage is more than 2 ten thousand kilometers, and the general mileage is more than 60% of the world operation mileage, so that the technology is introduced, absorbed and forms a unique autonomous industrial system, and the high-speed railways become a bright Chinese business card in the international high-tech field, and are also an important ring for the development of Chinese strategy and national revival.
The high-speed railway is characterized by high operation speed and high safety standard, but the perimeter safety precaution mainly depends on physical isolation measures and manpower patrol, has no mature technical precaution applied to perimeter safety assurance of the high-speed railway, has the events of personnel invasion, facility damage, ticket escape and the like, and brings serious potential safety hazards to the safety operation of the high-speed railway and the strategy of going out of the high-speed railway.
Disclosure of Invention
In view of the above, the invention provides an unmanned autonomous comprehensive alarm system for warning a railway perimeter, which comprises a collecting device, an analyzing device and a user terminal, wherein the collecting device comprises an optical fiber mechanism, and the optical fiber mechanism is arranged on a railway fence and is used for identifying an invasion target in the railway perimeter; the analysis device processes the information acquired by the optical fiber mechanism and utilizes an M-Z interference principle to identify an optical fiber vibration signal invaded by the fence so as to determine an invaded object; and then feeding back the intrusion object determined by the analysis device to the user terminal, and monitoring and corresponding preset processing by the user terminal according to the intrusion object.
After the technical scheme is adopted, since the alarm system comprises the acquisition device, the acquisition device comprises the optical fiber mechanism, and the M-Z interference principle is utilized to identify the invasion optical fiber vibration signal of the fence so as to determine the invasion object, the invasion object in the railway perimeter can be accurately identified, the identification process of the invasion object in the railway perimeter is more targeted, the working efficiency of the alarm system is improved, and the system is ensured to have market leading competitiveness.
Preferably, the analysis device further includes:
The optical fiber vibration sensing system comprises an abnormal vibration block acquisition mechanism, an optical fiber vibration block analysis mechanism and a control unit, wherein the optical fiber mechanism is a distributed optical fiber vibration sensing system, the abnormal vibration block analysis mechanism performs Fourier transform processing on optical fiber vibration signals acquired by the distributed optical fiber vibration sensing system, and a preset value of the optical fiber vibration signals is obtained after the Fourier transform is calculated; and acquiring an abnormal vibration block with abnormal vibration of the optical fiber, wherein the abnormal vibration block is larger than a preset value threshold value parameter by setting a preset value threshold value.
Preferably, the calculation method for obtaining the preset value Z n of the optical fiber vibration signal X n(m) after fourier transformation includes:
where sgn [ ] is a sign function, namely:
Preferably, the optical fiber mechanism comprises a defense area sensing assembly and a vibration data acquisition assembly, and the defense area sensing assembly is connected to the analysis device through the vibration data acquisition assembly.
Preferably, the optical fiber mechanism comprises a defense area module and a sensing optical cable connected with the defense area module, and the defense area module and the sensing optical cable are both arranged on a fence at the periphery of the defense area.
Preferably, the defense area module comprises a defense area head end module and a defense area terminal module, and the positions of the defense area head end module and the defense area terminal module correspond to each other.
Preferably, the first coupler is arranged on the defense area head end module, and the second coupler and the reflecting mirror are arranged on the defense area terminal module; after the light beam sequentially passes through the first coupler and the second coupler, the light beam returns to the first coupler through the reflecting mirror.
Preferably, the alarm system further comprises:
And the acquisition device, the analysis device and the user terminal are all connected to the transmission power supply equipment.
Preferably, the alarm system further comprises:
The lightning protection grounding equipment is used for grounding the transmission power supply equipment.
Preferably, the user terminal is one or more of a client computer, a display device, an audible and visual alarm, a short message gateway and a megaphone microphone.
Drawings
Fig. 1 is a schematic flow chart of an unmanned autonomous integrated alarm system according to a preferred embodiment of the invention.
Fig. 2 is a schematic flow chart of an unmanned autonomous integrated alarm system according to a preferred embodiment of the invention.
Fig. 3 is a schematic diagram illustrating installation of a vibration fiber and a camera of an unmanned autonomous integrated alarm system according to a preferred embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Some embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following embodiments and features of the embodiments may be combined with each other without conflict.
The invention relates to an alarm system, which belongs to the technology of railway perimeter guard, mainly aims at the requirement of high-speed railway perimeter safety, and timely anticipates the possible accident situation and various burst hidden dangers in the control area, improves the effective assessment of risk, and takes perimeter protection as the key precaution target of the scheme. The reasonable configuration perimeter safety precaution effectively manages and controls, realizes the scientific management of perimeter precaution, intelligent analysis, improves the digital perimeter comprehensive precaution level of border line.
The unmanned autonomous comprehensive alarm system provided by the invention can provide reliable preventive guarantee for the perimeter of the high-speed railway, prevent illegal personnel from illegally submerging by utilizing blind areas with complex characteristics of landforms and landforms, and prevent and stop invasion of target objects by adopting high coverage rate.
Once an intrusion object occurs, an alarm signal can be transmitted to a user terminal at the first time, and the user terminal monitors and performs corresponding preset processing according to the intrusion object, wherein the preset processing comprises sending the alarm signal and connecting equipment such as a camera, a broadcast, illumination and the like on the scene in parallel to monitor and process the scene in multiple directions, so that a security system of the perimeter of the high-speed railway is perfected and established.
As shown in fig. 1 to 3, the unmanned autonomous comprehensive alarm system in the embodiment of the invention is used for warning the railway perimeter and comprises an acquisition device, an analysis device 20 and a user terminal 30, wherein the acquisition device comprises an optical fiber mechanism 12 for sensing the warning of the intrusion of a defense area and a camera shooting mechanism 11 for real-time data acquisition, the optical fiber mechanism 12 is arranged on a railway fence, and the camera shooting mechanism 12 is arranged in the fence (as shown in fig. 3) and is used for identifying an intrusion target in the railway perimeter. In this embodiment, the analysis device is configured to process information collected by the optical fiber mechanism 11 and the camera mechanism 12, where the optical fiber mechanism 11 uses an M-Z interference principle to identify an optical fiber vibration signal generated by an intrusion target of a fence, and the camera 12 determines an intrusion object according to a captured picture or video and a preset face recognition neural network; and then feeding the intrusion object determined by the analysis device 20 back to the user terminal 30, and the user terminal 30 monitors the intrusion object and adopts corresponding preset processing.
Specifically, the user terminal may be one or several of a client computer, a display device, an acousto-optic alarm, a short message gateway or a microphone for shouting, where the acousto-optic alarm, the display device, the acousto-optic alarm, the short message gateway or the microphone for shouting is connected with the analysis device 20, and when the user terminal receives the alarm information sent by the optical fiber mechanism 12 or the camera mechanism 11, the user terminal automatically controls to switch on the acousto-optic alarm power supply, send an acousto-optic prompt, or automatically connect the short message gateway to send a short message reminding message to a designated number.
It will be appreciated that when an abnormal state occurs in the railway fence on the perimeter of the high-speed railway, the optical fiber mechanism 12 includes a signal acquisition module, an optical cable module and a defense area division packet module, which are composed of a plurality of collectors, the collectors adopt a switching value single defense area acquisition device TCNET-CJ-1001, the defense area division packet adopts a defense area division packet with the model number TCNET-CJ-1500, and the vibration sensing optical cable is a black armored optical cable.
When the optical fiber mechanism 12 on the periphery of the high-speed railway triggers an alarm, the analysis device 20 judges a specific alarm defense area, and shoots videos or pictures on the alarm defense area by combining the automatic focusing principle of the camera shooting mechanism 12, wherein the videos or pictures are processed according to a preset face recognition neural network, so that non-invasive phantom (car lights, car bodies, light shadows, facilities, rain and snow, insects and vegetation) can be effectively filtered, frame-indicated alarms of specific targets (personnel, elephants, automobiles, bison and rail surface foreign matters) can be captured, a plurality of targets can be simultaneously frame-indicated, the sizes, positions and the similarity of all targets are calculated, the probability of false alarm is effectively reduced, the working intensity of personnel is reduced, and the working efficiency is improved.
Of course, when the analysis device 20 obtains the information sent by the optical fiber mechanism 12, the weather factors such as wind speed, rainfall, snow depth and the like are comprehensively considered, the information sent by the optical fiber mechanism 12 is correspondingly processed and corrected, the monitoring data generated due to the extreme weather factors are filtered, and the accuracy of man-made intrusion alarm is improved.
In an alternative embodiment, the analysis device 20 further includes an abnormal vibration mass acquisition mechanism, where the optical fiber mechanism 12 is a distributed optical fiber vibration sensing system, where the distributed optical fiber vibration sensing system uses a continuous distributed scattering effect in an optical fiber, and can perform distributed sensing and accurate positioning on external disturbance along the optical fiber, so that the system can perform omnibearing continuous monitoring like a human sensing nervous system, and thus has irreplaceable advantages in terms of sensing detection distance, event accurate positioning, concealment, environmental adaptability, and the like.
In this embodiment, the abnormal vibration block analysis mechanism may perform feature extraction on the optical fiber vibration signal acquired by the distributed optical fiber vibration sensing system, where the time domain analysis of the optical fiber vibration signal refers to analysis of basic parameters such as amplitude, period, and phase of the optical fiber vibration signal in a certain time period. Under the general condition, when an optical fiber vibration signal in an alarm system is not interfered, the signal is in a stable state for a long time, and after an intrusion event occurs, the amplitude of the signal can be subjected to larger jump, so that whether the optical fiber vibration signal is disturbed or not can be determined according to a set amplitude threshold value, wherein the root mean square value of the signal can well reflect the energy change of the vibration signal, and can reflect the vibration amplitude to a certain extent, and the root mean square calculation formula is as follows:
Wherein Xrms represents the root of the signal square; n is the number of elements in the input sequence X.
The root mean square can only reflect the energy of signal change, but can not reflect the type of vibration signal, meanwhile, if the signal is interfered, the severe change of root mean square is caused, and the error is very easy to cause, therefore, a fluctuation coefficient is required to be given, the fluctuation coefficient is defined as the number that the difference value of the amplitude in the same ascending or descending trend in the signal in unit time is larger than a certain threshold value, and the formula of the fluctuation coefficient is as follows:
β＝∑Num{|A1-A2|＞A}
Wherein, beta represents a fluctuation coefficient, and A 1、A2 represents the same rising or falling amplitude of the waveform; a represents a fixed value, and typically takes the 1/2 peak of the waveform.
However, it is sometimes difficult to directly determine the type of the vibration signal of the optical fiber vibration signal only from time domain feature analysis, so that the invention combines the frequency domain feature of the optical fiber vibration signal to analyze, and can perform spectrum analysis on different types of interference signals, namely, determine according to the intensity of signal vibration when the optical fiber is vibrated.
In an optional embodiment, the abnormal vibration block analysis mechanism performs fourier transform processing on the optical fiber vibration signal acquired by the distributed optical fiber vibration sensing system, and calculates a preset value of the optical fiber vibration signal after fourier transform; and acquiring an abnormal vibration block with abnormal vibration of the optical fiber, wherein the abnormal vibration block is larger than a preset value threshold value parameter by setting a preset value threshold value.
The calculation method for obtaining the preset value Z n of the optical fiber vibration signal X n(m) after Fourier transformation comprises the following steps:
where sgn [ ] is a sign function, namely:
by adopting the technical scheme, the optical fiber mechanism 12 can be prevented from recognizing and calculating the optical fiber vibration signal with normal vibration, so that the user terminal 30 has more pertinence to the recognition process of the intrusion object, the working efficiency of the intrusion alarm system is improved, and in addition, the interference of strong wind and strong rain on security intrusion recognition of the fence can be effectively reduced, and the intrusion object can be accurately distinguished.
In an alternative embodiment, the analyzing device further includes a face feature extracting device, and after the image capturing mechanism 11 captures a video or a picture of the intrusion target, the face feature extracting device classifies the captured video or picture, and determines the object of intrusion according to the face recognition neural network.
The video or the picture acquired by the camera mechanism 11 is classified according to the face feature extraction device to determine the invaded object, so that the accuracy of the alarm system in judging the invaded object can be effectively improved, and meanwhile, the camera mechanism 11 can be sent to a user terminal for real-time tracking, and the working efficiency of personnel is improved.
In an alternative embodiment, the optical fiber mechanism 12 comprises a defense area sensing assembly, a vibration data acquisition assembly and a management analysis assembly, wherein the defense area sensing assembly is connected to the management analysis assembly through the vibration data acquisition assembly, and in this embodiment, the defense area sensing assembly is continuously and equidistantly distributed along the perimeter fences of the two sides of the defense area in the whole course, and the length of the defense area is not more than 250 meters according to the requirements of the prior art, and of course, the length of the defense area can also exceed 250 meters when the technology is developed to a certain extent; the vibration data acquisition component is arranged at the position of the video acquisition point, is accessed into the surrounding optical fiber defense area of the acquisition point nearby through a transmission optical cable, adopts real-time vibration data and uploads the vibration data; the management analysis component is used for receiving, analyzing, processing and early warning vibration data and has a remote configuration function of defense area parameters.
In an optional implementation manner, the defending area sensing assembly comprises a defending area module and a sensing optical cable connected with the defending area module, and in the embodiment, the defending area module and the sensing optical cable are both installed on the perimeter fence.
In an optional embodiment, the defending area module comprises a defending area head end module and a defending area terminal module, the defending area head end module corresponds to the defending area terminal module in position, the vibration data acquisition component comprises a laser, a photoelectric detector and a data acquisition control device, the laser emits light signals to interfere after passing through the defending area head end module and the defending area terminal module, and the photoelectric detector receives the interfered light signals and converts the light signals into electric signals to be transmitted to the data acquisition control device.
As a preferred embodiment, a first coupler is arranged on the defense area head end module, and a second coupler and a reflecting mirror are arranged on the defense area terminal module; when an optical signal emitted by a laser passes through a first coupler of an anti-region head end module and is divided into two paths of light beams, wherein one path of light beam sequentially passes through an optical fiber delay fiber and a second coupler of an anti-region terminal module and is reflected by a reflecting mirror, then sequentially passes through the second coupler and a sensing optical cable and returns to the first coupler, the other path of light beam sequentially passes through the sensing optical cable and the second coupler and is reflected by the reflecting mirror and then sequentially passes through the second coupler and the optical fiber delay fiber and returns to the first coupler, and the two paths of light beams interfere in the first coupler; the photoelectric detector is used for receiving the interfered light beam, converting the light signal into an electric signal and sending the electric signal to the data acquisition control device, and the data acquisition control device is used for acquiring the electric signal and preprocessing the electric signal.
In a preferred embodiment, the imaging means 11 includes a camera which is a high-definition network type laser camera and can be rotated and zoomed in all directions, and is installed on both sides of a railway in a staggered manner, and is covered by a continuous spot, thereby performing all-weather uninterrupted surveillance.
In order to meet the service requirements of safety units, the camera is specially designed with voice, laser driving and guiding functions, and can perform voice shouting and visible laser driving away an invasion target during an emergency, or indicate the invasion target position at night through visible laser, and guide police to capture.
After the technical scheme is adopted, the camera 11 and the optical fiber mechanism 12 form a defense area linkage patrol, when the defense area sensing assembly senses that a target object invades the defense area, the camera can carry out early warning according to the invasion early warning category and call a preset corresponding linkage plan, and when a control instruction of a user terminal is received, the joint patrol is carried out on the early warning defense area.
In an alternative embodiment, the optical fiber mechanism 12 is mounted on the railway fence on the periphery of the high-speed railway by a fixing device, the fixing device comprises a hoop part for hooping the railway fence and a fixing plate connected with the hoop part, the fixing plate is vertically arranged, and a groove for accommodating the vibrating optical fiber is formed in the surface of the fixing plate.
Specifically, staple bolt portion can be the U-shaped staple bolt, and simple structure is practical, and fixed plate fixed connection is at the open end of U-shaped staple bolt, and the fixed plate is when fixing the U-shaped staple bolt on the enclosure railing, still installs fixed optical fiber mechanism 12 through the recess on its face. The fixed plate can be the sheet metal component, and the recess can be buckled by one side of sheet metal component and form, and the preparation of such integral type is simpler convenient, and wherein, the notch of recess is towards staple bolt portion one side, can utilize the surface of enclosure railing and recess to carry out spacing fixedly jointly to vibrating optic fibre simultaneously.
As a preferred embodiment, the optical fiber mechanism 12 is internally provided with waveforms of various environments, such as waveforms in quiet condition, waveforms in rainy condition, waveforms for cross invasion, etc., when the defending area sensing assembly senses that the defending area has target invasion, the optical fiber mechanism 12 compares the collected waveforms with the waveforms of the built-in optical fiber mechanism 12, thereby realizing the function of intelligent detection.
As a preferred embodiment, the camera 11 comprises a video acquisition part, a video transmission part and an artificial intelligent video recognition part, the distance between single-side distribution points is 500 meters or 1000 meters according to the change of the terrain, and the camera is arranged at the position of the responsibility monitoring range of 500 meters, so that the video acquisition part can shoot without dead angles.
In a preferred embodiment, the collecting device further comprises a voice recognition mechanism for recognizing voices of the invaded object, wherein voices of different creatures, including human beings, are stored in the voice recognition mechanism, and if the voices of the invaded object are matched with the voices of the human beings, information is sent to the user terminal.
As a preferred embodiment, the system further comprises a transmission power supply device, the acquisition device, the analysis device 20 and the user terminal 30 are all connected to the transmission power supply device, in this embodiment, the transmission power supply device is 220V ac mains supply, and according to the electric power used by the equipment room, the storage battery is supported to store energy, the disaster recovery delay power supply is not less than 4 hours when the mains supply is abnormal, and the power supply capacity for external power supply is increased.
As a preferred embodiment, the lightning protection device further comprises a lightning protection grounding device, the transmission power supply devices are grounded through the lightning protection grounding device, and the lightning protection grounding device comprises an alternating current power supply lightning protection device and a direct current power supply lightning protection device and is used for protecting the electric and electronic devices from lightning electromagnetic pulse induced voltage, operation transient state and resonance (< 100 mu s) overvoltage.
As a preferred embodiment, the camera mechanism 11 and the optical fiber mechanism 12 are connected to the user terminal 30 through the map server, through which accurate positioning can be realized, and monitoring operations such as adjustment, setting and alarm linkage operation can be directly performed on the monitoring points, and monitoring operations such as real-time video preview, video recording and playback, cloud mirror control and the like can be realized, and specific targets can be automatically tracked, wherein in a real-time preview state, the operation of horizontal rotation, vertical rotation, lens zooming, preset position calling, cruise calling and the like of the camera can be performed, and the 3D positioning operation of the camera can be supported.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather to enable any modification, equivalent replacement, improvement or the like to be made within the spirit and principles of the invention.
Claims (10)
1. An unmanned autonomous integrated warning system for warning a railway perimeter, comprising:
the acquisition device comprises an optical fiber mechanism, wherein the optical fiber mechanism is arranged on the railway fence and is used for identifying an invasion target in the periphery of the railway;
The analysis device processes the information acquired by the optical fiber mechanism, and utilizes an M-Z interference principle to identify an optical fiber vibration signal of fence invasion and determine an invaded object;
The user terminal feeds back the intrusion object determined by the analysis device to the user terminal, and the user terminal monitors according to the intrusion object and adopts corresponding preset processing;
The analysis device further comprises an abnormal vibrating block acquisition mechanism, wherein the abnormal vibrating block acquisition mechanism is used for extracting characteristics of the optical fiber vibration signals acquired by the optical fiber mechanism, and the change of vibration signal energy is reflected through root mean square, and the root mean square calculation formula is as follows:
wherein Xrms represents the root of the signal square; n is the number of elements in the input sequence X;
the type of the vibration signal is reflected by a fluctuation coefficient, wherein the formula of the fluctuation coefficient is as follows:
β＝∑Num{|A1-A2|＞A}
wherein, beta represents a fluctuation coefficient, and A 1、A2 represents the same rising or falling amplitude of the waveform; a represents a fixed value, and generally takes 1/2 peak value of the waveform;
The optical fiber mechanism is arranged on a railway fence on the periphery of the high-speed railway through the fixing device, the fixing device comprises a hoop part for hooping the railway fence and a fixing plate connected with the hoop part, the fixing plate is vertically arranged, and a groove for accommodating the vibrating optical fiber is formed in the surface of the fixing plate;
The fixing plate is fixedly connected to the opening end of the U-shaped anchor ear, so that the fixing plate is used for fixing the U-shaped anchor ear on a fence rail and simultaneously installing and fixing an optical fiber mechanism through a groove on the plate surface of the fixing plate; the fixed plate can be a sheet metal part, the groove is formed by bending one side of the sheet metal part, and the notch of the groove faces one side of the hoop part, so that the vibration optical fiber is limited and fixed jointly by the surface of the fence rail and the groove.
2. The unmanned autonomous integrated alarm system of claim 1, wherein: the analysis device further includes:
The optical fiber vibration sensing system comprises an abnormal vibration block acquisition mechanism, an optical fiber vibration block analysis mechanism and a control unit, wherein the optical fiber mechanism is a distributed optical fiber vibration sensing system, the abnormal vibration block analysis mechanism performs Fourier transform processing on optical fiber vibration signals acquired by the distributed optical fiber vibration sensing system, and a preset value of the optical fiber vibration signals is obtained after the Fourier transform is calculated; and acquiring an abnormal vibration block with abnormal vibration of the optical fiber, wherein the abnormal vibration block is larger than a preset value threshold value parameter by setting a preset value threshold value.
3. The unmanned autonomous integrated alarm system of claim 2, wherein: the calculation method for obtaining the preset value Z n of the optical fiber vibration signal X n(m) after the Fourier transformation comprises the following steps:
where sgn [ ] is a sign function, namely:
4. The unmanned autonomous integrated alarm system of claim 1, wherein: the optical fiber mechanism comprises a defense area sensing assembly and a vibration data acquisition assembly, and the defense area sensing assembly is connected to the analysis device through the vibration data acquisition assembly.
5. The unmanned autonomous integrated alarm system of claim 1, wherein: the defense area sensing assembly comprises a defense area module and a sensing optical cable connected with the defense area module, and the defense area module and the sensing optical cable are both installed on a fence at the periphery of the defense area.
6. The unmanned autonomous integrated alarm system of claim 5, wherein: the defense area module comprises a defense area head end module and a defense area terminal module, and the positions of the defense area head end module and the defense area terminal module correspond to each other.
7. The unmanned autonomous integrated alarm system of claim 6, wherein: the first coupler is arranged on the defense area head end module, and the second coupler and the reflecting mirror are arranged on the defense area terminal module; after the light beam sequentially passes through the first coupler and the second coupler, the light beam returns to the first coupler through the reflecting mirror.
8. The unmanned autonomous integrated alarm system of claim 1, wherein: the alarm system further comprises:
And the acquisition device, the analysis device and the user terminal are all connected to the transmission power supply equipment.
9. The unmanned autonomous integrated alarm system of claim 1, wherein: the alarm system further comprises:
The lightning protection grounding equipment is used for grounding the transmission power supply equipment.
10. The unmanned autonomous integrated alarm system of claim 1, wherein: the user terminal is one or more of a client computer, a display device, an audible and visual alarm, a short message gateway and a microphone for shouting.
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