CN107424369A - A kind of optic cable vibration sensor alarm of low rate of false alarm - Google Patents
A kind of optic cable vibration sensor alarm of low rate of false alarm Download PDFInfo
- Publication number
- CN107424369A CN107424369A CN201710518075.2A CN201710518075A CN107424369A CN 107424369 A CN107424369 A CN 107424369A CN 201710518075 A CN201710518075 A CN 201710518075A CN 107424369 A CN107424369 A CN 107424369A
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- Prior art keywords
- alarm
- vibration
- optical cable
- signal
- collector
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/02—Mechanical actuation
- G08B13/12—Mechanical actuation by the breaking or disturbance of stretched cords or wires
- G08B13/122—Mechanical actuation by the breaking or disturbance of stretched cords or wires for a perimeter fence
- G08B13/124—Mechanical actuation by the breaking or disturbance of stretched cords or wires for a perimeter fence with the breaking or disturbance being optically detected, e.g. optical fibers in the perimeter fence
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
- G08B29/18—Prevention or correction of operating errors
- G08B29/185—Signal analysis techniques for reducing or preventing false alarms or for enhancing the reliability of the system
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Burglar Alarm Systems (AREA)
Abstract
The present invention relates to technical field of security and protection, more particularly to a kind of optic cable vibration sensor alarm of low rate of false alarm；The present invention includes alarm host machine and vibrating sensing mechanism；Vibrating sensing mechanism includes vibration optical cable, collector and GPZ, and laser, photo-detector, optical-electrical converter, alarm processor are provided with collector；In the present invention, vibration optical cable is laid, it is wound on fence or enclosure wall, laser sends laser signal to vibration optical cable, when someone invades, the output waveform optical signal of vibration optical cable can change, photo-detector receives this output waveform optical signal to change, the output waveform optical signal that this changes is changed into electric signal by optical-electrical converter, alarm processor is analyzed and processed, and is also compared, and determines whether that someone invades, if it is determined that someone invades, alarm host machine is set to carry out alarm warning.
Description
Technical field
The present invention relates to technical field of security and protection, more particularly to a kind of optic cable vibration sensor alarm of low rate of false alarm.
Background technology
With expanding economy, the temptation that people face is more and more, yields to temptation, the daredevil that do not stint gets over
Come more, cause frequency that stolen event occurs also more and more higher.It is antitheft in order to protect the private property of people and public interest
Security and guard technology arises at the historic moment, and is also constantly developing perfect, security performance also more and more higher according to prior art.
Anti-theft technique in the market is typically all by infrared ray perceive carrying out break-make control with magnetic reed switch
Combination, to realize the purpose for perceiving unknown object and entering house interior or door and window and being opened by force.Above-mentioned anti-theft technique
In means or device, the remolding sensitivity that infrared ray perceives object is relatively low, easily causes false alarm or fails to report the problem of alert, so as to
The property safety of individual or the safety of public interest is caused to be difficult to effectively be ensured.
The content of the invention
Described above in order to overcome the shortcomings of, it is an object of the invention to provide a kind of optic cable vibration of low rate of false alarm to sense report
Alarm device, it is laid vibration optical cable, and collector to vibration optical cable sense the change of its output signal, and judgement is
No someone's invasion.
The present invention solve its technical problem technical scheme be：
A kind of optic cable vibration sensor alarm of low rate of false alarm, wherein, including alarm host machine in Control Room and be in
Several vibrating sensing mechanisms outside Control Room；The alarm host machine carries out radio communication with the vibrating sensing mechanism and is connected；
The vibrating sensing mechanism includes vibration optical cable, collector and GPZ, one end of the vibration optical cable and the collection
Device is connected, and the other end of the vibration optical cable is connected with the GPZ；It is provided with and is used for described in the collector
Vibration optical cable sends the optical detection of the laser of laser signal, the output waveform optical signal sent for receiving the vibration optical cable
Device, the optical signal for photo-detector transmission to be come change into the optical-electrical converter of electric signal, for the photoelectricity to be turned
The alarm processor that the electric signal that parallel operation transmission comes is analyzed and processed.
As a modification of the present invention, be provided with the collector for send alarm signal and with the alarm
The wireless launcher of device connection is managed, the alarm signal sent for receiving the wireless launcher is provided with the alarm host machine
Wireless receiver.
As a further improvement on the present invention, it is shaking for 20HZ ~ 200HZ to be provided with the collector for rejection frequency
The frequency filter of dynamic signal.
As the further improvement of the present invention, the filter for setting the frequency filter is provided with the collector
Except the set of frequency device of frequency size.
As the further improvement of the present invention, it is provided with the collector for detecting the vibration signal duration
Detector and the event counter for being counted to vibration number, the detector, event counter with the alarm
Processor connects.
As the further improvement of the present invention, it is more than 5 seconds when the vibration signal duration that the detector detects,
And when the vibration number of event counter statistics per second is more than 2 times simultaneously, the alarm processor control wireless hair
Emitter sends alarm signal.
As the further improvement of the present invention, it is provided with the alarm host machine and equal is connected with the wireless receiver
Warning mechanism and indication mechanism, the warning mechanism include the relay of the inside for being arranged on the alarm host machine being connected and
The indicator lamp being arranged in the alarm host machine；The indication mechanism includes the display screen being connected and is stored with electronic map letter
The memory of breath.
As the further improvement of the present invention, in laying vibration optical cable on iron artistic fence, the collector and optical cable
Termination box is fixedly connected with iron skill, and the vibration optical cable is connected in the form of walking S types on the iron artistic fence.
As the further improvement of the present invention, in laying vibration optical cable on chain link fence, the collector and light
Cable termination box is fixedly connected with chain link fence, and the vibration optical cable is connected to the chain link fence with form of straight lines
On.
As the further improvement of the present invention, in laying vibration optical cable on enclosure wall, the collector and optical fiber cable termination
Box is connected to
At the height of liftoff 1.5 ~ 2 meters of the inner side of enclosure wall, two are laid on metope using parallel line type mode in the outside of enclosure wall
Optical cable is vibrated described in road.
In the present invention, vibration optical cable is laid, and is wound on fence or enclosure wall, and laser sends laser to vibration optical cable
Signal, when someone invades, vibrating the output waveform optical signal of optical cable can change, and photo-detector receives what this changed
The output waveform optical signal that this changes is changed into electric signal, alarm processor by output waveform optical signal, optical-electrical converter
Analyzed and processed, be also compared, determined whether that someone invades, if it is determined that someone invades, carry out alarm host machine
Alarm warning；The present invention is laid vibration optical cable, and collector to vibration optical cable sense the change of its output signal,
Judge whether that someone invades, detection judgement rate is high and accurate.
Brief description of the drawings
For ease of explanation, the present invention is described in detail by following preferred embodiments and accompanying drawing.
Fig. 1 is the connection block diagram of the present invention；
Fig. 2 is that the inside of the collector of the present invention connects block diagram；
Fig. 3 is vibration signal caused by the invasion of people in the present invention；
Fig. 4 is vibration signal caused by the process of vehicle in the present invention；
Fig. 5 is vibration signal caused by 5 ~ 7 grades of strong wind in the present invention；
Fig. 6 is animal and branch hit caused vibration signal in the present invention；
Fig. 7 is vibration signal caused by hailing in the present invention；
Fig. 8 is the caused vibration signal that rains heavily in the present invention；
Fig. 9 is the embodiment one of present invention laying iron artistic fence；
Figure 10 is the embodiment two of present invention laying iron artistic fence；
Figure 11 is the embodiment one of present invention laying chain link fence；
Figure 12 is the embodiment two of present invention laying chain link fence；
Figure 13 is the embodiment three of present invention laying chain link fence；
Figure 14 is the example IV of present invention laying chain link fence；
Figure 15 is the embodiment of present invention laying enclosure wall；
Reference：1- alarm host machines, 11- wireless receivers, 12- warning mechanisms, 13- indication mechanisms, 14- relays, 15- refer to
Show lamp, 16- display screens, 17- memories, 2- vibrating sensings mechanism, 21- vibration optical cables, 22- collectors, 221- lasers, 222-
Photo-detector, 223- optical-electrical converters, 224- alarm processors, 225- wireless launchers, 226- frequency filters, 227- detections
Device, 228- event counters, 229- set of frequency devices, 23- GPZs.
Embodiment
In the description of the invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Be easy to the description present invention and simplify description, rather than instruction or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that instruction or hint relative importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
As shown in Figure 1, Figure 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 10, Figure 11, Figure 12, Figure 13, Figure 14, Tu15Suo
Show, a kind of optic cable vibration sensor alarm of low rate of false alarm of the invention, including the alarm host machine 1 in Control Room and place
In several vibrating sensing mechanisms 2 outside Control Room.
Alarm host machine 1 carries out radio communication with vibrating sensing mechanism 2 and is connected, when vibrating sensing mechanism 2 detects people's invasion,
Alarm warning is carried out by transmitting wirelessly in signal to alarm host machine 1.
Vibrating sensing mechanism 2 includes vibration optical cable 21, collector 22 and the GPZ being arranged on fence or enclosure wall
23, one end of vibration optical cable 21 is connected with collector 22, and the other end of vibration optical cable 21 is connected with GPZ 23.
It is provided with collector 22 for sending the laser 221 of laser signal, for receiving vibration to vibration optical cable 21
The photo-detector 222 for the output waveform optical signal that optical cable 21 is sent, the optical signal for photo-detector 222 to be transmitted change into
The alert process that the optical-electrical converter 223 of electric signal, the electric signal for optical-electrical converter 223 to be transmitted are analyzed and processed
Device 224.
One vibrating sensing mechanism 2 forms a defence area, and general 200 to 300 meters are made a defence area and be independent defence area,
This vibrating sensing mechanism 2 need to be triggered, it is that alarm host machine 1 will be shown for which defence area someone invasion, will not be because of a part
Go wrong, and influence whole alarm, which vibrating sensing mechanism 2 is broken, and alarm host machine 1 also has prompting, so as to conveniently go
Maintenance.
In the present invention, vibration optical cable 21 laid, be wound on fence or enclosure wall, laser 221 to vibration optical cable 21
Laser signal is sent, when someone invades, the output waveform optical signal of vibration optical cable 21 can change, and photo-detector 222 connects
The output waveform optical signal to be changed by this, optical-electrical converter 223 change into the output waveform optical signal that this changes
Electric signal, alarm processor 224 are analyzed and processed, are also compared, and determine whether that someone invades, if it is determined that someone
Invasion, makes alarm host machine 1 carry out alarm warning.
When vibration optical cable 21 is influenceed by extraneous vibration, vibrating the part of properties of transmission light in optical cable 21 will change,
By photo-detector 222, by the characteristic of signal collection and analysis, just energy detection light（That is decay, phase, wavelength, polarization, mould
Field distribution and propagation time）Change, the characteristic variations of light distinguish third party's intrusion behavior by the analyzing and processing of alarm processor
With normal interference, alarm and positioning function are realized.
As shown in figure 3, in the present invention, in order to detect weak vibration, vibration optical cable 21 is formed using two core single mode fiber cables,
When transmitting to beam of laser with laser 221, the vibration optical cable 21 being made up of this two optical cables exports interference light signal, when shaking
Dynamic optical cable 21 is invaded and harassed by the external world, such as：Excavate, touch, beat, then the output waveform of interference light changes, and produces interference pattern
Picture, this waveform can detect by photo-detector and change, the feature of change waveform is analyzed by alarm processor, can be offered an explanation
The truth of outgoing event, so as to reach the effect of " intrusion model identification ".
Further, the wireless hair for sending alarm signal and being connected with alarm processor 224 is provided with collector 22
Emitter 225, the wireless receiver 11 of the alarm signal for receiving the transmission of wireless launcher 225, side are provided with alarm host machine 1
Just carry out radio communication, after alarm processor 224 detects someone's invasion, alarm signal is sent to wireless by wireless launcher 225
Alarm warning is carried out by alarm host machine 1 on receiver 11.
As shown in Figure 4 and Figure 5, nearby vehicle, which is passed through and blown hard, causes the vibration of fence to be a kind of low-frequency vibration, such as
Fruit can not be handled well, then rate of false alarm is very high, and it is shaking for 20HZ ~ 200HZ to be provided with collector 22 for rejection frequency
The frequency filter 226 of dynamic signal, filters out nearby vehicle and passes through and blow hard and cause the vibration of fence, resulting vibration
Signal will not cause alarm；It is provided with collector 22 for setting the frequency of the rejection frequency size of frequency filter 226 to set
Device 229 is put, the signal that frequency filter 226 filters out vibration frequency can be carried out by set of frequency device 229, we can pass through
Some specific signal of the frequency identification of signal, vibration signal and people climb vibration letter caused by fence caused by vehicle process
Number very big difference in frequency domain be present, wrong report source is readily identified in frequency domain.
As shown in Fig. 6, Fig. 7 and Fig. 8, several landing beat fence, bird etc. and fall on the accidental thrusts fence such as fence, hail
Deng may all cause wrong report, by the reasonable setting to alarm processor, can filter out caused by these most of accidentalia
Wrong report；Detector 227 for detecting the vibration signal duration is provided with collector 22 and for being carried out to vibration number
The event counter 228 of statistics, detector 227, event counter 228 are connected with alarm processor 224, when vibration signal leads to
Filtering out for frequency filter has been crossed, if not reaching the requirement of detector 227 and event counter simultaneously, will not also trigger report
It is alert, as animal or branch hit caused vibration signal, vibration signal caused by hailing and vibration caused by raining heavily are believed
It number can not reach the requirement of detector 227 and event counter simultaneously, alarm will not be also triggered, when the detector 227 detects
The vibration signal duration arrived be more than 5 seconds, and the vibration number of 228 statistics per second of simultaneous events counter be more than 2 times when, then
Judge that someone invades, alarm processor 224 controls wireless launcher 225 to send alarm signal.
The present invention provides a kind of embodiment of alarm host machine 1, is provided with alarm host machine 1 and connects with wireless receiver 11
The warning mechanism 12 and indication mechanism 13 connect, warning mechanism 12 include the relay for the inside for being arranged on alarm host machine 1 being connected
Device 14 and the indicator lamp 15 being arranged in alarm host machine 1；Indication mechanism 13 includes the display screen 16 being connected and is stored with electronics
The memory 16 of cartographic information；Which defence area someone invasion, which vibrating sensing mechanism 2 just send alarm signal, alarm host machine 1
The upper relay 14 for monitoring that defence area will control its indicator lamp 15 bright while can also sound the alarm, and display screen 16 can basis
The electronic map information of memory 16, display are that anti-zone positions；There is multiple bus input port in alarm host machine 1, signal is defeated
Send and use low-resistance transmission line technology, convey reliable strong antijamming capability, there is computer output interface to be connected with computer, make function more
Powerful, there is printer interface to print perimeter alarm information in time for it；Indicator lamp 15 is that LCD blue screens show that display content is enriched,
Information is simple and clear, and display screen 16 has Serial output mouth, can show electronic map and specific position with the convenient connection of memory 17
Put, alarm is optional to be had Jing Yin and have acoustic alarm；There is relay 14 to get an electric shock during alarm to export, control indicator lamp 15 is warned
Show.There is Phototube Coupling each input port of alarm host machine 1, stronger using double electric structures, antijamming capability.
The present invention provides the vibration embodiment that optical cable 21 is laid on iron artistic fence, as shown in figure 9, a kind of iron artistic fence
Embodiment one is laid, in laying vibration optical cable 21 on iron artistic fence, collector 22 and GPZ 23 are fixedly connected with
In iron skill, vibration optical cable 21 is connected on iron artistic fence in the form of walking S types, that is to say, that the laying vibration optical cable in iron skill
When 21, because iron skill is harder, the quantity of vibration optical cable 21 should be increased to guarantee reliably to sense invasion signal, pass through analysis
Invader crosses the action feature of fence, it is proposed that together with being laid along the horizontal iron railing of iron skill top, centre and lowermost end is each
Vibrate optical cable 21.
Such as Figure 10 institutes method, a kind of iron artistic fence lays embodiment two, and in iron artistic fence, some iron skills can be arranged on post
Son, if the area of pillar is little, laying can be directed across pillar when vibrating optical cable 21, but the cross section of some pillars is compared
Greatly, easily entered by invader using this region, so must be protected by such region, can be installed in post top portion
Iron net, when laying optical cable, vibration optical cable 21 is routed in the iron net.
Such as need to improve alert level, can be in the one or multi-channel vibration optical cable 21 of the center section of iron artistic fence laying, collector 22
It is securable on iron skill pillar, at about 1.5 meters of ground, is firmly fixed GPZ 23 with fixture or binding strap
On medium.If being wider pillar of laying bricks between two iron skills, GPZ 23 can be fixed on pillar, with expansion
Bolt is fixed.
In laying vibration optical cable 21 on chain link fence, collector 22 and GPZ 23 are fixedly connected with iron wire
On netting fence, vibration optical cable 21 is connected on the chain link fence with form of straight lines.
Invention provides the vibration embodiment that optical cable 21 is laid on chain link fence；As shown in figure 11, one
Kind chain link fence laying embodiment one, is laid using straight line paving mode, and required vibration optical cable 21 is less, suitable for guarding against level
Not relatively low place；The invasion mode that this paving mode may detect climbing, cross, which vibrates optical cable 21, should be laid on iron net height
At degree about 3/4, laid in horizontal linear, every 40 centimetres with antiultraviolet band or special binding strap by optical cable and iron net grid
It is tightly fastened.
As shown in figure 12, a kind of chain link fence laying embodiment two, it is this by the way of level lays multiple tracks optical cable
Paving mode may detect climbing, cross, cut net, ladder auxiliary such as crosses at the invasion mode, it is possible to increase the induction area of fence, from
And weaker invasion signal is effectively detected, which is applied to the higher place of alert level, vibrates optical cable 21 along fence
Top is laid, around the straight line laying in the opposite direction that comes when reaching defence area end, can Duo Puji roads back and forth on demand, vibrate optical cable
The interval of 21 layings can be highly evenly distributed by iron net.
Collector 22 is securable in pillar or the iron net of wire netting junction, at about 1.5 meters of ground, to avoid
Collector 22, which is installed, loosely causes wrong report, should select solid firm pillar or the wire netting strained at as mount point；During installation
Optional fastening clips are fixed, and can also use binding wire banding fixed, but no matter take which kind of mode, must allow collector 22
Closely it is securely fixed on medium.
As shown in Figure 13 and Figure 14, a kind of chain link fence laying embodiment three and four, the sensitivity of vibration optical cable 21 exist
Whole defence area scope has uniformity, but the elasticity of medium can change, so to be examined when optical cable 21 is vibrated in laying
Consider the influence of this factor, the vibration induction area of optical cable 21 laid on tighter medium on more loose medium than laying
Optical cable induction area it is big, can be by figure such as when the column portion of wire netting, defence area end section lay vibration optical cable 21
Mode shown in 13 and Figure 14 is laid, and wherein Figure 14 paving mode is more more sensitive than Figure 13 mode, if needs to use this
Kind of mode increases the sensitivity in footing defence area, should be determined by on-the-spot test.
In laying vibration optical cable 21 on enclosure wall, the inner side that collector 22 and GPZ 23 are connected to enclosure wall is liftoff
At 1.5 ~ 2 meters of height, twice vibration optical cable 21 is laid on metope using parallel line type mode in the outside of enclosure wall.
As shown in figure 15, embodiment is laid on a kind of enclosure wall, common are chisel wall for the invasion mode of enclosure wall and cross.
It is a kind of common invasion mode for enclosure wall to dig wall, and vibration optical cable 21 can be collected when invader digs wall and produced
Raw microvibration.Workmen can lay twice vibration optical cable 21, the height of enclosure wall using parallel line type mode on metope
It is not to be exceeded 2 meters, vibration optical cable 21 should be fixed at 0.5 meter and 1.5 meters of ground, high if enclosure wall is highly more than 2 meters
Degree often increases by 1 meter, need to increase by one of vibration optical cable 21, and vibration optical cable 21 is horizontally fixed on the middle part in the region.In order to ensure to shake
Dynamic optical cable 21 can sense to be vibrated caused by chisel wall, it is necessary to assure metope is solid, and brick can not have loosening soon, and optical cable should be tight
Enclosure wall surface is thickly attached to, wire clip can be used to be fixed every 50 centimetres.
If invader is entered by the way of crossing, caused vibration is extremely faint during this, vibrates optical cable 21
The signal sensed is insufficient as judging the foundation of invasion, so when taking precautions against this invasion mode, it is necessary to installed on the top of a wall
Net is detained, rolls net or vertical net, with the intensity and induction area of increase vibration.Button net materials typically use Φ 3, aperture as 20cm X
5cm iron net, it should be noted that in the online fixed vibration optical cable 21 of button and vibration optical cable 21 be fixed on to the top that net is buckled on the outside of enclosure wall,
Vibration optical cable more than 21 can be laid several roads when needing to improve alert level.
Collector 22 should be arranged on the height of liftoff 1.5 meters of inboard wall, be fixed on the wall with expansion bolt.
In addition, for buried type, collector 22, which can gather, to be embedded under the circumference earth's surface medium such as lawn, sandy soil, gravel
Sensing optic cable signal.Laying vibration optical cable 21 when can use peripherally parallel laid multiple tracks vibration optical cable 21 by the way of, but
Because quality, the hardness of different earth's surface media are different, so the laying interval difference of vibration optical cable 21.
In the present invention, collector 22 is a Intelligent switch amount output warning device, is led with vibration optical cable 21, alarm
Machine 1 forms warning system, warning system strong antijamming capability, the good reliability, the invasion except that can detect various ways
Outside, it can also shield and report by mistake caused by most of environmental factor, the circuit part in collector 22 takes safe and reliable anti-
Thunder safeguard measure, in addition, the shell of collector 22 is manufactured using the engineering plastics of high-strength performance, material is light and with reliable close
Seal water resistance.
In the present invention, to vibrate optical cable 21 for sensing unit, alarm signal is produced using extraneous vibration；Using vibrating light
Cable 21 can preferably exclude the interference in extraneous highfield magnetic field as sensor, and system reliability is high；Vibration optical cable 21 is passing
It is lost that small, stability is high during defeated, the maximum detectable range in each defence area is 1000m；Vibration optical cable 21 is passive probe,
Suitable for combustible and explosive area；Vibration optical cable 21 is applied to various complicated landforms, and the detection to irregular circumference defence area can be achieved；
Vibration optical cable 21 can be laid immediately on anti-climbing in various iron nets；Vibration optical cable 21 has very high sensitivity, can be direct
Carry out buried laying；Collector 22 can gather the defence area of two kinds of different mediums.
The optical cable 21 used in the present invention that vibrates is particularly suitable in a varied topography, inflammable and explosive substances to be passive and cable-shaped
Product warehouse, irregular perimeter region and should not power supply enter etc. place install and use；Also wall can be embedded to, be embedded to inferior conduct
Bank vault, the anti-chisel of ammunition depot and other significant points, anti-trespass use；It is alternatively arranged as field work place, campsite
Warning line use.
The normal activity of personnel near warning line is not influenceed in the operation of the present invention.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.
Claims (10)
1. a kind of optic cable vibration sensor alarm of low rate of false alarm, it is characterised in that including the alarm master in Control Room
Machine and several vibrating sensing mechanisms outside Control Room；The alarm host machine carries out channel radio with the vibrating sensing mechanism
Letter connection；The vibrating sensing mechanism includes vibration optical cable, collector and GPZ, one end of the vibration optical cable and institute
Collector connection is stated, the other end of the vibration optical cable is connected with the GPZ；It is provided with and is used in the collector
The laser of laser signal is sent to the vibration optical cable, for receiving the output waveform optical signal for vibrating optical cable and sending
Photo-detector, the optical signal for photo-detector transmission to be come change into the optical-electrical converter of electric signal, for by described in
The alarm processor that the electric signal that optical-electrical converter transmission comes is analyzed and processed.
2. the optic cable vibration sensor alarm of a kind of low rate of false alarm according to claim 1, it is characterised in that described to adopt
The wireless launcher for sending alarm signal and being connected with the alarm processor is provided with storage, in the alarm host machine
It is provided with the wireless receiver of the alarm signal sent for receiving the wireless launcher.
A kind of 3. optic cable vibration sensor alarm of low rate of false alarm according to claim 1 or 2, it is characterised in that institute
State the frequency filter being provided with collector for the vibration signal that rejection frequency is 20HZ ~ 200HZ.
4. the optic cable vibration sensor alarm of a kind of low rate of false alarm according to claim 3, it is characterised in that described to adopt
The set of frequency device of the rejection frequency size for setting the frequency filter is provided with storage.
5. the optic cable vibration sensor alarm of a kind of low rate of false alarm according to claim 3, it is characterised in that described to adopt
It is provided with storage based on the detector by detecting the vibration signal duration and the event by being counted to vibration number
Number device, the detector, event counter are connected with the alarm processor.
6. the optic cable vibration sensor alarm of a kind of low rate of false alarm according to claim 5, it is characterised in that when described
The vibration signal duration that detector detects is more than 5 seconds, and the vibration number of event counter statistics per second simultaneously
During more than 2 times, the alarm processor controls the wireless launcher to send alarm signal.
A kind of 7. optic cable vibration sensor alarm of low rate of false alarm according to claim 1, it is characterised in that the report
The equal warning mechanism and indication mechanism being connected with the wireless receiver is provided with alert main frame, the warning mechanism includes being connected
What is connect is arranged on the relay of the inside of the alarm host machine and the indicator lamp being arranged in the alarm host machine；The display machine
Structure includes the display screen being connected and the memory for being stored with electronic map information.
8. the optic cable vibration sensor alarm of a kind of low rate of false alarm according to claim 1, it is characterised in that in iron skill
On fence laying vibration optical cable when, the collector and GPZ are fixedly connected with iron skill, it is described vibration optical cable with
The form for walking S types is connected on the iron artistic fence.
9. the optic cable vibration sensor alarm of a kind of low rate of false alarm according to claim 1, it is characterised in that in iron wire
On netting fence during laying vibration optical cable, the collector and GPZ are fixedly connected with chain link fence, described to shake
Dynamic optical cable is connected on the chain link fence with form of straight lines.
10. the optic cable vibration sensor alarm of a kind of low rate of false alarm according to claim 1, it is characterised in that enclosing
On wall during laying vibration optical cable, at the height for liftoff 1.5 ~ 2 meters of the inner side that the collector and GPZ are connected to enclosure wall,
Laid in the outside of enclosure wall using parallel line type mode on metope described in twice and vibrate optical cable.
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| CN201710518075.2A CN107424369A (en) | 2017-06-29 | 2017-06-29 | A kind of optic cable vibration sensor alarm of low rate of false alarm |
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| CN201710518075.2A CN107424369A (en) | 2017-06-29 | 2017-06-29 | A kind of optic cable vibration sensor alarm of low rate of false alarm |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109360391A (en) * | 2018-09-07 | 2019-02-19 | 赛特威尔电子股份有限公司 | A kind of alarm self checking method, device and alarm |
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| CN110126885A (en) * | 2018-02-02 | 2019-08-16 | 保定市天河电子技术有限公司 | A kind of railway circumference intrusion target monitoring method and system |
| CN110126885B (en) * | 2018-02-02 | 2022-04-22 | 保定市天河电子技术有限公司 | Railway perimeter intrusion target monitoring method and system |
| CN109584489A (en) * | 2018-02-11 | 2019-04-05 | 乌鲁木齐智源易通智能科技有限公司 | Optic cable vibration detects prior-warning device and application method |
| CN110386104A (en) * | 2018-04-17 | 2019-10-29 | 英属开曼群岛商麦迪创科技股份有限公司 | Warning system and alarming method for power |
| CN109360391A (en) * | 2018-09-07 | 2019-02-19 | 赛特威尔电子股份有限公司 | A kind of alarm self checking method, device and alarm |
| CN110084942A (en) * | 2019-05-08 | 2019-08-02 | 重庆鸣洋科技股份有限公司 | A kind of intelligent door lock system and its working method with identification function of forcing open the door |
| CN110415471A (en) * | 2019-07-03 | 2019-11-05 | 浙江大学 | A kind of underground historical relic anti-theft monitoring terminal and method based on 6LowPan |
| CN112927457A (en) * | 2021-01-26 | 2021-06-08 | 上海新住信机电集成有限公司 | Perimeter alarm method, system, device and storage medium thereof |
| CN112927457B (en) * | 2021-01-26 | 2022-09-09 | 上海新住信机电集成有限公司 | Perimeter alarm method, system, device and storage medium thereof |
| CN115497240A (en) * | 2022-09-19 | 2022-12-20 | 中铁第四勘察设计院集团有限公司 | Edge protection optical fiber monitoring device and method |
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