CN201829006U - Optical fiber sensing intelligent addressing perimeter intrusion alarm system - Google Patents
Optical fiber sensing intelligent addressing perimeter intrusion alarm system Download PDFInfo
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- CN201829006U CN201829006U CN2010202779686U CN201020277968U CN201829006U CN 201829006 U CN201829006 U CN 201829006U CN 2010202779686 U CN2010202779686 U CN 2010202779686U CN 201020277968 U CN201020277968 U CN 201020277968U CN 201829006 U CN201829006 U CN 201829006U
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 25
- 230000003287 optical effect Effects 0.000 claims abstract description 18
- 239000000835 fiber Substances 0.000 claims description 29
- 238000004891 communication Methods 0.000 claims description 12
- 238000012545 processing Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 5
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- 235000009566 rice Nutrition 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 230000006399 behavior Effects 0.000 abstract 2
- 230000009545 invasion Effects 0.000 description 14
- 238000005259 measurement Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
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- 238000006243 chemical reaction Methods 0.000 description 1
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- 238000012423 maintenance Methods 0.000 description 1
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Abstract
The utility model provides an optical fiber sensing intelligent addressing perimeter intrusion alarm system which is characterized by comprising a passive optical fiber addressing sensing optical cable, an alarm data processor and a computer; the passive optical fiber addressing sensing optical cable is arranged on the perimeter of a security area and is connected with the signal port of the alarm data processor; and the data port of the alarm data processor is connected with the computer. The optical fiber sensing intelligent addressing perimeter intrusion alarm system adopts a passive structure outdoors to realize the real-time monitoring to the perimeter intrusion behaviors, and enhances the system reliability; and an optical fiber grating sensor can precisely position the places of the intrusion behaviors.
Description
Technical field
The utility model relates to a kind of Fibre Optical Sensor intelligently addressing circumference intrusion alarm system that is used for the circumference safety precaution of main facilities zone and building villa.
Background technology
Continuous exploration and development along with optical fiber technology over past ten years, the fiber-optic probe warning system that is perceived as detection means with optical fiber is progressively ripe and stable, it compares many advantages such as having anti-electromagnetic wave disturbs, the scope of application is extensive, highly sensitive, disguised height, strong interference immunity with the traditional alert Detection Techniques, and is applied to the security system of field such as airport, important warehouse, prison, finance and top-grade building.
Existing fiber-optic probe warning system sensing sources is a sensing optic cable, sensing optic cable is based on the fiber optic interferometric principle of induction, by optical-fiber deformation, the refraction of light wave that disturbance produced are changed, light wave is reflected formed interference spectrum analyze, realize reporting to the police and survey.System has the following disadvantages in actual the use:
1) sensing optic cable can't accurately be located, and therefore can't realize the accurate location in defence area, can only realize fuzzy location according to the length that the defence area is divided, and is difficult to satisfy the demand of high-grade crime prevention system;
2) anti-environment capacity is poor: be difficult to analyze air-out and artificial difference so system's rate of false alarm height of invading because sensing optic cable is whole sensing, cause range of application to be restricted;
3) outdoor transducing part adopts active structure: outdoor sensing optic cable needs the configuration effort power supply, can't effectively embody the excellent function of optical fiber, cause system reliability to reduce.
The utility model content
The technical problems to be solved in the utility model is: a kind of Fibre Optical Sensor intelligently addressing circumference intrusion alarm system is provided, realizes real-time monitoring and accurate location to the circumference intrusion behavior.
The utility model is to solve the problems of the technologies described above the technical scheme of being taked to be: a kind of Fibre Optical Sensor intelligently addressing circumference intrusion alarm system is characterized in that: include passive fiber addressing sensing optic cable, alert data processor and computing machine; Passive fiber addressing sensing optic cable is installed in security protection zone circumference and links with alert data processor signal port, and the FPDP and the computing machine of alert data processor join.
Press such scheme, described passive fiber addressing sensing optic cable is by communication optical fiber and sensor fibre integrator, described sensor fibre is an optical fiber raster vibration sensor of gathering the Bradley lattice wave in real time, be connected in series a plurality of optical fiber raster vibration sensors by an optical fiber and constitute, carry out the distributed information collection by wavelength-division multiplex technique.
Press such scheme, described fiber-optic grating sensor equidistantly is laid on the sensing optic cable along length, and adjacent two the fiber-optic grating sensor spacings of sensing optic cable are 0.5-6 rice.
Press such scheme, described computing machine includes data reception module, wind and rain model database, first judge module, data processing module, second judge module and warning device; Wherein first judge module and data reception module and wind and rain model database link, and connect with data processing module, second judge module and the output terminal of the data processing module device taking alarm in parallel that links.
Press such scheme, Prague wave-wave appearance comparison process that computing machine transmits front and back draws vibratory output, comes the situation of analysis and judgement security protection zone circumference, and the wind and rain model database comprises wind and rain state sensor waveform, for system call; The threshold value of systemic presupposition period T and described vibratory output is analyzed automatically and is judged.
Press such scheme, described computing machine can connect by communication network with the alert data processor, and communication network can be Ethernet, increasing the propagation distance between alert data processor and the computing machine, and can with many computing machine mutual communication.
Press such scheme, described alert data processor connects by optical-fiber network with passive fiber addressing sensing optic cable, and can satisfy sensing optic cable can long-distance transmissions, and saves cost.
Press such scheme, can realize the sensor on the total system sensing optic cable is carried out any bypass or effectively setting by computer control software, to satisfy the special applications requirement in system's day-to-day operation.
Principle of work of the present utility model is: when broadband light is passed through fiber grating, fiber grating can carry out selective reflecting to this incident light, (bandwidth is about 0.1～0.5nm) usually to reflect the narrow band light that centre wavelength and sandwich layer index modulation phase place be complementary, this centre wavelength is referred to as bragg wavelengths, when the external world responds or vibrates, and when optical cable exerted an influence, pitch (d) changes, bragg wavelengths changes thereupon, by accurately measuring the variable quantity of the catoptrical bragg wavelengths of grating, just can obtain the vibratory output of fiber grating.
Computing machine is analyzed the optical fiber raster vibration amount.When vibrations that factor produced such as wind, must be large-area, promptly a plurality of optical fiber raster vibration sensors send similar waveform simultaneously, then are considered as the caused vibration of environmental factor, do not deal with; When optical fiber raster vibration sensor single or the setting some sends vibrational waveform, then carry out dynamic programming and calculate.
The design philosophy of algorithm be with the current measurement ripple signal of receiving and when the T cycle begins the reference wave signal of measuring wavelength ratio, obtain a difference, represent vibratory output with this difference, if vibratory output during greater than threshold value, then prompting has invasion and starts simultaneously and reports to the police.
The beneficial effects of the utility model are: 1, outdoor employing passive structures is realized the real-time monitoring to the circumference intrusion behavior, enhanced system reliability; 2, by utilizing fiber-optic grating sensor, spot that can the accurate in locating intrusion behavior, and anti-environment capacity is strong; 3, processing and the judgement by computing machine, the error and the interference that can intelligent distinguishing produce because of environment and climate change make system be subjected to the minimum that influences of temperature variation and climate change; 4, easy to maintenance, the disconnected cable of optical cable can be reported to the police, and can reuse by simple reparation.
Description of drawings
Fig. 1 is a structured flowchart of the present utility model
Fig. 2 is the workflow diagram of disposal system
Embodiment
Fig. 1 is a structured flowchart of the present utility model, comprising:
Be connected in series the passive fiber addressing sensing optic cable of a plurality of optical fiber raster vibration sensors, same adjacent two the fiber-optic grating sensor spacings of sensing optic cable are 5～10 meters;
The alert data processor, linking with sensing optic cable receives the signal of passive fiber addressing sensing optic cable, and the signal that becomes communication network to transmit its conversion of signals;
Computing machine connects with the alert data processor, receives data and analyzing and processing that the alert data processor transmits.Computing machine can directly connect with data processor, also can connect by Ethernet, realizes the monitoring of many computing machines.
If the distance of sensing optic cable and alert data processor is far away, the two can connect by optical communication network, and optical communication network is made of optical fiber switch and communications optical cable, because the communications optical cable cost is lower than sensing optic cable, has therefore saved cost.
Computing machine comprises data reception module; The wind and rain model database comprises the signal data of wind and rain state light fiber grating sensor; Judge first judge module of external environment, link with data reception module and wind and rain model database; Data processing module links with the output terminal of first judge module; Judge whether second judge module that the someone invades, link with the output terminal of data processing module; Warning device links with the output terminal of second judge module.
The Computer Processing principle is: setting cycle T at first, and when one-period T had just begun, the Bradley lattice wave of measuring record also this moment was as the reference wave signal, then:
In one-period T, if vibratory output (being the changing value of Bradley lattice wave) is less or because of the change in weather reason is bigger, then can judge not invasion, situation is as follows:
1) reference wave belongs to normal weather, becomes special weather suddenly, not invasion, and vibratory output is bigger, but can be measured systematic survey and ignored by weather;
2) reference wave belongs to normal weather, and weather is still normal during measurement, not invasion, and vibratory output is less;
3) reference wave belongs to special weather, and weather is still special during measurement, not invasion, and vibratory output is less;
4) reference wave belongs to special weather, becomes normal weather suddenly, not invasion, and vibratory output is bigger, but can be measured systematic survey and ignored by weather;
In one-period T, if more greatly or very big, then can judging, vibratory output has invasion, situation is as follows:
5) reference wave belongs to normal weather, becomes special weather suddenly, and invasion is arranged, because the common influence of invasion and weather, vibratory output is very big, the correct warning;
6) reference wave belongs to normal weather, and weather is still normal during measurement, and invasion is arranged, and vibratory output is bigger, Normal Alarm;
7) reference wave belongs to special weather, and weather is normal suddenly, and invasion is arranged, because the common influence of invasion and weather, vibratory output is very big, Normal Alarm;
8) reference wave belongs to special weather, and weather is still special during measurement, and invasion is arranged, because the common influence of invasion and weather, vibratory output is very big, Normal Alarm.
Because slight vibration can very big influence take place to vibratory output, therefore conventional ripple information comparing method can't be suitable for, so the utility model utilizes this high-efficient algorithm of dynamic programming to go to address this problem.
The state of design dynamic programming: f[i, j] in the expression reference wave before i information and the minimum change value of measuring preceding j information in the ripple.
Can design following state transition equation:
Total n information in the reference wave is measured total m information in the ripple, and then reference wave is f[n with the changing value of measuring ripple, m].
In sum, algorithm flow following (process flow diagram is as shown in Figure 2):
T just begins for one-period, obtains the reference wave signal;
Compare by data in the wind and rain model database and reference wave information, obtain current weather condition;
Measure ripple for each,, calculate the changing value of measuring ripple and reference wave, i.e. vibratory output by dynamic programming algorithm;
According to above-mentioned 8 kinds of situations and the threshold value that designs in advance, judge whether successively to report to the police.
In the utility model, each fiber-optic grating sensor is unit independently, sends separately signal respectively and passes to computing machine through the alert data processor and handle.Therefore, computing machine can be determined intrusion behavior from concrete fiber-optic grating sensor, thereby reaches pinpoint purpose.
Claims (6)
1. a Fibre Optical Sensor intelligently addressing circumference intrusion alarm system is characterized in that: include passive fiber addressing sensing optic cable, alert data processor and computing machine; Passive fiber addressing sensing optic cable is installed in security protection zone circumference and links with alert data processor signal port, and the FPDP and the computing machine of alert data processor join.
2. Fibre Optical Sensor intelligently addressing circumference intrusion alarm system according to claim 1, it is characterized in that: described passive fiber addressing sensing optic cable is by communication optical fiber and sensor fibre integrator, described sensor fibre is an optical fiber raster vibration sensor of gathering the Bradley lattice wave in real time, be connected in series a plurality of optical fiber raster vibration sensors by an optical fiber and constitute, carry out the distributed information collection by wavelength-division multiplex technique.
3. Fibre Optical Sensor intelligently addressing circumference intrusion alarm system according to claim 2, it is characterized in that: described fiber-optic grating sensor equidistantly is laid on the sensing optic cable along length, and adjacent two the fiber-optic grating sensor spacings of sensing optic cable are 0.5-6 rice.
4. Fibre Optical Sensor intelligently addressing circumference intrusion alarm system according to claim 2, it is characterized in that: described computing machine includes data reception module, first judge module, data processing module, second judge module and warning device; Wherein first judge module and data reception module link, and connect with data processing module, second judge module and the output terminal of the data processing module device taking alarm in parallel that links.
5. Fibre Optical Sensor intelligently addressing circumference intrusion alarm system according to claim 1 and 2, it is characterized in that: described computing machine connects by communication network with the alert data processor, and communication network is an Ethernet.
6. Fibre Optical Sensor intelligently addressing circumference intrusion alarm system according to claim 1 and 2 is characterized in that: described alert data processor connects by optical-fiber network with passive fiber addressing sensing optic cable.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010202779686U CN201829006U (en) | 2010-08-04 | 2010-08-04 | Optical fiber sensing intelligent addressing perimeter intrusion alarm system |
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| CN2010202779686U CN201829006U (en) | 2010-08-04 | 2010-08-04 | Optical fiber sensing intelligent addressing perimeter intrusion alarm system |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102509404A (en) * | 2011-09-24 | 2012-06-20 | 无锡科晟光子科技有限公司 | Environment compensation type wild-area full-optical fiber disturbance sensing enclosure type security monitoring system |
| CN102968868A (en) * | 2012-10-31 | 2013-03-13 | 武汉理工光科股份有限公司 | Fiber bragg grating perimeter intrusion behavior identification method and system based on time domain envelopment analysis |
| CN103337120A (en) * | 2013-06-26 | 2013-10-02 | 武汉理工光科股份有限公司 | Addressing method and system for quasi-distributed fiber bragg grating perimeter intrusion alarming system |
| CN105954791A (en) * | 2016-06-01 | 2016-09-21 | 长江大学 | Vibration ground wave fiber sensing detection system for prevention of burglary and excavation of underground historical relics |
| US9766141B2 (en) | 2014-08-28 | 2017-09-19 | Adelos, Inc. | System and method for dynamic event based IP addressing |
| CN107369282A (en) * | 2017-08-23 | 2017-11-21 | 武汉理工光科股份有限公司 | A kind of buried COTDR circumferences intrusion alarm system and signal processing method |
| CN108022401A (en) * | 2017-11-30 | 2018-05-11 | 南京南邮信息产业技术研究院有限公司 | The quick distribution method of perimeter defense system and system based on wireless senser |
| CN110260917A (en) * | 2019-06-18 | 2019-09-20 | 武汉理工大学 | Smart Logo label and boundary tablet condition monitoring system based on optical fibre optical grating sensing array |
| USRE49680E1 (en) | 2013-08-12 | 2023-10-03 | Adelos, Llc | Systems and methods for spread spectrum distributed acoustic sensor monitoring |
-
2010
- 2010-08-04 CN CN2010202779686U patent/CN201829006U/en not_active Ceased
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102509404A (en) * | 2011-09-24 | 2012-06-20 | 无锡科晟光子科技有限公司 | Environment compensation type wild-area full-optical fiber disturbance sensing enclosure type security monitoring system |
| CN102509404B (en) * | 2011-09-24 | 2014-08-06 | 无锡科晟光子科技有限公司 | Environment compensation type wild-area full-optical fiber disturbance sensing enclosure type security monitoring system |
| CN102968868A (en) * | 2012-10-31 | 2013-03-13 | 武汉理工光科股份有限公司 | Fiber bragg grating perimeter intrusion behavior identification method and system based on time domain envelopment analysis |
| CN102968868B (en) * | 2012-10-31 | 2014-12-10 | 武汉理工光科股份有限公司 | Fiber bragg grating perimeter intrusion behavior identification method and system based on time domain envelopment analysis |
| CN103337120A (en) * | 2013-06-26 | 2013-10-02 | 武汉理工光科股份有限公司 | Addressing method and system for quasi-distributed fiber bragg grating perimeter intrusion alarming system |
| USRE49680E1 (en) | 2013-08-12 | 2023-10-03 | Adelos, Llc | Systems and methods for spread spectrum distributed acoustic sensor monitoring |
| US9766141B2 (en) | 2014-08-28 | 2017-09-19 | Adelos, Inc. | System and method for dynamic event based IP addressing |
| US10203264B2 (en) | 2014-08-28 | 2019-02-12 | Adelos, Inc. | Noise management for optical time delay interferometry |
| US11333573B2 (en) | 2014-08-28 | 2022-05-17 | Adelos, Inc. | Noise management for optical time delay interferometry |
| CN105954791A (en) * | 2016-06-01 | 2016-09-21 | 长江大学 | Vibration ground wave fiber sensing detection system for prevention of burglary and excavation of underground historical relics |
| CN107369282A (en) * | 2017-08-23 | 2017-11-21 | 武汉理工光科股份有限公司 | A kind of buried COTDR circumferences intrusion alarm system and signal processing method |
| CN108022401A (en) * | 2017-11-30 | 2018-05-11 | 南京南邮信息产业技术研究院有限公司 | The quick distribution method of perimeter defense system and system based on wireless senser |
| CN110260917A (en) * | 2019-06-18 | 2019-09-20 | 武汉理工大学 | Smart Logo label and boundary tablet condition monitoring system based on optical fibre optical grating sensing array |
| CN110260917B (en) * | 2019-06-18 | 2022-07-19 | 武汉理工大学 | Intelligent identification label and monument condition monitoring system based on fiber grating sensing array |
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Denomination of utility model: Optical fiber sensing intelligent addressing perimeter intrusion alarm system Effective date of registration: 20130830 Granted publication date: 20110511 Pledgee: Wuhan rural commercial bank Limited by Share Ltd Optics Valley branch Pledgor: Antong Technology Business Development Co., Ltd. Registration number: 2013990000629 |
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Date of cancellation: 20131031 Granted publication date: 20110511 Pledgee: Wuhan rural commercial bank Limited by Share Ltd Optics Valley branch Pledgor: Antong Technology Business Development Co., Ltd. Registration number: 2013990000629 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Optical fiber sensing intelligent addressing perimeter intrusion alarm system Effective date of registration: 20131031 Granted publication date: 20110511 Pledgee: Wuhan rural commercial bank Limited by Share Ltd Optics Valley branch Pledgor: Antong Technology Business Development Co., Ltd. Registration number: 2013990000805 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20141127 Granted publication date: 20110511 Pledgee: Wuhan rural commercial bank Limited by Share Ltd Optics Valley branch Pledgor: Antong Technology Business Development Co., Ltd. Registration number: 2013990000805 |
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Decision date of declaring invalidation: 20210906 Decision number of declaring invalidation: 51725 Granted publication date: 20110511 |
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