CN204155380U - The anti-invading alarm device of a kind of urban pipe network based on Fibre Optical Sensor - Google Patents
The anti-invading alarm device of a kind of urban pipe network based on Fibre Optical Sensor Download PDFInfo
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- CN204155380U CN204155380U CN201420681096.8U CN201420681096U CN204155380U CN 204155380 U CN204155380 U CN 204155380U CN 201420681096 U CN201420681096 U CN 201420681096U CN 204155380 U CN204155380 U CN 204155380U
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Abstract
The utility model discloses the anti-invading alarm device of a kind of urban pipe network based on Fibre Optical Sensor, comprise detection optical fiber and vibration flip flop equipment, described vibration flip flop equipment comprise be arranged on below well lid, be set in detection optical fiber outside surface and telescopic deformation unit, and for the fixing stationary installation of deformation unit; The optical cable of described detection optical fiber is connected with deformation unit.In use, when invader's open manhole cover, the deformation unit generation deformation in vibration flip flop equipment also produces vibration to the utility model, and causes detection optical fiber to vibrate, thus senses that well lid is opened; And Stability Analysis of Structures, without the need to periodic detection.The scheme that the utility model provides directly can cause promptness and the amplification of optical fiber induction vibration signal, thus reach event occur legacy systems just can sense vibration signal and carry out the object of alarm in time.
Description
Technical field
The utility model relates to technical field of optical fiber sensing, specifically relates to the anti-invading alarm device of a kind of urban pipe network based on Fibre Optical Sensor.
Background technology
In Municipal safety installations, there is a large amount of underground works, comprise eight large pipelines (plumbing, communication, electric power, combustion gas ... .. etc.).The safety of these underground people's commune facilities and municipal equipment, is significant for the peaceful city of structure.For a long time, it is not enough to there is " on important place lightly under " in urban safety construction, brings potential safety hazard thus.Such as many places urban waterlogging causes underground well lid to lose and injures personal security; How the long-term unauthorized person of cable duct invades, theft electric power cable etc.
In recent years, in the smart city construction that various places are extensively carried out, a kind of vibration detecting technology based on optical fiber is progressively used to the security monitoring of underground installation.
This technology make use of fibre coherence technique to realize sensing to the ambient vibration of optical fiber laying work area and the principle of location.Utilize the optical fiber (optical cable) with vibrating sensing function, be layed in urban Underground pipeline (irrigation canals and ditches), thus realize the security monitoring descending facility over long distances.、
But for Municipal underground installation, most important security monitoring should concentrate on the surface openings of various underground installation, by the illegal of monitoring well lid with surprisingly to open, monitor illegally the entering of personnel, prevent well lid from losing the district's potential safety hazard caused.Therefore, how to realize the security monitoring of underground installation, topmost link be realize to various well lid mouth accurate, monitor in real time.For this reason, present design proposes a kind of brand-new well lid monitoring technique, combines with optical fiber vibration sensing technology, builds the long distance control system being suitable for the management and control of Urban Underground installation security thus.
The safety of maintain infrastructure is a basic demand of social stability, rapid economic development.Safety monitoring is carried out to infrastructure such as telecommunication optical fiber (comprising seabed fiber), high-voltage fence, oil pipeline, gas pipe line, cable ducts, be not only the guarantee of these facility actualizing technology sexual functions, avoid causing heavy economic losses especially, maintain social stability development effective means.Particularly along with the fast development of infrastructure construction, present the new feature that areal distribution is wide, complexity is high, importance improves further, this scope just making infrastructure be endangered, frequency also increase thereupon, the difficulty of safety monitoring, importance also corresponding increase.According to incompletely statistics, the only pipe leakage that causes because of external world every year of China or explode upper over thousands of time, direct economic loss reaches several hundred million yuan.The loss such as the environmental pollution brought thus, commercial credit is difficult to estimate especially.
In order to safeguard the integrality of main line, prevent damage from third-party, the operation departments such as pipeline, electrical network, communication network that are directly responsible for have dropped into huge manpower and financial resources.Governments at all levels and various circles of society also pay special attention to, and a large amount of work has all been done in the aspects such as concrete strick precaution, public opinion, special administration of making laws from special project.State Council once held teleconference, and dispose and carry out the special campaigns of oil pipeline production public security order, the Ministry of Public Security also increases the dynamics of hitting stolen crime, and have received certain effect.
Various pipeline transportation safety monitoring technology arises at the historic moment and development in this strong market demand, and current existing pipe safety production monitoring technique mainly contains " tube fluid mechanical state detection technique ", " distributed fiber optic temperature and stress monitoring technology ", " sound wave monitoring technology ", " M-Z fibre coherence technique ", " OTDR optical time domain reflection technology ", " single core reaction type fibre coherence technique " etc.
Due to the monitoring of long distance trunk line, be easily subject to the impact of electromagnetic interference (EMI) and the difficulty of long distance power supply, therefore, types of fiber technology becomes the technical way of safety monitoring and the prevention artificial destruction carrying out the industries such as electric power, communication and oil and gas pipes.Fibre Optical Sensor is based on optical theory, non-light quantity is converted into light quantity and measures.Using optical fiber as the sensor of information transmission media, there is the incomparable advantage of other sensor a series of: not by the interference of electromagnetic field, the occasion of strong-electromagnetic field can be applied in; Electromagnetic disturbance can not be produced; Induction end without the need to power supply, use, easy to maintenance; Corrosion-resistant, essential safety etc.And fiber orientation monitoring can carry out early monitoring, location and early warning to the various actions of threat tube safety, " provide for a rainy day ", reserve enough time to prevent to pipeline maintenance person and destroy or strengthen the words of taking precautions against, thoroughly will reverse the unfavorable situation of the current this passive leak stopping of operation department, fundamentally avoid loss.
Current existing types of fiber long Distance positioning monitoring technique mainly comprises " distributed fiber optic temperature and stress monitoring technology ", " M-Z fibre coherence technique ", " OTDR optical time domain reflection technology ", " single core reaction type fibre coherence technique ", all kinds of know-why is different, and the effect reached also is had nothing in common with each other.But basic principle is all responded to by optical fiber directly to touch optical fiber, or pass through the vibration signal such as mechanical vibration, buckles, sound of the medium such as soil, structures transmission.Need the material such as oil and gas pipes, communication trunk optical fiber, cable carrying out security monitoring to be often embedded in underground, also need to bury underground along monitoring pipelines for the optical fiber of safety monitoring.Traditional distribution method is directly laid along fender periphery by armored fiber optic, and optical fiber is that mechanical vibration, the buckles transmitted by soil is carried out invasion vibration and judge.And soil buries and can form a great weakening effect for the vibration signal such as mechanical vibration, buckles, cause in the intrusion behavior time of origin a very long time, system can't sense enough vibration signals, carries out safety alarm.And the armored fiber optic of direct-burried also can play a damping effect to vibration information from the pe sheath installed additional as protection optical fiber, armouring wire, cable cream, filling top grade self.Therefore, in the middle of real world applications process, often want intrusion behavior really very close to fender, when even having touched optical fiber, system has just given the alarm, and leaves the extremely limited time to responding.If responding not in time, fender just may be destroyed, and does not reach the effect of " providing for a rainy day ", " in advance monitoring ".
For solving the problem, applicant has applied for a device on May 26th, 2014, notification number is CN203838833U, the vibration flip flop equipment of this warning device is linked up with by well lid, traction hook, back-moving spring and silk thread form, time in use, if well lid is opened, can there is deformation in traction hook, and come off from well lid hook; In process, traction hook drives back-moving spring vibration, back-moving spring by vibration passing to optical fiber, thus trigger alarm device.Make traction hook keep certain elasticity, to make, when well lid is opened, deformation to occur for needs always.Therefore need make regular check on and upgrade traction hook, to prevent Fatigue Deformation.In use, life-span shorter slightly inconvenience.
Summary of the invention
Can not sense enough vibration signals and the problem in serviceable life in time for optical fiber in existing fiber class well location passage inner position monitoring technique, the purpose of this utility model is to provide a kind of urban pipe network based on Fibre Optical Sensor anti-invading alarm device.
In order to achieve the above object, the utility model adopts following technical scheme: the anti-invading alarm device of a kind of urban pipe network based on Fibre Optical Sensor, comprise detection optical fiber and vibration flip flop equipment, described vibration flip flop equipment comprise be arranged on below well lid, be set in detection optical fiber outside surface and telescopic deformation unit, and for the fixing stationary installation of deformation unit; The optical cable of described detection optical fiber is connected with deformation unit.
Deformation unit in use, can be remained on original state by the technical program, avoids it to be in deformed state generation Fatigue Deformation always; Make serviceable life longer; When well lid is opened, deformation unit generation deformation, thus cause deformation unit to stretch, the stretching of deformation unit drives the stretching of detection optical fiber and hook, thus touches resonant springs, plays alarm function.
Further, described deformation unit comprises at least one back-moving spring and a brandreth, and the lower end of back-moving spring is connected with brandreth, one end of described detection optical fiber cross back-moving spring middle part or along wherein at least one ring back-moving spring around.
Deformation unit adopts the combination of two springs and an iron hoop, forms a resonance structure.This resonance structure easily produces vibration.During use, the upper end of spring is fixed on the lower surface of well lid; When well lid is opened, resonance structure vibrates, and vibration passing is to detection optical fiber.Thus sense that well lid is opened.
Described vibration flip flop equipment is arranged on detection optical fiber outside, for amplifying vibration signal, only need can realize detecting function with an optical fiber.Therefore, in the pipeline that will monitor or isolated island, optical cable can be laid separately, also can utilize existing, be laid on the communication cable in urban duct.For existing optical cable, need to leave a core slack, be used as detection optical fiber for this technique device, require to meet G652/G655/G657 standard, and each well location is all without the need to power supply.
Further, described stationary installation comprises brandreth or sucker or hook or screw.
Because the lower surface of well lid is when making, more smooth.Not used for the structure of fixing deformation unit.Therefore stationary installation is set with auxiliary fixing deformation unit.The fibre core minimum number of described detection optical fiber can be a core.
Further, described deformation unit comprises at least one back-moving spring, a brandreth and a resonant springs, the lower end of back-moving spring is connected with brandreth, also comprise a resonant springs and a hook, back-moving spring is arranged at the top of brandreth, hook inserts in back-moving spring, the two ends of hook respectively with one end snapping of corresponding back-moving spring and resonant springs, described detection optical fiber comprises a wound portion and a connecting portion, wound portion is wound in back-moving spring, and connecting portion is arranged at the middle part of resonant springs.
For keeping the integrality of warning device, difficult drop-off and structure are not damaged; Brandreth can be adopted; Channel upper wall below well lid is fixed in one end of brandreth, and the other end fixes deformation unit.
For ensureing the stability connected, can adopt hook or screw, one end of hook or screw is inserted or is fixed to channel upper wall below well lid, and the other end of hook or screw is used for being connected with deformation unit.
The beneficial effects of the utility model are: when invader's open manhole cover, deformation unit generation deformation in vibration flip flop equipment also causes detection optical fiber formation vibration at least one times, various different well lid being opened behaviorism theory is that unified spring triggers vibration signal, the signal transacting terminal being convenient to rear end accurately identifies, reduce misreport of system rate, improve the reliability of whole system, detect sensitive, structure is simple.Device does not need power supply, decreases the consumption to the energy and dependence, there is not the Corrosion Potential of electric logging equipment, improves in serviceable life of complicated, severe underground environment and reliability, and Stability Analysis of Structures, without the need to periodic detection.The scheme that the utility model provides directly can cause promptness and the amplification of optical fiber induction vibration signal, thus reach event occur legacy systems just can sense vibration signal and carry out the object of alarm in time.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model.
Schematic diagram when Fig. 2 is the utility model use.
Fig. 3 is that another kind of the present utility model uses schematic diagram.
Fig. 4 is another kind of structural representation of the present utility model.
In figure, 1---iron hoop, 2---back-moving spring, 3---optical fiber, 4---well lid, 5---hook, 6---resonant springs, 31---wound portion 32---connecting portion.
Embodiment
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, setting forth the utility model further below in conjunction with concrete diagram.
The utility model utilizes the change of optical fiber 3 type selecting and the mode of laying, and amplifying fiber 3 responds to the vibration signal of intrusion event, makes system reach the object of the security monitoring of expection.See Fig. 1 and Fig. 2, at each well location place, be provided with the anti-invading alarm device of urban pipe network based on optical fiber 3 sensing, this warning device comprises detection optical fiber 3 and vibration flip flop equipment, described vibration flip flop equipment comprise be arranged on below well lid 4, be set in detection optical fiber 3 outside surface and telescopic deformation unit, and for the fixing stationary installation of deformation unit; Be fixed on below well lid 4 by stationary installation by deformation unit, the optical cable of described detection optical fiber 3 is connected with deformation unit.
Deformation unit in use, can be remained on original state by the technical program, avoids it to be in deformed state generation Fatigue Deformation always; Make serviceable life longer; When well lid 4 is opened, deformation unit generation deformation, due to when well lid 4 is in opening procedure, and nonlinearity is moved away, thus cause deformation unit to rock, the stretching of deformation unit is rocked and is driven detection optical fiber 3 to vibrate, thus trigger alarm device, play alarm function.
Wherein, deformation unit is in order to play the effect occurring because of deformation to vibrate, when deformation unit because when deformation occurs in stretching, the upper end of deformation unit is connected with well lid and is in suspension status, therefore described deformation unit can comprise back-moving spring 2 or bungee or the rope that stretches.Deformation unit in use, as long as shake, just can touch detection optical fiber 3 and vibrate, deformation unit can select back-moving spring 2 or bungee or flexible rope etc., preferably, selects bungee better, bungee in use, can use the bungee that bore is less, such bungee, in the process of being stretched, is easily pulled off, such well lid 4 is when opening, bungee is first stretched, and then disconnects, thus gives the vibration that detection optical fiber 3 one is larger.
When adopting back-moving spring 2, optical cable can be passed or be surrounded on back-moving spring 2; When well lid 4 is touched, the stretching of leading back-moving spring 2 can be drawn, thus drive optical cable to rock.
See Fig. 2, vibration is touched in order to better make deformation, therefore deformation unit is arranged to resonance structure, described deformation unit comprises two back-moving springs 2 and an iron hoop 1, the lower end of two back-moving springs 2 is connected with the both sides of iron hoop 1 respectively, one end of described detection optical fiber 3 cross two back-moving springs 2 middle part or along wherein one or two back-moving spring around.Multiple ring spring can certainly be adopted around iron hoop 1.
Deformation unit adopts the combination of two springs and an iron hoop 1, forms a resonance structure.This resonance structure easily produces vibration.During use, the upper end of spring is fixed on the lower surface of well lid 4; When well lid 4 is opened, resonance structure vibrates, and vibration passing is to detection optical fiber 3.Thus sense that well lid 4 is opened.Resonance structure both can adopt aforesaid hang, also compress mode can be adopted, as shown in Figure 3, during use, be arranged on by iron hoop 1 bottom hoistway mouth, the upper end of spring and well lid compress and compression set occur, when well lid is opened, spring reset, resonance structure vibrates, thus touches detection optical fiber vibration.
It is outside that described vibration flip flop equipment is arranged on detection optical fiber 3, for amplifying vibration signal, only need can realize detecting function with an optical fiber 3.Therefore, in the pipeline that will monitor or isolated island, optical cable can be laid separately, also can utilize existing, be laid on the communication cable in urban duct.For existing optical cable, need to leave a core slack 3, be used as detection optical fiber 3 for this technique device, require to meet G652/G655/G657 standard, and each well location is all without the need to power supply.
In order to stationary installation be simplified, structure is simple, and stationary installation can be set to sucker or hook or screw.
Because the lower surface of well lid 4 is when making, more smooth.Not used for the structure of fixing deformation unit.Therefore stationary installation is set with auxiliary fixing deformation unit.
For keeping the integrality of well lid 4, structure is not damaged; Sucker can be adopted; The absorption end of sucker is adsorbed on the lower surface of well lid 4, and the link of sucker is generally provided with hook portion, is connected with deformation unit by hook portion.
For ensureing the stability connected, can adopt hook or screw, one end of hook or screw is inserted or is fixed on well lid 4, and the other end of hook or screw is used for being connected with deformation unit.
Wherein, the fibre core minimum number of described detection optical fiber 3 can be a core.
Another kind as resonance structure is out of shape, as shown in Figure 4: described deformation unit comprises two back-moving springs 2 and an iron hoop 1, the lower end of two springs is connected with the both sides of iron hoop 1 respectively, also comprise a resonant springs 6 and two hooks 5, resonant springs 6 is arranged at the top of iron hoop 1, two hooks 5 insert in two back-moving springs respectively, the two ends of hook 5 respectively with one end snapping of corresponding back-moving spring and resonant springs 6, described detection optical fiber comprises two wound portions 31 and a connecting portion 32, two wound portions 31 are wound in two resonant springs 6 respectively, connecting portion 32 is arranged at the middle part of resonant springs 6.
This resonance structure both may be used for back-moving spring 2 extended state, also may be used for back-moving spring 2 compressive state, detection optical fiber is when arranging, can first be wound around under upper one of them back-moving spring 2, then the middle part of resonant springs 6 is crossed, again another back-moving spring 2 is wound around, thus forms two wound portions 31 and a connecting portion 32; Because detection optical fiber is to being wound in back-moving spring 2, therefore can high-speed receiving to vibration signal.
One end of described detection optical fiber 3 cross two springs middle part or along wherein one or two ring spring around.
More than show and describe ultimate principle of the present utility model, principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and instructions just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (6)
1. the anti-invading alarm device of the urban pipe network based on Fibre Optical Sensor, comprise detection optical fiber and vibration flip flop equipment, it is characterized in that: described vibration flip flop equipment comprise be arranged on below well lid, be set in detection optical fiber outside surface and telescopic deformation unit, and for the fixing stationary installation of deformation unit; The optical cable of described detection optical fiber is connected with deformation unit.
2. the anti-invading alarm device of a kind of urban pipe network based on Fibre Optical Sensor according to claim 1, is characterized in that: described deformation unit comprises back-moving spring or bungee or the rope that stretches.
3. the anti-invading alarm device of a kind of urban pipe network based on Fibre Optical Sensor according to claim 1, it is characterized in that: described deformation unit comprises at least two back-moving springs and a brandreth, the lower end of two back-moving springs is connected with the both sides of brandreth respectively, one end of described detection optical fiber cross at least one back-moving spring middle part or along wherein at least one ring back-moving spring around.
4. the anti-invading alarm device of a kind of urban pipe network based on Fibre Optical Sensor according to claim 1, is characterized in that: described stationary installation comprises brandreth or sucker or hook or screw.
5. the anti-invading alarm device of the urban pipe network based on Fibre Optical Sensor according to claim 1, is characterized in that: the fibre core minimum number of described detection optical fiber can be a core.
6. the anti-invading alarm device of a kind of urban pipe network based on Fibre Optical Sensor according to claim 1, it is characterized in that: described deformation unit comprises at least one back-moving spring and a brandreth, the lower end of back-moving spring is connected with brandreth, also comprise a resonant springs and a hook, resonant springs is arranged at the below of iron hoop, optical fiber passes through resonant springs, hook inserts in back-moving spring, the two ends of hook respectively with one end snapping of corresponding back-moving spring and resonant springs, described detection optical fiber comprises a wound portion and a connecting portion, wound portion is wound in back-moving spring, connecting portion is arranged at the middle part of resonant springs.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105261134A (en) * | 2015-10-28 | 2016-01-20 | 贾波 | City pipe network anti-intrusion alarm based on fiber sensing |
| CN106846690A (en) * | 2016-12-28 | 2017-06-13 | 安徽扬子弘福安防有限公司 | A kind of guard against theft and alarm system based on circumference security protection |
| CN109243123A (en) * | 2018-08-31 | 2019-01-18 | 北京百世通管道科技有限公司 | A kind of well lid status real time monitor early warning system and method |
| CN110942575A (en) * | 2019-10-23 | 2020-03-31 | 深圳供电局有限公司 | Alarm device |
| CN110969791A (en) * | 2019-11-28 | 2020-04-07 | 深圳供电局有限公司 | Anti-invasion cable well cover and anti-invasion alarm device thereof |
| CN110987034A (en) * | 2019-12-18 | 2020-04-10 | 广州劲联智能科技有限公司 | Optical fiber sensing device based on hydraulic linkage |
| CN111157103A (en) * | 2020-01-09 | 2020-05-15 | 国网山西省电力公司太原供电公司 | Well lid monitoring system and method based on optical cable vibration conduction |
| CN111192424A (en) * | 2020-01-09 | 2020-05-22 | 国网山西省电力公司太原供电公司 | Optical cable intrusion monitoring system and method based on optical fiber sensing technology |
| CN115424399A (en) * | 2022-09-02 | 2022-12-02 | 复旦大学 | Distributed optical fiber well lid switch monitoring system and method |
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2014
- 2014-11-14 CN CN201420681096.8U patent/CN204155380U/en active Active
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105261134A (en) * | 2015-10-28 | 2016-01-20 | 贾波 | City pipe network anti-intrusion alarm based on fiber sensing |
| CN105261134B (en) * | 2015-10-28 | 2018-05-08 | 贾波 | The anti-intrusion alarm system of urban pipe network based on Fibre Optical Sensor |
| CN106846690A (en) * | 2016-12-28 | 2017-06-13 | 安徽扬子弘福安防有限公司 | A kind of guard against theft and alarm system based on circumference security protection |
| CN106846690B (en) * | 2016-12-28 | 2019-04-09 | 安徽扬子弘福安防有限公司 | A kind of anti-theft alarm system based on circumference security protection |
| CN109243123A (en) * | 2018-08-31 | 2019-01-18 | 北京百世通管道科技有限公司 | A kind of well lid status real time monitor early warning system and method |
| CN110942575A (en) * | 2019-10-23 | 2020-03-31 | 深圳供电局有限公司 | Alarm device |
| CN110942575B (en) * | 2019-10-23 | 2021-04-06 | 深圳供电局有限公司 | Alarm device |
| CN110969791A (en) * | 2019-11-28 | 2020-04-07 | 深圳供电局有限公司 | Anti-invasion cable well cover and anti-invasion alarm device thereof |
| CN110987034A (en) * | 2019-12-18 | 2020-04-10 | 广州劲联智能科技有限公司 | Optical fiber sensing device based on hydraulic linkage |
| CN111157103A (en) * | 2020-01-09 | 2020-05-15 | 国网山西省电力公司太原供电公司 | Well lid monitoring system and method based on optical cable vibration conduction |
| CN111192424A (en) * | 2020-01-09 | 2020-05-22 | 国网山西省电力公司太原供电公司 | Optical cable intrusion monitoring system and method based on optical fiber sensing technology |
| CN115424399A (en) * | 2022-09-02 | 2022-12-02 | 复旦大学 | Distributed optical fiber well lid switch monitoring system and method |
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