CN203255212U - Dangerous source signal catching system and protective screening monitoring system - Google Patents
Dangerous source signal catching system and protective screening monitoring system Download PDFInfo
- Publication number
- CN203255212U CN203255212U CN 201220737043 CN201220737043U CN203255212U CN 203255212 U CN203255212 U CN 203255212U CN 201220737043 CN201220737043 CN 201220737043 CN 201220737043 U CN201220737043 U CN 201220737043U CN 203255212 U CN203255212 U CN 203255212U
- Authority
- CN
- China
- Prior art keywords
- fiber
- signal
- sensor
- matter sources
- dangerous matter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 45
- 230000001681 protective effect Effects 0.000 title abstract 4
- 238000012216 screening Methods 0.000 title 1
- 239000000835 fiber Substances 0.000 claims abstract description 60
- 239000013307 optical fiber Substances 0.000 claims abstract description 14
- 230000008054 signal transmission Effects 0.000 claims abstract description 14
- 238000006073 displacement reaction Methods 0.000 claims description 34
- 230000003287 optical effect Effects 0.000 claims description 12
- 230000008859 change Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 2
- 230000006837 decompression Effects 0.000 abstract 3
- 230000005540 biological transmission Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 7
- 238000004458 analytical method Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 230000006378 damage Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 241000931526 Acer campestre Species 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 230000008034 disappearance Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000002929 anti-fatigue Effects 0.000 description 1
- 230000000703 anti-shock Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 230000009993 protective function Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Images
Landscapes
- Emergency Alarm Devices (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
本实用新型涉及一种危险源信号捕捉系统和防护网监测系统。其中危险源信号捕捉系统包括：光纤光栅传感器或者由所述光纤光栅传感器构成的分布式阵列，所述光纤光栅传感器安装在防护网的减压环上；光纤光栅解调仪；以及信号传输光纤；所述光纤光栅解调仪与所述光纤光栅传感器或所述分布式阵列通过信号传输光纤相连接；且其中，所述光纤光栅传感器或者所述分布式阵列感测减压环的变形量，并通过信号传输光纤将感测信号传送给所述光纤光栅解调仪。该防护网监测系统包括：危险源信号捕捉系统；信号处理系统；报警系统，在所述信号处理系统确定减压环变形量发生和/或达到危险程度的情况下，以一种或多种方式发出报警信号和/或情报信息。
The utility model relates to a dangerous source signal capturing system and a protective net monitoring system. Wherein the dangerous source signal capture system includes: a fiber grating sensor or a distributed array composed of the fiber grating sensor, the fiber grating sensor is installed on the decompression ring of the protective net; a fiber grating demodulator; and a signal transmission fiber; The fiber grating demodulator is connected to the fiber grating sensor or the distributed array through a signal transmission fiber; and wherein the fiber grating sensor or the distributed array senses the deformation of the decompression ring, and The sensing signal is transmitted to the fiber grating demodulator through the signal transmission optical fiber. The protective net monitoring system includes: a signal capture system for hazard sources; a signal processing system; and an alarm system. When the signal processing system determines that the deformation of the decompression ring occurs and/or reaches a dangerous level, Issue warning signals and/or intelligence messages.
Description
Technical field
The utility model relates to the technical field of automatic monitoring, particularly, relates to the technical field of railway anti-disaster safety monitoring.
Background technology
The railway system of China is in the period of rapid construction and development, and along with the High-speed Railway Network scale enlarges rapidly, technical equipment is fast lifting also.Yet, China is vast in territory, climate environment is changeable, complicated geological, neotectonic movement are very strong, and the geologic hazard frequent occurrences such as landslide, avalanche, mud-rock flow have caused serious harm and massive losses to the safety traffics such as railway, highway, people's life and national wealth.Traffic safety and passenger's life securities such as railway, highway in the geologic hazard serious threat.High speed railway particularly, in case disconnected road occurs, thousands of passenger is detained the other places, can not arrive the destination on time, normal production, orders of life also are broken, and bring enormous pressure to social stability, bring the indirect economic loss that is difficult to estimate also for simultaneously traffic operation department and passenger., actively take measures, monitoring and warning is carried out in various geologic hazards as far as possible great profound significance and impact for this reason.
Existing high gradient slope operation security anti-disaster monitoring and warning technology relate generally to the foreign matters such as high gradient slope geologic hazard disaster prevention safety monitoring and warning, rockfall and invade automatic monitoring with forewarn system technology, disaster prevention and alarm system data acquisition transmission technology research and slope disaster resistant safety monitoring system technology detailed rules for the implementation and safeguard use management method etc.According to the difference in foreign matter source, invade two aspects from high gradient slope unstability and rockfall respectively, from the angle of active monitoring and passive monitoring, railway road is carried out monitoring technique research simultaneously.Conventional guard technology is realized by active protecting net system and passive protection net are installed.
Aspect high gradient slope unstability and foreign matter encroachment line monitoring technique, domestic and international ongoing research and the following problem of application ubiquity: at first, part monitoring equipment somewhat expensive can't be widely applied; Secondly, often occur because of the improper breakage that causes of testing element installation method and the inaccurate phenomenon of data; Again, definite relatively difficulty of forecasting model and warning trigger condition; At last, endurance issues is more outstanding, and particularly testing element is subjected to rough weather to affect easy inefficacy.
The utility model content
At present, ubiquitous problem mainly contains in active monitoring system and the passive monitoring system research:
(1) shortage not yet combines Landslide Mechanism and Study on Prediction and Forecast for the analysis of slope instability origin mechanism;
(2) applicability of existing slide prediction theoretical model is relatively poor, for the mechanics of slope deforming develop and the Study on Prediction and Forecast dynamics of dynamic trend inadequate;
(3) researchist biases toward the stability of using single index to estimate side slope, lacks the comprehensive forecasting criterion of landslide disaster;
(4) there is the clear and definite not problem of criterion of slope instability;
(5) have that monitoring location is improper, there is defective etc. in the monitoring scheme means, cause that system is low fails to report and report by mistake the serious problem such as phenomenon.
For the problems referred to above, the utility model proposes a kind of safety monitoring technology that is used for railway anti-disaster that overcomes the deficiencies in the prior art and meet the economical and efficient demand.
According to an aspect of the present utility model, a kind of dangerous matter sources signal capture system is provided, this dangerous matter sources signal capture system comprises: fiber-optic grating sensor or the distributive array that is made of described fiber-optic grating sensor, described fiber-optic grating sensor are installed on the pressure-reducing ring of grille guard; Fiber Bragg grating (FBG) demodulator; And signal transmission fiber; Described fiber Bragg grating (FBG) demodulator is connected by signal transmission fiber with described fiber-optic grating sensor or described distributive array; Wherein, described fiber-optic grating sensor or the strain of described distributive array sensing pressure-reducing ring, and send sensing signal to described fiber Bragg grating (FBG) demodulator by signal transmission fiber.
Described fiber Bragg grating (FBG) demodulator carries out demodulation process to the optical signal that reflects from described fiber-optic grating sensor, and draws the wavelength signals of reflector laser, draws the dangerous matter sources situation on the monitoring point at each fiber-optic grating sensor place according to result.
Preferably, laser beam emitting device is used for generating laser; And input/output port, be used for Laser output to signal transmission fiber; Described signal transmission fiber is connected with fiber-optic grating sensor, and laser turns back to described fiber Bragg grating (FBG) demodulator after the fiber-optic grating sensor reflection; Wherein, laser is when described fiber-optic grating sensor internal reflection, if be subject to outside effect, the wavelength of reflector laser can change, and has predetermined correlativity between described variation and the external action.
According to another aspect of the present utility model, a kind of signal handling equipment is provided, described signal handling equipment comprises: signal receiving device and the processor unit that is connected with described signal receiving device; Described signal receiving device is connected with described dangerous matter sources signal capture system, is used for receiving the signal from above-described dangerous matter sources capture system; Processor unit, be arranged to by analyzing definite:
1) which fiber-optic grating sensor each optical maser wavelength signal relates to;
2) the pressure-reducing ring deflection of the representative of the variation of the wavelength of related laser and correspondence;
3) whether described pressure-reducing ring deflection reaches hazard level.
According to another aspect of the present utility model, a kind of grille guard monitoring system is provided, comprising:
Foregoing dangerous matter sources signal capture system;
The foregoing signal handling equipment that is connected with described dangerous matter sources signal capture system;
The warning that is connected with described signal handling equipment determines that in described signal handling equipment the pressure-reducing ring deflection occurs and/or reaches in the situation of hazard level, sends alerting signal and/or information in one or more modes.
Preferably, described grille guard monitoring system comprises one or more described dangerous matter sources signal capture system, and described one or more dangerous matter sources signal capture system provides the information of collecting to one or more described signal handling equipments.
The utility model has the advantage of, select monitoring pressure-reducing ring change in displacement, rather than monitor the tension variations situation of drawing anchor line, avoided drawing the anchor line relax level inconsistent because of each grille guard in the actual condition, cause every to draw the tension force on the anchor line inconsistent, can't correctly judge actual truth; Also avoided being installed on the grille guard supporting rope unstable because of vibration signal, and caused can't Correct Analysis judging the vibration signal of foreign matter encroachment line, and the wrong report that causes and fail to report phenomenon.Adopt fiber-optic grating sensor and Transmission Fibers with matching, can implementation structure simple, strong adaptability, good stability monitoring system, but equal long-term stable operation under railway depopulated zone, non-electricity zone and rugged environment especially.And, even when dangerous matter sources slightly has change but not yet true dangerous situation occurs, fiber-optic grating sensor also can continuously, in real time, dynamically be measured the stress parameters (ability trigger alarm switch is to send alerting signal when need not to wait until that pressure-reducing ring surpasses predetermined threshold value of warning) that pressure-reducing ring bears according to its actual stressing conditions, thereby can and find in time that for the route handling labor possible dangerous situation provides accurate and full and accurate data.
Description of drawings
Fig. 1 is the soft protecting net monitoring system scheme drawing according to the utility model embodiment;
Fig. 2 is the soft protecting net monitoring scheme scheme drawing according to the utility model embodiment;
Fig. 3 is the fiber grating displacement sensor structural representation according to the utility model embodiment.
The specific embodiment
For making the purpose of this utility model, structure and advantage clearer, below in conjunction with accompanying drawing the utility model is described in detail further.
Protecting net system is to be arranged at certain position on the slope take diamond wire netting or ring network as main flexible fence; be used for tumbling stone (or junk) to avoid it to destroy the object of intending protection on the interception slope, generally consisted of by diamond wire netting or belt net (additional layer of steel wire grid when needing interception fritter falling rocks), fixed system (anchor pole, draw anchor line, pedestal and supporting rope), pressure-reducing ring and four main portions of steel column.Pressure-reducing ring wear be hung on passive net supporting rope and on draw on the anchor line, when supporting rope and on when drawing the suffered pulling force of anchor line to meet or exceed setting value, by the displacement absorbed energy that deforms, avoid other member failures, system is played overload protective function.According to the utility model, by the distortion of monitoring soft protecting net pressure-reducing ring, can reach the purpose that monitoring has or not the rock-fall impact grille guard.As shown in Figure 2, wherein 2-1 is fiber grating displacement sensor, and 2-2 is pressure-reducing ring, and 2-3 is soft protecting net, and pressure-reducing ring can produce displacement deformation when being subject to rock-fall impact.For example, in the situation that pulling force increases, pressure-reducing ring will have the trend that reduces integral radius to the center indentation, and its deflection and suffered pulling force have positively related relation.Therefore fiber grating displacement sensor can be installed in the inboard of described pressure-reducing ring, as shown in Figure 2, be used for the displacement deformation of monitoring pressure-reducing ring, and whether the trend of distortion reach hazard level.Thus, make up the soft protecting net monitoring system, can realize long-rangely monitoring in real time the strained condition of soft protecting net and then Warning Service being provided.
The soft protecting net monitoring system should have the three basic function: the pressure-reducing ring deflection is monitored, can automatically identify the deflection in the regulation category, can take the actv. means to analyze or report to the police after determining.
For achieving the above object, as shown in Figure 1, should be consisted of by three parts at least according to soft protecting net monitoring system of the present utility model: dangerous matter sources signal capture system, signal handling equipment, and warning.In addition, because facility is had relatively high expectations for equipment dependability, system must possess self-diagnosing function, and when device signal collection path was impaired, equipment can provide corresponding alerting signal and notify the staff to safeguard.
Wherein, shown in the groundwork of dangerous matter sources signal capture system be collection site pressure-reducing ring deformation information and change into data, and send to signal handling equipment by transmission medias such as networks; The groundwork of signal handling equipment is that the data that send from dangerous matter sources signal capture system according to the respective algorithms analysis (are the basis with the pass between pressure-reducing ring deflection and the pulling force for example, calculate the related suffered pulling force of pressure-reducing ring of signal when pre-processing), and the binding time variable judges pressure-reducing ring change in displacement variation tendency, and sends corresponding alerting signal to warning; The warning main task is to receive can to send the warning means such as light, sound, electricity after the alerting signal that signal handling equipment sends and inform the corresponding alarm message of staff at different levels.The below describes respectively each system.
Dangerous matter sources signal capture system
According to the utility model, described fiber grating displacement sensor operated by rotary motion is on the pressure-reducing ring of soft protecting net.In the utility model, preferably adopt the pressure type fiber grating displacement sensor, as shown in Figure 3, be the fiber grating displacement sensor structural representation.But, do not get rid of yet and use sensor other types, that can sensing reduce pressure ring-like variable.Fiber grating displacement sensor comprises shell 3-1, spring 3-2, mobile sleeve pipe 3-3, push rod 3-4 and optical fiber grating 3-5.Wherein, mobile sleeve pipe 3-3 slidably is arranged among the shell 3-1, and the end of optical fiber grating 3-5 is fixed on the mobile sleeve pipe 3-3.When push rod 3-4 promotes with mobile sleeve pipe 3-3 is connected spring 3-2, mobile sleeve pipe 3-3 will slide in shell 3-1, thereby cause the strain of optical fiber grating 3-5, cause the reflected light centre wavelength of optical fiber grating 3-5 to change.Adopt the fiber grating displacement sensor that so arranges, utilize the expansion performance of spring to cushion the thrust of push rod, so that the thrust of push rod can not be delivered to the two ends of optical fiber grating rigidly.Therefore, above-mentioned arrangement uses spring equal proportion ground to transmit the displacement (that is, with the corresponding information of the suffered pulling force of pressure-reducing ring) of push rod, has avoided push rod to directly act on optical fiber grating and the sensor that may cause is damaged.So that fiber-optic grating sensor can reflect the force-bearing situation of pressure-reducing ring in real time, truly, and be not vulnerable to the damage of powerful external force, even in the situation about damaging at the pressure-reducing ring excessive deformation, fiber-optic grating sensor appended on it still may be utilized on the new pressure-reducing ring again.Yet the fiber-optic grating sensor of other types also can use in the utility model, is used for the sensing ring-like variable that reduces pressure.
Fiber-optic grating sensor is one of optical fiber transducer that is most widely used at present, but the parameters such as monitor strain, temperature, pressure, displacement, flow, liquid level.Its sensing principle generally changes based on measured parameter and causes the variation of grating cycle and effective refractive index, thereby causes the variation of grating characteristic wavelength (reflection wavelength), measures above-mentioned parameter by the amount of movement of measuring characteristic wavelength.According to the utility model, the principle of work of described pressure type fiber grating displacement sensor is:
Each fiber-optic grating sensor receives laser from lasing light emitter (such as fiber Bragg grating (FBG) demodulator), and is reflected back the laser of specific wavelength.For fiber grating displacement sensor, under the impact of displacement, can be offset by its optical maser wavelength that is reflected back.For each fiber-optic grating sensor, the characteristic wavelength λ of its reflection is between 1510-1590nm.Have set relation between the amount △ λ of wavelength shift and the displacement S, this relational expression can be expressed as:
△λ
i=k*S
i （1）
Wherein k is an empirical value or test determination value for predetermined coefficient.
Like this, detect push rod with respect to the relative shift of shell by the catoptrical centre wavelength relative variation of optical fiber grating.Fiber grating displacement sensor has quasi-distributed networking (tens to the hundreds of point), Measurement Resolution high (0.01%FS), measurement range, and wide (300 μ m～20mm), working temperature range are wide, be not subjected to the advantages such as electromagnetic interference, withstanding corrosion, anti shock and vibration, antifatigue, long service life, can be widely used in the relative displacement variation monitoring to various structure point-to-point transmissions.
Described dangerous matter sources signal capture system mainly comprises: sensor location formula array, signal transmission fiber and fiber Bragg grating (FBG) demodulator.
Wherein, described sensor location formula array can comprise a plurality of fiber grating displacement sensors, yet described sensor location formula array also can only comprise a fiber grating displacement sensor.Described sensor location formula array can be to be connected in series, and perhaps is connected in parallel, and also can be mode in parallel and that series connection combines, thereby consist of certain topological network.For example, a sensor can be set on each detected object, the sensor on a plurality of measurands connects through certain mode.Particularly, described fiber grating displacement sensor array can be connected in a plurality of branches light path, and each branch's light path is connected with main cable by optical cable connecting box, by main cable each shunt optical cable is connected on the fiber Bragg grating (FBG) demodulator device.Wherein, send laser signal to fiber-optic grating sensor by optical fiber cable by described fiber Bragg grating (FBG) demodulator.Usually, fiber Bragg grating (FBG) demodulator sends predetermined beam of laser, and this Shu Jiguang can comprise the laser of a plurality of predetermined wavelengths, also can be the laser with certain spectral width.According to predetermined set, the laser of the fiber grating displacement sensor of each reflection specific wavelength under the normal condition; And in the situation that tested pressure-reducing ring is subjected to displacement, the reflection wavelength of fiber grating displacement sensor changes (also may cause fiber-optic grating sensor to lose efficacy under extreme case), and skew or disappearance occur the optical maser wavelength that therefore will cause being reflected.The wavelength variations of the laser of described fiber Bragg grating (FBG) demodulator by relatively reflecting back into this fiber Bragg grating (FBG) demodulator is monitored the external environment condition of each fiber-optic grating sensor to its impact that produces.
By dangerous matter sources signal capture of the present utility model system, can collect and obtain about certain position or certain regional area information that occurs of certain service on buses or trains section for example.Wherein, if obtain the wavelength of the laser of certain fiber-optic grating sensor reflection skew and lasting regular hour section occuring, this means that certain deflection has appearred in the position (such as the pressure-reducing ring of grille guard) of this sensor; If the wavelength shift speed illustrates that dangerous foreign matter (for example falling rocks) impact energy is larger; If the wavelength of reflector laser reaches certain predetermined value, illustrate that pressure-reducing ring distortion has reached or surpassed preset value; And if should by the laser disappearance of this sensor reflection, then illustrate to be likely the sensor of having damaged this position.Can utilize signal handling equipment to analyze the collected signal of above-mentioned dangerous matter sources signal capture system this moment, thereby draw certain conclusion.
Signal handling equipment
According to principle of the present utility model, need the signalization disposal system to analyze the signal that obtains from above-mentioned dangerous matter sources signal capture systematic collection.Preferably, signal handling equipment can be analyzed the signal from numerous dangerous matter sources signal capture systems.Wherein, signal handling equipment can be connected with dangerous matter sources signal capture system such as optical cable by wired mode.Replacedly, also can send and transmission of information by wireless mode, for example realize the transmission of information by means of satellite network.
Wherein, described signal handling equipment can be embodied as computer server particularly, and it comprises or connect corresponding data bank.According to the utility model, described signal handling equipment comprises treater, processes and logic judgment unit as data, and the signal relevant with the sensor wavelength variation that is used for fiber Bragg grating (FBG) demodulator is sent analyzed and judged.Pre-stored sensor or sensor array centre wavelength data in the server, the corresponding relation between center wavelength variation amount and the pressure-reducing ring deflection, and the destruction situation grade of corresponding this grille guard of pressure-reducing ring deflection.
When a certain pressure-reducing ring is being subject to deforming under the impact loading, signal handling equipment receives the center wavelength variation value.At first, judge that described wavelength is the signal that belongs to which fiber grating displacement sensor, in view of the characteristic wavelength of the amount of fiber grating displacement sensor wavelength shift and each described sensor comparatively speaking is very little value, general only is the amount of or a few nanometer, and the general sensor characteristics wavelength with adjacent band of the wavelength after changing also can be good at differentiation.Like this, determined just can determine it is the signal of corresponding which fiber-optic grating sensor behind the characteristic wavelength signal.And, after determining sensor, just can determine corresponding to which pressure-reducing ring.Secondly, determine the corresponding pressure-reducing ring deflection of wavelength shift of sensor.According to preamble, the displacement that sensor senses is corresponding with the wavelength shift of sensor, also just can determine whether the sensor station place the suitable displacement for the treatment of occurs by the amount of monitoring wavelength shift conversely.Again, judge situation and the order of severity of pressure-reducing ring deflection to should soft protecting net occuring.Wherein, the corresponding situation between level of displacement and the soft protecting net impact load rule of thumb or measuring estimate.This corresponding relation is not fixed, but the artificial result who sets, so also can suitably change as the case may be.
Wherein, also need to judge and the situation that wavelength signals does not but occur occur: if be transferred to the signal that does not comprise or interrupts certain fiber-optic grating sensor of correspondence in the sensor signal of server, then mean certain serious situation that occured, ruined such as the pressure-reducing ring structure of sensor installation.This need to carry out safe handling at once.If the blackout of all the sensors that is connected by minute optical cable is likely that then this optical cable is damaged.According to other criterion of degree of risk level, server can be summarized as it " burst major disaster situation " or " optical cable damage " etc.The logic rules of judging can specifically be set by operating personal, or make amendment.
Warning
Signal handling equipment, described server section namely, obtain by analysis that disaster occurs or the information of hazard rating after, this information is sent to relevant personnel with the form of certain medium, the personnel, the maintainer that are responsible for railway security such as the zone, and higher level decision maker.
Wherein, by the personnel that are responsible for security monitoring, according to the situation of monitoring, can be by wired or wireless mode, such as phone, note, broadcasting, Warning light, warn or announce to the relevant personnel.
Wherein, in the utility model, used open good, the communications protocol that can expand, be convenient to three data transmission between the system, and be conducive to set up unified disaster prevention system.
Like this, the soft protecting net monitoring system that comprises above-mentioned each component part has the outstanding advantages such as accurate, safe, instant and low-cost with respect to existing mode.This system also can be relevant with railroad track with other monitoring system compatible or parallel mutually, to realize comprehensive function.The utility model generally is applicable to the monitoring situation of crag side slope flexible protecting net system.
Those examples that functional character of the present utility model is not limited to provide previously it is contemplated that the function of any kind in the utility model spirit like this.Although in conjunction with preferred embodiment of the present utility model the utility model is illustrated, be not for the utility model being restricted to object lesson set forth herein.On the contrary, scope of the present utility model only is subject to described claim.
Claims (9)
1. dangerous matter sources signal capture system, this dangerous matter sources signal capture system comprises:
Fiber-optic grating sensor or the distributive array that is made of described fiber-optic grating sensor, described fiber-optic grating sensor are installed on the pressure-reducing ring of grille guard;
Fiber Bragg grating (FBG) demodulator; And
Signal transmission fiber;
Described fiber Bragg grating (FBG) demodulator is connected by signal transmission fiber with described fiber-optic grating sensor or described distributive array; And wherein, the deflection of described fiber-optic grating sensor or described distributive array sensing pressure-reducing ring, and send sensing signal to described fiber Bragg grating (FBG) demodulator by signal transmission fiber.
2. dangerous matter sources signal capture according to claim 1 system, wherein
Described fiber-optic grating sensor is fiber grating displacement sensor, is used for the deflection of its two ends of sensing under effect of stress;
Described fiber grating displacement sensor comprises shell, spring, mobile sleeve pipe, push rod and optical fiber grating; Described mobile sleeve pipe slidably is arranged in the described shell, and an end of described optical fiber grating is fixed on the described mobile sleeve pipe, described spring is connected with described mobile sleeve pipe, when described push rod promotes described spring, described mobile sleeve pipe will slide in described shell, thereby cause the strain of described optical fiber grating, cause the reflected light centre wavelength of described optical fiber grating to change.
3. dangerous matter sources signal capture according to claim 1 system, wherein said fiber Bragg grating (FBG) demodulator comprises: laser beam emitting device is used for generating laser; And input/output port, be used for Laser output to signal transmission fiber; Described signal transmission fiber is connected with fiber-optic grating sensor, and laser turns back to described fiber Bragg grating (FBG) demodulator after the fiber-optic grating sensor reflection,
Wherein, laser is when described fiber-optic grating sensor internal reflection, if be subject to outside effect, the wavelength of reflector laser can change, and has predetermined correlativity between described variation and the external action.
4. dangerous matter sources signal capture according to claim 2 system, it is inboard that wherein said fiber-optic grating sensor is arranged on described pressure-reducing ring, is used for the deflection of the described pressure-reducing ring of sensing.
5. dangerous matter sources signal capture according to claim 1 system, described fiber-optic grating sensor or described distributive array are connected in a plurality of branches light path, each branch's light path is connected with main cable by optical cable connecting box, by main cable each shunt optical cable is connected on the fiber Bragg grating (FBG) demodulator.
6. dangerous matter sources signal capture according to claim 1 system, wherein said fiber Bragg grating (FBG) demodulator carries out demodulation process to the laser that reflects from described fiber-optic grating sensor, and draws the wavelength signals of reflector laser.
7. grille guard monitoring system comprises:
Each described dangerous matter sources signal capture system according to claim 1-6;
The signal handling equipment that is connected with described dangerous matter sources signal capture system;
The warning that is connected with described signal handling equipment determines that in described signal handling equipment the pressure-reducing ring deflection occurs and/or reaches in the situation of hazard level, sends alerting signal and/or information in one or more modes.
8. grille guard monitoring system according to claim 7 is characterized in that, described dangerous matter sources signal capture system is connected by wired or wireless mode at a distance with described signal handling equipment.
9. according to claim 7 or 8 described grille guard monitoring systems, it is characterized in that, comprise one or more described dangerous matter sources signal capture system, and
Described one or more dangerous matter sources signal capture system provides the information of collecting to one or more described signal handling equipments.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220737043 CN203255212U (en) | 2012-12-28 | 2012-12-28 | Dangerous source signal catching system and protective screening monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220737043 CN203255212U (en) | 2012-12-28 | 2012-12-28 | Dangerous source signal catching system and protective screening monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203255212U true CN203255212U (en) | 2013-10-30 |
Family
ID=49467803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220737043 Expired - Fee Related CN203255212U (en) | 2012-12-28 | 2012-12-28 | Dangerous source signal catching system and protective screening monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203255212U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103900486A (en) * | 2012-12-28 | 2014-07-02 | 同方威视技术股份有限公司 | Protection net monitoring system |
| CN109612670A (en) * | 2018-12-07 | 2019-04-12 | 石家庄铁道大学 | A kind of protective net monitoring method, system and terminal equipment |
| CN113008151A (en) * | 2019-12-20 | 2021-06-22 | 奥动新能源汽车科技有限公司 | Bolt or nut looseness monitoring device and system and optical fiber deformation sensor |
| CN115106421A (en) * | 2022-06-30 | 2022-09-27 | 南通诚业德精密组件有限公司 | Stamping device for metal terminal machining |
-
2012
- 2012-12-28 CN CN 201220737043 patent/CN203255212U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103900486A (en) * | 2012-12-28 | 2014-07-02 | 同方威视技术股份有限公司 | Protection net monitoring system |
| CN109612670A (en) * | 2018-12-07 | 2019-04-12 | 石家庄铁道大学 | A kind of protective net monitoring method, system and terminal equipment |
| CN113008151A (en) * | 2019-12-20 | 2021-06-22 | 奥动新能源汽车科技有限公司 | Bolt or nut looseness monitoring device and system and optical fiber deformation sensor |
| CN115106421A (en) * | 2022-06-30 | 2022-09-27 | 南通诚业德精密组件有限公司 | Stamping device for metal terminal machining |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103985225A (en) | Intelligent monitoring system for flexible passive protective net | |
| CN102354433B (en) | Railway side slope crag rockfall monitoring and warning system based on fiber grating sensing technology | |
| CN104340239A (en) | Railway disaster-preventive three-dimensional monitoring and alarming system | |
| CN103900486A (en) | Protection net monitoring system | |
| CN107425906B (en) | Distributed optical fiber sensing signal processing method for safety monitoring of underground pipeline network | |
| CN111063174B (en) | Pipeline line safety early warning system based on distributed optical fiber sensing | |
| CN202257858U (en) | Railway slope dangerous rock falling monitoring and alarming system based on fiber bragg grating sensing technology | |
| CN203255212U (en) | Dangerous source signal catching system and protective screening monitoring system | |
| CN203260156U (en) | Dangerous-source catching system and intelligent monitoring system of flexible passive guard net | |
| CN103824422B (en) | Along Railway rockfall monitoring and alarming system | |
| CN103323157A (en) | Dynamic monitoring method and device of stress sensitization fiber bragg grating of locking rods of railway turnout switch machine | |
| CN103175475B (en) | Bank protection monitoring system | |
| CN113438018A (en) | Optical cable fault detection method and device | |
| CN103177531B (en) | Along Railway mud-stone flow disaster is monitored | |
| CN103171594A (en) | Railway foreign body line invading monitoring | |
| CN104627205A (en) | Railway foreign matter beyond limit monitoring system based on fiber bragg grating sensor closed loop | |
| CN117309045A (en) | Monitoring system of steel structure suspension bridge | |
| CN109677457A (en) | Optical fiber sensing turnout point machine state monitoring device and method | |
| CN103913125B (en) | Protective net monitoring system | |
| CN202947686U (en) | Slope protection information acquisition system | |
| JP2001134851A (en) | Invasion monitor sensor utilizing optical fiber cable | |
| CN205664875U (en) | Bridge health monitoring system based on SCADA | |
| CN202743278U (en) | Information acquiring and analyzing and monitoring system for guard net | |
| CN204368189U (en) | Based on the railway foreign body intrusion monitoring system of fiber-optic grating sensor closed loop | |
| CN114842603A (en) | A monitoring and early warning system for preventing external breakage of high-voltage cables |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131030 Termination date: 20161228 |