CN105761437A - Remote monitoring system and method for mountain disaster in scenic region - Google Patents
Remote monitoring system and method for mountain disaster in scenic region Download PDFInfo
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- CN105761437A CN105761437A CN201610275469.5A CN201610275469A CN105761437A CN 105761437 A CN105761437 A CN 105761437A CN 201610275469 A CN201610275469 A CN 201610275469A CN 105761437 A CN105761437 A CN 105761437A
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/10—Alarms for ensuring the safety of persons responsive to calamitous events, e.g. tornados or earthquakes
Abstract
The invention discloses a remote monitoring system for a mountain disaster in a scenic region. The system is composed of a vibration monitoring unit, a data acquisition unit, a field alarm unit and a control center unit. The vibration monitoring unit consists of a plurality of fiber grating sensors connected successively by fibers; and a broadband light source is arranged at one end of the vibration monitoring unit and the data acquisition unit is connected to the other end of the vibration monitoring unit by a fiber. The data acquisition unit, the control center unit, and the field alarm unit are connected successively. The vibration monitoring unit winds around a mountain. In addition, the invention also provides a remote monitoring method for a mountain disaster in a scenic region; and vibration situations of all areas of the mountain are monitored by using a fiber sensing technology. According to the invention, the system has a simple structure. Omnibearing monitoring can be carried out on disasters like landslide and rockfall; tourists at the disaster occurrence areas or at the foot of the mountain can be warned; and thus the tourists can take measures in advance to deal with the disasters like the rock fall, so that the casualties can be reduced.
Description
Technical field
The present invention relates to mountain region disaster monitoring technical field, be specifically related to a kind of scenic spot massif remote monitoring system for disaster and method.
Background technology
Massif disaster includes many types, such as flood, landslide, falling rocks, brushfire etc., productive life for the mankind causes huge loss, but the mankind are very close with contacting of massif, can not be away from for massif disaster, it is thus desirable to be monitored reporting to the police to the disaster of massif, reduce property loss and casualties.Especially for the massif of tourist attractions, the massif disaster faced by mostly is mud-rock flow, landslide and falling rocks, and uncommon for mountain torrents and brushfire, and therefore the monitoring for mud-rock flow, landslide and falling rocks is the emphasis of scenic spot massif disaster monitoring.
Mud-rock flow refers at mountain area or other cheuch deep gullies, the area that landform is dangerously steep, because heavy rain, landslide that severe snow or other natural disasters cause the special mighty torrent that carries a large amount of silt and stone.The features such as it is fast that mud-rock flow has emergentness and flow velocity, and flow is big, and matter content is big and destructive power is strong.Come down comparatively similar with mud-rock flow, landslide refers to the soil body on slope or rock mass, affected by factors such as river degradation, groundwater activities, rainwater immersion, earthquake and artificial blending rock, under gravity, along certain Weak face or weak band, the integrally or dispersedly natural phenomena of inclined slope aspect lower slider.Both carry a large amount of earth sandstone to impact under mountain, can be destroyed by rush of water time serious house, the life security of critical visitor, and the scenic spot with massif prevents the generation of such disaster by planting a large amount of vegetation, but still have little probability generation mud-rock flow and landslide disaster, cause casualties.
Falling rocks refers to has loosening large-scale stone to tumble on massif, building on circuit and personnel are damaged, the reason causing falling rocks has a lot, as caused corrosion to cause bottom stone, stone departs from massif thus tumbling, or visitor is not intended to touching and causes that stone tumbles, the personnel that can stone be tumbled on circuit damage.2015 there is falling rocks in certain scenic spot, cause the visible falling rocks danger to visitor of many people casualties.But scenic spot mostly adopts the form of caution board for falling rocks at present, visitor is played warning function, but it is because the sudden of falling rocks and uncertainty makes caution board like water off a duck's back, it is impossible to falling rocks situation is played monitoring effect, it is impossible to ensure the life security of visitor.
Application number a kind of be the disclosure of the invention of 201410036419.2 mountain torrents Geological Hazards of debris monitoring early-warning device and method.Monitoring early-warning device is made up of field sensing device and a terminal alarming device of 1～n numbering, field sensing device by from terminal alarming device distance by as far as close to successively order compile, terminal alarming device field sensing device is transmitted control and signals collecting.The sensor of field sensing device is multi sensor combination, terminal alarming device gathers the signal of field sensing device in radio communication force transfer mode and is controlled, as required the channel electric controlled molding block in the sensing controler of field sensing device is carried out interruptedly supplying power control, be transmitted controlling according to force transfer communication and field sensing device.Mountain torrents mud-rock flow can be monitored by this device, but to include function more for field sensing device, and structure complexity involves great expense, and is primarily directed to the monitoring of mountain torrents mud-rock flow, it is impossible to meets the requirement of scenic spot massif disaster monitoring.
Application number be the disclosure of the invention of 201510042319.5 a kind of mountain region disaster monitoring and forecasting and early warning system, it is characterised in that: this system includes data collecting system, data transmission system, data processing centre, early warning system；Data collecting system is used for gathering related data information and by data transmission system transmission to data processing centre, the data transmitted are analyzed processing and warehouse-in by data processing centre, and early warning system judges whether to early warning operation according to the result of data processing centre.This invention can accomplish the monitoring to scenic spot massif disaster, but structure is complicated, and difficult wiring and monitoring accuracy are relatively low.
Summary of the invention
Problem to be solved by this invention is to provide a kind of scenic spot massif remote monitoring system for disaster and method, simple in construction, the disaster such as landslide, falling rocks can be carried out comprehensive monitoring, and the visitor of area and lower section can be occurred to remind disaster, the reply disaster such as falling rocks can antedating response, reduce casualties.
For solving above-mentioned technical problem, the technical solution used in the present invention is:
A kind of scenic spot massif remote monitoring system for disaster, including vibration monitoring unit, data acquisition unit, onsite alarming unit and control centre's unit, described vibration monitoring unit includes several fiber-optic grating sensors being sequentially connected with by optical fiber, one end of described vibration monitoring unit arranges wideband light source, the other end of described vibration monitoring unit is connected with described data acquisition unit by described optical fiber, described data acquisition unit, control centre's unit and onsite alarming unit are sequentially connected with, and described vibration monitoring unit is wound around and is arranged on massif.
Further, described vibration monitoring unit is arranged on the 30cm below ground of described massif.
Further, described fiber-optic grating sensor adopts optical fibre grating acceleration sensor, and described fiber-optic grating sensor is arranged on biography and shakes on hardboard, and described biography is shaken and arranged furcella bottom hardboard.
Further, the shake side of hardboard of described biography arranges Dao Neng mechanism.
Further, described Dao Neng mechanism includes leading energy aluminum steel.
Further, described optical fiber arranges circuit compensator, described circuit compensator includes box body, described box body two ends arrange inlet and outlet, described tray interior arranges transverse slat, several perforation of spread configuration on described transverse slat, and described transverse slat both sides arrange spring between described perforation, described spring top arranges top, and the described perforation of the S-type traverse of described optical fiber is also propped up by corresponding described top.
Further, described top includes the bend pipe of circular arc, the described optical fiber described bend pipe of traverse.
Further, described data acquisition unit includes fiber grating Network Analyzer, and described control centre unit includes industrial control computer.
Further, described onsite alarming unit includes corresponding described fiber-optic grating sensor and is arranged on the alarm on described massif, controller, GPRS module and power supply, and described power supply includes wind-solar hybrid generating equipment or battery.
A kind of scenic spot massif disaster remote monitoring method, comprises the steps:
1) several fiber-optic grating sensors are sequentially connected with by optical fiber, and are from bottom to top wound around massif embedment ground；
2) connecting wideband light source at the input of optical fiber, the outfan of optical fiber connects fiber grating Network Analyzer；
3) fiber grating Network Analyzer is connected with the industrial control computer signal of control centre unit；
4) wideband light source sends signal, fiber grating Network Analyzer detects the change of signal wavelength and wavelength signals is converted to the corresponding signal of telecommunication, the signal of telecommunication received is processed by industrial control computer, calculate corresponding wavelength value, thus the vibration information that the fiber-optic grating sensor calculating correspondence monitors；
5) vibration information being analyzed, when occurring that certain fiber-optic grating sensor monitors vibration, and the fiber-optic grating sensor of the lower section of this position of half a minute inherence massif afterwards monitors vibration, then judge falling rocks, mud-rock flow or flood damage occur；
6) control centre's unit sends warning message to corresponding onsite alarming unit, and prompting occurs the visitor below disaster area or disaster area to hide.
The invention provides a kind of scenic spot massif remote monitoring system for disaster, particular for be the scenic spot massif of soil stone mixed materials, such massif is susceptible to falling rocks, landslide phenomenon, and visitor is damaged.Vibration monitoring unit sends optical signal by wideband light source and propagates in optical fiber, when light is when being transferred to fiber-optic grating sensor and being given a shock, wavelength can change, realize the monitoring to vibration information, data acquisition unit can convert optical signals to the signal of telecommunication, and send data to control centre's unit, Monitoring Data is carried out, and process calculates whether monitor vibration and particular location.Vibration monitoring unit is wound around and is arranged on massif, from bottom to top or from top to bottom, substantially tapered helical structure, concrete structure changes according to massif shape, the difference in level of the upper and lower fiber-optic grating sensor can between 20～100 meters, the more little cost of difference in height is more high, but monitoring accuracy is also more high.Onsite alarming unit is that corresponding each fiber-optic grating sensor is arranged on scene, the warning message of control centre's unit can be received, when massif point monitors disaster information, it is possible to start the onsite alarming unit of this point and lower section, visitor is played reminding effect, reduces loss.
In order to vibration monitoring unit is protected, it is buried in 30 centimetres of degree of depth of below ground, moreover it is possible to reduce the impact that it is caused by the vibration propagated in air.Fiber grating sensor adopts optical fibre grating acceleration sensor, and optical fibre grating acceleration sensor is by mass, microvibration is acquired mostly, and transmits these vibrations to fiber grating, causes wavelength conversion, and vibration acquisition is more accurate.Pass the hardboard that shakes and can improve the collection of vibrational energy, microvibration can be collected, blank area between the fiber-optic grating sensor of the upper and lower is carried out vibrational energy transmission by Dao Neng mechanism, it is possible to extends the monitoring range of fiber-optic grating sensor, is beneficial to control cost.Vibration monitoring unit is protected by circuit compensator, optical fiber can be played cushioning effect when running into landslide, it is to avoid these a large amount of earth impact and cause optical fiber or fiber-optic grating sensor fracture, it is also possible to carry out compensation of expanding with heat and contract with cold when temperature in four seasons changes.
Present invention also offers a kind of scenic spot massif disaster remote monitoring method, fiber-optic grating sensor monitors vibration information, when after certain Sensor monitoring to vibration, if the sensor in 30 seconds below this position also monitors vibration information, illustrate that object tumbles in this position of massif, meaning the disaster such as falling rocks, landslide occur, now warning message is sent the onsite alarming unit to corresponding place by control centre's unit, reminds the visitor that disaster place and lower section occur to hide.
The invention has the beneficial effects as follows:
1, adopting communication optical fiber is point element and transmission medium, and simple in construction has anticorrosive, the advantage of humidity, measures accurately, and long-term work is reliable and stable, and electric energy need not be provided just can to realize the omnidirectional high-accuracy to massif monitor, and practicality is significantly high；
2, distance fiber-optic grating sensor vibration farther out can be transferred to biography by Dao Neng mechanism shake hardboard, it is possible to reduce the usage quantity of optical fiber and sensor, be beneficial to reduction cost, accelerate construction progress；
3, vibration monitoring unit is protected by circuit compensator, optical fiber can be played cushioning effect when running into landslide, it is to avoid these a large amount of earth impact and cause optical fiber or fiber-optic grating sensor fracture, it is also possible to carry out compensation of expanding with heat and contract with cold when temperature in four seasons changes；
4, the disaster such as landslide, falling rocks can be carried out comprehensive monitoring, and area and the visitor of lower section can be occurred to remind disaster, the disaster such as reply falling rocks can antedating response, reduce casualties.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described:
Fig. 1 is the system construction drawing of scenic spot of the present invention massif remote monitoring system for disaster；
Fig. 2 is the structural representation of vibration monitoring unit of the present invention；
Fig. 3 is the structural representation of vibration monitoring unit of the present invention and onsite alarming unit；
Fig. 4 is the structural representation of circuit compensator of the present invention.
Detailed description of the invention
Below in conjunction with Fig. 1 to Fig. 4, technical solution of the present invention being shown further, detailed description of the invention is as follows:
Embodiment one
As shown in Figure 1 to Figure 3: present embodiments provide a kind of scenic spot massif remote monitoring system for disaster, including vibration monitoring unit 1, data acquisition unit 2, onsite alarming unit 3 and control centre's unit 4, described vibration monitoring unit 1 includes several fiber-optic grating sensors 6 being sequentially connected with by optical fiber 5, one end of described vibration monitoring unit 1 arranges wideband light source 7, the other end of described vibration monitoring unit 1 is connected with described data acquisition unit 2 by described optical fiber 5, described data acquisition unit 2, control centre's unit 4 and onsite alarming unit 3 are sequentially connected with, described vibration monitoring unit 1 is wound around and is arranged on massif 8.
What present invention is particularly directed to is the scenic spot massif of soil stone mixed materials, and such massif is susceptible to falling rocks, landslide phenomenon, and visitor is damaged.Vibration monitoring unit sends optical signal by wideband light source and propagates in optical fiber, when light is when being transferred to fiber-optic grating sensor and being given a shock, wavelength can change, realize the monitoring to vibration information, data acquisition unit can convert optical signals to the signal of telecommunication, and send data to control centre's unit, Monitoring Data is carried out, and process calculates whether monitor vibration and particular location.Vibration monitoring unit is wound around and is arranged on massif, from bottom to top or from top to bottom, substantially tapered helical structure, concrete structure changes according to massif shape, the difference in level of the upper and lower fiber-optic grating sensor can between 20～100 meters, the more little cost of difference in height is more high, but monitoring accuracy is also more high.Onsite alarming unit is that corresponding each fiber-optic grating sensor is arranged on scene, the warning message of control centre's unit can be received, when massif point monitors disaster information, it is possible to start the onsite alarming unit of this point and lower section, visitor is played reminding effect, reduces loss.
Described vibration monitoring unit 1 is arranged on the 30cm below ground of described massif 8; the heavy objects such as landslide, falling rocks is mainly impacted or slips over the vibration on ground and is monitored by vibration monitoring unit; small vibrating is directly filtered; therefore it is arranged on underground just may be used; it is also prevented from visitor or it is damaged by falling rocks, protect equipment safety, but it is excessively deep to imbed ground; the vibration monitoring effect on ground can be died down, and therefore the degree of depth of 30cm just may be used.
Described fiber-optic grating sensor 6 adopts optical fibre grating acceleration sensor, described fiber-optic grating sensor 6 to be arranged on biography to shake on hardboard 9, and described biography is shaken and arranged furcella 10 bottom hardboard 9.Microvibration is acquired by optical fibre grating acceleration sensor by mass, and transmits these vibrations to fiber grating, causes wavelength conversion, and vibration acquisition is more accurate.Passing the hardboard that shakes and can adopt the hardboard material of other material of corrosion resistant plate, fiber-optic grating sensor plays the effect on basis, improve the transmission efficiency of vibration, furcella increases the contact area with massif, it is possible to receive more vibrational energy, and the monitoring of vibration is more accurate.
The shake side of hardboard 9 of described biography arranges Dao Neng mechanism 11, vibration monitoring unit is wound around and is arranged on massif, consider to reduce investment, the spacing of every layer of fiber-optic grating sensor is bigger, the vibration monitoring effect of middle part can be died down, can by the vibration energy harvesting of middle part and be delivered to biography and shake hardboard by Dao Neng mechanism, it is possible to reducing the comprehensive spreadability ensureing massif vibration monitoring on the basis of investment.The vibration information that in this situation, each fiber-optic grating sensor monitors includes the place of its embedment and the region of Dao Neng mechanism covering, and the scope of monitoring is very big, it is possible to save great amount of cost.
Described Dao Neng mechanism 11 includes leading energy aluminum steel, Dao Neng mechanism needs have plasticity, but it is also required to possess the transitivity that vibrational energy is good, therefore soft rubber etc. not easily use, the metal such as copper, aluminum can be considered, it is contemplated that price recommendation uses aluminum steel, and aluminum steel can transmit vibration, will be far from the vibration in fiber-optic grating sensor region to be transferred to biography and shake on hardboard, economical and practicality is all fine.
Embodiment two
Such as Fig. 1, shown in Fig. 2 and Fig. 4: the present embodiment additionally provides a kind of scenic spot massif remote monitoring system for disaster, including vibration monitoring unit 1, data acquisition unit 2, onsite alarming unit 3 and control centre's unit 4, described vibration monitoring unit 1 includes several fiber-optic grating sensors 6 being sequentially connected with by optical fiber 5, one end of described vibration monitoring unit 1 arranges wideband light source 7, the other end of described vibration monitoring unit 1 is connected with described data acquisition unit 2 by described optical fiber 5, described data acquisition unit 2, control centre's unit 4 and onsite alarming unit 3 are sequentially connected with, described vibration monitoring unit 1 is wound around and is arranged on massif 8.
Described optical fiber 5 arranges circuit compensator 12, described circuit compensator 12 includes box body 13, described box body 13 two ends arrange import 14 and outlet 15, described box body 13 is internal arranges transverse slat 16, several perforation 17 of spread configuration on described transverse slat 16, described transverse slat 16 both sides arrange spring 18 between described perforation 17, and described spring 18 top arranges top 19, and the described optical fiber 5 described perforation of S-type traverse 17 is also propped up by corresponding described top 19.When there is landslide, optical fiber can be impacted by a large amount of earth, if not having the mechanism of buffering, optical fiber is susceptible to fracture, causes scrapping of whole piece circuit.Circuit compensator inner fiber is presented S type shape by spring supporting, when optical fiber two ends under tension, pulling force can be applied on spring and spring is extruded, S type optical fiber can be released, optical fiber is played suitable cushioning effect, when optical fiber not by pulling force or when summer, optical fiber was by thermal stretching spring optical fiber can be played the effect of contraction, it is possible to focus fibre automatically and carry out flexible adjustment, it is ensured that the stability that equipment runs.
Described top 19 includes the bend pipe 20 of circular arc, the described optical fiber 5 described bend pipe 20 of traverse.Top is that optical fiber is played a supporting role, but though optical fiber has certain pliability, is easily broken off during bending, therefore comes directly towards and by bend pipe optical fiber is supported and fixes, it is prevented that light comes off from top, does not have the effect of adjustment.The radius of curvature of bend pipe is preferably greater than 4cm, it is ensured that optical fiber turning point will not too be bent, and causes fibercuts, it is ensured that the stable property that equipment uses.Elbow internal wall arranges graphite linings or other lubricating layer, reduces the cartridge of optical fiber and elbow internal wall so that regulate sensitiveer, the protection of optical fiber is put in place more.
Embodiment three
As shown in figures 1 and 3: the present embodiment additionally provides a kind of scenic spot massif remote monitoring system for disaster, including vibration monitoring unit 1, data acquisition unit 2, onsite alarming unit 3 and control centre's unit 4, described vibration monitoring unit 1 includes several fiber-optic grating sensors 6 being sequentially connected with by optical fiber 5, one end of described vibration monitoring unit 1 arranges wideband light source 7, the other end of described vibration monitoring unit 1 is connected with described data acquisition unit 2 by described optical fiber 5, described data acquisition unit 2, control centre's unit 4 and onsite alarming unit 3 are sequentially connected with, described vibration monitoring unit 1 is wound around and is arranged on massif 8.
Described data acquisition unit 2 includes fiber grating Network Analyzer, and described control centre unit 4 includes industrial control computer.Fiber grating Network Analyzer detects the change of wavelength and wavelength signals is converted to the corresponding signal of telecommunication, is simultaneously transferred to control centre's unit.Monitoring Data is carried out process calculates whether monitor vibration and particular location by industrial control computer, and is wirelessly launched by warning message when monitoring disaster.
Described onsite alarming unit 3 includes corresponding described fiber-optic grating sensor 6 and is arranged on the alarm 21 on described massif 8, controller 22, GPRS module 23 and power supply 24, and described power supply 24 includes wind-solar hybrid generating equipment or battery.GPRS module receives the warning message that control centre's unit is sent, and sends to controller, and controller sends instruction and controls alarm response, and visitor around is reminded.Onsite alarming unit does not adopt line powering, carries out self-energizing by wind-solar hybrid generating equipment or adopts battery to be powered, reducing equipment investment.
Embodiment four
The present embodiment additionally provides a kind of scenic spot massif disaster remote monitoring method, comprises the steps:
1) several fiber-optic grating sensors are sequentially connected with by optical fiber, and are from bottom to top wound around massif embedment ground；
2) connecting wideband light source at the input of optical fiber, the outfan of optical fiber connects fiber grating Network Analyzer；
3) fiber grating Network Analyzer is connected with the industrial control computer signal of control centre unit；
4) wideband light source sends signal, fiber grating Network Analyzer detects the change of signal wavelength and wavelength signals is converted to the corresponding signal of telecommunication, the signal of telecommunication received is processed by industrial control computer, calculate corresponding wavelength value, thus the vibration information that the fiber-optic grating sensor calculating correspondence monitors；
5) vibration information being analyzed, when occurring that certain fiber-optic grating sensor monitors vibration, and the fiber-optic grating sensor of the lower section of this position of half a minute inherence massif afterwards monitors vibration, then judge falling rocks, mud-rock flow or flood damage occur；
6) control centre's unit sends warning message to corresponding onsite alarming unit, and prompting occurs the visitor below disaster area or disaster area to hide.
Fiber-optic grating sensor monitors vibration information, when after certain Sensor monitoring to vibration, if the sensor in 30 seconds below this position also monitors vibration information, illustrate that object tumbles in this position of massif, mean that the disaster such as falling rocks, landslide occurs, now warning message is sent the onsite alarming unit to corresponding place by control centre's unit, reminds the visitor that disaster place and lower section occur to hide.
What finally illustrate is, above example is only in order to illustrate technical scheme and unrestricted, other amendments that technical scheme is made by those of ordinary skill in the art or equivalent replace, without departing from the spirit and scope of technical solution of the present invention, all should be encompassed in the middle of scope of the presently claimed invention.
Claims (10)
1. a scenic spot massif remote monitoring system for disaster, it is characterized in that: include vibration monitoring unit, data acquisition unit, onsite alarming unit and control centre's unit, described vibration monitoring unit includes several fiber-optic grating sensors being sequentially connected with by optical fiber, one end of described vibration monitoring unit arranges wideband light source, the other end of described vibration monitoring unit is connected with described data acquisition unit by described optical fiber, described data acquisition unit, control centre's unit and onsite alarming unit are sequentially connected with, and described vibration monitoring unit is wound around and is arranged on massif.
2. scenic spot as claimed in claim 1 massif remote monitoring system for disaster, it is characterised in that: described vibration monitoring unit is arranged on the 30cm below ground of described massif.
3. scenic spot as claimed in claim 1 massif remote monitoring system for disaster, it is characterised in that: described fiber-optic grating sensor adopts optical fibre grating acceleration sensor, and described fiber-optic grating sensor is arranged on biography and shakes on hardboard, and described biography is shaken and arranged furcella bottom hardboard.
4. scenic spot as claimed in claim 3 massif remote monitoring system for disaster, it is characterised in that: the shake side of hardboard of described biography arranges Dao Neng mechanism.
5. scenic spot as claimed in claim 4 massif remote monitoring system for disaster, it is characterised in that: described Dao Neng mechanism includes leading energy aluminum steel.
6. scenic spot as claimed in claim 1 massif remote monitoring system for disaster, it is characterized in that: described optical fiber arranges circuit compensator, described circuit compensator includes box body, described box body two ends arrange inlet and outlet, described tray interior arranges transverse slat, several perforation of spread configuration on described transverse slat, and described transverse slat both sides arrange spring between described perforation, described spring top arranges top, and the described perforation of the S-type traverse of described optical fiber is also propped up by corresponding described top.
7. scenic spot as claimed in claim 6 massif remote monitoring system for disaster, it is characterised in that: described top includes the bend pipe of circular arc, the described optical fiber described bend pipe of traverse.
8. scenic spot as claimed in claim 1 massif remote monitoring system for disaster, it is characterised in that: described data acquisition unit includes fiber grating Network Analyzer, and described control centre unit includes industrial control computer.
9. scenic spot as claimed in claim 1 massif remote monitoring system for disaster, it is characterized in that: described onsite alarming unit includes corresponding described fiber-optic grating sensor and is arranged on the alarm on described massif, controller, GPRS module and power supply, and described power supply includes wind-solar hybrid generating equipment or battery.
10. a scenic spot massif disaster remote monitoring method, it is characterised in that: comprise the steps:
1) several fiber-optic grating sensors are sequentially connected with by optical fiber, and are from bottom to top wound around massif embedment ground；
2) connecting wideband light source at the input of optical fiber, the outfan of optical fiber connects fiber grating Network Analyzer；
3) fiber grating Network Analyzer is connected with the industrial control computer signal of control centre unit；
4) wideband light source sends signal, fiber grating Network Analyzer detects the change of signal wavelength and wavelength signals is converted to the corresponding signal of telecommunication, the signal of telecommunication received is processed by industrial control computer, calculate corresponding wavelength value, thus the vibration information that the fiber-optic grating sensor calculating correspondence monitors；
5) vibration information being analyzed, when occurring that certain fiber-optic grating sensor monitors vibration, and the fiber-optic grating sensor of the lower section of this position of half a minute inherence massif afterwards monitors vibration, then judge falling rocks, mud-rock flow or flood damage occur；
6) control centre's unit sends warning message to corresponding onsite alarming unit, and prompting occurs the visitor below disaster area or disaster area to hide.
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| CN111323153B (en) * | 2020-04-17 | 2022-07-05 | 中国科学院、水利部成都山地灾害与环境研究所 | Debris flow impact signal discrimination method realized by fiber bragg grating sensor and debris flow climbing motion characteristic measurement method |
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