CN103000001B - Landslide monitoring system for railway disaster prevention - Google Patents
Landslide monitoring system for railway disaster prevention Download PDFInfo
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- CN103000001B CN103000001B CN201210506368.6A CN201210506368A CN103000001B CN 103000001 B CN103000001 B CN 103000001B CN 201210506368 A CN201210506368 A CN 201210506368A CN 103000001 B CN103000001 B CN 103000001B
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Abstract
The invention discloses a landslide monitoring system for railway disaster prevention. The landslide monitoring system comprises a landslide detection system, a monitoring host system and a landslide sensing system, wherein the landslide sensing system senses landslide change information and transmits the landslide change information to the landslide detection system; the landslide detection system processes and converts the received landslide change information into a sensing signal and transmits the sensing signal to the monitoring host system; and the monitoring host system stores and processes the landslide change information. The landslide monitoring system can perform unmanned real-time monitoring on the landslide change information continuously, and gives an alarm before the changes of a roadbed exceed the safety range to effectively prevent accidents such as rain derail from happening.
Description
Technical field
The present invention relates to a kind of mountain landslide supervision system, particularly relate to a kind of monitoring system being realized railway anti-disaster by Sensor monitoring landslide, belong to technical field of preventing and reducing natural disasters.
Background technology
Highway and transportation by railroad carry the communications and transportation task of the land overwhelming majority, and flourishing highway and railway traffic transportation network are the condition precedents that any one country realizes rapid economic development.Highway and railway often has considerable disaster along the line, such as high wind, snowfall, flood, earthquake, fire, falling rocks and subgrade settlement etc.Landslide is a kind of geologic hazard that highway and railway extensively exists along the line.It is that a kind of geology caused by special geological structure changes, and often causes Secondary Geological Hazards.
Mountain landslide supervision is exactly the trend being predicted landslide by various technical method, is the Main Means that Secondary Geological Hazards is caused in prevention landslide.By mountain landslide supervision, the evolution process of sliding mass can be understood and grasped, catch the characteristic information of landslide disaster in time, to give the alarm in time, in order to avoid cause the loss of lives and properties before landslide forms secondary disaster.Mountain landslide supervision needs to accomplish uninterrupted monitoring, the safe operation of guarantee communications and transportation.
At present, in the technical method of mountain landslide supervision, manual measurement technology not only automaticity is low, and labor capacity is excessive, is also difficult to realize measuring in real time for a long time.Existing main monitoring technology is described as follows: (1) image recognition technology, although solve the problem of real-time dynamic monitoring, under the severe weather conditions such as rain, snow, mist, intelligent image accuracy of identification declines, monitoring wrong report happens occasionally, and dangerous situation even occurs and fails to report on the contrary.By the makeshift that the identification of artificial observed image replacement intelligent image is also short-term, within 24 hours, uninterruptedly observe and being difficult to lastingly, the cost of image monitoring system is high in addition, also makes this technology be difficult to widespread use; (2) bracing wire displacement monitoring, simple on this law theory, but limit by geographical environment, in the incident mountain area bracing wire monitoring works amount in landslide greatly and difficulty is high, there is potential safety hazard, also extremely difficult practical application; (3) GPS location technology, although can real time dynamic measurement be realized, realize to landslide monitoring just need GPS locate the precision reached within 1 meter, such precision at least need 2 stylobate standing posture GPS combine assist carry out real-time dynamic monitoring, involve great expense, be difficult to realize; (4) inclination angle monitoring technology, this technology predicts landslide trend by monitoring the change of ground elevation, but first occur that ground translation is sunk when a lot of landslide occurs, might not spot face tilt, and therefore the limitation of inclination angle monitoring technology is larger.In addition, these monitoring technology existing all need the problem first solving power supply, and it is almost impossible for powering for the monitoring special bracing wire in landslide in incident mountain area, landslide, draws electricity to go up a hill even if achieve, and also there is the danger of people and livestock electric shock.
Application number be 201110086453.7 Chinese patent application disclose a kind of landslide real-time monitoring and early warning system, comprise a main controlled node and multiple sensor node.Sensor node is made up of GPS module, vibration trigger module, mems accelerometer, storer, arm processor, wireless transport module and power module.Control node is made up of GPS module, wireless transport module, storer, arm processor and alarm.Sensor node gathers massif deformation parameter by GPS module, is gathered and descends abnormal vibration signal instantaneously, and these data are sent to main controlled node by wireless transport module by mems accelerometer.Main controlled node by the massif deformation parameter of wireless defeated module receiving sensor node and underground instantaneous vibration abnormal data, and is comprehensively analyzed it, and landslide early warning information is sent to alarm.
Summary of the invention
For the deficiency existing for prior art, technical matters to be solved by this invention is to provide a kind of mountain landslide supervision system towards railway anti-disaster.This system unmannedly in real time can monitor landslide information, gives warning in advance, effectively ensures traffic safety.
For realizing above-mentioned goal of the invention, the present invention adopts following technical scheme:
Towards a mountain landslide supervision system for railway anti-disaster, comprising: landslide detection system, monitoring host computer system and landslide sensing system;
Sensing system sensing landslide, described landslide change information, and transfer to described landslide detection system;
Described landslide detection system processes and is converted to sensing signal after receiving described landslide change information, transfers to described monitoring host computer system;
Described monitoring host computer system stores and processes described landslide change information.
Wherein more preferably, described landslide detection system comprises filter unit, photoelectric conversion unit, signal processing unit, communication unit;
Described filter unit receives the landslide change information of described landslide sensing system transmission, transfers to described photoelectric conversion unit; Described photoelectric conversion unit converts described landslide change information to electric signal by light signal, transfers to described signal processing unit; Electric signal after described signal processing unit processes conversion, transfers to described communication unit; Described communication unit is by the extremely described monitoring host computer system of the electric signal after conversion described in communication link.
Wherein more preferably, described landslide sensing system is laid along railway bed or along massif towards rail side.
Wherein more preferably, described landslide sensing system comprises light source and multiple Fibre Optical Sensor.
Wherein more preferably, isolator is provided with between described light source and described Fibre Optical Sensor.
Wherein more preferably, described landslide detection system is connected by fiber coupler with described landslide detection system.
Mountain landslide supervision system cost provided by the present invention is lower, antijamming capability strong, energy Real-Time Monitoring landslide change information, and has the beneficial effect such as high security and high reliability.
Accompanying drawing explanation
Fig. 1 is the one-piece construction schematic diagram of mountain landslide supervision system provided by the present invention;
Fig. 2 is the structural representation of another embodiment of mountain landslide supervision system.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
The invention provides a kind of mountain landslide supervision system, be mainly used in railway disaster prevention safety monitoring system.As shown in Figure 1, this mountain landslide supervision system comprises: landslide detection system, monitoring host computer system and landslide sensing system; Wherein, sensing system sensing landslide, landslide change information transfers to landslide detection system, landslide detection system is changed sensing signal after receiving described landslide change information and is transferred to described monitoring host computer system, and monitoring host computer system stores and processes the landslide change information received.This landslide change information real-time Transmission is to monitor terminal the most at last for monitoring host computer system, and monitor terminal can information in Real-time Obtaining monitoring host computer consult landslide changing condition, to process dangerous situation in time.The present invention not only may be used for railway disaster prevention safety monitoring system, can also be applied to highway disaster prevention safety monitoring system.Detailed description is launched to the present invention below.
As depicted in figs. 1 and 2, the landslide sensing system in the present invention is made up of light source and multiple sensor, and sensor multiple spot is connected.Light source is preferably wideband light source, for sending light signal in real time to sensor.Sensor is for sensing landslide change information.This sensor preferred fiber sensor, preferably selects optical fiber stress sensor.Certainly, the sensor of landslide sensing system is not limited only to optical fiber stress sensor, and other sensor devices with same function still can realize the sensing to landslide change information.The quantity of Fibre Optical Sensor can be connected according to the engineering monitoring demand of reality, such as two to dozens of.The Fibre Optical Sensor of landslide sensing system can be laid bottom railway bed or massif.For reducing harmful effect that reflected light produces the spectral output power stability of light source, raising light wave transmissions efficiency, between light source and Fibre Optical Sensor, be provided with isolator.After mountain landslide supervision system starts, the broadband optical signal sent by light source is transferred on the Fibre Optical Sensor of serial connection through isolator, after the wavelength chooses of these fiber gratings, is reflected with the narrow band light of different wave length.When there is landslide, the landslide change of Fibre Optical Sensor sensing, the fiber grating of optical fiber stress sensor strains together with elastic body, causes the peak wavelength of fiber grating reflected light to drift about, by realizing the sensing of counter stress and strain to the tolerance of wavelength shift.Landslide change information is sent to landslide detection system with light signal form.According to the feature of Fibre Optical Sensor, landslide sensing system effectively can not monitored landslide, and without the need to setting up supply line in addition, high by electromagnetic interference (EMI), precision, can work by real-time online.
As shown in Figure 2, in the present invention, landslide sensing system is connected by fiber coupler with landslide detection system.Landslide detection system comprises filter unit, photoelectric conversion unit, signal processing unit, communication unit.Landslide detection system gathers the landslide change information of landslide sensing system transmission, and changes and detect this information by communication link to monitoring host computer system.After mountain landslide supervision system starts, the landslide change information of the filter unit real-time reception landslide sensing system transmission of landslide detection system also transfers to photoelectric conversion unit; Photoelectric conversion unit receives this information, converts this information to electric signal, and transfer to signal processing unit from light signal; Electric signal after this conversion of signal processing unit processes, when massif side slope internal stress changes, detected the change of wavelength by landslide monitoring module, this change is STRESS VARIATION, and this STRESS VARIATION is transferred to communication unit by signal processing unit; The electric signal of communication unit Received signal strength processing unit processes, and by communication link to monitoring host computer system.
As depicted in figs. 1 and 2, in order to improve the degree of accuracy of the availability of mountain landslide supervision system, security, reliability and sensing, mountain landslide supervision system provided by the invention preferably adopts double copies pattern.In two groups of mountain landslide supervision systems, Fibre Optical Sensor is laid along railroad track both sides or along massif towards rail side, and two groups of Fibre Optical Sensors sense the change of massif slope and land slide in real time.Two cover mountain landslide supervision systems work alone completely, have electromagnetism interference, precision high, can the advantage such as real-time online work, ensure that any a set of mountain landslide supervision system failure can not normally be run by influential system.
The course of work of mountain landslide supervision system provided by the invention is such: after system starts, wideband light source sends broadband optical signal in real time, this light signal is by isolator and coupler transfer on the optical fiber stress sensor of serial connection, and optical fiber stress sensor senses the landslide change information of railway both sides massif slope and land slide in real time; Broadband optical signal is after the wavelength chooses of these optical fiber stress sensors, and the narrow band light of different wave length is reflected, reflected light by fiber coupler to this landslide change information of landslide detection system real-time Transmission.The landslide change information of the filter unit real-time reception landslide sensing system transmission of landslide detection system also transfers to photoelectric conversion unit; Photoelectric conversion unit receives this information, converts this information to electric signal, and transfer to signal processing unit from light signal; Electric signal after this conversion of signal processing unit processes, signal processing unit, through identifying these wavelength, obtains one group of STRESS VARIATION information and transfers to communication unit; The electric signal of communication unit Received signal strength processing unit processes by communication link to monitoring host computer system.This landslide change information stores by monitoring host computer system, and the data analysis process that monitoring host computer system acceptance arrives, finally obtains the distribution situation that side slope is under pressure.Monitor terminal can landslide change information in Real-time Obtaining monitoring host computer, judges whether to produce landslide or landslide, and where necessary (such as roadbed change exceedes safe range) report to the police.Before the landslide change information of monitor terminal acquisition exceedes alarm threshold value, this mountain landslide supervision system can show this landslide change information, and can real-time report or the dangerous situation of arrangement process in time.
Cost of the present invention is lower, antijamming capability strong, adopts the many Fibre Optical Sensors of two group, improves the availability of total system, safety and reliability.Utilize the unmanned Real-Time Monitoring that mountain landslide supervision system provided by the invention can realize landslide change information, and uninterrupted monitoring can be accomplished.Report to the police before roadbed change exceedes safe range, the generation of the accidents such as effective pre-train derailing prevention.
Above the mountain landslide supervision system towards railway anti-disaster provided by the present invention is described in detail.For one of ordinary skill in the art, to any apparent change that it does under the prerequisite not deviating from connotation of the present invention, all by formation to infringement of patent right of the present invention, corresponding legal liabilities will be born.
Claims (3)
1., towards a mountain landslide supervision system for railway anti-disaster, it is characterized in that comprising landslide detection system, monitoring host computer system and two groups of landslide sensing systems;
Landslide sensing system described in two groups is laid towards rail side along railroad track both sides or along massif;
Each described landslide sensing system comprises light source and multiple optical fiber stress sensor; Described light source sends broadband optical signal in real time, described broadband optical signal is after the wavelength chooses of described optical fiber stress sensor, the narrow band light of different wave length is reflected, reflected light by fiber coupler to detection system real-time Transmission landslide, landslide change information;
When there is landslide, the landslide change of optical fiber stress sensor sensing, the fiber grating of optical fiber stress sensor strains together with elastic body, the peak wavelength of fiber grating reflected light is caused to drift about, by realizing the sensing of counter stress and strain to the tolerance of wavelength shift, landslide change information is sent to landslide detection system with light signal form;
Described landslide detection system processes and is converted to sensing signal after receiving described landslide change information, transfers to described monitoring host computer system;
Described monitoring host computer system storage also processes described landslide change information.
2. mountain landslide supervision system as claimed in claim 1, is characterized in that:
Described landslide detection system comprises filter unit, photoelectric conversion unit, signal processing unit, communication unit;
Described filter unit receives the landslide change information of described landslide sensing system transmission, transfers to described photoelectric conversion unit; Described photoelectric conversion unit converts described landslide change information to electric signal by light signal, transfers to described signal processing unit; Electric signal after described signal processing unit processes conversion, transfers to described communication unit; Described communication unit is by the extremely described monitoring host computer system of the electric signal after conversion described in communication link.
3. mountain landslide supervision system as claimed in claim 1, is characterized in that:
Isolator is provided with between described light source and described optical fiber stress sensor.
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| CN201210506368.6A CN103000001B (en) | 2012-11-30 | 2012-11-30 | Landslide monitoring system for railway disaster prevention |
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| CN201210506368.6A CN103000001B (en) | 2012-11-30 | 2012-11-30 | Landslide monitoring system for railway disaster prevention |
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| CN103000001B true CN103000001B (en) | 2015-07-22 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104217542A (en) * | 2014-09-12 | 2014-12-17 | 重庆大学 | Mountain road slope real-time monitoring and early warning device |
| CN106643540A (en) * | 2016-12-08 | 2017-05-10 | 上海交通大学 | Optical fiber collection and analysis double-backup device for ocean engineering |
| CN106840013A (en) * | 2016-12-29 | 2017-06-13 | 北京希卓信息技术有限公司 | Sliding monitoring sensor and Slope Sliding strain monitoring system |
| CN108755321B (en) * | 2018-06-19 | 2019-10-15 | 嵇旭辉 | Subgrade construction protective device |
| CN113393646B (en) * | 2021-05-08 | 2022-09-16 | 杭州戬威科技有限公司 | A landslide ultrasonic monitoring system |
| CN115457739B (en) * | 2022-11-11 | 2023-02-28 | 四川师范大学 | Geological disaster early warning method and device, electronic equipment and storage medium |
| CN116935581B (en) * | 2023-07-21 | 2024-05-03 | 深圳市天工测控技术有限公司 | Mountain landslide early warning method and system based on multi-sensing monitoring |
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