CN102163363A - Landslide real-time monitoring and warning system - Google Patents
Landslide real-time monitoring and warning system Download PDFInfo
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- CN102163363A CN102163363A CN 201110086453 CN201110086453A CN102163363A CN 102163363 A CN102163363 A CN 102163363A CN 201110086453 CN201110086453 CN 201110086453 CN 201110086453 A CN201110086453 A CN 201110086453A CN 102163363 A CN102163363 A CN 102163363A
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Abstract
The invention discloses a landslide real-time monitoring and warning system. The system comprises a main control node and a plurality of sensor nodes; each sensor node comprises a global positioning system (GPS) module, a vibration trigger module, a micro electro mechanical system (MEMS) accelerometer, a memory, an advanced reduced instruction-set computer (RISC) machine (ARM) processor, a wireless transmission module and a power supply module; the main control node consists of a GPS module, a wireless transmission module, a memory, an ARM processor and an alarm; the sensor nodes acquire mountain deformation parameters through the GPS modules, acquire an instantaneous abnormal underground vibration signal through the MEMS accelerometer, and send data to the main control node through the wireless transmission modules; the main control node receives the mountain deformation parameters and the instantaneous abnormal vibration data of the sensor nodes through the wireless transmission modules, comprehensively analyzes the mountain deformation parameters and the instantaneous abnormal vibration data, and sends landslide warning information to the alarm. The system can be used for monitoring the state of a mountain in real time and timely detecting premonition of landslides and has the advantages of flexible deployment and convenience for use.
Description
Technical field
The present invention relates to geologic hazard monitoring field, especially a kind of landslide is monitoring and early warning system in real time.
Background technology
Geologic hazards such as earthquake both at home and abroad, landslide, rubble flow in recent years take place frequently, especially in China, and owing to excessive exploitation to resource, the physical environment severe exacerbation, various geologic hazards have caused very big prestige evil to the people's life, property safety.In addition, broken destructive disaster such as along with the continuous construction of infrastructure such as large hydropower station, reservoir, highway, railway engineering, come down, breach a dyke, subside is also having a strong impact on safe in utilization and life-span of these infrastructure.According to incompletely statistics; China is annual to come down, rubble flow, tens thousand of of various geologic hazards such as subside; that can make early warning before disaster takes place is less than 1/10th; how these geologic hazards are monitored and early warning; conscientiously the protection people's safety of life and property is the current important topic that faces of China.
Monitoring and early warning to geologic hazards such as coming down, subside all is action by government usually at present, needs to mobilize great amount of manpower and material resources, utilizes large-scale, expensive instrument and equipment to monitor.Main monitoring method has: the unusual observation method of macroscopic view (showing displacement, earth subsidence, ground cleave, protuberance etc. as animal anomaly, Temin, the face of land), physical prospecting method, displacement-measurement procedure, water level abnormality analytic approach, remote sensing aerophotographic method etc.But these methods exist the monitoring equipment volume big, need problems such as the professional operates, can only monitor the important area of minority, can't be generalized to the vast area that has potential safety hazard, be difficult to satisfy rural area, enterprises and individuals demand geology disaster monitoring and early warning.
Monitoring of existing landslide and method for early warning and device all need to predict by the variation of observing or survey geologic structure the generation of geologic hazard, but, because there is very big contingency in the generation of geologic hazards such as coming down, subside, these method and apparatus can only provide the possibility of geologic hazards such as coming down, subside, can't accurately forecast the time that disaster takes place.Therefore, need a kind of miniaturization, low cost, geologic hazards such as landslide easy and simple to handle monitoring and early warning system in real time badly, to solve rural area, enterprises and individuals demand to geologic hazard monitorings such as coming down, subside and early warning.
Summary of the invention
The object of the present invention is to provide and a kind ofly can monitor system with early warning in real time geologic hazards such as landslides.This system deployment and easy to use, monitoring and early warning accuracy height can provide the omen early warning of reliable landslide for rural area, enterprise and human body user.
For achieving the above object, the sensor network formed by a main controlled node and a plurality of sensor node of the present invention.The sensor node distributed deployment is responsible for gathering the deformation of the massif face of land and the vibration signal of different observation stations in the diverse location (as shown in Figure 2) of massif, and sends to main controlled node by wireless transmission method; The positional information of main controlled node receiving sensor node and underground instantaneous vibration signal, and data are carried out analysis-by-synthesis, the early warning information that will come down sends to alarm, sends the classifying alarm signal.
Main controlled node can be deployed in the stable position of geologic structure (as shown in Figure 2), and the GPS module of main controlled node is resolved self-position by receiving gps satellite signal, and sends differential signal to sensor node.The sensor node distributed deployment is in existing possible position, potential landslide (as shown in Figure 2), and the GPS module of sensor node is resolved the position of self, and sent main controlled node to according to the differential signal of gps satellite signal and main controlled node transmission.Main controlled node calculates the relative position of different sensors node and main controlled node by the positional information of wireless mode reception different sensors node, can obtain the face of land deformation parameter of massif, for the landslide provides medium-term and long-term monitoring and early warning information.
When the oscillatory trigger of sensor node detects unusual ground vibration, trigger mems accelerometer and gather underground instantaneous vibration signal, and vibration signal is delivered to main controlled node.The underground instantaneous vibration information that massif face of land deformation parameter that main controlled node provides according to the GPS module and mems accelerometer provide is calculated the probability that the landslide takes place, and starts the alerting signal that alarm sends different brackets.
The present invention monitors and early warning the landslide unusually by detecting massif face of land deformation and underground instantaneous vibration.Face of land deformation energy reflects the variable condition of massif, predicts potential disaster of mountain massif coast; Underground instantaneous vibration abnormal signal has reacted the instantaneous change of massif, can detect the landslide omen exactly, provides real-time early warning information.Compare with the landslide pick-up unit that changes based on surface displacement, underground structure and massif degree of tilt, the present invention not only can provide medium-term and long-term early warning, the omen early warning of coming down accurately can also be provided, overcome long, the inaccurate shortcoming of time prediction of existing method and apparatus early warning cycle.
Description of drawings
Data transfer between Fig. 1 main controlled node and sensor node
Monitoring in real time of Fig. 2 landslide and early warning system network structure and deployment synoptic diagram
Fig. 3 sensor node circuit block diagram
Fig. 4 sensor node physical arrangement synoptic diagram
Fig. 5 main controlled node circuit block diagram
Fig. 6 main controlled node physical arrangement synoptic diagram
Embodiment
As shown in Figure 2, system is made up of a main controlled node and a plurality of sensor node.Main controlled node is deployed in constitutionally stable zone, and the observation basic point is provided, and as data processing centre (DPC).Sensor node deployment is used to monitor the deformation on the massif face of land and underground abnormal vibration signal in potential zone, landslide.Pass through wireless transmission method Data transmission and control information (as shown in Figure 1) between sensor node and the main controlled node.
The circuit block diagram of sensor node comprises GPS module, oscillatory trigger, mems accelerometer, storer, arm processor, wireless transport module, power module, gps satellite antenna and wireless receiving and dispatching antenna as shown in Figure 3.Its physical arrangement is made up of metal probe 1, pedestal 2, mems accelerometer 3, oscillatory trigger 4, sensor board 5, processor plate 6, radio communication plate 7, power management plate 8, rechargeable battery 9, solar cell 10, gps satellite antenna 11, wireless receiving and dispatching antenna 12 and package casing 13 as shown in Figure 4.Metal probe 1 connects firmly together with pedestal 2, is installed in the bottom of sensor node; Mems accelerometer 3 and oscillatory trigger 4 are fixed on pedestal 2 tops; Sensor node passes through metal probe 1 heeling-in in surface rock or firm stratum.Because metal probe 1, pedestal 2, oscillatory trigger 4 connect firmly with mems accelerometer 3 and are in the same place, the centre does not have the vibration damping link, have very big vibration signal and transmit bandwidth, therefore underground vibration signal can effectively be received by oscillatory trigger 4 and MEMS sensor 3 by probe 1 and pedestal 2.Sensor board 5 comprises that GPS module, vibration trigger and detection module, the GPS module receives the navigation signal of gps satellite by gps satellite antenna 11, and, carry out location compute in conjunction with the GPS differential signal that sends by main controlled node, obtain the high precision position information of sensor node; Vibration triggers and detection module receives the ground vibration signal that is transmitted by oscillatory trigger 4 and MEMS sensor 3.Sensor board 5 is delivered to processor plate 6 with high precision position information and vibration signal by interface circuit and handles.Signal after processor plate 6 will be handled sends to main controlled node by radio communication plate 7 by wireless receiving and dispatching antenna 12.Power management plate 8 is responsible for the management of charging and discharging of rechargeable battery 9 and solar cell 10, and is sensor board 5, processor plate 6 and 7 power supplies of radio communication plate.Solar cell 10 is responsible for sun power is converted to electric energy, is rechargeable battery 9 and the power supply of other circuit board.Package casing 13 provides packaging protection for sensor.
The circuit block diagram of main controlled node comprises GPS module, storer, arm processor, wireless transport module, power module, gps satellite antenna, wireless receiving and dispatching antenna and alarm as shown in Figure 5.Its physical arrangement is made up of metal probe 1, pedestal 2, sensor board 3, processor plate 4, radio communication plate 5, power management plate 6, rechargeable battery 7, solar cell 8, gps satellite antenna 9, wireless receiving and dispatching antenna 10, alarm lamp 11, hummer 12 and package casing 13 as shown in Figure 6.Metal probe 1 connects firmly together with pedestal 2, is installed in the bottom of sensor node, and sensor node passes through metal probe 1 heeling-in in surface rock or firm stratum.Sensor board 3 comprises the GPS module, and the GPS module is carried out location compute by the navigation signal of gps satellite antenna 9 reception gps satellites, obtains the high precision position information of sensor node, and resolves differential signal.Sensor board 3 is delivered to processor plate 4 with high precision position information and differential signal by interface circuit and handles.Differential signal after processor plate 4 will be handled sends to sensor node by radio communication plate 5 by wireless receiving and dispatching antenna 10.Wireless receiving and dispatching antenna 10 receives high precision position information and the ground vibration signal that is sent by each sensor node, deliver to processor plate 4 through radio communication plate 5 and carry out overall treatment, the probability of happening and the time prediction of acquisition landslide are delivered to alarm lamp 11 and hummer 12 carries out classifying alarm.Power management plate 6 is responsible for the management of charging and discharging of rechargeable battery 7 and solar cell 8, and is sensor board 3, processor plate 4, radio communication plate 5, alarm lamp 11 and hummer 12 power supplies.Solar cell 8 is responsible for sun power is converted to electric energy, is rechargeable battery 7 and the power supply of other circuit board.Package casing 13 provides packaging protection for sensor.
The present invention utilizes the GPS receiver module of distributed sensor node to adopt the difference localization method to obtain the high-accuracy positional information of sensor node and main controlled node, thereby obtains the deformation parameter on the massif face of land; Utilize the MEMS acceleration transducer to obtain underground instantaneous vibration abnormal signal, the real-time Monitoring Data of subsurface geology activity can be provided in conjunction with oscillatory trigger.Fusion treatment by to this two classes signal not only can obtain landslide early-warning information, can also obtain the omen time prediction of high-precision landslide.
The present invention also can be applicable to the monitoring and the early warning of geologic hazards such as surface subsidence, rubble flow by monitoring face of land deformation parameter and ground vibration signal.
Claims (10)
1. monitor and early warning system in real time a landslide, and it is characterized in that: system comprises a main controlled node and a plurality of sensor node; The sensor node distributed deployment can be monitored the massif deformation and the ground vibration information of diverse location; Main controlled node receives the massif deformation and the ground vibration information of the diverse location of each sensor node collection and transmission, and carries out fusion treatment, obtains massif state and landslide early warning information.
2. landslide as claimed in claim 1 is monitoring and early warning system in real time, it is characterized in that: wireless transport module is housed, can be sent to main controlled node to the massif surface deformation parameter of sensor node collection and underground instantaneous vibration signal by wireless mode, and the GPS differential data of main controlled node is sent to sensor node.
3. landslide as claimed in claim 1 is monitoring and early warning system in real time, it is characterized in that: adopt solar cell and rechargeable battery powered, and can round-the-clock, long-term unmanned work.
4. sensor node as claimed in claim 1 is characterized in that: the GPS module is housed, can gathers massif surface deformation parameter.
5. sensor node as claimed in claim 1 is characterized in that: oscillatory trigger is housed, when oscillatory trigger detects unusual ground vibration, triggers mems accelerometer and gather the ground vibration signal.
6. sensor node as claimed in claim 1 is characterized in that: mems accelerometer is housed, can gathers the ground vibration signal in real time.
7. sensor node as claimed in claim 1 is characterized in that: probe and pedestal are equipped with in the bottom, and mems accelerometer and oscillatory trigger are placed on the pedestal.
8. main controlled node as claimed in claim 1 is characterized in that: arm processor is housed, is responsible for the signal of collection of different sensors node and transmission is carried out fusion treatment.
9. main controlled node as claimed in claim 1 is characterized in that: the GPS module is housed, can determines the main controlled node position, and send differential signal to sensor node.
10. main controlled node as claimed in claim 1 is characterized in that: alarm is housed, can sends the alerting signal of different stage according to massif state and landslide early warning information.
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| CN102426395A (en) * | 2011-11-11 | 2012-04-25 | 铁道第三勘察设计院集团有限公司 | Slip mass volume parameter measuring method based on three-dimensional geologic remote sensing interpretation technology |
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| CN103472207B (en) * | 2013-09-30 | 2015-05-20 | 福州大学 | Equivalent looseness measuring method used for mountain landslide early warning |
| CN103472207A (en) * | 2013-09-30 | 2013-12-25 | 福州大学 | Equivalent looseness measuring method used for mountain landslide early warning |
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