CN207676462U - A kind of landslide monitoring prior-warning device and system - Google Patents
A kind of landslide monitoring prior-warning device and system Download PDFInfo
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Abstract
A kind of landslide monitoring prior-warning device of the utility model offer and system, are related to monitoring device technical field, landslide monitoring prior-warning device includes：Acoustic wave sensing devices, data acquisition and transmission device, data processor, warning device；Acoustic wave sensing devices are installed on landslide depth bore inner, the acoustic signals that rock fracture and friction generate when acquisition slip mass faces sliding, and generate sound wave sensing data according to the signal；Sound wave sensing data is transmitted to data processor by data acquisition and transmission device；Data processor carries out Spectrum Analysis to sound wave sensing data, extracts and identify that rock masses fracturing useful signal, generation are filtered result data, and according to being filtered result data, landslide is judged whether in sliding state is faced, if so, control warning device sends out alarm.The device is monitored by the sound wave ruptured to slip mass interior rock, is extracted, and can carry out facing sliding judgement to slip mass, is realized the timely forecast and early warning of landslide disaster, is improved the accuracy of landslide early warning.
Description
Technical field
The utility model is related to monitoring device technical fields, more particularly, to a kind of landslide monitoring prior-warning device and system.
Background technology
Landslide refers to influence of the native rock mass on slope due to many factors, under gravity, along certain soft
Plane of weakness or weak band, in whole or in part the phenomenon that inclined slope aspect lower slider.It is the most extensively and normal that landslide has become China's distribution
The geological disaster seen, and region of this geological disaster after the generation of constructing tunnel, underground mining and earthquake disaster more frequency
It is numerous, its main feature is that sudden strong and harm is huge.Landslide dynamic monitoring has become the important means prevented and reduced natural disasters, slip mass
Table and deep deformation monitoring are current routine monitoring technological means.
In existing slip mass earth's surface and deep deformation monitoring, generally use ground transaucer or non-contact sensor
Device carries out data acquisition.Ground transaucer refers generally to measure the pressure gauge of soil internal pressure, measures soil interior moisture content
Water pressure gauge or the displacement meter etc. of measured zone deformation.Noncontacting proximity sensor, including camera, video camera etc. obtain shadow
Sensor or LiDAR of picture etc. obtain the sensor of earth's surface three-dimensional point cloud, can intuitively show live shape when landslide occurs
Condition.
But by ground transaucer and noncontacting proximity sensor, the data acquired judge there is centainly stagnant to landslide
Property afterwards needs the landslide monitoring factor that needs could be obtained by flows such as post-processings, cannot be carried out to landslide disaster timely
Forecast and early warning.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of landslide monitoring prior-warning device and systems, by cunning
The sound wave of slopes interior rock rupture is monitored, extracts, and can carry out facing sliding judgement to slip mass, realize landslide disaster and
When forecast and early warning, improve landslide early warning accuracy.
In a first aspect, the utility model embodiment provides a kind of landslide monitoring prior-warning device, including：Sound wave sensing dress
It sets, data acquisition and transmission device, data processor, warning device；
Acoustic wave sensing devices are connect with data acquisition and transmission device, and data acquisition and transmission device is connect with data processor,
Data processor is connect with warning device；
Acoustic wave sensing devices are installed on landslide depth bore inner, rock fracture and friction production when acquisition slip mass faces sliding
Raw acoustic signals, and generate sound wave sensing data according to acoustic signals；
Sound wave sensing data is transmitted to data processor by data acquisition and transmission device；
Data processor carries out Spectrum Analysis to sound wave sensing data, extracts and identify rock masses fracturing useful signal, generates
It is filtered result data, and according to result data is filtered, judges landslide whether in sliding state is faced, if so, control
Warning device sends out alarm.
With reference to first aspect, the utility model embodiment provides the first possible embodiment of first aspect,
In, further include：Obliquity sensor or vibrating sensor；
Obliquity sensor or vibrating sensor are installed on landslide depth bore inner；
Obliquity sensor or the deformation data of vibrating sensor acquisition slip-crack surface position, and deformation data is sent to number
According to processor；
Data processor judges whether slip has occurred and that according to deformation data, if so, control warning device sends out police
Report.
With reference to first aspect, the utility model embodiment provides second of possible embodiment of first aspect,
In, data processor includes：Data filtering processing module and data storage；
Data filtering processing module is connect with data acquisition and transmission device and data storage respectively；
Data filtering processing module receives the sound wave sensing data transmitted by data acquisition and transmission device, and is passed to sound wave
Feel data and carry out Spectrum Analysis, extracts and identify that rock masses fracturing useful signal, generation are filtered result data；
Data storage stores sound wave sensing data and is filtered result data.
With reference to first aspect, the utility model embodiment provides the third possible embodiment of first aspect,
In, further include that data acquisition and transmission device includes：At least one of GPRS communication modules, cdma communication module.
With reference to first aspect, the utility model embodiment provides the 4th kind of possible embodiment of first aspect,
In, further include：Display device；
Display device is connect with data processor；
Display device to sound wave sensing data and is filtered result data and shows.
With reference to first aspect, the utility model embodiment provides the 5th kind of possible embodiment of first aspect,
In, further include：Interaction control device；
Interaction control device is connect with data acquisition and transmission device；
Interaction control device controls data acquisition and the data transmission of data acquisition and transmission device.
With reference to first aspect, the utility model embodiment provides the 6th kind of possible embodiment of first aspect,
In, further include：Power module；
Power module is connect with data processor；
Power module is powered for landslide monitoring prior-warning device.
With reference to first aspect, the utility model embodiment provides the 7th kind of possible embodiment of first aspect,
In, power module includes：Charging circuit and storing up electricity circuit；
Charging circuit connects external power supply and charges；
Storing up electricity circuit stores the charged amount of charging circuit, and powers for landslide monitoring prior-warning device.
With reference to first aspect, the utility model embodiment provides the 8th kind of possible embodiment of first aspect,
In, warning device includes at least one of visual alarm, voice guard, voice announcer.
Second aspect, the utility model embodiment also provide a kind of landslide monitoring early warning system, including monitoring center and
One or more landslide monitoring prior-warning device as described in relation to the first aspect；
Landslide monitoring prior-warning device is communicated to connect with monitoring center.
The utility model embodiment brings following advantageous effect：
In the landslide monitoring prior-warning device that the utility model embodiment provides, it is installed on the sound wave of landslide depth bore inner
Sensing device, the acoustic signals that rock fracture and friction generate when acquisition slip mass faces sliding, and generate sound wave according to acoustic signals
The sound wave sensing data is sent to data acquisition and transmission device by sensing data, and sound wave is sensed number by data acquisition and transmission device
According to remote transmission to data processor, data processor carries out Spectrum Analysis to sound wave sensing data, extracts and identifies that rock mass is broken
Useful signal is split, generation is filtered result data, and according to result data is filtered, and judges whether landslide is in and faces sliding shape
State makes warning device send out alarm if so, sending alarm command to control warning device.Landslide monitoring in the present embodiment
Prior-warning device is monitored by the sound wave ruptured to slip mass interior rock, is extracted, and can be carried out facing to slip mass sliding and be sentenced
It is disconnected, it realizes the timely forecast and early warning of landslide disaster, improves the accuracy of landslide early warning.
Other feature and advantage of the utility model will illustrate in the following description, also, partly from specification
In become apparent, or understood by implementing the utility model.The purpose of this utility model and other advantages are illustrating
Specifically noted structure is realized and is obtained in book, claims and attached drawing.
To enable the above objects, features, and advantages of the utility model to be clearer and more comprehensible, preferred embodiment cited below particularly, and
The appended attached drawing of cooperation, is described in detail below.
Description of the drawings
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific implementation mode or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, other drawings may also be obtained based on these drawings.
Fig. 1 is a kind of structural schematic diagram for landslide monitoring prior-warning device that the utility model embodiment one provides；
Fig. 2 is a kind of structural schematic diagram for landslide monitoring prior-warning device that the utility model embodiment two provides；
Fig. 3 is a kind of another structural schematic diagram for landslide monitoring prior-warning device that the utility model embodiment two provides；
Fig. 4 is a kind of structural schematic diagram for landslide monitoring early warning system that the utility model embodiment three provides.
Specific implementation mode
To keep the purpose, technical scheme and advantage of the utility model embodiment clearer, below in conjunction with attached drawing to this
The technical solution of utility model is clearly and completely described, it is clear that described embodiment is that the utility model part is real
Example is applied, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making
The every other embodiment obtained under the premise of creative work, shall fall within the protection scope of the present invention.
Currently, in the monitoring of existing landslide disaster, the data that are acquired by ground transaucer and noncontacting proximity sensor
Having certain hysteresis quality is judged to landslide, forecast and early warning in time cannot be carried out to landslide disaster.
Based on this, the utility model embodiment provides a kind of landslide monitoring prior-warning device and system, by slip mass
The sound wave of interior rock rupture is monitored, extracts, and can carry out facing sliding judgement to slip mass, realize the timely pre- of landslide disaster
Report and early warning improve the accuracy of landslide early warning.
It is pre- to a kind of landslide monitoring disclosed in the utility model embodiment first for ease of understanding the present embodiment
Alarm device describes in detail.
Embodiment one：
The utility model embodiment provides a kind of landslide monitoring prior-warning device, and shown in Figure 1, which includes：Sound wave
Sensing device 11, data acquisition and transmission device 12, data processor 13, warning device 14.
Wherein, Acoustic wave sensing devices 11 are connect with data acquisition and transmission device 12, data acquisition and transmission device 12 and data
Processor 13 connects, and data processor 13 is connect with warning device 14；Acoustic wave sensing devices 11 are installed in landslide depth drilling
Portion, the acoustic signals that rock fracture and friction generate when acquisition slip mass faces sliding, and generate sound wave according to acoustic signals and sense number
According to；Sound wave sensing data is transmitted to data processor 13 by data acquisition and transmission device 12；Data processor 13 senses sound wave
Data carry out Spectrum Analysis, extract and identify rock masses fracturing useful signal, and generation is filtered result data, and according to filtering at
Result data is managed, judges landslide whether in sliding state is faced, if so, control warning device 14 sends out alarm.
The Acoustic wave sensing devices 11 in the utility model embodiment are sonic wave detector as a preferred implementation manner,
The acoustic signals that rock fracture and friction generate when slip mass faces sliding can be acquired in real time.Specifically, sonic wave detector mainly by
Reception system (receiver receives energy converter) and microcomputer (with data record, processing) composition.Wherein, it is one to receive energy converter
Kind realize the instrument that audio communication and electric energy are mutually converted, receiver is that the electric pulse that will be received is amplified, and by acoustic waveform
It is shown on fluorescent screen, microcomputer can carry out data processing to acoustic signals.
Landslide can generate the sound wave of certain frequency when in sliding state is faced because of rock fracture, friction or collision, generate
Sound emission frequency concentrate in infrasonic sound and common acoustical range (be less than 20kHz), above-mentioned sonic wave detector by receiver and
Energy converter is received, receives the acoustic signals within the scope of said frequencies, and these acoustic signals are converted by sound wave by microcomputer and are passed
Feel data, is sent to data acquisition and transmission device 12.
Above-mentioned data acquisition and transmission device 12 can be GPRS communication modules, can also be cdma communication module, either
Other communication modules that remote data transmission may be implemented.
Further, data processor 13 specifically includes：Data filtering processing module 131 and data storage 132,
In, data filtering processing module 131 is connect with data acquisition and transmission device 12 and data storage 132 respectively；Data filtering
Processing module 131 receives the sound wave sensing data transmitted by data acquisition and transmission device 12, and to sound wave sensing data into traveling wave
Spectrum analysis extracts and identifies that rock masses fracturing useful signal, generation are filtered result data；Data storage 132 stores sound wave
Sensing data and it is filtered result data.
In addition, above-mentioned warning device 14 includes at least one of visual alarm, voice guard, voice announcer.
Due to coming down when in sliding state is faced, the sound wave of certain frequency can be generated because of rock fracture, friction or collision,
The sound emission frequency of generation concentrates in infrasonic sound and common acoustical range (be less than 20kHz), than slip mass signs of deformation earlier
It sends out.Therefore, the landslide monitoring prior-warning device that the present embodiment is provided, the sound wave by being installed on landslide depth bore inner pass
Induction device 11 is in real time monitored the sound wave of slip mass interior rock rupture, extracts, and by data processor 13 to cunning
Slopes carry out facing sliding judgement, provide the time to the forecast in advance and early warning of landslide disaster, can control warning device in time
14 alarm, and improve the accuracy of landslide early warning.
Embodiment two：
The utility model embodiment provides a kind of landslide monitoring prior-warning device, shown in Fig. 2 and Fig. 3, the device in addition to
Including Acoustic wave sensing devices 21 identical with embodiment one, data acquisition and transmission device 22, data processor 23, warning device 24
Outside, further include：Display device 26, interaction control device 25, power module 27 and obliquity sensor 28 and/or vibrating sensor
29。
Wherein, obliquity sensor 28 or vibrating sensor 29 are installed on landslide depth bore inner；Obliquity sensor 28
Or vibrating sensor 29 acquires the deformation data of slip-crack surface position, and deformation data is sent to data processor 23；Data
Processor 23 judges whether slip has occurred and that according to deformation data, if so, control warning device 26 sends out alarm.
When specific implementation, obliquity sensor 28 may be used, carry out the secondary-confirmation of the landslide plane of disruption, can also adopt
It is used simultaneously with vibrating sensor 29, or both.Obliquity sensor 28 can measure tested plane inclining relative to horizontal position
Gradient.In the present embodiment, which can acquire the gradient of the landslide plane of disruption in real time.Vibrating sensor 29 wraps
Multiple types are included, can be used for a variety of data such as picking rate, angle, displacement, be preferably in the present embodiment, electric vortex type shakes
Dynamic sensor can be changed by the distance between sensor end and testee to measure the vibration displacement or width of object
Value.Electric vortex type vibrating sensor has a wide frequency range, and linear working range is big, high sensitivity and non-contact measurement
The advantages that.
Further, the landslide monitoring prior-warning device in the present embodiment further includes display device 26；Display device 26 and number
It is connected according to processor 23；Display device 26 is to sound wave sensing data and is filtered result data and shows.
Display device 26 include it is following in it is one or more：Liquid crystal display, LED display, LCD display.This reality
It applies example to be preferably, LED touch display screen.
Further, interaction control device 25 is connect with data acquisition and transmission device 22, controls data acquisition and transmission device
22 data acquisition and data transmission.
The power module 27 that the present embodiment is provided, including：Charging circuit and storing up electricity circuit；Charging circuit connects external electricity
It simultaneously charges in source；Storing up electricity circuit stores the charged amount of charging circuit, and powers for landslide monitoring prior-warning device.
The process that landslide monitoring is carried out by the landslide monitoring prior-warning device is as follows：
(1) at landslide monitoring scene, deep deviational survey bore deformation is measured using artificial inclinometer, tentatively verifies the potential cunning in landslide
Broken face position.
(2) Acoustic wave sensing devices are laid in landslide depth bore inner, close proximity to Potential failure surface, the frequency range of monitoring
For (0.1Hz-20kHz), it is additionally provided with obliquity sensor or vibrating sensor in the present embodiment, at Acoustic wave sensing devices, visits
After measuring acoustic signals, the deformation of slip-crack surface position may generate therewith, be carried out using obliquity sensor or vibrating sensor
Secondary verification confirms that slip has occurred and that.
(3) data acquisition transmission unit is arranged in earth's surface, is acquired to the signal of Acoustic wave sensing devices and remote transmission,
So that monitoring data is passed through the telecommunication techniques such as GPRS/CDMA, is transmitted to data processor.
(4) carry out Spectrum Analysis is carried out to monitoring data using the data filtering processing module in data processor, extract,
Identify that rock masses fracturing useful signal, generation are filtered result data；
(5) it is based on being filtered result data, judges whether landslide is in and face sliding state, the report at remote control landslide scene
Alarm device sends alarm signal.
The landslide monitoring prior-warning device that the present embodiment is provided, the sound wave by being installed on landslide depth bore inner sense
Device 21 is in real time monitored the sound wave of slip mass interior rock rupture, extracts, and will by data acquisition and transmission device 22
The sound wave sensing data of acquisition is sent to data processor 23, further face sliding to slip mass by data processor 23 and sentence
It is disconnected, the time is provided to the forecast in advance and early warning of landslide disaster, warning device 24 can be controlled in time and alarmed, is improved
The accuracy of landslide early warning.
Embodiment three：
The utility model embodiment also provides a kind of landslide monitoring early warning system, shown in Figure 4, which includes monitoring
Center 32 and one or more landslide monitoring prior-warning device 31 as described in above-mentioned any embodiment；Landslide monitoring early warning fills
31 are set to communicate to connect with monitoring center 32.
In addition, the system can also include：The handheld terminal 33 being connect with monitoring center 32.
Specifically, multiple landslide monitoring prior-warning devices 31 for being laid in each region are by the sound wave sensing data of acquisition, with
And by analysis processing obtain be filtered result data, monitoring center 32, monitoring center 32 are sent to by communication module
Macro or mass analysis further is carried out to above-mentioned data, generates the landslide disaster predictive information of each region, and by above-mentioned landslide disaster
Predictive information is sent to the handheld terminal 33 of related personnel.
Above-mentioned handheld terminal 33 includes smart mobile phone, IPAD etc..
The landslide monitoring early warning system that the utility model embodiment is provided contains described in embodiment one or embodiment two
Landslide monitoring prior-warning device, above-mentioned function equally may be implemented, details are not described herein.
In addition, in the description of the utility model embodiment unless specifically defined or limited otherwise, term " installation ",
" connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally connect
It connects；It can be mechanical connection, can also be electrical connection；It can be directly connected, can also indirectly connected through an intermediary, it can
To be the connection inside two elements.For the ordinary skill in the art, it can understand above-mentioned term with concrete condition
Concrete meaning in the present invention.
It is in the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
The utility model and simplifying describes for ease of description, do not indicate or imply the indicated device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for description purposes only, and are not understood to indicate or imply relative importance.
Finally it should be noted that：Embodiment described above, only specific embodiment of the present utility model, to illustrate this
The technical solution of utility model, rather than its limitations, the scope of protection of the utility model is not limited thereto, although with reference to aforementioned
The utility model is described in detail in embodiment, it will be understood by those of ordinary skill in the art that：It is any to be familiar with this skill
The technical staff in art field within the technical scope disclosed by the utility model, still can be to the skill recorded in previous embodiment
Art scheme modify or can readily occur in variation or equivalent replacement of some of the technical features；And these modifications,
Variation is replaced, the spirit and model of the utility model embodiment technical solution that it does not separate the essence of the corresponding technical solution
It encloses, should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model is answered described is wanted with right
Subject to the protection domain asked.
Claims (10)
1. a kind of landslide monitoring prior-warning device, which is characterized in that including：Acoustic wave sensing devices, data acquisition and transmission device, data
Processor, warning device；
The Acoustic wave sensing devices are connect with the data acquisition and transmission device, the data acquisition and transmission device and the data
Processor connects, and the data processor is connect with the warning device；
The Acoustic wave sensing devices are installed on landslide depth bore inner, rock fracture and friction production when acquisition slip mass faces sliding
Raw acoustic signals, and generate sound wave sensing data according to the acoustic signals；
The sound wave sensing data is transmitted to the data processor by the data acquisition and transmission device；
The data processor carries out Spectrum Analysis to the sound wave sensing data, extracts and identify rock masses fracturing useful signal,
Generation is filtered result data, and is filtered result data according to described, judges whether landslide is in and faces sliding state, if
It is to control the warning device to send out alarm.
2. landslide monitoring prior-warning device according to claim 1, which is characterized in that further include：Obliquity sensor shakes
Dynamic sensor；
The obliquity sensor or the vibrating sensor are installed on the landslide depth bore inner；
The obliquity sensor or the deformation data of vibrating sensor acquisition slip-crack surface position, and by the deformation data
It is sent to the data processor；
The data processor judges whether slip has occurred and that according to the deformation data, if so, the control alarm dress
It sets and sends out alarm.
3. landslide monitoring prior-warning device according to claim 1, which is characterized in that the data processor includes：Data
It is filtered module and data storage；
The data filtering processing module is connect with the data acquisition and transmission device and the data storage respectively；
The data filtering processing module receives the sound wave sensing data transmitted by the data acquisition and transmission device, and to institute
It states sound wave sensing data and carries out Spectrum Analysis, extract and identify that rock masses fracturing useful signal, generation are filtered result data；
The data storage stores the sound wave sensing data and described is filtered result data.
4. landslide monitoring prior-warning device according to claim 1, which is characterized in that further include the data acquisition transmission dress
Set including：At least one of GPRS communication modules, cdma communication module.
5. landslide monitoring prior-warning device according to claim 1, which is characterized in that further include：Display device；
The display device is connect with the data processor；
The display device shows the sound wave sensing data and the result data that is filtered.
6. landslide monitoring prior-warning device according to claim 1, which is characterized in that further include：Interaction control device；
The interaction control device is connect with the data acquisition and transmission device；
The interaction control device controls data acquisition and the data transmission of the data acquisition and transmission device.
7. landslide monitoring prior-warning device according to claim 1, which is characterized in that further include：Power module；
The power module is connect with the data processor；
The power module is powered for landslide monitoring prior-warning device.
8. landslide monitoring prior-warning device according to claim 7, which is characterized in that the power module includes：Charging electricity
Road and storing up electricity circuit；
The charging circuit connects external power supply and charges；
The storing up electricity circuit stores the charged amount of the charging circuit, and powers for the landslide monitoring prior-warning device.
9. landslide monitoring prior-warning device according to claim 1, which is characterized in that the warning device includes light warning
At least one of device, voice guard, voice announcer.
10. a kind of landslide monitoring early warning system, which is characterized in that including monitoring center and one or more such as claim
1 to 9 any one of them landslide monitoring prior-warning device；The landslide monitoring prior-warning device is communicated to connect with the monitoring center.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110021148A (en) * | 2019-04-23 | 2019-07-16 | 郑州科技学院 | A kind of mud-stone flow disaster alarm device for power station |
| CN110208488A (en) * | 2019-05-31 | 2019-09-06 | 贵州大学 | A kind of shallow failure monitoring system and its working method based on elastic wave |
| CN111198398A (en) * | 2020-02-24 | 2020-05-26 | 中国地震局地壳应力研究所 | Projection type landslide monitoring device, system and method |
| CN111260891A (en) * | 2020-03-05 | 2020-06-09 | 罗少辉 | Rainfall type landslide monitoring and early warning device |
| CN112598882A (en) * | 2020-12-09 | 2021-04-02 | 湖北省地质勘察基础工程有限公司 | Mountain region calamity early warning device of community |
| WO2021083008A1 (en) * | 2019-10-29 | 2021-05-06 | 清华大学 | Flexible landslide monitoring device and method thereof |
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2017
- 2017-12-20 CN CN201721796031.8U patent/CN207676462U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110021148A (en) * | 2019-04-23 | 2019-07-16 | 郑州科技学院 | A kind of mud-stone flow disaster alarm device for power station |
| CN110021148B (en) * | 2019-04-23 | 2021-04-23 | 郑州科技学院 | Debris flow disaster early warning device for hydropower station |
| CN110208488A (en) * | 2019-05-31 | 2019-09-06 | 贵州大学 | A kind of shallow failure monitoring system and its working method based on elastic wave |
| WO2021083008A1 (en) * | 2019-10-29 | 2021-05-06 | 清华大学 | Flexible landslide monitoring device and method thereof |
| CN111198398A (en) * | 2020-02-24 | 2020-05-26 | 中国地震局地壳应力研究所 | Projection type landslide monitoring device, system and method |
| CN111260891A (en) * | 2020-03-05 | 2020-06-09 | 罗少辉 | Rainfall type landslide monitoring and early warning device |
| CN112598882A (en) * | 2020-12-09 | 2021-04-02 | 湖北省地质勘察基础工程有限公司 | Mountain region calamity early warning device of community |
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