CN103177532B - A kind of Subgrade Landslide remote monitoring method and device - Google Patents
A kind of Subgrade Landslide remote monitoring method and device Download PDFInfo
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Abstract
A kind of Subgrade Landslide remote monitoring method and device, devise line array type capacitive transducer to detect in real time rupture surface position, landslide, based on single-chip microcomputer, Real-time Collection is carried out to the measurement data of line array type capacitive transducer, utilize network control chip by single-chip microcomputer accessing Internet, by the network communication protocol between establishment single-chip microcomputer and remote data server, achieve by data center website the measurement data collected by single-chip microcomputer to be real-time transmitted in remote data server and carry out data storage.Pass through equipment for surfing the net, user logs in data center website and conducts interviews to the storage data in remote data server, obtains rupture surface position, landslide, realizes the remote real time monitoring to Subgrade Landslide situation, and by website, alarm control is carried out to remote alerting device.Adopt this programme, the remote monitoring to Subgrade Landslide position and intensity can be realized convenient, fast and efficiently, solve the measurement difficult problem under the measurement of many places and rugged surroundings well.
Description
Technical field
The present invention relates to remote monitoring and the control technology of the design of a kind of line array type capacitance displacement sensor and employing single-chip microcomputer.
Background technology
The Frequent Accidents of car crash that highway subgrade landslide is caused highway pavement to cave in and caused, therefore, to the Real-Time Monitoring of highway subgrade landslide disaster and alarm extremely important.
Current landslide monitoring has two kinds of large types, and a class is the monitoring to earth's surface landslide absolute displacement, and another kind of is monitoring to landslide depth displacement.
For the monitoring method of first kind earth's surface landslide absolute displacement, because landslide, earth's surface is the most significantly characterized as surface sliding, need monitoring be the slip of surperficial soil property and feature (as slide displacement size and speed) thereof and slide time ground dynamically be out of shape.Current earth's surface deformation measurement method mainly contains: geodesic method, GPS mensuration, earth's surface oblique photogrammetry and surface crack observation etc.
(1) geodesic method: set up a series of reference point from the liptinite landslide, set up multiple monitoring point in sliding mass, wherein reference point is fixed point, and monitoring point is motor point.By observing and comparing monitoring point coordinate to determine monitoring point motion state with the change of the locus of reference point.The instrument that traditional geodetic surveying uses mainly contains: transit, spirit-leveling instrument and stadimeter etc.Its shortcoming needs artificial field operation, data acquisition inconvenience, unsuitable long-term continuous coverage etc.
(2) GPS method: GPS (Global Positioning System, GPS) continuous, real-time, the high-precision location of global range can be provided, GPS receiver user, computing machine, input and output control display device, accurately can locate ground measurement point.Shortcoming is that GPS receiver user present position will have abundant moonscope number and enough strong satellite wireless transmission signal, and in some field locations, can not meet this Received signal strength requirement well.
(3) earth's surface oblique photogrammetry: be mainly used for change and the vergence direction of monitoring sliding mass surficial inclination.Current common instrument has U.S. Sinco disc type inclinator, sensitivity 8 ", range ± 30 °, be applicable to tilt variation larger time monitoring.
(4) surface crack observation: surface crack observation common instrument has crack gauge, convergence gauge, steel wire displacement meter and dislocation meter.Also at both sides, crack bidding point and peg, can measure with steel ruler and vernier caliper.Ground fissure monitoring instrument is generally across layouts such as crack, tomography, interlayer, aspects.
The observation of landslide depth displacement monitoring rate surface displacement can obtain the information of deeper reflection landslide state.Internal displacement monitoring can judge to come down the information such as change of rupture surface position, main sliding direction of landslide, landslide displacement from deep to shallow, landslide speed more accurately.Landslide depth displacement monitoring main method has: inner inclination monitoring, inner relative displacement monitoring and supporting construction monitoring etc.
(1) inner inclination monitoring: adopt clinograph more.Borehole inclinometer monitoring is the slope measuring boring with inclinator at regular intervals piecemeal, thus obtain Rock And Soil inner horizontal displacement and over time, its principle is affected by gravity according to pendulum, measuring take vertical line as the arc angle change of benchmark, is applicable to slowly, the monitoring of the at the uniform velocity sliding mass of deformation stage.When being out of shape aggravation or local accident occurs, because deflection is large, extruding inclinometer pipe is sharply out of shape makes gauge head pass through and to cause monitoring to be scrapped.
(2) inner relative displacement monitoring: come down when being out of shape, the relative position of the inner point-to-point transmission of gliding mass can change, and can install instruments the relative displacement or relative settlement of measuring point-to-point transmission in the body of slope.The general point that selection one distortion is relatively small beyond Landslide Deformation scope is as reference point, and it is significantly local that another point is then positioned at slope body deformability.Relative displacement observation generally adopts multipoint displacement meter, can measure the change in displacement of slope body along drilling axis.Multipoint displacement meter can arrange the measuring point 3 ~ 6 of different depth along its length in same boring, can reach 10 points abroad.
(3) supporting construction monitoring: mainly contain anchor stress monitoring, the monitoring of anchorage cable anchoring power, reinforcement stresses strain monitoring, retaining structure and slope body contact monitoring etc.To the monitoring multiselect bolt stress meters of anchor stress, every root anchor pole generally arranges 3 ~ 5 measuring points, can understand the stress of anchor pole, consolidation effect and the stress regularity of distribution along anchor pole.Can select pressure gauge or pressure cell to the monitoring of retaining structure and gliding mass contact, be generally be arranged in face of gliding mass glide direction the position that supporting construction contacts with gliding mass by certain degree of depth.
Visible above, adopting inner relative displacement to monitor has good advantage to highway subgrade landslide method, but the line array type sensor be not also applicable at present carries out the come down exact position of rupture surface and the measurement of landslide intensity.In addition, Subgrade Landslide is the process of long term accumulation, people can not always in the wild scene stare at, and current data are transmitted and are mostly gathered at the scene, are unfavorable for long-range and long-term monitoring.In the measuring technique of existing landslide, also there is an a lot of difficult problem, do not solved well in monitoring technology in the presence of a harsh environment, many geographically distributed data acquisition technology, and the aspect such as remote measurement and control technology.Also detailed description and the report about being carried out remote monitoring and control alarm to highway subgrade landslide by remote internet is lacked in existing document.
Summary of the invention
For can not unmanned and by the defect of internet remote monitoring for a long time in the measuring technique of above-mentioned existing landslide, the present invention proposes a kind of Subgrade Landslide remote monitoring method and device, it realizes object, design a kind of line array type capacitive transducer, rupture surface position, landslide and intensity are accurately measured, Monitoring Data is by single-chip microcomputer collection in worksite, and by network control chip accessing Internet, by the network communication protocol between establishment single-chip microcomputer and server, by the measurement data real-time storage that collected by single-chip microcomputer to far-end server data center, by arbitrary equipment for surfing the net, by logon data center website, the remote monitoring to landslide and control can be realized, have conveniently, long-acting, the advantages such as real-time monitoring and unmanned.
A kind of Subgrade Landslide remote monitoring method that the application provides and device, is characterized in that comprising line array type capacitive transducer (1), number adopted and alarm controller (2), alarm equipment (3), remote data transmission device (4), solar battery power (5), the feature of described line array type capacitive transducer (1) is to comprise line array type capacitive transducer sensitive element (11), multichannel cycle detection switch (12), line array type capacitive transducer change-over circuit (13), A/D converter (14), described number adopts and the feature of alarm controller (2) is to adopt chip microcontroller, the feature of described alarm equipment (3) is to comprise stand by lamp (31) and phonetic alarm device (32), the feature of described remote data transmission device (4) is to comprise network control chip (41), router (42), remote data server (43), local computer (44), described solar battery power (5) is to described line array type capacitive transducer (1) and described number adopts and alarm controller (2) provides power supply, during installation, the line array type capacitive transducer sensitive element (11) of described line array type capacitive transducer (1) is inserted in the monitoring location of highway side roadbed, when roadbed has landslide tendency, on landslide, rupture surface place can cause micrometric displacement to misplace, cause described line array type capacitive transducer sensitive element (11), at rupture surface place, landslide, bending occurs, this place is made to have the measurement capacitance of the capacitance sensor unit of change in displacement to change, by the measurement capacitance of each capacitance sensor unit in line array type capacitive transducer sensitive element (11) described in described multichannel cycle detection switch (12) cycle detection, by described line array type capacitive transducer change-over circuit (13), capacitance is converted to magnitude of voltage, be transferred to described number through described A/D converter (14) to adopt and alarm controller (2), and then by described remote data transmission device (4), measurement data is uploaded in described remote data server (43) by internet, and user is by described local computer (44), by the Data web site opened in described remote data server (43) of surfing the Net, the data of real time inspection remote collection, and Long-distance Control can be carried out to the stand by lamp (31) in described alarm equipment (3) and phonetic alarm device (32), send alarm signal, vehicular traffic and pedestrian is reminded to take care.
Wherein, described local computer (44) can access internet, real-time display is stored in the measurement data of the described line array type capacitive transducer (1) in described remote data server (43), and adopt C language to programme, demonstrate the two-dimensional imaging of described line array type capacitive transducer (1) in real time, judge the change in displacement situation at each capacitance sensor unit place in described line array type capacitive transducer (1), landslide state is monitored; When the displacement deformation in described line array type capacitive transducer (1) exceeds setting threshold value, Long-distance Control is carried out by website, described stand by lamp (31) and described phonetic alarm device (32) is made to send light alarm, alarm sound and voice message, remind vehicular traffic and pedestrian to take care, hide landslide hazard in time.
Wherein, described line array type capacitive transducer sensitive element (11) length in described line array type capacitive transducer (1) can reach more than 2 meters, level or inclination are inserted in tested roadbed, described number adopts and alarm controller (2) and solar battery power (5) are all arranged near described line array type capacitive transducer (1), when roadbed has landslide trend, described line array type capacitive transducer sensitive element (11) can be caused in the change in displacement at rupture surface place, landslide, produce bending, make capacitance generation significant change compared with normal value of the capacitance sensor unit near the rupture surface of landslide.
Wherein, described line array type capacitive transducer sensitive element (11) is made up of multiple plane capacitance sensor unit, comprises plastic substrate (112), spring leaf (113), binding post (114), the electrode cable (115) of the metal electrode (111) of capacitance sensor unit, fixing described metal electrode (111); Under normal condition, when namely highway subgrade does not come down, each capacitance sensor unit of described line array type capacitive transducer sensitive element (11) is not out of shape, therefore the capacitance of each capacitance sensor unit is constant; When highway subgrade has landslide tendency, capacitance sensor unit in described line array type capacitive transducer sensitive element (11) near the rupture surface of landslide can be subjected to displacement dislocation and distortion, the capacitance of the capacitance sensor unit in this part region is changed, when capacitance variation amount exceedes the threshold value of setting in advance, then illustrate and have significantly landslide phenomenon to occur.
Wherein, total in described line array type capacitive transducer sensitive element (11)
nindividual capacitance sensor unit, is labeled as capacitance sensor unit in turn
arrive
; Arrange
nindividual solid-state relay switch, is designated as
arrive
; Described line array type capacitive transducer change-over circuit (13) is an operation amplifier circuit, and enlargement factor is that A, enlargement factor A are enough large; Using a capacitance sensor unit and a solid-state relay switch as one group, form n group altogether, be connected respectively in the backfeed loop of operation amplifier circuit, in the through path of operation amplifier circuit, connect a fixed reference electric capacity
, AC power
power supply is provided to operation amplifier circuit; During work, to be adopted by described number and alarm controller (2) n parallel output mouth line exports high level successively, control each folding of solid-state relay switch and closedown in turn, in each backfeed loop of cycle detection, the capacitance variation situation of each sensor capacitance unit, is converted to magnitude of voltage by metering circuit by the capacitance variations of each capacitance sensor unit
export, and do not occur bend compared with the output voltage values that be out of shape, difference is larger, then the intensity that comes down is larger, while can judge the particular location of bending generation, thus position, landslide and the intensity of roadbed can be reflected.
Wherein, output voltage
with the capacitance of capacitance sensor unit
one_to_one corresponding, computing formula is:
，
In formula,
refer to the capacitance of each capacitance sensor unit,
k=1,2,
, n.Formula is known thus, when the capacitance of each capacitance sensor unit changes, and output voltage values
with capacitance variations one_to_one corresponding.Output voltage values is measured by metering circuit
, do not occur compared with output voltage values that bending is out of shape with original, particular location and intensity that bending occurs can be analyzed, position and the intensity of Subgrade Landslide rupture surface can be reflected.
Wherein, described number adopts and alarm controller (2) adopts single-chip microcomputer, be connected with described network control chip (41) by spi bus, employing C language is programmed, and completes described number adopt and communication between alarm controller (2) and described network control chip (41) by the mode of simulation SPI sequential; Described network control chip (41) configures local network by fixing IP mode, then described router (42) is linked into by RJ-45 twisted-pair feeder, then by described router (42) accessing Internet network, then described number is adopted and alarm controller (2) can be linked on Ethernet; After described number adopts and alarm controller (2) is linked into Ethernet, namely gather the output voltage data of described line array type capacitive transducer (1) by mcu programming, then sensing data is submitted to the described remote data server (43) of far-end trustship by the mode of HTTP request; Described remote data server (43) can store data to MYSQL database according to server end setting, now, user can check data sheet by described local computer (44) or the equipment (mobile phone, notebook computer) can surfed the Net arbitrarily, through comparing with without normal measuring voltage value when coming down, judge deformation position and the intensity size of described line array type capacitive transducer (1); In addition, user also can open the remote control operation page, and adopt described number and opertaing device on alarm controller (2), namely described stand by lamp (31) and described phonetic alarm device (32) carry out remote control operation.
A kind of Subgrade Landslide remote monitoring method provided by the invention and device, exact position and the landslide intensity of landslide rupture surface can be obtained on the one hand in real time, on the other hand, by various equipment for surfing the net as mobile phone, computing machine etc., carry out remote monitoring and control whenever and wherever possible, solve the difficult problems such as the measurement under the measurement of many places and rugged surroundings well.Therefore, the solution adopting the application to propose, remote real time monitoring and the alarm that can realize Subgrade Landslide convenient, fast and efficiently control.
Accompanying drawing explanation
Fig. 1 is Subgrade Landslide remote supervision system structured flowchart.
Fig. 2 is system mounting location schematic diagram.
Fig. 3 is the structural drawing of described line array type capacitive transducer sensitive element (11) when misplacing without landslide.
Fig. 4 is the structural drawing of described line array type capacitive transducer sensitive element (11) when there being landslide dislocation.
Fig. 5 is line array type capacitive transducer measurement circuit design figure.
Fig. 6 is remote transmission and monitoring system block diagram.
Embodiment
Below in conjunction with accompanying drawing, patent Example of the present invention is described in further detail.
Fig. 1 is Subgrade Landslide remote supervision system structured flowchart.A kind of Subgrade Landslide remote monitoring method that the application proposes and device, is characterized in that comprising line array type capacitive transducer (1), number adopted and alarm controller (2), alarm equipment (3), remote data transmission device (4), solar battery power (5), the feature of described line array type capacitive transducer (1) is to comprise line array type capacitive transducer sensitive element (11), multichannel cycle detection switch (12), line array type capacitive transducer change-over circuit (13), A/D converter (14), described number adopts and the feature of alarm controller (2) is to adopt chip microcontroller, the feature of described alarm equipment (3) is to comprise stand by lamp (31) and phonetic alarm device (32), the feature of described remote data transmission device (4) is to comprise network control chip (41), router (42), remote data server (43), local computer (44), described solar battery power (5) is to described line array type capacitive transducer (1) and described number adopts and alarm controller (2) provides power supply, during installation, the line array type capacitive transducer sensitive element (11) of described line array type capacitive transducer (1) is inserted in the monitoring location of highway side roadbed, when roadbed has landslide tendency, on landslide, rupture surface place can cause micrometric displacement to misplace, cause described line array type capacitive transducer sensitive element (11), at rupture surface place, landslide, bending occurs, this place is made to have the measurement capacitance of the capacitance sensor unit of change in displacement to change, by the measurement capacitance of each capacitance sensor unit in line array type capacitive transducer sensitive element (11) described in described multichannel cycle detection switch (12) cycle detection, by described line array type capacitive transducer change-over circuit (13), capacitance is converted to magnitude of voltage, be transferred to described number through described A/D converter (14) to adopt and alarm controller (2), and then by described remote data transmission device (4), measurement data is uploaded in described remote data server (43) by internet, and user is by described local computer (44), by the Data web site opened in described remote data server (43) of surfing the Net, the data of real time inspection remote collection, and Long-distance Control can be carried out to the stand by lamp (31) in described alarm equipment (3) and phonetic alarm device (32), send alarm signal, vehicular traffic and pedestrian is reminded to take care.Described local computer (44) can access internet, real-time display is stored in the measurement data of the described line array type capacitive transducer (1) in described remote data server (43), and adopt C language to programme, demonstrate the two-dimensional imaging of described line array type capacitive transducer (1) in real time, judge the change in displacement situation at each capacitance sensor unit place in described line array type capacitive transducer (1), landslide state is monitored; When the displacement deformation in described line array type capacitive transducer (1) exceeds setting threshold value, Long-distance Control is carried out by website, described stand by lamp (31) and described phonetic alarm device (32) is made to send light alarm, alarm sound and voice message, remind vehicular traffic and pedestrian to take care, hide landslide hazard in time.
Fig. 2 is system mounting location schematic diagram.Wherein, described line array type capacitive transducer sensitive element (11) length in described line array type capacitive transducer (1) can reach more than 2 meters, level or inclination are inserted in tested roadbed, described number adopts and alarm controller (2) and solar battery power (5) are all arranged near described line array type capacitive transducer (1), when roadbed has landslide trend, described line array type capacitive transducer sensitive element (11) can be caused in the change in displacement at rupture surface place, landslide, produce bending, make capacitance generation significant change compared with normal value of the capacitance sensor unit near the rupture surface of landslide.
Fig. 3 is the structural drawing of described line array type capacitive transducer sensitive element (11) when misplacing without landslide.Described line array type capacitive transducer sensitive element (11) is made up of multiple plane capacitance sensor unit, comprises plastic substrate (112), spring leaf (113), binding post (114), the electrode cable (115) of the metal electrode (111) of capacitance sensor unit, fixing described metal electrode (111); Under normal condition, when namely highway subgrade does not come down, each capacitance sensor unit of described line array type capacitive transducer sensitive element (11) is not out of shape, therefore the capacitance of each capacitance sensor unit is constant.
Fig. 4 is the structural drawing of described line array type capacitive transducer sensitive element (11) when there being landslide dislocation.When highway subgrade has landslide tendency, capacitance sensor unit in described line array type capacitive transducer sensitive element (11) near the rupture surface of landslide can be subjected to displacement dislocation and distortion, the capacitance of the capacitance sensor unit in this part region is changed, when capacitance variation amount exceedes the threshold value of setting in advance, then illustrate and have significantly landslide phenomenon to occur.
Fig. 5 is line array type capacitive transducer measurement circuit design figure.If total in described line array type capacitive transducer sensitive element (11)
nindividual capacitance sensor unit, is labeled as capacitance sensor unit in turn
arrive
; Arrange
nindividual solid-state relay switch, is designated as
arrive
; Described line array type capacitive transducer change-over circuit (13) is an operation amplifier circuit, and enlargement factor is that A, enlargement factor A are enough large; Using a capacitance sensor unit and a solid-state relay switch as one group, form n group altogether, be connected respectively in the backfeed loop of operation amplifier circuit, in the through path of operation amplifier circuit, connect a fixed reference electric capacity
, AC power
power supply is provided to operation amplifier circuit; During work, to be adopted by described number and alarm controller (2) n parallel output mouth line exports high level successively, control each folding of solid-state relay switch and closedown in turn, in each backfeed loop of cycle detection, the capacitance variation situation of each sensor capacitance unit, is converted to magnitude of voltage by metering circuit by the capacitance variations of each capacitance sensor unit
export, and do not occur bend compared with the output voltage values that be out of shape, difference is larger, then the intensity that comes down is larger, while can judge the particular location of bending generation, thus position, landslide and the intensity of roadbed can be reflected.Wherein, output voltage
with the capacitance of capacitance sensor unit
one_to_one corresponding, computing formula is:
，
In formula,
refer to the capacitance of each capacitance sensor unit,
k=1,2,
, n.Formula is known thus, when the capacitance of each capacitance sensor unit changes, and output voltage values
with capacitance variations one_to_one corresponding.Output voltage values is measured by metering circuit
, do not occur compared with output voltage values that bending is out of shape with original, particular location and intensity that bending occurs can be analyzed, position and the intensity of Subgrade Landslide rupture surface can be reflected.
Fig. 6 is remote transmission and monitoring system block diagram.In Fig. 6, described number adopts and alarm controller (2) adopts single-chip microcomputer, be connected with described network control chip (41) by spi bus, employing C language is programmed, and completes described number adopt and communication between alarm controller (2) and described network control chip (41) by the mode of simulation SPI sequential; Described network control chip (41) configures local network by fixing IP mode, then described router (42) is linked into by RJ-45 twisted-pair feeder, then by described router (42) accessing Internet network, then described number is adopted and alarm controller (2) can be linked on Ethernet; After described number adopts and alarm controller (2) is linked into Ethernet, namely gather the output voltage data of described line array type capacitive transducer (1) by mcu programming, then sensing data is submitted to the described remote data server (43) of far-end trustship by the mode of HTTP request; Described remote data server (43) can store data to MYSQL database according to server end setting, now, user can check data sheet by described local computer (44) or the equipment (mobile phone, notebook computer) can surfed the Net arbitrarily, through comparing with without normal measuring voltage value when coming down, judge deformation position and the intensity size of described line array type capacitive transducer (1); In addition, user also can open the remote control operation page, and adopt described number and opertaing device on alarm controller (2), namely described stand by lamp (31) and described phonetic alarm device (32) carry out remote control operation.
Above to the description of the present invention and embodiment thereof, being not limited thereto, is only one of embodiments of the present invention shown in accompanying drawing.When not departing from the invention aim, designing the structure similar with this technical scheme or embodiment without creation, all belonging to scope.
Claims (6)
1. a Subgrade Landslide remote monitoring device, is characterized in that comprising line array type capacitive transducer (1), number is adopted and alarm controller (2), alarm equipment (3), remote data transmission device (4), solar battery power (5), the feature of described line array type capacitive transducer (1) is to comprise line array type capacitive transducer sensitive element (11), multichannel cycle detection switch (12), line array type capacitive transducer change-over circuit (13), A/D converter (14), described number adopts and the feature of alarm controller (2) is to adopt chip microcontroller, the feature of described alarm equipment (3) is to comprise stand by lamp (31) and phonetic alarm device (32), the feature of described remote data transmission device (4) is to comprise network control chip (41), router (42), remote data server (43), local computer (44), described solar battery power (5) is to described line array type capacitive transducer (1) and described number adopts and alarm controller (2) provides power supply, during installation, the described line array type capacitive transducer sensitive element (11) of described line array type capacitive transducer (1) is inserted in the monitoring location of highway side roadbed, when roadbed has landslide tendency, on landslide, rupture surface place can cause micrometric displacement to misplace, cause described line array type capacitive transducer sensitive element (11), at rupture surface place, landslide, bending distortion occurs, this place is made to have the measurement capacitance of the capacitance sensor unit of change in displacement to change, by the measurement capacitance of each capacitance sensor unit in line array type capacitive transducer sensitive element (11) described in described multichannel cycle detection switch (12) cycle detection, by described line array type capacitive transducer change-over circuit (13), capacitance is converted to magnitude of voltage to export, be transferred to described number through described A/D converter (14) to adopt and alarm controller (2), and then by described remote data transmission device (4), measurement data is uploaded in described remote data server (43) by internet, and user is by described local computer (44), by the Data web site logged in described remote data server (43) of surfing the Net, the data of real time inspection remote collection, and Long-distance Control can be carried out to the stand by lamp (31) in described alarm equipment (3) and phonetic alarm device (32), send pilot lamp and voice alarm signal, vehicular traffic and pedestrian is reminded to take care.
2. according to a kind of Subgrade Landslide remote monitoring device according to claim 1, it is characterized in that described local computer (44) can access internet, real-time display is stored in the measurement data of the described line array type capacitive transducer (1) in described remote data server (43), and adopt C language to programme, demonstrate the two-dimensional imaging of described line array type capacitive transducer (1) in real time, judge the change in displacement situation at each capacitance sensor unit place in described line array type capacitive transducer (1), landslide state is monitored; When the displacement deformation in described line array type capacitive transducer (1) exceeds setting threshold value, Long-distance Control is carried out by website, described stand by lamp (31) and described phonetic alarm device (32) is made to send light and phonic warning, remind vehicular traffic and pedestrian to take care, hide landslide hazard in time.
3. according to a kind of Subgrade Landslide remote monitoring device according to claim 1, it is characterized in that the length of the described line array type capacitive transducer sensitive element (11) in described line array type capacitive transducer (1) can reach more than 2 meters, level or inclination are inserted in tested roadbed, described number adopts and alarm controller (2) and solar battery power (5) are all arranged near described line array type capacitive transducer (1), when roadbed has landslide trend, described line array type capacitive transducer sensitive element (11) can be caused to have change in displacement at rupture surface place, landslide, produce bending distortion, make capacitance generation significant change compared with normal value of the capacitance sensor unit near the rupture surface of landslide.
4. according to a kind of Subgrade Landslide remote monitoring device according to claim 1, it is characterized in that described line array type capacitive transducer sensitive element (11) is made up of multiple plane capacitance sensor unit, comprise plastic substrate (112), spring leaf (113), binding post (114), the electrode cable (115) of the metal electrode (111) of capacitance sensor unit, fixing described metal electrode (111); Under normal condition, when namely highway subgrade does not come down, each capacitance sensor unit of described line array type capacitive transducer sensitive element (11) is not out of shape, therefore the capacitance of each capacitance sensor unit is constant; When highway subgrade has landslide tendency, capacitance sensor unit in described line array type capacitive transducer sensitive element (11) near the rupture surface of landslide can be subjected to displacement dislocation and distortion, the capacitance of the capacitance sensor unit in this part region is changed, when capacitance variation amount exceedes the threshold value of setting in advance, illustrate that significantly landslide phenomenon occurs.
5., according to a kind of Subgrade Landslide remote monitoring device according to claim 1, it is characterized in that in described line array type capacitive transducer sensitive element (11) total
nindividual capacitance sensor unit, is labeled as capacitance sensor unit in turn
c 1arrive
c n ; Arrange
nindividual solid-state relay switch, is designated as
k 1arrive
k n ; Described line array type capacitive transducer change-over circuit (13) is an operation amplifier circuit, and enlargement factor is that A, enlargement factor A are enough large; Using a capacitance sensor unit and a solid-state relay switch as one group, formed altogether
ngroup, is connected respectively in the backfeed loop of operation amplifier circuit, in the through path of operation amplifier circuit, connects a fixed reference electric capacity
c r , AC power
u i power supply is provided to operation amplifier circuit; During work, to be adopted by described number and alarm controller (2)
nindividual parallel output mouth line exports high level successively, control folding and the closedown successively of each solid-state relay switch, in each backfeed loop of cycle detection, the capacitance variation situation of each sensor capacitance unit, is converted to magnitude of voltage by metering circuit by the capacitance variations of each capacitance sensor unit
u o export, and do not occur bend compared with the output voltage values that be out of shape, difference is larger, then the intensity that comes down is larger, while can judge the particular location of bending generation, thus position and the intensity of Subgrade Landslide can be reflected.
6. according to a kind of Subgrade Landslide remote monitoring device according to claim 1, it is characterized in that described number is adopted and alarm controller (2) adopts single-chip microcomputer, be connected with described network control chip (41) by spi bus, employing C language is programmed, and realizes described number adopt and communication between alarm controller (2) and described network control chip (41) by the mode of simulation SPI sequential; Described network control chip (41) configures local network by fixing IP mode, described router (42) is linked into by RJ-45 twisted-pair feeder, by described router (42) accessing Internet network, then described number is adopted and alarm controller (2) can be linked on Ethernet; After described number adopts and alarm controller (2) is linked into Ethernet, namely gather the output voltage data of described line array type capacitive transducer (1) by single-chip microcomputer, then sensing data is submitted to the described remote data server (43) of far-end trustship by the mode of HTTP request; Described remote data server (43) can store data to MYSQL database according to server end setting, now, user can check data sheet by described local computer (44) or the equipment can surfed the Net arbitrarily, through comparing with without normal measurement output voltage values when coming down, judge deformation position and the intensity size of described line array type capacitive transducer (1); In addition, user also can open the remote control operation page, and adopt described number and opertaing device on alarm controller (2), namely described stand by lamp (31) and described phonetic alarm device (32) carry out remote control operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310073596.3A CN103177532B (en) | 2013-03-08 | 2013-03-08 | A kind of Subgrade Landslide remote monitoring method and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310073596.3A CN103177532B (en) | 2013-03-08 | 2013-03-08 | A kind of Subgrade Landslide remote monitoring method and device |
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| Publication Number | Publication Date |
|---|---|
| CN103177532A CN103177532A (en) | 2013-06-26 |
| CN103177532B true CN103177532B (en) | 2015-08-26 |
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| CN108550242B (en) * | 2018-06-28 | 2023-10-13 | 桂林理工大学 | Practical landslide early warning system |
| CN109724558A (en) * | 2019-01-03 | 2019-05-07 | 浙江华咨结构设计事务所有限公司 | A kind of static strain analysis system |
| CN110080252B (en) * | 2019-04-30 | 2020-11-17 | 招商局重庆公路工程检测中心有限公司 | Soil slope instability risk sensing system based on active source electric field variation law |
| CN110804919B (en) * | 2019-11-19 | 2021-04-27 | 兰州交通大学 | Roadbed structure for crossing active fault |
| CN112129214A (en) * | 2020-09-06 | 2020-12-25 | 苏州浪潮智能科技有限公司 | Circuit and method for real-time detection of case bending |
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