CN103177532A - Remote roadbed landslide monitoring method and remote roadbed landslide monitoring device - Google Patents

Remote roadbed landslide monitoring method and remote roadbed landslide monitoring device Download PDF

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Publication number
CN103177532A
CN103177532A CN2013100735963A CN201310073596A CN103177532A CN 103177532 A CN103177532 A CN 103177532A CN 2013100735963 A CN2013100735963 A CN 2013100735963A CN 201310073596 A CN201310073596 A CN 201310073596A CN 103177532 A CN103177532 A CN 103177532A
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array type
landslide
line array
type capacitive
capacitive transducer
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CN2013100735963A
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CN103177532B (en
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王建军
王守谦
李冠君
林晓晓
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Shandong University of Technology
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Shandong University of Technology
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Abstract

The invention discloses a remote roadbed landslide monitoring method and a remote roadbed landslide monitoring device. A linear array type capacitive sensor is designed to perform real-time detection to landslide fractured surface positions, measurement data of the linear array type capacitive sensor are acquired in real time on the basis of a single chip microcomputer, a network control chip is utilized for accessing the single chip microcomputer to the Internet, and a network communication protocol between the single chip microcomputer and a remote data server is established, so that the measurement data acquired by the single chip microcomputer are transmitted to the remote data server for data storage in real time through a data center network. By the aid of an Internet surfing device, a user logs in the data center website to access the data in the remote data server to obtain the landslide fractured surface positions so as to achieve remote real-time monitoring of roadbed landslide situations, and alarming control can be performed to a remote alarm device through the website. By the method and the device, remote monitoring of the roadbed landslide positions and intensity can be achieved conveniently, rapidly and efficiently, and measurement problems of multi-site measurement and under severe environments can be well solved.

Description

A kind of Subgrade Landslide remote monitoring method and device
Technical field
The present invention relates to remote monitoring and the control technology of a kind of line array type capacitance displacement sensor design and employing single-chip microcomputer.
Background technology
Highway subgrade landslide causes highway pavement to cave in and the Frequent Accidents of the car crash that causes, and is therefore, extremely important to Real-Time Monitoring and the alarm of highway subgrade landslide disaster.
Present landslide monitoring has two kinds of large types, and a class is the monitoring to the absolute displacement of earth's surface landslide, and another kind of is monitoring to landslide depth displacement.
For the monitoring method of first kind earth's surface landslide absolute displacement, because the landslide, earth's surface the most significantly is characterized as surface sliding, need monitoring be slip and the feature (as slide displacement size and speed) thereof of surperficial soil property and when sliding ground dynamically be out of shape.The earth's surface deformation measurement method mainly contains at present: geodesic method, GPS mensuration, earth's surface oblique photogrammetry and surface cracks observation etc.
(1) geodesic method: the liptinite outside coming down is set up a series of reference points, sets up a plurality of monitoring points in sliding mass, and wherein reference point is fixed point, and the monitoring point is the motor point.By observing and comparing the monitoring point coordinate and determine the motion state of monitoring point with the variation of the locus of reference point.The instrument that traditional geodetic surveying is used mainly contains: transit, spirit-leveling instrument and stadimeter etc.Its shortcoming is to need artificial field operation, data acquisition inconvenience, unsuitable long-term continuous coverage etc.
(2) GPS method: GPS (Global Positioning System, GPS) can provide continuous, real-time, the high-precision location of global range, GPS receiver user, computing machine, input and output control display equipment can accurately be located ground measurement point.Shortcoming is that GPS receiver user present position will have abundant moonscope number and enough strong satellite radio signal transmissions, and in some open-air areas, can not satisfy well this reception semaphore request.
(3) earth's surface oblique photogrammetry: be mainly variation and the vergence direction for monitoring sliding mass surficial inclination.At present common instrument has U.S. Sinco disc type inclinator, sensitivity 8 ", range ± 30 ° are applicable to the monitoring of tilt variation when larger.
(4) surface cracks observation: surface cracks observation common instrument has crack gauge, convergence gauge, steel wire displacement meter and dislocation meter.Also can at both sides, crack bidding point and peg, measure with steel ruler and vernier caliper.The ground fissure monitoring instrument is generally across layouts such as crack, tomography, interlayer, aspects.
Landslide depth displacement monitoring rate surface displacement observation can obtain the come down information of state of deeper reflection.Internal displacement monitoring can judge rupture surface position, landslide, main sliding direction of landslide, landslide displacement from deep to shallow, the information such as variation of 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.The borehole inclinometer monitoring is to measure piecemeal at regular intervals the slope of boring with inclinator, thereby obtaining the displacement of Rock And Soil inner horizontal reaches over time, its principle is to be affected by gravity according to pendulum, the arc angle of mensuration take vertical line as benchmark changes, and is applicable to slowly, the at the uniform velocity monitoring of the sliding mass of deformation stage.When distortion aggravation or local accident generation, because deflection is large, the extruding inclinometer pipe sharply is out of shape can't scrap by causing monitoring gauge head.
(2) inner relative displacement monitoring: the landslide is when distortion, and the relative position of the inner point-to-point transmission of gliding mass can change, and can install instruments and measure relative displacement or the relative settlement of point-to-point transmission in the body of slope.Generally select the relatively small point of distortion as reference point beyond the Landslide Deformation scope, it is significantly local that another point is positioned at the slope body deformability.The general multipoint displacement meter that adopts of relative displacement observation can be measured the slope body along the change in displacement of drilling axis.Multipoint displacement meter can be in same boring arranges 3~6 of the measuring points of different depth along its length direction, 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 anchor stress meter of anchor stress, 3~5 measuring points of the every general layout of anchor pole can be understood stress, consolidation effect and the stress of anchor pole along the regularity of distribution of anchor pole.Monitoring to retaining structure and gliding mass contact can be selected pressure gauge or pressure cell, is generally to be arranged on supporting construction with the position of gliding mass contact by certain degree of depth in face of the gliding mass glide direction.
As seen above, adopt inner relative displacement monitoring to highway subgrade landslide method, advantage preferably to be arranged, the exact position of rupture surface and the measurement of the intensity that comes down but the line array type sensor that also not have at present to be fit to comes down.In addition, Subgrade Landslide is the process of long-term accumulation, the people can not be always in the open air the scene stare at, and present data transmission gathers mostly at the scene, is unfavorable for long-range and long-term monitoring.In the measuring technique of existing landslide, also there are a lot of difficult problems in the monitoring technology under rugged surroundings, many Regional Distribution formula data acquisition technology, and the aspect such as remote measurement and control technology, are not solved well.Also lack detailed description and the report that highway subgrade is come down and carries out remote monitoring and control alarm about by remote internet in existing document.
Summary of the invention
for unmanned and the defective by the 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 that purpose is, design a kind of line array type capacitive transducer, rupture surface position, landslide and intensity are accurately measured, Monitoring Data is by the single-chip microcomputer collection in worksite, and by the network control chip accessing Internet, by the network communication protocol between establishment single-chip microcomputer and server, the measurement data real-time storage that will be collected by single-chip microcomputer is to far-end server data center, by equipment for surfing the net arbitrarily, by the logon data center website, can realize remote monitoring and control to the landslide, have conveniently, long-acting, the advantage such as Real Time Monitoring and unmanned.
a kind of Subgrade Landslide remote monitoring method and device that the application provides is characterized in that comprising that line array type capacitive transducer (1), number adopt and alarm controller (2), alarm equipment (3), remote data transmission device (4), solar battery power (5), described line array type capacitive transducer (1) is characterised in that and comprises 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 alarm controller (2) is characterised in that the employing chip microcontroller, described alarm equipment (3) is characterised in that and comprises stand by lamp (31) and phonetic alarm device (32), described remote data transmission device (4) is characterised in that and comprises network control chip (41), router (42), remote data server (43), local computer (44), described solar battery power (5) gives 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 the landslide tendency, can cause the micrometric displacement dislocation at rupture surface place, landslide, cause described line array type capacitive transducer sensitive element (11) at rupture surface place, landslide, bending to occur, make this place have the measurement capacitance of the capacitance sensor unit of change in displacement to change, measurement capacitance by each capacitance sensor unit in described multichannel cycle detection switch (12) cycle detection described line array type capacitive transducer sensitive element (11), by described line array type capacitive transducer change-over circuit (13), capacitance is converted to magnitude of voltage, be transferred to through described A/D converter (14) that described number is adopted and alarm controller (2), and then by described remote data transmission device (4), measurement data is uploaded in described remote data server (43) by the internet, and the user can pass through described local computer (44), open Data web site in described remote data server (43) by online, the data of real time inspection remote collection, and can carry out Long-distance Control to the stand by lamp (31) in described alarm equipment (3) and phonetic alarm device (32), send alarm signal, remind vehicular traffic and pedestrian to take care.
Wherein, described local computer (44) can be accessed the internet, show in real time the measurement data that is stored in the described line array type capacitive transducer (1) in described remote data server (43), and employing C Programming with Pascal Language, demonstrate in real time the two-dimensional imaging of described line array type capacitive transducer (1), judge the change in displacement situation at each capacitance sensor unit place in described line array type capacitive transducer (1), the landslide state is monitored; When the displacement deformation in described line array type capacitive transducer (1) exceeds setting threshold, can carry out Long-distance Control by the website, make described stand by lamp (31) and described phonetic alarm device (32) send light alarm, alarm sound and voice suggestion, remind vehicular traffic and pedestrian to take care, in time hide landslide hazard.
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) all are arranged near described line array type capacitive transducer (1), when roadbed has landslide trend, can cause described line array type capacitive transducer sensitive element (11) in the change in displacement at rupture surface place, landslide, produce bending, make near the capacitance of the capacitance sensor unit the rupture surface of landslide compare the generation significant change with normal value.
Wherein, described line array type capacitive transducer sensitive element (11) is comprised of a plurality of plane capacitance sensors unit, comprises the metal electrode (111) of capacitance sensor unit, plastic substrate (112), spring leaf (113), binding post (114), the electrode cable (115) of fixing described metal electrode (111); Under normal condition, when namely highway subgrade did not come down, each capacitance sensor unit of described line array type capacitive transducer sensitive element (11) is distortion not, therefore the capacitance of each capacitance sensor unit is constant; When highway subgrade has the landslide tendency, near in described line array type capacitive transducer sensitive element (11) rupture surface of landslide capacitance sensor unit can be subjected to displacement dislocation and distortion, the capacitance of this part regional capacitance sensor unit is changed, when the capacitance variation amount surpassed the threshold value of setting in advance, explanation had obvious 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 A, and it is enough large that enlargement factor A wants; A capacitance sensor unit and a solid-state relay switch as one group, are formed the 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 Provide power supply to operation amplifier circuit; During work, adopted and n parallel output mouth line of alarm controller (2) exported high level successively by described number, control in turn each solid-state relay switch folding and close, the capacitance variation situation of each sensor capacitance unit in each backfeed loop of cycle detection is converted to magnitude of voltage by metering circuit with the capacitance variations of each capacitance sensor unit Output is compared with the output voltage values that the bending distortion does not occur, and difference is larger, and the intensity that comes down is larger, can judge the particular location that bending occurs simultaneously, thereby can reflect position, landslide and the intensity of roadbed.
Wherein, output voltage Capacitance with capacitance sensor unit Corresponding one by one, computing formula is:
In formula, The capacitance that refers to each capacitance sensor unit, k=1,2, , nThus formula as can be known, when the capacitance of each capacitance sensor unit changes, output voltage values Corresponding one by one with capacitance variations.Can measure output voltage values by metering circuit , compare with the original output voltage values that the bending distortion does not occur, can analyze particular location and intensity that bending occurs, can reflect position and the intensity of Subgrade Landslide rupture surface.
Wherein, described number adopts and alarm controller (2) adopts single-chip microcomputer, be connected with described network control chip (41) by spi bus, adopt the C Programming with Pascal Language, by the mode of simulation SPI sequential complete that described number is adopted and alarm controller (2) and described network control chip (41) between communicate by letter; Described network control chip (41) configures local network by fixing IP mode, then be linked into described router (42) by the RJ-45 twisted-pair feeder, then with described router (42) accessing Internet network, 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, can gather by mcu programming the output voltage data of described line array type capacitive transducer (1), the mode of then sensing data being asked by HTTP is submitted to the described remote data server (43) of far-end trustship; Described remote data server (43) can be set the storage data to the MYSQL database according to server end, at this moment, the user can check data sheet by described local computer (44) or the equipment that can surf the Net arbitrarily (mobile phone, notebook computer), normal measuring voltage value through with the nothing landslide time is relatively judged deformation position and the intensity size of described line array type capacitive transducer (1); In addition, the user also can open the remote control operation page, to described number adopt and alarm controller (2) on opertaing device, 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, can obtain in real time on the one hand the come down exact position of rupture surface and the intensity that comes down, on the other hand, can pass through various equipments for surfing the net such as mobile phone, computing machine etc., carry out remote monitoring and control whenever and wherever possible, solved well the difficult problems such as measurement under many ground point measurement and rugged surroundings.Therefore, the solution that adopts the application to propose can realize remote real time monitoring and the alarm control of Subgrade Landslide convenient, fast and efficiently.
Description of drawings
Fig. 1 is Subgrade Landslide remote supervision system structured flowchart.
Fig. 2 is system's installation site schematic diagram.
Fig. 3 is the structural drawing of described line array type capacitive transducer sensitive element (11) without the landslide dislocation time.
Fig. 4 is the structural drawing of described line array type capacitive transducer sensitive element (11) when the landslide dislocation is arranged.
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 working 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 and device that the application proposes is characterized in that comprising line array type capacitive transducer (1), number adopts and alarm controller (2), alarm equipment (3), remote data transmission device (4), solar battery power (5), described line array type capacitive transducer (1) is characterised in that and comprises 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 alarm controller (2) is characterised in that the employing chip microcontroller, described alarm equipment (3) is characterised in that and comprises stand by lamp (31) and phonetic alarm device (32), described remote data transmission device (4) is characterised in that and comprises network control chip (41), router (42), remote data server (43), local computer (44), described solar battery power (5) gives 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 the landslide tendency, can cause the micrometric displacement dislocation at rupture surface place, landslide, cause described line array type capacitive transducer sensitive element (11) at rupture surface place, landslide, bending to occur, make this place have the measurement capacitance of the capacitance sensor unit of change in displacement to change, measurement capacitance by each capacitance sensor unit in described multichannel cycle detection switch (12) cycle detection described line array type capacitive transducer sensitive element (11), by described line array type capacitive transducer change-over circuit (13), capacitance is converted to magnitude of voltage, be transferred to through described A/D converter (14) that described number is adopted and alarm controller (2), and then by described remote data transmission device (4), measurement data is uploaded in described remote data server (43) by the internet, and the user can pass through described local computer (44), open Data web site in described remote data server (43) by online, the data of real time inspection remote collection, and can carry out Long-distance Control to the stand by lamp (31) in described alarm equipment (3) and phonetic alarm device (32), send alarm signal, remind vehicular traffic and pedestrian to take care.Described local computer (44) can be accessed the internet, show in real time the measurement data that is stored in the described line array type capacitive transducer (1) in described remote data server (43), and employing C Programming with Pascal Language, demonstrate in real time the two-dimensional imaging of described line array type capacitive transducer (1), judge the change in displacement situation at each capacitance sensor unit place in described line array type capacitive transducer (1), the landslide state is monitored; When the displacement deformation in described line array type capacitive transducer (1) exceeds setting threshold, can carry out Long-distance Control by the website, make described stand by lamp (31) and described phonetic alarm device (32) send light alarm, alarm sound and voice suggestion, remind vehicular traffic and pedestrian to take care, in time hide landslide hazard.
Fig. 2 is system's installation site 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) all are arranged near described line array type capacitive transducer (1), when roadbed has landslide trend, can cause described line array type capacitive transducer sensitive element (11) in the change in displacement at rupture surface place, landslide, produce bending, make near the capacitance of the capacitance sensor unit the rupture surface of landslide compare the generation significant change with normal value.
Fig. 3 is the structural drawing of described line array type capacitive transducer sensitive element (11) without the landslide dislocation time.Described line array type capacitive transducer sensitive element (11) is comprised of a plurality of plane capacitance sensors unit, comprises the metal electrode (111) of capacitance sensor unit, plastic substrate (112), spring leaf (113), binding post (114), the electrode cable (115) of fixing described metal electrode (111); Under normal condition, when namely highway subgrade did not come down, each capacitance sensor unit of described line array type capacitive transducer sensitive element (11) is distortion not, 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 the landslide dislocation is arranged.When highway subgrade has the landslide tendency, near in described line array type capacitive transducer sensitive element (11) rupture surface of landslide capacitance sensor unit can be subjected to displacement dislocation and distortion, the capacitance of this part regional capacitance sensor unit is changed, when the capacitance variation amount surpassed the threshold value of setting in advance, explanation had obvious 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 A, and it is enough large that enlargement factor A wants; A capacitance sensor unit and a solid-state relay switch as one group, are formed the 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 Provide power supply to operation amplifier circuit; During work, adopted and n parallel output mouth line of alarm controller (2) exported high level successively by described number, control in turn each solid-state relay switch folding and close, the capacitance variation situation of each sensor capacitance unit in each backfeed loop of cycle detection is converted to magnitude of voltage by metering circuit with the capacitance variations of each capacitance sensor unit Output is compared with the output voltage values that the bending distortion does not occur, and difference is larger, and the intensity that comes down is larger, can judge the particular location that bending occurs simultaneously, thereby can reflect position, landslide and the intensity of roadbed.Wherein, output voltage Capacitance with capacitance sensor unit Corresponding one by one, computing formula is:
In formula, The capacitance that refers to each capacitance sensor unit, k=1,2, , nThus formula as can be known, when the capacitance of each capacitance sensor unit changes, output voltage values Corresponding one by one with capacitance variations.Can measure output voltage values by metering circuit , compare with the original output voltage values that the bending distortion does not occur, can analyze particular location and intensity that bending occurs, can reflect position and the intensity of Subgrade Landslide rupture surface.
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, adopt the C Programming with Pascal Language, by the mode of simulation SPI sequential complete that described number is adopted and alarm controller (2) and described network control chip (41) between communicate by letter; Described network control chip (41) configures local network by fixing IP mode, then be linked into described router (42) by the RJ-45 twisted-pair feeder, then with described router (42) accessing Internet network, 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, can gather by mcu programming the output voltage data of described line array type capacitive transducer (1), the mode of then sensing data being asked by HTTP is submitted to the described remote data server (43) of far-end trustship; Described remote data server (43) can be set the storage data to the MYSQL database according to server end, at this moment, the user can check data sheet by described local computer (44) or the equipment that can surf the Net arbitrarily (mobile phone, notebook computer), normal measuring voltage value through with the nothing landslide time is relatively judged deformation position and the intensity size of described line array type capacitive transducer (1); In addition, the user also can open the remote control operation page, to described number adopt and alarm controller (2) on opertaing device, namely described stand by lamp (31) and described phonetic alarm device (32) carry out remote control operation.
Above description to the present invention and embodiment thereof is not limited to this, is only one of embodiments of the present invention shown in accompanying drawing.In the situation that do not break away from the invention aim, without designing and the similar structure of this technical scheme or embodiment, all belong to protection domain of the present invention with creating.

Claims (6)

1. Subgrade Landslide remote monitoring device is characterized in that comprising line array type capacitive transducer (1), number adopts and alarm controller (2), alarm equipment (3), remote data transmission device (4), solar battery power (5), described line array type capacitive transducer (1) is characterised in that and comprises 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 alarm controller (2) is characterised in that the employing chip microcontroller, described alarm equipment (3) is characterised in that and comprises stand by lamp (31) and phonetic alarm device (32), described remote data transmission device (4) is characterised in that and comprises network control chip (41), router (42), remote data server (43), local computer (44), described solar battery power (5) gives 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 the landslide tendency, can cause the micrometric displacement dislocation at rupture surface place, landslide, cause described line array type capacitive transducer sensitive element (11) at rupture surface place, landslide, the bending distortion to occur, make this place have the measurement capacitance of the capacitance sensor unit of change in displacement to change, measurement capacitance by each capacitance sensor unit in described multichannel cycle detection switch (12) cycle detection described line array type capacitive transducer sensitive element (11), by described line array type capacitive transducer change-over circuit (13), capacitance is converted to magnitude of voltage output, be transferred to through described A/D converter (14) that described number is adopted and alarm controller (2), and then by described remote data transmission device (4), measurement data is uploaded in described remote data server (43) by the internet, and the user can pass through described local computer (44), log in Data web site in described remote data server (43) by online, the data of real time inspection remote collection, and can carry out Long-distance Control to the stand by lamp (31) in described alarm equipment (3) and phonetic alarm device (32), send pilot lamp and voice alarm signal, remind vehicular traffic and pedestrian to take care.
2. according to a kind of Subgrade Landslide remote monitoring device claimed in claim 1, it is characterized in that described local computer (44) can access the internet, show in real time the measurement data that is stored in the described line array type capacitive transducer (1) in described remote data server (43), and employing C Programming with Pascal Language, demonstrate in real time the two-dimensional imaging of described line array type capacitive transducer (1), judge the change in displacement situation at each capacitance sensor unit place in described line array type capacitive transducer (1), the landslide state is monitored; When the displacement deformation in described line array type capacitive transducer (1) exceeds setting threshold, can carry out Long-distance Control by the website, make described stand by lamp (31) and described phonetic alarm device (32) send light and phonic warning, remind vehicular traffic and pedestrian to take care, in time hide landslide hazard.
3. according to a kind of Subgrade Landslide remote monitoring device claimed in claim 1, the length that it is characterized in that 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) all are arranged near described line array type capacitive transducer (1), when roadbed has landslide trend, can cause described line array type capacitive transducer sensitive element (11) at rupture surface place, landslide, change in displacement to be arranged, produce the bending distortion, make near the capacitance of the capacitance sensor unit the rupture surface of landslide compare the generation significant change with normal value.
4. according to a kind of Subgrade Landslide remote monitoring device claimed in claim 1, it is characterized in that described line array type capacitive transducer sensitive element (11) is comprised of a plurality of plane capacitance sensors unit, comprise the metal electrode (111) of capacitance sensor unit, plastic substrate (112), spring leaf (113), binding post (114), the electrode cable (115) of fixing described metal electrode (111); Under normal condition, when namely highway subgrade did not come down, each capacitance sensor unit of described line array type capacitive transducer sensitive element (11) is distortion not, therefore the capacitance of each capacitance sensor unit is constant; When highway subgrade has the landslide tendency, near in described line array type capacitive transducer sensitive element (11) rupture surface of landslide capacitance sensor unit can be subjected to displacement dislocation and distortion, the capacitance of this part regional capacitance sensor unit is changed, when the capacitance variation amount surpasses the threshold value of setting in advance, illustrated that obvious landslide phenomenon occurs.
5. according to a kind of Subgrade Landslide remote monitoring device claimed in 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 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 A, and it is enough large that enlargement factor A wants; A capacitance sensor unit and a solid-state relay switch as one group, are 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 , AC power Provide power supply to operation amplifier circuit; During work, adopted and alarm controller (2) by described number nIndividual parallel output mouth line is exported high level successively, control the folding and closing successively of each solid-state relay switch, the capacitance variation situation of each sensor capacitance unit in each backfeed loop of cycle detection is converted to magnitude of voltage by metering circuit with the capacitance variations of each capacitance sensor unit Output is compared with the output voltage values that the bending distortion does not occur, and difference is larger, and the intensity that comes down is larger, can judge the particular location that bending occurs simultaneously, thereby can reflect position and the intensity of Subgrade Landslide.
6. according to a kind of Subgrade Landslide remote monitoring device claimed in 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, adopt the C Programming with Pascal Language, the mode by simulation SPI sequential realize that described number is adopted and alarm controller (2) and described network control chip (41) between communicate by letter; Described network control chip (41) configures local network by fixing IP mode, be linked into described router (42) by the RJ-45 twisted-pair feeder, with described router (42) accessing Internet network, 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, can gather by single-chip microcomputer the output voltage data of described line array type capacitive transducer (1), the mode of then sensing data being asked by HTTP is submitted to the described remote data server (43) of far-end trustship; Described remote data server (43) can be set the storage data to the MYSQL database according to server end, at this moment, the user can check data sheet by described local computer (44) or the equipment that can surf the Net arbitrarily (mobile phone, notebook computer), normal measurement output voltage values through with the nothing landslide time is relatively judged deformation position and the intensity size of described line array type capacitive transducer (1); In addition, the user also can open the remote control operation page, to described number adopt and alarm controller (2) on opertaing device, namely described stand by lamp (31) and described phonetic alarm device (32) carry out remote control operation.
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