CN207066383U - A kind of geology monitors displacement meter - Google Patents
A kind of geology monitors displacement meter Download PDFInfo
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- CN207066383U CN207066383U CN201720714978.3U CN201720714978U CN207066383U CN 207066383 U CN207066383 U CN 207066383U CN 201720714978 U CN201720714978 U CN 201720714978U CN 207066383 U CN207066383 U CN 207066383U
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Abstract
A kind of geology monitors displacement meter, including control section and multiple sensing sections, and the control section and sensing section are connected by universal joint, and control module is provided with the control section, is provided with sensing module in the sensing section, sensing module electrically connects with control module；The utility model provides a kind of geology monitoring displacement meter, attitude algorithm will be carried out after the data prediction collected and measurement Error Compensation by processor, and obtained orientation attitude information is sent in the application program at PC ends by serial ports the model of displacement is shown, different geological stratifications can be monitored.This other electronic compass has good performance using sensor chip leading in the industry for measurement accuracy, can meet most of measurement task required for precision.
Description
Technical field
A kind of geologic shifts monitoring device is the utility model is related to, particularly a kind of geology monitoring displacement meter.
Background technology
China causes geological disaster to occur frequent, Geological Hazards are such as due to the influence of the more water in more mountains and climatic factor
Earthquake disaster, avalanche, landslide, mud-stone flow disaster, land degradation disaster and ground deformation and mine working disaster and by above-mentioned
Artificial facility such as bridge caused by matter disaster, the disaster such as road and rail and dam landslide are the securities of the lives and property of the people
Huge threat, in order to should be big to disaster probability of happening to these geological disasters place carry out geology monitoring be very necessary
's.
It should meet monitoring accuracy for the monitoring instrument of the geological disasters such as unstable landslide, avalanche and mud-rock flow and can
By property requirement, on the adaptive faculty of environment, resistance to corrosion, by temperature, ice melt, wind, water, thunder and lightning, vibration etc. influence it is small.It can keep
The long-time stability and reliability of instrument and transmission line, failure is small, and is easy to safeguard and changes.
For landslide, for the avalanche geology monitoring related to mud-rock flow, traditional displacement monitoring mode concentrates on top layer
Displacement monitoring, such as GPS deformation monitorings, laser ranging monitoring, drag-line displacement monitoring, above-mentioned top layer displacement monitoring sensor main will
It is installed on monitoring geology top layer.Monitoring accuracy is caused to be greatly reduced because top layer monitoring is easily disturbed；And when top layer occurs greatly
When amplitude comes down, actual risk of landslip is very high, and the possibility for occurring coming down within a very short time is very high, the early warning of monitoring
Time is very short.So early warning effectively could be carried out to disaster using deep soil movement monitoring.Prior art also has to deep displacement
The method measured, the deep deformation of soil layer is such as monitored using sliding inclinometer, sliding inclinometer is in drilling
Sinking inclinometer pipe, using pulling sliding inclinometer fixed length one-point measurement bore inner tilt displacement above and below inclinometer pipe guide rail,
So as to grasp the deformation situation of bore inner.The defects of this scheme is in the case where geology changes greatly, and often makes brill
Inclinometer pipe bad break or deformation in hole, such sensor can not be deep into drilling and measure.
For common geological disaster as come down monitoring frequency, under normal circumstances generally 15 days once, it is more stable
Can be monthly；Need to encrypt in the flood season of monitoring, rainy season, forecast period, prevention and cure project construction time etc., it is preferably once a day or several small
Shi Yici is until continuous tracking and monitoring.Under normal circumstances, monitoring frequency is not high, and common monitoring means tends to meet to require,
But in the case where some are relatively more extreme, traditional measuring method can not be monitored to the real-time displacement situation of measured object,
Every time need measurement when generally require special messenger's carrying device go measurement then result is fed back.Such method is in bad environments
With pendulous frequency frequently in the case of, it is many unfavorable to be brought to survey crew.
Measurement for some surface displacement amounts, such as dam, bridge, road and rail deformational displacement monitoring, by naked eyes or
Some macroscopical measuring methods of person tend not to reach good monitoring effect, on some such as dam surfaces, bridge bottom not
The disposable installation one in place that suitable manual working or dangerous higher occasion monitor to needs can exempt to tie up for a long time
The sensor of the monitoring displacement of shield is also necessary.
In summary, research and develop the different depth Rock And Soil current state inside a kind of energy real-time capture monitoring slip mass, break
Bad state, predict that effect of the equipment of slip mass future developing trend for China's prevention of geological disaster is especially huge.Should
Equipment not only reaches demand in precision, also can in the Deep Rock soil layer of environment rather harsh long-term stable operation and from dimension
Shield, this has special meaning in the case of China is current, and such monitoring device will be China's deep soil movement monitoring development
Inexorable trend.In addition, some need to monitor a certain linear object such as girder steel or by measure multiple linear datas so as to
The occasion for the displacement variable that must be appeared, such as apply the monitoring of the deformation monitoring and deflection of bridge span on big dam facing, such prison
Measurement equipment also has some ample scope for abilities, so exploitation array geology monitoring displacement meter is necessary.
The content of the invention
Technical problem to be solved in the utility model is to provide a kind of geology monitoring displacement meter, simple in construction, small volume,
It is low in energy consumption, different geological stratifications can be monitored.
In order to solve the above technical problems, technical scheme is used by the utility model：A kind of geology monitors displacement meter, bag
Control section and multiple sensing sections are included, the control section and sensing section are connected by universal joint, and control mould is provided with the control section
Block, described sense in section are provided with sensing module, and sensing module electrically connects with control module；
The control module selects voltage generation circuit including single-chip microcomputer, RS485 communication modules and piece, and single-chip microcomputer passes through
RS485 communication modules are connected with communication bus, and single-chip microcomputer also selects voltage generation circuit to be connected with piece, and chip select circuit selects voltage with piece
Generation circuit connects；The sensing module includes power circuit, AD sampling modules, accelerometer, and power circuit is other circuits
Power supply, chip select circuit are connected with AD sampling modules, and AD sampling modules are connected with accelerometer.
Preferably, the power circuit be the 5V power-supply systems that are made up of LP2951 power supply chips and its peripheral circuit and by
The 3.3V power-supply systems of TLV713 power supply chips and its peripheral circuit composition.
Preferably, the single-chip microcomputer is also connected with geomagnetic sensor, temperature sensor and reset circuit.
Preferably, the sensing section is connected to the both sides of control section.
Preferably, it is described to control section and sensing to save as long 500mm, diameter 25mm hollow pipe.
Preferably, the number of the sensing section is less than 8.
Preferably, the geomagnetic sensor is three axle earth magnetism sensing chips, and the accelerometer is that three axle silicon microelectronics add
Speedometer chip.
Preferably, the communication bus can connect multiple geology monitoring displacement meters.
Preferably, the single-chip microcomputer uses msp430 series monolithics.
The utility model provides a kind of geology monitoring displacement meter, by processor by the data prediction collected and measurement
Carry out attitude algorithm after error compensation, and obtained orientation attitude information is sent to by serial ports it is right in the application program at PC ends
The model of displacement is shown, can monitor different geological stratifications.This other electronic compass is using sensor core leading in the industry
Piece has good performance for measurement accuracy, can meet most of measurement task required for precision.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and examples：
Fig. 1 is structural representation of the present utility model；
Fig. 2 is structured flowchart of the present utility model；
Fig. 3 is the Computing Principle schematic diagram of one section of posture of the utility model；
Fig. 4 is the principle schematic of the utility model multistage measurement；
Fig. 5 is the utility model chip select circuit figure；
Fig. 6 is that the utility model piece selects voltage generation circuit figure.
Embodiment
As shown in Figure 1-2, a kind of geology monitoring displacement meter, including control section 1 and multiple sensing sections 2, the control section and
Sensing section is connected by universal joint 3, and control module is provided with the control section 1, sensing module is provided with the sensing section 2, passes
Sense module electrically connects with control module；Sensing section and control section both ends all have the connection terminal and interface of cable, and can be ten thousand
Annexation is unaffected when being deformed to section, and has certain water-proof function.
The control module selects voltage generation circuit including single-chip microcomputer, RS485 communication modules and piece, and single-chip microcomputer passes through
RS485 communication modules are connected with communication bus, and single-chip microcomputer also selects voltage generation circuit to be connected with piece, and chip select circuit selects voltage with piece
Generation circuit connects；Piece selects voltage generation circuit mainly by single-chip microcomputer by controlling multiplexer by different reference voltages
It is input in the bus of voltage piece choosing, the voltage signal is by the voltage comparator circuit on each sensing section by each comparison circuit
The operating voltage of the bus voltage and place sensing section is compared, if bus voltage is in the operating voltage range of the sensing section
A signal is then exported to the multiplexer switch of sensing section, opening between required data wire and the data wire of bus will be communicated
Close and close, so with regard to that can communicate with one another between this sensing section and control section.The circuit is realized equivalent to using single line
For the piece selection operation of more than 2 circuits.The sensing module includes AD sampling modules, power circuit, accelerometer and piece choosing
Circuit, power circuit provide the power supply of normal work needs for other circuits, and accelerometer is connected with AD Acquisition Circuit, AD collections
Circuit is connected with chip select circuit.For the mode of traditional one master and multiple slaves, generally require a plurality of cable could realize main frame to from
The control of machine, such as, 3 lines can produce the signal of 8 slaves of control, in the present invention, by the way of voltage comparator,
Realize that single line is controlled to the slave of more than 2.
Preferably, the single-chip microcomputer is also connected with geomagnetic sensor, temperature sensor and reset circuit.
Preferably, the sensing section 2 is connected to the both sides of control section 1.
Preferably, the control section 1 and sensing section 2 are long 500mm, diameter 25mm hollow pipe.For deep soil movement amount
Measurement because the change of geology is not uniform, each different geological stratification has a different motion states, for example landslide is high
Occasion is sent out, the destructiveness of disaster is bigger if occurring larger displacement if deep.So the present invention is directed to the position of different depth
The articulated structure that system is divided into 500mm is moved, and is connected between section using universal joint, the position so respectively saved after displacement
The change in proportion with geologic shifts amount will occur, when host computer is shown can image find out geology change.
Preferably, the number of the sensing section 2 is less than 8.The sensing section of one end is not more than 4, and control section can be used as and pass
Sense section uses, so control section also calculates a sensing section, control section can be used as a sensing section to use, can so reduce one
The connection of individual section, so as to reach space-saving purpose.
Preferably, the geomagnetic sensor is three axle earth magnetism sensing chips, and the accelerometer is that three axle silicon microelectronics add
Speedometer chip.
Preferably, the communication bus can connect multiple geology monitoring displacement meters.Led to by MODBUS communications protocol
News, it is possible to achieve the data communication of most 256 nodes.
Preferably, the single-chip microcomputer uses msp430 series monolithics.
As shown in figure 5, being the utility model chip select circuit figure, U4 is voltage comparable chip, and R1, R2 and R3 collectively constitute electricity
The peripheral circuit of comparable chip, R10, R11, R13, and triode Q1 is pressed to form a Nverter circuit.D1 is multiplexer
Chip, XS3 and XS4 are respectively the connector for connecting a sensing section and next sensing section.R27 is divider resistance, and R31 is
0 ohm of resistance, the resistance are selected according to actual conditions and welded.R26 and R30 is grounding resistance.
As shown in fig. 6, selecting voltage generation circuit figure for the utility model piece, U2 is operational amplifier chip, and N1 and N2 are
Multiplexer chip, R15, R16, R17 and R18 are divider resistance, and Ref voltages are produced by reference voltage chip Ref3040.N1
Upper network label Vselect1/2 inputs for single-chip microcomputer signal；Network label 1V, 1.33V, 2V, 4V is voltage signal input, even
Then divider resistance above；SensorSel1/2 inputs for single-chip microcomputer signal in N2, and S1IN, S2IN are voltage output, respectively
Connect U2 5 pin and 10 pin；Network label S1, S2 output voltage signal on U2 7 pin and 8 pin selects electricity to voltage piece below
Road.
During installation, sensor can be placed in flexible pipe by way of punching, entered by hole inside measured object, with
The deformation of object and change, this mounting means is especially suitable for the monitoring of the depth displacement of slip mass.After sensor installs
Being placed in always in drilling can be monitored in real time to the depth displacement situation of slip mass., can be with after the completion of displacement measurement task
Sensor is extracted from flexible pipe, as long as measurement displacement is not above range, determines that displacement meter can in the case of not impaired
To realize recycling.In addition to punching and installing, sensor can also be attached to testee surface, such as the displacement to dam surface
It is monitored to evaluate the dam break risk of dam, for the measurement to deflection of bridge span and to highway, railway under bridge
Monitoring collapsed etc..
Angular surveying characteristic have acceleration analysis scope representative value ± 2g, measurement angle scope be representative value ±
90Degrees, measurement of dip angle resolution ratio are representative value 0.01Degrees, angular surveying repeatability is representative value
0.02Degrees, azimuth angle error are representative value ± 0.3Degrees, orthogonal error is representative value ± 0.1Degrees.It is special
It is representative value ± 0.1gauss that property parameter, which has magnetic-field measurement scope, and magnetic-field measurement noise is representative value ± 50nT, magnetic axis intercept
For representative value ± 0.1Degrees, six axle intercept ± 0.17Degrees.
Three sections of continuous axle microelectromechanical systems (MEMS) accelerometers are set in sensing section 2, every section of axle has had one
The length L known, pass through succinct the peacekeeping two-dimensional shapes of MEMS array sensor and algorithm measurement three and three-dimensional vibrating.Specifically
Deformation quantity computational methods it is as follows：
Δ X=θ L
Drift condition of one section for reference point can be obtained by above-mentioned formula.Such as shown in Fig. 3, detecting each portion
After the gravity field data divided, the angle of bend can between each section is calculated.Calculated angle of bend and
The length of known each section of axle, the deformation of displacement meter can be to determine completely.In only one section of sensor measurement, Wo Menke
To obtain A (X1, Y1, Z1), 2 points of B (X2, Y2, Z2) data, there are the two data to obtain this section of sensor in space
Angle (θ 1, θ 2, θ 3) in rectangular coordinate system (with typically using east northeast in practice coordinate system) on each Fang Xi, thus, more
In section measurement (such as Fig. 4), a point only need to be set as reference point, then the relative position of other each points can obtain.
In the control to sensing section, a comparator is used in sensing section, such as Fig. 5 when input voltage signal A_CS exists
When in setting range (representative value 1V), chip U4 5 pin export a high level signal, then by phase inverter output low level letter
Number D_CS, enabled pin of this low level signal to multiplexer, it will sense and save and the signal wire of control section is connected to one
Rise.Realize electrical connection of the control section to the sensing section signal wire.In control saves, first given birth to respectively by generating circuit from reference voltage
It is into 4v, 2v, 1.33v and 1v voltage, then by control of the single-chip microcomputer to multidiameter option switch, different reference voltage signals is defeated
Go out onto the signal wire for saving control to sensing, the signal is exactly the input of comparison circuit in sensing section.It is being connected with 4 sensing sections
In the case of, when signal input is 4v, due to the effect of series resistor partial pressure between each section, the input voltage of each section is not
Together, respectively 4v, 3v, 2v and 1v, in comparison circuit, the representative value of the enabled voltage of setting is 1v, thus at this moment last
Individual sensing section is enabled.When input voltage is 2v, penultimate sensing section is enabled；Input for 1.33v (4/3v) when, second
Individual enabled, when being 1v, first enabled.Thus realize and control selections of the section for different sensing sections with enabling.
Installation for displacement meter, it is length 500mm each to save, diameter 25mm PVC hose, with universal between each section
Section connection., it is necessary to drill in the monitoring for deep soil movement, during then displacement meter insertion is drilled, the cable of output
By drawing above, power supply and data processing for displacement meter, the form of base station can be used, this can be as the case may be
Select suitable mode.
It is to be attached to the mode on testee surface for another monitoring of environmental, because the diameter of displacement meter in itself is not
Very slightly so can such as be fixed using the fixing means similar to cable using a wire casing.
After all installment works terminate, the original state of displacement meter is calibrated, this state is for later data
Analysis significance is great, is an important parameter of change detection amount, all that the value must be recorded.
The above embodiments are only optimal technical scheme of the present utility model, and are not construed as limit of the present utility model
System, the technical scheme that the scope of protection of the utility model should be recorded with claim, including the technical scheme that claim is recorded
The equivalents of middle technical characteristic are protection domain.Equivalent substitution i.e. within this range is improved, also in the utility model
Protection domain within.
Claims (8)
1. a kind of geology monitors displacement meter, it is characterised in that：Saved including control（1）And multiple sensing sections（2）, it is described control section and
Sensing section passes through universal joint（3）Connection, the control section（1）It is interior to be provided with control module, the sensing section（2）It is interior to be provided with sensing mould
Block, sensing module electrically connect with control module；
The control module includes single-chip microcomputer, RS485 communication modules and chip select circuit, single-chip microcomputer by RS485 communication modules with
Communication bus is connected, and communication bus is connected with PC, and single-chip microcomputer is also connected with chip select circuit, and chip select circuit selects voltage to produce with piece
Circuit connects；The sensing module includes comparator, AD sampling modules, power circuit and accelerometer, and chip select circuit is compared with
Device is connected, and comparator is connected with AD sampling modules, and AD sampling modules are connected with power circuit, and power circuit connects with accelerometer
Connect, accelerometer is connected with AD sampling modules again.
A kind of 2. geology monitoring displacement meter according to claim 1, it is characterised in that：The single-chip microcomputer also senses with earth magnetism
Device, temperature sensor and reset circuit connection.
A kind of 3. geology monitoring displacement meter according to claim 1, it is characterised in that：The sensing section（2）It is connected to control
Section（1）Both sides.
A kind of 4. geology monitoring displacement meter according to claim 1, it is characterised in that：The control section（1）And sensing section（2）
For long 500mm, diameter 25mm hollow pipe.
A kind of 5. geology monitoring displacement meter according to claim 1, it is characterised in that：The sensing section（2）Number be less than 8
It is individual.
A kind of 6. geology monitoring displacement meter according to claim 2, it is characterised in that：The geomagnetic sensor is three axle earth magnetism
Sensing chip, the accelerometer are three axle silicon micro-electronics acceleration meter chips.
A kind of 7. geology monitoring displacement meter according to claim 1, it is characterised in that：The communication bus can connect multiplely
Quality supervision displacement meter.
A kind of 8. geology monitoring displacement meter according to claim 1, it is characterised in that：The single-chip microcomputer is using msp430 series
Single-chip microcomputer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720714978.3U CN207066383U (en) | 2017-06-19 | 2017-06-19 | A kind of geology monitors displacement meter |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720714978.3U CN207066383U (en) | 2017-06-19 | 2017-06-19 | A kind of geology monitors displacement meter |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108413922A (en) * | 2018-05-10 | 2018-08-17 | 新疆维吾尔自治区地震局 | A kind of fast detector for Borehole strain observation instrument |
| CN109639379A (en) * | 2018-12-20 | 2019-04-16 | 武汉耐普登科技有限公司 | Sensor module and sensing system |
| CN111157044A (en) * | 2020-01-02 | 2020-05-15 | 中国科学院武汉岩土力学研究所 | Inclination and force measurement integrated device |
| CN114858124A (en) * | 2022-04-14 | 2022-08-05 | 广东省水利水电科学研究院 | Dam surface deformation monitoring system and method |
-
2017
- 2017-06-19 CN CN201720714978.3U patent/CN207066383U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108413922A (en) * | 2018-05-10 | 2018-08-17 | 新疆维吾尔自治区地震局 | A kind of fast detector for Borehole strain observation instrument |
| CN109639379A (en) * | 2018-12-20 | 2019-04-16 | 武汉耐普登科技有限公司 | Sensor module and sensing system |
| CN111157044A (en) * | 2020-01-02 | 2020-05-15 | 中国科学院武汉岩土力学研究所 | Inclination and force measurement integrated device |
| CN114858124A (en) * | 2022-04-14 | 2022-08-05 | 广东省水利水电科学研究院 | Dam surface deformation monitoring system and method |
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