CN111561911A - Sedimentation monitoring system based on hydraulic micro-pressure measurement - Google Patents
Sedimentation monitoring system based on hydraulic micro-pressure measurement Download PDFInfo
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- CN111561911A CN111561911A CN202010454592.XA CN202010454592A CN111561911A CN 111561911 A CN111561911 A CN 111561911A CN 202010454592 A CN202010454592 A CN 202010454592A CN 111561911 A CN111561911 A CN 111561911A
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- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
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Abstract
The invention relates to the technical field of automatic monitoring, in particular to a settlement monitoring system based on hydraulic micro-pressure measurement, which comprises a server, a liquid storage device, monitoring sensing devices arranged at settlement monitoring points of each roadbed, liquid conveying pipes communicated with the liquid storage device and the monitoring sensing devices, and a data acquisition device connected with the monitoring sensing devices through cables, wherein the server processes received data to obtain a differential settlement value, a settlement rate and a settlement trend curve, and simultaneously processes relative settlement deformation data by using a settlement observation network base point elevation coordinate along a railway to obtain an absolute settlement value, and performs real-time, on-line, continuous monitoring and pre-warning on settlement of a roadbed, a road and bridge transition section, and a bridge Good stability and integration level, high practical value and wide application prospect.
Description
Technical Field
The invention relates to the technical field of automatic monitoring, in particular to a settlement monitoring system based on hydraulic micro-pressure measurement.
Background
In recent years, with the continuous and rapid development of economy and the gradual improvement of railway construction technology level, the railway industry of China, particularly high-speed railways, realizes the leap-type development. With the continuous perfection of the high-speed railway network, a newly-built railway inevitably needs to cross, run parallel with, widen with or introduce existing stations with the high-speed railway of opening operation, and similar engineering practices will be more and more. The wide application of the high-speed railway track technology makes the requirements of off-line engineering such as bridges, culverts, roadbeds and the like on post-construction settlement stricter.
Therefore, the stability of the roadbed is the key to success and failure of the construction of the high-speed railway, and the settlement problem is the most typical problem. The poor settlement treatment can leave hidden troubles for engineering quality, so that the phenomena of road surface settlement, vehicle bump at the bridge head and the like occur in the railway during operation, the normal use is influenced if the phenomena are not good, and accidents and vehicle damage and people death occur if the phenomena are not good. Therefore, monitoring of subgrade settlement is an important issue in railway construction.
In the past, railway subgrade settlement monitoring mainly depends on manual observation, the defects that labor intensity is high, the counting period is long, many manual errors can be caused, reported information is wrong, particularly, the frequency is increased along with the prolonging of the running time of a high-speed train, the window opening time is less and less, serious hidden dangers are buried for the normal running of the high-speed railway, meanwhile, railway subgrade settlement is a complex three-dimensional process, factors influencing a prediction result are very many, and great difficulty is brought to settlement prediction.
The existing roadbed settlement monitoring technology is developed for decades, the measuring method is continuously improved, the measuring instruments are more and more in variety, and the settlement measuring method commonly used at present comprises the following steps: level measurement, settlement plates, profile settlers, single point settlers, etc. The above-mentioned measuring methods generally have the disadvantages of inconvenient installation or use, and of being greatly affected by the outside world, and are particularly unsuitable for use during the railway operation period. Therefore, a measuring method or system which meets the measuring precision requirement, is simple and convenient to operate and has reasonable cost and is suitable for being used in the railway operation period needs to be designed.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a settlement monitoring system based on hydraulic micro-pressure measurement to solve the problems.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the invention provides a settlement monitoring system based on hydraulic micro-pressure measurement, which comprises a server and a liquid storage device, wherein the server is connected with the liquid storage device;
a plurality of monitoring sensing devices respectively arranged at each subgrade settlement monitoring point;
the liquid conveying pipe is communicated with the liquid storage device and each monitoring sensing device;
the data acquisition device is connected with each monitoring sensing device through a cable;
the data acquisition device is provided with software for acquiring signals and converting the signals and is used for converting the data acquired by the monitoring sensor into settlement related data;
the data acquisition device is internally provided with a communication module connected with the server, and the communication module transmits the processed and converted data to the server;
the server processes the received data to obtain a differential settlement value, a settlement rate and a settlement trend curve, processes the relative settlement deformation data by using the elevation coordinates of the settlement observation network base points along the railway to obtain an absolute settlement value, and performs real-time, online and continuous monitoring and early warning on the settlement of the roadbed, the road and bridge transition section and the bridge.
Preferably, the monitoring sensing devices are arranged on a track roadbed side slope, a concrete platform of a road bridge transition section and a bridge and are connected with each other through cables, liquid conveying pipes and air pipes.
Preferably, the server performs self-checking self-control on the received data, judges whether the settlement data is abnormal or not, generates an equipment fault report when the abnormality is determined, and reports fault report information;
and when no abnormity is determined, correcting the settlement data by combining the temperature data, and performing denoising treatment to obtain the treated settlement data for subsequent treatment.
Preferably, when it is determined that there is no abnormality, the settling volume data is corrected by combining with the temperature data, and denoising is performed to obtain processed settling volume data, which specifically includes:
when no abnormity is determined, correcting the sedimentation amount data by combining the temperature data;
calculating an arithmetic mean value X and a residual error of each settlement data according to the n settlement data Xi:
wherein i is more than or equal to 1 and less than or equal to n;
calculating the standard error of the independent settlement data according to a Bessel formula;
when the remaining error of any settling amount data Xi satisfies the following condition:
the k value can be adjusted according to the noise degree;
and determining that the error of the independent settlement data Xi is greater than a preset value, and eliminating to obtain processed settlement data.
Preferably, the monitoring sensing device comprises a device body, a differential pressure sensor and a detachable mounting base;
the device body is cylindrical, an air cavity and a liquid storage cavity are arranged in the device body from top to bottom, the differential pressure sensor is arranged between the air cavity and the liquid storage cavity in a sealing mode, the sensing diaphragm side and the opposite side of the differential pressure sensor are respectively in contact connection with the top of the liquid storage cavity and the bottom of the air cavity, two liquid communication interfaces are symmetrically arranged on the lower portion of the side face of the device body and communicated with the liquid storage cavity, two air communication interfaces are symmetrically arranged on the top of the device body and communicated with the air cavity, and a threaded column is fixedly arranged in the center of the bottom of the device body;
but split installation base includes first bottom plate and second bottom plate, first bottom plate and second bottom plate central point put and are provided with the recess that is used for holding each other, the groove symmetry of first bottom plate and second bottom plate is provided with the screw hole that matches with the screw thread post, when first bottom plate and second bottom plate are in the installation completion state, first bottom plate with the second bottom plate is perpendicular the setting, the screw thread post passes through the screw hole with first bottom plate with the locking of second bottom plate, and this moment first bottom plate with the bottom surface of second bottom plate is in the coplanar.
Preferably, the device body lateral wall is provided with exhaust duct, exhaust duct with stock solution chamber intercommunication, just the inboard top of exhaust duct with stock solution chamber top flushes, the last exhaust valve that is equipped with of exhaust duct.
Preferably, the air communication interface is L-shaped;
the inner side of the device body can be also detachably provided with a temperature sensor and a heating device.
Preferably, the differential pressure sensor is a silicon micro differential pressure sensor.
Preferably, a plurality of reinforcing ribs are uniformly arranged on the lower portion of the side surface of the device body at intervals.
Preferably, the exterior of the device body is provided with a coating layer made of a heat insulating material.
Compared with the prior art, the invention has the following beneficial effects:
the invention overcomes the defects brought by the elevation change measured by the existing settlement measuring system, has convenient field installation and use, strong anti-interference capability, easy realization of automatic monitoring of settlement of a plurality of monitoring points in a certain area, high measurement precision and good long-term stability, is very suitable for long-term automatic monitoring of settlement deformation of a passenger dedicated line of a high-speed railway, simultaneously judges whether the settlement data is abnormal or not for the collected settlement data, generates an equipment fault report to report when the settlement data is abnormal, corrects the settlement data by combining temperature data if the settlement data is not abnormal, then removes noise to obtain the processed settlement data, improves the fault tolerance of the system, enhances the accuracy of data processing, obtains a differential settlement value, a settlement rate, a settlement trend curve and the like by the system at a control center, the relative settlement deformation data is processed by using the elevation coordinates of the settlement observation network base points along the railway, and an absolute settlement value can be obtained, so that real-time, online and continuous monitoring and early warning of subgrade, road and bridge transition sections and bridge settlement are realized, powerful support is provided for railway operation safety, and monitoring performance can be improved.
According to the invention, the monitoring and sensing devices can be communicated with each other through the air communication interface and the liquid communication interface, so that the rapid assembly is realized, the air pressure borne by the differential pressure sensor in each monitoring and sensing device is the same by matching with the air cavity, and the measurement errors caused by different air pressures are reduced; in addition, the air cavity, the liquid storage cavity and the differential pressure sensor are creatively integrated in the design device body and are in contact connection with each other in an up-and-down sealing manner, so that the structural design is reasonable, and the contact convenience between the differential pressure sensor and liquid in the liquid storage cavity and the accuracy of measurement positions and data are guaranteed.
The mounting base can be detachably connected with the device body, is in groove-type matched connection with the first and second bottom plates and is locked through the threaded columns, so that the stability and the integrity of the monitoring device in a roadbed after mounting are ensured, and meanwhile, the mounting base has a folding state and a unfolding state in the mounting process, can smoothly penetrate through a small gap between rail sleepers and move to the roadbed, the assembly performance of the device is improved, the mounting is convenient, and the application scene of the device is enlarged.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic structural diagram of a settlement monitoring system based on hydraulic micro-pressure measurement according to the present invention;
FIG. 2 is a schematic view of a partial structure of a settlement monitoring system based on hydraulic micro-pressure measurement according to the present invention;
FIG. 3 is a schematic diagram of the monitoring and sensing device of the present invention;
FIG. 4 is a top view of a detachably mountable base of the monitoring and sensing apparatus of the present invention;
FIG. 5 is a schematic perspective view of a detachably mountable base of the monitoring and sensing apparatus of the present invention;
FIG. 6 is a schematic structural diagram of the device body of the monitoring and sensing device of the present invention;
FIG. 7 is a schematic view of the monitoring sensor device of the present invention with the device body filled with liquid;
fig. 8 is a schematic structural view of the monitoring sensor device of the present invention in which a controller is mounted to the device body.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that certain names are used throughout the specification and claims to refer to particular components. It will be understood that one of ordinary skill in the art may refer to the same component by different names. The present specification and claims do not intend to distinguish between components that differ in name but not function. As used in the specification and claims of this application, the terms "comprises" and "comprising" are intended to be open-ended terms that should be interpreted as "including, but not limited to," or "including, but not limited to. The embodiments described in the detailed description are preferred embodiments of the present invention and are not intended to limit the scope of the present invention.
Moreover, those skilled in the art will appreciate that aspects of the present invention may be embodied as a system, method or computer program product. Accordingly, various aspects of the present invention may be embodied in a combination of hardware and software, which may be referred to herein generally as a "circuit," module "or" system. Furthermore, in some embodiments, various aspects of the invention may also be embodied in the form of a computer program product in one or more microcontroller-readable media having microcontroller-readable program code embodied therein.
Example 1
As shown in fig. 1 to 8, the settlement monitoring system based on hydraulic micro-pressure measurement provided in this embodiment includes a server 4, a liquid storage device 5, a plurality of monitoring and sensing devices 1 respectively arranged at each foundation settlement monitoring point, a liquid conveying pipe 6 communicated with the liquid storage device 5 and each monitoring and sensing device 1, and a plurality of data acquisition devices 8 connected to each monitoring and sensing device 1 through cables 7;
the data acquisition device 8 is provided with software for acquiring signals and converting the signals and is used for converting the data acquired by the monitoring sensing device 1 into settlement related data;
a communication module connected with the server 4 is arranged in the data acquisition device 8, and the communication module transmits the processed and converted data to the server 4;
the server 4 processes the received data to obtain a differential settlement value, a settlement rate and a settlement trend curve, processes the relative settlement deformation data by using the elevation coordinates of the settlement observation network base points along the railway to obtain an absolute settlement value, and performs real-time, on-line and continuous monitoring and early warning on the settlement of the roadbed, the road and bridge transition section and the bridge.
The monitoring sensing device 1 in this embodiment is arranged on a concrete platform and a bridge at a transition section of a track subgrade slope and a road bridge, and is connected with each other through a cable 7, a liquid conveying pipe 6 and an air pipe 9.
In this embodiment, the server 4 performs self-checking and automatic control on the received data, determines whether the settlement amount data is abnormal, generates an equipment fault report when determining that the settlement amount data is abnormal, and reports fault report information;
and when no abnormity is determined, correcting the settlement data by combining the temperature data, and performing denoising treatment to obtain the treated settlement data for subsequent treatment.
In this embodiment, when determining that there is no abnormality, the server 4 corrects the sedimentation amount data in combination with the temperature data, and performs denoising processing to obtain processed sedimentation amount data, which specifically includes:
when no abnormity is determined, correcting the sedimentation amount data by combining the temperature data;
calculating an arithmetic mean value X and a residual error of each settlement data according to the n settlement data Xi:
Vi＝Xi-X, wherein 1 ≦ i ≦ n;
calculating the standard error of the independent settlement data according to a Bessel formula;
residual error V at any one settlement data XiiWhen the following conditions are satisfied:
|Vi|＝|Xi-X > k σ, the value of k being adjustable according to the degree of noise;
and determining that the error of the independent settlement data Xi is greater than a preset value, and eliminating to obtain processed settlement data.
The monitoring sensing device 1 in the embodiment comprises a device body 1, a differential pressure sensor 2 and a detachable mounting base 3;
the device body 1 is cylindrical, an air cavity 11 and a liquid storage cavity 12 are arranged in the device body 1 from top to bottom, the differential pressure sensor 2 is hermetically arranged between the air cavity 11 and the liquid storage cavity 12, the sensing diaphragm side and the opposite side of the differential pressure sensor 2 are respectively in contact connection with the top of the liquid storage cavity 12 and the bottom of the air cavity 11, two liquid communication interfaces 13 are symmetrically arranged on the lower portion of the side face of the device body 1, the liquid communication interfaces 13 are communicated with the liquid storage cavity 12, two air communication interfaces 14 are symmetrically arranged on the top of the device body 1, the air communication interfaces 14 are communicated with the air cavity 11, and a threaded column 15 is fixedly arranged in the center of the bottom of the device body 1;
the detachable mounting base 3 comprises a first base plate 31 and a second base plate 32, a groove 33 used for containing the first base plate 31 and the second base plate 32 is formed in the center of the first base plate 31, a threaded hole 34 matched with the threaded column 15 is symmetrically formed in the groove 33 of the first base plate 31 and the second base plate 32, the first base plate 31 and the second base plate 32 are vertically arranged when the first base plate 31 and the second base plate 32 are in a mounting completion state, the threaded column 15 enables the first base plate 31 and the second base plate 32 to be locked through the threaded hole 34, and at the moment, the bottom surfaces of the first base plate 31 and the second base plate 32 are located on the same plane.
In this embodiment, the side wall of the device body 1 is provided with an exhaust duct 16, the exhaust duct 16 is communicated with the liquid storage cavity 12, the top of the inner side of the exhaust duct 16 is flush with the top of the liquid storage cavity 12, and the exhaust duct 16 is provided with an exhaust valve 17. The design of the exhaust valve 17 is that after the equipment is installed, the gas in the liquid storage cavity 12 can be completely discharged, and after the exhaust valve 17 is arranged, the cavity can be ensured to be filled with liquid, so that the stability during detection is ensured.
The air communication port 14 is L-shaped in this embodiment.
In this embodiment, the temperature sensor 18 and the heating device 19 are detachably provided inside the apparatus body 1. A method of temperature compensation can be provided to eliminate errors due to temperature and non-linearity, and a two-wire PT100 analog sensor can be selected as the temperature sensor 18. The PT100 has good long-term stability, good linearity, quick response time, small self-heating coefficient and the test current is in an allowable value range, thereby meeting the technical requirements of the system. The temperature sensor is arranged next to the heating rod, so that the accuracy and consistency of the temperature can be ensured.
The differential pressure sensor 2 is a silicon micro differential pressure sensor in the present embodiment.
In this embodiment, the silicon micro-pressure difference sensor is a silicon piezoresistive oil-filled core. The shell of the silicon piezoresistive transducer is of a non-induced steel structure, the structure is adopted because the mechanical design is more convenient, the mechanical design tightness is ensured, the internal structure of the silicon piezoresistive transducer is equivalent to a Wheatstone bridge, two of the silicon piezoresistive transducer are power input and output, and the other two silicon piezoresistive transducer are differential output signal lines. When the pressure is slightly changed, the four resistance values of the Wheatstone bridge are changed, and differential pressure is generated between out + and out-to generate differential mode signals. The technical characteristics of the silicon piezoresistive oil-filled core (diffused silicon sensor) include high sensitivity: the sensitivity factor of the diffused silicon sensitive resistor is 50-80 times higher than that of the metal strain gauge, and the full-scale signal output of the diffused silicon sensitive resistor is about 80-100 mv. The interface circuit has good adaptability and the application cost is correspondingly low. Because the input excitation voltage is low, the output signal is large, and no mechanical moving part loss exists, the resolution ratio is extremely high; the precision is high: the sensing, sensitive conversion and detection of the diffused silicon pressure sensor are integrated, and a mechanical moving part connecting and converting link is not needed, so that repeatability and hysteresis errors are small. The silicon material has good rigidity and small deformation, so the linearity of the sensor is very good; the reliability is high: the elastic deformation of the diffused silicon sensitive membrane is in the magnitude of micro-strain, the maximum displacement of the membrane is in the magnitude of micron, and the diffused silicon sensitive membrane has no mechanical wear, fatigue and aging. The average failure-free time is long, the performance is stable, and the reliability is high; the frequency response is high: the natural frequency of the sensitive membrane silicon material is high, and is generally 50 KC. The manufacturing process adopts an integrated process, the effective area of the diaphragm can be very small, and the sensor has very high frequency response by being matched with a special design of the preposed installation of a rigid structure, and the use bandwidth can reach zero frequency to 100 kHz; the temperature performance is good: with the progress of the integration technology, the consistency of four resistors of the diffused silicon sensitive film is further improved, the original manual compensation is replaced by laser resistance adjustment and computer automatic trimming technology, the zero position and sensitivity temperature coefficient of the sensor reach the magnitude order of 10 < -5 >/DEG C, and the working temperature is also greatly improved; the electrical breakdown resistance is good: due to the adoption of special materials and an assembly process, the diffused silicon sensor can be normally used at 130 ℃, and can resist the impact of 1500V/AC voltage in a strong magnetic field and high voltage breakdown test; the corrosion resistance is good: the diffusion silicon material has good chemical corrosion resistance, so that the sensor can adapt to various media in common use even if the pressure surface of the sensor is not isolated. The silicon material has good compatibility with the silicone oil, so that the structure process is easier to realize when the silicon material is isolated by adopting an anti-corrosion material. In addition, the characteristics of low voltage, low current, low power consumption, low cost and intrinsic safety explosion prevention can replace a plurality of products with the same function in the same type, and the product has the best cost performance, and the indexes adopted in the embodiment are as follows: the power supply is constant current, the precision is 0.25% FS, the zero point is 2mV, the zero point temperature drift is 0.02% FS/DEG C, the sensitivity temperature drift is 0.02% FS/DEG C, the response time is less than or equal to 50 mu s, the input impedance is 2500 omega, the output impedance is 2500 omega, and the power supply current is 1.5 mA.
In this embodiment, a plurality of reinforcing ribs 101 are uniformly arranged at intervals on the lower portion of the side surface of the main body 1. The stability of the device can be improved.
In this embodiment, the exterior of the apparatus body 1 is provided with a coating layer made of a heat insulating material.
In this embodiment, a controller 102 is detachably connected to the outside of the device body 1, and the controller 102 is electrically or data-connected to the differential pressure sensor 2, the temperature sensor 18 and the heating device 19.
When the device is used, the roadbed needing to be provided with the monitoring device is sequentially placed into the first bottom plate 31 and the second bottom plate 32 according to the installation environment, the roadbed is excavated in advance, the bottom of the first bottom plate 31 is in contact with a roadbed surface, the first bottom plate 31 and the second bottom plate 32 are vertically arranged, the grooves 33 are mutually clamped, the threaded columns 15 arranged at the bottom of the device body 1 are screwed on the threaded holes 34, the liquid communication interface 13 is connected into the liquid storage source through a hose and matched with the exhaust valve 17 to enable the liquid storage cavity 12 to be filled with liquid, meanwhile, the air pipeline connecting the air communication interface 14 into the monitoring system ensures that the pressure in the air cavity 11 is consistent, and the controller is backfilled after being connected into a system circuit and a data line.
The measurement principle or method of the settlement monitoring system based on the hydraulic micro-pressure measurement provided by the embodiment comprises the following steps:
segmenting the railway line according to the altitude, and processing each segment as follows:
searching a relatively stable position as a detection reference point of a road section needing settlement monitoring;
a liquid storage device 5 is arranged at a reference point, the liquid storage device 5 is connected with liquid communication interfaces 13 of the monitoring and sensing devices 1 along the line through pipelines, and the monitoring and sensing devices 1 are basically arranged at the same horizontal position;
by inquiring the displacement of each monitoring sensing device 1 relative to the datum point, the settlement condition of the roadbed at each measuring point can be obtained through corresponding calculation; the specific principle is as follows: if the roadbed deforms, the differential pressure sensors 2 and the flexible communicating pipes at all the test points deform simultaneously; the deformation result enables the elevation difference between the measuring point and the reference liquid level to change, and the change of the elevation difference can be calculated by only measuring the change of the pressure difference by utilizing the proportional relation between the elevation difference and the liquid pressure difference, so that the size of the sedimentation deformation can be calculated.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. The utility model provides a settlement monitoring system based on hydraulic minute-pressure measurement, includes the server, its characterized in that still includes:
a liquid storage device;
a plurality of monitoring sensing devices respectively arranged at each subgrade settlement monitoring point;
the liquid conveying pipe is communicated with the liquid storage device and each monitoring sensing device;
the data acquisition device is connected with each monitoring sensing device through a cable;
the data acquisition device is provided with software for acquiring signals and converting the signals and is used for converting the data acquired by the monitoring sensing device into settlement related data;
the data acquisition device is internally provided with a communication module connected with the server, and the communication module transmits the processed and converted data to the server;
the server processes the received data to obtain a differential settlement value, a settlement rate and a settlement trend curve, processes the relative settlement deformation data by using the elevation coordinates of the settlement observation network base points along the railway to obtain an absolute settlement value, and performs real-time, online and continuous monitoring and early warning on the settlement of the roadbed, the road and bridge transition section and the bridge.
2. The settlement monitoring system based on hydraulic micro-pressure measurement as claimed in claim 1, wherein the monitoring sensor devices are arranged on the track bed side slope, the concrete platform of the road and bridge transition section and the bridge, and are connected with each other through cables, liquid conveying pipes and air pipes.
3. The settlement monitoring system based on hydraulic micro-pressure measurement as claimed in claim 1, wherein the server performs self-inspection self-control on the received data, determines whether the settlement amount data is abnormal, generates an equipment fault report when determining that there is an abnormality, and reports fault report information;
and when no abnormity is determined, correcting the settlement data by combining the temperature data, and performing denoising treatment to obtain the treated settlement data for subsequent treatment.
4. The settlement monitoring system based on hydraulic micro-pressure measurement as claimed in claim 3, wherein when it is determined that there is no abnormality, the settlement amount data is corrected by combining with temperature data, and de-noising processing is performed to obtain processed settlement amount data, specifically comprising:
when no abnormity is determined, correcting the sedimentation amount data by combining the temperature data;
according to n sedimentation amount data XiCalculating the arithmetic mean value X and the residual error of each settlement data:
Vi＝Xi-X, wherein 1 ≦ i ≦ n;
calculating the standard error sigma of the independent settlement data according to a Bessel formula;
at any one sedimentation amount data XiResidual error V ofiWhen the following conditions are satisfied:
|Vi|＝|Xi-X > k σ, the value of k being adjustable according to the degree of noise;
determiningThe independent sedimentation amount data XiIf the error is larger than the preset value, the settlement data after processing should be eliminated to obtain.
5. The settlement monitoring system based on hydraulic micro-pressure measurement is characterized in that the monitoring and sensing device comprises a device body, a differential pressure sensor and a detachable mounting base;
the device body is cylindrical, an air cavity and a liquid storage cavity are arranged in the device body from top to bottom, the differential pressure sensor is arranged between the air cavity and the liquid storage cavity in a sealing mode, the sensing diaphragm side and the opposite side of the differential pressure sensor are respectively in contact connection with the top of the liquid storage cavity and the bottom of the air cavity, two liquid communication interfaces are symmetrically arranged on the lower portion of the side face of the device body and communicated with the liquid storage cavity, two air communication interfaces are symmetrically arranged on the top of the device body and communicated with the air cavity, and a threaded column is fixedly arranged in the center of the bottom of the device body;
but split installation base includes first bottom plate and second bottom plate, first bottom plate and second bottom plate central point put and are provided with the recess that is used for holding each other, the groove symmetry of first bottom plate and second bottom plate is provided with the screw hole that matches with the screw thread post, when first bottom plate and second bottom plate are in the installation completion state, first bottom plate with the second bottom plate is perpendicular the setting, the screw thread post passes through the screw hole with first bottom plate with the locking of second bottom plate, and this moment first bottom plate with the bottom surface of second bottom plate is in the coplanar.
6. The settlement monitoring system based on hydraulic micropressure measurement according to claim 5, characterized in that the device body side wall is provided with an exhaust pipeline, the exhaust pipeline is communicated with the liquid storage cavity, the top of the inner side of the exhaust pipeline is flush with the top of the liquid storage cavity, and the exhaust pipeline is provided with an exhaust valve.
7. The settlement monitoring system based on hydraulic micro-pressure measurement is characterized in that the air communication interface is L-shaped;
the inner side of the device body can be also detachably provided with a temperature sensor and a heating device.
8. The settlement monitoring system based on hydraulic minute-pressure measurement as claimed in claim 5, wherein the differential pressure sensor is a silicon minute-pressure differential sensor.
9. The settlement monitoring system based on hydraulic micro-pressure measurement is characterized in that a plurality of reinforcing ribs are uniformly arranged on the lower portion of the side face of the device body at intervals.
10. The settlement monitoring system based on hydraulic micro-pressure measurement as claimed in claim 5, wherein the device body is externally provided with a coating layer made of heat insulating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010454592.XA CN111561911A (en) | 2020-05-26 | 2020-05-26 | Sedimentation monitoring system based on hydraulic micro-pressure measurement |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010454592.XA CN111561911A (en) | 2020-05-26 | 2020-05-26 | Sedimentation monitoring system based on hydraulic micro-pressure measurement |
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| CN111561911A true CN111561911A (en) | 2020-08-21 |
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| CN202010454592.XA Withdrawn CN111561911A (en) | 2020-05-26 | 2020-05-26 | Sedimentation monitoring system based on hydraulic micro-pressure measurement |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116358487A (en) * | 2023-02-09 | 2023-06-30 | 山东大学 | Micro-pressure ground deformation area-based area type monitoring system and method |
-
2020
- 2020-05-26 CN CN202010454592.XA patent/CN111561911A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116358487A (en) * | 2023-02-09 | 2023-06-30 | 山东大学 | Micro-pressure ground deformation area-based area type monitoring system and method |
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Application publication date: 20200821 |
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