CN112503401A - Oil gas pipeline micro-displacement monitoring system - Google Patents

Oil gas pipeline micro-displacement monitoring system Download PDF

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Publication number
CN112503401A
CN112503401A CN202011536510.2A CN202011536510A CN112503401A CN 112503401 A CN112503401 A CN 112503401A CN 202011536510 A CN202011536510 A CN 202011536510A CN 112503401 A CN112503401 A CN 112503401A
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ultra
micro
positioning base
displacement
base station
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邓子恒
梅海粟
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Chengdu Ludi Shenghua Technology Co ltd
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Chengdu Haiheng Star Technology Partnership LP
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17DPIPE-LINE SYSTEMS; PIPE-LINES
    • F17D5/00Protection or supervision of installations
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00Devices or appurtenances for use in, or in connection with, pipes or pipe systems

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  • General Engineering & Computer Science (AREA)
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Abstract

The application relates to the field of monitoring, in particular to a micro-displacement monitoring system applied to an oil-gas pipeline, which comprises a data processing platform, a micro-displacement monitoring terminal and a pipeline installation package; the pipeline installation package is connected with the micro-displacement monitoring terminals, the micro-displacement monitoring terminals are mutually connected by ultra-wideband wireless signals in communication, and the data processing platform is connected with the micro-displacement monitoring terminals through communication signals; this application adopts ultra wide band location technique, does not use extra synchronous network and positioning accuracy height, can learn the displacement volume a little through the coordinate difference value of calculating the location, and this device degree of automation is high simultaneously, is fit for field usage, has avoided setting up circuit increase monitoring cost.

Description

Oil gas pipeline micro-displacement monitoring system
Technical Field
The application relates to the field of monitoring, in particular to a micro-displacement monitoring system applied to an oil-gas pipeline.
Background
The existing pipeline engineering is influenced by geological disasters or activities in the operation process and can generate settlement and displacement, so that major safety accidents are caused or major potential safety hazards are formed. Therefore, the displacement becomes a key monitoring index in routine maintenance of the pipeline engineering. The prior similar technology exists in the patent application with the patent number of CN201320294343.4 and the name of roadbed settlement monitoring system, and the technical scheme is as follows: the application discloses subgrade settlement monitoring system, including surveillance center, laser reference appearance support, fix the laser reference appearance on the laser reference appearance support, its characterized in that: the laser reference instrument emits laser to the micro displacement positioner, the micro displacement positioner transmits data to the data processor, and the data processor transmits the processed data to the monitoring center through radio.
Based on the prior art and the above patent contents, the displacement monitoring system in the field is the most common total station based on optical means, and has high precision, generally millimeter level, and the action distance in kilometer level. However, due to the working principle of the system, the system is limited to the area with excellent optical identification conditions, such as rain, hail, fog, forest sheltering and the like, and cannot be used under the conditions, and under the conditions, the safety state monitoring of scenes such as oil and gas pipelines and the like is extremely important; meanwhile, the system is generally operated manually, so the measurement frequency, efficiency and cost are very high in the later period. In addition, a monitoring system based on a GPS positioning technology is also available, and the system uses a satellite to position coordinates of a monitoring point, acquires settlement data based on coordinate changes, but must be connected with the satellite, and is not high in measurement accuracy, low in data extraction frequency, and not suitable for micro-displacement.
Disclosure of Invention
In order to overcome the above-mentioned not enough that exists among the prior art, this application provides an oil gas pipeline micro displacement monitoring system, and for realizing above-mentioned technical effect, the technical scheme of this application is as follows:
a micro-displacement monitoring system for an oil and gas pipeline comprises a data processing platform, a micro-displacement monitoring terminal and a pipeline installation package; the pipeline installation package is connected with the micro-displacement monitoring terminals, the micro-displacement monitoring terminals are mutually connected by ultra-wideband wireless signals in communication, and the data processing platform is connected with the micro-displacement monitoring terminals through communication signals;
the micro-displacement monitoring terminal is divided into at least one ultra wide band positioning base station and at least two ultra wide band positioning base stations, wherein the ultra wide band positioning base stations are positioned at monitoring displacement points and fixed on an oil and gas pipeline, the three positioning base stations form a three-dimensional space, the ultra wide band positioning base stations are mutually connected with the ultra wide band positioning base stations through ultra wide band wireless signals, and the ultra wide band positioning base stations respectively comprise an instruction sending unit, an acquisition recording unit, a distance calculating unit and a comparison prompting unit;
an instruction transmitting unit: the system is used for sending instructions to the ultra-wideband positioning base station, the ultra-wideband positioning base station or/and the data processing platform; the ultra-wideband positioning base station sends instructions to the ultra-wideband positioning base station and the data processing platform through a mobile network, and the ultra-wideband positioning base station sends instructions to the ultra-wideband positioning base station, the ultra-wideband positioning base station and the data processing platform through the mobile network; and the data processing platform sends a detection instruction to the ultra-wideband positioning base station to activate the ultra-wideband positioning base station, and the ultra-wideband positioning base station sends an ultra-wideband signal to the ultra-wideband positioning base station at the monitoring displacement point.
The acquisition and recording unit: after the ultra-wideband positioning base station positioned at the monitoring displacement point receives periodic ultra-wideband signals sent by the ultra-wideband positioning base stations in two different directions, the acquisition and recording unit acquires and records direct distances a and b between the two ultra-wideband positioning base stations and the ultra-wideband positioning base stations respectively; and acquiring and recording the distance d between the two ultra-wideband positioning base stations.
The distance calculation unit is used for calculating the current position information of the ultra-wideband positioning base station according to the recorded direct distances a and b between the two ultra-wideband positioning base stations and the ultra-wideband positioning base station and the recorded distance d between the two ultra-wideband positioning base stations; the distance calculation unit calculates the position information of the current monitoring displacement point by recording the data information
Figure RE-219479DEST_PATH_IMAGE002
X is calculated and then uploaded to a data processing platform for post-processing; wherein a is1And a2A value representing the distance a of two adjacent calculations, b1And b2A numerical value representing the distance b of two adjacent calculations.
Further, the specific method for calculating the current position information of the ultra-wideband positioning base station is the following time difference algorithm: each micro-displacement monitoring terminal generates an independent time axis from the start, an instruction sending unit of the ultra-wide band positioning base station transmits a pulse signal with a request property at T1 on a time stamp of the ultra-wide band positioning base station, the ultra-wide band positioning base station receives the pulse signal at the time of T2 and transmits a signal with a response property at the time of T3, the ultra-wide band positioning base station receives the pulse signal at the time of the time stamp of the ultra-wide band positioning base station at the time of T4, and the ultra-wide band positioning base station transmits a request signal T5 to the ultra-wide band positioning base station and sequentially; therefore, the flight time of the pulse signal between the two modules can be calculated, and the flight distance S is determined; s = c [ (T4-T1)/2- (T5-T4)/2] (c is the speed of light) calculates the current position information of the monitor displacement point.
Furthermore, after 3 micro-displacement terminals measure distance mutually, a 2D coordinate system can be obtained, and then a micro-displacement terminal is added to enable positioning to be more accurate and increase dimensionality to 3D; at the moment, the initial coordinates of the monitoring points are obtained through the time difference algorithm, after the micro-displacement distance is obtained through the time difference algorithm, the brand new coordinates of the points are calculated, and the coordinates of the other three points are regarded as unchanged.
The comparison prompting unit is used for comparing the current position information of the monitoring displacement point with the initial record information by the ultra-wideband positioning base station, calculating whether the monitoring displacement point is displaced or not, and performing corresponding prompting; the method can also be used for setting the safety range of the deformation of the pipeline, acquiring the initial monitoring position information, comparing the current position information and calculating whether the pipeline is in the safety deformation range.
Further, the data processing platform is a server, the server is located at the cloud end, the data processing platform is connected with the display terminal through signals, and the data processing platform comprises: the device comprises an equipment management module and a displacement and settlement monitoring module;
the equipment management module describes detailed information of the machine equipment, and the detailed information comprises equipment electric quantity, equipment condition, offset condition and positioning coordinates.
And the displacement and settlement monitoring module is used for monitoring the detailed displacement data of the monitoring displacement point, setting a reference point according to needs, and displaying an initial measured value, a last measured value, a current measured value, an accumulated variation and an additional state in a remark column. And calculating the displacement information sent by the micro-displacement monitoring terminal.
Early warning and warning information module: after long-time data acquisition and learning, the obtained big data is utilized to realize the prompting of displacement monitoring, settlement monitoring and deep monitoring conditions.
A monitoring report module: the summary of displacement monitoring and settlement monitoring conditions can also be used for exporting records, so that the records are convenient to store and view.
Furthermore, the pipeline installation package and the micro-displacement monitoring terminal are bound and locked with each other, and the pipeline installation package is an anchor ear type installation structure, a wearable type installation structure or a sleeve type installation structure;
still further, staple bolt formula mounting structure utilizes U type clamp hasp to be fixed in on the installation pole micro displacement monitor terminal. The mode is flexible to install and convenient to detach, and is suitable for being arranged on a side slope.
Still further, wearable mounting structure includes ranging module, wearing formula base, high strength fastening area, and ranging module passes through the screw thread installation with wearing formula, and it is fixed with the pipeline that wearing formula passes through the mounting hole through high strength fastening area. The module is tightly attached to the pipe wall, is flexible to mount and convenient to dismount, and is suitable for being arranged at the middle positions of the hoisting pipeline and the foundation pit.
Still further, the sleeve type mounting structure comprises a distance measuring module, an extension rod and a sleeve type base; the extension rod and the sleeve type base are of a full steel structure, the extension rod base is welded on the upper half ring of the sleeve, the extension rod is connected with the upper half ring sleeve through threads, and the upper half ring and the lower half ring of the sleeve are fixed through M12 stainless steel bolts.
The working principle of the oil and gas pipeline micro-displacement monitoring system is as follows:
step 1, a data processing platform issues a monitoring instruction to a micro-displacement monitoring terminal;
step 2, if the micro-displacement monitoring terminal receives the instruction, executing step 3; if the micro-displacement monitoring terminal does not receive the instruction, the micro-displacement monitoring terminal informs the data processing platform and the data processing platform issues the instruction again;
step 3, the micro-displacement monitoring terminal returns ACK1, and inquires whether the data processing platform receives the return information, if so, the data processing platform issues an instruction to the micro-displacement monitoring terminal to end, and step 4 is executed; if not, the data processing platform issues the instruction again; ACK1 refers to an acknowledgement packet that the server replies to the device after receiving the data;
step 4, the micro-displacement monitoring terminal starts to measure the distance;
step 5, after the micro-displacement monitoring terminal finishes ranging, uploading the data to a data processing platform, and if the data processing platform receives the uploaded data, executing step 6; if the data processing platform does not receive the uploaded data, the micro-displacement monitoring terminal is informed to upload the data again;
step 6, the data processing platform returns ACK2, and inquires whether the micro-displacement monitoring terminal receives the return information, if so, the data uploading is finished; if not, the micro-displacement monitoring terminal uploads the data again; ACK2 refers to an acknowledgement packet that the server replies to the device after receiving the data;
and 7, the data processing platform calculates the distance and performs comparison prompt according to the uploaded data.
Further, the issuing of the monitoring command in the first step is specifically to collect time data of the T1, T4 and T5 micro-displacement monitoring terminals in the figure.
The beneficial effect of this application does:
1. this application adopts ultra wide band location technique, does not use extra synchronous network and positioning accuracy height, can learn the displacement volume a little through the coordinate difference value of calculating the location, and this device degree of automation is high simultaneously, is fit for field usage, has avoided setting up circuit increase monitoring cost.
2. Based on the electromagnetic field and the microwave principle, the Ultra Wide Band (UWB), the Bluetooth (BT), the accelerometer and other various positioning technologies are integrated to realize high-precision distance measurement and displacement monitoring. Meanwhile, the system integrates wireless data transmission, monitors information such as distances, positions, networks, battery states and the like of all users in the system in real time, and provides an alarm function rapidly and timely. The data can be checked in real time through a computer or a mobile phone, and the data is convenient and quick; and the data can be uploaded to a designated server in an encryption mode, so that the method is stable and reliable.
3. The system has the advantages of high measurement precision close to the traditional optical mode, high monitoring frequency, high precision, low power consumption, real-time checking and alarming and the like. The electromagnetic wave can penetrate and diffract common nonmetal shields (flowers, plants, trees, nets and the like) and is not influenced by severe weather (haze, rain, snow and sand dust), so that the electromagnetic wave shielding device has obvious advantages.
Drawings
Fig. 1 is a schematic structural diagram of the system of the present application.
Fig. 2 is a signal processing flow chart of the present application.
Fig. 3 is a schematic diagram of the principle of calculating the current position information of the ultra-wideband positioning base station.
The method comprises the following steps of 1-ultra wide band positioning base station, 2-ultra wide band positioning base station, 3-data processing platform, 4-display terminal and 5-pipeline installation package. The ultra-wideband positioning base station is installed at a geological stable position, the ultra-wideband positioning base station and the pipeline installation package are fixed on an oil and gas pipeline to be monitored, and the ultra-wideband positioning base station and the pipeline installation package are in three-point real-time data communication, control and upload to the data processing platform.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. 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 application.
As shown in fig. 1, the oil and gas pipeline micro-displacement monitoring system comprises a data processing platform 3, a micro-displacement monitoring terminal and a pipeline installation package 5; the pipeline installation package 5 is connected with a micro-displacement monitoring terminal, the micro-displacement monitoring terminal is communicated with each other by adopting ultra-wideband wireless signals, and the data processing platform 3 is connected with the micro-displacement monitoring terminal through communication signals (4G, 5G and satellite signals);
the micro-displacement monitoring terminal is divided into at least one ultra wide band positioning base station 2 which is positioned at a monitoring displacement point and fixed on an oil and gas pipeline and at least two ultra wide band positioning base stations 1 which are fixed at different geological stable points, three positioning base stations form a three-dimensional space, the ultra wide band positioning base station 2 and the ultra wide band positioning base station 1 are connected with each other through ultra wide band wireless signals, and the ultra wide band positioning base station 2 and the ultra wide band positioning base station 1 respectively comprise an instruction sending unit, an acquisition recording unit, a distance calculating unit and a comparison prompting unit;
an instruction transmitting unit: the system is used for sending instructions to the ultra-wideband positioning base station 2, the ultra-wideband positioning base station 1 or/and the data processing platform 3; the ultra-wideband positioning base station 2 sends instructions to the ultra-wideband positioning base station 1 and the data processing platform 3 through a mobile network, and the ultra-wideband positioning base station 1 sends instructions to the ultra-wideband positioning base station 2, the ultra-wideband positioning base station 1 and the data processing platform 3 through the mobile network; the data processing platform 3 sends a detection instruction to the ultra-wideband positioning base station 1 to activate the ultra-wideband positioning base station 1, and the ultra-wideband positioning base station 1 sends an ultra-wideband signal to the ultra-wideband positioning base station 2 located at the monitoring displacement point.
The acquisition and recording unit: after the ultra-wideband positioning base station 2 at the monitoring displacement point receives periodic ultra-wideband signals sent by the ultra-wideband positioning base stations 1 in two different directions, the acquisition and recording unit acquires and records direct distances a and b between the two ultra-wideband positioning base stations 1 and the ultra-wideband positioning base station 2 respectively; and acquiring and recording the distance d between the two ultra-wideband positioning base stations 1.
A distance calculating unit for calculating the direct distances a and b between the two UWB positioning base stations and the UWB positioning base station and the distance d between the two UWB positioning base stations according to the recordsCurrent position information of the positioning base station; the distance calculation unit calculates the position information of the current monitoring displacement point by recording the data information
Figure RE-DEST_PATH_IMAGE003
X is calculated and then uploaded to a data processing platform for post-processing; wherein a is1And a2A value representing the distance a of two adjacent calculations, b1And b2A numerical value representing the distance b of two adjacent calculations.
As shown in fig. 3, a specific method for calculating the current location information of the ultra-wideband positioning base station is the following time difference algorithm: each micro-displacement monitoring terminal generates an independent time shaft from the start, a T1 of an instruction sending unit of an ultra-wide band positioning base station (namely, a terminal A in figure 3) on a time stamp thereof transmits a pulse signal with a request property (forming the time shaft of the terminal A in figure 3), the ultra-wide band positioning base station (namely, a terminal B in figure 2) receives the pulse signal at a T2 moment and transmits a signal with a response property (forming the time shaft of the terminal B in figure 3) at a T3 moment, the ultra-wide band positioning base station receives the signal at a time stamp T4 moment (forming the time shaft of the terminal A in figure 3), and the ultra-wide band positioning base station transmits a request signal T5 (forming the time shaft of the terminal A in figure 3) to the ultra-wide band positioning base station at the moment and sequentially; therefore, the flight time of the pulse signal between the two modules can be calculated, and the flight distance S is determined; s = c [ (T4-T1)/2- (T5-T4)/2] (c is the speed of light) calculates the current position information of the monitor displacement point.
After 3 micro-displacement terminals measure distance mutually, a 2D coordinate system can be obtained, and then a micro-displacement terminal is added to enable positioning to be more accurate and increase dimensionality to 3D; at the moment, the initial coordinates of the monitoring point (one of the 4 micro-displacement terminals) are obtained through the time difference algorithm, after the micro-displacement distance is obtained through the time difference algorithm, the brand new coordinates of the point are calculated, and the coordinates of the other three points are regarded as unchanged.
The monitoring displacement point receives ultra wide band signals sent by at least two positioning base stations in different directions, and direct distances a and b between the two positioning base stations and the monitoring displacement point base station are collected and recorded according to the ultra wide band signals periodically sent by the positioning base stations. If 3 positioning base stations are arranged, three-layer superposition of data acquisition can be realized, so that the reliability of a calculation result is higher, and the calculation is more accurate.
In the invention, the ultra-wideband positioning base station 2 and the two ultra-wideband positioning base stations 1 are triangular in position relation, and form a three-dimensional network to acquire self three-dimensional geographic information. Three-dimensional micro-displacement values can be objectively presented and calculated.
The comparison prompting unit is used for comparing the current position information of the monitoring displacement point with the initial record information by the ultra-wideband positioning base station 2, calculating whether the monitoring displacement point is displaced or not, and performing corresponding prompting; the method can also be used for setting the safety range of the deformation of the pipeline, acquiring the initial monitoring position information, comparing the current position information and calculating whether the pipeline is in the safety deformation range.
The ultra-wideband positioning base station 2 and the ultra-wideband positioning base station 1 are distributed on three points to form a three-dimensional space, one point is fixed at a place to be monitored, and the other two points are used for fixing original coordinates at a geological stable position. The ultra-wideband positioning base station 2 and the ultra-wideband positioning base station 1 receive the instruction of the data processing platform 3, so that ultra-wideband wireless signals are mutually utilized to carry out communication (an instruction sending unit), the spatial position (a distance calculating unit and a comparison prompting unit) is calculated, process data (a collecting and recording unit) is respectively recorded, and finally the process data are transmitted back to the data processing platform 3.
Data processing platform 3 is the server, the server is located the high in the clouds, data processing platform 3 links to each other with 4 signals of display terminal, data processing platform 3 includes: the device comprises an equipment management module and a displacement and settlement monitoring module;
the equipment management module describes detailed information of the machine equipment, and the detailed information comprises equipment electric quantity, equipment conditions (whether the machine equipment is normal or incapable of running and the like), offset conditions, positioning coordinates and the like.
And the displacement and settlement monitoring module is used for monitoring the detailed displacement data of the monitoring displacement point, setting a reference point according to needs, and displaying an initial measured value, a last measured value, a current measured value, an accumulated variation and an additional state in a remark column. And calculating the displacement information sent by the micro-displacement monitoring terminal.
The above two modules are provided as support by a computer readable storage medium and a computer program product. The storage medium is characterized by storing a computer program for electronic data exchange, wherein the computer program contained therein causes a computer to execute data supplied from a data acquisition side. The computer program product includes a non-transitory computer readable storage medium storing a computer program operable to cause a computer to execute data provided by a data acquisition side.
In the implementation of the present invention, the communication connection may be sent through a wireless communication network, and the micro-displacement monitoring terminal may have its own wired or wireless communication device, for example, sending the detection instruction through a 2G, 3G, 4G, 5G or satellite network; preferably, the detection instruction is sent through 4G, 5G or a satellite, so that the sending efficiency is improved; ultra-wideband (UWB) has a high requirement for the bandwidth of the waveform generated by the transmitter, so the most common way is to use a pulse signal as the signal waveform of the radar or communication system, and the frequency of the pulse signal is inversely proportional to the pulse width according to fourier transform, so that the operating frequency of the ultra-wideband system can be adjusted by adjusting the time domain waveform of the pulse signal.
An absolute bandwidth of approximately 1GHz may be achieved, so ultra-wideband systems may also be referred to as impulse systems, transient systems, etc. The ultra-wideband technology is a novel wireless communication technology and has the advantages of low system complexity, low interception capability, insensitive channel fading, millimeter-level positioning accuracy and the like.
Early warning and warning information module: after long-time data acquisition and learning, the obtained big data is utilized to realize the prompting of displacement monitoring, settlement monitoring and deep monitoring conditions.
A monitoring report module: the summary of displacement monitoring and settlement monitoring conditions can also be used for exporting records, so that the records are convenient to store and view.
Further, the pipeline installation package 5 and the micro-displacement monitoring terminal are bound and locked with each other, and the pipeline installation package 5 is an anchor ear type installation structure, a wearable type installation structure or a sleeve type installation structure;
the hoop type mounting structure utilizes the U-shaped hoop lock catch to fix the micro-displacement monitoring terminal on the mounting rod. The mode is flexible to install and convenient to detach, and is suitable for being arranged on a side slope.
Wearable mounting structure includes ranging module, wearable base, high strength fastening area, and ranging module passes through the screw thread installation with the wearable, and the wearable passes through the high strength fastening area and passes the mounting hole and fix with the pipeline. The module is tightly attached to the pipe wall, is flexible to mount and convenient to dismount, and is suitable for being arranged at the middle positions of the hoisting pipeline and the foundation pit.
The sleeve type mounting structure comprises a distance measuring module, an extension rod and a sleeve type base; the extension rod and the sleeve type base are of a full steel structure, the extension rod base is welded on the upper half ring of the sleeve, the extension rod is connected with the upper half ring sleeve through threads, and the upper half ring and the lower half ring of the sleeve are fixed through M12 stainless steel bolts. The width of the sleeve is 500mm, the specification of the extension rod is phi 108 x 4 x 800mm, and the number of the extension rods is set according to the installation height on site. The installation mode is suitable for being arranged at monitoring points at the foundation pit and monitoring points at two ends of a hoisting pipeline.
As shown in fig. 2, the oil and gas pipeline micro-displacement monitoring system works according to the following principle:
step 1, a data processing platform 3 issues a monitoring instruction to a micro-displacement monitoring terminal;
step 2, if the micro-displacement monitoring terminal receives the instruction, executing step 3; if the micro-displacement monitoring terminal does not receive the instruction, the micro-displacement monitoring terminal informs the data processing platform 3 and the data processing platform 3 issues the instruction again;
step 3, the micro displacement monitoring terminal returns ACK1, and inquires whether the data processing platform 3 receives the return information, if so, the data processing platform 3 issues an instruction to the micro displacement monitoring terminal to end, and step 4 is executed; if not, the data processing platform 3 issues the instruction again; ACK1 refers to an acknowledgement packet that the server replies to the device after receiving the data;
step 4, the micro-displacement monitoring terminal starts to measure the distance;
step 5, after the micro-displacement monitoring terminal finishes ranging, uploading the data to the data processing platform 3, and if the data processing platform 3 receives the uploaded data, executing step 6; if the data processing platform 3 does not receive the uploaded data, the micro-displacement monitoring terminal is informed to upload the data again;
step 6, the data processing platform 3 returns an ACK2, and inquires whether the micro-displacement monitoring terminal receives the return information, if so, the data uploading is finished; if not, the micro-displacement monitoring terminal uploads the data again; ACK2 refers to an acknowledgement packet that the server replies to the device after receiving the data;
and 7, the data processing platform 3 performs distance calculation and comparison prompt on the uploaded data.
Further, the issuing of the monitoring command in the first step is specifically to collect time data of the T1, T4 and T5 micro-displacement monitoring terminals in the figure.
This application adopts ultra wide band location technique, does not use extra synchronous network and positioning accuracy height, can learn the displacement volume a little through the coordinate difference value of calculating the location, and this device degree of automation is high simultaneously, is fit for field usage, has avoided setting up circuit increase monitoring cost.
Based on the electromagnetic field and the microwave principle, the Ultra Wide Band (UWB), the Bluetooth (BT), the accelerometer and other various positioning technologies are integrated to realize high-precision distance measurement and displacement monitoring. Meanwhile, the system integrates wireless data transmission, monitors information such as distances, positions, networks, battery states and the like of all users in the system in real time, and provides an alarm function rapidly and timely. The data can be checked in real time through a computer or a mobile phone, and the data is convenient and quick; and the data can be uploaded to a designated server in an encryption mode, so that the method is stable and reliable.
The system has the advantages of high measurement precision close to the traditional optical mode, high monitoring frequency, high precision, low power consumption, real-time checking and alarming and the like. The electromagnetic wave can penetrate and diffract common nonmetal shields (flowers, plants, trees, nets and the like) and is not influenced by severe weather (haze, rain, snow and sand dust), so that the electromagnetic wave shielding device has obvious advantages.

Claims (10)

1. The utility model provides an oil gas pipeline micro displacement monitoring system which characterized in that: the system comprises a data processing platform (3), a micro-displacement monitoring terminal and a pipeline installation package (5); the pipeline installation package (5) is connected with the micro-displacement monitoring terminals, the micro-displacement monitoring terminals are mutually connected by ultra-wideband wireless signals in communication, and the data processing platform (3) is connected with the micro-displacement monitoring terminals through communication signals;
the micro-displacement monitoring terminal is divided into at least one ultra wide band positioning base station (2) which is positioned at a monitoring displacement point and fixed on an oil and gas pipeline and at least two ultra wide band positioning base stations (1) which are fixed at different geological stable points, three positioning base stations form a three-dimensional space, the ultra wide band positioning base stations (2) are connected with the ultra wide band positioning base stations (1) through ultra wide band wireless signals, and the ultra wide band positioning base stations (2) and the ultra wide band positioning base stations (1) respectively comprise an instruction sending unit, an acquisition recording unit, a distance calculating unit and a comparison prompting unit;
an instruction transmitting unit: the system is used for sending instructions to the ultra-wideband positioning base station (2), the ultra-wideband positioning base station (1) or/and the data processing platform (3); the ultra-wideband positioning base station (2) sends instructions to the ultra-wideband positioning base station (1) and the data processing platform (3) through a mobile network, and the ultra-wideband positioning base station (1) sends instructions to the ultra-wideband positioning base station (2), the ultra-wideband positioning base station (1) and the data processing platform (3) through the mobile network; the data processing platform (3) sends a detection instruction to the ultra-wideband positioning base station (1) to activate the ultra-wideband positioning base station (1), and the ultra-wideband positioning base station (1) sends an ultra-wideband signal to the ultra-wideband positioning base station (2) at the monitoring displacement point;
the acquisition and recording unit: after the ultra-wideband positioning base station (2) at the monitoring displacement point receives periodic ultra-wideband signals sent by the ultra-wideband positioning base stations (1) at two different directions, the acquisition and recording unit acquires and records direct distances a and b between the two ultra-wideband positioning base stations (1) and the ultra-wideband positioning base station (2) respectively; collecting and recording the distance d between two ultra-wideband positioning base stations (1);
the distance calculation unit is used for calculating the current position information of the ultra-wideband positioning base station according to the recorded direct distances a and b between the two ultra-wideband positioning base stations and the ultra-wideband positioning base station and the recorded distance d between the two ultra-wideband positioning base stations;
the comparison prompting unit is used for comparing the current position information of the monitoring displacement point with the initial record information by the ultra-wideband positioning base station (2), calculating whether the monitoring displacement point is displaced or not, and performing corresponding prompting; the method can also be used for setting the safety range of the deformation of the pipeline, acquiring the initial monitoring position information, comparing the current position information and calculating whether the pipeline is in the safety deformation range.
2. The oil and gas pipeline micro-displacement monitoring system of claim 1, characterized in that: the distance calculation unit calculates the position information of the current monitoring displacement point by recording the data information
Figure DEST_PATH_IMAGE002
X is calculated and then uploaded to a data processing platform for post-processing; wherein a is1And a2A value representing the distance a of two adjacent calculations, b1And b2A numerical value representing the distance b of two adjacent calculations.
3. The oil and gas pipeline micro-displacement monitoring system of claim 2, characterized in that: the specific method for calculating the current position information of the ultra-wideband positioning base station (2) comprises the following steps: each micro-displacement monitoring terminal generates an independent time axis from the start, an instruction sending unit of the ultra-wide band positioning base station (1) transmits a pulse signal with a request property at T1 on a time stamp of the ultra-wide band positioning base station, the ultra-wide band positioning base station (2) receives the pulse signal at the time of T2 and transmits a signal with a response property at the time of T3, the ultra-wide band positioning base station (1) receives the pulse signal at the time of the time stamp of T4, and the ultra-wide band positioning base station (1) transmits a request signal T5 to the ultra-wide band positioning base station (2) and sequentially records in a circulating manner; therefore, the flight time of the pulse signal between the two modules can be calculated, and the flight distance S is determined; s = c [ (T4-T1)/2- (T5-T4)/2] (c is the speed of light) calculates the current position information of the monitor displacement point.
4. The oil and gas pipeline micro-displacement monitoring system of claim 1, characterized in that: the data processing platform (3) is a server, the server is located at the high in the clouds, the data processing platform (3) is connected with a display terminal (4) through signals, and the data processing platform (3) comprises: the device comprises an equipment management module, a displacement and settlement monitoring module, an early warning and warning information module and a monitoring report module;
the equipment management module is used for describing detailed information of the machine equipment, wherein the detailed information comprises equipment electric quantity, equipment condition, offset condition and positioning coordinates;
the displacement and settlement monitoring module is used for monitoring the detailed displacement data of the monitored displacement point, setting a reference point as required and calculating displacement information sent by the micro-displacement monitoring terminal;
early warning and warning information module: after long-time data acquisition and learning, prompting displacement monitoring, settlement monitoring and deep monitoring conditions by using the obtained big data;
a monitoring report module: the summary of displacement monitoring and settlement monitoring conditions can also be used for exporting records, so that the records are convenient to store and view.
5. The oil and gas pipeline micro-displacement monitoring system of claim 1, characterized in that: the pipeline installation package (5) is bound with the micro-displacement monitoring terminal, and the pipeline installation package (5) is of a hoop type installation structure, a wearable type installation structure or a sleeve type installation structure.
6. The oil and gas pipeline micro-displacement monitoring system of claim 5, characterized in that: the hoop type mounting structure utilizes the U-shaped hoop lock catch to fix the micro-displacement monitoring terminal on the mounting rod.
7. The oil and gas pipeline micro-displacement monitoring system of claim 5, characterized in that: wearable mounting structure includes ranging module, wearable base, high strength fastening area, and ranging module passes through the screw thread installation with the wearable, and the wearable passes through the high strength fastening area and passes the mounting hole and fix with the pipeline.
8. The oil and gas pipeline micro-displacement monitoring system of claim 5, characterized in that: the sleeve type mounting structure comprises a distance measuring module, an extension rod and a sleeve type base; the upper half ring of the sleeve is welded with an extension rod base, the extension rod and the upper half ring of the sleeve are connected through threads, and the upper half ring of the sleeve and the lower half ring of the sleeve are fixed through bolts.
9. The oil and gas pipeline micro-displacement monitoring system of claim 1, characterized in that: the working principle of the oil and gas pipeline micro-displacement monitoring system is as follows:
step 1, a data processing platform (3) issues a monitoring instruction to a micro-displacement monitoring terminal;
step 2, if the micro-displacement monitoring terminal receives the instruction, executing step 3; if the micro-displacement monitoring terminal does not receive the instruction, the micro-displacement monitoring terminal informs the data processing platform (3) and the data processing platform (3) issues the instruction again;
step 3, the micro-displacement monitoring terminal returns ACK1, and inquires whether the data processing platform (3) receives the return information, if so, the data processing platform (3) issues an instruction to the micro-displacement monitoring terminal to end, and step 4 is executed; if not, the data processing platform (3) re-issues the instruction; ACK1 refers to an acknowledgement packet that the server replies to the device after receiving the data;
step 4, the micro-displacement monitoring terminal starts to measure the distance;
step 5, after the micro-displacement monitoring terminal finishes ranging, uploading the data to the data processing platform (3), and if the data processing platform (3) receives the uploaded data, executing step 6; if the data processing platform (3) does not receive the uploaded data, the micro-displacement monitoring terminal is informed to upload the data again;
step 6, the data processing platform (3) returns ACK2, and inquires whether the micro-displacement monitoring terminal receives the return information, if so, the data uploading is finished; if not, the micro-displacement monitoring terminal uploads the data again; ACK2 refers to an acknowledgement packet that the server replies to the device after receiving the data;
and 7, the data processing platform (3) calculates the distance of the uploaded data and performs comparison prompt.
10. The oil and gas pipeline micro-displacement monitoring system of claim 1, characterized in that: the step 1 of issuing the monitoring instruction is to collect time data of the micro-displacement monitoring terminal.
CN202011536510.2A 2020-12-23 2020-12-23 Oil gas pipeline micro-displacement monitoring system Pending CN112503401A (en)

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