CN113850514A - Oil-gas pipeline inspection method and system based on constellation remote sensing technology - Google Patents
Oil-gas pipeline inspection method and system based on constellation remote sensing technology Download PDFInfo
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Abstract
The invention provides an oil-gas pipeline inspection method and system based on a constellation remote sensing technology, wherein the method comprises the following steps: the satellite ground system receives the inspection task information of the oil and gas pipeline; the satellite ground system dispatches a satellite through the patrol task information to perform remote sensing operation on the oil-gas pipeline according to preset patrol frequency and acquire remote sensing data; carrying out data processing analysis on the remote sensing data; and obtaining an analysis result to form a routing inspection report. According to the invention, satellite remote sensing and analysis are carried out on the position of the oil and gas pipeline through the satellite, the whole-process quick coverage of the long-distance pipeline can be realized, the inspection frequency can be shortened to the satellite revisit time, the accuracy of inspection abnormity identification is improved by comprehensively studying and judging through various sensors of the satellite such as visible light, infrared and radar, and the automatic studying and judging of the oil and gas pipeline abnormity is realized based on the data analysis of multi-source sensing.
Description
Technical Field
The invention particularly relates to an oil-gas pipeline inspection method and system based on a constellation remote sensing technology.
Background
At present, patrolling and examining to oil gas pipeline mainly is that the manual type looks at and patrols and examines, and individual unit begins to explore and patrols the line with the help of unmanned aerial vehicle's mode, patrols line unmanned aerial vehicle and equips the digital signal that high definition digital camera will gather and compress, passes back ground system and shows, discerns by manual work or AI with unmanned aerial vehicle's control.
For example: the invention relates to a Chinese patent application CN201710748305.4, in particular to a management platform for patrolling and repairing an oil and gas transmission pipeline based on data acquisition of an unmanned aerial vehicle and a network communication technology, which acquires data through the unmanned aerial vehicle and the network communication technology so as to patrol the gas transmission pipeline.
However, the following problems exist in the acquisition by the unmanned aerial vehicle: the voyage of unmanned aerial vehicle receives communication distance and self energy constraint, leads to still needing operating personnel near unmanned aerial vehicle operation, commander, can further shorten the voyage when there is the topography that the signal sheltered from in special areas such as mountain area. Due to the mode of operation, the polling frequency is affected. In addition, because unmanned aerial vehicle is the high definition camera more, can only carry out analysis and study and judge to the visible light image, the information is less, and is not enough to the analytical ability of oil spilling, needs the manual work to distinguish.
Therefore, there is a need for a method and system for oil and gas pipeline inspection that is fast, multi-hand identifiable, and highly accurate.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, the present invention is directed to solving the problems of the prior art, such as low efficiency and insufficient accuracy of the oil-gas line inspection.
In order to achieve the above objects and other related objects, the present invention provides an oil and gas pipeline inspection method based on constellation remote sensing technology, comprising the following steps: acquiring inspection task information of an oil-gas pipeline; scheduling a satellite based on the inspection task information to perform remote sensing operation on the oil-gas pipeline according to a preset inspection frequency and an inspection place and acquire remote sensing data; wherein: the remote sensing data comprises data detected by utilizing visible light, infrared rays, hyperspectrum and an INSAR radar; carrying out data processing analysis on the remote sensing data; and obtaining an analysis result.
Further, the patrol task information includes: pipeline space information, inspection frequency and inspection content information.
The technical effects of the embodiment are as follows: the satellite ground system can dispatch the satellite to carry out remote sensing operation on the oil-gas pipeline and acquire remote sensing data according to the preset polling frequency through the pipeline space information, the polling frequency and the polling content information.
Further, the analysis result includes: whether the oil and gas pipeline leaks, whether the ground environment that the oil and gas pipeline is located takes place the earth's surface and subsides or the earth's surface warp, whether the ground environment of oil and gas pipeline has the third party construction.
The technical effects of the embodiment are as follows: through inciting somebody to action remote sensing data carry out data processing analysis and can judge whether the oil gas pipeline leaks whether the ground environment that the oil gas pipeline was located takes place the earth's surface and subsides or the earth's surface warp, whether there is the third party construction in the ground environment of oil gas pipeline.
Furthermore, the dispatching satellite based on the patrol task information performs remote sensing operation on the oil-gas pipeline according to a preset patrol frequency and acquires remote sensing data comprises the following steps: and acquiring remote sensing data of the surrounding environment of the oil-gas pipeline by utilizing hyperspectral and/or infrared and/or INSAR radar sensing technology on the satellite so as to judge whether the oil-gas pipeline leaks.
The technical effects of the embodiment are as follows: through utilizing perception technique on the satellite acquires the remote sensing data of oil gas pipeline is used for judging whether oil gas pipeline leaks and can let the result of patrolling and examining more accurate and high-efficient.
Furthermore, the dispatching satellite based on the patrol task information performs remote sensing operation on the oil-gas pipeline according to a preset patrol frequency and acquires remote sensing data comprises the following steps: utilize radar identification technology on the satellite acquires oil gas pipeline's ground environment data for judge whether the ground environment that oil gas pipeline was located takes place earth's surface settlement or earth's surface deformation.
The technical effects of the embodiment are as follows: through utilizing radar perception technique on the satellite acquires the ground elevation data of oil gas pipeline is used for judging whether the ground environment that oil gas pipeline was located takes place the earth's surface and subsides or the earth's surface warp, can let the result of patrolling and examining more accurate and high-efficient.
Furthermore, the dispatching satellite based on the patrol task information performs remote sensing operation on the oil-gas pipeline according to a preset patrol frequency and acquires remote sensing data comprises the following steps: and acquiring remote sensing data around the oil and gas pipeline by using visible light and/or infrared rays and/or an INSAR radar sensing technology on the satellite so as to judge whether third-party construction exists in the ground environment of the oil and gas pipeline.
The technical effects of the embodiment are as follows: through utilizing visible light and/or infrared ray and/or INSAR radar perception technique on the satellite acquire the peripheral remote sensing data of oil gas pipeline is used for judging whether there is third party's construction in the ground environment of oil gas pipeline, can let the result of patrolling and examining more accurate and high-efficient.
Further, the performing data processing analysis on the remote sensing data comprises: and carrying out data processing analysis on the remote sensing data through a data processing system on the satellite and/or a data processing system of the satellite ground system.
The technical effects of the embodiment are as follows: on the one hand, the data processing system on the satellite can be used for carrying out data processing analysis on the remote sensing data, on the other hand, the data processing system of the satellite ground system can be used for carrying out data processing analysis on the remote sensing data, and the data processing system on the satellite and the data processing system of the satellite ground system can be used for carrying out data processing analysis on the remote sensing data, so that more choices for data processing are available, the convenience of data processing is improved, the data processing is more efficient and accurate, and the inspection result is more accurate and efficient.
Furthermore, the invention also provides an oil-gas pipeline inspection system based on the constellation remote sensing technology, which comprises: the task management module is used for defining the polling task, generating polling task information and informing the satellite ground system of the polling task information; the preprocessing module is used for judging the quality of remote sensing data on a satellite; the data processing module is used for carrying out data filtering and data analysis on the remote sensing data; and the analysis result acquisition module is used for acquiring an analysis result.
The technical effects of the embodiment are as follows: the system utilizes the satellite to inspect the oil-gas pipeline, so that the efficiency and the accuracy of inspection results can be improved.
Further, the analysis result includes: whether the oil and gas pipeline leaks, whether the ground environment that the oil and gas pipeline is located takes place the earth's surface and subsides or the earth's surface warp, whether the ground environment of oil and gas pipeline has the third party construction.
The technical effects of the embodiment are as follows: through inciting somebody to action remote sensing data carry out data processing analysis and can judge whether the oil gas pipeline leaks whether the ground environment that the oil gas pipeline was located takes place the earth's surface and subsides or the earth's surface warp, whether there is the third party construction in the ground environment of oil gas pipeline.
The invention also provides a computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the above-mentioned method.
As mentioned above, the oil-gas pipeline inspection method and system based on the constellation remote sensing technology have the following beneficial effects: the oil and gas pipelines are inspected by the satellite, so that the whole-process quick coverage of the long-distance pipeline can be realized, and the inspection frequency can be shortened to the satellite revisit time; the comprehensive research and judgment can be carried out by utilizing various sensors of visible light, infrared, multispectral, radar and the like of the satellite, so that the identification accuracy is improved; the image analysis technology based on multi-source perception realizes automatic study and judgment of pipeline abnormity.
Drawings
FIG. 1 is a schematic diagram illustrating the steps of a method according to an embodiment of the present invention;
fig. 2 is a schematic diagram showing the information content of the inspection task according to the embodiment of the present invention;
FIG. 3 is a schematic diagram illustrating the content of the analysis result according to the embodiment of the present invention;
FIG. 4 is a diagram illustrating remote sensing operation according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a system according to an embodiment of the present invention.
Description of reference numerals: 1-inspection task information, 11-position information, 12-inspection frequency, 13-inspection content information, 2-analysis result, 21-leakage, 22-surface sedimentation or deformation, 23-existence of third-party construction, 4-system, 41-receiving module, 42-scheduling module, 43-data processing module and 44-analysis result acquisition module.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.
Referring to fig. 1, the present invention provides an oil and gas pipeline inspection method based on constellation remote sensing technology, which includes the following steps: s101, acquiring inspection task information 1 of an oil-gas pipeline; s102, scheduling a satellite based on the inspection task information 1 to perform remote sensing operation on the oil-gas pipeline according to a preset inspection frequency 12 and obtain remote sensing data; s103, performing data processing analysis on the remote sensing data; and S104, obtaining an analysis result 2.
The more specific implementation details of the embodiment are as follows: the owner unit of oil and gas pipeline submits information such as spatial information, inspection frequency 12 of pipeline to satellite ground system, satellite ground system patrols and examines the task according to patrolling and examining frequency 12 and pipeline coordinate planning, and upload the satellite that corresponds with the task, when the satellite is over the top, carry out the remote sensing operation to oil and gas pipeline, acquire the remote sensing data, wherein include visible light, infrared ray, hyperspectral and INSAR's data, after the ground is uploaded on the star or down, carry out data analysis, confirm the position of leaking, geological disasters, earth's surface change, thereby reach the effect of patrolling and examining.
The noun explains: constellation remote sensing, a satellite constellation is a set of satellites capable of normally working in launching and orbit, and is generally a satellite network formed by a plurality of satellite rings configured in a certain mode. The main satellite constellations include a GPS satellite constellation, a GLONASS satellite constellation, a Galileo satellite constellation, a Beidou satellite constellation and the like. The satellite is used for completing tasks including global communication, global navigation, global environment monitoring and the like in bipolar areas, and any place on the earth can be covered by the satellite at any time. To do this, it is not enough to use a single satellite or a satellite ring, and several satellite rings need to be configured in a certain way to form a satellite network, i.e. a constellation. The satellite constellation can be applied to a satellite navigation positioning system, and can provide speed, attitude and time information of a carrier in real time. The satellite constellation can be used for global communication, plays the role of a transfer station and transfers communication information. The satellite constellation can also be used for global environment monitoring, and global environment conditions are monitored by remotely sensing global earth surface information.
The noun explains: infrared (IR), which is an electromagnetic wave having a frequency between microwave and visible light, is a generic term for radiation having a frequency of 0.3THz to 400THz in the electromagnetic spectrum, corresponding to a wavelength of 1mm to 750nm in vacuum. It is invisible light with a lower frequency than red light. The english name for Infrared is Infrared, where infra-means "below, at …". In physics, all substances above absolute zero (0K, i.e., -273.15 ℃) can produce infrared (and other types of electromagnetic waves). Modern physics refer to blackbody radiation (thermal radiation). Medical infrared rays can be divided into two categories: near infrared rays and far infrared rays. The infrared ray has a thermal effect, can generate a resonance phenomenon with most molecules, converts light energy (energy of electromagnetic waves) into molecular internal energy (heat energy), and the solar heat is mainly transmitted to the earth through the infrared ray. In the electromagnetic spectrum, radiation which is outside the red light, has a lower frequency than visible light, and is higher than microwaves is called infrared light (radiation which is outside the violet light, has a higher frequency than visible light, and is lower than X-rays is called ultraviolet light), and infrared light is invisible to the naked eye and is invisible to the naked eye.
The noun explains: the hyperspectral imaging technology is based on image data technology of a plurality of narrow wave bands, combines the imaging technology with the spectrum technology, detects two-dimensional geometric space and one-dimensional spectral information of a target, and acquires continuous and narrow wave band image data with hyperspectral resolution. At present, the hyperspectral imaging technology is developed rapidly, and the hyperspectral imaging technology commonly comprises grating light splitting, acousto-optic tunable filtering light splitting, prism light splitting, chip coating and the like. Can be applied to the fields of food safety, medical diagnosis, aerospace and the like. The hyperspectral image is finely divided in the spectral dimension, and not only is the difference of the traditional black, white or R, G, B, but also has N channels in the spectral dimension, for example: we can divide 400nm-1000nm into 300 channels. Therefore, the hyperspectral equipment acquires a data cube, the data cube has image information and is expanded in spectral dimension, and as a result, not only can the spectral data of each point on the image be acquired, but also the image information of any spectral band can be acquired. The hyperspectral imaging technology is based on image data technology of a plurality of narrow wave bands, combines the imaging technology with the spectrum technology, detects two-dimensional geometric space and one-dimensional spectral information of a target, and acquires continuous and narrow wave band image data with hyperspectral resolution. At present, the hyperspectral imaging technology is developed rapidly, and the hyperspectral imaging technology commonly comprises grating light splitting, acousto-optic tunable filtering light splitting, prism light splitting, chip coating and the like. The hyperspectral remote sensing is to obtain space and spectrum data of a ground object target by detecting electromagnetic waves reflected by an object through a hyperspectral sensor, and the spectroscopy which is based on the early 20 th century is the foundation of the hyperspectral remote sensing. The appearance of hyperspectral remote sensing enables many objects which cannot be detected by using a wide band to be detected more easily, so that the success of hyperspectral remote sensing is revolutionary.
The noun explains: synthetic Aperture radar (sar), an active earth observation system, can be installed on flight platforms such as airplanes, satellites, spacecraft, etc., and can perform earth observation all day long and all day long, and has a certain ground surface penetration capability. Therefore, the SAR system has unique advantages in disaster monitoring, environmental monitoring, marine monitoring, resource exploration, crop estimation, mapping, military and other applications, and can play a role that other remote sensing means are difficult to play, so that the SAR system is more and more paid attention by countries in the world. Synthetic Aperture Radar (Synthetic Aperture Radar) realizes high-resolution microwave imaging by utilizing a Synthetic Aperture principle, and has various characteristics of all-time, all-weather, high resolution, large breadth and the like. Synthetic aperture radars are divided into two categories, focused and unfocused. The former has good azimuth resolution, no relation with target distance, large coverage area, fast mapping speed, but complex equipment. The latter azimuth resolution is proportional to the square root of the wavelength and distance, and the resulting antenna length has one of the largest possible values. The synthetic aperture radar is mainly an airborne platform and a satellite-borne platform at first, along with the development of the technology, the synthetic aperture radar carried by various types of platforms such as missile-borne, foundation SAR, unmanned aerial vehicle SAR, near space platform SAR, handheld equipment and the like appears, and the synthetic aperture radar is widely applied to the fields of military and civil use. The future of SAR may evolve in several directions: multi-frequency, multi-polarization, variable view angle, variable beam; ultra-high resolution, multi-mode; interferometric synthetic aperture radar technology, polarized interferometric synthetic aperture radar technology; moving target detection and moving target imaging technology; small satellite radar technology; SAR calibration techniques. The synthetic aperture radar sequentially transmits electromagnetic waves, and the radar antenna collects, digitizes and stores the reflected echoes for post-processing. As transmission and reception occur at different times, they map to different locations. A well-ordered combination of the received signals creates a virtual aperture that is much longer than the physical antenna length. This is why it is called "synthetic aperture", giving it the property of imaging radar. The range direction is parallel to the flight trajectory, perpendicular to the azimuth direction, also called the along-the-track direction because it coincides with the position of the object within the field of view of the antenna. To produce a SAR image, successive radio pulses are transmitted to "illuminate" the target scene, and echoes of each pulse are received and recorded. Pulses are transmitted and echoes are received using a single beamforming antenna, with wavelengths of a few meters to a few millimeters. Synthetic aperture radars may be mounted on an aircraft or spacecraft with the antenna position relative to the target varying over time. Signal processing of the continuously recorded radar returns allows combined recording from these multiple antenna positions. This process forms the synthetic antenna aperture and allows for the creation of higher resolution images than would otherwise be possible for a given physical antenna. The 3D treatment is done in two steps: the azimuth and direction are focused for generating 2D (azimuth range) high resolution images, after which the phase difference between the complex images is measured using a Digital Elevation Model (DEM), which is determined from the different views to recover the elevation information. This altitude information, along with the azimuth range coordinates provided by the 2-D SAR focusing, gives a third dimension, the elevation direction. The first step requires only standard processing algorithms and for the second step additional pre-processing stages are used, such as image co-registration and phase calibration. The SAR is a coherent imaging radar system with higher resolution, which transmits energy to an object through an antenna and receives the energy through the SAR, all the energy is recorded through electronic equipment, and finally an image is formed. The aperture in the synthetic aperture radar is the length of the antenna, the SAR system forms a synthetic aperture by the forward motion of the satellite or airplane, i.e. a long antenna, and as long as the energy returned by an object can reach the width of the beam emitted by the aperture, the object can form an image and be stored. As with most other radars, synthetic aperture radars determine range by the time difference between the transmission of an electromagnetic pulse and the reception of a target echo, with resolution related to pulse width or pulse duration, with narrower pulse widths giving higher resolution. The SAR improves the range resolution through a pulse compression technology, and is related to the bandwidth of a transmitted signal, and the larger the bandwidth is, the smaller the resolution is; the azimuth resolution is improved through the synthetic aperture technology, the stripe SAR can reach 1/2 of the size of the antenna theoretically, and the resolution of the beam-bunching SAR is smaller. High resolution requires the use of small antennas rather than large antennas and is independent of distance and wavelength. Of course, the antenna aperture may not be infinitely small, subject to other factors. Synthetic aperture radars are usually mounted on aircraft or satellites and are classified into airborne and satellite-borne. The synthetic aperture radar measures distance and images in two dimensions according to the motion track of the platform, and the two-dimensional coordinate information of the synthetic aperture radar is distance information and direction information vertical to the distance. The azimuth resolution is proportional to the beam width and inversely proportional to the antenna size, just as an optical system needs a large lens or mirror to achieve high accuracy, and a radar also needs a large antenna or aperture to obtain a clear image when working at low frequency. Because of the irregular flight path of the aircraft, the variation is large, which can cause image defocusing. Inertial and navigation sensors must be used to compensate for antenna motion while imaging data is repeatedly processed to form autofocus with maximum contrast images. Therefore, synthetic aperture radar imaging must work in a side-looking manner, transmitting coherent signals within a synthetic aperture length, receiving the signals, and performing coherent processing to obtain an electronic mosaic. The brightness of the image pixels formed by the radar is proportional to the energy reflected by the corresponding area on the target area. The total is the radar cross-sectional area, which is expressed in units of area. The degree of backscattering is expressed as normalized radar cross-sectional area in decibels (dB). The typical normalized radar cross-sectional area at the earth's surface is: brightest + 5 dB, darkest-40 dB. Synthetic aperture radars do not resolve details that the human eye and camera can resolve, but operate at wavelengths that allow penetration through clouds and dust.
The noun explains: InSAR: namely synthetic aperture radar interference, is a radar technology applied to mapping and remote sensing. The method is a technology for acquiring the elevation information of the earth surface by utilizing a synthetic aperture radar to carry out coherent processing on two complex value images (images with both amplitude and phase) observed in the same area. The basic principle of the InSAR DEM acquisition technology is that two SAR antennas with interference imaging capacity (or one antenna repeatedly observes) are used for acquiring two single-view complex images with certain visual angle difference in the same region and coherence, and the interference phase information is used for acquiring the elevation information of the earth surface, so that the DEM of the earth surface is reconstructed. The InSAR system can be divided into a dual (multi) antenna system and a single antenna system according to the number of antennas installed on a platform and the difference of data acquisition modes. In the double (multi) antenna system, two (multi) antennas are arranged on an SAR platform, one antenna transmits radar waves to the ground, and the two (multi) antennas simultaneously receive backscattering echoes of the ground, so that two (multi) SLC images of corresponding regions are obtained. By adopting the method, the main image pair and the auxiliary image pair in the same area can be obtained simultaneously, the coherence between the images is good, the interference processing and the application are facilitated, but the hardware technical requirement is high, and the cost is expensive; in the single-antenna system, an antenna is arranged on an SAR platform, and two SLC images with coherence in a measurement area are obtained by observing repeated flight in the same area. This approach results in poor coherence between the images acquired compared to a dual (multi) antenna system, since the terrain conditions and scattering characteristics may have changed due to the time interval between the two images, and it is difficult to guarantee suitable baseline parameters.
Referring to fig. 2, in an embodiment of the present invention, the inspection task information 1 includes: location information 11, patrol frequency 12, and patrol content information 13.
The technical effects of the embodiment are as follows: the satellite ground system can dispatch the satellite to perform remote sensing operation on the oil-gas pipeline according to the preset inspection frequency 12 and acquire remote sensing data through the position information 11, the inspection frequency 12 and the inspection content information 13.
Referring to fig. 3, in an embodiment of the present invention, the analysis result 2 includes: whether the oil and gas pipeline leaks 21, whether the ground environment that the oil and gas pipeline is located takes place the earth's surface and subsides or the earth's surface is out of shape, whether the ground environment of oil and gas pipeline has third party construction 23.
The more specific implementation details of the embodiment are as follows: the medium in the pipeline has unique spectral characteristics, so that whether the leakage of the pipeline medium exists near the pipeline can be known by analyzing the hyperspectral data of remote sensing, and the method can also effectively distinguish the difference between oil and water; the geological disaster inspection refers to a technology of detecting and interfering the echo of a synthetic aperture antenna active radar and recording the elevation of the terrain by using an INSAR technology, and whether the terrain is deformed or not can be obtained by comparing historical elevation change conditions for a period of time; the third-party construction means that whether the evidence of the broken earth and the moving work exists or not is obtained through fusion analysis of the visible light and/or the infrared image and the INSAR elevation data so as to carry out routing inspection identification.
The technical effects of the embodiment are as follows: through will remote sensing data carry out data processing analysis and can judge whether the oil gas pipeline leaks 21, whether the ground environment that the oil gas pipeline is located takes place the earth's surface and subsides or the earth's surface warp 22, whether there is third party construction in the ground environment of oil gas pipeline 23.
Referring to fig. 4, in an embodiment of the present invention, the step S3 of scheduling a satellite to perform a remote sensing operation on an oil and gas pipeline according to a preset inspection frequency based on the inspection task information and acquiring remote sensing data includes: s31, acquiring remote sensing data of the surrounding environment of the oil and gas pipeline by utilizing hyperspectral and/or infrared and/or INSAR radar perception technology on the satellite so as to judge whether the oil and gas pipeline leaks 21.
The more specific implementation details of the embodiment are as follows: and performing state identification by using infrared rays, hyperspectrum and radar remote sensing data on the satellite.
The technical effects of the embodiment are as follows: through utilizing perception technique on the satellite acquires the remote sensing data of oil gas pipeline is used for judging whether oil gas pipeline leaks 21 can let the result of patrolling and examining more accurate and high-efficient.
Referring to fig. 4, in an embodiment of the present invention, the step S3 of scheduling a satellite to perform a remote sensing operation on an oil and gas pipeline according to a preset inspection frequency based on the inspection task information and acquiring remote sensing data includes: s32, acquiring the ground elevation data of the oil and gas pipeline by using the radar sensing technology on the satellite, and judging whether the ground environment where the oil and gas pipeline is located has ground surface sedimentation or ground surface deformation.
The more specific implementation details of the embodiment are as follows: and the INSAR data of different time dimensions are subjected to comprehensive statistics and identification to obtain the trend results of settlement and deformation.
The technical effects of the embodiment are as follows: through utilizing radar identification technology on the satellite acquires the ground elevation data of oil gas pipeline is used for judging whether the ground environment that oil gas pipeline was located takes place the earth's surface and subsides or the earth's surface warp and can let the result of patrolling and examining more accurate and high-efficient.
Referring to fig. 4, in an embodiment of the present invention, the step S3 of scheduling a satellite to perform a remote sensing operation on an oil and gas pipeline according to a preset inspection frequency based on the inspection task information and acquiring remote sensing data includes: s33, acquiring the ground environment data of the oil and gas pipeline by using the image recognition technology and/or the radar recognition technology on the satellite so as to judge whether the ground environment of the oil and gas pipeline has third-party construction 23.
The more specific implementation details of the embodiment are as follows: the third-party construction is to perform routing inspection identification by obtaining whether signs of earth breaking and moving work exist through fusion analysis of the visible light images and the INSAR elevation data.
The technical effects of the embodiment are as follows: through utilizing image recognition technology and/or radar identification technology on the satellite acquire oil gas pipeline's ground environment data are used for judging whether oil gas pipeline's ground environment has third party construction 23 can let the result of patrolling and examining more accurate and high-efficient.
The noun explains: image recognition technology is based on the main features of images. Each image has its features such as the letter a having a tip, P having a circle, and the center of Y having an acute angle, etc. The study of eye movement in image recognition shows that the sight line is always focused on the main features of the image, namely, the places where the curvature of the contour of the image is maximum or the direction of the contour changes suddenly, and the information content of the places is maximum. And the scan path of the eye always goes from one feature to another in turn. Therefore, in the image recognition process, the perception mechanism must exclude the input redundant information and extract the key information. At the same time, there must be a mechanism in the brain that is responsible for integrating information, which can organize the information obtained in stages into a complete perceptual map.
In a human image recognition system, complex images are often recognized through different levels of information processing. For a familiar figure, it is recognized as a unit by grasping its main features, and its details are not paid attention to. Such an integral unit composed of isolated unit material is called a block, each of which is sensed simultaneously. In the recognition of the character material, people can not only form the units of strokes or components of a Chinese character into a block, but also can recognize the frequently-occurring characters or phrases into block units.
In an embodiment of the present invention, the performing data processing and analysis on the remote sensing data includes: and carrying out data processing analysis on the remote sensing data through a data processing system on the satellite and/or a data processing system of the satellite ground system.
The technical effects of the embodiment are as follows: on the one hand, the data processing system on the satellite can be used for carrying out data processing analysis on the remote sensing data, on the other hand, the data processing system of the satellite ground system can be used for carrying out data processing analysis on the remote sensing data, and the data processing system on the satellite and the data processing system of the satellite ground system can be used for carrying out data processing analysis on the remote sensing data, so that more choices for data processing are available, the convenience of data processing is improved, the data processing is more efficient and accurate, and the inspection result is more accurate and efficient.
Referring to fig. 5, in an embodiment of the present invention, the present invention further provides an oil-gas pipeline inspection system 4 based on constellation remote sensing technology, where the system 4 includes: the receiving module 41 is used for receiving the inspection task information 1 of the oil and gas pipeline by the satellite ground system; the scheduling module 42 is used for the satellite ground system to schedule the satellite to perform remote sensing operation on the oil-gas pipeline according to the preset routing inspection frequency 12 and obtain remote sensing data; the data processing module 43 is used for performing data filtering and data analysis on the remote sensing data; and an analysis result obtaining module 44, configured to obtain an analysis result 2.
The technical effects of the embodiment are as follows: the system 4 utilizes the satellite to inspect the oil and gas pipeline, so that the efficiency and the accuracy of inspection results can be improved.
The noun explains: the remote sensing technology is a technology for collecting electromagnetic radiation information of a ground object target from a satellite, an airplane or other aircrafts and judging the earth environment and resources. The comprehensive sensing technology is gradually formed along with the development of aerospace technology and electronic computer technology on the basis of aerial photography and interpretation in the 60 s. Any object has different electromagnetic wave reflection or radiation characteristics. The aerospace remote sensing is to sense the electromagnetic radiation characteristics of a ground object target by using a remote sensor installed on an aircraft, and record the characteristics for identification and judgment. Remote sensing is carried out by placing a remote sensor on aircrafts such as high-altitude balloons, airplanes and the like, and the remote sensing is called aerial remote sensing. The remote sensor is arranged on a spacecraft for remote sensing, and is called space remote sensing. The whole set of instrumentation that accomplishes the task of remote sensing is called the remote sensing system. Aeronautic and astronautic remote sensing can sense from different heights, large range, fast and multi-spectral range to obtain a large amount of information. Space remote sensing can also periodically obtain real-time ground object information. Thus, the aviation and aerospace remote sensing technology is widely applied to various aspects of national economy and military affairs. For example, applications in meteorological observations, resource surveys, mapping, and military reconnaissance, among others. The remote sensing technology is a technology for detecting and identifying a target by sensing electromagnetic waves, visible light and infrared rays reflected by the target or radiated by the target from a long distance. For example, aerial photography is a remote sensing technique. The artificial earth satellite successfully launches, and the development of the remote sensing technology is greatly promoted. The modern remote sensing technology mainly comprises links of information acquisition, transmission, storage, processing and the like. The complete system for completing the functions is called a remote sensing system, and the core component of the system is a remote sensor for acquiring information. The remote sensors are of various types, mainly including cameras, television cameras, multispectral scanners, imaging spectrometers, microwave radiometers, synthetic aperture radars, and the like. The transmission device is used to transmit telemetry information from a remote platform (e.g., a satellite) back to the ground station. The information processing apparatus includes a color synthesizer, an image interpreter, a digital image processor, and the like. Any object has spectral characteristics, and in particular, they have different absorption, reflection, and radiation spectral properties. The reflection conditions of various objects in the same spectral region are different, and the reflection of the same object on different spectrums is also obviously different. Even if the same object is used, the reflection spectrum and the absorption spectrum of the same object are different due to different irradiation angles of sunlight at different time and different places. The remote sensing technology is based on the principles to make judgment on the object. Remote sensing technology typically uses three spectral bands, green, red and infrared, for detection. Green segments are typically used to detect characteristics of groundwater, rock and soil; detecting the growth, change, water pollution and the like of plants in the red light section; the infrared section detects land, mineral products and resources. The remote sensing platform is a carrier for carrying remote sensors in the remote sensing process, is like a tripod for placing a camera during ground photography, and is a device for placing the remote sensors in the air or space. The main remote sensing platforms are high-altitude balloons, airplanes, rockets, artificial satellites, manned spacecraft and the like. Remote sensors are instruments that sense the radiation or reflected electromagnetic waves of the terrestrial environment remotely. There are more than 20 kinds of sensors, including visible light camera, infrared camera, ultraviolet camera, infrared scanner, multispectral scanner, microwave radiation and scatterometer, side-looking radar, special imager, imaging spectrometer, etc. the remote sensor is developing to multispectral, multi-polarization, miniaturization and high resolution.
In an embodiment of the present invention, the analysis result 2 includes: whether the oil and gas pipeline leaks 21, whether the ground environment that the oil and gas pipeline is located takes place the earth's surface and subsides or the earth's surface is out of shape, whether the ground environment of oil and gas pipeline has third party construction 23.
The technical effects of the embodiment are as follows: through will remote sensing data carry out data processing analysis and can judge whether the oil gas pipeline leaks 21, whether the ground environment that the oil gas pipeline is located takes place the earth's surface and subsides or the earth's surface warp, whether there is third party construction in the ground environment of oil gas pipeline 23.
The invention also provides a computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the above-mentioned method.
As mentioned above, the oil-gas pipeline inspection method and system based on the constellation remote sensing technology have the following beneficial effects: the oil and gas pipelines are inspected by the satellite, the whole-process coverage of the long-distance pipeline can be realized, and the inspection frequency can be shortened to the satellite revisit time; the comprehensive research and judgment can be carried out by utilizing various sensors of visible light, infrared, radar and the like of the satellite, so that the accuracy of automatic identification is improved; and the automatic study and judgment of pipeline abnormity is realized based on the image analysis of multi-source perception.
In conclusion, the present invention effectively overcomes various disadvantages of the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. An oil-gas pipeline inspection method based on a constellation remote sensing technology is characterized by comprising the following steps:
acquiring inspection task information of an oil-gas pipeline;
scheduling a satellite based on the inspection task information to perform remote sensing operation on the oil-gas pipeline according to a preset inspection frequency and an inspection place and acquire remote sensing data; wherein: the remote sensing data comprises data detected by utilizing visible light, infrared rays, hyperspectrum and an INSAR radar;
carrying out data processing analysis on the remote sensing data;
and obtaining an analysis result.
2. The oil and gas pipeline inspection method based on constellation remote sensing technology according to claim 1, characterized in that: the patrol task information comprises: the system comprises oil and gas pipeline space information, inspection frequency and inspection content information.
3. The oil and gas pipeline inspection method based on constellation remote sensing technology according to claim 1, characterized in that: the analysis result comprises: whether the oil gas pipeline leaks, whether the oil gas pipeline is located and the peripheral ground environment takes place the earth's surface and subsides or the earth's surface is out of shape, whether the ground environment of oil gas pipeline has the third party construction.
4. The oil and gas pipeline patrol method based on constellation remote sensing technology according to any one of claims 1-3, characterized in that: the remote sensing operation of the oil-gas pipeline and the acquisition of remote sensing data based on the routing inspection task information scheduling satellite according to the preset routing inspection frequency comprises the following steps: and acquiring remote sensing data of the surrounding environment of the oil-gas pipeline by utilizing hyperspectral and/or infrared and/or INSAR radar sensing technology on the satellite so as to judge whether the oil-gas pipeline leaks.
5. The oil and gas pipeline patrol method based on constellation remote sensing technology according to any one of claims 1-3, characterized in that: the remote sensing operation of the oil-gas pipeline and the acquisition of remote sensing data based on the routing inspection task information scheduling satellite according to the preset routing inspection frequency comprises the following steps: utilize INSAR radar perception technique on the satellite acquires the peripheral elevation data of oil and gas pipeline is used for judging whether the peripheral ground environment of oil and gas pipeline takes place earth's surface subsides or earth's surface deformation.
6. The oil and gas pipeline patrol method based on constellation remote sensing technology according to any one of claims 1-3, characterized in that: the remote sensing operation of the oil-gas pipeline and the acquisition of remote sensing data based on the routing inspection task information scheduling satellite according to the preset routing inspection frequency comprises the following steps: and acquiring remote sensing data around the oil and gas pipeline by using visible light and/or infrared rays and/or an INSAR radar sensing technology on the satellite so as to judge whether third-party construction exists in the ground environment of the oil and gas pipeline.
7. The oil and gas pipeline patrol method based on constellation remote sensing technology according to any one of claims 1-3, characterized in that: the data processing and analyzing of the remote sensing data comprises: and carrying out data processing analysis on the remote sensing data through a data processing system on the satellite and/or a data processing system of the satellite ground system.
8. An oil gas pipeline patrols linear system based on constellation remote sensing technique, its characterized in that, the system includes:
the task management module is used for defining the polling task, communicating with the satellite ground system and sending polling task data;
the on-satellite preprocessing module is used for defining a preprocessing algorithm and/or rule of on-satellite remote sensing data;
the data processing module is used for carrying out data filtering and data analysis on the remote sensing data;
and the analysis result acquisition module is used for acquiring the analysis result and forming an inspection report.
9. The oil and gas pipeline inspection system based on constellation remote sensing technology according to claim 8, characterized in that: the analysis result comprises: whether the oil and gas pipeline leaks, whether the ground environment that the oil and gas pipeline is located takes place the earth's surface and subsides or the earth's surface is out of shape, whether oil and gas pipeline and/or peripheral ground environment have the third party construction.
10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method of claims 1 to 7.
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