CN113284025B

CN113284025B - Flood early warning method and flood early warning device

Info

Publication number: CN113284025B
Application number: CN202110531568.6A
Authority: CN
Inventors: 高姣姣; 颜宇森; 田勇; 朱杰; 肖秋平; 韩超; 尚掩库; 宗乐斌; 胡海燕
Original assignee: Beijing Zhongdi Huaan Environmental Engineering Co ltd
Current assignee: Beijing Zhongdi Huaan Technology Co ltd
Priority date: 2021-05-14
Filing date: 2021-05-14
Publication date: 2023-11-21
Anticipated expiration: 2041-05-14
Also published as: CN113284025A

Abstract

The disclosure provides a flood early warning method, comprising: an effective flood early-warning zone is determined, an oil-gas pipeline is paved in the effective flood early-warning zone, the oil-gas pipeline passes through n flow-through points of m rivers, p hydrologic stations are arranged on the m rivers, m, n and p are integers, and m is more than or equal to p is more than or equal to 3. The area of influence of the river on the hydrocarbon pipeline at each flow-through point is determined. And dividing the effective flood warning zone into p polygonal areas adjacent to each other according to an equidistant polygonal method by using the position information of the p hydrologic stations, wherein the rivers flowing through the same polygonal area have the same flood warning level. And determining the flood early warning grade of the oil and gas pipeline at each flowing point according to the flood early warning grade corresponding to the polygonal area in which each flowing point falls. And obtaining a flood early warning result of the oil and gas pipeline based on the river influence area at each flowing point and the flood early warning grade at each flowing point. In addition, the disclosure also provides a flood warning device.

Description

Flood early warning method and flood early warning device

Technical Field

The disclosure relates to the technical field of geological disaster early warning, in particular to a flood early warning method and a flood early warning device.

Background

The water system of China is complex, the rivers are numerous, and the main line of the oil and gas pipeline with the paving distance of tens of thousands of kilometers inevitably passes through or spans over the numerous rivers. River floods frequently occurring in the annual flood season in China are closely related to human beings, so that disasters are brought, resources are provided, and the oil and gas pipeline is subjected to a huge flood threat risk.

However, against the threat of river flood, the lack of flood early warning methods for oil and gas pipelines in the related technologies leads to failure to timely send out flood early warning according to the river flood conditions, and failure to timely take precautionary measures for the oil and gas pipelines.

Disclosure of Invention

Aiming at the study blank in the field of oil and gas pipeline flood early warning, the disclosure aims to provide a flood early warning method for oil and gas pipelines, so as to solve the problem of early warning that the oil and gas pipelines crossing or crossing rivers are threatened by flood.

One aspect of the present disclosure provides a flood warning method, comprising: determining an effective flood early warning zone, wherein an oil gas pipeline is paved in the effective flood early warning zone, the oil gas pipeline passes through n flow points of m rivers, p hydrologic stations are arranged on the m rivers, m, n and p are integers, and m is more than or equal to p and more than or equal to 3; determining the influence area of the river at each flowing point on the oil and gas pipeline; dividing the effective flood warning zone into p polygonal areas adjacent to each other according to an equidistant polygonal method by using the position information of the p hydrologic stations, wherein the rivers flowing through the same polygonal area have the same flood warning level; determining the flood early warning level of the oil and gas pipeline at each flowing point according to the flood early warning level corresponding to the polygonal area in which each flowing point falls; and obtaining a flood warning result of the oil and gas pipeline based on the river influence area at each flowing point and the flood warning grade at each flowing point.

According to an embodiment of the present disclosure, the determining the influence area of the river at each flow-through point on the oil and gas pipeline includes: determining a river level at each flow point, wherein the river level comprises a main flow, a primary branch flow, a secondary branch flow and a tertiary branch flow from high to low in sequence; determining a river impact buffer area at each of the flow points based on the river level, wherein the width of the river impact buffer area decreases as the river level decreases; determining the oil and gas pipeline buffer area at each flowing point; and determining the influence area of the river at each flowing point on the oil and gas pipeline according to the river influence buffer area at each flowing point and the oil and gas pipeline buffer area.

According to an embodiment of the present disclosure, determining the impact area of the river on the oil and gas pipeline at each flow point according to the river impact buffer area and the oil and gas pipeline buffer area at each flow point includes: overlapping the river impact buffer area and the oil and gas pipeline buffer area at each flowing point, wherein the river impact buffer area comprises a first-level buffer area close to a river central line and a second-level buffer area except the first-level buffer area; determining the superposition area of the primary buffer area and the oil and gas pipeline buffer area as the central area of the influence area of the river at each flowing point on the oil and gas pipeline; and determining the overlapping area of the secondary buffer area and the oil and gas pipeline buffer area as the edge area of the influence area of the river on the oil and gas pipeline at each flowing point.

According to an embodiment of the present disclosure, the dividing the effective flood warning section into p polygonal areas adjacent to each other according to an equidistant polygon method using the position information of the p hydrologic stations includes: drawing an initial polygon consisting of p sides in the effective flood warning zone by using the position information of the p hydrologic stations; making a vertical line from the midpoint of each of the p sides to the boundary of the effective flood warning zone to obtain main boundaries of the p polygonal areas adjacent to each other; and connecting the centroid of the initial polygon, the main boundary of the p polygonal areas and the boundary of the effective flood warning section to divide the effective flood warning section into p polygonal areas adjacent to each other.

According to an embodiment of the present disclosure, the above method further includes: acquiring river hydrologic data acquired by each hydrologic station, wherein the river hydrologic data are used for representing the river water level of a river where the hydrologic station is located; obtaining an early warning water level in the effective flood early warning zone, wherein the early warning water level comprises a guaranteed water level, a warning water level and a fortification water level, the guaranteed water level is higher than the warning water level, and the warning water level is higher than the fortification water level; and determining flood warning levels corresponding to the p polygonal areas in which the p hydrologic stations fall based on the relation between the river water level and the warning water level.

According to an embodiment of the present disclosure, the determining, based on the relationship between the river water level and the early-warning water level, a flood early-warning level corresponding to the p polygonal areas in which the p hydrologic stations fall includes: under the condition that the river water level is lower than the fortification water level, determining that the flood early warning level corresponding to the polygonal area in which the hydrologic station falls is no flood early warning; under the condition that the river water level is not lower than the fortification water level and lower than the warning water level, determining that the flood early warning level corresponding to the polygonal area where the hydrologic station falls into is three-level flood early warning; under the condition that the river water level is not lower than the warning water level and lower than the guaranteed water level, determining that the flood early warning level corresponding to the polygonal area where the hydrologic station falls into is a secondary flood early warning; and under the condition that the river water level is higher than the guaranteed water level, determining the flood early warning grade corresponding to the polygonal area in which the hydrologic station falls as primary flood early warning.

According to an embodiment of the present disclosure, the determining the flood warning level of the oil and gas pipeline at each of the flowing points includes: and determining the flood early-warning level of the oil and gas pipeline at each flowing point in sequence according to the sequence from high to low of the flood early-warning levels corresponding to the p polygonal areas, wherein the early-warning levels are primary flood early-warning, secondary flood early-warning, tertiary flood early-warning and flood-free early-warning in sequence from high to low.

According to an embodiment of the present disclosure, the above method further includes: and superposing and displaying the river influence area at each flowing point and the flood warning level at each flowing point, wherein the primary flood warning, the secondary flood warning, the tertiary flood warning and the no-flood warning have different display effects.

Another aspect of the present disclosure provides a flood warning device, comprising: the first determining module is used for determining an effective flood early-warning zone, wherein an oil-gas pipeline is paved in the effective flood early-warning zone, the oil-gas pipeline passes through n flow points of m rivers, p hydrologic stations are arranged on the m rivers, m, n and p are integers, and m is more than or equal to p is more than or equal to 3; the second determining module is used for determining the influence area of the river at each flowing point on the oil and gas pipeline; the dividing module is used for dividing the effective flood warning area into p polygonal areas adjacent to each other according to an equidistant polygonal method by using the position information of the p hydrologic stations, wherein the rivers flowing through the same polygonal area have the same flood warning level; the third determining module is used for determining the flood early-warning level of the oil and gas pipeline at each flowing-through point according to the flood early-warning level corresponding to the polygonal area in which each flowing-through point falls; and the first obtaining module is used for obtaining the flood warning result of the oil and gas pipeline based on the river influence area at each flowing point and the flood warning grade at each flowing point.

According to an embodiment of the present disclosure, the second determining module includes: the first determining submodule is used for determining the river level at each flowing point, wherein the river level comprises a main flow, a primary branch flow, a secondary branch flow and a tertiary branch flow from high to low in sequence; a second determining sub-module for determining a river impact buffer area at each of the flow points based on the river level, the width of the river impact buffer area decreasing with decreasing river level; a third determining sub-module for determining the oil and gas pipeline buffer area at each flow point; and a fourth determining submodule, configured to determine an influence area of the river at each flow point on the oil and gas pipeline according to the river influence buffer area at each flow point and the oil and gas pipeline buffer area.

According to an embodiment of the present disclosure, the fourth determining submodule includes: a superposition unit for superposing the river impact buffer area and the oil and gas pipeline buffer area at each flowing point, wherein the river impact buffer area comprises a primary buffer area near a river center line and a secondary buffer area except the primary buffer area; a first determining unit configured to determine a region where the first-stage buffer region coincides with the oil and gas pipeline buffer region as a central region of an influence region of the river at each of the flow-through points on the oil and gas pipeline; and the second determining unit is used for determining the superposition area of the secondary buffer area and the oil and gas pipeline buffer area as the edge area of the influence area of the river at each flowing point on the oil and gas pipeline.

According to an embodiment of the present disclosure, the above-mentioned dividing module includes: the drawing submodule is used for drawing an initial polygon consisting of p sides in the effective flood early-warning zone by using the position information of the p hydrologic stations; the obtaining submodule is used for obtaining main boundaries of the p polygonal areas adjacent to each other by taking a vertical line from the midpoint of each of the p edges to the boundary of the effective flood warning zone; and the dividing sub-module is used for connecting the centroids of the initial polygons, and dividing the main boundaries of the p polygonal areas and the boundaries of the effective flood warning areas into p polygonal areas adjacent to each other.

According to an embodiment of the present disclosure, the above apparatus further includes: the acquisition module is used for acquiring river hydrologic data acquired by each hydrologic station, wherein the river hydrologic data are used for representing the river water level of a river where the hydrologic station is located; the second obtaining module is used for obtaining the early warning water level in the effective flood early warning zone, wherein the early warning water level comprises a guaranteed water level, a warning water level and a fortification water level, the guaranteed water level is higher than the warning water level, and the warning water level is higher than the fortification water level; and a fourth determining module, configured to determine flood warning levels corresponding to the p polygonal areas where the p hydrologic stations fall, based on a relationship between the river water level and the warning water level.

According to an embodiment of the present disclosure, the fourth determining module is configured to: under the condition that the river water level is lower than the fortification water level, determining that the flood early warning level corresponding to the polygonal area in which the hydrologic station falls is no flood early warning; under the condition that the river water level is not lower than the fortification water level and lower than the warning water level, determining that the flood early warning level corresponding to the polygonal area where the hydrologic station falls into is three-level flood early warning; under the condition that the river water level is not lower than the warning water level and lower than the guaranteed water level, determining that the flood early warning level corresponding to the polygonal area where the hydrologic station falls into is a secondary flood early warning; and under the condition that the river water level is higher than the guaranteed water level, determining the flood early warning grade corresponding to the polygonal area in which the hydrologic station falls as primary flood early warning.

According to an embodiment of the present disclosure, the third determining module is configured to: and determining the flood early-warning level of the oil and gas pipeline at each flowing point in sequence according to the sequence from high to low of the flood early-warning levels corresponding to the p polygonal areas, wherein the early-warning levels are primary flood early-warning, secondary flood early-warning, tertiary flood early-warning and flood-free early-warning in sequence from high to low.

According to an embodiment of the present disclosure, the above apparatus further includes: and the display module is used for displaying the river influence area at each flowing point and the flood warning level at each flowing point in a superposition way, wherein the display effects of the primary flood warning, the secondary flood warning, the tertiary flood warning and the no-flood warning are different.

Another aspect of the present disclosure provides an electronic device, comprising: and one or more processors, a memory for storing one or more programs, wherein the one or more programs, when executed by the one or more processors, cause the one or more processors to implement the method as described above.

Another aspect of the present disclosure provides a computer-readable storage medium storing computer-executable instructions that, when executed, are configured to implement a method as described above.

Another aspect of the present disclosure provides a computer program comprising computer executable instructions which, when executed, are adapted to carry out the method as described above.

According to the embodiment of the disclosure, in the determined effective flood warning zone, the flood warning result of the oil and gas pipeline is obtained based on the river influence area at each flowing point and the flood warning grade at each flowing point, so that the research blank of the related technology aiming at the oil and gas pipeline in the flood warning field can be at least partially filled, and flood warning can be timely sent out according to the river flood condition, and precautionary measures can be timely taken for the oil and gas pipeline.

Drawings

Several embodiments of the present disclosure are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings.

Fig. 1 schematically illustrates an application scenario of a flood warning method according to an embodiment of the present disclosure;

fig. 2 schematically illustrates a flow chart of a flood warning method according to an embodiment of the present disclosure;

fig. 3 schematically illustrates a flow chart of a flood warning method according to another embodiment of the present disclosure;

FIG. 4 schematically illustrates an area of influence of a river flood on an oil and gas pipeline in accordance with an embodiment of the present disclosure;

FIG. 5 schematically illustrates an equidistant polygon graph in accordance with an embodiment of the present disclosure;

fig. 6 schematically illustrates a flood warning result graph according to an embodiment of the present disclosure;

fig. 7 schematically illustrates a block diagram of a flood warning device according to an embodiment of the disclosure;

fig. 8 schematically illustrates a schematic diagram of a computer-readable storage medium product suitable for implementing the flood warning method described above, according to an embodiment of the present disclosure; and

fig. 9 schematically illustrates a block diagram of an electronic device adapted to implement the flood warning method described above, according to an embodiment of the present disclosure.

Description of the embodiments

Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. It should be understood that the description is only exemplary and is not intended to limit the scope of the present disclosure. In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the present disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the concepts of the present disclosure.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The terms "comprises," "comprising," and/or the like, as used herein, specify the presence of stated features, steps, operations, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, or components. All terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art unless otherwise defined. It should be noted that the terms used herein should be construed to have meanings consistent with the context of the present specification and should not be construed in an idealized or overly formal manner.

Where expressions like at least one of "A, B and C, etc. are used, the expressions should generally be interpreted in accordance with the meaning as commonly understood by those skilled in the art (e.g.," a system having at least one of A, B and C "shall include, but not be limited to, a system having a alone, B alone, C alone, a and B together, a and C together, B and C together, and/or A, B, C together, etc.). Where a formulation similar to at least one of "A, B or C, etc." is used, in general such a formulation should be interpreted in accordance with the ordinary understanding of one skilled in the art (e.g. "a system with at least one of A, B or C" would include but not be limited to systems with a alone, B alone, C alone, a and B together, a and C together, B and C together, and/or A, B, C together, etc.).

Some of the block diagrams and/or flowchart illustrations are shown in the figures. It will be understood that some blocks of the block diagrams and/or flowchart illustrations, or combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, or other programmable flood warning device, such that the instructions, when executed by the processor, create means for implementing the functions/acts specified in the block diagrams and/or flowchart. The techniques of this disclosure may be implemented in hardware and/or software (including firmware, microcode, etc.). Additionally, the techniques of this disclosure may take the form of a computer program product on a computer-readable storage medium having instructions stored thereon, the computer program product being for use by or in connection with an instruction execution system.

The flood early warning method provided by the disclosure relates to the field of geological disaster early warning, in particular to the field of flood early warning of long-distance oil and gas pipelines crossing or crossing rivers, not only can a discrimination method for flood early warning levels of a single river be provided under the condition that the oil and gas pipelines cross or cross the rivers, but also can a discrimination method for flood early warning levels of a plurality of rivers be provided under the condition that the oil and gas pipelines cross or cross the rivers but the hydrologic data in partial areas is not complete by defining the concept of the flood early warning areas of the oil and gas pipelines and combining the hydrologic similarity principle in the same flood early warning areas.

For simplicity of explanation, the context of the present disclosure will take the number of rivers m=4, the number of flow points n=7, and the number of hydrologic stations p=3 as examples, to illustrate the flood early warning method provided by the present disclosure.

Fig. 1 schematically illustrates an application scenario of a flood warning method according to an embodiment of the present disclosure.

According to an embodiment of the present disclosure, the application scenario 100 includes 4 rivers (river 1, river 2, river 3, river 4, respectively) that develop mainly, 3 hydrologic stations (hydrologic station a, hydrologic station B, hydrologic station C, respectively) and oil and gas pipelines.

As shown in fig. 1, each river develops a main stream and a tributary, and in order to collect hydrologic data of the river, a hydrologic station may be generally set up on the main stream of the river. Specifically, a hydrological station a is set up on the main stream of river 1, a hydrological station B is set up on the main stream of river 2, and a hydrological station C is set up on the main stream of river 3. The oil and gas pipeline sequentially passes through or spans river 1, river 3, river 4 and river 2 from north to south, and the positions of the intersections with the 4 rivers comprise 7 positions which are a, b, c, d, e, f, g respectively. The intersection point position of the oil gas pipeline crossing or crossing the river 1 comprises a, b and c, namely, the intersection point position of the oil gas pipeline crossing or crossing one branch of the river 1 and the river 1 is a, the intersection point position of the oil gas pipeline crossing or crossing the main flow of the river 1 and the river 1 is b, the intersection point position of the oil gas pipeline crossing or crossing the other branch of the river 1 and the river 1 is c. The hydrocarbon pipeline crosses or spans the main stream of river 3, and the intersection point position of the hydrocarbon pipeline and river 3 is d. The crossing or crossing of the oil and gas pipeline and the river 4 form crossing points of e and f, namely a branch crossing or crossing of the oil and gas pipeline and the river 4 are included, the crossing point of e and the oil and gas pipeline and the river 4 is the crossing point of f. The intersection point of the oil and gas pipeline crossing or crossing the main flow of the river 2 and the river 2 is g.

It can be understood that the number of the hydrologic stations is very limited (for example, the hydrologic stations are set up in the river 1, the river 2 and the river 3, but the hydrologic stations are not set up in the main flow and the branch flow of the river 4), so that the hydrologic data of the river 4 are lost, and flood warning in the area of the river 4 can not be predicted when the hydro-pneumatic pipeline passes through or spans. The method fills the blank in the field of river oil and gas pipeline flood early warning when hydrologic data are missing, forms a theoretical method for oil and gas pipeline flood early warning, and provides a method basis for the oil and gas pipeline to develop flood early warning work.

Fig. 2 schematically illustrates a flow chart of a flood warning method according to an embodiment of the present disclosure.

As shown in fig. 2, the flood warning method 200 may include operations S210 to S250.

In operation S210, an effective flood warning zone is determined, an oil gas pipeline is paved in the effective flood warning zone, the oil gas pipeline passes through n flow-through points of m rivers, p hydrologic stations are arranged on the m rivers, m, n and p are integers, and m is more than or equal to p is more than or equal to 3.

In the present disclosure, the passage of the hydrocarbon pipeline through the river may be the passage of the hydrocarbon pipeline through the river, or the passage of the hydrocarbon pipeline through the river. The oil and gas pipelines cross or span large, medium and small rivers, but the number of hydrologic stations is very limited. Some rivers which are not provided with hydrologic stations cause certain difficulty for flood early warning of oil and gas pipelines due to lack of hydrologic data. In order to solve the problem of flood warning of the oil and gas pipeline in the area where the hydrologic data part is missing, the present disclosure proposes the concept of the oil and gas pipeline flood warning zone.

Specifically, the oil gas pipeline flood early-warning zone is a constraint boundary of the oil gas pipeline flood early-warning grading within a certain larger range, the same zone has similar hydrologic conditions, and the hydrologic conditions of different zones are greatly different. The oil and gas pipeline flood early warning zone determines the level boundary of the flood early warning in the area. If a single river is used as an early warning zone, the range of early warning representatives is too small, the river flood early warning with no or insufficient hydrologic data nearby is ignored, and some safety risks faced by the oil and gas pipeline are exposed outside the early warning zone; if a large drainage basin is used as an early warning zone, the range of early warning representatives is too large, and an oversized safe zone is arranged in the early warning zone, so that the early warning and investigation cost is increased. Because the range of the early warning zone is too small or too large in the oil and gas pipeline flood early warning, the three-level drainage basin range is used as the oil and gas pipeline flood early warning zone range by comparing drainage basin hydrologic characteristics with the routing trend of the oil and gas pipeline. The oil gas pipeline flood early warning zone through which the existing oil gas pipeline passes is called an effective oil gas pipeline flood early warning zone, and the oil gas pipeline flood early warning zone through which the existing oil gas pipeline passes is called an ineffective oil gas pipeline flood early warning zone.

In operation S220, an area of influence of the river on the hydrocarbon pipeline at each flow-through point is determined.

According to the embodiment of the disclosure, the range of the influence areas corresponding to different flow points of the river on the oil and gas pipeline can be the same or different, and the specific situation depends on the river and the oil and gas pipeline.

In operation S230, the effective flood warning section is divided into p polygonal areas adjacent to each other according to the equidistant polygonal method using the position information of the p hydrologic stations, and the rivers flowing through the same polygonal areas have the same flood warning level.

According to an embodiment of the present disclosure, an effective flood warning zone is divided into a plurality of closed p polygonal areas adjacent to each other.

In operation S240, the flood warning level of the oil and gas pipeline at each flowing point is determined according to the flood warning level corresponding to the polygonal area where each flowing point falls.

According to the embodiment of the disclosure, once the flood early-warning level of the river where the hydrologic station is located is determined, the flood early-warning level of the river where the hydrologic station is located and the flood early-warning level of the flowing through and the falling flowing through point are the same as the flood early-warning level of the river where the hydrologic station is located in the polygonal area.

In operation S250, a flood warning result of the oil and gas pipeline is obtained based on the river impact area at each flowing through point and the flood warning level at each flowing through point.

According to the embodiment of the disclosure, in the determined effective flood early-warning zone, the flood early-warning result of the oil-gas pipeline is obtained based on the river influence area at each flowing point and the flood early-warning grade at each flowing point, so that the research blank of the related technology aiming at the oil-gas pipeline in the flood early-warning field can be filled at least partially, and flood early-warning can be sent out in time according to the river flood condition, and precautionary measures can be taken for the oil-gas pipeline in time.

Fig. 3 schematically illustrates a flow chart of a flood warning method according to another embodiment of the present disclosure.

As shown in fig. 3, the flood warning method 300 may include operations S310 to S380.

In operation S310, hydrocarbon tubing data is collected. In operation S320, river hydrologic data is collected. In operation S330, a valid flood warning zone is determined. In operation S340, a river flood influence range is determined. In operation S350, an influence range of the flood on the oil and gas pipeline is determined. In operation S360, a flood warning result of a single river for the oil and gas pipeline is obtained. In operation S370, flood warning results of the plurality of rivers on the oil and gas pipeline are obtained through an equidistant polygon method. Specifically, firstly, determining the hydro-pneumatic pipeline flood early warning range of the river where the hydrologic station is located according to the hydrologic data of the hydrologic station, then drawing equidistant polygons in the effective flood early warning zone determined in operation S330, and finally determining the flood early warning levels of a plurality of rivers flowing through the polygons. In operation S380, a flood warning result of the oil and gas pipeline is obtained.

As an alternative embodiment, determining the area of influence of the river on the hydrocarbon pipeline at each flow-through point comprises: determining a river level at each flowing point, wherein the river level comprises a main flow, a primary branch flow, a secondary branch flow and a tertiary branch flow from high to low in sequence; determining a river impact buffer zone at each flow point based on the river level, wherein the width of the river impact buffer zone decreases as the river level decreases; determining a buffering area of the oil and gas pipeline at each flowing point; and determining the influence area of the river at each flow point on the oil and gas pipeline according to the river influence buffer area and the oil and gas pipeline buffer area at each flow point.

The higher the level of the river, the closer to the river channel, and the greater the threat of river flood to the oil and gas pipeline. The present disclosure determines the range of influence of river floods based on collected hydrographic data of a single river provided with a hydronic station. In the implementation, the main stream, the first-stage branch stream, the second-stage branch stream and the third-stage branch stream of the river are determined by analyzing and researching hydrologic data of the river, and then a first-stage buffer zone and a second-stage buffer zone for representing the influence range of river flood are drawn according to the principle that the width of the buffer zone is gradually reduced from the main stream to the third-stage branch stream, wherein the ranges of the first-stage buffer zone and the second-stage buffer zone are different. Specifically, the area near the center line of the river may be defined as a primary buffer zone, and the area outside the primary buffer zone may be defined as a secondary buffer zone.

As an alternative embodiment, determining the impact area of the river on the hydrocarbon pipeline at each flow point based on the river impact buffer area and the hydrocarbon pipeline buffer area at each flow point comprises: overlapping a river impact buffer zone and an oil and gas pipeline buffer zone at each flow point, wherein the river impact buffer zone comprises a primary buffer zone near a river midline and a secondary buffer zone except the primary buffer zone; determining the superposition area of the primary buffer area and the oil and gas pipeline buffer area as the central area of the influence area of the river at each flowing point on the oil and gas pipeline; and determining the superposition area of the secondary buffer area and the oil and gas pipeline buffer area as the edge area of the influence area of the river on the oil and gas pipeline at each flowing point.

According to the embodiment of the disclosure, not only the relevant data of the oil and gas pipeline but also the hydrological data of the river need to be collected, based on the collected relevant data, the oil and gas pipeline buffer zone can be determined, and the flood influence buffer zone (namely, the influence range of river flood) can also be determined, and the flood influence buffer zone can be divided into a primary buffer zone and a secondary buffer zone. On the basis, the determined oil and gas pipeline buffer areas and the flood influence buffer areas are overlapped, and the influence range of river flood on the oil and gas pipeline can be determined by selecting an intersection area between the two buffer areas. It should be noted that, in the present disclosure, the influence range may be divided into a central area and an edge area, where the central area is an oil-gas pipeline river flood early warning central area, and the edge area is an oil-gas pipeline river flood early warning edge area.

FIG. 4 schematically illustrates an area diagram of an oil and gas pipeline affected by a river flood in accordance with an embodiment of the present disclosure. Based on the collected data about the oil and gas pipeline, the oil and gas pipeline flood warning buffer zone (the zone on both sides of the oil and gas pipeline as shown in fig. 4) can be determined. The area range close to the center line of the river is defined as a first-level buffer zone, the area range outside the first-level buffer zone is defined as a second-level buffer zone, the intersection of the oil and gas pipeline flood early-warning buffer zone and the first-level buffer zone is taken, the oil and gas pipeline flood early-warning center zone (the oblique line coverage zone shown in fig. 4) can be determined, the intersection of the oil and gas pipeline flood early-warning buffer zone and the second-level buffer zone is taken, and the oil and gas pipeline flood early-warning edge zone (the broken line coverage zone shown in fig. 4) can be determined.

According to the hydrologic data of a single river provided with the hydrologic station, the oil and gas pipeline flood early warning grade of the single river can be determined. Optionally, the method further comprises: acquiring river hydrologic data acquired by each hydrologic station, wherein the river hydrologic data are used for representing the river water level of a river where the hydrologic station is located; obtaining an early warning water level in an effective flood early warning zone, wherein the early warning water level comprises a guaranteed water level, a warning water level and a fortification water level, the guaranteed water level is higher than the warning water level, and the warning water level is higher than the fortification water level; and determining flood early warning levels corresponding to the p polygonal areas where the p hydrologic stations fall based on the relation between the river water level and the early warning water level.

In the present disclosure, the warning water level Zj refers to a water level at which dangerous situations may occur in a river or a river water level rising to a river segment, and in general, the great river or the great river with a dike depends on a flood generally spreading on a beach or the water level at which important dike segments are immersed in the dike feet, and the water level is a water level at which the dangerous situations of the dike may gradually increase. When the river water level is lower than the guard water level Zj, the oil and gas pipeline may still be threatened by flood, so that the guard water level Zs is set below the river guard water level Zj. The guaranteed water level Zb refers to the water level which can guarantee the safe operation of the embankment engineering, and is also called the highest flood control water level or the dangerous water level, and refers to the design water level of the embankment or the highest water level which is defended historically.

As an optional embodiment, determining, based on a relationship between a river water level and an early warning water level, flood early warning levels corresponding to p polygonal areas in which p hydrologic stations fall includes: under the condition that the river water level is lower than the fortification water level, determining that the flood early warning level corresponding to the polygonal area in which the hydrologic station falls is no flood early warning; under the condition that the river water level is not lower than the fortification water level and lower than the warning water level, determining that the flood early warning level corresponding to the polygonal area where the hydrologic station falls into is three-level flood early warning; under the condition that the river water level is not lower than the warning water level and lower than the guaranteed water level, determining that the flood early warning level corresponding to the polygonal area where the hydrologic station falls into is a secondary flood early warning; and under the condition that the river water level is high and the water level is guaranteed, determining the flood early warning level corresponding to the polygonal area where the hydrologic station falls into as the primary flood early warning.

In the present disclosure, it may be determined in relation between the river water level Z and the guard water level Zs, the guard water level Zj, and the guaranteed water level Zb. In the specific implementation, if the river water level Z is less than the fortification water level Zs, no early warning is provided. If the defending water level Zs is less than or equal to the river water level Z < warning water level Zj, three-level early warning (yellow early warning) is performed, and the oil and gas pipeline crossing the river is generally predicted to be greatly threatened by flood. If the warning water level Zj is less than or equal to the river water level Z < the guaranteed water level Zb, the warning water level Zj is a secondary early warning (orange early warning), and if the river water level Z > is equal to the guaranteed water level Zb, the warning water level Zj is a primary early warning (red early warning), and the oil and gas pipeline crossing (crossing) the river is predicted to be extremely threatened by flood.

As an alternative embodiment, dividing the effective flood warning section into p polygonal areas adjacent to each other according to the equidistant polygon method using the position information of the p hydrologic stations includes: drawing an initial polygon consisting of p sides in an effective flood early-warning zone by using the position information of p hydrologic stations; taking the midpoint of each of the p sides as a vertical line to the boundary of the effective flood warning zone to obtain main boundaries of p polygonal areas adjacent to each other; the centroids of the initial polygons, the main boundaries of the p polygonal areas and the boundaries of the effective flood warning sections are connected to divide the effective flood warning sections into p polygonal areas adjacent to each other.

Fig. 5 schematically illustrates an equidistant polygon graph in accordance with an embodiment of the present disclosure. As shown in fig. 5, adjacent hydrologic stations (i.e., hydrologic station a and hydrologic station B, hydrologic station B and hydrologic station C, and hydrologic station C and hydrologic station a) are connected, a node with a polygonal midpoint is taken as a connecting line between adjacent hydrologic stations, distances from the node to the hydrologic stations at two ends of the connecting line are equal, and a plurality of adjacent equidistant polygonal main boundaries can be obtained by taking the node as a perpendicular line to the boundary of the early warning zone. From the connection of the centroids of the triangles to the nodes to close the polygons, 3 polygons, polygon X, polygon Y, and polygon H, respectively, can be obtained.

As an alternative embodiment, determining the flood warning level of the oil and gas pipeline at each flow point comprises: according to the sequence of the flood early warning levels corresponding to the p polygonal areas from high to low, the flood early warning levels of the oil and gas pipelines at each flowing point are sequentially determined, and the early warning levels are primary flood early warning, secondary flood early warning, tertiary flood early warning and no flood early warning in sequence from high to low.

And determining the flood early warning level of the hydrologic station according to the hydrologic data acquired by the hydrologic station and the flood early warning discrimination mode of the single river, wherein the hydrologic station A is a diode pipeline flood early warning, the hydrologic station B is a non-early warning, and the hydrologic station C is a three-stage pipeline flood early warning. Therefore, the river 1 where the hydrologic station A is located can be determined to be the secondary pipeline flood early warning, the river 2 where the hydrologic station B is located is not provided with the early warning, and the river 3 where the hydrologic station C is located is determined to be the tertiary pipeline flood early warning. It should be noted that, the flood early warning distinguishing mode of the single river is as described above, and will not be described here again.

Because of the crossing or crossing river terminals of the oil and gas pipelines, in order to avoid the problem of contradiction of flood early warning levels, the flood early warning levels of the pipelines except for the river 1, the river 2 and the river 3 are determined in sequence from the polygon with the highest flood early warning level among a plurality of equidistant polygons in the disclosure. In the implementation, the highest flood warning level in the polygon X, the polygon Y and the polygon H is the polygon X and the polygon H times. Therefore, the river flowing through the polygon X can be determined to be the diode pipeline flood early warning from the polygon X, the river flowing through the polygon Y is not early warning, and the river flowing through the polygon H is three-stage early warning. Namely, the branch of the river 1 and the branch of the river 3 are two-stage pipeline flood early warning, the branch of the river 4 and the branch on the right are three-stage pipeline flood early warning, and the branch of the river 2 and the branch on the left of the river 4 are not early warning.

As an alternative embodiment, the method further comprises: and overlapping and displaying the river influence area at each flowing point and the flood warning level at each flowing point, wherein the display effects of the primary flood warning, the secondary flood warning, the tertiary flood warning and the no-flood warning are different.

Fig. 6 schematically illustrates a flood warning result graph according to an embodiment of the present disclosure. As shown in fig. 6, after the pipeline flood early warning levels of the river main stream and the branch stream are determined, that is, the flood early warning level where the pipeline crosses or spans the river is determined, the display effect of the flood early warning may include, but is not limited to, the early warning color and the early warning graphic size corresponding to the early warning level. The oil gas pipeline in the early warning zone passes through or spans 7 flowing points of the river, the positions a, b and c are determined to be secondary flood early warning, the early warning graphic representation can be orange, the positions d and e are three-level early warning, the early warning graphic representation can be yellow, and the positions f and g are not provided with early warning. And obtaining an oil and gas pipeline flood early warning result according to the oil and gas pipeline flood early warning central area (shown by oblique lines in the figure) and the oil and gas pipeline flood early warning edge area (shown by broken lines in the figure) of each flood early warning level at each flowing point. In order to facilitate the checking, the flood warning result at each flowing point can be displayed in an amplified manner, and the display effect of the amplified flood warning result of the oil and gas pipeline at d is shown in fig. 6.

Fig. 7 schematically illustrates a block diagram of a flood warning device according to an embodiment of the disclosure.

As shown in fig. 7, the apparatus 700 may include a first determination module 710, a second determination module 720, a division module 730, a third determination module 740, and a first obtaining module 750.

The first determining module 710 is configured to determine an effective flood warning zone, in which an oil gas pipeline is laid, the oil gas pipeline passes through n flow points of m rivers, p hydrologic stations are set on the m rivers, m, n and p are integers, and m is greater than or equal to p and greater than or equal to 3. Alternatively, the first determining module 710 may be used to perform the foregoing operation S210, which is not described herein.

A second determining module 720 is configured to determine an area of influence of the river on the hydrocarbon pipeline at each of the flow points. Optionally, the second determining module 720 may be used to perform the foregoing operation S220, which is not described herein.

The dividing module 730 is configured to divide the effective flood warning area into p polygonal areas adjacent to each other according to the equidistant polygonal method using the position information of the p hydrologic stations, wherein the rivers flowing through the same polygonal area have the same flood warning level. Alternatively, the dividing module 730 may be used to perform the foregoing operation S230, which is not described herein.

And a third determining module 740, configured to determine a flood warning level of the oil and gas pipeline at each flowing point according to the flood warning level corresponding to the polygonal area where each flowing point falls. Optionally, the third determining module 740 may be configured to perform the foregoing operation S240, which is not described herein.

The first obtaining module 750 is configured to obtain a flood warning result of the oil and gas pipeline based on the river impact area at each flowing point and the flood warning level at each flowing point. Optionally, the first obtaining module 750 may be used to perform the foregoing operation S250, which is not described herein.

As an alternative embodiment, the second determining module includes: the first determining submodule is used for determining the river level at each flowing point, wherein the river level comprises a main flow, a primary branch flow, a secondary branch flow and a tertiary branch flow from high to low in sequence; a second determining sub-module for determining a river impact buffer area at each flow point based on the river level, wherein the width of the river impact buffer area decreases as the river level decreases; a third determination sub-module for determining a hydrocarbon pipeline buffer zone at each flow-through point; and a fourth determining submodule for determining an influence area of the river at each flow point on the oil and gas pipeline according to the river influence buffer area and the oil and gas pipeline buffer area at each flow point.

As an alternative embodiment, the fourth determining submodule includes: a superposition unit for superposing a river-influencing buffer area and an oil and gas pipeline buffer area at each flow-through point, wherein the river-influencing buffer area comprises a primary buffer area near a river midline and a secondary buffer area except the primary buffer area; the first determining unit is used for determining the superposition area of the primary buffer area and the oil and gas pipeline buffer area as the central area of the influence area of the river at each flowing point on the oil and gas pipeline; and a second determining unit for determining the overlapping area of the secondary buffer area and the oil and gas pipeline buffer area as the edge area of the influence area of the river on the oil and gas pipeline at each flowing point.

As an alternative embodiment, the partitioning module includes: the drawing submodule is used for drawing an initial polygon consisting of p sides in the effective flood early-warning zone by using the position information of the p hydrologic stations; the obtaining submodule is used for obtaining main boundaries of p polygonal areas adjacent to each other by taking a vertical line from the midpoint of each of the p edges to the boundary of the effective flood warning zone; and a dividing sub-module for connecting the centroids of the initial polygons, the main boundaries of the p polygonal areas and the boundaries of the effective flood warning areas to divide the effective flood warning areas into p polygonal areas adjacent to each other.

As an alternative embodiment, the flood warning device further comprises: the acquisition module is used for acquiring river hydrologic data acquired by each hydrologic station, wherein the river hydrologic data are used for representing the river water level of a river where the hydrologic station is located; the second acquisition module is used for acquiring an early warning water level in the effective flood early warning zone, wherein the early warning water level comprises a guaranteed water level, a warning water level and a fortification water level, the guaranteed water level is higher than the warning water level, and the warning water level is higher than the fortification water level; and the fourth determining module is used for determining flood early warning grades corresponding to p polygonal areas where the p hydrologic stations fall based on the relation between the river water level and the early warning water level.

As an alternative embodiment, the fourth determining module is configured to: under the condition that the river water level is lower than the fortification water level, determining that the flood early warning level corresponding to the polygonal area in which the hydrologic station falls is no flood early warning; under the condition that the river water level is not lower than the fortification water level and lower than the warning water level, determining that the flood early warning level corresponding to the polygonal area where the hydrologic station falls into is three-level flood early warning; under the condition that the river water level is not lower than the warning water level and lower than the guaranteed water level, determining that the flood early warning level corresponding to the polygonal area where the hydrologic station falls into is a secondary flood early warning; and under the condition that the river water level is high and the water level is guaranteed, determining the flood early warning level corresponding to the polygonal area where the hydrologic station falls into as the primary flood early warning.

As an alternative embodiment, the third determining module is configured to: and sequentially determining flood early-warning levels of the oil and gas pipelines at each flowing point according to the sequence from high to low of the flood early-warning levels corresponding to the p polygonal areas, wherein the early-warning levels are primary flood early-warning, secondary flood early-warning, tertiary flood early-warning and no flood early-warning in sequence from high to low.

As an alternative embodiment, the flood warning device further comprises: the display module is used for displaying the river influence area at each flowing point and the flood warning level at each flowing point in a superposition mode, wherein the display effects of primary flood warning, secondary flood warning, tertiary flood warning and no flood warning are different.

It should be noted that, the implementation manner, the solved technical problems, the realized functions and the achieved technical effects of each module in the flood early-warning device part embodiment are the same as or similar to the implementation manner, the solved technical problems, the realized functions and the achieved technical effects of each corresponding step in the flood early-warning method part embodiment, and are not described herein again.

Any number of modules, sub-modules, units, sub-units, or at least some of the functionality of any number of the sub-units according to embodiments of the present disclosure may be implemented in one module. Any one or more of the modules, sub-modules, units, sub-units according to embodiments of the present disclosure may be implemented as split into multiple modules. Any one or more of the modules, sub-modules, units, sub-units according to embodiments of the present disclosure may be implemented at least in part as hardware circuitry, such as field programmable gate arrays (FNGA), programmable logic arrays (NLA), systems on chip, systems on substrate, systems on package, application Specific Integrated Circuits (ASIC), or in hardware or firmware in any other reasonable manner of integrating or packaging circuitry, or in any one of or a suitable combination of any of three implementations of software, hardware, and firmware. Alternatively, one or more of the modules, sub-modules, units, sub-units according to embodiments of the present disclosure may be at least partially implemented as computer program modules, which when executed, may perform the corresponding functions.

For example, the first determining module, the second determining module, the dividing module, the third determining module, the first obtaining module, the first determining sub-module, the second determining sub-module, the third determining sub-module, the fourth determining sub-module, the superimposing unit, the first determining unit, the second determining unit, the drawing sub-module, the obtaining sub-module, the dividing sub-module, the obtaining module, the second obtaining module, the fourth determining module, and the presentation module may be combined in one module to be implemented, or any one of the modules may be split into a plurality of modules. Alternatively, at least some of the functionality of one or more of the modules may be combined with at least some of the functionality of other modules and implemented in one module. According to embodiments of the present disclosure, at least one of the first determination module, the second determination module, the partitioning module, the third determination module, the first obtaining module, the first determination sub-module, the second determination sub-module, the third determination sub-module, the fourth determination sub-module, the superposition unit, the first determination unit, the second determination unit, the drawing sub-module, the obtaining sub-module, the partitioning sub-module, the obtaining module, the second obtaining module, the fourth determination module, and the presentation module may be at least partially implemented as a hardware circuit, such as a field programmable gate array (FNGA), a programmable logic array (NLA), a system on a chip, a system on a substrate, a system on a package, an Application Specific Integrated Circuit (ASIC), or may be implemented in any other reasonable manner of hardware or firmware, such as an integrated circuit or packaged, or in any one of or a suitable combination of three manners of software, hardware and firmware. Alternatively, at least one of the first determining module, the second determining module, the dividing module, the third determining module, the first obtaining module, the first determining sub-module, the second determining sub-module, the third determining sub-module, the fourth determining sub-module, the superimposing unit, the first determining unit, the second determining unit, the drawing sub-module, the obtaining sub-module, the dividing sub-module, the obtaining module, the second obtaining module, the fourth determining module, and the presentation module may be at least partially implemented as a computer program module, which may perform the corresponding functions when being executed.

Fig. 8 schematically illustrates a schematic diagram of a computer-readable storage medium product suitable for implementing the flood warning method described above, according to an embodiment of the present disclosure.

In some possible implementations, the aspects of the present invention may also be implemented in the form of a program product comprising program code for causing an apparatus to perform the aforementioned operations (or steps) in a flood warning method according to the various exemplary embodiments of the present invention as described in the section "exemplary method" above of this specification, when the program product is run on the apparatus, e.g. the electronic apparatus may perform the operations as shown in fig. 2-6.

The program product may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. The readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium would include the following: an electrical connection having one or more wires, a portable disk, a hard disk, random Access Memory (RAM), read-only memory (ROM), erasable programmable read-only memory (ENROM or flash memory), optical fiber, portable compact disc read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination of the preceding.

As shown in fig. 8, a flood warning program product 800 in accordance with an embodiment of the present invention is described that may employ a portable compact disc read only memory (CD-ROM) and include program code and may be run on a device, such as a personal computer. However, the program product of the present invention is not limited thereto, and in this document, a readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, or device.

The readable signal medium may include a data signal propagated in baseband or as part of a carrier wave with readable program code embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A readable signal medium may also be any readable medium that is not a readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, or device. Program code embodied on a readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

Program code for carrying out operations of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on a remote computing device, or entirely on the remote computing device or server. In situations involving remote computing devices, the remote computing devices may connect to the user computing device through any kind of network, including a local area network (LAA) or wide area network (WAA), or may connect to an external computing device (e.g., through an internet connection using an internet service provider).

Fig. 9 schematically illustrates a block diagram of an electronic device adapted to implement the flood warning method described above, according to an embodiment of the present disclosure. The electronic device shown in fig. 9 is merely an example, and should not impose any limitations on the functionality and scope of use of embodiments of the present disclosure.

As shown in fig. 9, an electronic device 900 according to an embodiment of the present disclosure includes a processor 901 that can perform various appropriate actions and processes according to a program stored in a Read Only Memory (ROM) 902 or a program loaded from a storage portion 908 into a Random Access Memory (RAM) 903. Processor 901 may include, for example, a general purpose microprocessor (e.g., CNU), an instruction set processor and/or an associated chipset and/or a special purpose microprocessor (e.g., application Specific Integrated Circuit (ASIC)), or the like. Processor 901 may also include on-board memory for caching purposes. Processor 901 may include a single processing unit or multiple processing units for performing the different actions of the method flows according to embodiments of the present disclosure.

In the RAM 903, various programs and data necessary for the operation of the electronic device 900 are stored. The processor 901, the ROM 902, and the RAM 903 are connected to each other by a bus 904. The processor 901 performs various operations of the method flow according to the embodiments of the present disclosure by executing programs in the ROM 902 and/or the RAM 903. Note that the program may be stored in one or more memories other than the ROM 902 and the RAM 903. The processor 901 may also perform operations shown in fig. 2-6 according to embodiments of the present disclosure by executing programs stored in the one or more memories.

According to an embodiment of the disclosure, the electronic device 900 may also include an input/output (I/O) interface 905, the input/output (I/O) interface 905 also being connected to the bus 904. The electronic device 900 may also include one or more of the following components connected to the (I/O) interface 905: an input section 906 including a keyboard, a mouse, and the like; an output portion 907 including a display such as a Cathode Ray Tube (CRT), a Liquid Crystal Display (LCD), and a speaker; a storage portion 908 including a hard disk or the like; and a communication section 909 including a network interface card such as an LAA card, a modem, or the like. The communication section 909 performs communication processing via a network such as the internet. The drive 910 is also connected to the (I/O) interface 905 as needed. A removable medium 911 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like is installed as needed on the drive 910 so that a computer program read out therefrom is installed into the storage section 908 as needed.

According to embodiments of the present disclosure, the method flow according to embodiments of the present disclosure may be implemented as a computer software program. For example, embodiments of the present disclosure include a computer program product comprising a computer program embodied on a computer readable storage medium, the computer program comprising program code for performing the method shown in the flowcharts. In such an embodiment, the computer program may be downloaded and installed from the network via the communication portion 909 and/or installed from the removable medium 911. The above-described functions defined in the system of the embodiments of the present disclosure are performed when the computer program is executed by the processor 901. The systems, devices, apparatus, modules, units, etc. described above may be implemented by computer program modules according to embodiments of the disclosure.

The present disclosure also provides a computer-readable storage medium that may be embodied in the apparatus/device/system described in the above embodiments; or may exist alone without being assembled into the apparatus/device/system. The computer-readable storage medium carries one or more programs that, when executed, implement a flood warning method according to an embodiment of the present disclosure, including the operations shown in fig. 2 to 6.

According to embodiments of the present disclosure, the computer-readable storage medium may be a non-volatile computer-readable storage medium, which may include, for example, but is not limited to: portable computer diskette, hard disk, random Access Memory (RAM), read-only memory (ROM), erasable programmable read-only memory (ENROM or flash memory), portable compact disc read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination of the foregoing. In the context of this disclosure, a computer-readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. For example, according to embodiments of the present disclosure, the computer-readable storage medium may include ROM 902 and/or RAM 903 and/or one or more memories other than ROM 902 and RAM 903 described above.

The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams or flowchart illustration, and combinations of blocks in the block diagrams or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

Those skilled in the art will appreciate that the features recited in the various embodiments of the disclosure and/or in the claims may be combined in various combinations and/or combinations, even if such combinations or combinations are not explicitly recited in the disclosure. In particular, the features recited in the various embodiments of the present disclosure and/or the claims may be variously combined and/or combined without departing from the spirit and teachings of the present disclosure. All such combinations and/or combinations fall within the scope of the present disclosure.

The embodiments of the present disclosure are described above. However, these examples are for illustrative purposes only and are not intended to limit the scope of the present disclosure. Although the embodiments are described above separately, this does not mean that the measures in the embodiments cannot be used advantageously in combination. The scope of the disclosure is defined by the appended claims and equivalents thereof. Various alternatives and modifications can be made by those skilled in the art without departing from the scope of the disclosure, and such alternatives and modifications are intended to fall within the scope of the disclosure.

Claims

1. A flood warning method comprising:

determining an effective flood early warning zone, wherein an oil gas pipeline is paved in the effective flood early warning zone, the oil gas pipeline passes through n flow points of m rivers, p hydrologic stations are arranged on the m rivers, m, n and p are integers, and m is more than or equal to p and more than or equal to 3;

Determining the influence area of the river at each flowing point on the oil and gas pipeline;

dividing the effective flood warning zone into p polygonal areas adjacent to each other according to an equidistant polygonal method by using the position information of the p hydrologic stations, wherein the rivers flowing through the same polygonal area have the same flood warning level;

acquiring river hydrologic data acquired by each hydrologic station, wherein the river hydrologic data are used for representing the river water level of a river where the hydrologic station is located;

obtaining an early warning water level in the effective flood early warning zone, wherein the early warning water level comprises a guaranteed water level, a warning water level and a fortification water level, the guaranteed water level is higher than the warning water level, and the warning water level is higher than the fortification water level; and

based on the relation between the river water level and the early warning water level, determining flood early warning levels corresponding to the p polygonal areas in which the p hydrologic stations fall;

determining the flood early warning level of the oil and gas pipeline at each flowing point according to the flood early warning level corresponding to the polygonal area in which each flowing point falls; and

obtaining a flood early warning result of the oil and gas pipeline based on the river influence area at each flowing point and the flood early warning grade at each flowing point;

Wherein said determining the area of influence of the river at each flow-through point on the hydrocarbon pipeline comprises:

determining a river level at each flow-through point, wherein the river level comprises a main flow, a primary branch flow, a secondary branch flow and a tertiary branch flow in sequence from high to low;

determining a river impact buffer zone at each of the flow points based on the river level, wherein the width of the river impact buffer zone decreases as the river level decreases;

determining the oil and gas pipeline buffer area at each flow-through point; and

determining the influence area of the river at each flowing point on the oil and gas pipeline according to the river influence buffer area at each flowing point and the oil and gas pipeline buffer area;

wherein, according to the river influence buffer area at each flowing point and the oil gas pipeline buffer area, determining the influence area of the river at each flowing point on the oil gas pipeline comprises:

superposing a river impact buffer area at each flow-through point and the oil and gas pipeline buffer area, wherein the river impact buffer area comprises a primary buffer area near a river midline and a secondary buffer area except the primary buffer area;

Determining the superposition area of the primary buffer area and the oil and gas pipeline buffer area as the central area of the influence area of the river at each flowing point on the oil and gas pipeline; and

determining the superposition area of the secondary buffer area and the oil and gas pipeline buffer area as the edge area of the influence area of the river at each flowing point on the oil and gas pipeline;

wherein the dividing the effective flood warning zone into p polygonal areas adjacent to each other according to an equidistant polygonal method using the position information of the p hydrologic stations includes:

drawing an initial polygon consisting of p sides in the effective flood early-warning zone by using the position information of the p hydrologic stations;

taking the midpoint of each of the p sides as a perpendicular line to the boundary of the effective flood warning zone to obtain main boundaries of the p polygonal areas adjacent to each other; and

and connecting the centroids of the initial polygons, and dividing the main boundaries of the p polygonal areas and the boundaries of the effective flood warning areas into p polygonal areas adjacent to each other.

2. The method of claim 1, wherein the determining, based on the relationship between the river water level and the pre-warning water level, a flood pre-warning level corresponding to the p polygonal areas into which the p hydrologic stations fall comprises:

Under the condition that the river water level is lower than the fortification water level, determining that the flood early warning level corresponding to the polygonal area in which the hydrologic station falls is no flood early warning;

under the condition that the river water level is not lower than the fortification water level and lower than the warning water level, determining that the flood early warning level corresponding to the polygonal area where the hydrologic station falls into is three-level flood early warning;

under the condition that the river water level is not lower than the warning water level and lower than the guaranteed water level, determining that the flood early warning level corresponding to the polygonal area where the hydrologic station falls into is a secondary flood early warning; and

and under the condition that the river water level is higher than the guaranteed water level, determining the flood early warning level corresponding to the polygonal area where the hydrologic station falls into as primary flood early warning.

3. The method of claim 2, wherein the determining the flood warning level of the oil and gas pipeline at each flow-through point comprises:

and sequentially determining the flood early-warning levels of the oil and gas pipelines at each flowing point according to the sequence from high to low of the flood early-warning levels corresponding to the p polygonal areas, wherein the early-warning levels sequentially comprise primary flood early-warning, secondary flood early-warning, tertiary flood early-warning and no flood early-warning from high to low.

4. The method of claim 1, wherein the method further comprises:

and superposing and displaying the river influence area at each flowing point and the flood warning level at each flowing point, wherein the display effects of primary flood warning, secondary flood warning, tertiary flood warning and no flood warning are different.

5. A flood warning device comprising:

the first determining module is used for determining an effective flood early-warning zone, wherein an oil gas pipeline is paved in the effective flood early-warning zone, the oil gas pipeline passes through n flow points of m rivers, p hydrologic stations are arranged on the m rivers, m, n and p are integers, and m is more than or equal to p is more than or equal to 3;

the second determining module is used for determining the influence area of the river at each flowing point on the oil and gas pipeline;

the dividing module is used for dividing the effective flood warning area into p polygonal areas adjacent to each other according to an equidistant polygonal method by using the position information of the p hydrologic stations, wherein the rivers flowing through the same polygonal area have the same flood warning level;

the acquisition module is used for acquiring river hydrologic data acquired by each hydrologic station, wherein the river hydrologic data are used for representing the river water level of a river where the hydrologic station is located;

The second acquisition module is used for acquiring an early warning water level in the effective flood early warning zone, wherein the early warning water level comprises a guaranteed water level, a warning water level and a fortification water level, the guaranteed water level is higher than the warning water level, and the warning water level is higher than the fortification water level;

a fourth determining module, configured to determine flood warning levels corresponding to p polygonal areas where p hydrologic stations fall based on a relationship between a river water level and a warning water level;

the third determining module is used for determining the flood early-warning level of the oil and gas pipeline at each flowing-through point according to the flood early-warning level corresponding to the polygonal area in which each flowing-through point falls; and

the first obtaining module is used for obtaining a flood early warning result of the oil and gas pipeline based on the river influence area at each flowing point and the flood early warning grade at each flowing point;

wherein the second determining module includes: the first determining submodule is used for determining the river level at each flowing point, wherein the river level comprises a main flow, a primary branch flow, a secondary branch flow and a tertiary branch flow from high to low in sequence; a second determining sub-module for determining a river impact buffer area at each flow point based on the river level, wherein the width of the river impact buffer area decreases as the river level decreases; a third determination sub-module for determining a hydrocarbon pipeline buffer zone at each flow-through point; the fourth determining submodule is used for determining the influence area of the river at each flowing point on the oil and gas pipeline according to the river influence buffer area and the oil and gas pipeline buffer area at each flowing point;

Wherein the fourth determination submodule includes: a superposition unit for superposing a river-influencing buffer area and an oil and gas pipeline buffer area at each flow-through point, wherein the river-influencing buffer area comprises a primary buffer area near a river midline and a secondary buffer area except the primary buffer area; the first determining unit is used for determining the superposition area of the primary buffer area and the oil and gas pipeline buffer area as the central area of the influence area of the river at each flowing point on the oil and gas pipeline; the second determining unit is used for determining the superposition area of the secondary buffer area and the oil and gas pipeline buffer area as the edge area of the influence area of the river on the oil and gas pipeline at each flowing point;

wherein, the division module includes: the drawing submodule is used for drawing an initial polygon consisting of p sides in the effective flood early-warning zone by using the position information of the p hydrologic stations; the obtaining submodule is used for obtaining main boundaries of p polygonal areas adjacent to each other by taking a vertical line from the midpoint of each of the p edges to the boundary of the effective flood warning zone; and a dividing sub-module for connecting the centroids of the initial polygons, the main boundaries of the p polygonal areas and the boundaries of the effective flood warning areas to divide the effective flood warning areas into p polygonal areas adjacent to each other.

6. An electronic device, comprising:

one or more processors; and

a memory for storing one or more programs,

wherein the one or more programs, when executed by the one or more processors, cause the one or more processors to perform the method of any of claims 1-4.