A substation outlet site selection method and device based on spatial intersection analysis algorithm

Abstract

The application discloses a substation outlet site selection method and device based on a space intersection analysis algorithm, and comprises the following steps: obtaining the center point coordinate of a substation according to GIS distance measurement, and generating a buffer surface with the center point coordinate as the center and in an incremental manner; performing intersection and superposition analysis on the buffer surface according to road space information data, and obtaining a road data set with the nearest projection distance; obtaining the distance point nearest to the center of the substation from the buffer surface according to the road data set, adding an interpolation point between the nearest distance point and the substation, and obtaining the longitude and latitude coordinates of each interpolation point; calling a terrain data interface to obtain the elevation value of each interpolation point, calculating the actual space distance between each interpolation point, and determining the optimal outlet position according to the actual space distance. The application provides an accurate decision-making aid by combining the intersection analysis algorithm of spatial geographic information, can effectively and quickly select the outlet site of the substation, saves transportation cost, and has high economic benefits.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power grid planning, and in particular to a substation outlet site selection method and device based on a spatial intersection analysis algorithm. BACKGROUND

[0002] Substation site selection is a very complex work involving many factors, and substation outlet site selection is one of the problems that need to be considered. Generally, the direction towards the nearest road is considered as the outlet selection, which is mainly from the perspective of transportation, and the nearest distance is selected for convenience.

[0003] The existing substation site selection selects the outlet by measuring the distance between the substation and the surrounding roads on the GIS map through the GIS distance measurement function, and collects the nearest road position by comparison. Manual operation is prone to errors when comparing distances, and cannot accurately calculate the true distance, which may also cause deviations and errors, thereby affecting the transportation economic cost. The existing site selection method with the substation center point as the origin, through buffer surface intersection analysis, calculates the distance of the nearest road around, but the calculated distance is only a plane distance under projection, and in complex terrain areas, the projection distance cannot be accurately selected due to the ups and downs of the ground, and the outlet of the substation cannot be selected, resulting in high economic cost. SUMMARY

[0004] This section aims to summarize some aspects of the embodiments of the present application and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of the specification to avoid obscuring the purpose of this section, abstract and title, and such simplifications or omissions cannot be used to limit the scope of the present application.

[0005] In view of the above existing problems, the present application is proposed.

[0006] Therefore, the present application provides a substation outlet site selection method and device based on a spatial intersection analysis algorithm, which solves the problem that the existing manual measurement method is too complex and cannot accurately select the outlet when the distance between the complex terrain and the road and the substation is long.

[0007] To solve the above technical problems, the present application provides the following technical solutions:

[0008] In a first aspect, the present application provides a substation outlet site selection method based on a spatial intersection analysis algorithm, comprising:

[0009] The center point coordinates of the substation are obtained based on GIS distance measurement, and a buffer surface is generated incrementally with the center point coordinates as the center.

[0010] The buffer surface is subjected to intersection and superposition analysis based on highway spatial information data to obtain a highway dataset with the closest projection distance.

[0011] Based on the highway dataset, the nearest distance point to the substation center that intersects with the buffer surface is obtained. Interpolation points are added between the nearest distance point and the substation, and the latitude and longitude coordinates of each interpolation point are obtained.

[0012] The elevation value of each interpolation point is obtained by calling the terrain data interface, the actual spatial distance between each interpolation point is calculated, and the optimal exit location is determined based on the actual spatial distance.

[0013] As a preferred embodiment of the substation outlet location method based on spatial intersection analysis algorithm described in this invention, wherein:

[0014] The coordinates of the center point of the substation are represented as follows:

[0015] (lng,lat)

[0016] Where lng is longitude and lat is latitude.

[0017] As a preferred embodiment of the substation outlet location method based on spatial intersection analysis algorithm described in this invention, the method of incrementally generating a buffer surface with the center point coordinates as the center includes: drawing a circle by continuously increasing the radius to gradually generate a circular buffer surface.

[0018] As a preferred embodiment of the substation outlet location method based on spatial intersection analysis algorithm described in this invention, the buffer surface undergoes intersection superposition analysis based on highway spatial information data, including:

[0019] When the dimension of the geometric figure generated by the intersection is less than the maximum dimension of the two source geometric figures and the intersection set is located inside the two source geometric figures, the spatial geometric values ​​have the condition of intersecting and crossing, and the highway dataset with the closest projection distance is obtained.

[0020] As a preferred embodiment of the substation outlet location method based on spatial intersection analysis algorithm described in this invention, the highway dataset includes:

[0021] The highway dataset has a length of 10. Based on the 10 relatively close highways, the nearest point to the substation center that intersects with the buffer surface is obtained, and 10 connecting lines are established.

[0022] As a preferred scheme of the substation outlet site selection method based on the spatial intersection analysis algorithm, wherein: interpolation points are added between the nearest distance point and the substation, and the longitude and latitude coordinates of each interpolation point are obtained, including:

[0023] According to the 10 connecting lines established between the nearest distance point and the substation, interpolation points are added at a distance of 1 meter, and the longitude and latitude coordinates (lng, lat) of each point are obtained.

[0024] As a preferred scheme of the substation outlet site selection method based on the spatial intersection analysis algorithm, wherein: the elevation value of each interpolation point is obtained by calling the terrain data interface, the actual spatial distance between each interpolation point is calculated, and the optimal outlet position is determined according to the actual spatial distance, including:

[0025] The elevation value of each interpolation point is obtained by calling the terrain data interface. When the longitude, latitude and elevation value of each interpolation point are obtained, the actual spatial distance between each interpolation point is obtained, and the actual spatial distance of the 10 lines is obtained by adding again. The shortest length distance is the optimal selection of the outlet highway, and the substation boundary through which the outlet highway connecting line passes is the best selection position of the substation outlet.

[0026] In a second aspect, the embodiment of the present application provides a substation outlet site selection device based on a spatial intersection analysis algorithm, including:

[0027] An information acquisition module is configured to acquire the center point coordinates of a substation, and generate a buffer surface by taking the center point coordinates as the center of a circle;

[0028] An intersection superposition analysis module is configured to perform intersection superposition analysis on the buffer surface according to highway spatial information data to obtain a highway data set with the shortest projection distance; obtain a distance point closest to the center of the substation intersecting the buffer surface according to the highway data set; add interpolation points between the nearest distance point and the substation, and obtain the longitude and latitude coordinates of each interpolation point.

[0029] A terrain data calling module is configured to obtain the elevation value of each interpolation point, calculate the actual spatial distance between each interpolation point, and determine the optimal outlet position according to the actual spatial distance.

[0030] In a third aspect, the embodiment of the present application provides a computing device, including:

[0031] A memory and a processor;

[0032] The memory is configured to store computer executable instructions, and the processor is configured to execute the computer executable instructions, when the one or more programs are executed by the one or more processors, so that the one or more processors implement the substation outlet site selection method based on the spatial intersection analysis algorithm as described in any of the embodiments of the present application.

[0033] In a fourth aspect, an embodiment of the present application provides a computer readable storage medium storing computer executable instructions, which, when executed by a processor, implement the substation outlet site selection method based on the spatial intersection analysis algorithm.

[0034] Compared with the prior art, the present application has the beneficial effects that: the present application combines the intersection analysis algorithm of spatial geographic information to provide an accurate decision-making aid, which can effectively and quickly select the outlet site of the substation, and in the long run, can save transportation costs and has economic benefits. BRIEF DESCRIPTION OF DRAWINGS

[0035] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor. Among them:

[0036] Figure 1 A flowchart of a substation outlet site selection method based on a spatial intersection analysis algorithm according to an embodiment of the present application;

[0037] Figure 2 A module diagram of a substation outlet site selection device based on a spatial intersection analysis algorithm according to an embodiment of the present application;

[0038] Figure 3 A spatial relationship diagram of a substation outlet site selection method based on a spatial intersection analysis algorithm according to an embodiment of the present application. DETAILED DESCRIPTION

[0039] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings of the specification. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should be within the scope of protection of the present application.

[0040] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one skilled in the art that the present application can be practiced without the specific details set forth in this description. In other instances, well-known methods, procedures, components, and circuits have not been described in detail as not to unnecessarily obscure aspects of the present application.

[0041] It should also be noted that, as used herein, "one embodiment" or "an embodiment" refers to a particular feature, structure, or characteristic described in connection with at least one implementation of the application. The appearance of the phrase "in one embodiment" or "in an embodiment" in various places in the specification is not necessarily referring to the same embodiment, nor is it necessary that all embodiments include the same feature, structure or characteristic. Moreover, various features are described which can be exhibited by some embodiments and not by others. Similarly, various features can be implemented in hardware, software, or combination thereof and some embodiments can be implemented utilizing one or more of these features.

[0042] The application is described in detail below with reference to the attached drawing figures, wherein the implementations of the application are shown as examples. The application can be embodied in many different forms and should not be construed as limited to the implementations set forth herein. Rather, these implementations are provided as examples of the application so that this disclosure will convey the principles and a understanding of the application to those skilled in the art. For the purpose of clarity, not all of the routine features of the implementations described herein are shown. It should be appreciated that those skilled in the art will be able to devise numerous implementations that, although not explicitly described herein, embody the principles of the application and can be configured for use in a variety of applications and environments.

[0043] In the description of the application, it should be understood that the terms "upper and lower, inner and outer" and the like refer to the relative positions of the components shown in the drawings, and are for the purpose of illustrating and describing the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the application. In addition, the terms "first, second or third" are used only for the purpose of description and should not be construed as indicating or implying relative importance.

[0044] Unless otherwise defined, the terms "mounting, connecting, and connecting" in the present application should be understood broadly, for example: it can be fixedly connected, detachably connected or integrally connected; it can also be mechanically connected, electrically connected or directly connected; it can also be indirectly connected through an intermediate medium; it can also be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0045] Embodiment 1

[0046] Reference Figures 1-2 For the first embodiment of the present application, the embodiment provides a substation outlet site selection method based on spatial intersection analysis algorithm, comprising:

[0047] S100: Obtain the center point coordinates of the substation according to the GIS distance measurement, and generate a buffer surface with the center point coordinates as the center;

[0048] Further, the center point coordinates of the substation are represented as:

[0049] (lng, lat)

[0050] wherein lng is longitude and lat is latitude.

[0051] Further, the incremental generation of the buffer surface with the center point coordinate as the center of a circle includes:

[0052] The circular buffer surface is gradually generated by drawing a circle with an increasing radius.

[0053] S200: The buffer surface is subjected to intersection and overlay analysis according to the road spatial information data to obtain a road data set with the closest projection distance;

[0054] Further, the intersection and overlay analysis of the buffer surface according to the road spatial information data includes:

[0055] When the dimension of the generated geometric figure by intersection is less than the maximum dimension of the two source geometric figures and the intersection set is located inside the two source geometric figures, the spatial geometric value has an intersection span, and a road data set with the closest projection distance is obtained.

[0056] It should be noted that the points contained in the intersection object must be inside the two source geometries and not equal to any one of the source objects.

[0057] Further, the road data set includes:

[0058] The road data set has a length of 10, and according to 10 relatively close roads, the distance points intersecting the buffer surface closest to the substation center are obtained to establish 10 connecting lines.

[0059] It should be noted that comparison according to 10 records can ensure the accuracy of the results.

[0060] S300: According to the road data set, the distance points intersecting the buffer surface closest to the substation center are obtained, an interpolation point is added between the closest distance point and the substation, and the longitude and latitude coordinates of each interpolation point are obtained;

[0061] Further, the addition of the interpolation point between the closest distance point and the substation and the obtaining of the longitude and latitude coordinates of each interpolation point include:

[0062] According to the 10 connecting lines established between the closest distance point and the substation, an interpolation point is added at a distance of 1 meter to obtain the longitude and latitude coordinates of each point (lng, lat).

[0063] S400: The terrain data interface is called to obtain the elevation value of each interpolation point, the actual spatial distance between each interpolation point is calculated, and the optimal exit location is determined according to the actual spatial distance;

[0064] Further, the terrain data interface is called to obtain the elevation value of each interpolation point, the actual spatial distance between each interpolation point is calculated, and the optimal outbound port position is determined according to the actual spatial distance.

[0065] The elevation value of each interpolation point is obtained by calling the terrain data interface, when the longitude, latitude and elevation value of each interpolation point are obtained, the actual spatial distance between each interpolation point is obtained, and the actual spatial distances of the 10 lines are obtained by adding, the shortest distance length of the 10 lines is the optimal selection of the outbound highway, and the boundary of the transformer substation passed by the outbound highway is the best selection position of the outbound port of the transformer substation.

[0066] Figure 2 It is a structure schematic diagram of a transformer substation outbound port site selection device based on a spatial intersection analysis algorithm provided by the application, and the embodiment can be applied to the case of the transformer substation outbound port site selection method based on the spatial intersection analysis algorithm.

[0067] Referring to Figure 2 The transformer substation outbound port site selection device based on the spatial intersection analysis algorithm in the embodiment comprises:

[0068] The information acquisition module 101 is used for acquiring the center point coordinates of the transformer substation, and generating a buffer surface with the center point coordinates as the center and increasing;

[0069] The intersection superposition analysis module 201 is used for performing intersection superposition analysis on the buffer surface according to the highway spatial information data, obtaining a highway data set with the nearest projection distance, obtaining the nearest distance point from the center of the transformer substation according to the highway data set, adding an interpolation point between the nearest distance point and the transformer substation, and obtaining the longitude and latitude coordinates of each interpolation point;

[0070] The terrain data calling module 401 is used for obtaining the elevation value of each interpolation point, calculating the actual spatial distance between each interpolation point, and determining the optimal outbound port position according to the actual spatial distance.

[0071] The embodiment further provides a computing device suitable for the case of the transformer substation outbound port site selection method based on the spatial intersection analysis algorithm, and the computing device comprises:

[0072] The memory and the processor; the memory is used for storing computer executable instructions, and the processor is used for executing the computer executable instructions to realize the transformer substation outbound port site selection method based on the spatial intersection analysis algorithm proposed in the above embodiment.

[0073] The computer device can be a terminal, and the computer device includes a processor, a memory, a communication interface, a display screen and an input device connected through a system bus. The processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for running the operating system and the computer program in the non-volatile storage medium. The communication interface of the computer device is configured to perform wired or wireless communication with an external terminal. The wireless communication can be achieved through WIFI, an operator network, NFC (Near Field Communication) or other technologies. The display screen of the computer device can be a liquid crystal display screen or an electronic ink display screen. The input device of the computer device can be a touch layer overlaid on the display screen, or a key, trackball or touchpad arranged on the shell of the computer device, or an external keyboard, touchpad or mouse, etc.

[0074] The embodiment also provides a storage medium having a computer program stored thereon, and the computer program is executed by a processor to implement the method for selecting a substation outlet location based on a spatial intersection analysis algorithm.

[0075] The storage medium provided by the embodiment belongs to the same inventive concept as the data storage method provided by the above embodiment, and the technical details not described in detail in the embodiment can be referred to the above embodiment, and the embodiment has the same beneficial effects as the above embodiment.

[0076] Embodiment 2

[0077] Reference Figure 3 For an embodiment of the present application, in order to verify the beneficial effects, scientific demonstration is performed through specific operation steps.

[0078] Taking a postgis spatial database as an example, in combination with an actual scene, taking a substation center point as an origin, a circle is drawn through a continuously increasing radius, the circle is taken as a reference query object, through a spatial geometric value existing intersection span, according to an ST_Croses(geometry A, geometry B) method, whether two geometric figures intersect is judged, if a dimension of a geometric figure generated by intersection is less than a maximum dimension of two source geometric figures, and an intersection set is located inside the two source geometric figures, then ST_Crosses(geometry A, geometry B) is returned, which indicates that the road is a road candidate corresponding to 10 reference outlets.

[0079] Through the above method, 10 roads are found, and a ground line distance of the center point coordinate of the substation to intersection points of the 10 roads is calculated.

[0080] Taking one of the roads as an example, the substation center point coordinates are (lngA, latA), the road intersection point coordinates are (lngB, latB), the line is determined by two points, and the interpolation points are inserted at a distance of 1 meter, the distance of the two lines is 1 kilometer, and there are 999 interpolation points in the middle, [[lng1, lat1], [lng2, lat2]...[lng999, lat999]], by obtaining the elevation information of each interpolation point, the actual spatial distance between two points is obtained according to the spatial connection distance between each interpolation point, the final result is the shortest distance from the substation center point to the road, and the distance of 10 roads is calculated respectively, and the shortest distance is the optimal choice of the exit road, and the line through the substation boundary is the best choice position of the substation exit, as shown in Table 1:

[0081] Table 1 distance data

[0082]

[0083] As can be seen from Table 1, after comparison, it is determined that the intersection point of road 1 is closest to the substation center position, and road 1 is determined as the best choice position of the substation exit.

[0084] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application, and they should be included in the scope of the claims of the present application.

Claims

1. A substation outlet location selection method based on spatial intersection analysis algorithm, characterized in that, include: The center point coordinates of the substation are obtained based on GIS distance measurement, and a buffer surface is generated incrementally with the center point coordinates as the center. The buffer surface is subjected to intersection and superposition analysis based on highway spatial information data to obtain a highway dataset with the closest projection distance. Based on the highway dataset, the nearest distance point to the substation center that intersects with the buffer surface is obtained. Interpolation points are added between the nearest distance point and the substation, and the latitude and longitude coordinates of each interpolation point are obtained. The elevation value of each interpolation point is obtained by calling the terrain data interface, the actual spatial distance between each interpolation point is calculated, and the optimal exit location is determined based on the actual spatial distance. Specifically: The elevation value of each interpolation point is obtained by calling the terrain data interface. When the longitude, latitude, and elevation value of each interpolation point are known, the actual spatial distance between each interpolation point is obtained. At the same time, the actual spatial distances of 10 lines are added together. The shortest distance among the 10 lines is the optimal choice for the exit road. The boundary of the substation through which the exit road passes is the optimal location for the substation exit.

2. The substation outlet location method based on spatial intersection analysis algorithm as described in claim 1, characterized in that: The coordinates of the center point of the substation are represented as follows: (lng,lat) Where lng is longitude and lat is latitude.

3. A substation outlet location selection method based on spatial intersection analysis algorithm as described in claim 1 or 2, characterized in that, The buffer surface is generated incrementally with the coordinates of the center point as the center, including: drawing circles with continuously increasing radii to gradually generate a circular buffer surface.

4. The substation outlet location method based on spatial intersection analysis algorithm as described in claim 3, characterized in that, The buffer surface is subjected to intersection and overlay analysis based on highway spatial information data, including: When the dimension of the geometric figure generated by the intersection is less than the maximum dimension of the two source geometric figures and the intersection set is located inside the two source geometric figures, the spatial geometric values ​​have the condition of intersecting and crossing, and the highway dataset with the closest projection distance is obtained.

5. The substation outlet location method based on spatial intersection analysis algorithm as described in claim 4, characterized in that, The highway dataset includes: The highway dataset has a length of 10. Based on the 10 relatively close highways, the nearest point to the substation center that intersects with the buffer surface is obtained, and 10 connecting lines are established.

6. The substation outlet location method based on spatial intersection analysis algorithm as described in claim 5, characterized in that, Interpolation points are added between the nearest point and the substation, and the latitude and longitude coordinates of each interpolation point are obtained, including: Based on the 10 lines established between the nearest point and the substation, interpolation points are added at 1-meter intervals to obtain the latitude and longitude coordinates (lng, lat) of each point.

7. A substation outlet location selection device based on spatial intersection analysis algorithm, applied to the method described in any one of claims 1-6, characterized in that, include: The information acquisition module is used to acquire the coordinates of the center point of the substation and generate a buffer surface by incrementally using the coordinates of the center point as the center. The intersection and overlay analysis module is used to perform intersection and overlay analysis on the buffer surface based on highway spatial information data to obtain the highway dataset with the closest projection distance; based on the highway dataset, the nearest distance point to the substation center that intersects with the buffer surface is obtained, interpolation points are added between the nearest distance point and the substation, and the latitude and longitude coordinates of each interpolation point are obtained; The terrain data retrieval module is used to obtain the elevation value of each interpolation point, calculate the actual spatial distance between each interpolation point, and determine the optimal exit location based on the actual spatial distance.

8. A computing device, comprising: Memory and processor; The memory is used to store computer-executable instructions, and the processor is used to execute the computer-executable instructions. When the computer-executable instructions are executed by the processor, they implement the steps of the substation outlet location method based on the spatial intersection analysis algorithm as described in any one of claims 1 to 6.

9. A computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, implement the steps of the substation outlet location method based on the spatial intersection analysis algorithm as described in any one of claims 1 to 6.

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