CN114386207A - Suspension point-based contact network three-dimensional model construction method - Google Patents
Suspension point-based contact network three-dimensional model construction method Download PDFInfo
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Abstract
The invention provides a suspension point-based contact net three-dimensional model construction method, which comprises the following steps of: s1: according to a design drawing, determining the position of a suspension point in the contact net three-dimensional model, and S2: compiling the ID number of the suspension point, S3: building part models above and below the suspension point respectively, S4: and establishing the association relation between the suspension point and the component model by compiling the ID numbers of the component models above the suspension point and below the suspension point. The invention adopts the X-shaped model structure based on the suspension points, realizes the fusion of different data streams above the suspension points and below the suspension points, and provides a new construction idea for data concentration, information sharing and three-dimensional model centralized management.
Description
Technical Field
The invention belongs to the field of contact network model construction, and particularly relates to a suspension point-based contact network three-dimensional model construction method.
Background
The requirements of rapid development and operation quality of national railways and rail transit provide higher requirements for fine display and analysis of national railway and rail transit contact network equipment. The contact network equipment comprises a support column, a contact suspension anchor section, a central anchor knot, a support column, a geomagnetic induction device, an electric connection, a line switch, a contact suspension, a positioning device, a supporting device, an isolating switch, a lightning arrester, a contact suspension, a compensating device, an anchor dropping device, a segmented/split-phase insulator, a soft crossing, a hard crossing, an insulator and a grounding device. The connection relationship between the equipments is complicated and has no unified rule, each hundred meters contains about 80 parts, such as the Jinghushi high-speed rail, and the whole line is about 2800 kilometers, i.e. 2.8 ten thousand kilometers. The existing domestic contact net three-dimensional construction method is to construct models in the order from bottom to top, the number of bottom models is extremely large, the bottom models and the upper models are in single-line connection, and errors in the bottom models are directly related to whether the existing system can normally operate.
With the deep research and popularization of a three-dimensional model system of a contact network, a bottom layer model with huge volume and an inverted V-shaped construction mode with gradually accumulated errors need to be optimized, and the optimal solution of the number of management models and the management precision is realized. Further achieving the industry development concept of contact network system parameterization and systematization. Based on the problems, a method for quickly constructing a three-dimensional model of a contact network based on suspension points is needed, and the problems that the quantity of a middle-bottom layer model constructed by the existing three-dimensional model of the contact network is huge and the fault tolerance rate is extremely low are solved.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides a suspension point-based catenary three-dimensional model construction method, which changes the construction sequence of a three-dimensional model, utilizes the suspension point as a middle element to carry out up-and-down compatible management, realizes the association of suspension points and component models above and below the suspension points through ID numbers, reduces the model size and improves the fault tolerance rate.
The technical scheme adopted by the invention is as follows: a contact net three-dimensional model building method based on suspension points comprises the following steps:
s1: determining the position of a suspension point in the three-dimensional model of the overhead line system according to a design drawing;
s2: compiling the ID number of the suspension point, wherein the ID number of the suspension point sequentially comprises a line number, a station area, a row number, a kilometer sign, a pillar/davit number and a suspension point number; the suspension point numbers are sequentially specified according to a traditional design method;
s3: respectively constructing component models above a suspension point and below the suspension point;
s4: establishing an incidence relation between the suspension point and the component model by compiling the ID numbers of the component models above the suspension point and below the suspension point;
the ID number of the part model above the suspension point sequentially comprises a line type, a station area, a part type number and a suspension point number of the suspension point;
the ID numbers of the part models below the suspension point include line identification, station area, row identification, kilometer post, post/davit number, and part type number in that order.
Further, the component model above the suspension point comprises a contact suspension anchor section, a central anchor knot, a support column, a suspension column, a geomagnetic induction device, an electric connection, a line fork, a contact suspension, a segmentation/split phase insulator, a soft cross, a hard cross and an insulator, and the component model below the suspension point comprises a positioning device, a supporting device, an isolating switch, a lightning arrester, a compensating device, a lower anchor device and a grounding device.
Further, establishing an n-1 incidence relation between the suspension point and a component model above the suspension point, wherein n is more than or equal to 1; and establishing an association relation of 1-1 between the suspension point and the component model below the suspension point.
The working principle is as follows: the suspension point is a mark symbol for bearing the design information of the overhead line system and has a unique identifier under a three-dimensional coordinate system. Based on the X-shaped model structure of the middle layer element (suspension point), suspension point identification information (ID number of suspension point) provides pointer functionality for data transfer above and below the suspension point.
The suspension points and the above parts establish a mapping relation with the suspension points in a 1-n mode. The parts above the suspension point obtain unique three-dimensional coordinates through the incidence relation and the design principle. The mapping relationship is embodied in that the ID numbers of the parts above the suspension points contain the suspension point numbers of all the related suspension points.
The parts below the suspension point establish a mapping relation with the suspension point in a 1-1 mode. The parts below the suspension point obtain unique three-dimensional coordinates through the association relation and the design principle. The mapping relationship is embodied in that the ID numbers of the parts below the suspension points contain identification information of the related unique suspension points, namely, the ID numbers of the related suspension points contain line type, station area, row type, kilometer post and pillar/davit number.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention adopts the X-shaped model structure based on the suspension points, realizes the fusion of different data streams above the suspension points and below the suspension points, and provides a new construction idea for data concentration, information sharing and three-dimensional model centralized management.
2. According to the method, the suspension points are used as identification marks, the part models above the suspension points and below the suspension points are respectively constructed, the model quantity is determined by the number of the suspension points, the model quantity is greatly reduced, the number of hectometer-containing parts is about 2, which is about 1/40 of the existing construction method, the number of the part models required for constructing the three-dimensional model of the contact network is greatly reduced, the application range of the three-dimensional model is expanded, and the hardware requirement on equipment is reduced.
3. The invention adopts an X-shaped unidirectional construction method based on suspension points, unidirectional data transmission is carried out between the suspension points and above and below the suspension points, and the direction of the unidirectional data transmission is that the suspension points are transmitted to the positions above and below the suspension points. Error information below the suspension point cannot be transmitted to the suspension point and above the suspension point, and the error tolerance of the three-dimensional model and the basic data of the contact network is greatly improved and the complexity of the equipment management of the contact network is reduced.
Drawings
FIG. 1 is a flow chart of an embodiment of the present invention;
FIG. 2 is a model diagram of a build according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The embodiment of the invention provides a suspension point-based catenary three-dimensional model building method, which comprises the following steps of:
s1: and determining the position of the suspension point in the three-dimensional model of the overhead line system according to a design drawing.
S2: and compiling the ID number of the suspension point, wherein the ID number of the suspension point sequentially comprises a line number, a station area, a row number, a kilometer sign, a pillar/davit number and a suspension point number. The suspension point numbers are sequentially assigned according to a design drawing and a traditional design method.
S3: the method comprises the steps of respectively constructing component models above a suspension point and below the suspension point, wherein the component models above the suspension point comprise a contact suspension anchor section, a central anchor knot, a support column, a suspension column, a geomagnetic induction device, an electric connection, a line fork, a contact suspension, a segmentation/split-phase insulator, a soft cross, a hard cross and an insulator, and the component models below the suspension point comprise a positioning device, a supporting device, an isolating switch, a lightning arrester, a compensating device, a lower anchor device and a grounding device.
S4: and establishing an incidence relation between the suspension point and the component model by compiling the ID numbers of the component models above the suspension point and below the suspension point, and completing the construction of the contact network three-dimensional model.
Establishing n-1 incidence relation between the suspension point and the part model above the suspension point, wherein n is more than or equal to 1; and establishing an association relation of 1-1 between the suspension point and the component model below the suspension point. The ID numbers of the component models above the suspension point include, in order, the line type, the station area, the component type number, and the suspension point number of the suspension point, and the ID numbers of the component models below the suspension point include, in order, the line type, the station area, the line type, the kilometer post, the post/davit post number, and the component type number.
The model constructed by the method is shown in fig. 2, and the association relationship between the suspension point and the component model will be described with reference to fig. 2. In fig. 2, suspension point a is located on suspension post 001#, and suspension point B and suspension point C are located on suspension post 002 #. Suspension points D and E are located on strut 003 #. The electrical connection 1 is suspended between suspension point a and suspension point B. The electrical connection 2 is suspended between suspension point B and suspension point C. The electrical connection 3 is suspended between the suspension point D and the suspension point E. And an isolating switch is arranged at the suspension point A.
The ID number of the suspension point A is HKX-HYZ-01-254.042-001-00018, wherein HKX is a line-Hu Kun line, HYZ is a station area-lake edge station, 01 is a line-up line, 254.042 is a kilometer scale, 001 is a hanging column number, and 00018 is a suspension point number.
The ID number of the davit 001# consists of: HKX-HYZ-006- [00018], wherein HKX is line Hu Kun line, HYZ is station-lake edge station, 006 is part number of hanging column, 00018 is associated hanging point number. The 1-1 mapping incidence relation of the suspension column 001# is realized through common fields of the line, the station area and the suspension point number and the suspension point A.
The ID number of the suspension point B is HKX-HYZ-02-254.042-002-.
The ID number of electrical connection 1 consists of: HKX-HYZ-008- [00018,00020], wherein HKX is a line-Hu Kun line, HYZ is a station-lake edge station, 008 is a part type number of an electric connection, and 00018,00020 is an associated suspension point number. The electric connection 1 realizes the incidence relation of 1-2 mapping by the common fields of the line identity, the station area and the suspension point number and the suspension point A and the suspension point B.
The ID number of the isolating switch comprises: HKX-HYZ-01-254.042-001-00018-2011GK, wherein HKX is a line-Hu-Kun line, HYZ is a station area-lake edge station, 01 is a line-up line, 254.042 is a kilometer scale, 001 is a hanging column number, 00018 is a hanging point number, and 2011GK is a part type number of the isolating switch. The isolation switch realizes the incidence relation of 1-1 mapping by the common fields of the line identity, the station area, the row identity, the kilometer post and the suspension post number and the suspension point A.
The ID number of the suspension point D is HKX-HYZ-04-254.884-003-00021, wherein HKX is a line-Hu Kun line, HYZ is a station area-lake edge station, 04 is a line-others, 254.884 is a kilometer sign, 003 is a strut number, and 00021 is a suspension point number.
The ID number of the suspension point E is HKX-HYZ-02-254.928-003-00022, wherein HKX is a line-Hu Kun line, HYZ is a station area-lake edge station, 02 is a line-descending line, 254.928 is a kilometer scale, 003 is a column number, and 00022 is a suspension point number.
The ID number of strut 003# consists of: HKX-HYZ-007- [00021, 00022], wherein HKX is a line Hu Kun line, HYZ is a station-lake edge station, 007 is a part type number of a strut, and 00021, 00022 are associated suspension point numbers. The pillar 003# realizes the association of 1-2 mapping with the suspension point D and the suspension point E through the common fields of the wire identity, the station area and the suspension point number.
The present invention has been described in detail with reference to the embodiments, but the description is only illustrative of the present invention and should not be construed as limiting the scope of the present invention. The scope of the invention is defined by the claims. The technical solutions of the present invention or those skilled in the art, based on the teaching of the technical solutions of the present invention, should be considered to be within the scope of the present invention, and all equivalent changes and modifications made within the scope of the present invention or equivalent technical solutions designed to achieve the above technical effects are also within the scope of the present invention.
Claims (3)
1. A contact network three-dimensional model construction method based on suspension points is characterized by comprising the following steps: the method comprises the following steps:
s1: determining the position of a suspension point in the three-dimensional model of the overhead line system according to a design drawing;
s2: compiling the ID number of the suspension point, wherein the ID number of the suspension point sequentially comprises a line number, a station area, a row number, a kilometer sign, a pillar/davit number and a suspension point number;
s3: respectively constructing component models above a suspension point and below the suspension point;
s4: establishing an incidence relation between the suspension point and the component model by compiling the ID numbers of the component models above the suspension point and below the suspension point;
the ID number of the part model above the suspension point sequentially comprises a line type, a station area, a part type number and a suspension point number of the suspension point;
the ID numbers of the part models below the suspension point include line identification, station area, row identification, kilometer post, post/davit number, and part type number in that order.
2. The suspension point-based catenary three-dimensional model building method according to claim 1, characterized in that: the component model above the suspension point comprises a contact suspension anchor section, a central anchor knot, a support column, a suspension post, a geomagnetic induction device, an electric connection, a line fork, a contact suspension, a segmented/split-phase insulator, a soft cross, a hard cross and an insulator,
the part model below the suspension point comprises a positioning device, a supporting device, an isolating switch, a lightning arrester, a compensating device, an anchoring device and a grounding device.
3. The suspension point-based catenary three-dimensional model building method according to claim 1, characterized in that: establishing n-1 incidence relation between the suspension point and the part model above the suspension point, wherein n is more than or equal to 1; and establishing an association relation of 1-1 between the suspension point and the component model below the suspension point.
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