CN111274680B - Method for acquiring logistics transportation simulation path of digital factory - Google Patents
Method for acquiring logistics transportation simulation path of digital factory Download PDFInfo
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- CN111274680B CN111274680B CN202010038674.6A CN202010038674A CN111274680B CN 111274680 B CN111274680 B CN 111274680B CN 202010038674 A CN202010038674 A CN 202010038674A CN 111274680 B CN111274680 B CN 111274680B
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Abstract
The invention discloses a method for acquiring a digital factory logistics transportation simulation path, which comprises the following steps: (1) completing logistics transportation path layout design in CAD; (2) reading data information corresponding to the paths in the CAD; (3) Converting the path data information to obtain identifiable data information corresponding to the Simulation software plant formulation and completing the generation of the path model in the plant formulation. The invention has the advantages that: the layout path data in the CAD is obtained in an automatic reading mode and is automatically imported into simulation software to generate a path model, so that the speed of data input before simulation is improved, the simulation efficiency is improved, and the defect of time consumption during manual input is reduced.
Description
Technical Field
The invention relates to the field of simulation, in particular to a method for acquiring a logistics transportation simulation path of a digital factory.
Background
In recent years, the domestic automobile manufacturing industry is rapidly developed and the scale is continuously enlarged, under the condition, automobile enterprises make quick response and decision according to market demands, new products are pushed out, the production preparation period of the products is effectively shortened, the production preparation risk is reduced, and the method is a necessary means for improving the competitiveness of the enterprises. The simulation technology becomes an important supporting tool for analyzing and solving the problems in various industries increasingly, and plays a great role in the aspects of early planning of engineering, investment balance analysis, production logistics operation control, inventory control, job sequencing, resource allocation, flow analysis, improvement and the like.
In the prior art, a welding workshop is a complex system which consists of a transverse and longitudinal crossed logistics transportation path and a production system. In the early design stage, according to the process scheme, the point-to-point logistics transmission scheme from the welding storage area to each production line station is confirmed, so that logistics can meet the requirements of a production system. Otherwise, once a bottleneck is generated on a certain node, chain reaction is caused, so that the whole productivity of the production system is directly reduced, and investment loss is caused. In the prior art, a path layout diagram of a logistics transportation and production system of a welding workshop is generally required to be planned, then a motion path of a planned model is required to be manually imported into simulation software, path selection and generation are performed in the simulation software according to the path in the layout diagram in a manual mode, and the mode is large in workload for manual work, easy to make mistakes and high in time consumption.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a method for acquiring a simulation path of digital factory logistics transportation, which is used for importing path mode data into simulation software for simulation in an automatic reading mode.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: a method for acquiring a digital factory logistics transportation simulation path comprises the following steps:
(1) Completing the layout design of the logistics transportation path in CAD;
(2) Reading data information corresponding to the paths in the CAD;
(3) Converting the path data information to obtain identifiable data information corresponding to the Simulation software plant formulation and completing the generation of the path model in the plant formulation.
In step (2), reading data corresponding to the path in the CAD includes: reading points, reading lines and path attributes, wherein the reading points refer to reading coordinate information of each point in a path in the CAN; reading the line refers to reading the starting point coordinates and the end point coordinates of the line segment corresponding to the path, and recording the attribute of the read path; the path attribute comprises a path type and a path direction corresponding to the line segment.
In step (3), converting the data corresponding to the path in the CAD includes: and converting the coordinate data of each point corresponding to the line segment path in the read CAD from a coordinate system in the CAD into the coordinate data under the corresponding plant coordinate system in the simulation software plant.
In the step (3), the data information corresponding to the converted path is read through an Activex interface in simulation software plantform and automatically associated to generate all path models.
The invention has the advantages that: the layout path data in the CAD is obtained in an automatic reading mode and is automatically imported into simulation software to generate a path model, so that the speed of data input before simulation is improved, the simulation efficiency is improved, and the defect of time consumption during manual input is reduced.
Drawings
The contents of the drawings and the marks in the drawings of the present specification are briefly described as follows:
FIG. 1 is a schematic diagram of the present invention for reading path data in CAD;
FIG. 2 is a flow chart of the simulation software of the present invention reading converted data.
Detailed Description
The following detailed description of the invention refers to the accompanying drawings, which illustrate preferred embodiments of the invention in further detail.
A method for acquiring a digital factory logistics transportation simulation path comprises the following steps:
(1) Completing the layout design of the logistics transportation path in CAD; firstly, designing a path required for completing transportation according to information such as stations in an actual workshop; completing design layout by using common tools such as points, lines and the like in CAD, and generating paths;
(2) Reading data information corresponding to the paths in the CAD; reading path information in CAD by developing a software/plug-in, realizing data acquisition communication by utilizing CAD Com communication API of CAD software in the reading process, and recording a designed layout path by reading point coordinate information corresponding to a line segment path and the attribute of the path in CAD; reading data corresponding to the path in the CAD comprises the following steps: reading points, reading lines and reading path attributes, wherein the reading points refer to reading coordinate information of each point in a path in CAD, and the point coordinates refer to coordinate information under a CAD coordinate system; reading the line refers to reading the starting point coordinates and the end point coordinates of the line segment corresponding to the path, and recording the attribute of the read path; the path attribute comprises a path type and a path direction corresponding to the line segment. The path types include types corresponding to paths such as unidirectional/bidirectional channels/continuous/decentralized paths.
(3) Converting the path data information to obtain identifiable data information corresponding to the Simulation software plant formulation and completing the generation of the path model in the plant formulation. Wherein converting the data corresponding to the path in the CAD comprises: and converting the coordinate data of each point corresponding to the line segment path in the read CAD from a coordinate system in the CAD into the coordinate data under the corresponding plant coordinate system in the simulation software plant. And researching the difference and the relation between the Plant coordinate system and the CAD coordinate system, converting the coordinate and angle information in CAD into an intermediate format by software according to the characteristics, reading and processing intermediate format data by Activex written in the Plant, and drawing CAD model data in the Plant to complete the importing of a data path. And reading data information corresponding to the converted paths through an Activex interface in simulation software plaintform, and automatically associating to generate all path models.
As shown in fig. 1 and 2, a communication bridge is firstly set up between CAD software and a placement module, and a path of a design layout in CAD is automatically imported into simulation software, so that the defect that the manual importing of data in CAD into simulation software takes more time is avoided. According to the method, the coordinate information of each point of a path laid out in the CAD is read through communication interaction of newly developed software through COM of the AutoCAD, and as the coordinates of each point of the path laid out in the AUTOCAD can be automatically stored in the CAD software actually, related coordinate data can be read only by calling a corresponding function or instruction, and the coordinate data in the CAD can be read as shown in FIG. 1 as the called instruction function. Collecting all parameters such as the point coordinate data and the path attribute corresponding to the path segment data, converting the point coordinate under the CAD coordinate system into the coordinate under the Plant coordinate system (converting the coordinate from Cad coordinate to Plant coordinate rule), and outputting, wherein the point coordinate data can be output into xls file. In the plausibility, calling an active X plug-in active X excel. Application of plausibility software to create links with XLS files, then creating a data table container to receive the XLS files, selecting different models according to path types contained in the XLS files, creating corresponding path models by utilizing coordinate information corresponding to the paths, and after the models are created, operating an object. Connection automation plug-in to automatically associate the models to form finished path models; and automatically generating all the data until the final group of data completes the path model generation, and completing the path generation of all the path models of the model, thereby realizing the automatic importing of the path layout data in the CAD into the placement so as to facilitate the placement to perform simulation operations such as simulation verification and the like. Modeling, naming and linking are directly and quickly performed in Plant simulation software, so that the layout man-hour of Plant simulation personnel is greatly saved. Wherein the data acquisition comprises a reading point
It is obvious that the specific implementation of the present invention is not limited by the above-mentioned modes, and that it is within the scope of protection of the present invention only to adopt various insubstantial modifications made by the method conception and technical scheme of the present invention.
Claims (1)
1. A method for acquiring a digital factory logistics transportation simulation path is characterized by comprising the following steps of: the method comprises the following steps:
(1) Completing the layout design of the logistics transportation path in CAD;
(2) Reading data information corresponding to the paths in the CAD;
(3) Converting the path data information to obtain identifiable data information corresponding to the Simulation software plant formulation and completing the generation of a path model in the plant formulation; in step (2), reading data corresponding to the path in the CAD includes: reading points, reading lines and reading path attributes, wherein the reading points refer to reading coordinate information of each point in a path in CAD; reading the line refers to reading the starting point coordinates and the end point coordinates of the line segment corresponding to the path, and recording the attribute of the read path; the path attribute comprises a path type and a path direction corresponding to the line segment; in step (3), converting the data corresponding to the path in the CAD includes: converting the coordinate data of each point corresponding to the line segment path in the CAD from a coordinate system in the CAD into the coordinate data under a corresponding plant coordinate system in the simulation software plant; in the step (3), reading data information corresponding to the converted paths through an Activex interface in simulation software plaintsimulation, and automatically associating to generate all path models;
the called instruction function reads the coordinate data in the CAD;
collecting all parameters such as the point coordinate data and the path attribute corresponding to the path segment data, converting the point coordinate under the CAD coordinate system into the coordinate under the Plant coordinate system (converting the coordinate from Cad coordinate to Plant coordinate rule), and outputting, wherein the point coordinate data can be output into xls file; in the plausibility, calling an active X plug-in active X excel. Application of plausibility software to create links with XLS files, then creating a data table container to receive the XLS files, selecting different models according to path types contained in the XLS files, creating corresponding path models by utilizing coordinate information corresponding to the paths, and after the models are created, operating an object. Connection automation plug-in to automatically associate the models to form finished path models; all data are automatically generated until the final group of data completes path model generation, and path generation of all path models of the models is completed, so that path layout data in CAD are automatically imported into a plausibility map, and simulation operations such as simulation verification and the like are facilitated for the plausibility map;
modeling, naming and linking are directly and quickly performed in Plant simulation software, so that the layout man-hour of Plant simulation personnel is greatly saved, and reading points are included when data acquisition is performed.
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| EP2110762A1 (en) * | 2008-04-18 | 2009-10-21 | Siemens Aktiengesellschaft | Digital plant structure method and system thereof |
| CN104778290A (en) * | 2014-01-14 | 2015-07-15 | 吉林大学 | Combination import method of scene drawing in passenger terminal simulation system |
| CN104942808A (en) * | 2015-06-29 | 2015-09-30 | 广州数控设备有限公司 | Robot motion path off-line programming method and system |
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|---|---|---|---|---|
| EP2110762A1 (en) * | 2008-04-18 | 2009-10-21 | Siemens Aktiengesellschaft | Digital plant structure method and system thereof |
| CN104778290A (en) * | 2014-01-14 | 2015-07-15 | 吉林大学 | Combination import method of scene drawing in passenger terminal simulation system |
| CN104942808A (en) * | 2015-06-29 | 2015-09-30 | 广州数控设备有限公司 | Robot motion path off-line programming method and system |
Non-Patent Citations (3)
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| 于强 ; 李祥松 ; .数字化工厂布局仿真技术应用研究.机械与电子.2015,(第11期),全文. * |
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