CN113656855B - Cable network digital twin model construction system for spacecraft assembly - Google Patents
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Abstract
The invention discloses a cable network digital twin model construction system for spacecraft assembly, which comprises: the system comprises a pad end cable process information acquisition module, a scanning and sensing information acquisition module, an acquisition information transmission module, a data interface module, a data analysis module, an AR and cable feedback module and a web end cable network digital model construction module. According to the invention, through continuous acquisition and intelligent analysis of the model and the operation data, the whole life cycle and the whole data chain of the cable product are covered, and the digitalized data flow of product design, manufacture and guarantee taking the unified model as a core is integrated and driven from all links of design, process and manufacture.
Description
Technical Field
The invention relates to the technical field of spacecraft assembly, in particular to a cable network digital twin model construction system for spacecraft assembly.
Background
At present, the design work of spacecraft products such as satellites in China is widely realized in three dimensions, and various design information is transmitted in the form of a three-dimensional model combined with a TC (Teamcenter) process design system and a controlled technical file of a MES (ManufacturingExecutionSystem) manufacturing execution system. Finally, the final assembly department is based on a total unit three-dimensional design model, and a cable process model is constructed through light weight processing and BOM (BillOfMaterial) reconstruction (such as adding cable plugs, cable types, cable installation stages and the like).
But from the viewpoint of digital twin model construction of the cable network, the invention also needs to solve the following technical problems:
1) The data acquisition of the cable network is a foundation for realizing the creation of a cable network twin model; in order to present real-time cable process state information to a webpage end, integrating information acquired by a pad end cable process and information acquired by a scanning sensor, and integrating data of execution record data and storehouse information in an MES/TC system, wherein the information is an information source for realizing construction of a cable network real object and a webpage end digital twin model;
2) The method comprises the steps of acquiring information, transmitting the acquired information and creating an interface, and respectively transmitting data to an MES/TC system and a database according to different requirements according to a timing and quantitative principle after the information acquisition is completed; in addition, the MES/TC system also needs to import data to the database, so that the information of the database can furthest form the omnibearing data flow of the cable network;
3) The data analysis and association of the cable network, the data of the cable network are integrated in a database, the matching analysis is needed to be carried out on single cable harnesses of specific types and the auxiliary information thereof one by one, the cable state data based on the cable lightweight model is realized, and the data chain of the cable harnesses is formed after the analysis and the serial connection, wherein the data comprises the cable installation state, the cable plug plugging data, the cable plug insurance data, the low-frequency cable welding connection and the like;
4) Creating a cable network digital twin model of the spacecraft assembly, namely integrating all data chains of all cable harnesses, and displaying a three-dimensional cable lightweight model at a webpage end by utilizing dynamic data association driving acquired in real time; and the lightweight model containing cable data is used for processing and guiding the cable data into the AR equipment, and then information feedback is carried out when the cable is installed in a real object mode, so that a bidirectional mechanism is formed, and closed-loop control is realized on site installation and inspection of the cable.
Disclosure of Invention
The invention aims at: in order to solve the problems, the cable network digital twin model building system for the spacecraft assembly is provided.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a cable network digital twin model construction system for spacecraft assembly comprises: the system comprises a pad end cable process information acquisition module, a scanning and sensing information acquisition module, an acquisition information transmission module, a data interface module, a data analysis module, an AR and cable feedback module and a web end cable network digital model construction module.
Preferably, the pad-end cable process information acquisition module reads attribute information contained in a model and a process file of the cable according to a product lightweight model with an attachment relationship of the cable.
Preferably, the scanning and sensing information acquisition module comprises an external scanning instrument and a sensor inspection facility, performs information acquisition in the field cable installation process, and comprises cable position information, cable plug plugging information and cable plug insurance information.
Preferably, the acquired information transmission module is used for uploading signed technology, archived photos and various information of cables to a target server at specified websites in a timing and quantitative manner by utilizing a wireless local area network in real time through a pad end cable technology information acquisition module, a scanning and sensing information acquisition module, in particular through a pad end tool, a scanner, a sensor and a camera, and feeding back to a system database for sorting and sorting, and correlating and storing the extracted cable type data.
Preferably, the data interface module is an interface for opening the TC system and the MES system, extracts the execution record data related to the cable, integrates the execution record data and stores the execution record data in a database, wherein the data interface module comprises cable plug plugging data, cable plug insurance data and low-frequency cable state data.
Preferably, the data analysis module reads the data information related to the cable through a database, and the multi-type data analysis obtains the data result of the cable state.
Preferably, the AR and cable feedback module is a display model of the AR obtained after data processing according to a cable lightweight model existing in a database, and performs display, layout comparison and information comparison on site and cable objects.
Preferably, the web page end cable network digital twin model building module is associated with the acquired data from top to bottom through a cable lightweight model, so that the model and the data are dynamically displayed and analyzed in real time at the web page end.
In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows:
1. the method realizes the rapid construction of the cable network digital twin model, and satisfies the systematic management, full life cycle tracing, real-time feedback driving and bidirectional connection relation of the spacecraft assembly cable.
2. The model and the operation data are continuously collected and intelligently analyzed, the whole life cycle and the whole data chain of the cable product are covered, and the digital data flow of product design, manufacture and guarantee taking the unified model as the core is integrated and driven from all links of design, process and manufacture.
Drawings
FIG. 1 is a schematic diagram of a system architecture according to an embodiment of the present invention;
fig. 2 shows a schematic workflow structure provided according to an embodiment of the invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-2, the present invention provides a technical solution:
the cable network digital twin model construction system for spacecraft assembly comprises seven modules: the system comprises a pad end cable process information acquisition module, a scanning and sensing information acquisition module, an acquisition information transmission module, a data interface module, a data analysis module, an AR and cable feedback module and a web end cable network digital model construction module.
The pad end cable process information acquisition module reads attribute information contained in a model and related process files of the cable according to a product lightweight model with an attachment relationship of the cable, achieves the function of acquiring electronic signing documents and process photos of the cable process, and can be automatically or manually triggered and submitted to a database according to actual conditions, and an MES/TC system is used for calling, analyzing and matching.
The scanning and sensing information acquisition module is used for carrying out information acquisition in the field cable installation process according to an external scanning instrument, various sensors and other inspection facilities on the field, and comprises the steps of cable position information acquisition, cable plug insurance information acquisition, acquisition of other cable related information and the like, so as to achieve the process of omnibearing information data collection of the cable.
The acquisition information transmission module is used for uploading signed technology, archived photos and various information of cables to a target server at specified websites in a timing and quantitative manner by utilizing a wireless local area network in real time through a pad end cable technology information acquisition module, a scanning and sensing information acquisition module, in particular to a pad end tool, a scanner, a sensor, a camera and the like, and feeding back to a system database for classification and arrangement, and correlating and storing the extracted cable type data. And displaying various data values of the cable state in a subsequent cooperative association mode, and performing direct jump display on a related process interface and a multimedia information interface according to the product code.
The data interface module is used for opening interfaces of the TC system and the MES system, extracting execution record data related to the cable, integrating the execution record data, storing the execution record data in the database, and carrying out unified collection by using a lightweight model at a webpage end, wherein the basic information comprises cable plug plugging data, cable plug insurance data, low-frequency cable state data and the like, and the data are data acquired by the TC/MES system in real time.
The data analysis module reads data information related to the cable through the database, analyzes the multi-type data to obtain a data result of the cable state, firstly refers to type data such as warehouse information and the like, acquires the installation condition of the cable, and analyzes the warehouse information managed by the instrument to confirm the possibility of repeated installation of the cable.
The AR and cable feedback module is used for obtaining a display model of the AR after data processing according to a cable lightweight model existing in a database, effectively displaying the AR and a cable real object on site, and realizing layout comparison of the cable real object, information comparison of the cable real object and the like; thereby realizing the feedback from data acquisition to real object installation.
The digital twin model building module of the webpage end cable network is related with the acquired data from top to bottom through a cable lightweight model, and realizes dynamic real-time display and analysis of the model and the data at the webpage end. Firstly, matching and correlating with data related to cables according to product codes of whole star-cabin board-equipment, harness codes, branch codes and the like of a whole star-cabin-cable network. The cable data and the cable related process and photo are connected in series, so that the installation state, the plug plugging state, the plug insurance state, the low-frequency cable welding state and the like of the cable state data can be subjected to real-time driving association and display on the model, and the twin model construction of the cable network is completed.
In summary, the specific workflow of the cable network digital twin model building system for spacecraft assembly provided by the embodiment is as follows:
firstly, receiving a three-dimensional design model issued by a general design system, processing the three-dimensional design model by a general assembly department to obtain a cable lightweight basic model, and reading product attributes of the cable lightweight model.
Secondly, in the pad-end cable process information acquisition module, the cable light-weight model and the XML format process file are required to be analyzed and associated, and the corresponding relation among the cable real object, the cable model and the related process is realized based on the uniqueness of the product code; according to the product attributes of all cable models at the pad end, in the process of performing the assembly process operation: the real-time switch interface captures signed documents and process photos of the cable related process. After a certain process is finished, a specified webpage can be logged in through a wireless local area network to be uploaded, and the specified webpage reaches a database and a TC/MES system. The process is to use a physical model and a pad-end cable lightweight model to collect data by using a camera, a fingerprint sensor and the like, and complete association mapping in a virtual space.
Thirdly, in the scanning and sensing information acquisition module, the information acquisition process of the field cable installation process is carried out according to the detection acquisition facilities such as the external scanning instrument, various sensors and the like on the spot, the information acquisition process comprises the position information acquisition of the cable, the plug information acquisition of the cable, the insurance information acquisition of the cable plug, the acquisition of other cable related information and the like, and the comprehensive information data collection process of the cable network is achieved. These data are ultimately uploaded to the TC/MES system and database by way of either structured or unstructured tables.
Fourth, in the information transmission module, the uploaded process signing files and archived process photos, various plug plugging and unplugging of the cable, insurance information and the like are stored in a database and an MES/TC system, and the process information can be analyzed by each system to be suitable for own storage and display modes.
Fifth, in the data interface module, the cable process data transmitted to the MES system, the TC system and the database are combined with the data acquired by the original systems in real time and stored in the systems. The database can extract the execution record data related to the cable network from the MES/TC system, and the execution record data comprises basic information such as cable installation state data, cable plug plugging state data, cable plug insurance state data and the like; and warehouse information records including instrument management records, warehouse entry records, etc.; and process file records including cable installation processes, cable plug related processes, and the like; extraction to the system database is required through the data interface module.
Sixthly, the data analysis module is used for matching the extracted common execution record data with unique identifications such as codes or codes of a prototype model and a model structure tree, and then displaying the unique identifications in the state data of each model; and extracting the related process information acquired by the cable at the pad end for the related process and the multimedia photo which belong to the cable type data, matching the code number existing when the process file is signed with the photo to be filed, and calling and then correspondingly associating the code number and the photo to be filed. In addition, the cable installation data is not directly referenced by the execution record, a certain type of data needs to be specifically analyzed, the data of warehouse management-instrument management in an MES system is taken as a source object, field values such as product codes and product names are analyzed, and the state of an instrument warehouse in the data of warehouse management-material inquiry-instrument management and the like is combined to perform secondary matching, analysis and judgment. And finally obtaining cable state data in real time, such as installed and uninstalled key values.
Seventh, in the AR and cable feedback module, according to the lightweight model of the cable existing in the database, the display model of the AR is obtained through processing, and the AR and the cable real object are effectively displayed on site, so that layout comparison of the trend of the cable real object, information comparison of the cable real object and the like are realized; and the feedback from data acquisition to real object installation is realized, and a bidirectional closed-loop mechanism is formed.
Eighth, at the web page end, the cable network digital twin model building module is firstly matched and connected in series with the cable lightweight model according to the whole star model structure tree given by the TC system from the whole star-cabin section (cable harness/cable branch) -cabin board-equipment and other product codes; then, the cable is connected in series with all relevant data of the positions of the cable bracket, the electric connector and the cable plug according to the inside of the cable; and the digital twin model is serially connected with the cable related process and the photo in turn, so that the construction of the cable network digital twin model at the webpage end is realized.
The construction of a digital twin model of the spacecraft cable network is completed, the pad end is based on a physical acquisition process, and comprehensive transmission is performed by integrating data obtained by various scanning and sensors; the cable network twin digital model which is related to the webpage end is fed back in a unified way by combining with the cable real-time state data obtained by the MES and TC system, the whole three-dimensional driving real-time display is realized, and the formation process and the behavior of the product in the real environment are mapped (simulated), monitored, diagnosed, predicted and controlled by continuously collecting and intelligently analyzing the operation data; the efficient coordination of all stages of the whole life cycle of the cable I product is fundamentally promoted, and a reference basis for the maintenance cycle can be provided. The cable network digital twin aims at penetrating the life cycle and the value chain of the product, and realizing comprehensive traceability, bidirectional sharing and interaction and data chain cooperation.
The previous description of the embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The cable network digital twin model construction system for spacecraft assembly is characterized by comprising the following components: the system comprises a pad end cable process information acquisition module, a scanning and sensing information acquisition module, an acquisition information transmission module, a data interface module, a data analysis module, an AR and cable feedback module and a web end cable network digital model construction module;
the specific workflow of the cable network digital twin model construction system for spacecraft assembly is as follows:
firstly, receiving a three-dimensional design model issued by a general design system, obtaining a cable lightweight basic model after processing by a general assembly department, and reading product attributes of the cable lightweight model;
secondly, in the pad-end cable process information acquisition module, the cable light-weight model and the XML format process file are required to be analyzed and associated, and the corresponding relation among the cable real object, the cable model and the related process is realized based on the uniqueness of the product code; according to the product attributes of all cable models at the pad end, in the process of performing the assembly process operation: collecting signed documents and process photos of cable related processes by a real-time switching interface; after a certain process is finished, a specified webpage can be logged in through a wireless local area network to be uploaded, and the specified webpage reaches a database and a TC/MES system; the process is to use a physical model and a pad-end cable lightweight model to perform data acquisition by using a camera and a fingerprint sensor, and complete association mapping in a virtual space;
thirdly, in the scanning and sensing information acquisition module, the information acquisition process of the field cable installation process is carried out according to the field external scanning instrument and various sensor inspection acquisition facilities, the information acquisition process comprises the position information acquisition of the cable, the plug information acquisition of the cable, the insurance information acquisition of the cable plug and the acquisition of other cable related information, and the process of omnibearing information data collection of the cable network is achieved; these data are finally uploaded to the TC/MES system and database by way of structured or unstructured tables;
fourthly, in the information transmission module, the uploaded process signing files and archived process photos, and various plug plugging and unplugging and insurance making information of the cable are stored in a database and an MES/TC system, and the process information can be analyzed by each system to be suitable for a storage and display mode of the system;
fifthly, in the data interface module, the cable process data transmitted to the MES system, the TC system and the database are combined with the data acquired by the original systems in real time and stored in the systems; the database extracts the execution record data related to the cable network from the MES/TC system, and comprises cable installation state data, cable plug plugging state data and fundamental information of cable plug insurance state data; the warehouse information records comprise instrument management records and warehouse entry records; and a process file record comprising a cable installation process, a cable plug related process; all the data are required to be extracted to a system database through a data interface module;
sixthly, the data analysis module is used for carrying out code number or code unique identification matching on the extracted common execution record data and a prototype model and model structure tree, and then displaying the extracted common execution record data on the state data of each attribute; for the related process and multimedia photo which belong to the cable type data, extracting the related process information collected by the cable at the pad end, matching the code number existing when the process file is signed with the photo to be filed, and calling and then correspondingly associating the code number and the photo to be filed; in addition, the cable installation data is not directly referenced by the execution record, a certain type of data is required to be specifically analyzed, the warehouse management-instrument management data in the MES system is taken as a source object, the product code number and the product name field value are analyzed, and the instrument warehouse state in the warehouse management-material inquiry-instrument management data is combined to perform secondary matching, analysis and judgment; finally obtaining cable state data in real time, such as installed and uninstalled key values;
seventhly, in the AR and cable feedback module, a display model of the AR is obtained through processing according to a cable lightweight model existing in a database, and the display model is effectively displayed with a cable object on site, so that layout comparison of the trend of the cable object and information comparison of the cable object are realized; the feedback from data acquisition to real object installation is realized, and a bidirectional closed-loop mechanism is formed;
eighth, at the web page end, the cable network digital twin model building module is firstly matched and connected in series with the cable lightweight model from the whole star-cabin section-cabin plate-equipment product code number according to the whole star model structure tree given by the TC system; then, the cable is connected in series with all relevant data of the positions of the cable bracket, the electric connector and the cable plug according to the inside of the cable; and the digital twin model is serially connected with the cable related process and the photo in turn, so that the construction of the cable network digital twin model at the webpage end is realized.
2. The spacecraft assembly-oriented cable network digital twin model construction system according to claim 1, wherein the pad-end cable process information acquisition module is a product lightweight model with an attached relationship according to a cable, and reads attribute information contained in the model and a process file of the cable.
3. The spacecraft assembly-oriented cable network digital twin model construction system of claim 1, wherein the scanning and sensing information acquisition module comprises an external scanning instrument and a sensor inspection facility, performs information acquisition in a field cable installation process, and comprises cable position information, cable plug plugging information and cable plug insurance information.
4. The system for constructing the digital twin model of the cable network for the spacecraft assembly according to claim 1, wherein the acquired information transmission module is used for uploading signed technology and archived photos and various information of the cable to a target server at a specified website in real time by utilizing a wireless local area network in a timing and quantitative manner through a pad end cable technology information acquisition module, a scanning and sensing information acquisition module, in particular through a pad end tool, a scanner, a sensor and a camera, and feeding back to a system database for sorting and storing the extracted cable type data.
5. The spacecraft assembly-oriented cable network digital twin model construction system according to claim 1, wherein the data interface module is an interface for opening a TC system and an MES system, extracts execution record data related to cables, integrates and stores the execution record data in a database, and comprises cable plug plugging data, cable plug insurance data and low-frequency cable state data.
6. The spacecraft assembly-oriented cable network digital twin model construction system of claim 1, wherein the data analysis module reads data information related to cables through a database, and the multi-type data analysis obtains data results of cable states.
7. The cable network digital twin model construction system for spacecraft assembly according to claim 1, wherein the AR and cable feedback module is a cable lightweight model existing in a database, and the AR display model is obtained after data processing and is displayed, laid out and compared with a cable real object in the field.
8. The cable network digital twin model construction system for spacecraft assembly according to claim 1, wherein the web page end cable network digital twin model construction module is associated with acquired data from top to bottom through a cable lightweight model, so that model and data dynamic real-time display and analysis at the web page end are realized.
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