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WO2020221656A1 - Method, apparatus and system for acquiring digitized data of factory - Google Patents

Method, apparatus and system for acquiring digitized data of factory Download PDF

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Publication number
WO2020221656A1
WO2020221656A1 PCT/EP2020/061374 EP2020061374W WO2020221656A1 WO 2020221656 A1 WO2020221656 A1 WO 2020221656A1 EP 2020061374 W EP2020061374 W EP 2020061374W WO 2020221656 A1 WO2020221656 A1 WO 2020221656A1
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WO
WIPO (PCT)
Prior art keywords
data
production line
model
workstations
acquiring
Prior art date
Application number
PCT/EP2020/061374
Other languages
French (fr)
Inventor
Christian Grosch
Shao Qu ZHENG
Xi Wang
Dai Chen PU
Qi Wang
Liang Zhang
Yang Wang
Zhou Yuan
Jun Jie Chen
Original Assignee
Siemens Aktiengesellschaft
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO2020221656A1 publication Critical patent/WO2020221656A1/en

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Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
    • G05B19/41865—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by job scheduling, process planning, material flow
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
    • G05B19/4183—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by data acquisition, e.g. workpiece identification
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
    • G05B19/41885—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by modeling, simulation of the manufacturing system
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/31—From computer integrated manufacturing till monitoring
    • G05B2219/31465—Determine which variables of the system to be monitored
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/32—Operator till task planning
    • G05B2219/32252—Scheduling production, machining, job shop
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

Definitions

  • the present application relates to the field of industrial production control. Specifically, the present application relates to a method, apparatus and system for acquiring digitized data of a factory.
  • Factory digitization is the trend of modern production. More and more data related to production will be collected in factories such that production management managers, product designers and engineers monitor the production status in real time, find out production abnormality events, improve product designs and optimize production processes, and can also provide end consumers with better added values. For the digitization of factories, how to collect the data in these factories simply and at low cost is an important issue.
  • Embodiments of the present application provide a method, apparatus and system for acquiring digitized data of a factory, so as to solve at least the problems in the prior art that the period of acquiring digitized data of a factory is long and the cost for acquiring digitized data of different factories cannot be effectively reduced.
  • a method for acquiring digitized data of a factory comprising: acquiring information about a production line of the factory, the information at least representing one or more workstations comprised in the production line and relationships among the workstations, and the workstations being facilities or locations for producing products in the production line; determining a production line model based on the information, the production line model comprising one or more virtual workstations corresponding to the one or more workstations and virtual relationships among the virtual workstations corresponding to the relationships among the workstations; determining a logic processing model according to the digitized data to be acquired, the logic processing model defining one or more pieces of field data of the production line required to calculate the digitized data and a corresponding logic processing algorithm; determining, according to the required one or more pieces of field data of the production line, an interface model for acquiring the field data, the interface model defining an interface for acquiring the field data from the production line according to the production line model; acquiring the field data from the
  • a mapping relationship is established between a production line of a factory and a production line model, corresponding field data is acquired from the production line according to the digitized data to be acquired and the mapping relationship, and then the digitized data to be acquired is calculated according to a logic processing algorithm.
  • This technical solution can be applied to production lines of different factories, thereby saving the time for acquiring digitized data of a factory and reducing the cost for acquiring the digitized data.
  • the method according to the exemplary embodiment of the present application further comprises: performing a preprocessing algorithm on the field data after acquiring the field data and before acquiring the digitized data, the preprocessing algorithm being used to convert the original data of the field data into one or more pieces of preprocessed data for calculating the digitized data.
  • acquiring the digitized data based on the one or more pieces of field data according to the logic processing algorithm further comprises : processing the one or more pieces of preprocessed data according to a first algorithm to acquire intermediate data; and processing the intermediate data according to a second algorithm to acquire the digitized data.
  • the digitized data that requires complex processing is acquired according to the field data obtained from the factory.
  • the interface model defines the interface for acquiring the field data from the production line according to the production line model at least by defining the type or mode of acquisition of the required one or more pieces of field data of the production line.
  • the interface for acquiring the field data can be determined based on the digitized data to be acquired.
  • the information further represents operations performed at the workstations and buffers among the workstations, and the production line model further comprises virtual buffers corresponding to the buffers; and the field data comprises data acquired from the workstations in the production line and/or data acquired from the buffers.
  • a data source for acquiring the field data to acquire the digitized data of the factory is determined.
  • acquiring the field data from the production line according to the interface model and the production line model comprises: determining the virtual workstations and/or virtual buffers corresponding to the field data according to the interface model; determining the workstations and/or buffers in the production line corresponding to the virtual workstations and/or virtual buffers according to the production line model; and acquiring the field data from the workstations and/or buffers through the interface for the field data.
  • one of the virtual workstations in the production line model corresponds to one or more workstations in the production line .
  • the method according to the exemplary embodiment of the present application further comprises: transmitting, after acquiring the digitized data through calculation, the digitized data to a display device and displaying the digitized data.
  • the display of the required digitized data is provided to the users such as factory managers, product designers and engineers .
  • an apparatus for acquiring data of a factory comprising: a production line information acquisition module configured to acquire information about a production line of the factory, the information at least representing one or more workstations comprised in the production line and relationships among the workstations, and the workstations being facilities or locations for producing products in the production line; a production line model determination module configured to determine a production line model based on the information, the production line model comprising one or more virtual workstations corresponding to the one or more workstations and virtual relationships among the virtual workstations corresponding to the relationships among the workstations; a logic processing model determination module configured to determine a logic processing model according to the digitized data to be acquired, the logic processing model defining one or more pieces of field data of the production line required to calculate the digitized data, and a corresponding logic processing algorithm; an interface model determination module configured to determine, according to the required one or more pieces of field data of the production line, an interface model for acquiring the field data, the interface model
  • a mapping relationship is established between a production line of a factory and a production line model, corresponding field data is acquired from the production line according to the digitized data to be acquired and the mapping relationship, and then the digitized data to be acquired is calculated according to a logic processing algorithm.
  • This technical solution can be applied to production lines of different factories, thereby saving the time for acquiring digitized data of a factory and reducing the cost for acquiring the digitized data.
  • the apparatus further comprises: a preprocessing module configured to perform a preprocessing algorithm on the field data after acquiring the field data and before acquiring the digitized data, the preprocessing algorithm being used to convert the original data of the field data into one or more pieces of preprocessed data for calculating the digitized data.
  • a preprocessing module configured to perform a preprocessing algorithm on the field data after acquiring the field data and before acquiring the digitized data, the preprocessing algorithm being used to convert the original data of the field data into one or more pieces of preprocessed data for calculating the digitized data.
  • acquiring the digitized data based on the one or more pieces of field data according to the logic processing algorithm further comprises : processing, by the digitized data calculation module, the one or more pieces of preprocessed data according to a first algorithm to acquire intermediate data; and processing, by the digitized data calculation module, the intermediate data according to a second algorithm to acquire the digitized data.
  • the digitized data that requires complex processing is acquired according to the field data obtained from the factory.
  • a system for acquiring data of a factory comprising: one or more workstations, the workstations being facilities or locations for producing products in a production line of the factory; and an apparatus for acquiring data of the factory, which comprises : a production line information acquisition module configured to acquire information about the production line of the factory, the information representing one or more workstations comprised in the production line, operations performed at the workstations, buffers among the workstations, and relationships among the workstations; a production line model determination module configured to determine a production line model based on the information, the production line model comprising one or more virtual workstations corresponding to the one or more workstations and virtual relationships among the virtual workstations corresponding to the relationships among the workstations; a logic processing model determination module configured to determine a logic processing model according to the digitized data to be acquired, the logic processing model defining one or more pieces of field data of the production line required to calculate the digitized data and a corresponding logic processing algorithm
  • a mapping relationship is established between a production line of a factory and a production line model, corresponding field data is acquired from the production line according to the digitized data to be acquired and the mapping relationship, and then the digitized data to be acquired is calculated according to a logic processing algorithm.
  • This technical solution can be applied to production lines of different factories, thereby saving the time for acquiring digitized data of a factory and reducing the cost for acquiring the digitized data.
  • the apparatus further comprises: a preprocessing module configured to perform a preprocessing algorithm on the field data after acquiring the field data and before acquiring the digitized data, the preprocessing algorithm being used to convert the original data of the field data into one or more pieces of preprocessed data for calculating the digitized data.
  • a preprocessing module configured to perform a preprocessing algorithm on the field data after acquiring the field data and before acquiring the digitized data, the preprocessing algorithm being used to convert the original data of the field data into one or more pieces of preprocessed data for calculating the digitized data.
  • a technical solution which involves determining a mapping relationship between the production line and the production line model, determining an interface for acquiring field data according to digitized data of the factory to be acquired, acquiring the field data from the corresponding data source of the production line where the field data needs to be acquired, and calculating the field data according to a logic processing algorithm corresponding to the digitized data to be acquired, so as to solve at least the technical problems of difficulty in acquiring digitized data of different factories and high cost for acquiring the digitized data, thereby achieving the technical effects of saving the time for acquiring the digitized data of the factory, acquiring a large amount of different pieces of digitized data, reducing the requirements for worker abilities to acquire the digitized data, and saving the cost for acquiring the digitized data.
  • Fig. 1 is a flowchart of a method for acquiring digitized data of a factory according to an embodiment of the present application
  • Fig. 2 is a schematic diagram of a production line model of a factory according to an exemplary embodiment of the present application
  • Fig. 3 is a schematic diagram of preprocessing original data according to an exemplary embodiment of the present application
  • Fig. 4 is a schematic diagram of an interaction relationship between an interface model and a logic processing model according to an exemplary embodiment of the present application
  • Fig. 5 is a schematic diagram of a mapping model according to an exemplary embodiment of the present application.
  • Fig. 6 is a block diagram of an apparatus for acquiring data of a factory according to an embodiment of the present application.
  • Fig. 7 is a block diagram of a system for acquiring data of a factory according to an embodiment of the present application.
  • S102 Acquiring information about a production line of a factory
  • S104 Determining a production line model based on the information
  • S106 Determining a logic processing model according to digitized data to be acquired
  • S112 Acquiring the digitized data based on the one or more pieces of field data according to a logic processing algorithm
  • 602 Production line information acquisition module
  • Interface model determination module
  • a method for acquiring digitized data of a factory is provided.
  • Fig. 1 is a flowchart of a method for acquiring digitized data of a factory according to an embodiment of the present application. As shown in Fig.
  • the method for acquiring digitized data of a factory comprises: step S102 of acquiring information about a production line of the factory, the information at least representing one or more workstations comprised in the production line and relationships among the workstations, and the workstations being facilities or locations for producing products in the production line; step S104 of determining a production line model based on the information, the production line model comprising one or more virtual workstations corresponding to the one or more workstations and virtual relationships among the virtual workstations corresponding to the relationships among the workstations; step S106 of determining a logic processing model according to the digitized data to be acquired, the logic processing model defining one or more pieces of field data of the production line required to calculate the digitized data and a corresponding logic processing algorithm; step S108 of determining, according to the required one or more pieces of field data of the production line, an interface model for acquiring the field data, the interface model defining an interface for acquiring the field data from the production line according to the production line model;
  • a flexible mapping model for acquiring digitized data of a factory includes a production line model, an interface device model, and a logic processing model.
  • Fig. 2 is a schematic diagram of a production line model of a factory- according to an exemplary embodiment of the present application.
  • 101, 103, 105, 107, and 109 represent workstations in the production line.
  • the workstation 101 first performs production work, and the workstations 103, 105, 107, and 109 sequentially perform the production work after the workstation 101.
  • the information is acquired from the production line of the factory in step S102 to establish a production line model in step S104.
  • the production line model represents a mapping relationship between the production line of the factory and the virtual production line.
  • the production line model includes virtual workstations, virtual operations, and virtual workflows, which correspond to the workstations, operations, and workflows in the production line, respectively, such that users using the production line model learn about the production line of the factory without arriving at the factory site, and know about the source of the field data from the production line.
  • the virtual workstations may represent physical workstations on the factory site, such as production facilities or locations for production tasks. Each virtual workstation may also represent a group of physical workstations on the factory site to simplify the production line model.
  • 301, 303, and 305 represent virtual workstations in the production line model.
  • the virtual workstation 301 corresponds to the workstation 101
  • the virtual workstation 305 corresponds to the workstation 109, indicating from which workstation the corresponding field data should be acquired according to the production line model when the field data is acquired.
  • the virtual workstations in the production line model may correspond to the workstations in the production line on a one-to-one basis.
  • one virtual workstation in the production line model may correspond to one or more workstations in the production line.
  • the virtual workstation 303 corresponds to the workstations 103, 105, and 107; under such a mapping relationship, the workstations 103, 105, and 107 provide the same type of field data, that is, field data corresponding to the virtual workstation 303; and corresponding to the relationships among the workstations in the production line, the virtual workstations 301, 303, and 305 have a virtual relationship (virtual workflow) , which represents the workflow in the production process, and may also represent a connection relationship. In this way, the production line model is simplified, and the amount of data processing during data acquisition is reduced.
  • the description of a virtual workstation includes the ID, name, location, type (for example, facility, whether it is manual) , production capacity (for example, products that can be produced, the number of products that can be produced), etc. of the corresponding workstation.
  • the virtual operations can describe the steps of producing products, and the products may be products to be finally delivered to end customers or part of final products.
  • the steps for producing products in a production line can be performed by one or more workstations or one workstation can perform one or more steps of producing products
  • the virtual operations can be performed by one or more virtual workstations, and one virtual workstation can also perform one or more virtual operations.
  • the descriptions of the virtual operations include the ID, name, required materials, tasks, cycle time, work instructions, required facilities, required worker capabilities, previous operations, next operation, etc. of the corresponding steps of producing products.
  • the workflow describes the relationships among the workstations, and the virtual workflow correspondingly describes the virtual relationships among the virtual workstations.
  • the virtual workflow may be extracted from the data related to the virtual operations, or defined separately to reflect the order of production of the virtual workstations.
  • the description of the virtual workflow includes previous workstations, next workstation, the size of a buffer, etc.
  • the virtual workflow may have a sequential relationship, a parallel relationship, a cyclic relationship, etc. according to the production process.
  • an interface model is provided in the mapping model.
  • the interface model describes how the data is acquired from the production line and how the original data is preprocessed before being processed by logic.
  • the interface model includes two parts: data uploading and data preprocessing .
  • the data uploading part describes how and where the data should be collected.
  • the description of the data uploading part includes the name of data, the type of data, the mode of collection of data (pushing or polling) , the frequency of collection of data, the mode of communication, related parameters, etc.
  • PLC programmable logic controller
  • the description of the data uploading part may include [PLC type, IP address, and data block] , thereby defining a specific type of PLC data to be collected, an IP address used by the PLC to be collected, and a data block of the data to be collected.
  • the description of the data uploading part includes [IP address, and port ID], so as to represent an IP address and a specific port for collecting the data.
  • the required data can be collected from the production line in a suitable way at a required location.
  • the interface model defines the interface for acquiring the field data from the production line according to the production line model at least by defining the type or mode of acquisition of the required one or more pieces of field data of the production line. In this way, the interface for acquiring the field data can be determined based on the digitized data to be acquired.
  • the data preprocessing part describes how the collected original data is preprocessed and formatted before same is sent to a processing module.
  • the description of the data preprocessing part mainly includes processing modes (processing algorithms ) , input and input data types, output and output data types, simple functional descriptions, etc.
  • one preprocessing algorithm in the data preprocessing part has one input, for example, original data collected from the PLC, a sensor, etc.
  • the original data is preprocessed to obtain one or more outputs, which can be used for different processing purposes, so as to obtain different pieces of required digitized data of the factory.
  • one copy of original data can be processed by multiple preprocessing algorithms, and converted into one or more pieces of preprocessed data used to calculate digitized data. Fig.
  • FIG. 3 is a schematic diagram of preprocessing original data according to an exemplary embodiment of the present application.
  • a first preprocessing algorithm, a second preprocessing algorithm, and a third preprocessing algorithm are respectively performed on the original data.
  • First preprocessed data can be obtained through the first preprocessing algorithm
  • second preprocessed data can be obtained through the second preprocessing algorithm
  • third preprocessed data can be obtained through the third preprocessing algorithm
  • three copies of third preprocessed data are output according to actual needs for the purpose of obtaining different digitized data.
  • a preprocessing algorithm is performed on the field data after the field data is acquired and before the digitized data is acquired, the preprocessing algorithm being used to convert the original data of the field data into one or more pieces of preprocessed data for calculating the digitized data.
  • required original data can be acquired from the field data according to different data requirements, and different required digitized data can be obtained from the original data.
  • products are conveyed from a conveyor belt of a production line, and each of the products is attached with an RFID tag or a two-dimensional code, which represents the ID of the product.
  • the acquired original data is regarding the product IDs obtained by reading the RFID tags or scanning the two-dimensional codes.
  • the preprocessing algorithm Value () is performed on the product IDs as the original data to obtain detected product IDs.
  • the preprocessing algorithm Value_unique ( ) is performed on the product IDs as the original data to obtain product IDs, but not repeated IDs.
  • the preprocessing algorithm Counter_unique ( ) is performed on the product IDs as the original data to obtain the actual number of products.
  • a logic processing model is provided in the mapping model.
  • the logic processing model describes the logic processing of the input data, and is used to obtain the digitized data of the factory concerned by users such as production management managers, product designers, and engineers.
  • the input data in the logic processing model is the output data of the data preprocessing part in the interface model.
  • the logic processing model usually requires multiple pieces of input data, that is, acquiring multiple pieces of preprocessed data from the interface model.
  • the logic processing model includes/defines a logic processing algorithm, the logic processing algorithm is related to the digitized data, and the output data is regarding, for example, the total efficiency of facilities, the yield of products, a high temperature alarm, or other key performance indicators (KPIs) concerned during the production process.
  • KPIs key performance indicators
  • the logic processing algorithm can be adjusted and changed as needed.
  • the description of the logic processing model includes logic processing algorithms, input data and input data types, output data and output data types, output interfaces, simple functional descriptions, etc.
  • the output of one logic processing model can be used as the input of another logic processing model.
  • acquiring the digitized data based on the one or more pieces of field data according to the logic processing algorithm further comprises: processing the one or more pieces of preprocessed data according to a first algorithm to acquire intermediate data; and processing the intermediate data according to a second algorithm to acquire the digitized data.
  • the output interface defines how the output of digitized data is acquired from the logic processing model, for example, through an API, an OPC, an OPC UA, a web server, etc.
  • Fig. 4 is a schematic diagram of an interaction relationship between an interface model and a logic processing model according to an exemplary embodiment of the present application.
  • a first preprocessing algorithm and a second preprocessing algorithm are performed on first original data
  • the output preprocessed data is used as input data for a second logic processing algorithm and a third logic processing algorithm
  • a third preprocessing algorithm is performed on second original data
  • the output preprocessed data is used as input data for a first logic processing algorithm and the third logic processing algorithm.
  • the first logic processing algorithm outputs first digitized data by using the preprocessed data output by the third preprocessing algorithm.
  • the third logic processing algorithm outputs third digitized data by using the preprocessed data for the first preprocessing algorithm, the second preprocessing algorithm, and the third preprocessing algorithm.
  • the second logic processing algorithm outputs second digitized data by using the preprocessed data for the first preprocessing algorithm and also using the third digitized data as intermediate data.
  • a mapping relationship is established between a production line of a factory and a production line model, and this technical solution can be applied to production lines of different factories, thereby saving the time for acquiring digitized data of a factory and reducing the cost for acquiring the digitized data.
  • Fig. 5 is a schematic diagram of a mapping model according to an exemplary embodiment of the present application.
  • the mapping model according to the exemplary embodiment of the present application includes a data collection layer 50, a production line layer 10, a production line model layer 30, an interface model layer 51, and a logic processing model layer 52.
  • the production line layer 10 and the production line model layer 30 show the mapping relationship between the production line model and the production line shown in Fig. 2, which will not be described again herein.
  • the data collection layer 50 includes field data collection means 501 and field data collection means 503 for respectively collecting field data of the workstation 101 and the workstation 109.
  • the production line further comprises operations performed at the workstations and buffers among the workstations
  • the production line model further comprises virtual buffers corresponding to the buffers
  • the field data comprises data acquired from the workstations in the production line and/or data acquired from the buffers.
  • the data collection layer 50 may further comprise means for collecting the field data from the buffers .
  • the means collects information of products produced by a workstation, and these products are stored in a buffer after being produced at the workstation, and have not yet been provided to the next workstation for further processing.
  • field data is acquired from the production line according to the interface model and the production line model
  • virtual workstations and/or virtual buffers corresponding to the field data are determined according to the interface model (interface model layer 51)
  • workstations and/or buffers in the production line (production line layer 10) corresponding to the virtual workstations and/or virtual buffers are determined according to the production line model (production line model layer 30)
  • the field data is acquired through the interface for the field data, for example, through the field data collection means, specific port of the field data collection means, etc .
  • the virtual workstation 301 in the production line model layer 30 corresponds to the workstation 101 and is used for material preparation, and the field data collection means 501 is, for example, a scanner for scanning a production order.
  • the virtual workstation 305 corresponds to the workstation 109 and is used for product testing, and the field data collection means 503 is an RFID reader for reading the IDs of final products.
  • the interface model layer 51 comprises a preprocessing algorithm 511, a preprocessing algorithm 513, and a preprocessing algorithm 515.
  • the input data used by the preprocessing algorithm 511, the preprocessing algorithm 513, and the preprocessing algorithm 515 is acquired through the IP addresses described in the data uploading part of the interface model, for example, acquired from the original data of the field data acquired by the field data collection means 501 and the field data collection means 503.
  • the preprocessing algorithm preprocesses the original data and provides the output data to the logic processing algorithm 521 in the logic processing model layer 52.
  • the preprocessing algorithm 511 obtains, based on the ID of a new production order, a start time and an end time of the production order; the preprocessing algorithm 513 obtains, based on the count of finally produced products, the number of produced products; these pieces of preprocessed data are used as the input data of the logic processing algorithm 521, and the logic processing algorithm 521 processes these pieces of preprocessed data to obtain a production speed of the products as the digitized data of the factory.
  • the mapping model is first established as above. Then, returning to Fig. 1, as shown in Fig. 1, when digitized data needs to be acquired, in step S106, a logic processing model is determined, and a logic processing algorithm corresponding to the digitized data to be calculated is determined according to the field data required by the logic processing model.
  • an interface model for acquiring the field data is determined according to the required one or more pieces of field data of the production line, so as to acquire the required field data through the corresponding interface; in step S110, the field data is acquired from the production line according to the interface model and the production line model for the calculation of a logic processing algorithm; and in step S112, digitized data is acquired based on the one or more pieces of field data according to the logic processing algorithm.
  • the method according to the exemplary embodiment of the present application further comprises transmitting, after acquiring the digitized data through calculation, the digitized data to a display device and displaying the digitized data.
  • the display of the required digitized data is provided to the users such as factory managers, product designers and engineers.
  • Fig. 6 is a block diagram of an apparatus for acquiring data of a factory according to an embodiment of the present application.
  • the apparatus 6 for acquiring data of a factory according to the embodiment of the present application comprises : a production line information acquisition module 602 configured to acquire information about a production line of the factory, the information at least representing one or more workstations comprised in the production line and relationships among the workstations, and the workstations being facilities or locations for producing products in the production line; a production line model determination module 604 configured to determine a production line model based on the information, the production line model comprising one or more virtual workstations corresponding to the one or more workstations and virtual relationships among the virtual workstations corresponding to the relationships among the workstations; a logic processing model determination module 606 configured to determine a logic processing model according to the digitized data to be acquired, the logic processing model defining one or more pieces of field data of the production
  • a mapping relationship is established between a production line of a factory and a production line model, corresponding field data is acquired from the production line according to the digitized data to be acquired and the mapping relationship, and then the digitized data to be acquired is calculated according to a logic processing algorithm.
  • This technical solution can be applied to production lines of different factories, thereby saving the time for acquiring digitized data of a factory and reducing the cost for acquiring the digitized data.
  • the apparatus 6 further comprises: a preprocessing module 614 configured to perform a preprocessing algorithm on the field data after acquiring the field data and before acquiring the digitized data, the preprocessing algorithm being used to convert the original data of the field data into one or more pieces of preprocessed data for calculating the digitized data. In this way, required information can be acquired from the field data according to different data requirements.
  • acquiring the digitized data based on the one or more pieces of field data according to the logic processing algorithm further comprises : processing, by the digitized data calculation module 612, the one or more pieces of preprocessed data according to a first algorithm to acquire intermediate data; and processing, by the digitized data calculation module 612, the intermediate data according to a second algorithm to acquire the digitized data.
  • processing, by the digitized data calculation module 612, the intermediate data according to a second algorithm to acquire the digitized data is acquired according to the field data obtained from the factory.
  • the apparatus according to the embodiment of the present application can implement the above-mentioned method for acquiring digitized data of a factory according to the embodiment of the present application, and the specific technical solutions thereof are the same, which will not be described again herein.
  • a system for acquiring data of a factory is further provided.
  • Fig. 7 is a block diagram of a system for acquiring data of a factory according to an embodiment of the present application.
  • the system 7 for acquiring data of a factory according to the embodiment of the present application comprises: one or more workstations 71, the workstations 71 being facilities or locations for producing products in a production line of the factory; and an apparatus 6 for acquiring data of the factory, which comprises: a production line information acquisition module 602 configured to acquire information about the production line of the factory, the information representing one or more workstations comprised in the production line, operations performed at the workstations, buffers among the workstations, and relationships among the workstations; a production line model determination module 604 configured to determine a production line model based on the information, the production line model comprising one or more virtual workstations corresponding to the one or more workstations and virtual relationships among the virtual workstations corresponding to the relationships among the workstations;
  • a mapping relationship is established between a production line of a factory and a production line model, corresponding field data is acquired from the production line according to the digitized data to be acquired and the mapping relationship, and then the digitized data to be acquired is calculated according to a logic processing algorithm.
  • This technical solution can be applied to production lines of different factories, thereby saving the time for acquiring digitized data of a factory and reducing the cost for acquiring the digitized data.
  • the apparatus 6 of the system 7 further comprises: a preprocessing module 614 configured to perform a preprocessing algorithm on the field data after acquiring the field data and before acquiring the digitized data, the preprocessing algorithm being used to convert the original data of the field data into one or more pieces of preprocessed data for calculating the digitized data. In this way, required information can be acquired from the field data according to different data requirements.
  • the apparatus for acquiring digitized data of a factory in the system according to the embodiment of the present application can implement the above-mentioned method for acquiring digitized data of a factory- according to the embodiment of the present application, and the specific technical solutions thereof are the same, which will not be described again herein.
  • the use of the technical solution of the present application can reduce the time for acquiring data from a factory, and can process a large amount of data, which reduces the requirements for worker abilities to realize factory digitalization, and reduces the cost for acquiring digitized data of the factory, and makes it easy to apply the solution of the factory digitalization to different factories .
  • the disclosed technical content may be implemented in other manners.
  • the device embodiments described above are merely schematic.
  • the division of the units or modules is only a logical function division, and in actual implementations, there may be other division methods.
  • a plurality of units or modules or components may be combined or integrated into another system, or some features may be omitted or not implemented.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interfaces, modules or units, and may be electrical or otherwise.
  • the units or modules described as separate components may or may not be physically separated, and the components displayed as units or modules may or may not be physical units or modules, that is, the components may be located in one place, or may be distributed on multiple network units or modules. Some or all of the units or modules may be selected according to actual needs to achieve the objective of the solution of the embodiment.
  • each functional unit or module in various embodiments of the present application may be integrated into one processing unit or module, or each unit or module may be physically present separately, or two or more units or modules may be integrated into one unit or module.
  • the above integrated unit or module can be implemented in the form of hardware or in the form of a software functional unit or module.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as an independent product, may be stored in a computer readable storage medium.
  • the computer software product is stored in a storage medium, and includes a plurality of instructions used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in various embodiments of the present application.
  • the aforementioned storage medium includes: a USB flash disk, a read-only memory (ROM) , a random access memory (RAM) , a mobile hard disk, a magnetic disk or optical disc or other various media capable of storing program codes.

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Abstract

The present application relates to a method, apparatus and system for acquiring digitized data of a factory.The method for acquiring digitized data of a factory comprises: acquiring information about a production line of the factory, and determining a production line model based on the information;determining a logic processing model according to the digitized data to be acquired,the logic processing model defining one or more pieces of field data of the production line required to calculate the digitized data and a corresponding logic processing algorithm; determining, according to the required one or more pieces of field data of the production line, an interface model for acquiring the field data, the interface model defining an interface for acquiring the field data from the production line according to the production line model; acquiring the field data from the production line according to the interface model and the production line model; and acquiring the digitized data based on the one or more pieces of field data according to the logic processing algorithm. The technical solution of the present application can reduce the time for acquiring digitized data of different factories and reduce the cost for acquiring the digitized data.

Description

Description
Method, apparatus and system for acquiring digitized data of factory
Technical Field
The present application relates to the field of industrial production control. Specifically, the present application relates to a method, apparatus and system for acquiring digitized data of a factory.
Background Art
Factory digitization is the trend of modern production. More and more data related to production will be collected in factories such that production management managers, product designers and engineers monitor the production status in real time, find out production abnormality events, improve product designs and optimize production processes, and can also provide end consumers with better added values. For the digitization of factories, how to collect the data in these factories simply and at low cost is an important issue.
Due to different factories and different products, and even if different factories produce the same products, their production processes and operations may also be different. Therefore, for each factory, the process and solution of acquiring its field data need to be designed differently, which requires high-cost investment in data collection.
Summary of the Invention
Embodiments of the present application provide a method, apparatus and system for acquiring digitized data of a factory, so as to solve at least the problems in the prior art that the period of acquiring digitized data of a factory is long and the cost for acquiring digitized data of different factories cannot be effectively reduced.
According to one aspect of the embodiments of the present application, a method for acquiring digitized data of a factory is provided, comprising: acquiring information about a production line of the factory, the information at least representing one or more workstations comprised in the production line and relationships among the workstations, and the workstations being facilities or locations for producing products in the production line; determining a production line model based on the information, the production line model comprising one or more virtual workstations corresponding to the one or more workstations and virtual relationships among the virtual workstations corresponding to the relationships among the workstations; determining a logic processing model according to the digitized data to be acquired, the logic processing model defining one or more pieces of field data of the production line required to calculate the digitized data and a corresponding logic processing algorithm; determining, according to the required one or more pieces of field data of the production line, an interface model for acquiring the field data, the interface model defining an interface for acquiring the field data from the production line according to the production line model; acquiring the field data from the production line according to the interface model and the production line model; and acquiring the digitized data based on the one or more pieces of field data according to the logic processing algorithm.
In this way, a mapping relationship is established between a production line of a factory and a production line model, corresponding field data is acquired from the production line according to the digitized data to be acquired and the mapping relationship, and then the digitized data to be acquired is calculated according to a logic processing algorithm. This technical solution can be applied to production lines of different factories, thereby saving the time for acquiring digitized data of a factory and reducing the cost for acquiring the digitized data.
The method according to the exemplary embodiment of the present application further comprises: performing a preprocessing algorithm on the field data after acquiring the field data and before acquiring the digitized data, the preprocessing algorithm being used to convert the original data of the field data into one or more pieces of preprocessed data for calculating the digitized data.
In this way, required information can be acquired from the field data according to different data requirements.
According to the method of the exemplary embodiment of the present application, acquiring the digitized data based on the one or more pieces of field data according to the logic processing algorithm further comprises : processing the one or more pieces of preprocessed data according to a first algorithm to acquire intermediate data; and processing the intermediate data according to a second algorithm to acquire the digitized data.
In this way, the digitized data that requires complex processing is acquired according to the field data obtained from the factory.
According to the method of the exemplary embodiment of the present application: the interface model defines the interface for acquiring the field data from the production line according to the production line model at least by defining the type or mode of acquisition of the required one or more pieces of field data of the production line.
In this way, the interface for acquiring the field data can be determined based on the digitized data to be acquired.
According to the method of the exemplary embodiment of the present application: the information further represents operations performed at the workstations and buffers among the workstations, and the production line model further comprises virtual buffers corresponding to the buffers; and the field data comprises data acquired from the workstations in the production line and/or data acquired from the buffers.
In this way, a data source for acquiring the field data to acquire the digitized data of the factory is determined.
According to the method of the exemplary embodiment of the present application, acquiring the field data from the production line according to the interface model and the production line model comprises: determining the virtual workstations and/or virtual buffers corresponding to the field data according to the interface model; determining the workstations and/or buffers in the production line corresponding to the virtual workstations and/or virtual buffers according to the production line model; and acquiring the field data from the workstations and/or buffers through the interface for the field data.
In this way, it can be determined, according to the mapping relationship between the production line and the production line model, from which part of the production line the required field data is acquired.
According to the method of the exemplary embodiment of the present application: one of the virtual workstations in the production line model corresponds to one or more workstations in the production line .
In this way, the production line model is simplified, and the amount of data processing during data acquisition is reduced.
The method according to the exemplary embodiment of the present application further comprises: transmitting, after acquiring the digitized data through calculation, the digitized data to a display device and displaying the digitized data.
In this way, the display of the required digitized data is provided to the users such as factory managers, product designers and engineers .
According to another aspect of the embodiments of the present application, an apparatus for acquiring data of a factory is further provided, comprising: a production line information acquisition module configured to acquire information about a production line of the factory, the information at least representing one or more workstations comprised in the production line and relationships among the workstations, and the workstations being facilities or locations for producing products in the production line; a production line model determination module configured to determine a production line model based on the information, the production line model comprising one or more virtual workstations corresponding to the one or more workstations and virtual relationships among the virtual workstations corresponding to the relationships among the workstations; a logic processing model determination module configured to determine a logic processing model according to the digitized data to be acquired, the logic processing model defining one or more pieces of field data of the production line required to calculate the digitized data, and a corresponding logic processing algorithm; an interface model determination module configured to determine, according to the required one or more pieces of field data of the production line, an interface model for acquiring the field data, the interface model defining an interface for acquiring the field data from the production line according to the production line model; a field data acquisition module configured to acquire the field data from the production line according to the interface model and the production line model; and a digitized data calculation module configured to acquire the digitized data based on the one or more pieces of field data according to the logic processing algorithm.
In this way, a mapping relationship is established between a production line of a factory and a production line model, corresponding field data is acquired from the production line according to the digitized data to be acquired and the mapping relationship, and then the digitized data to be acquired is calculated according to a logic processing algorithm. This technical solution can be applied to production lines of different factories, thereby saving the time for acquiring digitized data of a factory and reducing the cost for acquiring the digitized data. The apparatus according to the exemplary embodiment of the present application further comprises: a preprocessing module configured to perform a preprocessing algorithm on the field data after acquiring the field data and before acquiring the digitized data, the preprocessing algorithm being used to convert the original data of the field data into one or more pieces of preprocessed data for calculating the digitized data.
In this way, required information can be acquired from the field data according to different data requirements.
According to the exemplary embodiment of the present application, acquiring the digitized data based on the one or more pieces of field data according to the logic processing algorithm further comprises : processing, by the digitized data calculation module, the one or more pieces of preprocessed data according to a first algorithm to acquire intermediate data; and processing, by the digitized data calculation module, the intermediate data according to a second algorithm to acquire the digitized data.
In this way, the digitized data that requires complex processing is acquired according to the field data obtained from the factory.
According to another aspect of the embodiments of the present application, a system for acquiring data of a factory is further provided, comprising: one or more workstations, the workstations being facilities or locations for producing products in a production line of the factory; and an apparatus for acquiring data of the factory, which comprises : a production line information acquisition module configured to acquire information about the production line of the factory, the information representing one or more workstations comprised in the production line, operations performed at the workstations, buffers among the workstations, and relationships among the workstations; a production line model determination module configured to determine a production line model based on the information, the production line model comprising one or more virtual workstations corresponding to the one or more workstations and virtual relationships among the virtual workstations corresponding to the relationships among the workstations; a logic processing model determination module configured to determine a logic processing model according to the digitized data to be acquired, the logic processing model defining one or more pieces of field data of the production line required to calculate the digitized data and a corresponding logic processing algorithm, and the field data comprising data acquired from the workstations and/or buffers in the production line; an interface model determination module configured to determine, according to the required one or more pieces of field data of the production line, an interface model for acquiring the field data, the interface model defining an interface for acquiring the field data from the production line according to the production line model; a field data acquisition module configured to acquire the field data from the production line according to the interface model and the production line model; and a digitized data calculation module configured to acquire the digitized data based on the one or more pieces of field data according to the logic processing algorithm.
In this way, a mapping relationship is established between a production line of a factory and a production line model, corresponding field data is acquired from the production line according to the digitized data to be acquired and the mapping relationship, and then the digitized data to be acquired is calculated according to a logic processing algorithm. This technical solution can be applied to production lines of different factories, thereby saving the time for acquiring digitized data of a factory and reducing the cost for acquiring the digitized data.
According to the system of the exemplary embodiment of the present application, the apparatus further comprises: a preprocessing module configured to perform a preprocessing algorithm on the field data after acquiring the field data and before acquiring the digitized data, the preprocessing algorithm being used to convert the original data of the field data into one or more pieces of preprocessed data for calculating the digitized data.
In this way, required information can be acquired from the field data according to different data requirements.
In the embodiments of the present application, a technical solution is provided, which involves determining a mapping relationship between the production line and the production line model, determining an interface for acquiring field data according to digitized data of the factory to be acquired, acquiring the field data from the corresponding data source of the production line where the field data needs to be acquired, and calculating the field data according to a logic processing algorithm corresponding to the digitized data to be acquired, so as to solve at least the technical problems of difficulty in acquiring digitized data of different factories and high cost for acquiring the digitized data, thereby achieving the technical effects of saving the time for acquiring the digitized data of the factory, acquiring a large amount of different pieces of digitized data, reducing the requirements for worker abilities to acquire the digitized data, and saving the cost for acquiring the digitized data.
Brief Description of the Drawings
The accompanying drawings described herein are intended to provide a further understanding of the present application, which constitute a part of the present application. The exemplary embodiments of the present application and the descriptions thereof are intended to explain the present application and do not constitute undue limitations of the present application. In the drawings :
Fig. 1 is a flowchart of a method for acquiring digitized data of a factory according to an embodiment of the present application;
Fig. 2 is a schematic diagram of a production line model of a factory according to an exemplary embodiment of the present application; Fig. 3 is a schematic diagram of preprocessing original data according to an exemplary embodiment of the present application;
Fig. 4 is a schematic diagram of an interaction relationship between an interface model and a logic processing model according to an exemplary embodiment of the present application;
Fig. 5 is a schematic diagram of a mapping model according to an exemplary embodiment of the present application;
Fig. 6 is a block diagram of an apparatus for acquiring data of a factory according to an embodiment of the present application; and
Fig. 7 is a block diagram of a system for acquiring data of a factory according to an embodiment of the present application.
Descriptions of text in the drawings:
S102: Acquiring information about a production line of a factory; S104 : Determining a production line model based on the information; S106: Determining a logic processing model according to digitized data to be acquired;
S108 : Determining, according to required one or more pieces of field data of the production line, an interface model for acquiring the field data;
S110: Acquiring the field data from the production line according to the interface model and the production line model;
S112: Acquiring the digitized data based on the one or more pieces of field data according to a logic processing algorithm;
101, 103, 105, 107, 109: Workstation;
301, 303, 305: Virtual workstation;
10: Production line layer;
30: Production line model layer;
50: Data collection layer;
501, 503: Field data collection means;
51: Interface model layer;
511, 513, 515: Preprocessing algorithm
52: Logic processing model layer; 521: Logic processing algorithm;
6: Apparatus;
602: Production line information acquisition module;
604: Production line model determination module;
606: Logic processing model determination module;
608: Interface model determination module;
610: Field data acquisition module;
612: digitized data calculation module;
614: Preprocessing module;
7 : System;
71: Workstation.
Detailed Description of Embodiments
In order to enable a person skilled in the art to better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are merely some of, rather than all of, the embodiments of the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present application without creative efforts should be within the protective scope of the present application .
It needs to be noted that the terms such as "first" and "second" in the description and claims of the present application as well as the aforementioned accompanying drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order of precedence. It is to be understood that the data so used may be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in a sequence other than those illustrated or described herein. Moreover, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or modules or units is not necessarily limited to those steps or modules or units that are explicitly listed, but may include other steps or modules or units not explicitly listed or inherent to such processes, methods, systems, products or devices.
According to an embodiment of the present application, a method for acquiring digitized data of a factory is provided. Fig. 1 is a flowchart of a method for acquiring digitized data of a factory according to an embodiment of the present application. As shown in Fig. 1, the method for acquiring digitized data of a factory according to an embodiment of the present application comprises: step S102 of acquiring information about a production line of the factory, the information at least representing one or more workstations comprised in the production line and relationships among the workstations, and the workstations being facilities or locations for producing products in the production line; step S104 of determining a production line model based on the information, the production line model comprising one or more virtual workstations corresponding to the one or more workstations and virtual relationships among the virtual workstations corresponding to the relationships among the workstations; step S106 of determining a logic processing model according to the digitized data to be acquired, the logic processing model defining one or more pieces of field data of the production line required to calculate the digitized data and a corresponding logic processing algorithm; step S108 of determining, according to the required one or more pieces of field data of the production line, an interface model for acquiring the field data, the interface model defining an interface for acquiring the field data from the production line according to the production line model; step S110 of acquiring the field data from the production line according to the interface model and the production line model; and step S112 of acquiring the digitized data based on the one or more pieces of field data according to the logic processing algorithm.
According to an embodiment of the present application, a flexible mapping model for acquiring digitized data of a factory is provided. The mapping model includes a production line model, an interface device model, and a logic processing model.
Fig. 2 is a schematic diagram of a production line model of a factory- according to an exemplary embodiment of the present application. As shown in Fig . 2, 101, 103, 105, 107, and 109 represent workstations in the production line. In the production process, the workstation 101 first performs production work, and the workstations 103, 105, 107, and 109 sequentially perform the production work after the workstation 101. The information is acquired from the production line of the factory in step S102 to establish a production line model in step S104. The production line model represents a mapping relationship between the production line of the factory and the virtual production line. Specifically, the production line model includes virtual workstations, virtual operations, and virtual workflows, which correspond to the workstations, operations, and workflows in the production line, respectively, such that users using the production line model learn about the production line of the factory without arriving at the factory site, and know about the source of the field data from the production line. The virtual workstations may represent physical workstations on the factory site, such as production facilities or locations for production tasks. Each virtual workstation may also represent a group of physical workstations on the factory site to simplify the production line model.
As shown in Fig. 2, 301, 303, and 305 represent virtual workstations in the production line model. As shown in Fig. 2, the virtual workstation 301 corresponds to the workstation 101, and the virtual workstation 305 corresponds to the workstation 109, indicating from which workstation the corresponding field data should be acquired according to the production line model when the field data is acquired. The virtual workstations in the production line model may correspond to the workstations in the production line on a one-to-one basis. According to the method of the exemplary embodiment of the present application, one virtual workstation in the production line model may correspond to one or more workstations in the production line. As shown in Fig. 2, the virtual workstation 303 corresponds to the workstations 103, 105, and 107; under such a mapping relationship, the workstations 103, 105, and 107 provide the same type of field data, that is, field data corresponding to the virtual workstation 303; and corresponding to the relationships among the workstations in the production line, the virtual workstations 301, 303, and 305 have a virtual relationship (virtual workflow) , which represents the workflow in the production process, and may also represent a connection relationship. In this way, the production line model is simplified, and the amount of data processing during data acquisition is reduced.
In the production line model, the description of a virtual workstation includes the ID, name, location, type (for example, facility, whether it is manual) , production capacity (for example, products that can be produced, the number of products that can be produced), etc. of the corresponding workstation. The virtual operations can describe the steps of producing products, and the products may be products to be finally delivered to end customers or part of final products. Just as the steps for producing products in a production line can be performed by one or more workstations or one workstation can perform one or more steps of producing products, the virtual operations can be performed by one or more virtual workstations, and one virtual workstation can also perform one or more virtual operations. The descriptions of the virtual operations include the ID, name, required materials, tasks, cycle time, work instructions, required facilities, required worker capabilities, previous operations, next operation, etc. of the corresponding steps of producing products. The workflow describes the relationships among the workstations, and the virtual workflow correspondingly describes the virtual relationships among the virtual workstations. The virtual workflow may be extracted from the data related to the virtual operations, or defined separately to reflect the order of production of the virtual workstations. The description of the virtual workflow includes previous workstations, next workstation, the size of a buffer, etc. The virtual workflow may have a sequential relationship, a parallel relationship, a cyclic relationship, etc. according to the production process. According to the embodiment of the present application, an interface model is provided in the mapping model. The interface model describes how the data is acquired from the production line and how the original data is preprocessed before being processed by logic. The interface model includes two parts: data uploading and data preprocessing .
The data uploading part describes how and where the data should be collected. The description of the data uploading part includes the name of data, the type of data, the mode of collection of data (pushing or polling) , the frequency of collection of data, the mode of communication, related parameters, etc. For example, if data of a production line needs to be collected from a programmable logic controller (PLC) , the description of the data uploading part may include [PLC type, IP address, and data block] , thereby defining a specific type of PLC data to be collected, an IP address used by the PLC to be collected, and a data block of the data to be collected. For example, if data needs to be collected from a production line through a digital or analog port, the description of the data uploading part includes [IP address, and port ID], so as to represent an IP address and a specific port for collecting the data. In this way, the required data can be collected from the production line in a suitable way at a required location. According to the method of the exemplary embodiment of the present application, the interface model defines the interface for acquiring the field data from the production line according to the production line model at least by defining the type or mode of acquisition of the required one or more pieces of field data of the production line. In this way, the interface for acquiring the field data can be determined based on the digitized data to be acquired.
The data preprocessing part describes how the collected original data is preprocessed and formatted before same is sent to a processing module. The description of the data preprocessing part mainly includes processing modes (processing algorithms ) , input and input data types, output and output data types, simple functional descriptions, etc. Generally, one preprocessing algorithm in the data preprocessing part has one input, for example, original data collected from the PLC, a sensor, etc. The original data is preprocessed to obtain one or more outputs, which can be used for different processing purposes, so as to obtain different pieces of required digitized data of the factory. In addition, one copy of original data can be processed by multiple preprocessing algorithms, and converted into one or more pieces of preprocessed data used to calculate digitized data. Fig. 3 is a schematic diagram of preprocessing original data according to an exemplary embodiment of the present application. As shown in Fig. 3, a first preprocessing algorithm, a second preprocessing algorithm, and a third preprocessing algorithm are respectively performed on the original data. First preprocessed data can be obtained through the first preprocessing algorithm, second preprocessed data can be obtained through the second preprocessing algorithm, third preprocessed data can be obtained through the third preprocessing algorithm, and three copies of third preprocessed data are output according to actual needs for the purpose of obtaining different digitized data. According to the exemplary embodiment of the present application, a preprocessing algorithm is performed on the field data after the field data is acquired and before the digitized data is acquired, the preprocessing algorithm being used to convert the original data of the field data into one or more pieces of preprocessed data for calculating the digitized data. In this way, required original data can be acquired from the field data according to different data requirements, and different required digitized data can be obtained from the original data.
Some examples of the preprocessing algorithms involved in the data preprocessing part are as follows (not limited thereto) :
- Min() : Input the minimum value of a data sequence;
- Max() : Input the maximum value of the data sequence;
- Avg() : Input the average value of the data sequence;
- Counter () : Input the count value of the data sequence;
- Counter_unique ( ) : Input the count value of special data in the data sequence;
- Value () : Output the value of the collected data;
- Value_unique ( ) : Output the value of special data that appears for the first time.
For example, products are conveyed from a conveyor belt of a production line, and each of the products is attached with an RFID tag or a two-dimensional code, which represents the ID of the product. The acquired original data is regarding the product IDs obtained by reading the RFID tags or scanning the two-dimensional codes. The preprocessing algorithm Value () is performed on the product IDs as the original data to obtain detected product IDs. The preprocessing algorithm Value_unique ( ) is performed on the product IDs as the original data to obtain product IDs, but not repeated IDs. The preprocessing algorithm Counter_unique ( ) is performed on the product IDs as the original data to obtain the actual number of products. These pieces of data will be used to obtain the digitized data of the factory.
According to the embodiment of the present application, a logic processing model is provided in the mapping model. The logic processing model describes the logic processing of the input data, and is used to obtain the digitized data of the factory concerned by users such as production management managers, product designers, and engineers. The input data in the logic processing model is the output data of the data preprocessing part in the interface model. The logic processing model usually requires multiple pieces of input data, that is, acquiring multiple pieces of preprocessed data from the interface model. The logic processing model includes/defines a logic processing algorithm, the logic processing algorithm is related to the digitized data, and the output data is regarding, for example, the total efficiency of facilities, the yield of products, a high temperature alarm, or other key performance indicators (KPIs) concerned during the production process. For different factories (end users) , the logic processing algorithm can be adjusted and changed as needed. The description of the logic processing model includes logic processing algorithms, input data and input data types, output data and output data types, output interfaces, simple functional descriptions, etc. The output of one logic processing model can be used as the input of another logic processing model. According to the method of the exemplary embodiment of the present application, acquiring the digitized data based on the one or more pieces of field data according to the logic processing algorithm further comprises: processing the one or more pieces of preprocessed data according to a first algorithm to acquire intermediate data; and processing the intermediate data according to a second algorithm to acquire the digitized data. In this way, the digitized data that requires complex processing is acquired according to the field data obtained from the factory. The output interface defines how the output of digitized data is acquired from the logic processing model, for example, through an API, an OPC, an OPC UA, a web server, etc.
Fig. 4 is a schematic diagram of an interaction relationship between an interface model and a logic processing model according to an exemplary embodiment of the present application. As shown in Fig. 4, a first preprocessing algorithm and a second preprocessing algorithm are performed on first original data, the output preprocessed data is used as input data for a second logic processing algorithm and a third logic processing algorithm, a third preprocessing algorithm is performed on second original data, and the output preprocessed data is used as input data for a first logic processing algorithm and the third logic processing algorithm. The first logic processing algorithm outputs first digitized data by using the preprocessed data output by the third preprocessing algorithm. The third logic processing algorithm outputs third digitized data by using the preprocessed data for the first preprocessing algorithm, the second preprocessing algorithm, and the third preprocessing algorithm. The second logic processing algorithm outputs second digitized data by using the preprocessed data for the first preprocessing algorithm and also using the third digitized data as intermediate data.
According to the embodiment of the present application, a mapping relationship is established between a production line of a factory and a production line model, and this technical solution can be applied to production lines of different factories, thereby saving the time for acquiring digitized data of a factory and reducing the cost for acquiring the digitized data.
Fig. 5 is a schematic diagram of a mapping model according to an exemplary embodiment of the present application. As shown in Fig. 5, the mapping model according to the exemplary embodiment of the present application includes a data collection layer 50, a production line layer 10, a production line model layer 30, an interface model layer 51, and a logic processing model layer 52. The production line layer 10 and the production line model layer 30 show the mapping relationship between the production line model and the production line shown in Fig. 2, which will not be described again herein. The data collection layer 50 includes field data collection means 501 and field data collection means 503 for respectively collecting field data of the workstation 101 and the workstation 109.
According to the method of the exemplary embodiment of the present application, the production line further comprises operations performed at the workstations and buffers among the workstations, and the production line model further comprises virtual buffers corresponding to the buffers; and the field data comprises data acquired from the workstations in the production line and/or data acquired from the buffers. Accordingly, the data collection layer 50 may further comprise means for collecting the field data from the buffers . For example, the means collects information of products produced by a workstation, and these products are stored in a buffer after being produced at the workstation, and have not yet been provided to the next workstation for further processing.
According to the method of the exemplary embodiment of the present application, as shown in Fig. 5, field data is acquired from the production line according to the interface model and the production line model, virtual workstations and/or virtual buffers corresponding to the field data are determined according to the interface model (interface model layer 51) , workstations and/or buffers in the production line (production line layer 10) corresponding to the virtual workstations and/or virtual buffers are determined according to the production line model (production line model layer 30) , and the field data is acquired through the interface for the field data, for example, through the field data collection means, specific port of the field data collection means, etc .
As shown in Fig. 5, for example, the virtual workstation 301 in the production line model layer 30 corresponds to the workstation 101 and is used for material preparation, and the field data collection means 501 is, for example, a scanner for scanning a production order. The virtual workstation 305 corresponds to the workstation 109 and is used for product testing, and the field data collection means 503 is an RFID reader for reading the IDs of final products. The interface model layer 51 comprises a preprocessing algorithm 511, a preprocessing algorithm 513, and a preprocessing algorithm 515. The input data used by the preprocessing algorithm 511, the preprocessing algorithm 513, and the preprocessing algorithm 515 is acquired through the IP addresses described in the data uploading part of the interface model, for example, acquired from the original data of the field data acquired by the field data collection means 501 and the field data collection means 503. The preprocessing algorithm preprocesses the original data and provides the output data to the logic processing algorithm 521 in the logic processing model layer 52. For example, the preprocessing algorithm 511 obtains, based on the ID of a new production order, a start time and an end time of the production order; the preprocessing algorithm 513 obtains, based on the count of finally produced products, the number of produced products; these pieces of preprocessed data are used as the input data of the logic processing algorithm 521, and the logic processing algorithm 521 processes these pieces of preprocessed data to obtain a production speed of the products as the digitized data of the factory.
In the technical solution using the mapping model of the embodiment of the present application, the mapping model is first established as above. Then, returning to Fig. 1, as shown in Fig. 1, when digitized data needs to be acquired, in step S106, a logic processing model is determined, and a logic processing algorithm corresponding to the digitized data to be calculated is determined according to the field data required by the logic processing model. In step S108, an interface model for acquiring the field data is determined according to the required one or more pieces of field data of the production line, so as to acquire the required field data through the corresponding interface; in step S110, the field data is acquired from the production line according to the interface model and the production line model for the calculation of a logic processing algorithm; and in step S112, digitized data is acquired based on the one or more pieces of field data according to the logic processing algorithm.
The method according to the exemplary embodiment of the present application further comprises transmitting, after acquiring the digitized data through calculation, the digitized data to a display device and displaying the digitized data. In this way, the display of the required digitized data is provided to the users such as factory managers, product designers and engineers.
According to an embodiment of the present application, an apparatus for acquiring data of a factory is further provided. Fig. 6 is a block diagram of an apparatus for acquiring data of a factory according to an embodiment of the present application. As shown in Fig. 6, the apparatus 6 for acquiring data of a factory according to the embodiment of the present application comprises : a production line information acquisition module 602 configured to acquire information about a production line of the factory, the information at least representing one or more workstations comprised in the production line and relationships among the workstations, and the workstations being facilities or locations for producing products in the production line; a production line model determination module 604 configured to determine a production line model based on the information, the production line model comprising one or more virtual workstations corresponding to the one or more workstations and virtual relationships among the virtual workstations corresponding to the relationships among the workstations; a logic processing model determination module 606 configured to determine a logic processing model according to the digitized data to be acquired, the logic processing model defining one or more pieces of field data of the production line required to calculate the digitized data, and a corresponding logic processing algorithm; an interface model determination module 608 configured to determine, according to the required one or more pieces of field data of the production line, an interface model for acquiring the field data, the interface model defining an interface for acquiring the field data from the production line according to the production line model; a field data acquisition module 610 configured to acquire the field data from the production line according to the interface model and the production line model; and a digitized data calculation module 612 configured to acquire the digitized data based on the one or more pieces of field data according to the logic processing algorithm. In this way, a mapping relationship is established between a production line of a factory and a production line model, corresponding field data is acquired from the production line according to the digitized data to be acquired and the mapping relationship, and then the digitized data to be acquired is calculated according to a logic processing algorithm. This technical solution can be applied to production lines of different factories, thereby saving the time for acquiring digitized data of a factory and reducing the cost for acquiring the digitized data.
As shown in Fig. 6, the apparatus 6 according to the exemplary embodiment of the present application further comprises: a preprocessing module 614 configured to perform a preprocessing algorithm on the field data after acquiring the field data and before acquiring the digitized data, the preprocessing algorithm being used to convert the original data of the field data into one or more pieces of preprocessed data for calculating the digitized data. In this way, required information can be acquired from the field data according to different data requirements.
According to the exemplary embodiment of the present application, acquiring the digitized data based on the one or more pieces of field data according to the logic processing algorithm further comprises : processing, by the digitized data calculation module 612, the one or more pieces of preprocessed data according to a first algorithm to acquire intermediate data; and processing, by the digitized data calculation module 612, the intermediate data according to a second algorithm to acquire the digitized data. In this way, the digitized data that requires complex processing is acquired according to the field data obtained from the factory.
The apparatus according to the embodiment of the present application can implement the above-mentioned method for acquiring digitized data of a factory according to the embodiment of the present application, and the specific technical solutions thereof are the same, which will not be described again herein.
According to an embodiment of the present application, a system for acquiring data of a factory is further provided. Fig. 7 is a block diagram of a system for acquiring data of a factory according to an embodiment of the present application. As shown in Fig. 7, the system 7 for acquiring data of a factory according to the embodiment of the present application comprises: one or more workstations 71, the workstations 71 being facilities or locations for producing products in a production line of the factory; and an apparatus 6 for acquiring data of the factory, which comprises: a production line information acquisition module 602 configured to acquire information about the production line of the factory, the information representing one or more workstations comprised in the production line, operations performed at the workstations, buffers among the workstations, and relationships among the workstations; a production line model determination module 604 configured to determine a production line model based on the information, the production line model comprising one or more virtual workstations corresponding to the one or more workstations and virtual relationships among the virtual workstations corresponding to the relationships among the workstations; a logic processing model determination module 606 configured to determine a logic processing model according to the digitized data to be acquired, the logic processing model defining one or more pieces of field data of the production line required to calculate the digitized data and a corresponding logic processing algorithm, and the field data comprising data acquired from the workstations and/or buffers in the production line; an interface model determination module 608 configured to determine, according to the required one or more pieces of field data of the production line, an interface model for acquiring the field data, the interface model defining an interface for acquiring the field data from the production line according to the production line model; a field data acquisition module 610 configured to acquire the field data from the production line according to the interface model and the production line model; and a digitized data calculation module 612 configured to acquire the digitized data based on the one or more pieces of field data according to the logic processing algorithm. In this way, a mapping relationship is established between a production line of a factory and a production line model, corresponding field data is acquired from the production line according to the digitized data to be acquired and the mapping relationship, and then the digitized data to be acquired is calculated according to a logic processing algorithm. This technical solution can be applied to production lines of different factories, thereby saving the time for acquiring digitized data of a factory and reducing the cost for acquiring the digitized data.
As shown in Fig. 7, the apparatus 6 of the system 7 according to the exemplary embodiment of the present application further comprises: a preprocessing module 614 configured to perform a preprocessing algorithm on the field data after acquiring the field data and before acquiring the digitized data, the preprocessing algorithm being used to convert the original data of the field data into one or more pieces of preprocessed data for calculating the digitized data. In this way, required information can be acquired from the field data according to different data requirements.
The apparatus for acquiring digitized data of a factory in the system according to the embodiment of the present application can implement the above-mentioned method for acquiring digitized data of a factory- according to the embodiment of the present application, and the specific technical solutions thereof are the same, which will not be described again herein.
The use of the technical solution of the present application can reduce the time for acquiring data from a factory, and can process a large amount of data, which reduces the requirements for worker abilities to realize factory digitalization, and reduces the cost for acquiring digitized data of the factory, and makes it easy to apply the solution of the factory digitalization to different factories .
In the above embodiments of the present application, the various embodiments have described in different emphases, and the portions that are not detailed in a certain embodiment may be considered with respect to the related descriptions of other embodiments.
In several embodiments provided by the present application, it should be understood that the disclosed technical content may be implemented in other manners. The device embodiments described above are merely schematic. For example, the division of the units or modules is only a logical function division, and in actual implementations, there may be other division methods. For example, a plurality of units or modules or components may be combined or integrated into another system, or some features may be omitted or not implemented. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interfaces, modules or units, and may be electrical or otherwise.
The units or modules described as separate components may or may not be physically separated, and the components displayed as units or modules may or may not be physical units or modules, that is, the components may be located in one place, or may be distributed on multiple network units or modules. Some or all of the units or modules may be selected according to actual needs to achieve the objective of the solution of the embodiment.
In addition, each functional unit or module in various embodiments of the present application may be integrated into one processing unit or module, or each unit or module may be physically present separately, or two or more units or modules may be integrated into one unit or module. The above integrated unit or module can be implemented in the form of hardware or in the form of a software functional unit or module.
The integrated unit, if implemented in the form of a software functional unit and sold or used as an independent product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application, in essence or the contribution to the prior art, or all or part of the technical solution may be embodied in the form of a software product. The computer software product is stored in a storage medium, and includes a plurality of instructions used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in various embodiments of the present application. Moreover, the aforementioned storage medium includes: a USB flash disk, a read-only memory (ROM) , a random access memory (RAM) , a mobile hard disk, a magnetic disk or optical disc or other various media capable of storing program codes.
The above descriptions are only preferred embodiments of the present application, and it should be noted that a person of ordinary skill in the art can also make several improvements and modifications without departing from the principle of the present application, and these improvements and modifications should also be considered to be within the protection scope of the present application.

Claims

Claims
1. A method for acquiring digitized data of a factory, comprising :
acquiring information about a production line of the factory (S102) , the information at least representing one or more workstations comprised in the production line and relationships among the workstations, and the workstations being facilities or locations for producing products in the production line;
determining a production line model based on the information (S104) , the production line model comprising one or more virtual workstations corresponding to the one or more workstations and virtual relationships among the virtual workstations corresponding to the relationships among the workstations;
determining a logic processing model according to the digitized data to be acquired (S106) , the logic processing model defining one or more pieces of field data of the production line required to calculate the digitized data and a corresponding logic processing algorithm;
determining, according to the required one or more pieces of field data of the production line, an interface model for acquiring the field data (S108) , the interface model defining an interface for acquiring the field data from the production line according to the production line model;
acquiring the field data from the production line according to the interface model and the production line model (S110) ; and acquiring the digitized data based on the one or more pieces of field data according to the logic processing algorithm (S112) .
2. The method according to claim 1, further comprising:
performing a preprocessing algorithm on the field data after acquiring the field data and before acquiring the digitized data, the preprocessing algorithm being used to convert the original data of the field data into one or more pieces of preprocessed data for calculating the digitized data.
3. The method according to claim 2, wherein acquiring the digitized data based on the one or more pieces of field data according to the logic processing algorithm further comprises:
processing the one or more pieces of preprocessed data according to a first algorithm to acquire intermediate data; and
processing the intermediate data according to a second algorithm to acquire the digitized data.
4. The method according to any one of claims 1 to 3, wherein the interface model defines the interface for acquiring the field data from the production line according to the production line model at least by defining the type or mode of acquisition of the required one or more pieces of field data of the production line.
5. The method according to any one of claims 1 to 3, wherein the information further represents operations performed at the workstations and buffers among the workstations, and the production line model further comprises virtual buffers corresponding to the buffers; and
the field data comprises data acquired from the workstations in the production line and/or data acquired from the buffers.
6. The method according to claim 5, wherein acquiring the field data from the production line according to the interface model and the production line model comprises:
determining the virtual workstations and/or virtual buffers corresponding to the field data according to the interface model; determining the workstations and/or buffers in the production line corresponding to the virtual workstations and/or virtual buffers according to the production line model; and
acquiring the field data from the workstations and/or buffers through the interface for the field data.
7. The method according to any one of claims 1 to 3, wherein one of the virtual workstations in the production line model corresponds to one or more workstations in the production line.
8. The method according to any one of claims 1 to 3, further comprising :
transmitting, after acquiring the digitized data through calculation, the digitized data to a display device and displaying the digitized data.
9. An apparatus for acquiring data of a factory, comprising: a production line information acquisition module (602) configured to acquire information about a production line of the factory, the information at least representing one or more workstations comprised in the production line and relationships among the workstations, and the workstations being facilities or locations for producing products in the production line;
a production line model determination module (604) configured to determine a production line model based on the information, the production line model comprising one or more virtual workstations corresponding to the one or more workstations and virtual relationships among the virtual workstations corresponding to the relationships among the workstations;
a logic processing model determination module (606) configured to determine a logic processing model according to the digitized data to be acquired, the logic processing model defining one or more pieces of field data of the production line required to calculate the digitized data, and a corresponding logic processing algorithm; an interface model determination module (608) configured to determine, according to the required one or more pieces of field data of the production line, an interface model for acquiring the field data, the interface model defining an interface for acquiring the field data from the production line according to the production line model;
a field data acquisition module (610) configured to acquire the field data from the production line according to the interface model and the production line model; and
a digitized data calculation module (612) configured to acquire the digitized data based on the one or more pieces of field data according to the logic processing algorithm.
10. The apparatus according to claim 9, further comprising: a preprocessing module (614) configured to perform a preprocessing algorithm on the field data after acquiring the field data and before acquiring the digitized data, the preprocessing algorithm being used to convert the original data of the field data into one or more pieces of preprocessed data for calculating the digitized data.
11. The apparatus according to claim 9 or 10, wherein acquiring the digitized data based on the one or more pieces of field data according to the logic processing algorithm further comprises: processing, by the digitized data calculation module, the one or more pieces of preprocessed data according to a first algorithm to acquire intermediate data; and
processing, by the digitized data calculation module, the intermediate data according to a second algorithm to acquire the digitized data.
12. A system for acquiring data of a factory, comprising:
one or more workstations 71, the workstations being facilities or locations for producing products in a production line of the factory; and
an apparatus 6 for acquiring data of the factory, which comprises: a production line information acquisition module 602 configured to acquire information about the production line of the factory, the information representing one or more workstations comprised in the production line, operations performed at the workstations, buffers among the workstations, and relationships among the workstations; a production line model determination module 604 configured to determine a production line model based on the information, the production line model comprising one or more virtual workstations corresponding to the one or more workstations and virtual relationships among the virtual workstations corresponding to the relationships among the workstations;
a logic processing model determination module 606 configured to determine a logic processing model according to the digitized data to be acquired, the logic processing model defining one or more pieces of field data of the production line required to calculate the digitized data and a corresponding logic processing algorithm, and the field data comprising data acquired from the workstations and/or buffers in the production line;
an interface model determination module 608 configured to determine, according to the required one or more pieces of field data of the production line, an interface model for acquiring the field data, the interface model defining an interface for acquiring the field data from the production line according to the production line model;
a field data acquisition module 610 configured to acquire the field data from the production line according to the interface model and the production line model; and
a digitized data calculation module 612 configured to acquire the digitized data based on the one or more pieces of field data according to the logic processing algorithm.
13. The system according to claim 12, wherein the apparatus further comprises:
a preprocessing module 614 configured to configured to perform a preprocessing algorithm on the field data after acquiring the field data and before acquiring the digitized data, the preprocessing algorithm being used to convert the original data of the field data into one or more pieces of preprocessed data for calculating the digitized data.
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