KR20220142176A - Smart factory managing system and operating method thereof - Google Patents

Abstract

The present technology relates to an electronic device. According to the present technology, a system for managing a smart factory that performs at least one or more processes for processing a material moved through a plurality of moving units may comprise: a standard management unit that manages control standards for the at least one or more processes performed while the material moves through the plurality of moving units; an information collection unit that obtains a plurality of sensing values that are information about the material corresponding to a plurality of sensing timings while the at least one process is performed, generates material information by adding tags indicating a process in which the plurality of sensing values were obtained among the at least one or more processes to the plurality of sensing values, and stores the material information in the standard management unit; an information pre-processing unit that converts the plurality of sensing values into a plurality of correction values corresponding to a plurality of predetermined standard timings based on a rate of change of the plurality of sensing values; a monitoring unit that generates management information obtained by adding moving unit tags indicating moving units corresponding to the plurality of standard timings among the plurality of moving units to the plurality of correction values; an event detection unit that detects an event occurrence location of a moving unit corresponding to a correction value satisfying the control standard among the plurality of correction values based on the management information; and a control unit that executes a command corresponding to the control standard for the moving unit corresponding to the event occurrence location. Accordingly, operational homogeneity can be ensured.

Description

Smart factory management system and its operation method {SMART FACTORY MANAGING SYSTEM AND OPERATING METHOD THEREOF}

The present invention relates to an electronic device, and more particularly, to a smart factory management system and an operating method thereof.

A smart factory is not a simple automated factory, but an intelligent factory designed to collect data and issue work orders by integrating the entire process of product planning, design, production, distribution, and sales with information and communication technology. Internally, the need for innovation and change through the introduction of smart factories in terms of internal production, products, facilities, and manpower operation is increasing. As the manufacturing ecosystem is rapidly changing from supply-oriented manufacturing to consumption-oriented manufacturing in the past, it is necessary to secure a rapid survival strategy. The rapid development of IT technology over the past decade is leading the digital transformation of corporate “management and factory operation systems”.

In the manufacturing area, it is necessary to maximize profits through optimization rather than cost reduction, productivity improvement, process control, delivery stability and production maximization. In terms of products, there is a need for a process to advance defect control, improve the ability to prevent defects in advance, improve quality, and develop new products that meet consumer needs. In terms of facilities, there is an increasing need to use them as basic data for predictive maintenance through data on facility aging, facility operation rate improvement, facility maintenance capacity expansion, and facility management and maintenance history. In terms of manpower, it is necessary to prevent a decrease in productivity by securing labor productivity, internalizing know-how and reducing operation deviation, overcoming human limitations and securing ease of communication.

In the communication field, the implementation of IoT and M2M may be easy through the development of wireless communication technology, processing of large-capacity traffic, and standardization of communication protocols. In the software area, costs can be reduced through large-capacity data processing, data processing technology development, and expansion of know-how to open sources. In terms of the technological environment, it can be developed into a structure that can support stable support through the trend of Industry 4.0, the convergence of IT and OT, and the development of open source and platform technologies. In the hardware area, a flexible cost plan can be established with a decrease in storage cost, an increase in hardware cost-effectiveness, and the generalization of a clouding environment.

The smart factory can actively respond to changes in the external environment, which are rapidly changing and infinitely competitive. The will to innovate within a company combined with technological development that leads to increase in work efficiency and cost-effectiveness is establishing itself as an essential factor in securing corporate competitiveness.

A smart factory can increase production per capita, increase production capacity, increase delivery time compliance, increase production facility operation efficiency, increase facility utilization rate improvement capability, and increase customer satisfaction. In addition, the smart factory can reduce the production defect rate, reduce manufacturing costs, reduce unused inventory, reduce production-related decision-making time, reduce the number of occurrences of production equipment failures, and reduce abnormal response time.

In relation to the smart factory, large enterprises have already built a high-level manufacturing system, but they are facing structural problems such as continuous decline in demand, deterioration of facilities, and deterioration of the working environment. Instead of the past era of quantitative growth that sells simply by making, attention is focused on a new factory operation system that can maximize profitability. Since SMEs are highly dependent on operating operators, it is necessary to secure a homogeneous production system that suppresses individual deviations through continuous standard advancement. Small and medium-sized enterprises (SMEs) need alternatives because they lack experts in diagnosis, design, and operation and have financial difficulties.

An embodiment of the present invention provides a system for managing a smart factory according to a user's intention and an operating method thereof. An embodiment of the present invention provides a system capable of converting an existing factory into a smart factory and an operating method thereof.

A system for managing a smart factory that performs at least one process of processing a material moved through a plurality of moving units according to an embodiment of the present invention is performed while the material is moved through the plurality of moving units. A reference management unit for managing control standards for at least one process, obtains a plurality of sensing values that are information about the material corresponding to a plurality of sensing timings while the at least one process is performed, and the plurality of sensing values an information collecting unit that generates material information in which tags indicating a process in which the plurality of sensing values are obtained among the at least one or more processes are added, respectively, and stores the material information in the reference management unit, and a rate of change of the plurality of sensing values an information pre-processing unit that converts the plurality of sensing values into a plurality of correction values corresponding to a plurality of predetermined reference timings based on A monitoring unit that generates management information to which moving unit tags indicating a corresponding moving unit are added respectively, and an event occurrence location that is a moving unit corresponding to a correction value satisfying the control criterion among the plurality of correction values based on the management information and a control unit configured to execute a command corresponding to the control criterion with respect to an event sensing unit for detecting the event and a moving unit corresponding to the location of the event occurrence.

In the system for managing the smart factory, the information preprocessing unit generates a plurality of user information values corresponding to a user information generation rule input by a user based on the plurality of correction values, and sets the plurality of user information values to the It can be stored in the standard management unit.

In the system for managing the smart factory, the monitoring unit includes user information obtained by adding moving unit tags indicating a moving unit corresponding to the plurality of reference timings among the plurality of moving units to the plurality of user information values. generating, and the event detection unit detects an event occurrence location that is a moving unit corresponding to a user information value satisfying the control criterion among the plurality of user information values based on the user information, and the control unit detects the event occurrence location With respect to the moving unit corresponding to the position, a command corresponding to the control criterion may be executed.

In the system for managing the smart factory, the monitoring unit may monitor the rolling length of the material or the width of the material based on the management information.

In the system for managing the smart factory, the monitoring unit may monitor a history of the at least one process based on the management information.

In the system for managing the smart factory, the monitoring unit may monitor the location of the material based on the management information.

The reference control unit may include a user reference input by a user and a command corresponding to the user reference.

In the system for managing the smart factory, the event detection unit detects an event occurrence position corresponding to the control criterion and an event occurrence position corresponding to the user criterion, respectively, and the control unit includes a command corresponding to the control criterion and Commands corresponding to the user criteria may be respectively executed.

In addition, in the system for managing the smart factory, the plurality of sensing values include sensing values for at least one of temperature, pressure, load, current, length, thickness, or weight of the material, and the tags are, It may include at least one of status information of the at least one or more processes and information on the type of the at least one or more processes.

The system for managing the smart factory may further include a notification unit notifying the user of the occurrence of the event when the event detection unit detects the occurrence of the event.

According to the present technology, a system and an operating method for managing a smart factory according to a user's intention may be provided. According to this technology, operation homogeneity can be secured by overcoming human limitations and suppressing manual operation in the existing factory designed for human operation.

1 is a block diagram illustrating a system for managing a smart factory according to an embodiment of the present invention.
2 and 3 are diagrams for explaining a method of acquiring information related to the occurrence of an event whenever a material passes through a moving unit according to an embodiment of the present invention.
4 is a diagram for explaining a method of equally correcting the sensing timing of material information according to an embodiment of the present invention.
5 is a table for explaining a correction value converted from a sensing value and a moving unit tag according to an embodiment of the present invention.
6 is a diagram for explaining an interface through which a user inputs a control criterion according to an embodiment of the present invention.
7 is a flowchart illustrating a method for managing a smart factory according to an embodiment of the present invention.

Specific structural or functional descriptions for the embodiments according to the concept of the present invention disclosed in this specification or application are only exemplified for the purpose of explaining the embodiments according to the concept of the present invention, and implementation according to the concept of the present invention Examples may be embodied in various forms and should not be construed as being limited to the embodiments described in the present specification or application.

According to an embodiment of the present invention, small and medium-sized enterprises that do not have a factory system other than facilities can secure a smart factory system, and large enterprises can overcome the existing silo and layer-type system limitations, and secure an IoT-based autonomous driving factory solution is possible According to an embodiment of the present invention, the conversion of an existing factory to a smart factory can be promoted in a balanced way in three areas: process, data, and system.

By defining the roles and functions of the components of the factory, and deriving process issues to derive improvement opportunities, the process can be digitized. Specifically, by establishing step-by-step innovation KPIs, establishing step-by-step manpower allocation plans, designing new processes for each step by arranging roles and processes, establishing and evaluating obstacles overcoming measures by deriving step-by-step obstacles, and declaring defined innovation tasks. , the process can be digitized.

Investigate the tag address map, select additional tags and complete the map, install additional required sensors, test additional sensors according to the designed inspection conditions, and install a data relay server to build a sensor and communication equipment operating system Data can be digitized by testing the consistency and real-time of data through tag data structured design, and setting up automatic detection by selecting an automatic detection target.

By selecting an optimized tag collection tool and designing a Micro Service Architecture, data tracking structure, and evaluation model by number of cases, the system can be digitized. Specifically, by selecting and designing specialized modules for each industry, investigating the equipment specification layout, judging and predicting the location of materials, instructing work according to the production schedule, changing the control in real time through process monitoring, and unexpected abnormalities The system can be digitized by detecting and taking action in advance, internalizing company control standards and performing integration tests.

Existing factories were human-driven factories, but smart factories can be data-driven factories. A smart factory can accumulate information without loss and achieve homogeneous performance. Since big data technology can be utilized, a smart factory that responds to collected data in real time can be implemented.

The smart factory management system according to an embodiment of the present invention may be a factory intelligence autonomous solution. Specifically, the smart factory management system may be a horizontal system complementary to the existing Layered system. The smart factory management system can support the integrated design of equipment, operation, and quality, which is a silo system of the past. The smart factory management system can secure an advanced system through objectification of the new standard for AI machine learning, and immediately reflect it in the operating system after automatic learning of machine learning and deep learning. A smart factory management system can provide a setup-type autonomous driving environment to minimize investment per plant.

The smart factory management system according to an embodiment of the present invention can manage production plans and schedules before the process, perform work orders and control during the process, and manage the production performance after the process. The smart factory management system can manage the quality of equipment through abnormal symptom detection, equipment performance evaluation, and condition-based maintenance before idle. The smart factory management system can manage process quality through quality specification deviation detection, dispersion abnormality detection within specifications, and early warning. The smart factory management system can manage product quality through standard quality monitoring, analysis of causes of defects in the format, and quality standard improvement analysis.

The smart factory management system according to an embodiment of the present invention can apply a solution that overcomes the limitations of the device industry through data extraction and process implementation that understands differences between industries. Specifically, the smart factory management system can extract vast amounts of data from facilities, track time-series data connections for each processing point through data pre-processing, and implement various factories and automate data pre-processing through setup-type tracking. The smart factory management system can solve the difficulties of continuous process industrial factories by utilizing data.

The smart factory management system according to an embodiment of the present invention may collect automated data according to a user-defined standardized surrender and collection method. The smart factory management system can track the entire process of the finished product at the time of passing the process, and record the status of equipment, control, quality, etc. at the time of material movement. The smart factory management system can manage the load by brand and species, and automatically recognize and record the wheel loader using RFID attached to the physical yard. The smart factory management system can provide the root cause by automatically driving the statistical analysis of the defect inducing factors when the quality department registers the quality defect inspection results. The smart factory management system can monitor all collected tags 24 hours a day without omission of data from the system, and provide users with autonomous driving capable of 24-hour homogeneous control. Since the smart factory management system shares the entire process status with all users at the same time, it can respond immediately to the before and after process issues, analyze the past operation control performance and cost accrual performance, and recommend the best control method among the past performance and provide it to the user.

1 is a block diagram illustrating a system for managing a smart factory according to an embodiment of the present invention.

Referring to FIG. 1 , a system 100 for managing a smart factory includes a standard management unit 110 , an information collection unit 120 , an information preprocessing unit 130 , a monitoring unit 140 , an event detection unit 150 , and a control unit. 160 and a notification unit. The system 100 for managing the smart factory may collect and store data through a plurality of included modules, track material flow, and monitor the overall status of production and facilities. The system 100 for managing the smart factory may operate the smart factory by organizing the production plan according to the control criteria input by the user. The system 100 for managing the smart factory may perform at least one process of processing a material moved through a plurality of moving units. The system 100 for managing the smart factory may organize and adjust an optimal production plan and operate the smart factory by performing data collection, storage, material flow tracking, and monitoring of the entire production and facility status.

The system 100 for managing the smart factory may include a wired/wireless communication device. The wired/wireless communication device may use a high-speed backbone network of a large-scale communication network capable of providing large-capacity, long-distance voice and data services. The wired/wireless communication device may provide the Internet or a high-speed multimedia service. In some cases, the wireless communication device may use a synchronous mobile communication network or an asynchronous mobile communication network. As an example of the asynchronous mobile communication network, there may be a wideband code division multiple access (WCDMA) type communication network. In this case, the wireless communication device may include a Radio Network Controller (RNC). Meanwhile, although the WCDMA network is taken as an example, a 3G LTE network, a 4G network, other next-generation communication networks such as 5G, and other Internet protocol networks based on Internet protocols may be used. The components of the system 100 for managing the smart factory may share information collected in the smart factory through a wired/wireless communication device. The components of the system 100 for managing the smart factory can improve inefficiency problems that may occur in the production site by utilizing two-way ?h communication.

The reference management unit 110 may manage control standards for at least one or more processes performed while the material is moved through the plurality of moving units. The control criterion may be a criterion for determining whether an event has occurred. The reference management unit 110 may include a command corresponding to the control reference. For example, when the length, weight, or thickness of the material does not meet a predetermined control criterion, an event of material defect may occur. The control criterion may include a command instructing additional processing to the material in response to the defect of the material. Additional operation allows the material properties to meet the control criteria.

The criterion manager 110 may include a user criterion input by a user and a command to be executed when the user criterion is satisfied. The material may be processed through at least one process in response to user standards. The standard management unit 110 may set and manage factory, process, facility information, working conditions, or control standards for producing a product.

The user may input a user criterion for determining whether an event has occurred. The user can set events such as defects in the finished product, combination of materials being processed, breakdown of processing equipment, and completion of production of the finished product. A user may set a command corresponding to the occurrence of an event. The user may set a command for adding a correction process in response to the occurrence of a defect in the finished product or a combination of materials being processed. The user may set a command to instruct the replacement or bypass process of the equipment in response to the failure of the equipment. The user may set a command for changing the production plan based on the production amount in response to the completion of production of the finished product. The user can set a command to increase or decrease the production volume based on the finished product production and inventory throughput.

The reference management unit 110 may store a plurality of control standards. The stored control criteria are independent of each other, but priority may be applied according to the user's setting. The reference management unit 110 may receive the control reference from the user and update the existing control reference.

The standard management unit 110 registers and utilizes state recognition standards, work standards, recipes, etc. necessary for the production site, and may provide a guide so that the user can change and upgrade the standards by himself/herself. The reference management unit 110 may secure an autonomous driving conversion technology database through machine learning. The standard management unit 110 may register standard data such as factories, processes, equipment, products, work standards, and control standards required for product production. The standard management unit 110 may store autonomous driving standards capable of managing the smart factory without developing a separate application.

The information collection unit 120 acquires a plurality of sensing values that are information about a material corresponding to a plurality of sensing timings while at least one process is being performed, and applies the plurality of sensing values to the plurality of sensing values of the at least one process. It is possible to generate material information to which tags indicating processes in which values are obtained are added, respectively, and store the material information in the reference management unit 110 . The plurality of sensing values may include information related to the occurrence of an event. The information collection unit 120 may collect information sensed by a facility in which at least one or more processes are performed regardless of the format. For example, the plurality of sensed values include sensed values for at least one of temperature, pressure, load, current, length, thickness, or weight of a material, and the tags include state information of at least one or more processes or at least one or more It may include at least one of process type information.

The information collection unit 120 may sense data of various protocols based on the OPC UA standard, and may also sense data in the form of a database or a file. The information collection unit 120 may sense the location information through a distributed parallel processing method.

The information collection unit 120 may share and utilize the collected information without adding space restrictions and collection costs. The information collection unit 120 may collect location information immediately upon generation and may support various tags. The collected location information may be transmitted to the cab, engineers, managers, and the like.

The information preprocessor 130 may convert the plurality of sensed values into a plurality of correction values corresponding to a plurality of predetermined reference timings based on the change rates of the plurality of sensed values. The information pre-processing unit 130 may easily pre-process the location information sensed by the information collection unit 120 for future analysis.

Specifically, sensing timings at which a plurality of sensing values are sensed may be different. Since the timing at which the plurality of sensing values are collected is different, it may be difficult to compare the collected data. The information preprocessor 130 may calculate a change rate of the plurality of sensed values based on the plurality of sensed values. The information preprocessor 130 may convert the plurality of correction values into a plurality of correction values corresponding to a plurality of predetermined reference timings based on the change rates of the plurality of sensed values. The information preprocessor 130 may calculate a plurality of correction values by using a regression model or may calculate a plurality of correction values according to criteria defined for each tag. Material information having different sensing timings may be converted into a plurality of correction values corresponding to a plurality of predetermined reference timings.

The information preprocessor 130 may generate a plurality of user information values corresponding to the user information generation rule input by the user based on the plurality of correction values, and store the plurality of user information values in the reference management unit 110 . The information preprocessor 130 may generate user information desired by the user. The generated user information may be delivered to the user through a message or may be used to determine whether an event has occurred.

For example, the information pre-processing unit 130 may calculate the total, average, and the like of specific location information at the point in time when the location information is sensed. The information pre-processing unit 130 may calculate a specific value according to a user-defined formula at the point in time when the location information is sensed. The information pre-processing unit 130 may calculate a material state, a facility state, or a circulating product state, etc. in units of materials during monitoring. The calculated user information may be stored in the reference management unit 110 .

The information preprocessor 130 may support a preprocessing correction rule for each tag. When missing data is generated at the sensing timing, the information preprocessor 130 calculates a plurality of correction values according to criteria (average value, maximum value, minimum value, etc.) defined for each tag, and sets different sensing timings of the sensing device as the reference sensing timing can be sorted by

The monitoring unit 140 may generate management information in which moving unit tags indicating a moving unit corresponding to a plurality of reference timings among the plurality of moving units are respectively added to the plurality of correction values. Even if at least one process of processing the material is different, the moving unit may be the same. The tags added to the material may be different according to at least one process of processing the material. Even if the material information corresponding to the same moving unit, the tag added to the material may be different.

The monitoring unit 140 may monitor the material before production, the material in production, and the material after production based on the management information. Specifically, the monitoring unit 140 may monitor the rolling length of the material or the width of the material based on the management information. The monitoring unit 140 may monitor the history of at least one process based on the management information. The monitoring unit 140 may monitor the location of the material based on the management information. That is, the monitoring unit 140 may track the flow of materials and monitor the operating status of the entire facility. The monitoring unit 140 may monitor a process passing processing point or a longitudinal processing point.

The monitoring unit 140 may map a material number, a product number, an instruction number, a position before and after processing, etc. to the tags added to the material information by the information collection unit 120 and complete various lot genealogy. The monitoring unit 140 may align the material location recognition tags (eg, oxygen plant, steel mill, raw material, coke, tundish, cutting, oxygen saturation, molten steel mixed cast, etc.). In the case of a mass material, the material location recognition tag may be a steel for playing or a slab. In the case of a general material, the material location recognition tag may be a hot rolling furnace, rolling, or the like.

The monitoring unit 140 may arrange the rolling length and variable width (roll load, coolant temperature, pressure, etc.). The monitoring unit 140 may use a method of the mass material constant amount rule or a method obtained by multiplying the outer diameter of the roll by the processing time. The monitoring unit 140 may track the material processing history (application, purpose conversion, correction, scarp history, etc.). The monitoring unit 140 may perform order tracking, resource tracking, inventory tracking, and material tracking using methods such as Top-Tail conversion, top-bottom conversion, horizontal-vertical conversion, cutting, shearing, and specimen representativeness tracking.

The monitoring unit 140 may support a flexible setup (Single Source Rollout). The monitoring unit 140 may register factory layout, process, and facility standards. Accordingly, the existing system that has been rolled out can be applied without developing the system each time when expanding the factory.

The monitoring unit 140 tracks the flow of materials by linking the movement of materials and tags generated from facilities based on factory, process, facility information, tags, work standards, control standards, etc., and monitors the operation status of the entire facility. can

The information preprocessor 130 may generate a plurality of user information values corresponding to the user information generation rule input by the user based on the plurality of correction values, and store the plurality of user information values in the reference management unit 110 . The monitoring unit 140 may generate user information by adding moving unit tags indicating a moving unit corresponding to a plurality of reference timings among a plurality of moving units to a plurality of user information values, respectively. The event detection unit 150 may detect an event occurrence location, which is a moving unit, corresponding to a user information value satisfying a control criterion among a plurality of user information values, based on the user information. The controller 160 may execute a command corresponding to the control criterion with respect to the moving unit corresponding to the event occurrence location.

The event detection unit 150 may detect an event occurrence position, which is a moving unit, corresponding to a correction value that satisfies a control criterion among a plurality of correction values, based on the management information. The event detection unit 150 may detect whether an event has occurred and a location where the event occurs. The event detection unit 150 may detect an event occurring in at least one or more processes, equipment, and quality based on the control criteria stored in the reference management unit 110 .

The event detection unit 150 may detect defects occurring in the processed material, deterioration of the performance of the equipment processing the material, the arrival of the maintenance time, the arrival of the time of replacement of consumables, or the increase or decrease of the quantity of products produced in the smart factory. The event detection unit 150 may transmit the occurrence of an event to the reference management unit 110 according to the detection result. The reference management unit 110 may transmit a command corresponding to the generated event to the control unit 160 .

The event detection unit 150 may detect a situation close to infinity occurring in the smart factory even from a remote location, and provide timely information to the user and the driving system for 24 hours. The event detection unit 150 may detect data that exceeds the thresholds of work standards and facility control standards for producing products and event data such as equipment stop, operation, replacement of consumables, and arrival of maintenance time.

The plurality of sensing values stored in the reference management unit 110 may be changed into a plurality of correction values by the information pre-processing unit 130 . The information preprocessor 130 may store user information in the reference management unit 110 . The event detection unit 150 may compare the control criterion with at least one of a plurality of sensed values, a plurality of correction values, or a plurality of user information values stored in the reference management unit 110 . The event detection unit 150 generates an event based on the management information when at least one of a plurality of sensed values, a plurality of correction values, or a plurality of user information values stored in the reference management unit 110 meets a control criterion. position can be detected.

The reference management unit 110 may store a plurality of control standards. The event detecting unit 150 may independently detect whether a plurality of events corresponding to a plurality of control criteria have occurred. That is, the event detection unit 150 may detect whether the replacement time of the equipment for processing another material has arrived, apart from detecting a defect occurring in the moving material. However, the user may set the priority among the plurality of control criteria. When the priority is set, the event detection unit 150 may detect whether an event has occurred in response to the priority.

The control unit 160 may execute a command corresponding to the control criterion with respect to the moving unit corresponding to the event occurrence position. Specifically, the control unit 160 may control a moving unit corresponding to the event occurrence position among the plurality of moving units. , it is possible to execute a command corresponding to the occurrence of an event included in the control standard with respect to at least one of the material moved through the moving unit or the equipment processing the material. The control unit 160 may perform a schedule adjustment of the smart factory or a command corresponding to an event based on the detection result of the event detection unit 150 .

Specifically, the control unit 160 may adjust the supply and demand of the material, and change the production amount according to the supply and demand of the material. The control unit 160 may instruct the dispensing or procurement of the material in real time through understanding the state of the material. The control unit 160 may adjust the arrangement of the material according to the production amount of the product. The control unit 160 may change the production amount according to the state of the equipment processing the material. The control unit 160 may reduce the production of the equipment when the supply and demand of the material is reduced. When the order quantity of the product increases, the control unit 160 may increase the supply of the material to increase the production of the product. That is, the control unit 160 may adjust the production plan in response to the occurrence of an event affecting the production plan based on the detection result of the event detection unit 150 .

The control unit 160 may support a no-touch operation that can cope with a situation changed in real time after a production instruction. The control unit 160 adjusts the supply and demand of raw materials and sub-materials in real time through dispensing through real-time raw material and sub-material status identification, procurement instructions, production order change processing according to raw material and sub-material conditions, and timely arrangement of raw materials and sub-materials in consideration of the production line conditions. can The control unit 160 grasps real-time production capacity through a system interface related to real-time facility, process status identification, process capacity calculation, production instruction change according to process capacity identification, inspection when equipment abnormality is detected, maintenance notification issuance and instruction change performance related system interface, You can change the instructions. The control unit 160 may perform comprehensive production and facility status control through logistics procurement, facility status, statistical process control display, Overview&Drill to Detail function provision, and Remote Monitoring&Operation service. The control unit 160 may adjust the work order by determining the operation status through the registration, organization, and monitoring of the production progress status of the production plan, and may adjust the production plan when an event affecting the production plan occurs.

The reference management unit 110 may store a plurality of control standards. The reference management unit 110 may include a plurality of commands corresponding to a plurality of control standards. The controller 160 may independently execute a plurality of commands corresponding to the occurrence of a plurality of events. That is, the controller 160 may control the production volume of products produced in the smart factory separately from performing an additional correction process for the occurrence of material defects.

The system 100 for managing the smart factory may further include a notification unit notifying the user of the occurrence of the event when the event detection unit 150 detects the occurrence of the event. The notification unit may transmit a pop-up message to the user or notify the occurrence of an event through the interface of the system 100 for managing the smart factory. The notification unit may notify the user not only of the event, but also the response action for the event and the situation after the response.

2 and 3 are diagrams for explaining a method of acquiring information related to the occurrence of an event whenever a material passes through a moving unit according to an embodiment of the present invention.

2 and 3, while one material 215 of the plurality of materials 210 is moved through the plurality of moving units 241, 242, 243, 244, 245, A process 230 ) and B process 235 may be performed to produce a finished product 220 . Although one material 215 is moved in FIGS. 2 and 3 , the embodiment of the present invention is not limited thereto, and a plurality of materials 210 may be moved through different moving units. In addition, in the embodiment of the present invention, the number of moving units and the number of processes for processing the material may be different. The information acquisition method of FIGS. 2 and 3 may correspond to the description of FIG. 1 .

In FIG. 2 , one material 215 may be moved by the first moving unit 241 . Process A 230 may be performed on the material 215 moved by the first moving unit 241 . The information collection unit 120 senses a plurality of sensing values that are information on the material 215 while the A process 230 is performed, and material information in which tags for the A process 230 are added to the plurality of sensing devices. can be obtained. The location information on the material 215 may be stored in the reference management unit 110 . The plurality of sensed values stored in the reference management unit 110 may be converted into a plurality of correction values corresponding to a plurality of predetermined reference timings by the information pre-processing unit 130 . The monitoring unit 140 may add a moving unit tag indicating the first moving unit 241 corresponding to a predetermined reference timing to some of the plurality of correction values for the material 215 .

Through a plurality of correction values corresponding to the first moving unit 241, the monitoring unit 140 can know the temperature, pressure, load, current, length, thickness or weight of the material 215 corresponding to the predetermined reference timing. And, through the tags added to the plurality of correction values, it is possible to know the unique number of the material, the type of the material, the state of at least one or more processes, or the type of at least one or more processes. When the plurality of correction values corresponding to the first moving unit 241 satisfy the control criterion stored in the reference management unit 110, the event detection unit 150 can know that an event has occurred in the first moving unit 241. .

In FIG. 3 , one material 215 may be moved from the first moving unit 241 to the second moving unit 242 over time. Similarly, as time passes, one material 215 is moved to the last moving unit 245 , and when the A and B processes are completed, the finished product 220 may be produced.

Since the moving unit is a unit for moving the material, it may be independent of at least one or more processes of processing the material. That is, different processes may be performed on the material moved through one moving unit. In FIG. 3 , the process A 230 may be performed on a part of one material 215 , and the process B 235 may be performed on the other part of the material 215 .

The information collection unit 120 senses a plurality of sensed values that are information on the material 215 while the A process 230 and the B process 235 are performed, and receives the plurality of sensed values for the process A 230 . It is possible to acquire tags and material information to which tags for the B process 235 are added. The location information on the material 215 may be stored in the reference management unit 110 . The plurality of sensed values stored in the reference management unit 110 may be converted into a plurality of correction values corresponding to a plurality of predetermined reference timings by the information pre-processing unit 130 . The monitoring unit 140 may add a moving unit tag indicating the second moving unit 242 corresponding to a predetermined reference timing to some of the plurality of correction values for the material 215 .

The material information generated by the information collection unit 120 may correspond to a moving unit that moves the material. When an event occurs in the material, the event detection unit 150 may detect an event occurrence location corresponding to the moving unit. The controller 160 may execute a command corresponding to the event on the moving unit and the moving unit and related materials or equipment.

For example, it may be assumed that the thickness of the material in the third moving unit 243 exceeds the control standard. Process B 235 may be a processing process for controlling the thickness of the material. The event detection unit 150 may detect a material defect in the third moving unit 243 and transmit the detection result to the control unit 160 . The control unit 160 may perform a process of reducing the thickness of the material in addition to the equipment processing the material moving through the third moving unit 243 in which the defect is detected. When the material is also defective in the fourth moving unit 244 , similarly, the control unit 160 may cause an additional process to be performed in the equipment related to the fourth moving unit 244 . Afterwards, when a defect is not detected in the fifth moving unit 245 , the controller 160 may not perform an additional process.

4 is a diagram for explaining a method of equally correcting the sensing timing of material information according to an embodiment of the present invention.

Referring to FIG. 4 , material information (temperature, pressure, load, current) having different sensing timings may be stored. The method of pre-processing the location information of FIG. 4 may correspond to the description of FIG. 1 .

The information collection unit 120 senses a plurality of sensing values that are information on a material, and obtains material information in which a tag indicating a process in which a plurality of sensing values among at least one process is obtained is added to the plurality of sensing values, The location information may be stored in the reference management unit 110 . The sensed material information may have different sensing timings depending on sensing equipment. If the sensing timing of the location information is different, it may be difficult for the event detection unit 150 to compare the location information. The information preprocessing unit 130 calculates change rates of a plurality of sensing values based on the plurality of sensing values, and converts the plurality of sensing values based on the change rates of the plurality of sensing values into a plurality of predetermined reference timings. can be converted into correction values. The information pre-processing unit 130 may easily pre-process the location information generated by the information collection unit 120 for future analysis.

In FIG. 4 , the sensing period of the material information on temperature and the material information on pressure are the same, but the sensing timing for sensing the material information may be different from each other. The material information for temperature and material information for current may sense the same number of times but have different sensing timings.

The information preprocessor 130 may calculate a plurality of correction values by using a regression model or may calculate a plurality of correction values according to criteria defined for each tag. A plurality of sensing values having different sensing timings may be changed into a plurality of correction values corresponding to a plurality of predetermined reference timings.

For example, the information preprocessor 130 may generate a regression model based on a plurality of sensing values of the load. A plurality of correction values corresponding to a plurality of predetermined reference timings may be calculated based on the generated regression model. The information preprocessor 130 may calculate a plurality of correction values corresponding to a plurality of predetermined reference timings according to a standard defined for each tag. A plurality of correction values corresponding to a plurality of predetermined reference timings may be calculated using an average value of the sensing timing based on the material information on the pressure.

The plurality of correction values correspond to a plurality of predetermined reference timings, and the management information includes moving unit tags indicating a moving unit corresponding to a plurality of reference timings among a plurality of moving units to the plurality of correction values, so event detection The unit 150 may detect whether an event has occurred and a location of the event based on the management information.

5 is a table for explaining a correction value converted from a sensing value and a moving unit tag according to an embodiment of the present invention.

Referring to FIG. 5 , a plurality of sensing values sensed at a plurality of sensing timings may be converted into a plurality of correction values. Specifically, material information in which tags indicating a process in which a plurality of sensed values are obtained among at least one or more processes may be added to a plurality of sensed values, respectively, may be generated. The plurality of sensed values may be converted into a plurality of correction values corresponding to a plurality of predetermined reference timings based on change rates of the plurality of sensed values. Management information in which moving unit tags indicating a moving unit corresponding to a plurality of reference timings among a plurality of moving units are respectively added to a plurality of correction values may be generated.

In FIG. 5 , a plurality of sensing values X1, X2, X3, X4, X5, and X6 may be obtained at the plurality of sensing timings t1, t2, t3, t4, t5, and t6. The types of the plurality of sensing values X1, X2, X3, X4, X5, and X6 may be different from each other. In FIG. 5 , it may be assumed that X1, X3, X4, and X6 are information on the temperature of the material, and X2 and X5 are information on the length of the material. Material information in which tags (process 1, process 2) are added to a plurality of sensing values (X1, X2, X3, X4, X5, X6) may be generated.

The plurality of sensing values may be converted into a plurality of correction values Y1 , Y2 , Y3 , Y4 , and Y5 corresponding to the predetermined reference timings tr1 , tr2 , and tr3 . Even when the reference timings tr1, tr2, and tr3 are the same, when the types of the plurality of sensing values X1, X2, X3, X4, X5, and X6 are different, the plurality of correction values Y1, Y2, Y3, Y4, Y5 ) may be different. For example, since X1 is information about the temperature of the material and X2 is information about the length of the material, the types of information are different. When the reference timing is tr1, the sensed values X1 and X2 may be converted into correction values Y1 and Y2. Conversely, X3 and X4, which are information on the temperature of the material, may be the correction value Y3 when the reference timing is tr2.

The moving unit tags (moving unit 1, moving unit 2) may be added to the plurality of correction values Y1, Y2, Y3, Y4, and Y5. The moving unit tags (moving unit 1, moving unit 2) indicate a moving unit to which a material is moved, and may be independent of at least one or more processes performed on the material. The moving unit tags (moving unit 1 and moving unit 2) may indicate a moving unit corresponding to a plurality of reference timings among a plurality of moving units.

6 is a diagram for explaining an interface through which a user inputs a control criterion according to an embodiment of the present invention.

Referring to FIG. 6 , the user may input a user criterion that is a criterion for determining an event and a command corresponding to the occurrence of the event through the interface 600 . The smart factory can be managed based on the user criteria input by the user. The user reference input method of FIG. 6 may correspond to the description of FIG. 1 .

The reference management unit 110 may manage control standards for at least one or more processes performed while the material is moved through the plurality of moving units. The user may store the user standard corresponding to the control standard in the standard management unit 110 .

The user may input user criteria through the interface 600 . The user criterion may correspond to a control criterion for determining whether an event has occurred. When an event occurs, the controller 160 may execute a command corresponding to the user criterion. The user may input the first user criterion 610 composed of predetermined terms in the event determination criterion input field. The user may input the first command 630 corresponding to the first user criterion 610 .

The event determination criterion may include a plurality of user criteria. A plurality of commands may be performed in response to the occurrence of an event. Whether an event has occurred may be determined based on a plurality of user criteria. For example, the user may set that a defect occurs only when both the length and thickness of the material exceed the user standard. The user may input a command instructing additional processing for the length and thickness of the material in response to the defect of the material. The user may register the first user criterion 610 and the second user criterion 620 , and register the first command 630 and the second command 640 corresponding to the occurrence of an event. The reference management unit 110 may store a control reference including a first user reference 610 , a second user reference 620 , a first command 630 , and a second command 640 .

7 is a flowchart illustrating a method for managing a smart factory according to an embodiment of the present invention.

Referring to FIG. 7 , a system for managing a smart factory acquires a plurality of sensing values that are information about a material corresponding to a plurality of sensing timings while at least one or more processes are performed, and based on a change rate of the plurality of sensing values A moving unit tag that converts a plurality of sensing values into a plurality of correction values corresponding to a plurality of predetermined reference timings, and indicates a moving unit corresponding to a plurality of reference timings among the plurality of moving units to the plurality of correction values. Generate management information by adding them, and detect an event occurrence position that is a moving unit corresponding to a correction value that satisfies a control criterion among a plurality of correction values based on the management information, and for a moving unit corresponding to the event occurrence position , the command corresponding to the control criterion can be executed. The method of managing the smart factory of FIG. 7 may correspond to the description of FIG. 1 .

In step S701, the information collection unit 120 acquires a plurality of sensing values that are information about a material corresponding to a plurality of sensing timings while at least one or more processes are being performed, and adds the plurality of sensing values to the at least one process. It is possible to generate material information in which tags indicating a process in which a plurality of sensed values are obtained, respectively, are added, and store the material information in the reference management unit 110 . The plurality of sensing values may include information related to the occurrence of an event. The information collection unit 120 may collect information sensed by a facility in which at least one or more processes are performed regardless of the format. For example, the plurality of sensed values include sensed values for at least one of temperature, pressure, load, current, length, thickness, or weight of a material, and the tags include state information of at least one or more processes or at least one or more It may include at least one of process type information.

In operation S702 , the information preprocessor 130 may convert the plurality of sensed values into a plurality of correction values corresponding to a plurality of predetermined reference timings based on the change rates of the plurality of sensed values. The information pre-processing unit 130 may easily pre-process the location information sensed by the information collection unit 120 for future analysis.

Specifically, sensing timings at which a plurality of sensing values are sensed may be different. Since the timing at which the plurality of sensing values are collected is different, it may be difficult to compare the collected data. The information preprocessor 130 may calculate a change rate of the plurality of sensed values based on the plurality of sensed values. The information preprocessor 130 may convert the plurality of correction values into a plurality of correction values corresponding to a plurality of predetermined reference timings based on the change rates of the plurality of sensed values. The information preprocessor 130 may calculate a plurality of correction values by using a regression model or may calculate a plurality of correction values according to criteria defined for each tag. Material information having different sensing timings may be converted into a plurality of correction values corresponding to a plurality of predetermined reference timings.

In step S703 , the monitoring unit 140 may generate management information in which moving unit tags indicating a moving unit corresponding to a plurality of reference timings among the plurality of moving units are added to the plurality of correction values, respectively. Even if at least one process of processing the material is different, the moving unit may be the same. The tags added to the material may be different according to at least one process of processing the material. Even if the material information corresponding to the same moving unit, the tag added to the material may be different.

The monitoring unit 140 may monitor the material before production, the material in production, and the material after production based on the management information. Specifically, the monitoring unit 140 may monitor the rolling length of the material or the width of the material based on the management information. The monitoring unit 140 may monitor the history of at least one process based on the management information. The monitoring unit 140 may monitor the location of the material based on the management information. That is, the monitoring unit 140 may track the flow of materials and monitor the operating status of the entire facility. The monitoring unit 140 may monitor a process passing processing point or a longitudinal processing point.

In step S704 , the event detection unit 150 may detect an event occurrence position, which is a moving unit, corresponding to a correction value satisfying a control criterion among a plurality of correction values based on the management information. The event detection unit 150 may detect whether an event has occurred and a location where the event occurs. The event detection unit 150 may detect an event occurring in at least one or more processes, equipment, and quality based on the control criteria stored in the reference management unit 110 .

The event detection unit 150 may detect defects occurring in the processed material, deterioration of the performance of the equipment processing the material, the arrival of the maintenance time, the arrival of the time of replacement of consumables, or the increase or decrease of the quantity of products produced in the smart factory. The event detection unit 150 may transmit the occurrence of an event to the reference management unit 110 according to the detection result. The reference management unit 110 may transmit a command corresponding to the generated event to the control unit 160 .

When the plurality of correction values do not meet the control criteria for determining whether an event occurs, the monitoring unit 140 may monitor the material based on the management information (step S703).

In step S705 , the control unit 160 may execute a command corresponding to the control criterion with respect to the moving unit corresponding to the event occurrence position. Specifically, the control unit 160 determines the event occurrence position among the plurality of moving units. A command corresponding to the occurrence of an event included in the control criterion may be executed with respect to at least one of the corresponding moving unit, the material moved through the moving unit, or the equipment for processing the material. The control unit 160 may perform a schedule adjustment of the smart factory or a command corresponding to an event based on the detection result of the event detection unit 150 .

Specifically, the control unit 160 may adjust the supply and demand of the material, and change the production amount according to the supply and demand of the material. The control unit 160 may instruct the dispensing or procurement of the material in real time through understanding the state of the material. The control unit 160 may adjust the arrangement of the material according to the production amount of the product. The control unit 160 may change the production amount according to the state of the equipment processing the material. The control unit 160 may reduce the production of the equipment when the supply and demand of the material is reduced. When the order quantity of the product increases, the control unit 160 may increase the supply of the material to increase the production of the product. That is, the control unit 160 may adjust the production plan in response to the occurrence of an event affecting the production plan based on the detection result of the event detection unit 150 .

According to an embodiment of the present invention, since the system for managing the smart factory detects the moving unit in which the event has occurred, it can respond to the occurrence of the event according to the moving unit. It is possible to minimize the inefficiency that occurs when responding to the entire process of processing the material.

According to an embodiment of the present invention, a smart factory can be managed according to user criteria input by a user. Various types of smart factories can be managed according to an embodiment of the present invention without developing a separate application.

According to an embodiment of the present invention, even if the sensing timings of the plurality of sensing values are different, the plurality of sensing values are converted into a plurality of correction values corresponding to a plurality of predetermined reference timings based on the change rates of the plurality of sensing values. can Since the analysis of material information can be facilitated, the analysis of material information can be accelerated.

Those of ordinary skill in the art to which the present invention pertains, since the present invention can be embodied in other specific forms without changing the technical spirit or essential characteristics thereof, the embodiments described above are illustrative in all respects and not limiting. have to understand The scope of the present invention is indicated by the following claims rather than the above detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included in the scope of the present invention. do.

100: A system for managing a smart factory
110: standards management unit
120: information collection unit
130: information preprocessor
140: monitoring unit
150: event detection unit
160: control unit

Claims (10)

In the system for managing a smart factory that performs at least one process of processing a material moved through a plurality of moving units,
a reference management unit for managing control standards for the at least one process performed while the material moves through the plurality of moving units;
While the at least one or more processes are performed, a plurality of sensing values that are information about the material corresponding to a plurality of sensing timings are obtained, and the plurality of sensing values among the at least one or more processes are obtained from the plurality of sensing values. an information collection unit that generates material information to which tags indicating a process performed are added, and stores the material information in the reference management unit;
an information preprocessing unit converting the plurality of sensed values into a plurality of correction values corresponding to a plurality of predetermined reference timings based on a change rate of the plurality of sensed values;
a monitoring unit generating management information in which moving unit tags indicating a moving unit corresponding to the plurality of reference timings among the plurality of moving units are added to the plurality of correction values, respectively;
an event detection unit for detecting an event occurrence location, which is a moving unit, corresponding to a correction value satisfying the control criterion among the plurality of correction values, based on the management information; and
and a controller configured to execute a command corresponding to the control criterion with respect to the moving unit corresponding to the location of the event occurrence.
According to claim 1, wherein the information pre-processing unit,
A system for generating a plurality of user information values corresponding to a user information generation rule input by a user based on the plurality of correction values, and storing the plurality of user information values in the reference management unit.
According to claim 2, wherein the monitoring unit,
generating user information by adding moving unit tags indicating a moving unit corresponding to the plurality of reference timings among the plurality of moving units to the plurality of user information values, respectively;
The event detection unit,
Detects an event occurrence location that is a moving unit corresponding to a user information value that satisfies the control criterion among the plurality of user information values based on the user information,
The control unit is
A system for executing a command corresponding to the control criterion with respect to the moving unit corresponding to the location of the event occurrence.
According to claim 1, wherein the monitoring unit,
A system for monitoring the rolling length of the material or the width of the material based on the management information.
According to claim 1, wherein the monitoring unit,
A system for monitoring the history of the at least one or more processes based on the management information.
According to claim 1, wherein the monitoring unit,
A system for monitoring the location of the material based on the management information.
According to claim 1, wherein the standard management unit,
A system including a user criterion input by a user and a command corresponding to the user criterion.
The method of claim 7, wherein the event detection unit,
Detecting an event occurrence position corresponding to the control criterion and an event occurrence position corresponding to the user criterion, respectively,
The control unit is
A system for executing a command corresponding to the control criterion and a command corresponding to the user criterion, respectively.
According to claim 1, wherein the plurality of sensing values,
including a sensing value for at least one of temperature, pressure, load, current, length, thickness, or weight of the material,
The tags are
A system comprising at least one of status information of the at least one or more processes or information on the type of the at least one or more processes.
According to claim 1,
The system further comprising a notification unit notifying the user of the occurrence of the event when the event detection unit detects the occurrence of the event.

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