Method and apparatus for controlling smart factory for energy reduction

Abstract

The present invention relates to a method and an apparatus for controlling a smart factory for energy reduction. The method comprises: a step in which an electronic device checks the amount of power consumed in each process on the basis of power data and production data of each process related to the smart factory; a step in which the electronic device selects at least one process on the basis of the amount of power consumed in each process; a step in which the electronic device checks the amount of power consumed when multiple devices included in the selected selection process are not in operation; and a step in which the electronic device controls an operation of at least one device selected from among the multiple devices on the basis of the amount of power consumed during non-operation. Other embodiments are also applicable.

Description

Smart factory control method and device for energy reduction

[0001] The present invention relates to a smart factory control method and device for energy reduction.

[0002] Recently, in line with the trend of the 4th Industrial Revolution, research on smart factories, which are a fusion of ICT (information communication technology) and manufacturing, is being actively conducted.

[0003] Currently, manufacturing companies' factory operations rely on energy management systems that individually manage each facility and equipment part. This results in low energy efficiency and a lack of comprehensive and systematic energy management within manufacturing companies.

[0004] However, establishing an environment suitable for energy management in a smart factory requires significant costs and facility investments, making it difficult for manufacturing companies to actively adopt this approach. Furthermore, given the wide variety of operational management, facilities, and equipment within manufacturing companies, applying a uniform smart factory model presents challenges.

[0005] Therefore, there is a need for intelligent energy management methods and devices that enable real-time energy management through learning tailored to the production process and facilities within manufacturing companies.

[0006] Embodiments of the present invention for solving these conventional problems provide a smart factory control method and device for energy reduction that can minimize standby time and delay time for each piece of equipment by controlling the operation of the equipment by linking power data and production data for a plurality of pieces of equipment constituting a smart factory.

[0007] In addition, embodiments of the present invention provide a smart factory control method and device for energy reduction, which can select equipment with the lowest energy efficiency among a plurality of equipment constituting a smart factory and control the operation of the selected equipment.

[0008] A smart factory control method according to an embodiment of the present invention is characterized by including a step in which an electronic device checks power consumption for each process based on power data and production data for each process related to a smart factory, a step in which the electronic device selects at least one process based on the power consumption for each process, a step in which the electronic device checks power consumption during non-operation of a plurality of pieces of equipment included in the selected selection process, and a step in which the electronic device controls the operation of at least one piece of selected equipment selected from among the plurality of pieces of equipment based on the power consumption during non-operation.

[0009] In addition, the step of checking the power consumption during non-operation is characterized in that the electronic device checks the power consumption during the non-operation time including the standby time and delay time for the plurality of equipment.

[0010] In addition, the step of controlling the operation of the selection equipment is characterized by including a step of the electronic device monitoring the operation of the selection process and a step of the electronic device deactivating the operation of the selection equipment when the operation of the selection process converges to an operation stop condition.

[0011] In addition, after the step of disabling the operation of the selection equipment, the electronic device further comprises a step of monitoring the operation of other equipment included in the selection process, a step of activating the operation of the selection equipment if activation of the selection equipment is required based on the monitoring result, and a step of disabling the operation of the selection equipment again after a threshold time has elapsed.

[0012] In addition, the electronic device is characterized in that it further includes a step of checking the time at which a product being produced in a preceding process of the selection process reaches the selection process when the selection process converges to an operation start condition, and a step of the electronic device activating the operation of the selection equipment based on the checked time.

[0013] In addition, the motion stop condition is characterized by being a condition in which the motion signal for the above selection process is maintained at 0 for a critical time or longer.

[0014] In addition, the operation start condition is characterized by being a condition in which at least one preceding process of the above selection process operates.

[0015] In addition, the electronic device is characterized by further including a step of generating and displaying the power data and the production data in the form of at least one of a graph and a table.

[0016] In addition, the step of selecting at least one process is characterized in that the step of selecting the process having the highest power consumption per process is selected as the selected process.

[0017] In addition, after the step of checking the power consumption during non-operation of multiple pieces of equipment, the method further comprises the step of selecting the equipment with the highest power consumption during non-operation as the selected equipment.

[0018] In addition, a smart factory control device according to an embodiment of the present invention includes a memory including at least one instruction and a control unit that executes the at least one instruction stored in the memory, wherein the control unit selects at least one process based on power consumption for each process confirmed based on power data and production data for each process related to a smart factory, and controls the operation of at least one selected equipment selected from among the plurality of equipment by confirming power consumption when not in operation for a plurality of equipment included in the selected selected process.

[0019] In addition, the control unit is characterized in that it checks the power consumption during non-operation time including the standby time and delay time for the plurality of equipment.

[0020] In addition, the control unit is characterized in that it monitors the operation of the selection process and generates a control signal to deactivate the operation of the selection equipment when the operation of the selection process converges to an operation stop condition.

[0021] In addition, the control unit is characterized in that it monitors the operation of other equipment included in the selection process, activates the operation of the selection equipment when activation of the selection equipment is required, and deactivates the operation of the selection equipment again after a threshold time has elapsed.

[0022] In addition, the control unit is characterized in that, when the selection process converges to the operation start condition, it checks the time at which a product being produced in a preceding process of the selection process reaches the selection process, and activates the operation of the selection equipment based on the checked time.

[0023] In addition, the motion stop condition is characterized by being a condition in which the motion signal for the above selection process is maintained at 0 for a critical time or longer.

[0024] In addition, the operation start condition is characterized by being a condition in which at least one preceding process of the above selection process operates.

[0025] In addition, it is characterized by further including a display unit that displays power data and the production data in the form of at least one of a graph and a table.

[0026] In addition, the control unit is characterized in that it selects the process with the highest power consumption per process as the selected process.

[0027] In addition, the control unit is characterized in that it selects the equipment with the highest power consumption during non-operation as the selected equipment.

[0028] As described above, the smart factory control method and device for energy reduction according to the present invention has the effect of minimizing the waiting time and delay time for each piece of equipment by controlling the operation of the equipment by linking the power data and production data for a plurality of pieces of equipment constituting the smart factory.

[0029] In addition, the smart factory control method and device for energy reduction according to the present invention has the effect of maximizing energy efficiency while maintaining production efficiency in a smart factory by selecting equipment with the lowest energy efficiency among a plurality of equipment constituting a smart factory and controlling the operation of the selected equipment.

[0030] FIG. 1 is a block diagram showing the main configuration of an electronic device that controls a smart factory according to an embodiment of the present invention.

[0031] FIG. 2 is a flowchart illustrating a method for selecting a device with the highest power consumption when not in operation in a smart factory according to an embodiment of the present invention.

[0032] FIG. 3 is a flowchart illustrating a method for controlling a device that consumes the most power when not in operation to reduce energy according to an embodiment of the present invention.

[0033] FIG. 4 is a screen example showing power data in a smart factory according to an embodiment of the present invention.

[0034] FIG. 5 is a screen example showing production data in a smart factory according to an embodiment of the present invention.

[0035] Figure 6 is a screen example showing linked data using power data and production data according to an embodiment of the present invention.

[0036] FIG. 7 is a screen example diagram illustrating a method for selecting a device that performs control for energy reduction in a smart factory according to an embodiment of the present invention.

[0037] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The detailed description set forth below, together with the accompanying drawings, is intended to explain exemplary embodiments of the present invention and is not intended to represent the only embodiments in which the present invention may be practiced. In the drawings, portions irrelevant to the description may be omitted for clarity in describing the present invention, and the same reference numerals may be used throughout the specification for identical or similar components.

[0038]

[0039] Figure 1 is a block diagram illustrating the main components of an electronic device controlling a smart factory according to an embodiment of the present invention. The electronic device (100) monitors and controls all processes included in the smart factory and can communicate with multiple control devices (not shown) that directly manage and control each process. Furthermore, the control device may be a PLC.

[0040] Referring to FIG. 1, an electronic device (100) according to the present invention may include a communication unit (110), an input unit (120), a display unit (130), a memory (140), and a control unit (150).

[0041] The communication unit (110) receives power data and production data for each process from a control device through communication with multiple control devices that directly manage and control all processes included in the smart factory. To this end, the communication unit (110) communicates with the control device via 5G (5 th It can perform communications such as LTE-A (long term evolution advanced), LTE, and Wi-Fi (wireless fidelity).

[0042] The input unit (120) generates input data in response to an administrator input of the electronic device (100). To this end, the input unit (120) may include at least one input means among a keyboard, a mouse, a keypad, a dome switch, a touch panel, a touch key, and a button.

[0043] The display unit (130) outputs output data according to the operation of the electronic device (100). To this end, the display unit (130) may include a liquid crystal display (LCD), a light emitting diode (LED) display, an organic light emitting diode (OLED) display, a micro electro mechanical systems (MEMS) display, and an electronic paper display. The display unit (130) may be implemented as a touch screen by being combined with the input unit (120).

[0044] The memory (140) stores the operating programs of the electronic device (100). The memory (140) can store an algorithm for generating linked data based on power data and production data. The memory (140) can store a control algorithm for controlling the operations of multiple processes included in a smart factory.

[0045] The control unit (150) checks power data and production data for each process included in the smart factory to generate linked data, and checks the power consumption for each process based on the generated linked data. The control unit (150) selects at least one process based on the power consumption for each process, and checks the power consumption when not in operation for a plurality of pieces of equipment included in the selected selected process. The control unit (150) controls the operation of at least one piece of equipment selected from among the plurality of pieces of equipment based on the checked power consumption when not in operation. To this end, the control unit (150) may include a data generation unit (151), a selection unit (152), and a signal generation unit (153).

[0046] The data generation unit (151) verifies power data for each process included in the smart factory. To this end, the data generation unit (151) collects power usage data for each process received from a control device that manages and controls each process. In addition, the data generation unit (151) can verify and display on the display unit (130) the power usage for each process on a given date, the power usage for the past month based on the given date, and the power usage and power factor for the past year based on the given date.

[0047] The data generation unit (151) verifies production data for each process. To this end, the data generation unit (151) receives and collates production data for each process from a control device that manages and controls the process.

[0048] The data generation unit (151) generates linked data based on power data and production data. To this end, the data generation unit (151) can generate linked data such as a graph comparing production performance confirmed based on production data with power usage included in the power data, a graph showing daily power data according to equipment operation types such as equipment operation, delay time, and standby time, and a graph showing daily power usage and rated power usage.

[0049] The selection unit (152) checks the power consumption by process and selects the process with the highest power consumption in the smart factory based on the confirmed power consumption ratio. For example, in an embodiment of the present invention, the Gap automatic welding process may be selected as the selected process among processes such as the overcurrent test process, the nameplate attachment process, the N-phase assembly process, and the Gap automatic welding process. In addition, the selection unit (152) may select at least one process in the order of the highest power consumption in the smart factory as the selected process, and may select at least one process among the Gap automatic welding process among processes including the overcurrent test process, the nameplate attachment process, the N-phase assembly process, and the Gap automatic welding process as the selected process according to an input from the input unit (120).

[0050] The selection unit (152) checks the power consumption when at least one piece of equipment included in the selected selection process is not in operation. At this time, the power consumption when not in operation may refer to the power consumption when the operation type of the equipment is in a delay state or a standby state. The selection unit (152) selects the equipment with the highest power consumption when not in operation as the selected equipment among at least one piece of equipment included in the selection process. For example, a gap automatic welding process may include multiple pieces of equipment for welding, and the control unit (150) may select a cooler, which is the equipment with the highest power consumption when not in operation, as the selected equipment. In addition, the selection unit (152) may select at least one piece of equipment with the highest power consumption when not in operation as the selected equipment among the multiple pieces of equipment included in the selection process, and may select at least one piece of equipment as the selected equipment according to an input from the input unit (120).

[0051] In this way, the selection unit (152) can select a process with the highest power consumption among multiple processes included in the smart factory, for example, a gap automatic welding process, as the selection process, and can select a cooler with the highest power consumption when not in operation among at least one piece of equipment included in the selection process as the selection equipment.

[0052] The signal generation unit (153) receives data generated in the selection process from a control device that manages and controls the selection process, analyzes the data, and monitors the operation of the selection process.

[0053] The signal generation unit (153) checks whether the operation of the selection process converges to the operation stop condition based on the monitoring result of the selection process. If the operation of the selection process converges to the operation stop condition, the selection unit (152) generates a control signal capable of deactivating the operation of the selection equipment and transmits the signal to the control device corresponding to the selection process. At this time, the operation stop condition may be that data related to the movement of the selection process, i.e., the movement signal, is maintained in a state of 0 for a critical time, e.g., 3 minutes or more.

[0054] For example, the motion stop condition can be confirmed by converging to the motion stop condition when the movement signal is confirmed to be 0 for a critical period of time based on regularly set times such as lunch time and quitting time. In addition, the motion stop condition can be confirmed by converging to the motion stop condition when an error occurs in the first equipment that operates prior to the selection equipment among the equipment included in the selection process and the movement signal from the first equipment is confirmed to be 0 for a critical period of time. In this case, disabling the operation of the selection equipment may mean cutting off the power provided to the selection equipment.

[0055] The signal generation unit (153) monitors the status of the selection process. For example, since the selection process is a gap automatic melting process, the signal generation unit (153) can continuously monitor the heat generated during the selection process. For example, the signal generation unit (153) can continuously monitor the temperature around the welding equipment included in the selection process to prevent overheating of the welding equipment.

[0056] The signal generation unit (153) determines whether the selection equipment needs to be activated. For example, the signal generation unit (153) can determine whether the cooler needs to be activated to cool the heat, since even when the selection process is stopped, the heat generated by the previously performed welding may not be completely cooled and may continue to affect the selection process.

[0057] The signal generation unit (153) generates a control signal capable of activating the selection device for a critical period of time and transmits the control signal to a control device related to the selection process. Through this, the signal generation unit (153) can cool the heat generated in the welding process. Subsequently, the signal generation unit (153) generates a control signal capable of deactivating the selection device again and transmits the control signal to the control device related to the selection process. In addition, after the selection process is stopped, if the selection process is not continuously affected by a previously performed operation, the activation and re-deactivation of the selection device may not be performed.

[0058] When the start of operation of multiple processes included in a smart factory is confirmed, the signal generation unit (153) confirms the time at which a product is manufactured in a process preceding the selection process and predicts the time at which the product reaches the selection process. The signal generation unit (153) generates a control signal to activate the operation of the selection device before the predicted time arrives and transmits the signal to the control device related to the selection process.

[0059]

[0060] FIG. 2 is a flowchart illustrating a method for selecting a device with the highest power consumption when not in operation in a smart factory according to an embodiment of the present invention.

[0061] Referring to FIG. 2, in step 201, the control unit (150) checks power data for each process included in the smart factory. To this end, the control unit (150) receives and collates power usage for each process from multiple control devices (not shown) that manage and control each process. In addition, the control unit (150) can check and display on the display unit (130) the power usage for each process on a given date, the power usage for the past month based on the given date, and the power usage and power factor for the past year based on the given date. This will be explained using FIG. 4 below.

[0062] In step 203, the control unit (150) verifies production data for each process. To this end, the control unit (150) receives and collates production data for each process from a control device that manages and controls the process. This will be explained using FIG. 5 below.

[0063] In step 205, the control unit (150) generates linked data based on the power data and production data. To this end, the control unit (150) can generate linked data such as a graph comparing the production performance confirmed based on the production data with the power usage included in the power data, a graph showing daily power data according to the equipment's operation type, such as equipment operation, delay, and standby status, and a graph showing daily power usage and rated power usage. This will be explained using Fig. 6 below.

[0064] In step 207, the control unit (150) checks the power consumption by process, and in step 209, the control unit (150) selects the process with the highest power consumption in the smart factory based on the checked power consumption ratio. For example, in an embodiment of the present invention, the Gap automatic welding process may be selected as the selected process among processes including an overcurrent test process, a nameplate attachment process, an N-phase assembly process, and a Gap automatic welding process. In addition, the control unit (150) may select at least one process in the order of the highest power consumption in the smart factory as the selected process, and may select at least one process among the Gap automatic welding process among processes including an overcurrent test process, a nameplate attachment process, an N-phase assembly process, and a Gap automatic welding process as the selected process according to an input of the input unit (120).

[0065] In step 211, the control unit (150) checks the power consumption when at least one piece of equipment included in the selection process is not in operation. At this time, the power consumption when not in operation may refer to the power consumption when the operation type of the equipment is in a delay state or a standby state. In step 213, the control unit (150) selects the equipment with the highest power consumption when not in operation as the selected equipment among at least one piece of equipment included in the selection process. For example, the gap automatic welding process may include multiple pieces of equipment for welding, and the control unit (150) may select a cooler, which is the equipment with the highest power consumption when not in operation, as the selected equipment among the multiple pieces of equipment. This will be described using FIG. 7 below. In addition, the control unit (150) may select at least one piece of equipment included in the selection process in the order of the highest power consumption when not in operation as the selected equipment, and may select at least one piece of equipment as the selected equipment according to an input from the input unit (120).

[0066] In this way, the control unit (150) can select the process with the highest power consumption among the multiple processes included in the smart factory, for example, the Gap automatic welding process, as the selected process, and select the cooler with the highest power consumption when not in operation among at least one piece of equipment included in the selected process as the selected equipment. The control unit (150) can realize energy savings in the smart factory by controlling the operation of the selected equipment. Such operation control of the selected equipment will be described in more detail using FIG. 3 below.

[0067]

[0068] FIG. 3 is a flowchart illustrating a method for controlling a device that consumes the most power when not in operation to reduce energy according to an embodiment of the present invention.

[0069] Referring to FIG. 3, in step 301, the control unit (150) analyzes data generated from the selection process selected in step 209 of FIG. 2 to monitor the operation of the selection process. To this end, the control unit (150) can receive data generated from the selection process from a control device (not shown) that manages and controls the selection process.

[0070] In step 303, the control unit (150) checks whether the operation of the selection process converges to the operation stop condition as a result of monitoring the selection process. If the operation of the selection process converges to the operation stop condition as a result of checking in step 303, the control unit (150) performs step 305, and if it does not converge to the operation stop condition, the control unit (150) may return to step 301. At this time, the operation stop condition may be that data related to the movement of the selection process, i.e., the movement signal, is maintained in a state of 0 for a critical time, e.g., 3 minutes or more.

[0071] For example, the motion stop condition can be confirmed by converging to the motion stop condition when the movement signal is confirmed to be 0 for a critical period of time based on regularly set times such as lunch time and end of work time. In addition, the motion stop condition can be confirmed by converging to the motion stop condition when an error occurs in the first equipment that operates prior to the selection equipment among the equipment included in the selection process and the movement signal from the first equipment is confirmed to be 0 for a critical period of time.

[0072] In step 305, the control unit (150) deactivates the operation of the optional equipment selected in step 213. At this time, deactivation may mean a state in which power supplied to the optional equipment is cut off.

[0073] In step 307, the control unit (150) monitors the status of the selection process. For example, since the selection process selected in step 207 is a gap automatic melting process, the control unit (150) can continuously monitor the heat generated in the selection process. For example, the control unit (150) can continuously monitor the temperature around the welding equipment included in the selection process to prevent overheating of the welding equipment.

[0074] In step 309, the control unit (150) determines whether the selection equipment needs to be activated. For example, the control unit (150) can determine whether the cooler needs to be activated to cool the heat, since even if the selection process is stopped, the heat generated by the previously performed welding may not be completely cooled and may continue to affect the selection process.

[0075] In step 311, the control unit (150) activates the selection device for a critical period of time. Through this, the control unit (150) cools the heat generated during the welding process and performs step 313. In step 313, the control unit (150) deactivates the selection device again. In addition, after the selection process is stopped, if the previously performed operation does not have a continuous effect on the selection process, the operations in steps 307 to 313 may not be performed.

[0076] In step 315, if the control unit (150) confirms that multiple processes included in the smart factory have started operating, the control unit (150) performs step 317. If the start of operation is not confirmed, the control unit (150) continuously confirms the start of operation. In step 317, the control unit (150) confirms the time at which a product is manufactured in a process preceding the selection process and predicts the time at which the product reaches the selection process. In step 319, the control unit (150) activates the operation of the selection device before the predicted time arrives.

[0077] In this way, the present invention has the effect of minimizing power consumption during downtime by selectively disabling only the equipment with the highest power consumption during downtime when the smart factory does not need to be operated, such as during lunchtime, or when an error occurs in one of the processes included in the smart factory and the smart factory's operation is temporarily halted. In addition, depending on the type of equipment, when it is necessary to operate the equipment from a disabled state, the present invention has the effect of minimizing damage to the process by temporarily activating the equipment only in such cases.

[0078] In addition, in the embodiment of the present invention, although FIG. 2 and FIG. 3 are described as operating separately, this is only for convenience of explanation, and it is to be clarified that FIG. 2 and FIG. 3 may be performed sequentially.

[0079]

[0080] FIG. 4 is a screen example showing power data in a smart factory according to an embodiment of the present invention.

[0081] Referring to FIG. 4, the control unit (150) displays power data for each process included in the smart factory on the display unit (130) in the form of an MES (manufacturing execution system) dashboard. More specifically, the control unit (150) can display a graph for power usage on a given date using different forms for each process, as in FIG. 4a, a graph for power usage for the past month based on the given date, as in FIG. 4b, and a graph for power usage for the past year based on the given date, as in FIG. 4c, on the display unit (130). In addition, the control unit (150) can display a graph for power factor on a given date using different forms for each process, as in FIG. 4d, a graph for power factor for the past month based on the given date, as in FIG. 4e, and a graph for power factor for the past year based on the given date, as in FIG. 4f, on the display unit (130). At this time, the control unit (150) can simultaneously display the graphs of FIGS. 4a to 4f on one screen. This is an operation corresponding to step 201 of FIG. 2.

[0082] In addition, when a specific line is selected from the graph displayed by the input unit (120), the control unit (150) can display the power usage and power factor in the process corresponding to the selected specific line in more detail.

[0083]

[0084] FIG. 5 is a screen example showing production data in a smart factory according to an embodiment of the present invention.

[0085] Referring to FIG. 5, the control unit (150) displays process-specific production data (SMI; smart manufacturing insight) for all processes included in the smart factory on the display unit (130). FIG. 5 shows production data for one of the processes included in the smart factory. In this way, the control unit (150) can check the hourly operating rate, performance operating rate, good product operating rate, OLE, and OEE world class of the corresponding process in 30-minute units and display them in a graph (501), and can check the performance loss, unscheduled downtime, planned downtime, nonconformance loss, production time, down-time (standby), and delay time of the corresponding process in 30-minute units and display them in a graph (503).

[0086] In addition, the control unit (150) can display a table (505) that quantifies overlapping work time, average T / T, production operation rate, production capacity, production plan, production performance, and production performance (non-operation) and a graph (505) that checks production performance, production performance (non-operation), and production capacity in 30-minute units based on the production operation rate. This is an operation corresponding to step 203 of FIG. 2. In addition, when a specific line is selected from among the graphs displayed by the input unit (120) while power data is displayed on the display unit (130) as in FIG. 4, the control unit (150) can display production data in the process corresponding to the selected specific line as in FIG. 5.

[0087]

[0088] Figure 6 is a screen example showing linked data using power data and production data according to an embodiment of the present invention.

[0089] Referring to FIG. 6, the control unit (150) can generate linked data based on the power data and production data shown in FIGS. 4 and 5, and display the linked data for each process among the processes included in the smart factory on the display unit (130). More specifically, the control unit (150) can display a graph (601) of production performance and power consumption for one process, a graph (603) showing daily power data type classification for one process, and a graph (605) showing power consumption by rating.

[0090] At this time, the production performance and power consumption graph (601) can display the production performance of the corresponding process and the power consumption or power consumption ratio when the process is in operation / non-operation by date, and the graph (603) indicating the daily power data type classification can display the power consumption of the corresponding process in the operation, delay, and standby states by date. At this time, the delay state and standby state may mean a non-operation state in which power is supplied but the corresponding process is not in operation. In addition, the graph (605) indicating the power consumption by rating can display the power consumption ratio by type of product produced in the corresponding process by date. This is an operation corresponding to step 205 of FIG. 2.

[0091]

[0092] FIG. 7 is a screen example diagram illustrating a method for selecting a device that performs control for energy reduction in a smart factory according to an embodiment of the present invention.

[0093] Referring to FIG. 7, the control unit (150) generates a graph (701) for the power consumption ratio for each process included in the smart factory and displays it on the display unit (130). Based on this, the control unit (150) can confirm that the power consumption for the entire process is 81.3 kWh, the power consumption for the Gap automatic welding process is 42.86 kWh, and the power consumption for other processes is 38.44 kWh, so that the power consumption ratio of the Gap automatic welding process and other processes is 53:47. Therefore, the control unit (150) can select the Gap automatic welding process as the selected process. In addition, in the embodiment of the present invention, for the convenience of explanation, the power consumption ratio of the Gap automatic welding process and other processes excluding the Gap automatic welding process is described as an example, but the present invention is not necessarily limited thereto. That is, the control unit (150) can check the power consumption for each process included in the smart factory and generate a graph for the power consumption ratio for each process.

[0094] The control unit (150) generates a bar graph (703) of the power consumption for each process included in the smart factory, for example, the overcurrent test process, the nameplate attachment process, the N-phase assembly process, and the Gap automatic welding process, and displays it on the display unit (130). At this time, if the selected process is the Gap automatic welding process, the control unit (150) can check the power consumption in the operation, delay, and standby states, classify them by color, and display them on the bar graph (703). Through this, the control unit (150) can check that the power consumption of the selected process is 26.680 kWh during operation, that the power consumption of the selected process is 9.24 kWh during delay, and that the power consumption of the selected process is 6.94 kWh during standby. In addition, if the selected process is the overcurrent test process, the control unit (150) can check the power consumption of the operation, delay, and standby states for the corresponding process, classify them by color, and display them on the bar graph.

[0095] In addition, when multiple processes are selected as optional processes among the processes included in the smart factory, the control unit (150) can check the power consumption in the operation, delay, and standby states for each of the multiple selected processes and generate a bar graph.

[0096] When the power consumption in the operating, delay, and standby states is confirmed as shown in the drawing reference numeral 703, the control unit (150) can generate a graph (705) for confirming the power consumption of each piece of equipment included in the selection process in the delay and standby states and display the graph on the display unit (130). Through this, the control unit (150) can confirm that, among the equipment included in the Gap automatic welding process, which is the selection process, the power consumption of the cooler when it is in the delay and standby states, that is, when it is not in operation, is 60%, and the power consumption of the other equipment except the cooler when it is not in operation is 40%. In this way, since the power consumption of the cooler when it is not in operation is greater than the power consumption of the other equipment, the control unit (150) can select the cooler as the selected equipment. This is an operation corresponding to steps 207 to 213 of FIG. 2.

[0097] In addition, in the embodiment of the present invention, for the convenience of explanation, when generating a graph (705) to check the power consumption by equipment, a graph was generated by dividing the cooler and equipment other than the cooler, but it is not necessarily limited to this. That is, the control unit (150) can check the power consumption when all equipment included in the Gap automatic welding process is in a non-operational state and generate a graph showing the power consumption by equipment when in a non-operational state.

[0098]

[0099] The embodiments of the present invention disclosed in this specification and drawings are merely specific examples intended to facilitate understanding and easily explain the technical content of the present invention, and are not intended to limit the scope of the present invention. Therefore, the scope of the present invention should be interpreted to include all modifications or variations derived based on the technical concept of the present invention, in addition to the embodiments disclosed herein.

Claims

1. A step in which an electronic device checks the power consumption for each process based on power data and production data for each process related to a smart factory; A step in which the electronic device selects at least one process based on the power consumption for each process; A step of checking the power consumption of a plurality of equipment included in the selected selection process when the electronic device is not in operation; and A step in which the electronic device controls the operation of at least one selected device among the plurality of devices based on the power consumption during the non-operation; A smart factory control method characterized by including:

2. In paragraph 1, The step of checking the power consumption during the above non-operation is: A smart factory control method characterized in that the electronic device is a step of checking the power consumption of the non-operation time including the standby time and delay time for the plurality of equipment.

3. In paragraph 2, The step of controlling the operation of the above optional equipment is: A step in which the electronic device monitors the operation of the selection process; and A step of deactivating the operation of the selection equipment when the operation of the selection process converges to an operation stop condition; A smart factory control method characterized by including:

4. In paragraph 3, After the step of disabling the operation of the above optional equipment, A step in which the electronic device monitors the operation of other equipment included in the selection process; A step of the electronic device activating the operation of the optional equipment if the activation of the optional equipment is required based on the monitoring result; and A step of the electronic device re-disabling the operation of the optional equipment after a critical time has elapsed; A smart factory control method characterized by further including:

5. In paragraph 4, A step of checking the time at which a product being produced in a preceding process of the selection process reaches the selection process when the electronic device converges to the operation start condition of the selection process; and A step of the electronic device activating the operation of the selection equipment based on the confirmed time; A smart factory control method characterized by further including:

6. In paragraph 3, The above operation stop condition is, A smart factory control method characterized in that the condition is that the movement signal for the above selection process is maintained at 0 for a critical time or longer.

7. In paragraph 5, The above operation start conditions are: A smart factory control method characterized in that at least one preceding process of the above selection process is a condition for operation.

8. In paragraph 2, A step in which the electronic device generates and displays the power data and the production data in the form of at least one of a graph and a table; A smart factory control method characterized by further including:

9. In paragraph 1, The step of selecting at least one process is: A smart factory control method characterized in that the step of selecting the process with the highest power consumption per process is the selected process.

10. In paragraph 1, After the step of checking the power consumption during non-operation of the above multiple equipment, A step of selecting the equipment with the highest power consumption during non-operation as the selected equipment; A smart factory control method characterized by further including:

11. Memory containing at least one instruction; and A control unit that executes at least one command stored in the memory, The above control unit, A smart factory control device characterized in that it selects at least one process based on power consumption for each process confirmed based on power data and production data for each process related to a smart factory, and controls the operation of at least one selected device selected from among the plurality of devices by checking the power consumption during non-operation of a plurality of devices included in the selected selected process.

12. In paragraph 11, The above control unit, A smart factory control device characterized in that it checks the power consumption during non-operation time including standby time and delay time for the above-mentioned plurality of equipment.

13. In paragraph 12, The above control unit, A smart factory control device characterized in that it monitors the operation of the above selection process and generates a control signal to deactivate the operation of the above selection equipment when the operation of the above selection process converges to an operation stop condition.

14. In paragraph 13, The above control unit, A smart factory control device characterized in that it monitors the operation of other equipment included in the above selection process, activates the operation of the above selection equipment when activation of the above selection equipment is required, and deactivates the operation of the above selection equipment again after a threshold time has elapsed.

15. In paragraph 14, The above control unit, A smart factory control device characterized in that, when the above selection process converges to the operation start condition, the time at which a product being produced in a preceding process of the above selection process reaches the above selection process is confirmed and the operation of the above selection equipment is activated based on the confirmed time.

16. In paragraph 13, The above operation stop condition is, A smart factory control device characterized in that the condition is that the movement signal for the above selection process is maintained at 0 for a critical time or longer.

17. In paragraph 15, The above operation start conditions are: A smart factory control device characterized in that at least one preceding process of the above selection process is a condition for operation.

18. In paragraph 12, A display unit that displays the power data and the production data in the form of at least one of a graph and a table; A smart factory control device characterized by further including:

19. In paragraph 11, The above control unit, A smart factory control device characterized in that the process with the highest power consumption per process is selected as the selected process.

20. In paragraph 11, The above control unit, A smart factory control device characterized in that the equipment with the highest power consumption during non-operation is selected as the selected equipment.

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