KR20230044619A - Smart factory system based on cloud computing - Google Patents

Abstract

The present invention relates to a smart factory system based on cloud computing, which comprises: at least one smart device, which is attached to operational equipment within a factory, converts various sensor protocols into a single unified standard protocol, collects and integrates sensor data from at least one sensor mounted on the operational equipment, and provides integrated sensor data; a cloud server which collects and manages the integrated sensor data transmitted from the smart device through a network, analyzes the integrated sensor data, and provides event information including identification and status information of the operational equipment in case of an abnormal situation; and a user terminal which is connected to the cloud server or the smart device through the network, monitors the integrated sensor data in real-time, and performs a status check function of the relevant operational equipment when receiving the event information. Therefore, in case of an emergency, a user can quickly become aware of the event related to the emergency.

Description

Smart factory system based on cloud computing}

The present invention relates to a smart factory system based on cloud computing capable of monitoring sensor data in real time.

The information described in this section merely provides background information on an embodiment of the present invention and does not constitute prior art.

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 ICT (information and communication technology). can With the development of digital technologies such as artificial intelligence, Internet of Things (IoT), and big data, the manufacturing industry is also maximizing manufacturing efficiency, which is an innovation in manufacturing that incorporates the latest technologies.

Specifically, smart factory is based on applying the latest digital technologies such as artificial intelligence, IoT, big data, cyber-physical system, and embedded operating system to the entire process of product planning, design, production, distribution, and sales.

The components of these smart factories are largely composed of applications, platforms, devices, and networks. The application is a software system at the top of the smart factory solution, and is a technology that runs the manufacturing process on the platform and analyzes and visualizes the collected data. The platform plays a role in delivering the information collected by the devices of the smart factory solution to the application, and is a technology that selects optimized information by analyzing the data collected by the device. Lastly, devices and networks are the hardware systems at the bottom of the smart factory, which means technology that detects data and information about all situations occurring in the factory and transmits them to the upper system.

1 is a diagram illustrating a smart factory system according to an embodiment of the prior art.

As shown in Figure 1, the smart factory system is a form of building a server in a manufacturing company and providing a service, which is a burden on the cost of building its own server in the manufacturing company and hiring IT experts for continuous management of the system. this exists

In addition, in order to further develop and activate these smart factory systems, users should be able to receive various smart factory services such as cloud, Internet of Things, energy saving, smart sensors, CPS, and big data at low cost. However, since the current user must have all the resources such as server, storage, network, and software related to various services to implement the smart factory, there is a problem of high cost in implementing the smart factory, and the learning period is excessive. Therefore, it is difficult for small and medium-sized manufacturing industries to apply ICT technology to industrial sites.

In addition, since the sensor device applied to the smart factory system has a circuit designed to communicate only with the object of a specific facility, in this case, when the object of the control measurement target is added, the sensor device fits the added object. There is a problem that needs to be redesigned and developed.

Republic of Korea Patent Registration No. 10-2094511 (Title of Invention: Cloud-based smart factory production operation management system)

In order to solve the above problems, the present invention is attached to operating equipment such as a small factory, a new factory, or a factory using an existing sensor device according to an embodiment of the present invention so that sensor data of the operating equipment can be monitored in real time. Its purpose is to provide a cloud computing-based smart factory system.

However, the technical problem to be achieved by the present embodiment is not limited to the technical problem as described above, and other technical problems may exist.

As a technical means for achieving the above technical problem, the cloud computing-based smart factory system according to an embodiment of the present invention is attached to operating equipment in the factory and converts heterogeneous sensor protocols into one integrated standard protocol. At least one or more smart devices that convert and provide integrated sensor data after collecting and integrating sensor data from at least one or more sensors mounted on the operating equipment; A cloud server that collects and manages integrated sensor data transmitted from the smart device over a network, analyzes the integrated sensor data, and provides event information including identification information and status information of operating equipment in which an abnormal situation occurs when an abnormal situation occurs; and a user terminal that is connected to a cloud server or a smart device through the network, monitors the integrated sensor data in real time, and performs a function of checking the state of the operating equipment when the event information is received.

According to one aspect of the present invention, the cloud server stores unique identification information for the smart device, sets a data transmission method including a list of sensors preset for each smart device and a transmission period, and the user terminal After performing user authentication upon access, a web page capable of real-time monitoring of sensor data is provided according to the access authority of the user terminal.

According to one aspect of the present invention, the smart device includes a communication unit for performing wireless communication with an external device including the cloud server; A communication interface unit that converts heterogeneous sensor protocols into one integrated standard protocol and provides the same; a sensor unit that is connected through the communication interface unit and includes at least one sensor that detects environmental information including temperature and humidity; a controller equipped with an algorithm for integrating sensor data sensed by the sensor unit to perform a function of providing integrated sensor data and controlling each component in a smart device; and a TFT-LCD that performs a communication setting function for a sensor added or deleted from the sensor unit according to a user's input command and displays data according to the control of the control unit.

According to one aspect of the present invention, the smart device includes a power supply unit for providing driving power; and a drive button unit that performs an operation execution function including an on/off operation of the power supply unit, an operation of the TFT-LCD or sensor unit, and an initialization operation function by a user's manipulation.

According to one aspect of the present invention, the smart device turns on the blowing fan in the operating equipment when environmental information including temperature and humidity among integrated sensor data of the smart device is equal to or greater than a preset first threshold under the control of the control unit. It further includes a relay unit that performs an /off function and stops the operation of the operating equipment when the environment information is greater than or equal to a preset second threshold.

The control unit may include a time synchronization module providing time for time synchronization; a data storage module for storing the sensor data received from the sensor unit together with the time provided from the time synchronization module; a data processing module integrating the sensor data stored in the data storage module into integrated sensor data at a time provided by the time synchronization module and providing the integrated sensor data to the cloud server; and an algorithm execution module that controls each component by executing the loaded algorithm to support the smart factory function.

According to one aspect of the present invention, the standard protocol is a serial communication protocol including RS-232, RS-422, RS-485, and I2C (Inter-Integrated Circuit).

According to the above-described problem solving means of the present invention, the present invention utilizes a smart device capable of converting various sensors, displays, and various heterogeneous sensor protocols into one integrated standard protocol to provide a simple and inexpensive smart factory function. It can be implemented at a cost, and even if you are not a smart factory expert, you can manage a lot of operating equipment in the factory with a small number of manpower, and you can monitor sensor data and emergency through a user terminal using a smart device without introducing expensive hardware or software. When a situation occurs, the user can quickly recognize an emergency event.

1 is a diagram illustrating a smart factory system according to an embodiment of the prior art.
2 is a block diagram illustrating the configuration of a smart factory system based on cloud computing according to an embodiment of the present invention.
3 is an exemplary view illustrating a state in which a cloud computing-based smart factory system according to an embodiment of the present invention is applied to a factory site.
Figure 4 is a block diagram illustrating the configuration of a smart device according to an embodiment of the present invention.
5 is an exemplary diagram illustrating the appearance of a smart device according to an embodiment of the present invention.
6 is a diagram illustrating the configuration of a control unit according to an embodiment of the present invention.
FIG. 7 is a diagram illustrating an operating state for each region of a smart factory system based on cloud computing according to an embodiment of the present invention.
8 is an exemplary view illustrating a monitoring screen of a cloud server according to an embodiment of the present invention.
9 is an exemplary view illustrating a monitoring screen in a user terminal according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail so that those skilled in the art can easily practice the present invention with reference to the accompanying drawings. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein. And in order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

Throughout the specification, when a part is said to be "connected" to another part, this includes not only the case where it is "directly connected" but also the case where it is "electrically connected" with another element interposed therebetween. . In addition, when a part "includes" a certain component, this means that it may further include other components, not excluding other components, unless otherwise stated, and one or more other characteristics. However, it should be understood that it does not preclude the possibility of existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

In this specification, a 'terminal' may be a wireless communication device with guaranteed portability and mobility, and may be, for example, any type of handheld-based wireless communication device such as a smart phone, a tablet PC, or a laptop computer. Also, the 'terminal' may be a wired communication device such as a PC capable of accessing other terminals or servers through a network. In addition, a network refers to a connection structure capable of exchanging information between nodes such as terminals and servers, such as a local area network (LAN), a wide area network (WAN), and the Internet (WWW : World Wide Web), wired and wireless data communications network, telephone network, and wired and wireless television communications network.

Examples of wireless data communication networks include 3G, 4G, 5G, 3rd Generation Partnership Project (3GPP), Long Term Evolution (LTE), World Interoperability for Microwave Access (WIMAX), Wi-Fi, Bluetooth communication, infrared communication, ultrasonic communication, visible light communication (VLC: Visible Light Communication), LiFi, and the like, but are not limited thereto.

The following examples are detailed descriptions for better understanding of the present invention, and do not limit the scope of the present invention. Therefore, inventions of the same scope that perform the same functions as the present invention will also fall within the scope of the present invention.

In addition, each configuration, process, process or method included in each embodiment of the present invention may be shared within a range that does not contradict each other technically.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a block diagram illustrating the configuration of a cloud computing-based smart factory system according to an embodiment of the present invention, Figure 3 is a cloud computing-based smart factory system according to an embodiment of the present invention applied to a factory site It is an example diagram explaining the state.

Referring to FIGS. 2 and 3 , the cloud computing-based smart factory system includes at least one smart device 100, a cloud server 200, and a user terminal 300, but is not limited thereto.

The smart device 100 is for supporting the function of the smart factory, is attached to various operating equipment 10 in the factory, converts heterogeneous sensor protocols into one integrated standard protocol, and provides operating equipment ( 10) After collecting and integrating sensor data from at least one sensor mounted on the sensor, the integrated sensor data is provided to the cloud server 200. Here, the operating equipment 10 may be a vehicle, smart IoT terminal, unit equipment or facility, automation device, refrigeration facility, etc. operated on a smart farm or factory site.

The cloud server 200 collects and manages integrated sensor data transmitted from the smart device 100 over the network, analyzes the integrated sensor data, and identifies identification information and status information of the operating equipment 10 in which the abnormal situation occurs when an abnormal situation occurs. Event information including is provided to the user terminal 300 . This cloud server 200 connects not only sensor data such as temperature and humidity, but also aggregate data by sensors to a production management system, quality management system, facility management system, energy management and safety management system, and logistics management system to create a smart factory It can be used as data for

The cloud server 200 stores identification information such as an ID for the smart device 100, an installation location, and attached operation equipment information, and sets a data transmission method including a list of sensors preset for each smart device and a transmission cycle, It is provided to the user terminal 300 .

The cloud server 200 may be a computer body for a server in a general sense, and may be implemented in various types of devices capable of performing a server role. Specifically, the cloud server 200 may be implemented in a computing device including a communication module (not shown), a memory (not shown), a processor (not shown), and a database (not shown), such as a smart phone, a TV, or a PDA. , Tablet PC, PC, notebook PC and other user terminal devices may be implemented.

The user terminal 300 communicates with the cloud server 200 or the smart device 100 through a network to monitor integrated sensor data in real time, and performs a function of checking the state of the operating equipment when event information is received. The user terminal 300 receives and executes an application for the smart factory function provided by the cloud server 200, and the user (or manager) can easily connect to the smart device 100 through a 1:N connection through the application. Allows sensor data to be monitored.

Figure 4 is a block diagram illustrating the configuration of a smart device according to an embodiment of the present invention, Figure 5 is an exemplary view explaining the appearance of a smart device according to an embodiment of the present invention, Figure 6 is a view of the present invention It is a diagram explaining the configuration of a control unit according to an embodiment.

4 to 6, the smart device 100 is a device equipped with various sensor functions, display functions, and communication functions, and includes a communication unit 110, a communication interface unit 120, a sensor unit 130, and a control unit ( 140), a TFT-LCD (display unit) 150, a power supply unit 160, a driving button unit 170 and a relay unit 180, but are not limited thereto.

The communication unit 110 performs wireless communication with an external device including the cloud server 200, and provides a communication interface necessary to provide a transmission/reception signal between the cloud server 200 or the user terminal 300 in the form of packet data. do. Here, the communication unit 110 may be a device including hardware and software necessary for transmitting and receiving signals such as control signals or data signals with other network devices through wired or wireless connections.

The communication interface unit 120 converts heterogeneous sensor protocols into one unified standard protocol, and includes a plurality of connectors for connecting sensors. In this case, the standard protocol may be a serial communication protocol including RS-232, RS-422, RS-485, and Inter-Integrated Circuit (I2C). In particular, the RS-485 communication protocol is a communication widely used in industrial equipment and can communicate with the control unit 140 to transmit and receive data. The I2C communication protocol is a serial communication protocol that can be used simply through pre-determined commands for data such as industrial equipment or sensors added from the outside.

The sensor unit 130 includes at least one sensor that is connected through the communication interface unit 120 and detects environmental information including temperature and humidity. The sensor unit 130 may include, but is not limited to, a temperature sensor (PT-100, K-type temperature sensor, etc.), a temperature and humidity sensor (SHT 10, etc.), etc., and a vibration sensor, an optical sensor, a current sensor, and a proximity sensor. , a position sensor, and the like may be further included.

The control unit 140 performs a function of providing integrated sensor data by integrating sensor data detected by the sensor unit 130, and is equipped with an algorithm for controlling each component in the smart device 100. The control unit 140 may have a built-in communication unit 110 for a short-range communication module such as Wi-Fi or Bluetooth, and transmit data to the cloud server 200 through a local area network.

Therefore, an access point (AP) 250 is disposed between the smart device 100 and the cloud server 200, and the AP 250 is connected to the smart device 100 through Wi-Fi and via the wireless Internet. It connects to the cloud server 200 and serves as a relay for data transmission.

Conventional integrated sensor devices have the inconvenience of being able to process only sensor protocols programmed in hardware or having to mount sensors by modifying firmware to suit the types of sensors and specifications provided by manufacturers. At this time, when the sensor is installed by modifying the firmware, production management, logistics management, quality management, etc. may be disrupted because a situation may occur in which operation equipment in operation is stopped at the factory site.

However, in the present invention, even if the protocols of the sensors are different, all sensors using standard protocols are connected, and communication settings suitable for the protocols of newly connected sensors can be made in the cloud server. Therefore, the additional power supply unit 160 of the present invention provides driving power necessary for the smart device 100 . At this time, the power supply unit 160 checks the remaining amount of the battery, and when it is below a predetermined threshold, reduces the power consumed by the TFT-LCD 150 or the communication unit 110, and the sensor unit 130 and the control unit 140 require A power save mode can be performed so that only minimal functions are executed.

The driving button unit 170 performs an operation execution function including an on/off operation of the power supply unit 160, an operation for the TFT-LCD 150 or the sensor unit 130, and an initialization operation function by a user's manipulation.

The relay unit 180 may perform an automatic on/off function of operating equipment when an abnormal situation occurs under the control of the control unit 140 . For example, the relay unit 180 performs an on/off function of a blowing fan in operating equipment when environmental information including temperature and humidity among the integrated sensor data is equal to or greater than a preset first threshold, and the environmental information is controlled by a preset threshold value. 2 The operation of the operating equipment 10 may be stopped when the threshold value is greater than or when the accessory replacement cycle is reached.

In addition, the relay unit 180 may turn off a sensor function for a sensor having a failure among the sensors of the sensor unit 130 and turn on the sensor function when a sensor in a normal state is added to a corresponding line.

The case 101 includes a communication unit 110, a communication interface unit 120, a sensor unit 130, a control unit 140, a TFT-LCD 150, a power supply unit 160, a driving button unit 170, and a relay unit ( 180), and is made of a material resistant to temperature, humidity, shock and vibration.

Meanwhile, the smart device 100 may further include LEDs displaying a current state.

Meanwhile, as shown in FIG. 6 , the control unit 140 includes a time synchronization module 141, a data storage module 142, a data processing module 143, and an algorithm execution module 144, but is not limited thereto. .

The time synchronization module 141 provides time for time synchronization, and the data storage module 142 stores the sensor data received from the sensor unit 130 together with the time provided by the time synchronization module 141 .

The data processing module 143 integrates the sensor data stored in the data storage module into integrated sensor data at a time provided by the time synchronization module and provides the integrated sensor data to the cloud server 200 at every predetermined transmission period.

The algorithm execution module 144 controls each component by executing an algorithm to support the smart factory function of the cloud computing-based smart factory system. The algorithm execution module 144 operates an algorithm for driving a sensor connected to the smart device 100, an algorithm for a communication setting function of a sensor through the communication interface unit 120, and a trigger function relay unit 180. It is possible to appropriately execute algorithms for processing, sensor data processing and communication, etc., and each algorithm can be periodically updated. In particular, the algorithm execution module 144 may directly transmit the corresponding sensor data to the cloud server 200 regardless of the transmission period when there is sensor data indicating an abnormal situation among the sensor data.

At this time, the memory (not shown) stores all algorithms for supporting the smart factory function of the cloud computing-based smart factory system and temporarily or permanently stores data processed by the data storage module 142. . Here, the memory may include volatile storage media or non-volatile storage media, but the scope of the present invention is not limited thereto.

The above-described modules are only one embodiment for explaining the present invention, and may be implemented in various modifications without being limited thereto. In addition, at least part of the algorithm may be implemented in software, firmware, hardware, or a combination of at least two of these, and may include a module, program, routine, instruction set, or process for performing one or more functions.

FIG. 7 is a view for explaining regional operating conditions of a cloud computing-based smart factory system according to an embodiment of the present invention, and FIG. 8 is an exemplary view for explaining a monitoring screen of a cloud server according to an embodiment of the present invention. 9 is an exemplary view illustrating a monitoring screen in a user terminal according to an embodiment of the present invention.

Referring to FIGS. 7 to 9 , the cloud server 200 may collect various sensor data within the factory site by region through the smart device 100, and state and environmental information of operating equipment to which the smart device 100 is attached. (temperature, humidity, etc.) can be collected and managed. The cloud server 200 can systematically classify and manage data on factories scattered by region and operation equipment by factory.

At this time, the smart device 100 requests a sensor list from the cloud server 200 through server API communication and transmits integrated sensor data at each transmission period set by the server. Meanwhile, the cloud server 200 provides a sensor list according to the request of the smart device 100 and transmits a data communication method such as a transmission period. In addition, the cloud server 200 sets the relay operating conditions (temperature/humidity threshold, accessory replacement cycle of operating equipment, etc.) to the device 100, and then transmits the relay operating state.

As shown in FIG. 7 , when the user terminal 300 accesses the cloud server 200, after authenticating whether the user terminal 300 is an authorized user, real-time monitoring of sensor data is possible according to the user access authority. Provides web pages for all, limited plant sites, and limited operating equipment within a plant site. Therefore, as shown in FIG. 8 , the user terminal 300 can check whether the smart device 100 installed in the operating equipment 10 operates normally, and can monitor sensor data transmitted from the smart device 100 in real time. This allows you to quickly respond to accidents or dangerous events.

The user terminal 300 can store sensor data through an application for the smart factory function provided by the cloud server 200, output a report using Excel or a graph, and output event information for risk notification. there is.

The embodiments of the present invention described above may be implemented in the form of a recording medium including instructions executable by a computer, such as program modules executed by a computer. Such recording media includes computer readable media, which can be any available media that can be accessed by a computer, and includes both volatile and nonvolatile media, removable and non-removable media. Computer readable media also includes computer storage media, both volatile and nonvolatile, implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. , including both removable and non-removable media.

The above description of the present invention is for illustrative purposes, and those skilled in the art can understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the present invention is indicated by the following claims rather than the detailed description above, and all changes or modifications derived from the meaning and scope of the claims and equivalent concepts should be construed as being included in the scope of the present invention. do.

100: smart device
110: Communication Department
120: communication interface unit
130: sensor unit
140: control unit
150: TFT-LCD
160: power supply
170: driving button part
180: relay unit
200: cloud server
300: user terminal

Claims (3)

In the cloud computing-based smart factory system,
It is attached to the operating equipment in the factory, converts heterogeneous sensor protocols into one integrated standard protocol, and collects and integrates sensor data from at least one sensor installed on the operating equipment, and then collects and integrates the integrated sensor data. At least one or more smart devices that provide;
A cloud server that collects and manages integrated sensor data transmitted from the smart device over a network, analyzes the integrated sensor data, and provides event information including identification information and status information of operating equipment in which an abnormal situation occurs when an abnormal situation occurs; and
A cloud computing-based, including a user terminal connected to a cloud server or smart device through the network, monitoring the integrated sensor data in real time, and performing a status check function of the operating equipment when the event information is received. Smart Factory System. According to claim 1,
The cloud server,
Storing unique identification information for the smart device, setting a data transmission method including a list of sensors preset for each smart device and a transmission period;
After performing user authentication when the user terminal accesses, providing a web page capable of real-time monitoring of sensor data according to the access authority of the user terminal, cloud computing-based smart factory system. According to claim 1,
The smart device,
a communication unit performing wireless communication with an external device including the cloud server;
A communication interface unit that converts heterogeneous sensor protocols into one integrated standard protocol and provides the same;
a sensor unit that is connected through the communication interface unit and includes at least one sensor that detects environmental information including temperature and humidity;
a controller equipped with an algorithm for integrating sensor data sensed by the sensor unit to perform a function of providing integrated sensor data and controlling each component in a smart device; and
A cloud computing-based smart factory system comprising a TFT-LCD that performs a communication setting function for a sensor added or deleted from the sensor unit according to a user's input command and displays data under the control of the control unit. .

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