KR102352606B1 - Monitoring system for equipment operation status - Google Patents

Abstract

The present invention provides a system which can monitor the operation of facilities for various manufacturing and transport, etc. The system includes: a sensor unit disposed in individual facilities; a local transceiving unit receiving and transmitting a detection signal from one or more sensor units; and a collection and inspection unit collecting and converting detection signals from one or more local transceiving units into data and distinguishing state information. The collection and inspection unit converts the detection signals collected for the facility having an individual identifier into data at a set time interval, and distinguishes a standby state, a planned stop state, an operation state, and an alarm state to display the same to a terminal unit.

Description

Equipment status monitoring system {MONITORING SYSTEM FOR EQUIPMENT OPERATION STATUS}

The present invention is a system that can monitor the operation of facilities for various manufacturing and transport, and more specifically, it can continuously check the status of facilities operated in factories, etc., check various conditions in real time, and select the operation history. It is related to the monitoring system of the equipment condition to confirm.

In general, in order for factory equipment to operate without failure, it is necessary to continuously check the state of the equipment to predict an alarm according to the severity of the abnormality. It was necessary to perform diagnostics to optimize facility utilization and product quality. However, conventionally, equipment inspection in a production line or factory, measures for failure occurrence, and cause analysis were estimated based on the experience of field workers, such as installing general measuring instruments at the expected location of failure, waste of time and inaccurate judgment There was a possibility of side effects.

As an example, data on motor control signals in a production line must be accurately stored and analyzed as historical data for a certain period of time in a large amount of high-density data at the moment of an accident to find the cause of the failure. The furnace became possible only when data collection equipment was installed in the facility in the event of an accident. In addition, after a failure occurs, it can be installed in the relevant facility and the failure can be confirmed only when the failure occurs again. , it was possible to analyze the causes of failure by paper data.

In recent years, in order to manage the facilities of an automated factory and to solve the above problems, technologies for monitoring and controlling by communicating with each facility have been applied. Usually, it is operated in a client/server environment, for example, MAINTelligence's open architecture is applied to connect and monitor a plurality of client PCs and a network dedicated to the production line.

Korean Patent Application Laid-Open No. 10-2019-0077898 discloses a prior art management target facility abnormal condition monitoring system, and FIG. 1 is a configuration diagram thereof.

Looking at this in general, the management target facility abnormal condition monitoring system 1 is installed in a predetermined space of at least one management target facility 2 , and at least one sensor for detecting status information of each management target facility 2 . (10), the server 20 that receives the sensing data of the corresponding managed facility 2 sensed from the sensor 10 and analyzes it to detect an abnormal state, and the detection of the abnormal state from the server 20 It consists of a display unit 30 that receives a result and displays the content related to the detection result as image information, and transmits the sensing data of each managed facility detected from the plurality of sensors 10 to a network or wireless network. It is configured to further include a gateway 60 for transmitting to the server through a communication network.

However, the above-described facility monitoring is actually applied from the design time because networking, preferably wired or wireless networking to which IoT equipment is applied, and a server for predetermined data processing must be centrally managed within a predetermined unit area of the factory. It should work smoothly.

However, in light of the long-term use of conventional lathes and equipment, the monitoring system described above is difficult to install and operate smoothly in an environment where there are many conventional equipment and equipment. It has limitations in star verification and real-time monitoring operation.

The present invention has been devised to overcome the problems of the prior art, and it can be easily installed in environments such as manufacturing sites, production lines, assembly lines, and transportation facilities to which various facilities are applied, as well as smoothly in patent conventional and mechanical environments. The purpose of the present invention is to provide a monitoring system for equipment status that can monitor real-time status.

The present invention for solving the above problems, a sensor unit 1010 disposed in a facility, a local transmitter/receiver 1500 for receiving and transmitting a detection signal from one or more sensor units, and a communication unit 1110 for collecting a detection signal for the facility ), a state management unit 1400 that distinguishes dataized state information for individual equipment and transmits state information for each equipment or area in time series to the management server, and integrity to verify the transmission of dataized information to the management server A monitoring system of equipment status comprising a collection and inspection unit 1000 having an inspection unit 1220 , and a terminal unit 5000 having a display to receive and display status information from the collection and inspection unit provides
The state management unit converts the detection signals collected for the facility into data at set time intervals and distinguishes the state information, but as a first state, a standby state (0), as a second state, a planned stop state (1), and a third state It is preferable to distinguish and define the operating state (2) and the alarm state (-1) as the fourth state.

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Accordingly, the state distinguished in the state management unit is selected in the order of the fourth state, the first state, the second state, and the third state on the vertical axis, displayed at a set time interval along the horizontal axis, which is the time axis, and visualized as a graph by time series connection. to be displayed so that the state of the equipment can be analyzed through overlapping and contrast with the preset implementation pattern, so that the establishment of a plan for a plurality of equipment lines can be made.

The sensor unit and the local transceiver may transmit a detection signal through power line communication.

In addition, in the terminal unit, the horizontal axis represents time serially, and the vertical axis represents each state. On the vertical axis, the alarm state, the standby state, the planned stop state, and the running state are updated in the order from the bottom to the updated time. The indicated states can be displayed as a connected electrocardiogram graph.

On the other hand, it is preferable that the terminal unit receives a selection of an individual identifier for each facility and a selection of a set time to call the data from the call unit of the collection and inspection unit.

The collection and inspection unit may transmit a test signal to an individual local transmitter/receiver to check integrity and transmit a status to the management server.

According to the present invention, since various types of facilities for production, assembly, management, transport, packaging, storage, etc. can be installed and managed by optimizing for individual areas and purposes, the burden in installation is small, and in particular, In addition to maximizing efficiency in the comprehensive operation of conventional equipment, it has the effect of improving economic efficiency.

In addition, in the present invention, since each state data is efficiently distinguished and accurate information is generated and corrected through visualization of such data, efficiency in equipment operation is dramatically improved, and production costs can be managed, The risk of safety accidents is remarkably reduced, and in the end, effects such as autonomous control of process operation and cost reduction, economical improvement of process energy consumption, maintenance decision support, and accuracy improvement are provided.

1 is a block diagram of a prior art management target facility abnormal condition monitoring system.
2 is a block diagram showing a system for monitoring equipment status according to the present invention.
3 is a block diagram for explaining an embodiment of the collection and inspection unit in the equipment state monitoring system of the present invention.
4 is a diagram illustrating an electrocardiogram UI implemented in a terminal according to a preferred embodiment of the present invention.
5 is a diagram illustrating a table-type status display implemented in a terminal according to a preferred embodiment of the present invention.
6 is a diagram illustrating a DAQ UI capable of controlling and monitoring a collection and inspection unit according to an additional embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail the monitoring system of the equipment state of a preferred embodiment according to the present invention.

However, the embodiments described below are merely for explaining in detail enough that a person of ordinary skill in the art to which the present invention pertains can easily implement the invention, which limits the protection scope of the present invention. doesn't mean

In the following description, when a part is 'connected' to another part, it includes not only a case in which it is directly connected, but also a case in which another element or device is interposed therebetween. In addition, when a part 'includes' a certain component, this means that other components may be further included, rather than excluding other components, unless otherwise stated.

2 is a block diagram showing a system for monitoring equipment status according to the present invention.

The present invention basically includes a sensor unit provided in various facilities for factories and processing, a local transmitter/receiver that transmits a detection signal from the sensor unit, and one or more local transmitter/receivers to collect and form data and state It consists of a collection and inspection unit that calls information.

The equipment described in the present invention operates such as transport equipment of a transport line such as a conveyor, processing equipment in the production process such as CNC or drilling machine, assembly or packaging equipment installed in an assembly line, post-treatment equipment such as a water treatment facility, etc. It is not limited to the embodiment of the present invention, including various types of equipment, equipment, or devices capable of detecting a state and a change in state. In some cases, the facility may be a plant having a complex processing system, and it is understood that the case of a single sensor device is also included.

The sensor unit 1010 installed in each facility and location of the facility senses the operating state of the facility and transmits a detection signal so that the collection and inspection unit 1000 can collect the operating state or abnormal state, basically The basic signal conversion and transmission functions in the local transceiver 1500 installed in each area.

Each sensor unit 1010 may include various types of equipment, equipment, or parts capable of checking the state of the equipment and generating an electrical signal. Basically, since the present invention is a case that can detect the operating state of conventional equipment, a proximity sensor, a contact sensor, an acoustic sensor, or a counting means is preferable as an example of the sensor unit 1010, but the signal of the switchboard built into the equipment itself It should be understood that the operation signal of the switch is also included in the sensor unit 1010 .

The local transceiver 1500 may perform a function of collecting signals sensed from one or more sensor units 1010 and transmitting them to the collection and inspection unit 1000 through a communication network, such a sensor unit 1010 Communication with the power line communication (PLC; Power Line Communication) will preferably be. More preferably, RS485 communication will be applied, but is not necessarily limited thereto.

As an embodiment, the local transceiver 1500 is installed in units of one sensor unit 1010 or one facility or one work area to collect detection signals of a predetermined unit area, and power line communication. A PLC device for , a power supply for controlling the input of external power, a terminal block for terminal connection with the plurality of sensor units 1010 and an overcurrent circuit breaker may be included. A known communication technology may be applied to the connection between the local transceiver 1500 and the sensor unit 1010 and the collection and inspection unit 1000, and in some cases, the sensor unit 1010 or the local transceiver 1500. IP address is assigned to , so that information collection in a predetermined wireless or wired Ethernet environment may be allowed.

A collection and inspection unit 1000 is installed to monitor a predetermined aggregation area from one or more local transceivers 1500, wherein one or more local transceivers 1500 are disposed to have the same zone identifier. means compartment. This collective area may be a series of work units such as a predetermined factory building or operation line.

The collection and inspection unit 1000 performs a function of classifying and quantifying the operating state of the facility having an individual identifier, for example, the state of standby, operation, maintenance, alarm, etc., and specific embodiments related thereto will be described later. do it

One-to-many connection can be made through a hub installed in a factory, etc. in consideration of the connectivity between the plurality of local transceivers 1500 and the collection and inspection unit 1000 that manages one aggregate area. In this regard, a detailed description will be omitted because known techniques may be applied.

The components of the collection and inspection unit 1000 may be implemented as computer-readable codes on a computer-readable recording medium, and the computer-readable recording medium stores data that can be read by a computer system. Includes all types of recording devices. Examples of the computer-readable recording medium include ROM, RAM, CD-ROM, optical data storage device, and flash memory. The equipment status information for each individual identifier collected by the collection and inspection unit 1000 may be converted into data and stored in a predetermined server, and the server is basically a management server remotely connected through the relay unit 3000 ( 2000), but in some cases, a memory built in the collection and inspection unit 1000 or a local service connected to the hub 3100 may be included.

Accordingly, the management server 2000 may be a server, a PC or a microprocessor that is basically connected to one or more local transmission/reception units 1500 to input and transmit a control command, and receive an inspection signal for integrated management, and a control room Including cases where management is performed in a specific building or area, etc. and connected to the master server for integrated processing.

The relay unit 3000 connects a management server 2000 capable of remotely storing, managing, and controlling information of a plurality of collection and inspection units 1000, and a terminal unit 5000 having a predetermined display and input device. ) can be connected to various types of wired and wireless networks. The relay unit 3000 includes a communication method provided by a mobile communication network including CDMA, WCDMA, HSDPA, GSM, Wibro, 3G, 4G, LTE, LTE CatM1, and the like, and Wi-Fi (Wireless Fidelity), Bluetooth (Bluetooth). ), infrared (IrDA: Infrared Data Association), wireless LANN (IEEE 802.11), SWAP (Shared Wireless Access Protocol), WPAN (Wireless Personal Area network), Zigbee, LoRa (Long Range) network, etc. A variety of methods may be applied.

The terminal unit 5000 has a display and an input device and may include various devices capable of transmitting and receiving information to and from the management server 2000 and the collection and inspection unit 1000 through the relay unit 3000, for example. For example, it may be a PC, a smartphone, a tablet PC, a laptop computer, and the like. In the present invention, the operating state of the equipment having individual identifiers can be expressed in time series by visualizing the terminal unit 5000 to improve the user's recognition. Therefore, a preferred embodiment will be described later.

Figure 3 is a block diagram for explaining an embodiment of the collection and inspection unit in the equipment state monitoring system of the present invention.

As described above, each local transceiver 1500 is connected to the collection and inspection unit 1000 directly or through the hub 3100 to transmit status information for each facility having an individual identifier.

Accordingly, basically, the communication unit 1110 receives and collects the detection signal from each local transceiver 1500 through power line communication, converts it into data in the data conversion unit 1210 and converts it into a unit that can be stored and transmitted, and called When predetermined real-time and past data is requested from the unit 1300 , it is called and transmitted to the management server 2000 and/or the terminal unit 5000 .

The communication unit 1110 may be configured to include a common chipset for wireless communication, and well-known elements may be applied to the chipset and antenna. The communication unit 1110 may include a converter, which means a device for converting signals between different protocols. For example, information related to a detection signal received from each local transmission/reception unit 1500 through the 485 communication method is converted into a LoRa protocol signal and transmitted to the management server 2000 through the relay unit 3000. On the contrary, the on/off command signal of the wireless communication protocol transmitted from the management server 2000 is changed according to the 485 protocol to any one or more of a plurality of equipment (eg, actuators or motors, etc.) to which an individual identifier is assigned. to be able to send

The state management unit 1400 may perform a function of distinguishing and managing state information on facilities of each individual identifier dataized by the data conversion unit 1210 . The state management unit 1400 transmits state information for each facility or each area to the management server 2000 so as to enable time-series monitoring at a predetermined time interval, for example, 6 seconds, 10 seconds, 30 seconds, etc. function can be performed, and this set time interval may be individually set according to the characteristics of the equipment or process.

In addition, the state management unit 1400 divides the information on the state of the equipment for each individual identifier dataized in the data conversion unit 1210 to make a data call, and transmits real-time state information or transfers past state information to the terminal unit ( 5000) can be sent. Examples for this will be described later.

On the other hand, the collection and inspection unit 1000 may further include an integrity check unit 1220 , to store predetermined dataized information in the management server 2000 , temporarily store it in the memory in case of failure, and then retransmit and succeed to check whether This retransmission may be performed at a set time interval, and after pinging and testing the connection to the management server 2000, retransmission up to a set number of times (for example, 3 times) and deleting accdb upon success, but must be limited to this it's not going to be For the smooth operation of the integrity check unit 1220, it may be preferable that individual facilities and the local transmission/reception unit 1500 are installed in a 1:1 ratio.

In some cases, the collection and inspection unit 1000 and the management server 2000 installed in a factory unit may be integrally configured, and a case in which elements for each operation are interchanged or added may be considered.

4 is a diagram illustrating an electrocardiogram UI implemented in a terminal according to a preferred embodiment of the present invention.

The collection and inspection unit 1000 is provided with an individual identifier for each facility or each sensor unit 1010 from the local transmission/reception unit 1500 to convert the detection signal into data in the data conversion unit 1210, and each of them in the state management unit 1400 As described above, a function of classifying by state and transmitting to the management server 2000 according to the call of the call unit 1300 can be performed.

The state of each facility can be set in various ways, and there is a need to simplify and organize them in order to manage and visually check them in an integrated way.

Basically, an electrocardiogram means to record a potential appearing in relation to a heartbeat on the body surface as a picture, but in the present invention, the information collected by each sensor unit 1010 is detected in the form of a predetermined potential difference and time-series In the case of schematization by state, it should be defined as an electrocardiogram in the management of facilities because it is similar to this electrocardiogram graph.

In the illustration, the ECG UI 5100 is shown, which is being implemented on the display of the terminal unit 5000 .

The horizontal axis of the graph represents Time, and the vertical axis represents State. In the case of the state of the facility, it means the time interval of communication for detection or collection set as described above, and in the illustrated case, there is no detection before time t1, but communication is made from time t1 to collect, and before time t1 The communication between the collection and inspection unit 1000 and the management server 2000 may be viewed as a dormant state. The dormant state may be understood as a state in which there is no transmission of a state detection signal for a predetermined identifier from the local transceiver 1500 .

In the present invention, the standby (Idle, 0) state is defined as the first state, the planned stop (Finish, 1) state is defined as the second state, and the operating (Operate, 2) state is defined as the third state. . In addition, an alarm (-1) state, which is an emergency warning, is added as a fourth state, and the collection and inspection unit 1000 can distinguish a detection signal for each state. In the case of the fourth state, it may be in a state such as emergency stop or reception of an abnormality detection signal during operation. 5000), the notification may be performed through a predetermined notification (voice call, SMS, app message, E-mail).

According to the above definition, on the vertical axis, the fourth state, the first state, the second state, and the third state may be arranged in the order from the bottom. The above sequence may be changed depending on the characteristics or settings of the equipment, but it was confirmed that the above arrangement is the most effective for visual implementation in that operation is made at idling, then planned stop is made, and an alarm is intermittently performed. .

In the illustrated embodiment, it is in the predetermined alarm state (t1), and is switched to the idling state (t3, t4) after the operation state (t2). Thereafter, it is switched from the operating state t5 to the alarm t6 state again. The second state, which is the stop state, may mean, for example, a work preparation or post-work processing state, but this meaning may vary depending on the type of equipment.

It should be noted that the states may be displayed in real time and according to the range of time according to the call of the call unit 1300, which may be implemented in various forms in various environments of the App or the Web. .

Meanwhile, in the ECG UI 5100 , each facility may be selected by the identification unit 4010 indicating the unit of the facility in which each sensor unit 1010 is disposed.

In addition, the present or past time range may be designated in the time display unit 5020 .

Also, the update unit 5030 may perform a predetermined update operation to perform a real-time call.

As described above, when each state is displayed collectively in the form of a graph with time-series connectivity through the electrocardiogram UI 5100, an implementation pattern of specific visualized data is set in advance to determine the degree of abnormality and the degree of efficient operation; The degree of maximization of production can be analyzed through a pattern, which can be easily checked and operated visually. Additionally, it is noted that, when a plurality of predetermined operating system lines are arranged, it is easy to establish an efficient plan for a plurality of lines through overlapping and contrasting of the ECG interface.

That is, the detection signals collected for facilities with individual identifiers are converted into data at set time intervals, and the standby state, the planned stop state, the running state, and the alarm state are distinguished in chronological order, but the state data can be connected in time series. The branch is displayed on the terminal in a graph so that the state of the equipment can be detected and analyzed in a visualized pattern.

5 is a diagram illustrating a table-type status display implemented in a terminal according to a preferred embodiment of the present invention.

The illustrated state shows the table UI 5200, and the case of the electrocardiogram UI 5100 will be referred to.

As described above, the state management unit 1400 assigns an individual identifier to each facility. In the illustrated example, two identifiers are expressed, which may be assigned to numbers or letters.

The time display unit 5020 may display a selected time or real-time time series flow, and the state discrimination unit 5040 expresses the above-described first to fourth states according to the divided values. In this embodiment, a fifth state for an emergency is additionally added. The emergency state may be a state in which emergency power is cut off or emergency measures are required, which may depend on the type and characteristics of the equipment. The displayed information is divided into 0 and 1, for example, an on-off state. The IP display unit 5050 divides each individual identifier into an IP address. In some cases, the IP address may be an identification unit of the collection and inspection unit 1000 or the local transmission/reception unit 1500 .

In addition, it is also possible to enable the update unit 5030 to individually set the update period.

In addition, by adding a facility name or a worker name to the above example, information on the operation and operation of a comprehensive facility may be displayed, and process contents may be concretely expressed.

6 is a diagram illustrating a DAQ UI capable of performing control and monitoring of a collection and inspection unit according to an additional embodiment of the present invention.

The DAQ UI 5300 may be implemented in the display constituting the terminal unit 5000, but in some cases, monitoring and control of operation on the display or management server 2000 side provided in the collection and inspection unit 1000 It is not excluded from performing the

As described above, the communication method of the local transmission/reception unit 1500 and the collection and inspection unit 1000 may be selected, for example, when directly connected to the collection and inspection unit 1000, the RS-485 communication method may be applied. However, it can be set based on the transmission protocol of TCP (Transmission Control Protocol). Accordingly, the communication selection unit 5310 can select a communication method with the terminal equipment. When the TCP method is selected, a local IP is allocated to an individual location or device, and the local setting unit 5320 may set individual connections and names of devices.

In addition, the collection and inspection unit 1000 may be connected to the server and transmit data at predetermined time intervals, and may further include a server transmission unit 5331 for automatic or manual control. For example, if the server save button is input, immediate transmission is possible.

In addition, the state check unit 5341 can distinguish and designate the states for each of the above-described equipment, and the connectivity check unit 5350 can set the number of trials and the time. Regarding the classification of states and the check of connectivity, redundant descriptions will be omitted.

The monitoring system of the equipment state of the present invention described above can be installed by optimizing for each area and purpose for various types of equipment for production, assembly, management, transport, packaging, storage, etc., and can be centrally managed. In this way, the burden is low and, in particular, the efficiency is maximized for the comprehensive operation of conventional equipment, and there is economic feasibility.

In addition, in the present invention, since each state data is efficiently distinguished and accurate information is generated and corrected through visualization of such data, efficiency in equipment operation is dramatically improved, production costs can be managed, and safety accidents are possible. risk can be significantly reduced.

Accordingly, there are effects such as autonomous control of process operation and cost reduction, improvement of production economy for process energy consumption, support for maintenance decision-making and cost reduction, and improvement of accuracy.

In the above, the present invention has been described in detail based on the embodiments and the accompanying drawings. However, the scope of the present invention is not limited by the above embodiments and drawings, and the scope of the present invention will be limited only by the contents described in the following claims.

1000...Collection and inspection unit 1010...Sensor unit
1110...Communication unit 1210...Data conversion unit
1220...Integrity check unit 1300...Call unit
1400...Status management unit 1500...Local transmitter/receiver
2000...management server 3000...relay
3100...Hub 5000...Terminal
5010...Identification part 5020...Time display part
5030...Renewal 5100...ECG UI
5200...Table UI

Claims (5)

a sensor unit 1010 disposed in the facility;
a local transceiver 1500 for receiving and transmitting a detection signal from one or more sensor units;
A communication unit 1110 that collects detection signals for equipment, a state management unit 1400 that distinguishes dataized state information for individual equipment and time-sequentially transmits state information for each equipment or area to the management server, and a management server a collection and check unit 1000 having an integrity check unit 1220 that verifies the transmission of the data-typed information;
and a terminal unit 5000 having a display to receive and display the status information from the collection and inspection unit;
The state management unit,
The detection signal collected for the facility is converted into data at set time intervals and state information is distinguished, but the first state is the standby state (0), the second state is the planned stop state (1), and the third state is the operating state ( 2) and the 4th state are defined by distinguishing the alarm state (-1) state,
The terminal unit,
The state distinguished in the state management unit is selected in the order of the fourth state, the first state, the second state, and the third state on the vertical axis and displayed at a set time interval along the horizontal axis, which is the time axis, and visualized as a graph by connecting time series. Thus, a facility status monitoring system that enables the establishment of a plan for a plurality of facility lines by allowing the condition of the facility to be analyzed through overlapping and contrasting with a preset implementation pattern.
The method of claim 1,
The sensor unit and the local transceiver unit,
A monitoring system for equipment status that transmits a detection signal through power line communication.
The method of claim 1,
The terminal unit,
A facility status monitoring system that receives a selection of an individual identifier for each facility and a selection of a set time, and calls the data from the call unit of the collection and inspection unit.
The method of claim 1,
The integrity check unit,
A facility status monitoring system that transmits test signals to individual local transceivers to check integrity and transmits the status to the management server.
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