KR102021431B1 - Instrument control equipment Remote monitoring and control system - Google Patents

Abstract

The present invention relates to a remote control system for instrumentation control equipment. More particularly, the present invention relates to the remote control system configured to provide intelligent monitoring control equipment by obtaining various information by communicating with the instrumentation control equipment with which an operational information server can communicate and provide the operational information server so that a person in charge can quickly identify the cause and take action in the event of a failure of process control equipment.

Description

Instrument control equipment Remote monitoring and control system

The present invention relates to a remote monitoring control system for instrumentation control equipment, and more particularly, to provide an intelligent monitoring control equipment by obtaining various information by communicating with an instrumentation control equipment that an operational information server can communicate with. It is a remote control system of instrumentation control equipment that provides an operation information server so that personnel can quickly identify the cause and take action when it occurs.

The development of science and technology has brought about many changes in today's industrial field.

In particular, remote control of instrumentation enabled industrial automation, and humans no longer had to do dangerous instrumentation on site.

However, there is a lack of immediate human handling in the event of an accident.

As a result, they lack the ability to cope with unexpected events such as fires and leaks.

In order to solve this problem, a remote control system that allows a user to operate a machine or system at a remote location has been studied in various fields.

The development of remote control systems has led to the use of non-human machines for measurement of hazardous areas, which has resulted in cost savings in many industries and, above all, operator safety.

As a result, the value of remote control systems is increasing.

This remote control system has some disadvantages.

First of all, to control the system, a network infrastructure that connects the remote site and the work site is required.

The installation of network infrastructure increases cost and time in proportion to the distance between the remote site and the work site, and increases the difficulty of maintenance and repair after installation.

In addition, most of the work spaces requiring remote control systems are places where human ability, such as moving containers on construction sites, or areas where humans are at risk, such as search of radioactive contaminated areas and mine exploration.

Since these workspaces exist for a limited time, a remote control system that requires the installation of a network infrastructure is inadequate as a way to handle the work in these spaces.

Another disadvantage of the remote control system is that it is difficult to drive the system while on the move. In order to operate the system, the user must reside on a PC with a drive program installed.

As a prior document relating to the present invention, there is 'Patent Document 1'.

Patent document 1 relates to a water and sewage facility remote monitoring control system and method.

Patent document 1 relates to a remote monitoring and control system and method for water and sewage facilities, the system according to the present invention collects information on the water and sewage facilities from the measurement equipment installed in the water and sewage facilities, and analyzed by analyzing the information about the collected water and sewage facilities PLC module for controlling the operation of water supply and sewage facilities by transmitting the result to the central monitoring controller, receiving control signals for controlling the operation of water supply and sewage facilities from the central monitoring control unit, and analyzing the results as a web page screen to the mobile terminal. It includes a plurality of remote monitoring control unit including a providing web server module.

According to the present invention, a web server module is additionally installed in a remote monitoring controller to transmit water and sewage facility information to a central monitoring controller, and at the same time, the water and sewage facility information is quickly transmitted to a portable terminal having a plurality of related personnel. Monitor and control.

In general, plant facilities of water and sewage treatment systems such as water and sewage treatment plants, drainage stations, or relay pumping stations installed in dams, reservoirs, rivers or streams are widely distributed in places inaccessible to people or outside the city. Various mechanical equipment and measuring equipment are installed. In addition, the plant facility is equipped with a remote control station (RCS: Remote Control Station) configured to manipulate the operation of the plant facility, and the remote monitoring control panel (PLC) is installed to monitor and control mechanical equipment and measuring equipment. The water and sewage treatment system is configured to comprehensively monitor and control the situation of the site by transmitting the data to the monitoring control computer of the central control center.

However, the conventional instrumentation processing system is monitored through a supervisory control computer, so it is not easy to check the real-time operating status or alarm of the machine facilities in the field, and it is difficult and limited to confirm the actual situation of the process facilities widely distributed in real time. there was.

In addition, since the monitoring of the state and measured values of the mechanical equipment in the field is performed through the monitoring control computer, there is a problem that it is difficult to quickly respond to the operation of the mechanical equipment and the alarm of the measured values.

In other words, since information on alarms and abnormalities is made through the supervisory control computer, if a delay or mistake occurs during the reporting process to the remote supervisory control panel, there is a problem that the polluted state may be left for a long time because no action is taken in a timely manner. there was.

In addition, all data is concentrated on the supervisory control computer, making it vulnerable to computer and communication device failures, and when important information such as alarms are inadvertently taken carelessly in the process of delivery, There was a problem that could cause loss.

Tele-Metering / Tele-Control (TM / TC), a remote monitoring and control facility, is a facility that enables the central control room to monitor and control remote facilities. It communicates with the central and master facilities. It consists of a communication line that connects the equipment and the equipment. The communication line has a method using a dedicated line (low speed 9.6kbps). It is a small scale remote monitoring and control facility.

As the remote monitoring and control facility is operated unattended because it is located at a long distance, it has a facility in a narrow space, so it is vulnerable to high temperature, high humidity and scattering dust.

As a result, in case of equipment or communication network failure, it is difficult to recover the equipment remotely from the central control room. Most of the maintenance personnel should go to the site to check and repair the equipment.

In addition, some branch points are located at a long distance (more than an hour from the center), so it is difficult for the first responders, and there are many factors that cause problems due to disputes and equipment interruptions in the event of instrument breakdown or valve control.

In addition, as industrialization accelerates, automation facilities are introduced at various industrial sites, and as systems become larger and more complex, the frequency of failures increases and the logic to be checked increases.

As a result, it is possible to create serious risks to operations beyond the scope of existing managers.

Republic of Korea Patent Publication 10-1737524 (May 29, 2017)

Accordingly, the present invention has been made to solve the above conventional problems,

A first object of the present invention is to provide an intelligent monitoring control facility by obtaining a variety of information by communicating with the instrumentation control facility that the operational information server can communicate.

It is a second object of the present invention to provide an operation information server so that a person in charge can quickly identify a cause and take action when a process control equipment failure occurs.

In order to achieve the problem to be solved by the present invention, the instrumentation control equipment remote monitoring control system according to an embodiment of the present invention,

Applicant has repeatedly studied until the present invention in view of the above problems of the prior art, in order to achieve the above object,

Operation information server 100; and

Central monitoring control equipment (200) as equipment for acquiring, storing, and controlling data for monitoring and control of the instrumentation; and

It is installed at a remote place from the center to the remote site, the field monitoring control equipment 300 for collecting equipment status information data such as measuring equipment and processing control commands; and

A program logic control facility 400 for collecting state information data of measuring instruments and valves and processing control commands; and

To provide an instrumentation control facility remote monitoring control system consisting of; a measuring device 500 for measuring various sensor data required for operation.

Instrumentation control equipment remote monitoring control system according to the present invention,

The operation information server communicates with the instrumentation control equipment that can communicate with each other to acquire various information to enable intelligent operation.In addition, the operation information server provides an operation information server to promptly identify the cause and take action in the event of a failure of the process control equipment. It can provide the effect.

1 is an overall configuration diagram of an instrumentation control equipment remote monitoring control system according to an embodiment of the present invention.
2 is a block diagram of the central monitoring control equipment 200 of the instrumentation control equipment remote monitoring control system according to an embodiment of the present invention.
3 is a block diagram of the operation information server 100 of the instrumentation control facility remote monitoring control system according to an embodiment of the present invention.
Figure 4 is a flow chart of the pump A, B, C alternating operation by the operation of the operation management module 140 of the instrumentation control equipment remote monitoring control system according to an embodiment of the present invention.

Instrumentation control equipment remote monitoring control system according to an embodiment of the present invention,

Operation information server 100; and

Central monitoring control equipment (200) as equipment for acquiring, storing, and controlling data for monitoring and control of the instrumentation; and

It is installed at a remote place from the center to the remote site, the field monitoring control equipment 300 for collecting equipment status information data such as measuring equipment and processing control commands; and

A program logic control facility 400 for collecting state information data of measuring instruments and valves and processing control commands; and

Characterized in that consisting of; measuring device 500 for measuring various sensor data required for operation.

At this time, the central monitoring control equipment 200,

SCADA server 210 to perform a comprehensive supervisory control function in the central control room; and

It is installed in the central control room, the central control panel (220, COS), which is a computer for monitoring and control of the operator.

At this time, the operation information server 100,

Characterized in that it comprises an operating information DB server (110, DB server) that is a facility for storing instrumentation operation information.

At this time, the operation information server 100,

Project management module 120 for managing the business information, company information; And

Facility management module 130 for facility information, data management; And

Operation control module 140 for managing the central control and monitoring facilities, on-site monitoring and control facilities; and

Completion management module 150 for managing the completion book, completion drawing information; and

And maintenance management module 160 for managing maintenance history information and action information.

Hereinafter, an embodiment of the instrumentation control equipment remote monitoring control system according to the present invention will be described in detail.

The instrumentation is usually a control technique for automating a process (hereinafter, instrumentation control system) as an instrumentation (measurement) control system and includes measurement, metering, control, installation, design, operation, and the like.

Definitions of terms used in the present invention are as follows.

RCS is a facility that collects equipment status information data and processes control commands, such as measuring equipment at remote control station (RCS) sites.

Programmable Logic Controller A PLC is a device that controls equipment by a pre-programmed control sequence and sends the extracted data to a central center through a local area network.

SCADA collects various status and information located at the remote location of Supervisory Control And Data Acquisition to PLC (Programmable Logic Controller) or Remote Terminal Unit (RTU) It is a system that effectively manages various facilities by transmitting the data to the information management system with the top of the database and analyzing and controlling the trend of the transmitted data value.

RTU is a device installed in the field for remote monitoring. It transmits various information acquired from the site to the central center through a modem. It is used for remote monitoring and control.

COS stands for Central Operation Station and is installed in the central control room.

TM / TC stands for Tele-metering and Tele-control and is a facility that collects status information data such as measuring devices and valves at remote sites and processes control commands.

Conventional remote monitoring facilities consisted of a central monitoring control facility, an on-site monitoring control facility, a remote monitoring control facility (TM / TC), and a measuring device.

In the conventional facilities, the remote monitoring and control equipment (TM / TC) used a general telephone dial-up modem in the early days of the network operation, but the communication time was long, the procedure was complicated, and the communication technology was obsolete. For reliability and real-time acquisition, the circuit has been changed to a dedicated line, and most of them still use the dedicated line.

However, the leased line is charged a lot depending on the distance, so a lot of costs are incurred in long-distance operation such as intercity section.

In addition, it is located at a long distance when a failure occurs, so that recovery is required for a long time, so that self-diagnosis (check) and remote check functions are implemented to promptly recover and operate stable facilities.

Accordingly, the present invention, by providing the intelligent monitoring control equipment by obtaining a variety of information by communicating with the instrumentation control equipment that the operational information server can communicate, it is more intelligent and inexpensive to implement the self-state diagnosis (check) and remote check function quickly It is possible to restore and operate stable facilities, and to operate a separate operation information server to monitor collectively within the range that can be checked by the administrator.

In case of TM disorders, temporary disorders of unknown origin are mostly required to detect the causes of the disorders and to fail in advance, and prompt response and measures are needed.In the case of a lightning strike, it is continuously occurring every year and recovery from surge damage Costs are estimated at several billion won per year, and comprehensive measures are needed to minimize surge damage.

As most of the communication networks use wired networks, they are vulnerable to lightning and have high line costs. Therefore, it is necessary to reduce the cost of communication lines and secure stable operation data by developing the communication network devices in one wireless type.

1 is an overall configuration diagram of an instrumentation control equipment remote monitoring control system according to an embodiment of the present invention.

As shown in FIG. 1, the present inventors control equipment remote monitoring control system,

Operation information server 100;

Central monitoring control equipment (200) as equipment for acquiring, storing, and controlling data for monitoring and control of the instrumentation; and

An on-site monitoring and control facility 300 installed at a remote location from a center and collecting facility status information data such as a measuring device and processing a control command;

A program logic control facility 400 for collecting state information data of a measuring instrument and a valve and processing a control command;

It is characterized in that the configuration, including; measuring device 500 for measuring the various sensor data required for operation.

The operation information server 100 obtains control information and measurement information from the central monitoring control facility 200, the site monitoring control facility 300, the program logic control facility 400, and the measurement device 500, and stores them. Means a comprehensive management server for managing.

For example, it will provide RCS status information and control functions, monitor current status of PLC and contact status, and provide information to client and operation information FEP.

The central monitoring control device 200 is a device for acquiring, storing, and controlling data for monitoring control of the instrumentation, and periodically acquires and stores data of the instrumentation, and is a facility for performing control.

In addition, the site monitoring control facility 300 is installed at a remote location from the center, and collects the equipment status information data, such as a measuring instrument, and processes the control command.

In other words, according to the control command provided by the central monitoring and control facilities, the corresponding equipment state information is collected and provided, and the operation signal is provided to various facilities according to the control.

In addition, the program logic control facility 400 of the present invention is to collect the state information data of the measuring instrument, the valve and to perform the function of processing the control command.

In other words, the program logic control system is a system that allows administrators to quickly solve the cause of a failure in the event of a failure by substituting and analyzing the information acquired from the operation information server into the program logic.

For example, when the measurement information is obtained from the measurement device 500, when the threshold information is exceeded, the facility is controlled according to a preset programmed control sequence.

Therefore, through the program logic control facility, more intelligent and inexpensive, the self-diagnosis (check) and remote check function can be implemented for quick recovery and stable facility operation. It provides synergistic effects that can be monitored in a batch.

As industrialization accelerates, automation facilities are introduced at many industrial sites, and as systems grow in size and complexity, the frequency of failures increases and the logic to check also increases.

As a result, beyond the scope of existing managers, it could pose serious risks to operations.

Accordingly, an object of the present invention is to provide information so that an administrator can quickly and accurately identify the location of an obstacle and take action.

2 is a block diagram of the central monitoring control equipment 200 of the instrumentation control equipment remote monitoring control system according to an embodiment of the present invention.

As shown in Figure 2, the central monitoring control equipment 200,

SCADA server 210 to perform a comprehensive supervisory control function in the central control room; and

It is installed in the central control room, the central control panel (220, COS), which is a computer for monitoring and control of the operating personnel; characterized in that it comprises a configuration.

The SCADA server 210 is to perform a comprehensive monitoring control function in the central coordination room.

In other words, SCADA is a Supervisory Control And Data Acquisition system, which collects various states and information located at a remote location with a programmable logic controller (PLC) or a remote terminal unit (RTU), which is then connected to a network via a network. It is a system that effectively manages various facilities by transmitting the monitoring and control system of the system and the database to the information management system (Information Management System), and analyzing and controlling the trend of the transmitted data value.

Accordingly, by collecting the various state information of the equipment required for the monitoring control from the SCADA server 210 and providing the collected information to the central control panel 220, COS, it is possible to detect and control through the operator working in the central control panel will be.

3 is a block diagram of the operation information server 100 of the instrumentation control facility remote monitoring control system according to an embodiment of the present invention.

As shown in Figure 3, the operation information server 100,

An operation information DB server 110 which is a facility for storing instrumentation operation information;

Project management module 120 for managing the business information, company information; And

Facility management module 130 for facility information, data management; And

Operation control module 140 for managing the central control and monitoring facilities, on-site monitoring and control facilities; and

Completion management module 150 for managing the completion book, completion drawing information; and

And maintenance management module 160 for managing maintenance history information and action information.

By configuring the operation information server as described above, it is possible to store and read a variety of products, and by providing the information for each facility in real time, it is possible to quickly deal with abnormal conditions.

In addition, it provides quick maintenance by indicating the point of failure in case of abnormality by facility and provides real time procedure and progress to the operation process through the intuitive GUI without having to learn how to use various engineering tools. Quickly identify cause analysis and solutions.

In addition, it can operate by referring to the solution for the same symptom and similar symptom by recording information about various errors and failures, and because it monitors the network equipment of the whole system in real time, it is impossible to monitor and control by communication error. Can be found quickly.

In addition, by mounting the touch screen can check the corresponding RCS information in real time to increase the efficiency during maintenance.

The operation information DB server (110, DB server) is to perform the function of storing the instrumentation operation information, for example, in the business information, company information, facility management module 130 provided in the business management module 120 Provided equipment-specific information, data management information, the central control monitoring facility cost provided by the operation management module 140, the site monitoring control equipment management information, the completion book provided by the completion management module 150, completed drawing information, maintenance management module ( Maintenance history information and action information provided in 160 are stored and managed.

The project management module 120 performs a function for managing the information of the business, the company information, the information of the business means the management information for each project of the construction part related to the automatic control equipment, ID to manage the management information for each business And classify and store data fields for each project.

In addition, the company information means the contractor, maintenance company data, and stores the contact information, address, recent contact date information, maintenance implementation information of the contractor and maintenance company.

The facility management module 130 performs a function for facility information and data management. The facility information includes equipment name, installation location, manufacturer, related catalog information, and maintenance guide information. Installation location, manufacturer, related catalog information, maintenance guide information is given a unique ID for each facility to create a data field for each ID to be managed at a glance.

The operation management module 140 performs a function for managing the central control monitoring facility costs, on-site monitoring control equipment.

Specifically, the information includes system configuration status, IO management, network management, and field operation logic management information.

Therefore, when a problem occurs through the operation management module based on the current system configuration status, IO management, network management, field operation logic management information to provide a base information that can quickly solve the problem.

In the past, site managers were able to understand only the specific automatic control logic of the site and manage it so that even if a failure occurred, it was easy to identify the part of the problem even by checking the value displayed on the MMI screen.

 However, the current situation is that the reduction of manpower and the automatic operation are gradually increasing, which is insufficient for the administrator to know and respond to all the logic.

So, by providing the operation management module to identify the location of the failure to respond quickly.

Operational logic that is operated and managed in the field is dozens of logics for small systems, but hundreds to thousands of operating logics for medium and larger systems have many more complex logics. The alternating operation flowchart is an example of this very simple operating logic.

The flow chart of the pump A, B, C alternating operation will be explained in detail. When the water level sensor of ④ rises above the high level of ④, the alternating operation logic operates by sending a signal to the PLC (flow chart ①).

At this time, the operation logic selects one of alternating operation AB, BC, CA and selects which operation to perform (flow chart ③).

If alternating operation BC is selected, PLC operates pump B and pump C by the operation logic (flow chart ④).

PLC checks the sensor to see if Pump B and Pump C are operating normally.

If it operates normally, keep checking if the water level sensor goes LOW. If it goes down LOW, stop Pump B and Pump C.

The role of PLC in the above logic is to operate various sensors and devices by the program logic sequence and state, and operation information server 100 is to bring the water level sensor, pump state, various devices and sensors state input to PLC Check if it works normally by comparing with.

On the other hand, the following will explain the flow chart of the pump A, B, C alternating operation failure and the operation program role.

For example, when the water level sensor in ④ rises above the high level, the tank will send a signal to the PLC to operate alternating operation logic (flow chart ①).

The operation logic selects one of alternating operation AB, BC, CA and selects which operation to perform (flow chart ③).

If alternating operation BC is selected, PLC operates pump B and pump C by operation logic (flow chart ④).

After the pump start command, check the status of pump B and pump C normally (figure 5), and start pump A if it does not operate normally.

To find out why pump B is not working and pump A is running, the operator should find the operation logic in the maintenance manual, check the MMI status value, and if the cause is still unknown, connect to the PLC and program the ladder. The problem must be resolved by analyzing it.

At this time, if the operation information system is used, it is possible to find the operation condition of the equipment by searching the relevant logic registered, and it is possible to find in a short time whether pump B is not working because pump B is not working because any condition is not matched at present. The downtime of a person can be minimized.

If the cause of the failure of Pump B is solved, Pump B will operate normally from the next operation.

Therefore, in the present invention, as described above, by providing an operation management module to grasp the location of the failure to provide an advantage that can be quickly responded.

The completion management module 150 performs a function for managing the completion book, completion drawing information, if a problem occurs in a specific facility, the structure and characteristics of the installation will be identified by referring to the completion book, completion drawing information Workers can solve problems quickly.

On the other hand, the maintenance management module 160 performs a function for managing maintenance history information, action information.

That is, since the maintenance schedule for each facility is different, it is necessary to periodically manage the corresponding schedule, and for this purpose, the maintenance history information is stored and managed.

In addition, during maintenance, it stores and manages the information of the measures taken by the workers, so it is possible to grasp the latest maintenance date and contents in real time and analyze the problem identification at the remote site instead of the site, and then perform the action accordingly. Proactive action is possible.

Through the present invention, the operation information server communicates with the communication instrumentation control equipment that can communicate to obtain a variety of information to enable intelligent operation, according to the operation information server provided by the person in charge promptly causes the failure of the process control equipment It will provide the effect that you can identify and take action.

Those skilled in the art to which the present invention pertains as described above may understand that the present invention may be embodied in other specific forms without changing the technical spirit or essential features of the present invention. Therefore, the above-described embodiments are to be understood as illustrative in all respects and not restrictive.

100: operation information server
200: central monitoring control equipment
300: site monitoring control equipment
400: program logic control equipment
500: measuring equipment

Claims (4)

In the instrumentation control equipment remote monitoring control system,
Operation information server 100; and
Central monitoring control equipment (200) as equipment for acquiring, storing, and controlling data for monitoring and control of the instrumentation; and
It is installed at a remote place from the center to the remote site, the field monitoring control equipment 300 for collecting equipment status information data such as measuring equipment and processing control commands; and
A program logic control facility 400 for collecting state information data of measuring instruments and valves and processing control commands; and
Measuring device 500 for measuring various sensor data required for operation; consisting of,
The central monitoring control equipment 200,
SCADA server 210 to perform a comprehensive supervisory control function in the central control room; and
It is installed in the central control room, the central control panel (220, COS) which is a computer for monitoring and control of the driver's workers;
By collecting the facility status information necessary for the monitoring control from the SCADA server 210 and providing the collected information to the central control panel 220, COS, it is possible to detect and control through the operator working in the central control panel ,
The operation information server 100,
An operation information DB server 110 which is a facility for storing instrumentation operation information; and
Project management module 120 for managing the business information, company information; And
Equipment name, installation location, manufacturers, related catalog information, equipment-specific information including maintenance guide information, facility management module 130 for data management; and
Operation control module 140 for managing the central control and monitoring facilities, on-site monitoring and control facilities; and
Completion management module 150 for managing the completion book, completion drawing information; and
And a maintenance management module 160 for managing maintenance history information and action information.
The project management module 120 includes information on a business including management information for each part of a construction part related to automatic control equipment, contact information, address, address, recent contact date information, and maintenance execution information of a contractor and maintenance company. It performs a function to manage, to give the ID to manage the management information for each business, characterized in that to classify and store the data field for each business,
The equipment name, installation location, manufacturer, related catalog information, maintenance guide information is characterized in that by giving a unique ID for each facility to create a data field for each ID to manage at a glance,
The operation management module 140 includes the system configuration status, IO management, network management, on-site operation logic management information, the current system configuration status, IO management, network management, field operation logic through the operation management module when a problem occurs Based on the management information to provide a base information that can solve the problem,
The completion management module 150 is characterized by determining the structure and characteristics of the facility with reference to the completion book, completion drawing information, if a problem occurs in a specific facility,
The maintenance management module 160 stores and manages the measures taken by the operator, so as to grasp the maintenance date and contents in real time, analyze the problem at a remote site, not at the site, and then perform the action accordingly. Instrument control facility remote monitoring control system, characterized in that to enable the precautions to.
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