KR20030036286A - The remote electric power monitoring and controlling system and its process - Google Patents

Abstract

PURPOSE: A system for sensing and controlling a remote electric power and a method thereof are provided to enable a manager to obtain various kinds of information from a server system, display the information, control the server system through a PC, and monitor an electric power state of accommodations at any place by connecting to the server system which classifies electric power information obtained from the accommodations and storing the electric power information in a database through a PC and the Internet. CONSTITUTION: An event DB(10) stores previous events periodically and services the previous events to a client(20). A report DB(11) creates and stores various kinds of electric power information obtained in the digital relay(1) according to a day, month, and year. The report DB(11) also services the electric power information to the client(20). A trend DB(12) stores data with respect to various kinds of electric power information and services the data to the client(20) through a graph of broken line from the past. A user DB(13) stores log-in information for receiving a service from the client(20) to an operator. An image recording DB(14) stores image data of a place having a web camera of the incoming/distribution panel(6) and a substation and supplies a service to the client(20). The client(20), who sets an event directly and displays electric power information being supplied from a server system(2) on various setting screens, is connected to the server system(2) through the Internet.

Description

The remote electric power monitoring and controlling system and its process

The present invention can manage and operate the power operation system of public facilities such as factories, intelligent buildings, apartments, hospitals, schools, etc. via the Internet, and can expect the reduction of manpower, energy and electric bills in maintenance, and customer management. The present invention relates to a remote power monitoring and control system and a method for managing power usage information of an electric power facility in any place where the Internet is available. Specifically, the power situation of consumers is collectively managed from a remote server system via the Internet. In addition, each customer is connected to the server system by a personal computer (PC), so that the power situation can be grasped in real time and monitored and controlled, and the manager of the customer is connected to the Internet from any place where the Internet is available. To monitor all remote power installations Remote power monitoring, which can work in real time and control systems related to the method.

Various instruments, relays, and operation S / W of power facilities of public facilities such as substations, power plants, factories, intelligent buildings, apartments, hospitals, schools, etc., are combined with the on-site direct controller (DDC), and each on-site direct controller ( DDC) and a central communication device (monitoring control device) in the central control room installed at a site or at a certain place around the site establish a dedicated communication line (optical cable) to monitor and control the power operation status of the site.

In addition, a system for installing a server system managed by an expert, connecting a plurality of customers who want to service to the Internet, and monitoring and controlling the power situation of the plurality of customers by a server at the same time is established. In the event of an abnormality, an alarm is issued and the manager can be immediately contacted for action.

However, the above method is inconveniently controlled by each customer, such as centrally controlled by the server system, and performing a change of the set value requested from the customer. The monitoring value of the power situation can be grasped in real time. There is no problem.

An object of the present invention is to solve the problems with the conventional system as described above, the customer's manager is connected to the server system for classifying the power information obtained from the customer and stored in the database via a PC and the Internet to Remote power monitoring and control system that can obtain and display information, control the server system directly through PC for setting and information of various events, and monitor and control the power status of customers from any place connected to the Internet. In providing a method.

1 is an overall configuration diagram of the present invention

※ Explanation of codes for main parts of drawing

1 digital relay 2 server system 3 protocol converter

4: Controller 5: RTU 6: Switchgear

7: Web camera 8: Web server 9: DB server

10: Event DB 11: Report DB 12: Trend DB

13: user DB 14: image recording DB 15: screen monitoring

16: Event Monitoring 17: Trend Monitoring and Analysis 18: Report Analysis

19: real time monitoring 20: client

Hereinafter, the configuration and operation of the present invention will be described in detail with reference to the accompanying drawings.

The present invention measures and displays a variety of power information with one device, a plurality of digital relays (1) including a relay function and a control function, and the signals of the digital relay (1) to the server system (2) through the Internet Protocol converter (3) which converts to TCP / IP for communication and enables communication, and protocol converter (3) at a remote location by using a telephone line in case of internet failure or abnormality of protocol converter (3). Controller 4 for checking and recovering the abnormal state of the controller, and a ladder compiler for mounting a control program easily for the user to easily control the program. A switchgear 6 including a remote terminal unit (RTU) 5 composed of a top-limiting CPU module and various (digital or analog) input / output modules; A web camera (7) installed at a plurality of places inside and outside the switchboard (6) to monitor the situation of the site; Normal remote power monitoring and control consisting of a server system (2) consisting of a web server (8) and a database (DB) server (9), wherein the switchboard (6) and the web camera (7) are connected via the Internet. In the system; The DB server 9 constituting the server system 2 includes an event DB 10, a report DB 11, a trend DB 12, a user DB 13, and an image recording DB 14. The server system 2 receives the services of the screen monitoring 15, the event monitoring 16, the trend monitoring and analysis 17, the report analysis 18 and the real-time field monitoring 19 from the server system 2. The client 20 is characterized in that the configuration is connected to the Internet.

One customer having such a configuration is connected to the server system 2 via the Internet, and all the customers who want the service of power monitoring and control are connected to the server system 2 with the above configuration.

The customer's site consists of a switchgear 6 having a plurality of digital relays 1 installed. The address corresponding to each digital relay 1 and the IP address of the protocol converter 3 are stored in a server. It is registered in the system 2, and various electric power information of the switchboard 6 is collected every 3 to 10 seconds and transmitted to the server system 2 via the Internet.

The server system 2 stores various power information received from the protocol converter 3 in a separate DB server 9 in the form of an event DB 10, a report DB 11, a trend DB 12, and the like. The real-time image data received from the web camera 7 is also stored in the image recording DB 14. All information stored in the server system 2 is immediately provided to the request of the PC used by the manager of the customer, the client 20 connected to a communication network such as the Internet. And the information about the client 20 is stored separately in the user DB 13 to completely block the access of unauthorized users.

The event DB 10 stores the past events such as the operation state of the switchgear 6 and the operation state of the digital relay 1 and serves the client 20 periodically, and reports DB 11. After generating and storing a variety of power information (current, voltage, frequency, power factor power amount, etc.) acquired in the digital relay 1 in the form of daily report, monthly report, yearly report and serves to serve the client 20, Trend DB ( 12) stores data about various power information and serves the client 20 with a line graph from the past to the present, the user DB 13 is responsible for user authentication for security and if the client from outside When the 20 accesses the remote power monitoring and control system, it recognizes the user ID and password and only allows access to the verified user, and the image recording DB 14 receives the number. After storing the image data in real time monitoring the place where the web camera 7 is installed, such as the switchboard 6 and the interior of the substation (electric room) serves to provide a service when the client 20 requests.

In this way, the server system 2 transmits the power information (voltage, current, power factor, power amount, etc.) received from the field to the client 20 in real time, and stores it in the trend DB 12 and the report DB 11. The image information of the web camera 7 is stored in the image recording DB 14 and transmitted to the client 20 in real time. The user DB 13 relates to login information for receiving services from the client 20 as an operator and includes an ID and a password. Then, the server system 2 acquires and displays the data of the switchboard 6 in real time at intervals of 3 to 10 seconds, and stores each data in the database DB 12 at an hourly interval.

That is, the server system 2 sets an event which is an alarm value for each digital relay 1, and if an event occurs in the switchgear 6, it is immediately displayed on the event monitoring 16 screen of the client 20, and the occurrence time. Etc. are stored in the event DB 10, and various data received in the field are stored in the trend DB 12 according to a request of the client 20.

The server system 2 is installed by a specialized company that manufactures the switchgear 6 and develops a power monitoring and control system, and a professional manpower manages the data and state of the switchgear 6 at each site through the Internet (monitoring and controlling). It is desirable to make it possible.

Client 20 services such as screen monitoring (15), event monitoring (16), trend monitoring and analysis (17), report analysis (18), real-time on-site monitoring (19) for monitoring the power status of switchboards (6). To be provided.

The web camera 7 constantly monitors the switchgear 6 of the site to monitor the upper, side, front and inside of the switchgear 6, and the installation location and quantity can be adjusted according to the needs of the customer.

The web server 8 provides a screen for the client 20 to monitor in real time, periodically retrieves and displays the monitoring information from the DB server 9, the single line diagram of the entire switchgear 6 in a single screen, It displays all power information such as voltage and current, and changes the data value displayed on the screen as 3 seconds, which is close to real time.

The screen configuration of the client 20 that receives various information from the web server 8 is screen monitoring 15, event monitoring 16, trend monitoring and analysis 17, report analysis 18, real time field monitoring. It consists of 19.

In this case, the screen monitor 15 dynamically updates the data value (power information) of the digital relay 1 to enable monitoring such as the user directly monitoring in the field. Event monitoring (16) shows the events generated in the switchgear (6) in operation in real time to enable the operator to recognize the situation occurring in the field in real time, assigning a unique number to a plurality of digital relay (1) The relay can be identified, selected to display the type and time of the event, and to display not only real time but also past event occurrence history. The trend monitoring and analysis 17 acquires and updates data in real time from the trend DB 12 of the server system 2 and updates the real-time trends and points (initial value, minimum minimum value, maximum alarm value, etc. of a specific voltage, current, power amount, etc.). , Alarm minimum value, attention maximum value, attention minimum value, etc.) are provided through charts and tables. In the case of real-time trends, the data display cycle is 15 seconds. The report analysis 18 is configured to select and output by daily, monthly and annual report. Real-time site monitoring 19 is a service provided to prevent unexpected accidents or external access to divide the images received from the web camera 7 by the number of web cameras 7 to monitor all the images on one screen. And the received image can be periodically stored in the image recording DB (14). Therefore, the client 20 may monitor the status of all switchboards 6 in real time on one screen, and the event is displayed on the screen or generates an alarm sound when an event occurs. The critical event is that even if the administrator is not connected to the server system 2, the server system 2 can immediately access the server system 2 through an alarm message sent by the server system 2, and the above alarm message is a short message. Service (SMS) and the like.

As described above, the present invention allows the administrator to access the server system 2 using a PC and perform power monitoring and control tasks in real time directly, regardless of time and place, wherever the Internet is available, and the switchboard 6 Specialist in operation that installs server system (2) in specialized company which developed manufacturing and power monitoring and control system so that professional personnel can manage (monitor and control) data and status of switchboard (6) at each site through internet. If there is a problem or an abnormality in the power facility, the server operator notifies the administrator of the information or receives a radio telephone alarm text signal automatically issued by the server system 2 when a major failure occurs. Even if the manager wants to monitor and control the power facility directly at the place, the manager can access the PC with internet without the support of equipment. By accessing the server system (2) and receiving the information of the site in real time, it is possible to directly monitor and control the power facilities, and it is possible to perform more efficient work than the administrators are monitoring all the time during the system operation, so that the management of the power facilities is perfect. Can be written.

As described above, the present invention obtains and displays various types of information from the server system by accessing the PC through the Internet to a server system that classifies and stores power information obtained from the customer in a DB server. By directly controlling the server system, the power situation of the customer can be monitored and controlled anywhere in the Internet.

Claims (3)

A switchgear 6 including a plurality of digital relays 1, a protocol converter 3, a controller 4, and an RTU 5; A web camera 7 installed at a plurality of places inside and outside the switchboard 6; In the remote power monitoring and control system comprising a server system (2) consisting of a web server (8) and a DB server (9), wherein the switchboard (6) and the web camera (7) are connected via the Internet; The DB server 9 constituting the server system 2 periodically stores past events such as the operation state of the switchboard 6 and the operation state of the digital relay 1 and serves the client 20 for service. (10), the report DB 11 serving the client 20 after generating and storing various power information acquired in the digital relay 1 in the form of daily report, monthly report, and yearly report, and data concerning various power information. Trend DB 12 that stores and services the client 20 with a line graph from the past to the present, a user DB 13 that stores login information for receiving the service from the client 20 as an operator, and a switchboard 6 ) And a video recording DB (14) for storing a video data monitoring the place where the web camera 7 is installed, such as the interior of the substation (electric room) in real time and providing a service on request of the client 20, ; Remote power monitoring, characterized in that the client 20 which directly performs event setting and the like, and displays the power information provided from the server system 2 on various setting screens, is connected to the server system 2 through the Internet. And control system. The method of claim 1, wherein the client 20 and the screen monitor 15 function for dynamically monitoring the data value (power information) of the digital relay 1 to enable monitoring such as the user directly monitors in the field; ; By showing the events generated in the currently active switchgear (6) in real time, the operator can recognize the situation occurring in the field in real time, display the type and occurrence time of the event, as well as real-time as well as the past event occurrence history An event monitoring 16 function selectable for display; A trend monitoring and analysis (17) function for acquiring and updating data in real time from the trend DB 12 of the server system 2 and serving the state of real time trends and points through charts and tables; A report analysis 18 function for selecting and outputting power information by daily, monthly and annual reports; As a service provided to prevent unexpected accidents or external access, real-time field monitoring (19) function of dividing the images received from the web camera (7) by the number of web cameras (7) and monitoring all the images on one screen. Remote power monitoring and control system, characterized in that performed. The server system 2 sets an event which is an alarm value for each digital relay 1, acquires power information from each switchgear 6, and transmits the power information to the client 20 in real time. Stored in the report DB 11; When an event occurs in the switchboard 6, the server system 2 immediately displays the event monitoring 16 screen of the client 20 connected to a communication network such as the Internet, and the event occurrence time is stored in the event DB 10. To; Various data received in the field are stored in the trend DB 12 according to a request of the client 20; Services such as screen monitoring (15), event monitoring (16), trend monitoring and analysis (17), report analysis (18), and real-time on-site monitoring (19) for monitoring the power status of the switchboard (6) in the client (20). Remote power monitoring and control method comprising the provided.