KR20170053227A - Handy terminal for electronic protection relay/meter - Google Patents

Handy terminal for electronic protection relay/meter Download PDF

Info

Publication number
KR20170053227A
KR20170053227A KR1020150155436A KR20150155436A KR20170053227A KR 20170053227 A KR20170053227 A KR 20170053227A KR 1020150155436 A KR1020150155436 A KR 1020150155436A KR 20150155436 A KR20150155436 A KR 20150155436A KR 20170053227 A KR20170053227 A KR 20170053227A
Authority
KR
South Korea
Prior art keywords
information
electronic protection
external device
mcu
parameter
Prior art date
Application number
KR1020150155436A
Other languages
Korean (ko)
Other versions
KR101744942B1 (en
Inventor
최순영
송인재
Original Assignee
주식회사 한길이에스티
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 한길이에스티 filed Critical 주식회사 한길이에스티
Priority to KR1020150155436A priority Critical patent/KR101744942B1/en
Publication of KR20170053227A publication Critical patent/KR20170053227A/en
Application granted granted Critical
Publication of KR101744942B1 publication Critical patent/KR101744942B1/en

Links

Images

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems
    • G08C19/02—Electric signal transmission systems in which the signal transmitted is magnitude of current or voltage
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R13/00—Arrangements for displaying electric variables or waveforms
    • G01R13/02—Arrangements for displaying electric variables or waveforms for displaying measured electric variables in digital form
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

The present disclosure relates to a handy terminal for an electronic protection relay/meter. More specifically, the handy terminal can perform maintenance and management functions by individually accessing a plurality of electronic protection relays/meters installed in an industrial field irrespective of the models thereof. The handy terminal comprises: a communications controller communicating with an external device defined by one selected from the electronic protection relays/meters; and a main control unit (MCU) for determining model information on the basis of code information intrinsically applied to the external device and received by the communications controller, and extracting parameter information corresponding to the model information of the external device from communications data received through the communications controller on the basis of the model information.

Description

HANDY TERMINAL FOR ELECTRONIC PROTECTION RELAY / METER}

The present disclosure relates to a handy terminal for electronic protection relays and measuring instruments, and more particularly, to a handy terminal for electronic protection relays and measuring instruments which can be individually connected to perform maintenance functions irrespective of a plurality of electronic protection relays / The present invention relates to a handy terminal for electronic protection relays and measuring instruments.

Herein, the background art relating to the present invention is provided, and they are not necessarily referred to as known arts.

Electronic Protection Relay · The instrument is a device that has a command function to cut a part of the circuit when an abnormal condition such as short circuit or eddy current occurs in the circuit.

Electronic protection relays and measuring instruments are installed in industrial sites such as machine lines operated by electric power or transmission and distribution lines, and they are installed at a plurality of places and monitor the state of the corresponding sections.

Usually, the monitored information is transmitted to the main server connected to the wired network, and the main server monitors the status and status of the plurality of electronic protection relays and measuring instruments.

In this connection, Patent Documents 1), 2) and 3) are exemplified. In particular, Patent Document 3) discloses a simple surveillance panel in which a plurality of electronic protection relays and measuring instruments can be individually connected to check the status.

On the other hand, protective relay and measuring instruments installed on industrial sites are used in large quantities in the field elements. Each protection relay and measuring instrument has different parameters to be set for correct and fast operation, and appropriate data Should be input.

In particular, when replacing some of the protection relays and measuring instruments in the industrial field, the electronic protection relays and measuring instruments produced by various manufacturers are initialized with the default data at the time of production, It is often necessary to reset the parameters.

This requires a great deal of time and manpower in the industrial field, and errors occurring in the setting process are very important because they are directly linked to safety accidents.

Therefore, it is required to develop a control device that can improve the inconvenience and risk of such a setting process.

1. Patent Document 1) Korean Registered Utility Model No. 20-0363756 2. Patent Document 2) Korean Patent Laid-Open Publication No. 10-2013-0078369 3. Patent Document 3) Korean Patent Laid-Open Publication No. 10-2014-0122820

The purpose of this disclosure is to provide a handy terminal for electronic protection relays and measuring instruments which can be individually connected to a plurality of protection relays and measuring instruments installed on an industrial site to set up or copy and store status monitoring parameters and corresponding data .

The present invention is not intended to be exhaustive or to limit the scope of the present invention to the full scope of the present invention. of its features).

In order to solve the above problems, the present disclosure provides a handy terminal for an electronic protection relay / measuring instrument, which is individually connected to a plurality of electronic protection relays and measuring instruments, the handy terminal comprising: an external device defined as a selected one of the plurality of electronic protection relays and / A communication controller for communication connection; And a control unit that determines the model information based on the station number information uniquely assigned to the external device received by the communication controller, and based on the model information, information on the type of the external device from the communication data received through the communication controller And an MCU (Micro Control Unit) for extracting the parameter information corresponding to the electronic control unit. The first aspect of the present invention provides a handy terminal for an electronic protection relay and a measuring instrument.

The present disclosure relates to a handy terminal for an electronic protection relay and a measuring instrument according to the first invention, wherein the MCU comprises: a plurality of digital relays corresponding to the pre-stored electronic protection relays / Based on communication protocol information that can analyze the parameter information included in the communication data, according to type information of each product of the instruments and type information of the product, device information and parameter information of the external device And a second handy terminal for an electronic protection relay and a measuring instrument.

According to the present invention, there is provided a handy terminal for an electronic protection relay / measuring instrument according to the second invention, comprising: a monitoring screen corresponding to the model information among a plurality of preset monitoring screens based on the model information determined by the MCU; And a monitoring unit for displaying the parameter information. The third aspect of the present invention provides a handy terminal for an electronic protection relay and a measuring instrument.

The present disclosure relates to a handy terminal for an electronic protection relay and a measuring instrument according to the second invention, which comprises a parameter storage memory for storing the model information and the parameter information determined by the MCU, and a handy terminal for an electronic protection relay / This is provided as a fourth invention.

The present invention provides a handy terminal for an electronic protection relay and a measuring instrument according to the fourth invention, wherein the MCU selectively inputs the model information and the parameter information stored in the parameter storage memory to the external device A handy terminal for protective relay and measuring instrument is provided as the fifth invention.

According to the present disclosure, it is possible to determine model information of an external device in an ON-Line state, and to change parameter information and calibration data corresponding thereto.

According to the present disclosure, it is possible to determine model information of an external device in an ON-Line state and monitor parameter information corresponding thereto.

According to the present disclosure, parameter information and calibration data of an external device can be set or stored in the off-line state.

According to the present disclosure, data stored in the OFF-Line state can be copied to an external device on the ON-Line.

According to the present disclosure, monitoring and parameter setting of a plurality of electronic protection relays and meters installed in an industrial field becomes convenient.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a system configuration diagram of a handy terminal for an electronic protection relay and measuring instrument according to the present disclosure; FIG.
2 is a system flow diagram of a handy terminal for an electronic protection relay / instrument according to the present disclosure;

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, various embodiments for implementing a handy terminal for electronic protection relay and measuring instrument according to the present disclosure will be described with reference to the drawings.

It should be understood, however, that there is no intention to limit the scope of the present disclosure to the embodiments described below, and that those skilled in the art, having the benefit of the teachings of this disclosure, It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention.

In addition, the terms used below are selected for convenience of explanation. Therefore, in order to grasp the technical contents of the present disclosure, they should be interpreted appropriately in accordance with the technical idea of the present disclosure without being limited to the prior meaning.

FIG. 1 is a diagram showing a system configuration of a handy terminal for an electronic protection relay and a meter according to the present disclosure, and FIG. 2 is a system flow diagram of a handy terminal for an electronic protection relay and a meter according to the present disclosure.

1 and 2, the handheld terminal 100 for an electronic protection relay and measuring instrument according to the present embodiment includes a communication controller 131 and an MCU 121, and includes monitoring units 132 and 141, It is preferable to further include a memory 122.

The handheld terminal 100 for an electronic protection relay and measuring instrument according to the present embodiment is provided as an apparatus that can be individually connected to a plurality of electronic protection relays and meters.

It goes without saying that the present invention can also be applied to a case where a main server capable of monitoring and integrating a plurality of electronic protection relays and measuring instruments is provided. This is because it is impossible for the main server to perform the function of acquiring the model information or the parameter information of each of the plurality of electronic protection relays and measuring instruments or copying them to the electronic protection relay and the measuring instrument selected by the user again.

The communication controller 131 communicates with an external device k defined as a selected one of a plurality of electronic protection relays and meters.

The communication method may be any of wired or wireless communication.

The MCU 121 judges the model information based on the station number information uniquely assigned to the external device k received by the communication controller 131 and receives the model information based on the model information through the communication controller 131 The parameter information corresponding to the model information of the external device k is extracted from the communication data.

Here, the parameter information means the type of parameter and its data.

To this end, the MCU 121 is connected to a plurality of digital relays corresponding to the CO line information and the station number information of the plurality of electronic protection relays and / or meters, the type information for the products of each of the instruments, Communication protocol information for analyzing the included parameter information is stored in advance. Based on the communication protocol information, device information and parameter information of the external device k are extracted in comparison with the information received by the communication controller 131.

The monitoring units 132 and 141 constitute a monitoring screen corresponding to the model information among a plurality of preset monitoring screens based on the model information determined by the MCU 121 and display parameter information.

Preferably, the monitoring units 132 and 141 include an LCD display device 141 and an LCD controller 132.

The LCD controller 132 constitutes a monitoring screen on the LCD display device 141 and displays parameter information according to an instruction from the MCU 121.

On the other hand, the parameter information storage memory 122 is configured to store the model information and the parameter information determined by the MCU 121, and is provided independently of the MCU 121.

The MCU 121 also functions to selectively input the model information and the parameter information stored in the parameter information storage memory 122 to the external device k.

This makes it possible to eliminate the inconvenience of setting by copying the parameter information previously stored in the external device having the parameter information newly installed and basically stored by the manufacturer.

1 and 2, the system configuration and the system flow of the handheld terminal 100 for an electronic protection relay and measuring instrument according to the present disclosure will be described in detail.

1, the system configuration of the electronic protection relay / instrument handy terminal 100 according to the present disclosure includes an input unit 110, an MCU unit 120, a control unit 130, and an output unit 140 , And an electronic protection relay / measuring device as an external device (k).

The input unit 110 has a setting switch (a) for setting various parameter data on the ON / OFF-Line.

The MCU unit 120 that operates the system as a whole includes an MCU 121 as a central processing unit and a parameter information storage memory 122 for storing various parameter information (types and data values thereof). In addition, a timer 123 for performing communication interval adjustment, time check, etc. may be provided, and an LCD display memory 124 for displaying monitoring data may be provided.

The control unit 130 is provided with a communication controller 131 for communication with the external device k and an LCD controller 132 for controlling the display of parameter types and monitoring data, A controller 133 may be additionally provided.

The output unit 140 is provided with an LCD display device 141 for displaying parameter information (type and data value) and monitoring data, and an electronic protection relay / handy terminal 100 for measurement and an external device the LED display device 142 may be provided for displaying various states of the LEDs.

Next, the handheld terminal 100 for an electronic protection relay and measuring instrument according to the present disclosure can operate in an ON-line and an OFF-line state.

Referring to FIG. 2, when the power supply of the handheld terminal 100 for an electronic protection relay and measuring instrument according to the present disclosure is turned on, the MCU 121 firstly checks the connection state with the external device k through the communication controller 131 At this time, whether or not the connection to the external device k is recognized as an ON-Line state when it is normally checked during a predetermined time calculated by the timer 123, and if not, it is recognized as an OFF-Line state.

In the case of ON-Line, it is possible to set and store parameter information and monitor data of each parameter by grasping the type of connected equipment. In case of off-line, it is possible to set and save parameter information by artificially setting the type of external device. It becomes a state that can be done.

In the case of ON-Line, two functions can be performed. One is the parameter information setting, the storing and copying function, and the other is the monitoring function.

In the case of setting and storing the parameter information, the parameter information for the system of the connected external device (k) can be set for each item by using the setting switch 111. The set value is set by the MCU 121 and the LCD controller 141 And is displayed on the LCD display device 141 via the communication controller 131. When the setting is completed, the setting information is reflected to the external device k connected through the communication controller 131 in real time and is stored in the parameter information storage memory 122 .

In the case of monitoring, the status information of the connected external device k is read out through the communication controller 131 every predetermined time by the timer 123, and the data is read through the LCD controller 141 to the LCD display device 141, .

The type of data displayed at this time can be variously configured in the LCD display device 141 using the setting switch 111. The display data value according to the screen is transmitted from the connected external device k to the communication controller 131 .

In the case of OFF-Line, the first thing to do is to set the model to which the parameter value to be set is applied. When the model is set, the parameter values corresponding to the model are moved by using the setting switch 111, and the parameter values of the respective items are set. The set values at this time are displayed on the LCD display device 141, .

If the data stored on the ON / OFF-Line is copied to another product of the same model, it is possible to quickly reset a large number of parameters of the same product with a single setting.

The LED display device 142 by the LED controller 133 displays various information such as ON / OFF-Line status, communication failure status, and the status of the connected external device (k).

In summary, when the power source of the electronic protection relay / instrument handy terminal 100 according to the present disclosure is turned on, it is first determined whether or not the ON-Line (the terminal according to the present disclosure and the external device (k) If it is determined that the product is ON-Line, the type of the product is determined, and a monitoring screen suitable for the product is determined. Then, various data of the external device (k) are monitored in real time through the communication controller (131) Parameter setting and storage are performed directly. In addition, the stored parameter information may be copied in a lump.

In the case of OFF-Line, the parameter information is created and stored after setting the model manually.

In addition, data set on the ON / OFF-Line is stored in the parameter information storage memory 122, and this data can be copied to other devices of the same model.

This makes it possible to prevent erroneous setting that may occur when the device is reset every time, and it is possible to greatly reduce the time and effort required to reset the device.

Claims (5)

An electronic protection relay / handy terminal for measuring instruments, which is connected to a plurality of electronic protection relays and measuring devices,
A communication controller that communicates with an external device defined as a selected one of the plurality of electronic protection relays and / or meters; And
Based on the type information, based on the device number information uniquely assigned to the external device received by the communication controller, and based on the device type information, the device type information of the external device from the communication data received through the communication controller And an MCU (Main Control Unit) for extracting corresponding parameter information. The method according to claim 1,
Wherein the MCU is configured to perform the communication in accordance with the type information on the product of each of the plurality of digital relays and meters corresponding to the CO line information of the plurality of electronic protection relays and measuring instruments stored in advance, Wherein the device information and parameter information of the external device are extracted based on communication protocol information that can analyze the parameter information included in the data. The method of claim 2,
And a monitoring unit configured to form a monitoring screen corresponding to the model information among a plurality of predetermined monitoring screens based on the model information determined by the MCU and to display the parameter information. Handy terminals for measuring instruments. The method of claim 2,
And a parameter storage memory for storing the model information and the parameter information determined by the MCU. The method of claim 4,
Wherein the MCU selectively inputs the model information and the parameter information stored in the parameter storage memory to the external device.




KR1020150155436A 2015-11-06 2015-11-06 Handy terminal for electronic protection relay/meter KR101744942B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150155436A KR101744942B1 (en) 2015-11-06 2015-11-06 Handy terminal for electronic protection relay/meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150155436A KR101744942B1 (en) 2015-11-06 2015-11-06 Handy terminal for electronic protection relay/meter

Publications (2)

Publication Number Publication Date
KR20170053227A true KR20170053227A (en) 2017-05-16
KR101744942B1 KR101744942B1 (en) 2017-06-09

Family

ID=59035014

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150155436A KR101744942B1 (en) 2015-11-06 2015-11-06 Handy terminal for electronic protection relay/meter

Country Status (1)

Country Link
KR (1) KR101744942B1 (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200202810Y1 (en) * 2000-05-23 2000-11-15 이중설 Integration inspection apparatus

Also Published As

Publication number Publication date
KR101744942B1 (en) 2017-06-09

Similar Documents

Publication Publication Date Title
US8774204B2 (en) Handheld field maintenance bus monitor
CN106066637B (en) On-site equipment and operation method thereof
CN102890481A (en) Handheld field maintenance tool with process communication tunnel
CA2706970A1 (en) Electrical circuit with physical layer diagnostics system
JP2024042102A (en) System and method for managing alerts associated with devices in a process control system
JP3184828U (en) Monitoring equipment for photovoltaic power generation facilities
KR101744942B1 (en) Handy terminal for electronic protection relay/meter
KR101264869B1 (en) Local monitoring apparatus, monitoring system and method of digital protective relay
CN109870834B (en) Liquid crystal glass power-up detection system
KR101708762B1 (en) Power monitoring system and power monitoring device
CN108908402B (en) Robot hardware detection method and system
KR101701733B1 (en) Apparatus For Test and Evaluation of Condition Monitoring and Diagnosis Device
KR101289746B1 (en) Plc interworking integrated information system for etcher
JP2008281478A (en) Gas meter
KR101494217B1 (en) Instrumentation system and control method thereof
CN102353835A (en) Full-automatic test system for power of display equipment on production line and test method
KR101175908B1 (en) Digital protective relay and control method thereof
KR101545148B1 (en) Apparatus For Test and Evaluation of Control Device and Method for Test and Evaluation of the same
EP3046061B1 (en) Method of obtaining at least one operating parameter of an electrical substation component
KR20210043915A (en) Apparatus and method for distinguishing fault section of gas insulated switchgear
KR20170109279A (en) Control system of the automation equipment using a smart phone
JP7091034B2 (en) Monitoring and control system test support system, monitoring and control system test support method and terminal equipment
JP2004070586A (en) Manufacturing/inspection device operation system
JP2004070587A (en) Manufacturing/inspection device management system
KR20170028501A (en) Apparatus and Method for testing Intelligent Electronic Device

Legal Events

Date Code Title Description
A201 Request for examination
E701 Decision to grant or registration of patent right
GRNT Written decision to grant