KR960043542A - Data Sampling Time Synchronization Method - Google Patents

Data Sampling Time Synchronization Method Download PDF

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Publication number
KR960043542A
KR960043542A KR1019950012624A KR19950012624A KR960043542A KR 960043542 A KR960043542 A KR 960043542A KR 1019950012624 A KR1019950012624 A KR 1019950012624A KR 19950012624 A KR19950012624 A KR 19950012624A KR 960043542 A KR960043542 A KR 960043542A
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KR
South Korea
Prior art keywords
terminal
data
data sampling
frame
time synchronization
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KR1019950012624A
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Korean (ko)
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KR0142693B1 (en
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윤영길
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이종수
Lg 산전주식회사
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Priority to KR1019950012624A priority Critical patent/KR0142693B1/en
Publication of KR960043542A publication Critical patent/KR960043542A/en
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Publication of KR0142693B1 publication Critical patent/KR0142693B1/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/0061—Details of emergency protective circuit arrangements concerning transmission of signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/124—Sampling or signal conditioning arrangements specially adapted for A/D converters
    • H03M1/1245—Details of sampling arrangements or methods
    • H03M1/1285—Synchronous circular sampling, i.e. using undersampling of periodic input signals

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)

Abstract

본 발명은 센서나 데이타 액쿠지션 디바이스들 사이에 같은 시간에 데이타를 샘플링하기 위한 데이타 샘플링 시간동기방법에 관한 것으로, 복수의 송·수신장치를 구비한 전류데이타 취득수단 전류차동계전 네트워크에서 상기 전류데이타 취득수단들 각각에 릴레이 연산수단을 일대일로 연결 구성하고, 각 단자들에 대해서 마스터 단자, 노멀단자, 리턴단자로 설정하여 각 단자들이 친국에 의존하지 않고 독자적으로 데이타 샘플링 시간 동기를 제어하고, 또한 모든 단자들이 샘플링 데이타를 공유하면서 동시에 연산처리할 수 있다.The present invention relates to a data sampling time synchronizing method for sampling data at the same time between a sensor or a data acquisition device, the current data acquiring means comprising a plurality of transmitting and receiving devices. The relay operation means is connected to each one of the data acquisition means in one-to-one configuration, and each terminal is set as a master terminal, a normal terminal, and a return terminal, so that each terminal independently controls data sampling time synchronization without depending on the parent station. In addition, all terminals share sampling data and can be processed simultaneously.

그리고, 전력계통분야의 송전선 보호를 위한 전류차동 계전이나 선로의 고장점을 신속히 발견해내고 데이타 샘플링시간동기를 정확하게 제어하는 데이타 샘플링 시간동기방법이다.In addition, it is a data sampling time synchronization method for quickly detecting current differential relays or line faults for transmission line protection in power system fields and precisely controlling data sampling time synchronization.

Description

데이타 샘플링시간 동기방법Data Sampling Time Synchronization Method

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제3도는 본 발명의 데이타 샘플링시간동기방법을 설명하기 위한 네크워크 구조도, 제4도는 본 발명의 데이타 샘플링시간동기방법에 따른 동작타이밍도.3 is a network structure diagram for explaining the data sampling time synchronization method of the present invention, and FIG. 4 is an operation timing diagram according to the data sampling time synchronization method of the present invention.

Claims (5)

복수의 송 · 수신장치를 구비한 전류데이타를 취득수단 전류차동 계전 네트워크에서의 상기 전류데이타 취득수단들 각각에 대하여 전류차동보호연산을 수행하는 릴레이 연산수단을 일대일로 연결 구성시켜 형성하는 제1단계와; 상기 제1단계에서 형성된 각 단자중 어떤 하나의 단자를 마스터 단자로 설정하고 단자의 데이타 샘플링주기와 동일한 주기로 데이타 프레임을 송신하면서 일정 샘플주기마다 동기프레임을 송신하는 제2단계와; 상기 제1단계에서 형성되어진 단자중 상기 제2단계에서 설정되어진 마스터 단자를 제외한 어떤 하나의 단자를 노멀단자로 설정하고 상기 마스터 단자로부터 발생되어진 데이타 프레임을 임의의 노멀단자로부터 수신하여 다음 노멀단자로 송신하는 제3단계와; 상기 제2단계에서 형성되어진 상기 마스터(Master)단자 또는 노멀 단자를 제외한 단자로서 상기 어떤 노멀단자로부터 송신한 데이타 프레임을 수신하는 리턴 단자 및 상기 리턴 단자는 자신이 송신한 데이타를 수신하여 다시 어떤 노멀단자로 송신하는 제4단계를 포함하는 것을 특징으로 하는 데이타 샘플링 시간동기방법.Acquisition means for acquiring current data having a plurality of transmitters and receivers First step of forming and configuring one-to-one relay operation means for performing current differential protection operation for each of the current data acquisition means in the current differential relay network Wow; A second step of setting any one of the terminals formed in the first step as a master terminal and transmitting a synchronization frame at a predetermined sample period while transmitting a data frame at the same period as the data sampling period of the terminal; Of the terminals formed in the first step, any terminal except the master terminal set in the second step is set as a normal terminal, and a data frame generated from the master terminal is received from an arbitrary normal terminal to the next normal terminal. Transmitting a third step; A terminal other than the master terminal or the normal terminal formed in the second step, a return terminal for receiving a data frame transmitted from the normal terminal, and the return terminal receives data transmitted by the return terminal and then returns any normal. And a fourth step of transmitting to the terminal. 제1항에 있어서, 어떤 하나의 전송로가 과부하 또는 외란으로 인해 단선(고장)시 해당 단자가 수동 혹은 자동으로 데이타 전송을 궤환시키는 것을 특징으로 하는 데이타 샘플링 시간동기방법.The data sampling time synchronization method according to claim 1, wherein, when any one transmission path is disconnected due to overload or disturbance, the corresponding terminal feeds back data transmission manually or automatically. 제1항에 있어서, 각 단자들이 독자적으로 동기 프레임의 왕복시간을 측정하여 그 시간의 중앙 데이타 샘플링 기준점으로 삼는 것을 특징으로 하는 데이타 샘플링 시간동기방법.2. The method of claim 1, wherein each terminal independently measures the round trip time of the sync frame and uses it as the central data sampling reference point of the time. 제1항에 있어서, 상기 마스터 단자의 프레임 왕복시간이 데이타 샘플링 주기보다 짧은 시스템에 적용될 경우 상기 마스터 단자 프레임 왕복시간을 상기 노멀단자나 리턴단자에 전송하지 않고서도 데이타 샘플링 시간 동기제어를 수행하는 것을 특징으로 하는 데이타 샘플링 시간동기방법.The method of claim 1, wherein when the frame round trip time of the master terminal is applied to a system shorter than the data sampling period, the data sampling time synchronization control is performed without transmitting the master terminal frame round trip time to the normal terminal or the return terminal. A data sampling time synchronization method. 제1항에 있어서, 상기 마스터 단자의 프레임 왕복시간이 데이타 샘플링 주기보다 긴 시스템에 적용될 경우 전송지연 계산을 하기 위해서 상기 마스터단자는 프레임 왕복시간을 다른 단자로 전송하는 것을 특징으로 하는 데이타 샘플링 시간동기방법.2. The data sampling time synchronization as claimed in claim 1, wherein the master terminal transmits the frame round trip time to another terminal in order to calculate a transmission delay when the frame round trip time of the master terminal is longer than a data sampling period. Way. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950012624A 1995-05-19 1995-05-19 Sampling time synchronous method of data KR0142693B1 (en)

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Application Number Priority Date Filing Date Title
KR1019950012624A KR0142693B1 (en) 1995-05-19 1995-05-19 Sampling time synchronous method of data

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Application Number Priority Date Filing Date Title
KR1019950012624A KR0142693B1 (en) 1995-05-19 1995-05-19 Sampling time synchronous method of data

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KR960043542A true KR960043542A (en) 1996-12-23
KR0142693B1 KR0142693B1 (en) 1998-08-17

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