KR920014308A - Subscriber Line State Transition Detection Method in Electronic Switching System - Google Patents

Subscriber Line State Transition Detection Method in Electronic Switching System Download PDF

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Publication number
KR920014308A
KR920014308A KR1019900022864A KR900022864A KR920014308A KR 920014308 A KR920014308 A KR 920014308A KR 1019900022864 A KR1019900022864 A KR 1019900022864A KR 900022864 A KR900022864 A KR 900022864A KR 920014308 A KR920014308 A KR 920014308A
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KR
South Korea
Prior art keywords
state
line state
line
data
state transition
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Application number
KR1019900022864A
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Korean (ko)
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KR930011357B1 (en
Inventor
강구화
윤병남
조무호
이우섭
곽동용
송범현
Original Assignee
경상현
재단법인 한국전자통신연구소
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Priority to KR1019900022864A priority Critical patent/KR930011357B1/en
Publication of KR920014308A publication Critical patent/KR920014308A/en
Application granted granted Critical
Publication of KR930011357B1 publication Critical patent/KR930011357B1/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q1/00Details of selecting apparatus or arrangements
    • H04Q1/18Electrical details
    • H04Q1/30Signalling arrangements; Manipulation of signalling currents

Abstract

내용 없음No content

Description

전전자 교환기에서의 가입자 라인상태 천이 검출방법Subscriber Line State Transition Detection Method in Electronic Switching System

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명의 제어를 위한 구성을 나타내는 블럭도, 제2도는 본 발명의 흐름도, 제3도는 본 발명을 적용한 상태 천이 검출 예시도, 제4도는 본 발명을 적용한 상태 천이 방지 예시도.1 is a block diagram showing a configuration for the control of the present invention, FIG. 2 is a flowchart of the present invention, FIG. 3 is a state transition detection example to which the present invention is applied, and FIG. 4 is a state transition prevention example to which the present invention is applied.

Claims (3)

전전자 교환기의 가입자 라인상태 천이 검출 방법에 있어서; 매 8ms 실시간 주기마다 연속적으로 가입자 라인의 상태를 읽어들여 라인 상태 데이타를 큐 구조로 이루어진 메모리에 저장하는 제1단계와, 상기 제1단계에서 저장된 데이타 중 전주기의 라인 상태 데이타와 전주기 이전의 라인 상태 유효 데이타를 배타적 논리합으로 비교하여 상태 변화가 발생했는가 검사하여 아닐시 중단하는 제2단계와, 상기 제2단계에서 상태변화 발생시 비교치와 상태천이 여부를 결정하는 동작 데이타와 논리곱으로 비교하여 상태변화가 발생했는가 검사하여 아닐시 중단하는 제3단계와, 상기 제3단계에서 상태 변화 발생시 상기 제1단계에서 저장된 데이타 중 전주기의 라인 상태 데이타와 현주기의 라인 상태 데이타를 배타적 논리합의 부정으로 비교하여 상태 변화가 발생했는가 검사하여 아닐시 가입자 라인에 잡음의 영향으로 순간적으로 발생한 상태 천으로 판단하여 현재의 라인의 상태가 천이 되는 것을 방지하며 검출을 중단하는 제4단계와, 상기 제4단계에서 상태 변화 발생시 정상적으로 라인의 상태가 천이 된 것을 나타내며, 라인 상태 천이 방향으로 결정하기 위하여 상기 제1단계에서 저장된 데이터 중 전주기의 라인 상태 데이타의 값이 1이면 라인상태가 로오에서 하이로 천이가 발생한 것을 나타내며, 전주기의 라인 상태가 데이타의 값이 0이면 하이에서 로우로 천이가 발생한 것을 나타내는 제5단계와, 상태 천이 검출이 완료되면 다음 주기의 검출을 위해 상기 제1단계에서 저장된 데이타 중 전주기 이전의 라인 상태 유효 데이타를 논리 부정으로 갱신하는 제6단계로 구성됨을 특징으로 하는 가입자 라인 상태 천이 검출 방법.A subscriber line state transition detection method of an electronic switching system, comprising: A first step of reading the state of the subscriber line continuously every 8ms real-time period, and storing the line state data in a memory consisting of a queue structure, and the line state data of the full cycle of the data stored in the first step and the previous period Comparing the line state valid data with an exclusive OR, checking whether the state change has occurred and stopping if not, and comparing the logical state with the operation data determining the comparison value and the state transition when the state change occurs in the second step. A third step of checking whether or not a state change has occurred and stopping if not, and an exclusive logical agreement between the line state data of all cycles and the line state data of the current cycle among the data stored in the first stage when the state change occurs in the third stage. Compare to negative to see if a change in state has occurred. A fourth step of stopping the detection of the current line state by determining the state transition that occurred momentarily, and indicating that the state of the line is normally changed when the state change occurs in the fourth step, and the line state transition direction In order to determine that the value of the line state data of the full cycle of the data stored in the first step is 1 indicates that the line state transitions from low to high, and if the line state of the entire cycle is 0, the high A fifth step indicating that a transition has occurred to a row; and a sixth step of updating line state valid data before the full cycle among the data stored in the first step to a logical negation to detect a next period when the state transition is detected. Subscriber line state transition detection method. 제1항에 있어서, 잡음에 의한 상태 천이를 검출함으로써 가입자 라인에서 발생하는 잡음의 영향을 방지하도록 하는 단계를 더 포함하고 있는 것을 특징으로 하는 가입자 라인 상태 천이 검출 방법.2. The method of claim 1, further comprising the step of preventing the effect of noise occurring at the subscriber line by detecting a state transition due to noise. 제1항에 있어서, 정상적인 상태 천이가 발생한 경우 라인 상태 천이 방향을 결정하기 위하여 상기 제2단계에서 저장된 데이타 중 전주기의 라인 상태 데이타의 값을 조사하는 단계를 더 포함하고 있는 것을 특징으로 하는 가입자 라인 상태 천이 검출 방법.2. The subscriber station of claim 1, further comprising the step of examining the value of the line state data of the entire period of the data stored in the second step to determine the line state transition direction when a normal state transition occurs. Line state transition detection method. ※ 참고사항 : 최초출원내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019900022864A 1990-12-31 1990-12-31 Method of checking a state transfer of subscriber line in full-exchange KR930011357B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019900022864A KR930011357B1 (en) 1990-12-31 1990-12-31 Method of checking a state transfer of subscriber line in full-exchange

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019900022864A KR930011357B1 (en) 1990-12-31 1990-12-31 Method of checking a state transfer of subscriber line in full-exchange

Publications (2)

Publication Number Publication Date
KR920014308A true KR920014308A (en) 1992-07-30
KR930011357B1 KR930011357B1 (en) 1993-11-30

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KR1019900022864A KR930011357B1 (en) 1990-12-31 1990-12-31 Method of checking a state transfer of subscriber line in full-exchange

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000045640A (en) * 1998-12-30 2000-07-25 김영환 Subscriber interface of switching system and method for inspecting thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000045640A (en) * 1998-12-30 2000-07-25 김영환 Subscriber interface of switching system and method for inspecting thereof

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KR930011357B1 (en) 1993-11-30

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