KR100888945B1 - Ring topology optical transmission network system - Google Patents

Ring topology optical transmission network system Download PDF

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KR100888945B1
KR100888945B1 KR1020080094289A KR20080094289A KR100888945B1 KR 100888945 B1 KR100888945 B1 KR 100888945B1 KR 1020080094289 A KR1020080094289 A KR 1020080094289A KR 20080094289 A KR20080094289 A KR 20080094289A KR 100888945 B1 KR100888945 B1 KR 100888945B1
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optical
operating voltage
unit
signal processor
supply unit
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KR1020080094289A
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Korean (ko)
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박성영
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주식회사텔레맥스
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/03—Arrangements for fault recovery
    • H04B10/038—Arrangements for fault recovery using bypasses
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/25—Arrangements specific to fibre transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/27—Arrangements for networking
    • H04B10/275—Ring-type networks

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computing Systems (AREA)
  • Optical Communication System (AREA)
  • Small-Scale Networks (AREA)

Abstract

A ring type optical transmission network system having a transmission route switching unit separated from the corresponding optical transmission equipment from the network are provided to transmit data between the optical transmission equipment arranged in both sides of the optical transmission equipment in which failure occurs. A plurality of optical transmission equipments(10) is locally installed. A relay optical fiber(40) connects the optical transmission equipment interval. A signal processing unit is in the steady operation state. A controller forms a normal route. In case that the signal processing unit is in the failed state, a detour route is formed and the signal processing unit controls a path switching part.

Description

링형 광전송망시스템{Ring Topology Optical Transmission Network System}Ring Topology Optical Transmission Network System

도1은 본 발명의 실시예에 따른 링형 광전송망시스템의 구성도,1 is a block diagram of a ring optical transmission network system according to an embodiment of the present invention;

도2는 도1에 도시된 광전송장치의 기능별 블록도,FIG. 2 is a functional block diagram of the optical transmission device shown in FIG. 1;

도3은 도1에 도시된 광전송장치의 동작상태도,3 is an operational state diagram of the optical transmission device shown in FIG. 1;

도4는 종래의 링형 광전송망시스템의 구성도,4 is a block diagram of a conventional ring optical transmission network system;

도5는 도4에 도시된 광전송장치의 기능별 블록도,FIG. 5 is a functional block diagram of the optical transmission device shown in FIG. 4; FIG.

도6은 도5에 도시된 광전송장치의 동작상태도이다.6 is an operational state diagram of the optical transmission device shown in FIG.

* 도면의 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

10, 110 : 광전송장치 11, 111 : 광송신부10, 110: optical transmission device 11, 111: optical transmission unit

12, 112 : 광수신부 13, 113 : 신호처리부12, 112: optical receiver 13, 113: signal processor

14, 114 : 제어부 20, 120 : 경로절체부 14, 114: control unit 20, 120: path switching unit

21 : 송신절체릴레이 22 : 수신절체릴레이 21: Transmission switching relay 22: Reception switching relay

23 : 절체경로도선 24 : 릴레이구동회로 23: transfer path lead 24: relay drive circuit

30, 130 : 전원부 31, 131 : 메인동작전압공급부 30, 130: power supply unit 31, 131: main operating voltage supply unit

32, 132 : 예비동작전압공급부 33, 133 : 동작전압스위칭부32, 132: preliminary operating voltage supply unit 33, 133: operating voltage switching unit

40, 140 : 중계광섬유 41, 141 : 송신중계광섬유40, 140: relay optical fiber 41, 141: transmission relay optical fiber

42, 142 : 수신중계광섬유 121 : 송신절체광스위치42, 142: receiving relay optical fiber 121: transmission switching optical switch

122 : 수신절체광스위치 123 : 절체경로광섬유122: receiving switch optical switch 123: switching path optical fiber

124 : 광스위치구동회로124: optical switch drive circuit

본 발명은 링형 광전송망시스템에 관한 것으로서, 보다 상세하게는 전송의 광전송장치에 장애가 발생하는 경우 해당 광전송장치가 망으로부터 분리되도록 전송경로를 절체하는 수단을 갖는 링형 광전송망시스템에 관한 것이다.The present invention relates to a ring-type optical transmission network system, and more particularly, to a ring-type optical transmission network system having a means for switching the transmission path so that the optical transmission device is separated from the network when a transmission optical transmission device fails.

광대역성, 저손실성 등의 특성을 갖는 광전송망시스템이 널리 사용되고 있으며, 광전송망시스템의 망구성 형태로 광전송장치가 자신의 양측에서 각각 인접하는 한 쌍의 광전송장치와 점 대 점 연결(Point-Point Connection)이 이루는 링형 광전송망시스템이 안출되어 사용되고 있다.Optical transmission network systems with wide bandwidth and low loss characteristics are widely used, and in the form of the optical transmission network system, optical transmission devices have a point-to-point connection with a pair of optical transmission devices adjacent to both sides of each other (Point-Point). A ring optical transmission network system formed by a connection is devised and used.

이러한 링형 광전송망시스템에는 전송의 신뢰성을 확보하기 위해 광전송장치에 장애가 발생하는 경우 해당 광전송장치가 망으로부터 분리되도록 전송경로를 절체하는 수단이 마련되어 있다.The ring-shaped optical transmission network system is provided with a means for switching the transmission path so that the optical transmission device is separated from the network when a failure occurs in the optical transmission device to secure transmission reliability.

도4는 종래의 링형 광전송망시스템의 구성도이고, 도5는 도4에 도시된 광전송장치의 기능별 블록도이며, 도6은 도5에 도시된 광전송장치의 동작상태도이다.4 is a block diagram of a conventional ring-shaped optical transmission network system, FIG. 5 is a functional block diagram of the optical transmission device shown in FIG. 4, and FIG. 6 is an operation state diagram of the optical transmission device shown in FIG.

종래의 링형 광전송망시스템은, 이들 도면에 도시된 바와 같이, 지역적으로 분산 설치된 복수의 광전송장치(110)와, 광전송장치(110)와 협조하여 폐루프를 이루도록 광전송장치(110) 상호간을 연결하는 중계광섬유(140)를 갖고 있다.In the conventional ring-shaped optical transmission network system, as shown in these figures, the optical transmission apparatus 110 is connected to each other so as to form a closed loop in cooperation with the optical transmission apparatus 110 and a plurality of geographically distributed optical transmission apparatus 110. It has the relay optical fiber 140.

각 광전송장치(110)는 송신중계광섬유(141)에 연결된 송신절체광스위치(121)와 수신중계광섬유(142)에 연결된 수신절체광스위치(122)를 갖는 경로절체부(120)와, 송신절체광스위치(121)에 연결된 광송신부(111)와, 수신절체광스위치(122)에 연결된 광수신부(112)와, 입력단이 광수신부(112)에 연결되고 출력단이 광송신부(111)에 연결된 신호처리부(113)와, 광송신부(111), 광수신부(112), 송신절체광스위치(121), 수신절체광스위치(122) 및 신호처리부(113)에 동작전압을 공급하는 전원부(130)와, 신호처리부(113)의 신호처리동작을 제어하는 제어부(114)를 갖고 있다.Each optical transmission device 110 includes a path switching unit 120 having a transmission switching optical switch 121 connected to the transmission relay optical fiber 141 and a reception switching optical switch 122 connected to the reception relay optical fiber 142, and transmission transmission. The optical transmitter 111 connected to the optical switch 121, the optical receiver 112 connected to the receiving switch optical switch 122, the input terminal is connected to the optical receiver 112, and the output terminal is connected to the optical transmitter 111 A power supply unit 130 for supplying an operating voltage to the processing unit 113, the optical transmitter 111, the optical receiver 112, the transmission switching optical switch 121, the reception switching optical switch 122, and the signal processing unit 113; And a control unit 114 for controlling the signal processing operation of the signal processing unit 113.

경로절체부(120)는 수신절체광스위치(122)와 송신절체광스위치(121)에 더하여 수신절체광스위치(122)와 송신절체광스위치(121)를 연결하는 절체경로광섬유(123)와, 수신절체광스위치(122) 및 송신절체광스위치(121)와 전원부(130)사이에 개재된 광스위치구동회로(124)를 갖고 있다.The path switching unit 120 includes a switching path optical fiber 123 connecting the reception switching light switch 122 and the transmission switching light switch 121 in addition to the reception switching light switch 122 and the transmission switching light switch 121. The optical switch driving circuit 124 is interposed between the reception switching optical switch 122 and the transmission switching optical switch 121 and the power supply unit 130.

수신절체광스위치(122)는 광스위치구동회로(124)에 동작전압이 공급될 때 수신중계광섬유(142)를 절체경로광섬유(123)에 연결하도록 구현되어 있다.The reception switching optical switch 122 is implemented to connect the reception relay optical fiber 142 to the switching path optical fiber 123 when an operating voltage is supplied to the optical switch driving circuit 124.

송신절체광스위치(121)는 광스위치구동회로(124)에 동작전압이 공급될 때 송신중계광섬유(141)를 절체경로광섬유(123)에 연결하도록 구현되어 있다.The transmission switching optical switch 121 is implemented to connect the transmission relay optical fiber 141 to the switching path optical fiber 123 when an operating voltage is supplied to the optical switch driving circuit 124.

광송신부(111)는 종래 널리 알려진 바와 같이 전기신호를 광신호로 변환하는 레이져다이오드를 구비한 송신광모듈과 레이져다이오드구동회로를 갖고 있다.The optical transmitter 111 has a transmission optical module having a laser diode and a laser diode driving circuit which converts an electrical signal into an optical signal as is widely known in the art.

레이져다이오드는 송신절체광스위치(121)에 연결되어 있고, 레이져다이오드구동회로는 신호처리부(113)의 출력단에 연결되어 있다.The laser diode is connected to the transmission switching optical switch 121, and the laser diode driving circuit is connected to the output terminal of the signal processing unit 113.

광수신부(112)는 종래 널리 알려진 바와 같이 광신호를 전기신호로 변환하는 광검출기, 증폭기, 리타이밍회로 등을 갖고 있다.The light receiver 112 has a photodetector, an amplifier, a retiming circuit, and the like, which convert an optical signal into an electrical signal, as is widely known in the art.

광검출기는 수신절체광스위치(122)에 연결되어 있고, 리타이밍회로는 신호처리부(113)의 입력단에 연결되어 있다.The photodetector is connected to the reception switching optical switch 122, and the retiming circuit is connected to the input terminal of the signal processor 113.

신호처리부(113)는 종래 널리 알려진 바와 같이 신호레벨의 변환, 리프레이밍(REFRAMING), 데이터의 분기(DROP), 데이터의 추가(ADD), 프레이밍(FRAMING) 등의 신호처리동작을 수행한다.As is widely known, the signal processor 113 performs signal processing operations such as signal level conversion, reframing, branching of data, adding data, and framing.

전원부(130)는 광송신부(111), 광수신부(112), 신호처리부(113) 및 광스위치구동회로(124)에 각각 연결된 동작전압스위칭부(133)와, 동작전압스위칭부(133)에 병렬로 연결된 메인동작전압공급부(131) 및 예비동작전압공급부(132)를 갖고 있다.The power supply unit 130 is connected to the operating voltage switching unit 133 and the operating voltage switching unit 133 respectively connected to the optical transmitter 111, the optical receiver 112, the signal processor 113, and the optical switch driver circuit 124. It has a main operating voltage supply unit 131 and a preliminary operating voltage supply unit 132 connected in parallel.

동작전압스위칭부(133)는 광송신부(111), 광수신부(112), 신호처리부(113) 및 광스위치구동회로(124)와 메인동작전압공급부(131)사이의 전기적 연결을 온오프하기 위한 스위칭회로와, 광송신부(111), 광수신부(112), 신호처리부(113) 및 광스위치구동회로(124)와 예비동작전압공급부(132)사이의 전기적 연결을 온오프하기 위한 스위칭회로를 갖도록 구현되어 있다.The operating voltage switching unit 133 is for turning on and off the electrical connection between the optical transmitter 111, the optical receiver 112, the signal processor 113, and the optical switch driver circuit 124 and the main operating voltage supply unit 131. And a switching circuit and a switching circuit for turning on and off an electrical connection between the optical transmitter 111, the optical receiver 112, the signal processor 113, and the optical switch driver circuit 124 and the preliminary operating voltage supply unit 132. It is implemented.

그리고 제어부(114)는 신호처리부(113)의 동작상태를 판단하고, 그 판단결과에 따라 다음과 같이 경로절체부(120)를 제어한다.The controller 114 determines the operation state of the signal processor 113, and controls the path switching unit 120 as follows according to the determination result.

즉, 신호처리부(113)가 정상동작상태에 있는 경우 수신절체광스위치(122)와 송신절체광스위치(121)에 동작전압이 공급되지 않도록 광스위치구동회로(124)를 제어한다. 이에 따라 수신중계광섬유(142)가 수신절체광스위치(122)를 통해 광수신 부(112)에 연결되고 송신중계광섬유(141)가 송신절체광스위치(121)를 통해 광송신부(111)에 연결되는 정상경로가 설정된다.That is, when the signal processing unit 113 is in the normal operating state, the optical switch driving circuit 124 is controlled so that the operating voltage is not supplied to the reception switching optical switch 122 and the transmission switching optical switch 121. Accordingly, the receiving relay optical fiber 142 is connected to the optical receiving unit 112 through the receiving switch optical switch 122 and the transmitting relay optical fiber 141 is connected to the optical transmitting unit 111 through the transmitting switching optical switch 121. The normal path is set.

한편 신호처리부(113)가 이상동작상태에 있는 경우 제어부(114)는 수신절체광스위치(122)와 송신절체광스위치(121)에 동작전압이 공급되도록 광스위치구동회로(124)를 제어한다. 광스위치구동회로(124)를 통해 수신절체광스위치(122)와 송신절체광스위치(121)에 동작전압이 공급되면 수신중계광섬유(142)와 송신중계광섬유(141)가 수신절체광스위치(122), 절체경로광섬유(123) 및 송신절체광스위치(121)를 통해 연결되는 우회경로가 설정된다(도6 참조).On the other hand, when the signal processing unit 113 is in an abnormal operation state, the control unit 114 controls the optical switch driving circuit 124 so that an operating voltage is supplied to the reception switching optical switch 122 and the transmission switching optical switch 121. When the operating voltage is supplied to the reception switching optical switch 122 and the transmission switching optical switch 121 through the optical switch driving circuit 124, the reception relay optical fiber 142 and the transmission relay optical fiber 141 receive the reception switching optical switch 122 ), A bypass path connected through the transfer path optical fiber 123 and the transmission transfer optical switch 121 is set (see FIG. 6).

또한 제어부(114)는 메인동작전압공급부(131)로부터 동작전압이 정상적으로 공급되고 있는 지 여부를 판단하고, 그 판단결과에 따라 다음과 같이 동작전압스위칭부(133)를 제어한다.In addition, the controller 114 determines whether the operation voltage is normally supplied from the main operation voltage supply unit 131, and controls the operation voltage switching unit 133 as follows according to the determination result.

즉, 메인동작전압공급부(131)로부터 동작전압이 정상적으로 공급되고 있는 경우 광송신부(111), 광수신부(112), 신호처리부(113) 및 광스위치구동회로(124)와 메인동작전압공급부(131)사이의 전기적 연결이 각각 온상태가 되도록 동작전압스위칭부(133)를 제어한다.That is, when the operating voltage is normally supplied from the main operating voltage supply unit 131, the optical transmitter 111, the optical receiver 112, the signal processor 113, the optical switch driver circuit 124, and the main operating voltage supply unit 131. The operating voltage switching unit 133 is controlled so that the electrical connection between the respective states is turned on.

한편 메인동작전압공급부(131)로부터 동작전압이 정상적으로 공급되지 않는 경우 광송신부(111), 광수신부(112), 신호처리부(113) 및 광스위치구동회로(124)와 예비동작전압공급부(132)사이의 전기적 연결이 각각 온상태가 되도록 동작전압스위칭부(133)를 제어한다.On the other hand, when the operating voltage is not normally supplied from the main operating voltage supply unit 131, the optical transmitter 111, the optical receiver 112, the signal processor 113, the optical switch driver circuit 124 and the preliminary operating voltage supply unit 132 The operating voltage switching unit 133 is controlled so that the electrical connection therebetween is turned on.

중계광섬유(140)는 각 광전송장치(110)의 송신절체광스위치(121)에 연결된 송신중계광섬유(141)와, 각 광전송장치(110)의 수신절체광스위치(122)에 연결된 수신중계광섬유(142)로 구분되어 있다.The relay optical fiber 140 is a transmission relay optical fiber 141 connected to the transmission switching optical switch 121 of each optical transmission device 110, and a reception relay optical fiber (connected to the reception switching optical switch 122 of each optical transmission device 110) 142).

이러한 구성을 갖는 종래의 링형 광전송망시스템의 동작을 설명하면 다음과 같다.Referring to the operation of the conventional ring-shaped optical transmission network system having such a configuration as follows.

메인동작전압공급부(131)로부터 동작전압이 정상적으로 공급되고 있는 경우 메인동작전압공급부(131)를 통해 광송신부(111), 광수신부(112), 신호처리부(113) 및 광스위치구동회로(124)에 동작전압이 공급된다.When the operating voltage is normally supplied from the main operating voltage supplying unit 131, the optical transmitting unit 111, the optical receiving unit 112, the signal processing unit 113, and the optical switch driving circuit 124 through the main operating voltage supplying unit 131. Is supplied to the operating voltage.

메인동작전압공급부(131)로부터 동작전압이 정상적으로 공급되지 않는 경우 예비동작전압공급부(132)를 통해 광송신부(111), 광수신부(112), 신호처리부(113) 및 광스위치구동회로(124)에 동작전압이 공급된다.When the operating voltage is not normally supplied from the main operating voltage supplying unit 131, the optical transmitting unit 111, the optical receiving unit 112, the signal processing unit 113, and the optical switch driving circuit 124 through the preliminary operating voltage supplying unit 132. Is supplied to the operating voltage.

신호처리부(113)가 정상동작상태에 있는 경우 수신중계광섬유(142)가 수신절체광스위치(122)를 통해 광수신부(112)에 연결되고 송신중계광섬유(141)가 송신절체광스위치(121)를 통해 광송신부(111)에 연결되는 정상경로를 통해 데이터가 전송된다.When the signal processing unit 113 is in the normal operating state, the receiving relay optical fiber 142 is connected to the light receiving unit 112 through the receiving switching optical switch 122, and the transmitting relay optical fiber 141 is the transmitting switching optical switch 121. Data is transmitted through the normal path connected to the optical transmitter 111 through.

신호처리부(113)가 이상동작상태에 있는 경우 수신중계광섬유(142)와 송신중계광섬유(141)가 수신절체광스위치(122), 절체경로광섬유(123) 및 송신절체광스위치(121)를 통해 연결되는 우회경로를 통해 데이터가 전송된다.When the signal processing unit 113 is in an abnormal operation state, the reception relay optical fiber 142 and the transmission relay optical fiber 141 are provided through the reception switching optical switch 122, the switching path optical fiber 123, and the transmission switching optical switch 121. Data is transmitted through the bypass route.

그런데 종래의 링형 광전송망시스템에 따르면, 송신절체광스위치(121)와 수신절체광스위치(122)의 절체동작시 장애가 발생한 광전송장치의 광송신부와 광수신부도 함께 망으로부터 분리되어 장애가 발생한 광전송장치의 양측에 배치된 광전송 장치사이의 중계광섬유구간(장애가 발생한 광전송장치의 일측에 배치된 광전송장치의 광송신부와 장애가 발생한 광전송장치의 타측에 배치된 광전송장치의 광수신부사이의 전송거리)이 증가하기 때문에 장애가 발생한 광전송장치의 양측에 배치된 광전송장치사이의 데이터전송이 안정적으로 이루어질 수 없다는 문제점이 있었다.However, according to the conventional ring-shaped optical transmission network system, the optical transmission unit and the optical reception unit of the optical transmission device that failed during the transfer operation of the transmission switching optical switch 121 and the reception switching optical switch 122 are also separated from the network together, Since the relay optical fiber section between the optical transmission devices arranged on both sides (the transmission distance between the optical transmission part of the optical transmission device disposed on one side of the failed optical transmission device and the optical reception unit of the optical transmission device disposed on the other side of the failed optical transmission device) increases. There was a problem that data transmission between optical transmission devices disposed on both sides of a failed optical transmission device could not be made stably.

그리고 중계광섬유(140)에 직접 연결된 송신절체광스위치(121)와 수신절체광스위치(122)를 통해 장애가 발생한 광전송장치가 망으로부터 분리되도록 전송경로를 절체하고 있기 때문에 송신절체광스위치(121)와 수신절체광스위치(122)에서 발생하는 광손실(광스위치에는 광섬유의 접속개소가 존재함)이 광전송경로손실에 더해져 장애가 발생한 광전송장치의 양측에 배치된 광전송장치사이의 데이터전송이 안정적으로 이루어 질 수 없다는 문제점이 있었다.The transmission switching optical switch 121 and the transmission switching optical switch 121 and the transmission switching optical switch 122 directly connected to the relay optical fiber 140 are switched to the transmission path so that the optical transmission device having a failure is separated from the network. The optical loss generated by the reception switching optical switch 122 (the optical switch has a connection point of the optical fiber) is added to the optical transmission path loss, so that data transmission between the optical transmission devices disposed on both sides of the failed optical transmission device can be made stable. There was a problem that can not.

또한 고가인 송신절체광스위치(121)와 수신절체광스위치(122)를 통해 장애가 발생한 광전송장치가 망으로부터 분리되도록 전송경로를 절체하고 있기 때문에 망구축비용이 증가한다는 문제점이 있었다.In addition, since the transmission path is switched to separate the faulty optical transmission device from the network through the expensive transmission switching optical switch 121 and the reception switching optical switch 122, there is a problem that the network construction cost increases.

또한 신호처리부(113)의 동작상태와 관계없이 메인동작전압공급부(131)와 예비동작전압공급부(132)중 어느 일방으로부터 신호처리부(113)에 동작전압이 공급되기 때문에 소비전력이 증가한다는 문제점이 있었다. In addition, since the operating voltage is supplied to the signal processing unit 113 from one of the main operating voltage supply unit 131 and the preliminary operating voltage supply unit 132 regardless of the operation state of the signal processing unit 113, the power consumption increases. there was.

전술한 문제점들은 광전송이 양방향으로 이루어지는 이중링 형태의 광전송망시스템의 경우도 동일하게 발생한다.The above-described problems occur in the case of a double ring type optical transmission network system in which optical transmission is bidirectional.

따라서 본 발명의 목적은, 장애가 발생한 광전송장치의 양측에 배치된 광전 송장치사이의 데이터전송이 안정적으로 이루어 질 수 있고 망구축비용을 감소시킬 수 있는 경로절체수단을 갖는 링형 광전송망시스템을 제공하는 것이다.Accordingly, an object of the present invention is to provide a ring-type optical transmission network system having a path switching means capable of stably transmitting data between the optical transmission devices arranged on both sides of a failed optical transmission device and reducing network construction costs. will be.

상기 목적은, 본 발명에 따라, 지역적으로 분산 설치되고, 각각 전기신호를 광신호로 변환하는 광송신부와 광신호를 전기신호로 변환하는 광수신부와 상기 광수신부로부터 입력되는 전기신호를 처리하여 상기 광송신부로 전송하는 신호처리부와 상기 신호처리부의 신호처리동작을 제어하는 제어부와 상기 광송신부, 상기 광수신부, 상기 신호처리부 및 상기 제어부에 동작전압을 공급하는 전원부를 갖는 복수의 광전송장치와, 상기 광전송장치와 협조하여 폐루프를 이루도록 상기 각 광전송장치의 광송신부와 인접하는 광전송장치의 광수신부를 연결하는 중계광섬유를 갖는 링형 광전송망시스템에 있어서, 상기 각 광전송장치는 상기 광수신부와 상기 신호처리부사이 및 상기 광송신부와 상기 신호처리부사이가 전기적으로 연결되는 정상경로와 상기 광수신부와 상기 광송신부사이가 전기적으로 연결되는 우회경로를 선택적으로 형성하는 경로절체부를 포함하고; 상기 제어부는 상기 신호처리부의 정상동작상태에서 상기 정상경로가 형성되고 상기 신호처리부의 고장상태에서 상기 우회경로가 형성되도록 상기 경로절체부를 제어하는 것을 특징으로 하는 링형 광전송망시스템에 의해 달성된다.The object is, according to the present invention, distributed locally, each of which comprises an optical transmitter for converting an electrical signal into an optical signal, and an optical receiver for converting an optical signal into an electrical signal and an electrical signal input from the optical receiver. A plurality of optical transmitters including a signal processor for transmitting to an optical transmitter, a controller for controlling a signal processing operation of the signal processor, a power transmitter for supplying an operating voltage to the optical transmitter, the optical receiver, the signal processor, and the controller; A ring type optical transmission network system having a relay optical fiber connecting an optical transmitter of an optical transmitter and an optical receiver of an adjacent optical transmitter to cooperate with an optical transmitter to form a closed loop, wherein each optical transmitter is the optical receiver and the signal processor. And a normal path between the optical transmitter and the signal processor to be electrically connected therebetween. And it includes light reception portion is between the light transmission path to selectively form a bypass path that is electrically connected to the switching; The control unit is achieved by a ring-shaped optical transmission network system, characterized in that for controlling the path switching unit so that the normal path is formed in the normal operation state of the signal processing unit and the bypass path is formed in the failure state of the signal processing unit.

여기서 소비전력을 감소시킬 수 있도록, 상용전압을 이용하여 상기 광송신부, 상기 광수신부, 상기 신호처리부 및 상기 경로절체부의 동작전압을 생성하는 메인동작전압공급부와, 배터리전압을 이용하여 상기 광송신부, 상기 광수신부, 상 기 신호처리부 및 상기 경로절체부의 동작전압을 생성하는 예비동작전압공급부와, 상기 광송신부, 상기 광수신부, 상기 신호처리부 및 상기 경로절체부에 연결되어 있고 상기 광송신부, 상기 광수신부, 상기 신호처리부 및 상기 경로절체부와 상기 메인동작전압공급부사이의 전기적 연결을 온오프하기 위한 스위칭회로와 상기 광송신부, 상기 광수신부, 상기 신호처리부 및 상기 경로절체부와 상기 예비동작전압공급부사이의 전기적 연결을 온오프하기 위한 스위칭회로를 구비한 동작전압스위칭부를 갖는 전원부를 더 포함하고; 상기 제어부는 상기 메인동작전압공급부로부터 동작전압이 정상적으로 공급되고 있는 지 여부를 판단하고, 그 판단결과 상기 신호처리부가 정상동작상태에 있고 상기 메인동작전압공급부로부터 동작전압이 정상적으로 공급되고 있는 경우 상기 광송신부, 상기 광수신부, 상기 신호처리부 및 상기 경로절체부와 상기 메인동작전압공급부사이의 전기적 연결이 각각 온상태가 되도록 상기 동작전압스위칭부를 제어하고, 상기 신호처리부가 정상동작상태에 있고 상기 메인동작전압공급부로부터 동작전압이 정상적으로 공급되지 않는 경우 상기 광송신부, 상기 광수신부, 상기 신호처리부 및 상기 경로절체부와 상기 예비동작전압공급부사이의 전기적 연결이 각각 온상태가 되도록 상기 동작전압스위칭부를 제어하며, 상기 신호처리부가 이상동작상태에 있고 상기 메인동작전압공급부로부터 동작전압이 정상적으로 공급되는 경우 상기 광송신부, 상기 광수신부 및 상기 경로절체부와 상기 메인동작전압공급부사이의 전기적 연결이 각각 온상태가 되도록 상기 동작전압스위칭부를 제어하며, 상기 신호처리부가 이상동작상태에 있고 상기 메인동작전압공급부로부터 동작전압이 정상적으로 공급되지 않는 경우 상기 광송신부, 상기 광수신부 및 상기 경로절체부와 상기 예비동작전압공급부사이의 전기적 연결이 각각 온상태가 되도록 상기 동작전압스위칭부를 제어하도록 구성하는 것이 바람직하다.The main operating voltage supply unit generates an operating voltage of the optical transmitter, the optical receiver, the signal processor, and the path switching unit using a commercial voltage to reduce power consumption, the optical transmitter using a battery voltage, A preliminary operation voltage supply unit for generating an operating voltage of the optical receiver, the signal processor, and the path switching unit; and an optical transmitter, the optical receiver, the signal processor, and the path switching unit, and are connected to the optical transmitter, the optical receiver. A switching circuit for turning on and off an electrical connection between the signal processor, the signal processor, and the path switching unit and the main operating voltage supply unit, the optical transmitter, the optical receiver, the signal processor, the path switching unit, and the preliminary operating voltage supply unit. Power supply unit with an operating voltage switching unit having a switching circuit for turning on and off the electrical connection between And further comprising; The controller determines whether the operating voltage is normally supplied from the main operating voltage supplier, and as a result of the determination, when the signal processor is in a normal operating state and the operating voltage is normally supplied from the main operating voltage supplier. The operating voltage switching unit is controlled so that an electrical connection between the transmitter, the optical receiver, the signal processor, and the path switching unit and the main operating voltage supply unit is turned on, respectively, and the signal processor is in a normal operating state and the main operation is performed. When the operating voltage is not normally supplied from the voltage supply unit, the operation voltage switching unit is controlled so that the electrical connection between the optical transmitter, the optical receiver, the signal processor, and the path switching unit and the preliminary operation voltage supply unit is turned on. The signal processor is in an abnormal operation state. And when the operating voltage is normally supplied from the main operating voltage supply unit, controls the operating voltage switching unit so that the electrical connection between the optical transmitter, the optical receiver, and the path switching unit and the main operating voltage supply unit is turned on. When the signal processing unit is in an abnormal operation state and the operating voltage is not normally supplied from the main operating voltage supply unit, the electrical connection between the optical transmitter, the optical receiver, and the path switching unit and the preliminary operating voltage supply unit is turned on. Preferably, the operating voltage switching unit is configured to control the operating voltage switching unit.

이하에서, 첨부도면을 참조하여 본 발명을 상세히 설명하기로 한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도1은 본 발명의 실시예에 따른 링형 광전송망시스템의 구성도이고, 도2는 도1에 도시된 광전송장치의 기능별 블록도이며, 도3은 도1에 도시된 광전송장치의 동작상태도이다.1 is a block diagram of a ring-shaped optical transmission network system according to an embodiment of the present invention, Figure 2 is a functional block diagram of the optical transmission device shown in Figure 1, Figure 3 is an operational state diagram of the optical transmission device shown in FIG.

본 발명의 실시예에 따른 링형 광전송망시스템은, 이들 도면에 도시된 바와 같이, 지역적으로 분산 설치된 복수의 광전송장치(10)와, 광전송장치(10)와 협조하여 폐루프를 이루도록 광전송장치(10) 상호간을 연결하는 중계광섬유(40)를 갖고 있다.In the ring-shaped optical transmission network system according to the embodiment of the present invention, as shown in these figures, the optical transmission apparatus 10 to form a closed loop in cooperation with the plurality of optical transmission apparatuses 10 and the optical transmission apparatus 10 which are locally distributed. ) Relay optical fibers 40 are connected to each other.

각 광전송장치(10)는 송신중계광섬유(41)에 연결된 광송신부(11)와, 수신중계광섬유(42)에 연결된 광수신부(12)와, 광송신부(11)에 연결된 송신절체릴레이(21)와 광수신부(12)에 연결된 수신절체릴레이(22)를 갖는 경로절체부(20)와, 입력단이 수신절체릴레이(22)에 연결되고 출력단이 송신절체릴레이(21)에 연결된 신호처리부(13)와, 광송신부(11), 광수신부(12), 송신절체릴레이(21), 수신절체릴레이(22) 및 신호처리부(13)에 동작전압을 공급하는 전원부(30)와, 신호처리부(13)의 신호처리동작을 제어하는 제어부(14)를 갖고 있다.Each optical transmission device 10 includes an optical transmitter 11 connected to the transmission relay optical fiber 41, an optical receiver 12 connected to the reception relay optical fiber 42, and a transmission switching relay 21 connected to the optical transmitter 11. And a path switching unit 20 having a reception switching relay 22 connected to the optical reception unit 12, and a signal processing unit 13 having an input terminal connected to the reception switching relay 22 and an output terminal connected to the transmission switching relay 21. And a power supply unit 30 for supplying an operating voltage to the optical transmitter 11, the optical receiver 12, the transmission switching relay 21, the reception switching relay 22, and the signal processing unit 13, and the signal processing unit 13. And a control unit 14 for controlling the signal processing operation.

광송신부(11)는 종래 널리 알려진 바와 같이 전기신호를 광신호로 변환하는 레이져다이오드를 구비한 송신광모듈과 레이져다이오드구동회로를 갖고 있다.The optical transmitter 11 has a transmission optical module and a laser diode driving circuit having a laser diode for converting an electric signal into an optical signal as is widely known in the art.

레이져다이오드는 송신중계광섬유(41)에 연결되어 있고, 레이져다이오드구동회로는 송신절체릴레이(21)를 통해 신호처리부(13)의 출력단에 연결되어 있다.The laser diode is connected to the transmission relay optical fiber 41, and the laser diode driving circuit is connected to the output terminal of the signal processing unit 13 through the transmission switching relay 21.

광수신부(12)는 종래 널리 알려진 바와 같이 광신호를 전기신호로 변환하는 광검출기, 증폭기, 리타이밍회로 등을 갖고 있다.The optical receiver 12 has a photodetector, an amplifier, a retiming circuit, and the like, which convert an optical signal into an electrical signal, as is widely known in the art.

광검출기는 수신중계광섬유(42)에 연결되어 있고, 리타이밍회로는 수신절체릴레이(22)를 통해 신호처리부(13)의 입력단에 연결되어 있다.The photodetector is connected to the receiving relay optical fiber 42, and the retiming circuit is connected to the input terminal of the signal processing unit 13 through the receiving switching relay 22.

신호처리부(13)는 종래 널리 알려진 바와 같이 신호레벨의 변환, 리프레이밍(REFRAMING), 데이터의 분기(DROP), 데이터의 추가(ADD), 프레이밍(FRAMING) 등의 신호처리동작을 수행한다.As is widely known, the signal processor 13 performs signal processing operations such as signal level conversion, reframing, branching of data, adding data, and framing.

경로절체부(20)는 수신절체릴레이(22)와 송신절체릴레이(21)에 더하여 수신절체릴레이(22)와 송신절체릴레이(21)를 연결하는 절체경로도선(23)과, 수신절체릴레이(22)와 송신절체릴레이(21)와 전원부(30)사이에 개재된 릴레이구동회로(24)를 갖고 있다.In addition to the reception switching relay 22 and the transmission switching relay 21, the path switching unit 20 includes a switching path lead 23 connecting the reception switching relay 22 and the transmission switching relay 21, and a reception switching relay ( 22) and a relay drive circuit 24 interposed between the transmission switching relay 21 and the power supply unit 30.

수신절체릴레이(22)는 공통단자, 상시개방(Normal Open)상태의 A접점단자 및 상시폐쇄(Normal Close)상태의 B접점단자를 갖고 있다.The reception switching relay 22 has a common terminal, an A contact terminal in a normally open state, and a B contact terminal in a normally closed state.

수신절체릴레이(22)의 공통단자는 광수신부(12)에 연결되어 있고, 수신절체릴레이(22)의 B접점단자는 신호처리부(13)에 연결되어 있다.The common terminal of the reception switching relay 22 is connected to the optical receiver 12, and the B contact terminal of the reception switching relay 22 is connected to the signal processing unit 13.

송신절체릴레이(21)는 공통단자, 상시개방(Normal Open)상태의 A접점단자 및 상시폐쇄(Normal Close)상태의 B접점단자를 갖고 있다.The transmission switching relay 21 has a common terminal, an A contact terminal in a normally open state, and a B contact terminal in a normally closed state.

송신절체릴레이(21)의 공통단자는 광송신부(11)에 연결되어 있고, 송신절체 릴레이(21)의 B접점단자는 신호처리부(13)에 연결되어 있다.The common terminal of the transmission switching relay 21 is connected to the optical transmission unit 11, and the B contact terminal of the transmission switching relay 21 is connected to the signal processing unit 13.

절체경로도선(23)은 양단이 각각 수신절체릴레이(22)의 A접점단자와 송신절체릴레이(21)의 A접점단자에 연결하고 있다.Both ends of the switching path lead 23 are connected to the A contact terminal of the reception switching relay 22 and the A contact terminal of the transmission switching relay 21, respectively.

전원부(30)는 광송신부(11), 광수신부(12), 신호처리부(13) 및 릴레이구동회로(24)에 각각 연결된 동작전압스위칭부(33)와, 동작전압스위칭부(33)에 병렬로 연결된 메인동작전압공급부(31) 및 예비동작전압공급부(32)를 갖고 있다.The power supply unit 30 is parallel to the operating voltage switching unit 33 and the operating voltage switching unit 33 respectively connected to the optical transmitter 11, the optical receiver 12, the signal processor 13, and the relay driver circuit 24. The main operating voltage supply unit 31 and the preliminary operating voltage supply unit 32 are connected to each other.

동작전압스위칭부(33)는 광송신부(11), 광수신부(12), 신호처리부(13) 및 릴레이구동회로(24)와 메인동작전압공급부(31)사이의 전기적 연결을 온오프하기 위한 스위칭회로와, 광송신부(11), 광수신부(12), 신호처리부(13) 및 릴레이구동회로(24)와 예비동작전압공급부(32)사이의 전기적 연결을 온오프하기 위한 스위칭회로를 갖도록 구현되어 있다.The operating voltage switching unit 33 is a switch for turning on and off the electrical connection between the optical transmitter 11, the optical receiver 12, the signal processor 13, and the relay driver circuit 24 and the main operating voltage supply unit 31. And a switching circuit for turning on and off an electrical connection between the optical transmitter 11, the optical receiver 12, the signal processor 13, and the relay driver circuit 24 and the preliminary operating voltage supply unit 32. have.

메인동작전압공급부(31)는 상용전압을 이용하여 광송신부(11), 광수신부(12) 및 신호처리부(13), 수신절체릴레이(22) 및 송신절체릴레이(21)의 동작전압을 생성한다.The main operating voltage supply unit 31 generates the operating voltages of the optical transmitter 11, the optical receiver 12 and the signal processor 13, the reception switch relay 22 and the transmission switch relay 21 using the commercial voltage. .

예비동작전압공급부(32)는 배터리전압을 이용하여 광송신부(11), 광수신부(12), 신호처리부(13), 수신절체릴레이(22) 및 송신절체릴레이(21)의 동작전압을 생성하도록 구현되어 있다. 여기서 배터리전압은 종래 널리 알려진 바와 같은 방법으로 평상시(상용전압이 메인동작전압공급부에 입력될 때) 메인동작전압공급부(31)를 통해 충전되도록 구현할 수 있다.The preliminary operating voltage supply unit 32 generates an operating voltage of the optical transmitter 11, the optical receiver 12, the signal processor 13, the reception switch relay 22 and the transmission switch relay 21 using the battery voltage. It is implemented. Herein, the battery voltage may be implemented to be charged through the main operating voltage supply unit 31 in a usual manner (when a commercial voltage is input to the main operating voltage supply unit) in a conventionally known manner.

제어부(14)는 신호처리부(13)의 신호처리동작을 제어한다.The controller 14 controls the signal processing operation of the signal processor 13.

그리고 제어부(14)는 신호처리부(13)의 동작상태를 판단하고, 그 판단결과에 따라 다음과 같이 경로절체부(20)를 제어한다.The controller 14 determines the operation state of the signal processor 13 and controls the path switching unit 20 as follows according to the determination result.

즉, 신호처리부(13)가 정상동작상태에 있는 경우 수신절체릴레이(22)와 송신절체릴레이(21)에 동작전압이 공급되지 않도록 릴레이구동회로(24)를 제어한다. 이에 따라 수신절체릴레이(22)와 송신절체릴레이(21)의 공통단자는 각각 B접점단자에 연결되어 광수신부(12)와 신호처리부(13)사이 및 광송신부(11)와 신호처리부(13)사이가 전기적으로 연결되는 정상경로가 설정된다.That is, when the signal processing unit 13 is in the normal operation state, the relay drive circuit 24 is controlled so that the operating voltage is not supplied to the reception switching relay 22 and the transmission switching relay 21. Accordingly, the common terminals of the reception switching relay 22 and the transmission switching relay 21 are connected to the B contact terminals, respectively, between the optical reception unit 12 and the signal processing unit 13 and between the optical transmission unit 11 and the signal processing unit 13. The normal path between which the electrical connection is made is established.

한편 신호처리부(13)가 이상동작상태에 있는 경우 수신절체릴레이(22)와 송신절체릴레이(21)에 동작전압이 공급되도록 릴레이구동회로(24)를 제어한다.On the other hand, when the signal processing unit 13 is in an abnormal operation state, the relay drive circuit 24 is controlled so that an operating voltage is supplied to the reception switching relay 22 and the transmission switching relay 21.

릴레이구동회로(24)를 통해 수신절체릴레이(22)와 송신절체릴레이(21)에 동작전압이 공급되면 수신절체릴레이(22)와 송신절체릴레이(21)의 공통단자는 각각 A접점단자에 연결된다. 이에 따라 광수신부(12)와 광송신부(11)가 절체경로도선(23)을 통해 전기적으로 연결되는 우회경로가 설정된다(도3 참조).When the operating voltage is supplied to the reception switching relay 22 and the transmission switching relay 21 through the relay drive circuit 24, the common terminals of the reception switching relay 22 and the transmission switching relay 21 are connected to the A contact terminal, respectively. do. As a result, a bypass path is electrically connected between the light receiver 12 and the light transmitter 11 through the transfer path lead 23 (see FIG. 3).

또한 제어부(14)는 메인동작전압공급부(31)로부터 동작전압이 정상적으로 공급되고 있는 지 여부를 판단하고, 그 판단결과에 따라 다음과 같이 동작전압스위칭부(33)를 제어한다.In addition, the control unit 14 determines whether the operating voltage is normally supplied from the main operating voltage supply unit 31, and controls the operating voltage switching unit 33 as follows according to the determination result.

즉, 신호처리부(13)가 정상동작상태에 있고 메인동작전압공급부(31)로부터 동작전압이 정상적으로 공급되고 있는 경우 광송신부(11), 광수신부(12), 신호처리부(13) 및 릴레이구동회로(24)와 메인동작전압공급부(31)사이의 전기적 연결이 각각 온상태가 되도록 동작전압스위칭부(33)를 제어한다.That is, when the signal processor 13 is in a normal operating state and the operating voltage is normally supplied from the main operating voltage supply unit 31, the optical transmitter 11, the optical receiver 12, the signal processor 13, and the relay driver circuit. The operating voltage switching unit 33 is controlled so that the electrical connection between the 24 and the main operating voltage supply unit 31 is turned on, respectively.

한편 신호처리부(13)가 정상동작상태에 있고 메인동작전압공급부(31)로부터 동작전압이 정상적으로 공급되지 않는 경우 광송신부(11), 광수신부(12), 신호처리부(13) 및 릴레이구동회로(24)와 예비동작전압공급부(32)사이의 전기적 연결이 각각 온상태가 되도록 동작전압스위칭부(33)를 제어한다.On the other hand, when the signal processor 13 is in the normal operating state and the operating voltage is not normally supplied from the main operating voltage supply unit 31, the optical transmitter 11, the optical receiver 12, the signal processor 13 and the relay driver circuit ( The operating voltage switching unit 33 is controlled so that the electrical connection between the 24 and the preliminary operating voltage supply unit 32 is turned on, respectively.

신호처리부(13)가 이상동작상태에 있고 메인동작전압공급부(31)로부터 동작전압이 정상적으로 공급되는 경우 광송신부(11), 광수신부(12) 및 릴레이구동회로(24)와 메인동작전압공급부(31)사이의 전기적 연결이 각각 온상태가 되도록 동작전압스위칭부(33)를 제어한다(도3 참조).When the signal processor 13 is in an abnormal operation state and the operating voltage is normally supplied from the main operating voltage supply unit 31, the optical transmitter 11, the optical receiver 12, the relay driver circuit 24, and the main operating voltage supply unit ( The operating voltage switching unit 33 is controlled so that the electrical connection between the terminals 31 is turned on (see FIG. 3).

신호처리부(13)가 이상동작상태에 있고 메인동작전압공급부(31)로부터 동작전압이 정상적으로 공급되지 않는 경우 광송신부(11), 광수신부(12) 및 릴레이구동회로(24)와 예비동작전압공급부(32)사이의 전기적 연결이 각각 온상태가 되도록 동작전압스위칭부(33)를 제어한다.When the signal processor 13 is in an abnormal operation state and the operating voltage is not normally supplied from the main operating voltage supply unit 31, the optical transmitter 11, the optical receiver 12, the relay driver circuit 24, and the preliminary operating voltage supply unit. The operating voltage switching section 33 is controlled so that the electrical connections between the 32 are turned on, respectively.

중계광섬유(40)는 각 광전송장치(10)의 광송신부(11)에 연결된 송신중계광섬유(41)와, 각 광전송장치(10)의 광수신부(12)에 연결된 수신중계광섬유(42)로 구분되어 있다. 이에 따라 각 광전송장치(10)의 광송신부(11)와 인접하는 광전송장치(10)의 광수신부(12)는 연결된다. The relay optical fiber 40 is divided into a transmission relay optical fiber 41 connected to the optical transmitter 11 of each optical transmission apparatus 10 and a reception relay optical fiber 42 connected to the optical receiver 12 of each optical transmission apparatus 10. It is. Accordingly, the optical transmitter 11 of each optical transmitter 10 and the optical receiver 12 of the adjacent optical transmitter 10 are connected.

이러한 구성을 갖는 본 발명의 실시예에 따른 링형 광전송망시스템의 동작을 설명하면 다음과 같다.Referring to the operation of the ring-shaped optical transmission network system according to an embodiment of the present invention having such a configuration as follows.

신호처리부(13)가 정상동작상태에 있고 메인동작전압공급부(31)로부터 동작전압이 정상적으로 공급되고 있는 경우 메인동작전압공급부(31)를 통해 광송신 부(11), 광수신부(12), 신호처리부(13) 및 릴레이구동회로(24)에 동작전압이 공급되고, 광수신부(12)와 신호처리부(13)사이 및 광송신부(11)와 신호처리부(13)사이가 전기적으로 연결되는 정상경로를 통해 데이터가 전송된다.When the signal processing unit 13 is in a normal operating state and the operating voltage is normally supplied from the main operating voltage supply unit 31, the optical transmitter 11, the optical receiver 12, and the signal through the main operating voltage supply unit 31. The operating path is supplied to the processing unit 13 and the relay driving circuit 24, and the normal path is electrically connected between the optical receiving unit 12 and the signal processing unit 13 and between the optical transmitting unit 11 and the signal processing unit 13. The data is transmitted via.

신호처리부(13)가 정상동작상태에 있고 메인동작전압공급부(31)로부터 동작전압이 정상적으로 공급되지 않는 경우 예비동작전압공급부(32)를 통해 광송신부(11), 광수신부(12), 신호처리부(13) 및 릴레이구동회로(24)에 동작전압이 공급되고, 광수신부(12)와 신호처리부(13)사이 및 광송신부(11)와 신호처리부(13)사이가 전기적으로 연결되는 정상경로를 통해 데이터가 전송된다.When the signal processing unit 13 is in a normal operating state and the operating voltage is not normally supplied from the main operating voltage supplying unit 31, the optical transmitter 11, the light receiving unit 12, and the signal processing unit through the preliminary operating voltage supplying unit 32. (13) and a normal path in which an operating voltage is supplied to the relay drive circuit 24 and electrically connected between the optical receiver 12 and the signal processor 13 and between the optical transmitter 11 and the signal processor 13; Data is transmitted via

신호처리부(13)가 이상동작상태에 있고 메인동작전압공급부(31)로부터 동작전압이 정상적으로 공급되는 경우 메인동작전압공급부(31)를 통해 광송신부(11), 광수신부(12), 송신절체릴레이(21) 및 수신절체릴레이(22)에 동작전압이 공급되고, 광수신부(12)와 광송신부(11)가 절체경로도선(23)을 통해 전기적으로 연결되는 우회경로를 통해 데이터가 전송된다.When the signal processing unit 13 is in an abnormal operation state and the operating voltage is normally supplied from the main operating voltage supply unit 31, the optical transmitter 11, the optical receiver 12, and the transmission switching relay through the main operating voltage supply unit 31. An operating voltage is supplied to the 21 and the reception switching relay 22, and data is transmitted through a bypass path in which the optical receiver 12 and the optical transmitter 11 are electrically connected through the transfer path lead 23.

신호처리부(13)가 이상동작상태에 있고 메인동작전압공급부(31)로부터 동작전압이 정상적으로 공급되지 않는 경우 예비동작전압공급부(32)를 통해 광송신부(11), 광수신부(12), 송신절체릴레이(21) 및 수신절체릴레이(22)에 동작전압이 공급되고, 광수신부(12)와 광송신부(11)가 절체경로도선(23)을 통해 전기적으로 연결되는 우회경로를 통해 데이터가 전송된다.When the signal processing unit 13 is in an abnormal operation state and the operating voltage is not normally supplied from the main operating voltage supply unit 31, the optical transmitter 11, the optical receiver 12, and the transmission switch through the preliminary operating voltage supply unit 32. The operating voltage is supplied to the relay 21 and the reception switching relay 22, and data is transmitted through a bypass path in which the optical receiver 12 and the optical transmitter 11 are electrically connected through the transfer path lead 23. .

상술한 바와 같이 본 발명의 실시예에 따르면, 송신절체릴레이(21)와 수신절체릴레이(122)의 절체동작시 장애발생 광전송장치의 광송신부와 광수신부가 망에 접속된 상태를 유지하도록 함으로써, 장애가 발생한 광전송장치의 양측에 배치된 광전송장치사이의 중계광섬유구간이 그대로 유지된다. 이에 따라 장애가 발생한 광전송장치의 양측에 배치된 광전송장치사이의 데이터전송이 안정적으로 이루어질 수 있게 된다.As described above, according to the embodiment of the present invention, the optical transmitter and the optical receiver of the faulty optical transmitter are maintained connected to the network during the transfer operation of the transmission switching relay 21 and the reception switching relay 122, The relay optical fiber section between the optical transmission devices arranged on both sides of the failed optical transmission device is maintained as it is. Accordingly, data transmission between the optical transmission devices disposed on both sides of the failed optical transmission device can be made stable.

그리고 전기신호형태 구간에 설치된 송신절체릴레이(21)와 수신절체릴레이(22)를 통해 전송경로를 절체함으로써 광전송장치의 장애시 광전송경로손실이 증가하는 것을 방지할 수 있다. 이에 따라 장애가 발생한 광전송장치의 양측에 배치된 광전송장치사이의 데이터전송이 안정적으로 이루어 질 수 있게 된다.In addition, by switching the transmission path through the transmission switching relay 21 and the reception switching relay 22 installed in the electrical signal type section, it is possible to prevent the optical transmission path loss from increasing in case of failure of the optical transmission device. Accordingly, data transmission between the optical transmission devices disposed on both sides of the failed optical transmission device can be made stable.

그리고 저가인 송신절체릴레이(21)와 수신절체릴레이(22)와 같은 전기스위칭부품을 통해 전송경로를 절체함으로써, 망구축비용을 감소시킬 수 있게 된다.And by switching the transmission path through the electrical switching components such as the low cost transmission switching relay 21 and the reception switching relay 22, it is possible to reduce the network construction cost.

또한 신호처리부(13)의 이상동작상태에서는 신호처리부(13)에 동작전압이 공급되지 않도록 함으로써 소비전력을 감소시킬 수 있게 된다.In addition, in the abnormal operation state of the signal processing unit 13, the power consumption can be reduced by preventing the operating voltage from being supplied to the signal processing unit 13.

전술한 효과는 광전송이 양방향으로 이루어지는 이중링 형태의 광전송망시스템의 경우도 동일하게 얻을 수 있다.The above effects can be obtained in the case of a double ring optical transmission network system in which optical transmission is bidirectional.

따라서 본 발명에 따르면, 광전송장치의 장애시 장애발생 광전송장치의 양측에 배치된 광전송장치사이의 중계광섬유구간이 그대로 유지되도록 함으로써, 장애가 발생한 광전송장치의 양측에 배치된 광전송장치사이의 데이터전송이 안정적으로 이루어 질 수 있다.Therefore, according to the present invention, when the optical transmission device fails, the relay optical fiber section between the optical transmission devices arranged on both sides of the failed optical transmission device is maintained as it is, so that the data transmission between the optical transmission devices arranged on both sides of the failed optical transmission device is stable. Can be done with.

그리고 저가인 전기스위칭부품을 통해 전송경로를 절체함으로써, 망구축비용 을 감소시킬 수 있다.And by switching transmission paths through low-cost electrical switching components, network construction costs can be reduced.

Claims (2)

지역적으로 분산 설치되고, 각각 전기신호를 광신호로 변환하는 광송신부와 광신호를 전기신호로 변환하는 광수신부와 상기 광수신부로부터 입력되는 전기신호를 처리하여 상기 광송신부로 전송하는 신호처리부와 상기 신호처리부의 신호처리동작을 제어하는 제어부와 상기 광송신부, 상기 광수신부, 상기 신호처리부 및 상기 제어부에 동작전압을 공급하는 전원부를 갖는 복수의 광전송장치와, 상기 광전송장치와 협조하여 폐루프를 이루도록 상기 각 광전송장치의 광송신부와 인접하는 광전송장치의 광수신부를 연결하는 중계광섬유를 갖는 링형 광전송망시스템에 있어서,It is distributed locally, respectively, an optical transmitter for converting an electrical signal into an optical signal, an optical receiver for converting an optical signal into an electrical signal, and a signal processor for processing and transmitting an electrical signal input from the optical receiver to the optical transmitter. A plurality of optical transmission devices having a control unit for controlling a signal processing operation of the signal processing unit, the optical transmitter, the optical receiver, the signal processor, and a power supply unit for supplying an operating voltage to the controller, and to cooperate with the optical transmitter to form a closed loop. In the ring optical transmission network system having a relay optical fiber connecting the optical transmission unit of each optical transmission device and the optical reception unit of the adjacent optical transmission device, 상기 각 광전송장치는 상기 광수신부와 상기 신호처리부사이 및 상기 광송신부와 상기 신호처리부사이가 전기적으로 연결되는 정상경로와 상기 광수신부와 상기 광송신부사이가 전기적으로 연결되는 우회경로를 선택적으로 형성하는 경로절체부를 포함하고; The optical transmission apparatus selectively forms a normal path electrically connected between the optical receiver and the signal processor and between the optical transmitter and the signal processor and a bypass path electrically connected between the optical receiver and the optical transmitter. A path changing part; 상기 제어부는 상기 신호처리부의 정상동작상태에서 상기 정상경로가 형성되고 상기 신호처리부의 고장상태에서 상기 우회경로가 형성되도록 상기 경로절체부를 제어하는 것을 특징으로 하는 링형 광전송망시스템.And the control unit controls the path switching unit such that the normal path is formed in the normal operation state of the signal processing unit and the bypass path is formed in the failure state of the signal processing unit. 제1항에 있어서,The method of claim 1, 상용전압을 이용하여 상기 광송신부, 상기 광수신부, 상기 신호처리부 및 상 기 경로절체부의 동작전압을 생성하는 메인동작전압공급부와, 배터리전압을 이용하여 상기 광송신부, 상기 광수신부, 상기 신호처리부 및 상기 경로절체부의 동작전압을 생성하는 예비동작전압공급부와, 상기 광송신부, 상기 광수신부, 상기 신호처리부 및 상기 경로절체부에 연결되어 있고 상기 광송신부, 상기 광수신부, 상기 신호처리부 및 상기 경로절체부와 상기 메인동작전압공급부사이의 전기적 연결을 온오프하기 위한 스위칭회로와 상기 광송신부, 상기 광수신부, 상기 신호처리부 및 상기 경로절체부와 상기 예비동작전압공급부사이의 전기적 연결을 온오프하기 위한 스위칭회로를 구비한 동작전압스위칭부를 갖는 전원부를 더 포함하고;A main operating voltage supply unit for generating an operating voltage of the optical transmitter, the optical receiver, the signal processor, and the path switching unit using a commercial voltage, the optical transmitter, the optical receiver, the signal processor, and the battery voltage; A preliminary operating voltage supply unit for generating an operation voltage of the path switching unit, the optical transmitter, the optical receiver, the signal processor, and the path switching unit, and are connected to the optical transmitter, the optical receiver, the signal processor, and the path controller; A switching circuit for turning on and off an electrical connection between a main unit and the main operating voltage supply unit, and for turning on and off an electrical connection between the optical transmitter, the optical receiver, the signal processor, and the path switching unit and the preliminary operating voltage supply unit. A power supply section having an operating voltage switching section having a switching circuit; 상기 제어부는 상기 메인동작전압공급부로부터 동작전압이 정상적으로 공급되고 있는 지 여부를 판단하고, 그 판단결과 상기 신호처리부가 정상동작상태에 있고 상기 메인동작전압공급부로부터 동작전압이 정상적으로 공급되고 있는 경우 상기 광송신부, 상기 광수신부, 상기 신호처리부 및 상기 경로절체부와 상기 메인동작전압공급부사이의 전기적 연결이 각각 온상태가 되도록 상기 동작전압스위칭부를 제어하고, 상기 신호처리부가 정상동작상태에 있고 상기 메인동작전압공급부로부터 동작전압이 정상적으로 공급되지 않는 경우 상기 광송신부, 상기 광수신부, 상기 신호처리부 및 상기 경로절체부와 상기 예비동작전압공급부사이의 전기적 연결이 각각 온상태가 되도록 상기 동작전압스위칭부를 제어하며, 상기 신호처리부가 이상동작상태에 있고 상기 메인동작전압공급부로부터 동작전압이 정상적으로 공급되는 경우 상기 광송신부, 상기 광수신부 및 상기 경로절체부와 상기 메인동작전압공급부사이의 전기적 연결이 각각 온상태가 되도록 상기 동작전압스위칭부를 제어하며, 상기 신호처리부가 이상동작상태에 있고 상기 메인동작전압공급부로부터 동작전압이 정상적으로 공급되지 않는 경우 상기 광송신부, 상기 광수신부 및 상기 경로절체부와 상기 예비동작전압공급부사이의 전기적 연결이 각각 온상태가 되도록 상기 동작전압스위칭부를 제어하는 것을 특징으로 하는 링형 광전송망시스템.The controller determines whether the operating voltage is normally supplied from the main operating voltage supplier, and as a result of the determination, when the signal processor is in a normal operating state and the operating voltage is normally supplied from the main operating voltage supplier. The operating voltage switching unit is controlled so that an electrical connection between the transmitter, the optical receiver, the signal processor, and the path switching unit and the main operating voltage supply unit is turned on, respectively, and the signal processor is in a normal operating state and the main operation is performed. When the operating voltage is not normally supplied from the voltage supply unit, the operation voltage switching unit is controlled so that the electrical connection between the optical transmitter, the optical receiver, the signal processor, and the path switching unit and the preliminary operation voltage supply unit is turned on. The signal processor is in an abnormal operation state. And when the operating voltage is normally supplied from the main operating voltage supply unit, controls the operating voltage switching unit so that the electrical connection between the optical transmitter, the optical receiver, and the path switching unit and the main operating voltage supply unit is turned on. When the signal processing unit is in an abnormal operation state and the operating voltage is not normally supplied from the main operating voltage supply unit, the electrical connection between the optical transmitter, the optical receiver, and the path switching unit and the preliminary operating voltage supply unit is turned on. And a ring type optical transmission network system for controlling the operation voltage switching unit.
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JPH1065619A (en) 1996-08-13 1998-03-06 Toshiba Corp Optical fiber cable network and optical bypass switch diagnosis device/method
KR20010037157A (en) * 1999-10-14 2001-05-07 윤덕용 Bi-directional, subcarrier-multiplexed self-healing ring optical network
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JPH1065619A (en) 1996-08-13 1998-03-06 Toshiba Corp Optical fiber cable network and optical bypass switch diagnosis device/method
KR20010037157A (en) * 1999-10-14 2001-05-07 윤덕용 Bi-directional, subcarrier-multiplexed self-healing ring optical network
KR20010103894A (en) * 2000-05-10 2001-11-24 이종훈 The Mehod and Apparatus of Dual Operation and Fault Detection in Optical Network Using Single Core
KR20020039407A (en) * 2000-11-21 2002-05-27 구자홍 channel auto exchange apparatus and method in STM

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