KR20000045012A - Apparatus for detecting connected status of optical fiber maintaining and operating system - Google Patents

Abstract

PURPOSE: An apparatus for detecting a connected status is provided to update a database and to automatically supply information on added items or deleted items to a user, by managing an information signal column for dividing each port as a table to detect whether the information signal column comes from an input terminal or other terminals, so that the user can know changed items of the connect information in an optical fiber maintaining/operating system. CONSTITUTION: An optical fiber maintaining/operating system detects information on a connected status of an optical fiber between optical communication facilities in a central office. An apparatus for detecting the connected status in the optical fiber maintaining/operating system comprises a connect information input circuit(410), a connect information transmitter(420), and a connect information detector(430). The connect information input circuit has many output ports. The connect information input circuit outputs connect information signals through the output ports. The connect information signals are for connected statuses of a transmission device and an optical fiber. First and second port selection controlling signals applied from outside designate the output ports. The connect information transmitter has many input ports, and receives the connect information signals through the input ports. The input ports are designated by the first/the second port selection controlling signals. The connect information transmitter transmits the connect information signals. The connect information detectors detects the connect information signals among signals output from the connect information transmitter. The connect information detector outputs the connect information signals.

Description

Device for detecting connection status of optical fiber maintenance system and method for automatically managing connection information using the same

The present invention relates to an apparatus for detecting a connection state of a light beam maintenance system and a method for automatically managing connection information using the same. The present invention relates to a connection detection apparatus capable of automatically recording and managing connection information between optical communication facilities, and a connection automatic management method using the same.

In general, an optical transmission device in a telephone station is optically distributed through an optical jumper cord and connected to a core wire by a light beam. By the way, the connection information between the facilities may change depending on the situation, and there is a hassle of having to check the connection information and create a new one every time.

1 is a configuration diagram of a general optical fiber optical fiber maintenance system, including an optical fiber distribution (OFD) 114 for connecting optical fibers connected to the optical apparatuses 111 to 113 to a core of optical optical fiber, and a transmission device. Test path providing unit (ODCS: Optical Device Card Self) (115) for providing a test path in the jumper cord connection section between the (111 to 113) and the optical fiber connection section 114, the measuring unit 116, the test An optical switch 117 connected between the path providing unit 115 and the measuring unit 116 and an optical fiber connection unit (OFD) 122 for connecting an optical fiber connected to the transmission apparatuses 118 to 120 to a core line of the optical path; It consists of.

In the figure, the area indicated by the jumper cord connection section is a facility in the telephone station, and the line from the one side light connection portion 114 to the other side light connection portion 121 shows a portion where the track is laid on the site as an external facility of the telephone station.

Here, the jumper cord is a dedicated jumper code for transmitting an optical signal, and serves as a connector for transmitting an optical signal between the optical fiber connecting portion or other devices from the transmitting devices.

In addition, the test signal from the measuring unit 116 is combined with the communication signal in the test path providing unit 115 and transmitted to the partner station optical line connecting unit 114. The main function of the system is to detect this test signal and determine the current characteristics of the light path.

However, when the number of the transmission apparatuses is considerably increased and the connection between the transmission apparatus and the optical fiber line changes to another line, it is necessary to efficiently manage it.

At present, there is no method of automatically managing the connection information between the optical communication-related facilities in the telephone station, and the facility data and the connection information between them are directly input by the optical fiber maintenance system operator.

Therefore, the operator checks the optical fiber connection part connected to the transmission apparatuses one by one, arranges it as a station number, and rewrites the station number whenever there is a change in the connection information and monitors that a failure occurs.

However, in case of transmission between the telephone stations or subscriber transmission, if the connection is changed, the optical jumper cord connecting the test path providing unit and the optical fiber connection unit may be moved to a different terminal and plugged into a different terminal. There was an inconvenience in that the user had to enter the connection and the connection to the user. Also, if the operator accidentally entered or missed the connection information, the system will test the wrong track. There was a problem running into.

Accordingly, the present invention has been made to solve the above problems,

This information is managed by managing a table of information signals to distinguish each port in the optical fiber maintenance system and detecting whether the information signal stream is coming from the input terminal or the other terminal, so that the connection information can be changed. An object of the present invention is to provide a connection state detection apparatus capable of automatically providing information to a user about an item to be updated or newly added or deleted by using a database, and a method of automatically managing connection information using the same.

1 is a block diagram of a general optical fiber maintenance system.

2 is a block diagram of a light beam maintenance system to which the present invention is applied.

3 is an explanatory diagram of a signal flow of the optical path maintenance system to which the present invention is applied;

Figure 4 is a configuration diagram of an embodiment of the connection state detection device of the optical fiber beam maintenance system according to the present invention.

5 is a flowchart illustrating an embodiment of a method for automatically managing connection information in an optical fiber maintenance system according to the present invention.

Explanation of symbols on the main parts of the drawings

410: connection information input unit 420: connection information transmission unit

430: connection information detection unit

In order to achieve the above object, the present invention provides a connection state detection apparatus in a line maintenance system for detecting information on a state of connection of optical cores between optical communication-related facilities in a telephone station, wherein a plurality of output ports are provided. Connection information input means for outputting a connection information signal on a connection state between a transmission device and a light path through the output port designated by first and second port selection control signals applied from the outside; Connection information transmission means having a plurality of input ports and receiving and transmitting connection information signals transmitted through the connection information input means through input ports designated by the first and second port selection control signals; And connection information detecting means for detecting and outputting the connection information signal from the signals output from the connection information transmitting means.

In addition, the present invention, in the automatic connection information management method in the optical path maintenance system for detecting information about the connection state of the optical fiber between the optical communication-related facilities, the optical fiber connected to the core of the optical path connected to the optical fiber Inputs the number of ports in the test path providing means for providing the path connecting means and the test path, and inputs information on whether a specific port of the optical fiber connecting means is connected to a specific port of the test path providing means. A first step of making; After the connection information signals of all ports are examined by assigning unique identifiers to the connection information between the ports, the connection information signals of the input terminals are continuously transmitted while the connection information signals of the input terminals are sequentially transmitted according to whether the connection information signals of the ports match. A second step of finding a port for detecting a connection information signal of an input terminal; And a third step of updating data on changes in the connection information signal according to whether the connection state of the ports is normal.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

FIG. 2 is a block diagram of the optical path maintenance system to which the present invention is applied, and as in FIG. 1, the optical path connecting parts 114 and 121, the test path providing part 115, the measuring part 116, The optical switch 117 is further provided, and an input terminal is further connected to the test path providing unit 115 and an output terminal is further provided with a connection state detection unit 210 connected to the light path connecting unit 114.

Here, the function performed by the connection state detection unit 210 will be described in detail with reference to FIG. 4 to be described later.

3 is an explanatory diagram of the signal flow of the optical fiber maintenance system to which the present invention is applied, and shows a concept of transmitting a detection signal for a connection state.

Referring to FIG. 3, the 'a' couple sends an information signal and checks whether the signal sent from the 'I' portion arrives properly. Here, it is assumed that an electrical signal can be sent to the optical jumper code in order to transmit the information signal.

And, more detailed description will be described with reference to FIG.

4 is a configuration diagram of an embodiment of an apparatus for detecting a connection state of a light beam maintenance system according to the present invention.

As shown in FIG. 4, the connection state detection device of the present invention has a plurality of output ports OD0 to OD3, and the connection state between the transmission device and the light path transmitted from the test path providing unit of FIG. A connection information input unit 410 for outputting the connection information signal I through an output port designated by the port selection control signals S0 and S1 applied from the outside, and a plurality of input ports ID0 to ID3, A connection information transmission unit 420 for receiving and transmitting the connection information signal transmitted through the connection information input unit 410 through an input port designated by the port selection control signals S0 and S1, and the connection information transmission unit 420. And a connection information detector 430 for detecting the connection information signal I from the signals output from the signal and outputting the connection information signal I to the optical path connecting unit of FIG.

Here, as an example using only four ports, more ports can be used.

The connection information input unit 410 includes inverters 411 and 412 for inverting the port selection control signals S0 and S1, and ports inverted through the connection information signal I and the inverters 411 and 412, respectively. Logical multiplying gate 413 for multiplying the selection control signals S0 and S1 through the output port OD0, the connection information signal I, and the port selection control signal S0 inverted through the inverters 411. And a logical multiplication gate 414 for logically multiplying the port selection control signal S1 through the output port OD1, and inverting the connection selection signal I, the port selection control signal S0, and the inverter 412. Logical multiplying the selected port selection control signal (S1) and outputs through the output port (OD2), and the logical connection gate (415) and the connection information signal (I) and the port selection control signals (S0, S1) Logical AND gate 416 output through OD3).

The connection information transfer unit 420 may include inverters 421 and 422 for inverting the port selection control signals S0 and S1, respectively, and an output signal of the logical product gate 413 input through the input port ID0. And an AND gate 423 for ANDing the port selection control signals S0 and S1 inverted through the inverters 421 and 422, and an output of the AND gate 414 input through the input port ID1. Signal, the logical multiplication gate 424 for performing an AND on the port selection control signal S0 and the port selection control signal S1 inverted through the inverters 421, and a logical multiplication gate input through the input port ID2. The logical product gate 425 for logically multiplying the output signal of the 415, the port selection control signal S0, and the port selection control signal S1 inverted through the inverter 422, and an input port ID3. Logical AND gate 426 for ANDing the output signal of the AND gate 416 and the port selection control signals SO and S1 All.

The connection information detector 430 outputs the connection information signal I detected by ORing the output signals of the logical product gates 423 to 426 of the connection information transfer unit 420 to the optical path connecting unit of FIG. 2.

An operation of the connection state detecting apparatus of the present invention having the structure as described above will be described in detail with reference to FIGS. 2 and 3.

The port selection control signals S0 and S1 are two bits, and the number of cases is four (00, 01, 10, 11).

Therefore, the port OD0 is selected when the port selection control signals S0 and S1 are "0", and the port OD1 is selected when the port selection control signals S0 and S1 are "0".

The connection information signal I is a binary signal sequence for dividing each port, and the port selection control signals S0 and S1 are set to "0" in order to transmit the signal through the port OD0.

The portion for detecting the connection information signal I is the 'b' portion of FIG. 3.

If the port selection control signals S0 and S1 are each "0", the ports OD0 and ID0 are selected and the connection information signal is transmitted.

Hereinafter, in order to explain the principle of operation of the connection state detection device of the present invention, OFD and ODCS have four terminals, and a description will be given of a case where two terminals are interchanged.

The system defines the connection information signal (I) as a binary signal string and has it as a table, and an initial table is set as shown in [Table 1].

TABLE 1

circuit S0 S1 Signal sequence Seoul-Daejeon 1 0 One Seoul to Incheon 0 1 10

In the normal state, the system sequentially sends the port selection control signals S0 and S1 "0" at the point 'A' of FIG. 3 to select the ports OD0 and ID0 and transmits a connection information signal.

In addition, the port selection control signals (S0, S1) "0" at the point "I" of FIG. 3 is sent to receive the connection information signal through the ports OD0 and ID0.

Then, it is checked whether the sent connection information signal and the received connection information signal are the same. If the result is the same, next, the port selection control signals S0 and S1 are sent in order to select the ports OD1 and ID1 and then the connection information signal '0010. Send '.

3, the port selection control signals S0 and S1 are sent to the point 'I' of FIG. 3 to receive the connection information signals input through the ports OD1 and ID1 and check whether the connection information signal is '0010'.

Subsequently, the port selection control signals S0 and S1 are repeatedly sent until the port selection control signals S0 and S1 are sent to " 10 " S0, S1) continue the repetition from "0" to "11".

In this case, the time sent from the point 'a' of FIG. 3 and the time received from the point 'b' of the FIG. 3 are controlled by a system controlling the connection state detecting apparatus of the present invention to synchronize the time of sending information and the receiving time. Fit.

Here, in the normal operation, the sent connection information signal and the received connection information signal are coincident with each other.

In order to explain the case in which the connection information is changed, a case in which the ports OD1 and OD2 are interchanged occurs.

Meanwhile, the first table is shown in the following [Table 2].

TABLE 2

circuit S0 S1 Signal sequence Seoul-Daejeon 1 0 One Seoul to Incheon 0 1 10

The user unplugs the jumper cord from the terminal to plug it into another port (ie, the Seoul-Daejeon port is OD2 and ID2).

At this time, the connection information signal entering Seoul-Daejeon is '0001', but the connection information signal coming out is '0000'.

Therefore, generate a connection error and register it in the temporary table shown in [Table 3].

TABLE 3

circuit S0 S1 Signal sequence Seoul-Daejeon 1 0 0

The system starts to check whether the connection information signal inputted from another port is detected. That is, the port selection control signal is sequentially changed at the point 'B' of FIG. 3 to check whether it is detected at another port.

In this case, if the entire port is checked but the signal is not detected because it is not yet connected, the port selection control signal at the point 'A' of FIG. 3 is increased to check for another port.

And because it is a port exchange, the port of Seoul-Incheon is also missing.

Therefore, the binary signal string of the connection information signal was '0010', but since '0000' comes in, this also generates a connection error and registers it in the temporary table as shown in [Table 4].

TABLE 4

circuit S0 S1 Signal sequence Seoul-Daejeon 1 0 0 Seoul to Incheon 0 1 0

The rest of the ports are not changed, so after performing a normal check routine, the port exchange is completed after a while.

Now, the signal sequence coming back after sequentially selecting the Seoul-Daejeon line (where port selection control signal is '10') is '0010'. The connection error occurs again and is registered in the temporary table as shown in [Table 5].

TABLE 5

circuit S0 S1 Signal sequence Seoul-Daejeon 1 0 10 Seoul to Incheon 0 1 0

Perform check routines for other ports.

The Seoul-Incheon line (where the port selection control signal is '01') was selected and the signal sequence became '0001'. The connection error occurs again and is registered in the temporary table as shown in [Table 6].

TABLE 6

circuit S0 S1 Signal sequence Seoul-Daejeon 1 0 10 Seoul to Incheon 0 1 One

Comparing the temporary table with the original table, you can see that the two lines have changed. Update the connection information of the original table by using the confirmed change history.

5 is a flowchart illustrating an embodiment of a method for automatically managing connection information in an optical fiber maintenance system according to the present invention.

Referring to FIG. 5, the number of ports of the OFD and the ODCS is input (501), and the number of ports of the OFD is connected to the number of ports of the ODCS (502).

Subsequently, a unique identifier, that is, a binary signal string, is respectively assigned to the connection information between the ports (503).

Then, after controlling the connection state detection apparatus of the present invention to check the connection information signal from the first port to the last port (504), and determines whether the connection information signals of the ports match (505), if it does not match Proceed to inspection process 504.

If, as a result of the determination in the signal matching determination process 505, the connection information signal matches, the connection information signal of the input terminal is continuously transmitted, and the ports of the output terminal are sequentially connected to find a port for detecting the connection information signal of the input terminal (506). ).

Subsequently, the connection information signal is detected at another port to determine whether the connection state is normal (507). If the connection state is normal, the data on the change of the connection information signal is updated (508), and then the process proceeds to the signal checking process (504). .

If the result of the determination in the connection state determination process 509 is abnormal, the connection state bad information is output 509 and then the signal inspection process 504 is passed.

Although the technical idea of the present invention has been described in detail according to the above preferred embodiment, it should be noted that the above-described embodiment is for the purpose of description and not of limitation. In addition, those skilled in the art will understand that various embodiments are possible within the scope of the technical idea of the present invention.

As described above, the present invention uses an optical jumper code for transmitting an electrical signal to the optical jumper cord, and gives a signal string for distinguishing each port to determine whether to interconnect each other using an electrical signal. By checking and using this information to update the database or to automatically provide information to the user about items that are newly added or deleted, the maintenance of the light beam can be facilitated.

Claims (8)

An apparatus for detecting a connection state in an optical line maintenance system that detects information on a connection state of an optical fiber between facilities related to optical communication in a telephone station, It has a plurality of output ports (ports), and outputs the connection information signal for the connection state between the transmission device and the optical path through the output port designated by the first and second port selection control signal applied from the outside Connection information input means; Connection information transmission means having a plurality of input ports and receiving and transmitting connection information signals transmitted through the connection information input means through input ports designated by the first and second port selection control signals; And Connection information detection means for detecting and outputting the connection information signal from the signals output from the connection information transmission means; Device for detecting the connection state of the optical fiber maintenance system comprising a. The method of claim 1, The connection information input means, First inverting means for inverting the first port selection control signal; Second inverting means for inverting said second port selection control signal; At least one first AND operation means for ANDing the first and second port selection control signals and the connection information signal; At least one second AND operation means for performing an AND operation on the first port selection control signal, the second port selection control signal inverted through the second inversion means, and the connection information signal; At least one third AND operation means for ANDing the first port selection control signal, the second port selection control signal, and the connection information signal inverted through the first inversion means; And At least one fourth logical product operation means for ANDing the first port selection control signal inverted through the first inverting means, the second port selection control signal inverted through the second inverting means and the connection information signal; Device for detecting the connection state of the optical fiber maintenance system comprising a. The method of claim 2, The connection information transmission means, Third inverting means for inverting the first port selection control signal; Fourth inverting means for inverting said second port selection control signal; At least one fifth AND product for ORing the first and second port selection control signals and the output signal of the at least one first AND product; At least one sixth logical product operation means for logically multiplying the first port selection control signal, the second port selection control signal inverted through the fourth inverting means and the output signal of the at least one second logical product calculating means ; At least one seventh logical product operation means for ANDing the first port selection control signal inverted through the third inversion means, the second port selection control signal, and the output signal of the at least one third AND product; ; And At least for logically multiplying a first port selection control signal inverted through the third inverting means, a second port selection control signal inverted through the fourth inverting means and an output signal of the at least one fourth logical product calculating means; One eighth logical AND operation means Device for detecting the connection state of the optical fiber maintenance system comprising a. The method according to any one of claims 1 to 3, The connection information detecting means, Logical sum calculating means for ORing the output signals of the connection information transmitting means. Device for detecting the connection state of the optical fiber maintenance system comprising a. In the optical link management system for detecting information on the connection state of the optical fiber between the optical communication-related facilities Automatic management method of the connection information, Enter the number of ports in the optical fiber connection means for connecting the optical fiber connected to the transmission apparatus to the core of the optical fiber and the test path providing means for providing the test path, and the specific port of the optical fiber connection means A first step of inputting information on whether a connection is made to a specific port of the route providing means; After the connection information signals of all ports are examined by assigning unique identifiers to the connection information between the ports, the connection information signals of the input terminals are continuously transmitted while the connection information signals of the input terminals are sequentially transmitted according to whether the connection information signals of the ports match. A second step of finding a port for detecting a connection information signal of an input terminal; And A third step of updating data on changes in the connection information signal according to whether the connection status of the ports is normal; Method of automatically managing the connection information of the optical fiber maintenance system, including. The method of claim 5, The first step is, A fourth step of inputting the number of ports in said optical fiber connecting means and said test path providing means; And A fifth step of inputting information on whether a specific port of the optical fiber connection means is connected to a specific port of the test path providing means; Method of automatically managing the connection information of the optical fiber maintenance system, including. The method of claim 5, The second step, A fourth step of assigning a unique identifier to the connection information between the ports; A fifth step of inspecting a connection information signal from the first port to the last port; A sixth step of determining whether the connection information signals of the ports match; A seventh step of searching for a port where the connection information signal of the input terminal is detected by sequentially connecting the ports of the output terminal while continuing to send the connection information signal of the input terminal as a result of the determination of the sixth step; And If the connection information signals of the ports do not match as a result of the sixth step, the eighth step is passed to the fifth step. Method of automatically managing the connection information of the optical fiber maintenance system, including. The method according to any one of claims 5 to 7, The third step, A ninth step of determining whether the connection status of the ports is normal; A tenth step of updating data on a change of the connection information signal and transferring to the second step if the connection state of the ports is normal as a result of the determination of the ninth step; And When the connection state of the ports is not normal as a result of the determination of the ninth step, an eleventh step of outputting connection state failure information of the ports and proceeding to the second step Method of automatically managing the connection information of the optical fiber maintenance system, including.