JPH04360337A - Slave station automatic setting system for ring communication system - Google Patents

Abstract

PURPOSE:To realize the automatic setting system in which a master station sets a slave station automatically with respect to the automatic setting system of the slave station in the ring communication system comprising the master station, plural slave stations and a ring transmission line. CONSTITUTION:A master station 100 extracts unsetting information set from an unsetting information transmission means 22 of plural slave stations 200 from an unsetting information extract means 12 prior to the start of communication of a ring communication system and confirms it, a control output sends from a control means 13 of the master station 100 when even one slave station is in existence in the plural slave stations 200, a management number is given sequentially to the plural slave stations 200 and the setting information designated by the management number is sent to the plural slave stations 200 and the information is set automatically by a setting means 23 in the slave stations 200.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention comprises a master station, a plurality of slave stations,
This invention relates to an automatic setting method for slave stations in a ring communication system consisting of a ring-shaped transmission path.

In a ring communication system, various settings are required for slave stations connected to a ring-shaped transmission path. For example, it is necessary to set the number of your station, the channel number for your station, communication speed, interface, etc.

FIG. 5 is a diagram illustrating an example of a ring communication system, in which 100 is a master station, 201 and 203 are slave stations installed on utility poles, 202 is a slave station installed inside a building, and 400 is a slave station installed in a building.
indicates a telephone pole.

As shown in the figure, the slave stations of the ring communication system are not all housed inside a building, but may be installed on utility poles 400 outdoors due to cost considerations. The structure of the slave stations 201 and 203 installed on such a utility pole 400 is a sealed structure from the viewpoint of reliability.

[0005] There is a need for a slave station setting method that can automatically set various settings for such a slave station having a sealed structure.

[0006]

2. Description of the Related Art FIG. 6 is a diagram illustrating a conventional slave station. 211 and 212 in the figure are optical receivers (indicated by OR in the figure), 213 and 214 are separation units (indicated by DMUX in the figure), 215 and 216 are optical transmitters (indicated by OS in the figure), 217 and 218 is a multiplex section (indicated as MUX in the figure)
, 23B is a drop/insert section (indicated as D/I in the figure), and 24 is an interface section (indicated as INF in the figure).

[0007] When a slave station number is determined in a ring communication system, a channel number assigned to the slave station is determined. Therefore, the optical signal input from the optical receiver 211 is separated into channels by the separating section 213 and inputted to the drop/insert section 23B.

[0008] The drop/insert section 23B performs hardware settings and is set to capture a specified channel. The data of the specified channel taken in by the drop/insert section 23B is sent to a terminal (not shown) through the interface section 24.

Although the above explanation has been made regarding the operation on the receiving side of line 1, the operation on the transmitting side is basically the same except that it is reversed. Furthermore, even if line 2 is used, the operation is exactly the same.

0010

[Problem to be Solved by the Invention] In the above-mentioned conventional example, when setting up the slave stations 200, an engineer goes to the installation location for each slave station 200 and sets the hardware and software there. ing. Such setting work and post-setting confirmation work take a long time, and the more setting items there are, the higher the probability of human error occurring.

[0011] Furthermore, it takes time to move to the location where the slave station 200 is installed, and it takes a long time to set up and confirm the entire system. Furthermore, once the casing of the slave station 200, which has a sealed structure for outdoor installation, is opened for setting work at the installation location, even if the casing is closed after the setting work is completed, the completely sealed structure remains as before. It is difficult to do so and causes a decrease in reliability.

[0012] The present invention attempts to realize an automatic setting method in which a master station can automatically set up a slave station in a ring communication system.

[0013]

Means for Solving the Problems FIG. 1 is a block diagram illustrating the principle of the present invention. 100 in the figure is the master station, 200
are a plurality of slave stations, 300 is a ring-shaped transmission path 300, 11 in the master station 100 is a demultiplexer that inputs and outputs signals to and from the transmission path 300, and 12 is a demultiplexer that inputs and outputs signals to and from the transmission path 300; 13 is an unset information extracting means for extracting information indicating the unset state of the slave station from the signal, and 13 is an unset information extraction means when unset information exists in the information extracted by the unset information extracting means 12. It is a control means for sending setting information to the slave station 100 of.

Further, 21 in the slave station 200 is a transmission line 30.
22 is an unconfigured information sending unit that sends out unconfigured information when the own station is unconfigured, and 23 is a configuration sent from the master station 100. It is a setting means for setting its own station based on information, and 30 is a terminal accommodated in the slave station 200.

Prior to starting communication in the ring communication system, the master station 100 uses the unconfigured information extracting means 12 to extract and check the unconfigured information sent from the unconfigured automatic transmitting means 22 of the plurality of slave stations 200. However, if there is even one unconfigured slave station among the multiple slave stations 200, the master station 100 assigns management numbers to the multiple slave stations 200 in order, and sets the configuration information specified by the management number. is sent to a plurality of slave stations 200 for automatic setting.

[0016] Furthermore, the unset information of the own station is sent to the previous slave station 1.
Adder Ai adds the unconfigured information received from 00 to the unconfigured information received from the previous slave station 100 and the own station's unconfigured information, and adds the unconfigured information received from the previous slave station 100 to the subsequent slave station 200 as unconfigured information. Send.

[0017]

[Operation] A ring communication system is constructed by connecting a master station 100 and a plurality of slave stations 200 via a ring-shaped transmission path 300. Therefore, the master station 100 extracts and confirms the unconfigured information sent from the unconfigured information sending means 22 of the plurality of slave stations 200.

[0018] The unset information is assigned a predetermined bit in a predetermined frame format, and the master station 100 extracts this bit and indicates, for example, "1" as "not set" and "0". If so, it is determined that the setting has been completed.

If it is detected that there is an unconfigured slave station 200, the control means 13 selects, for example, a clockwise transmission path of the duplexed transmission path 300, and connects the master station 100 Management numbers are assigned in order from the slave station 200 closest to the terminal.

After the management number is assigned, the control means 13 of the master station 100 specifies the management number of the slave station 200 and collects setting information. If it has been set, leave it as is; if it has not been set, By sending the setting information of the slave station 200 with the management number from the control means 13 and writing the setting information into the setting means 23 of the slave station 200, automatic setting can be performed.

Furthermore, unset information is assigned a predetermined bit in the frame format, and "1" is set as "unset".
, "0" indicates "configured", and by adding the unconfigured information of a plurality of slave stations as unconfigured information, the presence or absence of an unconfigured slave station 200 can be easily detected by the master station 100.

[0022]

Embodiment FIG. 2 is a diagram illustrating an embodiment of the present invention. Optical receivers 211, 212, separation unit 213,
214, optical transmitters 215, 216, multiplexing section 217
, 218, the drop/insert section 23B, and the interface section 24 are the same components as explained in the conventional example of FIG.

Further, 21A and 21B are auxiliary signal separation units (
22A is an unset information sending circuit (indicated as SS in the figure) that sends out unset information, and 23A is a control section (indicated as CONT in the figure).

In the configuration of FIG. 2, lines 1 and 2 use optical fibers. In order to effectively utilize the lines 1 and 2, the management setting information uses auxiliary signals. This is an example in which a CMI code is used for transmitting and receiving optical signals over an optical fiber, and by forcibly making this CMI code erroneous, an auxiliary signal is superimposed on the main signal.

For example, on the receiving side of line 1, the optical signal received by the optical receiver 211 is input to the auxiliary signal separation unit 21A, and the auxiliary signal is separated. The main signal from which the auxiliary signal has been separated is separated into channels by the separation section 213, and is then separated into drop/drop/channels.
Input into the insert section 23B.

On the other hand, using the auxiliary signal separated by the auxiliary signal separation section 21A, setting information is written to the control section 23A, and according to the setting information, the drop/insert section 23B is controlled to take in the specified channel.
Communication is performed with a terminal (not shown) through the interface section 24.

Further, if the contents of the control section 23A are all "0", the unconfigured information sending circuit 22A assumes that the slave station is unconfigured and sends the unconfigured information to the optical transmitter 21.
6 to a time slot designated for each slave station 200 (the route of the main signal on the transmitting side is not shown).

FIG. 3 is a diagram illustrating another embodiment of the present invention, in which adders A1 and A2 are added to the configuration of FIG. 2. This operation is such that the unconfigured information of the own station is added to the unconfigured information received from the preceding slave station 200 and sent, and "1" is used as the unconfigured information.

For example, even if the own station has been set, if the unset information from the preceding slave station 200 is "1", adder A1 adds "0" indicating that the own station has been set. Since the "1" indicating unset is sent as is to the master station 100, the master station 100 detects the presence of an unset slave station 200 by the "1" and automatically sets it.

FIG. 4 shows a frame format of another embodiment of the present invention, and is an example in which specific bits are assigned as unset information, and the master station 100 extracts these bits and sends them to unset slave stations. Detect whether or not there is.

As described above, the unconfigured information of the slave station 200 is transmitted to the master station 100, and the master station 100 transmits the unconfigured information of the slave station 200 to the master station 100.
If there is an unconfigured slave station 200, setting information is sent and the slave station 200 is automatically configured.

[0032] Therefore, the slave station 20 has a sealed structure.
Since there is no need to open 0 for setting work and automatic setting can be performed, factors that lower reliability can also be removed.

[0033]

[Effects of the Invention] According to the present invention, a master station detects the presence or absence of an unconfigured slave station, and if there is an unconfigured slave station, it transmits setting information and automatically configures the slave station. This eliminates human errors related to settings and eliminates the need for engineers to go to the location where the slave stations are installed to perform settings and confirmation work, making it possible to start up the system in a short time. moreover,
Since there is no need to open the sealed slave station for setting work, it is possible to eliminate factors that reduce reliability.

[Brief explanation of the drawing]

[Figure 1] Block diagram explaining the principle of the present invention

[Figure 2
] Diagram explaining an embodiment of the present invention

[Figure 3] Diagram explaining other embodiments of the present invention

FIG. 4 Frame format of other embodiments of the present invention

[Figure 5] Diagram explaining an example of a ring communication system

[Figure 6] Diagram explaining a conventional slave station

[Explanation of symbols]

100 Master station 200, 201, 202, 203 Slave station 300 Transmission path 4
00 Utility poles 11, 21 Demultiplexing section
12 Unset information extraction means 13 Control means 211, 212 Optical receiver,
213, 214 separation unit 215, 216 optical transmitter,
217, 218 Multiplexing sections 21A, 21B Auxiliary signal separation section 22 Unset information sending means
22A Unset information sending circuit 23 Setting means
23A Control section 23B Drop/insert section 24
Interface section 30 terminal
A1, A2 adder

Claims (2)

[Claims] Claim 1: A master station (100) and a plurality of slave stations (200
) and a ring-shaped transmission path (300), in which the master station (100) inputs and outputs signals to and from the transmission path (300). a demultiplexer (11) that performs demultiplexing; an unconfigured information extraction means (12) that extracts information indicating an unconfigured state of a slave station from the signals separated by the demultiplexer (11); If unconfigured information exists in the information extracted by the means (12), the unconfigured slave station (10)
0), and the slave station (200) includes a demultiplexer (21) that inputs and outputs signals to and from the transmission path (300), and Unset information sending means (22) that sends unset information when setting
and a setting means (23) for setting its own station according to setting information sent from the master station (100), and the master station (100) configures the plurality of stations before starting communication in the ring communication system. The unconfigured information sent from the unconfigured information sending means (22) of the slave stations (200) is extracted and confirmed by the unconfigured information extracting means (12), and If there is even one unconfigured slave station among the stations, the master station (100) sends the plurality of slave stations (20
0) in order, and then sends setting information specified for each management number to the plurality of slave stations (200) to perform automatic setting. Setting method. [Claim 2] The unset information of the own station is transmitted to the previous slave station (10
An adder (Ai
), and the unset information is the sum of the unset information received from the preceding slave station (100) and the own station's unset information, and the unset information is sent after the unset information sending means (22). An automatic slave station setting method for a ring communication system characterized by transmitting data to the slave station (200) of the highest rank.