JP2798054B2 - Alarm transfer method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an alarm transfer method, and more particularly to an alarm transfer method in a bidirectional transmission system in which an intra-office device and a plurality of subscriber devices are connected by a 1: N coupler.

[0002]

2. Description of the Related Art Conventionally, this type of alarm transfer method employs a method of transmitting alarm information such as quality deterioration information of a transmission line detected by each subscriber unit and failure information of the subscriber unit to each of the subscriber units. It is used as a procedure for transferring to the intra-office device using the band on the road. This transfer of the alarm information is used for the purpose of promptly performing an appropriate treatment for the generated alarm in the station device.

For this purpose, among the alarm information detected by each subscriber unit, information which cannot be transferred to the intra-office unit is displayed on the subscriber unit, and the contents of the alarm are visually checked by a maintenance person. ing.

Another conventional example having a technical field similar to that of the present invention is an "interfering light blocking device" disclosed in JP-A-3-64135. In this conventional example, when the signal light incident on the optical star coupler indicates an abnormality, the signal light is cut off at the input stage of the optical star coupler.
It is stated that this can avoid the influence on the two-way communication system.

Further, according to the "communication line fault detection system" disclosed in Japanese Patent Application Laid-Open No. S61-116436, a communication line fault detection circuit is provided outside each remote node. It is stated that this makes it possible to obtain effects such as eliminating the need for an operator at the remote node.

[0006]

However, in the above-mentioned prior art, the subscriber unit that detected the alarm and the subscriber unit that transfers the detected alarm to the intra-office device are the same subscriber unit. For this reason, depending on the content of the trouble that has occurred, there is a case where the alarm information detected by each subscriber device cannot be transferred to the intra-office device by itself. These alert information may not be apparent unless the maintenance person directly looks at the display on the subscriber device. When an alarm is issued, prompt action is required, and the occurrence of such a situation involves a problem that does not meet the purpose.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an alarm transfer method that allows more alarm information to be obtained by an in-station device without requiring a maintenance person to go directly to each subscriber device.

[0008]

In order to achieve the above object, an alarm transfer method according to the present invention comprises an intra-office device and at least two
An alarm transfer method in a two-way transmission system in which one or more subscriber units are connected one-to-many via a coupler, wherein at least one of at least two subscriber units is replaced with a subscriber unit for alarm transfer. A replacement step, a collection step in which the alarm transfer subscriber device collects alarm information detected by another subscriber device, and a transmission line and a transmission band previously allocated to the alarm transfer subscriber device. Transferring the collected alarm information to the intra-office device, thereby increasing the collection rate of the alarm information in the intra-office device.

The above-described bidirectional transmission system preferably includes a bidirectional transmission system in which the intra-office device and the subscriber device are connected to each other via a communication line for alarm information, and are connected one-to-many.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of an alarm transfer method according to the present invention; FIG.
FIG. 7 to FIG. 7 show one embodiment of the alarm transfer method of the present invention.

Next, a first embodiment will be described in detail with reference to the drawings. Referring to FIG. 1, the subscriber device 3
A to 3M and the alarm transfer subscriber unit 3N are connected to the intra-office device 2 via the coupler 1. Subscriber devices 3A-3
M and the subscriber unit 3N for alarm transfer are connected to the communication line 4 for alarm information.
1 is connected to M to 1 bus, and communication line 5 for alarm information
1 is bus-connected M to 1.

Next, the configurations of the subscriber units 3A to 3M will be described. FIG. 2 is a block diagram illustrating a configuration example of a part related to the alarm transfer of the subscriber devices 3A to 3M in the first embodiment. Since the parts related to the alarm transfer of the subscriber units 3A to 3M are the same configuration, the subscriber units 3A to 3M will be described below.
A will be described as an example.

The part of the subscriber unit 3A related to the alarm transfer includes an ID insertion unit 6, an alarm information transfer unit 7, an alarm detection unit 8,
It comprises an ID identification section 9 and an alarm information transmission request identification section 10. The ID identifying unit 9 of the above-mentioned component unit identifies an ID addressed to itself from an alarm information transmission request input from the alarm transfer subscriber unit 3N via the alarm information communication line 41, and
The warning information transmission request assigned with D is passed to the warning information transmission request identification unit 10.

The alarm information transmission request identification section 10 identifies an alarm information transmission request and outputs an alarm information transmission enable / disable signal to the alarm information transmission section 7. The alarm information transmitting unit 7 includes an alarm detecting unit 8
Then, according to the alarm information transmission enable / disable signal input from the alarm information transmission request identification unit 10, the alarm information is output to the ID insertion unit 6 when transmission is possible. The ID insertion unit 6 adds its own ID to the alarm information and outputs the alarm information to the alarm information communication line 51.

Next, the configuration of the alarm transfer subscriber unit 3N will be described. FIG. 3 is a block diagram illustrating a configuration example of a part related to the alarm transfer of the alarm transfer subscriber device 3N according to the first embodiment.

In FIG. 3, the subscriber unit 3N for forwarding alarms
The part related to the alarm transfer comprises an ID identification unit 11, an alarm information extraction unit 12, an alarm information insertion unit 13, an ID insertion unit 14, and an alarm information transmission request generation unit 15.

The alarm information transmission request generator 15 of the above components generates an alarm information transmission request and outputs it to the ID insertion unit 14. The ID insertion unit 14 adds the ID of each of the subscriber devices 3A to 3M to the input alarm information transmission request and periodically transmits the request to the alarm information communication line 41 in order.

The ID identification unit 11 is a subscriber unit 3A to 3M.
The ID added to the input alarm information is identified, the alarm information is output to the alarm information extraction unit 12, and the ID selection signal is output to the alarm information insertion unit 13. The alarm information insertion unit 13 stores the alarm information extracted by the alarm information extraction unit 12 and the I
Based on the ID selection signal input from the D identification unit 11, the alarm information is mapped to the signal format determined between the alarm information for each subscriber device and the intra-office device 2.

Next, the operation of the embodiment will be described in detail with reference to FIG. The subscriber units 3A to 3M and the subscriber unit for alarm forwarding 3N are respectively assigned to the intra-office units 2 assigned thereto.
The communication with the intra-office device 2 is performed using the signal transmission band for.

The alarm transfer subscriber unit 3N periodically and periodically transmits an alarm information transmission request to the subscriber units 3A to 3M. The subscriber units 3A to 3M constantly monitor the transmission line alarm and the in-device alarm, and when recognizing a request for sending their own alarm information from the alarm transfer subscriber unit 3N, send the detected alarm information to the alarm transfer subscriber. It is sent to the device 3N.

The alarm transfer subscriber unit 3N identifies the ID from the input alarm information and simultaneously extracts the alarm information,
The alarm information for each subscriber device is mapped on a signal format determined between the terminal device and the intra-station device 2.

Referring to FIG. 3, subscriber units 3A to 3M
Is transmitted to the alarm information transmission request generated by the alarm information transmission request generation unit 15 by adding an ID corresponding to the subscriber units 3A to 3M by the ID insertion unit 14 to the alarm information transmission request. Output from the subscriber unit 3N.

Referring to FIG. 2, subscriber units 3A to 3M
In the alarm information transmission request input to the device, the ID identification unit 9 identifies the ID addressed thereto, the alarm information transmission request identification unit 10 recognizes the alarm information transmission request, and the alarm information transmission unit 7 transmits an alarm information transmission enable / disable signal. Is output.

The alarm information transmitting section 7 receives the alarm detected by the alarm detecting section 8 and outputs alarm information to the ID insertion section 6 when the alarm information transmission enable / disable signal is in the transmission permission state. Do not output anything. The ID insertion unit 6 adds its own ID to the alarm information input from the alarm information transmission unit 7 and outputs the same to the alarm transfer subscriber device 3N.

Referring to FIG. 3, subscriber units 3A to 3M
From the alarm information input, the IDs of the subscriber units 3A to 3M are identified by the ID identification unit 11, the alarm information is output to the alarm information extraction unit 12, and the ID selection signal is output to the alarm information insertion unit 13 at the same time. I do. The alarm information insertion unit 13 stores the alarm information input from the alarm information extraction unit 12 and the ID identification unit 1.
On the basis of the ID selection signal input from 1, mapping is performed on a signal format determined with the intra-office device 2.

Next, effects of the first embodiment will be described. In the first embodiment, an alarm forwarding subscriber device is provided, and the transmission line alarm and the in-device alarm detected by each subscriber device are transmitted using a communication line different from the transmission line to the intra-office device. In this case, the data is collected by the alarm transfer subscriber device and transferred to the intra-office device. For this reason, by transferring the alarm information that the subscriber unit cannot directly transfer to the intra-office unit to the intra-station unit via the alarm transfer subscriber unit, each alarm information can be transmitted even if the maintenance person does not go directly to the subscriber unit. Can be recognized.

Next, a second embodiment of the present invention will be described with reference to the drawings. Referring to FIG. 4, a plurality of subscriber unit groups 20A to 20N are connected via a coupler 1 to an intra-station device 2A.
It is connected to the. These subscriber device groups 20A to 20A
N is one or a plurality of subscriber units 21A to 21J, 21
L-21P, etc. and one alarm transfer subscriber unit 21K, 2
1Q and the like, and each is connected to the intra-station device 2 via the coupler 1.

Further, in each of the subscriber unit groups 20A to 20N, the subscriber units 21A to 21J, 21L to 21P, etc. and the subscriber units 21K, 21Q for alarm transfer are used for the alarm information in the first embodiment. Similarly to the connection of the communication lines 41 and 51, the alarm information communication lines 42A and 52A, 42A
N and 52N.

Each of the subscriber unit groups 20A to 20N is installed in a centralized location, and each alarm transfer operation is performed in the same manner as in the first embodiment.
In this embodiment, each of the alarm communication lines 42A and 5A
Since the physical range of the wiring such as 2A, 42N, and 52N falls within a single range, the wiring length can be relatively short.

The second embodiment has an effect that, in addition to the effect of the first embodiment, the length of the alarm information communication line connecting the subscriber unit and the alarm transfer subscriber unit can be reduced. .

Next, a third embodiment will be described with reference to the drawings. With reference to FIG.
30M and the alarm transfer subscriber device 30N are connected to the intra-station device 2 via the coupler 1.

FIG. 6 is a block diagram showing a configuration of a part related to the alarm transfer of the subscriber units 30A to 30M in the third embodiment. The parts related to the alarm transfer of the subscriber units 30A to 30M have the same configuration.
A description will be given taking 0A as an example.

In FIG. 6, the parts related to the alarm transfer of the subscriber unit 30A include an ID insertion unit 6, an alarm information transmission unit 7,
It comprises an alarm detection unit 8, an ID identification unit 9, an alarm information transmission request identification unit 10, a radio signal transmission unit 16, and a radio signal reception unit 17. The radio signal receiving unit 17 receives the alarm information transmission request transmitted as a radio signal from the alarm transfer subscriber device 30N, converts the request into an electric signal, and outputs the electric signal to the ID identification unit 9.

The ID identification section 9 identifies the ID addressed to the self from the input alarm information transmission request, and passes the alarm information transmission request assigned with the self-addressed ID to the alarm information transmission request identification section 10. The alarm information transmission request identification unit 10 identifies an alarm information transmission request and outputs an alarm information transmission enable / disable signal to the alarm information transmission unit 7.

The alarm information transmitting section 7 receives the alarm information detected by the alarm detecting section 8 and, if the alarm information can be transmitted in accordance with the alarm information transmission enable / disable signal input from the alarm information transmission request identifying section 10, inserts the alarm information into the ID inserting section. 6 is output. ID insertion unit 6
Outputs the alarm information in which the own ID is added to the alarm information to the wireless signal transmitting unit 16. The wireless signal transmitting unit 16 converts the input alarm information into a wireless signal and converts the alarm information into a wireless signal.
Call 0N.

FIG. 7 is a block diagram showing a configuration of a part related to the alarm transfer of the alarm transfer subscriber device 30N according to the third embodiment. In FIG. 7, the part related to the alarm transfer of the alarm transfer subscriber device 3N includes an ID identifying unit 11,
Alarm information extraction unit 12, alarm information insertion unit 13, ID insertion unit 14, alarm information transmission request generation unit 15, radio signal reception unit 1
8 and a radio signal transmission unit 19. The alarm information transmission request generation unit 15 generates an alarm information transmission request and outputs the request to the ID insertion unit 14.

The ID insertion unit 14 adds the ID of each of the subscriber units 30A to 30M to the input alarm information transmission request,
The signals are sequentially and periodically output to the wireless signal transmission unit 19. The radio signal transmitting unit 19 converts the input alarm information transmission request into a radio signal and transmits the radio signal to the subscriber units 30A to 30M.

The radio signal receiving section 18 includes the subscriber units 30A to 30A.
After receiving the alarm information transmitted as a wireless signal from 30M, the alarm information is converted into an electric signal and output to the ID identifying unit 11. The ID identification unit 11 identifies an ID added to the input alarm information of the subscriber devices 30A to 30M, outputs the alarm information to the alarm information extraction unit 12, and outputs an ID selection signal to the alarm information insertion unit 13. I do.

The alarm information insertion unit 13 is provided with the alarm information extraction unit 1
Based on the alarm information extracted in step 2 and the ID selection signal input from the ID identification unit 11, the alarm information for each subscriber device is mapped onto a signal format determined between the local station 2 and the local station. In this embodiment, the subscriber devices 30A to 30A
Since the alarm information of M is collected by wireless signals, there is no need to physically lay signal lines.

The third embodiment has the effect of reducing the amount of work for removing and adding subscriber units, in addition to the effects of the first embodiment.

According to the above embodiment, all the alarms detected by the subscriber device are transferred to the intra-office device by using another alarm transfer subscriber device connected to the intra-office device via the coupler. I have. Therefore, the in-station device can obtain all the alarm information detected by the subscriber device. Thus, it is possible for the maintenance person to obtain all the alarm information detected by the subscriber device without going to the installation location of the subscriber device.

Although the above embodiment is an example of a preferred embodiment of the present invention, the present invention is not limited to this, and various modifications can be made without departing from the spirit of the present invention.

[0043]

As is apparent from the above description, the alarm transfer method of the present invention replaces at least one of at least two subscriber units with an alarm transfer subscriber unit, and provides an alarm transfer subscriber. The device collects alert information detected by other subscriber devices. The collected alarm information is transferred to the intra-office device using a transmission line and a transmission band assigned to the alarm transfer subscriber device in advance. Therefore, the collection rate of the alarm information in the in-station device can be increased.

According to the above procedure, most of the alarm information detected by the subscriber device can be obtained by the intra-office device. This allows the maintenance person to check the alarm information detected by the subscriber device without going to the installation location of the subscriber device.

[Brief description of the drawings]

FIG. 1 is a system block configuration diagram to which a first embodiment of an alarm transfer method according to the present invention is applied;

FIG. 2 is a block diagram illustrating components related to alarm transfer of the subscriber device according to the first embodiment.

FIG. 3 is a block diagram showing components related to the alarm transfer of the subscriber device for alarm transfer according to the first embodiment.

FIG. 4 is a system block configuration diagram to which the second embodiment is applied.

FIG. 5 is a system block configuration diagram to which a third embodiment is applied.

FIG. 6 is a block diagram illustrating components related to alarm transfer of a subscriber device according to a third embodiment.

FIG. 7 is a block diagram showing components related to the alarm transfer of the alarm transfer subscriber device according to the third embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Coupler 2 In-station apparatus 6 ID insertion part 7 Alarm information transmission part 8 Alarm detection part 9 ID identification part 10 Alarm information transmission request identification part 11 ID identification part 12 Alarm information extraction part 13 Alarm information insertion part 14 ID insertion part 15 Alarm information Transmission request generator 16 Radio signal transmitter 17 Radio signal receiver 18 Radio signal receiver 19 Radio signal transmitter 3A-3M, 21A-21J, 21L-21M, 30A
-30M subscriber unit 3N, 21K, 21Q, 30N alarm transfer subscriber unit 20A-20N subscriber unit group 41, 42 alarm information communication line 51, 52 alarm information communication line

Claims (2)

(57) [Claims] 1. An alarm transfer method in a two-way transmission system in which an intra-office device and at least two subscriber devices are connected one-to-many via a coupler, wherein one of the at least two subscriber devices is provided. A replacement step of replacing the above with an alarm transfer subscriber device; a collection step in which the alarm transfer subscriber device collects alarm information detected by another subscriber device; and a pre-assignment to the alarm transfer subscriber device. Transferring the collected alarm information to the intra-office device using a transmission line and a transmission band that have been set, and increasing the collection rate of the alarm information in the intra-office device. Transfer method. 2. The two-way transmission system according to claim 1, wherein the intra-station device and the subscriber device are connected to each other by a communication line for alarm information, and the two-way transmission system includes the one-to-many connection. The alarm transfer method according to claim 1, wherein