KR960007210B1 - Subscriber's alarm processing method for optical cable tv system - Google Patents

Abstract

The method of alarm-processing a subscriber device in an optical CATV system includes the steps of: receiving alarm messages from all subscriber devices which is under the cable broadcasting network service by an alarm receiver 51; extracting the content of the alarm message and the natural number of the corresponding subscriber from the received alarm message by a failure information processor 42 and generating failure information; and testing the failure information of the subscriber device again and requesting a repair of the corresponding subscriber device by a test function section 44 when the alarm message still exists.

Description

How to handle subscriber device alerts in CATV systems.

1 is an optical CATV system structure to which the present invention is applied.

2 is a structural diagram of a maintenance system according to the present invention.

3 is a software block diagram of a maintenance function of the optical CATV maintenance system according to the present invention.

4 is an overall processing flow diagram in accordance with the present invention.

5 is a processing flowchart of the alarm receiver according to the present invention.

6 is a processing flowchart of a failure information processing unit according to the present invention.

7 is a processing flowchart in a test arrangement function according to the present invention.

* Explanation of symbols for main parts of the drawings

1: headend 2: central station

3: distribution center 4: subscriber

5: broadband distribution system 6: subscriber access device

7: subscriber station 8: optical cable

9: 600M transmission system 10: TV and stereo encoder

11: program provider 12: maintenance system

13: maintenance communication block 14: 45M device

15: synchronizer

The present invention relates to a subscriber device alert processing method of a CATV system.

The optical CATV system based on FTTH (Fiber to the Home) is a high-speed bidirectional communication rather than simple distribution using digital synchronous transmission method rather than analog method. In addition to providing distribution services, it is also possible to provide current telecommunication services such as telephone, method / disaster prevention, and remote meter reading.

The maintenance system, which is one of the subsystems of the optical CATV system, consists of maintenance and operation management in terms of business functions.

In a conventional coaxial CATV or telephone and other transmission service systems, maintenance work has been initiated only when a subscriber directly signals a failure in case of a failure of a subscriber's premises device.

This is limited to the passive management of the subscriber in the axis of providing the service, and also has a problem that the non-expert subscriber must rely on the reasoning according to the external slander explanation for the cause of the failure.

The present invention devised to solve the problems of the prior art as described above, the burden of the report and the point of failure can be traced that the actual alarm message that causes the failure before the subscriber's failure report is quickly and accurately delivered to the maintenance system It is an object of the present invention to provide a method for processing subscriber device alarm in a CATV system.

The present invention for achieving the above object is an alarm processing function divided into an alarm reception unit and a failure information processing unit, report reception function unit, test arrangement function unit, data update function unit, periodic preventive testing possible unit, maintenance work management A maintenance function unit having a function unit, a maintenance statistics function unit, a field repair tool connection function unit, a management function unit having a billing function unit, a service management function unit, a viewer information display function unit, and transmission of maintenance information Claims [1] A subscriber device alarm processing method applied to an optical CATV system for performing actual maintenance work with failure information of a subscriber device including a maintenance communication unit in charge. The alarm receiver receives the alarm message generated at any time from all the subscriber devices receiving the service by subscribing to the cable broadcasting network, and after performing the first step, the failure information processor reads the received alarm message, After extracting the unique number and the contents of the alarm message, and interpreting the alarm message of the extracted subscriber device to generate the failure information according to the second step, and after performing the second step, the trial arrangement function unit failure of the generated subscriber device After accessing the information and performing the retest, if the alarm message still exists, a third step of requesting repair of the place where the alarm message is generated is included.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention;

FIG. 1 is a block diagram of an optical CATV system capable of resolving astigmatism and providing a multi-channel, high-quality, high-reliability video service to which the present invention is applied. In the drawings, 1 is a head end, 2 is a central station, and Distribution center, 4 subscribers, 5 broadband distribution system, 6 subscriber access device, 7 subscriber station, 8 optical cable, 9 600M transmission system, 10 TV and stereo encoder, 11 program providing unit, 12 Indicates a maintenance system, 13 indicates a maintenance communication block, 14 indicates a 45M device, and 15 indicates a synchronization device.

As shown in the figure, one distribution center 3 constituting the optical CATV system can accommodate up to 1024 subscribers, and the program 11 provided at the headend 1 is 600M through the TV and the stereo encoder 10. Transmitted to the transmission system 9.

The central station 2 has a 600M transmission system 9 and a maintenance system 12 which is responsible for the overall maintenance and operation management of the optical CATV system. In the distribution center 3 connected to the central station 2 and the optical cable 8, the maintenance communication block 13, the synchronization device 15, the 45M device 14, the 600M transmission system 9, and the broadband distribution system ( 5) There is a subscriber access device 6, and there is a subscriber terminal device 7 in the subscriber premises 4.

2 is a functional structural diagram of the optical CATV maintenance system according to the present invention, which is divided into three functional units.

First, the maintenance function unit 21 includes an alarm processing function unit 31, a report reception function unit 32, a trial arrangement function unit 33, a data update function unit 34, and a periodic prevention test function unit 35. , Maintenance work management function 36, maintenance statistics function 37, on-site repair tool connection function 38 and the like.

Next, the management function unit 22 includes a charging function unit 41, a service management function unit 42, a viewer information display function unit 43, and the maintenance communication unit 23 transmits maintenance information. In charge.

The maintenance function unit 21 of the maintenance system, which is one of the subsystems constituting the optical CATV system, collects alarm messages for the maintenance work of each device, generates fault information, tests the device, and dispatches a repairman. Perform.

3 is a software block diagram of a maintenance function of the optical CATV maintenance system according to the present invention.

The subscriber device alarm processing function unit 31 further includes an alarm accepting unit 51 and a failure information processing unit 52.

The alarm receiver 51 performs a function of collecting alarm messages generated from all subscriber devices installed in the optical CATV network.

The fault information processing unit 52 extracts the subscriber device unique number and the content of the alarm message from the received alarm message, interprets the extracted alarm message of the subscriber device, and generates fault information in the case of the defined information message. do.

The test arrangement function unit 53 performs the actual maintenance work with the failure information of the subscriber device.

As described above, in order to perform the maintenance work by receiving the alarm message in the optical CATV network maintenance function unit 21, the alarm reception unit 51, the fault information processing unit 52, and the trial arrangement function unit are provided in the alarm processing function unit 31. (53) is required.

In the optical CATV system, the maintenance function 21 is present to provide subscribers with more failure detection and faster repair work.

First of all, all subscribers applying for the cable broadcasting service are required to generate a consistent alarm message for maintenance from directly related access devices or terminal devices, and as reliable as possible through the maintenance communication block of the distribution center 3. By transmitting the status information of the broadcasting network to the maintenance function unit 21, it is possible to collect alarm messages of various devices, determine the influence on the overall service according to the frequency or importance, and provide prompt action accordingly. Done.

The status information of the subscriber device of the maintenance system thus collected enables the actual error status report to be reported prior to the failure notification of the subscriber, thereby enabling the rapid status determination and the prompt repair work to be started.

These functions allocate dedicated maintenance processes according to the maintenance scheme in the optical CATV system, which enables the delivery of useful maintenance information compared to the existing service network and enables more intelligent maintenance.

4 is a process flow diagram for the alarm processing and test arrangement method of the optical CATV maintenance system according to the present invention.

The alarm processing function unit 31 is a process that is permanently performed, and is composed of a function unit for collecting alarm messages of a subscriber device generated at any time and a function unit for analyzing the contents of the collected alarm message and generating fault information. The reception unit 51 performs a function of receiving an alarm message generated at any time from all subscriber devices which are subscribed to the cable broadcasting network.

The maintenance system can send a confirmation test command for the actual condition when an alarm message is received. Then, the user's status information is actually accessed and reconfirmed (55).

The failure information processing unit 420 extracts the subscriber's unique number and the contents of the alarm message from the received alarm message and analyzes the information message of the extracted subscriber device and generates other failure information (56).

The failure information generated in this way is accessed by the trial arrangement function 44 during the maintenance work later, leading to a procedure such as a retest and a repair request accordingly (57, 58).

5 is a flowchart of processing at the alarm receiver according to the present invention.

The alarm accepting unit 51 prepares a shared memory to be used for receiving an alarm message (61), prepares to receive an alarm message (62), and then starts from the task of waiting for an alarm message of the subscriber device.

When an alarm message is generated from the subscriber access device 6 or the terminal device 7 at any time, after receiving an alarm message from the maintenance communication block 13 (63), the terminal checks whether it is an alarm message of the subscriber device and terminates. (64).

6 is a processing flowchart of a failure information processing unit according to the present invention.

First, the alarm message is read (65), and the subscriber's unique number and contents of the alarm message are extracted (66). In addition, the contents of the extracted alert message are interpreted (67), and the contents of the predefined valid alert message are checked (68).

If the investigation 68 elapsed due message is normal, a failure information queue is generated (69), and if abnormal, the process ends with leaving a record (70).

7 is a process flow diagram in a test arrangement function according to the present invention.

The failure information of the subscriber device is accessed (71) and a test command is given to the subscriber device (72) to reconfirm the actual subscriber status. The situation is then determined by receiving the correct status information from the subscriber device (73).

Check if the alarm message still exists (74) and if the confirmation (74) results in the alarm message still present, request repair of the place where the alarm message occurred (75), and if it disappears to an unconfirmed state, artificially recover the state. 76, and the entire maintenance procedure is terminated (74).

As described above, the present invention provides a useful function necessary for managing a network to be used in a subscriber device and enables various reports to a maintenance system of a service state of a subscriber, that is, with a failure report received by a subscriber in a maintenance system. Receipt of an alert message from the device prior to the notification provides the subscriber with more reliable maintenance work.

Claims (4)

Alarm processing unit 31 divided into alarm reception unit 51 and fault information processing unit 52, report reception function unit 32, test arrangement function unit 33, data update function unit 34, static mechanical room test The maintenance function unit 21 having the function unit 35, the maintenance work management function unit 36, the maintenance statistics function unit 37, the field repair tool connection function unit 38, and the charging function unit ( 41), a management function unit 22 having a service management function unit 42, a viewer information display function unit 43, and a maintenance communication unit 23 in charge of the transmission of maintenance information. A subscriber device alarm processing method applied to an optical CATV system for performing actual maintenance work with fault information; After performing the first step 55 and the first step 55 in which the alarm receiving unit 51 joins the cable broadcasting network and receives the missing message generated at any time from all subscriber devices receiving the service, the failure information processing unit ( 42) reads the received alarm message, extracts the subscriber's unique number and the contents of the alarm message, and then interprets the alarm message of the extracted subscriber device to generate failure information according to the second step 56; and After performing step 56, the test arrangement function 44 accesses the failure information of the generated subscriber device to perform retesting, and if the alarm message still exists, requesting repair of the place where the alarm message is generated. And a three-step (57, 58) method for handling subscriber device alerts in a CATV system. The method of claim 1, wherein said first step (59) comprises; Initialize the shared memory to be used for receiving the alert message, and after performing the first processes 61 and 62 and waiting for the alert message to be received, the subscriber access device 6 or the terminal at any time. An optical cable comprising a second step (63, 64) of receiving an alarm message from the maintenance communication block (13) to determine if it is an alarm message of the subscriber device in case an alarm message is generated from the device (7). How to handle subscriber device alerts in a CATV system. 2. The method of claim 1, wherein said second step (56) is performed; After reading the received alarm message and performing the first steps (65, 66) of extracting the subscriber's unique number and the content of the alarm message, the content of the extracted alarm message is interpreted to determine whether the content is a predefined valid alarm message. After performing the second processes 67 and 68 and the second processes 67 and 68, if the alarm message is normal, the third process 67 generates a failure information queue and, if abnormal, leaves the record and ends. And 70) a subscriber device alert processing method of a CATV system. 2. The method of claim 1, wherein the third step (57, 58) comprises: A first step (71 to 74) of accessing the generated failure information of the subscriber device, requesting a test to the corresponding subscriber device in order to check the actual subscriber status again, and judging the situation to see if an alarm message exists; and After performing the first steps 71 to 74, if an alarm message exists, request repair to the place where the alarm message is generated, if it disappears into an unconfirmed state, artificially perform a state recovery, and terminate when receiving a repair completion notification. And a second process (75 to 77). Subscriber device alert processing method of a CATV system.