JPS6322496B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an automatic line measuring device used in a monitoring system for a communication line under test, and in particular, a method for detecting a pilot signal set for maintenance of a communication line under test. This invention relates to improvements in automatic line measuring equipment that measures and detects failure points.

Conventional technology Conventionally, there is a technology described in Japanese Patent Publication No. 61-1947 "Transmission Quality Measuring Device", or a pilot signal measuring means is installed in the terminal station of the communication line to measure various pilot signals set for maintenance of the communication line. By measuring , abnormalities only within the terminal station were measured.

Problems to be Solved by the Invention Therefore, the line measuring device as described above detects an abnormality in the terminal station of the communication line under test by re-inspecting the pilot signal provided in the station.
Although it is possible to investigate the cause in a relatively short time, when an abnormality such as a drop in the level of the signal under test occurs at multiple terminal stations, it takes a lot of time to find the abnormality. However, there are also problems such as the need to deploy a large number of personnel to detect failure points.

The present invention has been made in view of the above circumstances, and includes:
To provide an automatic line measuring device that can promptly detect a fault in a communication line under test over two or more sections, directly measure the fault state with a main controller in the event of such a fault, and greatly contribute to improving fault monitoring capabilities. purpose.

Means for Solving the Problems The automatic line measuring device according to the present invention includes one main controller, the communication line to be measured is divided into a plurality of assigned sections, and the pilot signal of each assigned section is measured. and a plurality of sub-control devices for performing analysis, each of the sub-control devices voluntarily outputting a measurement control signal to measure the pilot signal, collect the signal, and analyze the data. An analysis means, when it is determined that there is an abnormality based on the analysis result by the signal analysis means, sends the abnormality data to the main control device, and upon receiving a measurement control signal from the main control device, the received measurement data sending means for measuring a pilot signal in accordance with a control signal and sending the measured data to the main control device, the main control device controlling two or more sub-control devices among the plurality of sub-control devices; A signal analysis means for receiving the signal of the analysis result and determining whether the communication line under test over two or more sections is abnormal or normal; The apparatus is equipped with a signal sending means for sending a command signal to the control device to receive the measured data without analyzing it, and a means for directly measuring and analyzing the pilot signal using the signal sending means.

Accordingly, in the present application, by adopting the above-mentioned means, the sub-control device measures and analyzes the pilot signal based on the measurement control signal from the main control device or on its own initiative, and then controls the main control device. Send to device. If there is an abnormality in the analysis result signals sent from two or more sub-control devices, the main control device measures the pilot signal without going through the sub-control devices to detect a wide-area fault.

Embodiment Hereinafter, an embodiment of the present invention will be described with reference to the drawings. That is, in the device of the present invention, the communication line to be measured is divided in advance into a plurality of arbitrary assigned sections based on terminal stations, and a sub-control device is provided for each assigned section. By controlling these sub-control devices, the main control device can deal with abnormal situations related to a plurality of sections. This main control device allows the intelligent center to perform autonomous measurements and monitoring, and has the function of changing the measurement order and determining priorities based on command signals.

Hereinafter, the apparatus of the present invention will be specifically explained with reference to FIGS. 1 and 2. In other words, this device actually consists of one main control device 1 installed at a central maintenance center, and a plurality of sub-control devices 2 installed at sub-maintenance centers etc. in charge of each section. Multiple pilot signal measurement devices 3 installed at the terminal station you want to monitor
It is made up of.

The main control device 1 sends a measurement control signal to one or more required sub-control devices 2, and also sends a measurement control signal to one or more sub-control devices 2 based on this measurement control signal.
comprising a signal analysis means 4 that automatically determines the point of failure based on the signal of the analysis result sent from the
The fault occurrence point, fault point occurrence time, cause, etc. obtained by the signal analysis means 4 are recorded on, for example, a recording printer 9. In addition, this main controller 1
When the signal analysis means 4 receives an analysis result signal related to two or more sub-control devices 2 and determines that it is abnormal, the signal is transmitted via the two or more sub-control devices 2 or the sub-control device 2 It has a function of sending out a command signal to cause the required pilot signal measuring device 3 to measure the pilot signal without any intervention. Therefore, in this case, the measurement signal is directly received from the pilot measurement device 3 without being analyzed by the sub-control device 2.

Next, each sub-control device 2 has a function of sending measurement control signals such as measurement items, measurement procedures, and priorities to the pilot signal measurement device 3 based on the measurement control signal 5 sent from the main control device 1. and receives the measurement signal, that is, the pilot signal, measured by the pilot signal measuring device 3, analyzes the pilot signal and the aggregated data by the signal analysis means 4, and determines whether abnormality or normality is detected based on the analysis result. A signal is sent to the main controller 1. Further, the sub-control device 2 spontaneously sends a measurement control signal to the pilot signal measurement device 3, and based on this measurement control signal, the pilot signal measurement device 3
It has the function of analyzing the pilot signal sent from the main controller 1 and its total data, and sending the signal of the analysis result to the main controller 1. When the sub-control device 2 receives a signal indicating that it will directly receive the pilot signal from the main control device 1, it drives a changeover switch to switch to main control device control, and directly exchanges signals with the pilot signal measuring device 3. It has the ability to connect in any way you want. Further, the sub-control device 2 records the signal 7 of the analysis result on the recording printer 9 similarly to the main control device 1.

The pilot signal measuring device 3 measures various pilot signals and is comprised of control equipment including a selection level meter and a computer. This measuring device 3 measures the levels of various pilot signals in the baseband of the communication terminal station, and sends the measured signals to the sub-control device 2 or the main control device 1. Therefore, the sub-control device 2 and the main control device 1 have the function of analyzing the measured pilot signal and determining the point of failure in the communication line under test.

Next, the operation of the apparatus configured as above will be explained. First, when the main control device 1 sends the measurement control signal 5 to one or more sub-control devices 2, ..., the sub-control devices 2, ... transmit the signal to the pilot signal measurement device 3 based on the measurement control signal, for example. Measurement control signal 5 including measurement items, measurement order, priority, etc.
Send out. The pilot signal measuring device 3 that receives this measurement control signal measures the pilot signal and sends it to the corresponding sub-control device 2. Here, the sub-control device 2 analyzes the measurement data sent from the pilot signal measurement device 3 and its aggregated data, records this analysis result signal 7 on the recording printer 9, and simultaneously sends it to the main control device 1. do.

When the main control device 1 receives the analysis result signal 7 from the sub-control device 2, it determines the fault setting point, fault setting time, cause, etc. based on the analysis result signal, and outputs it to a recording printer 9, etc. do. At this time, the main controller 1 controls two or more sub-control devices 2.
When an abnormality is determined from the analysis result signal from The pilot signal measuring device 3 is directly specified without going through the sub-control device 2. Here, when the sub-control device 2 receives the designation signal 8 from the main control device 1, it switches the changeover switch in the direction of control of the main control device so that the sub-control device 2 receives the measurement control signal 5 directly to its own device 2.

After confirming this switching, the main control device 1 sends a measurement control signal to the desired pilot signal measuring device 3, and measures only the pilot signal or all the pilot signals by the pilot signal measuring device 3.

On the other hand, the sub-control device 2 spontaneously sends a measurement control signal 5 to the pilot signal measuring device 3, and analyzes abnormality and normality within its assigned section based on the pilot signal from the pilot signal measuring device 3. Then, a signal 7 resulting from this analysis is sent to the main controller 1. At this time, the main control device 1 sets an abnormality related to a plurality of sub-control devices 2, and when the cause and failure point are determined, the main control device 1 reports the results to the related sub-control devices 2.

Therefore, according to the configuration of the embodiment as described above,
Except for abnormalities or emergencies, that is, when no command signal or measurement control signal is set, the changeover switch is set locally by the operator of the sub-control device 2, and the sub-control device 2 itself automatically switches the section in charge. Detailed measurement results can be analyzed at any time, and the data and analysis signals can be output to the printer 9. Moreover, an analysis result signal indicating an abnormality can be sent to the main controller 1, and subsequent operations can be performed by the main controller 1. You can leave it to On the other hand, when the main control device 1 determines an abnormality from the analysis result signals related to two or more sub-control devices 2, it directly receives the pilot signal etc. from the pilot signal measurement device 1 and analyzes it, so it can quickly detect the abnormal state. .

FIG. 3 shows an example of measuring and monitoring communication lines to be measured over a wide area (for example, land micro lines, submarine cables, etc.) using the apparatus of the present invention. In the figure, the dashed line indicates the boundary between the communication line to be measured and the automatic line measurement system. This device sends out measurement control signals using a separate line.

Effects of the Invention As detailed above, according to the present invention, it is possible to determine an abnormality in a short period of time, and, for example, apparent recovery can be completed quickly due to minor failures that can be quickly recovered, detour communication of lines, etc. Effective for detecting failure points. Further, it is possible to provide an automatic line measuring device that can sufficiently handle failure monitoring of the entire line including the section of a wide area failure, such as a land micro line, land coaxial cable, submarine relay cable, etc.

[Brief explanation of the drawing]

Figures 1 to 3 are shown to explain one embodiment of the device of the present invention. Figure 1 is a configuration diagram mainly based on central control, and Figure 2 is a configuration diagram mainly based on local control. , FIG. 3 is a diagram showing a system for measuring a communication line to be measured. 1... Main control device, 2... Sub control device, 3...
Pilot signal measuring device, 4...signal analysis means,
5...Measurement control signal, 6...Data signal, 7...
Analysis result signal, 8...Command signal, 9...Recording printer, 10...Local operation classification of sub-control device, 11...Local operation classification of pilot signal measuring device, M...Modem, μ... ...Microwave transmission terminal station.

Claims (1)

[Claims] 1. Receive signals from a plurality of maintenance pilot signal terminals provided at terminal stations of a communication line, analyze the signals, and determine whether the communication line under test is in an abnormal state or a normal state. The apparatus includes one main control device and a plurality of sub-control devices that divide the communication line under test into a plurality of assigned sections and measure and analyze the pilot signal of each assigned section, Each of the sub-control devices includes a signal analysis means that spontaneously outputs a measurement control signal, measures the pilot signal, collects the signal, and analyzes the data, and a When an abnormality is determined, the abnormality data is sent to the main controller, and when a measurement control signal is received from the main controller, the pilot signal is measured according to the received measurement control signal, and the measured data is and data sending means for sending the data to the main control device, the main control device receiving the signal of the analysis result of two or more sub-control devices among the plurality of sub-control devices, and transmitting the signal to the two or more sub-control devices. A signal analysis means for determining abnormality or normal state of the communication line under test over a section, and a signal analysis means for receiving measured data without analysis to the two or more sub-control devices when an abnormal state is determined from the signal analysis means. What is claimed is: 1. An automatic line measuring device comprising: a signal sending means for sending out a command signal to perform a pilot signal; and a means for directly measuring and analyzing a pilot signal based on the signal sending means.