JPH0817512B2 - Device abnormality monitoring method for information transmission device - Google Patents

Description

The present invention relates to a device abnormality monitoring method for an information transmission device that monitors a device abnormality of a general information transmission device or a remote control monitoring device.

[Prior art]

Conventionally, as a technique in such a field, there has been one disclosed in “Electronic Navigation Research Institute Report”, No. 51, pp. 3 to 33, Ministry of Transport, Electronic Aviation Law Research Institute.

FIGS. 2A and 2B are block diagrams showing the configuration of the conventional remote monitoring system. The remote monitoring system shown in FIG. 1A is configured with the monitoring devices 21-1, 21-2, ... Of the monitoring station 21.
..., 21-N, monitored station 22 including terminal equipment and monitoring equipment 22
-1,22-2, ..., 22-N is connected 1: 1.
Further, the remote monitoring system shown in FIG.
Is a system in which one monitoring device is provided, and the monitoring device and the monitored stations 22-1, 22-2, ... .

Since the method shown in FIG. 2 (a) is expensive, when the number of monitored stations is large, the method generally used is 1: N shown in FIG. 2 (b).

[Problems to be solved by the invention]

In the remote monitoring system with the above-mentioned conventional configuration, when a failure occurs in the monitoring station 21, the status of the monitored stations 22-1, 22-2, ..., 22-N becomes completely blind and the monitored station 22 -1 to 22
There is a problem in that it becomes impossible to grasp the status of which monitored station among N has the urgent information that should be transmitted to the monitoring station 21.

The present invention has been made in view of the above points, eliminates the above-mentioned problems, and even if a failure occurs in the monitoring station, the monitored station side detects the failure, and the station number and status change of the monitored station. The purpose of the present invention is to provide a device abnormality monitoring system for an information transmission device, in which the importance level of the information transmission device is quickly transmitted in stages, and appropriate processing in operation and maintenance can be performed as quickly as possible, and which is inexpensive.

[Means for solving problems]

In order to solve the above-mentioned problems, the present invention provides an information transmission device in which a monitoring station and a monitored station are connected by a transmission path, and information is transmitted between the monitoring station and the monitored station by an FS signal. The information of the fault of the monitoring station and the information of the importance of the state change of the monitored station are added to the
An alarm generator for transmitting using a push button signal different from the FS signal is provided, and an alarm receiver for receiving a push button signal from the alarm generator is provided on the monitoring station side. .

[Action]

According to the present invention, by adopting the above configuration, even if a failure occurs in the monitoring station, the monitored station detects the failure and divides the station number of the monitored station itself and the importance of the state change in stages. Since it is quickly transmitted by the alarm generator and received by the alarm receiver on the monitoring station side, appropriate processing in terms of operation and maintenance can be performed as quickly as possible.

〔Example〕

 An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing the system configuration of an information transmission device for implementing the device abnormality monitoring system according to the present invention.

In the figure, 1 is a controlled device, 2 is a monitored station to which the controlled device 1 is connected, 3 is an alarm generator connected to the monitored station 2, 4 is a transmission line for transmitting signals, and 5 is a transmission line. The monitoring station device 6 is an alarm receiver 6 that receives an alarm signal generated from the alarm generator 3. Although a plurality of monitored stations 2 are provided via the transmission path 4, they are omitted in the drawing.

In the information transmission device having the above configuration, the monitored station 2 constantly exchanges information with the monitoring station device 5 via the transmission line 4 by the FS communication method. It is possible to detect, and when a state change occurs in the controlled device 1, the monitored station 2 outputs a command to the alarm generator 3. The alarm generator 3 is P ・ B
It has a function of outputting signals (bush / button signals), and sends out P / B signals of the required number of digits (station number of own station, importance of state change, etc.) to the transmission line 4. The alarm receiver 6 has a function of receiving the P / B signal and discriminating the station number of the monitored station 2 which is generating the P / B signal and the importance of the state change. By receiving the signal, it is possible to know which monitored station 2 has the information to be transmitted to the monitoring station device 5 and to judge the importance of the state change. This will speed up the maintenance system. For example, if the station number of the monitored station 2 is "01", the importance of the state change is classified into 10 levels from "0 to 9" and added to the next third digit. The device is monitored by sending out and receiving the signal at the alarm receiver 6.
The signal generated from the alarm generator 3 is an AC signal different from the FS signal.

With the above configuration, when the monitored station 2 detects a failure in the monitoring station apparatus 5 and there is information that the monitored station 2 needs to transmit to the monitoring station apparatus 5, how important is that importance? It is determined whether or not the information is transmitted to the alarm receiver 6 on the monitoring station side, and the alarm receiver 6 determines the station number of the monitored station 2 in which the alarm signal is generated and its importance. As in the conventional case, the state of the monitored station 2 is not blindly recognized when the monitoring station device 5 fails.

It should be noted that the device abnormality monitoring method of the information transmission device according to the present invention can be implemented easily and inexpensively by simply providing the alarm generator 3 on the monitored station side and the alarm receiver 6 on the monitoring station side, and thus is generally used. It is also applicable to various information transmission devices and remote monitoring and control devices.

〔The invention's effect〕

As described above, according to the present invention, when there is information that must be transmitted to the monitored station while the monitored station has detected a failure in the monitored station, the importance is added to the alarm receiver on the monitoring station side. Since it is transmitted to the monitoring station, the monitoring station side can determine the monitored station that is generating an alarm signal and the importance of the information, and build an inexpensive device abnormality monitoring method that can grasp the status of the monitored station even if the monitoring station fails. It has an excellent effect that it can be done.

Further, since the push button signal is used, there is an excellent effect that the own station address and the state change information can be easily expanded by increasing or decreasing the number of digits.

[Brief description of drawings]

FIG. 1 is a block diagram showing the system configuration of an information transmission device for implementing the device abnormality monitoring method according to the present invention, and FIG.
1A and 1B are block diagrams showing the configuration of a conventional remote monitoring system. In the figure, 1 ... Controlled device, 2 ... Monitored station, 3 ... Alarm generator, 4 ... Transmission line, 5 ... Monitoring station device, 6 ... Alarm receiver.

Claims (1)

[Claims] 1. An information transmission device that connects a monitoring station and a monitored station via a transmission line, and transmits information between the monitoring station and the monitored station by an FS signal. And an alarm generator that transmits the information of the importance of the state change of the monitored station by using a push button signal other than the FS signal by adding the address of the own station and monitoring. An apparatus abnormality monitoring system for an information transmission apparatus, wherein an alarm receiver for receiving a push button signal from the alarm generator is provided on the station side.