JPH05252571A - Abnormality discrimination system for sequence control supervisory - Google Patents

Abstract

PURPOSE:To cope with an abnormality by quickly discriminating what package in a defective base station is abnormal by a few maintenance staffs in a supervisory maintenance station, in the supervisory system of a sequence control monitored by sequentially transmitting a serial sequence command for collecting the information of each device from one supervisory maintenance station to each station of an interchange route constituted of plural stations, and returning the state information to the supervisory maintenance station from each station in response to the command. CONSTITUTION:A sequence number(01-0p1)-[(n-1)1-(n-1)pn] indicating the constant number (p1)-(pn) of control programs controlled by the (n) pieces of slaves CPU subordinate to one master CPU is added to each package (1-n) of the plural (n) pieces of packages constituting each station 20 to be monitored. The information of a supervisory invalidity or response absence returned to a supervisory maintenance station 10 at the time of the abnormality of a certain station to be monitored 20, is subdivided also into the sequence number of the control program in the package causing the abnormality of the device of the station, and stopping a response.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a monitoring / maintenance station for centrally performing monitoring / maintenance of each station forming a wireless relay route, in order to collect status information of various devices of a terminal station or intermediate relay station of the route The present invention relates to a method of discriminating an abnormality in monitoring sequence control performed in series.

A conventional method for discriminating an abnormality in sequence control for collecting status information of each monitored station in a monitoring / maintenance station of a wireless relay route is to monitor information from each monitored station that is unmonitorable or has no response. It was displayed with and it was taking measures. However, as the number of personnel of the monitoring and maintenance station decreases as the number of unmanned relay stations increases in recent years, it is desired that the response to an abnormality of the monitored station be smoothly performed.

[0003]

2. Description of the Related Art Conventional monitoring control of a wireless relay route by sequence control, as shown in FIG. 3, when a relay route has terminal stations at both ends and relay stations in the middle, various devices of each station in the route are used. The state monitoring is performed centrally at either one of the terminal stations or another monitoring and maintenance station.
For example, the monitoring and maintenance station first issues a command in series to the monitoring device of the nearest terminal station, then to the intermediate relay station, and finally to the device of the farthest terminal station in order to receive its response. Performs sequence control to collect the status information of each station. And, for example, if the device at the farthest terminal station is faulty and information cannot be collected from that station, the monitoring and maintenance station cannot monitor the farthest terminal station or there is no response from the terminal station. Information was displayed on a station-by-station basis, and the abnormality of that terminal station was determined, and measures were taken.

[0004]

As described above, in the sequence control in the case where one monitoring and maintenance station sequentially monitors the states of the terminal stations at both ends of the relay route and the intermediate relay stations, the conventional technique is used. Then, the abnormality of the device of a certain monitored station is discriminated by displaying it in the unit of station as information indicating that the station cannot be monitored or there is no response from the station, and the countermeasure is taken. In other words, the number of stations on the relay route that are abnormal in operation can be found on a station-by-station basis at the monitoring and maintenance station. There is a problem in that it is difficult to determine and replace the normal package prepared as a spare panel in a short time under the tendency of reducing the number of maintenance personnel. An object of the present invention is to provide a monitoring and maintenance station that monitors the status of each station on a relay route by sequence control, and a small number of maintenance personnel can immediately determine which package in the device of the monitored station that has failed is abnormal. It is to realize a method of discriminating an abnormal package of each station device by discriminating and exchanging a normal package prepared as a spare package in a short time.

[0005]

As shown in the principle diagram of FIG. 1, the basic configuration of the present invention for achieving this object is that a single monitoring and maintenance station 10 as a master station is a relay route consisting of a plurality of stations. A serial sequence command for sequentially monitoring the status of each device is issued to each monitored station 20 which is a slave station of each station 20, and each station 20 responds to the serial sequence command to send its status information to the monitoring station 10.
In the monitoring method of sequence control that is monitored by returning the data to each of the monitored stations 20, for each package 1 to n of the plurality of n packages that configure the device of each monitored station 20, n master given a sequence number 01~0p ₁ ~ represents a control program for each fixed number p ₁ ~p _n in each package are respectively controlled by the slave CPU [(n-1) 1 ~ (n-1) p n] , The information in the monitoring / maintenance station 10 that cannot be monitored or has no response, which is returned to the monitoring and maintenance station 10 when a certain monitored station 20 is abnormal, causes an abnormality in the device of the station 20 and stops the response in the package Configure so that the sequence number of the program is subdivided and returned.

[0006]

According to the present invention, when an abnormality occurs in the device of the monitored station 20 which is a slave station on the relay route, it is impossible to monitor the abnormal station 20 which is transmitted to the monitoring maintenance station 10 which is the master station. Since the monitoring information without a response is subdivided into the sequence number representing the control program in the package that has actually stopped the response due to an abnormality in the device of the station 20, the monitoring information is sent to the monitoring maintenance station 10. Then, the monitored station that caused the abnormality
You can know which control program in which package of 20 corresponding devices stopped normal operation.
Therefore, even if the number of maintenance personnel of the monitoring and maintenance station 10 is small,
Immediately know the package containing the control program that caused the abnormality of the monitored station 20 that caused the abnormality, go to the station 20 that caused the abnormality with a normal package prepared as a spare package, and go for a short time. You can replace it with a normal package with.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 2 is a block diagram of an abnormality discrimination system in sequence control monitoring according to an embodiment of the present invention, in which a monitoring maintenance station 10 which is a master station and a wireless relay which is a monitored station 20 of a slave station. This is a case where the equipment at either of the terminal stations at both ends of the route or the intermediate relay station is monitored and maintained. The device of the monitoring and maintenance station 10 is composed of, for example, four packages, and the device of the monitored station 20 is composed of three packages, and slave CPUs 0 to 3 and slave CPUs controlled by the respective master CPUs. Operation is controlled by a program controlled by 0 to CPU 2. Further, the number of control programs of the slave CPU 0 included in the first package of the three packages controlled by the master CPU of the monitored station 20 is four,
An example in which the slave CPU 1 has three control programs and the slave CPU 2 has five control programs is shown. The number of the four programs controlled by the slave CPU 0 in the first package of the three packages of the monitored station 20 is given as 01,02,03,04, and the control of the slave CPU 1 in the second package is given. The number of the three programs to run is 1
The numbers of the five programs controlled by the slave CPU2 in the third package are given as 21,22,23,24,25. The program numbers controlled by the slave CPUs 0 to 3 in the four packages controlled by the master CPU of the monitoring and maintenance station 10 are also assigned in the same manner. Then, for example, the first package of the monitoring and maintenance station 10 and the first package of the monitored station 20 are connected by an appropriate communication line, and a command signal for collecting information from the monitoring and maintenance station 10 to the monitored station 20 and the command signal. And a response signal in the opposite direction. The other packages of the monitoring and maintenance station 10 and the monitored station 20 are used, for example, for displaying a monitor result on each station. Then, when an abnormality occurs in the device of the monitored station 20, the monitoring information indicating that the abnormal station 20 cannot be monitored or is not responding is transmitted to the monitoring maintenance station 10 by the first package and the communication line. For example, the sequence number "22", which represents the second control program in the third package that has actually caused an abnormality in the device and stopped responding, is sent to the monitoring and maintenance station 10. Maintenance station 10
Then, it can be known that the second control program in the third package of the device of the monitored station 20 that has caused an abnormality has caused an abnormality and stopped normal operation. Therefore, even if the number of maintenance personnel of the monitoring and maintenance station 10 is small, the third package operating by the control program "22" that caused the abnormality of the device of the station 20 that caused the abnormality is immediately known and prepared as a spare package. You can take a normal package and go to the station 20 where the abnormality occurred and replace it with a normal package in a short time.

[0008]

As described above, according to the present invention, even when the maintenance and monitoring of the relay route is performed by a small number of people, the replacement of the spare package with the spare package in the event of a failure of the monitored station can be performed smoothly. The effect is obtained.

[Brief description of drawings]

FIG. 1 is a principle diagram showing a method of assigning a control program number in each package of a device of a monitored station that defines a basic configuration of an abnormality determination method in monitoring sequence control according to the present invention;

FIG. 2 is a configuration diagram of an abnormality determination method in monitoring sequence control according to an embodiment of the present invention,

FIG. 3 is an explanatory diagram of an abnormality determination method in conventional sequence control monitoring.

[Explanation of symbols]

 10 is a monitoring and maintenance station, and 20 is a monitored station.

Claims (1)

[Claims] 1. A monitoring / maintenance station (10) issues a sequence command to each station of a relay route consisting of a plurality of m stations in order to collect information of each device, and each station responds to the command. In the monitoring method of sequence control monitored by returning status information in response to the monitoring and maintenance station, for each package (1 to n) of a plurality of n packages constituting the device of each station to be monitored, A fixed number (p _{1 to} p _n ) controlled by each of the n slave CPUs that are subordinate to one master CPU
Sequence number representing the control program (01~0p ₁₎ ~ [(n
-1) 1 to (n-1) p _n ] is added, and the information indicating that the station cannot be monitored or is not responding is returned to the monitoring and maintenance station when the apparatus of a certain monitored station is abnormal. An abnormal identification method in the monitoring of sequence control, which is characterized in that the sequence number of the control program in the package that has stopped responding due to the above abnormalities is subdivided and returned.