JP2006165792A - Supervisory controller - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a supervisory controller where load of software is prevented from increasing and the number of objects to be supervised and controlled can be increased. <P>SOLUTION: The controller is provided with an S/W supervisory control part 1 performing supervisory control on the objects to be supervised and controlled 5-1 to 5-n with a fixed cycle and an H/W supervisory control part 11 performing supervisory control on the objects to be supervised and controlled with the period shorter than the supervisory control period of the S/W supervisory control part 1. Thus, the number of objects to be supervised and controlled can be increased without improving load of software in the S/W supervisory control part 1. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  This invention is implemented in, for example, a land terminal device of a submarine cable system, and accesses a plurality of monitoring control objects at regular intervals, collects alarm information and quality information, and externally notifies an alarm occurrence status and quality information. In addition, the present invention relates to a monitoring control device that transmits a maintenance signal to a monitored control object when an alarm is generated.

In a conventional supervisory control device, a supervisory control unit in which supervisory control software is installed executes supervisory control to monitor and control a plurality of monitored control targets connected to the bus. (For example, refer to Patent Document 1).
In other words, the monitoring control unit of the monitoring control apparatus monitors the status of a plurality of monitored control targets at a cycle of 100 milliseconds or less, for example.
Then, when the monitoring control unit of the monitoring control device detects the occurrence of an abnormality in a certain monitored control target, the monitoring control unit outputs a maintenance signal generation command to the maintenance signal generation unit.
When receiving a maintenance signal generation command from the monitoring control unit, the maintenance signal generation unit of the monitoring control device transmits the maintenance signal to the monitored control target.

JP 06-078361 A (page 4, FIG. 1)

  Since the conventional monitoring and control apparatus is configured as described above, one monitoring control unit monitors and controls a plurality of monitored control targets at a constant cycle, but an abnormality occurs in a certain monitored control target. When it becomes necessary to transmit a maintenance signal, or when the number of monitored control targets increases and it becomes necessary to shorten the monitoring control period per unit, the software load on the monitoring control unit increases. For this reason, there is a problem that the number of monitored control targets cannot be increased easily.

  SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and it is intended to obtain a monitoring control device that can easily increase the number of monitored control objects in a configuration that does not cause an increase in software load. Objective.

  The monitoring control apparatus according to the present invention has a cycle shorter than the monitoring control cycle of the first monitoring control unit in addition to the first monitoring control unit that performs monitoring control for a plurality of monitored control targets at a constant cycle. A second monitoring control unit that performs monitoring control on the monitored control target is provided.

  According to the present invention, in addition to the first monitoring control unit that performs monitoring control on a plurality of monitored control targets at a constant cycle, the monitored target is cycled shorter than the monitoring control cycle of the first monitoring control unit. Since the second monitoring control means for performing the monitoring control on the controlled object is provided, there is an effect that the number of monitored controlled objects can be increased without increasing the software load on the first monitoring control means. is there.

Embodiment 1 FIG.
FIG. 1 is a block diagram showing a monitoring control apparatus according to Embodiment 1 of the present invention. In the figure, the S / W monitoring control unit 1 is installed with monitoring control software, and monitored control targets 5-1 to 5-5 The monitoring control for -n is performed at regular intervals. The S / W monitoring control unit 1 constitutes a first monitoring control unit.
The communication path 2 is a network such as a LAN, for example, and the S / W monitoring control unit 1 and the I / F units 3-1 to 3-n are connected to the communication path 2.
The I / F units 3-1 to 3-n are connected to the monitored control targets 5-1 to 5-n on a one-to-one basis, and the monitored control is performed in a cycle shorter than the monitoring control cycle of the S / W monitoring control unit 1. Implement supervisory control on the target. The I / F units 3-1 to 3-n constitute second monitoring control means.

The H / W monitoring control unit 11 of the I / F units 3-1 to 3-n is configured by hardware, and the H / W monitoring control unit 11 is shorter than the monitoring control cycle of the S / W monitoring control unit 1. The monitoring control for the monitored control target is performed periodically, and monitoring information and control information indicating the result of the monitoring control are stored in the register 12, and when the occurrence of abnormality of the monitored control target is detected, the maintenance signal is Send to the monitored control target.
The registers 12 of the I / F units 3-1 to 3-n hold the monitoring information and control information output from the H / W monitoring control unit 11.
When the selector 13 of the I / F units 3-1 to 3-n receives an access request for the monitored control target from the S / W monitoring control unit 1, the connection destination to the S / W monitoring control unit 1 is sent to the delay circuit 15. When the access request to the register 12 is received from the S / W monitoring control unit 1, the connection destination for the S / W monitoring control unit 1 is set in the register 12.

Upon receiving an access request from the H / W monitoring control unit 11, the selector 14 of the I / F units 3-1 to 3-n sets a connection destination for the monitored control target in the H / W monitoring control unit 11, and S When an access request is received from the / W monitoring controller 1 via the delay circuit 15, the connection destination for the monitored control target is set in the delay circuit 15.
The delay circuit 15 of the I / F units 3-1 to 3-n performs H / W monitoring when an access request for the monitored control target is simultaneously output from the S / W monitoring control unit 1 and the H / W monitoring control unit 11. Until the access of the control unit 11 is completed, the access request output from the S / W monitoring control unit 1 is held without being output to the selector 14.

The communication paths 4-1 to 4-n connect the I / F units 3-1 to 3-n and the monitored control targets 5-1 to 5-n.
The monitored control targets 5-1 to 5-n correspond to, for example, ASIC (Application Specific Integrated Circuit) for main signal processing in the land terminal equipment, and alarm information, quality information related to the main signal, and the like are monitored.
In FIG. 1, the I / F units 3-1 to 3-n and the monitored control targets 5-1 to 5-n are described independently, but both may be mounted on the same substrate. .

Next, the operation will be described.
The H / W monitoring control unit 11 of the I / F units 3-1 to 3-n has a cycle shorter than the monitoring control cycle of the S / W monitoring control unit 1 (for example, a cycle of 100 milliseconds or less). An access request for the monitoring control targets 5-1 to 5-n is output to the selector 14.
Upon receiving an access request from the H / W monitoring control unit 11, the selector 14 of the I / F units 3-1 to 3-n determines the connection destination for the monitored control targets 5-1 to 5-n by H / W monitoring control. Set to unit 11.

As a result, the H / W monitoring control unit 11 of the I / F units 3-1 to 3-n can access the monitored control targets 5-1 to 5-n. Monitor the state of 1-5-n.
When the H / W monitoring control unit 11 grasps the status of the monitored control targets 5-1 to 5-n, the H / W monitoring control unit 11 stores monitoring information indicating the status in the register 12.
That is, the bits mapped in advance in the register 12 are changed according to the status of the monitored control targets 5-1 to 5-n.
For example, if there is no abnormality in the monitored control objects 5-1 to 5-n, the bit is set to “0”, and if there is an abnormality in the monitored control objects 5-1 to 5-n, the bit is set to “0”. Set to 1 ”.

In addition, when the H / W monitoring control unit 11 detects that an abnormality has occurred in the monitored control targets 5-1 to 5-n, for example, the main signal is disconnected, the H / W monitoring control unit 11 receives the maintenance signal. It transmits to the monitoring control object 5-1 to 5-n.
When the monitored control targets 5-1 to 5-n receive a maintenance signal from the H / W monitoring control unit 11 of the I / F units 3-1 to 3-n, for example, perform predetermined maintenance processing, Attempt to recover from an abnormal condition.

When performing control such as transmitting a maintenance signal to the monitored control targets 5-1 to 5-n, the H / W monitoring control unit 11 stores control information indicating the control contents in the register 12.
That is, the bits mapped in advance in the register 12 are changed according to the control contents for the monitored control targets 5-1 to 5-n.

On the other hand, the S / W supervisory control unit 1 executes the monitoring control software incorporated therein to perform monitoring control on the monitored control targets 5-1 to 5-n at a certain period (monitored control target 1). The cycle per unit is performed every 100 milliseconds to 1 second, for example.
At this time, when collecting the monitoring information and control information stored in the register 12 of the I / F units 3-1 to 3-n, the S / W monitoring control unit 1 sends an access request to the register 12 to I / F unit 3-1 to 3-n, when monitoring information and control information are collected directly from monitored control targets 5-1 to 5-n, monitored control targets 5-1 to 5-n To the I / F units 3-1 to 3-n.

When the selector 13 of the I / F units 3-1 to 3-n receives an access request for the register 12 from the S / W monitoring control unit 1, the connection destination for the S / W monitoring control unit 1 is set in the register 12. .
As a result, the S / W monitoring control unit 1 can access the register 12 of the I / F units 3-1 to 3-n and collects monitoring information and control information stored in the register 12. To do.

When the selector 13 of the I / F unit 3-1 to 3-n receives an access request for the monitored control target 5-1 to 5-n from the S / W monitoring control unit 1, the S / W monitoring control unit 1 Is connected to the delay circuit 15.
As a result, the S / W monitoring control unit 1 can access the delay circuit 15 of the I / F units 3-1 to 3-n, and requests access to the monitored control targets 5-1 to 5-n. Is output to the delay circuit 15.

When the delay circuit 15 of the I / F units 3-1 to 3-n receives an access request from the selector 13 to the monitored control targets 5-1 to 5-n, If the access request for the monitored control targets 5-1 to 5-n is not received, the access request for the monitored control targets 5-1 to 5-n output from the selector 13 is immediately output to the selector 14.
However, if an access request for the monitored control targets 5-1 to 5-n is received from the H / W monitoring control unit 11 at the same timing, the monitoring control of the H / W monitoring control unit 11 is prioritized. The access request output from the selector 13 is held until the access of the monitoring controller 11 is completed, and then the access request is output to the selector 14.
Upon receiving an access request from the delay circuit 15, the selectors 14 of the I / F units 3-1 to 3-n set connection destinations for the monitored control targets 5-1 to 5-n in the delay circuit 15.

As a result, the S / W monitoring control unit 1 can directly access the monitored control targets 5-1 to 5-n, and monitors the states of the monitored control targets 5-1 to 5-n.
When the S / W monitoring control unit 1 grasps the status of the monitored control targets 5-1 to 5-n, the S / W monitoring control unit 1 holds monitoring information indicating the status.
In addition, when the S / W monitoring control unit 1 detects that an abnormality has occurred in the monitored control targets 5-1 to 5-n, for example, the main signal is disconnected, the S / W monitoring control unit 1 receives the maintenance signal. It transmits to the monitoring control object 5-1 to 5-n.
When performing control such as transmitting a maintenance signal to the monitored control targets 5-1 to 5-n, the S / W monitoring control unit 1 holds control information indicating the control content.

  As is apparent from the above, according to the first embodiment, in addition to the S / W monitoring control unit 1 that performs monitoring control on the monitored control targets 5-1 to 5-n at a constant cycle, the S / W Since the H / W monitoring control unit 11 that performs monitoring control for the monitored control target is provided at a cycle shorter than the monitoring control cycle of the W monitoring control unit 1, the software of the S / W monitoring control unit 1 is configured to be provided. There is an effect that the number of monitored control targets can be increased without increasing the load.

  Further, according to the first embodiment, the H / W monitoring control unit 11 stores the monitoring information and control information indicating the monitoring control result for the monitored control target in the register 12, and the S / W monitoring control unit 1 Since the monitoring information and control information stored in the register 12 are configured to be acquired, even if the monitoring control cycle of the S / W monitoring control unit 1 is longer than the monitoring control cycle of the H / W monitoring control unit 11, The monitoring information and control information can be collected in the monitoring control cycle of the H / W monitoring controller 11.

  Further, according to the first embodiment, the monitoring control timing of the S / W monitoring control unit 1 for the monitored control target overlaps with the monitoring control timing of the H / W monitoring control unit 11 for the monitored control target. Since the H / W monitoring control unit 11 performs the monitoring control first, and the S / W monitoring control unit 1 executes the monitoring control, the H / W monitoring control unit 11 can perform the H / W even if both monitoring control timings overlap. The monitoring information and control information can be collected in the monitoring control cycle of the W monitoring control unit 11.

Embodiment 2. FIG.
FIG. 2 is a block diagram showing a monitoring control apparatus according to Embodiment 2 of the present invention. In the figure, the same reference numerals as those in FIG.
The priority control setting unit 16 of the I / F units 3-1 to 3-n constitutes priority order setting means for setting the priority order of monitoring control for the monitored control targets 5-1 to 5-n.
The delay circuit 17 of the I / F units 3-1 to 3-n is configured to set priority control when access requests for the monitored control target are simultaneously output from the S / W monitoring control unit 1 and the H / W monitoring control unit 11. When the priority set by the unit 16 is “H / W monitoring control unit 11> S / W monitoring control unit 1”, the S / W monitoring control unit until the access of the H / W monitoring control unit 11 is completed. The access request output from 1 is held without being output to the selector 14.
The delay circuit 18 of the I / F units 3-1 to 3-n sets priority control when an access request for the monitored control target is simultaneously output from the S / W monitoring control unit 1 and the H / W monitoring control unit 11. When the priority set by the unit 16 is “H / W monitoring control unit 11 <S / W monitoring control unit 1”, the H / W monitoring control unit until the access of the S / W monitoring control unit 1 is completed. The access request output from 11 is held without being output to the selector 14.

Next, the operation will be described.
Except for the operation when the monitoring control timing of the S / W monitoring control unit 1 for the monitored control target and the monitoring control timing of the H / W monitoring control unit 11 for the monitored control target overlap, the above-described first embodiment Since this is the same, only the operation when the monitoring control timing overlaps will be described here.

The priority control setting unit 16 of the I / F units 3-1 to 3-n sets the priority of monitoring control for the monitored control targets 5-1 to 5-n in advance.
That is, the priority order of the S / W monitoring control unit 1 and the H / W monitoring control unit 11 for the monitored control targets 5-1 to 5-n is set.

The delay circuit 17 of the I / F units 3-1 to 3-n sets priority control when an access request for the monitored control target is simultaneously output from the S / W monitoring control unit 1 and the H / W monitoring control unit 11. The priority set by the unit 16 is referred to.
If the priority set by the priority control setting unit 16 is “H / W monitoring control unit 11 <S / W monitoring control unit 1”, the delay circuit 17 immediately receives the access request output from the selector 13 as the selector 14. Output to.
However, if the priority set by the priority control setting unit 16 is “H / W monitoring control unit 11> S / W monitoring control unit 1”, the S / W monitoring control unit 11 continues until the access is completed. The access request output from the / W monitoring controller 1 is held, and then the access request is output to the selector 14.

The delay circuit 18 of the I / F units 3-1 to 3-n sets priority control when an access request for the monitored control target is simultaneously output from the S / W monitoring control unit 1 and the H / W monitoring control unit 11. The priority set by the unit 16 is referred to.
If the priority set by the priority control setting unit 16 is “H / W monitoring control unit 11> S / W monitoring control unit 1”, the delay circuit 18 accesses the output from the H / W monitoring control unit 11. The request is immediately output to the selector 14.
However, if the priority set by the priority control setting unit 16 is “H / W monitoring control unit 11 <S / W monitoring control unit 1”, the H / W monitoring control unit 1 continues to access H until the access is completed. The access request output from the / W monitoring controller 11 is held, and then the access request is output to the selector 14.

  As apparent from the above, according to the second embodiment, the monitoring control timing of the S / W monitoring control unit 1 for the monitored control target and the monitoring control of the H / W monitoring control unit 11 for the monitored control target. Since the monitoring control is executed in order from the monitoring control unit with the higher priority set by the priority setting unit 16 when the timing overlaps, the S / W monitoring is performed depending on the usage environment of the monitoring control device. Even when the access priority of the control unit 1 and the H / W monitoring control unit 11 is different, there is an effect that it is possible to cope with the same configuration.

BRIEF DESCRIPTION OF THE DRAWINGS It is a block diagram which shows the monitoring control apparatus by Embodiment 1 of this invention. It is a block diagram which shows the monitoring control apparatus by Embodiment 2 of this invention.

Explanation of symbols

  1 S / W monitoring control unit (first monitoring control unit), 2 communication path, 3-1 to 3-n I / F unit (second monitoring control unit), 4-1 to 4-n communication path, 5-1 to 5-n monitored control target, 11 H / W monitoring control unit, 12 register, 13 selector, 14 selector, 15 delay circuit, 16 priority control setting unit, 17 delay circuit, 18 delay circuit.

Claims (4)

  First monitoring control means for implementing monitoring control for a plurality of monitored control targets at a constant cycle, which is mounted with monitoring control software, and connected to the monitored control target on a one-to-one basis, the first monitoring control unit A monitoring control apparatus comprising: a second monitoring control unit that performs monitoring control on the monitored control target in a cycle shorter than the monitoring control cycle of the control unit.   The second supervisory control unit stores supervisory control information indicating the result of supervisory control on the monitored control target in a register, and the first supervisory control unit acquires the supervisory control information stored in the register. The monitoring control device according to claim 1.   When the monitoring control timing of the first monitoring control means for the monitored control object and the monitoring control timing of the second monitoring control means for the monitored control object overlap, the second monitoring control means first performs the monitoring control. 3. The supervisory control device according to claim 1, wherein the first supervisory control unit performs supervisory control after performing the above.   Priority order setting means for setting the priority of monitoring control for the monitored control target is provided, the monitoring control timing of the first monitoring control means for the monitored control target, and the second monitoring control means for the monitored control target The monitoring control according to claim 1 or 2, wherein when the monitoring control timings overlap, the monitoring control is executed in order from the monitoring control means with the higher priority set by the priority setting means. Control device.

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