JP2003076401A - Operation monitor system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem that identification of an operator is impossible in a current operation monitor system using a password set per each equipment to prevent the operation by a person not concerned and that administration of operating equipment corresponding to the business content is impossible and it is difficult to prevent the operation and setting of wrong equipment. SOLUTION: In this operation monitor system, the personal information corresponding to each of several operators is used to authenticate the operator inside of a sequencer on the basis of the information, and the operation of equipment to be controlled is allowed to the approved operator. The operation in response to the business content of each operator is administrated, and the operation order and/or the content of a change thereof of the equipment as an object to be controlled set in the sequencer is stored/output as the operation record with the personal information of the operator performing the operation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operation monitoring system for various plants, and in particular, allows the operator to be identified and handled based on the operator's personal information and has a function of recording a driving operation history. The operation monitoring system.

[0002]

[Related technical background] Pumps that make up the plant,
Control of various devices such as control valves and heaters is often performed by a sequencer installed near the device to be controlled. A preset operation procedure is registered in this sequencer in order to cause the controlled device to perform a predetermined operation. Further, an operation terminal such as a touch display is provided near the sequencer in order to register the change / correction of the driving operation procedure or to directly operate the device to be controlled.

Generally, the number of control target devices in a plant is large, and therefore the number of sequencers for controlling these control target devices is also increasing. For this reason, a control and monitoring device, which plays a role of putting together a sequencer group, is provided to configure a plant operation and monitoring system. The control and monitoring device has a function of monitoring the operation of the control target device and setting the operation sequence of the control target device in the sequencer and changing the set operation sequence.

Of course, the setting of the operating procedure for the sequencer is not limited to the change of the sequence program incorporated in the sequencer. For example, operations such as automatic / manual switching of individual controlled devices, manual pump operation / stop, and valve opening / closing are also included. Further, the change of the set operation procedure includes an operation of changing various set values set for the operation of the plant. Specifically, it is a change operation such as a control target value such as pH and water level, a control set value for determining the pump start / stop water level and the operation of the pump valve, and an alarm set value for determining an alarm.

The operation monitoring system having such a structure needs to be handled by a skilled person having sufficient knowledge about operation. In other words, if a person other than the related person who does not have operation knowledge is inadvertently operated, the operating state of the equipment that constitutes the plant becomes abnormal, which may cause a serious trouble. For this reason, a method of preventing an inadvertent operation by a person other than a person concerned is adopted by requiring a password to be input prior to the operation / setting.

[0006]

However, the above-mentioned method using a password has a drawback in that it is not known who operated the operation monitoring system because the password set for each controlled device or sequencer is used. Further, since the password is used, there is a concern that, for example, the operation management according to the work content cannot be performed, and the wrong device operation or setting is performed.

Furthermore, when the operating state of the plant becomes abnormal, it is not easy to determine whether it is due to an operator's human error or an abnormality in the equipment to be controlled. There was a concern that it would take time to investigate the cause and that the response would be delayed. In order to achieve such a subject, the present invention stores a driving operation procedure of a control target device set in a sequencer and / or a change content thereof as driving operation history together with personal information of an operator who performed the operation. It is to provide an operation monitoring system capable of performing.

[0008]

In order to achieve the above-mentioned object, an operation monitoring system according to claim 1 of the present invention comprises a sequencer for controlling the operation of a predetermined controlled device according to a set operation procedure. And a control and monitoring device having a monitoring function for monitoring the operation of the controlled device and an operation function for setting a driving operation procedure of the controlled device in the sequencer and changing the set operating procedure. In the sequencer, personal information storage means for storing personal information of an operator who is permitted to handle the sequencer, for example, personal ID, personal information input from the operation terminal or the control and monitoring device, and the personal information. Personal authentication that collates personal information registered in advance in the storage means and permits handling of the sequencer only when the personal information matches And a stage, the control and monitoring device,
An operation history storage unit for storing a driving operation procedure of the controlled device set in the sequencer and / or a change content thereof as driving operation history together with the personal information of the operator who performed the operation. To do.

Further, the personal information storage means of the operation monitoring system according to claim 2 of the present invention stores the personal information of a plurality of operators who are permitted to handle the sequencer according to the business content of each operator. The personal authentication means limits the changeable content of the operation procedure of the controlled device set in the sequencer according to the authenticated personal information and permits its handling. It is characterized by comprising means.

Further, in the operation monitoring system according to claim 3 of the present invention, the control monitoring device stores a change in the operating state of the controlled device as an operation history, and the operation history is the operation history storage means. It is characterized by comprising means for outputting together with the driving operation history stored in.
Therefore, according to the present invention, the careless operation of the device by a person other than the related person is prevented, and the identification of the operator and the change in the operating state of the device are stored as a driving history and output together with the driving operation history. It becomes possible.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An operation monitoring system according to the present invention will be described below with reference to the drawings. FIG. 1 shows a sequencer 10 and a control / monitor device 20 as an embodiment of the present invention.
FIG. 3 is a block diagram showing a schematic configuration of an operation monitoring system having a configuration in which a network 40 and a network are mutually connected.

The sequencer 10 is provided with a personal information storage section 11 for storing personal information of an operator who is permitted to handle the sequencer. As a method of using an ID code and a personal identification code for each operator as this personal information, the personal information storage unit 11 of the sequencer 10
For example, personal information is stored in the table format shown in FIG. Further, the sequencer 10 is provided with an operation terminal unit 12 for setting or changing the operation procedure of the control target device 30 or directly operating the control device. When the personal information is input from the operation terminal unit 12, the sequencer 10 causes the authentication unit 13 to collate the input personal information with the personal information stored in the personal information storage unit 11 in advance. Then, when the personal information matches, the sequencer 10 permits handling of the sequencer 10 and gives an operation command to the operation command unit 14. If the personal information does not match,
The sequencer 10 displays that on the operation terminal unit 12,
Prompt for correct personal information.

Of course, a method of giving an operation command to the sequencer 10 from the control and monitoring device 20 connected to the network 40 and performing the handling operation of the sequencer 10 may be used. Even in this case, as described above, only the operator permitted by the personal authentication means inside the sequencer 10 is permitted to handle the sequencer 10. By the way, in order to maintain the uniqueness of the personal ID, when registering new personal information in the control monitoring device 20, a registration processing unit that performs registration after confirming that there is no duplicate personal ID in the personal information storage unit 11 is provided. It is preferable to provide.

On the other hand, the control monitoring device 20 is connected to each sequencer 10 via the network 40. Therefore, the control monitoring device 20 can monitor the operator of the sequencer 10 and the handling of the sequencer 10 performed by the operator and the operating status of the equipment. Also,
The control and monitoring device 20 includes a history information storage unit 21, and the monitor information is stored in the history information storage unit 21 together with time information in time series. Then, the operator issues a history information output request to the control / monitoring device 20 as necessary, so that the history information output unit 22 shows the operator and the handling status of the sequencer 10 performed by the operator and the operation status of the equipment. It can be output in time series.

Now, the sequencer 1 configured as described above
The details of 0 are configured as shown in FIG. The sequencer 10 has a CP for controlling the operation of the sequencer 10.
The U unit 15 is provided, and the CPU unit 15 controls each component of the sequencer 10. Further, in the vicinity of the sequencer 10, the operation procedure and / or the change contents thereof are input,
Alternatively, an operation terminal unit 12 such as a touch display, a portable programming tool or a PC (personal computer) programming tool is provided for handling the sequencer 10 such as directly operating a control device. From the operation terminal unit 12, for example, an ID code or a personal identification code is input as personal information before handling the sequencer 10. Of course, a method of storing the personal information in an ID card or an IC card may be adopted, and the operation terminal unit 12 may be provided with an ID card reading function or an IC card reading function for acquiring the information.

Further, the personal information storage unit 11 provided inside the sequencer 10 is a read / write free RAM.
Or a read-only ROM, or an auxiliary storage device such as a disk device. When the personal information storage unit 11 is configured by a RAM, an auxiliary storage device, or the like, the personal information is input in advance from the operation terminal unit 23 of the control and monitoring device 20 described later, and the personal information is registered in the personal information storage unit 11. Has been done. Of course, the personal information may be registered in the personal information storage unit 11 from the operation terminal unit 12 provided in the sequencer 10. Alternatively, the personal information storage unit 11
In the case where is constituted by a read-only storage element such as a ROM, personal information may be written in the ROM in advance although not shown.

After the personal information is authenticated and the handling of the sequencer is permitted, the operation terminal unit 12
From this, it becomes possible to input a driving operation procedure of the controlled device 30 and / or a change content thereof. In addition, the operating state of the controlled device is detected by the state detecting unit 16,
It can also be displayed on the operation terminal unit 12. Next, the processing procedure in the sequencer 10 will be briefly described with reference to the flowchart of FIG.

First, the CPU section 15 detects whether or not the ID information is input from the operation terminal section 12. Then C
The PU unit 15 reads the ID code [step S2] on condition that the ID code is input [step S1]. Next, the CPU unit 15 waits for the input of the personal identification code assigned to each operator. When the CPU section 15 recognizes the input of the personal identification code [step S3], the CPU section 1
5 reads the personal identification code [step S4]. And C
The PU unit 15 causes the authentication unit 13 to collate the input ID code and personal identification code with the personal information stored in the personal information storage unit 11 [step S5].

When the authentication matches, the CPU section 15 displays an operation permission display on the operation terminal section 12 [step S
6]. On the other hand, when the authentication of the personal information does not match, the CPU unit 15 displays on the operation terminal unit 12 that the operation is not permitted [step S10] and waits for the input of a new ID code.
When the authentication confirmation of the personal information is completed, the CPU unit 15 waits for the input of the driving operation procedure and / or the change content thereof from the operation terminal unit 12 [step S7]. When the operation procedure and / or its modification contents are input, the CPU unit 1
5 performs a process suitable for each input, and gives the command to the controlled device 30 via the operation command unit 14.

When the operation procedure and / or its modification contents are not input within a fixed time, the CPU section 15 inputs a new ID code in order to prevent an operation by the operator. Wait for [step S9]. The time value used for the determination in step S9 is preferably settable by the control monitoring device 20. On the other hand, the control and monitoring device 20 is configured in detail as shown in FIG. The control and monitoring device 20 is provided with a CPU section 23 for controlling the operation of the control and monitoring device 20. Further, the control and monitoring device 20 is provided with a keyboard or the like as an operation input unit 29 for inputting a driving operation procedure and / or its modification contents or directly operating the control device.

Further, in the control / monitoring device 20, personal information for setting permission or non-permission of the operation of the controlled device 30 in the personal information storage section 11 provided in the sequencer 10. Personal information registration section 2 to register
5 are provided. In addition, a network I / F is provided from the operation input unit 29 of the control and monitoring device 20 to the sequencer 10.
It is also possible to input the operation procedure of the controlled device 30 and / or its modification contents via the unit 42 and the network 40. At this time, the operating state of the controlled device 30 is displayed via the network 40 in the device state display unit 2
It can be displayed on the display unit 26 after being processed in 8.
In addition, the display unit 26 includes the personal information registration unit 2
The personal information registered from 5 to the sequencer 10 can be processed and displayed on the personal information display section 27 via the network 40.

On the other hand, the control monitoring device 20 is provided with a history information storage section 21 for storing the history information on the input of the driving operation procedure and / or its modification contents and the driving state of the controlled device 30. This history information is output from the history information output unit 22 as shown in FIG.
It is possible to output the operation history performed by the operator together with the operation history of 1. Further, as shown in this figure, the last manual operation status of the operator may be separately displayed so that the response status of the plant at that time can be easily understood. By displaying the operation state history and the operation history on the same screen in time series as shown in FIG. 6, it is easy to determine whether or not the cause of the change in the operation state such as the occurrence of an alarm is due to the operation of the operator.

Next, the processing procedure in the control and monitoring device 20 will be briefly described with reference to the flowchart of FIG. CP first
The U unit 23 detects whether the ID information is input from the personal information input unit 24. Then, the CPU unit 23, on condition that the ID code is input [step S21],
The ID code is read [step S22]. Then CP
The U unit 23 waits for the input of the personal identification code assigned to each operator. When the CPU 23 recognizes the input of the personal identification code [step S23], the CPU 23 reads the personal identification code [step S24]. Then, the CPU section 23 transmits the personal information including the input ID code and personal identification code to the sequencer 10 that is the operation target [step S25], and inquires about the personal information.

When the sequencer 10 receives the personal information inquiry request [step S26], the CPU 15 in the sequencer 10 determines whether the personal information matches the personal information stored in the personal information storage 11 in the sequencer 10. Makes a determination [step S27]. If the personal information matches, the CPU unit 15 sets the operation permission flag [step S28], and if the personal information does not match, the operation permission flag is not set [step S29]. Next, the sequencer 10 transmits the authentication result to the control monitoring device 20 [step S3
0].

The authentication result transmitted from the sequencer 10 is received by the control and monitoring device 20 [step S31],
The CPU unit 23 determines whether the operation permission flag is set [step S32]. And the CPU section 23
Under the condition that the operation permission flag is set [step S32], the processing appropriate for the operation input from the operation input unit 29 is executed, and therefore the processing is continued with the sequencer 10 [step S33].

On the other hand, if the operation permission flag is not set, the CPU section 23 waits for the input of a new ID code [step S32]. That is, the personal information input from the personal information input unit 24 provided in the control monitoring device 20 is authenticated by the sequencer 10, and the operation procedure of the controlled device 30 and / or the change content thereof is input according to the authentication result, or It is permitted to directly operate the controlled device 30.

In the control / monitoring system thus configured, however, the operation command input from the operation terminal unit 12 provided near the sequencer 10 and the operation input unit 29 of the control / monitoring device 20 are input. Operation instructions may be given to the same controlled device 30 at the same time. Therefore, during execution of either one of the operation commands, exclusive control is performed to ignore the other operation command. For example,
The operating procedure of the sequencer 10 is configured so that the operation of the operation input unit 29 from the control and monitoring device 20 is ignored when the operation is performed from the operation terminal unit 12 provided in the sequencer 10. Alternatively, the operation input from the operation terminal unit 12 of the sequencer 10 provided in the vicinity of the control target device 30 may be configured to have the highest priority.

[0028] Further, depending on the priority assigned to each operation level of the operator and the work content of the operator, the driving operation procedure and / or the change content thereof are input, or the priority difference of the operation of the control-target equipment 30 directly, and the like. The target of the controlled device 30 may be limited. In this case, for example, as shown in FIG. 8, the level of the controlled device 30 and the operation content of the controlled device 30 is set for each operator, and the sequencer 10 determines whether the operation is permitted or not.

In the operation monitoring system thus constructed, the password provided for each controlled device is not used,
Perform device operations based on personal information. Therefore, it is not necessary to manage the password set for each control target device, and the operator need not remember the password of the control target device. This is particularly useful in a large-scale plant that uses many sequencers.

Further, according to the present invention, the personal authentication means can limit the devices to be controlled due to the difference in the proficiency level of the operator. For example, allow a person skilled in device operation to operate all control target devices and change the control settings, and conversely restrict operators who are inexperienced in device operation to limit the control target devices and change the control settings. And so on. In addition, the personal authentication means can limit the devices to be controlled according to the work content of the operator.

Therefore, it is possible to prevent erroneous operation or erroneous setting by an operator having a low skill level of equipment operation, or erroneous equipment operation outside the scope of work, and greatly improve the safety and reliability of the operation monitoring system as a whole. Can be improved. Furthermore, since it has history information that holds the response states of the operator who performed the equipment operation and the equipment to be controlled in time series, it is possible to effectively grasp the situation when an abnormality occurs in the plant, for example. . Therefore, it is possible to promptly perform the plant abnormality analysis and the response.

The above example is an operation monitoring system having a network configuration in which a control monitoring device, a sequencer, and an operation terminal are combined, but an operation monitoring system having a plurality of control monitoring devices instead of the operation terminal may be used. . Of course, instead of the control and monitoring device, an operation and monitoring system in which an operation terminal and a sequencer are combined may be configured.

Alternatively, it may be applied to an operation monitoring system that does not form a network. For example, it may be applied to a control and monitoring device in which a control and monitoring device and a sequencer are integrated. In addition, the present invention can be variously modified and implemented within the scope of the invention.

[0034]

As described above, in the operation monitoring system of the present invention, since there is personal information associated with each of a plurality of operators, the sequencer authenticates the individual based on this information, and is permitted. Only the operator can operate the device. Further, since the device operation level according to the business content of the operator based on the personal information is provided, the device operation according to the business content can be performed. Furthermore, since it has history information that holds the response states of the operator who has performed the equipment operation and the equipment to be controlled in time series, it is possible to effectively grasp the situation when an abnormality occurs in the plant, for example. The practically great effect such as the improvement of the reliability can be obtained.

[Brief description of drawings]

FIG. 1 is a block diagram showing a schematic configuration of an operation monitoring system according to an embodiment of the present invention.

FIG. 2 is a diagram showing an identification number table formed in a sequencer according to an embodiment of the present invention.

3 is a block diagram showing a schematic configuration of a sequencer in the operation monitoring system shown in FIG.

4 is a flowchart showing the operation of the sequencer shown in FIG.

5 is a block diagram showing a schematic configuration of a control monitoring device in the operation monitoring system shown in FIG.

FIG. 6 is a diagram showing an operation / motion history display according to the embodiment of the present invention.

7 is a flowchart showing the operation of the control and monitoring device shown in FIG.

FIG. 8 is a diagram showing an identification number table having operation levels formed in a sequencer according to an embodiment of the present invention.

[Explanation of symbols]

10 Sequencer 11 Personal information storage 12 Operation terminal 13 Authentication Department 14 Operation command section 15 CPU section 16 State detector 20 Control and monitoring device 21 History information storage section 22 History information output section 23 Operation terminal 24 Personal information input section 25 Personal Information Registration Department 26 Display 27 Personal information display section 28 Equipment status display 29 Operation input section 30 controlled devices 40 networks 41, 42 Network I / F

   ─────────────────────────────────────────────────── ─── Continued front page    F-term (reference) 5B085 AE01 AE23 BG04                 5H209 AA01 BB02 BB03 CC03 CC13                       FF06 GG08 HH30 JJ09                 5H220 AA01 BB09 CC05 CX06 HH04                       JJ12 JJ28 JJ53 KK04 LL04                       MM03                 5H223 AA01 CC03 CC08 DD03 EE01                       EE08

Claims (3)

[Claims] 1. A sequencer for controlling the operation of a predetermined controlled device according to a set operating procedure, a monitoring function for monitoring the operation of the controlled device, and a sequence of operating the controlled device for the sequencer. A personal computer that stores personal information of an operator who is permitted to handle the sequencer, and a control and monitoring device that has an operation function of setting and changing the set operation procedure. The storage means collates personal information input from the operation terminal or the control monitoring device with personal information registered in advance in the personal information storage means, and only when the personal information matches, the sequencer And a personal authentication means for permitting the handling, wherein the control and monitoring device has a driving operation procedure of the control target device set in the sequencer and Or operation monitoring system characterized in that it comprises the operation history storage means for storing the changes, as the driving operation history along with the personal information of the operator who performed the operation. 2. The personal information storage means stores personal information of a plurality of operators who are permitted to handle the sequencer,
The personal authentication means manages according to the work content of each operator, and the personal authentication means can change the operation procedure of the controlled device set in the sequencer according to the authenticated personal information. The operation monitoring system according to claim 1, wherein the operation is restricted and the handling is permitted. 3. The control / monitoring device comprises means for storing a change in the operating state of the controlled device as an operation history and outputting the operation history together with the operation operation history stored in the operation history storage means. The operation monitoring system according to claim 1.