JPH0713603A - Process monitor controller - Google Patents

Abstract

PURPOSE:To improve the safety (security) of the whole device by constituting the controller so that even if a third person of the outside or an inexperienced operator operates it carelessly, its operation is rejected. CONSTITUTION:This monitor controller is provided with an operation level table 7 for storing an operation level permitted in advance to every operator, a personal data memory for storing ID information and a password number at every operator, and an operation history memory 8 for recording time sequentially the executed operation contents and the operator. In such a state, it is confirmed that the inputted ID information and password number are stored in the personal data memory, only an operation corresponding to the operation level permitted to the operator concerned of the operation level table, in the operations executed after the confirmation is received, its operation contents are executed, and also, written in the operation history memory. Moreover, in accordance with necessity, operation history stored in the operation history memory is outputted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a process monitoring control device for monitoring and controlling the process state of various plants,
In particular, the present invention relates to a process monitoring control device in which a third person or an inexperienced operator cannot inadvertently operate the device to improve the safety (security) of the entire device.

[0002]

2. Description of the Related Art In a process monitoring control apparatus for monitoring and controlling a process state of a plant in a factory, when a third party or an inexperienced operator who intrudes from the outside carelessly operates, each device constituting the plant operates abnormally There is a concern that it will fall into a state and seriously hinder plant operation.

Therefore, in order to prevent such a situation, each operator who operates the process monitoring control apparatus is assigned an operation level permitted by the operator. And prepare different keys for each operation level,
The operator inserts the key given to him into the key hole of the operation panel and then operates it.

In this case, when each key is inserted into the keyhole, only the operation permitted for this key can be executed. For example, for a normal monitoring worker, it is possible to perform a minimum operation such as switching the monitor screen of the operating state of each device that constitutes the plant, and the management person starts each device.
It is set so that it can be stopped and maintenance operations can be performed.

By allowing each operator to carry a different type of key, not only an external third party cannot operate, but also an inexperienced operator erroneously executes an important operation. To be prevented.

[0006]

However, the above process monitoring and controlling apparatus also has the following problems to be solved. That is, even if another person uses the operation key, the process monitoring control device cannot identify the user of the key, which causes a disadvantage of accepting the operation permitted for this key. Therefore, it cannot be said that the safety has been completely secured.

Further, since the operation history executed by each operator is not stored and held, for example, when an abnormality occurs in the plant, whether the abnormality is caused by the abnormality of the plant itself or the operator's human error is caused. It is difficult to judge whether it is due to a physical operation error. Therefore, there is a concern that the cause of the abnormality cannot be immediately investigated when the abnormality occurs, and the response measures may be delayed.

The present invention has been made in view of the above circumstances, and requires each operator to input ID information and a personal identification number, and stores the operation level for each operator in the apparatus. Even if a third person or an inexperienced operator inadvertently operates, the operation content can be prevented from being executed, the safety of the entire apparatus can be significantly improved, and the operation history can be confirmed later. An object is to provide a process monitoring control device.

[0009]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention relates to a process monitoring control apparatus for monitoring and controlling the operating state of a controlled object, and an operation of storing an operation level previously permitted for each operator. A level table, a personal data memory that stores ID information and a personal identification number for each operator, and personal information confirmation means that confirms that the input ID information and personal identification number are stored in the personal data memory. Of the operations performed after the confirmation of the personal information, only the operation corresponding to the operation level permitted by the operator in the operation level table is accepted, and the selection execution processing means for executing the operation content, and the executed operation. An operation history memory for recording the contents and the operator in time series, and an operation history output means for outputting the operation history stored in the operation history memory in response to a read command. It includes those were.

[0010]

In the process monitoring and control apparatus having such a configuration, each operator who operates the monitoring and control apparatus is given ID information and a personal identification number for identifying himself / herself. ID
The information is recorded and described in, for example, an ID card. Further, each operator is assigned an operation level (operation type) permitted by the operator. The personal data and the operation type allocation results for each operator are stored in the personal data memory and the operation level table.

Therefore, when one operator operates the process monitoring control device, it is necessary to key in the personal identification number after inserting the ID card, for example. Only when the input personal identification number matches the personal identification number stored in the personal data memory, only the operation of the operation level corresponding to the operator stored in the operation level table can be executed. Therefore, the safety of operation is improved.

The contents of the executed operation and the operator are stored in the operation history memory in time series. Therefore, for example, by reading the stored contents of the operation history memory when an abnormality occurs, the cause of the abnormality occurrence can be determined in a short time.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a schematic configuration of a process monitoring control apparatus of the embodiment. In this process monitoring control device, with respect to the device main body 1 that executes various information processing,
An operator information input device such as a card reading device and a keypad 2, a display device such as a CRT display device 3, an operation panel 4, various control target devices constituting a plant 5, a printer for printing out various data such as an operation history 5 etc. are connected.

The device body 1 is composed of a kind of information processing device such as a computer. An operation level table 7 and an operation history memory 8 are formed in the internal storage section of the apparatus body 1. Further, the personal data recognition determination unit 9, the permitted operation level reading unit 10, the permission / inhibition determination unit 1
1, the operation correspondence processing unit 12, the operation storage unit 13 and the like are configured by software means on the application program.

The operation level table 7 is constructed, for example, as shown in FIG. That is, the operation level table 7 stores an ID number, a personal identification number, and an operation level permitted by the operator, for each operator permitted to operate the process monitoring control device. Therefore,
The ID number and the personal identification number constitute a personal data memory.

Further, in the apparatus of this embodiment, a large number of operation types that can be executed by the operation panel 4 are classified into six operation levels (operation types). For example, operation level [1]
Indicates an operation for switching the monitor screen displaying the operating state of each controlled device to the operating state of another device. The operation level [2] indicates a manual operation performed on each controlled device 5 as necessary. Further, the operation level [6] indicates a setting operation such as a change in the operation parameter of the program, and a change operation.

As described above, the higher the operation level number, the more important the operation type in which an operation error is not allowed. Therefore, each operation level is assigned such that the higher the operation level, the higher the operation manager can become.

Furthermore, in the operation history memory 8, as shown in FIG. 3, the content of the operation actually executed is the ID of the operator.
The numbers and operation times (start time and end time) are recorded in time series.

Then, the apparatus main body 1 is programmed so as to execute a process corresponding to an operation performed by an operator according to the flow chart of FIG. When the flow chart starts,
First, when an ID card is inserted into the card reading device of the operator information input device 2 at P (program step) 1,
The personal data recognition determination unit 9 is activated to read the ID number. Then, when a 4-digit personal identification number is entered from the keypad, the personal data area of the operation level table 7 is searched and the personal identification number corresponding to the ID number read from the ID card is the personal identification number entered this time. Is checked (P2). If they do not match, the password mismatch is displayed on the display device 3.

When the coincidence of the personal identification number is confirmed, the permitted operation level reading section 10 is activated, and the operation levels of [1] to [6] assigned to the corresponding ID numbers in the operation level table 7 are displayed on the display device. To do. Then, the operation input from the operation panel 4 is awaited.

When an operation command is input from the operation panel 4 within a certain grace time ΔT such as 10 minutes (P3), the propriety determination unit 11 is activated, and the type of the input operation command becomes the read operation level. It is determined whether or not it is included (P4). If the operation type is not permitted, the operation prohibition display is displayed on the display device 3. Then return to P1 and ID
Start again from the card input operation. Similarly, if the operation is not performed within the grace time ΔT, the process returns to P1 and the ID card input operation is performed again.

If the operation command is of a permitted type, the operation correspondence processing section 12 is activated to execute the operation content of the operation command. Then, if necessary, the operation result is sent to the controlled device 5 as the operation amount. Next, the operation recording unit 13 is started, and the contents of the operation executed this time and the operator's I
D number, operation start time. The operation history such as the operation end time is written in the operation history memory 8 in time series (P5).

When a series of processes for one operation input is completed, the process returns to P3 and waits for the next operation input. The operation of outputting the operation history recorded in the operation history memory 8 is included in the self-diagnosis and maintenance operation types of the control device at the operation level [5] described above. Therefore,
If the operator who is permitted this operation level [5] executes an operation indicating a read command from the operation panel 4, the operation recording unit 1
The operation history is read via 3 and is printed out on the printer 6 or displayed on the display device 3.

In the case of the process monitoring and control device having such a configuration, the operator inserts an ID card given to himself into the card reading device and inputs his own personal identification number with the keypad to permit himself. The selected operation level is displayed on the display device 3. Therefore, it is only necessary to execute the necessary operation from the displayed operation levels using the operation panel 4.

As described above, by combining the ID card and the personal identification number, the personal identification number is unknown even if an external third party or an ID card is acquired to operate this process monitoring control device. It can not be operated. Further, even an internal operator cannot execute an operation other than the operation level given to him. further,
It is also impossible to use the ID card of another operator.

Therefore, it is possible to prevent a third person who intrudes from the outside from performing an arbitrary operation and an unskilled operator from performing an important operation. Therefore, it is possible to surely prevent the plant operation from being seriously hindered by a human error, so that the safety (security) of the entire apparatus is significantly increased.

A manager in charge of allocating maintenance operation levels can output the operation history stored in the operation history memory 8. Therefore, when an abnormality occurs in the plant due to some factor, the cause of the abnormality can be investigated in a short time by looking at the operation history, and it is possible to take an early countermeasure. Therefore, the reliability of the entire plant system can be improved.

[0028]

As described above, according to the process monitoring control apparatus of the present invention, each operator is obliged to input the ID information and the personal identification number, and the operation level for each operator is stored in the apparatus. There is. Therefore, even if a third person or an inexperienced operator inadvertently operates, the operation contents can be prevented from being executed, and the safety of the entire apparatus can be significantly improved.

Further, the contents of the executed operation and the operation history of the operator, the operation time, etc. are stored and held each time. Therefore, for example, when an abnormality occurs, you can check the operation history,
The subsequent measures can be implemented efficiently, and the reliability of the entire plant system can be improved.

[Brief description of drawings]

FIG. 1 is a block diagram showing a schematic configuration of a process monitoring control device according to an embodiment of the present invention.

FIG. 2 is a diagram showing an operation level table formed in the apparatus of the embodiment.

FIG. 3 is a diagram showing an operation history memory formed in the apparatus of the embodiment.

FIG. 4 is a flowchart showing the operation of the apparatus of the embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Device main body, 2 ... Operator information input device, 3 ... Display device, 4 ... Operation panel, 5 ... Control target device, 6 ... Printer, 7 ... Operation level table, 8 ... Operation history memory, 9
... personal data recognition determination unit, 10 ... permitted operation level reading unit, 11 ... possibility determination unit, 12 ... operation response processing unit, 13 ...
Operation recording section.

Claims (1)

[Claims] 1. A process monitoring control apparatus for monitoring and controlling an operating state of a controlled object, an operation level table storing an operation level permitted in advance for each operator, ID information and a secret code for each operator. A personal data memory for storing, personal information confirmation means for confirming that the input ID information and personal identification number are stored in the personal data memory, and the operation performed after confirmation of the personal information. A selection execution processing unit that accepts only the operation corresponding to the operation level permitted by the operator in the operation level table and executes the operation content, and the executed operation content and the operator are recorded in time series. Process monitoring and control device including an operation history memory and operation history output means for outputting the operation history stored in the operation history memory in response to a read command.