JPH09222901A - Plant data collector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a data collector with which the collection omission of plant data can be suppressed to a minimum. SOLUTION: This device is composed of respective unit computers from 1-1 to 1-n for supervising/controlling plants, plural unit server computers from 2-1 to 2-n connected with the respective unit computers in one-to-one correspondence, abnormality detecting means 5 for detecting any unit server computer which is not normally operated because of any hardware fault or any abnormality on a connection line between one of the unit computers from 1-1 to 1-n, and a common server computer 6 for substituting the processing of the unit server computer detected by the abnormality detecting means 5. In this case, while a certain unit server computer abnormally stops, the common server computer 6 substitutes the plant data collecting processing of this unit server computer and, after the abnormality of the unit server computer is recovered, the collected plant data are transmitted to the recovered unit server computer, thus the collection omission of plant data during abnormality generation can be canceled.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a plant monitoring and
The present invention relates to a plant data collection device that takes in plant data indicating the contents of plant operation from a plurality of controlled unit computers and collects it as history data of plant operation.

[0002]

2. Description of the Related Art A plant data collection device is designed to capture data (plant data) indicating the contents of plant operation from a plurality of unit computers that monitor and control the plant, and collect this as plant operation history data. The main purpose. The collected history data can be searched by designating a period, a condition, an input point, etc., and displayed in the form of a graph or the like. Further, it is also possible to perform performance calculation of the current plant using the collected plant data.

As shown in FIG. 7, a conventional plant data collecting apparatus is composed of a single computer 2, and this computer 2 is composed of a plurality of unit computers 1-1, 1-2, ...
-Detailed information (name, unit, etc.) of input points necessary for receiving and recording plant data from -n, long-term storage in the optical disk autochanger device 3 etc. (storing historical data), plant performance calculation, and plant operation status graph display All processing is done, such as editing the number of decimal places) and the performance calculation formula.

[0004]

As described above, the conventional plant data collecting apparatus collectively processes the plant data transmitted from the plurality of unit computers by using a single computer.

However, if such a centralized processing type configuration is adopted, it becomes impossible to collect the plant data from all the unit computers during a stoppage period such as a hardware failure of the plant data collecting apparatus or an inspection, and When a test such as data transmission is performed on the unit computer of No. 1, data collection from other unit computers unrelated to the test will also be stopped. Further, in a test in which the unit computer is frequently restarted, it is necessary to exclude data transmission with another unit computer in order to prevent the alarm from being generated by the test. Thus, in the conventional plant data collection device, there is a risk that many plant data to be collected will be lost.

Further, in the conventional plant data collecting apparatus, the history data cannot be stored at all due to the failure of the optical disk autochanger apparatus, and the plant data collecting apparatus can perform the plant performance calculation and the detailed information of the input point and the editing of the performance calculation formula. However, there is a problem in that it cannot be performed during a stoppage period such as when an abnormality occurs or during inspection.

The present invention is intended to solve such a problem, and an object of the present invention is to provide a plant data collecting apparatus capable of minimizing the omission of collecting plant data.

It is another object of the present invention to provide a plant data collecting device capable of minimizing omission of collecting plant operation history data to an external storage device.

Further, the present invention is to provide a plant data collecting apparatus capable of relieving a restriction on selection of a period for editing a database for managing detailed information of plant input points.

A further object of the present invention is to provide a plant data collecting apparatus which can largely eliminate restrictions on selection of a period for editing a performance calculation formula.

[0011]

In order to achieve the above object, the present invention is connected to a plurality of unit computers for monitoring and controlling a plant in a one-to-one correspondence. A plurality of unit server computers for receiving and collecting plant data indicating the plant operation content, an abnormality detecting means for detecting an abnormality of each unit server computer, and instead of the unit server computer in which the abnormality is detected by the abnormality detecting means, A common server computer that receives and collects plant data from a unit computer corresponding to the unit server computer in which the abnormality is detected, and transmits the collected plant data to the unit server computer that has recovered the abnormality after recovering the abnormality in the unit server computer. It is characterized by having.

In the present invention, the common server computer takes over the plant data collection processing of the unit server computer while the unit server computer is abnormally stopped, and the common server computer collects the plant data after the unit server computer recovers from the abnormality. Since the plant data is transmitted to the unit server computer, it is possible to eliminate the omission of the plant data collection during the abnormal period.

The present invention is also connected to a plurality of unit computers for monitoring and controlling the plant in a one-to-one relationship, and receives and collects plant data indicating the plant operation contents of the unit computers from the corresponding unit computers. A plurality of unit server computers, a plurality of external storage devices that are connected to the plurality of unit server computers on a one-to-one basis, and that accumulate plant data collected by the corresponding unit server computers as history data of plant operation, and Instead of the abnormality detecting means for detecting an abnormality in the external storage device and the external storage device in which the abnormality is detected by the abnormality detecting means, the history data is accumulated from the unit server computer corresponding to the external storage device in which the abnormality is detected. , After the abnormal recovery of the external storage device, the accumulated history data is transmitted to the external storage device which has been recovered abnormally. Characterized by comprising a common server computer.

According to the present invention, even if a certain external storage device fails, the history data of the plant operation, which should be originally stored in the external storage device, is stored in the common server computer during the abnormal stop period. Since the history data is transferred from the common server computer to the external storage device after the restoration, the history data of the plant operation can be continuously collected even when the external storage device fails.

Further, according to the present invention, a plurality of unit computers for monitoring and controlling the plant are connected to each other through a data transmission line in a one-to-one manner, and the plant data indicating the plant operation contents of the unit computers are received from the corresponding unit computers. Multiple unit server computers to collect and collect
Each data between each unit computer and each unit server computer is configured by including transmission excluding / restoring means for excluding / restoring data transmission between the arbitrarily selected unit computer and unit server computer. It is characterized in that transmissions can be individually excluded / returned.

In the present invention, while data transmission between each unit computer and each unit server computer is performed independently, only data transmission between the unit server computer and the unit computer in which an abnormality is detected is performed. Can be excluded without affecting other data transmissions. This makes it possible to minimize the loss of plant data when an abnormality occurs.

Further, the present invention is connected to a plurality of unit computers for monitoring and controlling the plant in a one-to-one correspondence, and receives and collects plant data indicating the plant operation contents of the unit computers from the corresponding unit computers. A plurality of unit server computers having a database for managing detailed information of each input point of the plant, and an edit command input means for giving an edit command to a database in an arbitrary unit server computer. It is characterized in that the unit server computer provided with the edit command inputting means can execute the database edit based on the edit command irrespective of the states of other unit server computers. .

In the present invention, each unit server computer independently manages a database of input point detailed information. Therefore, when a database in a unit server computer is edited, the unit server computer normally operates. As long as it operates, the database can be edited regardless of the state of the other unit server computer (even if the other unit server computer is abnormally stopped). Therefore, it is possible to perform a transmission test involving restart of the unit computer in another unit server computer while editing the database in a certain unit server computer. Further, the present invention is connected to a plurality of unit computers that monitor and control the plant in a one-to-one manner, and receives a plurality of plant data indicating the plant operation contents of the unit computers from the corresponding unit computers and collecting the plurality of plant data. A unit server computer, a plurality of unit server computers having means for performing plant performance calculation by using a predetermined formula for the collected plant data, and a formula for performance calculation in any unit server computer And an edit command input means for giving an edit command to the unit server computer that receives the edit command from the edit command input means, regardless of the states of other unit server computers, the unit server computer can calculate the performance based on the edit command. It is characterized in that the calculation formula can be edited.

In the present invention, since the performance calculation means for calculating the performance of each plant is independently provided in each unit server computer, when the performance calculation formula in a certain unit server computer is edited, As long as the unit server computer operates normally, the performance calculation will be performed regardless of the state of other unit server computers (for example, other unit server computers are abnormally stopped or performance calculation is in progress). You can edit the expression.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below.

FIG. 1 is a diagram showing the configuration of a plant data collecting apparatus according to the first embodiment.

As shown in the figure, this plant data collecting apparatus comprises a plurality of unit computers 1-1, 1-2, ..., 1-n that monitor and control the plant and are connected in a one-to-one correspondence. Unit server computers 2-1, 2-2, ..., 2-
n and individual unit server computers 2-1, 2-2,
..., 2-n, one-to-one connection, and optical disc autochanger devices 3-1, 3-2, which store plant data indicating plant operation contents collected by corresponding unit server computers as plant operation history data. , 3
-N and each unit server computer 2-1, 2-2, ...,
2-n does not operate normally due to a plurality of input / output devices 4-1, 4-2, ..., 4-n for inputting / outputting various information to / from 2-n, hardware failure, line abnormality between unit computer, and the like. Anomaly detection means 5 for detecting the unit server computer and each unit computer 1-1, 1-2, ..., 1-
and a common server computer 6 connected to n and acting as a substitute for the processing of the unit server computer in which the abnormality is detected by the abnormality detecting means 5. Each of the unit server computers 2-1, 2-2, ..., 2-n has a plant data receiving means 7 for receiving plant data from a corresponding unit computer and a received plant data as shown in FIG. A plant data recording means 9 for creating a plant recording database 8 for managing the data value, quality, time, etc. of the plant data on a daily or monthly basis, and an optical disk connected to the unit server computer. History data storage means 10 for storing plant data as history data in the autochanger device, performance calculation means 11 for performing plant performance calculation using the plant recording database 8, and performance calculation results obtained by the performance calculation means 11 as performance calculation results. Performance calculation result data recording means 13 recorded in the database 12 and plant operation Detailed information for each input point required graphical display of status (name, unit, decimal digits) is configured by a database 14 for storing.

The common server computer 6 receives the plant data from the unit computer connected to the unit server computer in which the abnormality is detected by the abnormality detecting means 5 on behalf of the unit server computer in which the abnormality is detected. After the recovery of the means 15, the plant data recording means 17 for recording the received plant data in the common information file 16 and the unit server computer in which the abnormality is detected, the abnormality information is notified from the operator and recorded in the common information file 16. And a plant data transmission means 18 for transmitting the generated plant data to the unit server computer that has recovered abnormally.

Next, the operation represented by this plant data collection device will be described. Anomaly detection means 5
Detects whether each unit server computer is operating normally by checking the internal state of each unit server computer through the LAN line 19, and if an abnormality is detected, the input / output device corresponding to the unit server computer. And the common server computer 6 is notified of the abnormality.

When the input / output devices 4-1, 4-2, ..., 4-n receive an abnormality notification from the abnormality detecting means 5, the contents of the abnormality are displayed to the operator. Here, it is assumed that the first unit server computer 2-1 has stopped due to an abnormality.

On the other hand, when the common server computer 6 receives the abnormality notification from the abnormality detecting means 5, the unit server computer 2-1 replaces the unit server computer 2-1 in which the abnormality has occurred.
Start receiving the plant data from 1. The received plant data is recorded in the internal common information file 16.

After that, the common server computer 6 receives the input / output device 4-1 when the unit server computer 2-1 is restored.
The plant data of the abnormal stop period recorded in the common information file 16 is transmitted to the unit server computer 2-1 in accordance with a command given by the operator through. The unit server computer 2-1 records the plant data of the abnormal stop period in its own plant recording database 8.

Thus, according to the plant data collecting apparatus of the present embodiment, the unit server computers are connected to the individual unit computers in a one-to-one manner, and the common server computer 6 keeps the unit server computer in the abnormal stop period for a certain unit server computer. Since the plant data recording process of the server computer is configured instead, it is possible to eliminate the omission of the plant data collection during the abnormal period.

Further, in the case of the conventional centralized processing type plant data collecting apparatus, if the capacity of the plant recording database (magnetic disk etc.) becomes insufficient due to the increase of the total plant data amount due to the addition of the unit computer, the existing system itself However, in the present embodiment, simply adding a new unit server computer that satisfies the hardware condition such as the capacity of the magnetic disk in the initial state to the existing system makes the unit simple. It is possible to support the addition of computers.

Further, according to the present embodiment, the processing of collecting the plant data from each unit computer is distributed and performed by each unit server computer, so that the load on each unit server computer is significantly reduced as compared with the conventional one. The processing speed can be increased.

In the present embodiment, the abnormality detecting means 5 for detecting a unit server computer that has stopped operating normally is only for recording the plant data in each unit server computer (creating the plant recording database 8). May be checked, and if the recording process is not normally performed, it may be determined to be abnormal.

Next, the plant data collecting apparatus of the second embodiment will be described.

FIG. 3 is a block diagram showing the configuration of this plant data collection device.

As shown in the figure, this plant data collecting apparatus is composed of unit computers 1-1, 1-2, ..., 1-
a plurality of unit server computers 2 connected to n in a one-to-one relationship
-1, 2-2, ..., 2-n and the individual unit server computers 2-1, 2-2, ..., 2-n are connected in a one-to-one relationship,
Optical disk autochanger device 3-1, 3-2, ..., 3-which accumulates plant data collected by corresponding unit server computers as history data of plant operation
n and each unit server computer 2-1, 2-2, ..., 2
-N for inputting / outputting various information to / from various optical disc auto changer devices 3-1, 3-2, ..., 3-n. The optical disk abnormality detecting means 21 for detecting and the common server computer 6 substituting for the optical disk autochanger apparatus in which the abnormality is detected by the optical disk abnormality detecting means 21 are configured. In addition, each unit server computer 2-1
Since the internal configuration of 2-2, ..., 2-n is as shown in FIG. 2, description thereof is omitted here.

As shown in FIG. 3, the common server computer 6 sends a signal from the unit server computer that should be transmitted to the optical disc autochanger device when the optical disc abnormality detecting means 21 detects an abnormality in the optical disc autochanger device. History data receiving means 22 for receiving the plant operation history data through the LAN line 19, history data saving means 24 for saving the received plant operation history data in a common information file 23 such as an optical disc, and an optical disc autochanger in which an abnormality has been detected. After the recovery of the device, upon receiving an abnormal recovery notification from the operator, a history data transmission means 25 for transmitting the plant operation history data stored in the common information file 23 to the recovered optical disc autochanger device.

Next, the operation of this plant data collection device will be described.

The optical disk abnormality detecting means 21 includes unit server computers 2-1, 2-2, ..., 2-n and optical disk autochanger devices 3-1, 3-2 ,.
, 3-n by monitoring the LAN line 10 between the optical disk autochanger device 3-1, 3-2, ..., 3-n, and when an error is detected, the input / output device corresponding to the optical disk autochanger device. Then, the common server computer 6 is notified to that effect. Input / output devices 4-1, 4-2
.., 4-n, when the abnormality notification is received from the optical disc abnormality detecting means 21, displays the content of the abnormality to the operator.
Here, it is assumed that the optical disk autochanger device 3-1 connected to the No. 1 unit server computer 2-1 has stopped due to an abnormality.

On the other hand, when the common server computer 6 receives the abnormality notification from the optical disc abnormality detecting means 21, the plant operation transferred from the unit server computer 2-1 in place of the optical disc autochanger device 3-1 in which the abnormality is detected. The history data is received, and the received plant data is stored in the internal common information file 23. After that, the common server computer 6 operates the optical disc autochanger device 3
-1 reads the plant operation history data from the common information file 23 in accordance with the instruction given by the operator when -1 has recovered from the abnormality and transmits it to the optical disk autochanger device 3-1 that has recovered from the abnormality. The optical disc autochanger device 3-1 stores the history data transmitted from the common server computer 6 in its own optical disc.

Thus, according to the plant data collecting apparatus of the present embodiment, even if the optical disk autochanger apparatus fails, the plant operation history data is stored in the common information file 23 in the common server computer 6 during the abnormal stop period. Since the history data is transferred from the common server computer 6 to the optical disc autochanger device after the recovery of the optical disc autochanger device, the plant operation history data can be continuously collected even when the optical disc autochanger device fails.

Further, in the plant data collecting apparatus of the present embodiment, the plant data is distributed and stored in different optical disk autochanger apparatuses for each individual unit computer, so that the conventional central processing type plant data collecting apparatus is used. Compared with, it is possible to shorten the average data search time of the optical disc autochanger device.

Next, a plant data collecting apparatus of the third embodiment will be described.

FIG. 4 is a block diagram showing the configuration of this plant data collection device.

As shown in the figure, this plant data collecting apparatus comprises a plurality of unit computers 1-1, 1-2, ..., 1-n that monitor and control the plant and are connected in a one-to-one correspondence. Unit server computers 2-1, 2-2, ..., 2-
n, a common server computer 6 having a transmission abnormality detecting means 30 for detecting transmission abnormality of plant data between each unit computer and each unit server computer, and plant data between each unit computer and each unit server computer And a maintenance input / output device 32 having a transmission exclusion / recovery means 31 for selectively excluding / resuming the transmission of the above in response to a command from an operator. Since the internal configuration of each unit server computer 2-1, 2-2, ..., 2-n is as shown in FIG. 2, the description thereof is omitted here.

Next, the operation of this plant data collection device will be described.

In this plant data collecting apparatus, data transmission between each unit computer 1-1, 1-2, ..., 1-n and each unit server computer 2-1, 2-2 ,. Are carried out independently. Transmission abnormality detection means 3
0 checks the status of each of these independent individual data transmissions, and if an abnormality is detected, it notifies the maintenance input / output device 32 (which unit server computer has caused the transmission abnormality). Maintenance input / output device 32
When receiving the abnormality notification from the transmission abnormality detecting means 30, displays the abnormality to the operator. When the operator gives an instruction to exclude the data transmission between the unit computer and the unit server computer, the transmission exclusion / recovery means 31 issues an instruction to exclude the data transmission to the corresponding unit server computer. The unit server computer that has received the data transmission exclusion command immediately excludes (stops) data transmission with the unit computer.

Thereafter, the transmission exclusion / restoration means 31 receives a data transmission restoration instruction given by the operator when the unit computer and the unit server computer in which the data transmission abnormality is detected recovers from the abnormality, and then a data transmission restoration command is issued. Is issued to the unit server computer that has recovered abnormally.
As a result, data transmission between the unit server computer and the unit computer that have recovered from the abnormality is restarted.

As described above, in the plant data collection system of this embodiment, each unit computer 1-1, 1-
2, ..., 1-n and each unit server computer 2-1,2-
Data transmission between 2, ..., 2-n is performed independently of each other, and only data transmission between the unit server computer and the unit computer in which an abnormality is detected affects other data transmission. Can be excluded without. This makes it possible to minimize the loss of plant data when an abnormality occurs.

Next, a plant data collecting apparatus of the fourth embodiment will be described.

FIG. 5 is a block diagram showing the configuration of this plant data collection device.

As shown in the figure, this plant data collecting apparatus is composed of unit computers 1-1, 1-2, ..., 1-
a plurality of unit server computers 2 connected to n in a one-to-one relationship
Detailed information of each input point required for displaying a graph of the plant operating status in each of the unit server computers 2-1, 2-2, ..., 2-n A maintenance input / output device 32 having a database maintenance means 41 for performing addition, change, deletion, etc. of the database 14 storing (name, unit, number of decimal places) according to an operator's instruction, and each unit server computer 2-1. , 2-2, ..., 2-n, the database control information file 42 having the exclusive control of the database 14 built therein.
And a common server computer 6 which is performed by using the. In addition, each unit server computer 2-1, 2-2,
Since the internal configuration of 2-n is as shown in FIG.
The description is omitted here.

Next, the operation of the plant data collection device of this embodiment during database maintenance will be described.

The operator operates the maintenance input / output device 32.
Above, the unit server computer from which the database 14 is to be edited is selected, and the addition, change, or deletion of the database 14 in the unit server computer is requested. The database maintenance means 41 judges the request, issues a database editing execution command to the corresponding unit server computer, and notifies the common server computer 6 of which unit server computer database 14 is to be edited. Upon receiving this notification, the common server computer 6 performs exclusive control so as to prohibit the use of the database 14 by other users when editing the database. While this database exclusive control is being performed, the unit server computer edits the database 14 in accordance with an instruction from the database maintenance means 41.

As described above, in the plant data collection system of this embodiment, each unit server computer 2-1 and 2-2
Database of detailed information of input points in -2, ..., 2-n 1
4 are independently managed, therefore, when editing the database 14 in a unit server computer, as long as the unit server computer operates normally, no matter what state other unit server computers are in ( Database editing can be performed (even if another unit server computer stops abnormally). Therefore, it is possible to perform a transmission test involving restart of the unit computer in another unit server computer while editing the database in a certain unit server computer. In addition, on-site adjustment work such as simultaneous connection testing of multiple units will be possible, which will reduce the on-site work time.

Further, in the plant data collecting apparatus of the present embodiment, each unit server computer is managed independently by managing the database 14 of detailed input point information in each unit server computer. Since different databases such as a relational database and an object-oriented database can be adopted, it is possible to construct an optimal database environment according to the scale of the plant and the needs of the customer.

Further, in the plant data collection system of the present embodiment, since the plurality of unit server computers manage the database 14 of detailed input point information in a distributed manner, it is possible to speed up the database search.

Next, a plant data collecting apparatus of the fifth embodiment will be described.

FIG. 6 is a block diagram showing the configuration of this plant data collection device.

As shown in the figure, this plant data collecting apparatus is composed of unit computers 1-1, 1-2, ..., 1-
a plurality of unit server computers 2 connected to n in a one-to-one relationship
-1, 2-2, ..., 2-n and addition, modification, deletion, etc. of the performance calculation formula used by the performance calculation means 11 in each unit server computer 2-1, 2-2 ,. And a maintenance input / output device 32 having a performance calculation maintenance means 51 for editing the above according to an instruction from an operator. Each unit server computer 2-1 and 2
Since the internal configuration of −2, ..., 2-n is as shown in FIG. 2, the description thereof is omitted here.

Next, the operation at the time of maintenance of the performance calculation formula in the plant data collection system of this embodiment will be described.

The operator operates the maintenance input / output device 32.
Above, select the unit server computer from which the performance calculation formula is to be edited, and add to the performance calculation formula used by the performance calculation means 11 in the unit server computer,
Request modification, deletion, etc. Performance calculation maintenance means 5
1 determines the request, and issues a performance calculation formula edit execution command to the corresponding unit server computer.

The unit server computer edits the performance calculation formula according to this instruction. After this, the performance calculation means 1
1 determines whether or not the edited performance calculation formula satisfies a certain condition for practical use. If satisfied, the data required for the performance calculation is extracted from the plant recording database 8 and this data is Perform the performance calculation using the edited performance calculation formula for the target. The performance calculation result obtained by the performance calculation means 11 is recorded in the performance calculation result database 12 by the performance calculation result data recording means 13. As described above, in the plant data collection apparatus of the present embodiment, the performance calculation means 11 for individually calculating the performance of the plant is independently provided in each of the unit server computers 2-1, 2-2, ..., 2-n. Therefore, when editing the performance calculation formula in a unit server computer, as long as the unit server computer operates normally, no matter what state other unit server computers are in (for example, other unit server computers) The performance calculation formula can be edited even if is abnormally stopped or the performance calculation is being performed.

Further, in the plant data collection system of this embodiment, since the performance calculation is performed in a distributed manner among the unit server computers, it is possible to reduce the load on the computer during the performance calculation process and to use less resources than before. Thus, it becomes possible to perform many performance calculation processes at the same time.

[0063]

As described above, according to the present invention, during a period when a certain unit server computer is abnormally stopped, the common server computer takes over the plant data collection processing of the unit server computer, and the unit server computer is abnormal. Since the plant data collected by the common server computer is transmitted to the unit server computer after the restoration, it is possible to eliminate the omission of the plant data collection during the abnormal period.

Further, according to the present invention, even if a certain external storage device fails, the history data of the plant operation which should be originally stored in the external storage device is saved in the common server computer during the abnormal stop period, and Since the history data is transferred from the common server computer to the external storage device after the storage device is restored, it is possible to continuously collect the plant operation history data even when the external storage device fails.

Further, according to the present invention, while data transmission between each unit computer and each unit server computer is independently performed, between the unit server computer and the unit computer where the abnormality is detected, Only data transmissions can be excluded without affecting other data transmissions. This makes it possible to minimize the loss of plant data when an abnormality occurs.

Further, according to the present invention, since each unit server computer independently manages a database of detailed input point information, when a database in a unit server computer is edited, the unit server computer is edited. As long as it operates normally, the database can be edited regardless of the state of the other unit server computer (even if the other unit server computer is abnormally stopped). Therefore, it is possible to perform a transmission test involving restart of the unit computer in another unit server computer while editing the database in a certain unit server computer. Further, according to the present invention, since the performance calculation means for calculating the performance of each plant is independently provided in each unit server computer, when editing the performance calculation formula in a certain unit server computer, As long as the unit server computer operates normally, no matter what state other unit server computers are in (for example, another unit server computer has stopped abnormally,
The performance calculation formula can be edited even when the performance calculation is being performed.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of a plant data collection device according to a first embodiment of the present invention.

FIG. 2 is a diagram showing a configuration of a unit server computer of a plant data collection device according to the present invention.

FIG. 3 is a diagram showing a configuration of a plant data collection device according to a second embodiment of the present invention.

FIG. 4 is a diagram showing a configuration of a plant data collection device according to a third embodiment of the present invention.

FIG. 5 is a diagram showing a configuration of a plant data collection device according to a fourth embodiment of the present invention.

FIG. 6 is a diagram showing a configuration of a plant data collection device according to a fifth embodiment of the present invention.

FIG. 7 is a diagram showing a configuration of a conventional plant data collection device.

[Explanation of symbols]

1-1, 1-2, 1-n ... Unit computer 2-1, 2-2, 2-n ... Unit server computer 3-1, 3-2, 3-n ... Optical disc autochanger device 4-1 , 4-2, 4-n ... I / O device 5 ... Abnormality detection means 6 ... Common server computer 7 ... Plant data receiving means 8 ... Plant recording database 9 ... Plant data recording means 10 ... History data Storage unit 11 ... Performance calculation unit 12 ... Performance calculation result database 13 ... Performance calculation result data recording unit 14 ... Input point detailed information database 15 ... Plant data receiving unit 16 ... Common information file 17 ... Plant data Recording means 18 ...... Plant data transmission means 21 ...... Optical disk abnormality detection means 22 ...... History data reception means 23 ...... Common information file 24 ...... Gravel data storage means 25 ...... history data transmission means 30 ...... transmission error detection means 31 ...... transmission exclusion / returning unit 32 ...... maintenance input-output device 41 ...... database maintenance means 51 ...... performance calculation maintenance units

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yukio Miura 1st floor, Toshiba-cho, Fuchu-shi, Tokyo Toshiba Corporation Fuchu factory

Claims (5)

[Claims] 1. A plurality of units that are connected to a plurality of unit computers that monitor and control the plant in a one-to-one manner, and that receive and collect plant data indicating plant operation contents of the unit computers from the corresponding unit computers. A server computer, an abnormality detecting unit that detects an abnormality of each unit server computer, and the unit computer corresponding to the unit server computer in which the abnormality is detected instead of the unit server computer in which the abnormality is detected by the abnormality detecting unit And a common server computer which receives and collects the plant data, recovers the abnormalities of the unit server computer, and then transmits the collected plant data to the abnormally recovered unit server computer. 2. A plurality of units connected in a one-to-one correspondence with a plurality of unit computers for monitoring and controlling the plant, and for receiving and collecting plant data indicating plant operation contents of the unit computers from corresponding unit computers. A server computer and one-to-one connection with the plurality of unit server computers,
A plurality of external storage devices that accumulate plant data collected by corresponding unit server computers as history data of plant operation, an abnormality detection unit that detects an abnormality of each external storage device, and an abnormality by the abnormality detection unit Instead of the detected external storage device, the history data is accumulated from the unit server computer corresponding to the external storage device where the abnormality is detected, and after the abnormality recovery of the external storage device, the accumulated history data is restored to the abnormality. And a common server computer for transmitting to the external storage device. 3. A plurality of unit computers for monitoring and controlling the plant and one-to-one connection through a data transmission line, for receiving and collecting plant data indicating plant operation contents of the corresponding unit computers. A plurality of unit server computers, and transmission excluding / resuming means for excluding / restoring data transmission between the arbitrarily selected unit computer and the unit server computer, each unit computer and each unit A plant data collection device characterized in that each data transmission to and from a server computer can be individually excluded / restored. 4. A plurality of units connected in a one-to-one correspondence with a plurality of unit computers for monitoring and controlling the plant, and for receiving and collecting plant data indicating plant operation contents of the unit computers from corresponding unit computers. A server computer, comprising a plurality of unit server computers having a database for managing detailed information of each input point of the plant, and edit command input means for giving an edit command to the database in any of the unit server computers. However, the unit server computer that has received the edit command from the edit command input means can execute editing of the database based on the edit command regardless of the states of other unit server computers. Plant data collection device. 5. A plurality of units connected in a one-to-one correspondence with a plurality of unit computers for monitoring and controlling the plant, for receiving and collecting plant data indicating plant operation contents of the unit computers from corresponding unit computers. A server computer, a plurality of unit server computers having means for performing performance calculation of the plant by using a predetermined calculation formula for the collected plant data, and for the performance calculation in any of the unit server computers And an edit command input means for giving an edit command to the formula, the unit server computer receiving the edit command from the edit command input means is responsive to the edit command regardless of the states of other unit server computers. A plant data collecting apparatus, characterized in that a calculation formula for the performance calculation can be edited based on the above.