JP4393241B2 - Plant data backup system, plant data backup method, backup control program, and storage medium storing the same - Google Patents

Description

  The present invention relates to a plant data backup technique suitable for using plant data depending on the operation history of a plant sent from a plant computer such as a thermal power plant for a long period of time.

  In the case of a plant such as a thermal power plant, it is necessary to grasp the plant state in order to manage the operation of the plant, and plant data that depends on the operation history of the plant collected and calculated by the plant computer, for example, every 1 minute In the plant data management server. For this reason, since a huge amount of plant data is stored in the storage unit of the plant data management server, there is an inconvenience that the limit is reached early even when the capacity of the storage unit is sufficiently set.

For this reason, conventionally, the plant data stored in the storage unit of the plant data management server is backed up on a magnetic tape, or a backup server is connected and backup is performed using Patent Document 1 or the like. It is considered to transfer the plant data in the plant data management server to a backup server.

Japanese Patent No. 2938860

  However, when all the plant data is backed up to a magnetic tape, there are inconveniences such as taking a lot of time and inconvenience in examining past plant data. Even when a backup server is used, plant data is simply transferred from the plant data management server, so that there is a disadvantage that a sufficient storage period cannot be secured.

  Therefore, the present invention has been made in view of the circumstances as described above, and is easy to use, and a plant data backup system and backup method capable of using plant data for a long period of time, a backup control program, and this The main problem is to provide a storage medium that stores information.

In order to achieve the above object, a plant data backup system according to the present invention includes a plant data management server that periodically captures and stores in a storage unit plant data that depends on an operation history of a plant sent from a plant computer, connected to said plant data management server, which is configured with a backup server for backing up the plant data stored in the storage unit, the plant data management server, the plant periodically arriving A determination unit that determines whether or not it is a backup time of data, and when the determination unit determines that it is the backup time, the storage period of the plant data stored in the storage unit has a predetermined period. extracts elapsed plant data sent to the backup server And a that data transmission means,
The backup server includes a main storage unit for storing data, and an auxiliary storage unit having a removable storage medium, and stores the plant data sent by the data sending unit as it is in the auxiliary storage unit. And intermittent data backup means for thinning out the plant data sent by the data sending means and storing it in the main storage means, the plant data management server after the plant data is sent by the data sending means The system further comprises means for making the storage area of the plant data sent to the backup server available for new plant data fetched from the plant computer (claim 1).

  Here, the plant data refers to analog history data depending on the operation history of the plant, computer data calculated based on the analog history data, and the like. Further, the backup time may be a regular time or an irregular time, and the regular backup time is, for example, a predetermined time on a predetermined day of every month. Furthermore, the plant data of the past predetermined period set according to the type of plant data is, for example, a computer in which plant data is calculated based on analog history data depending on the operation history of the plant and the analog history data. If it is composed of data, if it is analog history data, plant data for one month that is going to pass 2 years, if it is computer data, plant data for 1 month that is going to pass 5 years, etc. Say. Moreover, as an auxiliary storage device having a removable storage medium, for example, a DVD or the like is applicable.

  Further, when the plant data is composed of analog history data depending on the operation history of the plant and computer data calculated based on the analog history data, the full data backup means and the intermittent data backup means are provided as analog data. The backup server may be configured to further include means for storing the computer data sent by the data sending means as it is in the main storage means.

In order to achieve the above object, a plant data backup method according to the present invention is a plant data management server that periodically takes in plant data sent from a plant computer and depends on the operation history of the plant and stores it in a storage unit. And a backup server that backs up the plant data stored in the storage unit, and a main storage unit that stores data in the backup server and an auxiliary storage unit that includes a removable storage medium. A method of using the network system, wherein the plant data management server determines whether it is the backup time of the plant data that comes regularly, and is determined to be the backup time of the plant data Before being stored in the storage unit Among plant data, a step of sending to the backup server extracts plant data retention period has elapsed a predetermined time period, a new capture storage areas of the data sent to the backup server after the transmission of plant data from the plant computer and a step of available for such plant data at the backup server, it together is stored in the auxiliary storage means the plant data sent from the plant data management server, delivered by the data transmission means A backup step of thinning out the plant data and storing it in the main storage means (claim 3).

  Here, when the plant data is composed of analog history data depending on the operation history of the plant and computer data calculated based on the analog history data, the backup step is performed on the analog data. The computer data may be added to the backup server at any time before or after the backup process by the backup server. .

Furthermore, in order to achieve the above object, a computer-readable backup control program according to the present invention is a plant that periodically takes in plant data sent from a plant computer and saves it in a storage unit. A main storage means for storing data in the backup server, and a removable storage medium, comprising: a data management server; a backup server connected to the plant data management server and backing up the plant data stored in the storage unit; For backing up plant data using a system configured by providing auxiliary storage means, and whether or not it is time to back up the plant data that regularly arrives at the plant data management server The function to be judged and the plan If it is determined that the backup time of the data, among the plant data stored in the storage unit, and a function of sending extracts plant data retention period has elapsed the predetermined time to the backup server, A function for making the storage area of data sent to the backup server after sending the plant data available for new plant data fetched from the plant computer is sent to the backup server from the plant data management server The plant data is stored in the auxiliary storage unit as it is, and a backup function is realized in which the plant data transmitted by the data transmission unit is thinned out and stored in the main storage unit. (Claim 5).

  Here, when the plant data is composed of analog history data that depends on the operation history of the plant and computer data that is calculated based on the analog history data, the backup control program is provided for the analog history data. The backup function may be realized, and the computer data may further be realized with the backup server storing the data sent from the plant data management server in the main storage device as it is (Claim 6).

  The above-described program may be provided by being stored in a computer-readable storage medium (Claim 7), or may be distributed via wired or wireless communication means.

As described above, according to the present invention, in the plant data management server, in the plant data management server, the plant data whose storage period has passed the predetermined period at the backup time that comes regularly. sent to the backup server to extract, and available for new plant data capture storage areas of the data sent to the backup server from the plant computer, and in the backup server, sent from the plant data management server Since at least a part of the plant data is stored in the auxiliary storage means as it is, and thinned out and stored in the main storage means, the thinned plant saved in the backup server during the period that cannot be saved in the plant data management server By using the data, the approximate plant It is possible to quickly grasp the turn history, and it is possible to refer to the plant data stored in the removable storage medium only when detailed data is required, making it easy to use long-term plant data. It can be used well.

  In addition, plant data is divided into analog data that depends on the operation history of the plant and computer data that is calculated based on this analog data. Analog data is thinned out and stored in the main storage device and not thinned out. If the computer data is stored in the main storage device as it is output from the plant data management server to the backup server, the storage format differs depending on the type of data. Therefore, it becomes possible to use each data for a long time.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS The best embodiment of the present invention will be described below with reference to the accompanying drawings.

  In FIG. 1, the structural example which applied the plant data backup system and method which concern on this invention to the plant data management system which manages the plant data of the thermal power plant (BTG plant) comprised from a boiler, a turbine, and a generator is shown.

  The plant data management system includes a plant data management server 2, a control room terminal 3, a backup server 4, etc. connected via a network 1, unit computers 7 a and 7 b connected to a power plant unit network 6, Outdoor equipment computers 9 a and 9 b connected to the unit network 6 via a gateway processor (GWP) 8 are connected to the network 1 via a gateway server 5.

  Here, each of the servers 2 and 4 and the control room terminal 3 described above is an information processing device having a CPU, a ROM, a RAM, an external storage device, etc., and various software for these servers and terminals are stored in a storage medium. It is read and held in the memory and executed by the CPU. In addition, plant computers such as the unit computers 7a and 7b and the outdoor equipment computers 9a and 9b collect and calculate operation result data relating to the power generation facilities of the power plant, that is, plant data depending on the operation history of the plant. The plant data is sent to the plant data management server 2 via the gateway server 5. Here, the plant data sent from the plant computers (unit computers 7a and 7b, outdoor equipment computers 9a and 9b) is converted into analog history data depending on the operation history of the plant collected by each plant computer, and this analog data. It includes computer data such as average value, maximum value, and minimum value calculated based on this.

  The gateway server 5 receives and sorts plant data (analog history data, computer data) sent from each plant computer (unit computers 7a and 7b, outdoor equipment computers 9a and 9b), temporarily stores them, and stores them in analog form. The history data and the computer data are sent to the plant data management server 2 at a cycle of 1 minute, for example.

  The plant data management server 2 collects plant data and stores it for a certain period. As shown in FIG. 2, the plant data management server 2 is connected to the backup server 4, the control room terminal 3, the gateway server 5, and the like. An input / output unit 2a for controlling communication, a data storage unit 2b for storing plant data fetched from the gateway server 5 via the input / output unit 2a, and input of plant data according to a predetermined control program given to the memory And a control unit 2c that performs output control and management.

  Here, the control unit 2c and backup time determination means 2c1 for determining whether or not it is a backup time, and backup data transmission for extracting plant data to be backed up at the backup time from the plant data stored in the data storage unit 2b. Means 2c2 for fetching plant data sent from the gateway server 5 and storing it in the data storage unit 2b, and extracting and inputting plant data for backup from the plant data stored in the data storage unit 2b. The data is sent to the backup server 4 via the output unit 2a. The data storage unit 2b has a capacity capable of storing analog history data for about two years and computer data for about five years.

  The backup server 4 stores plant data sent from the plant data management server 2 for a long period of time, and includes an input / output unit 4a that controls communication with the plant data management server 2, the control room terminal 3, and the like, The data to be backed up output from the data management server is taken in via the input / output unit 4a, and temporarily stored in the data storage unit 4b, and the input / output control and management of plant data according to a predetermined control program given to the memory And a control unit 4c for performing the above.

  Here, the control unit 4c thins out the backup target data temporarily stored in the data storage unit 4b in a predetermined cycle (for example, a cycle of 20 minutes) and stores it in another area of the data storage unit 4b. Means 4c1, full data backup processing means 4c2 for moving backup target data temporarily stored in the data storage unit to auxiliary storage device 10 having a removable storage medium such as a DVD without thinning out, and auxiliary storage device 10 And a restoration means 4c3 for restoring plant data stored in a removable storage medium to the data storage unit via the data storage unit 4d. The backup data extracted by the plant data management server 2 at the backup time is stored in the data storage unit 4d. The data is stored in the auxiliary storage device 10.

  The data storage unit 4d has a capacity capable of storing thinned analog history data for about 30 years and computer data for about 30 years. The auxiliary storage device 10 having a removable storage medium such as a DVD has a capacity capable of storing analog history data for about two months without thinning out. Further, the plant data stored in the data storage unit of the plant data management server 2, the plant data stored in the data storage unit of the backup server 4, and the removable storage medium set in the auxiliary storage device 10 are recorded. The plant data can be viewed on a dedicated terminal such as the control room terminal 3.

  The above-described data processing process is performed, for example, by supplying a backup control program that can be read by a plant data management server or a backup server via a storage medium such as a CD-R or via a network. The data processing is performed by executing the installed control program, and the data processing example performed by the plant data management server 2 and the backup server 4 will be described below with reference to the flowchart shown in FIG. While explaining.

  First, in the plant data management server 2, it is determined whether or not analog history data and computer data having a 1-minute cycle have been input from the plant computer side (S01P). The data is stored in the data storage unit in association with the collection date (S02P).

  Thereafter, it is determined whether or not it is the backup time (S03P), and if it is determined that it is not the backup time, the above-described processing routine is repeatedly performed at a predetermined interval without performing the backup processing described below. The backup time is set, for example, at 12:00 pm on the first Saturday of every month. Therefore, the analog data and computer data are stored in the data storage unit 2b of the plant data management server 2 for one minute until this time comes. It will be accumulated in a cycle.

If it is determined in S03 that the backup time is reached, a part of the plant data stored in the data storage unit 2b is backed up to the backup server 4.
Specifically, among the analog history data stored in the data storage unit 2b, the analog history data for one month two years ago (the data for one month before one year and eleven months) is transmitted to the backup server 4. (S04P), the table storing the analog history data to be backed up (backup target analog history data) is reconfigured for reading new analog history data (S05P), and the computer data stored in the data storage unit 2b Among them, analog history data for one month five years ago (data for one month before four years and eleven months) is transmitted to the backup server 4 (S06P), and computer data for one month that is the target of this backup. (Backup target computer data) is deleted from the data storage unit 2b (S07P).

  In response to such processing at the plant data management server 2, the backup server 4 determines whether or not analog history data for one month two years ago has been input (S01B), and it has been determined that it has been input. In this case, the analog history data for one month two years ago is backed up in the data storage unit 4b (S02B).

  Then, the backed up analog history data for one month is temporarily restored (S03B), and the backed up analog history data for one month is thinned out at a cycle of 20 minutes and stored in another table of the data storage unit 4b. (S04B). Further, the temporarily restored analog history data is moved to the DVD as the auxiliary storage device 10 without being thinned (S05B).

  Thereafter, the backup server 4 determines whether or not computer data for one month five years ago has been input (S06B). If it is determined that it has been input, an analog history for one month five years ago is determined. Data is backed up in the data storage unit 4b (S07B).

  Thus, when the total data capacity of the plant data stored in the plant data management server approaches the limit of the memory capacity of the plant data management server, the oldest one month of plant data is transferred to the backup server 4 and the analog data Since the history data is stored in the data storage unit 4b in a thinned state and stored on the DVD without being thinned out, the data for the last two years accesses the data storage unit 2b of the plant data management server 2. Even after two years have passed, it is possible to obtain the thinned plant data by accessing the data management unit of the backup server. If the thinned plant data is insufficient, a DVD medium containing full data for the corresponding period is set in the auxiliary storage device 10 and the plant data at a desired time is acquired from the control room terminal 3 or the like. It becomes possible.

  Therefore, although the plant data of a sufficiently retroactive period cannot be used depending on the plant data management server 2, the plant data can be used for another 30 years. In addition, plant data from two years ago can be quickly grasped by thinning out plant data, and only when detailed data is required, it can be stored in a removable storage medium. Therefore, it is possible to construct a user-friendly backup system.

  In the above-described configuration, the thinning cycle is, for example, a 20-minute cycle, but may be a cycle longer than the cycle (1 minute) of the plant data sent from the gateway server. In the above configuration, an example in which a DVD is used as an auxiliary storage device having a removable storage medium has been described. However, another device having a removable storage medium may be used instead.

FIG. 1 is a block diagram showing an example of a thermal power plant using a plant data backup system according to the present invention. It is a block diagram which shows the structural example of a plant data management server and a backup server. FIG. 3 is a flowchart for explaining an example of processing of plant data by the plant data management server and the backup server.

Explanation of symbols

2 Plant data management server 4 Backup server 7a, 7b Unit computer 9a, 9b Computer for outdoor equipment 10 Auxiliary storage device

Claims (7)

A plant data management server that periodically captures and stores in the storage unit plant data that depends on the operation history of the plant sent from the plant computer, and the plant that is connected to the plant data management server and stored in the storage unit In a plant data backup system comprising a backup server for backing up data,
The plant data management server is stored in the storage unit when it is determined by the determination means that it is the backup time of the plant data that comes regularly, and when the determination means determines that it is the backup time. Among the plant data , having a data sending means for extracting the plant data whose retention period has passed a predetermined period and sending it to the backup server,
The backup server includes a main storage unit for storing data, and an auxiliary storage unit having a removable storage medium, and stores the plant data sent by the data sending unit as it is in the auxiliary storage unit. And intermittent data backup means for thinning out the plant data sent by the data sending means and storing it in the main storage means,
The plant data management server further comprises means for making available for storing new plant data for taking in the storage area of the plant data sent to the backup server after sending the plant data by the data sending means from the plant computer. Plant data backup system characterized by The plant data consists of analog history data depending on the operation history of the plant and computer data calculated based on the analog history data,
The full data backup means and the intermittent data backup means are executed for the analog history data,
2. The plant data backup system according to claim 1, wherein the backup server further comprises means for storing the computer data sent by the data sending means as it is in the main storage means. Connects a plant data management server that periodically captures and saves plant data that depends on the operation history of the plant sent from the plant computer in the storage unit, and a backup server that backs up the plant data stored in the storage unit And a plant data backup method using a network system configured to include main storage means for storing data in the backup server and auxiliary storage means having a removable storage medium,
In the plant data management server, when it is determined that it is the backup time of the plant data that comes regularly, and when it is determined that it is the backup time of the plant data, it is stored in the storage unit A step of extracting plant data whose retention period has passed a predetermined period from the plant data and sending it to the backup server; and a storage area of data sent to the backup server after sending the plant data from the plant computer And making it available for new plant data to be captured,
At said backup server, storing the plant data sent from the plant data management server as well as stored in the auxiliary storage unit, in the main storage means by thinning the plant data sent by said data sending means A plant data backup method comprising a backup process. The plant data consists of analog history data depending on the operation history of the plant and computer data calculated based on the analog history data,
The backup process is performed on the analog data, and the computer data is stored in the main storage device as it is by the backup server before or after the backup process. The plant data backup method according to claim 3, wherein: A plant data management server that periodically takes in plant data sent from a plant computer and saves it in a storage unit, and the plant connected to the plant data management server and stored in the storage unit A backup server for backing up data, and for backing up plant data using a system comprising a main storage means for storing data in the backup server and an auxiliary storage means having a removable storage medium In the computer-readable backup control program of
A function that allows the plant data management server to determine whether or not the backup time of the plant data that comes regularly is stored in the storage unit when it is determined that it is the backup time of the plant data A function of extracting plant data whose retention period has passed a predetermined period from the plant data and sending it to the backup server, and storing a storage area of data sent to the backup server after sending the plant data from the plant computer Realize functions that can be used for new plant data,
The backup server stores the plant data transmitted from the plant data management server in the auxiliary storage unit as it is, and also thins out the plant data transmitted by the data transmission unit and stores it in the main storage unit Backup control program for realizing the functions. The plant data consists of analog history data depending on the operation history of the plant and computer data calculated based on the analog history data,
Realizing the backup function for the analog history data,
6. The backup control program according to claim 5, further comprising a function of causing the backup server to store the computer data sent from the plant data management server in the main storage device as it is.   A computer-readable storage medium storing the program according to claim 5 or 6.

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