JP2003139883A - Method for helping diagnosis of water quality in power plant - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for helping the diagnosis of water quality in a power plant which makes it easier to take countermeasures against defections associated with water quality in the power plant. SOLUTION: The information, which is inputted into an information terminal 3 by an operator for helping the diagnosis of water quality, for applying for the reference to the effect that Company A hopes to refer for the information on the results of the water quality diagnosis by Company B is sent to a server 10b of Company B by way of an encryption/ decryption device 15 and a server 10a. Company B refers for the information for applying for the reference received by the information terminal 11b to determine the provision of related information and inputs the information for approving the application for the reference into the information terminal 11b. The response information from Company B is shown on a display of an information terminal 3 by way of a reverse route to the information for the application for the reference. The operator for helping the water quality diagnosis sends the information on the results of the water quality diagnosis which goes for Company B in line with the response information from Company B from the information terminal 3 to the server 10a of Company A. A power generation operator obtains the information on the results of the water quality diagnosis about a power plant possessed by another power generation operator.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water quality diagnosis support method for a power plant, and more particularly to a water quality diagnosis support method for a power plant suitable for application to a nuclear power plant.

[0002]

2. Description of the Related Art In the conventional water quality management of a nuclear power plant, the operating state of the nuclear power plant is diagnosed by comparing the measured water quality data with past water quality data. The water quality management is also performed by purchasing a water quality management system, which is a stand-alone computer system developed by a manufacturer specialized in water quality diagnosis, and using the program to process a large amount of data.

Since the above-mentioned water quality management system is a stand-alone computer system owned by a nuclear power plant, it is necessary to change the computer program each time the technical progress of the water quality management technique progresses. Therefore, in the end, there arises a problem that the water quality management system cannot be used or the version upgrade for updating the water quality management system has to be repeated.

Further, as a conventional system for maintaining a large amount of data from a remote place, Japanese Patent Laid-Open No. 10-14338 is known.
There is "Latest maintenance system for aircraft and military weapons" described in Japanese Patent No. 9. This system registers the data obtained by the maintenance work at each site in the center computer by satellite communication, and the access from the site analyzes the center computer using the previously registered data and diagnostic programs. Then, the analysis result is communicated to the site accessed through satellite communication.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to provide a water quality diagnosis support method for a power plant, which makes it easier to take measures against water quality-related problems in the power plant.

[0006]

Means for Solving the Problems A feature of the present invention that achieves the above object is that, from one of the electric power generators, the water quality data of the other electric power generators and the result information of the water quality diagnosis. When both the transmission request information requesting the transmission of at least one piece of information and the provision permission information of the corresponding other electric power generation company are received, the corresponding information requested to be transmitted is owned by the water quality diagnosis support company. The storage device is provided from the storage device and is provided to the electric power generator that has requested transmission through the communication line.

[0007] A certain power generation company can obtain water quality data and water quality diagnosis result information (water quality related information) regarding the power generation plant owned by another power generation company, and can obtain the water quality in the power generation plant owned by the power generation company. It is easy to take measures against related problems. Water quality related information can be shared between multiple power plants owned by different electric power companies.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION A water quality diagnosis support method for a radioactive substance handling facility, which is a preferred embodiment of the present invention, will be described below with reference to the drawings. FIG. 1 shows the configuration of the water quality diagnosis support system used in the water quality diagnosis support method for radioactive substance handling facilities. Companies A and B own nuclear power plants and thermal power plants. Company C owns a thermal power plant. The water quality diagnosis support system will be described. A server 2 owned by a water quality diagnosis support company is connected to a communication line 1 such as the Internet. The water quality diagnosis support company is a water quality diagnosis device 9 that is an information terminal 3, a storage device 4, and a computer.
Have. Information terminal 3, storage device 4 and water quality diagnostic device 9
Is connected to the server 2 via the encryption / cipher analysis device 14. Company A has a server 10 connected to the communication line 1.
a and the information terminal 11a. The sensor 12a connected to the nuclear power plant 13a owned by the company A and the information terminal 11a are connected to the server 10a via the encryption / encryption analysis device 15a. Company B has a server 10b connected to the communication line 1 and an information terminal 11b. The sensor 12b connected to the nuclear power plant 13b owned by Company B and the information terminal 11b are connected to the server 10b via the encryption / encryption analysis device 15b. Company C has a server 10c connected to the communication line 1 and an information terminal 11
have c. The sensor 12c and the information terminal 11c connected to the thermal power plant 13c owned by Company C are encrypted /
It is connected to the server 10c via the cipher analysis device 15c. The information terminals 11a, 11b, 11c are personal computers. The storage device 4 is a storage area 5 for company A.
a, 6a, storage areas 5b and 6b for company B, and storage areas 5c and 6c for company C, and storage area 7 for storing analysis / diagnosis programs, and past defect information regarding water quality, It has a storage area 8 for storing overseas information and general information such as how to measure. Companies A, B and C are electric power generators.

In nuclear power plants and thermal power plants, it is necessary to monitor the operating state of the plants using water quality data (dissolved oxygen concentration, corrosion potential, etc.). The water quality data has different types, measurement frequencies, and measurement means depending on the purpose. A plurality of sensors 12a, 12b, 12c are installed in the nuclear power plant and thermal power plant of each company, respectively, to measure water quality data of the corresponding power plant. Water quality data is measured once a day. The water quality data that cannot be measured by the sensor can be obtained by analyzing the cooling water collected from the plant. The amount of measured water quality data reaches about 35,000 points per month at a certain plant.

In the company A, the water quality data of the nuclear power plant 13a measured by the sensors 12a are collected by the information terminal 11.
It is stored in the hard disk (a) (not shown). The water quality data obtained by the analysis is input by the employee of Company A from the information terminal 11a and stored in the hard disk. The employee uses the information terminal 11a to regularly arrange the water quality data stored in the hard disk. The employee inputs the first password to the information terminal 11a and transmits the water quality data organized with the first password from the information terminal 11a to the encryption / cipher analysis device 15a. The first password is an agreement between Company A and the water quality diagnosis support company. The first password and the water quality data encrypted by the encryption / cipher analysis device 15a are transmitted from the server 10a and transmitted to the server 2 of the water quality diagnosis support company via the communication line 1. These pieces of information are transmitted from the server 2 to the encryption / cipher analysis device 14, and after being decrypted, transmitted to the water quality diagnostic device 9. The water quality diagnostic device 9 converts the data structure of the water quality data into a data structure that can be used by the analysis / diagnosis program (stored in the storage area 7) used in the water quality diagnostic device 9. The converted water quality data is stored in the storage area corresponding to the first password, that is, the storage area 5a of Company A by the water quality diagnostic device 9. Water quality data in the boiler of the thermal power plant of Company A is also measured by a sensor (not shown) and stored in the hard disk. This water quality data is also transmitted to the server 2 and stored in the storage area 5a for company A in association with the power plant name.

Also in Company B, each water quality data measured by each sensor 12b and input to the information terminal 11b,
The water quality data obtained by the analysis is stored in the hard disk of the information terminal 11b. The employee of company B is the second password set between company B and the water quality diagnosis support company,
And the organized water quality data is displayed by the information terminal 11b.
It is transmitted to the encryption / cipher analysis device 15b. The password and water quality data encrypted by the encryption / cipher analysis device 15b are transmitted from the server 10b to the server 2 via the communication line 1. This information is sent to the encryption / cipher analysis device 14
It is transmitted to the water quality diagnostic device 9 after being decoded by. The water quality diagnostic device 9 converts the water quality data into a data structure that can be used by the analysis / diagnosis program used in the water quality diagnostic device 9, and then stores the data in the storage area corresponding to the second password, that is, the storage area 5b of company B. To be done. Water quality data in the boiler of the thermal power plant of Company B is also measured by a sensor (not shown) and stored in the hard disk. This water quality data is also transmitted to the server 2 and stored in the storage area 5b for company B in association with the power plant name.

Also in Company C, each water quality data measured by each sensor 12c and input to the information terminal 11c,
The water quality data obtained by the analysis is stored in the hard disk of the information terminal 11c. The employee of company C is the third password set between company C and the water quality diagnosis support company,
And the arranged water quality data is displayed by the information terminal 11c.
The data is transmitted to the encryption / cipher analysis device 15c. The password and water quality data encrypted by the encryption / cipher analysis device 15c are transmitted from the server 10c to the server 2 via the communication line 1. This information is sent to the encryption / cipher analysis device 14
It is transmitted to the water quality diagnostic device 9 after being decoded by. The water quality diagnostic device 9 converts the water quality data into a data structure that can be used in the analysis / diagnosis program used in the water quality diagnostic device 9, and then stores the data in the storage area corresponding to the third password, that is, the storage area 5c of company C. To be done.

In the above example, each company regularly sends the water quality data to the server 2 collectively, but it is also possible to send the water quality data to the server 2 in real time.

The water quality diagnosis support company stores and manages the water quality data of each company in separate storage areas in the storage device 4. Since the water quality data of each company is stored in the storage area allocated to each company according to the password of each company, it is possible to prevent the water quality data of a certain company from being stored in the storage areas of other companies. Since the purpose of use of water quality data is different for each company, the data structure of the water quality data of each company is converted into a data structure that can be used by the analysis / diagnosis program used in the water quality diagnosis device 9 as described above. The conversion of the data structure is performed by a data conversion program prepared corresponding to the data structure of each company stored in the storage area 7. The data conversion program is called by the water quality diagnostic device 9 according to the password of the relevant company, and is used to convert the data structure of the water quality data of the company.

As described above, the water quality diagnosis support company is
It is contracted to manage the water quality data of each power generation company and provides a water quality data storage service. The water quality diagnosis support company calculates a management charge for this service according to the data amount of the water quality data received by the server 2, and charges the management charge to the corresponding power generation company. Since each power generation company requests the water quality diagnosis support company to manage the water quality data, it is not necessary to secure an employee to manage the water quality data within the company, and a large amount of water quality data is stored in the memory. Eliminates the need for equipment.

A storage device 4 is used by an electric power generator, for example, company A.
It is possible to access the own company's water quality data stored in, and to take in the water quality data to the information terminal 11a.
That is, in order to see the water quality data of the power generation plant b owned by the company A for a certain period, the employee of the company A uses the information terminal 11a to request the name of the power generation plant b, the period, and access request information to the water quality data. Then, the first password is input, and the server 10a sends it to the server 2. The server 2 outputs the information to the water quality diagnostic device 9, and the water quality diagnostic device 9 reads the water quality data for the designated period of the power generation plant b from the storage area 5a corresponding to the first password. The water quality diagnostic device 9 outputs the read water quality data and the first password to the encryption / cipher analysis device 14. The server 2 inputs the water quality data encrypted by the encryption / cipher analysis device 14 and the first password, and based on the first password, A
It is sent to the server 10a of the company. In this way, A
The storage area 5a of the storage device 4 of the water quality diagnosis support company
Can be used as if it were its own storage device. Since the water quality diagnostic device 9 accesses the corresponding storage area according to the entered password, it cannot access the storage areas other than Company A in the above example. Therefore, it is possible to prevent the water quality data of other companies from being transmitted to the company A.

In addition to the above-mentioned water quality data management service, the water quality diagnosis support business provides a water quality diagnosis service, a question and answer service, past defect information regarding water quality,
Service for providing general information such as overseas information and measurement methods, and water quality data and analysis of other electric power generators
Provide a service of providing diagnostic result information. The contents of the services of will be described for company A. It is also provided to companies B and C.

First, the water quality diagnosis service will be described. When the company A wants to carry out a water quality diagnosis of the corresponding power plant using the water quality data of the power plant owned by the company managed by the water quality diagnosis support company, the information terminal 11
A request for water quality diagnosis is sent from server a to server 2. that time,
The first password and the power plant name (for example, the nuclear power plant name) for water quality diagnosis are transmitted from the information terminal 11a to the server 2 together with the water quality diagnosis request information.
The information encrypted by the encryption / cipher analysis device 15a is decrypted by the encryption / cipher analysis device 14 and then transmitted to the water quality diagnostic device 9. The water quality diagnostic device 9 retrieves the water quality data from the storage area 5a based on the input first password and power plant name, and reads the retrieved water quality data. The retrieved water quality data is water quality data corresponding to the designated power plant name. The water quality diagnostic device 9 reads an analysis / diagnosis program from the storage area 7, and analyzes and diagnoses the water quality data using the read water quality data and the program. By executing the analysis / diagnosis program, the result of the water quality diagnosis for the corresponding power plant can be obtained. The water quality diagnosis result information is encrypted together with the first password by the encryption / encryption analysis device 14, and is transmitted from the server 2 to the server 10a of the company A through the communication line 1. The water quality diagnosis result information obtained by the water quality diagnosis device 9 is stored in the storage area 6a together with the name of the corresponding power plant. Analysis at the request of company B
The water quality diagnosis result information obtained by executing the diagnosis program is stored in the storage area 6b together with the name of the corresponding power plant. The water quality diagnosis result information obtained by executing the analysis / diagnosis program at the request of Company C is stored in the storage area 6c together with the name of the corresponding power plant. The water quality diagnosis result information for each company is stored in a separate storage area based on the password of each company.

The cost for executing the above water quality diagnosis is calculated, for example, according to the time required for processing in the water quality diagnosis device 9 using the analysis / diagnosis program. The power generation company that requested the water quality diagnosis pays the cost to the water quality diagnosis support company. The power generation company can obtain the result information of the water quality diagnosis by using the analysis / diagnosis program provided by the water quality diagnosis support company. The water quality diagnosis support company will revise and upgrade the analysis / diagnosis program as necessary. The power generation company can obtain the water quality diagnosis result information obtained by using the upgraded analysis / diagnosis program. Further, since the water quality data is managed based on the password, the water quality data other than A company is used for the analysis / diagnosis processing in the water quality diagnosis device 9 using the analysis / diagnosis program for the water quality diagnosis required by A company. It can be prevented from being used.

An electric power generator, for example, company A, accesses the water quality diagnosis result information of its own stored in the storage device 4 at a later date and transmits the water quality diagnosis result information to the information terminal 11a.
Can be taken into. This is performed in the same manner as the above-mentioned water quality data acquisition. When the user wants to see the result information of the water quality diagnosis of the power generation plant b owned by the company A, the employee of the company A uses the information terminal 11a to obtain the name of the power generation plant b, the access request information to the result information of the water quality diagnosis, and the information. 1 password is input and transmitted from the server 10a to the server 2. The water quality diagnostic device 9 to which the information is input from the server 2 reads the result information of the water quality diagnostic for the power generation plant b from the storage area 6a corresponding to the first password, and the server 2 via the encryption / encryption analysis device 14 reads it. Tell. The server 2 transmits the water quality diagnosis result information for the power generation plant b to the server 10a of the company A based on the first password. Since the water quality diagnostic device 9 accesses the corresponding storage area according to the entered password, it is possible to prevent the result information of the water quality diagnosis of another company from being transmitted to the company A.

The water quality data of the company A and the result information of the water quality diagnosis, the water quality data of the company B and the result information of the water quality diagnosis, the water quality data of the company C and the result information of the water quality diagnosis may be stored in different storage devices. .

Next, the question and answer service will be described. The employee of the company A inputs a question regarding water quality in the power plant of the company into the information terminal 11a. This question item is transmitted from the server 10a to the server 2 via the communication line 1 together with the first password. This question information is displayed on the display of the information terminal 3. The employee of the water quality diagnosis support business sees the question information and makes an inquiry to the relevant departments in the company, and obtains the reply information via the intranet in the company. This answer information is sent from the information terminal 3 to the server 2
And is transmitted to the server 10a of the company A as the inquiry destination via the communication line 1. The employee of company A views the answer information displayed on the display of the information terminal 11a. By such a service of the water quality diagnosis support business operator, the company A can be provided with advice based on the know-how related to water quality accumulated in the water quality diagnosis support business operator.

A service for providing general information such as past defect information, overseas information, and measurement methods concerning water quality will be described. For example, Company A wants to know past trouble cases and countermeasures when a trouble occurs in its own power plant due to the quality of water used in the power plant.
The employee of company A can identify the phenomenon of the trouble he / she wants to know through the information terminal 11
Enter in a. The information of this trouble event is transmitted to the server 2 via the encryption / cipher analysis device 15a, the server 10a, and the communication line 1 together with the first password. Further, this information is transmitted to the information terminal 3 via the encryption / cipher analysis device 14. From the information stored in the storage area 8 of the storage device 4, the information terminal 3 stores the information related to the input failure event (information on similar failure cases in the past including overseas, information on countermeasures for the failure cases). Search for.
Information on similar defective cases in the past retrieved and countermeasure information on the defective cases can be obtained from the information terminal 3 via the server 2, the communication line 1 and the server 10a.
1a. The employee of the company A views the information of the similar defective case in the past displayed on the display of the information terminal 11a and the countermeasure information in the defective case. As a result, the company A can know information about similar trouble cases in the past and countermeasure information for the trouble cases. In this way, Company A can easily obtain information on related trouble cases.

Finally, a service for providing water quality data and analysis / diagnosis result information of other electric power generators will be described. Company A has the same type B as its own power plant
You want to view the water quality data and the result information of the water quality diagnosis at the company's power plant. The employee of the company A inputs the browsing request information indicating that he / she wants to browse the water quality data and the result information of the water quality diagnosis in the certain period regarding the power generation plant of the company B, and the first password to the information terminal 11a, and sends them to the server 2. Send. Specifically, these pieces of information are transmitted to the server 2 via the encryption / cipher analysis device 15a, the server 10a and the communication line 1, and to the information terminal 3 via the encryption / cipher analysis device 14.

The employee of the water quality diagnosis support company looks at the request information and the request source information displayed on the display of the information terminal 3, and sees the water quality data of the company A from the company A and the power generation plant of the company B in a certain period. Know that there was a request to view the water quality diagnosis result information. The water quality diagnosis support company is
It is not possible to provide the water quality data and the result information of the water quality diagnosis of another electric power generation company (for example, Company B) just because of the request for inspection. Therefore, the water quality diagnosis support company confirms whether or not to approve the provision of the information desired by company A to company B, which owns the power generation plant a requested by information company A. . For this, an employee of the water quality diagnosis support business operator inputs into the information terminal 3 the browsing application information indicating that Company A wants to browse the water quality data and the result information of the water quality diagnosis regarding the power generation plant a. Further, the employee of the water quality diagnosis support company inputs a setting password for permitting access to the storage areas 5b and 6b in which the information of the company B is stored into the information terminal 3, and the company A desires to set the password for a certain period a. The water quality data of the power plant and the result information of the water quality diagnosis are read into the information terminal 3 from the storage areas 5b and 6b. The employee of the water quality diagnosis support company, from the information terminal 3, the encryption / cipher analysis device 15a and the server 10 of the input browsing application information and the read water quality data of the power generation plant a and the result information of the water quality diagnosis.
It is transmitted to the server 10b of company B via a or the like. The browsing application information and the water quality data and the water quality diagnosis result information of the power generation plant a are decrypted by the encryption / encryption analysis device 15b and displayed on the display of the information terminal 11b.

Company B looks at the displayed browsing application information and
It is determined whether the company can provide the desired information to the company A. When Company B determines that all information subject to the browsing application (referred to as browsing target information) may be provided to Company A, browsing application approval information is provided to Company A of the browsing target information. When refusal is made, it is possible to provide information of refusal of browsing application, and when it is judged that part of the browsing target information may be provided to Company A, information of partial approval of browsing application and browsing target information can be provided. The range of information is input to the information terminal 11b. Company B's decision regarding the provision of information desired by Company A is based on the results of the water quality data and the water quality diagnosis of the power plant a, which is transmitted from the water quality diagnosis support company as well as the browsing application information. Information can also be considered. Since the company B can add the water quality data of the power generation plant a and the result information of the water quality diagnosis to the judgment material, the company A can more appropriately judge whether or not the information desired by the company A can be provided. Even if the company B decides to provide the information to the company A, the company B can see the actual water quality data and the result information of the water quality diagnosis, so that the information that cannot be provided to the company A can be directly selected.

The information regarding the approval of the browsing application, the information regarding the partial approval of the browsing application, and the information regarding the refusal of the browsing application are reply information to the browsing application of the company B, that is, the electric power generation company who has received the browsing application. Further, the information regarding the approval of the browsing application and the information regarding the partial approval of the browsing application are the browsing approval information.

The reply information of the company B output from the information terminal 11b is encrypted by the encryption / encryption analysis device 15b, reaches the server 2 via the server 10b and the communication line 1, and is transmitted to the encryption / encryption analysis device. Decoded by 14. The reply information of the company B output from the encryption / cipher analysis device 14 is displayed on the display of the information terminal 3. If the answer from Company B is “Refusal application refusal”, the water quality diagnosis support business operator inputs “I could not provide the desired information because the approval of Company B could not be obtained” to the information terminal 3 and the server 2, the data is transmitted to the server 10a of the company A via the communication line 1. The company A can know the answer transmitted from the water quality diagnosis support company by displaying it on the display of the information terminal 11a.

If the answer from B company is "permitting the provision of all information desired by A company, that is, approval of browsing application", the water quality diagnosis support company sends it to B company for approval. Then, the water quality data of the power generation plant a and the result information of the water quality diagnosis are transmitted from the information terminal 3 to the server 10a of the company A. Specifically, the a / the water quality data of the power plant and the result information of the water quality diagnosis are the encryption / encryption analysis device 1
4, transmitted to the server 10a via the server 2 and the communication line 1, and transmitted to the information terminal 11 via the encryption / encryption analysis device 15a.
It is transmitted to a. The information is encrypted by the encryption / cipher analysis device 14 and the encrypted information is decrypted by the encryption / cipher analysis device 15a. Company A can obtain the desired water quality data of power plant a and the result information of the water quality diagnosis.

When Company B receives a notice that "A company permits the provision of some information desired by A company, that is, partial approval of browsing application", it is sent to B company for approval. Of the water quality data of the power plant and the result information of the water quality diagnosis,
The information that the company B has permitted to provide to the company A (referred to as provision permission information), for example, water quality diagnosis result information, is transmitted from the information terminal 3 to the server 10a of the company A. The provision permission information is sent from the information terminal 3 to the encryption / cipher analysis device 1
4, the information is transmitted to the server 10a via the server 2 and the communication line 1, and is transmitted to the information terminal 11 via the encryption / cipher analysis device 15a.
It is transmitted to a. The information is encrypted by the encryption / cipher analysis device 14 and the encrypted information is decrypted by the encryption / cipher analysis device 15a. Company A can obtain the information on the result of the water quality diagnosis of the provided power generation plant a.
In the case where the company B partially approves the browsing application, the water quality diagnosis support company can provide only a part of the information requested by the company B by the intention of the company B as well as the server from the information terminal 3 similarly to the above. 10a.

In the present embodiment, as described above, it is not necessary for each electric power generation company to secure an employee who manages water quality data, and it is not necessary to prepare a storage device for storing a large amount of water quality data. . Each power generation company can use the analysis / diagnosis program upgraded by the water quality diagnosis support company, and the power generation company does not need to prepare and upgrade the analysis / diagnosis program by himself. In addition, the power generation company can obtain an answer based on the specialized knowledge owned by the water quality diagnosis support company by asking a question to the water quality diagnosis support company. Further, by accessing the storage device of the water quality diagnosis support company, similar past trouble information (for example, information regarding increase in dissolved oxygen concentration in water) can be easily collected.

The water quality data and the result information of the water quality diagnosis are stored in different storage areas (or storage devices) for each power generation company.
Is stored in, and a different password is given to each electric power generation company from the water quality diagnosis support company. Since the water quality diagnostic support company has a processing program for the water quality diagnostic device 9 so that access to each storage area cannot be accessed without using a password, the power generation company stores the company's data using the password. Although it is possible to freely access the stored storage area, it is not possible to access the storage area where the data of other electric power generators are stored. As described above, in this embodiment, security is completely ensured for the information management of each electric power generator.

In this embodiment, one power generation company can obtain water quality related information (specifically, water quality data and water quality diagnosis result information) regarding the power generation plant owned by another power generation company. For this reason, an electric power generator, when a malfunction related to water quality (for example, an increase in dissolved oxygen concentration in water) occurs in its own power plant,
You can obtain water quality related information on the power plants of other power producers who have experienced similar problems. At the same time, information on measures that can eliminate the problems related to the water quality (measures taken by other power generation companies) can be obtained from the storage device of the water quality diagnosis support company, as with the water quality related information. In this way, water quality-related information and defect countermeasure information can be shared among electric power generators, and a certain electric power generator can quickly determine a countermeasure for a defect in its own power plant and implement the defect countermeasure promptly. it can.

Another embodiment relating to a service of providing water quality data and analysis / diagnosis result information of other electric power generators,
This will be described below. The employee of the company A uses the information terminal 11a to browse information requesting that the user of the company A wants to browse the water quality data and the result information of the water quality diagnosis regarding the power generation plant of the company B, the name of the person in charge of the company A, and the first password. And send it to the server 2. The browse request information is displayed on the display of the information terminal 3 via the encryption / cipher analysis device 14. The employees of the water quality diagnosis support business are the first
After confirming the password, the browsing request information and the name of the person in charge of the company A are encrypted / encrypted by the information terminal 3 from the encryption / encryption analysis device 14
Tell. When the browsing request information is input from the information terminal 3, the encryption / encryption analysis device 14 uses the encryption generation program incorporated in the encryption / encryption analysis device 14 to browse the access request information and the name of the person in charge of company A. Performs a specific encryption process. The encryption / cipher analysis device 14 notifies the server 2 of the encrypted browsing request information and the name of the person in charge of the company A.
The server 2 transmits the encrypted browsing request information and the name of the person in charge of the company A to the server 10b of the company B.

The employee of company B who has received such information from the water quality diagnosis support company confirms the browsing request information from company A. The company B determines whether or not it is possible to provide the information desired by the company A to the company A by viewing the displayed browsing application information. If Company B refuses to provide the information to be browsed,
Information on refusal of browsing application is input to the information terminal 11b and transmitted to the server 10a of the company A and the server 2 of the water quality diagnosis support company via the communication line 1. When Company B approves the provision of the information to be browsed, the information on permission for browsing application and B
The company access password is input to the information terminal 11b and transmitted to the server 10a of the company A and the server 2 of the water quality diagnosis support company via the communication line 1. The water quality diagnosis support company registers the company B access password transmitted from company B in the water quality diagnosis device 9. The access password for company B is permission information for providing browsing target information.

The employee of company A inputs the browsing request information, the password for access to company B sent from company B, and the first password, which is the password of the company, to the information terminal 11b and sends it to the server 2. . The information is sent from the server 2 to the water quality diagnostic device 9 via the information encryption / encryption analysis device 14. The water quality diagnostic device 9 can access the storage areas 5b and 6b based on the password for accessing the company B, and the browsing target information is stored in the storage areas 5b and
Take in from 6b. The water quality diagnostic device 9 creates the first transmission information to the company A based on the first password transmitted from the company A and the read target information. Furthermore, the water quality diagnostic device 9 creates the second transmission information addressed to the company B based on the access password for the company B and the read target information. The first transmission information is encrypted by the encryption / encryption analysis device 14 and transmitted from the server 2 to the server 10a of company A. By displaying the first transmission information on the display of the information terminal 11a, the company A can know the water quality data and the result information of the water quality diagnosis in the certain period regarding the applied power generation plant a. The second transmission information is encrypted by the encryption / cipher analysis device 14 and transmitted from the server 2 to the server 10b of company B. Therefore, the company B can know that the water quality diagnosis support company has transmitted the first transmission information to the company A and the content of the first transmission information based on the permission of the company B. Company B can confirm whether the information transmitted to Company A is within the range permitted by Company B. The water quality diagnostic device 9 deletes the company B access password by obtaining from the server 2 information that the first transmission information has been transmitted from the server 2 to the server 10a. For this reason, even if the company A obtains the first transmission information and then accesses the storage device 4 again by using the access password for the company B, the water quality diagnostic device 9 does not permit the access to the storage device 4. In order for the company A to access the information of the company B in the storage device 4, it is necessary for the company B to obtain another B company access password. In this way, the water quality diagnosis support company ensures security so that the information of each power generation company is not leaked to a third party.

The "service for providing water quality data and analysis / diagnosis result information of other electric power generators" in this embodiment is also the same as "water quality data and analysis / diagnosis result information of other electric power generators" in the above-mentioned embodiment. It is possible to obtain the effect generated by the "providing service of".

[0038]

According to the present invention, it is possible to obtain water quality-related information regarding a power plant owned by another electric power generator, and it is easy to take countermeasures against defects related to water quality in a power plant owned by the company. . Water quality related information can be shared between multiple power plants owned by different electric power companies.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a water quality diagnosis support system to which a water quality diagnosis support method for a power plant according to a preferred embodiment of the present invention is applied.

[Explanation of symbols]

1 ... communication line, 2, 10a, 10b, 10c ... server,
3, 11a, 11b, 11c ... Information terminal, 4 ... Storage device, 9 ... Water quality diagnostic device, 12a, 12b, 12c ... Sensor.

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Naoshi Usui             Hitachi 2-3-1, Saiwaicho, Hitachi-shi, Ibaraki             Engineering Co., Ltd. (72) Inventor Nobuyuki Ota             Hitachi 2-3-1, Saiwaicho, Hitachi-shi, Ibaraki             Engineering Co., Ltd. (72) Inventor Takaho Kasahara             2-12-1 Omika-cho, Hitachi-shi, Ibaraki Prefecture             Ceremony Company Hitachi, Ltd. (72) Inventor Naohiro Kusumi             2-12-1 Omika-cho, Hitachi-shi, Ibaraki Prefecture             Ceremony Company Hitachi, Ltd. F term (reference) 2G075 CA30 CA40 FB01 FB04 FB07                       FB08 FB10 FD04 GA15 GA24                       GA27 GA34

Claims (2)

[Claims] 1. Water quality data relating to water quality measured at a power plant owned by each electric power producer, transmitted from a plurality of electric power producers via a communication line, and each electric power generation. The result information of the water quality diagnosis obtained by analysis and diagnosis using the water quality data of the operator,
Any of a storage area set for each of the power generation companies within a storage device owned by the water quality diagnosis support company, and a storage device owned by the water quality diagnosis support company provided for each of the power generation companies And storing the data for each of the electric power generators, and storing the data of at least one of the water quality data of the other electric power generators and the result information of the water quality diagnosis from one of the electric power generators. When both the transmission request information requesting transmission and the provision permission information of the other electric power generation company concerned are received, the corresponding information requested for transmission is taken out from the storage device and transmitted through the communication line. A method for supporting water quality diagnosis of a power plant, which is provided to the electric power generator. 2. The water quality diagnosis result information is transmitted from the electric power generation company via the communication line as water quality diagnosis request information and password information set for the electric power generation company, and the password is obtained. Based on the information, the water quality data of the power generation company that requested the water quality diagnosis is retrieved from the storage device based on the water quality diagnosis request information, and is taken out by the water quality diagnosis support company. 2. The water quality diagnosis support method for a power plant according to claim 1, which is obtained by performing analysis and diagnosis using the retrieved water quality data by a water quality diagnosis device that is owned.