JP2001282945A - System for maintaining various plants and restoring abnormality - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simply and inexpensively realize the maintenance and the abnormality restoration of plant facilities located at a remote site by effectively utilizing the Internet and the mail function of a portable terminal. SOLUTION: In this system for maintaining and restoring abnormality of various plants which consists of site plants provided with a monitor monitoring the operation data of private power generation equipment, a service spot which manages the maintenance of one or a plurality of site plants and dispatches a serviceman performing restoration repair in case a site plant breaks down, and a chief managing spot which manages service information for failure restoration as well as the technique information of the respective site plants, respective WWW server device connect the Internet network to among the site plants, the service spots and the chief managing spots, the serviceman carries a mobile terminal with a mail function such as a portable telephone, a PHS, etc., and the Internet network through a mobile radio network is connected between the mobile terminal and the service spot.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to various types of power plants, chemical plants and other land-based plants, ships and marine boring plants and the like, in which a service technician can make a business trip to the site in the event of a plant abnormality to quickly perform repairs and repairs. It relates to plant maintenance and abnormal recovery systems.

[0002]

2. Description of the Related Art In a power supply system which has been monopolized by a regional power company, deregulation has been progressing, and various private power generators have sold power to the local power company, thereby lowering power supply costs and reducing energy supply. We are aiming for decentralization and efficiency. In recent years, large-scale retail electricity has been liberalized, and the number of new entrants from other industries using the transmission lines (contract fees) of regional power companies has been increasing.

[0003] However, such private power generators
Unlike local power companies, the technical competence and maintenance experience of the power generation equipment are inadequate, so generally a maintenance contract is signed with the manufacturer that manufactured and delivered the power generation equipment, and whether the manufacturer has a service base, Have affiliated companies have service bases,
When the power generation equipment is abnormal, a service person belonging to the service base is dispatched as necessary to repair and restore the local power generation equipment.

In such an in-house power generation abnormality monitoring system, for example, in a service base or the like that manages a plurality of local power generation facilities, an automatic notification function is provided in an abnormality monitoring panel of each power generation facility, a personal computer, or the like. When an abnormality such as an overcurrent or a circuit breaker is turned off, a message indicating the occurrence of the abnormality by the automatic dial function is transmitted to the service base using a telephone line. Is called by the pager 80.

[0005] A configuration of an abnormality monitoring system for a private power generation facility using such a public line will be described with reference to FIGS. 10 and 5. In FIG. 5, reference numeral 5 denotes a technology / service information management unit (supervised management base) located at a power generation facility manufacturer or the like. The plant technical information and maintenance information are stored in a data storage unit 59 such as a server. That is, the storage unit in the central management base 5 stores customer data such as engine output (cogeneration engine), generator capacity, number of units, etc. of each customer (local power generation facility) as a management database of technical information. In addition, protection device list data in the case where an overcurrent, an overspeed, a decrease in oil pressure, an increase in exhaust temperature, or the like occurs at each customer (local power generation facility) is stored. Also, as a service information management database, a check sheet, a failure recovery manual, and failure case data for each electrical or mechanical system and each abnormal state are stored. These data in the storage device are set to be searchable from the corresponding service base or the respective local power generation facilities 1 via the public line 70 or the dedicated line, and are provided for predetermined use. 3
Alternatively, daily and monthly report data is collected from each of the on-site power generation facilities 1, and operation data at the time of abnormality, abnormality recovery data, and the like are collected, and accumulation and learning of the data are performed.

[0006] In each of the on-site power generation facilities 1, a database for collecting and accumulating daily and monthly report data indicating the operation status from each engine, generator, and the like, as well as operation data at an arbitrary time such as when an alarm signal is issued. The data in these databases is transmitted to the storages in the service base and the general management base 5 via the public line 70 in real time or as needed.

[0007] Further, the storage unit on the service base 3 side stores alarm data obtained from each local power generation facility 1 under the jurisdiction,
In addition to a management database of collected data such as daily and monthly report data, a management database of service information such as operating hours, failure histories, and maintenance histories for each of the corresponding generators of the respective local power generation facilities is provided.

[0008] Next, a brief description will be given of an abnormality detection and recovery procedure in the conventional private power generation abnormality monitoring system. The on-site power generation facility 1 fetches sensor signals indicating the operating state of each corresponding generator or engine into a corresponding database, and as a daily report or monthly report data, together with the service base under its control, as well as the general control base 5.
Via the public line 70. Further, a change in the on / off state of the generator breaker connecting the generator and the commercial power line and an alarm signal are transmitted to the service base 3 in real time, and the service base 3 responds from the change in the on / off state of the generator breaker. It is determined whether or not there is an abnormality in the power generator.
Send through. The local power generation facility 1 receives the alarm signal and sends the immediately preceding operation data to the service base and the general management base via the public line 70. If a natural disaster such as an earthquake or flood, an overcurrent accident, or an abnormality such as an abnormal engine exhaust gas temperature or lubricating oil temperature is found on the local power generation equipment 1 side, not on the service base 3, an alarm signal and the immediately preceding alarm signal will be issued. Is transmitted to the service base 3 via the public line 70.

In the service base 3, alarm data is created based on the alarm signal and the immediately preceding operation data, and the alarm data is converted into an alarm code (ATDT0332123111 ,,, 0131).
09) Pager 8 of serviceman 7 who can convert and respond
0 was informed. Upon receiving the pager 80, the serviceman 7 receives the customer code, the abnormal generator name, the failure type, the failure item, etc. from the alarm code (for example, the alarm code = 013109).
Indicates 01: customer code, 3: Unit 3, 1: severe failure, 09: start failure. Check). After the confirmation, after confirming the reception at the service base 3, the user goes to the local power generation equipment side where the abnormality has occurred, and receives an electric system or a machine obtained by facsimile or the like via the public line 70 from the management section of the technical and service information. Perform recovery work based on the check sheet and failure recovery manual for each abnormal state of the system.

[0010]

However, in the system in which the serviceman 7 is called by the pager 80 as described above, it is unclear whether the pager 80 itself is a one-way street and the serviceman 7 can immediately confirm reception. ,
In addition, the pager 80 is a one-to-one telephone communication service, and it is necessary to perform pager communication by selecting which service person can respond at the service base, which complicates the call operation. Also, the serviceman who has received the pager must always carry the alarm code (ATDT0332123111 ,,, 013109) conversion table, which imposes an excessive burden on the serviceman.

In addition, the change of the ON / OFF state of the circuit breaker between the on-site power generation facility 1 and the service base 3 is transmitted in real time. And the transmission of driving data.
Because we have jurisdiction over the services of multiple local power plants,
There is a risk that the personal computer at the service base 3 will be in a receiving busy (BUSY) state, making it impossible to exchange signals with other equipment.

In addition, when the local power generation facility 1 and the service base 3 and the general management base 5 are all located at remote locations, and when each is at a remote location, in particular, the local power generation facility 1 and the service base 3 are located within the same area public line 70. Although there are many cases, there are many remote places between these and the Technology and Service Management Department, and in particular, in the case of an overseas line that crosses a national border, the cost of the public line 70 becomes extremely large. Such maintenance is usually performed while the public line 70 is open for 24 hours, and this amount cannot be ignored due to the maintenance burden.

In addition to the in-house power generation facility 1, various industrial plants have local plant sites scattered in remote locations in Japan and overseas with the aim of achieving a low-cost area. Due to such a situation change, it is becoming more difficult to quickly deal with troubles and regular maintenance than in the past, and how to solve this has become a major issue. Further, with the spread of local plant bases, there is also a problem that maintenance information stays at each plant base and information sharing beyond the plant bases becomes sparse, making it difficult to make use of past trouble experiences.

In the prior art, if the public line 70 is disconnected due to the Great East Japan Earthquake or the like, it will not operate properly again unless it waits until restoration.

[0015]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a power plant and other driving equipment and a local plant having a monitoring device for monitoring operation data of the driving equipment. A service base that manages the maintenance of the local plant and dispatches servicemen who perform repairs and repairs when the local plant breaks down, and a supervision that manages service information for failure recovery along with the technical information of each local plant. In a maintenance and abnormality recovery system for various plants including a management base, the local plant, the service base, and the general management base are connected to the Internet or an intranet network via a public line or a dedicated line by respective WWW server devices. , Let the service person have a mobile terminal with a mail function such as a portable terminal or PHS Characterized in that between said mobile terminal and the service centers are connected to the Internet network via a mobile radio network.

According to a second aspect of the present invention, when a failure occurs on the local plant side, the service base or the local plant side transmits an alarm message to the mobile terminals of a corresponding group of service personnel via the Internet, and It is characterized by prompting a mail reply.

According to this invention, since the service base side performs a two-way communication with the service person via the Internet of the mobile network, a service that can respond quickly and technically and timely. It is possible to select a man and efficiently go straight to the site. In addition, since it is via the Internet using a mobile wireless network, the fixed communication network of the service base is busy (BUS) in the event of a catastrophe such as an earthquake.
Even in the case of Y), signals can be easily exchanged.

The invention according to claim 3 is characterized in that detailed alert information is transferred to a service person who can respond based on the mail reply via the Internet. According to this invention, preliminary work for restoration and repair can be performed before the vehicle arrives at the site based on the detailed information. The detailed alert information also includes a work file created by the service base based on the alert message.

According to a fourth aspect of the present invention, a service file is created on the service base based on the warning message,
When a reply mail from the service person is received, the work file in which necessary information is entered is transmitted to the service person in charge via the Internet. The invention according to claim 5 is characterized in that the serviceman who has completed the restoration work of the local plant writes necessary information such as work time and replacement parts in the work file, and then transmits the work file to the Internet. .

[0020] In the invention according to claim 6, the service base searches for the presence or absence of a work file in which the restoration work of the local plant has been completed. Is created.

According to a seventh aspect of the present invention, the created bill is transferred to a registered administrator via the Internet by e-mail, and the administrator confirms the transferred e-mail content and performs settlement. It is characterized by.

According to these inventions, it is possible to perform a series of operations from dispatch of a service person to issuing and settlement of a bill with one operation file.

According to an eighth aspect of the present invention, in the monitoring device on the local plant side, when a failure occurs, an alarm message and operation data up to a predetermined time before the failure occurrence point as a starting point are provided via the Internet. It is characterized by sending to the monitoring device of the base or the central management base,
In particular, as in the ninth aspect of the present invention, the sampling intervals of the operation data up to a predetermined time before the time when the failure occurs are set to be different.

In particular, as in the tenth aspect of the present invention, the sampling interval of the data immediately before the occurrence of the failure is made dense, and the data is used for trouble analysis of the electric system and the hydraulic system. It is good to use for trouble analysis.

[0025] The invention according to claim 11 is provided with a homepage to be disclosed to the monitoring device of the central management base by access from the Internet, while the local plant or service base has an access right to the homepage,
A browser for browsing technology / service information published on the homepage via the Internet is provided.

According to this invention, even if the serviceman arriving at the local plant does not know the individual IP address, for example, by selecting the local plant name or the like on the browser screen, the serviceman corresponding to the central management base section can be selected. You can easily access the homepage.

According to a twelfth aspect of the present invention, the central management base has a database for registering technical service information of the local plant, and a response of a serviceman in charge with a corresponding warning message and detailed alarm information of the local plant. Repair and recovery are performed while data is exchanged with the database via the Internet.

According to this invention, repair and restoration can be performed while exchanging data bidirectionally via the Internet, and the speed and accuracy of repair and restoration can be ensured.

Also, the headquarters and management site can grasp the operating status of the user's local plant 106 via the Internet from time to time, and the maintenance information indicating the operating status and the maintenance status can be stored in other information. The maintenance information can be fed back to other plants as well.

[0030]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to an embodiment shown in the drawings. However, the types, connection states, relative arrangements, and the like of the constituent units described in this embodiment are not merely intended to limit the scope of the present invention, but are merely illustrative examples, unless otherwise specified. . FIG. 1 is an overall block diagram of a system configuration of a maintenance and abnormality recovery system for various plants using the Internet according to an embodiment of the present invention. FIG. 2 is a detailed block diagram showing a system configuration of a local plant (private power generation plant). FIG. 3 is an operation diagram showing a sampling time of past operation data that goes back from the time when the alarm signal is generated.

In FIG. 1 and FIG. 2, a private power generation plant 1 has an engine 1 for cogeneration, respectively.
1, a generator 12 connected thereto, a circuit breaker 13 for supplying electric power to a commercial power supply line, and a power generation facility 10 including a detector 14 for detecting an operation state and a process variable thereof, and the like. Service base 3 via Internet 2 using public line while monitoring status
Operating data and an alarm signal to the central control base 5, and from the bases 3 and 5, a plant monitoring device 20 configured to be able to capture necessary service information and technical information via the Internet 2. In this embodiment, the monitoring device 20 includes, for example, a personal computer (personal computer) 21 and a WWW server device 22 for plant monitoring.

The plant monitoring WWW server device 22 takes in process variables and the like collected on the power generation facility 10 side, converts them into text data in HTML format, and stores them in a corresponding database.
1. A plurality of databases 222 for storing the text data in the HTML format. The data in the HTML format stored when an access signal is supplied from the service base 3 or the integrated management base 5 via the Internet 2 is transmitted to the Internet 2 A processing unit 223 that sends the data to the above-mentioned bases and supplies them to the respective bases. When control data in the HTML format is supplied from the bases 3 and 5 via the Internet 2, the control data is converted into control data in a plant control format. And a conversion processing unit 224 for supplying the power to the power generation facility.

The personal computer 21 reads out the corresponding HTML-format text data from the plant monitoring WWW server device 22 at preset intervals, such as when an alarm signal is generated or at a daily or monthly report data transmission interval.
The information is sent to the Internet 2 and supplied to each site, or the WWW of each site is sent at the time of sending an alarm signal from the service site 3 or at a preset cycle.
It has an autonomous data transmission / reception unit 211 for extracting corresponding HTML text data from the server device via the Internet 2 and storing it in the own plant monitoring WWW server device 22.

When the alarm signal is generated, the personal computer 2
1, data of the past hour from the current time as WW
As shown in FIG. 3, the stored data is stored in the W server device 22 for ten points at 0.5 second intervals for the past five seconds for trouble analysis of the electric system and the hydraulic system. Until 0 to 12 minutes before, 12 points are saved at 1 minute intervals, and up to 13 to 60 minutes before, 16 points are saved at 3 minute intervals, and these 28 points are stored for trouble analysis of the mechanical system.

The data is stored in the RA on the personal computer 21 side.
It is preferable that the data is cyclically (endlessly) stored in a high-speed storage unit such as M and transferred to the WWW server device 22 when the abnormality occurrence signal is received.

With this configuration, in this embodiment, the minimum and most necessary data can be stored and transferred via the Internet 2 in accordance with the corresponding trouble analysis. The plurality of databases 222 of the WWW server device include a database for collecting and accumulating daily and monthly report data indicating an operation status from each engine, a generator, and the like.
It has a database that stores data of the last 60 minutes before when the alarm signal is issued.

In this embodiment, when an abnormality occurs, an alarm signal may be sent to each site via the Internet 2, or the fixed terminal (fixed telephone) may be automatically turned "ON" by the personal computer. An alert may be sent to the service base 3 under the jurisdiction over the public telephone line 70. The Internet 2 is a wide area network (WAN) connected to a local area network (LAN) via a public telephone line 70 and a plurality of local area networks connected to each other. The WWW server device 22 using the TCP 21 enables communication via the Internet 25 by using TCP / IP as a communication protocol.

For the Internet 2, a monitoring device 30 provided at a service base 3 that manages the corresponding local plant 1, and a central management base that centrally manages the local service base 3 and all local plants 1. 5 is connected to the monitoring device 50.

FIG. 4 is a detailed block diagram showing the system configuration of the service base. In the monitoring device 30 provided at the service base 3, a personal computer 31 and the like and a plant monitoring WWW server 32 similar to the above are further provided. A wireless mobile terminal 9 owned by each serviceman 7 can be connected to the Internet 2 by a mobile terminal wireless line 6 having a base station 8. The wireless mobile terminal 9 is also connected to the monitoring device of the local plant 1. TCP same as 20
Using a communication protocol corresponding to the Internet 2 based on / IP, a setting is made such that mail can be collected between the wireless portable terminals 9.

The service technicians 7 belonging to the service base 3 are divided into a plurality of groups according to, for example, the type of failure or working hours, and the monitoring device 30 is connected to a public telephone line 70.
For example, based on the alarm signal and the abnormality information transmitted from the local plant 1 via the Internet 2 and the plurality of mobile terminals 9 of the group of service personnel 7 in the corresponding time zone, It is set so that the alarm signal and the contents of the abnormality are forwarded by mail.

The W of the monitoring device 30 on the service base 3 side
The WW server device 32 controls each local power generation facility 1
Alarm data (alarm signal, primary alarm information,
The corresponding serviceman 7 together with the detailed alarm information) stores the repair data at the time of repairing the on-site power generation equipment 1, the database 321 for collecting the repair data, the management database 322 for collected data such as daily and monthly report data, and the corresponding power generation of Service information management database 323 such as operating time, failure history, and maintenance history for each machine, and database 324 for generating a work file each time an alarm signal is generated
HTML data stored when an access signal is supplied from the local plant 1 or the integrated management base 5 via the Internet 2 is sent out to the Internet 2 to send the data to the respective bases. A processing unit 325 for supplying, and a search processing unit 326 for accumulating the control data in HTML format from each of the bases 3 and 5 via the Internet 2 for each file.
Etc.

When an alarm signal is generated, the personal computer 31
A search is made for a plurality of service technicians 7 in a working state, and the service technicians 7 together with an alarm signal and, for example, the contents of a conventional pager transmission, such as one local plant where abnormality has occurred, an abnormal generator name, a failure type, and a failure item. There is autonomous mail transmission / reception software 311 for sending mail to the portable terminals 9 of the plurality of service personnel 7 so as to display items as shown in FIG. 5 without coding the corresponding primary alarm message. The mail software is a serviceman 7 that has been confirmed to be received from the group of servicemen 7 transmitted by multicast.
More detailed alarm information is transmitted to the portable terminal 9.

Therefore, it is preferable to use the i-mode provided by NTT DoCoMo, which has a large mail storage amount in the portable terminal 9. The personal computer 31 has a corresponding HTML from the WWW server 32 when an alarm signal is generated.
Work file text data of the format is read out, and the repair data sequentially sent to the WWW server device 32 via the Internet 2 at the time of restoration and repair of the serviceman 7 dispatched to the local plant 1 is read out from the database of the server device. Work file creation software 312 for creating a corresponding work file (the work file creation software may store the work file software in the mobile terminal 9 when the mobile terminal 9 is in the i-mode). After searching for the completed work file, the contents of the completed work file are checked, and the work time, replacement part price, travel cost, etc. are automatically accumulated, and the accumulated work file is retrieved. Invoice creation software 313 for creating an invoice based on data, and the created invoice is registered It has electronic approval software 314 that forwards the e-mail to the administrator and the administrator confirms the contents of the transmitted e-mail and makes payment. The settled invoice is sent to the customer either automatically or on a rotating basis. I do.

FIG. 6 is a detailed block diagram showing the system configuration of the central management base.
In this case, the personal computer 51
And the like, and a WWW server device 52. The WWW server device 52 stores customer data such as engine output (cogeneration engine), generator capacity, number of units, etc. of each customer (on-site power generation facility). A technical information management database 521 in which text data in HTML format is stored as protection device list data when an overcurrent, an overspeed, a decrease in oil pressure, an increase in exhaust temperature, or the like occurs at each customer (on-site power generation equipment). A service information management database 5 in which check sheets, failure recovery manuals, and failure case data for each electrical or mechanical system and each abnormal state are stored in an HTML format.
22 and the like.

On the other hand, in the personal computer 51, the technical service information stored in the databases 521, 522 is grouped for each local plant 1, or the service base 3 is grouped as an upper hierarchy and the local plant 1 is grouped as a lower hierarchy. Homepage 51
1 is provided.

On the other hand, the monitoring device 30 of the service base 3
Also, the monitoring device 20 of the local plant 1 is provided with a browser 53 as search software for browsing the home page of the technical service information provided at the general control base 5 side.

Here, a password is set in the monitoring device 30 of the service base 3 and the browser 53 of the monitoring device 20 of the local plant 1 via the Internet 2, and the home page 5 is set from the local plant 1 via the Internet 2.
When the access request of No. 11 is received, the password of the predetermined read access is collated, and when the collation is obtained, the homepage 511 is opened. Therefore, it is possible to deny access to the homepage from a third party who does not know the read access password.

The personal computer 51 of the central control base 5 collects daily / monthly report data from the service base 3 or the respective local power generation facilities 1 via the Internet 2 and collects operation data at the time of abnormalities and abnormal recovery data. Based on the data, the technical information and service information are analyzed and learned, and the data is edited by the homepage editor 512, and the edited information is stored in the prepared homepage 511 in the local plant. A homepage creation process is performed to assign each homepage or each service base 3. For this reason, the homepage 511 is constantly updated with the latest operation information for each local plant 1 or each service base 3.

The homepage 511 includes, for example, a monitor screen for displaying plant operation information. The contents of the homepage 511 include text, photographs, etc., and can be appropriately created according to the situation of the disaster prevention equipment to be targeted. it can.

On the other hand, the monitoring device 2 provided in the local plant 1
0, a browser 53 and an access right management unit (not shown) are provided. The browser is search software for browsing the homepage of the integrated management base 5, and since the homepage to be browsed is predetermined, the IP address of each homepage is registered in advance.

Next, an example of the unified management operation of the plant abnormality monitoring system combining the Internet 2 and the portable terminal 9 will be described with reference to the flowcharts of FIGS. For example, the operation information of the local plant 1 is transmitted to the service base 3 and the five central management bases via the Internet 2 at regular intervals such as once in the morning and evening and at the beginning of the month (S3), and the respective WWW server devices 22 and 32 are transmitted. , 52 and a personal computer to collect regular maintenance information such as daily reports and monthly reports, and to check the daily maintenance information by analyzing these. (S
1)

The monitoring device 20 of the on-site plant 1 is set so that the circuit breaker status data "on / off" of each generator is transmitted periodically in the morning and evening without transmitting in real time. (S2)

For such daily maintenance management work,
For example, if a failure occurs in the local plant 1 (S
4) In addition to the alarm signal, along with the primary alarm messages such as the name of the local plant where the abnormality occurred, the name of the abnormal generator, the type of failure, and the item of failure, as shown in FIG. And for the last 5 seconds for trouble analysis of hydraulic system, save 10 points at 0.5 second intervals,
Also, from 0 to 12 minutes before for mechanical trouble analysis,
Twelve points are stored at one-minute intervals, and sixteen points at three-minute intervals are stored up to 13 to 60 minutes before. These 38 points are integrated with the monitoring device 30 of the service base 3 as detailed alarm data via the Internet 2. The data is transferred to each server device of the monitoring device 50 at the management base 5. (S5)

As shown in FIG. 8, the personal computer 31 of the service base 3 receives the alarm from the local power generation facility 1
(S11), diagnostic information is created based on the received alarm content, the diagnostic information is transferred to the WWW server device 32, and the server device 32 creates a mail for sending the diagnostic information (S12), and The diagnostic information is written into the work file stored in the server device 32 based on the primary alarm message and the detailed alarm data, and a corresponding work file is created. (S13)

On the other hand, when the alarm signal is generated, the personal computer 31 of the service base 3 searches for a plurality of groups of service personnel 7 who are in the working state, and sends the primary alarm message shown in FIG. Alternatively, the data is automatically transferred to the registered mobile terminal 9 of each serviceman group 7 using the multicast of the Internet. (S14)

The service technician 7 who received the mail at the portable terminal 9 (i-mode) confirms the reception, sees the primary alarm message, and, if responsive, responds to the service base via the Internet 2 using the browser of the wireless portable terminal 9. A mail is transmitted to the effect that it is possible to support the third WWW server device 32.

The reply mail from the service person 7 is sent to WWW
When the server device 32 receives the information (S15), the name of the person in charge is entered in the person in charge column of the corresponding work file.
The work file is filled with necessary information such as the name of the power plant that issued the alarm, issued as a work file, sent to the Internet 2, and the issued work file is sent to a person in charge by e-mail. (S16) The other serviceman 7 confirms the reception. However, if it is impossible to go to the site in terms of time by looking at the content of the received mail, or if the user goes to the site, there is no technical response. Consider your current situation, such as possible, and do not send an e-mail if you cannot respond.

It should be noted that the WWW server device 5 of the central management base 5
In step 2, a failure recovery manual is created based on the primary warning message and the detailed warning data, and is written on the homepage of the corresponding local plant 1.

When the serviceman 7 arrives at the site, the homepage 511 of the WWW server device 52 of the integrated management base 5 is called using the local monitoring device, and the technical information and service information of the corresponding local plant 1 are read out. Pull out the first check sheet created based on the failure recovery manual, and pursue the cause based on the operation data such as voltage, current, oil pressure, temperature, etc. immediately before the corresponding failure location based on the check sheet, and recover it. Make repairs. (S17)

If the cause of the failure or the repair cannot be performed with the first check sheet, the second and third check sheets are transferred from the Internet 2 to the WWW server device 5 of the central management base 5.
Continue to find the faulty part and repair it while pulling it out from Step 2.

The service technician 7 who has completed the restoring work can read the work file of the portable terminal 9 or the W of the local plant 1.
The work file on the service base 3 side is read from the WW server device 22, and the work end time, work time, replacement parts, and the like are written, and then are sent to the Internet 2. (S19)

The work file is sent via the Internet 2 to the service information management database of the WWW server device 52 on the integrated management base 5 side, and learns and checks a failure recovery manual and stores and displays data as a failure case. In the WWW server device 32 on the service base 3 side, data such as operation time, failure history, and maintenance history are stored in the service information management database.

Further, as shown in FIG. 9, the personal computer at the service base 3 periodically searches the work file created when the alarm is generated (S20), and searches for any completed work. If there is a work file (S21), based on the billing software, the work time, replacement part price, and travel expenses are automatically accumulated based on the contents, and a bill is created based on the accumulated data. . (S
22)

The created bill is forwarded to the registered manager via the Internet 2 based on electronic approval software, and the manager confirms the transferred mail content and makes payment. (S23) The settled bill is sent to the customer of the local plant 1 automatically or in a rotating manner by mail. (S24) The customer confirms the received mail and replies to the mail.
(S25)

[0065]

As described above, according to the present invention, the maintenance of one or more local plants having a power generation facility or other local plant and a service person dispatched to the site when the local plant fails is managed. Service bases
In addition to the technical information of the respective local plants, maintenance and abnormal recovery systems for various plants such as power plants, chemical plants and other land plants and ships and marine boring plants, etc. In this case, the maintenance and abnormal recovery repair of each of the local plants can be efficiently performed using the Internet or a mobile terminal having a mail transmission / reception function.

Further, at the service base and the general management base, the operation status of each local plant can be grasped moment by moment. In addition, the maintenance information indicating the operation status and the maintenance status can be referred to not only from the maintenance department, but also from the manufacturing department's manufacturing department and the development department's computer, whereby the maintenance information is fed back to the manufacturing and development department. can do.

[Brief description of the drawings]

FIG. 1 is an overall block diagram of a system configuration of a maintenance and abnormality recovery system for various plants using the Internet according to an embodiment of the present invention.

FIG. 2 is a detailed block diagram showing a system configuration of a local plant (an in-house power generation plant).

FIG. 3 is an operation diagram showing a sampling time of past operation data that goes back from the time when an alarm signal is generated.

FIG. 4 is a detailed block diagram showing a system configuration of a service base.

FIG. 5 shows a primary alert message and a prior art alert message for a pager displayed on a serviceman's mobile terminal.

FIG. 6 is a detailed block diagram showing a system configuration of a central management base.

FIG. 7 is a flowchart showing an operation procedure on the local plant side.

FIG. 8 is a flowchart showing an operation procedure of a serviceman response on the service base side.

FIG. 9 is a flowchart showing a bill issuing operation procedure on the service base side.

FIG. 10 is an overall block diagram of a system configuration of a maintenance and abnormality recovery system for various plants according to the related art.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 In-house power generation plant 2 Internet 3 Service base 5 General control base 6 Mobile terminal wireless line 7 Serviceman 8 Base station 9 Wireless portable terminal 10 Power generation equipment (11 engine, 12 generator, 13 breaker, 14
Detector) 20 Plant monitoring device (21 personal computer, 22 WWW server device for plant monitoring) 30 Monitoring device provided at service base (31 personal computer, 32 WWW server device) 50 Monitoring device in general management base (51 personal computer, 52 WWW) Server device)

Continued on the front page F-term (reference)

Claims (12)

[Claims] An on-site plant having a power generation facility and other driving equipment and a monitoring device for monitoring operation data of the driving equipment, managing maintenance of the one or more on-site plants, and In the maintenance and abnormal recovery system of various plants consisting of a service base for dispatching servicemen who perform repairs and repairs, and technical information of the respective local plants, as well as a general management base where service information for failure recovery is managed. The local plant, the service base and the general management base are connected to the Internet or an intranet network via a public line or a dedicated line by respective WWW server devices, and the service person is provided with a mobile terminal,
A maintenance and abnormality recovery system for various plants, wherein a mobile terminal having a mail function such as a PHS is provided, and the mobile terminal and a service base are connected to an Internet network via a mobile wireless network. 2. When a failure occurs on the local plant side, the service base or the local plant side transmits an alarm message to the mobile terminals of the corresponding serviceman group via the Internet to urge the serviceman to respond by mail. The maintenance and abnormality recovery system for various plants according to claim 1, wherein: 3. The maintenance and abnormality recovery system for various plants according to claim 2, wherein detailed alarm information is transferred to a service person who can respond based on the mail reply via the Internet. 4. A service file is created on the service base side based on the alarm message, and upon receiving a reply mail from the service person, the work file containing necessary information is transmitted to the service person in charge via the Internet. 3. The maintenance and abnormality recovery system for various plants according to claim 2, wherein the maintenance is performed. 5. A service technician, who has completed a restoration work of a local plant, writes necessary information such as work time and replacement parts in the work file and transmits the work file to the Internet. Maintenance and abnormal recovery system for various plants. 6. The service base side searches for the existence of a work file in which the restoration work of the local plant has been completed, and if there is a work file in which the work has been completed, a bill is created from the contents thereof. The maintenance and abnormality recovery system for various plants according to claim 1. 7. The method according to claim 6, wherein the created invoice is transferred to a registered administrator via the Internet by e-mail, and the administrator confirms the contents of the transmitted e-mail and makes a payment. Maintenance and abnormal recovery system for various plants described. 8. When a failure occurs in a monitoring device on the local plant side, an alarm message and operation data up to a predetermined time before the time of occurrence of the failure are transmitted to a service base or a general management base via the Internet together with an alarm message. The maintenance and abnormality recovery system for various plants according to claim 1, wherein the transmission is performed to a monitoring device. 9. The maintenance and abnormality recovery system for various plants according to claim 1, wherein sampling intervals of the operation data up to a predetermined time before the failure occurrence time point are varied. 10. The method according to claim 1, wherein a sampling interval of the data immediately before the occurrence of the failure is made dense, and the data is used for trouble analysis of an electric system and a hydraulic system. The maintenance and abnormality recovery system for various plants according to claim 9. 11. A monitoring device at the central management base is provided with a homepage that is open to the public by access from the Internet, while a local plant or service base has an access right to the homepage, and the homepage is accessed via the Internet. 2. The maintenance and abnormality recovery system for various plants according to claim 1, further comprising a browser for browsing published technology / service information. 12. The general management base has a database for registering technical service information of the local plant.
2. The maintenance and abnormality of various plants according to claim 1, wherein the repair / recovery is performed while the response data of the service person in charge together with the corresponding warning message and the detailed warning information of the local plant are exchanged with the database via the Internet. Recovery system.