JP2007241598A - On-site maintenance support system and on-site maintenance support method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an on-site maintenance support system capable of setting the inspection importance of equipment or the like appropriately by using an easy input means and realizing the high safety and low operation maintenance cost of a plant by reading past maintenance information as needed. <P>SOLUTION: Even for the equipment installed off an inspection route, by adding an IC tag to which abnormality information noticed in the inspection is input as needed to the equipment, the inspection route is appropriately optimized. Further, when the abnormality of the equipment is confirmed, if a coping method for coping with the abnormality is unclear, by input of a noticed item relating to the abnormality through portable terminal equipment for inspection work provided with a variable key area where the terms of a high cumulative using frequency among the terms used in the inspection are appropriately selected and displayed as input keys in an input part, the optimum coping method for coping with the abnormality is obtained from a maintenance information DB storing past maintenance history information for faults. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  According to the present invention, when an on-site maintenance of a plant is performed, the importance of inspection of equipment is appropriately set by using an IC tag, and thereby an optimal inspection route is determined. In addition, a terminology used at the time of inspection is appropriately selected, and a portable terminal device for inspection work having a variable key area displayed as an input key in the input unit is appropriately selected. In addition, past maintenance information that is made into a shared database as necessary is read by the inspector via the mobile terminal device, so that the skill and work efficiency of the inspector are improved, and the accompanying high safety of the plant. The present invention relates to a field maintenance support system and a field maintenance support method for realizing low operation / maintenance costs.

In recent years, there is a strong demand for reduction of plant operation and maintenance costs. For this reason, there is a problem of a decrease in skills due to a shortage of operators / maintenance personnel and lack of technical transfer due to the reduction of the cost, and the premise that safe and appropriate operation can be done without relying on manuals is being broken. .

Based on this situation, “risk-based maintenance methods” are being introduced for plant maintenance and management. “Risk-based maintenance method” is a method that prioritizes the importance of maintenance over the frequency and severity of failures in the plant, and implements maintenance with priority from the highest importance. . Although this method matches the needs of recent plant maintenance cost reduction, for example, equipment that needs immediate maintenance has been dropped from the maintenance list of the plant, and the risk has been completely eliminated. There is a problem that it is not a method.

  For this reason, when implementing the “risk-based maintenance method”, the skills of the inspector should be substantially improved by supporting daily inspections that are fundamental to improving plant safety with IT technology. is important.

  With regard to the above-described technology, the “field data collection support device” disclosed in Japanese Patent Publication No. 277161 is carried at the time of plant inspection work, and data necessary for the inspection work at the site is displayed on the display means in accordance with a request from the input means. In the field data collection support device that displays and inspects inspection equipment and collects inspection data of multiple inspection equipment via this input means, inspection equipment information representing a plurality of inspection equipment included in the inspection course, for each inspection equipment Inspection equipment information database that stores the inspection item information that represents each inspection item and the respective management values for each inspection item in advance, and when performing inspection work on site, multiple inspection equipment included in the inspection course can be inspected arbitrarily. Inspecting equipment list display function to display a list so that equipment can be selected, and inspection equipment selected from multiple Inspection information display management that displays the information stored in the inspection equipment information database in accordance with a request from the input means, with a function to display a list of inspection items so that a plurality of inspection items can be arbitrarily selected. And the inspection data related to the inspection item displayed on the display means by the inspection information display management means are input via the input means, and the management value for the inspection item stored in the inspection data and inspection equipment information database is input. A field data collection support device has been proposed that includes inspection data input management means for determining whether or not inspection data is normal or abnormal by comparing with the above, and collecting and storing the determination result and inspection data as history data.

Japanese Patent Publication No. 2772161

  An object of the present invention is to perform an inspection work in which a variable key area displayed as an input key is selected as an input key by appropriately selecting a frequently used term among terms used at the time of inspection at a plant site maintenance. The inspection importance of the equipment is set as appropriate by the mobile terminal equipment for use, and past maintenance information in the shared database is read by the inspector as necessary, so that the skill and work efficiency of the inspector can be improved. The object is to provide an on-site maintenance support system and an on-site maintenance support method for realizing improvement, high safety of the plant, and low operation and maintenance costs.

  In the following, means for solving the problem will be described using reference numerals with parentheses used in [Best Mode for Carrying Out the Invention]. These symbols are added in order to clarify the correspondence between the description of [Claims] and the description of the best mode for carrying out the invention. ] Should not be used for interpretation of the technical scope of the invention described in the above.

  The on-site maintenance support system (10) of the present invention is carried at the time of on-site inspection, and is equipped with an input unit (31) and a display unit (32). And an on-site maintenance support device (20) having an in-plant maintenance information database (200c) with maintenance history information, and the input unit of the portable terminal device displays an arbitrary term used at the time of inspection as an input key. If a variable key area (31b) is provided, and an abnormality is found in the inspection route and equipment installed outside the inspection route during field inspection, and the coping method corresponding to the abnormality is unknown, the mobile terminal device inputs from the input unit The notice information regarding the detected abnormality is transmitted to the field maintenance support device, and the field maintenance support device receives the notice information and the maintenance information in the factory based on the reception of the notice information. Find the Action that corresponds to the abnormality by collating the maintenance history information database, and returns the search results by the search to the mobile terminal device, portable terminal device displays on the display unit the search results.

  In the field maintenance support system (10) of the present invention, the input unit (31) of the mobile terminal device (30) further includes a handwriting input area (31c) with a touch pen and a finger, and a fixed input key area (31a). Have

  In the field maintenance support system (10) of the present invention, a predetermined number of arbitrary terms used at the time of inspection are selected and set in advance in the variable key area (31b) according to the cumulative usage frequency. It is displayed in the variable key area based on the key arrangement rule.

  In the field maintenance support system (10) of the present invention, as for the cumulative use frequency, arbitrary terms used at the time of inspection are respectively input to the variable key area (31b) and the handwriting input area (31c) before the field inspection. Cumulative number of times.

  In the field maintenance support system (10) of the present invention, before the field inspection, the identification ID of the inspector performing the field inspection is input to the input unit (31) of the portable terminal device (30), and the variable key area ( In 31b), a predetermined number of arbitrary terms used at the time of inspection input by the inspector corresponding to the identification ID are selected according to the cumulative use frequency, and a predetermined key arrangement rule is set. Is displayed in the variable key area.

  In addition, the field maintenance support method of the present invention includes an input unit (31) provided with a variable key area (31b) for displaying any term used as an input key, which is carried during field inspection and used during inspection. A portable terminal device (30) including a unit (32), and an on-site maintenance support device (20) having an in-plant maintenance information database (200c) including maintenance history information for failures that have occurred in the field so far. In the field maintenance support system (10), when a site inspection is performed, if an abnormality is found in the inspection route and a device installed outside the inspection route and a countermeasure to deal with the abnormality is unknown, the mobile terminal The device performs a notice item transmission step for transmitting notice item information regarding an abnormality input from the input unit to the field maintenance support device, and a notice item transmission step. Based on the transmitted notice, the action search step for searching for a countermeasure corresponding to the abnormality by comparing the notice information with the maintenance history information in the maintenance information database in the factory, and a search by the countermeasure search step A search result returning step for returning the result to the portable terminal device; and a search result displaying step for displaying the search result returned by the search result returning step on the display unit.

  Further, in the field maintenance support method of the present invention, before the notice item transmitting step, a selection step of selecting a predetermined number of arbitrary terms used in the inspection in the variable key area (31b) according to the cumulative usage frequency. And a display step of arranging and displaying arbitrary terms used in the inspection selected in the selection step based on a preset key arrangement rule in the variable key area.

  In the field maintenance support method of the present invention, the cumulative use frequency is the cumulative number of times that any term used at the time of inspection is input to the variable key area (31b) and the handwriting input area (31c) before the field inspection. It is.

  In the field maintenance support method of the present invention, an identification ID input step for inputting an identification ID of an inspector who performs a field inspection to the input unit (31) of the portable terminal device (30) before the field inspection, and an identification ID A selection step for each identification ID that selects a predetermined number of terms to be used at the time of inspection that have been input by the inspector corresponding to the identification ID input at the input step according to the cumulative use frequency, and is set in advance. A discriminating ID-by-identification ID step for displaying in the variable key area an arbitrary term used at the time of inspection selected by the discriminating ID-by-identification step based on the specified key arrangement rule.

  The field maintenance support program (26a, 35a) of the present invention can be read by a computer, and realizes the field maintenance support method according to at least one of claims 6 to 9.

  According to the present invention, for on-site maintenance of a plant, terms having a high cumulative usage frequency are appropriately selected among the terms used at the time of inspection, and for inspection work provided with a variable key area displayed as an input key in the input unit. With the mobile terminal device, the inspection importance of the device is set as appropriate, and past maintenance information that is made into a shared database is read by the inspector as necessary, thereby improving the skill and work efficiency of the inspector, Accordingly, it is possible to provide a field maintenance support system and a field maintenance support method for realizing high plant safety and low operation / maintenance costs.

  The best mode for carrying out the field maintenance support system according to the present invention will be described below with reference to the accompanying drawings.

  The on-site maintenance support system and on-site maintenance support method of the present invention are added to equipment recognized as abnormal at the time of inspection, including equipment installed other than the normal inspection route at the time of periodic inspection of the plant or the like, or The inspection route in the next inspection is appropriately optimized based on the normal inspection route by inputting the inspection importance to the IC tag newly attached to the device in which the abnormality is recognized. Furthermore, when an abnormality is confirmed, if the corrective action corresponding to the abnormality is unknown, the maintenance history information on past failures is entered by inputting notice information on the abnormality to the mobile terminal device owned by the inspector. Can be obtained, and an optimum coping method corresponding to the abnormality can be obtained.

  The mobile terminal device provided in the on-site maintenance support system of the present invention includes (1) a variable key area that is appropriately selected from terms used at the time of inspection and displayed as an input key; (2) An input unit having a fixed input key area and (3) a handwriting input area by a touch pen or the like is provided. This makes it possible to input necessary items extremely easily and accurately even for inspectors who are not familiar with the use of PCs and the like, and to improve workability in field inspections.

  In addition, improvement of inspector skills and equalization of inspection skills, as well as high plant safety and low operating / maintenance costs associated therewith are realized.

(Embodiment)
A schematic configuration of a field maintenance support system according to an embodiment of the present invention is shown in FIG.

  The field maintenance support system 10 of the present embodiment is connected to a portable terminal device 30 that is carried at the time of field inspection and a factory maintenance information database that includes maintenance history information for failures that have occurred in the field so far. On-site maintenance support device 20, information can be rewritten, IC tag 40 added to on-site equipment, and wireless that is attached to any equipment installed on-site and wirelessly transmits operation information of the equipment And a sensor 50.

  FIG. 2A shows a schematic configuration of the mobile terminal device 30. The mobile terminal device 30 is based on an input unit 31 for inputting instructions and information from an inspector at the site, information transmitted from the IC tag 40 and the wireless sensor 50, or an instruction from the input unit 31. A communication unit 33 and an antenna unit 33a for performing wireless communication between the display unit 32 that displays information transmitted from the maintenance support device 20, and the IC tag 40, the wireless sensor 50, and the field maintenance support device 20. And an arithmetic processing unit 34 and a storage unit 35. The storage unit 35 stores a field maintenance program 35a for operating the field maintenance support system in advance. The input unit 31, the display unit 32, the communication unit 33, the arithmetic processing unit 34, and the storage unit 35 are each connected by a bus line 36.

  FIG. 2B shows a schematic form of a panel in which the input unit 31 and the display unit 32 of the mobile terminal device 30 are arranged. The input unit 31 includes a variable key area (31b) formed by a liquid crystal panel, a fixed input key area (31a), and a handwritten character input area (31c) that can be input with a touch pen, a finger, or the like. Yes. In particular, in the variable key area, inspection-related terms and the like input by the time of the inspection work are sequentially displayed in a prescribed number according to the cumulative use frequency input in the variable key area and the handwritten character input area, for example. Furthermore, they are arranged on the area based on a preset key arrangement rule. In addition, by inputting the identification ID of the inspector to the input unit before the inspection, the inspection-related terms having a high cumulative frequency input by the corresponding inspector up to the time of the inspection are displayed on the display unit in the same manner as described above. It is also possible.

  In FIG. 3, the schematic block diagram of the field maintenance assistance apparatus 20 is shown. The field maintenance support device 20 is arranged at a specified place inside the factory 1 where the field is located. The on-site maintenance support device 20 is similarly necessary for the management of the database and the like, the input unit 21 for inputting instructions and information, and the display unit 23 for displaying the processing results based on the instructions from the input unit 21. Accordingly, an output unit 22 that outputs a processing result, a communication unit 24 and an antenna unit 24a for performing wireless communication with the mobile terminal device 30, an arithmetic processing unit 25, and a storage unit 26 are provided. . The storage unit 35 stores a field maintenance support program 26a for operating the field maintenance support system in advance. The input unit 21, the display unit 23, the communication unit 24, the output unit 22, the arithmetic processing unit 25, and the storage unit 26 are connected by a bus line 27. The field maintenance support device 20 is connected to a network database management device 200 installed in the same factory via a network 100. The in-factory database management apparatus 200 includes an operation information DB 200a that stores trend data such as vibrations and temperatures of various devices in the factory, an operation information DB 200b that includes operation manuals and maintenance manuals of various devices in the factory, Stored are a maintenance information DB 200c including maintenance history information and an operation log for failure of various devices in the factory, and an image information DB 200d for storing image data indicating the failure status and maintenance status of various devices in the factory. Yes. In FIG. 3, the in-factory database management device 200 is shown as being installed as a separate device from the on-site maintenance support device 20, but the in-factory database management device 200 is placed inside the on-site maintenance support device 20. It is good also as a structure including.

  The in-factory database management apparatus 200 arranged in the factory 1 is connected to the database management apparatus 300 of the remote monitoring center 2 installed outside the factory 1 via the network 100. The database management apparatus 300 includes an operation information DB 300a that accumulates trend data such as vibrations and temperatures of various devices in a plurality of factories transmitted from a plurality of factories including the factory 1, and an operation of various devices in the plurality of factories. Operational information DB 300b with manuals, maintenance manuals, etc., maintenance information DB 300c including maintenance history information and operation diaries for failure of various devices in multiple factories, and failure status and maintenance status of various devices in multiple factories An image information DB 300d for accumulating image data is stored, and the field maintenance support device 20 can access the database management device 300 as necessary to obtain necessary information.

  In particular, it is stored in the image information database 200d included in the in-plant database management apparatus 200 of the field maintenance support system 10 according to the present embodiment and the image information database 300d included in the database management apparatus 300 of the remote monitoring center 2. The image information has a form in which character information is superimposed on the image information. FIG. 4 shows a model in which character information is superimposed on the image information. When a failure is found in various devices in the factory 1, the image data of the failure portion is acquired by the imaging device 60 such as a camera. Then, the character superimposing device 61 superimposes the image data and the character information related to the failure input from the input device 63. The image data 64 on which the character information is superimposed is transmitted to the image information DB 200d by the image data management device 62 and stored.

  In the field maintenance support system 10 of the present invention, as will be described later, when a failure is discovered during an inspection at the site, and an inspector makes an inquiry about the failure to the field maintenance support device 20, the field maintenance support device 20 In addition to the maintenance information stored in the maintenance information DB 200c corresponding to the failure, the image data 64 stored in the image information DB 200d can be returned. The inspector can also visually determine the cause of the failure by taking a look at the image data 64 on which the character information is superimposed, and take appropriate measures.

(Operational principle of the embodiment)
Hereinafter, the operation principle in the field maintenance support system 10 according to the present embodiment will be described with reference to FIG. 5A.

  First, when an on-site inspection of the factory 1 is started by an inspector, the portable terminal device 30 possessed by the inspector and the on-site maintenance support device 20 installed in the factory are activated. Thereby, the field maintenance support system 10 whole starts. When the mobile terminal device 30 is activated, the arithmetic processing unit 34 reads and executes the on-site maintenance program 35a stored in the storage unit 35. When the field maintenance support device 20 is activated, the arithmetic processing unit 25 reads and executes the field maintenance support program 26a stored in the storage unit 26. Thereby, in the portable terminal device 30 possessed by the inspector, transmission / reception settings are made among the IC tag 40, the wireless sensor 50, and the field maintenance support device 20 added to the device to be inspected in the factory 1 ( Step S01), reception of signals from the IC tag 40 and the wireless sensor 50, transmission of signals to the IC tag 40, and transmission / reception of signals to / from the mobile terminal device 30 are possible.

  In the present embodiment, the IC tag 40 is added to equipment in the factory to be inspected. The IC tag 40 is input with IC tag information of the inspection importance level for the device to which the IC tag is attached and setting information as to whether or not alert information is transmitted so as to inspect the device. . The IC tag information is updated as appropriate by the inspector. The wireless sensor 50 does not need to constantly monitor the operation state, but is attached to a device that needs to be monitored based on a specific rule. The wireless sensor 50 can change the target device as appropriate, and the cost required for measurement is low. For this reason, the cost reduction required for the configuration, operation, and maintenance of the present embodiment is realized by using it as a configuration requirement of the present embodiment.

During inspection of the factory 1 by an inspector, when an abnormality is found in the equipment installed outside the inspection route and the inspection route, or from the IC tag 40 attached to the equipment installed outside the inspection route and the inspection route When the alert information is received by the mobile terminal device 30 (step S02), if the abnormality can be dealt with on the spot, the coping process is immediately implemented (step S06). However, if the handling process is unknown to the inspector, “notice item information” regarding the abnormality is input to the input unit 31 of the mobile terminal device 30 (step S03). Here, the “aware matter information” is information including, as a keyword, a language indicating a physical operation state recognized as an abnormality of a device in which an abnormality is found or a device to which an IC tag 40 that transmits alert information is added. It is.

  As described above, the input unit 31 of the mobile terminal device 30 according to the present embodiment is formed of a liquid crystal panel or the like, and automatically displays and arranges input keys indicating terms that are frequently used at the time of inspection. It has a variable key area (31b), a fixed input key area (31a), and a handwritten character input area (31c) that can be input with a touch pen or a finger. First, when the mobile terminal device 30 is activated, in the variable key area, inspection-related terms and the like input up to the time of the inspection work are sequentially displayed in the variable key area in a prescribed number according to the cumulative usage frequency. Furthermore, they are arranged on the area based on a preset key arrangement rule.

  In the embodiment of the present invention, the following embodiments may be adopted in addition to the above embodiments. That is, as shown in the operation flow of FIG. 5B, by inputting the identification ID of the inspector to the input unit before the inspection (step S100), for each inspector corresponding to the identification ID, Is checked for the cumulative ranking of inspection-related terms that have been input so far (step S101). Then, based on the result of step S101, the inspection-related terms as shown in FIG. 2B are sequentially displayed in the variation key area in descending order of the cumulative usage frequency (step S102). Thereby, inspection input is performed from the input unit including the variable key area (31b), the fixed key area (31a), and the handwritten character recognition area (31c) that can be input with a touch pen or a finger ( Step S103). When all the inspection operations are completed (step S104), a series of “aware matter information” input in step S03 is completed.

“Awareness information” input to the mobile terminal device 30 is transmitted to the field maintenance support apparatus 20 via the communication unit 33 and the antenna unit 33a. The field maintenance support device 20 receives “awareness information” via the antenna unit 24 a and the communication unit 24. Based on this reception, the “aware matter information” is collated with the maintenance history information in the maintenance information DB 200 c stored in the in-factory maintenance information database 200. In the verification, a maintenance history is recorded using a language indicating a physical operation state that is recognized as an abnormality of a device with an IC tag to which an abnormality is included in “Awareness information” or that transmits alert information as a keyword. An abnormality equivalent to the abnormality included in the information is collated, and a maintenance method applied to the abnormality is searched. When maintenance information corresponding to the abnormality is not found in the maintenance information DB 200c stored in the in-factory maintenance information database 200, the maintenance history information in the maintenance information DB 300c stored in the remote monitoring center 2 is further checked. Done. And if the coping method corresponding to the said abnormality is searched, it will respond to the said abnormality based on the said keyword also from image information DB200d, operation information DB200a, and operation information DB200b which are stored in the database management apparatus 200 in a factory. Related information is retrieved and derived (step S04). FIG. 6 shows a description example of an operation diary in which maintenance items are noted in the maintenance information DB 200c and noticed by the inspector at that time, and how to deal with them, etc. Yes. The degree of importance of the abnormality of the target device described in this diary is an example of the maintenance history information. The inspection importance level input to the IC tag attached to the target device and the target device are inspected. In this way, the setting information indicating whether or not to transmit the alert information is used. FIG. 7 also shows which information stored in the other DB is related to the abnormality in the driving diary. When the inspector receives the notification of the search end on the display unit 32 of the portable terminal device 30, the inspector presses the display key set in the input unit 31 and relates to the abnormality shown in FIG. Maintenance history information necessary to deal with the abnormality, such as an operation log, can be displayed on the display unit 32 (step S05). Based on the maintenance history information, the inspector performs an optimum process for dealing with the abnormality (step S06).

After coping with the abnormality, the inspector inputs the content of the abnormality and a coping method thereof from the input unit 31 of the mobile terminal device 30 in order to make the information of the abnormality and the coping method common. The data is transmitted to the database of the factory database management apparatus 200 (step S07). Also in the input work in step S07, as described above, the inspector uses the variable key area (31b), the fixed key area (31a) provided in the input unit 31 of the mobile terminal device 30, the touch pen, the finger, and the like. A handwritten character recognition area (31c) that can be input can be used. In addition, by inputting the ID corresponding to the inspector to the input unit, the contents of the abnormality and the countermeasure method and the like are input according to the input form of steps S100 to S104 shown in FIG. 5B. You can also.

  Further, the inspector adds a warning to the device in which the abnormality is recognized from the input unit 31 of the mobile terminal device 30 in the same manner as described above based on the handling method and the handling result corresponding to the abnormality. Information indicating the importance of inspection for the next inspection and the necessity of sending alert information is input to the IC tag 40 that transmits information. Thereby, the information of the IC tag 40 is updated. When the IC tag 40 is not added to the device corresponding to the abnormality and alert information, the new IC tag 40 is newly added to the device, and the new IC tag 40 is added to the input unit 31 of the mobile terminal device 30. The registration number, the inspection importance for the next inspection corresponding to the device to which the new IC tag is added, and information indicating whether or not the alerting information needs to be sent are input (step S08).

On the other hand, when an inspector approaches a device to which the wireless sensor 50 is attached during patrol, the measured value data of the device is automatically received by the portable terminal device 30 possessed by the inspector. The received measurement value data is displayed on the display unit 32 of the portable terminal device 30 and transmitted to the field maintenance support device 20 (step S10). The inspector confirms whether or not there is an abnormality in the operation of the device based on the measured value displayed on the display unit 32 (step S11). In this confirmation, if an abnormality has been confirmed, but the coping method corresponding to the abnormality is unknown, the “notice item information” shown in step S03 already described is input, and the coping method for coping with the abnormality However, the site maintenance support device 20 is inquired through the portable terminal device 30, and the steps after step S04 are executed.

  When the inspector circulates the inspection route and the on-site inspection is completed, the on-site maintenance support device 20 is described in the manual based on the inspection importance of each IC tag 40 transmitted from the mobile terminal device 30. The next inspection route based on the basic inspection route is created, and the inspection route information in the factory operation information database 200b is updated (step S09).

As explained above, the field maintenance support system 10 of the present invention
(1) The inspector recognizes an abnormality of the device during the patrol inspection of the plant, and inputs “aware matter information” to the portable terminal device 30 when the coping method for the abnormality is unknown. Based on the “Awareness information”, search the maintenance information DB 200c for data corresponding to past similar models and similar awareness information, and display the operation data, maintenance method and coping method at that time on the mobile terminal device 30. To do. As a result, even inexperienced inspectors can take appropriate measures. Further, more accurate information can be obtained by utilizing the plant maintenance information DB 300c in another factory. In addition, when the notice information is input with this system, the same notice and accidents in the past are immediately retrieved and displayed from the maintenance information DB 200c, so it is possible to recognize the inspection items requiring attention for inspection and maintenance. And prevent similar accidents. In addition, since the portable terminal device used for the on-site inspection has the above-described input form, it is possible to input necessary items very easily even for on-site workers who are not familiar with the use of PCs and the like. It becomes possible, and the workability on the site is improved.

(2) Further, in the present embodiment, “noticeable matter information” is stored in the database of the on-site maintenance support device 20 from the portable terminal device 30 possessed by the inspector and is used as data shared by all the inspectors. Therefore, by browsing it, it is possible to take an appropriate response even when an abnormal state that the user has not dealt with before is found. Then, by electronically inputting the corresponding method and result at that time to the mobile terminal device 30, the shared information in the database can be increased. In particular, the operation method in the event of an abnormality may be misrecognized as an individual or the entire plant, but browse and use other inspectors' coping methods and other plant's inspector's inspection and coping methods. As a result, it is possible to improve inspection skills and equalize skills not only within the factory but also between the factories. It works effectively to improve the skills of young inspectors.

(3) Further, in the present embodiment, in the inspection according to the inspection manual, the inspection is performed only at a time interval determined by a predetermined route, and the importance thereof is changed only when the inspection manual is revised. In the information transmission function using the IC tag 40 according to this embodiment, the inspector approaches the IC tag 40, automatically reads the IC tag information input by the inspector in the past, and the importance of the information is high ( The importance can be input by the inspector in the past), it can be inspected again and the inspection result can be input, and the inspection route can be optimized at the level of the inspector who knows the situation in detail. As a result, appropriate inspection and maintenance are carried out in the plant to be managed, and the safety of the plant is improved.

(4) Moreover, in this embodiment, in order to grasp the operation status of important equipment, the sensor attached to the equipment is connected to the central operation room that manages the equipment in the factory by wired wiring. Although it is constantly monitored, equipment such as boiler feed pumps and secondary air fans are only equipped with simple on-site instruments such as current values. Yes. In the present embodiment, in order to reduce the inspection cost, a small and inexpensive wireless sensor 50 is attached in place of the field instrument, and the inspector with the portable terminal device 30 automatically vibrates, temperature, and sound during the patrol. By collecting data such as the above and automatically analyzing the abnormality of the equipment, the inspection costs are reduced by the inspector and assistance for early detection of abnormal signs. And reduction of plant operation and maintenance costs is realized.

(5) In operation / maintenance of a combustion plant or the like, image data such as images from an infrared camera that images the inside of the furnace is useful for operation control. It is also widely used for monitoring equipment in plants. Furthermore, it is also useful as a judgment material for the state of equipment and deterioration in maintenance work. However, image data has a large amount of data, and a large amount of accumulated image data is difficult to manage, and it is difficult to appropriately extract necessary image data from the image data. In the image data stored in the image information DB 200d of the present embodiment, it is possible to refer to character information superimposed on the image data. Thereby, it is possible to easily organize image data and search for necessary data during plant operation, monitoring, and maintenance. In this embodiment, character data such as a date is superimposed on image data acquired by an imaging device such as a camera, and a process value and other information related to the superimposed character data are included. From the information added to the image data, it becomes easy to organize and search the image data, thereby improving the maintainability of the plant.

It is a figure showing a schematic structure of a field maintenance support system concerning an embodiment of the invention. It is a figure which shows schematic structure of the portable terminal device with which the field maintenance assistance system concerning embodiment of this invention is provided. It is a figure which shows schematic structure of the portable terminal device (input / output panel part) with which the field maintenance support system concerning embodiment of this invention is provided. It is a figure showing a schematic structure of a field maintenance support device with which a field maintenance support system concerning an embodiment of the invention is provided. It is a figure which shows the model for superimposing character information on the image information stored in the image information database of a field maintenance assistance apparatus. It is a figure which shows the operation | movement flow of the field maintenance assistance system concerning embodiment of this invention. It is a figure which shows the operation | movement flow of the portable terminal device with which the field maintenance assistance system concerning embodiment of this invention is provided. It is a figure which shows the example of a display of the maintenance information stored in maintenance information DB of the field maintenance assistance system concerning embodiment of this invention. It is a figure which shows the example of a display of the maintenance information stored in maintenance information DB of the field maintenance assistance system concerning embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Factory 2 ... Remote monitoring center 10 ... Site maintenance support system 20 ... Site maintenance support apparatus 21, 31 ... Input part 23, 32 ... Display part 22 ... Output part 24, 33 ... Communication part 24a, 33a ... Antenna part 25, 34 ... arithmetic processing unit 26, 35 ... storage unit 26a ... field maintenance support program 35a ... field maintenance support program 27, 36 ... bus line 30 ... portable terminal device 31a ... fixed key area 31b ... variable key area 31c ... handwritten character recognition area DESCRIPTION OF SYMBOLS 40 ... IC tag 50 ... Wireless sensor 60 ... Imaging device 61, such as a camera ... Character superimposing device 62 ... Image data management device 63 ... Input device 64 ... Image data 100 ... Network 200 ... In-plant database management device 200a, 300a ... Driving information DB
200b, 300b ... operation information DB
200c, 300c ... Maintenance information DB
200d, 300d ... Image information DB
300 ... Database management device

Claims (10)

A portable terminal device that is carried in the field inspection and includes an input unit and a display unit;
An on-site maintenance support device having an in-plant maintenance information database with maintenance history information for failures that have occurred in the field so far,
The input unit of the mobile terminal device includes a variable key area for displaying any term used at the time of inspection as an input key,
At the time of the on-site inspection, if an abnormality is found in the inspection route and devices installed other than the inspection route and the coping method corresponding to the abnormality is unknown, the mobile terminal device receives the abnormality input from the input unit. Send notice information on the site maintenance support device,
The field maintenance support device searches for a coping method corresponding to the abnormality by comparing the notice item information with the maintenance history information in the maintenance information database in the factory based on the reception of the notice item information, A site maintenance support system that returns a search result by a search to the mobile terminal device, and the mobile terminal device displays the search result on the display unit. In the field maintenance support system according to claim 1,
The field maintenance support system, wherein the input unit of the mobile terminal device further includes a handwriting input area using a touch pen and a finger, and a fixed input key area. In the field maintenance support system according to claim 1 or 2,
In the variable key area, a predetermined number of arbitrary terms used at the time of the inspection are selected according to the cumulative usage frequency, and further, the site displayed in the variable key area based on a preset key arrangement rule Maintenance support system. In the field maintenance support system according to claim 3,
The cumulative maintenance frequency is an on-site maintenance support system in which an arbitrary term used at the time of inspection is the cumulative number of times each term input to the variable key area and the handwriting input area before the on-site inspection. In the field maintenance support system according to at least one of claims 1 to 4,
Before the on-site inspection, an identification ID of an inspector who performs the on-site inspection is input to the input unit of the mobile terminal device, and an inspector corresponding to the identification ID is in the variable key area until the inspection. An on-site maintenance support system in which a predetermined number of arbitrary terms used in the inspection that have been input to the screen are selected according to the cumulative use frequency, and further displayed in the variable key area based on a preset key arrangement rule . A portable terminal device that has an input unit and a display unit with a variable key area for displaying any term used as an input key that is carried during the site inspection and a failure that has occurred in the field to date A field maintenance support method in a field maintenance support system comprising a field maintenance support apparatus having a factory maintenance information database with maintenance history information for
At the time of the on-site inspection, if an abnormality is found in the inspection route and devices installed other than the inspection route and the coping method corresponding to the abnormality is unknown, the mobile terminal device receives the abnormality input from the input unit. Aware matter sending step for sending noticed matter information about the field maintenance support device,
A coping method for searching a coping method corresponding to the abnormality by comparing the cognitive matter information with the maintenance history information in the maintenance information database in the factory based on the notice matter transmitted by the notice matter transmission step. A search step;
A search result returning step of returning the search result of the coping method search step to the mobile terminal device;
A field maintenance support method comprising: a search result display step for displaying the search result returned by the search result return step on the display unit. In the field maintenance support method according to claim 6,
Prior to the notice item transmission step, a selection step of further selecting a predetermined number of arbitrary terms used in the inspection in the variable key area according to a cumulative usage frequency;
A field maintenance support method comprising: a display step of arranging and displaying arbitrary terms used in the inspection selected in the selection step based on a preset key arrangement rule in the variable key area. In the field maintenance support method according to claim 7,
The cumulative maintenance frequency is a field maintenance support method in which an arbitrary term used at the time of inspection is a cumulative number of times each term input to the variable key area and the handwriting input area before the field inspection. The field maintenance support method according to at least one of claims 6 to 8,
Before the on-site inspection, an identification ID input step for inputting an identification ID of an inspector who performs the on-site inspection on the input unit of the mobile terminal device;
For each identification ID, an arbitrary term used at the time of inspection, which has been input by the inspector corresponding to the identification ID input at the identification ID input step, until the time of the inspection is selected according to the cumulative use frequency. A selection step;
On-site maintenance support comprising: a display step by identification ID for displaying any term used in the inspection selected in the selection step by identification ID based on a preset key arrangement rule in the variable key area Method.   A computer-readable field maintenance support program for realizing the field maintenance support method according to at least one of claims 6 to 9.

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