JPH11353332A - Maintenance support system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it unnecessary to carry manuals or the like for the maintenance work of equipment at a job site and to reduce omission in the maintenance of the equipments. SOLUTION: This maintenance support system supports maintenance by transmitting maintenance information related to respective equipments at the job site from a server computer 101 to a portable information terminal 105 carried by a person in charge of maintenance when plural equipments to be maintained are distributed in a wide range. The server computer 101 is provided with a simultaneous maintenance information storing means for storing simultaneous maintenance information for other field equipments to be maintained simultaneously with the maintenance of a certain equipment and a transmitting processing means for transmitting the simultaneous maintenance information to the portable information terminal 105, which is provided with output processing means 112, 114 for displaying the simultaneous maintenance information received from the server computer 101.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a maintenance support system, and more particularly, to a system for supporting maintenance and inspection of equipment and facilities installed in a plurality of places distributed widely over several km to several tens km. The present invention relates to a maintenance support system.

[0002]

2. Description of the Related Art In the field of lifelines such as water supply, gas, electric power, etc., equipment and facilities to be subjected to maintenance and inspection are distributed and installed at a plurality of places over a wide range of several km to several tens km.

[0003] In such equipment and facilities, maintenance is performed by a maintenance technician who is familiar with the on-site equipment and goes to the site and inspects the equipment based on maintenance items. Here, the manuals describing the method at the time of maintenance and the information on the result of maintenance are generally not digitized and are not managed systematically.

[0004]

Therefore, if the maintenance person is not familiar with the maintenance of the on-site equipment, it is necessary to carry a maintenance method manual, a maintenance item list, etc., irrespective of having to travel a long distance. is there. Further, if an inspection omission at the time of maintenance of a certain device is found after leaving the inspection site, it is necessary to return to a remote site.

[0005] In addition, when inspecting on-site equipment at the time of a disaster such as an earthquake, unusual inspection items may occur. In this case, it may not be possible to cope with only the experience and manual information provided on site.

SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and a first object of the present invention is to eliminate the need to carry manuals for maintenance work on site devices and to reduce maintenance omissions of site devices. It is to provide a maintenance support system which can be used.

Another object of the present invention is to provide a maintenance support system capable of appropriately providing maintenance information in accordance with the position of a maintenance person. A third object is to provide a maintenance support system capable of preventing a case in which an omission of maintenance and inspection related to a site device to be maintained is found after leaving the inspection site. A fourth object is to provide a maintenance support system capable of appropriately determining a maintenance route of field devices scattered over a wide area and realizing efficient maintenance patrol.

[0008]

In order to solve the above-mentioned problems, a maintenance support system according to the first aspect of the present invention is provided in a case where a plurality of field devices to be maintained are widely distributed. The maintenance support is transmitted by transmitting maintenance information on the field devices from the server computer to the portable information terminal carried by the maintenance person.

Here, in the server computer, the simultaneous maintenance information storage means stores simultaneous maintenance information on other field devices that should be maintained at the same time when a certain field device is maintained. Then, the simultaneous processing information is transmitted to the portable information terminal by the transmission processing means.

On the other hand, in the portable information terminal receiving the simultaneous maintenance information from the server computer, the simultaneous processing information is displayed and output by the output processing means. Therefore, the maintenance technician does not have to carry around the maintenance manual, and can easily grasp the field devices to be maintained at the same time as the maintenance of certain field devices, thereby reducing maintenance omissions.

A maintenance support system according to a second aspect of the present invention is a portable support system which is carried by a maintenance technician when a plurality of on-site equipment to be maintained are widely distributed at a plurality of sites. The maintenance is supported by transmitting maintenance information on the field device from the server computer to the information terminal.

Here, the portable information terminal is provided with position information measuring means for measuring its own position, and the position information created by the position information measuring means is transmitted to the server computer by the position transmitting means.

On the other hand, based on the received position information, maintenance information used at the site where the portable information terminal is located is transmitted to the portable information terminal by the server computer. Therefore, the maintenance person can receive necessary maintenance information according to the position of the portable information terminal carried by the maintenance person, and can perform efficient and reliable maintenance inspection.

Next, a maintenance support system according to a third aspect of the present invention is a portable support system which is carried by a maintenance technician when a plurality of field devices to be maintained are widely distributed in a plurality of sites. The maintenance is supported by transmitting maintenance information on the field device from the server computer to the information terminal.

Here, the portable information terminal is provided with position information measuring means for measuring its own position, and the position information created by the position information measuring means is transmitted to the server computer by the position transmitting means.

[0016] Further, when a result of the maintenance of a site device is performed by the result reporting means of the portable information terminal, the result is transmitted to the server computer. on the other hand,
The server computer keeps track of the position of the portable information terminal based on the received position information. Here, when the portable information terminal is located at any site and the terminal leaves the site before the maintenance of the field device at the site is completed, a warning is notified from the server computer to the portable information terminal. It has become.

Upon receiving this warning from the server computer, the warning output means of the portable information terminal notifies the maintenance person that he / she has left the site with maintenance incomplete. Therefore, maintenance omissions of field devices can be further reduced. In addition, it is possible to prevent a situation in which a maintenance worker finds out a maintenance omission after leaving the inspection site and goes back to a distant site again.

Next, a maintenance support system according to a fourth aspect of the present invention is a portable support system which is carried by a maintenance technician when a plurality of field devices to be maintained are widely distributed at a plurality of sites. The maintenance is supported by transmitting maintenance information on the field device from the server computer to the information terminal.

Here, the portable information terminal is provided with position information measuring means for measuring its own position, and the position information created by this position information measuring means is transmitted to the server computer by the position transmitting means. ing.

On the other hand, in the server computer, the position of the portable information terminal is always grasped based on the received position information, and when the portable information terminal approaches any site, a warning is notified to the portable information terminal. .

Upon receiving a warning from the server computer,
The warning output means of the portable information terminal notifies that the user is approaching the site. Therefore, the maintenance person can be alerted at an appropriate timing.

A maintenance support system according to a fifth aspect of the present invention is a portable support system which is carried by a maintenance technician when a plurality of on-site devices to be maintained are widely distributed at a plurality of sites. The maintenance is supported by transmitting maintenance information on the field devices from the server computer to the information terminal.

Here, the server computer is provided with travel time storage means for storing travel time information between sites at a plurality of sites. Further, when the maintenance person performs maintenance of the on-site equipment at two or more sites, the route determining means determines the inter-site movement route such that the total traveling time is minimized. This inter-site movement route is transmitted to the portable information terminal by the transmission processing means.

On the other hand, in the portable information terminal, the inter-site moving route received from the server computer is displayed by the output processing means. Therefore, the maintenance routes of the field devices scattered over a wide area can be appropriately determined, and the field devices can be efficiently maintained.

Next, a maintenance support system according to a sixth aspect of the present invention is a portable support system which is carried by a maintenance technician when a plurality of site devices to be maintained are widely distributed in a plurality of sites. The maintenance is supported by transmitting maintenance information on the field devices from the server computer to the information terminal.

Here, the portable information terminal is provided with route information storage means for storing route information relating to a travel route between sites to be visited. Further, position information measuring means for measuring own position is provided, and in the warning output means, the position information created by the position information measuring means is compared with the path information, and the own position deviates from the movement path. If so, a warning is given. Therefore, even when the field devices are scattered over a wide area, efficient maintenance patrol for each field device can be realized.

[0027]

Embodiments of the present invention will be described below. (First Embodiment of the Invention) FIG. 1 is a block diagram showing an example of the overall configuration of a maintenance support system according to a first embodiment of the present invention.

This maintenance support system includes a server computer 1
It is divided into a center side 120 centered on 01 and a site side 121 centered on a portable information terminal 105 that can be carried to the site.

The center side 120 is the server computer 101
Is connected to a maintenance information database 102 and a maintenance result database 103. The maintenance information database 102 stores maintenance information including various types of information necessary for maintenance such as maintenance items, maintenance methods, maintenance periods, specifications, and the like of the field devices 106. The maintenance result database 103 stores
Stores the result of maintenance.

The server computer 101 is a portable information terminal 10
5, the maintenance information of the field device 106 to be maintained is stored in the maintenance information database 10.
2 and is transmitted to the portable information terminal 105 through the wireless network 104. Also, the server computer 101
Is the mobile information terminal 10 via the wireless network 104.
5 receives the maintenance result information, and stores the information in the maintenance result database 103. Note that a wired information network may be used instead of the wireless network 104. For example, the communication may be secured by connecting the portable information terminal 105 to a terminal of a factory network.

FIG. 2 is a block diagram showing a configuration example of the portable information terminal of the present embodiment. The portable information terminal 105 includes a communication unit 110, a storage unit 111, a processing unit 112, and an output unit 114.
And an input unit 113.

The communication unit 110 is a transmission / reception device for wireless communication in the present embodiment, and the processing unit 112 controls the transmission timing of input contents to the portable information terminal 105 and the processing of received information. Thereby, the server computer 10
1 communicates with the communication device. Note that the wireless network 1
When 04 is wired, the communication unit 110 is also a wired transmitting / receiving device.

The storage unit 111 temporarily or permanently stores communication data such as maintenance information and maintenance result information. Further, the maintenance information and the like may be stored before the departure of the maintenance and inspection.

The processing unit 112, as described above,
10 is controlled, and the entire data processing is performed using the contents of the storage unit 111. The output unit 114 is received,
The maintenance information and the like stored in the storage unit 111 are output to the maintenance and maintenance staff by screen display, voice output, and the like. If the output is an alarm, the maintenance person may be notified by voice or alarm sound.

The input unit 113 is a part for inputting a maintenance result (maintenance result information) by a maintenance person or the like using a keyboard or the like in order to request the maintenance information. In the input unit 113, it is also possible to perform an input using a touch screen or an audio input with a voice recognition function.

Next, the operation of the maintenance support system of the present embodiment configured as described above will be described. First, the maintenance person goes to the site with his / her own portable information terminal 105. At the site, the maintenance staff can
At this time, maintenance information is requested via the portable information terminal 105 in order to confirm the maintenance target device and its maintenance method, specifications, and the like.

In the portable information terminal 105 to which the maintenance information request has been input from the input unit 113, the processing unit 112
The contents of the storage unit 111 are checked. Here, when the necessary maintenance information is not in the storage unit 111, the maintenance information is requested to the server computer 101 via the communication unit 110.

Upon receiving the request, the server computer 101 searches the maintenance information database 102 for the maintenance information of the field device to be maintained, and transmits the information to the portable information terminal 105 through the wireless network 104.

The transmitted maintenance information is temporarily stored in the storage unit 111, and the information is read out by the processing unit 112 and displayed and output from the output unit 114. Maintenance personnel
Perform maintenance work while checking this information.

After the maintenance work is completed, the result of the maintenance is input to the portable information terminal 105. Once input, the storage unit 11
The maintenance result information stored in No. 1 is processed by the processing unit 112.
The data is transmitted to the center side 120 via the communication unit 110 and the wireless network 104.

The maintenance result information transmitted to the center side 120 is received by the server computer 101 and further stored in the maintenance result database 103. Thus, the maintenance at one site is completed, and the maintenance person goes to the next site. Then, the maintenance result is appropriately reported to the center side 120 while the maintenance information is acquired as needed at each site 121.

As described above, the maintenance support system according to the embodiment of the present invention uses the server computer 101 to provide information necessary for the maintenance of field devices when the field devices 106 widely distributed are maintained. Is transmitted from the database 102 in which the information is stored to the mobile information terminal 105 at the site via the server computer 101, such as the device to be maintained, the maintenance method, and the device specifications.
At the time of maintenance of No. 6, there is no need to carry documents (manuals) describing the maintenance method, device specifications, and the like, and the points to be maintained can be reliably grasped.

Therefore, not only a person who is unfamiliar with maintenance can perform maintenance, but also it is not necessary to copy and distribute the same manuals to a plurality of maintenance personnel, thereby achieving various efficiencies.

At the same time, by inputting the result of the maintenance of the on-site equipment to the portable information terminal 105, the maintenance result information is transmitted from the on-site side 121 to the center side 120 and the maintenance result database 103 is maintained. At this point, the maintenance result can be immediately grasped on the center side 120, and the validity of the maintenance can be immediately confirmed. Therefore, it is not necessary to return the maintenance result to the center side and re-enter the result into the system.

In this embodiment, the maintenance information is transmitted from the server computer 101 to the portable information terminal 105 by requesting the maintenance information from the site 121, but the present invention is not limited to such a case. Absent. For example, the maintenance person may download the maintenance information from the maintenance information database 102 to the portable information terminal 105 in advance at the center 120 before the maintenance person goes to the maintenance of the field device 106. In this case, the processing unit 112
Since necessary processing information can be found when the information 11 is checked, the maintenance information can be output without requesting information from the site. (Second Embodiment of the Invention) The maintenance support system of the present embodiment is different from the system of the first embodiment in that it supports the transmission of maintenance result information from the portable information terminal 105 and performs maintenance together with the maintenance target device. It is intended to prevent omission of maintenance at one site by transmitting to-site devices to be transmitted from the center side and displaying them from the portable information terminal.

FIG. 3 is a block diagram showing an example of a configuration on the center side of the maintenance support system according to the second embodiment of the present invention. Here, only the different parts will be described.

The server computer 101 has a communication unit 211 for communicating with the portable information terminal 105 via the wireless network 104 and a storage unit 212 for temporarily storing various information.
And a processing unit 212 for performing processing for the storage unit 211, the communication unit 210, the maintenance information database 102, and the maintenance result database 103.

This maintenance support system includes the server computer 1
01 is provided with a simultaneous maintenance equipment search unit 214 in the processing unit 213, a simultaneous maintenance table 201 is provided in the maintenance information database 201, and the configuration is the same as that of the first embodiment.

The communication unit 211 is a wireless network 104
2 for communicating with the portable information terminal 105, and has the same configuration as the communication unit 110 in FIG. In addition, the storage unit 212 stores the portable information terminal 10 via the communication unit 211.
In addition to temporarily or permanently storing maintenance information, maintenance result information, and other various information to be exchanged with the storage unit 5, the stored information is shared with the processing unit 112.

The processing section 213 responds to the maintenance information request from the portable information terminal 105 and
And sends necessary maintenance information, and stores maintenance result information from the portable information terminal 105 in the maintenance result information database 103. Although not particularly shown in FIG. 1, the communication unit 211, the storage unit 212, and the processing unit 213 are also provided in the server computer 101 of the first embodiment.

The simultaneous maintenance device searching unit 214 provided in the processing unit 213 and being a part of the processing function has a configuration corresponding to the present embodiment. Upon receiving the maintenance result information from the portable information terminal 105, the search unit 214 searches the site equipment 106 to be maintained at the site 121 by using the simultaneous maintenance table 201.
From the communication unit 21 and temporarily stored in the storage unit 212.
1 to transmit the search information to the portable information terminal 105.

FIG. 4 is a diagram showing a configuration example of the simultaneous maintenance table according to the present embodiment. The simultaneous maintenance table 201 stores information on field devices to be maintained at the same time as the field devices corresponding to a certain field device.

Next, the operation of the maintenance support system of this embodiment configured as described above will be described. First, the maintenance person performs maintenance of the field device A shown in FIG. 4, and information on the maintenance result of the field device A is input from the portable information terminal 105.

Next, the server computer 1 on the center side 120
01, the maintenance result information is stored in the maintenance result information database 103 and the simultaneous maintenance table 102 of the maintenance information database 102 is searched. Based on the detection result, it is determined that the field devices D and E are field devices to be maintained at the same time as the device A.

Subsequently, the instruction to maintain the site devices D and E at the same time is transmitted from the server computer 101 to the portable information terminal 105 carried by the maintenance staff at the site site 121 via the wireless network 104. At this time, the processing unit 213 of the server computer 101 also searches the maintenance information database 102 for information on the maintenance methods, device specifications, maintenance items, and the like regarding the field devices D and E, and transmits the information to the portable information terminal 105.

In the portable information terminal 105 having received the maintenance instruction information and the maintenance information, a warning sound is output from the output unit 114, and at the same time, an instruction for maintaining the field devices D and E is displayed. Then, the maintenance person retrieves the maintenance information of these devices as needed and uses it for maintenance work.

As described above, the maintenance support system according to the embodiment of the present invention has the same configuration as that of the first embodiment, and simultaneously performs maintenance while certain equipment is being maintained. Since the equipment to be performed is transmitted from the center side 120 to the site side 121, at the time of site equipment maintenance, information on other site devices to be maintained at the same time can be displayed on the mobile information terminal at the site. As a result, it is possible to eliminate omission of maintenance of field devices at one site. (Third Embodiment of the Invention) The maintenance support system according to the present embodiment is different from the first or second embodiment in that when the on-site equipment group to be maintained is provided over a plurality of areas, the portable information terminal 105 is used. The maintenance management of field devices for each area is performed by a combination of the position and the area area.

FIG. 5 is a block diagram showing an example of the overall configuration of a maintenance support system according to a third embodiment of the present invention.
The same parts as those in FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted. This maintenance support system includes a maintenance information database 1
02, a field device area information file 310 and a field device maintenance time information file 320 are provided. The server computer 101 performs a process corresponding to the file information, and the portable information terminal 105 has a position specifying function by GPS. The configuration is the same as that of the first or second embodiment.

FIG. 6 is a block diagram showing a configuration example of the portable information terminal according to the present embodiment. The same parts as those in FIG. 2 are denoted by the same reference numerals, and the description thereof will be omitted. As shown in the drawing, a GPS antenna 301 and a position information creation function unit 302 are added to the portable information terminal 105. The position information creation function unit 302 always creates its own position information from the information of the antenna 301 and delivers it to the processing unit 112. Processing unit 112
Transmits the acquired location information to the server computer 101 at all times.
To be handed over.

The processing unit 112 of the portable information terminal 105
Receives and outputs information on the device to be maintained from the server computer 101, and displays it. On the other hand, as shown in FIG.
In the present embodiment, each of the field devices 303, 304, 305,
306 belongs to a plurality of areas 307 and 308,
These areas are provided at remote locations.

The on-site equipment area information file 310 and on-site equipment maintenance time information file 320 are provided corresponding to these areas. FIG. 7 is a diagram showing a configuration example of the field device information file.

As shown in FIG. 7, the field device area information file 310 stores information on which field devices are provided in each area. FIG. 8 is a diagram showing a configuration example of a field device maintenance time information file.

As shown in FIG. 8, the on-site equipment maintenance time information file 320 stores, for each on-site equipment, information on the time when the equipment must be maintained and information on whether or not the equipment has been maintained. Have been.

The processing unit 213 (FIG. 3) of the server computer 101, based on the position information transmitted from the portable information terminal 105, when the terminal 105 enters any of the areas, the on-site device area information file 310 Then, the on-site equipment maintenance time information file 320 is searched to check the on-site equipment that the maintenance staff must maintain in the area. Further, information on the device to be maintained and maintenance information on the device are transmitted to the portable information terminal 105.

Next, the operation of the maintenance support system of the present embodiment configured as described above will be described. First, the portable information terminal 105 always creates its own position information based on information from the GPS antenna 301, and this position information is always transmitted to the server computer 101.

On the other hand, the space on the map is divided into a range of a certain radius or a space for each fixed four sides, and is recognized by the system 120 as area # 1, area # 2,. The area includes site devices, and which device is to be assigned to which area is managed by the site location area information 310 in the maintenance information database as described above.

The server computer 101 having received the position information of the portable information terminal 105 searches the area information of the field device and the information of the maintenance time on the basis of the terminal position, and finds the field device in the area where the terminal 105 exists. Then, the device that is currently in the maintenance period is selected and confirmed.

For example, in the case of FIG. 5, since the portable information terminal 105 is in the area # 1, the field devices A1 and B1 are selected as maintenance targets from the field device area information file 310 of FIG. Further, whether or not these are within the maintenance time and the maintenance is completed is checked by the on-site equipment maintenance time information file 320 in FIG. 8, and the on-site equipment to be maintained is identified as A1 and B1.

Information about the confirmed field device is transmitted from the server computer 101 to the portable information terminal 105. From the portable information terminal 105 receiving this information,
A list of field devices to be maintained in the area is displayed and output, and a maintenance person is prompted to maintain these devices. The maintenance person performs maintenance of field devices in the area according to the list.

As described above, the maintenance support system according to the embodiment of the present invention has a configuration similar to that of the first or second embodiment. On the side 120, based on the location information, the field equipment to be maintained in the area where the terminal is located is confirmed, and the list is transmitted to the terminal 105. This can inform the user of the maintenance and urge the maintenance, thereby realizing the equipment maintenance without omission. (Fourth Embodiment of the Invention) In the maintenance support system of the present embodiment, in the first to third embodiments, not only the maintenance information for inspecting the on-site equipment but also the information on how to use the on-site equipment is provided. Can also be transmitted from the server computer to the portable information terminal.

FIG. 9 is a block diagram showing an example of the overall configuration of a maintenance support system according to a fourth embodiment of the present invention.
1 to 8 are denoted by the same reference numerals, and description thereof will be omitted.

In this maintenance support system, a field device usage method database 401 for storing information on the usage of each field device is connected to the server computer 101.
The configuration is the same as in the first to third embodiments.

The processing unit 213 of the server computer 101 retrieves information on the usage of the field device from the field device usage database 401 in response to a request from the portable information terminal 105, and transmits the information to the terminal 105. I have.

Next, the operation of the maintenance support system of the present embodiment configured as described above will be described. First, it is assumed that the maintenance staff needs to operate on-site equipment to be checked on the site side 121, for example. At this time, the person in charge of maintenance sends
0, a request is transmitted to transmit usage data of the device.

Upon receiving this request, the server computer 101 searches the on-site equipment usage database 401 for usage data of the equipment, and transmits the data to the portable information terminal 105 on the spot.

The portable information terminal 105 displays the received method of use, so that the maintenance person can operate the on-site equipment. As described above, the maintenance support system according to the embodiment of the present invention has a configuration similar to that of the first to third embodiments, and further includes a method of using a field device in response to a request from the portable information terminal 105. Is transmitted from the center side 120 to the mobile information terminal 105 at the site, so that even if the site does not know how to handle the on-site equipment, the device can be handled, eliminating the need to carry the instruction manual. it can.

In this embodiment, the usage method is transmitted in response to a request from the portable information terminal 5.
The present invention is not limited to such a case. For example, in the case of having the configuration of the third embodiment, the server computer 101 determines the field device belonging to the area where the portable information terminal 105 exists, and automatically transmits the usage information of the device in the area. It may be. (Fifth Embodiment of the Invention) The maintenance support system according to the fifth embodiment is the same as the third or fourth embodiment, except that the maintenance person causes the portable information terminal to hold the equipment to be maintained on the day of the maintenance and inspection, When there is a maintenance omission, a warning is given to a maintenance person.

FIG. 10 is a block diagram showing a configuration example on the center side in a maintenance support system according to a fifth embodiment of the present invention. FIG. 11 is a block diagram illustrating a configuration example of a portable information terminal according to the present embodiment. 10 and 11, the same parts as those in FIGS. 1 to 9 are denoted by the same reference numerals, and the description thereof will be omitted.

On the center side, a processing-and-maintenance editing unit 501 is provided in the processing unit 213 of the server computer 101, and a third
Alternatively, the configuration is the same as that of the fourth embodiment. When the portable information terminal 105 inquires about the maintenance equipment on the day, the maintenance editing unit 501 on the day uses the on-site equipment area information file 310 and the on-site equipment based on the area information assigned by the maintenance person and the information on the maintenance date. Select a compatible device from the device maintenance time information file 320,
Create a maintenance list on the day.

The processing section 213 of the server computer 101 transmits the same day maintenance list created by the same day maintenance editing section 501 to the portable information terminal 105. On the other hand, the portable information terminal 105
Is that the maintenance list 502 is stored in the storage unit 111 on the day, and the maintenance check processing unit 50
3 and the configuration is the same as that of the third or fourth embodiment.

FIG. 12 is a diagram showing an example of the structure of a maintenance list on the day stored in the portable information terminal. The maintenance / maintenance list 502 includes names of each field device to be maintained on the day by a maintenance person holding the portable information terminal 105, location information indicating an area corresponding to the name, and whether or not the device has been maintained. It consists of a situation item. The item of the maintenance status is “not yet” until all the maintenance result information is input for the item to be maintained and the maintenance is completed. When all maintenance is completed, the status changes to "Done". The list 502 also stores specific position information of the area to which the device to be maintained belongs.

The maintenance check processing unit 503 always receives its own position information from the position information creation function unit 302, and keeps track of whether or not it is in an area based on this position information. Further, when the user's own position moves from inside an area to outside the area, the same day maintenance list 501 is searched to check whether or not all field devices belonging to the area have been maintained. Output an alarm.

Next, the operation of the maintenance support system of the present embodiment configured as described above will be described. First, based on the data in the files 310 and 320 of the maintenance information database 102, a daily maintenance list 502 of field devices to be maintained on the same day is edited by the server computer 101 and transmitted to the portable information terminal 105. And the portable information terminal 1
05 is stored in the storage unit 111.

As shown in FIG. 5, it is assumed that the maintenance person having the portable information terminal 105 has left the area # 1 without inputting the maintenance result information to the predetermined maintenance items of the field devices A1 and B1. In this case, by the processing of the maintenance check processing unit 503 based on the position information from the GPS and the position information of the area # 1 included in the storage unit 111, it is detected that the vehicle has left the area # 1. At this time, if at least one of the maintenance status items in the area includes “not yet”, the maintenance check processing unit 503 uses voice or screen display to perform maintenance on the area. The maintenance person is notified to return.

In this way, the maintenance person continues to maintain the unmaintained equipment in the same area. The process of determining that the portable information terminal 105 is inside or outside the area will be specifically described.

For example, area # 1 has a radius rl and a center (x
Assuming that the position of the portable information terminal 105 is (xt, yt) in a circular area of (l, yl), ((xt−xl) ² + (yt-yl) ² ) ^1/2 ≦ rl (1) If so, it is determined that portable information terminal 105 is inside area # 1, and otherwise, it has left area # 1.

Area # 1 is (xa, ya), (x
a, xb), (xb, ya), and a rectangle surrounded by (xb, yb), indicating the position of the portable information terminal 105 by (xt, y
t), if xa <xb and ya <yb, xa ≦ xt ≦ xb (2) and ya ≦ yt ≦ yb (3), the portable information terminal 105 is inside the area # 1, In other cases, it is determined that the user has gone out of the area # 1.

As described above, the maintenance support system according to the embodiment of the present invention has the same configuration as that of the third or fourth embodiment, and the portable information terminal is provided with the equipment to be maintained in each area. The maintenance status is compared with the change in the terminal position to determine whether or not the mobile device has to be maintained even when there are remaining items to be maintained and devices to be maintained. When a maintenance technician with a terminal attempts to leave the site, an alarm can be issued from the portable information terminal to notify the user. This allows
Leakage of maintenance can be prevented. (Sixth Embodiment of the Invention) The maintenance support system of the present embodiment differs from the third to fifth embodiments in that the personal digital assistant 1
05 adds a warning function when entering the area.

This maintenance support system uses the portable information terminal 1
When the device 05 enters a certain area of the device to be maintained, an alarm is output to that effect, and the configuration is the same as in the third to fifth embodiments.

Next, the operation of the maintenance support system of the present embodiment configured as described above will be described. First, the maintenance person having the portable information terminal 105 checks the on-site equipment A
1. Before entering the area 1 from outside the area 1 before the maintenance of the B1, the portable information terminal 10
In step 5, it is detected that the user has entered the area # 1.

A method for determining that the vehicle has entered the area # 1 is as follows.
There are methods based on the equations (1) to (3) described in the fifth embodiment based on the coordinates of the area # 1 and the coordinates of the portable information terminal. When the portable information terminal 105 enters the area 1,
Since the processing unit 112 has entered the area where the field device to be maintained exists, the maintenance person is notified by voice or screen display to maintain the field device.

According to the notification, the maintenance person starts the maintenance work. As described above, the maintenance support system according to the embodiment of the present invention has the same configuration as the third to fifth embodiments, and also compares the area coordinates with the portable information terminal coordinates to determine the terminal position. Because the user always checks, when the maintenance person with the portable information terminal 105 comes near the on-site equipment to be maintained, the maintenance person is automatically prompted to perform the maintenance from the portable information terminal. Can be. Therefore,
Leakage of maintenance can be prevented. (Seventh Embodiment of the Invention) The maintenance support system according to the present embodiment is different from the first to sixth embodiments in that the information transmitted from the portable information terminal to the center includes information such as the maintenance date and time and the location of field devices. This eliminates the need for subsequent information input on the center side, making it easier to check and display.

FIG. 13 is a diagram showing an example of the format of the maintenance result data input and transmitted by the portable information terminal in the maintenance support system according to the seventh embodiment of the present invention. In this maintenance support system, a portable information terminal is used as shown in FIG.
In addition to inputting the maintenance result information in the format shown in FIG. 3, the maintenance result information is transmitted to the server computer 101 on the center side.
The configuration is the same as in the first to sixth embodiments.

Next, the operation of the maintenance support system of the present embodiment configured as described above will be described. For example, in FIG. 5, it is assumed that a maintenance person having the portable information terminal 105 first performs maintenance of the field devices A1 and B1.

The maintenance result is input to the portable information terminal 105 and transmitted from the portable information terminal 105 to the maintenance result database 103 via the server computer 101. As shown in FIG. 13, the format of the transmission data records the date and time of maintenance and the location of the field device measured by GPS. Also, status information such as the quality of the maintenance result is recorded.
In the example of FIG. 13, the location of the device is recorded in area units, but it is also possible to record more detailed position information such as measuring latitude and longitude by GPS. Note that G
When the PS position detecting system is not added to the portable information terminal, the position information is input by the maintenance person.

When the detailed position information is input in this manner, for example, the portable information terminal 105 and the server computer 101
A map can be displayed on the screen, and the location of the field device can be specified from the latitude and longitude. Thereby, the position of the maintenance equipment can be displayed on the map.

Further, it is easy to determine what kind of next inspection should be performed and when to perform the next inspection based on the quality information of the maintenance result. As described above, the maintenance support system according to the embodiment of the present invention has the same configuration as that of the first to sixth embodiments, and further, when the maintenance result of the field device is input to the portable information terminal, the portable information terminal Since the position information and the maintenance time are automatically transmitted to the center, the center can easily manage where and when the maintenance was performed and the result of the maintenance.

In particular, when field devices of the same type are scattered in various places, it is possible to easily specify which device is maintained. In addition, the identification result,
A map can be displayed on the screen of both the portable information terminal 105 and the server computer 101. (Eighth Embodiment of the Invention) In the maintenance support system of the present embodiment, when there are a plurality of equipment maintenance sites (areas) in the first to seventh embodiments, an optimal patrol route of each site is provided. Is calculated and stored in the portable information terminal.

In this maintenance support system, a maintenance time status database 810 in which maintenance times and maintenance statuses of field devices are registered in the maintenance information database 102, and a travel time database 820 in which travel times between the center and each field device are registered. And a maintenance time database 830 in which the time required for the maintenance of the on-site equipment is registered, and the processing unit 213 calculates the optimum route based on the maintenance time database 830. In addition, as in the first to eighth embodiments, It is configured.

FIG. 14 is a diagram for explaining the route derivation in the maintenance support system according to the eighth embodiment of the present invention. The time and the example of the time required for the maintenance of the on-site equipment are explained.

FIG. 15 is a diagram showing a configuration example of the maintenance time situation database of this embodiment. FIG. 16 is a diagram illustrating a configuration example of the travel time database according to the present embodiment. FIG.
FIG. 3 is a diagram illustrating a configuration example of a maintenance time database according to the present embodiment.

Next, the operation of the maintenance support system of the present embodiment configured as described above will be described. First, in the server computer 101, the processing unit 213 searches the maintenance time situation database 810, and selects a field device for which maintenance is currently performed and maintenance is not yet performed. In addition, the travel time database 820 is searched, and the arrival times of the on-site devices from the center and the arrival times between the on-site devices are acquired. Further, the time required for the maintenance of the field device is acquired from the maintenance time database 830.

For example, if three field devices A, B, and C are to be maintained at present, the relationship between maintenance and moving time is as shown in FIG. From this, to minimize the time required for patrol and maintenance of each field device,
The maintenance plan is created by the processing unit 213 of the server computer 101. In this case, if the working hours per day is 8 hours,
It takes 8 hours to go from the center to the on-site equipment A (maintenance of A) → the on-site equipment B (maintenance of B) → the center, and it takes 8 hours to go to the center → the on-site equipment C (maintenance of C) → the center. It is optimal to carry out maintenance on the above route.

The server computer 101 calculates the route and time from the center to return to the center within one working day. For example, the travel time between the center and the field device A and the maintenance time of the field device A are calculated. If the round trip and maintenance of the field device A are less than 8 hours, the device moves from A to another field device (for example, B). Route calculation is also performed. A → B
If the time to return to the center from the station is less than 8 hours, a route from B to another field device is further calculated. In this example, it takes more than 8 hours to return to the center after circulating from A to B to C, so that only maintenance from A to B is possible.

The tree-like search calculation as described above is performed in order, and a traveling route that can be maintained in a minimum time within working conditions is proposed. For example, a tree for calculating the time required for the entire route that returns from the center to the site device and returns to the center is as shown in FIG.

FIG. 18 is a diagram showing an example of a tree-like search calculation in this embodiment. When the tour route is determined, the result is transmitted to the portable information terminal 105 and further displayed and output on the terminal. As a result, the maintenance person can know his or her patrol route for the day.

As described above, the maintenance support system according to the embodiment of the present invention has the same configuration as the first to seventh embodiments, and also includes the time required for on-site equipment maintenance, the maintenance deadline, Database 810 that stores the travel time of
Since 820 and 830 are provided and a maintenance plan is created from the information, it is possible to efficiently circulate and maintain field devices scattered over a wide area. (Ninth Embodiment of the Invention) A maintenance support system according to a ninth embodiment of the present invention is the same as the eighth embodiment, except that the travel time is automatically calculated from the position information and the map information of the on-site equipment. Create information.

FIG. 19 is a block diagram showing an example of a configuration on the center side in a maintenance support system according to the ninth embodiment of the present invention. The same parts as those in FIGS. Description is omitted.

As shown in the figure, the server computer 101 is connected to a site information position database 910, a map information database 911, and a route map information database 912 in addition to the maintenance information database 102 and the maintenance result database 103. Also, the server computer 101
In addition, as a functional part of the processing unit 213, a position registration processing unit 901, a position search unit 902, a movement time calculation unit 903 between field devices, a route plan calculation unit 904, a route selection unit 90
5 are provided.

The position registration processing unit 901 registers and accepts the position information of the latitude and longitude of the device by indicating the position of the field device on the map information by a digitizer or the like. The site device position database 910 includes a position registration processing unit 901.
Stores the position information of each field device accepted in.

The position search unit 902 responds to an external request for creating a field device patrol plan by the field device position database 9.
10, the position information of the corresponding field device is extracted, and the position information is notified to the inter-field device movement time calculation unit 903.

The on-site device travel time calculation unit 903 applies the notified position information to the map information in the map information database, and determines a travel route between the center and the devices or between the devices. In determining the movement route, the travel time of a conceivable route by a road or a means of transportation for movement between two devices or the like on the map information is calculated, and the minimum travel time is adopted. The travel time of the adopted route is stored in the travel time database 820, and information such as roads and transportation used is stored in the route map information database 912 as route map information. The determination of the movement route may be manually designated by an operator using a digitizer or the like.

The map information database 911 stores map information including information on roads and various transportation means and information on travel times. Route map information database 912
Stores the route map information. The route map information is map level information.

The route plan calculation unit 904 searches the maintenance time situation database 810, the travel time database 820, and the maintenance time database 830, calculates various route plans, and notifies the route selection unit 905 of each plan.

The route selection unit 905 includes a route plan calculation unit 904
Considers the plan created by and selects the route plan that has the minimum time. After the selection of the optimum route, the communication unit 211 specifies the route map information corresponding to the route plan stored in the route map information database 912 and transmits the route map information to the portable information terminal 105 while including the route plan information.

Next, the configuration of a portable information terminal that receives a route plan including route map information will be described. FIG. 20 is a block diagram illustrating a configuration example of the portable information terminal according to the present embodiment.
The same parts as those in FIG. 19 are denoted by the same reference numerals, and description thereof will be omitted.

The portable information terminal 105 has a storage unit 111
In addition, a route plan including the above route map information is stored in the route information unit 1001 as maintenance tour route information, and a collation function unit 1002 is provided.

The collation function unit 1002 compares the maintenance patrol route information with its own position information by GPS, and when its own position is off the maintenance patrol route, the output unit 114.
A warning is issued from the display or by an alarm sound.

The maintenance support system of this embodiment has the same configuration as the first to eighth embodiments, except for the above components. Next, the operation of the maintenance support system of the present embodiment configured as described above will be described.

First, the operation of the center side 120 will be described. First, the position of the field device is input to the server computer 101. The location information of the field device is stored in the field device position database 910 by the position registration processing unit 901 which is a function of registering a position. This information is registered by a digitizer or the like using the latitude and longitude on the map.

Next, a request from the portable information terminal 105 or a direct input to the server computer 101 on the center side makes a request for creating a field device patrol plan. At this time,
By the position search unit 902, the on-site equipment position database 9
10, the position of the on-site equipment to be subjected to maintenance patrol is searched, and the time required for the movement between the on-site equipment is calculated by the on-site equipment movement calculation unit 9.
03 is calculated.

For example, a new field device is registered,
When it becomes a target of maintenance patrol, its position is registered, and the travel time between the site device and the center or between each site device is calculated. The result is registered in the travel time database 820 and the route map information database 912 as data relating to the new field device. At this time, the travel route on the road is first determined based on the map information and the device position information so as to be the shortest, and the travel time is calculated based on the travel route based on the road route on the map.
Thus, the shortest route is registered. When transportation is used, travel time information is also considered. The route map information also includes the minimum map information required for the collation processing in the portable information terminal 105.

At the same time as the above processing, the maintenance time of the new field device is registered in the maintenance time status database 810, and the time required for maintenance is also registered in the maintenance time database 830. Here, when the position information of the new field device is not particularly registered, the position search unit 902 and the travel time calculation unit 903 between the field devices do not perform new calculation and registration, and go to the process of the route plan calculation unit 904. move on.

Next, a maintenance tour route plan is created by the route plan calculation unit 904, and an optimum route is selected by the route selection unit 905 from this plan. Then, the created maintenance circuit route information is communicated to the portable information terminal 105 and notified to a maintenance person.

Next, the operation of the portable information terminal will be described.
In the portable information terminal 105, information at the map level of the maintenance tour route of the field device received from the server computer 101 is stored in the route information unit 1001.

On the other hand, the position where the portable information terminal 105 exists is measured by the GPS antenna 301, and becomes the position information by the position information creation function 302. This location information
The collation function unit 1002 uses the maintenance circuit information 1001
Is always collated, and an alarm is output if its position deviates from the route.

FIG. 21 is a diagram for explaining how a maintenance person moves along a patrol route. As shown in the figure, for example, when moving from a center to a field device, an area within a certain distance from the route (portion surrounded by a thick line) is an allowable range of the position of the portable information terminal, and its coordinates are stored in the storage unit 1.
11 stored in the route information unit 1001. If the position of the portable information terminal 105 is out of the allowable range shown in the figure, an alarm is output from the output unit 114 by screen display or voice, and the maintenance person is notified.

The coordinates of the permissible range are stored in a bitmap format on a map. If the same coordinates as the coordinates (xt, yt) of the portable information terminal are present, the coordinates are within the permissible range; There is.

FIG. 22 is a diagram for explaining another state in which the maintenance person moves along the patrol route. Another method for determining whether the value is out of the allowable range is shown in FIG. That is, there is a method in which the allowable range is approximated by some rectangles coarser than the bitmap, and the coordinates are compared with the coordinates of the portable information terminal by using the equations (2) and (3) in the fifth embodiment.

As described above, the maintenance support system according to the embodiment of the present invention has the same configuration as that of the first to eighth embodiments, and furthermore, the server computer uses the local equipment based on the location information of the local equipment. Since the time required for moving to the place is calculated, it is not necessary to input the moving time to the field device one by one into the system.

That is, it is possible to automatically perform the following processing up to the calculation of the route plan only by inputting the position information of the field device. Therefore, when registering a new field device,
Calculation of the maintenance patrol time of the on-site equipment can be facilitated.

Further, in the maintenance support system according to the embodiment of the present invention, the route information is stored in the portable information terminal, the position information is always measured, and the two are compared with each other. If the vehicle deviates from the predetermined moving route, an alarm can be generated to notify the deviation of the route. Therefore, when the maintenance person moves by mistake on the route, it is possible to recognize the deviation from the route and return to the predetermined route. (Tenth Embodiment of the Invention) In the maintenance support system of the present embodiment, in the first to ninth embodiments, special maintenance information at the time of a disaster can be provided for maintenance information such as maintenance items. Things.

FIG. 23 is a block diagram showing an example of the overall configuration of a maintenance support system according to the tenth embodiment of the present invention. The same parts as those in FIGS. Omitted.

In the maintenance support system of this embodiment, in addition to the normal maintenance information corresponding to the first to ninth embodiments, the disaster maintenance information 1 is stored in the maintenance information database 102.
101, and the server computer 101
Is provided with a maintenance method selection function unit 1102,
The configuration is the same as that of the first embodiment.

Next, the operation of the maintenance support system of the present embodiment configured as described above will be described. The maintenance information database 102 stores information on maintenance items and maintenance methods of field devices in two cases: normal time and disaster time. When a mode input during a normal time or a disaster is performed on the server computer 101, the maintenance method selection function unit 1
With 102, maintenance information in the maintenance information database 1101 is selected. This maintenance information is transmitted to the portable information terminal 105. On the basis of the maintenance information, an on-site maintenance person performs on-site equipment maintenance.

Further, the maintenance person inputs a normal mode or disaster mode selection to the portable information terminal 105, and the server computer 1
01 can be requested to transmit maintenance information. At this time, the maintenance information is transmitted from the server computer 101 to the portable information terminal 105 at the site based on the request.

As described above, the maintenance support system according to the embodiment of the present invention stores a normal maintenance item and a non-normal maintenance item as maintenance items of field devices, In response to this, the maintenance item in either case is notified according to the situation, so that it is possible to cope with maintenance in both normal times and disasters.

Therefore, in the maintenance and inspection of the on-site equipment at the time of disaster, even if it is necessary to perform maintenance and inspection on items different from those at normal times, the maintenance staff at the site can perform appropriate maintenance and inspection. (Eleventh Embodiment of the Invention) In the maintenance support system of the present embodiment, in the first to tenth embodiments, special maintenance information at the time of a disaster is used for information on maintenance equipment necessary for maintenance of field devices. Is also provided.

FIG. 24 is a block diagram showing an example of the overall configuration of a maintenance support system according to the eleventh embodiment of the present invention. The same parts as those in FIGS. Omitted.

In the maintenance support system of this embodiment, the maintenance information database 102 stores the emergency maintenance equipment information 1201 in addition to the normal maintenance equipment information corresponding to the first to tenth embodiments. In addition, the server computer 101 is provided with a maintenance equipment selection function unit 1202, and is configured similarly to the first to tenth embodiments. Although the maintenance equipment information is a part of the maintenance information, in the present embodiment, the equipment information is provided in particular.

FIG. 25 is a diagram showing an example of the contents of the maintenance equipment information of the present embodiment. Each of the maintenance equipment information at the time of normal operation and at the time of disaster constitutes an equipment database 1210 for maintenance. In other words, parts necessary for maintenance, measuring instruments required for inspection, and the like are registered for each field device, at normal times and at times of disaster.

Next, the operation of the maintenance support system of the present embodiment configured as described above will be described. The maintenance information database 102 stores information on maintenance equipment necessary for the maintenance of the on-site equipment, and this information is divided into two cases: normal times and disaster times.

First, the server computer 101 inputs a mode at the time of normal operation or at the time of disaster. In response to this input, the maintenance equipment selection function unit 1202 causes the maintenance information database 1
02 maintenance equipment information is selected and the portable information terminal 105
Is transmitted to the device information. Based on the equipment information, the maintenance person carries necessary equipment at the time of maintenance, or requests the required equipment from the site 121 to the center side 120.

Further, the maintenance person inputs a normal mode or a disaster mode selection to the portable information terminal 105, and the server computer 1
01 can request transmission of equipment information. Based on this request, the equipment information is transmitted from the server computer 101 to the portable information terminal 105 at the site.

As described above, the maintenance support system according to the embodiment of the present invention has a configuration similar to that of the first to tenth embodiments, and also includes a normal maintenance and a non-normal maintenance. In this case, the maintenance personnel are notified of the necessary equipment before heading for on-site maintenance, so even if parts and equipment necessary for maintenance and inspection equipment are required for maintenance and inspection of on-site equipment in the event of a disaster, Even if the maintenance / inspection is different from the above, the maintenance staff at the site can easily grasp and arrange appropriate maintenance / inspection equipment.

[0146] Also, since necessary equipment information can be requested from the site, disaster equipment can be easily taken out of the storage place according to the situation at the time of normal installation at the site.

In the present embodiment, the storage location of the equipment may also be recorded in the maintenance equipment database 1210 so that the necessary equipment can be easily prepared before departure for maintenance and inspection.

The present invention is not limited to the above embodiments, but can be variously modified without departing from the gist thereof. The method described in the embodiment may be a program (software means) that can be executed by a computer (computer), for example, a magnetic disk (floppy disk, hard disk, etc.), an optical disk (CD-ROM, DVD, etc.), semiconductor It can also be stored in a storage medium such as a memory or transmitted and distributed via a communication medium. The program stored on the medium side includes a setting program for causing the computer to execute software means (including not only an execution program but also a table and a data structure) to be executed in the computer. A computer that realizes the present apparatus reads a program recorded in a storage medium, and in some cases, constructs software means by using a setting program, and executes the above-described processing by controlling the operation of the software means.

[0149]

As described above in detail, according to the present invention, it is possible to provide a maintenance support system which eliminates the need to carry manuals for maintenance work of field devices and reduces omission of maintenance of field devices. .

Further, according to the present invention, it is possible to provide a maintenance support system capable of appropriately providing maintenance information corresponding to the position of a maintenance person. Furthermore, according to the present invention,
By trying to leave the site without performing the prescribed maintenance or notifying the maintenance person when the vehicle approaches the on-site equipment to be maintained, leakage of maintenance can be further reduced. Thus, it is possible to provide a maintenance support system capable of preventing a case where a maintenance inspection omission regarding a field device to be maintained is found after leaving the inspection site.

Further, according to the present invention, it is possible to provide a maintenance support system capable of appropriately determining the maintenance routes of field devices scattered over a wide area and realizing efficient maintenance patrols.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an overall configuration example of a maintenance support system according to a first embodiment of the present invention.

FIG. 2 is an exemplary block diagram showing a configuration example of the portable information terminal according to the embodiment.

FIG. 3 is a block diagram showing a configuration example on the center side in a maintenance support system according to a second embodiment of the present invention.

FIG. 4 is an exemplary view showing a configuration example of a simultaneous maintenance table according to the embodiment;

FIG. 5 is a block diagram showing an overall configuration example of a maintenance support system according to a third embodiment of the present invention.

FIG. 6 is an exemplary block diagram showing a configuration example of the portable information terminal according to the embodiment;

FIG. 7 is a diagram showing a configuration example of a field device information file.

FIG. 8 is a diagram showing a configuration example of a field device maintenance time information file.

FIG. 9 is a block diagram showing an overall configuration example of a maintenance support system according to a fourth embodiment of the present invention.

FIG. 10 is a block diagram showing a configuration example on the center side in a maintenance support system according to a fifth embodiment of the present invention.

FIG. 11 is an exemplary block diagram showing a configuration example of the portable information terminal according to the embodiment;

FIG. 12 is a diagram showing a configuration example of a maintenance list on the day stored in the portable information terminal.

FIG. 13 is a diagram showing an example of a format of maintenance result data input and transmitted by a portable information terminal in a maintenance support system according to a seventh embodiment of the present invention.

FIG. 14 is a view for explaining route derivation in a maintenance support system according to an eighth embodiment of the present invention.

FIG. 15 is an exemplary view showing a configuration example of a maintenance time situation database of the embodiment.

FIG. 16 is an exemplary view showing a configuration example of a travel time database according to the embodiment.

FIG. 17 is an exemplary view showing a configuration example of a maintenance time database of the embodiment.

FIG. 18 is an exemplary view showing an example of a tree-like search calculation in the embodiment.

FIG. 19 is a block diagram showing a configuration example on the center side in a maintenance support system according to a ninth embodiment of the present invention.

FIG. 20 is an exemplary block diagram illustrating a configuration example of the portable information terminal according to the embodiment.

FIG. 21 is a diagram illustrating a state in which a maintenance person moves along a patrol route.

FIG. 22 is a view for explaining another state in which the maintenance person moves along the patrol route.

FIG. 23 is a block diagram showing an example of the overall configuration of a maintenance support system according to a tenth embodiment of the present invention.

FIG. 24 is a block diagram showing an overall configuration example of a maintenance support system according to an eleventh embodiment of the present invention.

FIG. 25 is an exemplary view showing a content example of maintenance equipment information of the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 101 ... Server computer 102 ... Maintenance information database 103 ... Maintenance result database 104 ... Wireless network connecting the center side and the site side 105 ... Portable information terminal 106 ... Field device to be maintained 110 ... Communication unit of portable information terminal 111 ... Portable information terminal Storage unit 112: portable information terminal processing unit 113: portable information terminal input unit 114: portable information terminal output unit 120: center side 121: site side 201: simultaneous maintenance table 211: server computer communication unit 212: server Computer storage unit 213 Server server processing unit 214 Simultaneous maintenance device search unit 301 GPS antenna 302 Position information creation function unit 303 Device A1 304 Device B1 305 Device C2 306 Device D2 307 Area # 1 308: Area # 2 310: On-site equipment area information File 320: On-site equipment maintenance time information file 401: On-site equipment usage database 501: On-site maintenance editing unit 502: On-site maintenance list 503: Catcher check processing unit 701: Data on the status of maintenance of on-site equipment 801: Center 802: On-site equipment A 803: On-site equipment B 804: On-site equipment C 810: Maintenance time status database 820: Travel time database 830: Maintenance time database 901: Location registration processing unit 902: Location search processing unit 903: Travel time calculation processing unit between on-site devices 904 ... Route plan calculation processing unit 905 ... Route selection processing unit 910 ... Field device position database 911 ... Map information database 912 ... Route map information database 1001 ... Route information unit 1002 ... Collation function unit 1101 ... Disaster maintenance information 1102 ... Maintenance method selection Noh 1201 ... for disaster maintenance equipment 1202 ... maintenance equipment selection function 1210 ... equipment database for maintenance

Claims (6)

[Claims] When a plurality of field devices to be maintained are widely distributed, a server computer transmits maintenance information on the field devices to a portable information terminal carried by a maintenance person. A maintenance support system for supporting maintenance by means of the server computer, wherein the server computer stores simultaneous maintenance information, which is information about other field devices to be maintained at the same time when a certain field device is maintained, And transmission processing means for transmitting the simultaneous maintenance information to the portable information terminal, wherein the portable information terminal includes output processing means for displaying the simultaneous maintenance information received from the server computer. Maintenance support system. 2. When a plurality of field devices to be maintained are widely distributed at a plurality of sites, a server computer performs maintenance on a portable information terminal carried by a maintenance person from a server computer. A maintenance support system for supporting maintenance by transmitting information, wherein the portable information terminal includes: a position information measuring unit that measures a position of the portable information terminal; and a server computer that transmits position information measured by the position information measuring unit to the server computer. The server computer further includes means for transmitting, to the portable information terminal, maintenance information used at a site where the portable information terminal is located, based on the received position information. A featured maintenance support system. 3. When a plurality of on-site devices to be maintained are widely distributed in a plurality of sites, a server computer performs maintenance on a portable information terminal carried by a maintenance person from a server computer. A maintenance support system that supports maintenance by transmitting information, wherein the portable information terminal includes: a position information measuring unit that measures a position of the portable information terminal; and a server computer that transmits position information measured by the position information measuring unit to the server computer. Position transmitting means for transmitting to the server computer, when a certain field device is maintained, a result reporting means for transmitting the result to the server computer; and when a warning is received from the server computer, a warning output for outputting the fact. Means, the server computer grasps the position of the portable information terminal based on the received position information, and the portable information terminal Maintenance support system, wherein the away from the site prior to servicing the completion of the field devices in the scene when located, comprising means for notifying the warning to the portable information terminal. 4. When a plurality of field devices to be maintained are widely distributed at a plurality of sites, a server computer performs maintenance on a portable information terminal carried by a maintenance person from a server computer. A maintenance support system for supporting maintenance by transmitting information, wherein the portable information terminal includes: a position information measuring unit that measures a position of the portable information terminal; and a server computer that transmits position information measured by the position information measuring unit to the server computer. And a warning output means for outputting a warning when a warning is received from the server computer. The server computer grasps the position of the portable information terminal based on the received position information. And a means for notifying the portable information terminal of the warning when the portable information terminal approaches any site. Stem. 5. When a plurality of on-site devices to be maintained are widely distributed in a plurality of sites, a server computer performs maintenance on a portable information terminal carried by a maintenance person from a server computer. A maintenance support system that supports maintenance by transmitting information, wherein the server computer includes: a travel time storage unit that stores travel time information between each site in the plurality of sites; and two or more maintenance personnel. Path maintenance means for determining an inter-site movement route so as to minimize the total movement time when performing maintenance of the on-site equipment at the site, and transmission processing means for transmitting the inter-site movement route to the portable information terminal. A maintenance support system comprising: an output processing unit that displays the inter-site moving route received from the server computer. 6. When a plurality of on-site devices to be maintained are widely distributed in a plurality of sites, a server computer performs maintenance on a portable information terminal carried by a maintenance person from a server computer. A maintenance support system for supporting maintenance by transmitting information, wherein the portable information terminal includes: route information storage means for storing route information on a travel route between sites to be patrol; and a position for measuring its own position. Information measuring means, and the position information created by the position information measuring means, and comparing the route information, if the position of its own is out of the movement route, a warning output means to warn that fact A maintenance support system characterized by comprising: