JP2009271891A - Maintenance inspection support device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a maintenance inspection support device for accurately confirming places to be inspected during maintenance inspection in a plant and reducing operation mistakes. <P>SOLUTION: A radio base station 2 receives a signal from a radio terminal 1 belonging to a maintenance person assigned at a workplace, a plant data input part 4d collects information of a plant 7, and a location information determining part 4b specifies the current location of the maintenance person on the basis of the information of the plant 7 and the signal from the radio terminal 1. Further, a data processor 4 determines whether the maintenance person is located at a place to be inspected on the basis of the current location information of the maintenance person and inspection plan information obtained from an inspection plan information database d2. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention provides a maintenance / inspection work support device for identifying an inspection place at the time of an inspection work for a plant facility, and for assisting a maintenance worker who is performing field work based on the plant facility information and operation information and an operator on the central room side. It is about.

  In an inspection system using a conventional man location system, a GPS antenna that receives radio waves from a plurality of GPS satellites in the sky and a signal from the GPS antenna are carried in a portable box carried by a maintenance inspection worker as a moving body. A GPS receiver unit is provided for calculating the coordinates of the location of the mobile box based on the mobile phone, and on the other hand, a local computer network built in the plant facility management center as a fixed station is connected to a plurality of GPS satellites in the sky. A GPS antenna that receives radio waves and a D-GPS reception system that measures a GPS position error based on a signal from the GPS antenna are provided.

  Furthermore, a PHS terminal functioning as a communication unit can be attached to the mobile box, and the attached PHS terminal and the GPS receiving unit are connected by an infrared interface (for example, an IrDA interface). The PHS terminal is connected to the in-house LAN through the PHS communication line. The center computer connected to the in-house LAN is capable of accurately correcting the positional information sent through the PHS communication line and the GPS position error sent from the D-GPS receiving system. The position of a portable box, that is, a maintenance inspection worker was calculated (see Patent Document 1).

  In a conventional wireless communication system, a plurality of wireless base stations that relay wireless terminals and communication networks are installed everywhere in a certain area, and a telephone exchange that connects to these wireless base stations and controls them, A data processing device that is connected to a telephone exchange and processes data related to communication by a wireless terminal, and a wireless terminal that is under an area where a calling signal transmitted from a certain wireless base station reaches the receiving signal receives a response signal. In some cases, the position of the wireless terminal is detected on the data processing apparatus side (see Patent Document 2).

JP-A-10-115676 Japanese Patent Laid-Open No. 11-088937

  In the position detection system based on the conventional GPS or wireless communication system using the wireless terminal shown in Patent Documents 1 and 2, the current position of the maintenance staff is accurately calculated, and the maintenance staff can grasp the current position almost accurately. However, it cannot be determined whether or not the maintenance staff is present at the place to be inspected, and finally the maintenance staff himself confirms whether or not it exists at the place to be inspected by his / her own judgment. Therefore, there is a problem that it is not possible to eliminate an error in judgment due to misunderstanding or the like.

  In addition, when performing on-site inspection work without using a wireless terminal, the maintenance staff will judge from the characters displayed on the guide plate displayed on the site or on the nameplate attached to the facility, and for each facility. Since the inspection work was carried out by confirming the location and the inspection location by color-coding or by attaching a symbol mark, there was a possibility that the equipment target was mistaken in a plant having a plurality of similar facilities.

  The present invention has been made to solve the above-described problems, and can accurately confirm a place to be inspected at the time of maintenance inspection work in the plant, reduce operation mistakes, and maintainer. It is another object of the present invention to provide a maintenance / inspection work support device that can reduce the burden on the operator and operate the plant safely and stably.

  A maintenance / inspection work support apparatus according to the present invention includes a means for specifying a position of a wireless terminal carried by a maintenance person, a means for collecting plant arrangement information, a maintenance person based on the plant arrangement information and the position information of the wireless terminal. Based on the current position information and inspection plan information of the maintenance staff, the means for identifying the current position in the plant, the equipment to be inspected by the maintenance staff, the means for obtaining inspection plan information in which at least the date and time of the inspection are defined, A means for determining whether or not the maintenance staff is present at the location to be inspected and a means for transmitting the determination result of whether or not the maintenance staff is present at the location to be inspected to the wireless terminal. is there.

  According to the maintenance / inspection work support apparatus according to the present invention, based on the means for specifying the position of the wireless terminal carried by the maintenance staff, the means for collecting the arrangement information of the plant, the plant arrangement information, and the position information of the wireless terminal Means for identifying the current position of the maintenance staff in the plant, means for obtaining the inspection plan information in which at least the equipment to be inspected by the maintenance staff and the date and time of the inspection are defined, and the current position information and inspection plan information of the maintenance staff Based on the above, there are provided means for determining whether or not the maintenance staff is present at the location to be inspected, and means for transmitting the determination result of whether or not the maintenance staff is present at the location to be inspected to the wireless terminal Therefore, it is possible to accurately grasp the position of the maintenance staff, automatically detect the equipment to be inspected, and further perform the maintenance inspection work safely.

Embodiment 1 FIG.
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a maintenance / inspection work support apparatus according to Embodiment 1 of the present invention, and FIG. 2 is a flowchart for showing operations. In FIG. 1, a maintenance worker has a wireless terminal 1 composed of a mobile phone or a PHS that is generally used, and a specific wireless terminal 1 is registered exclusively for maintenance personnel in the plant.

  The maintenance staff goes to the site with the wireless terminal 1 and performs inspection work. The necessary number of multiple wireless base stations 2 are installed at the site, and the radio signal of the wireless terminal 1 received by the multiple wireless base stations 2 is input to the telephone exchange 3 and further identified from among them. The signal of the wireless terminal 1 is input to a signal conversion unit 4 a provided in the data processing device 4. The data processing device 4 is provided with a position information determination unit 4b and the like in addition to the signal conversion unit 4a.

  In determining the position of the maintenance staff, the position of the wireless terminal 1 on general position coordinates is specified based on a signal related to the position from the wireless terminal 1. Information on the plant 7 is input to the plant data input unit 4 d in the data processing device 4 via the plant data input device 6. Among the information of the plant 7, the position information determination unit 4b specifies the position of the wireless terminal 1 in the plant 7 based on the plant arrangement information and the specified position information of the wireless terminal 1, and the position display screen creation unit 4c. The display screen update information creation unit 4g generates display information indicating the position of the maintenance engineer in the plant 7 by combining with the position image information of the plant 7 created in the above.

  Here, the display information is displayed on the screens of the wireless terminal 1 and the display device 5, and for example, the current position of the maintenance staff displaying the position where the wireless terminal 1 exists in the surrounding layout information. Is shown. In the present invention, the current position of the maintenance staff in the site in the plant 7 is displayed. The display information is sent to the display device 5 provided in the central room or the like via the display screen output unit 4h and displayed, so that the operator can confirm. Here, the operator is in the central room and monitors the entire plant 7 while looking at the display device 5.

  Further, if necessary, a necessary message together with display information is transmitted via the signal conversion unit 4a, the telephone exchange 3 and the radio base station 2 via the signal transmission unit 4i from the display screen update information creation unit 4g to the radio terminal 1. A maintenance staff who is sent to the terminal 1 and is in the field can check it.

  Next, a detailed operation will be described with reference to FIG. In FIG. 2, after START (STEP 200), display processing of the main screen is performed based on the main screen database d1 (STEP 201). The display processing of the main screen relates to display on the display device 5 installed in the central room. First, the display device activation determination unit 4e first determines that the monitoring function of the maintenance / inspection work support device has been activated. Then, a screen creation function for displaying on the display device 5 is activated. The main screen creation unit 4f creates a main screen as a base to be displayed on the display device 5 by receiving the activation signal from the display device activation determination unit 4e. Here, the main screen refers to, for example, a screen that is a large frame of the display device 5 such as a layout diagram of the entire plant, an operation state indicating the generated power and operation mode of the plant, and the like.

  Then, the plant data is input to the plant data input unit 4d (STEP 202), the main screen is updated and displayed based on the input plant data (STEP 203), the main screen is displayed based on the main screen database d1, and the operation is performed. Waiting for an operation request from a worker (STEP 204).

  The operation of returning to STEP 202 is repeated until there is an operation request from the operator, and monitoring is terminated by the operator's monitoring end request (STEP 205). When information from the wireless terminal 1 is input, information on the wireless terminal 1 in the field is input to the data processing device 4 (STEP 206), and inspection plan information is input from the inspection plan information database d2 (STEP 207). . Here, the inspection plan information is information in which at least the equipment to be inspected by maintenance personnel and the date and time of inspection are defined.

  The plant arrangement is read from the plant arrangement database d3 created based on the input plant data, and the position information determination unit 4b determines the current position of the wireless terminal 1 based on the information of the wireless terminal 1 and the plant arrangement information. (STEP208). When the current position of the wireless terminal 1 in the plant 7 is specified, the display screen update information creation unit 4g generates display information as described above, and this display information is transmitted to the wireless terminal 1, and the wireless terminal 1 displays the display information. Enter information.

  Then, the maintenance / inspection work support device determines whether or not the current position of the wireless terminal 1 is in a place to be inspected based on the inspection plan information, and displays image information indicating whether or not the wireless terminal 1 is in a place to be inspected. 1 is transmitted (STEP 209). Further, the maintenance / inspection work support apparatus inputs position information from the wireless terminal 1 (STEP 210), and the maintenance / inspection work support apparatus performs update display processing of the equipment inspection permission screen based on the position information of the wireless terminal 1, and the wireless terminal. If the position of 1 is in a place to be inspected, an equipment inspection permission screen (permission signal) is transmitted to the wireless terminal 1 (STEP 211).

  That is, the maintenance / inspection work support apparatus determines the position of the maintenance person from the position of the wireless terminal 1, and the maintenance person has entered the target area to be inspected based on the plant arrangement database d3 and the facility operation information database d4. Judging. Also, if you are not in the specified area, you may accidentally stop other equipment in operation and stop it by mistake. Each time, the equipment inspection permission screen is updated and displayed based on the position information of the wireless terminal 1 and the equipment inspection permission screen is transmitted to the wireless terminal 1 each time.

  The above operation is continued until it is stopped by an operation request from the operator (STEP 212). When there is an operation request from the operator, new plant information is input (STEP 213), and the state is determined (STEP 214). Here, the state determination means reading the plant operation state signal, etc., making a determination based on the position screen of the maintenance staff that was being monitored, and performing other equipment inspections when other equipment needs to be inspected It means to judge. If another facility is selected, the process returns to STEP 208, and if not selected, the process returns to the main screen selection of STEP 201.

  According to the present embodiment, the maintenance / inspection work support device identifies the position of the wireless terminal 1 based on the radio wave transmitted from the wireless terminal 1, and enters the current position of the wireless terminal 1 and the region to be inspected. Can be displayed on the wireless terminal 1, so that the maintenance staff can easily confirm the inspection target area.

  In addition, the position information from the wireless terminal 1, the plant position information, and the equipment status information can be displayed to the maintenance staff that they are located at an appropriate location for the inspection work. Can be avoided.

  Furthermore, from the position information by the wireless terminal 1, the position information of the plant, and the equipment state information, the position of the maintenance staff and the state of the plant are displayed together on the display device 5 in the central room that supervises the whole, and the maintenance staff is placed in an appropriate place. Since it can confirm that it is located, it can prevent the operator in a center room from making incorrect operation at the time of plant operation operation.

  Also, by registering the inspection equipment in advance, the maintenance staff can determine that they are at the place to be inspected, and can inspect the necessary equipment, knowing the equipment layout in the plant 7 well. Even if it is not an experienced veteran, the position can be easily grasped, the inspection work becomes efficient, and the reliability of the plant 7 is improved.

  Furthermore, by registering the wireless terminal 1 possessed by the maintenance staff in the data processing device 4 in advance, the current position of the maintenance staff within the plant 7 can be grasped on the central room side, and safety in operation is ensured. In addition, the communication between the maintenance staff on the site side and the operator on the central room side can be facilitated. In the above description, the case where the position of the maintenance person is specified by the wireless terminal 1 has been described, but the position may be specified by other means such as a PHS terminal.

Embodiment 2. FIG.
FIG. 3 is a flowchart showing the operation of the maintenance / inspection work support apparatus according to Embodiment 2 of the present invention. In the first embodiment, a case has been described in which the position of the wireless terminal 1 is determined so that the maintenance staff determines whether or not his / her position is at a location to be inspected. If the position is determined and the place is not the place to be inspected, a means for indicating to the maintenance staff the direction of movement from the current position to the place where the inspection facility is located is provided. It is the same as shown in.

  In FIG. 3, the operation from the main screen display of STEP 201 to the inspection plan information input of STEP 207 is the same as in the first embodiment. Based on the position information from the wireless terminal 1 and the information from the plant arrangement database d3, it is determined whether or not the current position is at a place to be inspected (STEP 301). The movement direction to the inspection area is calculated from the information in the plant arrangement database d3, and the movement direction information is transmitted to the wireless terminal 1 (STEP 302).

  Since the maintenance staff with the wireless terminal 1 moves, the information of the wireless terminal 1 is inputted one by one with the passage of time (STEP 303), and it is determined from the position information whether it is in a place to be inspected (STEP 304), This determination result is sent to the wireless terminal 1 as data, and the position information is updated each time. If the position of the wireless terminal 1 is other than the place to be inspected, the moving direction to the target position is calculated, and the moving direction is displayed on the wireless terminal 1 and instructed.

  After transmitting a signal to the wireless terminal 1, it is determined whether or not there is an operation request from the operator (STEP 212). If there is no operation request from the operator, the process returns to STEP 303, and if there is an operation request, new plant information is input. (STEP213).

Embodiment 3 FIG.
FIG. 4 is a flowchart showing the operation of the maintenance / inspection work support apparatus according to Embodiment 3 of the present invention. In the first embodiment, a case has been described in which the position of the wireless terminal 1 is determined so that the maintenance staff determines whether or not his / her position is at a location to be inspected. The position is determined, and information about the maintenance staff having the wireless terminal 1 is displayed on the display device 5 as information to the operator in the central room. The maintenance / inspection work support device itself is shown in FIG. Is the same.

  In FIG. 4, the operations from the main screen display of STEP 201 to the determination of the position of the wireless terminal 1 of STEP 208 are the same as those in the first embodiment. When the position of the wireless terminal 1 is specified, information on maintenance personnel who have the wireless terminal 1 on the display device 5 in the central room, for example, the name / group name, the work subject to be executed, and the position information of the wireless terminal 1 are displayed. Send and display (STEP401).

  As a result, the operator in the central room can collate the information on the maintenance staff transmitted from the wireless terminal 1 while checking the information on the maintenance staff stored in advance, which is suitable for the maintenance staff to check. Therefore, it is possible to prevent an erroneous operation from being performed, and it is possible to easily grasp the status of maintenance and inspection work for the entire plant. Further, the position information of the wireless terminal 1 is input as time passes (STEP 402), and the position display of the wireless terminal 1 is updated (STEP 403). Other operations are the same as those in the first embodiment.

Embodiment 4 FIG.
FIG. 5 is a flowchart showing the operation of the maintenance / inspection work support apparatus according to Embodiment 4 of the present invention. In the third embodiment, the position determination of the wireless terminal 1 is described with respect to the determination of whether the position of the maintenance staff is within the inspection area and the information display of the maintenance staff. In this embodiment, the position of the wireless terminal 1 is described. The maintenance inspection support device automatically checks the position of the maintenance staff who has the wireless terminal 1 and the information registered in advance, and performs on-site management of equipment at the site. The maintenance / inspection work support device itself is the same as that shown in FIG.

  In FIG. 5, “main screen display” in STEP 201 to “radio terminal position determination based on wireless terminal information and plant arrangement DB” in STEP 208 is the same flow as in the third embodiment. When the position of the wireless terminal 1 is specified, the position information of the wireless terminal 1 is transmitted and displayed on the display device 5 in the central room (STEP 501). Further, the position information of the wireless terminal 1 is input as time passes (STEP 502), the position display of the wireless terminal 1 is updated (STEP 503), and it is determined whether or not there is an operation request from the operator (STEP 504). .

  When there is an operation request from the operator, the maintenance inspection support device collates the position of the maintenance worker who has the wireless terminal 1 with the information registered in advance as the inspection target input from the plant data input device 6. If the maintenance staff has reached the area where the necessary equipment to be inspected has been reached, a specific area permission signal is output (STEP 506), and the locks such as doors that block the area from the outside are released. As a result, management can be performed so that only a specific person is placed in the facility or the fence surrounding the facility. Other flows are the same as those in the first embodiment.

  According to the present embodiment, the facility having the means for storing data relating to maintenance personnel capable of inspecting the facilities, the means for specifying the maintenance personnel by the wireless terminal 1 carried by the maintenance personnel, and the facility having means for shutting off from the outside are inspected plan information. If there is a maintenance person in the facility who can inspect the facility at the date and time of inspection in the inspection plan information, a means for releasing the means for shutting off the equipment from outside is provided. The room key is managed so that it can be put into the inspection area only occasionally. A fence surrounding the certain area is provided, and the lock is released with the permission of the person in charge. Only the maintenance staff having the registered wireless terminal 1 can enter, and the reliability and safety of the plant 7 can be ensured.

Embodiment 5 FIG.
FIG. 6 is a flowchart showing the operation of the maintenance / inspection work support apparatus according to Embodiment 5 of the present invention. In the first embodiment, a case has been described in which the position of the wireless terminal 1 is determined so that the maintenance staff determines whether or not his / her position is at a location to be inspected. In the present embodiment, the wireless terminal 1 is described. In addition, the operator in the central room confirms the position of the maintenance staff holding the wireless terminal 1 by means of the display device 5, confirms the status of the work, and checks the equipment on the site. The maintenance / inspection work support device itself is the same as that shown in FIG.

  In FIG. 6, the operation from the display of the main screen of STEP 201 to the determination of the position of the wireless terminal 1 of STEP 208 is the same as that of the first embodiment. When the position of the wireless terminal 1 is specified, the position information of the wireless terminal 1 is transmitted and displayed on the display device 5 in the central room (STEP 601).

  The operator in the central room receives information on the position of a specific authorized maintenance person and whether the maintenance person is performing the inspection work or has completed the work (STEP 602). By displaying the position information and whether or not the driving operation is possible (STEP 603), it becomes possible to manage the equipment to be inspected. In addition, when the operation of the facility is resumed, it is possible to confirm whether the maintenance staff has moved to a safe area. Other operations are the same as those in the first embodiment.

  Even if the operation of the equipment is stopped during the inspection, an operation permission signal for restarting the equipment after the inspection is completed based on the work end signal sent from the maintenance staff who performed the work on site. The operator in the central room can recognize that the operating environment has been prepared.

Embodiment 6 FIG.
FIG. 7 is a flowchart showing the operation of the maintenance / inspection work support apparatus according to Embodiment 6 of the present invention. In the fifth embodiment, the position of the wireless terminal 1 is determined, so that the maintenance staff determines whether his / her position is in a place to be inspected and manages the work execution state. In the form, when a disaster such as a fire or steam leak occurs during inspection work, etc., the position of the wireless terminal 1 is determined, and information is communicated from the operator in the central room to the maintenance staff in the field. The configuration of the maintenance / inspection work support apparatus is the same as that shown in FIG.

  In FIG. 7, the process from the main screen display of STEP 201 to the input of the wireless terminal 1 information of STEP 206 is the same as that of the first embodiment. When an abnormality occurs in the plant 7, it is determined whether or not there is a maintenance worker in a specific area where danger is expected, and an abnormal condition alarm is issued to a maintenance person in the specific area where danger is expected And evacuation guidance from the current position to a safe place.

  When the plant abnormality occurrence information is input based on the plant warning database d5 (STEP 701), the maintenance / inspection work support device determines the position of the wireless terminal 1 in the plant 7 from the position information of each wireless terminal 1 and the plant arrangement database d3. At the same time, it is determined whether or not the area requires evacuation (STEP 702), and an abnormality notification signal is transmitted to maintenance personnel in the area requiring evacuation (STEP 703). Further, new location information of the wireless terminal 1 is input as time passes (STEP 704), and the evacuation direction and route in a safer direction are displayed for each wireless terminal 1 (STEP 705). Other operations are the same as those in the first embodiment.

It is a block block diagram which shows the maintenance inspection work assistance apparatus by Embodiment 1 of this invention. It is a flowchart which shows operation | movement of the maintenance inspection work assistance apparatus by Embodiment 1 of this invention. It is a flowchart which shows operation | movement of the maintenance inspection work assistance apparatus by Embodiment 2 of this invention. It is a flowchart which shows operation | movement of the maintenance inspection work assistance apparatus by Embodiment 3 of this invention. It is a flowchart which shows operation | movement of the maintenance inspection work assistance apparatus by Embodiment 4 of this invention. It is a flowchart which shows operation | movement of the maintenance inspection work assistance apparatus by Embodiment 5 of this invention. It is a flowchart which shows operation | movement of the maintenance inspection work assistance apparatus by Embodiment 6 of this invention.

Explanation of symbols

  1 wireless terminal, 5 display device, 7 plant.

Claims (6)

Means for identifying the location of the wireless terminal carried by the maintenance staff;
Means for collecting plant location information;
Means for identifying the current position of the maintenance staff in the plant based on the plant arrangement information and the position information of the wireless terminal;
Means for obtaining inspection plan information in which at least the equipment to be inspected by the maintenance staff and the date and time of inspection are defined;
Means for determining whether or not the maintenance staff is present at a location to be inspected based on the current position information of the maintenance staff and the inspection plan information;
A maintenance / inspection work support apparatus, comprising: means for transmitting a determination result of whether or not the maintenance staff is present at the location to be inspected to the wireless terminal.   2. The means for transmitting to the wireless terminal a moving direction from the current position to the place to be inspected when the current position of the maintenance staff is outside the place to be inspected. Maintenance inspection work support equipment. Means for storing information on the maintenance personnel;
The maintenance inspection work support apparatus according to claim 1 or 2, wherein means for transmitting information related to the maintenance staff is provided on a display device that displays a screen for monitoring the entire plant. Means for storing data relating to the maintenance personnel capable of inspecting the equipment;
Means for identifying the maintenance staff by the wireless terminal carried by the maintenance staff;
When the equipment having means for shutting off from the outside is equipment to be inspected in the inspection plan information, and the maintenance staff who can inspect the equipment at the date and time of inspection in the inspection plan information is in the equipment, the above 4. The maintenance / inspection work support apparatus according to claim 3, further comprising means for releasing means for shutting off the facility from the outside.   4. The maintenance / inspection work support apparatus according to claim 3, further comprising means for displaying an inspection work end signal transmitted from the wireless terminal on the display device.   When an abnormality occurs in the plant, there is provided means for transmitting an abnormality occurrence notification signal to the wireless terminal existing in an area where evacuation is required and a notification signal indicating an evacuation route in a safe direction from the position of the wireless terminal. The maintenance / inspection work support apparatus according to claim 1, wherein the maintenance / inspection work support apparatus is provided.

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