JP2021026643A - Process control system and process control method - Google Patents

Abstract

To provide a process management technique which allows a user to review an area application plan or work process.SOLUTION: A process management system 10 comprises: an area identification processing unit 27 which identifies each of management object areas 8 obtained by dividing a target facility 1 being the target of the work into the plurality of management object areas 8; an area information applying unit 28 which sets at least one of the plurality of management object areas 8 as a storage area that stores a waste matter on the basis of plan information 35 including a storage plan for the waste matter generated in the target facility 1; an area state processing unit 29 which processes progress information 37 including the generation amount of the waste matter to be stored in the storage area; an area specification unit 30 which specifies the storage area in which the generation amount of the waste matter based on the progress information 37 becomes equal to or greater than an upper limit prescribed value of a storage amount previously determined in the plan information 35; and a state display unit 31 which displays the storage area whose storage amount is equal to or greater than the upper limit prescribed value in an identifiable manner.SELECTED DRAWING: Figure 4

Description

Embodiments of the present invention relate to process control systems and process control methods.

Conventionally, as a technique related to management of a predetermined work process, including decommissioning of a nuclear power plant, for example, a technique for creating a drawing capable of grasping a work schedule over time is known.

JP-A-2018-142146

In the decommissioning of nuclear power plants, equipment such as nuclear reactors or pipes will be dismantled. Since these devices are contaminated or activated with radioactive materials, dismantled materials must be managed and stored as radioactive waste. In addition, the dismantling work of the equipment must be carried out indoors or on the premises where the handling of radioactive materials is permitted in order to prevent the radioactive materials from scattering into the surrounding environment. However, there are not many places where radioactive waste can be handled or stored other than nuclear facilities. Even if the decommissioning is started, it is expected that the storage location is undecided. Therefore, in the decommissioning, the reactor building will be used as a facility to prevent the diffusion of radioactive materials during work, as well as an area for dismantling equipment, storing dismantled items in storage containers, and temporarily storing them. It is being considered to utilize it.

Equipment to be dismantled is densely placed in the reactor building, and there is little vacant space. Therefore, in order to promote decommissioning efficiently, it is important to secure an implementation area for each process, such as a space for dismantling work and a space for storing waste. If these areas cannot be secured, the process will not proceed and decommissioning will be delayed. Therefore, in order to proceed with decommissioning within a limited area without delay, grasp the situation of each area according to each process, and if there is a possibility that each process will be delayed due to the progress of each area, the area will be early. There is a request to review the usage plan or work process of.

An embodiment of the present invention has been made in consideration of such circumstances, and an object of the present invention is to provide a process management technique capable of reviewing an area use plan or a work process.

In the process control system according to the embodiment of the present invention, the target facility to be worked on is divided into a plurality of controlled areas, and the area identification processing unit that identifies each controlled area and the target facility generate the same. An area information assigning unit that sets at least one of the plurality of managed areas as a storage area in which the waste is stored based on the plan information including the waste storage plan, and a storage area scheduled to be stored in the storage area. The area status processing unit that processes progress information including the amount of waste generated, and the above-mentioned that the amount of waste generated based on the progress information is equal to or greater than the upper limit specified value of the storage amount predetermined in the plan information. An area specifying unit for specifying a storage area and a status display unit for displaying the storage area in which the storage amount is equal to or greater than the upper limit specified value in an identifiable manner are provided.

An embodiment of the present invention provides a process management technique capable of reviewing an area use plan or a work process.

Sectional view showing the nuclear facilities subject to decommissioning. A sketch showing the first floor of the turbine building. A block diagram showing a process control system. A block diagram showing a process control computer. Explanatory drawing which shows the area management table. Explanatory drawing which shows the area management table of a modification. Explanatory drawing which shows the waste management table. A screen view showing a process control screen. A flowchart showing the main control process executed by the process control computer. A flowchart showing an initial registration process executed by a process control computer. Process management A flowchart showing a process control process executed by a computer. Process management A flowchart showing a process control process executed by a computer. Process management A flowchart showing a process control process executed by a computer.

Hereinafter, embodiments of the process control system and the process control method will be described in detail with reference to the drawings.

Reference numeral 1 in FIG. 1 is a nuclear facility as a target facility of the present embodiment. This nuclear facility 1 is, for example, a nuclear power plant. The nuclear facility 1 includes a reactor building 2 and a turbine building 3.

The reactor building 2 is a concrete building that houses the main equipment of the reactor 4. The reactor building 2 houses the reactor pressure vessel 5, the reactor containment vessel 6, and other equipment 7, and prevents the leakage of radioactive materials to the outside in the unlikely event of an accident in the reactor 4. It is a robust building. The turbine building 3 is a concrete building that houses equipment 7 such as a turbine, a generator, and a condenser.

In addition to the reactor building 2 and the turbine building 3, the nuclear facility 1 includes the surrounding site and ancillary buildings.

Nuclear facility 1 that has been put into operation is subject to decommissioning. The decommissioning measure is a measure that makes the nuclear facility 1 inoperable again. For example, operations such as carrying out nuclear fuel, dismantling equipment, removing contamination by radioactive substances adhering to equipment, and removing activated parts are included. These operations will be carried out in compliance with radiation regulations (decrees). Furthermore, it is necessary to prevent the diffusion of radioactive materials remaining in the nuclear facility 1 into the surrounding environment and reduce the risk of radiation exposure of workers to a safe and rational level. This decommissioning may last for a long period of about 20 to 30 years.

In this decommissioning, decontamination and dismantling work of contaminated or activated reactor 4 or equipment such as piping will be carried out. These operations need to be performed inside the nuclear facility 1 where the handling of radioactive materials is permitted. In this embodiment, an embodiment in which decontamination work and dismantling work are carried out inside the reactor building 2 and the turbine building 3 will be illustrated.

In addition, decommissioning will generate a large amount of radioactively contaminated waste. However, in Japan, the system for disposing of waste and the delivery standard from the place of generation have not been established, and it is difficult to promptly discharge the waste from the nuclear facility 1. Although it is planned to dispose of waste at an appropriate disposal site in the future, an appropriate disposal site has not been completed at this time. Therefore, until the disposal site is completed, the waste generated by the decommissioning is stored inside the nuclear facility 1. This storage will occur during the decommissioning and will continue after the decommissioning is completed. That is, the storage of waste may last for a long period of about 20 to 30 years or more.

As described above, in the decommissioning, the decontamination work or the demolition work and the storage of the waste generated by these works must be performed at the same time inside the reactor building 2 and the turbine building 3. However, the size of the internal space of the reactor building 2 and the turbine building 3 is limited. Given such space restrictions, it is necessary to perform decontamination work or demolition work and waste storage, but work planning and use of the internal space of buildings 2 and 3 as the work progresses. If the situation is poorly managed, there are concerns about the effects of delays in the overall process.

For example, even if waste is generated in the decontamination work or the dismantling work, if there is no space for storing the waste, there is no transfer destination for the waste, and as a result, the decontamination work or the dismantling work is delayed. In addition, if the storage space is set excessively, the space for decontamination work or dismantling work is reduced, and as a result, these works are delayed. In addition, even if the work process is created by predicting the amount of waste generated by decontamination work or demolition work before the start of decommissioning, the amount of waste is expected when the decommissioning is actually carried out. It may be different. When such a situation different from the expectation occurs, if the manager can grasp the situation at an early stage, the decommissioning can be smoothly proceeded. The process control system and process control method of the present embodiment can solve such a problem.

As shown in FIG. 1, the reactor building 2 and the turbine building 3 are divided into a plurality of layers. For example, it is assumed that the reactor building 2 has 1 basement floor to 6 floors above ground, and the turbine building 3 has 1 floor above ground to 5 floors above ground. In the present embodiment, each layer is divided into a plurality of managed areas, and each managed area is divided into a "demolition area" for dismantling work, a "treatment area" for decontamination work, and a "storage" for storing waste. Set to "Area". In this way, each managed area is set as a predetermined type of area according to each use. These types of areas are set according to each period of decommissioning. That is, even in the same managed area, the type (use) of the area may be changed during the decommissioning period. Furthermore, if there is an expansion of the building or site for decommissioning, those facilities may be included.

In the present embodiment, only three types of areas, a dismantling area, a processing area, and a storage area, are illustrated to aid understanding, but areas other than these types may be set. In addition, dismantling work and decontamination work may be performed at the same time. That is, the dismantling work in the dismantling area may include the decontamination work, and the decontamination work in the treatment area may include the dismantling work. These operations include melting, grinding and chemical processing. In addition, the work of storing the waste generated by these treatments in a container is also included in the dismantling work or the decontamination work.

Further, in the present embodiment, the reactor building 2 and the turbine building 3 are used as a “storage area” for storing waste without dismantling. That is, an example is an example in which a "storage area" is set by utilizing a building that has been constructed in advance as a building capable of storing radioactive substances. In addition, other forms may be used. For example, if there is a building that can be set as a "storage area" other than the reactor building 2 and the turbine building 3, the reactor building 2 and the turbine building 3 may be dismantled.

In the following description, the object to be dismantled is referred to as a dismantled object. In addition, substances to be decontaminated are referred to as radioactive contaminants. Radioactive contaminants include those with radioactive substances attached and those that have been activated by exposure to radiation for many years. These dismantled objects and radioactive contaminants include various devices 7 such as a reactor 4, a reactor pressure vessel 5, a reactor containment vessel 6, a turbine, a condenser, a pipe, a valve, and a pump.

In addition, the waste to be stored includes a form in which the demolition material or the radioactive contamination is contained in an appropriate container. The waste may be an object to be disassembled or a radioactive contaminant that is not contained in the container. For example, it may be in a state after the object to be disassembled is disassembled. Further, the waste has a relatively high level of radioactive contamination (hereinafter referred to as "L1 level"), a level lower than the L1 level (hereinafter referred to as "L2 level"), and a level higher than the L2 level. Also includes those with a low level (hereinafter referred to as "L3 level") and those that are even lower than the L3 level and satisfy the clearance level. In addition, general uncontaminated waste may be transferred to the outside of the nuclear facility 1 for treatment. In addition, the waste includes not only a form in which the disassembled material is stored in a container, but also a waste product in which a resin generated by chemical treatment is stored in a container and hardened.

FIG. 2 illustrates a sketch of the first floor of the turbine building 3. For example, one floor is divided into a plurality of rooms. Each of these rooms is classified as a managed area 8, and each managed area 8 is assigned an area number (area ID) as identifiable area identification information. The area number is assigned based on the unique conditions of the nuclear facility 1.

For example, the first floor of the turbine building 3 is divided into five managed areas 8 from "T-1-a" to "T-1-e". At the initial stage of decommissioning, equipment 7 as a demolition object to be dismantled is installed in each controlled area 8 on the first floor of the turbine building 3. Therefore, these managed areas 8 are set as processing areas or dismantling areas.

For example, it is assumed that the large equipment 7 is installed in the controlled area 8 of "T-1-a", which is the widest on the first floor of the turbine building 3. This device 7 has a high level of radioactive contamination. Therefore, when making a decommissioning plan, the controlled area 8 of “T-1-a” is set as a processing area for decontamination work at the initial stage of decommissioning. Then, in the middle of the decommissioning, the managed area 8 of "T-1-a" is set as a dismantling area for dismantling the device 7. The device 7 is disassembled and transferred from the controlled area 8 of "T-1-a" to another area. Since the device 7 will be removed in the latter half of the decommissioning, the managed area 8 of this "T-1-a" will be set as a storage area. Then, it is used for storing waste transferred from other areas.

When a structure such as a wall forming a plurality of rooms is removed or newly added, the setting of the managed area 8 is changed. The type (use) of the area is also reset according to the change in the setting of the managed area 8. Further, the type (use) of the area may be reset according to the change of the object to be disassembled or the radioactive contaminant arranged in the controlled area 8.

Next, the system configuration of the process control system 10 of the present embodiment will be described with reference to the block diagrams shown in FIGS. 3 and 4. In the block diagrams of FIGS. 3 and 4, only the main flow of information is shown by arrows, but there may be a flow of information other than these illustrated arrows.

As shown in FIG. 3, the process management system 10 includes a process management computer 11 for managing the decommissioning work process, a mobile terminal for workers 12, a two-dimensional code reading unit 13, a non-contact communication unit 14, and the non-contact communication unit 14. It includes a wireless communication unit 15 and management tags 16, 17, and 18.

The process management computer 11 is a computer handled by a manager who manages the process. For example, it may be a desktop PC or a notebook PC.

The worker's mobile terminal 12 is a terminal carried by the worker, and is composed of devices such as a smartphone, a wearable computer (smart glasses) provided with a transmissive head-mounted display, a tablet PC, and a notebook PC. In addition, it is composed of devices having a shooting function, a call function, and a communication function, and may be composed of a plurality of devices having each function.

The mobile terminal 12 for workers is connected to the process management computer 11 and can exchange information in both directions. The worker can check the process chart using the worker's mobile terminal 12 and transmit various information acquired at the work site to the process management computer 11.

The management tags 16, 17, and 18 are attached to the waste. These control tags 16, 17, and 18 are included in the process control system 10. In addition, various types of management tags 16, 17, and 18 are used properly according to the waste to be attached. For example, the first-class management tag 16 includes a two-dimensional code 19. The type 2 management tag 17 includes an RFID chip 20. The third-class management tag 18 includes a satellite positioning unit 21 and a communication unit 22.

The two-dimensional code 19 of the first-class management tag 16 is a display-type code printed on a predetermined medium and having information in the horizontal direction and the vertical direction. In this embodiment, a matrix type cord in which small squares are arranged vertically and horizontally is used. The two-dimensional code 19 of the first-class management tag 16 is read by the two-dimensional code reading unit 13 (portable terminal for scanner) possessed by the operator. Each two-dimensional code 19 includes a tag ID as waste identification information capable of identifying the corresponding waste.

The operator uses the two-dimensional code reading unit 13 at the work site to read the two-dimensional code 19 of the first-class management tag 16. Then, the information including the tag ID read by the two-dimensional code reading unit 13 is transmitted to the process management computer 11. Here, in association with the tag ID, information including the position where the reading was performed, the place where the waste is generated, the form of the waste, the weight of the waste, the radioactive contamination level, etc. is transmitted to the process management computer 11. Will be done.

The RFID chip 20 of the second-class management tag 17 uses so-called RFID (Radio Frequency Identification) technology for exchanging information by short-range (several cm to several m) wireless communication using electromagnetic waves or radio waves. It is a chip to do. The RFID chip 20 of the second-class management tag 17 is read by the non-contact communication unit 14 (RFID reader terminal) possessed by the operator. A tag ID as waste identification information that can identify the corresponding waste is registered in each RFID chip 20.

The operator uses the non-contact communication unit 14 at the work site to read the registration information of the RFID chip 20 of the type 2 management tag 17. Then, the information including the tag ID read by the non-contact communication unit 14 is transmitted to the process management computer 11. Here, in association with the tag ID, information including the position where the reading was performed, the place where the waste is generated, the form of the waste, the weight of the waste, the radioactive contamination level, etc. is transmitted to the process management computer 11. Will be done.

The third-class management tag 18 is mainly attached to waste stored in a storage area set outdoors. The satellite positioning unit 21 of the type 3 management tag 18 measures the position using a signal transmitted from the artificial satellite. Then, the information indicating the position acquired by the satellite positioning unit 21 is transmitted to the process management computer 11 via the communication unit 22. For example, in the storage area where the waste to which the type 3 management tag 18 is attached is stored, a wireless communication unit 15 that performs wireless communication with the type 3 management tag 18 is installed. Information is sent to the process management computer 11 via the wireless communication unit 15.

Here, the information transmitted by the communication unit 22 includes the tag ID. That is, the position where the reading is performed is transmitted in association with the tag ID. In addition, the transmitted information may include the location of waste generation, the form of waste, the weight of waste, the level of radioactive contamination, and the like.

By managing the waste with the management tags 16, 17, and 18, the operator can obtain information such as the source, capacity, and radioactive contamination level of the waste at the site without opening the container containing the waste. You can check with.

As shown in FIG. 4, the process management computer 11 includes a main control unit 23, an information input unit 24, a communication unit 25, a timekeeping unit 26, an area identification processing unit 27, an area information giving unit 28, an area status processing unit 29, and an area. It includes a specific unit 30, a status display unit 31, a plan management database 32, and a progress management database 33. These are realized by executing the program stored in the memory or the HDD by the CPU.

The main control unit 23 comprehensively controls the process management computer 11.

Predetermined information is input to the information input unit 24 according to the operation of the administrator who manages the process. The information input unit 24 includes an input device such as a mouse or a keyboard. That is, predetermined information is input to the information input unit 24 according to the operation of these input devices. Further, when the administrator specifies the date and time, the date and time is input to the information input unit 24.

The communication unit 25 communicates with the mobile terminal 12 for workers, the two-dimensional code reading unit 13, the non-contact communication unit 14, and the wireless communication unit 15 via a communication line. For these communications, a wired communication line may be used, or a wireless communication line may be used. Further, each terminal may be connected to the process management computer 11 to perform communication. The communication unit 25 of the process management computer 11 may be mounted on a predetermined network device, for example, a wireless LAN access point or an antenna. The communication unit 25 may communicate with each terminal via a WAN (Wide Area Network), an Internet line, or a mobile communication network.

The timekeeping unit 26 (RTC: Real-Time Clock) measures the passage of time. For example, time information indicating the current time and calendar information indicating the date and the day of the week are output. Further, the timekeeping unit 26 may be provided with a timer function for accumulating the time from the predetermined start time to the predetermined end time.

The area identification processing unit 27 identifies each managed area 8 based on the area number as the area identification information.

The area information giving unit 28 sets a "storage area", a "disassembly area", or a "processing area" in each managed area 8 according to the intended use. For example, at least one of the plurality of controlled areas 8 is set as a storage area where waste is stored based on the design information 34 or the plan information 35. Further, at least one of the plurality of managed areas 8 is set as a dismantling area for performing dismantling work of the dismantled object based on the design information 34 or the plan information 35. Further, at least one of the plurality of controlled areas 8 is set as a treatment area for decontaminating radioactive contaminants based on the design information 34 or the plan information 35.

Further, the area information giving unit 28 accepts a change in the setting of the storage area according to a change in the actual amount of waste generated. In this way, the storage area can be increased when the actual amount of waste generated is large, and the storage area can be reduced when the actual amount of waste generated is small. Therefore, the nuclear facility 1 having a limited area can be effectively used.

Further, the area information giving unit 28 accepts a change in the setting of the “storage area”, the “demolition area”, or the “processing area” for the predetermined managed area 8 according to the progress of the work. The setting of the managed area 8 (change of design information 34 or plan information 35) may be changed by input by the administrator or may be changed automatically.

For example, when the work such as dismantling the equipment 7, dismantling the pillars of the building, and carrying out the dismantled object progresses, the amount of equipment in the area, the area floor load capacity, the area dimensions, the amount of incidental equipment in the area Etc. increase or decrease. Here, when these items increase or decrease, the work contents that can be performed in the area, the amount of waste that can be stored, and the like also increase or decrease. Therefore, the area information giving unit 28 accepts a change in the area setting according to the progress of the work. That is, the design information of the plan management database is changed as the work progresses.

The change in the setting of the controlled area 8 includes the change in the classification of the nuclear facility 1. That is, the dimensions, area, height, volume, floor, floor load, etc. of the controlled area 8 may be changed according to the progress of the work.

Further, the area information giving unit 28 accepts a change in the plan information 35 of the plan management database 32 based on the update of the progress information 37 of the progress management database 33. In this way, the work results can be fed back to the plan management database 32. The area setting may be changed by this feedback.

For example, when the device 7 arranged in the predetermined controlled area 8 is removed, when the progress information 37 indicating that the device 7 has been removed is input to the progress management database 33, the plan management database 32 Change the plan information 35. This change may be made automatically or at the input of the administrator. For example, the status display unit 31 may display a selection item on the display as to whether or not to change the plan information 35 of the plan management database 32, and the administrator may select whether or not to change the plan information 35 based on the selection items.

The area status processing unit 29 processes the process of the managed area 8 to which the progress information 37 corresponds, based on the progress information 37 indicating the status of the site actually acquired at the work site. In addition, the area status processing unit 29 processes progress information 37 including the amount of waste to be stored in the storage area. Further, the area status processing unit 29 specifies at least the position of the waste based on the management tags 16, 17, and 18. In this way, the management tags 16, 17, and 18 can be used to track the waste.

In addition, the area status processing unit 29 processes progress information 37 including the amount of waste generated by the dismantling work corresponding to the dismantling area. In this way, it is possible to grasp the dismantling work of the object to be dismantled and the amount of waste generated by this work.

In addition, the area status processing unit 29 processes progress information 37 including the amount of waste generated by the decontamination work associated with the processing area. In this way, it is possible to grasp the decontamination work of radioactive contaminants and the amount of waste generated by this work.

Further, the area status processing unit 29 processes the initial position of the object related to the work, the form of the object, and the transfer destination of the waste generated by the work in association with the managed area 8. In this way, since the objects related to the work, the contents of the work, and the managed area related to the work are linked, the objects related to the work can be tracked.

When managing the work process, the area specifying unit 30 identifies the managed area 8 that needs to review the usage plan or the work process of the area, that is, the managed area 8 that needs to notify the administrator. To do.

The status display unit 31 includes a display device such as a display provided in the process management computer 11. That is, the status display unit 31 controls the image displayed on the display. The display may be separate from the computer body or may be integrated. The status display unit 31 of the present embodiment mainly displays the process control screen 60 (see FIG. 8).

In this embodiment, a display is exemplified as a display device, but other aspects may be used. For example, information may be displayed using a projector. Further, a printer that prints information on a paper medium may be used instead of the display.

As shown in FIG. 4, the design information 34, the plan information 35, and the management table 36 are registered (stored) in the plan management database 32. The design information 34, the plan information 35, and the management table 36 are registered in advance before the start of decommissioning. In addition, the registration details will be updated in response to changes in the plan during decommissioning. Further, the progress information 37 is registered (stored) in the progress management database 33. The progress information 37 is newly registered or updated according to the actual value actually acquired at the work site during the decommissioning. That is, the progress management database 33 stores the progress information 37 that is updated based on the input of the work results. Further, the actual results may be input using the worker's mobile terminal 12 owned by the worker, or the actual results may be directly input to the process management computer 11.

The design information 34 registered in the plan management database 32 includes drawing data 38, in-area equipment data 39, area dimension data 40, area floor load capacity data 41, and incidental equipment data 42. Data other than these data may be included in the design information 34.

The drawing data 38 is, for example, a floor map (plan) for each floor of the reactor building 2 or the turbine building 3. The drawing data 38 includes data showing a design drawing of the reactor building 2 or the turbine building 3 or three-dimensional Computer Aided Design data (3D CAD data). The area information giving unit 28 sets the storage area based on the design information 34 including the design drawing of the nuclear facility 1. In this way, the storage area can be set at an appropriate place in the nuclear facility 1.

The in-area device data 39 is information about the device 7 as a disassembled object or a radioactive contaminant installed in the controlled area 8 to which the area number is assigned. For example, it is data such as the weight of the device 7, the occupied volume of the device 7, and the dose of the device 7.

The area dimension data 40 is data such as dimensions, area, height, volume, hierarchy, and floor load of the controlled area 8 to which the area number is assigned.

Ancillary equipment data 42 is equipment that is maintained together with buildings 2 and 3 without being dismantled, or equipment that is carried into buildings 2 and 3 for decommissioning, and is an overhead crane, reinforcing materials for buildings 2 and 3, and decontamination. This is data on incidental equipment such as equipment used for work.

The plan information 35 registered in the plan management database 32 includes work process plan data 43, area use plan data 44, area work plan data 45, and waste storage amount plan data 46. Data other than these data may be included in the plan information 35.

The work process plan data 43 is data indicating the work schedule and procedure of decommissioning measures determined for each target of decommissioning. The plan data 43 of this work process includes, for example, a storage plan for waste generated at the nuclear facility 1, a dismantling plan for the dismantled object, and a decontamination plan for radioactive contaminants.

The area use planning data 44 is data indicating the use of each managed area 8 set based on the work process planning data 43, the work process of each managed area 8, and the physical quantity schedule of each managed area 8. is there. It also includes data on the classification of nuclear facility 1 as a target facility and data on the assignment of area numbers. Based on the planning data 44 for this area use, the use of each managed area 8 is divided into a "demolition area" where dismantling work is performed, a "treatment area" where decontamination of the dismantled object is performed, or storage in a container. Set to one of the "storage areas" for storing waste.

The plan data 45 of the work in the area is the work such as dismantling the equipment 7 to be abolished, decontaminating the dismantled object or storing the dismantled object, transporting the waste, and storing the waste performed in each controlled area 8. It is data which shows a detailed process. In the work schedule, a planned value for the progress of the work is also set.

The waste storage amount planning data 46 is a planned value indicating the amount of waste that can be stored in the storage area. For example, the amount of material that can be stored in the storage area is the space occupied by the abolition target or waste in the area, the ratio of the waste in the area, the weight of the object, the dose of the substance (mSv / h), the number of the objects, etc. It is set based on the value of. The values at these planning stages are the planning data 46.

The area information giving unit 28 sets the storage area in association with the radioactive contamination level of the waste. In this way, the storage area can be set according to the radioactive contamination level.

The plan information 35 of the present embodiment includes the planned amount related to any of the controlled areas 8, the amount of waste generated by the dismantling plan of the dismantled object, and the decontamination plan of the radioactive contaminants. It includes the amount of waste generated and the amount of waste stored in the waste storage plan.

The management table 36 registered in the plan management database 32 includes, for example, an area management table that manages the managed area 8 and a waste management table that manages waste. A table other than these may be included in the management table 36. For example, the management table 36 may include a table for managing the objects to be disassembled or a table for managing the radioactive contaminants.

As shown in FIG. 5, in the area management table, initial use, medium-term use, late-stage use, planned storage waste, storage record waste, and current occupancy rate are registered in association with the area number. In addition, other information may be registered.

In the items of initial use, medium-term use, and late-use use, the use set in the managed area 8 corresponding to each period is registered. For example, any one of "disassembly area", "processing area", and "storage area" is registered. In addition, the radioactive contamination level of the material handled in the controlled area 8 is registered corresponding to each period.

For example, in the area number "T-1-a", the "treatment area" is set as the initial use, and the radioactive contamination level during this period is set as the "L1 level". Then, when the decontamination work is completed and the radioactive contamination level drops, the radioactive contamination level is set as "L3 level" in the period of medium-term use. In addition, when a "storage area" is set for late use, the level of radioactive contamination of waste that can be stored in this area is set.

In the present embodiment, in order to help understanding, an embodiment in which three periods (periods) of the initial stage, the middle stage, and the late stage are set in the area management table is illustrated, but other modes may be used. For example, the use of the managed area 8 may be set in units of years, months, weeks, days, or time. That is, the time (time point) such as year, month, week, day, and time may be set in the area management table.

In the item of waste to be stored, when the corresponding managed area 8 is set to the "storage area", the tag ID of the waste to be stored in this storage area is registered.

When the corresponding managed area 8 is set as the "storage area", the tag ID of the waste actually stored in this storage area is registered in the storage record waste item.

The area specifying unit 30 may specify the storage area in which the tag ID not registered in the item of the waste to be stored is registered in the item of the actual storage waste based on the area management table. Then, the status display unit 31 may perform a predetermined notification display when the tag ID that is not registered in the item of the waste to be stored is registered in the item of the actual storage waste. Further, the status display unit 31 may display a predetermined notification when the predetermined waste is stored in storage areas having different levels of radioactive contamination. In this way, the manager can know that the waste is not stored in an appropriate storage area.

In the item of current occupancy rate, when the corresponding managed area 8 is set to "storage area", the current occupancy rate of this storage area is registered. This occupancy rate can be calculated based on the items of waste to be stored and the items of actual storage waste.

In this embodiment, only the current occupancy rate of the storage area is illustrated to help understanding, but the occupancy rate may be calculated according to each time of decommissioning. In addition, a plurality of storage record waste items corresponding to each period of decommissioning may be provided. Then, in each storage record waste item, the tag ID of the waste scheduled to be stored may be registered according to the corresponding time.

The occupancy rate of this embodiment is calculated based on planned and actual values such as the number of wastes stored in the storage area, the volume of wastes, the weight of wastes, the dose of wastes, and the properties of wastes. Will be done.

The area management table may have other aspects. For example, as shown in FIG. 6, the area management table of the modified example is provided for each date of the working period. For example, in the area management table, the intended use, stored waste, and occupancy rate are registered in association with the area number. In addition, other information may be registered.

In the item of intended use, the intended use set in the managed area 8 corresponding to the date is registered. Further, the radioactive contamination level of the material handled in the controlled area 8 is registered. If the corresponding date is in the future, the planned use and radioactive contamination level will be registered. If the corresponding date is current, today's intended use and radioactive contamination level will be registered. If the corresponding date is in the past, the actual intended use and radioactive contamination level are registered.

In the item of stored waste, the tag ID of the waste stored in the controlled area 8 is registered according to the date. If the corresponding date is in the future, the waste to be stored is registered. If the corresponding date is current, today's planned storage waste will be registered. If the corresponding date is in the past, the stored waste is registered.

In the occupancy rate item, the occupancy rate of the managed area 8 corresponding to the date is registered. This occupancy rate can be calculated based on the waste to be stored and the waste to be stored. By referring to the area management table corresponding to each date, the occupancy rate according to each time of decommissioning may be calculated.

As shown in FIG. 7, in the waste management table, the initial position area, the current position, the planned storage area, the radioactive contamination level, and the current form are registered in association with the tag ID. In addition, other information may be registered.

In the item of the initial position area, the managed area 8 in which the waste corresponding to the tag ID initially exists is registered. This initial location area mainly indicates the location of waste generation. For example, it indicates the location of the demolition material before being dismantled as waste or the radioactive contamination before decontamination.

In the item of the current position, the current position where the waste corresponding to the tag ID exists is registered.

In the item of the planned storage area, the managed area 8 (storage area) in which the waste corresponding to the tag ID is scheduled to be stored is registered. When the controlled area 8 registered in the current position matches this planned storage area, it indicates that the waste has already been stored.

In the item of radioactive contamination level, the radioactive contamination level of waste corresponding to the tag ID is registered. In addition, the status display unit 31 displays a predetermined notification when the radioactive contamination level when the planned storage area is set as the storage area is different from the radioactive contamination level of the waste based on the waste management table. May be done.

In the item of the current form, the current form of the waste corresponding to the tag ID is registered. For example, information indicating whether the container has already been stored or the state after dismantling is registered. In addition, information indicating the state before dismantling, that is, the stage where it is planned to be waste may be registered.

As shown in FIG. 4, the progress information 37 registered in the progress management database 33 includes the progress data 47 of the work process, the progress data 48 of the dose rate in the area, the progress data 49 of the work status by area, and the generation of waste. A quantity progress data 50, a waste transport amount progress data 51, and a waste storage amount progress data 52 are included. Data other than these data may be included in the plan information 35. These data are mainly acquired by workers at the work site. Further, the progress information 37 is information that is mainly updated based on the actual results. However, even if the work has not been actually performed yet, if the work is scheduled to be performed in a short period of time, the progress information 37 may include information on the schedule.

The work process progress data 47 is data indicating whether or not the decommissioning work schedule and procedure determined for each abolition target are actually performed.

The progress data 48 of the dose rate in the area is data showing the actual dose rate of each controlled area 8 set based on the work process planning data 43.

The progress data 49 of the work status by area is data indicating the actual work status performed in each managed area 8 set based on the plan data 43 of the work process.

The progress data 50 of the amount of waste generated is data showing the amount of waste actually generated in the predetermined controlled area 8.

The progress data 51 of the amount of waste transported is data indicating the amount of waste actually transported from the predetermined controlled area 8.

The waste storage amount progress data 52 is data indicating the storage amount of waste actually stored in the controlled area 8 set as the “storage area” based on the work process planning data 43. That is, the progress information 37 includes the actual amount of waste to be stored in the storage area.

The progress information 37 of this embodiment shows the actual amount of waste related to any of the controlled areas 8, the amount of waste generated by the actual dismantling work, and the amount of waste generated by the actual decontamination work. And the amount of waste actually stored.

The area information giving unit 28 may automatically rewrite the planning data 44 for the area use based on the progress information 37. For example, even if the area usage plan data 44 is set to "disassembly area", the area usage may be automatically rewritten as a "storage area" when the dismantling work has already been completed. By doing so, the progress information 37 can be fed back to the plan information 35. Then, the work plan and the work process can be reviewed to reflect the work results.

Next, the process control screen 60 will be described with reference to FIG. It should be noted that FIGS. 3 to 7 described above are referred to as appropriate.

As shown in FIG. 8, the status display unit 31 of the process management computer 11 generates a process management screen 60 and displays it on a display device such as a display. The process control screen 60 may also function as an input screen on which predetermined information can be input using an input device (information input unit 24) such as a mouse or a keyboard. Further, the process management screen 60 may be displayed on the display provided in the worker's mobile terminal 12.

On the process control screen 60, a work process chart 61 showing the work process and an area status table 62 showing the status of each controlled area 8 are displayed side by side. The work process chart 61 is displayed in the upper row, and the area status table 62 is displayed in the lower row. That is, the work process table 61 and the area status table 62 are displayed in the same window. When the process management screen 60 is printed by a printer, the work process table 61 and the area status table 62 are printed on the same paper surface.

Information on the work content is displayed in the work process chart 61. For example, the schedule of the dismantling work of the device 7 as the object to be dismantled and the schedule of the decontamination work of the device 7 as the radioactive contaminant are displayed. The work process chart 61 has a so-called Gantt chart type display form in which each task is displayed by a bar graph 63 extending horizontally so that tasks can be managed at a glance.

The work process chart 61 shows the entire work flow and the progress status. For example, in the bar graph 63, the left end portion indicates the work start date, and the right end portion indicates the scheduled work completion date. That is, the date and time (time) can be shown on the horizontal axis, and the period and progress of the bar graph 63 can be visually shown. The work schedule 61 mainly displays work schedules from the present to the future. Further, the actual results of the work related to the past may be displayed in the work schedule 61.

Further, in the work process chart 61, two chart cursors 64 and 65 for designating the time are displayed. Detailed information on the time specified by these chart cursors 64 and 65 is displayed in the area status table 62. In the present embodiment, a chart cursor 64 indicating the first period and a chart cursor 65 indicating the second period are provided. It should be noted that three or more chart cursors 64 and 65 may be provided. Dates 66 and 67 are displayed corresponding to the respective chart cursors 64 and 65.

Further, the chart cursors 64 and 65 can be dragged (moved) in the left-right direction by selecting with the mouse pointer 68. That is, the time to be displayed in the area status table 62 can be specified by dragging the chart cursors 64 and 65. This operation is performed by a manager who handles the process management computer 11. When the process management screen 60 is displayed on the worker's mobile terminal 12, the worker may perform this operation.

The manager can manage the decommissioning work based on the process control screen 60. Then, the type (use) of the area can be reset, and the schedule of each work can be changed. In this way, the usage plan or work process of the controlled area 8 can be reviewed.

In the area status table 62, items of the usage plan (use), the initial conditions, the area status of the first period, and the area status of the second period are displayed in association with the area numbers of the respective managed areas 8. ..

In the usage plan (use) item, the use currently being set for the corresponding managed area 8 is displayed. For example, a "disassembly area", a "processing area", or a "storage area" is displayed in this item.

In the item of usage plan (use), the past use may be displayed for the corresponding managed area 8, or the future use may be displayed. That is, the item of the usage plan (use) may be appropriately selected by the administrator.

In the item of initial condition, the situation at the beginning of decommissioning in the corresponding managed area 8 is displayed. In this item, for example, the amount of waste (plan information 35) scheduled to be generated from the corresponding controlled area 8 is displayed. In addition, the area (area, height, volume) of the corresponding managed area 8 is displayed. When the corresponding managed area 8 is set as a storage area, the amount of waste that can be stored in the storage area is displayed. The amount of waste is indicated by the number of containers (unit is "body"). In addition, the amount of waste may be indicated by the occupancy rate of the storage area.

The status display unit 31 of the present embodiment displays the area number as the area identification information that can identify each controlled area 8 and the work process chart 61 side by side on the process management screen 60. In this way, the manager can grasp the work process corresponding to each managed area 8.

In the item of the area status of the first period, the status of the first period of the corresponding managed area 8 is displayed. This first period is designated by the chart cursor 64 in the work schedule 61.

In the item of the area status of the second period, the status of the second period of the corresponding managed area 8 is displayed. This second period is designated by the chart cursor 65 in the work schedule 61.

The status displayed in these area status items includes, for example, the dismantling status of the object to be dismantled, the decontamination status of radioactive contaminants, and the storage status of waste. Further, a table of waste actually generated from the corresponding managed area 8 is displayed as an actual amount (progress information 37). Further, when the corresponding managed area 8 is set as the storage area, the occupancy rate of the storage area is displayed.

In principle, area status items are displayed on a white background. In these area status items, character information indicating the status of the managed area 8 is displayed. The status display unit 31 controls to switch the background of the item of the controlled area 8 for which it is necessary to review the usage plan of the area or the work process from white to a predetermined notification color (warning color). That is, the item of the managed area 8 to be notified is displayed in a mode different from that of other items of the managed area 8.

In the area identification unit 30 of the present embodiment, at the time specified by the chart cursors 64 and 65, the amount of waste generated based on the progress information 37 is the first upper limit specified value of the storage amount predetermined in the plan information 35 ( For example, specify a storage area that is 70%) or more. Then, on the process management screen 60, the item 69 of the area situation in which the occupancy rate of the storage area is equal to or higher than the first upper limit specified value is displayed in a predetermined notification color (for example, orange). That is, the status display unit 31 displays the storage area in which the storage amount is equal to or greater than the first upper limit specified value in an identifiable manner. In this way, the administrator can grasp the time when the storage amount in the storage area reaches the first upper limit specified value or more.

Further, in the area specifying unit 30, at the time specified by the chart cursors 64 and 65, the amount of waste generated based on the progress information 37 is the second upper limit specified value of the storage amount predetermined in the plan information 35 (for example, Specify a storage area that is 90%) or more. Then, on the process management screen 60, the item 70 of the area situation in which the occupancy rate of the storage area is equal to or higher than the second upper limit specified value is displayed in a predetermined notification color (for example, red). That is, the status display unit 31 displays the storage area in which the storage amount is equal to or greater than the second upper limit specified value in an identifiable manner. In this way, the administrator can grasp the time when the storage amount of the storage area reaches the second upper limit specified value or more (the time when the storage area becomes tight).

Further, in the area identification unit 30, at the time specified by the chart cursors 64 and 65, the amount of waste generated based on the progress information 37 is the lower limit specified value (for example, 10%) of the storage amount predetermined in the plan information 35. ) Identify the following storage areas. Then, on the process control screen 60, the item 71 of the area situation in which the occupancy rate of the storage area is equal to or less than the lower limit specified value is displayed in a predetermined notification color (for example, blue). That is, the status display unit 31 displays the storage area in which the storage amount is equal to or less than the lower limit specified value in an identifiable manner. In this way, the administrator can grasp the storage area where the storage amount is small. When the storage amount is small, the storage area can be reset as an area for other purposes, so that the target facility can be used efficiently.

Further, when the area specifying unit 30 specifies a storage area to be displayed in the notification color (for example, blue), the time when the storage amount becomes equal to or less than the lower limit specified value continues for a predetermined specific period or longer. In this case, the area status item 71 of the storage area may be displayed in the notification color. That is, when the storage area is initially set, the storage amount continues to be below the lower limit specified value. If the notification target includes such an initial storage area, a large number of unnecessary notifications will occur. In order to prevent this unnecessary notification, the notification is performed only when the storage amount becomes the lower limit specified value or less for a predetermined period or more. By doing so, the storage amount remains small for a long period of time, and the administrator can grasp the managed area 8 which is uselessly set as the storage area. Then, the administrator can reset the useless storage area for other purposes. Therefore, the managed area 8 can be used efficiently.

The area specifying unit 30 of the present embodiment refers to the plan management database 32 and the progress management database 33, and at the time specified by the chart cursors 64 and 65, the difference to be notified between the planned amount and the actual amount. The managed area 8 where the above occurs is specified.

For example, a planned value of the amount of waste generated in a predetermined controlled area 8 (demolition area or treatment area) is determined. Further, a certain threshold value (for example, 30%) is set as the difference to be notified. Then, when the amount of waste generated by the actual dismantling work is 30% or more more than the planned value, or 30% or more less than the planned value, the controlled area 8 is specified. The threshold value set as the difference to be notified is not limited to a fixed value, and may be set to a different value depending on the use of each managed area 8 or the timing of decommissioning.

Then, on the process control screen 60, the item 72 of the area status of the controlled area 8 in which the difference to be notified occurs between the planned amount and the actual amount is displayed in a predetermined notification color (for example, yellow). That is, the status display unit 31 displays the managed area 8 in which a difference to be notified occurs between the planned amount and the actual amount in an identifiable manner. In this way, the manager can grasp the managed area 8 in which the planned amount and the actual amount are different.

The status display unit 31 of the present embodiment displays the area number, the plan information 35 corresponding to the managed area 8 being displayed, and the progress information 37 corresponding to the managed area 8 being displayed on the process management screen 60. Display side by side. In this way, the plan information 35 and the progress information 37 corresponding to each managed area 8 can be grasped.

Further, in the present embodiment, the work process chart 61 and the chart cursors 64 and 65 are provided, and the area status table 62 corresponding to the time specified by these chart cursors 64 and 65 is displayed. That is, the status display unit 31 accepts the designation of the time (time point) to be displayed, and displays the statuses of the plurality of managed areas 8 at the designated time side by side. In this way, the situation of the managed area 8 at a predetermined time can be grasped.

Further, the status display unit 31 can accept the designation of the first period and the second period different from the first period by the chart cursors 64 and 65. Then, the statuses of the same managed area 8 in the designated first period and second period are displayed side by side. In this way, the usage plan or work process of the controlled area 8 can be reviewed over a plurality of periods.

In the present embodiment, the time is specified by the chart cursors 64 and 65, but the time may be specified by the administrator inputting the date using the keyboard.

Further, the status display unit 31 may accept the designation of three or more time periods by the chart cursors 64 and 65. Then, the statuses of the managed area 8 that are the same at three or more designated times may be displayed side by side.

In the present embodiment, the area status items 69, 70, 71, 72 of the predetermined managed area 8 are displayed in the predetermined notification color (warning color) in the area status table 62, but the predetermined managed area 8 is displayed. To display the area 8 in an identifiable manner, it may be displayed on a paper surface, that is, the area status table 62 may be printed on the paper surface.

By using the process management computer 11 of the present embodiment, it is possible to support the process management of decommissioning and smoothly proceed with the dismantling work of the dismantled object and the decommissioning of the nuclear facility 1 where the storage place of waste is limited. ..

In addition, according to the work process of decommissioning, the situation of each managed area 8 is grasped, and if the work process of decommissioning is likely to be delayed due to the progress, the usage plan of the managed area 8 or the usage plan of the managed area 8 or The work process can be reviewed.

Next, the main control process executed by the process management computer 11 will be described with reference to the flowchart of FIG. In addition, the block diagram shown in FIGS. 3 and 4, the management table shown in FIGS. 5 to 7, and the process control screen 60 shown in FIG. 8 are appropriately referred to.

This process is a process that is repeated at regular intervals. By repeating this process, the process management method is executed on the process management computer 11. It should be noted that this process may be interrupted and executed while the process management computer 11 is executing another main process.

As shown in FIG. 9, first, in step S11, the main control unit 23 executes the information input process. In this information input process, the information input unit 24 accepts input of various information.

For example, the information input unit 24 accepts input of work results, which are actual values actually acquired at the work site during decommissioning. It also accepts an input operation as to whether or not to change the registered contents of the plan management database 32. In addition, it accepts an input operation as to whether or not to display the process management screen 60 on the display. In addition, it accepts the operation of designating the time to be displayed in the area status table 62. It also accepts changes in the design information 34 registered in the plan management database 32. It also accepts changes in the plan information 35 registered in the plan management database 32. In addition, we will accept changes in the classification of nuclear facility 1 as a target facility. In addition, it accepts changes in the use of the predetermined managed area 8. Further, inputs other than these inputs may be accepted. In this information input process, various information is input mainly during the decommissioning work. Further, the initial registration to the plan management database 32 is separately executed in the initial registration process.

In the next step S12, the main control unit 23 executes an initial registration process for registering various information in the plan management database 32 before the start of decommissioning.

In the next step S13, the main control unit 23 executes a process management process for managing the decommissioning work process. Then, the process ends.

Next, the initial registration process executed by the process management computer 11 will be described with reference to the flowchart of FIG. In addition, the block diagram shown in FIGS. 3 and 4, the management table shown in FIGS. 5 to 7, and the process control screen 60 shown in FIG. 8 are appropriately referred to.

As shown in FIG. 10, first, in step S21, whether or not the main control unit 23 has already registered various information necessary for decommissioning in the plan management database 32, that is, whether or not it has been initially registered. To judge. Here, if the initial registration has been completed (YES in step S21), the process ends. On the other hand, if the initial registration has not been completed (NO in step S21), the process proceeds to step S22.

In the next step S22, the information input unit 24 receives the input of the design information 34. The input design information 34 is registered in the plan management database 32.

In the next step S23, the information input unit 24 receives the input of the plan information 35. The input plan information 35 is registered in the plan management database 32.

In the next step S24, the area identification processing unit 27 accepts the classification of the nuclear facility 1 as the target facility. For example, each room of the reactor building 2 and the turbine building 3 is divided into a controlled area 8.

In the next step S25, the area identification processing unit 27 assigns an area number as the area identification information to each managed area 8 based on the design information 34 or the plan information 35 registered in the plan management database 32.

In the next step S26, the area information assigning unit 28 sets the “storage area” and the “storage area” in the managed areas 8 according to the usage based on the design information 34 or the plan information 35 registered in the plan management database 32. Set the "disassembly area" or "processing area".

In the next step S27, the main control unit 23 registers the area numbers in the area management table of the plan management database 32, and in association with each area number, various information based on the design information 34 or the plan information 35 is added. to register. Then, the process ends.

Next, the process management process executed by the process management computer 11 will be described with reference to the flowcharts of FIGS. 11 to 13. In addition, the block diagram shown in FIGS. 3 and 4, the management table shown in FIGS. 5 to 7, and the process control screen 60 shown in FIG. 8 are appropriately referred to.

As shown in FIG. 11, first, in step S31, the main control unit 23 determines whether or not the work record, which is the actual value actually acquired at the work site during the decommissioning, has been input to the information input unit 24. judge. Here, if there is no input of the work result (NO in step S31), the process proceeds to step S33 described later. On the other hand, if there is an input of work results (YES in step S31), the process proceeds to step S32.

In the next step S32, the main control unit 23 updates the registered contents of the progress management database 33 based on the work results input to the information input unit 24.

In the next step S33, the main control unit 23 determines whether or not the information input unit 24 has accepted the change of the registered contents of the plan management database 32. That is, it is determined whether or not the administrator has performed an input operation for changing the registered contents of the plan management database 32 based on the work results. Here, if the change of the registered contents of the plan management database 32 is not accepted (step S33 is NO), the process proceeds to step S35 described later. On the other hand, when the change of the registered contents of the plan management database 32 is accepted (YES in step S33), the process proceeds to step S34.

In the next step S34, the main control unit 23 updates (changes) the registered contents of the plan management database 32 based on the registered contents of the progress management database 33. The registered contents of the plan management database 32 may be changed automatically regardless of the input operation of the administrator.

In the next step S35, the status display unit 31 determines whether or not the process management screen 60 is being displayed on the display. Here, when the process control screen 60 is being displayed (YES in step S35), the process proceeds to step S40 described later. On the other hand, if the process control screen 60 is not being displayed (NO in step S35), the process proceeds to step S36.

In the next step S36, the status display unit 31 determines whether or not the information input unit 24 has accepted the input operation for displaying the process management screen 60 on the display. That is, it is determined whether or not the manager has performed an input operation for displaying the process control screen 60. Here, if the input operation for displaying the process control screen 60 is not accepted (step S36 is NO), the process proceeds to step S51 described later. On the other hand, when the input operation for displaying the process management screen 60 is accepted (YES in step S36), the process proceeds to step S37.

In the next step S37, the status display unit 31 creates the work schedule 61 based on the registered contents of the plan management database 32.

In the next step S38, the area status processing unit 29 creates an area status table 62 of the managed area 8 corresponding to the current status based on the registered contents of the plan management database 32 and the progress management database 33.

In the next step S39, the status display unit 31 displays the created work process chart 61 and area status table 62 on the display.

In the next step S40, the status display unit 31 determines whether or not the information input unit 24 has accepted the designation of the time to be displayed in the area status table 62. For example, the manager operates the chart cursors 64 and 65 displayed superimposed on the work process chart 61 to specify the time. Here, if the designation of the display target time is not accepted (step S40 is NO), the process proceeds to step S43 described later. On the other hand, when the designation of the display target time is accepted (YES in step S40), the process proceeds to step S41.

In the next step S41, the area status processing unit 29 creates the area status table 62 of the managed area 8 corresponding to the designated time based on the registered contents of the plan management database 32 and the progress management database 33.

In the next step S42, the status display unit 31 updates the area status table 62 displayed on the display to the one corresponding to the designated time.

As shown in FIG. 12, in the next step S43, the area identification unit 30 refers to the plan management database 32 and the progress management database 33, and in the area status table 62 displayed on the display, the occupancy rate is defined as the first upper limit. It is determined whether or not there is a storage area having a value (for example, 70%) or more. In this determination, it is determined whether or not there is a storage area whose occupancy rate is equal to or more than the first upper limit specified value and less than the second upper limit specified value. Here, if there is no storage area in which the occupancy rate is equal to or higher than the first upper limit specified value (NO in step S43), the process proceeds to step S45 described later. On the other hand, if there is a storage area whose occupancy rate is equal to or higher than the first upper limit specified value (YES in step S43), the process proceeds to step S44.

In the next step S44, the status display unit 31 displays the area status item 69 of the storage area whose occupancy rate is equal to or higher than the first upper limit specified value in a predetermined notification color (for example, orange).

In the next step S45, the area identification unit 30 refers to the plan management database 32 and the progress management database 33, and in the area status table 62 displayed on the display, the occupancy rate is the second upper limit specified value (for example, 90%). Determine if there is a storage area that is as described above. Here, if there is no storage area in which the occupancy rate is equal to or higher than the second upper limit specified value (step S45 is NO), the process proceeds to step S47 described later. On the other hand, if there is a storage area whose occupancy rate is equal to or higher than the second upper limit specified value (YES in step S45), the process proceeds to step S46.

In the next step S46, the status display unit 31 displays the item 70 of the area status of the storage area whose occupancy rate is equal to or higher than the second upper limit specified value in a predetermined notification color (for example, red).

In the next step S47, the area identification unit 30 refers to the plan management database 32 and the progress management database 33, and in the area status table 62 displayed on the display, the occupancy rate is set to the lower limit specified value (for example, 10%) or less. Determine if there is a storage area. In this determination, it may be determined whether or not there is a storage area in which the storage amount becomes equal to or less than the lower limit specified value for a predetermined period or longer. Here, if there is no storage area in which the occupancy rate is equal to or less than the lower limit specified value (step S47 is NO), the process proceeds to step S49 described later. On the other hand, if there is a storage area whose occupancy rate is equal to or less than the lower limit specified value (YES in step S47), the process proceeds to step S48.

In the next step S48, the status display unit 31 displays the item 71 of the area status of the storage area whose occupancy rate is equal to or less than the lower limit specified value in a predetermined notification color (for example, blue).

In the next step S49, the area identification unit 30 refers to the plan management database 32 and the progress management database 33, and in the area status table 62 displayed on the display, the difference to be notified between the planned amount and the actual amount. It is determined whether or not there is a managed area 8 in which Here, if there is no managed area 8 in which the difference to be notified occurs (step S49 is NO), the process proceeds to step S51 described later. If there is a managed area 8 in which a difference to be notified occurs (YES in step S49), the process proceeds to step S50.

In the next step S50, the status display unit 31 displays the area status item 72 of the managed area 8 in which the difference to be notified occurs in a predetermined notification color (for example, yellow).

As shown in FIG. 13, in the next step S51, the main control unit 23 determines whether or not the information input unit 24 has accepted the change of the design information 34 registered in the plan management database 32. If the change in the design information 34 is not accepted (NO in step S51), the process proceeds to step S53 described later. On the other hand, when the change of the design information 34 is accepted (YES in step S51), the process proceeds to step S52.

In the next step S52, the main control unit 23 changes the design information 34 registered in the plan management database 32. This change may be made based on the registered contents of the progress management database 33, or may be made based on the information input to the information input unit 24.

In the next step S53, the main control unit 23 determines whether or not the information input unit 24 has accepted the change of the plan information 35 registered in the plan management database 32. Here, if the change of the plan information 35 is not accepted (step S53 is NO), the process proceeds to step S55 described later. On the other hand, when the change of the plan information 35 is accepted (YES in step S53), the process proceeds to step S54.

In the next step S54, the main control unit 23 changes the plan information 35 registered in the plan management database 32. This change may be made based on the registered contents of the progress management database 33, or may be made based on the information input to the information input unit 24.

In the next step S55, the area identification processing unit 27 determines whether or not the information input unit 24 has accepted the change in the classification of the nuclear facility 1 as the target facility. Here, when the change of the classification is not accepted (step S55 is NO), the process proceeds to step S58 described later. On the other hand, when the change of the classification is accepted (YES in step S55), the process proceeds to step S56.

In the next step S56, the area identification processing unit 27 changes the information regarding the classification of the nuclear facility 1 registered in the plan management database 32. This change may be made based on the registered contents of the progress management database 33, or may be made based on the information input to the information input unit 24.

In the next step S57, the area identification processing unit 27 changes the area number of the managed area 8 registered in the plan management database 32. This change is made based on the information input to the information input unit 24.

In the next step S58, the area information giving unit 28 determines whether or not the information input unit 24 has accepted the change of the usage of the predetermined managed area 8. Here, if the change in the usage of the predetermined managed area 8 is not accepted (step S58 is NO), the process ends. On the other hand, when the change of the use of the predetermined managed area 8 is accepted (YES in step S58), the process proceeds to step S59.

In the next step S59, the area information giving unit 28 changes the setting of the usage of the managed area 8 that has received the change among the registered contents registered in the plan management database 32.

In the next step S60, the main control unit 23 performs various information based on the design information 34 or the plan information 35 in the area management table of the plan management database 32 in association with the area number of the managed area 8 that has received the change. to register. Then, the process ends.

In the present embodiment, the determination of an arbitrary value (for example, storage amount, generation amount, planned amount or actual amount) using the reference value (for example, upper limit specified value, lower limit specified value or threshold value) is "arbitrary. It may be a judgment of "whether or not the value is equal to or more than the reference value" or a judgment of "whether or not an arbitrary value exceeds the reference value". Alternatively, it may be determined "whether or not the arbitrary value is less than or equal to the reference value" or "whether or not the arbitrary value is less than the reference value". Further, the reference value is not fixed but may change. Therefore, a value in a predetermined range may be used instead of the reference value to determine whether or not an arbitrary value falls within the predetermined range. Further, the error generated in the apparatus may be analyzed in advance, and a predetermined range including the error range centered on the reference value may be used for the determination.

Although the flowchart of the present embodiment illustrates a mode in which each step is executed in series, the context of each step is not necessarily fixed, and even if the context of some steps is exchanged. good. Also, some steps may be executed in parallel with other steps.

The system of this embodiment is composed of a computer having hardware resources such as a CPU, ROM, RAM, and HDD, and information processing by software is realized by using the hardware resources by executing various programs by the CPU. Will be done. Further, the process control method of the present embodiment is realized by causing a computer to execute a program.

The system of this embodiment includes a control device in which a dedicated chip, a controller such as an FPGA (Field Programmable Gate Array), a GPU (Graphics Processing Unit), or a CPU (Central Processing Unit) is highly integrated, and a ROM (Read Only). Storage devices such as Memory) or RAM (Random Access Memory), external storage devices such as HDD (Hard Disk Drive) or SSD (Solid State Drive), display devices such as displays, and input devices such as mice or keyboards. , With a communication interface. This system can be realized by a hardware configuration using a normal computer.

The program executed by the system of this embodiment is provided by incorporating it into a ROM or the like in advance. Alternatively, the program may be a computer-readable, non-transient storage medium such as a CD-ROM, CD-R, memory card, DVD, or flexible disk (FD) that is a file in an installable or executable format. It may be stored and provided in.

Further, the program executed by this system may be stored on a computer connected to a network such as the Internet, and may be downloaded and provided via the network. In addition, this system can also be configured by connecting separate modules that independently perform the functions of the components to each other via a network or a dedicated line and combining them.

In the present embodiment, a nuclear facility is exemplified as a target facility, and the process management system of the present embodiment is used for the process management of the decommissioning, but other modes may be used. For example, the process management system of the present embodiment may be used for process control when dismantling a facility such as a thermal power plant or a factory.

According to the embodiment described above, by providing an area identification unit that specifies a storage area in which the amount of waste generated based on the progress information is equal to or more than the upper limit specified value of the storage amount predetermined in the plan information. Can review application plans or work processes.

Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, changes, and combinations can be made without departing from the gist of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, as well as in the scope of the invention described in the claims and the equivalent scope thereof.

1 ... Nuclear facility, 2 ... Reactor building, 3 ... Turbine building, 4 ... Reactor, 5 ... Reactor pressure vessel, 6 ... Reactor containment vessel, 7 ... Equipment, 8 ... Controlled area, 10 ... Process control system , 11 ... Process management computer, 12 ... Mobile terminal for workers, 13 ... Two-dimensional code reader, 14 ... Non-contact communication unit, 15 ... Wireless communication unit, 16 ... Type 1 management tag, 17 ... Type 2 management Tag, 18 ... Type 3 management tag, 19 ... 2D code, 20 ... RFID chip, 21 ... Satellite positioning unit, 22 ... Communication unit, 23 ... Main control unit, 24 ... Information input unit, 25 ... Communication unit, 26 ... Time counting unit, 27 ... Area identification processing unit, 28 ... Area information assignment unit, 29 ... Area status processing unit, 30 ... Area identification unit, 31 ... Status display unit, 32 ... Plan management database, 33 ... Progress management database, 34 ... Design information, 35 ... Planning information, 36 ... Management table, 37 ... Progress information, 38 ... Drawing data, 39 ... Area equipment data, 40 ... Area dimension data, 41 ... Area floor load capacity data, 42 ... Ancillary equipment data , 43 ... Work process planning data, 44 ... Area use planning data, 45 ... Area work planning data, 46 ... Waste storage amount planning data, 47 ... Work process progress data, 48 ... Area dose Rate progress data, 49 ... progress data of work status by area, 50 ... progress data of waste generation amount, 51 ... progress data of waste transportation amount, 52 ... progress data of waste storage amount, 60 ... Process management screen, 61 ... work process chart, 62 ... area status table, 63 ... bar graph, 64, 65 ... chart cursor, 66, 67 ... date, 68 ... mouse pointer, 69, 70, 71, 72 ... area status items ..

Claims (19)

The target facility to be worked on is divided into a plurality of managed areas, and an area identification processing unit that identifies each managed area, and an area identification processing unit.
An area information giving unit that sets at least one of the plurality of managed areas as a storage area for storing the waste based on the plan information including the storage plan for the waste generated at the target facility.
An area status processing unit that processes progress information including the amount of waste generated that is scheduled to be stored in the storage area.
An area specifying unit that specifies the storage area where the amount of waste generated based on the progress information is equal to or greater than the upper limit value of the storage amount predetermined in the plan information.
A status display unit that displays the storage area in which the storage amount is equal to or greater than the upper limit specified value in an identifiable manner.
To prepare
Process control system. The status display unit displays in an identifiable manner the time when the storage amount exceeds the upper limit specified value.
The process control system according to claim 1. The area specifying unit identifies the storage area where the amount of the waste generated based on the progress information is equal to or less than the lower limit specified value of the storage amount predetermined in the plan information.
The status display unit displays the storage area in which the storage amount is equal to or less than the lower limit specified value in an identifiable manner.
The process control system according to claim 1 or 2. The status display unit accepts the designation of the time to be displayed, and displays the status of a plurality of the managed areas at the designated time side by side.
The process control system according to any one of claims 1 to 3. The status display unit can accept the designation of the first period and the second period different from the first period, and can display the same status of the managed area in the designated first period and the second period. Display side by side,
The process control system according to any one of claims 1 to 4. The status display unit includes area identification information that can identify each managed area, the plan information corresponding to the managed area being displayed, and the progress information corresponding to the managed area being displayed. Display side by side,
The process control system according to any one of claims 1 to 5. The status display unit displays area identification information that can identify each managed area and a process chart of the work side by side.
The process control system according to any one of claims 1 to 6. The area information adding unit sets at least one of the plurality of managed areas as a dismantling area for performing dismantling work of the dismantled object based on the plan information including the dismantling plan of the dismantled object.
The area status processing unit processes the progress information including the amount of the waste generated by the dismantling work corresponding to the dismantling area.
The process control system according to any one of claims 1 to 7. The plan information is a planned amount related to any of the managed areas, the amount of the waste generated by the dismantling plan of the dismantled object, and the waste generated by the waste storage plan. Including the above storage amount
The progress information is an actual amount related to any of the managed areas, and includes the amount of the waste generated by the actual dismantling work and the amount of the waste actually stored. Including
The area specifying unit identifies the managed area in which a difference to be notified occurs between the planned amount and the actual amount.
The status display unit displays the managed area specified by the area identification unit in an identifiable manner.
The process control system according to claim 8. The area information imparting unit uses at least one of the plurality of controlled areas as a processing area for performing the decontamination work of the radioactive contaminants based on the plan information including the decontamination plan of the radioactive contaminants. Set,
The area status processing unit processes the progress information including the amount of the waste generated by the decontamination work associated with the processing area.
The process control system according to any one of claims 1 to 9. The plan information is a planned amount related to any of the controlled areas, the amount of the waste generated by the radioactive contamination decontamination plan, and the waste according to the waste storage plan. Including the storage amount of the thing
The progress information is an actual amount related to any of the controlled areas, and includes the amount of the waste generated by the actual decontamination work and the amount of the waste actually stored. Including
The area specifying unit identifies the managed area in which a difference to be notified occurs between the planned amount and the actual amount.
The status display unit displays the managed area specified by the area identification unit in an identifiable manner.
The process control system according to claim 10. The progress information includes the actual amount of the waste to be stored in the storage area.
The area information adding unit accepts a change in the setting of the storage area according to a change in the actual amount of the waste generated.
The process control system according to any one of claims 1 to 11. The area information giving unit sets the storage area in association with the radioactive contamination level of the waste.
The process control system according to any one of claims 1 to 12. The plan management database in which the plan information is registered and
A progress management database in which the progress information is registered and the registered contents are updated based on the input of the work results.
With
The area information giving unit accepts a change in the plan information of the plan management database based on the update of the progress information of the progress management database.
The process control system according to any one of claims 1 to 13. Equipped with a management tag attached to the waste
The area status processing unit identifies at least the position of the waste based on the management tag.
The process control system according to any one of claims 1 to 14. The area status processing unit processes the initial position of the object related to the work, the form of the object, and the transfer destination of the waste generated by the work in association with the managed area.
The process control system according to any one of claims 1 to 15. The area information giving unit sets the storage area based on the design information including the design drawing of the target facility.
The process control system according to any one of claims 1 to 16. The target facility is a nuclear facility including a reactor building, and the work is a decommissioning of the nuclear facility.
The process control system according to any one of claims 1 to 17. The target facility to be worked on is divided into a plurality of managed areas, and the step of identifying each of the managed areas and
A step of setting at least one of the plurality of managed areas as a storage area for storing the waste based on the plan information including the storage plan for the waste generated at the target facility.
A step of processing progress information including the amount of the waste to be stored in the storage area, and
A step of specifying the storage area where the amount of the waste generated based on the progress information is equal to or more than the upper limit value of the storage amount predetermined in the plan information.
A step of displaying the storage area in which the storage amount is equal to or higher than the upper limit specified value in an identifiable manner, and
including,
Process control method.

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