JP2005083880A - Operation support system in radiation controlled institution - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an operation support system in a radiation controlled institution, which surely prevents an operator from making misoperations, improves operation efficiency of the operator and reduces radiation exposure on the operator. <P>SOLUTION: The system is provided with a dosimeter 1 which is carried by the operator in a radiation controlled area, and a administrative computer 2 which is installed in a radiation non-controlled area. The dosimeter 1 has a display unit 5, in which input operations using a touch pen 14 is applied and is connected to the administrative computer 2 by a radio communication means. The administrative computer 2 has a database which stores operation contents for equipment being set in the radiation controlled area, and routes to operation spaces where the equipments are set. In the operation of the equipment, when an operation content is input through the display unit of the dosimeter, by using the touch pen at an entrance of the operation space, the route up to the operation space is displayed on the display unit 5, based on the information of the database which is previously transmitted from the administrative computer to the dosimeter by the radio communication means, or based on the information of the database which is transmitted from the administrative computer to the dosimeter by the ratio communication, with a timing when the operation content is input. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a work support system in a radiation management facility for supporting operations such as maintenance and inspection of the radiation management facility in a nuclear reactor, a fuel reprocessing factory, a fuel manufacturing factory, and the like.

  In radiation control facilities such as nuclear reactors, fuel reprocessing plants, fuel manufacturing plants, etc., field workers carry out work such as maintenance and inspection of equipment installed in the radiation control area according to the work manual. Is common.

  Work contents include various work such as calibration of detectors in radiation measurement units such as radiation monitors, accuracy check of pressure gauges and thermometers as process instrumentation, operation check of valves, presence of abnormalities, etc. .

  In this way, there are many target devices in the radiation control area, and the structure of the facility is complicated. Therefore, it is necessary to ensure safety and carefulness such as reducing the exposure of workers. It took time and it was sometimes difficult to proceed as scheduled.

  Conventionally, when preparing a work plan, advice and guidance are appropriately given based on past experience such as estimation of exposure dose and past actual values for planning radiation protection measures, etc., to reduce worker exposure We are trying to make it.

  However, these operations can be appropriately handled by experienced workers, but cannot be easily performed by less experienced beginners. Corresponding to the guidance of the manager. In addition, it took a lot of time and effort to search the huge amount of data required for advice and guidance when creating a special radiation work plan.

Under such circumstances, conventionally, a technique has been proposed in which radio transmitters are arranged at a plurality of locations in a facility, and worker position information is obtained using a wireless communication network to reduce exposure. (For example, refer to Patent Document 1).
Japanese Patent Laid-Open No. 10-10234

  According to the above-described prior art, it is possible to reduce the exposure, but the calibration of the detector in the radiation measurement unit such as the radiation monitor, the accuracy check of the pressure gauge, the thermometer, etc. as the process instrumentation, the valve It is difficult to comprehensively attempt to eliminate the operator's work mistakes, improve the worker's work efficiency, reduce the worker's exposure, and the like for various operations such as operation confirmation and abnormality.

  The present invention has been made in view of such circumstances, and work in a radiation management facility capable of reliably eradicating work mistakes by workers, improving work efficiency of workers, reducing exposure to workers, and the like. The purpose is to provide a support system.

  In order to achieve the above object, the invention according to claim 1 comprises a dosimeter carried by a worker in a radiation control area and a management computer installed in a radiation non-control area, wherein the dosimeter is a touch pen. And a display unit capable of performing an input operation, and is connected to the management computer by wireless communication means, the management computer, the work content intended for the equipment installed in the radiation management area, It has a database that records the directions to the work place where the equipment is installed, and the work content is input from the display unit of the dosimeter by the touch pen at the entrance of the work place. When the work content is input based on the information in the database previously transmitted from the management computer to the dosimeter by wireless communication Provided is a work support system in a radiation management facility, wherein a route to the work place is displayed on a display unit of the dosimeter based on information in the database transmitted from the management computer by wireless communication. .

  In the invention which concerns on Claim 2, the dosimeter which the worker in the radiation control area carries, the management computer installed in the radiation non-control area, the tag plate with which the work object apparatus in the said radiation control area was equipped, The dosimeter has a display unit that can be input with a touch pen, and is connected to the management computer and the tag plate by wireless communication means, respectively. It has a database that records the tag number and the shortest route to the work place of the corresponding device, and the tag number is input from the display unit of the dosimeter by the touch pen when working with multiple devices In this case, based on the information in the database previously transmitted from the management computer to the dosimeter by wireless communication, Alternatively, the shortest route to the work place is displayed on the display unit of the dosimeter based on the information in the database transmitted from the management computer by wireless communication when the work content is input. Provide work support systems in radiation management facilities.

  In the invention which concerns on Claim 3, the dosimeter which the worker in the radiation control area carries, the management computer installed in the radiation non-control area, the tag plate with which the work object apparatus in the said radiation control area was equipped, The dosimeter has a display unit and a sound generator, and is connected to the management computer and the tag plate by wireless communication means, respectively, and the management computer has a work target for each work day. Based on the database in which the tag number of the device to be recorded is recorded and the information in this database, it is determined whether or not the device corresponding to the tag number of the tag plate input by the touch pen on the day of work is the work target device. And when the work is performed in the radiation control area, if the dosimeter approaches the work equipment, The tag number of the tag plate of the approaching device is automatically read by the dosimeter by communication, and the read information is transmitted to the management computer, and the tag is provided by the determination means provided in the management computer. It is determined whether the numbered device is a device to be worked, and the determination result is wirelessly communicated to the dosimeter and notified to the worker by a display unit and a sound generator provided in the dosimeter. A work support system in a radiation management facility characterized by

  In the invention which concerns on Claim 4, the said management computer records the information regarding the work result transmitted from the said dosimeter, the work daily report preparation means which produces a work daily report, Work object apparatus from the said information, or its Anomaly information recording database that records abnormal information in the vicinity along with its causes and countermeasures, and an anomaly history search database that arranges and records the anomaly information as a history based on related work contents and work results A work support system in a radiation management facility according to any one of claims 1 to 3, which enables automatic creation of a daily work report and investigation of the cause of abnormality by the management computer.

  In the invention which concerns on Claim 5, the said work object apparatus is made into the radiation measurement unit installed in the radiation control area, The said dosimeter is connected with the calculating means of the radiation dose equivalent provided in the said radiation measurement unit The measurement data health that evaluates the health of the measurement data by comparing the connection means for performing the calibration, the data calibration means for calibrating the radiation measurement data using the computing means, and the trend data recorded in the management computer 5. In the radiation management facility according to claim 1, wherein the dosimeter transmits the measurement data to the management computer after verifying the soundness of the measurement data. Provide work support system.

  In the invention according to claim 6, the management computer includes a transmission unit that transmits the information to the dosimeter by wireless transmission when a radiation level high or the like occurs in a peripheral area of a work place, 6. The apparatus according to claim 1, further comprising: a sound generation device that generates an alarm when the information is received; and a display unit that displays an accused route of the worker, and supports the accused of the worker in an emergency. A work support system for the radiation management facility described is provided.

  According to the present invention, a dosimeter carried by a worker in a radiation control area, a tag plate with an identification tag number attached to a work target device in the radiation control area, and installed in a radiation non-control area Through the wireless communication of the management computer, the workers can support various kinds of work such as judgment of work target equipment, work route instruction, inspection route instruction, work history management, data calibration and radiation high alarm. Therefore, even a relatively inexperienced worker can perform the work reliably and efficiently based on the above-mentioned support, eradicating the operator's work mistakes, improving the worker's work efficiency, reducing the worker's exposure, etc. It will surely be possible.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  First, the system configuration will be described with reference to FIGS. FIG. 1 shows a configuration of a dosimeter carried by a worker in a radiation control area, and FIG. 2 shows a configuration of the entire system including a management computer and a work target device connected to the dosimeter by radio communication means. ing.

  As shown in these drawings, the system of this embodiment includes a dosimeter 1 carried by a worker in a radiation management area, and a management computer 2 (operation management computer 2a and radiation management) installed in a radiation non-management area. Computer 2b) and a tag (TAG) plate 3 attached to a work target device in the radiation control area.

  The dosimeter 1 includes a dosimeter main body 4, a display unit 5, and a sound generator 6. The dosimeter body 4 includes a CPU 7 as a main arithmetic unit, an analog / digital (AD) converter (APD) 8 that converts an analog signal into a digital signal, a memory (RAM) 9, and a computer as a wireless communication means A radio interface (I / F) 10 and a tag plate radio interface (I / F) 11 and a radiation unit interface 13 for performing a wired connection with a radiation measurement unit 12 such as an area monitor installed in a radiation management area I have. The dosimeter body 4 has a small size, for example, a width of 80 mm, a height of 80 mm, and a thickness of 10 mm, so that it can be easily carried.

  The display unit 5 has a function of displaying characters, graphics, and the like according to commands from the CPU 7 and is configured to allow an input operation with the touch pen 14. The sound generator 6 can generate a language, an alarm, and the like according to a command from the CPU 7.

  The business management computer 2a is mainly intended for work progress management, and is related to support for prevention of work mistakes and improvement of work efficiency by confirming work workers, work target devices, work contents, etc. It has functions for information input / output, calculation, management, etc., and is connected to the dosimeter 1 via a wireless communication means (not shown). The radiation management computer 2b is mainly intended for radiation management support for reducing the exposure of workers, calibrating the detector of the radiation measurement unit 12, and blame / guidance in case of high radiation level around the work place. And is connected to the dosimeter 1 through wireless communication means (not shown).

  These management computers 2 have a plurality of databases. That is, a device database 15 that records information such as tag numbers, delivery dates, and manufacturers for each work device, a worker database 16 that records regular information such as IDs related to workers, department names, registration dates, Work list database 17 that records work dates related to work contents, names of persons in charge, equipment tags, etc., work history database 18 that records tags related to work history, work dates, measurement data, correction data, inspection histories, etc., radiation units ID, work day, exposure dose on the day, exposure volume database 19 that records data such as weekly or monthly total dose, building database 20 that records information such as floor, position, measurement unit number, etc. Record measurement unit number, measurement date and time, dose, calibration date, calibration ID, calibration data, etc. Dose database 21 or the like is provided.

  These databases 15 to 21 are, for example, databases that record work contents for devices such as an indicator 22 and a valve 23 installed in a radiation management area and directions to a work place where the devices are installed. , A database that records the tag number of the tag plate 3 and the shortest route to the work location of the corresponding device, a database that records the tag number of the device to be worked on every work day, and work from the information Abnormal information recording database that records abnormal information on the target device or its surroundings along with its causes and countermeasures, an abnormal history search database that records abnormal information as a history based on related work contents and work results, etc. It functions as a specific work-related database.

  When the work content is inputted from the display unit of the dosimeter 1 by the touch pen 14 at the entrance of the work place at the entrance of the work place, it is transmitted from the management computer 2 to the dosimeter 1 by wireless communication in advance. The route to the work place is displayed on the display unit 5 of the dosimeter 1 based on the information of the database or based on the information of the database transmitted from the management computer 2 by wireless communication at the time of work content input. Yes.

  Further, when a tag number is input from the display unit 5 of the dosimeter 1 by the touch pen 14 when working with a plurality of devices, it is based on the database information transmitted from the business management computer 2a to the dosimeter 1 by wireless communication in advance. Alternatively, the shortest route to the work place is displayed on the display unit 5 of the dosimeter 1 based on the information in the database transmitted from the management computer 2 by wireless communication when inputting the work content.

  Further, the business management computer 2a allows the device corresponding to the tag number of the tag plate 3 input by the touch pen 14 on the day of work based on the information in the database in which the tag number of the device to be worked is recorded. It has a judging means for judging whether or not it is a target device. When the dosimeter 1 approaches the work equipment during work in the radiation control area, the tag number of the tag plate 3 of the approaching equipment is automatically read by the dosimeter 1 through wireless communication, and the read information Is transmitted to the business management computer 2a, and it is determined by the judging means provided in the business management computer 2a whether or not the device with the tag number is a work target device. Then, the determination result is wirelessly communicated to the dosimeter 1, and the operator is notified by the display unit 5 and the sound generator 6 provided in the dosimeter 1.

  Work items in the radiation control area include: (1) Calibration of detectors such as radiation measurement units in nuclear reactors, fuel reprocessing plants, fuel production departments, etc. (2) Pressure gauges, thermometers, etc. as process instrumentation Check the accuracy of the indicator 22, measure water, waste, measure the flow rate of water, pressure in the tank, etc. (3) Check for abnormalities in various valves 23, check the operation, check the water in the pool system, etc. It is done.

  In addition, the management computer 2 includes daily work report creation means for creating a daily work report by recording information related to the work results transmitted from the dosimeter 1, and abnormal information on the work target device or its surroundings from the information. It has an abnormality information recording database that records together with causes and countermeasures, and an abnormality history search database that records abnormal information as a history based on related work contents and work results.

  After the maintenance / inspection work is completed, a daily work report can be automatically created by the management computer 2 and, when abnormality information is recorded, the cause of the abnormality is supported. It has become.

  Further, when the work target device is a radiation measurement unit installed in a radiation management area, only sound measurement data can be transmitted from the dosimeter 1 to the radiation management computer 2b. . That is, the dosimeter 1 includes a connection unit that connects to a radiation dose equivalent calculation unit provided in the radiation measurement unit 12, a data calibration unit that calibrates radiation measurement data using the calculation unit, Measurement data soundness evaluation means for evaluating soundness of measurement data by comparison with trend data recorded in the radiation management computer 2b is provided. Thereby, the dosimeter 1 can transmit sound measurement data to the radiation management computer 2b after verifying the soundness of the measurement data.

  Furthermore, the radiation management computer 2b includes transmission means for transmitting the information to the dosimeter 1 by wireless transmission when a radiation level high or the like occurs in the peripheral area of the work place. The dosimeter 1 can generate an alarm from the sound generator 6 and can display the worker's evacuation route by the display unit 5 when receiving information such as high radiation level. As a result, it is possible to support the evacuation of workers in an emergency.

  Next, a work support method by the system of this embodiment will be described with reference to FIGS.

  FIG. 3 shows a process of performing a series of work support such as support by confirming a work schedule, support by notification of a work route and a route to a work place, support for selecting a work target device, support for work and daily report creation, and the like. It is a flowchart which shows.

  First, a worker (hereinafter also referred to as “worker” for short) inputs the work contents of the work day in advance to the memory of the dosimeter 1 from the management computer. In actual equipment work, the inspection equipment / work contents are selected from the display unit 5 of the dosimeter 1 by the touch pen 14 at the entrance of the work place (S101).

  In this case, the selected work content and the worker ID are transmitted to the management computer 2 by wireless communication (S102). Then, a determination is made as to whether the work content of the day and the worker match the schedule (S103). If the worker does not match the work contents, NG is displayed and sound is generated on the display unit 5 of the dosimeter 1 (S104). This prevents the operator from mistakenly handling the equipment.

  When the worker and the work content match, the shortest path data to the work place is transmitted from the management computer to the dosimeter 1 and displayed on the display unit 5 (S105). In this case, the worker proceeds while confirming the displayed route (S106), and can efficiently reach the predetermined work place through the shortest route without getting lost in the middle.

  In addition, when inspecting a plurality of devices, for example, when performing a total inspection work of field devices such as control valves, only by selecting the tag number of the target device from the display unit of the dosimeter 1 with a touch pen, It is also possible to instruct the operator of the shortest route of the inspection route via the display unit. As a result, when performing work for a plurality of devices, the work can be performed in the shortest time.

  Next, after arriving at the work location, the worker selects a work item from the display unit 5 with the touch pen 14 (S107). When the work item is selected, the tag number of the tag plate 3 of the work target device that has approached by wireless communication is automatically read by the dosimeter 1 via the tag plate wireless interface 11 of the dosimeter 1 possessed by the worker (S108). ).

  Then, the worker ID registered in the dosimeter 1 and the tag data of the work target device are transmitted to the management computer (S109), and the worker and the tag data of the work target device on the day are collated ( S110).

  In this verification, when the operator and the tag number of the work target device on the day do not match, NG is displayed on the display unit of the dosimeter 1 and sound is generated (S111). Therefore, the operator can determine whether or not the inspection object is close to the device, and erroneous inspection work is surely prevented.

  In this verification, if the worker on the day matches the tag number of the work target device, the work is executed (S112).

  Next, it is determined whether there is an abnormality in the device (S113). If there is an abnormality, a history search for the related work content is performed based on the accumulated information of the work content and results, and the cause of the abnormality is supported (S114).

  If there is no abnormality, the work history is stored and transmitted to the management computer 2 (S115). Then, a daily work report is automatically created in the management computer 2 (S116).

  FIG. 4 is a flowchart showing the calibration work process of the detector of the radiation measurement unit (area monitor) 12.

  When the calibration work of the detector of the radiation measurement unit 12 is started (S201), the dosimeter 1 is connected to the calculation device that calculates the radiation dose equivalent of the radiation measurement unit 12 at the work site (S202).

  Then, data measurement and measurement are performed using the arithmetic unit of the radiation measurement unit 12 (S203).

  Further, the trend data stored in the radiation management computer 2b is compared with the measurement result, thereby verifying the soundness of the data (S204). Then, only the sound calibration data after verification is transmitted to the radiation management computer 2b (S205). Therefore, the reliability of the obtained data is ensured.

  FIG. 5 is a flowchart showing the support work when an event such as “high radiation level” occurs in which the radiation level becomes a predetermined value or more during the work.

  While each operation described above is in progress (S301), a high radiation level may occur in the work peripheral region (S302). In such a case, in this embodiment, the information is transmitted from the radiation management computer 2b to the dosimeter 1 by wireless transmission (S303). The dosimeter 1 generates an alarm in the sound generator and displays the evacuation route on the display unit (S304).

  Thus, according to the present embodiment, the worker can immediately notice an emergency situation by an alarm, and can quickly and safely leave the area according to the displayed evacuation route (S305), and exposure prevention can be surely achieved. It becomes like this.

  The present invention relates to work such as maintenance and inspection of a radiation control facility in a nuclear reactor, a fuel reprocessing factory, a fuel manufacturing factory, etc., and a dosimeter carried by a worker in the radiation control area, and a work target device in the radiation control area Through the tag plate with the identification tag number attached to and the wireless communication of the management computer installed in the non-radiation-controlled area, the workers are judged on the work target, work route instructions, and inspection routes. Support for various tasks such as management of work instructions, management of work history, data calibration, and high alarms, etc., so even relatively inexperienced workers can perform work reliably and efficiently based on the above support. Thus, it is possible to demonstrate the usefulness of reliably eradicating the operator's work mistakes, improving the worker's work efficiency, and reducing the worker's exposure.

The block diagram which shows the dosimeter by one Embodiment of this invention. 1 is a system configuration diagram showing a system according to an embodiment of the present invention. The flowchart which shows the work procedure based on the system by one Embodiment of this invention. The flowchart which shows the work procedure based on the system by one Embodiment of this invention. The flowchart which shows the work procedure based on the system by one Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Dosimeter 2 Management computer 2a Business management computer 2b Radiation management computer 3 Tag plate 4 Dosimeter body part 5 Display unit 6 Sound generator 7 CPU
8 AD converter (APD)
9 Memory 10 Computer radio interface 11 Tag plate radio interface 12 Radiation measurement unit 13 Radiation unit interface 14 Touch pen 15-21 Database

Claims (6)

A dosimeter carried by a worker in a radiation control area, and a management computer installed in a non-radiation control area, the dosimeter having a display unit capable of input operation with a touch pen, and the management computer The management computer is a database that records work contents intended for the equipment installed in the radiation control area and directions to the work place where the equipment is installed. When the work content is input from the display unit of the dosimeter by the touch pen at the entrance of the work place when the equipment is operated, the dosimeter is preliminarily transferred from the management computer to the dosimeter by wireless communication. Based on the transmitted information of the database or transmitted from the management computer by wireless communication at the time of the work content input Work support system in the radiation control facility, characterized in that based on the information of the database, the directions to the work site is displayed on the display unit of the dosimeter. A dosimeter carried by a worker in a radiation control area, a management computer installed in a non-radiation control area, and a tag plate attached to a work target device in the radiation control area, the dosimeter comprising: It has a display unit capable of input operation with a touch pen, and is connected to the management computer and the tag plate by wireless communication means, respectively, and the management computer has a tag number of the tag plate and a device corresponding thereto. And a database that records the shortest route to the work place. When the tag number is input from the display unit of the dosimeter by the touch pen when working with a plurality of devices, the management is performed in advance by wireless communication. Based on information in the database transmitted from the computer to the dosimeter, or when entering the work content Based on the information of the database to be transmitted from the management computer by wireless communication, operation support system in a radiation control facility, characterized in that the shortest route to the work place is displayed on the display unit of the dosimeter. A dosimeter carried by a worker in a radiation control area, a management computer installed in a non-radiation control area, and a tag plate attached to a work target device in the radiation control area, the dosimeter comprising: The management computer and the tag plate are connected to the management computer and the tag plate by wireless communication means, respectively, and the management computer has a tag number of the device to be worked on every work day. Based on the recorded database and information on this database, and having a determination means for determining whether or not the device corresponding to the tag number of the tag plate input by the touch pen on the day of work is the work target device, When the dosimeter approaches the work device during work in the radiation control area, the access device is wirelessly communicated. The tag number of the tag plate is automatically read by the dosimeter, the read information is transmitted to the management computer, and the device of the tag number is the work target by the determination means provided in the management computer Radiation management characterized in that it is determined whether or not it is a device, and the determination result is wirelessly communicated to the dosimeter and notified to the worker by a display unit and a sound generator provided in the dosimeter Work support system at the facility. The management computer includes a daily work report creating unit that records information on a work result transmitted from the dosimeter and creates a daily work report, and causes abnormal information on the work target device or its surroundings from the information and its cause and An abnormality information recording database that is recorded together with countermeasures, and an abnormality history search database that records and records the abnormality information as a history based on related work contents and work results, and is recorded daily by the management computer. The work support system in the radiation management facility according to any one of claims 1 to 3, which enables support for automatic creation of the above and investigation of the cause of the abnormality. The work target device is a radiation measurement unit installed in a radiation control area, and the dosimeter is connected to a radiation dose equivalent calculation unit provided in the radiation measurement unit; and the calculation Data calibration means for calibrating radiation measurement data using means, and measurement data health evaluation means for evaluating the health of measurement data by comparing with trend data recorded in the management computer, The work support system in a radiation management facility according to any one of claims 1 to 4, wherein the dosimeter transmits the measurement data to the management computer after verifying the soundness of the measurement data. The management computer includes transmission means for transmitting the information to the dosimeter by wireless transmission when a radiation level high or the like occurs in a peripheral area of the work place, and the dosimeter alarms when the information is received. A work support in a radiation management facility according to any one of claims 1 to 5, further comprising a sound generation device for generating a warning and a display means for displaying a worker's blame path, which supports the blame of the worker in an emergency. system.

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