Measurement value recording device, radiation measurement recording system, measurement value recording method and program

Abstract

To provide a measurement value recording device, radiation measurement recording system, measurement value recording method and program that can reduce a radiation exposure dose of a measurer measuring radiation.SOLUTION: A measurement value recording device to be carried by a measurer measuring a level of radiation in a nuclear power plant comprises: a measurement value acquisition unit that acquires a measurement value indicative of the level of the radiation; a measurement location acquisition unit that acquires information indicative of a measurement location in the nuclear power plant; a recording unit that stores, in association with each other, the measurement value acquired by the measurement value acquisition unit and the information indicative of the measurement location acquired, related to the acquisition of the measurement value, by the measurement location acquisition unit; and a determination unit that determines whether or not the measurement value acquired by the measurement value acquisition unit exists within an allowance range based on a reference value associated with the information indicative of the measurement location acquired, related to the acquisition of the measurement value, by the measurement location acquisition unit, and when determining that it does not exist, performs prescribed notification processing.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present disclosure relates to a measurement value recording device, a radiation measurement recording system, a measurement value recording method, and a program. [Background technology]

[0002] Nuclear power plants periodically stop operation and undergo so-called periodic inspections. Periodic inspections include, for example, inspection of equipment, inspection, replacement, and maintenance of fuel and consumables. In order to check that the conditions in the work areas where these tasks are performed are safe for people to enter, radiation levels are measured at various locations within the nuclear power plant facilities before the tasks are performed.

[0003] A radiation measuring device is used to measure the radiation level, but the measurement range of a typical radiation measuring device is narrow, 1.5 to 2 m. Therefore, it is necessary to bring the radiation measuring device close to the measurement object so that the distance from the measurement object is 1.5 to 2 m or less. In addition, wireless communication cannot be used in the nuclear power plant facility to prevent malfunction of solenoid valves, control panels, etc., so it is not possible to perform measurements by remote control using wireless communication, for example. In addition, some of the places in the nuclear power plant facility where radiation measurement is required are narrow places where it is difficult for a patrol robot to move around.

[0004] In such places, radiation control personnel (hereafter referred to as radiation control personnel) enter the nuclear power plant facility, approach the measurement object until they are within 1.5 to 2 meters of the object, and then use a radiation measuring device to measure it. Furthermore, due to the restriction that radiation control personnel cannot use wireless communication as mentioned above, they cannot wirelessly transmit the measured values ​​obtained by the measurement to have someone else record them, so they record the measured values ​​on a recording sheet with a writing implement at the measurement location. If one radiation control personnel were to perform both the measurement and recording tasks, it would take time and increase the radiation control personnel's exposure, so two radiation control personnel are assigned, one to measure and the other to record. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2013-242176 A Summary of the Invention [Problem to be solved by the invention]

[0006] If the time required for recording could be shortened, one radiation manager who measures the radiation could also perform the recording work, thereby reducing the number of radiation managers exposed to radiation. One possible means for shortening the time required for recording is, for example, electronically recording the measured radiation values ​​using a computer or the like. For example, Patent Document 1 discloses a technology for electronically recording the measured radiation values. However, the technology disclosed in Patent Document 1 uses wireless communication because it is intended to measure radiation over a wide area outside the nuclear power plant facilities.

[0007] Therefore, this technology cannot be used as it is within the facilities of a nuclear power plant, but for example, a recording device that integrates a personal computer 107 and a mobile terminal 101 as shown in Fig. 10 of Patent Document 1 and is small enough to be carried by a person who measures the radiation can be made to carry the recording device and the radiation measuring device 100 by connecting the recording device and the radiation measuring device 100 by wire, allowing a single person to carry both the recording device and the radiation measuring device 100 and perform both measurement and recording.

[0008] After completing the measurement and recording, the person who performs the measurement leaves the facility and has the measurement values ​​checked by an experienced radiation control officer. During this check, it may be found that the measurement values ​​measured this time are significantly different from the measurements taken during the previous periodic inspection at the measurement position where the measurement values ​​were obtained. In this case, if it is not clear whether the measurements measured this time are correct or there is a measurement defect, the person who performs the measurement must re-enter the facility to perform the measurement, which increases the person's radiation exposure.

[0009] The present disclosure has been made to solve the above-mentioned problems, and aims to provide a measurement value recording device, a radiation measurement recording system, a measurement value recording method, and a program that can reduce the amount of radiation exposure of an individual measuring radiation. [Means for solving the problem]

[0010] In order to solve the above problems, the measurement value recording device of the present disclosure is a measurement value recording device carried by a measurer who measures radiation levels at a nuclear power plant, and includes a measurement value acquisition unit that acquires measurement values ​​indicating the radiation level, a measurement position acquisition unit that acquires information indicating the measurement position at the nuclear power plant, a recording unit that links the measurement value acquired by the measurement value acquisition unit to information indicating the measurement position acquired by the measurement position acquisition unit in association with the acquisition of the measurement value and records the linked measurement value in a memory unit, and a judgment unit that judges whether the measurement value acquired by the measurement value acquisition unit is within an acceptable range based on a reference value linked to the information indicating the measurement position acquired by the measurement position acquisition unit in association with the acquisition of the measurement value, and performs a predetermined notification process if it is determined that the measurement value is not within the acceptable range.

[0011] The radiation measurement and recording system according to the present disclosure is a radiation measurement and recording system comprising: a radiation measurement device carried by a measurer; and a measurement value recording device carried by the measurer who measures radiation levels using the radiation measurement device at a nuclear power plant, wherein the measurement value recording device comprises: a measurement value acquisition unit that acquires measurement values ​​indicating radiation levels measured by the radiation measurement device; a measurement position acquisition unit that acquires information indicating a measurement position at the nuclear power plant; a recording unit that links the measurement value acquired by the measurement value acquisition unit with information indicating the measurement position acquired by the measurement position acquisition unit in association with the acquisition of the measurement value, and records the linked measurement value in a memory unit; and a determination unit that determines whether the measurement value acquired by the measurement value acquisition unit is within an allowable range based on a reference value linked to the information indicating the measurement position acquired by the measurement position acquisition unit in association with the acquisition of the measurement value, and performs a predetermined notification process if it is determined that the measurement value is not within the allowable range in the determination.

[0012] The measurement value recording method of the present disclosure is a measurement value recording method for recording measurement values ​​indicating radiation levels measured in a nuclear power plant, and includes: a measurement value acquiring step of acquiring the measurement value; a measurement position acquiring step of acquiring information indicating the measurement position in the nuclear power plant; a recording step of linking the measurement value acquired by the measurement value acquiring step with information indicating the measurement position acquired by the measurement position acquiring step in relation to the acquisition of the measurement value and recording the linked measurement value in a memory unit; and a determination step of determining whether the measurement value acquired by the measurement value acquiring step is within an acceptable range based on a reference value linked to the information indicating the measurement position acquired by the measurement position acquiring step in relation to the acquisition of the measurement value, and performing a predetermined notification process if it is determined in the determination that the measurement value is not within the acceptable range.

[0013] The program of the present disclosure is a program for recording measurement values ​​indicating radiation levels measured at a nuclear power plant, and causes a computer to execute the following steps: a measurement value acquisition step for acquiring the measurement value; a measurement position acquisition step for acquiring information indicating the measurement position at the nuclear power plant; a recording step for linking the measurement value acquired by the measurement value acquisition step with information indicating the measurement position acquired by the measurement position acquisition step in relation to the acquisition of the measurement value and recording the linked measurement value in a memory unit; and a determination step for determining whether the measurement value acquired by the measurement value acquisition step is within an acceptable range based on a reference value linked to the information indicating the measurement position acquired by the measurement position acquisition step in relation to the acquisition of the measurement value, and performing a predetermined notification process if it is determined that the measurement value is not within the acceptable range in the determination. Effect of the Invention

[0014] According to the measurement value recording device, radiation measurement and recording system, measurement value recording method, and program disclosed herein, it is possible to reduce the amount of radiation exposure of a person who measures radiation. [Brief description of the drawings]

[0015] [Figure 1]1 is a block diagram showing an example of the configuration of a radiation measuring and recording system according to a first embodiment of the present disclosure. [Diagram 2] 1 is a block diagram showing an example of the configuration of a measurement value recording device according to a first embodiment of the present disclosure. [Diagram 3] FIG. 2 is a diagram showing an example of map information according to the first embodiment of the present disclosure. [Figure 4] 4 is a diagram showing a table configuration example (part 1) of a measurement value record table according to the first embodiment of the present disclosure. FIG. [Diagram 5] FIG. 4 is a diagram showing an example of a table configuration of an allowable error table according to the first embodiment of the present disclosure. [Figure 6] FIG. 2 is a diagram showing a configuration example (part 1) of a measurement value recording screen according to the first embodiment of the present disclosure. [Figure 7] 4 is a flowchart (part 1) showing an operation example of the measurement value recording device according to the first embodiment of the present disclosure. [Figure 8] 6 is a flowchart (part 2) showing an example of the operation of the measurement value recording device according to the first embodiment of the present disclosure. [Figure 9] FIG. 4 is a diagram showing a second example of a table configuration of a measurement value record table according to the first embodiment of the present disclosure. [Figure 10] FIG. 11 is a diagram showing a configuration example (part 2) of a measurement value recording screen according to the first embodiment of the present disclosure. [Figure 11] FIG. 11 is a diagram showing a third example of a table configuration of a measurement value record table according to the first embodiment of the present disclosure. [Figure 12] FIG. 13 is a diagram showing a configuration example (part 3) of a measurement value recording screen according to the first embodiment of the present disclosure. [Figure 13] FIG. 11 is a block diagram showing an example of the configuration of a measurement value recording device according to a second embodiment of the present disclosure. [Figure 14] 13 is a diagram showing an example of a table configuration of a measurement value record table according to a second embodiment of the present disclosure. FIG. [Figure 15] 10 is a flowchart showing an example of the operation of a measurement value recording device according to a second embodiment of the present disclosure. [Figure 16]FIG. 13 is a diagram showing another example configuration of the measurement value recording screen according to the first and second embodiments of the present disclosure. [Figure 17] FIG. 1 is a schematic block diagram illustrating a configuration of a computer according to at least one embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] Hereinafter, a measurement value recording device, a radiation measurement and recording system, a measurement value recording method, and a program according to embodiments of the present disclosure will be described with reference to the drawings. Note that in each drawing, the same or corresponding components are designated by the same reference numerals and descriptions thereof will be omitted as appropriate.

[0017] First Embodiment (Configuration of the Radiation Measuring and Recording System According to the First Embodiment) Fig. 1 is a block diagram showing a configuration example of a radiation measurement and recording system 1 according to a first embodiment of the present disclosure. The radiation measurement and recording system 1 shown in Fig. 1 includes a radiation measurement device 7, a measurement value recording device 2, an earphone 4, and a microphone 5. Note that reference numeral 100 denotes a person who measures, and will be referred to as "measurer 100" hereinafter.

[0018] The radiation measuring device 7 is a radiation measuring device such as an ionization chamber type that is sold on the general market, and measures the level of radiation, for example, the radiation dose. Here, the radiation dose may be an amount expressed as a dose rate, which is a dose per unit time, or an amount expressed as a total dose for a predetermined time. The radiation measuring device 7 is provided with a grip so that the person 100 can hold it in one hand, for example, and the grip portion is provided with a button that measures the level of radiation when pressed. When the person 100 presses the button, the radiation measuring device 7 measures the level of radiation, and displays the measured value obtained by the measurement on the display 8.

[0019] 1, the earphones 4 and the microphone 5 are integrally formed as an ear set such that when the earphones 4 are inserted into the ears of the subject 100, the microphone 5 is positioned at a position where it can collect the speech of the subject 100. The earphones 4 and the microphone 5 are connected to the measurement recorder 2 via a connection cable 6. The earphones 4 convert the audio signal output by the measurement recorder 2 into audio and output it. The microphone 5 collects the speech of the subject 100, converts the collected speech into an audio signal, and outputs it to the measurement recorder 2.

[0020] Measurement value recording device 2 can be configured using, for example, a computer such as a personal computer or a microcomputer, peripheral devices of the computer, and more specifically, a device such as a tablet PC (Personal Computer) that can be held in one hand by subject 100. A strap may be attached to measurement value recording device 2 so that it can be hung around the neck of subject 100.

[0021] The measurement value recording device 2 has a functional configuration consisting of a combination of hardware such as a computer and peripheral devices of the computer, and software such as a program executed by the computer, and as shown in Figure 2, it has an operation unit 10, a memory unit 11, a recording unit 12, a display processing unit 13, an interface unit 14, a voice output unit 15, a voice recognition unit 16, a measurement position acquisition unit 17, a measurement value acquisition unit 18 and a judgment unit 19.

[0022] Operation unit 10 is, for example, a touch panel provided so as to be overlaid on display screen 3 in measurement value recording device 2. Operation unit 10 detects an operation of subject 100 on the touch panel, and performs processing corresponding to the detected operation. For example, when subject 100 performs an operation of selecting with his / her finger a predetermined location indicated by an image of a button displayed on display screen 3, operation unit 10 detects the operation and performs various processes associated with the selected predetermined location.

[0023] Storage unit 11 stores map information 30-1 to 30-M, measurement value recording tables 40-1 to 40-N, and allowable error table 41. Here, M is an integer greater than or equal to 1. N will be an integer greater than or equal to 1 after at least one regular inspection has been performed, but in the initial state where no regular inspection has been performed, measurement value recording tables 40-1 to 40-N do not need to exist.

[0024] FIG. 3 is a diagram showing map information 30-m, which is an example of map information 30-1 to 30-M (where m is any integer between 1 and M). Map information 30-m is, for example, map information showing a plan view of A-steam generator, which is one of the measurement locations in the facility of a nuclear power plant, seen from above, and shows the equipment and the like disposed in A-steam generator. In map information 30-m, five locations with numbers 1 to 5 inside circles indicate measurement locations where predetermined radiation levels are measured at the measurement location, A-steam generator. Hereinafter, circle 1 will be represented as measurement location "1," and the remaining circles 2 to 5 will be represented in the same manner.

[0025] Each of the map information 30-1 to 30-M is associated with information indicating a measurement location within the facility of the corresponding nuclear power plant and the number of measurement positions at the measurement location. Therefore, the map information 30-m is associated with "A-steam generator" as information indicating the measurement location, and "5" as the number of measurement positions. Note that the number of measurement positions shown in FIG. 3 is an example, and one or more measurement positions are predefined at each measurement location.

[0026] FIG. 4 is a diagram showing a measurement value recording table 40-n which is an example of the measurement value recording tables 40-1 to 40-N (where n is any integer between 1 and N). The measurement value recording table 40-n has the following items: "Table ID (Identification)", "Measurement Date", "Measurement Location", "Measurement Position", "Reference Value", and "Measurement Value". In the "Table ID" item, identification information that can identify each of the measurement value recording tables 40-1 to 40-N and is assigned to the measurement value recording table 40-n is recorded. In the "Measurement Date" item, information indicating the time when the measurement value recorded in the measurement value recording table 40-n was measured is recorded. Here, it is described that the date is recorded as the information indicating the time when the measurement was performed, but the information indicating the time when the measurement was performed may further include hours, minutes, and seconds. In the "Measurement Location" item, information indicating the measurement location where the measurement value recorded in the measurement value recording table 40-n was measured is recorded.

[0027] Each of the items "measurement location", "reference value", and "measurement value" is divided into cells whose number corresponds to the number of measurement locations predefined at the measurement location indicated in the "measurement location" item. In each cell of the "measurement location" item, a consecutive number starting from 1 indicating the measurement location is recorded in sequence from the leftmost cell. For example, if there are five measurement locations, the numbers 1, 2, 3, 4, and 5 are recorded in sequence from the leftmost cell of the "measurement location" item as shown in FIG. 4. In each cell of the "reference value" item, a reference value that serves as a criterion for judgment at the corresponding measurement location is recorded. In each cell of the "measurement value" item, a measurement value indicating the level of radiation measured at the corresponding measurement location is recorded.

[0028] FIG. 5 is a diagram showing an allowable error table 41, in which a ratio indicating an allowable error of a measurement value measured by the radiation measurement device 7 (hereinafter referred to as an allowable error rate) is recorded, for example, as a percentage value.

[0029] Returning to Fig. 2, the recording unit 12 generates measurement value recording tables 40-1 to 40-N in the memory unit 11, and records measurement values ​​and the like in the generated measurement value recording tables 40-1 to 40-N. The display processing unit 13 displays a screen including map information 30-1 to 30-M on the display screen 3 of the measurement value recording device 2, and displays a measurement value recording screen 50 shown in Fig. 6 which is generated based on the contents of each of the measurement value recording tables 40-1 to 40-N.

[0030] The interface unit 14 is connected to the earphones 4 and the microphone 5 via a connection cable 6, and outputs audio signals to the earphones 4 and captures audio signals output by the microphone 5. The audio output unit 15 pre-stores audio signals linked to the types of audio output instruction signals in an internal storage area, and upon receiving an audio output instruction signal, outputs an audio signal corresponding to the type of the received audio output instruction signal to the earphones 4 via the interface unit 14.

[0031] The voice recognition unit 16 performs voice recognition processing on the voice signal captured by the interface unit 14. Here, the voice recognition processing is, for example, processing of recognizing words contained in the voice signal and converting the recognized words into text data, and this text data becomes the result of the voice recognition processing (hereinafter, referred to as the voice recognition result). The voice recognition unit 16 judges the voice recognition result and selects an output destination according to the judgment result. The voice recognition unit 16 outputs various signals according to the judgment result to the selected output destination.

[0032] When the measurement position acquisition unit 17 receives a measurement position acquisition instruction signal with an output destination specified from the voice recognition unit 16, it acquires, as information indicating the measurement position, a number indicating the measurement position corresponding to the position of the cursor 51 displayed on the measurement value recording screen 50 at the time of receiving the signal, and the table ID of the measurement value recording tables 40-1 to 40-M from which the measurement value recording screen 50 was generated. The measurement position acquisition unit 17 outputs the acquired information indicating the measurement position to the output destination specified in the measurement position acquisition instruction signal.

[0033] When the measurement value acquiring unit 18 receives a measurement value notification signal from the voice recognition unit 16, it acquires the measurement value contained in the received measurement value notification signal. The judgment unit 19 judges whether or not the measurement value acquired by the measurement value acquiring unit 18 is within an allowable range based on a reference value corresponding to the measurement value. Here, the allowable range is a range calculated based on the allowable error rate stored in the allowable error table 41 and the reference value.

[0034] (Example of operation of the measurement value recording device according to the first embodiment) 7 and 8 are flow charts showing an example of the operation of the measurement value recording device 2 according to the first embodiment, and in Fig. 7 and Fig. 8, the connection point indicated by a circle A indicates that the process of S7 in Fig. 7 is followed by the process of S10 in Fig. 8. Here, it is assumed that a plurality of pieces of map information 30-1 to 30-M are stored in the memory unit 11. It is also assumed that a regular inspection has been performed in the past, and a plurality of measurement value recording tables 40-1 to 40-(n-1) are stored in the memory unit 11. It is also assumed that an application program for recording measurement values ​​has been started in the measurement value recording device 2, and an initial setting screen of the application program is displayed on the display screen 3.

[0035] 7 is started. For example, before entering the facilities of a nuclear power plant, the measurer 100 operates the operation unit 10 to select a specific location included in an initial setting screen. When the operation unit 10 detects this operation, it outputs a display instruction signal that is linked to the selected specific location and causes a tolerance setting screen used to set a tolerance to be displayed to the display processing unit 13. When the display processing unit 13 receives this display instruction signal, it displays the tolerance setting screen on the display screen 3.

[0036] The measurer 100 performs an operation to input the allowable error rate of the measurement value measured by the radiation measuring device 7, which is understood from the specifications of the radiation measuring device 7 to be used, into the input field of the allowable error setting screen. Note that, as shown in the map information 30-m in FIG. 3, the positions of the symbols of measurement position "1" to measurement position "5" indicate approximate positions, not exact positions, and the measurer 100 may be located in a slightly different place for each measurement. Therefore, since measurement errors occur due to differences in the positions where the measurer 100 measures, the measurer 100 may write an allowable error rate determined in consideration of errors due to differences in the measurement positions, instead of directly inputting the allowable error rate in the specifications of the radiation measuring device 7 into the input field.

[0037] When the operation unit 10 detects the operation, it outputs a recording instruction signal including the allowable error rate written in the input field to the recording unit 12. When the recording unit 12 receives the recording instruction signal, it generates an allowable error table 41 in the storage unit 11 and records the allowable error rate included in the received recording instruction signal in the generated allowable error table 41 (S1). Here, it is assumed that "10%" is recorded as the allowable error in the allowable error table 41, as shown in Fig. 5.

[0038] When the recording unit 12 records the allowable error rate in the allowable error table 41 of the storage unit 11, it outputs a display instruction signal to the display processing unit 13 to display a measurement date and measurement location setting screen used to set the measurement date and measurement location. When the display processing unit 13 receives the display instruction signal, it displays the measurement date and measurement location setting screen on the display screen 3. The measurer 100 performs an operation to write the date indicating the measurement date and information indicating the measurement location in the input field of the measurement date and measurement location setting screen (S2). Here, it is assumed that "X month Y day, 2023" is written as the date indicating the measurement date, and "A-steam generator" is written as the information indicating the measurement location. Note that the date indicating the measurement date may be selected, for example, from a calendar screen displayed separately, and the information indicating the measurement location may be selected, for example, from a menu screen displaying a list of measurement locations displayed separately.

[0039] When the operation unit 10 detects the operation, it outputs a table generation instruction signal to the recording unit 12, including the date indicating the measurement date written in the input field and information indicating the measurement location. When the recording unit 12 receives the table generation instruction signal, it generates a new table ID. Here, it is assumed that the recording unit 12 generates "000010" as the new table ID. The recording unit 12 generates a new measurement value recording table 40-n in the memory unit 11. The recording unit 12 records the generated table ID in the "table ID" field of the generated measurement value recording table 40-n, records the date indicating the measurement date included in the table generation instruction signal in the "measurement date" field, and records information indicating the measurement location included in the table generation instruction signal in the "measurement location" field.

[0040] The recording unit 12 selects map information 30-m linked to "A-Steam Generator" recorded in the "Measurement Location" item from among the map information 30-1 to 30-M stored in the memory unit 11. The recording unit 12 detects "5", which is the number of measurement positions linked to the selected map information 30-m. In accordance with the detected number of measurement positions "5", the recording unit 12 generates five cells in each of the items "Measurement Location", "Reference Value", and "Measurement Value" in the generated measurement value record table 40-n, and writes consecutive numbers from 1 to 5 in order from the leftmost cell into each of the generated "Measurement Location" cells (S3).

[0041] The recording unit 12 selects one of the measurement value recording tables 40-1 to 40-(n-1) stored in the memory unit 11, in which the item "measurement location" is "A-steam generator" and the date in the item "measurement date" is closest to "X month Y day, 2023" (S4). Here, as an example, it is assumed that the recording unit 12 selects the measurement value recording table 40-1 shown in FIG. 9. In other words, the measurement value recording table 40-1 selected by the recording unit 12 is a table generated by the recording unit 12 at the measurement location "A-steam generator" during the previous regular inspection.

[0042] The recording unit 12 records each of the measurement values ​​for each measurement position recorded in the "Measurement value" item of the selected measurement value recording table 40-1 in a cell in the "Reference value" item of the newly generated measurement value recording table 40-n, which cell has the same measurement position number as the corresponding measurement value (S5). As a result, the contents of the measurement value recording table 40-n generated in the memory unit 11 become as shown in Fig. 4. Note that the "-" shown in each cell in the "Measurement value" item of the measurement value recording table 40-n in Fig. 4 means that the cell is blank.

[0043] The recording unit 12 outputs a display instruction signal for displaying a map display screen including the map information 30-m selected in the processing of S3 to the display processing unit 13. Upon receiving the display instruction signal, the display processing unit 13 reads out the map information 30-m from the storage unit 11, and displays the map display screen including the read out map information 30-m on the display screen 3 (S6).

[0044] The recording unit 12 outputs a display instruction signal including the table ID "000010" of the measurement value recording table 40-n to the display processing unit 13. The display processing unit 13 takes in the display instruction signal output by the recording unit 12, and selects from the storage unit 11 the measurement value recording table 40-n corresponding to the table ID "000010" included in the taken-in display instruction signal. The display processing unit 13 reads out information recorded in the items "measurement date," "measurement location," "measurement position," "reference value," and "measurement value" of the selected measurement value recording table 40-n, and generates a measurement value recording screen 50 based on the read out information. The display processing unit 13 links the table ID "000010" included in the display instruction signal to the generated measurement value recording screen 50.

[0045] The display processing unit 13 displays the generated measurement value recording screen 50 on the display screen 3. As shown in FIG. 6, the display processing unit 13 displays a cursor 51 in a cell of the "measurement value" item in the same row as the cell in which the "measurement position" item is set to "1" on the measurement value recording screen 50. It is assumed that the position where the cursor 51 is initially displayed is the position of the cell of the "measurement value" item in the same row as the cell in which the "measurement position" item is set to "1", which is predetermined by the display processing unit 13. The display processing unit 13 further displays a button indicating the start of operation by voice (hereinafter referred to as the voice operation start button) at a predetermined position on the display screen 3 (S7). As a result, the display screen 3 of the measurement value recording device 2 displays a map display screen including the map information 30-m shown in FIG. 3, the measurement value recording screen 50 shown in FIG. 6, and the voice operation start button.

[0046] 1, the person making the measurement 100 inserts earphones 4 into his / her ears, and carrying the measurement value recording device 2 and the radiation measurement device 7, enters the nuclear power plant facility and proceeds to the measurement location, "A-steam generator." With reference to the map information 30-m displayed on the display screen 3, the person making the measurement 100 proceeds further to measurement position "2" in order to first perform a measurement at measurement position "2."

[0047] The subject 100 operates the operation unit 10 to select a voice operation start button displayed on the display screen 3 of the measurement value recording device 2. When the operation unit 10 detects this operation, it outputs a voice output instruction signal indicating the start of the voice operation linked to the selected voice operation start button to the voice output unit 15. Upon receiving this voice output instruction signal, the voice output unit 15 outputs a start instruction signal to the voice recognition unit 16. Upon receiving the start instruction signal from the voice output unit 15, the voice recognition unit 16 enters a state of waiting for a voice signal to be supplied from the interface unit 14.

[0048] The audio output unit 15 selects an audio signal corresponding to an audio output instruction signal indicating the start of audio operation from an internal storage area, and outputs the selected audio signal to the earphone 4 via the interface unit 14. When the earphone 4 receives the audio signal output by the audio output unit 15, it converts the received audio signal into audio and outputs, for example, a voice saying, "Audio operation is about to begin. Please select a measurement position" (S10).

[0049] Here, as described in the process of S7, the cursor 51 is displayed in the cell of the "measurement value" item in the same row as the cell of the "measurement position" item of the measurement value recording screen 50 with "1" as shown in FIG. 6. As described above, the subject 100 performs the measurement at the measurement position "2", so the subject 100 needs to move the position of the cursor 51 to the cell below with "2" in the "measurement position" item. Therefore, the subject 100 utters "down (shita)", which means a downward movement. Note that "shita" in parentheses indicates the actual utterance content, and the actual utterance content of other utterances is also indicated in parentheses as necessary. The microphone 5 collects the utterance of "down" by the subject 100, converts the collected utterance into a voice signal, and outputs it to the voice recognition unit 16 via the interface unit 14. The voice recognition unit 16 takes in the voice signal output by the microphone 5, and performs voice recognition processing on the taken voice signal to obtain a voice recognition result (S11).

[0050] The voice recognition unit 16 judges from the voice recognition result whether the content of the voice signal is related to the measurement position, the measurement value, or the end (S12). For example, if the content of the voice signal indicates a direction such as "up" meaning an upward movement or "down" meaning a downward movement, the voice recognition unit 16 judges that the content of the voice signal is related to the measurement position. If the content of the voice signal is a content indicating the wording "measurement value" followed by a numerical value, the voice recognition unit 16 judges that the content of the voice signal is related to the measurement value. If the content of the voice signal includes the wording "end", the voice recognition unit 16 judges that the content of the voice signal is related to the end.

[0051] In this case, since the content of the voice signal indicates the direction "down", the voice recognition unit 16 determines that the content of the voice signal is related to the measurement position (S12, content related to the measurement position) and selects the display processing unit 13 as the output destination. The voice recognition unit 16 outputs a movement instruction signal to the display processing unit 13 selected as the output destination to move the position of the cursor 51 on the measurement value recording screen 50 to the cell one cell below. When the display processing unit 13 receives the movement instruction signal output by the voice recognition unit 16, it performs a process of moving the cursor 51 on the measurement value recording screen 50 to the cell one cell below, that is, to the cell in the "measurement value" item in the same row as the cell in which the "measurement position" item is "2", and displaying it (S13). Thereafter, in the process of S11, the voice recognition unit 16 enters a state of waiting for the voice signal generated from the next utterance of the subject 100 to be given.

[0052] When the position of cursor 51 on measurement value recording screen 50 moves to the cell of the "Measurement value" item in the same row as the cell with measurement position "2", measurer 100 presses the grip button of radiation measuring device 7. This causes radiation measuring device 7 to measure the radiation level and display the measurement value obtained by the measurement on display 8. Here, it is assumed that the measurement value "8.00" is displayed on display 8.

[0053] The subject 100 refers to "8.00" displayed on the display 8 and utters "measurement value 8.00 (zero zero)." The microphone 5 collects the speech of the subject 100, "measurement value 8.00," converts the collected speech into a voice signal, and outputs it to the voice recognition unit 16 via the interface unit 14. Thereafter, the processes of S11 and S12 are performed on the voice signal corresponding to the utterance "measurement value 8.00." Here, the content of the voice signal is the wording "measurement value" followed by the numerical value "8.00," so the voice recognition unit 16 determines that the content of the voice signal is content related to a measurement value (S12, content related to a measurement value).

[0054] In this case, the voice recognition unit 16 selects as output destinations the measurement value acquisition unit 18 and the measurement position acquisition unit 17. The voice recognition unit 16 sets the numerical value "8.00" included in the voice recognition result as the measurement value, and outputs a measurement value notification signal including the measurement value to the measurement value acquisition unit 18. The measurement value acquisition unit 18 captures the measurement value notification signal output by the voice recognition unit 16, and acquires the measurement value "8.00" included in the captured measurement value notification signal (S14-1).

[0055] The voice recognition unit 16 outputs a measurement position acquisition instruction signal specifying the measurement position acquisition unit 18 as the output destination to the measurement position acquisition unit 17. When the measurement position acquisition unit 17 receives the measurement position acquisition instruction signal, it outputs an acquisition request signal to the display processing unit 13 requesting acquisition of a number indicating the measurement position corresponding to the position of the cursor 51. When the display processing unit 13 receives the acquisition request signal output by the measurement position acquisition unit 17, it acquires the table ID "000010" linked to the measurement value recording screen 50. The display processing unit 13 detects the position where the cursor 51 is displayed on the measurement value recording screen 50, and detects "2" displayed in the cell of the "measurement position" item in the same row as the detected position as the number indicating the measurement position.

[0056] The display processing unit 13 outputs an acquisition response signal including the number "2" indicating the detected measurement position and the acquired table ID "000010" to the measurement position acquisition unit 17. The measurement position acquisition unit 17 captures the acquisition response signal output by the display processing unit 13, and acquires the number "2" indicating the measurement position and the table ID "000010" from the captured acquisition response signal. The number "2" indicating the measurement position and the table ID "000010" become information indicating the measurement position acquired by the measurement position acquisition unit 17. The measurement position acquisition unit 17 outputs a measurement position notification signal including information indicating the acquired measurement position to the measurement value acquisition unit 18 specified as the output destination in the measurement position acquisition instruction signal (S14-2).

[0057] The measurement value acquiring unit 18 acquires the measurement position notification signal output by the measurement position acquiring unit 17, and acquires information indicating the measurement position from the acquired measurement position notification signal, i.e., the number "2" indicating the measurement position and the table ID [000010]. The measurement value acquiring unit 18 associates the measurement value "8.00" with the number "2" indicating the measurement position, and outputs them to the display processing unit 13. The measurement value acquiring unit 18 associates the measurement value "8.00", the table ID "000010", and the number "2" indicating the measurement position, and outputs them to the recording unit 12 and the judgment unit 19.

[0058] The display processing unit 13 takes in the measurement value "8.00" output by the measurement value acquisition unit 18 and the number "2" indicating the measurement position. The display processing unit 13 detects a cell in the "measurement position" item on the measurement value recording screen 50 whose displayed number matches the captured "2", and displays the captured "8.00" in the cell in the "measurement value" item in the same row as the detected cell.

[0059] The recording unit 12 takes in the measurement value "8.00", the table ID "000010", and the number "2" indicating the measurement position output by the measurement value acquisition unit 18. The recording unit 12 selects the measurement value recording table 40-n corresponding to the taken-in table ID "000010" in the storage unit 11. The recording unit 12 detects a cell in the selected measurement value recording table 40-n, from among the cells in the "measurement position" field, whose recorded number matches the taken-in "2", and records the taken-in "8.00" in the cell in the "measurement value" field in the same column as the detected cell (S15). As a result, the display state of the measurement value recording screen 50 becomes the state shown in FIG. 10, and the contents of the measurement value recording table 40-n become the contents shown in FIG. 11.

[0060] The judgment unit 19 takes in the measurement value "8.00", the table ID "000010", and the number "2" indicating the measurement position output by the measurement value acquisition unit 18. The judgment unit 19 selects the measurement value recording table 40-n corresponding to the taken-in table ID "000010" in the storage unit 11. The judgment unit 19 detects a cell in the selected measurement value recording table 40-n, among the cells in the "measurement position" field, whose recorded number matches the taken-in "2", and reads out the reference value from the cell in the "reference value" field in the same column as the detected cell. Here, as shown in FIG. 11, in the measurement value recording table 40-n, "7.00" is recorded in the cell in the "reference value" field in the same column as the cell in which the "measurement position" field is set to "2". Therefore, the judgment unit 19 reads out "7.00" as the reference value. The judgment unit 19 reads out the allowable error rate "10%" from the allowable error table 41 stored in the storage unit 11. The judgment unit 19 calculates "0.70", which is 10% of the reference value "7.00", and calculates the allowable range as "7.00±0.70" based on the reference value "7.00" (S20). That is, the judgment unit 19 calculates the allowable range as "6.30" to "7.70".

[0061] Although the processing of S15 by the recording unit 12 and the display processing unit 13 and the processing of S20 by the determination unit 19 are described as being performed in parallel, the processing of S20 by the determination unit 19 may be performed after the processing of S15, as shown in the flowchart of Fig. 8. In this case, for example, the display processing unit 13 displays "8.00" on the measurement value recording screen 50 in the processing of S15, and then outputs a start instruction signal to the determination unit 19, and the determination unit 19 starts the processing of S20 after receiving the start instruction signal from the display processing unit 13.

[0062] The determination unit 19 determines whether or not the measurement value acquired in the process of S20 is within the allowable range calculated in the process of S20 (S21). Here, since the measurement value acquired by the determination unit 19 in the process of S20 is "8.00" and the calculated allowable range is "6.30" to "7.70", the determination unit 19 determines that the measurement value is not within the allowable range (S21, No). In this case, the determination unit 19 performs a predetermined notification process to notify the subject 100 that the measurement value is not within the allowable range. For example, as the predetermined notification process, the determination unit 19 performs a process of changing the color of the cell in which the measurement value "8.00" is displayed to a color different from that used during normal display.

[0063] Specifically, the determination unit 19 outputs to the display processing unit 13 a display instruction signal including the number "2" indicating the measurement position acquired in the process of S20, and changing the color of the cell to a color different from that in normal display. When the display processing unit 13 acquires the display instruction signal output by the determination unit 19, it detects a cell in the "measurement position" item on the measurement value recording screen 50, in which the number displayed in the cell matches the "2" included in the acquired display instruction signal, and changes the color of the cell in the "measurement value" item in the same row as the detected cell to a predetermined color different from that in normal display (S22). After that, in the process of S11, the voice recognition unit 16 enters a state of waiting for the voice signal generated from the next utterance of the subject 100 to be given.

[0064] After processing of S22, the display state of the measurement value recording screen 50 will be, for example, as shown in FIG. 12, in which the color of the cell displaying the measurement value "8.00" will be displayed in a color different from the colors of the cells of the other "Measurement Value" items.

[0065] The measurer 100 recognizes that the color of the cell in the "measurement value" field in the same row as the cell in the "measurement location" field with "2" on the measurement value recording screen 50 displayed on the display screen 3 of the measurement value recording device 2 is different from the normal display color. The measurer 100 observes the situation around the measurement location "2" and, for example, if there is no contaminated equipment that could be a radiation source and the cause of the increase in the radiation level cannot be found, he or she decides that it would be better to measure the radiation level again and presses the grip button of the radiation measuring device 7. This causes the radiation measuring device 7 to measure the radiation level and display the measurement value obtained by the measurement on the display 8. Here, it is assumed that the measurement value "6.50" is displayed on the display 8.

[0066] Subject 100 refers to "6.50" displayed on display 8 and utters "measurement value 6.50." Microphone 5 collects subject 100's utterance, "measurement value 6.50," converts the collected utterance into a voice signal, and outputs it to voice recognition unit 16 via interface unit 14. Thereafter, the same process as that of S11 to S15 carried out on the voice signal of "measurement value 8.00" is carried out, except that "8.00" is reinterpreted as "6.50." As a result, in the processing of S15, the display processing unit 13 changes the display of the cell of the "Measurement value" item in the same row as the cell of the "Measurement location" item in the measurement value recording screen 50 where the item is "2" from "8.00" to "6.50", and the recording unit 12 rewrites the cell of the "Measurement value" item in the same column as the cell of the "Measurement location" item in the measurement value recording table 40-n where the item is "2" from "8.00" to "6.50".

[0067] The judgment unit 19 performs the same process as in the previous S20 after receiving the measurement value "6.50", the table ID "000010", and the number "2" indicating the measurement position output by the measurement value acquisition unit 18. As a result, the judgment unit 19 calculates the allowable range to be "6.30" to "7.70", similar to the previous process of S20.

[0068] The judgment unit 19 performs the judgment process of S21. Here, since the measured value is "6.50", the judgment unit 19 judges that the measured value is within the allowable range (S21, Yes). In this case, the judgment unit 19 performs a process of changing the color of the cell in which the measured value "6.50" is displayed to the color for normal display. Specifically, the judgment unit 19 outputs a display instruction signal to the display processing unit 13, which includes the number "2" indicating the measurement position acquired in the most recent process of S20 and changes the color of the cell to the color for normal display. When the display processing unit 13 acquires the display instruction signal output by the judgment unit 19, the display processing unit 13 detects a cell in the "measurement position" item on the measured value recording screen 50, in which the number displayed in the cell matches the "2" included in the acquired display instruction signal, and changes the color of the cell in the "measurement value" item in the same row as the detected cell to the color for normal display (S23).

[0069] As a result, the display state of measurement value recording screen 50 becomes the state shown in Fig. 10, where the measurement value displayed in the cell of the "Measurement value" item in the same row as the cell of the "Measurement position" item with "2" has been changed from "8.00" to "6.50". Since the color of the cell in which the measurement value "6.50" is displayed is the color of normal display, subject 100 recognizes that the current measurement value "6.50" is within the allowable range, and can proceed to the next measurement position. After that, in the process of S11, voice recognition unit 16 enters a state of waiting for the voice signal generated from subject 100's next utterance to be given.

[0070] At the remaining measurement positions "1," "3," "4," and "5," the same process as that performed at measurement position "2" is performed, and then subject 100 utters, for example, "end." Microphone 5 collects the utterance of "end" by subject 100, converts the collected utterance into a voice signal, and outputs it to voice recognition unit 16 via interface unit 14. Then, processes S11 and S12 are performed on the voice signal corresponding to the utterance of "end." Here, since the content of the voice signal contains the wording "end," voice recognition unit 16 determines that the content of the voice signal is content related to end (S12, content related to end).

[0071] In this case, the voice recognition unit 16 selects the display processing unit 13 as the output destination. The voice recognition unit 16 outputs a display instruction signal to the display processing unit 13 selected as the output destination to erase the measurement value recording screen 50 and the map display screen including the map information 30-m from the display screen 3. Upon receiving the display instruction signal, the display processing unit 13 erases the measurement value recording screen 50 and the map display screen including the map information 30-m from the display screen 3, and displays the initial setting screen on the display screen 3 (S25). This ends the processing by the measurement value recording device 2 for the measurement location "A-steam generator".

[0072] (Effects of the first embodiment) In the measurement value recording device 2 of the first embodiment, the recording unit 12 records the measurement value acquired by the measurement value acquisition unit 18 in association with information indicating the measurement position acquired by the measurement position acquisition unit 17 in association with the acquisition of the measurement value in the storage unit 11 in association with the measurement value. The determination unit 19 determines whether the measurement value acquired by the measurement value acquisition unit 18 is within an allowable range based on a reference value linked to information indicating the measurement position acquired by the measurement position acquisition unit 17 in association with the acquisition of the measurement value, and performs a predetermined notification process if the determination determines that the measurement value is not within the allowable range based on the reference value corresponding to the measurement value. By the notification by the predetermined notification process by the measurement value recording device 2, the measurer 100 can know before moving to the next measurement position that the measurement value measured at a certain measurement position is not within the allowable range based on the reference value corresponding to the measurement value. Therefore, the measurer 100 can determine whether or not it is necessary to perform remeasurement of the measurement value for which the notification was made before moving to the next measurement position, and can perform the remeasurement if it is determined that it is necessary. Therefore, the measurer 100 does not need to enter the facility again for the remeasurement, and it is possible to reduce the amount of radiation exposure of the measurer 100.

[0073] In the measurement value recording device 2 of the first embodiment, the person 100 can select the position of the cursor 51 by speaking, rather than by operating the operation unit 10 with his / her own hand to select the position of the cursor 51. Furthermore, the person 100 can record the measurement values ​​measured by the radiation measuring device 7 by speaking, rather than by operating the operation unit 10. Therefore, while holding the radiation measuring device 7 in one hand and the measurement value recording device 2 in the other hand, the person 100 can electronically record the measurement values ​​in the measurement value recording device 2 by linking them to the measurement position specified based on the position of the cursor 51 selected by speaking, thereby making it possible to further shorten the time required for recording the measurement values.

[0074] In the measurement value recording device 2 of the first embodiment, the measurement value recording screen 50 shown in Fig. 6 is displayed on the display screen 3, and the measured measurement value is displayed in a cell under the item "measurement value" as shown in Fig. 10. This allows the person 100 to visually confirm the measurement position where measurement has already been performed, thereby preventing the person 100 from erroneously measuring at a measurement position where measurement has already been performed.

[0075] The measurement value recording device 2 of the first embodiment makes it possible to record, by voice, the measurement values ​​obtained by measurement using the radiation measuring device 7. Therefore, there is no need to improve the radiation measuring device 7, for example by transmitting the measurement values ​​to the measurement value recording device 2, and a conventional, proven device can be used as is as the radiation measuring device 7, so that from the viewpoint of quality control, the quality of the measurement values ​​obtained by measuring the radiation level remains unchanged, and it is possible to ensure the same measurement accuracy as before.

[0076] When recording measurement values ​​on a recording sheet using a writing implement, after recording is completed, the measurement values ​​recorded on the recording sheet are manually transcribed by operating a computer or the like to record them electronically, and transcription errors that occur during this transcription process result in a deterioration in the quality of the measurement values. In contrast, the measurement value recording device 2 electronically records the electronic measurement values ​​obtained from the speech of the person being measured 100 in association with the electronic measurement position indicated by the position of the cursor 51, thereby eliminating the task of transcription itself and making it possible to eliminate the deterioration in the quality of the measurement values ​​caused by the above-mentioned transcription errors.

[0077] <Second embodiment> (Configuration of measurement value recording device according to the second embodiment) The measurement value recording device 2a according to the second embodiment is a device in which the storage unit 11, recording unit 12, voice recognition unit 16 and judgment unit 19 in the measurement value recording device 2 of the first embodiment are replaced with a storage unit 11a, a recording unit 12a, a voice recognition unit 16a and a judgment unit 19a, respectively, and further includes an imaging unit 20. For ease of explanation, hereinafter, a system in the radiation measurement recording system 1 that includes the measurement value recording device 2a instead of the measurement value recording device 2 will be referred to as the radiation measurement recording system 1a.

[0078] Like the memory unit 11 in the first embodiment, the memory unit 11a stores map information 30-1 to 30-M and an allowable error table 41, and includes measurement value recording tables 40a-1 to 40a-N instead of the measurement value recording tables 40-1 to 40-N. Here, N is an integer equal to or greater than 1 after at least one regular inspection has been performed, but in the initial state where no regular inspection has been performed, the measurement value recording tables 40a-1 to 40a-N may not exist.

[0079] FIG. 14 is a diagram showing a measurement value recording table 40a-n, which is an example of the measurement value recording tables 40a-1 to 40a-N (where n is any integer between 1 and N). As shown in FIG. 14, the measurement value recording table 40a-n has a table configuration in which the items "reference image" and "image at measurement" are added to the table configuration of the measurement value recording table 40-n of the first embodiment. Each of the items "reference image" and "image at measurement" is divided into cells the number of which corresponds to the number of measurement positions determined in advance at the measurement position shown in the "measurement position" item, similar to the items "measurement position", "reference value", and "measurement value". Each of the cells in the "reference image" item records image information captured when the reference value recorded in the corresponding cell in the "reference value" item is obtained by measurement. Each of the cells in the "image at measurement" item records image information captured when the measurement value recorded in the corresponding cell in the "measurement value" item is obtained by measurement.

[0080] Recording unit 12a has the same configuration as recording unit 12 in the first embodiment, and further records image information in each of the cells under the items "reference image" and "image during measurement" in measurement value recording tables 40a-1 to 40a-N.

[0081] The voice recognition unit 16a has the same configuration as the voice recognition unit 16 of the first embodiment, and further determines whether the content of the voice signal is related to photography from the voice recognition result. When the voice recognition unit 16a determines that the content of the voice signal is related to photography, it selects the imaging unit 20 and the measurement position acquisition unit 17 as output destinations. The voice recognition unit 16a outputs a photography instruction signal to the imaging unit 20, and outputs a measurement position acquisition instruction signal specifying the imaging unit 20 as the output destination to the measurement position acquisition unit 17.

[0082] The imaging unit 20 is, for example, a camera, and performs imaging processing to generate image information when it receives a shooting instruction signal from the voice recognition unit 16a. The determination unit 19a has the same configuration as the determination unit 19 in the first embodiment, and further changes a reference value corresponding to the image information based on a difference between the image information generated by the imaging unit 20 and reference image information corresponding to the image information.

[0083] (Example of operation of the measurement value recording device according to the second embodiment) The processing by the measurement value recording device 2 according to the second embodiment is processing in which the flowchart shown in FIG. 15 is added to the flowcharts shown in FIG. 7 and FIG. 8. FIG. 15 shows the processing after the branch added in the judgment processing of S12 in FIG. 8. After the processing of S36 and S37 shown in FIG. 15, the processing of S11 is performed again. Here, it is assumed that a plurality of map information 30-1 to 30-M is stored in the memory unit 11a. It is also assumed that a regular inspection has been performed in the past, and a plurality of measurement value recording tables 40a-1 to 40a-(n-1) are stored in the memory unit 11a.

[0084] The processing of S1 to S4 and S6, S7, and S10 in the second embodiment is the same as the processing of S1 to S4 and S6, S7, and S10 in the first embodiment, except that the measurement value recording device 2 is replaced with the measurement value recording device 2a, the memory unit 11 is replaced with the memory unit 11a, the recording unit 12 is replaced with the recording unit 12a, the measurement value recording tables 40-1 to 40-N are replaced with the measurement value recording tables 40a-1 to 40a-N, and the voice recognition unit 16 is replaced with the voice recognition unit 16a. That is, in the processing of S4, the recording unit 12a selects the measurement value recording table 40a-1 as one of the measurement value recording tables 40a-1 to 40a-N in which the item "measurement location" is "A-steam generator" and the date in the item "measurement date" is the date closest to "X month Y day, 2023". Measurement value recording table 40a-1 is a table in which the items "reference image" and "image at measurement" have been added to measurement value recording table 40-1 shown in FIG. 9, and image information has been recorded in each of the cells of the items "reference image" and "image at measurement".

[0085] The process of S5 in the second embodiment is as follows. As in the first embodiment, the recording unit 12a records each of the measurement values ​​for each measurement position recorded in the "measurement value" field of the measurement value recording table 40a-1 selected in the process of S4 in a cell of the "reference value" field of the newly generated measurement value recording table 40a-n, which corresponds to the number of the measurement position corresponding to each of the measurement values. The recording unit 12a further records each of the image information for each measurement position recorded in the "image at measurement" field of the selected measurement value recording table 40a-1 in a cell of the "reference image" field of the newly generated measurement value recording table 40a-n, which corresponds to the number of the measurement position corresponding to each of the measurement values. As a result, the contents of the measurement value recording table 40a-n become the contents shown in FIG. 14.

[0086] Thereafter, similar to the example of operations from S11 to S22 of the measurement value recording device 2 described in the first embodiment, the first radiation level measurement is performed at the measurement position "2" of the measurement location of the "A-steam generator", and the measurement value obtained by the measurement is "8.00". In this case, the process of S22 causes the color of the cell displaying the measurement value "8.00" on the measurement value recording screen 50 displayed on the display screen 3 of the measurement value recording device 2a to be displayed in a color different from the color displayed during normal display, as shown in FIG. 12. Also, the process of S15 causes "8.00" to be recorded in the cell of the "measurement value" item in the same column as the cell with "2" in the "measurement position" item in the measurement value recording table 40a-n.

[0087] In order to photograph the conditions around measurement position "2", subject 100 points the lens of imaging unit 20 of measurement value recording device 2a in the direction of photography and utters "photography". Microphone 5 collects the utterance of "photography" by subject 100, converts the collected utterance into a voice signal, and outputs it to voice recognition unit 16a via interface unit 14. Then, processes S11 and S12 are performed on the voice signal corresponding to the utterance "photography". In this case, the content of the voice signal is "photography", so voice recognition unit 16a determines that the content of the voice signal is content related to photography (S12, content related to photography).

[0088] As a result, the process shown in Fig. 15 is performed. The voice recognition unit 16a selects the imaging unit 20 and the measurement position acquisition unit 17 as output destinations. The voice recognition unit 16a outputs a shooting instruction signal to the imaging unit 20. Upon receiving the shooting instruction signal from the voice recognition unit 16a, the imaging unit 20 performs imaging processing to generate image information (S30-1).

[0089] The voice recognition unit 16a outputs a measurement position acquisition instruction signal specifying the imaging unit 20 as the output destination to the measurement position acquisition unit 17. When the measurement position acquisition unit 17 receives the measurement position acquisition instruction signal, the same process as S14-2 is performed by the measurement position acquisition unit 17 and the display processing unit 13. However, in this case, since the measurement position acquisition unit 17 has received a measurement position acquisition instruction signal specifying the imaging unit 20 as the output destination, it outputs information indicating the acquired measurement position, i.e., a measurement position notification signal including the number "2" indicating the measurement position and the table ID "000010" to the imaging unit 20 (S30-2).

[0090] The imaging unit 20 captures the measurement position notification signal output by the measurement position acquisition unit 17, and acquires the number "2" indicating the measurement position and the table ID [000010] from the captured measurement position notification signal. The imaging unit 20 associates the image information generated in the process of S30-1 with the table ID "000010" and the number "2" indicating the measurement position, and outputs them to the recording unit 12a and the determination unit 19a.

[0091] When the recording unit 12a receives the image information output by the imaging unit 20, the table ID "000010", and the number "2" indicating the measurement position, it selects the measurement value recording table 40a-n corresponding to the table ID "000010" in the storage unit 11a. The recording unit 12a detects a cell in the selected measurement value recording table 40a-n, from among the cells in the "measurement position" field, whose recorded number matches the retrieved "2", and records the retrieved image information in a cell in the "measurement image" field in the same column as the detected cell (S31).

[0092] The determination unit 19a takes in the image information output by the imaging unit 20, the table ID "000010", and the number "2" indicating the measurement position. The determination unit 19a selects the measurement value recording table 40a-n corresponding to the taken-in table ID "000010" in the storage unit 11a. The determination unit 19a detects a cell in the selected measurement value recording table 40a-n from among the cells in the "measurement position" field whose recorded number matches the taken-in "2", reads out the reference value "7.00" from the cell in the "reference value" field in the same column as the detected cell, and further reads out reference image information from the cell in the "reference image" field (S32).

[0093] The determination unit 19a detects the difference between the captured image information, i.e., the image information showing the state around the measurement position "2", and the read reference image information. The determination unit 19a recognizes, by image recognition technology or the like, that an object that exists in the reference image information but does not exist in the image information is, for example, a lead shielding plate. In this case, since the lead shielding plate that existed in the previous measurement does not exist in the current measurement, it is expected that the radiation level at the measurement position "2" will be higher. In other words, it is expected that the measurement value obtained by the current measurement will be higher than the reference value, which is the measurement value obtained by the previous measurement.

[0094] Therefore, the judgment unit 19a performs a predetermined calculation to multiply the reference value "7.00" read in the process of S32 by an increase rate of the measurement value calculated in advance assuming a change from a state in which the lead shielding plate is present to a state in which the lead shielding plate is no longer present, thereby changing the reference value (S33). Here, if the increase rate is, for example, 10%, the judgment unit 19a calculates 7.70=7.00×1.1 as the changed reference value.

[0095] The judgment unit 19a reads out the allowable error rate "10%" from the allowable error table 41 stored in the memory unit 11a. The judgment unit 19a calculates "0.77", which is 10% of the changed reference value "7.70", and calculates the allowable range to be "7.70±0.77", that is, "8.47" to "6.93", based on the changed reference value "7.70". The judgment unit 19a reads out the measurement value "8.00" from the cell in the "measurement value" field in the same column as the cell in the "measurement position" field of the measurement value record table 40a-n selected in the process of S32 (S34).

[0096] The processes of S35, S36, and S37 are the same as the processes of S21, S22, and S23 in Fig. 8, except that the judgment unit 19 is replaced with the judgment unit 19a. Here, the measurement value is "8.00", and the allowable range is "8.47" to "6.93". Therefore, the judgment unit 19a judges that the measurement value is within the allowable range (S35, Yes). In this case, the judgment unit 19a changes the color of the cell in which the measurement value "8.00" is displayed to the color for normal display, that is, the same process as the process of S23, except that the judgment unit 19 is replaced with the judgment unit 19a (S37).

[0097] As a result, the display state of measurement value recording screen 50 changes from that shown in Fig. 12 to that shown in Fig. 10. Since the color of the cell in which measurement value "8.00" is displayed is the normal display color, subject 100 recognizes that the current measurement value "8.00" is within the allowable range considering the surrounding environment of measurement position "2" at that time, and can proceed to the next measurement position. After that, in the process of S11, voice recognition unit 16a enters a state of waiting for the voice signal generated from subject 100's next utterance to be given.

[0098] In the process of S33 described above, as an example, since the lead shielding plate exists in the reference image information and does not exist in the image information, the determination unit 19a performs a process of increasing the reference value, but conversely, when the lead shielding plate does not exist in the reference image information and exists in the image information, the determination unit 19a performs a process of decreasing the reference value. In addition, the object recognized by the determination unit 19a is not limited to an object such as a lead shielding plate that reduces the radiation level, but may be an object such as a contaminated equipment that becomes a radiation source that increases the radiation level.

[0099] In addition, in the processing of S33, if there is a difference between the image information and the reference image information, the judgment unit 19a changes the reference value used for judgment. However, instead of changing the reference value, when calculating the allowable range, the allowable error rate read from the allowable error table 41 may be changed according to the difference between the image information and the reference image information, and then the allowable range may be calculated.

[0100] In the second embodiment described above, the subject 100 performs a measurement using the radiation measurement device 7, and after the processes of S14-1 to S23 in Fig. 8 are performed, the subject 100 performs an image capture using the imaging unit 20. In contrast, the subject 100 may perform an image capture using the imaging unit 20 before performing a measurement using the radiation measurement device 7, and then perform a measurement using the radiation measurement device 7. However, in this case, when the subject 100 performs an image capture using the imaging unit 20, the determination unit 19a does not perform a determination, and when the determination unit 19a determines the measurement value obtained by the measurement using the radiation measurement device 7, a process of changing the reference value based on the difference between the image information and the reference image information is performed.

[0101] (Effects of the second embodiment) The measurement value recording device 2a of the second embodiment includes an imaging unit 20, and the judgment unit 19a makes a judgment by considering the difference between the image information obtained by the imaging unit 20 capturing an image in association with the acquisition of a measurement value by the measurement value acquisition unit 18 and the reference image information linked to the information indicating the measurement position acquired by the measurement position acquisition unit 17 in association with the acquisition of the measurement value. Specifically, the measurement value recording device 2a reflects the difference between the image information and the reference image information in the allowable range and judges whether or not the measurement value is within the allowable range. Therefore, for example, when a lead shielding plate that existed at the time of the previous measurement is not present at the time of the current measurement, the measurement value recording device 2a can make a judgment taking into consideration the level of radiation that increases due to the absence of the lead shielding plate. Since such a judgment can be made, even if the measurement value recording device 2 of the first embodiment judges that the measurement value is not within the allowable range, the measurement value recording device 2a may obtain a judgment result opposite to the judgment, making it possible to make a more accurate judgment. By improving the accuracy of the judgment, the subject 100 can be more accurately notified as to whether or not remeasurement is necessary, which makes it possible to reduce the time required for remeasurement and further reduce the radiation exposure of the subject 100 compared to the first embodiment.

[0102] <Other configuration examples of each embodiment> Although an embodiment of the present invention has been described in detail above with reference to the drawings, the specific configuration is not limited to this embodiment, and designs that do not deviate from the gist of the present invention are also included.

[0103] (Another configuration example of the display processing unit) As explained in the first embodiment, if the allowable range is "6.30" to "7.70" and "8.00" is obtained as a measurement value that exceeds the allowable range, the color of the cell in which the measurement value "8.00" is displayed on the measurement value recording screen 50 will be displayed in a color different from the color used for normal display. In this case, contrary to the first embodiment described above, when the measurer 100 observes the situation around the measurement position "2" and finds, for example, the presence of contaminated equipment that may be a radiation source and a cause of an increase in the radiation level, he or she may decide to leave the measurement value "8.00" as a correct record. On the other hand, suppose that "6.00" is obtained as a measurement value that does not reach the allowable range, and the color of the cell in which the measurement value "6.00" is displayed on the measurement value recording screen 50 will be displayed in a color different from the color used for normal display. In this case, if the person making the measurement 100 observes the situation around measurement position "2" and finds, for example, the presence of a lead shield or the like that would reduce the radiation level, he or she may decide to record the measurement value of "6.00" as the correct value.

[0104] In these cases, the color of the cell displaying "8.00" and the cell displaying "6.00" will be maintained in a color different from the color in normal display. Therefore, in order to return the color of these cells to the color in normal display, for example, when cursor 51 is present at the position of these cells, subject 100 is made to say, for example, "original color." When voice recognition unit 16 receives a voice signal of the utterance of "original color," it performs processes S11 and S12, and when it is determined in the process of S12 that the content of the voice signal is to change the color of the cell to the normal color, it outputs a display instruction signal to display processing unit 13 to change the color of the cell at cursor 51 to the color in normal display. When display processing unit 13 receives the display instruction signal, it changes the color of the cell at cursor 51 to the color in normal display. As a result, the color of the cell where cursor 51 is present is displayed in the color in normal display. This configuration can be similarly applied to the measurement value recording device 2a of the second embodiment, and by applying this configuration, not only the color of cells that are displayed in a color different from the color during normal display by the processing of S22 in the second embodiment, but also the color of cells that are displayed in a color different from the color during normal display by the processing of S36 can be restored to the color during normal display.

[0105] (Another example of a specific notification process) In the first and second embodiments, the judgment unit 19, 19a performs a process of changing the color of the cell at the position of the cursor 51 to a color different from that in normal display as the predetermined notification process. In contrast, the predetermined notification process may be any process that notifies the subject 100 to perform a remeasurement. For example, when the judgment unit 19, 19a determines "No" in the process of S21 or S35, the judgment unit 19, 19a may output a display instruction signal to the display processing unit 13 to display a screen including a message prompting the subject 100 to perform a remeasurement on the display screen 3. The predetermined notification process may also be a notification by voice as follows. For example, a message prompting a remeasurement, such as a voice signal (hereinafter referred to as a remeasurement request voice signal) reading out a message such as "The measured value is outside the allowable range. Please measure again" is stored in a storage area inside the voice output unit 15. When determination units 19, 19a make a determination of "No" in the processing of S21 or S35, they output an audio output instruction signal for outputting a remeasurement request audio signal to audio output unit 15. When audio output unit 15 receives the audio output instruction signal, it selects a remeasurement request audio signal from an internal storage area and outputs the selected audio signal to earphone 4 via interface unit 14. As a result, an audio message urging subject 100 to perform the above-mentioned remeasurement is output from earphone 4, so that subject 100 can be urged to perform the remeasurement.

[0106] (Another configuration example regarding reference values ​​(part 1)) In the second embodiment, the reference value is changed based on the difference between the image information and the reference image information. In contrast to this, in the first embodiment, the judgment unit 19 may change the reference value as follows. In the measurement value recording tables 40-1 to 40-N shown in FIG. 4, an item called "operation period" is provided. In the process of S2 in FIG. 7, in addition to the measurement date and measurement location, the measurer 100 is made to write the operation period in an input field provided for writing the operation period. Here, the operation period is the number of days from the restart of the nuclear power plant after the end of the previous regular inspection to the day when the measurement is performed. In the process of S3, the recording unit 12 records the number of days indicating the operation period written in the input field by the measurer 100 in the "operation period" item of the newly generated measurement value recording table 40-n.

[0107] As in the operation example shown in the first embodiment, in the process of S20, the judgment unit 19 takes in the measurement value "8.00", the table ID "000010", and the number "2" indicating the measurement position output by the measurement value acquisition unit 18. The judgment unit 19 selects the measurement value recording table 40-n corresponding to the taken-in table ID "000010" in the storage unit 11. The judgment unit 19 reads out the number of days indicating the operation period recorded in the "operation period" field of the selected measurement value recording table 40-n. The judgment unit 19 reads out the reference value "7.0" from the cell in the "reference value" field in the same column as the cell in the "measurement position" field of the selected measurement value recording table 40-n with "2" in the field. The determination unit 19 performs a process similar to that of S4 to select, in the storage unit 11, the measurement value record table 40-1 shown in FIG. 9 that was generated by the recording unit 12 during the previous regular inspection and that has an item "operating period" for measurement at the measurement location "A-steam generator". The determination unit 19 reads out the number of days indicating the operating period recorded in the item "operating period" of the selected measurement value record table 40-1. Hereinafter, the number of days indicating the operating period read by the determination unit 19 from the item "operating period" of the measurement value record table 40-n is referred to as the current operating period, and the number of days indicating the operating period read from the item "operating period" of the measurement value record table 40-1 is referred to as the previous operating period.

[0108] It is generally known that in a nuclear power plant, as the operation period becomes longer, the radiation level increases due to the accumulation of radioactive materials in pipes and the like. Therefore, the judgment unit 19 performs a predetermined calculation to calculate a measurement value estimated in the current operation period based on the previous operation period, a reference value "7.0" which is a measurement value corresponding to the previous operation period, and the current operation period. The calculation formula used in the predetermined calculation is a calculation formula derived from the operation period of the nuclear power plant, water chemistry, and the like. The judgment unit 19 changes the reference value from "7.0" to the measurement value calculated by the predetermined calculation. The judgment unit 19 calculates the allowable range based on the changed reference value and the allowable error rate in the allowable error table 41. Then, the processing from S21 onwards is performed. This makes it possible to perform a more accurate judgment taking into account the level of radiation that increases according to the length of the current operation period.

[0109] (Another configuration example regarding reference values ​​(part 2)) In the second embodiment, for example, it is detected that a lead shielding plate that existed in the previous measurement is not present in the current measurement from the difference between the image information and the reference image information. In contrast, when the change in the environment for each measurement position, such as the lead shielding plate that existed in the previous measurement is not present in the current measurement, can be grasped before the measurement is performed, the following processing may be performed. For example, in the measurement value recording tables 40-1 to 40-N of the measurement value recording device 2 of the first embodiment, an item "increase rate" is added between the items "reference value" and "measurement value", and the recording unit 12 generates the measurement value recording tables 40-1 to 40-N in the processing of S3 in FIG. 7 so that the number of cells in the "increase rate" item is the same as the number of cells in the "measurement position" item.

[0110] Before starting the measurement, the measurer 100 performs an operation to write the increase rate that takes into account the change in the environment at each corresponding measurement position into each cell in the "increase rate" item via the operation unit 10 and the recording unit 12. Note that the sign of the increase rate is positive when the increase rate is increased, and the sign of the increase rate is negative when the decrease rate is decreased. In the process of S20 in FIG. 8, when the judgment unit 19 reads out the corresponding reference value from the measurement value recording tables 40-1 to 40-N, it also reads out the increase rate corresponding to the reference value, performs a predetermined calculation to multiply the read out reference value by the increase rate, changes the reference value, and calculates the allowable range based on the changed reference value. In this way, the judgment unit 19 can make a judgment in the process of S21 that takes into account the change in the environment that is known in advance. Note that the increase rate recorded in the newly provided "increase rate" item is not limited to the increase rate according to the change in the environment at each measurement position, and may be the increase rate of the measurement value that can be calculated by water chemistry from the length of the current operation period as described above, and this increase rate may be presented by the operator who operates the nuclear power plant.

[0111] It should be noted that the means for changing the reference value by a predetermined calculation in the configuration of the above-described first embodiment and the means for changing the reference value by a predetermined calculation shown in the second embodiment may be used in combination.

[0112] In the first and second embodiments, the reference value recorded in the cell of the "reference value" item in the measurement value recording table 40-n, 40a-n is the measurement value measured at the same measurement location on the measurement date closest to the current measurement date. In contrast, the value recorded in each cell of the "reference value" item in the measurement value recording table 40-n, 40a-n may be, for example, a value that is predetermined for the measurement position of each measurement location, or may be, for example, a planned value presented by the operator who operates the nuclear power plant.

[0113] (Another example of a configuration to move the cursor) In the first and second embodiments, for example, when moving the position of cursor 51 on measurement value recording screen 50 shown in FIG. 6, subject 100 may speak "up" or "down". Alternatively, subject 100 may speak the number shown in the cell of the "measurement position" item corresponding to the position to which cursor 51 is to be moved on measurement value recording screen 50. In this case, for example, the following process is performed by voice recognition unit 16 and display processing unit 13. For example, assume that subject 100 utters "5". In the process of S12, if the content of the voice signal indicates only a numerical value, voice recognition unit 16 determines that the content is related to the measurement position, and outputs a movement instruction signal including the voice recognition result "5" to display processing unit 13. When display processing unit 13 receives the movement instruction signal including "5", it displays cursor 51 in the cell of the "measurement value" item in the same row as the cell of the "measurement position" item on measurement value recording screen 50 where the value is "5".

[0114] (Another example of a configuration for acquiring measured values ​​(part 1)) In the first and second embodiments, the person 100 refers to the measurement value displayed on the display 8 of the radiation measurement device 7 and speaks the referenced measurement value to record the measurement value in the measurement value recording device 2, 2a. Alternatively, the measurement value may be recorded in the measurement value recording device 2, 2a as follows. The radiation measurement device 7 has an interface for connecting to an external device, and the interface of the radiation measurement device 7 and the interface unit 14 of the measurement value recording device 2 are connected by a connection cable. When the button provided on the grip is pressed by the person 100, the radiation measurement device 7 measures the level of radiation and transmits the measurement value obtained by the measurement to the measurement value recording device 2, 2a via the connection cable. When the interface unit 14 of the measurement value recording device 2, 2a receives the measurement value transmitted by the radiation measurement device 7, it outputs a measurement value notification signal including the received measurement value to the measurement value acquisition unit 18 and outputs a measurement position acquisition instruction signal specifying the output destination to the measurement value acquisition unit 18 to the measurement position acquisition unit 17. As a result, the processes of S14-1 and S14-2 are carried out without going through the processes of S11 and S12 by the voice recognition unit 16.

[0115] (Another example of a configuration for acquiring measured values ​​(part 2)) The measurement value recording device 2 of the first embodiment is provided with the imaging unit 20 of the measurement value recording device 2a of the second embodiment, and is provided with the imaging unit 20 to which image recognition processing has been added. However, this imaging unit 20 does not have to be connected to the recording unit 12a, the measurement position acquisition unit 17, and the determination unit 19a, as in the imaging unit 20 of the second embodiment. Then, the person measuring 100 uses the imaging unit 20 to capture the measurement value displayed on the display 8 of the radiation measurement device 7. Specifically, when the person measuring 100 points the lens of the imaging unit 20 toward the display 8 of the radiation measurement device 7 and utters "capture the measurement value", the voice recognition unit 16 determines in the process of S12 that the content of the voice signal is content related to the measurement value, and outputs a capture instruction signal to the imaging unit 20. The imaging unit 20 that has received the capture instruction signal performs imaging processing to generate image information, and performs image recognition processing on the generated image information to acquire the measurement value. The imaging unit 20 outputs the acquired measurement value to the voice recognition unit 16. When the voice recognition unit 16 captures the measurement values ​​output by the imaging unit 20, it outputs a measurement value notification signal including the captured measurement value to the measurement value acquisition unit 18, and outputs a measurement position acquisition instruction signal specifying the output destination as the measurement value acquisition unit 18 to the measurement position acquisition unit 17. After that, the processes of S14-1 and S14-2 are performed.

[0116] In the case of the method of acquiring the measurement values ​​displayed on the display 8 of the radiation measuring device 7 by photographing, as in the case of the first embodiment, a previously proven device can be used as the radiation measuring device 7 as is, so that from the viewpoint of quality control, the quality of the measurement values ​​acquired by measuring the radiation level does not change, and it is possible to ensure the same measurement accuracy as before. Note that the method of acquiring the measurement values ​​displayed on the display 8 of the radiation measuring device 7 by photographing may be applied to the second embodiment.

[0117] (Another configuration example of the determination unit (part 1)) In the first and second embodiments, the judgment unit 19, 19a uses the measurement value and the reference value corresponding to the measurement value to judge whether the measurement value is within the allowable range calculated from the reference value and the allowable error rate. In contrast, the judgment unit 19, 19a may make a judgment by referring to the judgment results of the measurement values ​​already recorded in one measurement value recording table 40-n, 40a-n. For example, it is assumed that the judgments for the measurement values ​​of the measurement positions "1", "3", "4", and "5" have been completed. In this state, a measurement is performed for the measurement position "2", and the judgment unit 19, 19a performs the judgment process of S21 or S35 for the measurement value of the measurement position "2". In this judgment process, it is assumed that the judgment unit 19, 19a judges that the measurement value of the measurement position "2" is within the allowable range. In this case, the judgment unit 19, 19a refers to all the judgment results of the other measurement positions "1", "3", "4", and "5" for which judgments have been completed. Assume that the measurement values ​​at all of the measurement positions "1", "3", "4", and "5" are within the allowable range and are smaller than the corresponding reference value. In this case, the judgment units 19 and 19a may make a "No" judgment if the measurement value at the measurement position "2" is larger than the corresponding reference value.

[0118] Furthermore, instead of referring to the judgment results of all other measurement positions for which judgment has been completed in one measurement value record table 40-n, 40a-n, for example, when the measurement position to be judged is measurement position "2", the judgment units 19, 19a may refer only to the judgment results of other measurement positions that are predetermined as measurement positions near measurement position "2". By using the judgment results in the vicinity of the measurement position where the measurement value to be judged is measured, the tendency of the radiation level around the measurement position where the measurement value to be judged is measured is more strongly represented, making it possible to perform a more accurate judgment on the measurement value to be judged.

[0119] (Another configuration example of the determination unit (part 2)) In the first and second embodiments, each time measurement value acquisition unit 18 acquires one measurement value, determination unit 19, 19a performs the processes of S20 and S21. In this case, subject 100 can know whether remeasurement is necessary at the measurement position where the measurement was performed, so that the distance traveled by subject 100 can be reduced. In contrast, determination unit 19, 19a may perform the processes of S20 and S21 for each of the measured values ​​recorded when a predetermined number of measured values ​​are recorded in measurement value recording tables 40-1 to 40-N, 40a-1 to 40a-N. Also, one measurement location may be divided into a predetermined number of areas, and when measurement values ​​corresponding to all measurement positions included in one area are recorded, determination unit 19, 19a may perform the processes of S20 and S21 for each of the recorded measured values. In this way, the measurer 100 can proceed with the measurement work without waiting for the judgment process by the judgment units 19, 19a, and can know all the locations where the measured values ​​are not within the allowable range when the measurements at multiple measurement locations are completed. Therefore, for example, when the measurement is completed at a measurement location where the radiation level is high, the judgment result can be known at another measurement location away from the measurement location where the radiation level is low, and the time spent at the measurement location where the radiation level is high can be shortened.

[0120] (Other configuration examples) In the first and second embodiments, since the cells in the "measurement value" field on the measurement value recording screen 50 are arranged vertically, the cursor 51 can move in two directions, "up" and "down." In contrast, for example, in the case where the measurement location "A-steam generator" has a "HOT" area and a "COLD" area, and there are five measurement positions in the "HOT" area and five measurement positions in the "COLD" area, the display processing unit 13 of the measurement value recording device 2, 2a may display the measurement value recording screen 50a shown in FIG. 16. In this case, the measurement positions are not identified only by the numbers "1" to "5," but by information that combines the area name and the number, such as the "1" for "HOT."

[0121] Furthermore, in the case of measurement value recording screen 50a, the movement direction of cursor 51 needs to be "left" and "right" in addition to "up" and "down". Therefore, in the processes of S11, S12, and S13, voice recognition units 16, 16a need to recognize "left" and "right" spoken by subject 100, and a process needs to be added to move cursor 51 to the left when subject 100 speaks "left", and to move cursor 51 to the right when subject 100 speaks "right".

[0122] In the first embodiment, the voice recognition unit 16 outputs a measurement position acquisition instruction signal that specifies the measurement position acquisition unit 18 as the output destination to the measurement position acquisition unit 17, but in the first embodiment, the measurement position acquisition unit 17 does not output the measurement position notification signal that it outputs upon receiving the measurement position acquisition instruction signal to anything other than the measurement position acquisition unit 18. Therefore, the voice recognition unit 16 may be configured to simply output the measurement position acquisition instruction signal to the measurement position acquisition unit 17 without specifying an output destination, and the measurement position acquisition unit 17, upon receiving the measurement position acquisition instruction signal, outputs the measurement position notification signal to the predetermined measurement value acquisition unit 18.

[0123] In the first and second embodiments, in the process of S7, the display processing unit 13 displays a voice operation start button on the display screen 3, but the voice operation start button may not be displayed, and the display processing unit 13 may output a start instruction signal to the voice recognition unit 16, 16a, so that the process of S11 is performed without going through the process of S10. In this case, if no other voice notification is to be given to the subject 100, the measurement value recording device 2, 2a may not include the voice output unit 15, and the radiation measurement recording system 1, 1a may not include the earphone 4.

[0124] In the first and second embodiments, the process in which display processing unit 13 displays a map display screen including any of map information 30-1 to 30-M on display screen 3 is performed in the process of S6. In contrast, the process of displaying the map display screen may be performed by display processing unit 13 at any timing after the measurement location is selected in the process of S2, or may be performed by display processing unit 13 in response to a map display operation separately performed by subject 100 on operation unit 10.

[0125] In the first and second embodiments, the measurement value recording devices 2, 2a are described as being, for example, tablet PCs, but may be computers with monitors of a size that can be worn on the wrist.

[0126] In the first and second embodiments, the radiation level is measured at each regular inspection. However, the radiation level may be measured during periods other than normal operation periods, such as after a non-regular inspection shutdown or an emergency shutdown during normal operation, or before construction work is carried out at the nuclear power plant.

[0127] In the first and second embodiments, the determination unit 19, 19a determines whether the measured value is within the allowable range when the measured value is equal to or less than the upper limit of the allowable range and equal to or more than the lower limit of the allowable range. In contrast, when a calculation method other than the above-mentioned calculation method is used as a calculation method for the allowable range, the measured value may be determined to be within the allowable range when the measured value is less than the upper limit of the allowable range and exceeds the lower limit of the allowable range, or when the measured value is less than the upper limit of the allowable range and exceeds the lower limit of the allowable range, or when the measured value is less than the upper limit of the allowable range and exceeds the lower limit of the allowable range.

[0128] <Computer configuration> FIG. 17 is a schematic block diagram showing the configuration of a computer according to at least one embodiment. The computer 90 includes a processor 91, a main memory 92, a storage 93, and an interface 94. The measurement value recording device 2, 2a described above is implemented in the computer 90. The operations of the above-mentioned processing units, i.e., the operation unit 10, the recording unit 12, 12a, the display processing unit 13, the interface unit 14, the voice output unit 15, the voice recognition unit 16, 16a, the measurement position acquisition unit 17, the measurement value acquisition unit 18, and the judgment unit 19, 19a, are stored in the storage 93 in the form of a program. The processor 91 reads out the program from the storage 93 and expands it in the main memory 92, and executes the above-mentioned processing according to the program. The processor 91 also secures a storage area in the main memory 92 or the storage 93 corresponding to the storage area inside the above-mentioned storage units 11, 11a and the voice output unit 15 according to the program.

[0129] The program may be for realizing a part of the functions to be performed by the computer 90. For example, the program may be for realizing the functions by combining with other programs already stored in the storage or by combining with other programs implemented in other devices. In another embodiment, the computer may include a custom LSI (Large Scale Integrated Circuit) such as a PLD (Programmable Logic Device) in addition to or instead of the above configuration. Examples of PLDs include PAL (Programmable Array Logic), GAL (Generic Array Logic), CPLD (Complex Programmable Logic Device), and FPGA (Field Programmable Gate Array). In this case, some or all of the functions to be realized by the processor may be realized by the integrated circuit.

[0130] The interface 94 is hardware included in the interface unit 14 described above. Examples of the storage 93 include a hard disk drive (HDD), a solid state drive (SSD), a magnetic disk, a magneto-optical disk, a compact disc read only memory (CD-ROM), a digital versatile disc read only memory (DVD-ROM), and a semiconductor memory. The storage 93 may be an internal medium directly connected to the bus of the computer 90, or an external medium connected to the computer 90 via the interface 94 or a communication line. In addition, when the program is distributed to the computer 90 via a communication line, the computer 90 that has received the program may expand the program in the main memory 92 and execute the above-mentioned process. In at least one embodiment, the storage 93 is a non-transitory tangible storage medium.

[0131] <Additional Notes> The measurement value recording devices 2 and 2a described in the respective embodiments can be understood, for example, as follows.

[0132] (1) A measurement value recording device 2, 2a according to a first embodiment is a device carried by an operator 100 who measures radiation levels in a nuclear power plant, and includes a measurement value acquisition unit 18 that acquires measurement values ​​indicating the radiation levels, a measurement position acquisition unit 17 that acquires information indicating the measurement position in the nuclear power plant, a recording unit 12, 12a that records the measurement values ​​acquired by the measurement value acquisition unit in a storage unit 11, 11a by linking the measurement values ​​acquired by the measurement value acquisition unit with information indicating the measurement position acquired by the measurement position acquisition unit in association with the acquisition of the measurement values, and a determination unit 19, 19a that determines whether the measurement values ​​acquired by the measurement value acquisition unit are within an allowable range based on a reference value linked to the information indicating the measurement position acquired by the measurement position acquisition unit in association with the acquisition of the measurement values, and performs a predetermined notification process when it is determined that the measurement values ​​are not within the allowable range. According to this embodiment and each of the following embodiments, the measurement values ​​can be electronically recorded by linking them to the measurement positions, so that the time required for recording the measurement values ​​can be shortened, and the radiation exposure of the operator who measures radiation can be reduced.

[0133] (2) The measurement value recording device 2, 2a according to a second aspect is the measurement value recording device 2, 2a of (1), in which the reference value is a measurement value acquired by the measurement value acquisition unit during the previous periodic inspection of the nuclear power plant, or a value calculated by performing a predetermined calculation on the measurement value acquired by the measurement value acquisition unit during the previous periodic inspection of the nuclear power plant. According to this aspect, the measurement value of the previous periodic inspection or a value calculated by a predetermined calculation from the measurement value of the previous periodic inspection can be used as the reference value, so that a comparison with the previous periodic inspection can be made.

[0134] (3) The measurement value recording device 2, 2a according to the third embodiment is the measurement value recording device 2, 2a according to (1) or (2), and includes a voice recognition unit 16, 16a that recognizes the speech of the person who measures the radiation, and the measurement position acquisition unit acquires information indicating the measurement position when the result of the speech recognition by the voice recognition unit is related to the measurement position. According to this embodiment, the measurement position can be selected by the speech of the person who measures the radiation, so that the person who measures the radiation does not need to specify the measurement position to be linked to the measurement value by operating with his / her own hand. For example, while holding the radiation measuring device 7 in one hand and the measurement value recording device 2, 2a in the other hand, the measurement value can be linked to the measurement position specified based on the position of the cursor 51 selected by speech and electronically recorded in the measurement value recording device 2, 2a, so that the time required for recording the measurement value can be further shortened.

[0135] (4) The measurement value recording device 2, 2a according to the fourth aspect is the measurement value recording device 2, 2a according to (1) to (3), and the measurement value acquisition unit acquires the measurement value output by the voice recognition unit through voice recognition. According to this aspect, the measurement value can be recorded in the measurement value recording device 2, 2a by the speech of the measurer 100 without connecting the radiation measurement device 7 to the measurement value recording device 2, 2a. Therefore, there is no need to improve the radiation measurement device 7, for example, by transmitting the measurement value to the measurement value recording device 2, and a device with a proven track record can be used as the radiation measurement device 7 as it is. Therefore, from the viewpoint of quality control, the quality of the measurement value obtained by measuring the radiation level remains unchanged, and it is possible to ensure the same measurement accuracy as before.

[0136] (5) The measurement value recording device 2a according to the fifth aspect is the measurement value recording device 2a according to (1) to (4), and includes an imaging unit 20, and the judgment unit 19a makes the judgment by considering the difference between image information obtained by the imaging unit taking an image in association with the acquisition of the measurement value by the measurement value acquisition unit, and reference image information linked to information indicating the measurement position acquired by the measurement position acquisition unit in association with the acquisition of the measurement value. According to this aspect, it is possible to determine whether the measurement value is within the allowable range by, for example, reflecting the difference between the image information and the reference image information in the allowable range. In other words, it is possible to make a judgment taking into account changes in the environment around the measurement position, thereby making it possible to make a more accurate judgment.

[0137] (6) A sixth aspect of the measurement value recording device 2, 2a is the measurement value recording device 2, 2a of (1) to (5), in which the judgment unit, when judging the measurement value of the judgment target, refers to the judgment result for the measurement value in the vicinity of the measurement position based on information indicating the measurement position acquired by the measurement position acquisition unit in connection with acquisition of the measurement value of the judgment target, and judges the measurement value of the judgment target by taking into consideration the judgment result referred to. According to this aspect, by using the judgment result in the vicinity of the measurement position where the measurement value of the judgment target was measured, the tendency of the radiation level around the measurement position where the measurement value of the judgment target was measured is more strongly represented, so that it is possible to make a more accurate judgment on the measurement value of the judgment target.

[0138] (7) A seventh aspect of the measurement value recording device 2, 2a is the measurement value recording device 2, 2a of (1) to (6), in which the judgment unit makes the judgment each time the measurement value acquisition unit acquires one measurement value or each time the measurement value acquisition unit acquires multiple measurement values. According to this aspect, the timing at which the judgment for the measurement value is made can be flexibly changed, making it possible to adjust the time spent at the measurement location, etc. [Explanation of symbols]

[0139] 1. Radiation measurement and recording system 2. Measurement value recording device 3…Display screen 4. Earphones 5. Mike 6…Connection cable 7. Radiation measuring device 8. Display 10...Operation unit 11...Storage section 12...Recording section 13...Display processing unit 14...Interface section 15...Audio output section 16…Voice recognition section 17…Measurement position acquisition unit 18…Measurement value acquisition section 19…Judgment section 100…Measurer

Claims

1. A measurement value recording device carried by an operator who measures radiation levels at a nuclear power plant, a measurement value acquiring unit for acquiring a measurement value indicating a level of the radiation; a measurement position acquisition unit that acquires information indicating a measurement position in the nuclear power plant; a recording unit that associates the measurement value acquired by the measurement value acquisition unit with information indicating the measurement position acquired by the measurement position acquisition unit in association with the acquisition of the measurement value, and records the associated information in a storage unit; a determination unit that determines whether or not a measurement value acquired by the measurement value acquisition unit is within an allowable range based on a reference value linked to information indicating a measurement position acquired by the measurement position acquisition unit in relation to acquisition of the measurement value, and performs a predetermined notification process when it is determined that the measurement value is not within the allowable range; A measurement value recording device comprising:

2. The reference value is a measurement value acquired by the measurement value acquisition unit during the previous periodic inspection of the nuclear power plant, or a value calculated by performing a predetermined calculation on the measurement value acquired by the measurement value acquisition unit during the previous periodic inspection of the nuclear power plant.

2. A measurement value recording device according to claim 1.

3. a voice recognition unit that recognizes the speech of the subject, The measurement position acquisition unit When the result of the speech recognition by the speech recognition unit is a content related to a measurement position, information indicating the measurement position is acquired.

2. A measurement value recording device according to claim 1.

4. The measurement value acquisition unit The measurement value output by the voice recognition unit through voice recognition is acquired.

4. A measurement value recording device according to claim 3.

5. It is equipped with an imaging unit, The determination unit is the determination is made in consideration of a difference between image information obtained by the imaging unit in association with the acquisition of the measurement values ​​by the measurement value acquisition unit and reference image information linked to information indicating the measurement position acquired by the measurement position acquisition unit in association with the acquisition of the measurement values.

2. A measurement value recording device according to claim 1.

6. The determination unit is When making a judgment on the measurement value of the judgment target, a judgment result for the measurement value in the vicinity of the measurement position is referenced based on information indicating the measurement position acquired by the measurement position acquisition unit in connection with acquisition of the measurement value of the judgment target, and the measurement value of the judgment target is judged taking into consideration the referenced judgment result.

2. A measurement value recording device according to claim 1.

7. The determination unit is The determination is performed each time the measurement value acquisition unit acquires one measurement value, or each time the measurement value acquisition unit acquires multiple measurement values.

2. A measurement value recording device according to claim 1.

8. A radiation measurement and recording system comprising: a radiation measurement device carried by an operator; and a measurement value recording device carried by the operator who measures radiation levels using the radiation measurement device in a nuclear power plant, The measurement value recording device is a measurement value acquiring unit that acquires a measurement value indicating a level of radiation measured by the radiation measuring device; a measurement position acquisition unit that acquires information indicating a measurement position in the nuclear power plant; a recording unit that associates the measurement value acquired by the measurement value acquisition unit with information indicating the measurement position acquired by the measurement position acquisition unit in association with the acquisition of the measurement value, and records the associated information in a storage unit; a determination unit that determines whether or not a measurement value acquired by the measurement value acquisition unit is within an allowable range based on a reference value linked to information indicating a measurement position acquired by the measurement position acquisition unit in relation to acquisition of the measurement value, and performs a predetermined notification process when it is determined that the measurement value is not within the allowable range; A radiation measurement and recording system comprising:

9. 1. A method for recording measurements indicative of radiation levels measured at a nuclear power plant, comprising: a measurement value acquisition step of acquiring the measurement value; a measurement position acquisition step of acquiring information indicating a measurement position in the nuclear power plant; a recording step of linking the measurement value acquired by the measurement value acquiring step with information indicating the measurement position acquired by the measurement position acquiring step in association with the acquisition of the measurement value, and recording the linked information in a storage unit; a determination step of determining whether or not the measurement value acquired by the measurement value acquisition step is within an allowable range based on a reference value linked to information indicating a measurement position acquired by the measurement position acquisition step in association with acquisition of the measurement value, and performing a predetermined notification process when it is determined in the determination that the measurement value is not within the allowable range; A method for recording measurement values ​​including:

10. 1. A program for recording measurements indicative of levels of radiation measured at a nuclear power plant, comprising: a measurement value acquisition step of acquiring the measurement value; a measurement position acquisition step of acquiring information indicating a measurement position in the nuclear power plant; a recording step of associating the measurement value acquired by the measurement value acquiring step with information indicating the measurement position acquired by the measurement position acquiring step in association with the acquisition of the measurement value in a storage unit; a determination step of determining whether or not the measurement value acquired by the measurement value acquisition step is within an allowable range based on a reference value linked to information indicating a measurement position acquired by the measurement position acquisition step in association with acquisition of the measurement value, and performing a predetermined notification process when it is determined that the measurement value is not within the allowable range in the determination step; A program that causes a computer to execute the following.

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