Maintenance inspection management apparatus, maintenance inspection management system, maintenance inspection timing determination method, and maintenance inspection timing determination program

Abstract

To provide a maintenance inspection management apparatus, a maintenance inspection management system, a maintenance inspection timing determination method, and a maintenance inspection timing determination program with which appropriate maintenance or inspection timing for each device can be determined in accordance with an environment in which the device to be maintained or inspected is installed.SOLUTION: A management apparatus 10 includes: color information acquisition units 112, 113 which acquire grayscale-converted color information of a code from a captured image of a one-dimensional code or a two-dimensional code printed with ink containing a substance whose color changes into black by oxidization, the code being attached to a device to be maintained or inspected; a color information determination unit 114 which determines whether or not a color indicated by the acquired color information is the same as a prescribed intermediate color of white and black or darker than the prescribed intermediate color; and a maintenance inspection timing determination unit 115 which determines, when the color indicated by the color information is determined to be the same as the prescribed intermediate color or darker than the prescribed intermediate color, that it is a time requiring maintenance or inspection of the device.SELECTED DRAWING: Figure 9

Description

Technical Field

[0001] The present disclosure relates to a maintenance inspection management device, a maintenance inspection management system, a maintenance inspection timing determination method, and a maintenance inspection timing determination program for determining the timing of maintenance or inspection of a device.

Background Art

[0002] Conventionally, devices that require maintenance or inspection have been used in various environments. For such devices, it is necessary to appropriately determine the timing of maintenance or inspection according to the environment in which each device is placed.

[0003] Regarding this point, the quality control method disclosed in Patent Document 1 is a quality control method for articles to which an environmental change part and a management number that change when deviating from the storage environment are assigned. The number of articles that have deviated from the storage environment is calculated from the presence or absence of a change in the environmental change part of the article at at least the end point of the distribution route of the article, and the number of articles that have deviated from the storage environment, the position information of the base point of the distribution route where the presence or absence of a change in the environmental change part has been confirmed, the time when the presence or absence of a change in the environmental change part has been confirmed, and the cargo form information in the distribution route are used to estimate the stage at which the storage environment has been deviated.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, since the quality control method disclosed in Patent Document 1 is a technique that has a problem of estimating the distribution route in which the storage environment of parts flowing through a plurality of distribution routes has deviated, there is a problem that it is not possible to determine an appropriate maintenance or inspection timing for each device according to the environment in which the device to be maintained or inspected is installed.

[0006] One of the objects of the present disclosure is to provide a maintenance inspection management device, a maintenance inspection management system, a maintenance inspection timing determination method, and a maintenance inspection timing determination program capable of determining an appropriate maintenance or inspection timing for each device according to the environment in which the device to be maintained or inspected is installed in view of the above-described problems.

Means for Solving the Problems

[0007] The maintenance inspection management device according to the present disclosure is a color information acquisition unit that acquires color information obtained by gray-scale conversion of a one-dimensional code or a two-dimensional code printed with an ink containing a substance whose color changes to black by oxidation, which is attached to a device to be maintained or inspected; a color information determination unit that determines whether the color indicated by the color information acquired by the color information acquisition unit is the same as a predetermined intermediate color between white and black or darker than the predetermined intermediate color; and a maintenance inspection timing determination unit that determines that it is a time when maintenance or inspection of the target device is necessary when it is determined that the color indicated by the color information is the same as the predetermined intermediate color or darker than the predetermined intermediate color.

[0008] The maintenance inspection management system according to the present disclosure is a photographing device that photographs a one-dimensional code or a two-dimensional code printed with an ink containing a substance whose color changes to black by oxidation, which is attached to a device to be maintained or inspected, and generates a photographed image of the one-dimensional code or the two-dimensional code; a color information acquisition unit that acquires color information obtained by gray-scale conversion of the one-dimensional code or the two-dimensional code from the photographed image generated by the photographing device; a color information determination unit that determines whether the color indicated by the color information acquired by the color information acquisition unit is the same as a predetermined intermediate color between white and black or darker than the predetermined intermediate color; and a maintenance inspection timing determination unit that determines that it is a time when maintenance or inspection of the target device is necessary when it is determined that the color indicated by the color information is the same as the predetermined intermediate color or darker than the predetermined intermediate color.

[0009] The maintenance inspection timing determination method according to the present disclosure is such that a computer Obtain the grayscale-converted color information of a one-dimensional code or two-dimensional code printed with ink containing a substance that changes color to black upon oxidation and is attached to a device to be maintained or inspected, Determine whether the color indicated by the obtained color information is the same as a predetermined intermediate color between white and black or darker than the predetermined intermediate color, When it is determined that the color indicated by the color information is the same as the predetermined intermediate color or darker than the predetermined intermediate color, determine that it is the time when maintenance or inspection of the target device is necessary.

[0010] The maintenance and inspection timing determination program according to the present disclosure, A step of obtaining the grayscale-converted color information of a one-dimensional code or two-dimensional code printed with ink containing a substance that changes color to black upon oxidation and is attached to a device to be maintained or inspected, A step of determining whether the color indicated by the obtained color information is the same as a predetermined intermediate color between white and black or darker than the predetermined intermediate color, When it is determined that the color indicated by the color information is the same as the predetermined intermediate color or darker than the predetermined intermediate color, a step of determining that it is the time when maintenance or inspection of the target device is necessary are executed by a computer.

Advantages of the Invention

[0011] According to the present disclosure, it is possible to provide a maintenance and inspection management device, a maintenance and inspection management system, a maintenance and inspection timing determination method, and a maintenance and inspection timing determination program that can determine an appropriate maintenance or inspection timing for each device according to the environment in which the device to be maintained or inspected is installed.

Brief Description of the Drawings

[0012]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Mode for Carrying Out the Invention

[0013] Hereinafter, an exemplary embodiment will be described with reference to the drawings. FIG. 1 is a schematic diagram showing an example of a maintenance inspection management system 1 according to the present disclosure. The maintenance inspection management system 1 includes a management device 10, one or more imaging devices 20, and one or more terminal devices 30. The management device 10, the imaging device 20, and the terminal device 30 can transmit and receive data to and from each other via a network 40. The network 40 can be configured to include various wide-area networks and local-area networks. The wide-area network and the local-area network can each include a wireless communication network and a wired communication network. In the wireless communication of the wide-area network, for example, LPWA (Low Power Wide Area) or the like can be adopted. In the wireless communication of the local-area network, for example, Wi-Fi (registered trademark), Bluetooth (registered trademark), or the like can be adopted.

[0014] The management device 10 is an information processing device for managing the maintenance or inspection of the device 21 to be maintained or inspected. Specific examples of the management device 10 include a server and the like. The management device 10 corresponds to a maintenance and inspection management device. Details of the management device 10 will be described later.

[0015] The imaging device 20 is a device that images a one-dimensional code or a two-dimensional code (hereinafter referred to as "code") attached to the target device 21 associated with the imaging device 20. The code is printed with an ink containing a substance whose color changes to black by oxidation (hereinafter referred to as "discoloring substance"). Specific examples of the discoloring substance include ferric tannate and the like. In order to prevent the code from being exposed to the atmosphere, the upper surface of the code is preferably covered with a film as shown in FIG. 2. This film is peeled off when the target device 21 is installed at a predetermined location and starts operating. It is preferable to employ a light-fast ink as the ink.

[0016] Based on an instruction from the management device 10, the imaging device 20 images the code to generate an imaging image and transmits the imaging image to the management device 10. Note that the imaging device 20 may image the code based on an instruction manually given by an operator.

[0017] The terminal device 30 is an information processing device that processes notifications transmitted from the management device 10. Specific examples of the terminal device 30 include a PC (Personal Computer), a smartphone, and the like. The terminal device 30 is used by an operator or the like who performs maintenance or inspection of the target device 21.

[0018] FIG. 3 is a diagram showing an example of the configuration of the management device 10. The management device 10 includes an arithmetic device 11, a communication interface (I / F) 12, and a storage device 13.

[0019] The arithmetic unit 11 is a device that performs overall control of the management device 10. Specific examples of the arithmetic unit 11 include processors such as a CPU (Central Processing Unit) and an MPU (Micro Processing Unit). The arithmetic unit 11 executes the program stored in the storage device 13, thereby executing the method defined by the program. In other embodiments, the functions executed by the arithmetic unit 11 may also be executed by an integrated circuit such as an FPGA (Field-Programmable Gate Array) or an ASIC (Application Specific Integrated Circuit). These devices correspond to a computer.

[0020] The communication interface 12 is an interface for performing data communication between the management device 10 and other devices.

[0021] The storage device 13 stores various data such as the program executed by the arithmetic unit 11, the data processed by the arithmetic unit 11, a management table, and an identification information table. The management table is a data table in which information regarding maintenance or inspection of the target device 21 is registered. FIG. 4 is a diagram showing an example of the management table. In the example shown in FIG. 4, the product number of the target device 21, the serial number which is the identification information of the target device 21, the operation start date of the target device 21, and the implementation date of maintenance or inspection of the target device 21 are registered. Further, the scheduled date for photographing the code attached to the target device 21, the execution date of code photographing, a default pixel value used as a threshold value, and the determination result of maintenance or inspection of the target device 21 are registered. The default pixel value is a pixel value for determining whether it is time for maintenance or inspection of the target device 21. The default pixel value can be set for each type of the target device 21. As shown in the upper management table of FIG. 4, as initial values, the product number of the target device 21, the serial number, the operation start date, the scheduled date for photographing the code, and the default pixel value can be registered.

[0022] The identification information table is a data table in which the identification information of the target device 21 and the identification information of the imaging device 20 are registered in association with each other. FIG. 5 is a diagram showing an example of the identification information table. As shown in FIG. 5, in the identification information table, the serial number which is the identification information of the target device 21, the identification information of the imaging device 20, and the identification information of the terminal device 30 are registered in association with each other.

[0023] The arithmetic unit 11 executes a photographing instruction unit 110 which is a program, a reception determination unit 111, an analysis processing unit 112, a color conversion unit 113, a color information determination unit 114, a maintenance inspection timing determination unit 115, a photographing date determination unit 116, and a table update unit 117.

[0024] The photographing instruction unit 110 is a program that instructs the imaging device 20 to photograph the code attached to the target device 21 associated with the imaging device 20. The photographing instruction unit 110 refers to the management table, and when the scheduled photographing date registered in the management table arrives, it instructs the imaging device 20 associated with the scheduled photographing date to photograph the code. More specifically, the photographing instruction unit 110 refers to the management table as shown in FIG. 4, and specifies the serial number which is the identification information of the target device 21 related to the arrived scheduled photographing date. Next, the photographing instruction unit 110 refers to the identification information table as shown in FIG. 5, and specifies the identification information of the imaging device 20 associated with the specified serial number. Then, the photographing instruction unit 110 instructs the imaging device 20 indicated by the identification information of the specified imaging device 20 to photograph the code.

[0025] The reception determination unit 111 is a program that determines whether or not the imaging device 20 has received the photographed image.

[0026] The analysis processing unit 112 is a program that analyzes the photographed image generated by the imaging device 20 to specify the code, and acquires the color information which is the color information of the specified code itself and the encoded information of the code. The encoded information of the code is the information embedded in the code. The encoded information of the code includes the product number and serial number of the target device 21.

[0027] The color conversion unit 113 is a program that converts the color information of the code acquired by the analysis processing unit 112 into grayscale. The analysis processing unit 112 and the color conversion unit 113 correspond to a color information acquisition unit.

[0028] The color information determination unit 114 is a program that determines whether the color of the code grayscale-converted by the color conversion unit 113 is the same as a predetermined intermediate color between white and black or darker than the predetermined intermediate color. The predetermined intermediate color can be any color among the intermediate colors of white and black. Specifically, the color information determination unit 114 determines whether the pixel value representing the color of the grayscale-converted code is less than or equal to a predetermined pixel value. For example, when adopting an 8-bit grayscale, a value other than 0 (black) and 255 (white) can be adopted as the predetermined pixel value. The predetermined pixel value corresponds to the pixel value representing the predetermined intermediate color.

[0029] Based on the determination result of the color information determination unit 114, the maintenance inspection timing determination unit 115 is a program that determines whether it is a time when maintenance or inspection of the target device 21 is necessary. When it is determined that the color of the grayscale-converted code is the same as the predetermined intermediate color or darker than the predetermined intermediate color, the maintenance inspection timing determination unit 115 determines that it is a time when maintenance or inspection of the target device 21 is necessary. On the other hand, when it is determined that the color of the grayscale-converted code is lighter than the predetermined intermediate color, the maintenance inspection timing determination unit 115 determines that it is not a time when maintenance or inspection of the target device 21 is necessary.

[0030] The shooting date determination unit 116 is a program that determines a scheduled shooting date when the imaging device 20 re-shoots the code attached to the target device 21. Specifically, the shooting date determination unit 116 determines the scheduled shooting date based on the number of days corresponding to the difference between the pixel value (grayscale) of the code and the predetermined pixel value.

[0031] FIG. 6 is a diagram showing the pixel value (gray scale) of the code and the number of days corresponding to the difference between the pixel value of the code and a predetermined pixel value (hereinafter referred to as "the number of days corresponding to the pixel difference"). FIG. 6 is an example when the predetermined pixel value is "75", and the number of days related to the predetermined pixel value "75" is set to "0". For example, when the pixel value of the code obtained based on the captured image of the code is "125", the number of days "150" associated with the pixel value "125" is specified as the number of days corresponding to the pixel value difference. In this case, the shooting date determination unit 116 determines the date 150 days after the shooting execution date as the scheduled shooting date.

[0032] As shown in FIG. 6, the number of days corresponding to the pixel value difference is set so that it increases as the difference between the pixel value of the code and the predetermined pixel value becomes larger. In other words, the number of days corresponding to the pixel value difference is set so that it decreases as the difference between the pixel value of the code and the predetermined pixel value becomes smaller.

[0033] As shown in FIG. 6, the pixel value of the code is associated with the assumed number of days elapsed when the device 21 to which the code is attached is placed at a predetermined installation location. The number of days corresponding to the pixel value difference can be derived based on the difference between the assumed number of days elapsed corresponding to the predetermined pixel value and the assumed number of days elapsed corresponding to the pixel value of the code obtained based on the captured image of the code. For example, the number of days "150" corresponding to the pixel value difference can be derived based on the difference between the assumed number of days elapsed "250" corresponding to the predetermined pixel value "75" and the assumed number of days elapsed "150" corresponding to the pixel value "125" of the code obtained based on the captured image of the code. Note that the numerical values shown in FIG. 6 are examples and are not limited thereto.

[0034] The table update unit 117 is a program for updating the management table as shown in FIG. 4.

[0035] FIG. 7 is a sequence diagram showing an example of a process executed in the maintenance inspection management system 1. In step S1, the management device 10 transmits a shooting instruction to the imaging device 20. When the imaging device 20 receives the shooting instruction from the management device 10, it executes a shooting process in step S2 to generate a captured image of the code. In step S3, the imaging device 20 transmits the captured image of the code to the management device 10.

[0036] In step S4, the management device 10 analyzes the captured image of the code received from the imaging device 20 to obtain the color information of the code and the encoded information of the code. In step S5, the management device 10 performs grayscale conversion on the color information of the code. In step S6, the management device 10 determines whether the pixel value of the grayscale-converted color information of the code is less than or equal to a predetermined pixel value. If it is determined that the pixel value of the grayscale-converted color information of the code is less than or equal to the predetermined pixel value, the management device 10 determines in step S7 that it is time to perform maintenance or inspection on the target device 21.

[0037] In step S8, the management device 10 transmits a notification to the terminal device 30 indicating that it is time to perform maintenance or inspection on the target device 21. When the terminal device 30 receives the notification from the management device 10, it notifies the user of the terminal device 30 in step S9 that it is time to perform maintenance or inspection on the target device 21.

[0038] FIG. 8 is a flowchart showing an example of the process executed by the management device 10. In step S11, the shooting instruction unit 110 refers to the management table and determines whether the scheduled shooting date registered in the management table has arrived. If it is determined that the scheduled shooting date has not arrived (NO), the process of step S11 is executed again. On the other hand, if it is determined that the scheduled shooting date has arrived (YES), in step S12, the shooting instruction unit 110 refers to the management table and the identification information table, identifies the target device 21 related to the arrived scheduled shooting date, and identifies the identification information of the shooting device 20 associated with the target device 21. In step S13, the shooting instruction unit 110 transmits a shooting instruction to the shooting device 20 indicated by the identification information of the identified shooting device 20.

[0039] In step S14, the reception determination unit 111 determines whether it has received the captured image generated by the imaging device 20. If it is determined that the captured image has not been received (NO), the process of step S14 is executed again. On the other hand, if it is determined that the captured image has been received (YES), the process branches to step S15. The captured image is added with the identification information of the imaging device 20 that generated the captured image.

[0040] In step S15, the analysis processing unit 112 executes analysis processing on the captured image generated by the imaging device 20. In step S16, the analysis processing unit 112 stores the color information of the code obtained by the analysis processing of the captured image in the storage device 13.

[0041] In step S17, the color conversion unit 113 converts the color information of the code acquired by the analysis processing unit 112 into grayscale. In step S18, the color information determination unit 114 determines whether the pixel value of the color information of the code converted into grayscale is equal to or less than the predetermined pixel value registered in the management table. At this time, the color information determination unit 114 refers to the identification information table and identifies the identification information of the target device 21 associated with the identification information of the imaging device 20 added to the received captured image. Then, the color information determination unit 114 refers to the management table and identifies the predetermined pixel value associated with the identification information of the identified target device 21.

[0042] When it is determined that the pixel value of the color information of the grayscale-converted code is less than or equal to a predetermined pixel value (YES), the maintenance inspection timing determination unit 115 determines that it is the time when maintenance or inspection of the target device 21 is necessary, and in step S19, notifies the terminal device 30 that the time when maintenance or inspection of the target device 21 is due has arrived. At this time, the maintenance inspection timing determination unit 115 refers to the identification information table and identifies the identification information of the terminal device 30 associated with the identification information of the imaging device 20 added to the received captured image, thereby identifying the terminal device 30 to which the notification is to be sent.

[0043] In step S20, the table update unit 117 updates the management table. At this time, as shown in the management table in the center of FIG. 4, the table update unit 117 registers that maintenance or inspection is necessary as the management information of the device to which the code whose pixel value is determined to be less than or equal to the predetermined pixel value is attached, and the imaging execution date of the code, and deletes the imaging scheduled date of the code.

[0044] On the other hand, when it is determined that the pixel value of the color information of the grayscale-converted code exceeds the predetermined pixel value (NO), in step S21, the imaging date determination unit 116 determines the imaging scheduled date when the imaging device 20 re-images the code based on the number of days corresponding to the pixel difference between the pixel value of the color information of the code and the predetermined pixel value.

[0045] In step S22, the table update unit 117 updates the management table, and the process returns to step S11. At this time, as shown in the management table in the center of FIG. 4, the table update unit 117 registers that maintenance or inspection is unnecessary as the management information of the device to which the code whose pixel value is determined to exceed the predetermined pixel value is attached, and the imaging execution date of the code, and updates the imaging scheduled date of the code.

[0046] After that, when maintenance or inspection is determined to be necessary for the target device 21, if maintenance or inspection is performed on the target device 21 and the code is replaced, the table update unit 117 registers, as the management information of the device, that maintenance or inspection is unnecessary, the date of maintenance or inspection of the device, and the scheduled shooting date of the code, as shown in the management table on the lower side of FIG. 4.

[0047] FIG. 9 is a diagram showing the main components of the management device 10. The management device 10 includes color information acquisition units 112 and 113, a color information determination unit 114, and a maintenance / inspection timing determination unit 115. The color information acquisition units 112 and 113 acquire the grayscale-converted color information of the code printed with the ink containing a substance that changes color to black by oxidation, which is attached to the device 21 to be maintained or inspected. The color information determination unit 114 determines whether the color indicated by the acquired color information is the same as or darker than the predetermined intermediate color between white and black. The maintenance / inspection timing determination unit 115 determines that it is a time when maintenance or inspection of the target device 21 is necessary when it is determined that the color indicated by the color information is the same as or darker than the predetermined intermediate color.

[0048] Since the code attached to the device 21 to be maintained or inspected is printed with the ink containing a discoloring substance that changes color to black by oxidation, as time passes, the blackening rate of the code changes depending on the oxidation rate according to the temperature, humidity, etc. of the place where the target device 21 is installed. The maintenance / inspection timing determination unit 115 determines that it is a time when maintenance or inspection of the target device 21 is necessary when it is determined that the color of the code that changes according to the environment where the target device 21 is installed is the same as or darker than the predetermined intermediate color.

[0049] Accordingly, it is possible to determine an appropriate maintenance or inspection timing for each device according to the environment in which the target device 21 is installed. As a result, the maintenance or inspection of the device can be performed at an appropriate time, and the human and financial costs required for maintenance or inspection can be reduced. In addition, since the maintenance or inspection timing can be determined without checking the inside of the target device 21, the working efficiency required for maintenance or inspection can be increased.

[0050] In the above-described embodiment, when the photographing date determination unit 116 determines that the color of the code is whiter than the predetermined intermediate color, the photographing scheduled date for the photographing device 20 to photograph the code attached to the target device 21 again is determined based on the number of days corresponding to the difference between the pixel value representing the color of the code and the predetermined pixel value representing the predetermined intermediate color. As described above, the predetermined pixel value is a pixel value for determining whether or not it is time to perform maintenance or inspection of the target device 21. As shown in FIG. 6, the greater the difference between the pixel value representing the color of the code and the predetermined pixel value, in other words, the smaller the rate of blackening of the ink due to oxidation, the greater the number of days corresponding to the pixel difference, and the later the photographing scheduled date for photographing the code again. Therefore, the photographing scheduled date for the code attached to the target device 21 installed in an environment where the oxidation reaction of the discoloring substance contained in the ink is relatively weak is delayed.

[0051] On the other hand, the smaller the difference between the pixel value of the code color information and the predetermined pixel value, in other words, the greater the rate of blackening of the ink due to oxidation, the smaller the number of days corresponding to the pixel difference, and the earlier the photographing scheduled date for photographing the code again. Therefore, the photographing scheduled date for the code attached to the target device 21 installed in an environment where the oxidation reaction of the discoloring substance contained in the ink is relatively strong is earlier.

[0052] The color information acquisition units 112 and 113 acquire the color information of the code in grayscale conversion from the captured image of the code captured on the scheduled shooting date determined in this way. Then, when it is determined that the color indicated by this color information is the same as the predetermined intermediate color or darker than the predetermined intermediate color, the maintenance inspection timing determination unit 115 determines that it is the time when maintenance or inspection of the target device 21 is necessary. Thereby, an appropriate shooting date can be determined for each device according to the environment in which the target device 21 is installed, and the timing of maintenance or inspection of the target device 21 can be determined based on the state of the code captured on that shooting date.

[0053] Furthermore, in the above-described embodiment, the ink can contain an oxidation promoter that promotes the oxidation of the discoloring substance or an oxidation inhibitor that inhibits the oxidation of the discoloring substance. FIG. 10 is a diagram showing the temporal change in the color of ink 80 that contains a discoloring substance and does not contain an oxidation promoter and an oxidation inhibitor, ink 81 that contains a discoloring substance and an oxidation promoter, and ink 82 that contains a discoloring substance and an oxidation inhibitor. The ink 81 containing the oxidation promoter has a faster blackening rate than the inks 80 and 82. On the other hand, the ink 82 containing the oxidation inhibitor has a slower blackening rate than the inks 80 and 81. Therefore, by adjusting the amount of the oxidation promoter or the oxidation inhibitor and adjusting the discoloration rate of the discoloring substance, the timing when it is determined that maintenance or inspection of the target device 21 is necessary can be adjusted.

[0054] Also, as described above, it is preferable to employ a non-lightfast ink as the ink. Thereby, as time passes, the color of the ink disappears and only the color of the discoloring substance remains, so that the determination accuracy of the color of the code can be improved.

[0055] In the above-described embodiment, the color information of the code is acquired from the captured image of the code generated by the imaging device 20. However, in other embodiments, a spectrophotometer may be used instead of the imaging device 20 to acquire the color information of the code.

[0056] In the above example, when the program is loaded into a computer, it includes a set of instructions (or software code) for causing the computer to perform one or more functions described in the embodiments. The program may be stored in a non-transitory computer-readable medium or a tangible storage medium. By way of example and not limitation, the computer-readable medium or tangible storage medium includes random-access memory (RAM), read-only memory (ROM), flash memory, solid-state drive (SSD), or other memory technologies, CD-ROM, digital versatile disk (DVD), Blu-ray (registered trademark) disk, or other optical disk storage, magnetic cassette, magnetic tape, magnetic disk storage, or other magnetic storage devices. The program may also be transmitted on a transitory computer-readable medium or a communication medium. By way of example and not limitation, the transitory computer-readable medium or communication medium includes electrical, optical, acoustic, or other forms of propagated signals.

[0057] As described above, the present disclosure has been described with reference to the embodiments, but the present disclosure is not limited to the above-described embodiments. Various changes that can be understood by those skilled in the art can be made to the configuration and details of the present disclosure within the scope of the present disclosure. And each embodiment can be combined with other embodiments as appropriate.

[0058] Each drawing is merely an illustration for explaining one or more embodiments. Each drawing is not associated with only one specific embodiment, but may be associated with one or more other embodiments. As can be understood by those skilled in the art, various features or steps described with reference to any one drawing can be combined with features or steps shown in one or more other drawings to create, for example, embodiments not explicitly illustrated or described. Not all of the features or steps shown in any one drawing for explaining exemplary embodiments are necessarily essential, and some features or steps may be omitted. The order of the steps described in any drawing may be changed as appropriate.

[0059] Some or all of the above embodiments may be described as follows in the appended claims, but are not limited thereto. (Appendix 1) A color information acquisition unit that acquires grayscale-converted color information of a one-dimensional code or a two-dimensional code printed with ink containing a substance whose color changes to black by oxidation, which is attached to a device to be maintained or inspected; A color information determination unit that determines whether the color indicated by the color information acquired by the color information acquisition unit is the same as a predetermined intermediate color between white and black or darker than the predetermined intermediate color; A maintenance / inspection timing determination unit that determines that it is the time when maintenance or inspection of the target device is necessary when it is determined that the color indicated by the color information is the same as the predetermined intermediate color or darker than the predetermined intermediate color A maintenance / inspection management device including the above. (Appendix 2) When it is determined that the color indicated by the color information is lighter than the predetermined intermediate color, based on the number of days corresponding to the difference between the pixel value representing the color indicated by the color information and the pixel value representing the predetermined intermediate color, a shooting schedule determination unit that determines a shooting schedule for the imaging device to shoot the one-dimensional code or the two-dimensional code attached to the target device again; The color information acquisition unit acquires grayscale-converted color information of the one-dimensional code or the two-dimensional code from a captured image of the one-dimensional code or the two-dimensional code captured on the shooting schedule day, and the maintenance / inspection management device according to Appendix 1. (Appendix 3) When the shooting schedule day determined by the shooting schedule determination unit arrives, an imaging instruction unit that instructs the imaging device associated with the target device associated with the shooting schedule day to shoot the one-dimensional code or the two-dimensional code attached to the target device, and the maintenance / inspection management device according to Appendix 2. (Appendix 4) The ink contains an oxidation promoter that promotes oxidation of the substance or an oxidation inhibitor that inhibits oxidation of the substance, and the maintenance / inspection management device according to any one of Appendices 1 to 3. (Appendix 5) The maintenance inspection management device according to Supplementary Note 4, wherein the ink is a non-lightfast ink. (Supplementary Note 6) An imaging device that captures a one-dimensional code or a two-dimensional code printed with an ink containing a substance whose color changes to black by oxidation, which is attached to a device to be maintained or inspected, and generates a captured image of the one-dimensional code or the two-dimensional code, A color information acquisition unit that acquires gray-scale converted color information of the one-dimensional code or the two-dimensional code from the captured image generated by the imaging device, A color information determination unit that determines whether the color indicated by the color information acquired by the color information acquisition unit is the same as a predetermined intermediate color between white and black or darker than the predetermined intermediate color, A maintenance inspection timing determination unit that determines that it is the time when maintenance or inspection of the target device is necessary when it is determined that the color indicated by the color information is the same as the predetermined intermediate color or darker than the predetermined intermediate color A maintenance inspection management system including the above. (Supplementary Note 7) A computer acquires gray-scale converted color information of a one-dimensional code or a two-dimensional code printed with an ink containing a substance whose color changes to black by oxidation, which is attached to a device to be maintained or inspected, determines whether the color indicated by the acquired color information is the same as a predetermined intermediate color between white and black or darker than the predetermined intermediate color, When it is determined that the color indicated by the color information is the same as the predetermined intermediate color or darker than the predetermined intermediate color, it is determined that it is the time when maintenance or inspection of the target device is necessary Maintenance inspection timing determination method. (Supplementary Note 8) The computer further When it is determined that the color indicated by the color information is lighter than the predetermined intermediate color, based on the number of days corresponding to the difference between the pixel value representing the color indicated by the color information and the pixel value representing the predetermined intermediate color, a scheduled imaging date for the imaging device to capture the one-dimensional code or the two-dimensional code attached to the target device again is determined. The method for determining the maintenance inspection timing according to appended note 7, which acquires the color information obtained by gray-scale conversion of the one-dimensional code or two-dimensional code from the captured image of the one-dimensional code or two-dimensional code captured on the scheduled shooting date. (Appended note 9) The computer further When the determined scheduled shooting date arrives, the imaging device associated with the target device related to the scheduled shooting date is instructed to capture the one-dimensional code or two-dimensional code attached to the target device. The method for determining the maintenance inspection timing according to appended note 8. (Appended note 10) A step of acquiring the color information obtained by gray-scale conversion of a one-dimensional code or two-dimensional code printed with an ink containing a substance whose color changes to black by oxidation, which is attached to the device to be maintained or inspected; A step of determining whether the color indicated by the acquired color information is the same as a predetermined intermediate color between white and black or darker than the predetermined intermediate color; When it is determined that the color indicated by the color information is the same as the predetermined intermediate color or darker than the predetermined intermediate color, a step of determining that it is the time when maintenance or inspection of the target device is necessary A maintenance inspection timing determination program that causes a computer to execute. (Appended note 11) When it is determined that the color indicated by the color information is lighter than the predetermined intermediate color, based on the number of days corresponding to the difference between the pixel value representing the color indicated by the color information and the pixel value representing the predetermined intermediate color, the computer is further caused to execute a step of determining the scheduled shooting date for the imaging device to capture the one-dimensional code or two-dimensional code attached to the target device again. The step of acquiring color information includes the step of acquiring the color information obtained by gray-scale conversion of the one-dimensional code or two-dimensional code from the captured image of the one-dimensional code or two-dimensional code captured on the scheduled shooting date. The maintenance inspection timing determination program according to appended note 10. (Appended note 12) When the determined scheduled shooting date arrives, the computer is further caused to execute a step of instructing the imaging device associated with the target device related to the scheduled shooting date to capture the one-dimensional code or two-dimensional code attached to the target device. The maintenance inspection timing determination program according to Supplementary Note 11.

[0060] Some or all of the elements described in Supplementary Notes 2 to 5 subordinate to Supplementary Note 1 may be subordinate to Supplementary Note 6 in the same subordinate relationship as Supplementary Notes 2 to 5. Also, some or all of the elements described in Supplementary Notes 4 to 5 subordinate to Supplementary Note 1 may be subordinate to Supplementary Notes 7 and 10 in the same subordinate relationship as Supplementary Notes 4 to 5. Some or all of the elements described in any supplementary note may be applied to various hardware, software, recording means for recording software, systems, and methods.

Explanation of Signs

[0061] 1: Maintenance inspection management system 10: Management device, maintenance inspection management device 11: Arithmetic unit 12: Communication interface 13: Storage device 20: Imaging device 21: Target device 30: Terminal device 40: Network 80: Ink 81: Ink 82: Ink 110: Shooting instruction unit 111: Reception determination unit 112: Analysis processing unit, color information acquisition unit 113: Color conversion unit, color information acquisition unit 114: Color information determination unit 115: Maintenance inspection timing determination unit 116: Shooting date determination unit 117: Table update unit

Claims

1. A color information acquisition unit that acquires gray-scale converted color information of a one-dimensional code or a two-dimensional code printed with an ink containing a substance that changes color to black by oxidation, which is attached to a device to be maintained or inspected; A color information determination unit that determines whether the color indicated by the color information acquired by the color information acquisition unit is the same as a predetermined intermediate color between white and black or darker than the predetermined intermediate color; A maintenance / inspection timing determination unit that determines that it is the time when maintenance or inspection of the target device is necessary when it is determined that the color indicated by the color information is the same as the predetermined intermediate color or darker than the predetermined intermediate color; A maintenance / inspection management device including the above.

2. When it is determined that the color indicated by the color information is lighter than the predetermined intermediate color, based on the number of days corresponding to the difference between the pixel value representing the color indicated by the color information and the pixel value representing the predetermined intermediate color, a shooting schedule determination unit that determines a shooting schedule for determining that the imaging device re-shoots the one-dimensional code or the two-dimensional code attached to the target device is further included, The color information acquisition unit acquires gray-scale converted color information of the one-dimensional code or the two-dimensional code from a captured image of the one-dimensional code or the two-dimensional code captured on the shooting schedule day. The maintenance / inspection management device according to claim 1.

3. When the shooting schedule day determined by the shooting schedule determination unit arrives, a shooting instruction unit that instructs the imaging device associated with the target device associated with the shooting schedule day to shoot the one-dimensional code or the two-dimensional code attached to the target device. The maintenance / inspection management device according to claim 2.

4. The ink includes an oxidation accelerator that promotes oxidation of the substance or an oxidation inhibitor that suppresses oxidation of the substance. The maintenance / inspection management device according to any one of claims 1 to 3.

5. The ink is a non-lightfast ink. The maintenance / inspection management device according to claim 4.

6. An imaging device that captures a one-dimensional code or a two-dimensional code printed with an ink containing a substance that changes color to black by oxidation, which is attached to a device to be maintained or inspected, and generates a captured image of the one-dimensional code or the two-dimensional code; A color information acquisition unit that acquires gray-scale converted color information of the one-dimensional code or the two-dimensional code from the captured image generated by the imaging device; A color information determination unit that determines whether the color indicated by the color information acquired by the color information acquisition unit is the same as a predetermined intermediate color between white and black or darker than the predetermined intermediate color; A maintenance and inspection timing determination unit that determines that it is a time when maintenance or inspection of the target device is necessary when it is determined that the color indicated by the color information is the same as the predetermined intermediate color or darker than the predetermined intermediate color A maintenance and inspection management system including the above.

7. The computer Acquires grayscale-converted color information of a one-dimensional code or a two-dimensional code printed with ink containing a substance whose color changes to black by oxidation, which is attached to a device to be maintained or inspected, Determines whether the color indicated by the acquired color information is the same as a predetermined intermediate color between white and black or darker than the predetermined intermediate color, When it is determined that the color indicated by the color information is the same as the predetermined intermediate color or darker than the predetermined intermediate color, it is determined that it is a time when maintenance or inspection of the target device is necessary A maintenance and inspection timing determination method.

8. The computer further When it is determined that the color indicated by the color information is lighter than the predetermined intermediate color, based on the number of days corresponding to the difference between the pixel value representing the color indicated by the color information and the pixel value representing the predetermined intermediate color, determines a scheduled shooting date for the imaging device to re-shoot the one-dimensional code or two-dimensional code attached to the target device, The maintenance and inspection timing determination method according to claim 7, wherein grayscale-converted color information of the one-dimensional code or two-dimensional code photographed on the scheduled shooting date is acquired.

9. The computer further When the determined scheduled shooting date arrives, instructs the imaging device associated with the target device related to the scheduled shooting date to shoot the one-dimensional code or two-dimensional code attached to the target device. The maintenance and inspection timing determination method according to claim 8.

10. A step of acquiring grayscale-converted color information of a one-dimensional code or a two-dimensional code printed with ink containing a substance whose color changes to black by oxidation, which is attached to a device to be maintained or inspected, A step of determining whether the color indicated by the acquired color information is the same as a predetermined intermediate color between white and black or darker than the predetermined intermediate color, A step of determining that it is a time when maintenance or inspection of the target device is necessary when it is determined that the color indicated by the color information is the same as the predetermined intermediate color or darker than the predetermined intermediate color A maintenance inspection timing determination program that causes a computer to execute.

11. When it is determined that the color indicated by the color information is whiter than the predetermined intermediate color, based on the number of days corresponding to the difference between the pixel value representing the color indicated by the color information and the pixel value representing the predetermined intermediate color, causing the computer to further execute a step of determining a scheduled shooting date for the imaging device to re-shoot the one-dimensional code or two-dimensional code attached to the target device, The step of acquiring color information includes the step of acquiring the grayscale-converted color information of the one-dimensional code or two-dimensional code from the captured image of the one-dimensional code or two-dimensional code captured on the scheduled shooting date. The maintenance inspection timing determination program according to claim 10.

12. When the determined scheduled shooting date arrives, causing the computer to further execute a step of instructing the imaging device associated with the target device related to the scheduled shooting date to shoot the one-dimensional code or two-dimensional code attached to the target device. The maintenance inspection timing determination program according to claim 11.

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