JP7461510B2 - Diagnostic system, control device, diagnostic method and diagnostic program - Google Patents

Description

The present disclosure relates to a diagnostic system, a control device, a diagnostic method, and a diagnostic program for diagnosing machines.

For example, in machines used as production equipment in factories, such as NC (Numerical Control) machine tools, in order to prevent the leakage of manufacturing technology for products and parts manufactured using the machine, there are cases where the machine is not provided with ports for external storage media such as memory cards and USB (Universal Serial Bus) memory, and connection to a communication network is restricted, thereby preventing the output of data from the machine to the outside. In addition, for example, when a sealed structure is required due to the circumstances of the environment in which the machine is used, there are cases where no ports for external storage media are provided and wired network connections are restricted. When diagnosing or maintaining such machines, it is difficult to know the status of the machine and the parts that make up the machine remotely, because the means of extracting information from the machine are limited.

As a technology for presenting device information to the outside for fault diagnosis and maintenance without using external storage media or communications, Patent Document 1 discloses a technology that displays information stored in the device's information storage memory as a two-dimensional code, thereby reducing the user's workload.

Japanese Patent Application Publication No. 2013-101367

The technology described in Patent Document 1 uses two-dimensional codes to present diagnostic information for fault diagnosis and maintenance, but since the amount of information that can be converted into two-dimensional codes is limited, it is difficult to diagnose faults. There may be insufficient information for this purpose. Therefore, it is desirable to increase the amount of diagnostic information that can be presented.

The present disclosure has been made in view of the above, and aims to provide a diagnostic system that can increase the amount of diagnostic information that can be presented.

In order to solve the above-mentioned problems and achieve the object, the diagnostic system according to the present disclosure includes a control device that controls a machine, generates a plurality of divided data by dividing output data used for at least one of machine diagnosis and maintenance, generates transmission data in which data identification information that is identification information of the output data and division information that indicates the order of the divided data are added to each of the plurality of divided data, converts the transmission data into a two-dimensional code, and displays the two-dimensional code; and a server that receives shooting data that is data of an image in which the displayed two-dimensional code is photographed from an information terminal that photographed the image, extracts the two-dimensional code from the shooting data, decodes the extracted two-dimensional code, and restores output data from the plurality of decoded information using the data identification information and division information included in the decoded information obtained by decoding, and the control device determines the number of two-dimensional codes to be displayed simultaneously on one screen page when a plurality of two-dimensional codes corresponding to one output data are displayed across one or more screen pages, and the data size of the divided data corresponding to each of the plurality of two-dimensional codes displayed simultaneously, based on the number of pixels in the vertical and horizontal directions of an area in which the two-dimensional code can be displayed, the data size of the output data, and the number of pixels of one cell of a predetermined two-dimensional code.

The diagnostic system according to the present disclosure has the effect of increasing the amount of diagnostic information that can be presented.

A diagram showing a configuration example of a diagnostic system according to Embodiment 1. A diagram showing an example of a device data output screen in Embodiment 1 FIG. 1 is a diagram showing an example of a display screen of a two-dimensional code according to the first embodiment; FIG. 1 is a diagram showing an example of data generated by a transmission data conversion unit and a two-dimensional code generation unit of the control device according to the first embodiment; A diagram showing an example of a photographed image taken by the mobile information terminal of Embodiment 1 A diagram showing an example of a two-dimensional code in Embodiment 1 A flowchart showing an example of the operation of the server according to the first embodiment. A diagram showing an example of the configuration of a computer system that implements the control device of Embodiment 1. A diagram showing an example of a device data output screen in Embodiment 2 A diagram showing an example of data generated by the transmission data conversion unit and the two-dimensional code generation unit of the control device according to the second embodiment when compression processing is performed on output data. A diagram showing an example of a two-dimensional code output screen according to Embodiment 2 FIG. 13 is a diagram showing an example of an output screen of a two-dimensional code according to the second embodiment; Flowchart showing an example of the operation of the server according to the second embodiment A diagram showing a configuration example of a diagnostic system according to Embodiment 3 A diagram showing an example of the size of a two-dimensional code output screen displayed by the control device of Embodiment 3 A diagram showing an example of a two-dimensional code displayed by the control device of Embodiment 1 FIG. 1 is a diagram showing an example of a two-dimensional code displayed by the control device of the first embodiment; FIG. 13 is a diagram showing an example of a two-dimensional code displayed by a control device according to a third embodiment; A diagram showing a configuration example of a diagnostic system according to Embodiment 4 FIG. 13 is a diagram showing an example of a time chart of screen page display switching by an automatic page switching unit according to a fourth embodiment; FIG. 13 is a diagram showing an example of a method for extracting a two-dimensional code image when a moving image is captured in the fourth embodiment; FIG. 13 is a diagram showing an example of a method for extracting a two-dimensional code image when still images are continuously shot in the fourth embodiment; A diagram showing an example of a device data output screen in Embodiment 5 A diagram illustrating an example of data generated by the transmission data conversion unit and two-dimensional code generation unit of the control device of Embodiment 5. A flowchart showing an example of the operation of a server according to a fifth embodiment. A diagram showing a configuration example of a diagnostic system according to Embodiment 6 FIG. 23 is a diagram showing an example of a characteristic part on a two-dimensional code display screen according to the sixth embodiment; A diagram showing an example of diagnosis in the diagnostic system of Embodiment 6

Below, a diagnostic system, a control device, a diagnostic method, and a diagnostic program according to embodiments will be described in detail based on the drawings.

Embodiment 1.
FIG. 1 is a diagram showing a configuration example of a diagnostic system according to a first embodiment. The diagnostic system 6 of this embodiment includes a machine 1, a server 4, and a reception computer 5. The machine 1 of this embodiment displays a two-dimensional code indicating diagnostic information that is information used for at least one of diagnosing the state of the machine 1 and maintaining the machine 1. The user of the machine 1 photographs an area including the two-dimensional code using a mobile information terminal 3, which is an example of an information terminal, and the photographed image is transmitted from the mobile information terminal 3 to the server 4. The server 4 acquires diagnostic information from the two-dimensional code and outputs the acquired diagnostic information to the reception computer 5. The reception computer 5 performs diagnosis and maintenance using the diagnostic information, and presents the diagnostic results to the user. The server 4 and the reception computer 5 constitute a diagnostic device. In addition, in FIG. 1, the server 4 and the reception computer 5 are provided separately, but a diagnostic device in which these are integrated may be provided. Furthermore, the portable information terminal 3 may be included in the diagnostic system 6.

In this embodiment, because the machine 1 displays diagnostic information for diagnosing the state of the machine 1 as a two-dimensional code, even if the machine 1 is not provided with an external storage medium port and communication is restricted, the diagnostic information of the machine 1 can be transmitted to the server 4. As a result, the diagnostic system 6 of this embodiment can perform remote diagnosis and maintenance of the machine 1, eliminating the need for a specialized engineer to visit the facility where the equipment is installed and perform maintenance.

On the other hand, since there is a limit to the amount of information that can be converted with a two-dimensional code, the amount of information presented may be insufficient. For this reason, in this embodiment, machine 1 is also capable of dividing the diagnostic information and converting each divided piece of diagnostic information into a two-dimensional code. This allows machine 1 to increase the amount of diagnostic information that can be presented compared to when division is not performed. Note that if the diagnostic information to be presented can be expressed with a single two-dimensional code, the diagnostic information does not need to be divided. In other words, the number of divisions when dividing the diagnostic information may be 1.

Next, a configuration example of each device will be explained. As shown in FIG. 1, the machine 1 includes a control device 11, a drive device 16, and a machine signal processing device 17. The machine 1 is, for example, a machine tool that performs processing by numerical control, but is not limited thereto.

The drive device 16 drives a motor (not shown) of the machine 1 and the like. The mechanical signal processing device 17 exchanges mechanical signals with the mechanical peripheral equipment 2. The control device 11 controls the operation of the machine 1 and the machine peripheral devices 2 by controlling the drive device 16 and the machine signal processing device 17 . The machine peripheral device 2 is, for example, an operation panel for controlling the machine 1, a device that is standardly installed in the machine 1, or is connected to the machine 1 and is controlled by a machine signal from the control device 11, but is not limited to these. Not done. The machine signals acquired by the control device 11 include, for example, a signal indicating input content according to an operation using an operation panel, a signal from a sensor attached to the machine 1 to detect the state of the machine 1, and a machine peripheral device. This includes, but is not limited to, a signal indicating the state No. 2.

The control device 11 includes a screen display section 12, a two-dimensional code generation section 13, a transmission data conversion section 14, and a memory 15. Memory 15 stores output data. The output data includes diagnostic information used for at least one of diagnosis and maintenance of the machine 1. The output data includes, for example, information indicating the state of the control device 11, operation history information (log) in the drive device 16, information indicating the state of the drive device 16, and mechanical signals acquired by the mechanical signal processing device 17 from the machine peripheral device 2. etc., but are not limited to these. The memory 15 also stores system information of the machine 1 and the like. The system information includes, for example, the model name and identification information (serial number, etc.) of the machine 1 and the control device 11, information on the components of the device system (system specifications), status information on connected sensors and system components, etc. including but not limited to. Note that FIG. 1 is an example, and the diagnostic information in the machine 1 is not limited to control information of the drive device 16, mechanical signals acquired from the machine peripheral equipment 2, and the like.

The transmission data conversion unit 14 generates a plurality of pieces of divided data by dividing the output data, and adds data identification information, which is identification information of the output data, and division information indicating the order of the divided data, to each of the plurality of pieces of divided data. Add. Specifically, the transmission data converter 14 reads the output data stored in the memory 15 of the control device 11, divides the read output data, and sends the divided output data, which is the output data after the division, to the server 4. Convert the data to be sent in the format specified between the two. For example, the transmission data converter 14 adds a header and a footer, which will be described later, to the divided output data. The header includes, for example, a data name that is an example of data identification information. Further, the header may include information indicating the number of divisions, which is an example of division information, and a division number, which is an example of division information indicating the order of output data after division. Note that the transmission data conversion unit 14 divides the output data into division sizes that are predetermined data sizes, for example, but the lengths of the output data after each division do not have to be equal, and the division method is as follows. Not limited to examples. The division size is, for example, the maximum data size of output data contained in one two-dimensional code minus the data size of the header and footer. The transmission data conversion unit 14 determines the number of divisions based on, for example, the quotient obtained by dividing the data size of the output data by the division size. If the data size of the output data is divided by the division size and it is divisible, the quotient is the division number; if the data size of the output data is divided by the division size and it is not divisible, the quotient plus 1 is the division number. It becomes a number.

The two-dimensional code generation unit 13 generates a two-dimensional code by converting the transmission data received from the transmission data conversion unit 14 into a two-dimensional code, and outputs the two-dimensional code to the screen display unit 12.

The screen display unit 12 includes a device data output unit 121, which includes a two-dimensional code display unit 122. The device data output unit 121 generates a device data output screen, which is a screen that is displayed when output data of the machine 1 is output to the outside, and displays the generated device data output screen. The device data output screen will be described later. The two-dimensional code display unit 122 displays the two-dimensional code generated by the two-dimensional code generation unit 13 as an image. As a result, the output data stored in the memory 15 is displayed as a two-dimensional code. Note that, here, an example is described in which the output data includes diagnostic information for diagnosing the state of the machine 1, but the information that the machine 1 displays as a two-dimensional code is not limited to this example.

2 is a diagram showing an example of the device data output screen of this embodiment. In the example shown in FIG. 2, data A indicates output data, that is, the type of output data or the data name of the output data, and data B indicates the output destination. Note that here, the data name of the output data is the file name of the electronic file, but the data name is not limited to this example. In the example shown in FIG. 2, the data to be output is selected from each output data displayed as data A by the user's operation using the input means omitted in FIG. 1. Thereafter, the data selected by data A is output when the user presses the "Transfer A → B" part at the bottom of the device data output screen in FIG. 2 using the input means. Note that the screen display unit 12 may be realized, for example, using a display integrated with an input means such as a touch panel, and in this case, for example, the data selected by data A is output when the user taps the "Transfer A → B" part.

2, "SYSTEM.DAT", an electronic file that stores the system information of the control device 11, is selected as the output data, i.e., data A. For example, in a machine that can output to an external storage medium such as an SD memory card, the external storage medium can be specified as the transfer destination, data B, on this device data output screen, but the machine 1 of this embodiment cannot output to an external storage medium.

In this embodiment, when "Transfer A→B" is pressed by the user, a two-dimensional code indicating the selected output data, that is, a two-dimensional code into which the output data has been converted, is displayed. FIG. 3 is a diagram showing an example of a two-dimensional code display screen according to the present embodiment. In the example shown in FIG. 3, a QR (Quick Response) code (registered trademark) indicating output data is displayed as an example of a two-dimensional code. The user photographs an area including the displayed two-dimensional code using the mobile information terminal 3 and causes the mobile information terminal 3 to transmit data including the photographed image to the server 4 . Thereby, the portable information terminal 3 can transmit the output data of the machine 1 to the server 4.

Returning to the explanation of FIG. As shown in FIG. 1, the portable information terminal 3 includes a camera 31, a captured image memory 32, and a network communication section 33. The camera 31 photographs an image and stores photographic data indicating the photographed image obtained by photographing into the photographed image memory 32. The network communication unit 33 transmits the photographic data stored in the photographed image memory 32 to the server 4, for example, by wireless communication. Note that the communication line between the network communication unit 33 and the server 4 may be wired or wireless, or may be a combination of wired and wireless. Note that in FIG. 1, a dashed arrow pointing from the two-dimensional code display section 122 to the camera 31 is shown; It means being photographed.

The server 4 includes a captured image storage unit 41, an image analysis unit 42, a two-dimensional code decoding unit 43, an output data restoration unit 44, and a restored data storage unit 45. The server 4 receives captured image data, which is data of an image in which a displayed two-dimensional code is captured, from the mobile information terminal 3 via a communication unit not shown in FIG. 1. The received captured image data is stored in the captured image storage unit 41.

The image analysis unit 42 includes a two-dimensional code detection unit 421. The two-dimensional code detection unit 421 extracts a two-dimensional code from the captured data. In detail, the two-dimensional code detection unit 421 reads the captured data received from the mobile information terminal 3 from the captured image storage unit 41 on a case-by-case basis, extracts an image corresponding to the two-dimensional code from the captured image as a two-dimensional code using the read captured data, and outputs the extracted two-dimensional code to the two-dimensional code decoding unit 43. Note that a case is a unit by which a user transmits information to the response computer 5 for inquiries to the response computer 5, requests for diagnosis from the response computer 5, etc., and corresponds to the output data before the above-mentioned transmission data conversion unit 14 performs division. For example, in the example shown in FIG. 2, output data is selected in electronic file units as data A, so this electronic file corresponds to one case.

The two-dimensional code decoding unit 43 decodes the two-dimensional code extracted from the photographic data. Specifically, the two-dimensional code decoding section 43 decodes the two-dimensional code received from the image analysis section 42 and outputs decoding information, which is the decoding result, to the output data restoring section 44 . Thereby, transmission data converted into a two-dimensional code by the two-dimensional code generation unit 13 of the control device 11 of the machine 1 is obtained.

The output data restoration unit 44 restores output data from a plurality of pieces of decoded information using data identification information and division information included in the decoded information obtained by decoding. Specifically, the output data restoring unit 44 restores the output data using the decoding result decoded from the two-dimensional code, and stores the restored output data in the restored data storage unit 45. Note that when the transmission data includes a division number in the control device 11 of the machine 1, the transmission data is restored by connecting the divided output data in the order of the division number. Further, the division information is not limited to the division number, but may be information indicating time, and the output data restoring unit 44 restores each divided output data based on the information indicating the time corresponding to each divided output data. By connecting, the output data may be restored. The information indicating the time is, for example, the reception time of the photographic data (reception date and time) or the photographing time of the photographic data (photographing date and time). For example, information indicating the time is added to the photographic data, and the output data restoring unit 44 acquires the information indicating the time from the image analysis unit 42 via the two-dimensional code decoding unit 43. Furthermore, when a single screen page includes a plurality of two-dimensional codes, the output data restoration unit 44 determines the division order based on the arrangement positions of the plurality of two-dimensional codes in addition to the information indicating the time. You may. For example, the output data restoration unit 44 acquires information regarding the arrangement position of the two-dimensional code from the image analysis unit 42 via the two-dimensional code decoding unit 43, and the two-dimensional code on the leftmost side has the smallest division number, and the two-dimensional code on the left side has the lowest division number, and It may be determined that the division number increases as the number increases.

The reception computer 5 reads the output data from the restored data storage section 45 of the server 4, and reads information indicating the state of the control device 11, operation history information (log) in the drive device 16, and the state of the drive device 16, which are included in the output data. The state of the machine 1 is diagnosed based on the information indicating the machine signal, the machine signal acquired from the machine peripheral device 2 by the machine signal processing device 17, and the like.

Next, the operation of this embodiment will be explained. FIG. 4 is a diagram showing an example of data generated by the transmission data converter 14 and the two-dimensional code generator 13 of the control device 11 of this embodiment. In the example shown in FIG. 4, the processing performed by the transmission data converter 14 is the addition of a header and footer, and the number of divisions is one. Furthermore, as illustrated in FIG. 2, FIG. 4 shows an example in which "SYSTEM.DAT" is selected by the user as the output data.

As shown in FIG. 4, the transmission data conversion unit 14 reads the electronic file "SYSTEM.DAT" from the memory 15 as output data, and adds a header (transmission header) and a footer (transmission footer) to the read output data. and outputs it to the two-dimensional code generation section 13. In the example shown in FIG. 4, the footer includes the file name "SYSTEM.DAT", which is identification information of the output data, and a numerical value indicating the page number. In the example shown in FIG. 4, the header and footer are tags indicating the document structure, and the transmission data conversion unit 14 reads out a portion indicating the start position of "SYSTEM.DAT", which is the unit of output data read from the memory 15. as a header <SYSTEM. DAT> and add </SYSTEM.DAT as a footer to the part indicating the end of "SYSTEM.DAT". DAT> is added. Further, in the example shown in FIG. 4, the number of divisions is indicated by "PAGES", and "PAGES=1" indicates that the number of divisions is 1, that is, there is no division. In addition, in the example shown in FIG. 4, the division number indicating the divided output data after division is indicated by a page number, <P1> indicates the start position of the first page, and </P1> indicates the end position of the first page. <BODY> indicates the start position of the output data, that is, the end position of the header, and </BODY> indicates the end position of the output data, that is, the start position of the footer. Note that the format of the transmission data shown in FIG. 4 is an example, and the specific contents of the header and footer are not limited to this example. Further, as described above, the transmission data converter 14 may perform processing on the output data other than adding a header and a footer.

The two-dimensional code generation unit 13 converts the transmission data generated by the transmission data conversion unit 14 into a two-dimensional code, as shown in Fig. 4. Note that Fig. 4 shows a state in which the two-dimensional code is displayed as an image, but the two-dimensional code generation unit 13 generates information indicative of the two-dimensional code and outputs it to the two-dimensional code display unit 122, and the two-dimensional code display unit 122 displays the two-dimensional code as an image, thereby displaying the two-dimensional code exemplified in Fig. 4.

The user photographs the two-dimensional code displayed on the control device 11 using the mobile information terminal 3. For example, when a problem occurs in the machine 1 or there is something that concerns the operation of the machine 1, the user makes an inquiry to the reception computer 5 about the machine 1 or requests a diagnosis. At this time, the user first displays the device data output screen shown in FIG. 2, and selects output data while the device data output screen is displayed. Which output data to select may be determined depending on the content of the diagnosis, or may be instructed by the reception computer 5. When the user selects output data and presses "Transfer A→B", a two-dimensional code is displayed by performing the process illustrated in FIG. 4.

Figure 5 is a diagram showing an example of a captured image taken by the mobile information terminal 3 of this embodiment. When an image is captured using the camera 31 of the mobile information terminal 3, depending on the state and positional relationship between the camera 31 and the display screen of the machine 1 being photographed at the time of shooting, at least one of tilting and deformation may occur in the two-dimensional code in the captured image and in the area displayed around the two-dimensional code. In the example shown in Figure 5, the two-dimensional code in the captured image is tilted.

The mobile information terminal 3 transmits the captured image to the server 4. At this time, supplementary information may be transmitted to the server 4 together with the photographic data indicating the photographed image. The supplementary information is input into the mobile information terminal 3 by the user operating an input means (not shown), for example. The supplementary information includes, for example, the subject of each inquiry or diagnosis request. The supplementary information may further include a text memo of the content of the inquiry, a document for supplementary explanation, an image, an audio file, and the like. Further, the above-mentioned image of the two-dimensional code may include not only the two-dimensional code but also an image of information indicating supplementary explanation. In this case, the captured image transmitted from the mobile information terminal 3 includes both the two-dimensional code and information indicating supplementary explanation. The server 4 stores the photographed data received from the mobile information terminal 3 in the photographed image storage section 41. When the supplementary information is transmitted together with the photographed data, the server 4 stores the supplementary information in the photographed image storage unit 41 in association with the photographed data.

FIG. 6 is a diagram showing an example of a two-dimensional code according to this embodiment. In FIG. 6, a QR code is shown as an example of a two-dimensional code. As shown in FIG. 6, in the QR code, square shapes are arranged at three of the four corners, and the server 4 converts these square-shaped images into the QR code from among the captured images indicated by the captured data. By detecting three points for each QR code, the position, size, direction, and tilt of the QR code included in the image can be detected.

FIG. 7 is a flowchart showing an example of the operation of the server 4 of this embodiment. As shown in FIG. 7, the server 4 extracts the two-dimensional code within the image from the feature amount of the two-dimensional code (step S1). Specifically, the two-dimensional code detection unit 421 of the image analysis unit 42 reads the photographic data from the photographed image storage unit 41, extracts the feature quantity of the two-dimensional code from the photographic image indicated by the read photographic data, and extracts the feature quantity. The area corresponding to the two-dimensional code in the photographed image is extracted using the method. The feature amount is, for example, the three rectangular shapes shown in FIG. 6.

Next, the server 4 cuts out the two-dimensional code image included in the image (step S2). Specifically, the two-dimensional code detection unit 421 of the image analysis unit 42 cuts out the image of the area corresponding to the two-dimensional code extracted in step S1 as a two-dimensional code image, and decodes the two-dimensional code image by two-dimensional code decoding. It outputs to section 43. The two-dimensional code detection unit 421 sequentially performs steps S1 and S2 on each photographic data stored in the photographic image storage unit 41.

Next, the server 4 decodes the two-dimensional code of the two-dimensional code image (step S3). Specifically, the two-dimensional code decoding unit 43 converts the two-dimensional code of the two-dimensional code image received from the two-dimensional code detecting unit 421 into transmission data that is data before conversion to a two-dimensional code, and converts the two-dimensional code of the two-dimensional code image received from the two-dimensional code detection unit 421 into transmission data. is output to the output data restoration section 44.

Next, the server 4 separates the data obtained by the decoding into output data identification information (header and footer) and output data (output data after division) (step S4). In detail, the output data restoration unit 44 separates the transmission data received from the two-dimensional code detection unit 421 into the header and footer, which are output data identification information, and the output data after division. The output data identification information is information that includes information for identifying the output data, such as the number of divisions and the data name of the output data (e.g., file name). Here, the output data identification information is the header and footer, but the method of adding the output data identification information to the output data after division is not limited to this example. The right side of FIG. 7 shows an example in which the transmission data exemplified in FIG. 4 is displayed as a two-dimensional code, and the photographed data obtained by photographing the two-dimensional code is transmitted from the mobile information terminal 3 to the server 4. In this example, the number of divisions is 1, so the output data after division and the output data are equal.

Next, the server 4 restores the output data before division based on the data name and the number of divisions (step S5). Specifically, if the number of divisions included in the output data identification information is 1, the output data restoring unit 44 uses the divided output data separated in step S4 as output data. If the number of divisions included in the output data identification information is two or more, the output data restoring unit 44 generates output data by combining divided output data having the same data name included in the output data identification information. At this time, if the output data identification information includes a division number, the output data restoring unit 44 combines the divided output data in the order of the division numbers. The output data restoring unit 44 may combine the divided output data based on information indicating time as described above.

Next, the server 4 saves the output data (step S6). In detail, the output data restoration unit 44 stores the output data restored in step S5 in the restored data storage unit 45. The process shown in FIG. 7 is performed, for example, on a case-by-case basis, allowing the server 4 to restore the output data stored in the memory 15 of the control device 11 of the machine 1. In addition, the supplementary information is read from the captured image storage unit 41 by a control unit (not shown) that controls the server 4, and is stored in the restored data storage unit 45 in association with the restored data. This allows the response computer 5 to read the supplementary information and the corresponding output data from the restored data storage unit 45, and to remotely diagnose and maintain the machine 1 using the read information.

Next, the hardware configuration of the control device 11 in the machine 1 of this embodiment will be explained. The control device 11 of this embodiment is realized by, for example, a computer system. That is, the computer system functions as the control device 11 by executing a program, which is a computer program in which processing in the control device 11 is described, on the computer system. FIG. 8 is a diagram showing a configuration example of a computer system that implements the control device 11 of this embodiment. As shown in FIG. 8, this computer system includes a processor 101, a memory 102, a display 103, an input section 104, and a communication section 105, which are connected via, for example, a system bus.

In FIG. 8, the processor 101 is, for example, a processor such as a CPU (Central Processing Unit) or an MPU (Micro Processor Unit), and executes a program in which processing in the control device 11 of this embodiment is described. Note that a part of the processor 101 may be realized by a processing circuit that is dedicated hardware such as an FPGA (Field-Programmable Gate Array). The memory 102 includes various memories such as RAM (Random Access Memory) and ROM (Read Only Memory), and storage devices such as a hard disk, and stores programs to be executed by the processor 101, necessary data obtained in the process of processing, etc. Memorize. The memory 102 is also used as a temporary storage area for programs.

The input unit 104 is composed of, for example, a keyboard, a mouse, etc., and is used by the user of the computer system to input various information. The display unit 103 is composed of a display, an LCD (liquid crystal display panel), etc., and displays various screens to the user of the computer system. Note that the input unit 104 and the display unit 103 may be integrated and realized by a touch panel. The communication unit 105 is a receiver and transmitter that performs communication processing. Note that FIG. 8 is an example, and the configuration of the computer system is not limited to the example of FIG. 8.

Here, an example of the operation of the computer system until the program of this embodiment becomes executable will be described. In the computer system having the above-described configuration, a computer program is installed in the memory 102 from, for example, a recording medium. Then, when the program is executed, the program read from the memory 102 is stored in the main storage area of the memory 102. In this state, processor 101 executes processing as control device 11 of this embodiment according to the program stored in memory 102.

In the above description, a program describing the processing in the control device 11 is provided as a recording medium, but this is not limited to this, and depending on the configuration of the computer system, the capacity of the program to be provided, etc., for example, A program provided via a transmission medium such as the Internet via the communication unit 105 may be used.

The diagnostic program of this embodiment causes, for example, the control device 11 to generate multiple split data by dividing output data used for diagnosis, generate transmission data in which data identification information, which is identification information of the output data, and split information indicating the order of the split data are added to each of the multiple split data, convert the transmission data into a two-dimensional code, and execute a process of displaying the two-dimensional code. Also, the diagnostic program of this embodiment causes, for example, the server 4 to execute a process of receiving, from the mobile information terminal that captured the image, image data in which the displayed two-dimensional code is captured, extracting the two-dimensional code from the captured data, decrypting the extracted two-dimensional code, and restoring the output data from the multiple decrypted information using the data identification information and split information included in the decrypted information obtained by decoding.

The two-dimensional code generation unit 13 and the transmission data conversion unit 14 shown in Figure 1 are realized by the processor 101 shown in Figure 8 executing a computer program stored in the memory 102 shown in Figure 8. The memory 102 shown in Figure 8 is also used to realize the two-dimensional code generation unit 13 and the transmission data conversion unit 14 shown in Figure 1. The screen display unit 12 shown in Figure 1 is realized by the display 103 and the processor 101 shown in Figure 8. The memory 15 shown in Figure 1 is part of the memory 102 shown in Figure 8.

The mobile information terminal 3 is realized by adding a camera 31, which is an image capturing device, to a computer system having a configuration shown in FIG. 8, for example. The server 4 and the response computer 5 are also realized by a computer system having a configuration shown in FIG. 8, for example. The image analysis unit 42, the two-dimensional code decoding unit 43, and the output data restoration unit 44 shown in FIG. 1 are realized by the computer program stored in the memory 102 shown in FIG. 8 being executed by the processor 101 shown in FIG. 8. The image analysis unit 42, the two-dimensional code decoding unit 43, and the output data restoration unit 44 shown in FIG. 1 are also realized by the memory 102 shown in FIG. 8. The captured image storage unit 41 and the restored data storage unit 45 shown in FIG. 1 are part of the memory 102 shown in FIG. 8. The server 4 and the response computer 5 may also be realized by multiple computer systems. For example, the server 4 and the response computer 5 may each be realized by a cloud computer system.

As described above, in this embodiment, the machine 1 displays the output data inside the machine 1 with one or more two-dimensional codes, the mobile information terminal 3 photographs an area of the machine 1 including the two-dimensional code and transmits the photographed data to the server 4, and the server 4 restores the output data from the photographed data. This makes it possible to easily retrieve the output data of the machine 1 even if the machine 1 does not have an external storage medium port and the network connection of the machine 1 is limited. This makes it possible to realize remote diagnosis and remote maintenance of the machine 1 while preventing information leakage. In addition, when the amount of information in the output data is large, the machine 1 divides the output data, generates a two-dimensional code for each divided output data, and the server 4 restores the output data from the two-dimensional code, so that the amount of information in the diagnostic information that can be presented can be increased.

Embodiment 2.
Next, a diagnostic system 6 according to embodiment 2 will be described. The configuration of the diagnostic system 6 according to this embodiment and the configuration of each device constituting the diagnostic system 6 are the same as those of embodiment 1. Below, differences from embodiment 1 will be mainly described, and descriptions overlapping with embodiment 1 will be omitted.

FIG. 9 is a diagram showing an example of the device data output screen according to this embodiment. On the device data output screen shown in FIG. 9, a screen for selecting output data is displayed, similar to the device data output screen shown in FIG. 2, but "LOGDATA.DAT" is selected as the output target. There is. "LOGDATA.DAT" stores the log in the machine 1, and "LOGDATA.DAT" has a larger amount of information than "SYSTEM.DAT" exemplified in the explanation of the operation in the first embodiment.

When the amount of information in the output data is large, i.e., the data size is large, the size of the two-dimensional code converted from the data also becomes large. Since the size of the two-dimensional code that can be displayed is restricted by the screen resolution and displayable area of the two-dimensional code display unit 122, the output data may not be displayed as a single two-dimensional code. For this reason, division may be performed as described in the first embodiment, but compression may also be performed to further reduce the data size. In addition, from the viewpoint of preventing information leakage, at least one of compression processing and encryption may be performed on the output data. In this embodiment, an example will be described in which at least one of compression processing and encryption is performed on the output data as a conversion process in the transmission data conversion unit 14.

FIG. 10 is a diagram showing an example of data generated by the transmission data converter 14 and the two-dimensional code generator 13 of the control device 11 of the present embodiment when the output data is subjected to compression processing. FIG. 10 shows an example in which "LOGDATA.DAT" is selected on the device data output screen as shown in FIG. 9. The transmission data converter 14 reads the electronic file "LOGDATA.DAT" from the memory 15 as output data, and compresses the read output data.

The transmission data conversion unit 14 divides the compressed output data, which is the compressed output data, in the same manner as in the first embodiment, and outputs the divided data (divided output data) to the two-dimensional code generation unit 13. The divided output data shown in FIG. 10 is converted output data that has been subjected to compression processing, which is an example of conversion processing, in the transmission data conversion unit 14. Similarly to the first embodiment, the transmission data conversion unit 14 generates transmission data by adding a header and a footer to each divided output data. In the example shown in FIG. 10, "ZIP", which is information indicating the processing performed by the transmission data converter 14, is added to the header after the data name. In the example shown in FIG. 10, the number of divisions is 3, so three pieces of transmission data, transmission data #1 to transmission data #3, are generated as transmission data corresponding to "LOGDATA.DAT".

The two-dimensional code generation unit 13 converts each of transmission data #1 to transmission data #3 into two-dimensional codes (divided two-dimensional codes #1 to #3). Although FIG. 10 shows a state where each two-dimensional code is displayed as an image, the two-dimensional code generation unit 13 generates information indicating the two-dimensional code and outputs it to the two-dimensional code display unit 122, and The two-dimensional code illustrated in FIG. 10 is displayed by the dimensional code display unit 122 displaying the two-dimensional code as an image.

Figures 11 and 12 are diagrams showing an example of a two-dimensional code output screen according to the present embodiment. In the example shown in Figures 11 and 12, split two-dimensional codes #1 and #2 are displayed on the same screen page, which is one screen, and split two-dimensional code #3 is displayed on a different screen page. Figures 11 and 12 show an example in which two two-dimensional codes are displayed on one screen page, but the number of two-dimensional codes displayed on one screen page is not limited to two, and may be one or more. The displayed screen page is switched, for example, by pressing "page switch" at the bottom of the two-dimensional code output screen.

The displayed two-dimensional code is photographed by the mobile information terminal 3 as in the first embodiment, and the mobile information terminal 3 transmits photographic data indicating the photographed image to the server 4. Similar to Embodiment 1, supplementary information may be transmitted to the server 4 together with the imaging data.

FIG. 13 is a flowchart showing an example of the operation of the server 4 of this embodiment. Steps S1 to S4 are the same as in the first embodiment. Note that when two two-dimensional codes are included in one photographed image as shown in FIG. Output to.

After step S4, in step S5a, the output data restoration unit 44 combines the divided output data according to the data name and the number of divisions, and performs reverse conversion (decompression) according to the conversion method to restore the output data. In detail, the output data restoration unit 44 combines divided output data with the same data name, as in the first embodiment, and restores the output data by performing reverse conversion of the conversion performed in the control device 11 on the combined data. For example, as described above, when a compression process is performed, a decompression process is performed as a reverse conversion. When encryption is performed in the control device 11, a conversion from ciphertext to plaintext is performed by decryption as a reverse conversion. Step S6 after step S5a is the same as in the first embodiment. Also, when both encryption and compression are performed in the control device 11, reverse conversion of both is performed. The operation of this embodiment other than that described above is the same as in the first embodiment.

As described above, in this embodiment, output data is compressed and/or encrypted, and is displayed in one or more two-dimensional codes as in the first embodiment. The portable information terminal 3 photographs an area including the two-dimensional code, transmits the photographed data to the server 4, and the server 4 restores output data from the photographed data. As a result, the same effects as in the first embodiment can be obtained, and the data size that can be expressed by one two-dimensional code can be increased through compression, and information leakage can be prevented. Furthermore, by displaying a plurality of two-dimensional codes on one screen page, it is possible to increase the data size of output data that can be transmitted with one photographic data.

Embodiment 3.
FIG. 14 is a diagram showing a configuration example of a diagnostic system according to the third embodiment. As shown in FIG. 14, a diagnostic system 6a according to the present embodiment is similar to that according to the first embodiment, except that it includes a machine 1a instead of the machine 1. The machine 1a is similar to the machine 1 according to the first embodiment, except that it includes a control device 11a instead of the control device 11. The control device 11a is similar to the control device 11 according to the first embodiment, except that it includes a transmission data conversion unit 14a instead of the transmission data conversion unit 14. Components having the same functions as those according to the first embodiment are given the same reference numerals as those according to the first embodiment, and duplicated explanations are omitted. Below, differences from the first embodiment are mainly described, and duplicated explanations with the first embodiment are omitted.

As shown in FIG. 14, the transmission data conversion unit 14a includes a division size adjustment unit 141. The division size adjustment unit 141 determines the data size of the division data corresponding to each of the multiple two-dimensional codes displayed simultaneously based on the size of the area in which the two-dimensional code can be displayed and the data size of the output data. In detail, the division size adjustment unit 141 adjusts the size of the two-dimensional code displayed on one screen and the number of two-dimensional codes displayed on one screen according to the size of the area in which the two-dimensional code can be displayed. In the case of a two-dimensional code, the amount of information that can be expressed by the two-dimensional code, i.e., that can be converted into the two-dimensional code, increases depending on the number of cells used in the two-dimensional code. For this reason, for example, if the size of each cell of the two-dimensional code is determined in advance in pixels, the data size that can be converted into the two-dimensional code can be associated with the size of the two-dimensional code.

Figure 15 is a diagram showing an example of the size of a two-dimensional code output screen displayed by the control device 11a of this embodiment. In the example shown in Figure 15, a two-dimensional code can be displayed within an area 201, and with the resolution of the display 103 that realizes the machine 1a, the number of points that can be displayed within the area 201 is 380 points (points) vertically and 640 points horizontally.

16 and 17 are diagrams showing an example of a two-dimensional code displayed by the control device 11 of the first embodiment. In the examples shown in Figs. 16 and 17, a two-dimensional code corresponding to output data with a division number of 2 is generated. In the first embodiment without the division size adjustment unit 141, for example, the output data is divided for each division size corresponding to the size of the two-dimensional code that can be displayed in the area 201 while ensuring a certain amount of margin in the top, bottom, left, and right directions. Also, in the first embodiment, if the data size of the output data is not divisible by the division size, the final output data after division is less than the division size. Therefore, for example, as shown in Figs. 16 and 17, a two-dimensional code of 356pt x 356pt is displayed on the first page of the screen page, and a code of 180pt x 180pt is displayed on the second page of the screen page. In this example, two two-dimensional codes are displayed across two screen pages.

Figure 18 is a diagram showing an example of a two-dimensional code displayed by the control device 11a of this embodiment. The example shown in Figure 18 shows an example in which output data of the same size as the output data shown in Figures 16 and 17 is divided into two two-dimensional codes. Therefore, in the example shown in Figure 18, two two-dimensional codes can be displayed on one screen page, and the mobile information terminal 3 can photograph two two-dimensional codes at once. Thus, in this embodiment, the division size adjustment unit 141 determines the size of the two-dimensional code so that the number of screen pages displaying the two-dimensional code is reduced, and the division size is determined according to the determined two-dimensional code.

The transmission data converter 14a determines a division size based on the data size of the output data read from the memory 15 so that the number of screen pages on which two-dimensional codes are displayed is reduced, and uses the determined division size to convert the embodiment. Similarly to 1, output data is divided, and transmission data is generated by adding a header and a footer to the divided output data. The operations of this embodiment other than those described above are the same as those of the first embodiment. Further, the hardware configuration of the control device 11a of this embodiment is similar to the hardware configuration of the control device 11 of the first embodiment.

Note that, although an example in which the division size adjustment unit 141 is added to the transmission data conversion unit 14 of the first embodiment has been described here, the transmission data conversion unit 14 of the second embodiment may similarly include the division size adjustment unit 141. That is, the transmission data conversion unit 14 may perform at least one of compression and encryption processing on the output data, and determine the division size based on the data size of the processed data so that the number of screen pages displaying the two-dimensional code is reduced.

As explained above, in this embodiment, the division size is determined so that the number of screen pages on which two-dimensional codes are displayed is reduced. As a result, the same effects as in the first embodiment can be obtained, and the number of screen pages on which two-dimensional codes are displayed can be reduced, and the number of times the mobile information terminal 3 performs photography can be reduced.

Embodiment 4.
FIG. 19 is a diagram showing a configuration example of a diagnostic system according to the fourth embodiment. As shown in FIG. 19, the diagnostic system 6b according to the present embodiment is the same as the first embodiment except that it includes a machine 1b instead of the machine 1. The machine 1b is the same as the machine 1 according to the first embodiment except that it includes a control device 11b instead of the control device 11. The control device 11b is the same as the screen display unit 12 according to the first embodiment except that it includes a screen display unit 12a instead of the screen display unit 12. The screen display unit 12a is the same as the screen display unit 12 according to the first embodiment except that it includes a device data output unit 121a instead of the device data output unit 121. The device data output unit 121a is the same as the device data output unit 121 according to the first embodiment except that it includes a two-dimensional code display unit 122a instead of the two-dimensional code display unit 122. The components having the same functions as those according to the first embodiment are given the same reference numerals as those according to the first embodiment, and the overlapping description will be omitted. Hereinafter, the differences from the first embodiment will be mainly described, and the overlapping description with the first embodiment will be omitted.

In this embodiment, the two-dimensional code display unit 122a includes an automatic page switching unit 123. The automatic page switching unit 123 automatically switches the screen page on which the two-dimensional code is displayed.

20 is a diagram showing an example of the display switching of screen pages by the automatic page switching unit 123 of the present embodiment and a time chart thereof. As shown in FIG. 20, when a two-dimensional code corresponding to one output data is displayed across multiple screen pages, the automatic page switching unit 123 performs automatic switching of screen pages, for example, by pressing "automatic switching" at the bottom of the two-dimensional code display screen. As shown in FIG. 20, the automatic page switching unit 123 sequentially displays screen pages from page #1 to the last page at a switching interval that is a fixed time. In addition, a repeated display may be performed in which the screen pages from page #1 to the last page are repeatedly displayed. When the repeated display is performed, after the display of pages #1 to the last page, the display of pages #1 to the last page is repeated again after a time of a determined repeated display pause interval until the stop of the repeated display is instructed or for a specified number of times. The repeated display pause interval may be set by the user. The specified number of times may be determined in advance or may be set by the user.

In this embodiment, the mobile information terminal 3 shoots a video or still image so that the screen of all the screen pages from page #1 to the last page displayed by automatic switching as described above is captured. The two-dimensional code display screen is photographed by continuous shooting. Photographic data representing data captured by continuous shooting of moving images or still images includes a plurality of captured images corresponding to different times. The mobile information terminal 3 transmits the photographic data to the server 4 similarly to the first embodiment.

FIG. 21 is a diagram illustrating an example of a method for extracting a two-dimensional code image when photographed as a moving image according to the present embodiment. The image analysis unit 42 of the server 4 reads photographed data, which is moving image data, from the photographed image storage unit 41, and cuts out images (image snaps) for all image pages from the moving image data at predetermined image cutting intervals. The image cutting interval is determined, for example, as switching interval/N (N is a natural number). Note that when N is 1, it is preferable that N is 2 or more because if the timing of cutting out an image from the video data matches the timing of switching pages on the two-dimensional code display screen, the image may not be cut out correctly. Note that the present invention is not limited to this, and it is sufficient if the image cutting interval < (switching interval - time required to update the image). The time required to update an image is the time required for the control device 11 to update an image when switching images to be displayed.

The two-dimensional code detection unit 421 of the image analysis unit 42 extracts a two-dimensional code image from each extracted image in the same manner as in embodiment 1, and sequentially outputs the extracted two-dimensional code images to the two-dimensional code decoding unit 43.

Note that the two-dimensional code detection unit 421 compares the two-dimensional codes of each cut-out image, and if it is determined that images with the same two-dimensional code are consecutive, the two-dimensional code detection unit 421 extracts one from the same two-dimensional code images. One may be selected and output to the two-dimensional code decoding section 43. Furthermore, if screen pages are displayed in the screen page display areas 202 to 204 on the two-dimensional code output screen, similar to the examples shown in FIGS. 11 and 12, the image analysis unit 42 Duplication may be determined based on 202 to 204. For example, the image analysis unit 42 detects the screen page display areas 202 to 204 from each cut-out image, and uses image recognition processing to detect numbers indicating the screen pages within the screen page display areas 202 to 204. If there are consecutive images with the same number, select one of the consecutive images, cut out the two-dimensional code image from the unselected images, and extract the two-dimensional code image from the unselected images. You may choose not to cut out the . Alternatively, when the output data restoration unit 44 at the subsequent stage obtains a plurality of transmission data with duplicate page numbers, which are division numbers included in the output identification information in the decoded transmission data, the output data restoration unit 44 selects one of the plurality of transmission data. The output data may be restored using one piece of transmission data.

FIG. 22 is a diagram illustrating an example of a method for extracting a two-dimensional code image when still images are continuously captured in this embodiment. The image analysis unit 42 of the server 4 reads the photographic data obtained by continuous shooting from the photographed image storage unit 41, and cuts out each still image from the photographic data. In addition, when shooting by continuous shooting, if the number of still images taken by continuous shooting per second is M (M is a natural number), the continuous shooting interval, which is the cycle of continuous shooting, is 1/M seconds. It is. If the switching interval is too long compared to the continuous shooting interval, the same screen page will be shot many times. Therefore, by setting the switching interval as short as, for example, less than one second, it is possible to shorten the photographing time required to photograph a full-screen page and to suppress the data size of the photographed data. For example, the cycle of continuous shooting can be set to a natural number fraction of the switching interval. When shooting is performed by continuous shooting, each of a plurality of still images is generated as an electronic file, so the shooting data transmitted from the mobile information terminal 3 becomes data including a plurality of image data.

The two-dimensional code detection unit 421 of the image analysis unit 42 cuts out two-dimensional code images from the multiple images indicated by the multiple image data included in the shooting data in the same manner as in the first embodiment, and sequentially outputs the cut out two-dimensional code images to the two-dimensional code decoding unit 43. As in the case of video data, the two-dimensional code detection unit 421 compares the two-dimensional codes of each cut-out image, and when it determines that images of the same two-dimensional code are consecutive, it may select one of the same two-dimensional code images and output it to the two-dimensional code decoding unit 43. Also, as in the case of video data, it may determine duplication based on the screen page display areas 202 to 204 and select an image, or the output data restoration unit 44 at the subsequent stage may restore the output data using one transmission data selected from the multiple transmission data using the page number, which is the division number included in the output identification information.

As described above, in the present embodiment, the two-dimensional code screen on which the control device 11b displays the two-dimensional code is displayed on the two-dimensional code screen for a certain period of time when the two-dimensional code corresponding to one output data is displayed over a plurality of screen pages. Screen pages are automatically switched at certain switching intervals. In addition, the photographic data photographed by the mobile information terminal 3 may be data of a video photographed to include a plurality of screen pages, or a plurality of still images photographed continuously at a cycle that is a natural number fraction of the switching interval. This is the data. When the photographic data is video data, the server 4 uses the switching interval to extract images corresponding to a plurality of screen pages from the photographic data, and extracts a two-dimensional code from the extracted images. In addition, if the shooting data is data showing a plurality of still images taken by continuous shooting, the server 4 extracts images corresponding to the plurality of screen pages from the shooting data using the continuous shooting interval, and extracts images corresponding to the plurality of screen pages from the shooting data. Extract the two-dimensional code from.

The operations of this embodiment other than those described above are the same as those of the first embodiment. Further, the hardware configuration of the control device 11b of this embodiment is similar to the hardware configuration of the control device 11 of the first embodiment.

Note that although an example in which the automatic page switching section 123 is added to the two-dimensional code display section 122 of the first embodiment has been described here, the two-dimensional code display section 122 of the second or third embodiment is automatically added to the two-dimensional code display section 122 of the first embodiment. The page switching unit 123 may be provided so that the server 4 performs the operations of this embodiment.

As described above, in this embodiment, the automatic page switching unit 123 automatically switches the screen page. This eliminates the need for the user to manually switch between screen pages, and only requires the user to shoot a video or continuous shot using the mobile information terminal 3, making it easy to use when a two-dimensional code is displayed across multiple screen pages. Moreover, it is possible to efficiently acquire photographic data.

Embodiment 5.
Next, a diagnostic system 6 according to a fifth embodiment will be described. The configuration of the diagnostic system 6 according to this embodiment and the configuration of each device constituting the diagnostic system 6 are the same as those of the first embodiment. The following description will focus on the differences from the first embodiment, and will omit descriptions that overlap with the first embodiment. In this embodiment, an example will be described in which a plurality of output data are converted into a two-dimensional code.

FIG. 23 is a diagram showing an example of the device data output screen according to this embodiment. On the device data output screen shown in FIG. 23, a screen for selecting output data is displayed, similar to the device data output screen shown in FIG. 2, but the output targets are "TOOLDATA.DAT", "OFFSET. DAT" and "PARAMET.DAT" are selected.

FIG. 24 is a diagram showing an example of data generated by the transmission data converter 14 and the two-dimensional code generator 13 of the control device 11 of this embodiment. In the example shown in FIG. 24, "TOOLDATA.DAT", "OFFSET.DAT", and "PARAMET.DAT" are selected by the user as output data as shown in FIG. 23.

As shown in FIG. 24, for example, when "TOOLDATA.DAT", "OFFSET.DAT", and "PARAMET.DAT" are selected as output data, the transmission data conversion unit 14 divides each output data and generates transmission data A to C by adding output data identification information including the data name of the output data to the divided output data. As described in the first embodiment, the number of divisions may be 1. When the data size of the output data is large, the output data is divided. In the example shown in FIG. 24, the number of divisions of "TOOLDATA.DAT" is 2, the number of divisions of "OFFSET.DAT" is 1, and the number of divisions of "PARAMET.DAT" is 2. Therefore, there are two pieces of transmission data A corresponding to "TOOLDATA.DAT", which is output data A, one piece of transmission data B corresponding to "OFFSET.DAT", which is output data B, and two pieces of transmission data C corresponding to "PARAMET.DAT", which is output data C.

Furthermore, as described in the second embodiment, the output data may be subjected to conversion processing that is at least one of compression and encryption, and in the example shown in FIG. 24, the output data is compressed by ZIP. has been done. In the example shown in FIG. 24, as in the second embodiment, information indicating the data name, division number, division number, and conversion process of the output data is added as a header. Note that FIG. 24 is an example, and the conversion processing performed on the output data, the number of divisions, etc. are not limited to the example shown in FIG. 24. Further, the output data does not need to be subjected to conversion processing.

The two-dimensional code generation unit 13 inputs each piece of transmission data generated by the transmission data conversion unit 14 and generates a corresponding two-dimensional code. In the example shown in Fig. 24, two two-dimensional codes A corresponding to output data A, one two-dimensional code B corresponding to output data B, and two two-dimensional codes C corresponding to output data C are generated.

For example, suppose two 2D codes A are displayed on one screen page, 2D code B is displayed on another 1 screen page, and two 2D codes C are displayed on yet another 1 screen page. The information terminal 3 photographs each screen page. As a result, the mobile information terminal 3 acquires three pieces of photographic data corresponding to each screen page, and transmits the three pieces of photographic data to the server 4.

FIG. 25 is a flowchart showing an example of the operation of the server 4 of this embodiment. Steps S1 to S4 and S6 shown in FIG. 25 are the same as in the first embodiment. In step S5b, the output data restoring unit 44 restores the output data as in the first embodiment, but in this embodiment, the output data is divided into division numbers for each output data, that is, for each data name in the header. Combine them in the order they were split based on. As a result, the output data A to C as shown in FIG. 25 can be restored from the photographed data of the two-dimensional codes A to C shown in FIG. 24. Note that in the example shown in FIG. 24, since the data is compressed by ZIP as described in the second embodiment, the output data restoration unit 44 performs decompression processing on the combined output data.

The operations of this embodiment other than those described above are the same as those of the first embodiment or the second embodiment. Further, the hardware configuration of the control device 11b of this embodiment is similar to the hardware configuration of the control device 11 of the first embodiment.

Although the diagnosis system 6 of Embodiment 1 or 2 is described here as an example, the diagnosis system 6a of Embodiment 3 and the diagnosis system 6b of Embodiment 4 also have a plurality of output data. If selected, similar processing can be performed.

In addition, in the examples shown in Figures 24 and 25, all of the output data A to C are compressed, but the conversion process to be applied may be determined for each output data. For example, output data A and C may be compressed, and output data B may not be subjected to conversion process. The contents of the conversion process may be determined for each output data, i.e., for each type of output data, or may be determined according to the data size of the output data.

As described above, even when multiple types of output data are selected, remote diagnosis and remote maintenance of the machine 1 can be realized without using an external storage medium or the network connection function of the machine 1. Furthermore, when the amount of information in the output data is large, the machine 1 divides the output data, generates a two-dimensional code for each divided output data, and the server 4 restores the output data from the two-dimensional code. The amount of diagnostic information that can be presented can be increased.

Embodiment 6.
FIG. 26 is a diagram illustrating a configuration example of a diagnostic system according to the sixth embodiment. The diagnostic system 6c of this embodiment includes a machine 1c, a web server 7 which is an example of the server 4 described in the first embodiment, and a reception computer 5. Note that the portable information terminal 3a may be included in the diagnostic system 6c. The web server 7 has the function of the server 4 described in the first embodiment. Components having the same functions as those in Embodiment 1 are given the same reference numerals as in Embodiment 1, and redundant explanation will be omitted. Hereinafter, differences from Embodiment 1 will be mainly explained, and explanations that overlap with Embodiment 1 will be omitted.

Machine 1c is similar to control device 11 of embodiment 1, except that control device 11c is provided instead of control device 11. Control device 11c is similar to control device 11 of embodiment 1, except that self-diagnosis unit 18 is added. Self-diagnosis unit 18 performs self-diagnosis of the health state of machine 1c using information indicating the state of machine 1c stored in memory 15, machine signals of machine peripheral devices 2, etc., generates self-diagnosis data indicating the self-diagnosis result, and outputs the self-diagnosis data to transmission data conversion unit 14. Transmission data conversion unit 14 generates transmission data in the same manner as embodiment 1, using the self-diagnosis data as output data of embodiment 1. The operation of two-dimensional code generation unit 13 and screen display unit 12 is similar to embodiment 1.

In this embodiment, an example will be described in which a diagnostic service that responds to inquiries about machine 1c, requests for diagnosis, and the like is provided on the Web. For example, Web server 7 has a function of providing information provided as a Web page (not shown) to a terminal, including mobile information terminal 3a, in response to an access request from the terminal. A user making an inquiry about machine 1c, requesting a diagnosis, and the like, operates mobile information terminal 3a to cause the mobile information terminal 3a to display the information on the Web page.

The portable information terminal 3a is the same as the portable information terminal 3 of the first embodiment except that an authentication section 34 is added. The authentication unit 34 performs user authentication processing for using the diagnostic service. For example, the authentication unit 34 transmits to the Web server 7 a user ID (IDentifier: identification information) and password registered in advance to use the diagnostic service. The user ID and password may be input into the mobile information terminal 3a by the user, or may be stored in the mobile information terminal 3a. Note that the authentication method is not limited to this example.

The user uses the mobile information terminal 3a to take a photograph including a two-dimensional code, as in the first embodiment, to obtain the photographed data. After authentication, the user uses the mobile information terminal 3a to post the posting data including the photographed data to a user posting page, which is a posting page dedicated to the user. That is, the mobile information terminal 3a transmits the posting data to the web server 7 based on an input from the user. Note that a posting page may be provided for each thread.

The web server 7 includes an authentication unit 71, a user posted data management unit 72, a posted data storage unit 73, an image recognition unit 74, a learning data storage unit 75, a data storage unit 76, a message notification unit 77, an image analysis unit 42, a two-dimensional code decoding unit 43, and an output data restoration unit 44. The image analysis unit 42, the two-dimensional code decoding unit 43, and the output data restoration unit 44 are similar to the image analysis unit 42, the two-dimensional code decoding unit 43, and the output data restoration unit 44 of the server 4 in the first embodiment.

The authentication unit 71 performs authentication processing with the mobile information terminal 3a, and upon receiving posted data transmitted from a successfully authenticated mobile information terminal 3a, outputs the posted data together with the corresponding user identification information to the user posted data management unit 72. The user posted data management unit 72 stores the posted data in the posted data storage unit 73. Furthermore, upon receiving the posted data, the user posted data management unit 72 notifies the message notification unit 77 that a post has been made. The posted data stored in the posted data storage unit 73 is managed for each user. Furthermore, if a posting page is provided for each thread, the posted data stored in the posted data storage unit 73 may further be managed for each thread.

The two-dimensional code detection unit 421 of the image analysis unit 42 reads out the posting data for each case stored in the posting data storage unit 73, extracts a two-dimensional code image from the photographed data included in the posting data, and outputs the extracted two-dimensional code image to the two-dimensional code decoding unit 43. The two-dimensional code detection unit 421 may extract a two-dimensional code image from the photographed data in the same manner as in the first embodiment, or may extract a two-dimensional code image using the image recognition result obtained by the image recognition unit 74 shown in FIG. 26. In this case, the two-dimensional code detection unit 421 outputs the photographed data to the image recognition unit 74, and the image recognition unit 74 uses the feature amount teaching data stored in the learning data storage unit 75 to identify each feature part from the photographed image shown by the photographed data, recognizes the two-dimensional code in the photographed image using the identified result, and notifies the two-dimensional code detection unit 421 of the recognition result.

The image recognition unit 74 recognizes a characteristic portion that is a predetermined characteristic portion by pattern recognition or the like. The characteristic portion is, for example, a common frame that is an outer frame of a two-dimensional code display screen, a display frame that is an area in which a two-dimensional code can be displayed, a square-shaped portion provided at three corners of a two-dimensional code, a portion in which a screen page is displayed, and the like. The pattern recognition may be performed by machine learning. That is, the image recognition unit 74 may recognize the position of the two-dimensional code in the image shown by the shooting data by machine learning based on the feature amount of the image showing the two-dimensional code, and output the recognition result to the two-dimensional code detection unit 421.

FIG. 27 is a diagram showing an example of a characteristic part on the two-dimensional code display screen of this embodiment. In FIG. 27, the characteristic parts are a characteristic part F1 which is a common frame of the two-dimensional code output screen, a characteristic part F2 which is a display frame that can display the two-dimensional code, and a characteristic part F2 which is a display frame that can display the two-dimensional code, and a characteristic part F1 which is a common frame of the two-dimensional code output screen, and a characteristic part F2 which is a display frame in which the two-dimensional code can be displayed. A characteristic portion F3, which is a square-shaped portion where a screen page is displayed, and a characteristic portion F4, which is a portion where a screen page is displayed, are illustrated. The two-dimensional code stores information indicating the arrangement of the feature parts F1 to F4 as exemplified in FIG. put. The feature amount may be of any kind, and may include, for example, the shape of the line, the length of the line, the slope of the line, the color, etc., or may be the image itself. The image recognition unit 74 uses the feature amount teaching data stored in the learning data storage unit 75 to identify each characteristic part from the captured image indicated by the captured data, thereby identifying the position of the two-dimensional code in the captured image. Detection accuracy can be improved.

The image recognition by the image recognition unit 74 may be performed by machine learning such as supervised learning. As the algorithm for supervised learning, a neural network, a support vector machine, etc. may be used, but are not limited to these. For example, the image recognition unit 74 includes a trained model generation unit, an inference unit, and a preprocessing unit, and the preprocessing unit cuts out a part corresponding to the image of the two-dimensional code from the photographed data, and calculates the feature amount from the cut-out part. In addition, an image that is not a two-dimensional code is prepared, and the trained model generation unit uses the calculated feature amount as input data, and the input data and information indicating whether or not the image is a two-dimensional code image that is the corresponding correct answer data as a training data set, generates a trained model using multiple training data sets, and stores the trained model in the training data storage unit 75. At the time of inference, that is, when extracting a two-dimensional code image, the preprocessing unit cuts out a part of the image of the photographed image indicated by the photographed data, extracts the feature amount from the cut-out image, and the inference unit inputs the feature amount into the trained model stored in the training data storage unit 75, thereby inferring whether or not the input image is an image of a two-dimensional code. By sequentially changing the area of the image to be cut out from the captured image and performing these processes, the inference unit can obtain a cut-out image that is inferred to be an image of a two-dimensional code. Note that the image recognition unit 74 may not include a trained model generation unit, and a learning device that generates a trained model may be separately provided, and the trained model generated by the learning device may be stored in the learning data storage unit 75.

Returning to the explanation of FIG. 26. Two-dimensional code decoding section 43 and output data restoring section 44 perform the same processing as in the first embodiment. The output data restoration unit 44 stores the restored output data in the restored data storage unit 45 in the data storage unit 76 for each case. Further, information other than the photographic data among the posted data is read from the posted data storage unit 73 by a control unit (not shown) that controls the web server 7, and is stored in the data storage unit 76 in association with the restored data. Ru.

When notified of the posting, the message notification unit 77 notifies the reception computer 5 of the posting. The message notification unit 77 also transmits a reply to the post from the reception computer 5, which will be described later, to the mobile information terminal 3a. Furthermore, the message notification unit 77 may notify the operator that there has been a post by, for example, transmitting it to a terminal (not shown) of the operator.

The response computer 5 includes a diagnostic information storage unit 51, an AI (Artificial Intelligence) bot 52, and a response transmission unit 53. The response computer 5 of embodiments 1 to 5 may be the same as the response computer 5 of the present embodiment, or may have a different configuration from the response computer 5 of the present embodiment.

The diagnostic information storage unit 51 stores device diagnostic information for diagnosing the machine 1c. The device diagnostic information may be stored in the diagnostic information storage unit 51 as a device diagnostic DB (DataBase), for example. The device diagnostic information includes, for example, one or more of an analysis flowchart for obtaining a primary diagnostic result according to the contents of the output data, an analysis flowchart for performing a secondary diagnosis based on the primary diagnostic result, and a countermeasure method based on the primary diagnostic result (inspection points, inspection methods, direct contact information, etc.). In addition, images, documents, etc. for explaining the inspection points, inspection methods, etc., may be included in the device diagnostic information as countermeasures.

When the AI bot 52, which is an automatic conversation unit, is notified of the posting, it outputs information indicating a predetermined primary response to the response transmission unit 53, and also outputs the restored data in the data storage unit 76 of the web server 7. Output data is acquired for each case from the storage unit 45. The AI bot 52 generates a response to the post using the acquired output data and the device diagnostic information stored in the diagnostic information storage section 51, and outputs the generated response to the response transmitting section 53. For example, the AI bot 52 performs a primary diagnosis using the acquired output data and the device diagnostic information stored in the diagnostic information storage unit 51, and generates an answer including the primary diagnosis result and a countermeasure. When a response to the countermeasure is received via the mobile information terminal 3a and the web server 7 by presenting the countermeasure to the user, the response and the device diagnostic information stored in the diagnostic information storage unit 51 are used to A secondary diagnosis is performed and an answer including the secondary diagnosis result and a countermeasure is generated. Note that the method of calculating the diagnosis result by the AI bot 52 is not limited to this.

Note that the response to the post may be made by the operator when the operator is present, and the AI bot 52 may respond when the operator is absent. Furthermore, for inquiries that cannot be answered by the AI bot 52, the operator may create a response using a paper manual or the like.

The response sending unit 53 sends the response received from the AI bot 52 to the web server 7. The user posted data management unit 72 of the web server 7 outputs the response sent from the response sending unit 53 to the message notification unit 77. The message notification unit 77 sends the response received from the user posted data management unit 72 to the mobile information terminal 3a.

FIG. 28 is a diagram showing an example of diagnosis in the diagnostic system 6c of this embodiment. As shown in FIG. 28, for example, a user submission page screen 301 is displayed on the mobile information terminal 3a. The user of the machine 1c posts by operating the mobile information terminal 3a. In the example shown in FIG. 28, the user inputs a message indicating that alarm xx has occurred, and the photographed data obtained by photographing the two-dimensional code corresponding to the self-diagnosis data of the machine 1c together with this message is posted data. The information is transmitted from the mobile information terminal 3a to the Web server 7 as a. Note that a two-dimensional code corresponding to other output data may be generated together with the self-diagnosis data, and photographed data obtained by photographing the two-dimensional code may be transmitted as posted data.

Using the photographic data included in the posting data stored in the posting data storage unit 73, the image analysis unit 42, the two-dimensional code decoding unit 43, and the output data restoration unit 44 restore the self-diagnosis data, which is the output data. Meanwhile, in the Web server 7, the message notification unit 77 notifies the AI bot 52 and the operator that the posting data has been posted, and the AI bot 52 or the operator makes a primary response. The primary response of the AI bot 52 is transmitted to the mobile information terminal 3a via the Web server 7 as described above. In the example shown in FIG. 28, the message "Accepted" is displayed as the primary response.

The AI bot 52 performs a primary diagnosis using the self-diagnosis data and the device diagnosis DB, and transmits a countermeasure corresponding to the primary diagnosis result to the mobile information terminal 3a as a secondary response. Note that the secondary response of the AI bot 52 is also transmitted to the mobile information terminal 3a via the web server 7. Note that the primary diagnosis result of the AI bot 52 may be transmitted to the operator's terminal, and the operator may transmit the secondary response to the mobile information terminal 3a using the terminal or the like. In the example shown in FIG. 28, the primary diagnosis result, a countermeasure, and an image corresponding to the countermeasure are displayed as the secondary response.

FIG. 28 is an example, and the specific response content is not limited to the example shown in FIG. 28. Furthermore, in FIG. 26, the response from the AI bot 52 is transmitted via the web server 7, but it may also be transmitted from the reception computer 5 to the mobile information terminal 3a.

Other than as described above, the operation of this embodiment is the same as that of embodiment 1. In addition, the hardware configuration of the control device 11c of this embodiment is the same as that of the control device 11 of embodiment 1. The web server 7 of this embodiment also has the same hardware configuration as the server 4 of embodiment 1.

Although the differences from Embodiment 1 have been explained here based on Embodiment 1, the configuration and operation described in this embodiment have been added to the diagnostic systems of Embodiments 2 to 5. You can.

As described above, in this embodiment, the mobile information terminal 3a posts the photographed data obtained by photographing the two-dimensional code corresponding to the output data of the machine 1c to the user posting page managed by the Web server 7. Post. Since the web server 7 restores the output data from the photographed data, even if the reception computer 5 needs to acquire multiple types of information for diagnosis, the reception computer 5 can Corresponding output data can be easily checked. In addition, the reception computer 5 reads the output data of the machine 1c from the web server 7 and performs diagnosis using the output data, thereby performing diagnosis and maintenance remotely without the need for a worker to go to the installation location of the machine 1c. be able to.

The configurations shown in the embodiments above are merely examples, and can be combined with other known techniques, or can be combined with other embodiments, within the scope of the gist. It is also possible to omit or change part of the configuration.

1, 1a, 1b, 1c machine, 2 machine peripheral equipment, 3, 3a mobile information terminal, 4 server, 5 reception computer, 6, 6a, 6b, 6c diagnostic system, 7 web server, 11, 11a, 11b, 11c control device, 12, 12a screen display section, 13 two-dimensional code generation section, 14, 14a transmission data conversion section, 15 memory, 16 drive device, 17 mechanical signal processing device, 18 self-diagnosis section, 31 camera, 32 photographed image memory, 33 network communication section, 34, 71 authentication section, 41 photographed image storage section, 42 image analysis section, 43 two-dimensional code decoding section, 44 output data restoration section, 45 restored data storage section, 51 diagnostic information storage section, 52 AI bot , 53 Answer transmission unit, 72 User posted data management unit, 73 Posted data storage unit, 74 Image recognition unit, 75 Learning data storage unit, 76 Data storage unit, 77 Message notification unit, 121, 121a Device data output unit, 122 , 122a two-dimensional code display section, 123 automatic page switching section, 141 division size adjustment section, 421 two-dimensional code detection section.

Claims (13)

Controlling a machine, generating a plurality of divided data by dividing output data used for at least one of diagnosis and maintenance of the machine, and each of the plurality of divided data having identification information of the output data. a control device that generates transmission data to which data identification information and division information indicating the order of the divided data are added, converts the transmission data into a two-dimensional code, and displays the two-dimensional code;
Receiving photographic data in which the displayed two-dimensional code is data of an image taken from an information terminal that photographed the image, extracting the two-dimensional code from the photographing data, and extracting the two-dimensional code from the photographed data. a server that decodes the code and restores the output data from a plurality of pieces of decoded information using the data identification information and the division information included in the decoded information obtained by the decoding;
Equipped with
The control device, based on the number of pixels in the vertical and horizontal directions of the area where the two-dimensional code can be displayed, the data size of the output data, and the predetermined number of pixels of one cell of the two-dimensional code, When a plurality of said two-dimensional codes corresponding to one said output data are displayed across one or more screen pages, the number of said two-dimensional codes displayed simultaneously on one said screen page and the number of said two-dimensional codes displayed simultaneously. A diagnostic system characterized in that the data size of the divided data corresponding to each of the plurality of two-dimensional codes is determined. a control device that controls a machine, generates a plurality of divided data by dividing output data used for at least one of diagnosis and maintenance of the machine, generates transmission data by adding data identification information, which is identification information of the output data, and division information indicating an order of the divided data to each of the plurality of divided data, converts the transmission data into a two-dimensional code, and displays the two-dimensional code;
a server that receives image data, which is data of an image in which the displayed two-dimensional code is captured, from an information terminal that captured the image, extracts the two-dimensional code from the image data, decodes the extracted two-dimensional code, and restores the output data from a plurality of pieces of decoded information using the data identification information and division information included in the decoded information obtained by the decoding;
Equipped with
In the two-dimensional code screen on which the control device displays the two-dimensional code, when the two-dimensional code corresponding to one of the output data is displayed across a plurality of screen pages, the screen pages are automatically switched at a switching interval that is a fixed time;
the captured data is data of a moving image captured so as to include the plurality of screen pages,
The diagnostic system described in claim 1, characterized in that the server uses the switching interval to extract images corresponding to the multiple screen pages from the captured data, extracts the two-dimensional code from the extracted images, decodes the extracted two-dimensional code, and restores the output data from the multiple pieces of decoded information using the data identification information and the division information contained in the decoded information obtained by decoding. a control device that controls a machine, generates a plurality of divided data by dividing output data used for at least one of diagnosis and maintenance of the machine, generates transmission data by adding data identification information, which is identification information of the output data, and division information indicating an order of the divided data to each of the plurality of divided data, converts the transmission data into a two-dimensional code, and displays the two-dimensional code;
a server that receives image data, which is data of an image in which the displayed two-dimensional code is captured, from an information terminal that captured the image, extracts the two-dimensional code from the image data, decodes the extracted two-dimensional code, and restores the output data from a plurality of pieces of decoded information using the data identification information and division information included in the decoded information obtained by the decoding;
Equipped with
In the two-dimensional code screen on which the control device displays the two-dimensional code, when a plurality of the two-dimensional codes corresponding to one of the output data are displayed across a plurality of screen pages, the screen pages are automatically switched at a switching interval that is a fixed time;
the photographing data is data of a plurality of still images photographed by continuous shooting at a period equal to a natural fraction of the switching interval so as to include the plurality of screen pages;
The diagnostic system described in claim 1, characterized in that the server extracts images corresponding to multiple screen pages from the multiple still images using the period, extracts the two-dimensional code from the extracted images, decodes the extracted two-dimensional code, and restores the output data from the multiple pieces of decoded information using the data identification information and the division information contained in the decoded information obtained by decoding. The server uses machine learning to recognize the position of the two-dimensional code in the image indicated by the photographic data based on the feature amount of the image indicating the two-dimensional code, and uses the recognition result to identify the position of the two-dimensional code from the photographic data. The diagnostic system according to any one of claims 1 to 3, wherein the two-dimensional code is extracted. A control device that controls a machine,
A plurality of divided data are generated by dividing the output data used for at least one of diagnosis and maintenance of the machine, and each of the plurality of divided data includes data identification information that is identification information of the output data and the a transmission data conversion unit that generates transmission data added with division information indicating the order of the division data;
a two-dimensional code generation unit that converts the transmission data into a two-dimensional code;
a two-dimensional code display section that displays the two-dimensional code;
Equipped with
The transmission data conversion unit is configured to convert data based on the number of pixels in the vertical and horizontal directions of the area in which the two-dimensional code can be displayed, the data size of the output data, and the predetermined number of pixels in one cell of the two-dimensional code. the number of two-dimensional codes simultaneously displayed on one screen page when a plurality of two-dimensional codes corresponding to one output data are displayed over one or more screen pages; and A control device characterized in that the data size of a two-dimensional code and the data size of the divided data respectively corresponding to a plurality of the two-dimensional codes displayed simultaneously are determined. The control device according to claim 5, characterized in that, when the two-dimensional code display unit displays the two-dimensional code corresponding to one piece of output data across multiple screen pages, the two-dimensional code display unit automatically switches the screen pages at a switching interval that is a fixed time. a control device for controlling a machine generates a plurality of divided data by dividing output data used for at least one of diagnosis and maintenance of the machine, generates transmission data by adding data identification information which is identification information of the output data and division information which indicates an order of the divided data to each of the plurality of divided data, converts the transmission data into a two-dimensional code, and displays the two-dimensional code;
a server receives, from an information terminal that has captured the image, image data of the captured image of the displayed two-dimensional code, extracts the two-dimensional code from the image data, decodes the extracted two-dimensional code, and restores the output data from the plurality of pieces of decoded information using the data identification information and the division information included in the decoded information obtained by the decoding;
A diagnostic method characterized in that the control device determines, based on the number of two-dimensional codes to be displayed simultaneously on one screen page when multiple two-dimensional codes corresponding to one output data are displayed across one or more screen pages, and the data sizes of the divided data corresponding to each of the multiple two-dimensional codes displayed simultaneously, based on the vertical and horizontal pixel count of the area in which the two-dimensional code can be displayed, the data size of the output data, and the predetermined number of pixels per cell of the two-dimensional code. a control device for controlling a machine generates a plurality of divided data by dividing output data used for at least one of diagnosis and maintenance of the machine, generates transmission data by adding data identification information which is identification information of the output data and division information which indicates an order of the divided data to each of the plurality of divided data, converts the transmission data into a two-dimensional code, and displays the two-dimensional code;
a server receives, from an information terminal that has captured the image, image data of the captured image of the displayed two-dimensional code, extracts the two-dimensional code from the image data, decodes the extracted two-dimensional code, and restores the output data from the plurality of pieces of decoded information using the data identification information and the division information included in the decoded information obtained by the decoding;
In the two-dimensional code screen on which the control device displays the two-dimensional code, when a plurality of the two-dimensional codes corresponding to one of the output data are displayed across a plurality of screen pages, the screen pages are automatically switched at a switching interval that is a fixed time;
the captured data is data of a moving image captured so as to include the plurality of screen pages,
The diagnostic method according to claim 7, characterized in that the server uses the switching interval to extract images corresponding to the plurality of screen pages from the captured data, extracts the two-dimensional code from the extracted images, decodes the extracted two-dimensional code, and restores the output data from the plurality of pieces of decoded information using the data identification information and the division information contained in the decoded information obtained by decoding. a control device for controlling a machine generates a plurality of divided data by dividing output data used for at least one of diagnosis and maintenance of the machine, generates transmission data by adding data identification information which is identification information of the output data and division information which indicates an order of the divided data to each of the plurality of divided data, converts the transmission data into a two-dimensional code, and displays the two-dimensional code;
a server receives, from an information terminal that has captured the image, image data of the captured image of the displayed two-dimensional code, extracts the two-dimensional code from the image data, decodes the extracted two-dimensional code, and restores the output data from the plurality of pieces of decoded information using the data identification information and the division information included in the decoded information obtained by the decoding;
In the two-dimensional code screen on which the control device displays the two-dimensional code, when a plurality of the two-dimensional codes corresponding to one of the output data are displayed across a plurality of screen pages, the screen pages are automatically switched at a switching interval that is a fixed time;
the photographing data is data of a plurality of still images photographed by continuous shooting at a period equal to a natural fraction of the switching interval so as to include the plurality of screen pages;
The diagnostic method according to claim 7, characterized in that the server extracts images corresponding to a plurality of screen pages from the plurality of still images using the period, extracts the two-dimensional code from the extracted images, decodes the extracted two-dimensional code, and restores the output data from the plurality of pieces of decoded information using the data identification information and the division information contained in the decoded information obtained by decoding. The server uses machine learning to recognize the position of the two-dimensional code in the image indicated by the photographic data based on the feature amount of the image indicating the two-dimensional code, and uses the recognition result to identify the position of the two-dimensional code from the photographic data. The diagnostic method according to any one of claims 7 to 9, characterized in that the two-dimensional code is extracted. In the control device that controls the machine,
A plurality of divided data are generated by dividing the output data used for at least one of diagnosis and maintenance of the machine, and each of the plurality of divided data includes data identification information that is identification information of the output data and the generating transmission data added with division information indicating the order of the division data, converting the transmission data into a two-dimensional code, and executing a process of displaying the two-dimensional code,
to the server,
Receiving photographic data in which the displayed two-dimensional code is data of an image taken from an information terminal that photographed the image, extracting the two-dimensional code from the photographing data, and extracting the two-dimensional code from the photographed data. decoding the code and using the data identification information and the division information included in the decoding information obtained by the decoding to perform a process of restoring the output data from a plurality of the decoding information;
the control device;
One of the output data based on the number of pixels in the vertical and horizontal directions of the area where the two-dimensional code can be displayed, the data size of the output data, and the predetermined number of pixels in one cell of the two-dimensional code. The number of said two-dimensional codes simultaneously displayed on one said screen page when a plurality of said two-dimensional codes corresponding to said two-dimensional codes are displayed over one or more screen pages; A diagnostic program, characterized in that the program executes a process of determining a data size of the divided data corresponding to each dimension code. In the control device that controls the machine,
A plurality of divided data are generated by dividing the output data used for at least one of diagnosis and maintenance of the machine, and each of the plurality of divided data includes data identification information that is identification information of the output data and the generating transmission data added with division information indicating the order of the division data, converting the transmission data into a two-dimensional code, and executing a process of displaying the two-dimensional code,
to the server,
Receiving photographic data in which the displayed two-dimensional code is data of an image taken from an information terminal that photographed the image, extracting the two-dimensional code from the photographing data, and extracting the two-dimensional code from the photographed data. decoding the code and using the data identification information and the division information included in the decoding information obtained by the decoding to perform a process of restoring the output data from a plurality of the decoding information;
When the two-dimensional code screen on which the control device displays the two-dimensional code is displayed over a plurality of screen pages, the two-dimensional code screen corresponding to one output data is displayed at a switching interval that is a certain period of time. The screen page will switch automatically,
The shooting data is data of a video shot including the plurality of screen pages,
to the server,
Using the switching interval, extracting images corresponding to the plurality of screen pages from the photographic data, extracting the two-dimensional code from the extracted image, decoding the extracted two-dimensional code, and decoding. 12. The diagnostic program according to claim 11, wherein the diagnostic program executes a process of restoring the output data from a plurality of pieces of decoding information using the data identification information and the division information included in the decoding information obtained. In the control device that controls the machine,
A plurality of divided data are generated by dividing the output data used for at least one of diagnosis and maintenance of the machine, and each of the plurality of divided data includes data identification information that is identification information of the output data and the generating transmission data added with division information indicating the order of the division data, converting the transmission data into a two-dimensional code, and executing a process of displaying the two-dimensional code,
to the server,
Receiving photographic data in which the displayed two-dimensional code is data of an image taken from an information terminal that photographed the image, extracting the two-dimensional code from the photographing data, and extracting the two-dimensional code from the photographed data. decoding the code and using the data identification information and the division information included in the decoding information obtained by the decoding to perform a process of restoring the output data from a plurality of the decoding information;
When the two-dimensional code screen on which the control device displays the two-dimensional code is displayed over a plurality of screen pages, the two-dimensional code screen corresponding to one output data is displayed at a switching interval that is a certain period of time. The screen page will switch automatically,
The photographic data is data of a plurality of still images photographed by continuous shooting at a cycle that is a natural number fraction of the switching interval so as to include the plurality of screen pages,
to the server,
Extracting images corresponding to a plurality of screen pages from the plurality of still images using the period, extracting the two-dimensional code from the extracted image, decoding the extracted two-dimensional code, and obtaining a result of the decoding. 12. The diagnostic program according to claim 11, wherein the diagnostic program executes a process of restoring the output data from a plurality of pieces of decoding information using the data identification information and the division information included in the decoding information.

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