Inspection device and program for inspected products

Abstract

The purpose is to improve the efficiency of the inspection work for the products to be inspected. [Solution] The inspection device 1 comprises a mounting table 42 for mounting an inspected product 51, a plurality of cameras 21-23 for capturing images of the inspected product mounted on the mounting table, a judgment unit 104-106 for judging whether the inspected product is correct or not based on images captured by each of the plurality of cameras, an inspection lamp 35 for displaying the result of the judgment by the judgment unit, an operation switch 33 for instructing the start of inspection, and an inspection sequence control unit 102 for controlling the inspection sequence in response to operation of the operation switch. The sequence control unit executes a series of processes relating to the capturing of images by each of the plurality of cameras, the judgment by the judgment unit based on the images captured by each of the plurality of cameras, and the display of the result of the judgment by the judgment unit in a predetermined order, and when the judgment result is "incorrect", stops the series of processes without proceeding to the next series of processes at that point, and waits for operation of the operation switch.

Description

[Technical field]

[0001] The present disclosure relates to an inspection device and a program for inspecting an item to be inspected. [Background technology]

[0002] Gaming machines have many parts attached to the front and back of the game board, such as gimmicks for performance, LCD screens, and various circuit boards. These parts are inspected at the time of delivery to ensure they are installed correctly. The inspection includes many items such as missing parts, missing parts, mixed-up parts, incorrect installation positions of parts, incorrect installation heights of parts, missing screws to attach parts to the game board, improper installation such as floating or half-inserted connectors, missing stickers with serial numbers, errors in serial numbers or board numbers, discoloration or uneven coloring of the gimmicks for performance, and incorrect gimmick positions.

[0003] The mainstream inspection method is visual inspection using a camera. Since there are many different types of inspection objects and items, it is difficult to cover them all with one camera. Multiple cameras with different specifications such as resolution, number of pixels, field of view size, color (hue) / monochrome (brightness), and size are required.

[0004] The cameras are arranged, for example, along a conveyor. The gaming machines transported by the conveyor are imaged by each of the cameras as they pass by.

[0005] In addition, a stand for installing the gaming machine is provided for each of the multiple cameras, and an inspection worker sets the gaming machine on the stand and performs imaging, then transports the gaming machine to the next stand, resets it, and performs imaging, and repeats this process until all imaging is completed.

[0006] In either method, the imaging by the camera and the judgment process occur on separate time axes, and the judgment results are shown on the display sequentially each time the judgment process is completed, separate from the imaging.

[0007] For gaming machines that are judged to be "incorrect (defective, inappropriate, non-compliant)," the inspection worker must remove the gaming machine from its installation stand, transport it to a repair center, check the affected areas, perform repair work such as replacing or reinstalling parts as necessary, and then transport it to the re-inspection center for re-inspection, which is an extremely burdensome and inefficient process.

[0008] In the latter method, since the installation tables are separated, transporting the gaming machines and repeating the setup work on each installation table is not only a heavy workload but also inefficient. Summary of the Invention [Problem to be solved by the invention]

[0009] The purpose is to improve the efficiency of the inspection work for the products to be inspected. [Means for solving the problem]

[0010] The embodiment of the present invention relates to an inspection object Run the inspection The inspection device has multiple cameras that capture images of the product to be inspected, and based on the images captured by each of the multiple cameras, Regarding multiple test items a judgment unit that judges whether the inspected product is correct or not, a display unit that displays the result of the judgment by the judgment unit, and a series of processes related to taking images by each of a plurality of cameras, making a judgment by the judgment unit based on the images taken by each of the plurality of cameras, and displaying the result of the judgment by the judgment unit are executed in a predetermined order, and when the result of the judgment is "incorrect", the process is stopped at that point without proceeding to the next series of processes, Resume from the first sequence of operations and a sequence control unit. The display unit has a display and an inspection lamp. The display displays the judgment results of a plurality of inspection items, and the inspection lamp lights up in "red" when at least one of the inspection items is incorrect, and lights up in "blue" when all of the inspection items are correct. . [Brief description of the drawings]

[0011] [Figure 1] FIG. 2 is a diagram showing the physical configuration of an inspection device for a gaming machine according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a diagram showing the functional configuration of the processor in FIG. 1. [Diagram 3] FIG. 2 is a perspective view showing the first to third cameras, the articulated robot device, and the installation stand shown in FIG. [Figure 4] FIG. 4 is a perspective view showing the gaming machine set on the installation table of FIG. 3. [Diagram 5] 2 is a flowchart showing the first half of the procedure of the inspection operation of the inspection apparatus of FIG. 1; [Figure 6] 4 is a flowchart showing the second half of the procedure of the inspection operation of the inspection apparatus of FIG. 1; [Figure 7] 1. FIG. 4 is a perspective view showing close-up imaging by the third camera in FIG. [Figure 8] 6 is a perspective view showing a modified example (horizontal type) of the installation stand in FIG. 5. [Figure 9] FIG. 9 is a perspective view showing a state in which the gaming machine is set on the installation table of FIG. 8. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. The inspection device according to this embodiment inspects gaming machines. For the inspection, a visual inspection using a camera is employed. At least two cameras with different specifications are used depending on the inspection content. Three cameras are used here. The three cameras are responsible for capturing images of the front side of the gaming machine, the back side, and close-up images, respectively. Based on the images captured by the three cameras, various inspection items are judged, such as whether the color of the mechanism (gimmick) for the performance is appropriate, whether the position of the gimmick is appropriate, whether there are any missing parts attached to the board, and whether there are any missing screws for fixing the parts to the board. Multiple inspection items are assigned to each of the three cameras.

[0013] During the inspection, the gaming machine to be inspected is set on a setting stand by an inspection worker. In order to complete all appearance inspections with the three cameras while the gaming machine is set on the setting stand without having to move the gaming machine for each inspection with the cameras, the three cameras are arranged around the setting stand, and the support plate that supports the gaming machine has an opening for exposing the front or back of the gaming machine.

[0014] During an actual inspection, the inspection worker operates an operating switch (inspection switch) to trigger a series of processes related to capturing images with each camera, judging the images based on them, and displaying the judgment results, while switching between the cameras in order.If the judgment result is "incorrect (non-compliant, inappropriate, defective)", the series of processes related to the next camera is stopped at that point and the operation of the operating switch is awaited.

[0015] When the inspection stops, the inspection worker finds the cause of the error, and if it is determined to be a cause that can be solved on the spot, repairs are made there and then without moving the gaming machine. When the repairs are completed, the inspection worker operates the operation switch again. This operation restarts the inspection. Since repairs can be made on the spot, it is more efficient than transporting the gaming machine to another location for repairs.

[0016] When the inspection is restarted, it is restarted by returning to the series of processes related to the first camera. No matter at what stage the inspection is stopped, it is restarted by returning to the series of processes related to the first camera, so even if new non-conformities, inadequacies, or defects occur due to parts being out of position due to repair work, they can be inspected again.

[0017] Repairs and inspections may be resumed as many times as the inspection worker deems necessary. If the malfunction remains unresolved even after repairs, or if the inspection worker determines that the cause is not something that can be solved on the spot, the inspection worker will at that stage determine that the gaming machine is unacceptable or that specialized repairs are necessary, and will move to the appropriate location.

[0018] The details are explained below. 1, the inspection device 1 is composed of an information processing device 10, a first camera 21 for imaging the front side of the gaming machine, a second camera 22 for imaging the back side of the gaming machine, a third camera 23 for closely imaging the back side of the gaming machine, an articulated robot device 31 with the third camera 23 attached to the tip of its arm, an inspection switch 33 that an inspection worker operates to command the start of the inspection process, and an inspection lamp 35 for indicating whether the inspection result is correct or incorrect. Each of the cameras 21-23 is equipped with lighting.

[0019] The information processing device 10 has a processor 11. Connected to the processor 11 via a data / control bus 19 are a random access memory (RAM) 12, a read only memory (ROM) 13, a storage device 14 such as a hard disk drive (HDD) or a solid state drive (SSD), an input device 15 such as a keyboard or a mouse, a display 16, and an interface 17. The processor 11 is connected to cameras 21-23, an articulated robot device 31, an inspection switch 33, and an inspection lamp 35 via the interface 17.

[0020] The processor 11 is composed of a CPU (Central Processing Unit) and a GPU (Graphics Processing Unit). The processor 11 executes an inspection program loaded from the storage device 14 to the RAM 12 to perform inspection processing of the gaming machine. The RAM 12 functions as the main memory, work area, etc. of the processor 11. The ROM 13 stores a BIOS (Basic Input Output System), an operating system program (OS), etc., which are executed by the processor 11. The storage device 14 stores various data such as the inspection program according to this embodiment, data of images captured by the cameras 21-23, reference image data, data required for the judgment processing such as standard values ​​and threshold values, and judgment results.

[0021] 2 shows the functional configuration of the processor 11. By executing the above-mentioned inspection program, the processor 11 functions as a control unit 101 that performs overall control of the entire information processing device, a first camera controller 121 that drives the first camera 21, a second camera controller 122 that drives the second camera 22, a third camera controller 123 that drives the third camera 23, a robot controller 131 that controls the operation of the articulated robot device 31, a switch detection unit 133 that detects the state of the inspection switch 33, and a lamp driver 135 that drives the inspection lamp 35.

[0022] Furthermore, by executing the above-mentioned inspection program, the processor 11 functions as a storage management unit 103 which controls the writing / reading of image data, etc. to the storage device 14, a first judgment unit 104 which judges the correctness of the gaming machine with respect to the inspection item in charge based on an image captured by the first camera 21, a second judgment unit 105 which judges the correctness of the gaming machine with respect to the inspection item in charge based on an image captured by the second camera 22, a third judgment unit 106 which judges the correctness of the gaming machine with respect to the inspection item in charge based on an image captured by the third camera 23, an inspection lamp 35, a display control unit 107 for displaying details of the judgment result on the display 16, and an inspection sequence control unit 102 which controls the first to third camera controllers 121, 122, 123, the robot controller 131 and the lamp driver 135 in accordance with a predetermined inspection sequence.

[0023] Fig. 3 shows an installation stand for installing a gaming machine at an inspection position, together with the first to third cameras 21-23 and the articulated robot device 31. Fig. 4 shows the gaming machine set on the installation stand. The installation stand 42 has a base 45, and a support plate 43 is vertically erected on the base 45. The support plate 43 is rectangular, and has a rectangular opening 44 in its center. A gaming machine 51 is supported by the support plate 43 and installed vertically on the base 45. The base 45 is held horizontally on the stand 41, so that the gaming machine 51 is installed vertically by the support plate 43.

[0024] The first camera 21 is supported by the base 41 via an arm (not shown) at a position where the first camera 21 can take an image of the front surface of the gaming machine 51 installed vertically through the opening 44. The second camera 22 is supported by the base 41 via an arm (not shown) at a position where the second camera 22 can directly take an image of the rear surface of the gaming machine 51 installed vertically. The articulated robot device 31 is installed on the base 41 at a position to the side of the support plate 43, and the third camera 23 is attached to the tip of the arm of the articulated robot device 31. The third camera 23 can take images of the front and rear surfaces of the gaming machine 51 from a close position in any posture by the movement of the articulated robot device 31. In addition, an inspection switch 33 and an inspection lamp 35 are installed on the base 41.

[0025] 5 and 6 show the procedure of the inspection operation by the inspection device 1. In addition, dashed lines in Fig. 5 and Fig. 6 indicate the work process by the inspection worker. The gaming machine (inspected product) 51 to be inspected is transported to the installation stand 42 by the inspection worker and installed on the installation stand 42 (S11). The gaming machine 51 is placed on the base 45 and supported vertically by the support plate 43. The front surface of the installed gaming machine 51 is exposed through the opening 44 of the support plate 43 except for its peripheral portion. The back surface of the installed gaming machine 51 is exposed over its entirety.

[0026] The inspection sequence control unit 102 waits for the switch detection unit 133 to detect an operation (pressing) of the inspection switch 33 by the inspection operator (S12).

[0027] When the switch detection unit 133 detects the operation of the inspection switch 33 by the inspection operator (S12; Yes), the inspection sequence control unit 102 starts the inspection process.

[0028] The inspection sequence control unit 102 controls the first camera controller 121 to have the first camera 21 capture an image of the front side of the gaming machine 51 (S13). More specifically, under the control of the inspection sequence control unit 102, the first camera 21 repeatedly captures an image of the front side of the gaming machine 51 while, for example, changing the wavelength of the light source. In order to improve color discrimination, eight types of illumination wavelengths are switched in sequence, and the camera 21 repeatedly captures images in synchronization with the switching.

[0029] The first judgment unit 104 judges whether each of these inspection items is correct or not from the eight images with different illumination wavelengths (S14). Inspection items on the front side of the gaming machine include, for example, the color of the mechanism (gimmick) for the performance (discoloration, color unevenness, etc.), the position of the gimmick, the position of the LCD screen, etc.

[0030] When the first judgment unit 104 judges that at least one of these inspection items is incorrect (incorrect), the inspection sequence control unit 102 controls the lamp driver 135 to turn on the inspection lamp 35 in "red", and when all of these inspection items are correct (correct), the inspection sequence control unit 102 controls the lamp driver 135 to turn on the inspection lamp 35 in "blue" (S15). Although not shown, the judgment results of these inspection items are displayed on the display 16. When the inspection lamp 35 turns on in "red", the inspection operator can visually identify which inspection items are incorrect.

[0031] If any one of the inspection items related to the surface of the gaming machine 51 is incorrect (incorrect) (S16; NG), the inspection sequence control unit 102 stops the inspection without proceeding to the second series of processes, and waits for the operation of the inspection switch 33.

[0032] When the inspection is stopped, the inspection operator performs the following (1) or (2) according to his / her own judgment (S17).

[0033] (1) If it is determined that the game machine 51 can be repaired on the spot, the game machine 51 is repaired on the spot while remaining installed on the installation table 42, and a reinspection is attempted. Of course, a reinspection may also be attempted without repair. (2) If it is determined on the spot that the machine is beyond repair, it is transported to a regular repair facility, or the gaming machine 51 is transported from the installation table 42 to a shelf for rejected items, and the next gaming machine 51 to be inspected is installed on the installation table 42.

[0034] Returning to step S12, when the inspection worker operates the inspection switch 33 (S12; Yes), the above-mentioned first series of processes (S13-S15) is executed for the repaired gaming machine 51 or the next gaming machine 51 under the control of the inspection sequence control unit 102. The repair and reinspection of the gaming machine 51 (the first series of processes (S13-S15)) can be repeated any number of times at the discretion of the inspection worker.

[0035] When all of the inspection items relating to the front surface of the gaming machine 51 are correct (proper), the process automatically proceeds to inspection of the back surface of the gaming machine 51 using the second camera 22 under the control of the inspection sequence control unit 102 (second series of processes, S18-S20) (S16; OK).

[0036] Under the control of the inspection sequence control unit 102, the second camera 22 captures an image of the entire rear surface of the gaming machine in a wide field of view (S18).

[0037] The second judgment unit 105 judges whether each inspection item is correct or not from the image acquired by the second camera 22 (S19). Inspection items on the back side of the gaming machine include, for example, whether a sticker with a serial number is missing, whether a metal plate is missing, whether a screw for attaching a part to the back side of the gaming board is missing, reading of the board number printed on the board, whether other parts are missing, etc.

[0038] If at least one of these inspection items is incorrect (missing item, reading error), the inspection sequence control unit 102 controls the lamp driver 135 to turn on the inspection lamp 35 in "red," and if all of these inspection items are correct (no missing item, proper reading), the inspection sequence control unit 102 controls the lamp driver 135 to turn on the inspection lamp 35 in "blue" (S20). Of course, although not shown, the results of the judgment of these inspection items are displayed on the display 16. When the inspection lamp 35 turns "red," the inspection operator can visually identify which inspection item is incorrect.

[0039] When any one of the inspection items related to the back surface of the gaming machine 51 is incorrect (S21; NG), the inspection sequence control unit 102 stops the inspection without proceeding to the third series of processes, and waits for the operation of the inspection switch 33.

[0040] When the inspection is stopped, the inspection worker executes the above-mentioned (1) or (2) (S22). Then, the process returns to step S12, and when the inspection worker operates the inspection switch 33 (S12; Yes), the inspection is resumed from the first series of steps (S13-S15) for the repaired gaming machine 51 or the next gaming machine 51 under the control of the inspection sequence control unit 102. It cannot be said that no defects will occur on the front side of the gaming machine 51 due to the repair work on the back side of the gaming machine 51, and high inspection accuracy can be achieved by resuming from the first series of steps (S13-S15) by the first camera 21.

[0041] The first series of steps (S13-S15) and the second series of steps (S18-S20) can be repeated any number of times at the discretion of the inspection operator.

[0042] When all of the inspection items related to the surface of the gaming machine 51 are correct (proper), the inspection sequence control unit 102 automatically proceeds to a proximity inspection of the gaming machine 51 (a third series of processes) (S21; OK).

[0043] In the third series of processes, the robot controller 131 controls the articulated robot device 31 so that the third camera 23 moves along a predetermined trajectory close to the front or back surface of the gaming machine and changes its posture (S23), repeatedly capturing images (S24).

[0044] The third determination unit 106 determines whether each inspection item is correct or incorrect from the images acquired by the third camera 23 (S25). Proximity inspection items for game machines include, for example, floating or half-insertion of connectors, height of parts, reading of the QR code (registered trademark) affixed to the game board 51, and missing parts.

[0045] If at least one of these inspection items is incorrect (missing item, reading error), the inspection sequence control unit 102 controls the lamp driver 135 to turn on the inspection lamp 35 in "red", and if all of these inspection items are correct (no missing items, proper reading), the inspection sequence control unit 102 controls the lamp driver 135 to turn on the inspection lamp 35 in "blue" (S26) and stops the inspection.

[0046] If any one of the proximity inspection items of the gaming machine 51 is incorrect (S28; NG), the inspection worker executes the above-mentioned (1) or (2) (S28). Then, the process returns to step S12, and with the operation of the inspection switch 33 by the inspection worker (S12; Yes), inspection is resumed from the first series of processes (S13-S15) described above for the repaired gaming machine 51 or the next gaming machine 51 under the control of the inspection sequence control unit 102. By resuming from the first series of processes (S13-S15) by the first camera 21, rather than from the second and third series of processes by the second and third cameras 22 and 23, it is possible to determine the occurrence of a new defect due to repairs, etc., and high inspection accuracy can be achieved.

[0047] If all of the proximity inspection items of the gaming machine 51 are positive (S28; OK), the inspection worker transfers the gaming machine 51 to the shelf for acceptable products (S29). If the inspection of all the items to be inspected is completed (S30; Yes), the inspection work ends. If the inspection of all the items to be inspected is not completed (S30; No), the next gaming machine 51 to be inspected is placed on the installation table, and the process returns to the inspection process S12.

[0048] As described above, according to this embodiment, the visual inspection using multiple cameras, three cameras in this case 21-23, can be completed while the gaming machine 51 to be inspected remains installed on the installation stand 42, and there is no need to transport the gaming machine to a different installation location for each visual inspection using the three cameras 21-23, thereby making it possible to improve the efficiency of the inspection work.

[0049] Furthermore, if even one error is found in the inspection results, the inspection process stops, so repairs can be made on the spot and re-inspection can be performed immediately, which is more efficient than transporting the gaming machine 51 to another location for repairs, etc.

[0050] Furthermore, an opening 44 is formed in the support plate 43 of the installation stand 42, and an inspection worker can access the gaming machine 51 through the opening 44, so that repairs can sometimes be performed with the gaming machine 51 standing on the installation stand 42, improving the ease of repair work.

[0051] When the inspection is restarted, it is possible to return to the series of processes related to the first camera with a single action. No matter what stage the inspection is stopped at, it is possible to resume by returning to the series of processes related to the first camera. Therefore, even if new non-conformities, inadequacies, or defects arise due to parts being out of position due to repair work, they can be inspected again, ensuring high inspection accuracy.

[0052] In the above description, an installation stand for installing the gaming machine vertically (perpendicularly) has been described. However, the installation stand may have a structure for installing the gaming machine horizontally. This installation stand 46 has a rectangular base 48 that is the same as or slightly larger than the gaming machine 51, and four legs 47 are vertically erected at the four corners of the base 48. The gaming machine 51 is supported horizontally on the legs 47 with its surface facing downward. A rectangular opening 49 is opened in the center of the base 48. The surface of the gaming machine 51 supported horizontally on the legs 47 is exposed downward through the opening 49.

[0053] The present invention is not limited to the above-mentioned embodiment, and various modifications can be made in the implementation stage without departing from the gist of the invention. The embodiments may be implemented in appropriate combination, and in that case, the combined effect can be obtained. Furthermore, the above-mentioned embodiment includes various inventions, and various inventions can be extracted by combinations selected from the multiple constituent elements disclosed. For example, if the problem can be solved and the effect can be obtained even if some constituent elements are deleted from all the constituent elements shown in the embodiment, the configuration from which the constituent elements are deleted can be extracted as an invention. [Explanation of symbols]

[0054] 1...inspection device, 10...information processing device, 11...processor, 12...RAM, 13...ROM, 14...storage device, 15...input device, 16...display, 17...interface (I / F), 19...data / control bus, 21...first camera, 22...second camera, 23...third camera, 31...articulated robot device, 33...inspection switch, 35...inspection lamp, 101...control unit, 102...inspection sequence control unit, 103...storage management unit, 104...first judgment unit, 105...second judgment unit, 106...third judgment unit, 107...display control unit, 121...first camera controller, 122...second camera controller, 123...third camera controller, 131...robot controller 131...switch detection unit, 135...lamp driver.

Claims

1. An inspection device that performs inspection of an inspected product, A plurality of cameras for capturing images of the product to be inspected; a determination unit that determines whether the inspected product is correct or not with respect to a plurality of inspection items based on the images captured by each of the plurality of cameras; A display unit that displays a result of the determination by the determination unit; a sequence control unit that executes a series of processes related to capturing images by each of the plurality of cameras, making a judgment by the judgment unit based on the images captured by each of the plurality of cameras, and displaying a result of the judgment by the judgment unit in a predetermined order, and when the result of the judgment is "false", stops the series of processes at that point without proceeding to the next series of processes and resumes the series of processes from the initial series of processes; The display unit has a display and an inspection lamp, the display displays the determination results of the plurality of test items; The inspection device, wherein the inspection lamp lights up in "red" when at least one of the inspection items is incorrect, and lights up in "blue" when all of the inspection items are correct.

2. 2. The inspection device according to claim 1, wherein the plurality of cameras comprises a first camera for imaging the product to be inspected from the front side, a second camera for imaging the product to be inspected from the back side, and a third camera for imaging the product to be inspected up close.

3. the determination unit performs a determination of the presence or absence of a component mounted on the inspected product, a mounting state of the component, and a position of the component based on the images captured by the first camera, the second camera, and the third camera, 3. The inspection device according to claim 2, wherein the sequence control unit sequentially executes a first series of processes relating to imaging by the first camera, a judgment by the judgment unit based on the image captured by the first camera, and a display of a result of the judgment, a second series of processes relating to imaging by the second camera, imaging by the second camera, a judgment by the judgment unit based on the image captured by the second camera, and a display of the result of the judgment by the judgment unit, and a third series of processes relating to imaging by the third camera, a judgment by the judgment unit based on the image captured by the third camera, and a display of the result of the judgment by the judgment unit, and when any of the judgment results in the first to third series of processes is "incorrect", stops the processes at that point without proceeding to a next series of processes, and resumes from the initial series of processes.

4. An inspection apparatus as described in claim 1, further comprising a mounting stand for supporting and standing the inspected product at its bottom so that the front and back surfaces of the inspected product can be imaged without interference.

5. The inspection apparatus according to claim 1, further comprising a mounting table that supports the product to be inspected horizontally with its back surface facing upward and its front surface facing downward so that the front and back surfaces of the product can be imaged without interference, and that has an opening on the front surface side of the product to be inspected.

6. 3. The inspection apparatus according to claim 2, further comprising an articulated robot device having the third camera attached to the tip of an arm thereof.

7. A computer that controls the operation of an inspection device that includes a plurality of cameras that capture images of an item to be inspected, a judgment unit that judges whether the item to be inspected is correct or not based on images captured by each of the plurality of cameras, a display unit that displays the results of the judgment made by the judgment unit, an operation switch that instructs the start of inspection, a display, and an inspection lamp, a means for causing, in response to an operation of the operation switch, to execute, in a predetermined order, a series of processes relating to capturing images by each of the plurality of cameras, making a judgment by the judgment unit based on the images captured by each of the plurality of cameras, and displaying a result of the judgment by the judgment unit; a means for stopping the process without proceeding to the next series of processes when the result of the judgment is "false" and restarting the process from the first series of processes; A program for causing the display to display the judgment results of the multiple test items, and for causing the test lamp to light up in "red" when at least one of the test items is incorrect, and to light up in "blue" when all of the test items are correct.

Images