JP5466606B2 - Spray painting simulation system - Google Patents

Description

  The present invention relates to a spray coating simulation system that simulates spray coating on a three-dimensional workpiece.

  Conventionally, as a spray coating simulation system that simulates spray coating on a three-dimensional object, a light irradiation simulation is performed after the relationship between the paint nozzle and the object is replaced with the relationship between the light source and the irradiated object. There is.

  This conventional spray coating simulation system matches the three-dimensional shape of the object to be coated, the light source model that mathematically approximates the characteristics of the paint nozzle, and the observation image conditions together with the coating conditions to the input format of the three-dimensional graphics device. By changing the format using the format conversion device and then inputting it to the three-dimensional graphics device, the application state of the object to be coated is output as a three-dimensional image (for example, a patent) Reference 1).

JP-A-5-324798

  However, in the conventional technology as described above, spray coating is simulated by replacing the relationship between the paint nozzle and the object to be coated with the relationship between the light source and the object to be irradiated. There was a problem that spray coating corresponding to various paint nozzles could not be simulated.

  The present invention has been made to solve such a conventional problem, and is a spray coating simulation system capable of simulating spray coating corresponding to various paint nozzles having different spray pressures and spreads of the paint. The purpose is to provide.

  The spray coating simulation system of the present invention is a spray coating simulation system for simulating spray coating on a three-dimensional object, a three-dimensional display device for displaying a three-dimensional image, and the three-dimensional image The three-dimensional visual recognition device worn by the user for visually confirming the object to be coated, and the three-dimensional image representing the object to be coated viewed from the position and orientation of the three-dimensional visual recognition device are displayed. A display control device for controlling a three-dimensional display device; and a pseudo coating device for pseudo-coating the object to be coated, wherein the display control device is an application port of a coating device simulated by the pseudo coating device. An application pattern representing the distribution of the paint when the paint is applied perpendicularly to a plane at a predetermined reference position from the pseudo-coating device is stored for the paint nozzle attached to A pattern information storage unit, a nozzle selection unit for selecting the paint nozzle, and a three-dimensional image generation unit for generating a three-dimensional image representing the object to be coated viewed from the position and orientation of the three-dimensional visual recognition device, The three-dimensional image generation unit includes a paint nozzle selected by the nozzle selection unit and a time during which the pseudo coating is performed while the pseudo coating is being performed by the pseudo coating apparatus. Corresponding to the application pattern stored in the pattern information storage unit and the position and orientation of the pseudo-coating device to generate the three-dimensional image to represent the object to be coated Have.

  With this configuration, the spray coating simulation system of the present invention stores the paint nozzle and the application pattern in correspondence with each other, and simulates the spray coating based on the application pattern corresponding to the selected paint nozzle. It is possible to simulate spray coating corresponding to various paint nozzles having different spray pressures and spreads.

  The application pattern may be constituted by a distribution of paint thickness in the horizontal direction of the pseudo coating apparatus and a distribution of thickness of paint in the vertical direction of the pseudo coating apparatus.

  With this configuration, the spray coating simulation system of the present invention adjusts the distribution of the paint thickness in the horizontal direction of the pseudo-coating apparatus and the distribution of the thickness of the paint in the vertical direction of the pseudo-coating apparatus. Various paint nozzle application patterns with different pressures and spreads can be set.

  The three-dimensional image generation unit may color the object to be coated represented by the three-dimensional image with a density corresponding to the accumulated thickness distribution of the paint.

  With this configuration, the spray coating simulation system of the present invention can express the thickness of the paint applied to the object to be painted with the shade of the color colored on the object represented by the three-dimensional image.

  Further, the three-dimensional image generation unit may color the object to be coated represented by the three-dimensional image with a color scheme corresponding to the accumulated distribution of paint thicknesses.

  With this configuration, the spray coating simulation system of the present invention can express the thickness of the paint applied to the object to be coated with the color colored on the object to be represented which the three-dimensional image represents.

  Further, the three-dimensional image generation unit may generate an image representing a developed view of the object to be developed and a reference development view of the object to be coated appropriately.

  With this configuration, the spray coating simulation system of the present invention can visually evaluate the coating on the object to be coated.

  The present invention can provide a spray coating simulation system capable of simulating spray coating corresponding to various paint nozzles having different spray pressures and spreads of paint.

It is a block diagram which shows the structure of the spray coating simulation system which concerns on one embodiment of this invention. It is a hardware block diagram of the display control apparatus which comprises the spray coating simulation system which concerns on one embodiment of this invention. It is a functional block diagram of the display control apparatus which comprises the spray coating simulation system which concerns on one embodiment of this invention. It is a conceptual diagram which shows the correspondence of the coating material nozzle referred by the display control apparatus which comprises the spray coating simulation system which concerns on one embodiment of this invention, and an application pattern. It is a conceptual diagram which shows the coating pattern referred by the display control apparatus which comprises the spray coating simulation system which concerns on one embodiment of this invention. It is a conceptual diagram which shows the to-be-coated object which the three-dimensional image produced | generated by the display control apparatus which comprises the spray coating simulation system which concerns on one embodiment of this invention represents. It is a conceptual diagram for demonstrating the coating with respect to the to-be-coated object which the three-dimensional image produced | generated by the display control apparatus which comprises the spray coating simulation system which concerns on one embodiment of this invention. It is a flowchart which shows operation | movement of the display control apparatus which comprises the spray coating simulation system which concerns on one embodiment of this invention. It is a conceptual diagram which shows the other image produced | generated by the display control apparatus which comprises the spray coating simulation system which concerns on one embodiment of this invention.

  Hereinafter, a spray coating simulation system according to an embodiment of the present invention will be described with reference to the drawings.

  As shown in FIG. 1, a spray coating simulation system 1 according to an embodiment of the present invention includes a three-dimensional display device 10 for displaying a three-dimensional image and a three-dimensional object to be represented by the three-dimensional image. The 3D display device 10 is controlled so as to display a 3D image display device 11 that is worn by the user for visual recognition and a 3D image representing the object viewed from the position and orientation of the 3D image recognition device 11. A display control device 12 for performing the above-mentioned and a pseudo-coating device 13 for pseudo-coating the article to be coated.

  The three-dimensional display device 10 includes projectors 10a and 10b for illuminating left-eye and right-eye images, respectively, and a transmissive screen 10c. The lenses of the projectors 10a and 10b are each equipped with a circularly polarizing filter for circularly polarizing around different points. Here, the positions and orientations of the projectors 10 a and 10 b and the transmissive screen 10 c are assumed to be known in the spray coating simulation system 1.

  The three-dimensional visual recognition device 11 is composed of polarized glasses provided with circular polarization filters so that the left-eye image and the right-eye image circularly polarized by the three-dimensional display device 10 can be seen by the left and right eyes, respectively. Yes.

  The three-dimensional visual recognition device 11 is provided with a sensor 20 that detects its position and posture. The sensor 20 includes an ultrasonic sensor and a gyro. Therefore, in the present embodiment, the spray coating simulation system 1 includes three ultrasonic generators 21a to 21c each having three ultrasonic generation sources that emit ultrasonic waves.

  The ultrasonic generators 21a to 21c are provided at the left end, the right end, and the upper end of the transmissive screen 10c, respectively. However, if these installation positions are known in the spray coating simulation system 1, Is optional.

  Further, in FIG. 1, three ultrasonic generators 21a to 21c are shown. However, the spray coating simulation system 1 may include more ultrasonic generators. Moreover, each ultrasonic generator 21a thru | or 21c should just have at least 1 ultrasonic generation source.

  The spray coating simulation system 1 calculates the position of the sensor 20 by controlling the ultrasonic generators 21a to 21c, acquires the posture of the sensor 20, and sends the position and posture of the sensor 20 to the display control device 12. A tracking controller 22 for transmission is provided. That is, the tracking controller 22 transmits the position and orientation of the three-dimensional viewing device 11 to the display control device 12.

  For example, as shown in FIG. 2, the display control device 12 includes a CPU (Central Processing Unit) 30, a RAM (Random Access Memory) 31, a ROM (Read Only Memory) 32, a hard disk device 33, a keyboard device, By a general computer device including an input device 34 including a pointing device, a display device 35, an external device such as the three-dimensional display device 10 and the tracking controller 22, and an input / output port 36 for communicating with various sensors. It is configured.

  The ROM 32 and the hard disk device 33 store a program for causing the computer device to function as the display control device 12. That is, when the CPU 30 executes a program stored in the ROM 32 or the hard disk device 33 using the RAM 31 as a work area, the computer device functions as the display control device 12.

  In FIG. 1, the pseudo coating apparatus 13 is configured by, for example, a coating spray that is actually used for spray coating. This paint spray is used without being refilled so as not to actually spray the paint.

  The pseudo coating apparatus 13 is provided with a sensor 23 that detects its position and posture. The sensor 23 has an ultrasonic sensor and a gyro. The tracking controller 22 calculates the position of the sensor 23 by controlling the ultrasonic generators 21a to 21c, acquires the attitude of the sensor 23, and transmits the position and attitude of the sensor 23 to the display control device 12. It has become. That is, the tracking controller 22 is configured to transmit the position and posture of the pseudo coating device 13 to the display control device 12.

  In addition, the pseudo coating apparatus 13 is provided with a sensor 24 that detects the start and end of pseudo coating. The sensor 24 outputs a signal indicating the start and end of pseudo painting to the display control device 12.

  As shown in FIG. 3, the display control device 12 is placed on a plane at a reference position determined in advance from the pseudo coating device 13 with respect to the coating nozzle attached to the coating port of the coating device simulated by the pseudo coating device 13. A pattern information storage unit 40 for storing an application pattern representing the distribution of paint thickness when the paint is applied vertically, a nozzle selection unit 41 for selecting a paint nozzle, and a target for displaying a three-dimensional object to be coated. It has the to-be-coated material information storage part 42 which stores coating material information, and the three-dimensional image generation part 43 which produces | generates the three-dimensional image showing to-be-coated material.

  The pattern information storage unit 40 is configured by the hard disk device 33, and is perpendicular to a paint nozzle that is attached to the coating port of the coating device simulated by the pseudo coating device 13, and a plane that is at a predetermined reference position from the pseudo coating device 13. The coating pattern representing the distribution of the coating thickness when the coating is applied is stored in correspondence with the coating pattern.

  For example, as shown in FIG. 4, in the pattern information storage unit 40, the product number of the paint nozzle and the application pattern are stored correspondingly. In the present embodiment, as shown in FIG. 5, the coating pattern is configured by a horizontal paint thickness distribution 50 of the pseudo coating apparatus 13 and a vertical paint thickness distribution 51 of the pseudo coating apparatus 13. Has been.

  In FIG. 3, the nozzle selection unit 41 includes a CPU 30, an input device 34, and a display device 35. The nozzle selection unit 41 displays a list of product numbers of paint nozzles stored in the pattern information storage unit 40 on the display device 35. The product number of one paint nozzle is selected via the input device 34 from the list of product numbers of paint nozzles displayed in FIG.

  The nozzle selection unit 41 may be configured by the CPU 30, the pseudo coating device 13, and the three-dimensional display device 10. In other words, the nozzle selection unit 41 displays a list of product numbers of paint nozzles stored in the pattern information storage unit 40 on the 3D display device 10 and a list of product numbers of paint nozzles displayed on the 3D display device 10. From the above, the product number of one paint nozzle may be selected using the pseudo coating device 13.

  The article information storage unit 42 includes a hard disk device 33, and the article information storage unit 42 stores article information for three-dimensionally displaying at least one article to be coated. In the present embodiment, the object information includes a set of three-dimensional coordinates for reproducing the object.

  The display control device 12 causes the display device 35 to display a list of images representing the object information stored in the object information storage unit 42, and the input device 34 from the image list displayed on the display device 35. You may make it select the image corresponding to one to-be-coated object information via.

  Further, the display control device 12 displays a list of images representing the object information stored in the object information storage unit 42 on the three-dimensional display device 10 and displays a list of images displayed on the three-dimensional display device 10. Alternatively, an image corresponding to one piece of object information may be selected using the pseudo coating apparatus 13.

  The three-dimensional image generation unit 43 is configured by the CPU 30 and is based on the position and orientation of the three-dimensional visual recognition device 11 detected by the sensor 20 and the object information stored in the object information storage unit 42. A three-dimensional image in which the object to be coated as shown in FIG. 6 is viewed from the position and orientation of the three-dimensional visual recognition device 11 is generated.

  Here, the three-dimensional image is composed of an image for the left eye and an image for the right eye, and the three-dimensional image generation unit 43 outputs each image to the projectors 10a and 10b via the input / output port 36, respectively. It has become.

  In addition, the three-dimensional image generation unit 43 includes a time during which the pseudo painting is performed while the sensor 24 detects that the pseudo painting is being performed by the pseudo coating apparatus 13, and a nozzle selection unit. Based on the application pattern stored in the pattern information storage unit 40 corresponding to the paint nozzle selected by 41 and the position and orientation of the pseudo coating apparatus 13 detected by the sensor 23, the object 60 is simulated. It is designed to be painted.

  Specifically, as illustrated in FIG. 7, the three-dimensional image generation unit 43 projects the application pattern at the reference position onto the object 60 from the position and orientation of the pseudo coating apparatus 13 detected by the sensor 23. The object 60 is applied in a pseudo manner.

  For example, the three-dimensional image generation unit 43 projects the distance D between the position of the pseudo coating apparatus 13 detected by the sensor 23 and the reference position, and the position of the pseudo coating apparatus 13 detected by the sensor 23 and the application pattern. Based on the distance d between each pixel position of the object 60 to be coated, the size of the coating pattern is enlarged by d / D times, and applied to the corresponding pixel among the pixels of the enlarged coating pattern. By calculating the thickness of the paint and accumulating the calculated thickness of the paint for each pixel, the object to be coated 60 is applied in a pseudo manner.

  The three-dimensional image generation unit 43 may color the object 60 with a density corresponding to the accumulated distribution of paint thickness, or may be applied with a color scheme according to the accumulated distribution of paint thickness. The object 60 may be colored.

  Here, when the three-dimensional image generation unit 43 colors the object 60 with a color scheme according to the distribution of the paint thickness, the three-dimensional image generation unit 43 classifies the paint thickness step by step. For example, white, yellow, green, and blue are used for each stage.

  As described above, the three-dimensional image generation unit 43 generates a three-dimensional image when the painted object 60 is viewed from the three-dimensional visual recognition device 11.

  The operation of the display control device 12 configured as described above will be described with reference to the flowchart shown in FIG.

  First, the three-dimensional image generation unit 43 determines whether or not the pseudo painting is performed by the pseudo painting device 13 (step S1).

  Here, when it is determined that the pseudo painting is performed, the application pattern corresponding to the paint nozzle selected by the nozzle selection unit 41 by the three-dimensional image generation unit 43 and the pseudo coating device 13 Based on the position and orientation, the object to be coated represented by the three-dimensional image is artificially painted (step S2).

  On the other hand, when it is determined that the pseudo painting is not performed, or when the process in step S2 is completed, the object to be coated is three-dimensionally visible based on the position and orientation of the three-dimensional visual recognition device 11. A three-dimensional image viewed from the device 11 is generated by the three-dimensional image generation unit 43 (step S3), and the generated three-dimensional image is output to the three-dimensional display device 10 (step S4).

  Here, when the stop of the simulation is instructed via the input device 34 or the like, the operation of the display control device 12 ends. When the stop of the simulation is not instructed, the display control device 12 The operation returns to step S1 (step S5).

  As described above, the spray coating simulation system 1 according to the embodiment of the present invention stores the paint nozzle and the application pattern in association with each other, and based on the application pattern corresponding to the selected paint nozzle, In order to simulate spray coating, it is possible to simulate spray coating corresponding to various paint nozzles having different spray pressures and spreads of paint.

  In addition, after the stop of the simulation, the developed object information stored in the coated object information storage unit 42 includes a developed view of the developed object and a reference developed view of the appropriately painted object. As shown in FIG. 9, the three-dimensional image generation unit 43 three-dimensionally develops a development diagram 70 in which a pseudo-painted object is developed and a reference development diagram 71 of an appropriately painted object. You may make it display on the display apparatus 10 or the display apparatus 35. FIG.

  By configuring in this way, the display control device 12 can visually evaluate the coating on the object to be coated. Further, the display control device 12 can evaluate the painting on the object by numerical values by comparing the corresponding pixels in the development 70 and the reference development 71.

  In the present embodiment, the example in which the three-dimensional display device 10 is configured by the projectors 10a and 10b and the transmissive screen 10c has been described. However, in the present invention, the three-dimensional display device 10 is a three-dimensional display. For example, a large display device having a three-dimensional screen may be used. In this case, the configuration of the three-dimensional viewing device 11 is appropriately changed depending on the configuration of the three-dimensional display device 10.

  In the present embodiment, the example in which the sensor 20 that detects the position and orientation of the three-dimensional visual recognition device 11 is configured by an ultrasonic sensor and a gyro has been described. However, the spray coating simulation system according to the present invention has a motion capture function. The position and orientation of the three-dimensional viewing device 11 may be detected in other manners such as the above.

  Further, in the present embodiment, the example in which the sensor 23 for detecting the position and orientation of the pseudo coating apparatus 13 is configured by an ultrasonic sensor and a gyro has been described. However, the spray coating simulation system of the present invention uses a motion capture or the like. You may make it detect the position and attitude | position of the pseudo | simulation coating apparatus 13 in another aspect.

  The spray coating simulation system of the present invention can be used as a simulator for simulating spray coating on a three-dimensional object such as a ship or part of an aircraft.

DESCRIPTION OF SYMBOLS 1 Spray coating simulation system 10 3D display apparatus 10a, 10b Projector 10c Transmissive screen 11 3D visual recognition apparatus 12 Display control apparatus 13 Pseudo coating apparatus 20, 23, 24 Sensor 21a-21c Ultrasonic generator 22 Tracking controller 30 CPU
31 RAM
32 ROM
33 hard disk device 34 input device 35 display device 36 input / output port 40 pattern information storage unit 41 nozzle selection unit 42 article information storage unit 43 three-dimensional image generation unit

Claims (5)

In a spray coating simulation system that simulates spray coating on a three-dimensional workpiece,
A three-dimensional display device for displaying a three-dimensional image;
A three-dimensional visual recognition device worn by a user in order to visually recognize an object to be coated represented by the three-dimensional image in three dimensions;
A display control device for controlling the three-dimensional display device so as to display a three-dimensional image representing the object to be coated viewed from the position and orientation of the three-dimensional visual recognition device;
A pseudo-coating device for pseudo-coating the article to be coated,
The display control device includes:
The distribution of the paint when the paint is applied perpendicularly to a plane at a predetermined reference position from the pseudo paint apparatus to the paint nozzle attached to the application port of the paint apparatus simulated by the pseudo paint apparatus. A pattern information storage unit for storing application patterns;
A nozzle selection unit from which the paint nozzle is selected;
A three-dimensional image generation unit that generates a three-dimensional image representing the object to be coated viewed from the position and orientation of the three-dimensional visual recognition device;
The three-dimensional image generation unit corresponds to the time during which the pseudo painting is performed while the pseudo painting is performed by the pseudo coating apparatus, and the paint nozzle selected by the nozzle selection unit. The three-dimensional image is generated so as to represent the painted object based on the application pattern stored in the pattern information storage unit and the position and orientation of the pseudo coating apparatus. Spray painting simulation system.   The said application | coating pattern is comprised by the distribution of the thickness of the coating material of the horizontal direction of the said pseudo coating device, and the distribution of the thickness of the coating material of the vertical direction of the said pseudo coating device. Spray painting simulation system.   3. The spray coating according to claim 1, wherein the three-dimensional image generation unit colors an object to be coated that is represented by the three-dimensional image with a density corresponding to a distribution of accumulated paint thicknesses. 4. Simulated system.   3. The spray coating simulation according to claim 1, wherein the three-dimensional image generation unit colors an object to be coated represented by the three-dimensional image with a color scheme corresponding to a distribution of accumulated paint thicknesses. System.   The three-dimensional image generation unit generates an image representing a developed view of the object to be developed and a reference developed view of the object to be coated appropriately, respectively. Item 5. The spray coating simulation system according to any one of Items 4 to 6.