JP7340398B2 - Onboard data creation method and onboard data creation device - Google Patents

Description

The present disclosure relates to a method for creating onboard data and an onboard data creating device.

Conventionally, as a method for creating mounting data for mounting a component, a method for creating mounting data described in, for example, Japanese Patent Laid-Open No. 9-190531 (Patent Document 1 below) is known. This mounting data creation method involves displaying the board on a screen based on image data read by an image scanner, and displaying necessary land data such as the shape, size, center position, etc. of each land on the board on this display screen. Obtained through recognition processing. Next, mounting component data is created by searching and selecting a component corresponding to this land data from the component library. Next, for each selected component, mounting position data in which the center position of the component matches the center position of the corresponding land is created by data processing.

Further, as a mounting data creation method other than the following Patent Document 1, for example, a mounting data creation method described in Japanese Patent Application Laid-Open No. 9-307296 (Patent Document 2 below) is known. In this mounting data creation method, foot patterns, positioning marks, ID characters, etc. are extracted from the board image as effective image parts, and the extracted effective image parts are used together with the corresponding component mounting coordinates of the board. It is searched to see if it is registered in the stored database. If a valid image area can be searched, the component mounting coordinates of the board corresponding to the valid image area are output as mounting data, while if not found, the valid image area is used as the component mounting coordinate of the board related to it. Index it along with the coordinates and register it in the database. Therefore, when a valid image portion is registered, the component mounting coordinates of the corresponding board are output as mounting data, so it is possible to automate the creation of mounting data.

Japanese Patent Application Publication No. 9-190531 Japanese Patent Application Publication No. 9-307296

However, in Patent Document 1, a component corresponding to land data is searched from a component library based on the shape, size, etc. of the component, so it is not always possible to select the correct component. For example, if there are different parts with the same shape and size, the correct part cannot be selected. Furthermore, in Patent Document 2, if the valid image part of the board image and the corresponding component mounting coordinates are registered in the database, the valid image part can be searched and output as mounting data. , if it is not registered in the database, a valid image portion cannot be searched and mounting data cannot be output. Therefore, in both of Patent Documents 1 and 2, there is a problem that accurate mounting data cannot be easily created.

The mounting data creation method of the present disclosure includes a mounting information creation step of creating mounting information that links identification information displayed around a pattern in which a component is mounted and a part number of a component to be mounted in the pattern. , a part data creation step of creating part data including shape information of the part; an image acquisition step of acquiring an image by imaging a subject including the pattern and the identification information; and acquiring the identification information from the image. Then, the part number linked to the acquired identification information is searched from the mounting information, a defined shape of the part corresponding to the searched part number is created from the part data, and the defined shape of the created part is a search step of searching for the pattern that can be mounted around the identification information in the image; and calculating the mounting coordinates of the component by superimposing the defined shape of the component and the pattern of the image. The method of creating mounting data includes a setting step of setting the mounting coordinates as mounting coordinates of the mounting information.

According to the present disclosure, even without CAD data of mounting coordinates, accurate mounting data can be easily created without depending on the skill of the operator.

FIG. 1 is a block diagram showing the electrical configuration of the on-board data creation device. FIG. 2 is a plan view of the substrate. FIG. 3 is a flowchart showing the procedure of the method for creating on-board data. FIG. 4 is an example of a screen showing the visual editor. FIG. 5 is an example of a screen showing the parts library. FIG. 6 is an overall view of the mounting data creation device showing how the board is imaged.

[Description of embodiments of the present disclosure]
First, embodiments of the present disclosure will be listed and described.
(1) The mounting data creation method of the present disclosure creates mounting information that links identification information displayed around a pattern in which a component is mounted and a part number of a component to be mounted in the pattern. a creation step, a part data creation step of creating part data including shape information of the part, an image acquisition step of acquiring an image by imaging a subject including the pattern and the identification information, and a part data creation step of creating part data including shape information of the part, an image acquisition step of acquiring an image by capturing an image of a subject including the pattern and the identification information, and identifying the part from the image. information is acquired, the part number linked to the acquired identification information is searched from the mounting data, a defined shape of the part corresponding to the searched part number is created from the part data, and the part number that is created is a search step of searching for the pattern in which the defined shape can be mounted around the identification information in the image; and calculating mounting coordinates of the component by superimposing the defined shape of the part and the pattern of the image. , a setting step of setting the calculated mounting coordinates as mounting coordinates of the mounting information.

A pattern in the present disclosure refers to a land on which a component is mounted in a circuit that constitutes a board. A pattern may consist of one land or multiple lands.
Since the identification information and part number are linked, when searching for a pattern from an image, you only need to search around the identification information, and by superimposing the defined shape of the part and the pattern in the image, you can calculate the mounting coordinates of the part. , if multiple identical patterns exist, the correct mounting coordinates can be automatically narrowed down. Therefore, even if there is no CAD data of the mounting coordinates, accurate mounting data can be easily created without depending on the skill of the operator.

(2) Preferably, the identification information is a silk name printed on the surface of the substrate as the subject.
Mounting data can be created using the silk name printed on the board.

(3) If there are a plurality of mounting coordinates at which the component can be mounted, it is preferable to have the operator select the correct mounting coordinate.
If automatic narrowing down is not possible, operator work is required, but this work can be simplified.

(4) The mounting data creation device of the present disclosure creates mounting information that links identification information displayed around a pattern in which a component is mounted and a part number of a component to be mounted in the pattern. a part data creation part that creates part data including shape information of the part; an image acquisition part that obtains an image by imaging a subject including the pattern and the identification information; and an image acquisition part that obtains an image from the image with the identification information. , search the mounting information for the part number linked to the obtained identification information, create a defined shape of the part corresponding to the searched part number from the part data, and create a definition of the created part. a search unit that searches for the pattern in which the shape can be mounted around the identification information in the image, and calculates the mounting coordinates of the component by superimposing the defined shape of the component and the pattern of the image; The mounting data creation device may include a setting unit that sets the calculated mounting coordinates as the mounting coordinates of the mounting information.

[Details of embodiments of the present disclosure]
A specific example of the method for creating onboard data according to the present disclosure will be described below with reference to the drawings. Note that the present disclosure is not limited to these examples, but is indicated by the scope of the claims, and is intended to include all changes within the meaning and range equivalent to the scope of the claims.

The onboard data creation method of the present disclosure can be realized, for example, by the onboard data creation device 10 shown in FIG. This disclosure exemplifies a method for creating mounting data used to mount components 60 such as ICs, resistors, capacitors, etc. on board B shown in FIG. 2.

The board B has a plurality of patterns P, and if the CAD data of the board B can be obtained, the position data of the patterns P can be obtained from the CAD data. However, if the CAD data of the board B cannot be obtained, the position data of the pattern P cannot be obtained. Therefore, it is necessary to grasp the position of the pattern P using the board B itself and create mounting data. In such cases, the onboard data creation method of the present disclosure is useful.

As shown in FIG. 6, the onboard data creation device 10 includes a monitor 20, a personal computer (hereinafter referred to as "PC") 30, a keyboard 40, and a scanner 50. The monitor 20 includes a display section 23 that displays a board editor 21 shown in FIG. 4, component data 22 shown in FIG. 5, and the like. The keyboard 40 includes an input section 41 for inputting information necessary for the PC 30.

As shown in FIG. 6, the scanner 50 includes an imaging section 51, an image output section 52, and a stage 53. Although the imaging unit 51 is capable of imaging a part of the substrate B within the range of the field of view 54, it is also possible to image the entire substrate B by performing imaging while moving the stage 53 in the arrow direction. There is. The position of the stage 53 and the substrate B shown by the two-dot chain line is the movement start position, and the position of the stage 53 and the substrate B shown by the solid line is the movement end position.

As shown in FIG. 1, the PC 30 includes an arithmetic processing section 31, an image processing section 32, and a storage section 33. The imaging unit 51 includes an image sensor such as a CCD or CMOS. Light entering from the lens of the imaging section 51 is converted into an image signal by the image sensor, and the signal is captured from the image output section 52 into the storage section 33 of the PC 30 and stored. The image signal stored in the storage section 33 is sent to the image processing section 32, and the image processing section 32 generates an image based on the image signal. In the present disclosure, the imaging unit 51 of the scanner 50 captures an image of the substrate B, and the image processing unit 32 of the PC 30 acquires a substrate image B1 of the substrate B.

The board editor 21 shown in FIG. 4 includes a board display section 211 that displays a board image B1 as an entire image of the board B, an enlarged display section 212 that enlarges and displays a part of the board B, and mounting information 213. Component information 214 is provided. The enlarged display section 212 displays a square outline 215 representing the outline of the pattern P corresponding to the silk name S printed as IC2 on the surface of the board B, and a center point 216 of the outline 215. has been done.

The mounting information 213 includes items such as NO, silk name, mounting coordinates 217, part number 218, part thickness, and nozzle used, and the silk name S is displayed in the silk name column. In FIG. 4, loading information No. In the row 212, the silk name S "IC2" and the part number "56" are displayed as an example.

The parts information 214 includes items such as a part number 218 and a part name. In FIG. 4, "XYZ" is displayed as the part name of "56", which is the part number 214, as an example.

The component data 22 shown in FIG. 5 includes a component name 221, shape information 222 of the component 60, and packaging information 223. The shape information 222 displays the external dimensions of the component 60, the body size of the component 60, and the like. The component image 225 is an entire image of the component 60. A defined shape 226 of the component 60 is generated based on the component image 225.

The defined shape 226 of the component 60 is, for example, the dashed-dotted line portion displayed on the enlarged display section 212 in FIG. 4, and the reference numeral 227 indicates the center point of the defined shape 226. The arithmetic processing unit 31 moves the center point 227 of the defined shape 226 of the component 60 closer to the center point 216 of the outer line 215 of the pattern P and overlays the defined shape 226 and the outer line 215 to determine the mounting position of the component 60. The coordinates of the center point 227 of the defined shape 226 at the mounting position are calculated as the mounting coordinates.

Next, a method for creating mounting data will be described with reference to the flowchart in FIG. 3. First, based on information (BOM) on which component 60 is to be mounted in which pattern P, mounting information 213 is created in which the silk name S and the part number 218 of the component 60 to be mounted are linked (step S10).

Next, component data 22 such as shape information 222 such as the shape and dimensions of each component 60 to be mounted and a component image 225 of each component 60 is created by inputting data into the PC 30 using the keyboard 40 (step S20). Next, a substrate B such as a sample substrate is imaged by the scanner 50 and image processed to create a substrate image B1, and this substrate image B1 is displayed on the substrate display section 211 of the monitor 20 (step S30). Next, the first row of the mounting information 213 is selected using a touch panel, a mouse, or the like (step S40).

Next, when the board image B1 is captured, OCR processing is performed to recognize characters in all the silk name S parts. Next, the silk name S written in the first row is searched from the board image B1 (step S50), and the pattern P located around the searched silk name S is displayed on the enlarged display section 212.

Next, a defined shape 226 of the component 60 corresponding to the component number 218 linked to the silk name S is created from the component data 22 such as the shape information 222 and the component image 225. Next, a pattern P on which the defined shape 226 of the component 60 can be mounted is searched around the silk name S found above in the board image B1 (step S60). Next, the defined shape 226 of the component 60 and the outline 215 of the pattern P of the board B are superimposed, and all candidates for the mounting coordinates 217 are calculated (step S70).

If there is one mounting coordinate candidate (YES in step S80), the calculated mounting coordinate 217 is set as the mounting coordinate 217 of the mounting information 213 (step S90). On the other hand, if there are not one but two or more candidates for the mounting coordinate 217 (NO in step S80), all candidates are displayed on the monitor 20 and the operator is prompted to select the correct mounting coordinate 217 (step S100). Next, the selected mounting coordinates 217 are set as the mounting coordinates 217 of the mounting information 213 (step S110).

When the settings are completed up to the last line of the loading information 213 (YES in step S120), the creation of loading data is completed, and if the settings are not completed up to the last line (NO in step S120), the loading information 213 in the next line is completed. is selected (step S130), and the process returns to step S50 to search for the silk name S in the next line from the board image B1. As described above, according to the present disclosure, mounting data can be created from the board B even if there is no CAD data for the board B such as a sample board.

As described above, according to the installation data creation method of the present disclosure, since the identification information and the part number 218 are linked, when searching for the pattern P from the image, it is only necessary to search around the identification information, and the parts 60. The mounting coordinates of the component 60 can be calculated by superimposing the defined shape and the image pattern P, and if a plurality of the same patterns P exist, the correct mounting coordinates can be automatically narrowed down. Therefore, even if there is no CAD data of the mounting coordinates, accurate mounting data can be easily created without depending on the skill of the operator.

Further, since the identification information is the silk name S printed on the surface of the substrate B as the subject, the mounting data can be created using the silk name S.

Furthermore, if there are multiple mounting coordinates at which the component 60 can be mounted, the operator may be made to select the correct mounting coordinate. By doing so, if automatic narrowing down is not possible, operator work is required, but this work can be simplified.

The mounting data creation device 10 of the present disclosure creates mounting information 213 that links the silk name S displayed around the pattern P on which the component 60 is mounted and the part number 218 of the component 60 mounted on the pattern P. a mounting information creation unit that creates component data 22 that includes shape information of the component 60; and an image acquisition unit that acquires a board image B1 by capturing an image of the board B that includes the pattern P and the silk name S. Then, the silk name S is obtained from the board image B1, the part number 218 linked to the obtained silk name S is searched from the mounting information 213, and the defined shape of the part 60 corresponding to the searched part number 218 is obtained from the part data 22. A search section searches for a pattern P on which the defined shape of the created component 60 can be mounted around the silk name S in the board image B1, and overlaps the defined shape of the component 60 with the pattern P of the board image B1. The mounting data creation device 10 may include a setting unit that calculates the mounting coordinates 217 of the component 60 by combining the mounting coordinates 217 and sets the calculated mounting coordinates 217 as the mounting coordinates 217 of the mounting information 213.

<Other embodiments>
(1) In the above embodiment, the board image B1 is obtained by imaging the substrate B such as a sample board with the scanner 50, but the image may also be obtained by imaging the design drawing of the board with the scanner 50. .

(2) In the above embodiment, the silk name S printed on the board B is used as identification information, but the identification information may be formed by etching the copper foil when forming the circuit of the board B. .

10... Mounting data creation device 20... Monitor 21... Visual editor 22... Parts library editor 23... Display section 30... Personal computer 31... Arithmetic processing section (mounting information creation section, parts data creation section, search section, setting section) 32... Image processing section (image acquisition section, search section) 33...Storage section 40...Keyboard 41...Input section 50...Scanner (image acquisition section)
51...Imaging unit 52...Image output unit 53...Stage 54...Field of view 60...Component 211...Board display unit 212...Enlarged display unit 213...Mounting information 214...Component information 215...Outline 216...Center point 217...Mounting coordinates 218... Part number 221...Parts library name 222...Shape information (parts data) 223...Packaging/polarity information 224...Suction/installation information 225...Parts image (parts data) 226...Defined shape 227...Center point B...Board (subject) B1...Board image (image)
P...Pattern S...Silk name (identification information)

Claims (4)

a mounting information creation step of creating a plurality of mounting information in which identification information displayed around a pattern in which the component is mounted and a part number of the component mounted in the pattern are linked;
a part data creation step of creating part data including shape information of the part;
an image acquisition step of acquiring an image by capturing an image of a subject including the pattern and the identification information;
The identification information of predetermined mounting information selected from a plurality of pieces of mounting information is searched from the image, the part number linked to the searched identification information is searched from the mounting information, and the searched part a search step of creating a defined shape of the part corresponding to the number from the part data, and searching around the identification information in the image for the pattern on which the created defined shape of the part can be mounted;
After calculating the mounting coordinates of the component by superimposing the defined shape of the component and the pattern of the image, and setting the calculated mounting coordinates as the mounting coordinates of the predetermined mounting information, a setting step of returning to the searching step so as to select different loading information from among the plurality of loading information ;
A method for creating mounting data that allows an operator to select the correct mounting coordinate when there are multiple mounting coordinates at which the component can be mounted. 2. The mounting data creation method according to claim 1, wherein the identification information is a silk name printed on the surface of the substrate as the subject. a mounting information creation unit that creates a plurality of mounting information in which identification information displayed around a pattern in which a component is mounted and a part number of a component to be mounted in the pattern are linked;
a parts data creation unit that creates part data including shape information of the part;
an image acquisition unit that acquires an image by capturing an image of a subject including the pattern and the identification information;
The identification information of predetermined mounting information selected from a plurality of pieces of mounting information is searched from the image, the part number linked to the searched identification information is searched from the mounting information, and the searched part a search unit that creates a defined shape of the part corresponding to the number from the part data and searches for the pattern in which the created defined shape of the part can be mounted in the image around the identification information;
a setting unit that calculates the mounting coordinates of the component by superimposing the defined shape of the component and the pattern of the image, and sets the calculated mounting coordinates as the mounting coordinates of the predetermined mounting information;
After the setting section sets the calculated mounting coordinates as the mounting coordinates of the predetermined mounting information, the searching section selects the mounting information different from the predetermined mounting information from among the plurality of mounting information. death,
The setting unit is a mounting data creation device that, when there are a plurality of mounting coordinates at which the component can be mounted, causes an operator to select the correct mounting coordinate, and sets the selected mounting coordinate as the mounting coordinate of the mounting information. 4. The mounting data creation device according to claim 3 , wherein the identification information is a silk name printed on the surface of the substrate as the subject.

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