JP4790199B2 - Environmental load evaluation apparatus and environmental load evaluation method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to an environmental load evaluation of a board on which electronic components are mounted (hereinafter referred to as a component mounting board).apparatusAnd an environmental load evaluation method.
[0002]
[Prior art]
Conventionally, the life cycle from product manufacturing to disposal is divided into raw material extraction and transportation, material manufacturing, parts manufacturing, product manufacturing and transportation, use, recycling, and disposal, and energy and resources at each stage. Life cycle assessment refers to the quantitative evaluation of the environmental load by obtaining the consumption amount and the type and generation amount of emissions. As conventional techniques related to life cycle assessment, for example, JP-A-7-31760 and JP-A-2000-553 disclose environmental load evaluation methods and apparatuses.
[0003]
Further, the environmental load evaluation method and apparatus disclosed in Japanese Patent Application Laid-Open No. 10-311760 discloses a database of a relationship between the type / size of a component and the environmental load in advance, so that the environmental load of the component mounting board is obtained. Attempts have been made to reduce the time and effort required for evaluation, but the actual component mounting board has been redesigned after the above investigation, even if information on the circuit configuration at the design stage is known. In other cases, it is not always known what components are mounted on the board when the circuit board is actually manufactured, because the designed parts are not procured and alternative parts are used. Therefore, the components mounted on each board are identified by visual inspection or document inspection, and the type and number of components manually identified in this way are used for calculating the environmental load.
[0004]
In such a manual operation, in some cases, in order to evaluate information such as the type and dimensions of the parts on the board, the work of removing and inspecting the soldered parts from the board and measuring the size May be required. In electrical products, as the circuit becomes more complex, the number of components mounted on the board is increasing at an accelerated rate. For this reason, there is a problem that it is time-consuming and takes a long time to manually evaluate the environmental load of a vast number of parts by going back to the manufacturing stage.
[0005]
In order to solve this problem, the applicant of the present application, on June 21, 2002, “Environmental load evaluation system and environmental load evaluation method” that enables automatic evaluation of the environmental load of a component mounting board in a short time, A patent application for the subject invention was filed (see Japanese Patent Application No. 2002-181744).
[0006]
This environmental load evaluation system includes an image acquisition unit that captures image data obtained by imaging a component mounting board to be evaluated, a component database including verification data and environmental load data for a plurality of components, and verification of image data and a component database. Authentication to identify each component of the evaluation target component mounting board by extracting the environmental load data of the specified component from the component database. And a verification unit.
[0007]
Further, the system includes a weight data unit that captures weight data obtained by measuring the weight of a component mounting board to be evaluated, and a board determination database that includes verification data and environmental load data for a plurality of component mounting boards. The collation unit executes a first collation process for evaluating the component mounting board as a whole by collating the image data and the weight data with the collation data in the board determination database, and the first collation process is specified. If the test fails, a second verification process is performed to identify each component of the component mounting board to be evaluated.
[0008]
According to this environmental load evaluation system, the component mounting substrate or the component on the substrate is recognized and identified by referring to the substrate determination database or the component database based on the image data captured by the camera and the measured weight data. The environmental load of the component mounting board can be obtained. Therefore, it has become possible to accurately perform environmental load assessments of parts mounting boards for electrical products, which have conventionally been performed manually over a long period of time, without human intervention, saving labor in life cycle assessments. Cost reduction can be realized.
[0009]
[Patent Document 1]
JP-A-7-31760
[Patent Document 2]
JP 2000-553 A
[0010]
[Problems to be solved by the invention]
However, although the environmental load evaluation system proposed in the above Japanese Patent Application No. 2002-181744 can automatically evaluate the environmental load of a component mounting board in a short time, if the number of component data held by the system is small, the recognition rate is low, All parts on the board that do not match the part data are allocated, that is, the environmental load of the parts that do not match is distributed and assigned to the matched parts, so the number of parts to be allocated increases and the environment is accurate. There is a problem that it is difficult to evaluate the load.
[0011]
Therefore, an object of the present invention is to provide an environmental load evaluation system and an environmental load evaluation method that solve the above-described problem, that is, accurately evaluate the environmental load.
[0012]
[Means for Solving the Problems]
The environmental load evaluation device that achieves the object is an environmental load evaluation device including a computer,A board collation database in which the board data including the component mounting board and the board data including the pattern of the component mounting board are recorded in correspondence with each other, and the component data including the component and the pattern of the part are recorded in correspondence with each other and a general component prepared in advance A component collation database in which a component type and a shape pattern of the component type are recorded in association with each other, and the component mounting board, the component, and the component typeRecorded environmental impact dataEnvironmental load database, An external storage device for storing image data, an image acquisition means for acquiring image data obtained by imaging the component mounting board to be evaluated, a main storage device for storing image data acquired by the image acquisition means, and the image data WhenThe board data of the component mounting board in the board verification database andMatchFirstMatching means;FirstAccording to the collation result of the collation means, the image data andBoard data of the component mounting boardWhen does not matchSaidComponent mounting boardMounted onImage data of parts andSecond collating means for collating the component data in the component collation databaseAnd saidSecondDepending on the verification result of the verification meansImage data of the component mounted on the component mounting board and the component dataWhen does not matchCollating the image data of the component mounted on the component mounting board with the shape pattern of the component type in the component verification database, calculating the matching rate,The part having a shape pattern with the calculated matching rate higher than a predetermined threshold and the highest matching rateseedTheMounted on the component mounting boardDetermining means for determining that the component is a component;SecondVerification methodFruitWhen they match, depending on the determination result of the determination meansThe component type is mounted on the component mounting board.When it is determined as a component, the component on the component mounting boardAnd part typesBy extracting environmental load data from the environmental load databaseSaidAnd an environmental load calculation means for obtaining environmental load data of the component mounting board.
[0013]
  An environmental load evaluation method that achieves the above object includes a substrate verification database that records a component mounting board and board data including a pattern of the component mounting board in association with each other, and a component data including a component and a pattern of the component in association with each other. A part collation database in which a part type of a general part prepared in advance and a shape pattern of the part type are recorded in correspondence with each other, and environmental load data about the part mounting board, the part, and the part type are recorded. An environmental load evaluation method that is executed by a computer having an external storage device that stores an environmental load database in advance, the image acquisition step for acquiring image data obtained by imaging the component mounting board to be evaluated, and the image acquisition step Storing the stored image data in a main storage device; and the image data and the substrate verification database. When the image data and the board data of the component mounting board do not coincide with each other as a result of the collation of the first collating step with the board data of the component mounting board in the first collating step A second collation step for collating image data of a component mounted on a mounting substrate with the component data in the component collation database, and a component mounted on the component mounting substrate according to a collation result of the second collation step. When the image data and the component data do not match, the image data of the component mounted on the component mounting board is compared with the shape pattern of the component type in the component verification database, and the matching rate is calculated. A component type having a shape pattern with the calculated matching rate higher than a predetermined threshold and the highest matching rate is mounted on the component mounting board. The component type is mounted on the component mounting board when the determination step of determining that the component is the same and the result of the verification step of the second verification unit match, and by the determination result of the determination step Determining the environmental load data of the component mounting board by extracting the environmental load data of the component and the component type on the component mounting board from the environmental load database.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
[0018]
FIG. 1 is a configuration diagram of an environmental load evaluation system for a component mounting board according to a first embodiment of the present invention. An environmental impact evaluation system 10 according to the present invention shown in FIG. 1 as a whole is a camera (image acquisition unit) that captures image data captured on a substrate 1 fixed on a component mounting substrate (hereinafter simply referred to as a substrate) 1 to be evaluated. 2, an illumination device 3 that is fixed on the substrate 1 and illuminates the substrate 1, a scale 4 that measures the weight of the substrate 1, a stage 5 on which the scale 4 on which the substrate 1 is placed, a camera 2, an illumination device 3, It has a control device 6 connected to a scale 4 and a stage 5.
[0019]
An external storage device 7, for example, a magnetic disk, is connected to the control device 6. The external storage device 7 is a collation database (DB) that records collation data for a plurality of components on the board 1 and the component mounting board. ) 71 and an environmental load database (DB) 72 in which environmental load data for a plurality of components and component mounting boards are recorded.
[0020]
FIG. 2 is a detailed view of the control device 6 shown in FIG. The control device 6 includes a computer main body 60, an input device 61 such as a keyboard 611 and a mouse 612, an output device 62 such as a display 621 and a printer 622, and a program between the computer main body 60 and an external computer via a LAN or the Internet. A communication device 63 that transmits and receives data is included.
[0021]
The computer main body 60 is written in a CPU 601, a RAM 602 as a main storage device used in a temporary storage area for programs and data executed by the CPU 601 and a work area for the CPU 601, a ROM 603 for storing fixed programs and data, and a RAM 602 as necessary. An auxiliary storage device 604 composed of a magnetic disk or the like for storing programs and data to be loaded, a reading device 605 for a program or data recording medium M such as a flexible disk FD or a compact disk CD, and a CPU 601, an input device 61, and an output device 62. Or it has the interface 606 which connects between the communication apparatuses 63 so that communication is possible. The CPU 601, RAM 602, ROM 603, auxiliary storage device 604, reading device 605, and interface 606 are connected to each other via a bus line 607 so as to communicate with each other.
[0022]
The control device 6 has a stage driving device that moves the stage 5 in a three-dimensional direction and rotates around the direction of each dimension. In the present embodiment, the camera 2 is fixed and the stage 5 is moved in the three-dimensional direction or rotated around each moving direction. However, the stage 5 is fixed and the camera 2 is moved in the three-dimensional direction instead of the stage 5. It is good also as another form which moves to (1) or rotates around each moving direction.
[0023]
The illumination device 3 is configured such that the color of illumination light and the irradiation angle of the illumination light with respect to the substrate 1 can be selected so that the contrast of components on the substrate 1 can be as large as possible. By sending a switching signal from the control device 6 to the lighting device 3, the color of the illumination light is selected from W (white), R (red), G (green) or B (blue), and the irradiation angle is the substrate 1 Is selected to irradiate illumination light from directly above, upper left, upper right, front upper, or rear upper.
[0024]
FIG. 3 is a diagram showing a specific example of the collation database, (A) is a diagram showing the component collation database, and (B) is a diagram showing the board collation database. As shown in FIG. 3A, the collation DB 71 stores a table in which components mounted on the substrate 1, that is, electronic device element names, element numbers (No.), and patterns are described. As shown in FIG. 3A, logic ICs, memories, resistors, capacitors, etc. are used as element names. However, each No. The pattern is written. This pattern is image data for collation with image data of a component to be collated. As shown in FIG. 3B, the verification DB 71 includes a board name, board number (No.), and each No. indicating the function of the board 1. A table describing the pattern of the substrate corresponding to is stored. This pattern is image data for collation with the image data of the substrate to be collated.
[0025]
First, after the image data of the substrate 1 is acquired by the camera 2, the substrate 1 is specified based on the acquired image data based on the verification DB 71 of the substrate. If the identification is impossible, each component on the substrate 1 is recognized and the substrate 1 is identified based on the component verification DB 71. Based on the data of the specified board 1, the environmental load data corresponding to the board 1 is calculated from the environmental load DB 72. In this case, for parts that cannot be specified, matching is performed with the general part shape pattern shown in FIG. 3A stored in the part DB 71, and the image data of the parts to be collated and the images in the respective DBs 71 are matched. The matching rate with the data is calculated, and the component to be verified is regarded as the image data component with the highest matching rate. Further, here, a part whose matching rate does not satisfy a certain value (60%) is allocated. Here, the allocation refers to a process of allocating the environmental load amount according to the area of the image data of the component for which the environmental load amount of the part to be identified that cannot be specified can be specified.
[0026]
Shape recognition for component identification is performed by moving the stage in the two-dimensional (planar) direction, but if the movement of the stage in the two-dimensional direction is insufficient, it is rotated around the three-dimensional direction and each direction. By doing so, it is possible to recognize image data with better contrast or characters written on the parts.
[0027]
FIG. 4 is a diagram showing functional modules of a program for an environmental load evaluation method. The environmental load evaluation method program according to the present invention includes an image recognition module 401, a camera control module 402, a scanning module 403, a matching module 404, a tabulation / form module 405, an allocation module 406, a graphing module 407, and a weight data acquisition module 408. Including.
[0028]
The image recognition module 401 analyzes the image data captured from the camera 2.
[0029]
The camera control module 402 controls the camera 2 to adjust the zoom, focus, imaging position, etc., and image the substrate 1.
[0030]
The scanning module 403 captures the image data captured by the camera 2 into the RAM 602 in the computer main body 60.
[0031]
The matching module 404 specifies the substrate 1 or a component on the substrate 1 by comparing the data in the substrate DB and the component DB of the verification DB with the image data based on the image recognition result.
[0032]
The tabulation / form module 405 summarizes the environmental load evaluation data of each identified part into a table based on the result of image recognition / target identification.
[0033]
The allocation module 406 allocates an environmental load with reference to recognized / identified component data for components that cannot be recognized / identified among components on the board 1 to be evaluated.
[0034]
The graphing module 407 displays data on the environmental load obtained for the substrate 1 in a graph.
[0035]
The weight data acquisition module 408 takes the weight data from the scale 4 into the RAM 602 in the computer main body 60.
[0036]
The above-described modules are functional modules of programs executed by the CPU 601 in the computer main body 60, and operate as functional units of the control device 6 when executed. The camera control module 402 and the scanning module 403 may constitute a functional unit for acquiring image data. The image recognition module 401 and the matching module 404 may constitute a functional unit for recognition and collation.
[0037]
Next, the environmental load evaluation method according to the present invention will be described.
[0038]
FIG. 5 is a flowchart of the process of the first environmental load evaluation method for the component mounting board according to the first embodiment of the present invention. The configuration of the apparatus is the same as that shown in FIG. 1, and the camera 2 moves and the stage 5 is fixed.
[0039]
In step ST1, by setting an initial value of image recognition accuracy, the accuracy of matching processing in environmental load evaluation is set. This is to set the condition for matching judgment by setting the number of parameters to be matched and the parameter range for judging matching when matching the captured image data with board data or component data. is there.
[0040]
In step ST2, measurement of the substrate 1 is started by the control device 6. A measurement instruction is sent from the camera control module 402 to the camera 2, and image data that can grasp the layout of the entire substrate 1 is captured by the scanning module 403.
[0041]
In step ST3, image data of the entire substrate 1 is captured and the area of the substrate 1 is measured. Image recognition processing is executed by the image recognition module 401 on the image data of the entire substrate 1.
[0042]
In step ST4, the weight data acquisition module 408 measures the weight of the substrate 1 with the scale 4, and acquires the weight data.
[0043]
In step ST5, it is determined from the image data of the entire substrate 1 whether the substrate has already been measured. Specifically, the matching module 404 collates the image analysis result and weight data of the substrate 1 with the data of the substrate DB to determine whether the substrate 1 matches the substrate data of the substrate DB. If the determination result is YES, the process proceeds to step ST15, the result is displayed in ST15, and this routine is terminated. If the determination result is NO, the process proceeds to step ST6, the camera 2 is operated in ST6, and the process proceeds to step ST7. In this embodiment, only the camera 2 is provided, but if an X-ray camera is provided in addition, not only the image data of the visible image but also the image data of the hidden part can be acquired.
[0044]
In steps ST7, ST8, ST9, ST10, ST21, and ST22, scanning for individual components on the board 1 is started. Work is performed (Process A). Here, processing A will be described below.
[0045]
Information relating the image data such as the type and size of the board and components to the environmental load is acquired from the external storage device 7 in the control device 6 (step ST20). Next, items to be recognized for the parts are listed (a: shape, b: color, c: nameplate, etc.), and it is checked whether or not all items can be recognized using the image data obtained by scanning in step ST7. That is, by using the arithmetic unit of the control device 6, two types of information (relation information and image data) are matched and the types of individual components (LSI, resistor, capacitor, etc.) mounted on the substrate 1 by pattern recognition (Pattern matching: steps ST6, ST7, ST8).
[0046]
The environmental load amount of the part is calculated from the recognized data (pattern matching: steps ST6, ST7, ST8).
[0047]
In step ST21, for unrecognizable image data, matching with a general component image is performed, and a matching rate is calculated.
[0048]
In step ST22, a part having a matching rate of 60% or more is regarded as a part type, and the area is calculated. For other parts, the area is calculated as unrecognizable part data, and stored in the external storage device 7 of the control device 6 (step ST23). Scanning is performed (step ST7) until the coordinates become END (step ST7), and the above operations are repeated (until the coordinate end point of the substrate 1 is detected).
[0049]
When the summation and form creation are completed in step ST10, the process A is terminated, and in step ST11, the recognition rate (the sum of the masses of the boards and recognized components and the ratio of the masses of the whole boards) is calculated from the summation results. As a result, if the value of the recognition rate is less than 0.9, the image recognition accuracy is lowered (reducing the number of items necessary for recognition: 3 to 2) and fed back to the pattern recognition operation described above (step ST12). , ST13).
[0050]
The feedback is repeated twice, and when the recognition rate becomes 0.9 or more in step ST11, the data that could not be recognized is allocated (step ST14), and the final environmental load evaluation result is connected to the control device 6 The data is displayed in the form represented by 621 (step ST15).
[0051]
FIG. 6 is a detailed flowchart of the matching rate calculation process in the process A shown in FIG. 5, FIG. 7 is an explanatory diagram of the matching rate calculation, and FIG. (B) is a diagram showing an example in which matching / mismatching of contours is examined and a matching rate is calculated.
[0052]
In step ST1, a part for calculating a matching rate is selected. This selection determines whether the element category similar to the pattern stored in the component DB shown in FIG. 3A in the verification DB 71 is a logic IC, a memory, a resistor, a capacitor, or the like.
[0053]
In step ST2, each No. in the same category. Calculate the matching rate for the part. Here, an example of calculating the matching rate will be described.
[0054]
FIG. 7A shows an example of checking matching / mismatching of image data on a pixel basis and calculating a matching rate. The number of pixels that match and the number of pixels that do not match within a predetermined range of image data are counted, and the matching rate is calculated by the following equation.
[0055]
Matching rate = (number of matched pixels / (number of matched pixels + number of mismatched pixels)) * 100
FIG. 7B shows an example in which matching / non-matching of contours is checked and a matching rate is calculated. Specifically, the circumference L2 that does not coincide with the circumference L1 with the same outline in the total circumference TL (= L1 + L2) is calculated from the proportion of the matching feature shapes, and the matching rate is calculated using the following equation.
[0056]
Matching rate = (L1 / (L1 + L2)) * 100
In step ST3, it is determined that the component whose matching rate has been calculated is a component in the same category as the component having the highest matching rate.
[0057]
In step ST4, cutting out, counting the number of pieces, and calculating the area. Here, the term “cut out” means that a check indicating that the part has been specified is entered.
[0058]
In step ST5, it totals and outputs a form.
[0059]
Next, a generally used part cutting operation will be described.
[0060]
FIGS. 8A and 8B are explanatory diagrams of the component cutting operation. FIG. 8A is a diagram showing a component mounting board to be worked, and FIG. 8B is a diagram showing the result of the component cutting operation. The image processing function of the environmental load evaluation system shown in FIG. 1 will be described below with reference to FIG.
[0061]
A: In pattern recognition, matching is performed between the image data of the part to be collated and the image data existing in the collation DB, and when the parts are determined to be the same part, they are cut out, and the parts to be collated similarly determined Count the number of. B: Character recognition is performed in the same manner.
[0062]
If the same component is mounted on the same board at a different angle, C: cut out and count the number by angle recognition. Here, the area of the recognized component is calculated at the same time by cutting or painting. Next, an example of a processing method when the image of the entire substrate 1 cannot be captured by the camera 2 will be described.
[0063]
FIG. 9A is a diagram showing an image taken by dividing the entire mounting circuit board by the camera into four parts, and FIG. 9B is a diagram showing an entire image of the mounting circuit board subjected to the joining process. In many cases, a substrate 1 having a size of about 30 cm such as a mother board cannot be processed at a time. In such a case, processing such as joining four images into one by image joining processing is performed.
[0064]
FIG. 10 is a flowchart of the process of the second environmental load evaluation method for the component mounting board according to the first embodiment of the present invention. This is a simple environmental load evaluation apparatus using only two-dimensional image data. The apparatus configuration differs from that shown in FIG. 1 in that the stage 5 moves and the camera 2 is fixed. Further, in FIG. 10, the same step numbers as those in the flowchart shown in FIG.
[0065]
In step ST30, it is determined from the image data of the entire substrate 1 whether or not the substrate has already been measured. If the determination result is YES, the result is displayed in step ST15 and the process ends. If the determination result is NO, pattern matching work (shape, character, angle, etc.) with the image data stored in the collation DB 71 for each component on the substrate 1 based on the entire image data acquired in step ST20. (Step ST9). The components that can be matched in step ST9 are counted for the same components on the substrate 1, and when the counting operation is completed, the occupied area of the components on the substrate 1 is calculated (step ST33).
[0066]
This series of data is recorded in the external storage device 7 of the control device 6, information relating the part image data and the environmental load is acquired from the external storage device 7, aggregated, and a form is created (step ST 10). . For image data that cannot be recognized in step ST9, matching is performed with general component image data stored in advance in the collation DB 71, and a matching rate is calculated (step ST32).
[0067]
If the matching rate is 60% or higher in step ST34, it is regarded as the part type, and the number count and area are calculated (step ST35). Also, information relating the part type image data and the environmental load amount is acquired from the external storage device 7 and aggregated to create a form (step ST10). For other parts, the area is calculated as unrecognizable part data and stored in the external storage device 7 of the control device 6 (step ST36).
[0068]
In step ST11, the recognition rate (the ratio of the sum of the areas of the recognized parts to the sum of the areas of the parts that could not be recognized) is calculated from the counting result. Then, the image recognition accuracy is lowered (reducing the number of items necessary for recognition: 3 to 2), and the result is fed back to the pattern recognition work (steps ST12 and ST37).
[0069]
If the recognition rate becomes 0.9 or more when the feedback is repeated twice, the data that could not be recognized is allocated (step ST14), and the final environmental load evaluation result is displayed on the display 621 connected to the control device 6. It is displayed in the converted format (step ST15).
[0070]
FIG. 11 is a configuration diagram of an environmental load evaluation system for a component mounting board according to a first example of the second embodiment of the present invention. The configuration is substantially the same as that of the embodiment shown in FIG. 1, and the difference is that an external verification database DB 71 'and an external environmental load database DB 72' are provided.
[0071]
First, after the image data of the substrate 1 is acquired by the camera 2, the substrate 1 is specified based on the acquired image data based on the verification DB 71 of the substrate. If the identification is impossible, each component on the substrate 1 is recognized and the substrate 1 is identified based on the component verification DB 71. Based on the data of the specified board 1, the environmental load data corresponding to the board 1 is calculated from the environmental load DB 72. In this case, for unrecognized parts that cannot be specified, similar parts are extracted by searching the external database, that is, the external collation database DB 71 'and the external environmental load database DB 72' based on the image data of the parts.
[0072]
FIG. 12 is a configuration diagram of an environmental load evaluation system for a component mounting board according to a second example of the second embodiment of the present invention. The example shown in FIG. 12 is a case where electronic data of documents and catalogs are stored as external databases (external collation database DB 71 ′ and external environmental load database DB 72 ′). Here, the literature and catalog data are, for example, those stored on a hard disk HD such as a magnetic disk after being read by a scanner, those recorded on a medium such as a CD, or paper-based information in PDF (Portable Document Format). It may be an electronic file such as. Here, the PDF means a format relating to a character font and an image format for exchanging document files between computers having different OSs.
[0073]
FIG. 13 is a configuration diagram of an environmental load evaluation system for a component mounting board of a third example according to the second embodiment of the present invention. This is a case of searching an external database (external collation database DB 71 'and external environmental load database DB 72') via the Internet.
[0074]
FIG. 14 is a diagram illustrating an example of image information retrieved from character information, (A) is a diagram illustrating input character data, and (B) is a diagram illustrating output image data. FIG. 14 schematically shows an example of image search by the search engine google (http://images.google.com/). When “semiconductor” is input and searched as an input keyword, image information of various semiconductors can be searched on the site, and a target semiconductor image and information related thereto are obtained.
[0075]
FIG. 15 is a diagram showing an example of image information retrieved from image information, (A) is a diagram showing input image data, and (B) is a diagram showing output image data. FIG. 15 schematically shows an example of image search by the search engine eVision (http://www.evisionglobal.com/#). When searching based on an image input from a camera, image information of various semiconductors can be searched on the site, and a target semiconductor image and information related thereto can be obtained.
[0076]
FIG. 16 is a flowchart of the process of the environmental load evaluation method for a component mounting board according to the second embodiment of the present invention. The apparatus configuration differs from that shown in FIG. 1 in that the stage 5 moves and the camera 2 is fixed. Further, in FIG. 10, the same step numbers as those in the flowchart shown in FIG.
[0077]
In step ST40, it is determined from the image of the entire substrate 1 whether or not the substrate has already been measured. If the determination result is YES, the result is displayed in step ST15 and the process ends. If the determination result is NO, the process proceeds to step ST41.
[0078]
In step ST41, pattern matching work (shape, character, angle, etc.) with the image data stored in the collation DB 71 is performed for each part on the board based on the entire image acquired in step ST20. For the matched parts, a series of data is recorded in the external storage device 7 of the control device 6 (step ST45), and information relating the image data of the component and the environmental load amount is acquired from the external storage device 7 and aggregated ( Step ST10), a form is created (step ST10). For image data that cannot be recognized by matching, the external storage device 7 is searched and matching is performed again.
[0079]
When the tabulation and form creation are completed, the recognition rate (the sum of the masses of the boards and recognized components and the mass ratio of the entire board) is calculated from the tabulation results of step ST10, and the value of the calculation result is 0 in step ST11. If it is less than .9, the image recognition accuracy is lowered and fed back to the pattern matching operation in step ST41 (steps ST12 and ST44).
[0080]
When the feedback is repeated three times, the recognition rate becomes 0.9 or more. Therefore, the data that could not be recognized is allocated (step ST14), and the final environmental load evaluation result is displayed on the display 621 connected to the control device 6. The data is displayed in the form of a chart (step ST15).
[0081]
As another example, in the whole substrate image recognition in step ST3 of FIG. 16, when the captured image is a three-dimensional image and the amount of image information when determining by pattern matching is increased, the recognition rate is higher than that of only the two-dimensional image. Can be improved. As yet another embodiment, if the information obtained by searching the unrecognizable data in FIG. 16 by the external storage device is taken in (added registration) as an internal database, the recognition rate can be further improved.
[0082]
As another example, when the pattern matching of FIG. 16 is performed, the search database is classified in advance by function category (LSI, resistor, capacitor) of components normally mounted on a printed circuit board. It is possible to search from image data having similar component functions, and the recognition rate can be further improved.
[0083]
(Appendix 1)
An image acquisition unit that captures image data obtained by imaging a component mounting board to be evaluated, a component database that includes verification data and environmental load data for a plurality of components, and the image data and verification data in the component database A matching unit to
Matching that calculates a matching rate between the image data of the component prepared in advance and the image data of the component on the component mounting board to be evaluated when the image data does not match the verification data according to the verification result of the verification unit Rate unit,
When the image data does not match the verification data according to the verification result of the verification unit, the component with the highest matching rate calculated by the matching rate unit is selected from the previously prepared components. Identified as parts,
When the image data and the collation data match according to the collation result of the collation unit, each component of the component mounting board to be evaluated is specified, and the environmental load data of each specified component is extracted from the environmental load database. Environmental load calculation unit to obtain environmental load data of the component mounting board to be evaluated,
An environmental load evaluation system comprising:
[0084]
(Appendix 2)
When the matching rate calculated by the matching rate unit is greater than a predetermined threshold, the component with the highest matching rate is identified as the evaluation target component, and when the calculated matching rate is equal to or lower than the predetermined threshold, The environmental load evaluation system according to appendix 1, further comprising an allocation unit that allocates the environmental load amount to the specified environmental load amount without specifying the evaluation target component.
[0085]
(Appendix 3)
A weight measuring unit for measuring the weight of the component mounting board to be evaluated, wherein the verification data in the component database includes component weight data, and the image data and the verification data according to the verification result of the verification unit; Based on the weight of the component mounting board and the weight data of the component stored in the component database, the environmental load amount of the component that has not been identified because of the coincidence is determined based on the collation result of the collation unit. 3. The environmental load evaluation system according to appendix 1 or 2, wherein the environmental data is allocated to the environmental load amount of the part specified by matching with the business data.
[0086]
(Appendix 4)
An area calculation unit for calculating an area from image data of a part to be evaluated is provided, and the verification data in the component database includes area data of the component, and the image data and the verification data are determined by a verification result of the verification unit. The environmental load amount of the part that was not specified because of the matching with the image data and the collation based on the collation result of the collation unit based on the area of the image data and the area data of the part stored in the parts database The environmental load evaluation system according to any one of appendices 1 to 3, wherein the environmental data is allocated to the environmental load amount specified by matching with the business data.
[0087]
(Appendix 5)
The environmental load evaluation system according to any one of appendices 1 to 4, further comprising a counting unit that counts the same parts identified as a result of the verification by the verification unit.
[0088]
(Appendix 6)
An image acquisition unit that captures image data obtained by imaging a component mounting board to be evaluated, a component database that includes verification data and environmental load data for a plurality of components, and the image data and verification data in the component database A matching unit to
When the image data and the collation data do not match according to the collation result of the collation unit, similar parts are extracted from other information sources based on the image data of the evaluation target parts, and the extracted parts An environmental load evaluation system comprising: a storage unit for storing environmental load data.
[0089]
(Appendix 7)
The environmental load evaluation system according to appendix 6, wherein environmental load data of parts stored in the storage unit is acquired via the Internet.
[0090]
(Appendix 8)
The environmental load evaluation system according to appendix 6, wherein environmental load data of parts stored in the storage unit is acquired from an electronic medium.
[0091]
(Appendix 9)
The environmental load evaluation system according to appendix 6, wherein environmental load data of parts stored in the storage unit is acquired by reading image data such as a catalog with a scanner.
[0092]
(Appendix 10)
The environmental load evaluation system according to appendix 6, wherein the environmental load data of the component stored in the storage unit is obtained based on the read character information read from the character information stamped on the component.
[0093]
(Appendix 11)
The environmental load evaluation system according to appendix 6, wherein the image data is three-dimensional image data of the part to be evaluated.
[0094]
(Appendix 12)
The environmental load evaluation system according to attachment 6, wherein the parts stored in the parts database are classified according to function.
[0095]
(Appendix 13)
The environmental load evaluation system according to appendix 6, wherein the part to be evaluated is specified from a part having a functional classification similar to a pattern of image data of the part.
[0096]
(Appendix 14)
A parts database including collation data and environmental load data for a plurality of parts is prepared in advance, image data obtained by imaging the component mounting board to be evaluated is captured, and the image data and collation data in the parts database are collated.
When the image data and the verification data do not match according to the verification result of the verification unit, the matching rate with the image pattern of the component prepared in advance for the component image data of the component mounting board to be evaluated is calculated,
When the image data and the verification data do not match according to the verification result of the verification unit, the component with the highest matching rate calculated from the previously prepared components is identified as the component to be evaluated,
When the image data and the verification data match according to the verification result of the verification unit, each component of the component mounting board to be evaluated is specified, and environmental protection data of each specified component is extracted from the environmental load database To obtain environmental load data of the component mounting board to be evaluated,
An environmental load evaluation method comprising each step.
[0097]
(Appendix 15)
When the calculated matching rate is greater than a predetermined threshold, the component with the highest matching rate is identified as the evaluation target component, and when the calculated matching rate is equal to or lower than the predetermined threshold, the evaluation target component 15. The environmental load evaluation method according to appendix 14, wherein the environmental load amount is allocated to the specified environmental load amount of the specified part without specifying the.
[0098]
(Appendix 16)
The weight data of the part is stored in the verification data in the component database in advance, the weight of the evaluation target component mounting board is measured, and the verification result of the verification unit does not match the image data with the verification data. Based on the weight of the component mounting board and the weight data of the component stored in the component database, the image data and the verification data are determined based on the verification result of the verification unit. 16. The environmental load evaluation method according to appendix 14 or 15, wherein allocation is performed to the environmental load amount specified by matching.
[0099]
(Appendix 17)
Data for collation and environmental load data for a plurality of parts are stored in the parts database in advance, image data obtained by imaging the component mounting board to be evaluated are captured, and the image data is collated with the data for collation in the parts database. When the image data and the verification data do not match according to the verification result, similar parts are extracted from other information sources based on the image data of the evaluation target parts, and the environmental load data of the extracted parts is obtained. Store,
An environmental load evaluation method comprising each step.
[0100]
(Appendix 18)
18. The environmental load evaluation method according to appendix 17, wherein environmental load data of components stored in the component database is acquired via the Internet.
[0101]
【The invention's effect】
As described above, according to the invention, it is possible to provide an environmental load evaluation system and method for accurately evaluating environmental loads.
[Brief description of the drawings]
FIG. 1 is a configuration diagram of an environmental load evaluation system for a component mounting board according to a first embodiment of the present invention.
FIG. 2 is a detailed view of the control device shown in FIG.
FIG. 3 is a diagram showing a specific example of a parts database.
FIG. 4 is a diagram showing functional modules of a program for an environmental load evaluation method.
FIG. 5 is a flowchart of processing of a first environmental load evaluation method for a component mounting board according to the first embodiment of the present invention.
6 is a detailed flowchart of a matching rate calculation process in process A shown in FIG.
7A and 7B are explanatory diagrams of calculation of a matching rate, in which FIG. 7A is a diagram illustrating an example of checking matching / mismatching of image data in units of pixels and calculating a matching rate, and FIG. It is a figure which shows the example which calculates a check matching rate.
FIGS. 8A and 8B are explanatory diagrams of a component cutting operation, FIG. 8A is a diagram illustrating a component mounting board to be operated, and FIG. 8B is a diagram illustrating a result of the component cutting operation;
9A is a diagram showing an image taken by dividing the entire mounted circuit board into four by a camera, and FIG. 9B is a diagram showing an entire mounted circuit board image that has been subjected to stitching processing.
FIG. 10 is a flowchart of a process of a second environmental load evaluation method for a component mounting board according to the first embodiment of the present invention.
FIG. 11 is a configuration diagram of an environmental load evaluation system for a component mounting board of a first example according to the second embodiment of the present invention.
FIG. 12 is a configuration diagram of an environmental load evaluation system for a component mounting board according to a second example of the second embodiment of the present invention;
FIG. 13 is a configuration diagram of an environmental load evaluation system for a component mounting board according to a third example of the second embodiment of the present invention.
14A and 14B are diagrams illustrating an example of image information retrieved from character information, FIG. 14A is a diagram illustrating input character data, and FIG. 14B is a diagram illustrating output image data.
FIGS. 15A and 15B are diagrams illustrating an example of image information retrieved from image information, FIG. 15A is a diagram illustrating input image data, and FIG. 15B is a diagram illustrating output image data;
FIG. 16 is a flowchart of processing of an environmental load evaluation method for a component mounting board according to a second embodiment of the present invention.
[Explanation of symbols]
1. Component mounting board
2 ... Camera
3 ... Lighting device
4 ... Scale
5 ... Stage
6. Control device
7 ... External storage device
71 ... Collation database DB
72 ... Environmental load database DB

Claims (2)

An environmental load evaluation apparatus equipped with a computer,
A board collation database in which the board data including the component mounting board and the board data including the pattern of the component mounting board are recorded in correspondence with each other, and the component data including the component and the pattern of the part are recorded in correspondence with each other and a general component prepared in advance An external storage device that stores in advance a component collation database that records a component type and a shape pattern of the component type in association with each other, and an environmental load database that records environmental load data for the component mounting board, the component, and the component type When,
Image acquisition means for capturing image data obtained by imaging the component mounting board to be evaluated;
A main storage device for storing the image data captured by the image acquisition means;
A first collation unit for collating the image data and the board data of the component mounting board in the board collation database ;
Wherein when the first through collation result of the collation means and substrate data of the component mounting board and the image data does not match, the component data of the component mounting in the image data and the part matching database component mounted on the substrate A second collating means for collating
When the image data of the component mounted on the component mounting board does not match the component data according to the verification result of the second verification means, the image data of the component mounted on the component mounting board and the component verification by matching the component type of the shape pattern in the database, calculates the matching rate, the calculated matching rate is higher than a predetermined threshold value, and wherein the component species with the highest shape pattern matching rate component mounting Determining means for determining that the component is mounted on the board ;
When said verification result of the second comparing means are matched, and the the determination result of the determination means when it is determined that the component type is a components mounted on the component mounting board, part of the component mounting board and environmental load calculation means for calculating the environmental impact data of the component mounting board by and to extract a component type of environmental impact data from the environmental load database,
An environmental load evaluation apparatus comprising: A board collation database in which the board data including the component mounting board and the board data including the pattern of the component mounting board are recorded in correspondence with each other, and the component data including the component and the pattern of the part are recorded in correspondence with each other, An external storage device that stores in advance a component collation database that records a component type and a shape pattern of the component type in association with each other, and an environmental load database that records environmental load data for the component mounting board, the component, and the component type An environmental load evaluation method executed by a computer having
  An image acquisition step for capturing image data obtained by imaging the component mounting board to be evaluated;
  Storing the image data captured in the image acquisition step in a main storage device;
  A first collation step of collating the image data with the board data of the component mounting board in the board collation database;
  When the image data does not match the board data of the component mounting board according to the matching result of the first matching step, the image data of the parts mounted on the component mounting board and the parts in the parts matching database A second matching step for matching data;
  When the image data of the component mounted on the component mounting board does not match the component data according to the verification result of the second verification step, the image data of the component mounted on the component mounting board and the component verification The matching pattern is calculated by collating with the shape pattern of the component type in the database, and the component type having the shape pattern with the calculated matching rate higher than a predetermined threshold and the highest matching rate is the component mounting board. A determination step of determining that the component is mounted on the
  When the result of the collation step of the second collating means matches, and when the component type is determined to be a component mounted on the component mounting substrate according to the determination result of the determining step, Obtaining environmental load data of the component mounting board by extracting the environmental load data of the component and the component type from the environmental load database; and
An environmental load evaluation method characterized by comprising:

Images