TW202223740A - Automatic inspection system and operation method thereof including a machine vision inspection device, a repair station, an artificial intelligence module and a processing platform - Google Patents
Automatic inspection system and operation method thereof including a machine vision inspection device, a repair station, an artificial intelligence module and a processing platform Download PDFInfo
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本發明係提供一種系統與方法,且特別是有關於一種自動檢測系統及其操作方法。 The present invention provides a system and method, and more particularly, relates to an automatic detection system and a method of operation thereof.
按,隨著科技進步,使電子零件的尺寸縮小化而精密度則要求日益提高,故為了確保產品的良率提升,在現代化製程中,需要在各個重要站點進行檢測,以利及早抓出具有瑕疵或缺陷的不良品,並減少製程資源的浪費,提升產線的產量及良率,但也讓製程消耗的時間會隨著多站檢測而增加,因此,為了加速檢測的時間,自動視覺檢測與自動光學檢測等自動化檢測技術,便成為製程中不可或缺的角色。 Press, with the advancement of science and technology, the size of electronic parts is reduced and the precision is increasingly required. Therefore, in order to ensure the improvement of product yield, in the modern process, it is necessary to carry out inspections at various important sites to facilitate early detection. Defective products with defects or defects can reduce the waste of process resources, improve the output and yield of the production line, but also increase the time consumed by the process with multi-station inspection. Therefore, in order to speed up the inspection time, automatic vision Automated inspection technologies such as inspection and automatic optical inspection have become an indispensable role in the process.
而一般自動化檢測設備為普遍應用在電路板組裝生產線的外觀檢查,並取代以往的人工目檢作業,例如可用來檢測電路板上的零件焊錫、組裝後的品質狀況,其基本的原理是利用影像技術來比對待測物與標準影像是否有過大差異,以判斷待測物是否有符合標準,但傳統的自動化檢測設備常因色差、高度落差等因素,造成誤報率過高,反而增加了事後人力替異常的檢測進行複檢及處理成本的浪費。 The general automatic inspection equipment is generally used in the appearance inspection of circuit board assembly production lines, and replaces the previous manual visual inspection operations. For example, it can be used to detect the soldering of parts on the circuit board and the quality status after assembly. The technology is used to compare whether there is too much difference between the object to be tested and the standard image to judge whether the object to be tested meets the standard. However, the traditional automatic detection equipment often causes a high false alarm rate due to factors such as color difference and height drop, which increases the manpower after the event. Waste of re-inspection and processing costs for abnormal detection.
然而,隨著現代的工業4.0與智慧製造的興起,並在講究生產效率與品質的智慧工廠中,品質檢測是確保產線良率與產品品質最重 要的程序之一,為了提升檢測作業的準確率,過去多用自動化檢測設備來協助現場端產線人員作業,但是隨著人工智慧技術的應用日漸成為主流,逐漸成熟的人工智慧技術也開始與自動化檢測設備作整合,透過機械學習或深度學習演算法,使自動化檢測設備的瑕疵檢測更精準,以降低自動化檢測設備的誤報率、節省大量人力成本,惟該製造業者所採用的機械學習或深度學習都需要先經過訓練模式,再將訓練結果下載至現場端自動化檢測設備或終端設備應用的推論模式,而在訓練模式的建立,最大的問題就是良好樣本與瑕疵樣本取得的比例相差懸殊,瑕疵樣本的不足,也將導致難以有效訓練能夠辨識瑕疵的模型。 However, with the rise of modern Industry 4.0 and smart manufacturing, and in smart factories that pay attention to production efficiency and quality, quality inspection is the most important thing to ensure production line yield and product quality. One of the necessary procedures, in order to improve the accuracy of inspection operations, in the past, automated inspection equipment was often used to assist on-site production line personnel. Inspection equipment is integrated, and through machine learning or deep learning algorithm, the defect detection of automatic inspection equipment is more accurate, so as to reduce the false alarm rate of automatic inspection equipment and save a lot of labor costs, but the machine learning or deep learning adopted by the manufacturer All need to go through the training mode first, and then download the training results to the inference mode applied by the field-side automatic detection equipment or terminal equipment. In the establishment of the training mode, the biggest problem is that the ratio of good samples and defective samples is very different, and defective samples are obtained. It will also make it difficult to effectively train a model that can identify flaws.
是以,在現今智慧工廠自動化生產的時代,隨著人工智慧技術的應用日漸成為主流,要如何將人工智慧技術導入自動化檢測設備,以進一步降低漏檢率或誤報率,使整體檢測流程縮短、節省大量人力成本和提升產線的產量及良率,同時可收集現場端人工複判的結果作為後續模型訓練的資料,以提升對待測物分類判斷或辨識之精準度,讓檢測的品質更臻完善,則有待從事此行業者重新設計來加以解決。 Therefore, in the current era of automated production in smart factories, with the application of artificial intelligence technology becoming the mainstream, how to introduce artificial intelligence technology into automatic detection equipment to further reduce the missed detection rate or false alarm rate, and shorten the overall detection process. It saves a lot of labor costs and improves the output and yield of the production line. At the same time, it can collect the results of manual re-judgment on the field side as the data for subsequent model training, so as to improve the accuracy of classification judgment or identification of the object to be tested, and improve the quality of testing. If it is perfect, it needs to be redesigned by those engaged in this industry to solve it.
故,發明人有鑑於上述缺失,乃搜集相關資料,經由多方的評估及考量,並以從事於此行業累積之多年經驗,持續的試作與修改,始設計出此種可收集現場端人工複判的結果以作為後續分類模型再訓練的資料之自動檢測系統及其操作方法的發明專利誕生。 Therefore, in view of the above-mentioned deficiencies, the inventor collected relevant information, through multiple evaluations and considerations, and with years of experience in this industry, continuous trial work and revision, before designing this kind of collection site-end manual review. The result of the invention was born with the invention patent of the automatic detection system and its operation method as the data for the subsequent classification model retraining.
本發明之主要目的乃在於自動檢測系統採用非侵入式設計可在產線不停機的狀態下安裝,並導入產線中已有的機器視覺檢測裝置, 當機器視覺檢測裝置檢測出具有瑕疵的待測物圖像時,可由人工智慧模組以深度學習演算法自動進行瑕疵的分類推斷,並由處理平台將人工智慧模組對待測物的圖像分類推斷的結果,以自動插入或填寫的方式疊加到修復站的操作畫面上進行顯示,以減少人工所需要檢測的項目,讓操作員可專注於複判,並提升作業的品質,當操作員進行複判時,處理平台便會攔截操作員通過輸入單元輸入的人工複判的結果資料,再發送給人工智慧模組作為後續自動化進行分類模型再訓練學習所需的資料,以進一步降低自動檢測系統的誤報率,讓檢測的品質更臻完善。 The main purpose of the present invention is that the automatic inspection system adopts a non-invasive design and can be installed without stopping the production line, and introduces the existing machine vision inspection device in the production line, When the machine vision detection device detects the image of the object to be tested with defects, the artificial intelligence module can automatically perform the classification and inference of the defects with the deep learning algorithm, and the processing platform classifies the image of the object to be tested by the artificial intelligence module The inferred results are displayed on the operation screen of the repair station in the form of automatic insertion or filling, so as to reduce the items that need to be checked manually, so that the operator can focus on the re-judgment and improve the quality of the operation. When re-judging, the processing platform will intercept the result data of the manual re-judgment input by the operator through the input unit, and then send it to the artificial intelligence module as the data required for subsequent automatic classification model re-training and learning, so as to further reduce the automatic detection system. The false alarm rate is higher, so that the quality of the detection is more perfect.
本發明之次要目的乃在於當操作員判斷圖像AI標記的瑕疵與其標記的不同時,則表示AI分類推斷的結果與實際人工複檢標記的結果不同,處理平台會收集人工複判的結果,作為後續人工智慧模組再訓練學習的資料,以達到後續檢測流程對於相同或類似的誤判樣本不再發生誤判情形,藉此可提升分類判斷或辨識之精準度,同時保留操作員過去的所有操作行為,讓操作員熟悉現有系統增加的新功能,也可透過互動式操作畫面縮短操作員的學習曲線,如此,不僅可使檢測流程縮短、單位產能獲得提升,更重要的是,軟硬體都是外掛在原有的自動光學檢測系統上,可有效輕鬆升級原有的系統與設備,同時減少人工複檢繁複的檢測項目,有效降低人力成本、提升產線的產量及良率。 The secondary purpose of the present invention is that when the operator judges that the defects marked by AI in the image are different from those marked by AI, it means that the result of AI classification inference is different from the result of the actual manual recheck marking, and the processing platform will collect the results of manual rechecking. , as the data for retraining and learning of the subsequent artificial intelligence module, so that the subsequent detection process will no longer misjudgment the same or similar misjudged samples, thereby improving the accuracy of classification judgment or identification, while retaining all the operator's past The operation behavior allows operators to familiarize themselves with the new functions added to the existing system, and can also shorten the operator's learning curve through the interactive operation screen. In this way, not only the inspection process can be shortened, the unit capacity can be improved, but more importantly, the software and hardware can be improved. All of them are plugged into the original automatic optical inspection system, which can effectively and easily upgrade the original system and equipment, and at the same time reduce the manual re-inspection of complicated inspection items, effectively reduce labor costs, and improve the output and yield of the production line.
100:自動檢測系統 100: Automatic detection system
101:機器視覺檢測裝置 101: Machine Vision Inspection Device
102:修復站 102: Repair Station
103:人工智慧模組 103: Artificial Intelligence Modules
104:處理平台 104: Processing Platform
200:待測物 200: Object to be tested
300:操作畫面 300: Operation screen
301:待測物的圖像畫面 301: Image screen of the object to be tested
302:待測物放大的圖像畫面 302: The enlarged image screen of the object to be tested
303:視窗 303: Windows
〔第1圖〕係本發明自動檢測系統之架構示意圖。 [Fig. 1] is a schematic diagram of the structure of the automatic detection system of the present invention.
〔第2圖〕係本發明之步驟流程圖。 [Fig. 2] is a flow chart of the steps of the present invention.
〔第3圖〕係本發明攔截操作員輸入複判的結果進行人工智慧訓練並將相同的輸入回傳到修復站之示意圖。 [Fig. 3] is a schematic diagram of the present invention, which intercepts the operator's input re-judgment result for artificial intelligence training and transmits the same input back to the repair station.
〔第4圖〕係本發明將人工智慧分類推斷的結果疊加到操作畫面上之示意圖。 [Fig. 4] is a schematic diagram of superimposing the result of artificial intelligence classification and inference on the operation screen according to the present invention.
為達成上述之目的及功效,本發明所採用之技術手段及其構造,茲繪圖就本發明之較佳實施例詳加地說明其構造與功能如下,俾利完全瞭解。 In order to achieve the above-mentioned purpose and effect, the technical means and structure adopted by the present invention are described in detail as follows with reference to the preferred embodiment of the present invention, so as to be fully understood.
請參閱如第1~4圖所示,係分別為本發明自動檢測系統之架構示意圖、步驟流程圖、攔截操作員輸入複判的結果進行人工智慧訓練並將相同的輸入回傳到修復站之示意圖及將人工智慧分類推斷的結果疊加到操作畫面上之示意圖,由圖中可清楚看出,本發明之自動檢測系統100包含一機器視覺檢測裝置101,用於對機台或輸送帶上運送的待測物200進行取像並檢測出具有瑕疵或缺陷的待測物200;連接該機器視覺檢測裝置101的一修復站102,用於接收該待測物200的圖像並通過一操作畫面300來進行顯示,以輔助一操作員進行人工複檢;連接該機器視覺檢測裝置101的一人工智慧模組103,用於擷取該待測物200的圖像,以自動化進行該待測物200的瑕疵或缺陷的分類推斷;以及連接該修復站102與該人工智慧模組103的一處理平台104,用於接收該人工智慧模組103分類推斷的結果資料,並將其整合疊加於該修復站102的操作畫面300上進行顯示,以輔助該操作員進行人工複判的作業。
Please refer to Figures 1 to 4, which are the schematic diagram of the structure of the automatic detection system of the present invention, the flow chart of the steps, the interception of the operator's input and the result of the re-judgment to perform artificial intelligence training and return the same input to the repair station. The schematic diagram and the schematic diagram of superimposing the result of artificial intelligence classification and inference on the operation screen. It can be clearly seen from the figure that the
本發明另外提供一種自動檢測系統之操作方法,其中該自
動檢測系統100包含上述之機器視覺檢測裝置101、修復站102、人工智慧模組103及處理平台104,該方法包含下列之步驟:
The present invention further provides an operation method of an automatic detection system, wherein the automatic detection system
The
(S101)機器視覺檢測裝置101取得待測物200的圖像,並檢測出具有瑕疵的待測物200。
(S101) The machine
(S102)人工智慧模組103擷取待測物200的圖像進行分類推斷,並通過處理平台104將分類推斷的結果資料自動疊加到修復站102的操作畫面300上。
( S102 ) The
(S103)操作員利用操作畫面300進行人工複檢時,操作員通過使用者介面對修復站102輸入的結果資料會被處理平台104攔截發送至人工智慧模組103,以作為該人工智慧模組103後續自動化進行分類模型再訓練學習所需的資料。
(S103) When the operator uses the
(S104)處理平台104將操作員所輸入的結果資料,以相同的輸入回傳到修復站102。
(S104) The
由圖中及上述之實施步驟可清楚得知,本發明使用之機器視覺檢測裝置101係自動光學檢測(Automated Optical Inspection,AOI)或自動視覺檢測(Automated Visual Inspection,AVI)設備,並利用高精度的相機對機台或輸送帶上運送的待測物200進行取像,以機器視覺技術檢測出具有瑕疵或缺陷的待測物200,且該待測物200較佳實施是以印刷電路板組裝(PCBA)為例,以供機器視覺檢測裝置101可用來檢測電路板上的零件焊錫、組裝後的品質狀況,但並不以此為限,亦可應用在印刷電路板(PCB)、晶片載板、平面顯示器(FPD)、半導體、電子元件或其他製程中進行缺件、孔位、線路、外觀檢查與量測等。
It can be clearly seen from the figure and the above implementation steps that the machine
在本實施例中,至少一個修復站102可通過修復伺服器(Repair Server)取得多台機器視覺檢測裝置101檢測出待測物200的圖像及瑕疵或缺陷資料(AOI Image and Defects)等,並於人工智慧模組103以在線條碼掃描器(Inline Barcode Scanner)自動掃描待測物200上的標籤產品序號(S/N)或部件編號(P/N)後,可通過顯示介面(如VGA/DV I)之通訊協定來取得待測物200的圖像,再利用非侵入式圖像萃取器(N on-intrusive Image Extractor)進行剪裁圖像(Cropped Image)和光學字元辨識(OCR)相關的影像處理,以提取出待測物200的信息和圖像的特徵資料後,便可藉由AI伺服器(AI Server)之運算平台以深度學習技術來自動化進行瑕疵或缺陷的分類推斷等,並利用資料庫(Database)收集與儲存待測物200的信息和圖像的特徵資料,也可使用機器人流程自動化軟體(RPA)自動到製造執行系統(MES)與企業管理平台(SAP)收集資料與前處理,以提供深度學習所需的資料。
In this embodiment, at least one
詳細來說,上述之AI伺服器的深度學習運作,主要可分為模型訓練(Training)和推論(Inference)模式,係透過演算法從資料庫中提取出相關可用的資料,如CSV(逗號分隔值,其檔案以純文字形式儲存表格資料)、圖像或文本等,並對提取出的特徵資料進行預處理,以建立用於識別或分類的模型,用於將無標記的資料進行分群(Clustering),而對於有標記的資料,則可提供模型訓練學習的樣本,找出最佳化的深度學習模型,此一模型經過訓練學習的過程後可作為分類器使用,並將無標記的資料進行識別與分類(Classification),進而能夠自主的執行分類判斷或預測,以完成推論的模式,惟此部分有關人工智慧模組103所採用的
深度學習包含很多種不同的演算法,並在收集資料、建模、訓練、評估、參數調整、預測等流程均不盡相同,但不論是深度學習或機械學習,都屬於人工智慧的範疇,合予陳明。
In detail, the deep learning operation of the above-mentioned AI server can be mainly divided into model training (Training) and inference (Inference) mode, which extracts relevant and available data from the database through algorithms, such as CSV (comma separated) value, whose files store table data in plain text), images or texts, etc., and preprocess the extracted feature data to establish a model for identification or classification, which is used to cluster unlabeled data. ), and for labeled data, you can provide samples for model training and learning to find the optimized deep learning model, which can be used as a classifier after the training and learning process. Recognition and classification (Classification), and then can autonomously perform classification judgment or prediction to complete the inference mode, but this part is related to the
而處理平台103可通過手持式掃描器(Handheld Scanner)自動掃描待測物200上所貼附或列印的產品序號(S/N)或部件編號(P/N)標籤等,並將人工智慧模組103對待測物200的圖像分類推斷的結果(AI Inferenced result)資料以自動插入或填寫的方式疊加(Overlay)到修復站102所對應的使用者介面的模擬器(UI Simulator)上,使操作畫面300可顯示出不同分類推斷的結果,以輔助操作員可目視該操作畫面300進行複判作業,便可減少人工所需檢測的項目,使操作員可專注於複判來提升作業品質,而操作員複判的方式,係通過使用者介面的輸入單元包含但不限於滑鼠、鍵盤或觸控螢幕以進行標記待測物200的圖像瑕疵或缺陷是否為真、分類結果是否正確等,並由處理平台103攔截操作員所輸入的驗證操作或手動檢查的結果(Manual Inspection result)後,再將其輸入的結果或人工複判的結果資料發送給人工智慧模組103之AI伺服器,以自動化進行分類模型的再訓練與驗證流程,同時處理平台103可將攔截到人工複判的結果資料,以相同的輸入回傳到修復站102進行處理。
The
請參閱如第3~4圖所示,本發明適用之自動檢測系統100為採用非侵入式設計,可在產線不停機的狀態下安裝,並導入原有產線中已有的機器視覺檢測裝置101(如自動光學檢測或自動視覺檢測設備),不但可擴充多台機器視覺檢測裝置101與修復站102接續處理,並由人工智慧模組103以條碼掃描器自動掃描待測物200上的標籤,可自動剪裁取
得待測物200的圖像、提取待測物200的信息和機器視覺檢測裝置101檢測的特徵資料,以進行AI訓練和推論,且可透過處理平台103將其分類推斷的結果資料自動疊加到修復站102的操作畫面300中。
Please refer to FIGS. 3 to 4. The
舉例來說,上述之修復站102的操作畫面300包含主機各種的設定、基本操作、檢測條件的設定、選單、資料列表、待測物原始的圖像畫面301、待測物放大的圖像畫面302,以及具有特定的文字、不同的背景顏色或提示色彩並用於代表不同AI分類推斷結果的視窗303等,其中視窗303為處理平台103將人工智慧模組103對待測物200的圖像分類推斷的結果資料自動疊加到操作畫面300中之提示視窗,當操作員目視操作畫面300進行複判時,由於人工智慧模組103會對機器視覺檢測裝置101所檢測出具有瑕疵或缺陷的待測物200進行複檢,不須大量有標記的圖像資料或樣本進行訓練,就可以降低90%以上的誤報率,並將分類推斷的結果疊加到操作畫面300中,讓操作員可依據視窗303顯示出AI分類推斷的結果決定是否要進行人工複檢,包含沒有結果(No Result)、信心十足(Above Confidence)及信心不足(Below Conference),不但在查看結果上更加容易,並可透過互動式操作畫面300指導操作員接受AI分類推斷的結果、減少人工所需要檢測的項目,當檢測的項目大量減少後,操作員就可以專注於複判,提升作業的品質。
For example, the above-mentioned
若是視窗303顯示出AI分類推斷的結果為沒有結果或信心不足時,操作員可通過輸入單元(如滑鼠、鍵盤等)在待測物放大的圖像畫面302上進行標記瑕疵或缺陷是否為真,並在操作畫面300中可提供正確選項及錯誤選項給操作員點選,當操作員判斷圖像上AI標記的瑕疵
或缺陷位置與其標記的位置不同時,則表示AI分類推斷的結果與實際人工複檢所標記的結果不同,可能是AI的模型誤判所導致分類錯誤或人工標記錯誤,需要人工再次確認標記的正確性,處理平台103便會自動攔截操作員所輸入的驗證操作或手動檢查的結果,再將其人工複判的結果資料和圖像等發送給人工智慧模組103之AI伺服器,以自動化進行分類模型的再訓練與驗證流程,並持續訓練AI伺服器的深度學習模型,直到人工智慧模組103能夠自主的執行分類判斷或預測後,或是準確率不再提高就停止訓練,以進一步降低自動檢測系統100之漏檢率或誤報率,讓檢測的品質更臻完善。
If the
此種自動檢測系統100之處理平台103可同時收集人工複判的結果,作為後續人工智慧模組103再訓練學習所需的資料,其中再訓練流程是將經由人工複判的結果資料加入AI伺服器之學習樣本資料庫,使分類模型可自動調整各節點的參數或權重,以達到後續檢測流程對於相同或類似的誤判樣本不再發生誤判情形,藉此提升對待測物200進行分類判斷或辨識之精準度,同時保留了操作員過去的所有操作行為,讓操作員可快速熟悉現有系統增加的新功能,也可透過互動式操作畫面300縮短了操作員的學習曲線,如此一來,不僅可使整體之檢測流程縮短、單位產能獲得提升,更重要的是,軟硬體都是外掛在原有的自動光學檢測系統上,可有效輕鬆升級原有的系統與設備,同時減少人工複檢繁複的檢測項目,有效降低人力成本、提升產線的產量及良率。
The
上述詳細說明為針對本發明一種較佳之可行實施例說明而已,惟該實施例並非用以限定本發明之申請專利範圍,凡其他未脫離本發 明所揭示之技藝精神下所完成之均等變化與修飾變更,均應包含於本發明所涵蓋之專利範圍中。 The above detailed description is only for describing a preferred feasible embodiment of the present invention, but this embodiment is not intended to limit the scope of the patent application of the present invention, and all others do not depart from the present invention Equivalent changes and modifications made under the spirit of the art disclosed in the disclosure shall be included in the scope of the patent covered by the present invention.
綜上所述,本發明之自動檢測系統及其操作方法使用時為確實能達到其功效及目的,故本發明誠為一實用性優異之發明,為符合發明專利之申請要件,爰依法提出申請,盼 審委早日賜准本案,以保障發明人之辛苦發明,倘若 鈞局審委有任何稽疑,請不吝來函指示,發明人定當竭力配合,實感德便。 To sum up, the automatic detection system and its operation method of the present invention can indeed achieve its effect and purpose when used, so the present invention is an invention with excellent practicability. , I hope that the review committee will approve the case as soon as possible to protect the inventor's hard work. If the review committee has any doubts, please do not hesitate to send a letter for instructions, and the inventor will do his best to cooperate.
100:自動檢測系統 100: Automatic detection system
101:機器視覺檢測裝置 101: Machine Vision Inspection Device
102:修復站 102: Repair Station
103:人工智慧模組 103: Artificial Intelligence Modules
104:處理平台 104: Processing Platform
200:待測物 200: Object to be tested
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