TW200835563A - Optical system to detect the shape, holes, and edge crack of steel belt - Google Patents

Optical system to detect the shape, holes, and edge crack of steel belt Download PDF

Info

Publication number
TW200835563A
TW200835563A TW96106112A TW96106112A TW200835563A TW 200835563 A TW200835563 A TW 200835563A TW 96106112 A TW96106112 A TW 96106112A TW 96106112 A TW96106112 A TW 96106112A TW 200835563 A TW200835563 A TW 200835563A
Authority
TW
Taiwan
Prior art keywords
hole
steel strip
edge
shape
image
Prior art date
Application number
TW96106112A
Other languages
Chinese (zh)
Other versions
TWI312705B (en
Inventor
yong-yi Yang
Wen-Jie Li
Qiu-Yi He
Original Assignee
China Steel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Steel Corp filed Critical China Steel Corp
Priority to TW96106112A priority Critical patent/TW200835563A/en
Publication of TW200835563A publication Critical patent/TW200835563A/en
Application granted granted Critical
Publication of TWI312705B publication Critical patent/TWI312705B/zh

Links

Landscapes

  • Length Measuring Devices By Optical Means (AREA)

Abstract

The present invention provides an optical system to detect the shape, holes, and edge crack of steel belt, which is applied in performing the 3D measurement of a proceeding steel belt. The system comprises a first detection device to generate the first shape information set of steel belt, and a man-machine interface unit to provide the first shape information set of steel belt for the operator. The first detection device comprises an image-sensing unit set, a background light source, and an image-analyzing processing unit. The image-analyzing processing unit generates a hole-detection information and an edge-creak detection information. The first shape information set of steel belt comprises the hole-detection information and an edge-creak detection information. The system of the present invention can be applied for detecting the holes and edge cracks, and the man-machine interface unit can provide the information for the operator to execute the corresponding processing.

Description

200835563 九、發明說明: 【發明所屬之技術領域】200835563 IX. Description of invention: [Technical field to which the invention belongs]

一種鋼 本發明是有關於一種鋼帶偵測系統 帶外形、孔洞及邊裂之光學偵測系統。 【先前技術】 現有之鋼廠’有此長期A An 月一反功以來亚播鋼帶外形量 僅能依賴操作人員以人工方式利用捲尺進行鋼帶:;、、先二 測,由於量測完整鋼帶外形數據所需之時間相當長見度f 作人員-般只能對鋼帶就部分位置進行取樣量剛。且:細 鋼帶外形之孔洞缺陷及邊裂缺陷,在鋼帶高速行進之= 下,亦無法仰賴人工目視全面檢測出來。 曰近年來,國内外已經發展出許多有關鋼帶外形之光學 量測系統。一習知鋼帶外形之光學量測系統是利用光學= 射裔及感測元件進行鋼帶外形量測。通常,光學投射器可 設置於鋼帶上方,而感測元件設置於鋼帶下方。其量測原 理為,計算感測元件感光強度的位置以對應出鋼帶之寬度 。但因其量測精度是依感測元件數目多募而定,如需較高 的Ϊ測精度,則需裝置較多的感測元件,價格亦會隨之提 南許多 °BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to an optical detection system for a strip detection system with a shape, a hole and a side crack. [Prior Art] The existing steel mills have the long-term A An month after the counter-work. The shape of the sub-strip steel belt can only rely on the operator to manually use the tape to carry out the steel strip:;,, the second test, due to the complete measurement The time required for the shape data of the strip is quite long. The person can only sample the position of the strip on the steel strip. Moreover, the hole defects and edge crack defects of the shape of the thin steel strip cannot be completely detected by manual visual observation under the high speed travel of the steel strip. In recent years, many optical measurement systems for the shape of steel strips have been developed at home and abroad. An optical measuring system for the shape of a steel strip is to measure the shape of the steel strip using optical = projection and sensing elements. Typically, an optical projector can be placed over the steel strip and the sensing element is placed under the steel strip. The measurement principle is to calculate the position of the photosensitive element of the sensing element to correspond to the width of the strip. However, because the measurement accuracy is based on the number of sensing components, if you need higher accuracy, you need to install more sensing components, and the price will be increased.

另一習知鋼帶外形之光學量測系統是利用電耦合元件 (CCD)攝影機搭配背光燈源進行立體量測。一般而言,ccd 攝影機可架設於鋼帶上方,而背光燈源設置於鋼帶下方。 其量測原理為,計算出CCD攝影機掃描感光得到的鋼帶像 素(pixel)與鋼帶實際位置之關係,然後利用此關係將CCD 5 200835563 2::件到的鋼帶像素反推到鋼帶實際位置,以量測鋼帶 影機每掃描—次即=貝ϋ處理方面’採用較CCD攝 帶像素之#里 彳异鋼f見度,並無比較每次掃描間鋼 統可經由判斷每:二無法做到邊裂缺嶋。且雖然本系 ,以判斷铜•/帶像素中是否有被感光的像素 故帀疋否具有孔洞,但無法計算孔洞面積的大小 以確認_到的孔洞是否為孔洞缺陷。 :此’該等習知鋼帶外形量測方法與系統多半僅 鋼f外形進行|丨. /、,…法偵測鋼帶之孔洞缺陷及邊裂缺陷 亚P日守通知操作人員; 上述之缺點。、有’、要*求—解決之道,以改善 【發明内容】 及邊=光i:明之目的’即在提供一種鋼帶外形、孔洞 測系統,適用於對-產線上行進中之-鋼 π進行立體量测。 別 是包笛本發明鋼帶外形、孔洞及邊裂之光學偵測系統 裝置裝人機介面單元。該第, . 鋼贡外形貧訊組。該人機介面單元用 弟—鋼帶外形資馳提供給-操作人員。 =偵測裝置包括-影像感測單元組、一背景光源 像❹^ 處理單元。該鋼帶位於該背景光源與該影 iJi、C之間。該影像感測單元組用以進行掃描感光Another optical measuring system for the shape of a steel strip is to perform stereo measurement using an electric coupling element (CCD) camera with a backlight source. In general, a ccd camera can be placed above a steel strip and a backlight source placed under the steel strip. The measurement principle is to calculate the relationship between the pixel of the steel strip obtained by scanning the CCD camera and the actual position of the steel strip, and then use this relationship to push the CCD 5 200835563 2:: piece of the steel strip pixel back to the steel strip. The actual position, to measure the steel belt camera per scan - the time is = the shellfish treatment aspect 'takes more than the CCD camera with the pixels in the # 彳 彳 steel f visibility, there is no comparison between each scan of the steel system can be judged by each : Two can't do the edge crack. And although this system determines whether there is a hole in the copper//pixel with pixels, it does not have a hole, but the hole area cannot be calculated to confirm whether the hole is a hole defect. : This kind of conventional steel strip shape measurement method and system mostly only steel f shape | 丨. /,, ... method to detect the hole defects and edge crack defects of the steel belt. There are ', want to seek - the solution to improve the [invention content] and the side = light i: the purpose of the Ming' is to provide a steel strip shape, hole measurement system, suitable for the on-line production - steel π performs stereo measurement. In addition, it is an optical detection system for the shape, hole and edge crack of the steel strip of the present invention. The first, . Ganggong shape poor group. The man-machine interface unit is supplied to the operator using the shape of the brother-steel belt. = Detection device includes - image sensing unit group, a background light source image ❹ ^ processing unit. The strip is located between the background source and the shadow iJi, C. The image sensing unit group is used for scanning sensitization

厂]硬數像素。該影像分析處理單元具有一鋼 組、一孔洞偵、、目W Z 、、果、、且及邊裂偵測模組。該鋼帶偵测模 200835563 ::用=一像素之灰度值判斷是否偵測到該鋼帶之影 二“亥鋼帶之影像,則該孔洞價測模組用以依據 =!之灰度值判斷是否债測到-孔洞缺陷並產生一孔 訊:該邊裂读測模組用以判斷是否偵測到一邊裂 判、1 &衣偵測貢訊。該第-鋼帶外形資訊組包括 戎孔洞偵測資訊及該邊裂偵測資訊。 、、本發明利用該孔洞摘測模組及該邊裂價測模組,則貞 列孔洞缺及邊裂缺陷,並藉由該人機介面單元將包括該 訊及該邊裂_資訊之第-鋼帶外形資訊組提 供給㈣作人貝’的確可以達到本發明之目的。 【實施方式】 有關本發明之前述及其他技術内容、特點與功效,在 以下配合參考圖式之_個較佳實施例的詳細說明中,將可 清楚的呈現。 多閱圖1與圖2,本發明鋼帶外形、孔洞及邊裂之光學 =測系統之較佳實施例包含ϋ測裝置i、—第二谓測 j置2,及一人機介面單元3。該第一偵测裝置i用以產生 一第一鋼帶外形資訊組;該第二偵測裝置2用以產生一第 鋼π外形貧訊組;該第一及第二鋼帶外形資訊組可透過 、、罔IV、網路傳輸給該人機介面單元3,並藉由該人機介面單元 3提供給一操作人員。 一 °亥第一偵測裝置1包括一背景光源11、一影像感測單 兀組12,及一影像分析處理單元13。該影像分析處理單元 U具有一鋼帶偵測模組131、一孔洞偵測模組132、一邊裂 7 200835563 偵測模組133 組 135。 、-座標計算模組134,及_外㈣ 據計算模 本發明之系統適用於對一產線上外_结 中之-鋼帶4進行立體量測。其中,;:弟::向Υ行進 必_ 4在該產後上 以一速度Wmm/W移動。在本較佳實施例 、、: 置1是架設於該產線上之-鄰近進料端處51,二债2 裝置2是架設於該產線上之一鄰近出料端處52^^= f 測裝置2之組成單元與模組如同該第—偵測裳置 設之位置有所不同。 丨里/、木 該第-偵測裝置!之背光燈源u是 議率為細z),沿-垂直於該第— 。又置’且位於該鋼帶4之下方。該影像 二 二影像感測單…分別為-掃描頻率為二:: CCD攝影機’其中,/=咖扣必 設置於該鋼帶4之上方,並以卜第像感測單元121 輔:第周“等影像感測單元121對準該背光燈源u之中心 :三方向z垂直於該第-方向Y與第二方向x。 圖3與圖4 ’說明仙本發明之系統對該鋼 二孔洞及邊裂之_。由於該第二仙裝置2 ==同該第一_裝置i,故以下 衮置1之步驟進行說明。 丨只 在步驟411中,該耸旦/ 線’每—掃描線單元121㈣“掃描 影像6,在本較佳# 素’以形成—㈣从之二維(2-D) ^土心例中,1=彻且^2_。 8 200835563 在步驟412中,該影像分析處理單元13之鋼帶偵測模 組131,利用一預設閥值對該二維影像6的該等像素之灰产 值進行比較’以將該等像素分類為一亮區及一暗區。若二歹 二維影像6中有像素被分類為該暗區,繼而進行以下判斷 條件··判斷該亮區之像素與暗區之像素是否依一特定的方 式排列(即,如圖4所示之亮區61、暗區62與亮區61的方 式排列);若是,則判斷一暗區寬度%是否大於一預設暗區 見度,若是,則偵測到該鋼帶4之影像,且該暗區62之像 素屬於該鋼帶4之影像。若已偵測到該鋼帶4之影像,則 繼續進行步驟413之處理;否則,回到步驟411繼續進行取 像。其中,該預設暗區寬度定義為: W(pixel) 。在本較佳實施例中 该最小量測寬度為600wm,該最大寬度量測範圍是依據各 個產線所生產鋼帶4之一最大寬度加上鋼帶4之一最大偏 移量而定。 參閱圖1、圖3與圖5,在步驟413中,該鋼帶偵測模 、、且⑶找出該鋼帶4之影像中,&亮區變暗區,及由暗區 變亮區之鋼帶邊緣71。 在步驟421中,該影像分析處理單元13之孔洞偵測模 200835563 組132 在屬於該崎4 4影像的暗區之像素内,是否 存在被分類為該亮區的像素,若是,則偵測到一孔洞Μ之 影像。若已個到該孔洞72之影像,則繼續進行㈣422 之處理;否則,進行步驟43之處理。 在步驟422中,該孔洞偵測模組132進一步計算一孔 洞長度L2、一孔洞寬度%及一孔洞位置(即,關;邊緣 71與該孔洞72中心之-距離D)。純孔洞長度、孔洞 寬度%及孔触置符合-焊道狀設定時,則判斷該孔洞 72屬於焊道孔’否則,判斷該孔洞72屬於孔洞缺陷。判斷 完該孔洞所屬類型後,即可產生—孔洞偵測資訊。該孔洞 長度L、孔洞寬度%,及距離D之計算方式如下· = N L2{pixel)x V (mm / s) f (pixel / s) W2 =~2(如/)\鲞大寬度量^^^{^ · w {pixel) , 拳态寬度量涓· W {pixel) ’ 其中,心2為該孔洞72沿該第—方向γ之像素數目, 為該孔洞72沿該第二方向X之像素數目,% 72中心沿該第二方向X距離該鋼帶邊緣的像素數目/ 在步驟43中,該影像分析處理單元13之座標叶曾模 組134將料影減測單元121取得之影像座標轉換:實 際空間之座標位置,並依據該鋼帶邊緣71求得實際空間之 10 200835563 一鋼帶邊緣座標組。 在步驟4*41 xi? _’該影像分析處理單元13之邊㈣測模 又母-欠掃描量測得到的鋼帶邊緣座標組,當前後 鋼帶邊緣座標纟且之旦 、之里測值大於一預設邊裂閥值時,則判斷 為谓測到一邊裂^ .. 之衫像。右已偵測到該邊裂73之影傻 ’則繼續進行步驟4幻虚 ^ 州之處理,否則,進行步驟45之處理 ,在乂驟442 +,該邊裂摘測模組133進-步計算一邊 尤長3 1^衣見I %,其計算方式類似於該孔洞長度 ^及孔洞寬度%’故不再贅述。若該邊裂長度Μ及邊裂宽 度恥符合_開凹之設定時,關斷該邊裂73屬於開凹, 否則,判斷該邊裂73屬於邊裂缺陷。判斷完該邊裂所屬類 塑後,即可產生一邊裂偵測資訊。 在步驟45 +,該影像分析處理單元13之外形數據計 算模組135依據該鋼帶邊緣座標組計算該鋼帶*之一寬度 、一彎曲度、一偏移量,及一頸縮量,分別敘述如下。見又 參閱圖2與圖6 ’若將該等影像感測單元ΐ2ι(即,ccd 攝影機)鏡心、該鋼帶邊緣71,及該等影像感測單元ΐ2ι内 像素之對應投影點連線,可分別得到盥 L,、Ur,及 L2l 氳 L2r。LlL 與 L2L 交點 MXl,ZL),LJr 與 L2r 交點為 w,z:) 。該鋼帶4之寬度為:λ] (X L - X 。 藉由連續求得該鋼帶邊緣座標組, …叫叫4 一 -81位置座標。該偏移量即為該鋼帶4由、仏 1 r心綠81與 心 線 以計算出該鋼帶4 11 200835563 產線中心線82之距離ΔΧ。 參閱圖2與圖8,將該鋼帶4頭尾兩端之中心點連成一 量測線83’該量測線83之直線方程式為:”㈣+办,其中 ’所為直線斜率,6為截距。該鋼帶4中心線Μ距離該量 測線83帛遠點(uc)可用以求得該彎曲值。該彎曲值即 為 \XC -mxYr -b\Factory] hard digital pixels. The image analysis processing unit has a steel group, a hole detection, a mesh W Z , a fruit , and an edge crack detection module. The steel strip detection mode 200835563:=================================================================================== The value determines whether the debt is measured - the hole defect and generates a hole: the edge crack reading module is used to determine whether a side crack detection, 1 & clothing detection tribute is detected. The first steel strip shape information group The device includes the hole detection information and the edge crack detection information. The invention utilizes the hole extraction module and the edge crack price measurement module, and the hole defect and the edge crack defect are arranged, and the human machine interface is used The unit will include the information and the edge-information-steel strip shape information group provided to (4) Zuibei's can indeed achieve the purpose of the present invention. [Embodiment] The foregoing and other technical contents and features of the present invention are related to The effect will be clearly shown in the following detailed description of the preferred embodiment with reference to the drawings. Referring to Figure 1 and Figure 2, the optical profile, hole and edge crack of the steel strip of the present invention is measured. The preferred embodiment includes a detecting device i, a second predator j, and a human machine The first detecting device (i) is configured to generate a first steel strip shape information group; the second detecting device 2 is configured to generate a second steel π shape poor group; the first and second steel strips The shape information group can be transmitted to the human interface unit 3 through the network, and can be provided to an operator through the human interface unit 3. The first detection device 1 includes a background light source 11 An image sensing unit 12 and an image analysis processing unit 13. The image analysis processing unit U has a steel strip detecting module 131, a hole detecting module 132, and a side cracking 7 200835563 detecting module. 133 group 135., - coordinate calculation module 134, and _ outside (four) According to the calculation model, the system of the present invention is suitable for stereoscopic measurement of the steel strip 4 in the outer-outline of the production line. Among them; The travel to the crucible must be moved at a speed Wmm/W during the post-production. In the preferred embodiment, the first set is placed at the adjacent feed end 51 of the production line, and the two debt 2 device 2 is Arranged on one of the production lines adjacent to the discharge end 52^^= f The components and modules of the measuring device 2 are like the first detecting The position is different. The backlight source u of the 丨 / / 木, the detection source! is the thinness z), along the - perpendicular to the first - and then 'and' is located in the steel strip 4 Below, the image 22 image sensing list is respectively - the scanning frequency is two:: CCD camera 'where the /= coffee button must be placed above the steel strip 4, and supplemented by the image sensing unit 121: The first week "the equal image sensing unit 121 is aligned with the center of the backlight source u: the three directions z are perpendicular to the first direction Y and the second direction x. Fig. 3 and Fig. 4' illustrate the system of the invention of the present invention. Since the second device 2 == is the same as the first device i, the following steps are described.丨 only in step 411, the radiant/line 'per-scan line unit 121 (four) "scans the image 6, in the preferred one" to form - (d) from the two-dimensional (2-D) ^ soil core example, In the step 412, the steel strip detection module 131 of the image analysis processing unit 13 compares the gray production values of the pixels of the two-dimensional image 6 by using a preset threshold. 'Classify the pixels into a bright area and a dark area. If a pixel in the two-dimensional image 6 is classified as the dark area, then the following judgment conditions are made: · judge the pixel and the dark area of the bright area Whether pixels are arranged in a specific manner (ie, arranged in the manner of bright area 61, dark area 62 and bright area 61 as shown in FIG. 4); if yes, determining whether a dark area width % is greater than a predetermined dark area If yes, the image of the steel strip 4 is detected, and the pixel of the dark area 62 belongs to the image of the steel strip 4. If the image of the steel strip 4 has been detected, the processing of step 413 is continued; Otherwise, the process returns to step 411 to continue the image acquisition, wherein the preset dark zone width is defined as: W (pixel). In the embodiment, the minimum measurement width is 600 wm, and the maximum width measurement range is determined according to the maximum width of one of the steel strips 4 produced by each production line plus the maximum offset of one of the steel strips 4. See Figure 1 3 and FIG. 5, in step 413, the steel strip detects the mold, and (3) finds the image of the steel strip 4, & darkened area of the bright area, and the edge of the steel strip 71 of the darkened area In step 421, the hole detection mode 200835563 group 132 of the image analysis processing unit 13 has pixels classified as the bright area in the pixels belonging to the dark area of the image, and if so, detects If there is an image of the hole 72, if the image of the hole 72 is reached, the processing of (4) 422 is continued; otherwise, the processing of step 43 is performed. In step 422, the hole detecting module 132 further calculates a hole length L2. , a hole width % and a hole position (ie, off; edge 71 and the center of the hole 72 - distance D). Pure hole length, hole width % and hole contact conform to - bead shape setting, then determine the hole 72 belongs to the weld bead hole. Otherwise, it is judged that the hole 72 belongs to the hole defect. After determining the type of the hole, the hole detection information can be generated. The hole length L, the hole width %, and the distance D are calculated as follows: = N L2{pixel) x V (mm / s) f (pixel / s) W2 =~2 (such as /) \ 鲞 large width ^ ^ ^ {^ · w {pixel) , the width of the fist state 涓 · W {pixel) 'where the heart 2 is the hole 72 along the first - The number of pixels of the direction γ is the number of pixels of the hole 72 along the second direction X, and the number of pixels of the center of the strip 72 along the second direction X is the distance from the edge of the strip/in step 43, the image analysis processing unit 13 The coordinate leaf sub-module 134 converts the image coordinates obtained by the shadow reduction unit 121: the coordinate position of the actual space, and obtains the actual space of the steel strip edge 71 according to the steel strip edge 71. In step 4*41 xi? _' the edge of the image analysis processing unit 13 (4), the edge-to-edge measurement of the steel strip edge measured by the mother-under-scanning measurement, and the current edge of the steel strip edge is measured and measured. When it is greater than a preset edge crack threshold, it is judged that the side of the shirt is detected. The right side has detected the shadow of the edge crack 73, and then proceeds to step 4, the processing of the state, otherwise, the processing of step 45 is performed. At step 442 +, the edge cracking module 133 is further advanced. Calculate the length of the side of the 3 1 ^ clothing to see I %, the calculation method is similar to the hole length ^ and the hole width % ' so will not repeat them. If the edge crack length 边 and the edge crack width shame conform to the setting of the _ 开 recess, the edge crack 73 is turned off, otherwise, the edge crack 73 is judged to be a edge crack defect. After judging the type of the edge crack, the side crack detection information can be generated. In step 45 +, the image analysis processing unit 13 external shape data calculation module 135 calculates a width, a curvature, an offset, and a necking amount of the steel strip * according to the edge band coordinate group of the steel strip, respectively The description is as follows. See also FIG. 2 and FIG. 6 'if the image sensing unit ΐ2ι (ie, ccd camera) mirror core, the strip edge 71, and the corresponding projection point of the pixels in the image sensing unit ΐ2ι,盥L,, Ur, and L2l 氲L2r can be obtained separately. The intersection of LlL and L2L is MXl, ZL), and the intersection of LJr and L2r is w, z:). The width of the steel strip 4 is: λ] (XL - X. By continuously obtaining the edge set of the strip of steel strip, ... is called the coordinate position of 4 - 81 position. The offset is the strip of steel strip 4, 1 r heart green 81 and the heart line to calculate the distance ΔΧ of the steel strip 4 11 200835563 line center line 82. Referring to Fig. 2 and Fig. 8, the center point of the end of the strip 4 is connected into a measuring line 83' The linear equation of the measuring line 83 is: "(4) + do, where 'the slope of the straight line, 6 is the intercept. The center line of the strip 4 is far from the measuring line 83 帛 far (uc) can be used The bending value is obtained. The bending value is \XC -mxYr -b\

Vi + =鋼帶4經過爐區或軋延後,其長度會被拉長,相 。子的見度會縮小。該頸縮量即指該鋼帶4寬度上的變異量 有焊道二;目2與圖3 ’在步驟46中,藉由判斷是否 或開凹以判^否為該鋼帶4之尾端。若是 ㈠之尾端’則進行步驟48;否則,進行步驟Ο。… 在步驟47中,該第一偵 資訊組並透過網^ 、帛積該第一鋼帶外形 操作人員。其中,㈣ U早π 3’以顯示給該 ^ . μ弟一鋼帶外形資訊組包括對庫於,細 ▼ 4之孔洞_訊、邊^貞 /應於该鋼 量,及頸縮量。 、、、 見又、考曲度、偏移 乂驟48中’該第一偵測裳置1儲 # 資訊組之所有資+ 子5亥弟一鋼帶外形 化。 貝科,並進行該第-制裝置!之參數初始 該第一伯测裝詈2 IV* -ΓVi + = steel strip 4 after the furnace zone or rolling, its length will be elongated, phase. The visibility of the child will shrink. The necking amount means that the variation amount of the width of the steel strip 4 has the bead 2; and in FIG. 3, in step 46, the tail end of the steel strip 4 is judged by judging whether or not to open the recess. . If it is the end of (a), proceed to step 48; otherwise, proceed to step Ο. ... In step 47, the first Detective Information Group hoards the first steel strip shape operator through the network. Among them, (4) U early π 3' to display to the ^. μ brothers a steel strip shape information group including the library, fine ▼ 4 holes _, edge ^ 贞 / should be the amount of steel, and the amount of necking. , , , See also, test curvature, offset In step 48, 'The first detection is set to 1 storage # Information Group's all resources + sub- 5 Haidi one steel belt shape. Becco, and carry out the first system! The initial parameter of the first test device 2 IV* -Γ

步驟,以得到” /可經過如同該第-偵測裝置U 亥弟二外形資訊組。該第二鋼帶外形資訊組 12 200835563 亦包括對應於該鋼帶4之孔洞伯測訊 度、弯曲度、偏移量,及頸縮量。由於資訊、寬 是架設於該產線上之鄰近進料端測裝置1 資訊組主要是用於提供該操作 鋼帶外形 二偵測裝i 2是芊設於…/為一預譬資訊;該第 弟:鋼帶外形資訊組主要是用於提供該操作人員二:: 、 組與弟二鋼帶外形資却細、悉 / 過網際網路傳給該人機介面單 、、’、 # a… 早疋3以顯不給該操作人員。 以知作人貝可整合並比較該等資 、 。 f M 〇札、、且以進行對應之動作 綜上所述,該第-鋼帶外形資訊組可提供 該孔洞崎訊、邊裂侦測資訊,及外形數據等:、以作: 分切規劃之參考。而該操作人員可藉由該第二鋼帶外形資 ❹進行確認後,以執行真正的分切或其他對應之動作。、 因此,的確可以達到本發明之目的。The step of obtaining "/ can pass through the shape information group like the first detecting device U. The second steel strip shape information group 12 200835563 also includes the hole measurement degree and the curvature corresponding to the steel strip 4. , offset, and necking amount. Since the information and width are adjacent to the feeding end measuring device set on the production line, the information group is mainly used to provide the operation steel strip shape. .../for a preview information; the first brother: the steel strip shape information group is mainly used to provide the operator two::, group and brother two steel belt shape is fine, learned / over the Internet to the person Machine interface, ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, The first steel strip shape information group can provide the hole roughness, edge crack detection information, and shape data, etc. as: a reference for the slitting plan, and the operator can use the second steel strip After the shape is confirmed, the actual cut or other corresponding action is performed. It is indeed possible to achieve the object of the present invention.

准以上所述者,僅為本發明之較佳實施例而已,當不 :以此限定本發明實施之範圍,即大凡依本發明申請:利 範圍及發明說明内容所作之簡單的等效變化與修飾,皆仍 屬本發明專利涵蓋之範圍内。 【圖式簡單說明】 圖1是一方塊圖,說明本發明鋼帶外形、孔洞及邊裂 之光學偵測系統的一較佳實施例; 圖2是一示意圖,說明本發明較佳實施例在一產線上 之架設位置; 13 200835563 圖3是一流程圖,說明本發明較佳實施例對一 行外形、孔洞及邊裂之偵測; 圖4是一示意圖,說明偵測到該鋼帶之影像時 區與暗區之排列方式· 图5疋示意圖,說明該鋼帶之孔洞與邊裂; 圖6疋不意圖,說明該鋼帶之寬度計算原理; 圖7是一示意圖,說明該鋼帶之偏移量計算原理 圖8疋不意圖,說明該鋼帶之彎曲度計算原理 鋼帶進 ’其亮 :及 14 200835563 【主要元件符號說明】 1 第一偵測裝置 3 人機介面單元 11 背景光源 4 鋼帶 12 影像感測單元組 51 鄰近進料端處 13 影像分析處理單 52 鄰近出料端處 元 411〜413 步驟 131 鋼帶偵測模組 421〜422 步驟 132 孔洞偵測模組 43 步驟 133 邊裂偵測模組 441〜442 步驟 134 座標計算模組 45 〜48 步驟 135 外形數據計算模 6 一維影像 組 61 亮區 2 第二偵測裝置 62 暗區 21 背景光源 71 鋼帶邊緣 22 影像感測單元組 72 孔洞 23 影像分析處理單 73 邊裂 元 81 鋼帶中線 231 鋼帶彳貞測模組 82 產線中心線 232 孔洞偵測模組 83 量測線 233 邊裂偵測模組 X 第二方向 234 座標計异模組 Y 第一方向 235 外形數據計算模 Z 第三方向 組 15The above is only the preferred embodiment of the present invention, and does not: limit the scope of the practice of the present invention, that is, the simple equivalent change of the application and the description of the invention Modifications are still within the scope of the invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a preferred embodiment of an optical detecting system for the shape, hole and edge crack of the steel strip of the present invention; FIG. 2 is a schematic view showing a preferred embodiment of the present invention. Positioning position on a production line; 13 200835563 FIG. 3 is a flow chart illustrating the detection of a line shape, a hole and a side crack in a preferred embodiment of the present invention; FIG. 4 is a schematic view showing the image of the steel strip detected Arrangement of time zone and dark zone · Figure 5疋 Schematic diagram showing the hole and edge crack of the steel strip; Figure 6 is not intended to explain the calculation principle of the width of the steel strip; Figure 7 is a schematic diagram showing the deviation of the strip The principle of the calculation of the displacement calculation Fig. 8 is not intended to explain the principle of the calculation of the bending degree of the steel strip. The steel is brought into its 'lights' and 14 200835563 [Description of main components] 1 First detection device 3 Human interface unit 11 Background light source 4 Steel strip 12 image sensing unit group 51 adjacent to the feed end 13 image analysis processing unit 52 adjacent to the discharge end unit 411~413 step 131 strip detection module 421~422 step 132 hole detection module 43 step 133Split detection module 441~442 Step 134 coordinate calculation module 45~48 Step 135 Shape data calculation module 6 One-dimensional image group 61 Bright area 2 Second detection device 62 Dark area 21 Background light source 71 Steel strip edge 22 Image sense Measuring unit group 72 Hole 23 Image analysis processing sheet 73 Edge cracking element 81 Steel strip center line 231 Steel belt testing module 82 Production line center line 232 Hole detection module 83 Measuring line 233 Edge crack detection module X Second direction 234 coordinate metering module Y first direction 235 shape data calculation modulo Z third direction group 15

Claims (1)

200835563 十、申請專利範圍: 1,一種鋼帶外形、孔洞及邊 ^L 之先學偵測系統,適用於斜 -產線上行進中之一鋼帶週用於對 鬼 丁立體$測,該系統包含: 一弟—偵測裝置,用以產 _ ^ 生一弟一鋼帶外形眘却知 ,该弟一偵測裝置包括一麥 貝Λ、、且 ^ 〜像感測單元組、一背景本、、塔 ,一影像分析處理單元,該鋼帶位於,旦,、“ 影像感測單元組之間,心^ ▼位於該u光源與該 ,. 〜像感測單元組用以進杆播> 感光並得到複數像素,該影 ^ 仃知杬 偵測煜έ日 刀析處理單儿具有一鋼帶 貞測杈、、且、一孔洞偵測 .^ 嫌沾、丨η 及一邊裂偵測模組,嗜钿 V偵測模組用以依據每一像 忒鋼 兮如嫌 冢素之灰度值判斷是否偵測刭 4鋼γ之影像,若偵测到該 、、以J 模組用以依據每一像辛…'之衫像,則該孔洞谓測 素之灰度值判斷是否制到-孔洞 、亚產生一孔洞偵測資 e ^ ^ 该邊裂偵測模組用以判斷 ::㈣到一邊裂缺陷並產生-邊裂價測資訊,該;: :外形資訊組包括該孔洞偵測資訊及該邊裂_資訊 一人機介面單元,用以骑Λ 板认 用將该弟一鋼帶外形資訊组接 供給一操作人員。 、且^ 2·依據申請專利範圍第丨 ^ , 貝所述之鋼页外形、孔洞及邊裂 之光學偵測系統,其中 ^ 感測單元。 心㈣測早元組具有二影像 申請專利範圍第2項所述之鋼帶外形、孔洞及 之:學侦測系統,其中,每一影像感測單元為一電= 兀件攝影機。 16 200835563 4.依據申請專利範圍第2 之光學價測系統,其中,該背景洞及邊裂 燈源。 ,、先源為一線狀高頻背光 5·專利範圍第2項所述之鋼帶外形、孔洞及邊穿 測糸統’其中,該鋼帶谓測模組利用一預設閥 值對该等像素之灰度值進行 、Γ 一 W 車又,以將該等像素分類為 冗區及一暗區,若該亮區之像血 、、' -特定方式排列,且—暗區寬度大'日品之像素是依 見度大於—預設暗區宽声, =測到該鋼帶之影像,且該暗區之像素屬於該鋼^ 6· Hi:專利範圍第5項所述之鋼帶外形、孔洞及邊裂 測系統,其中,該孔洞偵測模組判斷在屬於該 =影像的暗區之像素内’是否存在被分類為該亮區 的像素,若是,則偵測到一孔洞之麥像 7. : = _範圍第6項所述之鋼帶外形、孔洞及邊裂 予 統,其卜若該孔洞债測模㈣測到該孔 洞之影像,則進一步計算-孔洞長度、-孔洞寬度及— :洞位置,並依據該孔洞長度、孔洞寬度及孔洞位置判 斷该孔洞是屬於該孔洞缺陷或是一 洞偵測資訊。 U道孔’以產生該孔 8. 依據申請專利範圍第5項所述之鋼帶外形、孔洞及邊裂 之先學偵測系統,其中,該影像分析處理單元更呈有— 座標計算模組,用以求得一鋼帶邊緣座標电。 9. 依據申請專利範圍第8項所述之鋼帶外形、孔洞及邊聲 17 200835563 ίο. 11. 12. i 13. 之光學仙I!系統,其中’該邊裂偵測模組依據該鋼帶邊 緣座標組,判斷是否偵測到一邊裂之影像。 依據申請專利範圍第9項所述之鋼帶外形、孔洞及邊裂 H系統,其中’右邊邊裂偵測模組债測到該邊 裂之影像,則進一步計算-邊裂長度及-邊裂寬度,並 ,據,k裂長度及邊裂寬度判斷該邊裂是屬於該邊裂缺 陷或是一開凹,以產生該邊裂偵測資訊。 、 «申請專利範圍第8項所述之鋼帶外形、孔洞 之光學谓測系統,其中,該影像分析處理單元更具有— 模組,用以依據該鋼帶邊緣座標組,計算 …見度、一彎曲度、-偏移量,及-頸縮量, =一鋼帶外形資訊組包括該鋼帶之寬度、f曲度、偏 私里,及頸縮量。 利?圍第1項所述之鋼帶外形、孔洞及邊裂 1組之二7貝糸統’更包含一用以產生-第二鋼帶外形資 帶外开丄—偵測裝置’藉由該人機介面單元將該第二鋼 ^ V育成組提供給該操作人員。 線上I it統’其中’該第一偵測裝置是架設於該產 =-=料端處’該第二崎置是架 操二::出::處,該第—鋼帶外形資訊組是供該 供奸作! ,而該第二鋼帶外形資訊組是 仏°亥‘作人員作為一確認資訊。 18200835563 X. Patent application scope: 1. A pre-study detection system for the shape, hole and edge of the steel strip. It is suitable for one of the steel strips on the oblique-production line for the stereoscopic measurement of the ghost. Including: a younger-detection device for producing _^shengyidi-steel belt shape is cautious, but the detection device includes a Maibeibei, and ^~ sensing unit group, a background , tower, an image analysis processing unit, the steel strip is located, dan, "between the image sensing unit groups, the heart ^ ▼ is located in the u light source with the, ~ ~ sensing unit group for rodping &gt Sensing and obtaining a plurality of pixels, the shadow 仃 仃 杬 杬 杬 刀 刀 刀 具有 具有 具有 具有 具有 具有 具有 具有 具有 、 、 、 、 、 、 ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ The module, the 钿 钿 V detection module is used to determine whether to detect the image of the 刭 4 steel γ according to the gradation value of each 忒 忒 , , , , , , , , , , , , , , , , , , , , , , , , , According to the image of each shirt like 辛...', the hole is the gray value of the test element to determine whether it is made - hole, Asian The hole detection component e ^ ^ is used to determine: (4) to the side crack defect and generate the edge crack price measurement information, the::: the shape information group includes the hole detection information and the edge Split _ information one man-machine interface unit, used to ride the raft board to identify the brother-steel strip shape information to an operator. ^, and according to the scope of the patent application 丨 ^, shell steel sheet shape , optical detection system for holes and edge cracks, wherein ^ sensing unit. The heart (4) measuring early element group has the shape, the hole and the learning method of the steel strip described in the second application patent scope, wherein Each image sensing unit is an electric=piece camera. 16 200835563 4. The optical price measurement system according to the patent application scope 2, wherein the background hole and the edge splitting light source, , the source is a linear high frequency Backlight 5 · The steel strip shape, the hole and the edge-piercing system described in the second item of the patent range, wherein the steel strip pre-measurement module uses a preset threshold to perform the gray value of the pixels, W car, again, classify the pixels as redundant areas and a dark If the bright area is like blood, '-specifically arranged, and - the dark area is large, the pixel of the daily product is greater than the default dark area wide sound, = the image of the steel strip is measured, and The pixel of the dark area belongs to the steel strip shape, the hole and the edge cracking detection system described in the fifth item of the patent scope, wherein the hole detecting module determines that the dark area belongs to the image. In the pixel, 'is there a pixel classified as the bright area, and if so, a gray image of a hole is detected. 7. : = _ The steel strip shape, hole and edge crack described in item 6 of the range are given. If the image of the hole is measured by the hole die (4), the hole length, the hole width and the hole position are further calculated, and the hole is determined to belong to the hole defect according to the hole length, the hole width and the hole position. It is a hole detection information. U-channel hole 'to produce the hole 8. According to the scope of claim 5, the steel strip shape, hole and edge crack detection system, wherein the image analysis processing unit has a - coordinate calculation module Used to obtain the edge coordinate of a steel strip. 9. According to the scope of the patent application, the shape, hole and edge of the steel strip are as follows: 2008. The optical optical I! system of the 13.1 i. With the edge coordinate group, it is judged whether or not the image of the side crack is detected. According to the steel strip shape, hole and edge splitting H system described in claim 9 of the patent application scope, wherein the image of the edge crack is detected by the right side crack detection module, the edge crack length and the edge crack are further calculated. Width, and, according to the k-crack length and the edge crack width, it is judged whether the edge crack belongs to the edge crack defect or an open recess to generate the edge crack detection information. , the optical optical inspection system for the shape of the steel strip and the hole according to the eighth aspect of the patent application, wherein the image analysis processing unit further has a module for calculating the visibility according to the edge coordinate group of the steel strip. A degree of curvature, - offset, and - necking, = a strip shape information group including the width of the strip, f curvature, partial privacy, and necking. Lee? The shape of the steel strip, the hole and the edge split 1 in the first item, the 7th shell of the steel strip, further includes a second steel strip shape, and the outer strip opening-detecting device is used by the person. The machine interface unit provides the second steel group to the operator. On the line I it's 'where the first detection device is erected at the end of the production =-= material', the second rally is the frame operation:::::, the first - steel strip shape information group is For this traitor! And the second steel strip shape information group is 仏°海's staff as a confirmation information. 18
TW96106112A 2007-02-16 2007-02-16 Optical system to detect the shape, holes, and edge crack of steel belt TW200835563A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW96106112A TW200835563A (en) 2007-02-16 2007-02-16 Optical system to detect the shape, holes, and edge crack of steel belt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW96106112A TW200835563A (en) 2007-02-16 2007-02-16 Optical system to detect the shape, holes, and edge crack of steel belt

Publications (2)

Publication Number Publication Date
TW200835563A true TW200835563A (en) 2008-09-01
TWI312705B TWI312705B (en) 2009-08-01

Family

ID=44819746

Family Applications (1)

Application Number Title Priority Date Filing Date
TW96106112A TW200835563A (en) 2007-02-16 2007-02-16 Optical system to detect the shape, holes, and edge crack of steel belt

Country Status (1)

Country Link
TW (1) TW200835563A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102672001A (en) * 2011-03-16 2012-09-19 宝山钢铁股份有限公司 Method for positioning edge crack of steel coil
CN106524919A (en) * 2016-12-29 2017-03-22 湖南文理学院 Equipment used for detecting punching steel band
TWI711801B (en) * 2019-09-18 2020-12-01 中國鋼鐵股份有限公司 Method for detecting the position of holes in strip product
TWI814677B (en) * 2023-02-10 2023-09-01 中國鋼鐵股份有限公司 Defect detection method and defect detection system using the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11055858B2 (en) * 2017-03-14 2021-07-06 Jfe Steel Corporation Method and apparatus for measuring meandering amount of strip, and method and apparatus for detecting abnormal meandering of strip

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102672001A (en) * 2011-03-16 2012-09-19 宝山钢铁股份有限公司 Method for positioning edge crack of steel coil
CN102672001B (en) * 2011-03-16 2014-07-23 宝山钢铁股份有限公司 Method for positioning edge crack of steel coil
CN106524919A (en) * 2016-12-29 2017-03-22 湖南文理学院 Equipment used for detecting punching steel band
TWI711801B (en) * 2019-09-18 2020-12-01 中國鋼鐵股份有限公司 Method for detecting the position of holes in strip product
TWI814677B (en) * 2023-02-10 2023-09-01 中國鋼鐵股份有限公司 Defect detection method and defect detection system using the same

Also Published As

Publication number Publication date
TWI312705B (en) 2009-08-01

Similar Documents

Publication Publication Date Title
CN102175700B (en) Method for detecting welding seam segmentation and defects of digital X-ray images
US20080055591A1 (en) Apparatus and methods for two-dimensional and three-dimensional inspection of a workpiece
CN109900711A (en) Workpiece, defect detection method based on machine vision
CN112629441B (en) 3D curved surface glass contour scanning detection method and system
CN104101600A (en) Method and apparatus for detecting fine cracks on cross section of continuous casting slab
JP6079948B1 (en) Surface defect detection device and surface defect detection method
CN108469437B (en) Method and device for detecting defects of float glass
TW200835563A (en) Optical system to detect the shape, holes, and edge crack of steel belt
CN110084787B (en) Synthetic leather gluing online monitoring method based on machine vision
CN113340909B (en) Glue line defect detection method based on machine vision
CN107133962A (en) A kind of diamond saw blade extracting thermal crack method based on rim detection
CN104583761A (en) Defect inspection apparatus, and defect inspection method
CN114486732B (en) Ceramic tile defect online detection method based on line scanning three-dimension
TW201445133A (en) Online detection method for three dimensional imperfection of panel
CN101696876B (en) Visual detection method for VCM magnetic steel
CN110602299B (en) Appearance defect detection method based on different inclination angles
KR101935979B1 (en) Plate glass inspection device, plate glass inspection method, plate glass manufacturing device, and plate glass manufacturing method
CN115830021B (en) Metal surface defect detection method for hardware machining
García et al. Rail surface inspection system using differential topographic images
Zou et al. Laser-based precise measurement of tailor welded blanks: a case study
CN115014142A (en) Steel tape scale error measuring method based on machine vision
CN108896609B (en) Metal material discontinuity alternating current-direct current excitation detection device and method
CN114529493A (en) Cable appearance defect detection and positioning method based on binocular vision
CN106225741B (en) A method of losing width in measurement large thickness ratio workpiece side
KR101086333B1 (en) Detection method of surface defect on strip

Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees