TWI511808B - Controlling method of shielding apparatus - Google Patents
Controlling method of shielding apparatus Download PDFInfo
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- TWI511808B TWI511808B TW103121732A TW103121732A TWI511808B TW I511808 B TWI511808 B TW I511808B TW 103121732 A TW103121732 A TW 103121732A TW 103121732 A TW103121732 A TW 103121732A TW I511808 B TWI511808 B TW I511808B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Description
本發明是有關於一種控制方法，且特別是有關於一種遮蔽裝置的控制方法。The present invention relates to a control method, and more particularly to a method of controlling a screening device.
隨著冶煉技術的發展，多數的煉鋼廠已利用各種運輸軌道進行連續製程的方式來製造鋼鐵產品，藉以降低製作成本。在連續製程之中，通常會利用水冷系統來降低熱軋步驟後的鋼板溫度，以使鋼板的機械性質維持在預期範圍內。然而，實際上在利用水冷系統對鋼板進行冷卻步驟時，鋼板的外周緣(後稱邊部)會產生過冷現象，亦即鋼板的邊部的冷卻速率高於鋼板的中心區域，此將導致鋼板整體的機械性質不均勻，亦有可能使冷卻後的鋼板彎曲變形。With the development of smelting technology, most steel mills have used various transportation tracks to carry out continuous processes to manufacture steel products, thereby reducing production costs. In a continuous process, a water cooling system is typically utilized to reduce the temperature of the steel sheet after the hot rolling step to maintain the mechanical properties of the steel sheet within the desired range. However, in actuality, when the steel plate is cooled by the water cooling system, the outer circumference (hereinafter referred to as the edge portion) of the steel sheet may be supercooled, that is, the cooling rate of the edge portion of the steel sheet is higher than the central portion of the steel sheet, which will result in The mechanical properties of the steel sheet as a whole are not uniform, and it is also possible to bend and deform the steel sheet after cooling.
為了減少上述不利於連續製程的因素，通常會在水冷系統與鋼板的邊部之間架設有遮蔽裝置，藉以降低鋼板的邊部的冷卻速率，以使鋼板整體獲得較佳的冷卻均勻度。其中，為了使遮蔽裝置可適用於各種不同尺寸的鋼板，遮蔽裝置通常是可移動式的，並且在調整遮蔽裝置的位置時，是假設鋼板的中心點會位在運輸軌道的中心處，並且依據鋼板的尺寸來預先調整遮蔽裝置的位置。然而，實際上在進行連續製程中，經熱軋步驟後的鋼板的中心點可能 會偏離運輸軌道的中心處，導致遮蔽裝置無法有效遮擋到鋼板的邊部，而使遮蔽裝置無法發揮降低邊部的冷卻效率之效果。In order to reduce the above factors which are not conducive to the continuous process, a shielding device is usually disposed between the water cooling system and the edge of the steel plate, thereby reducing the cooling rate of the edge portion of the steel plate, so that the steel plate as a whole obtains a better cooling uniformity. Wherein, in order to make the shielding device applicable to various steel plates of different sizes, the shielding device is generally movable, and when adjusting the position of the shielding device, it is assumed that the center point of the steel plate is located at the center of the transportation track, and The size of the steel plate is used to adjust the position of the shielding device in advance. However, in practice, in the continuous process, the center point of the steel plate after the hot rolling step may It will deviate from the center of the transport track, and the shielding device cannot effectively block the edge of the steel plate, so that the shielding device cannot exert the effect of reducing the cooling efficiency of the edge portion.
有鑑於此，亟需提出一種遮蔽裝置的控制方法，以解決鋼板的中心點偏離運輸軌道的中心處，而導致現有的遮蔽裝置無法發揮原有效果之問題。In view of this, it is urgent to propose a control method of the shielding device to solve the problem that the center point of the steel plate deviates from the center of the transportation rail, and the existing shielding device cannot exert the original effect.
因此，本發明之一目的在於提供一種遮蔽裝置的控制方法，其可隨著鋼板的中心點與運輸軌道的中心處的偏差值來調整遮蔽裝置的位置。Accordingly, it is an object of the present invention to provide a method of controlling a screening apparatus that adjusts the position of a shielding device with a deviation value between a center point of the steel sheet and a center of the transportation rail.
本發明之另一目的在於提供一種遮蔽裝置的控制方法，其可使待冷卻物件整體具有較佳的冷卻均勻度。Another object of the present invention is to provide a method of controlling a screening apparatus that allows the object to be cooled to have a uniform cooling uniformity as a whole.
根據本發明之上述目的，提出一種遮蔽裝置的控制方法，遮蔽裝置適用以在連續製程中遮蔽待冷卻物件。在一實施例中，利用控制裝置根據預設值調整遮蔽裝置的位置，其中預設值包含待冷卻物件之預設寬度及預設中心座標。對待冷卻物件進行攝影取像步驟以獲得影像。利用控制裝置之影像處理單元對影像進行影像處理步驟，以獲得影像中之待冷卻物件中心座標。利用控制裝置之計算單元計算待冷卻物件中心座標與預設中心座標之偏差值。利用控制裝置根據偏差值調整遮蔽裝置的位置，以遮擋待冷卻物件之邊部。In accordance with the above objects of the present invention, a method of controlling a screening apparatus is provided, the screening apparatus being adapted to shield an item to be cooled in a continuous process. In an embodiment, the position of the shielding device is adjusted according to a preset value by using a control device, wherein the preset value includes a preset width of the object to be cooled and a preset center coordinate. Perform a photographic imaging step on the cooled object to obtain an image. The image processing unit of the control device performs an image processing step on the image to obtain a center coordinate of the object to be cooled in the image. The calculation unit of the control device calculates the deviation value between the center coordinate of the object to be cooled and the preset center coordinates. The position of the shielding device is adjusted according to the deviation value by the control device to block the edge of the object to be cooled.
依據本發明一實施例，上述待冷卻物件係熱軋鋼板。According to an embodiment of the invention, the object to be cooled is a hot rolled steel sheet.
依據本發明一實施例，上述進行攝影取像步驟時包含利用彩色攝影機或紅外線攝影機，且影像為彩色影像。According to an embodiment of the invention, the step of performing the image capturing process comprises using a color camera or an infrared camera, and the image is a color image.
依據本發明一實施例，上述進行影像處理步驟時包含下列步驟。將彩色影像轉換成灰階影像。對灰階影像進行雜訊濾除處理。利用預設閥值，將灰階影像轉換成二值化影像。利用影像處理技術中之分割法，將二值化影像中之白色區塊分割成複數個區塊。對這些區塊進行中心座標計算處理，以獲得待冷卻物件中心座標。According to an embodiment of the invention, the performing the image processing step includes the following steps. Convert color images to grayscale images. Perform noise filtering on grayscale images. The grayscale image is converted to a binarized image using a preset threshold. The white block in the binarized image is divided into a plurality of blocks by using the segmentation method in the image processing technology. The central coordinates calculation process is performed on these blocks to obtain the center coordinates of the objects to be cooled.
依據本發明一實施例，將白色區塊分割成這些區塊之步驟前，上述影像處理步驟更包含利用影像處理技術中之型態學方式，使白色區塊之邊緣平滑化。According to an embodiment of the invention, before the step of dividing the white block into the blocks, the image processing step further comprises smoothing the edge of the white block by using a pattern in the image processing technology.
依據本發明一實施例，上述利用型態學方式包含膨脹(Dilation)處理法則及浸蝕(Erosion)處理法則。According to an embodiment of the invention, the above-described utilization mode includes a Dilation process and an Erosion process.
依據本發明一實施例，上述進行雜訊濾除處理時包含利用影像濾波器。According to an embodiment of the invention, the performing noise filtering process includes using an image filter.
本發明之遮蔽裝置的控制方法係利用攝影取像的非接觸方式來偵測待冷卻物件中心座標，並透過計算單元計算待冷卻物件中心座標與預設中心座標之偏差值，以使控制單元可根據偏差值來即時調整遮蔽裝置的位置。另一方面，由於遮蔽裝置可遮擋待冷卻物件之邊部，所以待冷卻物件整體具有較佳的冷卻均勻度，藉以避免鋼板整體的機械性質不均勻，或冷卻後的鋼板彎曲變形之問題。The control method of the shielding device of the present invention detects the center coordinates of the object to be cooled by using a non-contact method of photographic image capturing, and calculates a deviation value between the center coordinate of the object to be cooled and the preset center coordinates through the calculating unit, so that the control unit can The position of the shielding device is adjusted in time based on the deviation value. On the other hand, since the shielding device can block the edge of the object to be cooled, the object to be cooled has a good uniformity of cooling as a whole, thereby avoiding the problem of uneven mechanical properties of the entire steel plate or bending deformation of the steel plate after cooling.
100‧‧‧控制系統100‧‧‧Control system
110‧‧‧攝影取像裝置110‧‧‧Photographic imaging device
120‧‧‧控制裝置120‧‧‧Control device
121‧‧‧控制單元121‧‧‧Control unit
122‧‧‧影像擷取卡122‧‧‧Image capture card
123‧‧‧影像處理單元123‧‧‧Image Processing Unit
124‧‧‧計算單元124‧‧‧Computation unit
200‧‧‧控制方法200‧‧‧Control method
210、220、230、240、250‧‧‧步驟210, 220, 230, 240, 250‧ ‧ steps
300‧‧‧影像處理方法300‧‧‧Image processing method
310、320、330、340、350、360‧‧‧步驟310, 320, 330, 340, 350, 360‧‧‧ steps
900‧‧‧待冷卻物件900‧‧‧ items to be cooled
901‧‧‧邊部901‧‧‧Edge
910‧‧‧運輸軌道910‧‧‧Transportation track
910a‧‧‧中央處910a‧‧‧Central Office
920‧‧‧水冷系統920‧‧‧Water cooling system
930‧‧‧輥輪930‧‧‧Roller
940‧‧‧遮蔽裝置940‧‧‧shading device
X、Y‧‧‧方向X, Y‧‧ direction
W‧‧‧寬度W‧‧‧Width
為讓本發明之上述和其他目的、特徵、優點與實施 例能更明顯易懂，所附圖式之說明如下：第1A圖係繪示依照本發明一實施例之一種控制系統的運作示意圖。The above and other objects, features, advantages and embodiments of the present invention are made. The example can be more clearly understood, and the description of the drawings is as follows: FIG. 1A is a schematic diagram showing the operation of a control system according to an embodiment of the invention.
第1B圖係繪示依照本發明一實施例之待冷卻物件經過水冷系統的剖面示意圖。FIG. 1B is a schematic cross-sectional view showing the object to be cooled passing through a water cooling system according to an embodiment of the invention.
第1C圖係繪示依照本發明一實施例之一種控制系統的方塊圖。1C is a block diagram showing a control system in accordance with an embodiment of the present invention.
第2圖係繪示依照本發明一實施例之一種遮蔽裝置的控制方法的流程圖。2 is a flow chart showing a method of controlling a screening device according to an embodiment of the invention.
第3圖係繪示依照本發明一實施例之一種影像處理方法的流程圖。FIG. 3 is a flow chart showing an image processing method according to an embodiment of the invention.
以下配合本發明之實施例詳細說明本發明之技術內容、構造特徵、所達成目的及功效。The technical content, structural features, achieved goals and effects of the present invention will be described in detail below with reference to embodiments of the present invention.
在金屬冶煉的領域中，例如煉鋼領域，為了製作出各種成分組成的鋼品，通常會先提供胚料，接著將胚料進行熔煉步驟、澆鑄步驟、精煉步驟及熱軋步驟等一連串之連續製程。當胚料在經過熱軋步驟後，胚料會呈現紅熱的高溫狀態，所以需要降溫胚料(後稱待冷卻物件)。一般，會利用水冷系統來對待冷卻物件進行冷卻處理，以降溫待冷卻物件。In the field of metal smelting, for example, in the steelmaking field, in order to produce steels of various composition compositions, a billet is usually provided first, and then the billet is subjected to a series of continuous steps such as a melting step, a casting step, a refining step, and a hot rolling step. Process. When the billet is subjected to the hot rolling step, the billet will exhibit a red hot high temperature state, so it is necessary to cool the billet (hereinafter referred to as the object to be cooled). Generally, the water cooling system is used to cool the cooled object to cool the object to be cooled.
請參照第1A圖，第1A圖係繪示依照本發明一實施例之一種控制系統100的運作示意圖。控制系統100包含攝影取像裝置110以及控制裝置120。攝影取像裝置110 主要是用來擷取待冷卻物件900之影像。在一例子中，攝影取像裝置110可以是彩色攝影機或紅外線攝影機，並且攝影取像裝置110所擷取之影像為彩色影像。控制裝置120電性連接攝影取像裝置110，且可接收來自攝影取像裝置110所擷取之影像。Please refer to FIG. 1A. FIG. 1A is a schematic diagram showing the operation of a control system 100 according to an embodiment of the invention. The control system 100 includes a photographic imaging device 110 and a control device 120. Photo taking device 110 It is mainly used to capture the image of the object 900 to be cooled. In an example, the image capturing device 110 may be a color camera or an infrared camera, and the image captured by the image capturing device 110 is a color image. The control device 120 is electrically connected to the image capturing device 110 and can receive images captured by the image capturing device 110.
如第1A圖所示，在利用輥輪930對胚料進行熱軋步驟之後，再透過運輸軌道910來運輸待冷卻物件900，以使待冷卻物件900朝水冷系統920的方向前進，藉以冷卻已進行熱軋步驟的待冷卻物件900。請一併參照第1A及1B圖，第1B圖係繪示依照本發明一實施例之待冷卻物件900經過水冷系統920的裝置示意圖。控制裝置120電性連接遮蔽裝置940。其中，控制系統100利用攝影取像裝置110擷取待冷卻物件900的影像，並且控制裝置120根據此影像來控制遮蔽裝置940，以使遮蔽裝置940遮擋待冷卻物件900之邊部901，藉以使待冷卻物件900整體獲得均勻的冷卻速率。As shown in FIG. 1A, after the billet is subjected to the hot rolling step by the roller 930, the object to be cooled 900 is transported through the transport rail 910 to advance the object to be cooled 900 toward the water cooling system 920, thereby cooling the already The object to be cooled 900 to be subjected to the hot rolling step. Referring to FIGS. 1A and 1B together, FIG. 1B is a schematic view showing the apparatus for passing the object to be cooled 900 through the water cooling system 920 according to an embodiment of the present invention. The control device 120 is electrically connected to the shielding device 940. The control system 100 captures the image of the object to be cooled 900 by using the image capturing device 110, and the control device 120 controls the shielding device 940 according to the image, so that the shielding device 940 blocks the edge 901 of the object to be cooled 900, thereby The object to be cooled 900 as a whole obtains a uniform cooling rate.
請參照第1C圖，第1C圖係示依照本發明一實施例之一種控制系統100的方塊圖。控制裝置120主要包含控制單元121、影像擷取卡122、影像處理單元123以及計算單元124。控制裝置120可例如為一電腦設備。Referring to FIG. 1C, FIG. 1C is a block diagram of a control system 100 in accordance with an embodiment of the present invention. The control device 120 mainly includes a control unit 121, an image capture card 122, an image processing unit 123, and a calculation unit 124. Control device 120 can be, for example, a computer device.
在控制裝置120中，控制單元121可根據預設值調整遮蔽裝置940的位置，如第1C圖所示。在一例子中，預設值包含待冷卻物件之預設寬度及預設中心座標。在一示範例子中，如第1B及1C圖所示，由於運輸軌道910原則 上不會移動，可將運輸軌道910的中央處910a設為待冷卻物件900之預設中心座標，接著根據待冷卻物件900的最終產品尺寸來推導待冷卻物件900在進行熱軋步驟後的寬度W做為待冷卻物件900之預設寬度。之後，根據預設中心座標以及預設寬度即可確定待冷卻物件900的邊部901的座標值為何，進而決定初期遮蔽裝置940的所在位置。In the control device 120, the control unit 121 can adjust the position of the shielding device 940 according to a preset value, as shown in FIG. 1C. In an example, the preset value includes a preset width of the object to be cooled and a preset center coordinate. In an exemplary example, as shown in Figures 1B and 1C, due to the principle of transport track 910 Without moving, the central portion 910a of the transport rail 910 can be set as a preset center coordinate of the object to be cooled 900, and then the width of the object to be cooled 900 after the hot rolling step is derived according to the final product size of the object to be cooled 900. W is the preset width of the object to be cooled 900. Then, according to the preset center coordinates and the preset width, the coordinate value of the edge portion 901 of the object to be cooled 900 can be determined, thereby determining the position of the initial shielding device 940.
請再參照第1C圖，影像擷取卡122與攝影取像裝置110電性連接，而可擷取攝影取像裝置110所拍攝之影像。影像擷取卡122也與影像處理單元123電性連接，而可將擷取自攝影取像裝置110的影像傳送至影像處理單元123中。影像處理單元123可對影像擷取卡122所擷取之影像進行影像處理，以獲得影像中之待冷卻物件中心座標。在一例子中，影像中之待冷卻物件中心座標係與前述之預設中心座標採用相同的座標系統。Referring to FIG. 1C again, the image capture card 122 is electrically connected to the image capturing device 110, and the image captured by the image capturing device 110 can be captured. The image capture card 122 is also electrically connected to the image processing unit 123, and the image captured from the image capturing device 110 can be transmitted to the image processing unit 123. The image processing unit 123 can perform image processing on the image captured by the image capture card 122 to obtain a center coordinate of the object to be cooled in the image. In one example, the center coordinate of the object to be cooled in the image is the same coordinate system as the aforementioned predetermined center coordinate.
如第1C圖所示，計算單元124與影像處理單元123電性連接，計算單元124接收經影像處理單元123處理影像所得之待冷卻物件中心座標，並且根據待冷卻物件中心座標與預設中心座標來計算偏差值。在一例子中，偏差值係向量值，亦即偏差值的正負值實質上是代表待冷卻物件的偏差方向，經絕對值處理後的偏差值大小是代表待冷卻物件中心座標偏離預設中心座標的程度。另外，如第1B及1C圖所示，計算單元124又與控制單元121電性連接，控制單元121根據偏差值調整遮蔽裝置940的位置，以遮擋待冷卻物件900之邊部901，以在利用水冷系統920冷卻待 冷卻物件900時，使得待冷卻物件900整體具有較佳的冷卻均勻度。換言之，當待冷卻物件900完成熱軋步驟後，待冷卻物件900的中心可能不是位在預設中心座標上，導致初期遮蔽裝置940的所在位置無法遮擋到待冷卻物件900的邊部901。所以，本發明實施例係透過光學偵側方式來確定待冷卻物件900的偏移量，並且再透過控制單元121對遮蔽裝置940的位置進行修正，以使遮蔽裝置940確實遮擋到待冷卻物件900的邊部901，所以待冷卻物件900整體具有較佳的冷卻均勻度。As shown in FIG. 1C, the computing unit 124 is electrically connected to the image processing unit 123, and the computing unit 124 receives the center coordinates of the object to be cooled obtained by processing the image by the image processing unit 123, and according to the center coordinates of the object to be cooled and the preset center coordinates. To calculate the deviation value. In an example, the deviation value is a vector value, that is, the positive and negative values of the deviation value are substantially representing the deviation direction of the object to be cooled, and the deviation value after the absolute value processing represents that the center coordinate of the object to be cooled deviates from the preset center coordinate. Degree. In addition, as shown in FIGS. 1B and 1C, the calculation unit 124 is electrically connected to the control unit 121. The control unit 121 adjusts the position of the shielding device 940 according to the deviation value to block the edge portion 901 of the object to be cooled 900 to be utilized. Water cooling system 920 cooling When the article 900 is cooled, the object to be cooled 900 as a whole has a better cooling uniformity. In other words, after the object to be cooled 900 completes the hot rolling step, the center of the object to be cooled 900 may not be located on the preset center coordinates, so that the position of the initial shielding device 940 cannot block the edge 901 of the object 900 to be cooled. Therefore, the embodiment of the present invention determines the offset of the object to be cooled 900 through the optical detection mode, and then corrects the position of the shielding device 940 through the control unit 121 so that the shielding device 940 does block the object to be cooled 900. The edge portion 901, so that the object to be cooled 900 as a whole has a better cooling uniformity.
請參照第1A、1C及2圖，第2圖係繪示依照本發明一實施例之一種遮蔽裝置940的控制方法200的流程圖。在本實施例中，進行遮蔽裝置940的控制方法200時，先如同第2圖之步驟210所述，利用控制裝置120根據預設值調整遮蔽裝置940的位置，其中預設值包含待冷卻物件900之預設寬度及預設中心座標。Please refer to FIGS. 1A, 1C and 2, and FIG. 2 is a flow chart showing a control method 200 of a screening device 940 according to an embodiment of the invention. In the present embodiment, when the control method 200 of the shielding device 940 is performed, the position of the shielding device 940 is adjusted according to the preset value by the control device 120 as described in step 210 of FIG. 2, wherein the preset value includes the object to be cooled. 900 preset width and preset center coordinates.
當待冷卻物件900的頭端經過輥輪930後，如步驟220所述，利用攝影取像裝置110對待冷卻物件900進行攝影取像，以獲得待冷卻物件900之影像。在一實施例中，攝影取像裝置110所獲得之影像為彩色影像。接下來，先利用控制裝置120之影像擷取卡122來擷取攝影取像裝置110所拍攝之影像。再將影像擷取卡122所擷取之影像傳送至控制裝置120之影像處理單元123。接著，如步驟230所述，利用影像處理單元123對影像擷取卡122所傳來之影像進行影像處理，以獲得影像中之待冷卻物件中心座標。After the head end of the object to be cooled 900 passes the roller 930, as described in step 220, the object to be cooled 900 is imaged by the photographic image capturing device 110 to obtain an image of the object to be cooled 900. In one embodiment, the image obtained by the image capturing device 110 is a color image. Next, the image captured by the image capturing device 110 is captured by the image capturing card 122 of the control device 120. The image captured by the image capture card 122 is transmitted to the image processing unit 123 of the control device 120. Then, as described in step 230, the image processed by the image capture card 122 is image processed by the image processing unit 123 to obtain the center coordinates of the object to be cooled in the image.
請同時參照第3圖，第3圖係繪示依照本發明一實施例之一種影像處理方法300的流程圖。在一實施例中，由於所獲得之彩色影像係由紅綠藍(RGB)三個頻道的影像所組成，再加上待冷卻物件900屬於紅熱狀態，因此影像之紅色頻道的色差較為明顯。故，如第3圖所示，進行影像處理方法300時，先如同步驟310所述，將彩色影像中紅色頻道的影像灰階值分離出來做分析，藉以將彩色影像轉換為灰階影像。其中，影像灰階值之範圍從0到255。Please refer to FIG. 3 at the same time. FIG. 3 is a flow chart of an image processing method 300 according to an embodiment of the invention. In one embodiment, since the obtained color image is composed of three channels of red, green and blue (RGB) images, and the object to be cooled 900 is in a red hot state, the color difference of the red channel of the image is more obvious. Therefore, as shown in FIG. 3, when the image processing method 300 is performed, the image grayscale value of the red channel in the color image is separated and analyzed as described in step 310, thereby converting the color image into a grayscale image. Among them, the image grayscale value ranges from 0 to 255.
接下來，如同步驟320所述，利用例如影像濾波器對灰階影像進行雜訊濾除處理，以濾除灰階影像之雜訊。對濾除雜訊之灰階影像的灰階值分布進行分析。之後，如同影像處理方法300之步驟330所述，例如以149來當作預設閥值，而將灰階影像轉換成二值化影像。也就是說，此實施例將灰度值超過149的像素均標示為255(白色)，且將灰度值小於149的像素均標示為0(黑色)。如此一來，灰階影像可轉變成僅由白色與黑色像素所構成之二值化影像。在其他實施例中，預設閥值可根據各灰階影像之灰階值分佈而加以調整，並不限於上述實施例之149。Next, as described in step 320, the grayscale image is subjected to noise filtering processing using, for example, an image filter to filter out the noise of the grayscale image. The gray scale value distribution of the gray scale image filtered out of the noise is analyzed. Thereafter, as described in step 330 of image processing method 300, grayscale images are converted to binarized images, for example, using 149 as a preset threshold. That is, this embodiment marks pixels having a gray value of more than 149 as 255 (white), and pixels having a gray value of less than 149 are indicated as 0 (black). In this way, the grayscale image can be converted into a binarized image composed only of white and black pixels. In other embodiments, the preset threshold may be adjusted according to the grayscale value distribution of each grayscale image, and is not limited to 149 of the above embodiment.
接下來，如同步驟340所述，可根據所獲得之二值化影像的平滑程度，選擇性地利用例如影像處理技術中之型態學方式的膨脹(Dilation)處理法則及浸蝕(Erosion)處理法則，使二值化影像中之白色區塊的鋸齒狀邊緣更加的平滑。接著，如同步驟350所述，利用影像處理技術中之分割法，將二值化影像中之白色區塊分割成數個區塊。然後， 如同步驟360所述，對這些區塊進行中心座標計算處理，以獲得待冷卻物件中心座標。Next, as described in step 340, depending on the degree of smoothness of the obtained binarized image, the Dilation process and the Erosion process, such as the patterning method in image processing technology, can be selectively utilized. To make the jagged edges of the white blocks in the binarized image smoother. Next, as described in step 350, the white block in the binarized image is segmented into a plurality of blocks using a segmentation method in the image processing technique. then, As described in step 360, the central coordinates calculation process is performed on the blocks to obtain the center coordinates of the object to be cooled.
完成影像處理後，請再次參照第2圖，如同步驟240所述，利用控制裝置120之計算單元124計算待冷卻物件中心座標與預設中心座標之偏差值。在一例子中，待冷卻物件900的長度方向與運輸軌道的運輸方向相同，並且待冷卻物件中心座標係表示待冷卻物件900在寬度方向之中心座標。在一示範例子中，如第1A及1B圖所示，可將待冷卻物件900的寬度方向及長度方向分別定義為方向X及方向Y，並且方向X與方向Y構成X-Y平面系座標軸。其中，在計算待冷卻物件中心座標與預設中心座標的偏差值時，僅針對X方向的座標進行偏差值之計算。After the image processing is completed, referring to FIG. 2 again, as described in step 240, the calculation unit 124 of the control device 120 calculates the deviation value between the center coordinates of the object to be cooled and the preset center coordinates. In an example, the length direction of the object to be cooled 900 is the same as the transport direction of the transport track, and the center coordinate of the object to be cooled represents the center coordinate of the object to be cooled 900 in the width direction. In an exemplary embodiment, as shown in FIGS. 1A and 1B, the width direction and the length direction of the object to be cooled 900 may be defined as a direction X and a direction Y, respectively, and the direction X and the direction Y constitute an X-Y plane coordinate axis. Wherein, when calculating the deviation value between the center coordinate of the object to be cooled and the preset center coordinate, the deviation value is calculated only for the coordinate in the X direction.
之後，如同步驟250所述，利用控制裝置120根據偏差值調整遮蔽裝置940的位置，以遮擋待冷卻物件900之邊部901。藉此，在利用水冷系統920進行冷卻步驟時，可使得待冷卻物件900整體具有較佳的冷卻均勻度。換言之，如第1A及1B圖所示，在對待冷卻物件900進行熱軋步驟後，待冷卻物件900的中心可能不是位在預設中心座標上，所以初期遮蔽裝置940的所在位置無法遮擋到待冷卻物件900的邊部901。因此，本發明實施例係透過光學偵側方式來確定待冷卻物件900的偏移量，並且再透過控制單元121對遮蔽裝置940的位置進行修正，以使遮蔽裝置940確實遮擋到待冷卻物件900的邊部901，所以待冷卻物件900整體具有較佳的冷卻均勻度。Thereafter, as described in step 250, the position of the screening device 940 is adjusted by the control device 120 based on the offset value to obscure the edge 901 of the item to be cooled 900. Thereby, when the cooling step is performed by the water cooling system 920, the object to be cooled 900 as a whole can have better cooling uniformity. In other words, as shown in FIGS. 1A and 1B, after the hot rolling step of the object to be cooled 900, the center of the object to be cooled 900 may not be located on the preset center coordinates, so the position of the initial shielding device 940 cannot be blocked. The side 901 of the article 900 is cooled. Therefore, the embodiment of the present invention determines the offset of the object to be cooled 900 through the optical side detection mode, and then corrects the position of the shielding device 940 through the control unit 121 so that the shielding device 940 does block the object to be cooled 900. The edge portion 901, so that the object to be cooled 900 as a whole has a better cooling uniformity.
在一例子中，如第1A圖所示，待冷卻物件900是先經過攝影取像裝置110之後，才進入水冷系統920的區域。如第1A及2圖所示，控制裝置120的控制單元121根據偏差值調整遮蔽裝置940的位置的步驟250中，控制單元121可以經過延遲時間始根據偏差值調整遮蔽裝置940的位置。在一示範例子中，待冷卻物件900的頭端在經過攝影取像裝置110擷取影像後約3秒才會進入水冷系統920的區域，則控制單元121可以在3秒的延遲時間後才根據偏差值調整遮蔽裝置940的位置，藉以使遮蔽裝置940確實遮擋待冷卻物件900的邊部901。在其他實施例中，延遲時間可根據攝影取像裝置110與水冷系統920之間的距離加以調整，並不限於上述實施例之3秒。In an example, as shown in FIG. 1A, the object to be cooled 900 enters the area of the water cooling system 920 after passing through the image taking device 110. As shown in FIGS. 1A and 2, in the step 250 of the control unit 121 of the control device 120 adjusting the position of the shielding device 940 based on the deviation value, the control unit 121 can adjust the position of the shielding device 940 according to the deviation value after the delay time. In an exemplary embodiment, the head end of the object to be cooled 900 enters the area of the water cooling system 920 about 3 seconds after the image is taken by the image capturing device 110, and the control unit 121 can be based on the delay time of 3 seconds. The offset value adjusts the position of the screening device 940 such that the screening device 940 does obscure the edge 901 of the item 900 to be cooled. In other embodiments, the delay time may be adjusted according to the distance between the photographic image capturing device 110 and the water cooling system 920, and is not limited to the third embodiment of the above embodiment.
綜上觀之，本發明實施例之遮蔽裝置的控制方法主要是利用攝影取像的非接觸方式來偵測待冷卻物件中心座標，並計算待冷卻物件中心座標與預設中心座標之偏差值，以使控制單元可根據偏差值來不斷調整遮蔽裝置的位置。因此，不論待冷卻物件的實際位置為何，經調整位置後的遮蔽裝置皆可遮擋到待冷卻物件的邊部，進而使待冷卻物件整體具有較佳的冷卻均勻度，藉以避免待冷卻物件整體的機械性質不均勻，或冷卻後的待冷卻物件彎曲變形之問題。In summary, the control method of the shielding device in the embodiment of the present invention mainly uses the non-contact method of photographic image capturing to detect the central coordinate of the object to be cooled, and calculates the deviation between the center coordinate of the object to be cooled and the preset center coordinate. So that the control unit can continuously adjust the position of the shielding device according to the deviation value. Therefore, regardless of the actual position of the object to be cooled, the shielding device after the adjusted position can block the edge of the object to be cooled, thereby further improving the uniformity of cooling of the object to be cooled, thereby avoiding the overall condition of the object to be cooled. The mechanical properties are not uniform, or the problem of bending deformation of the object to be cooled after cooling.
雖然本發明已以實施方式揭露如上，然其並非用以限定本發明，在本發明所屬技術領域中任何具有通常知識者，在不脫離本發明之精神和範圍內，當可作各種之更動 與潤飾，因此本發明之保護範圍當視後附之申請專利範圍所界定者為準。The present invention has been disclosed in the above embodiments, and is not intended to limit the present invention. Any one of ordinary skill in the art to which the present invention pertains can make various changes without departing from the spirit and scope of the invention. And the scope of the present invention is defined by the scope of the appended claims.
100‧‧‧控制系統100‧‧‧Control system
110‧‧‧攝影取像裝置110‧‧‧Photographic imaging device
120‧‧‧控制裝置120‧‧‧Control device
900‧‧‧待冷卻物件900‧‧‧ items to be cooled
910‧‧‧運輸軌道910‧‧‧Transportation track
920‧‧‧水冷系統920‧‧‧Water cooling system
930‧‧‧輥輪930‧‧‧Roller
940‧‧‧遮蔽裝置940‧‧‧shading device
X、Y‧‧‧方向X, Y‧‧ direction
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