JPH0510719A - Electronic part's position detecting method - Google Patents

Electronic part's position detecting method

Info

Publication number
JPH0510719A
JPH0510719A JP3164325A JP16432591A JPH0510719A JP H0510719 A JPH0510719 A JP H0510719A JP 3164325 A JP3164325 A JP 3164325A JP 16432591 A JP16432591 A JP 16432591A JP H0510719 A JPH0510719 A JP H0510719A
Authority
JP
Japan
Prior art keywords
electronic component
rough
electrodes
electronic part
processing
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP3164325A
Other languages
Japanese (ja)
Other versions
JP2985380B2 (en
Inventor
Masamichi Morimoto
正通 森本
Keizo Izumida
圭三 泉田
Junichi Hata
純一 秦
Takashi Shimizu
隆 清水
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP3164325A priority Critical patent/JP2985380B2/en
Publication of JPH0510719A publication Critical patent/JPH0510719A/en
Application granted granted Critical
Publication of JP2985380B2 publication Critical patent/JP2985380B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Supply And Installment Of Electrical Components (AREA)
  • Image Analysis (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Image Input (AREA)
  • Image Processing (AREA)

Abstract

PURPOSE:To detect the position of an electronic part highly precisely at high speed by using an image picking-up means such as a video camera, etc. CONSTITUTION:In an area to carry out digital image processing process, a rough area setting process 1 to set a processing area corresponding to the size of an electronic part, a roughly searching process to search the rough center position and the rough incline of the electronic part, and a precisely searching and standard position setting process 3 to search a second standard position of the electronic part against a plurality of electrodes based on the rough data obtained by the roughly searching process 2 are provided. Further, a precisely searching and area setting process 4 to set a small processing area surrounding the electrodes of the electronic part based on the second standard position, a precisely searching process 5 to search the center positions of the electrodes of the electronic part by processing the small processing area surrounding a plurality of the electrodes, and an electronic part's position detecting process 6 to calculate the center position and the incline of the electronic part based on the center positions of a plurality of the electrodes are provided.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は電子部品を回路基板に装
着する電子部品装着装置において、電子部品の位置およ
び傾きを高速で検出する電子部品の位置検出方法に関す
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic component mounting apparatus for mounting an electronic component on a circuit board, and more particularly to a method for detecting the position and inclination of an electronic component at high speed.

【0002】[0002]

【従来の技術】従来の電子部品の位置検出方法について
図9〜図11を用いて説明する。
2. Description of the Related Art A conventional method for detecting the position of an electronic component will be described with reference to FIGS.

【0003】図9は、電子部品の両端に電極を有するチ
ップ型コンデンサ80(以下、単にコンデンサと呼ぶ)
の位置検出を行う場合の説明図である。位置検出を高速
に行うため、デジタル画像の全処理領域81の中央に、
電極が入る2つの領域82および83をあらかじめ予測
して設定している。
FIG. 9 shows a chip type capacitor 80 (hereinafter simply referred to as a capacitor) having electrodes on both ends of an electronic component.
It is explanatory drawing in the case of performing the position detection of. In order to perform position detection at high speed, in the center of the entire processing area 81 of the digital image,
Two regions 82 and 83 in which the electrodes enter are predicted and set in advance.

【0004】図10は、電子部品装着装置においてコン
デンサ80が電子部品用の吸着ノズル90に吸着された
状態で、ビデオカメラ91により撮像されている状態を
示している。電子部品装着装置においては、吸着ノズル
90の中心軸の延長線とビデオカメラ91の撮像画面中
心が一致するように、吸着ノズル90とビデオカメラ9
1の位置が決定されている。
FIG. 10 shows a state in which the condenser 80 is sucked by the suction nozzle 90 for an electronic component in the electronic component mounting apparatus and is imaged by the video camera 91. In the electronic component mounting apparatus, the suction nozzle 90 and the video camera 9 are arranged so that the extension line of the central axis of the suction nozzle 90 and the center of the image pickup screen of the video camera 91 coincide with each other.
The position of 1 has been determined.

【0005】そこで、電極が入る2つの領域82および
83の寸法は、コンデンサ80の寸法を基本にして、電
子部品用の吸着ノズル90でコンデンサ80を吸着して
いるときに、吸着ノズル90が受ける衝撃で吸着ノズル
90に対してコンデンサ80がずれる量を予測して余裕
をもって決められている。
Therefore, the dimensions of the two regions 82 and 83 in which the electrodes are inserted are based on the dimensions of the capacitor 80, and the suction nozzle 90 receives the capacitors 80 while they are attracting the capacitors 80 by the suction nozzle 90 for electronic parts. The amount of displacement of the condenser 80 with respect to the suction nozzle 90 due to impact is predicted and is determined with a margin.

【0006】図11は、電極が入ってきた2つの領域8
2および83内を処理して、2つの電極の位置101お
よび102を求め、前記2つの電極の位置101および
102から、コンデンサ80の中心位置103と傾いた
軸104を検出することを示している。
FIG. 11 shows two regions 8 into which electrodes are inserted.
It is shown that the positions 2 and 83 are processed to obtain the positions 101 and 102 of the two electrodes, and the center position 103 of the capacitor 80 and the tilted axis 104 are detected from the positions 101 and 102 of the two electrodes. ..

【0007】[0007]

【発明が解決しようとする課題】しかしながら、前記の
ような構成では、あらかじめ設定しておいた2つの領域
82および83の中に電極が入らない場合が発生し、電
子部品の中心位置および傾き検出が正しく行えなくな
る。
However, in the above-described structure, the electrodes may not enter into the two regions 82 and 83 set in advance, and the center position and inclination of the electronic component can be detected. Cannot be done correctly.

【0008】図12(a)は吸着ノズルがコンデンサ8
0の中心を正しく吸着した場合の状態図であり、また図
12(b)は吸着ノズルがコンデンサ80を吸着したと
きに、両者の中心位置が少しずれた場合の状態図である
が、コンデンサ80の位置検出をする上ではなんら問題
はない。
In FIG. 12A, the suction nozzle is the condenser 8
FIG. 12B is a state diagram when the center of 0 is correctly adsorbed, and FIG. 12B is a state diagram when the center positions of the two are slightly displaced when the adsorption nozzle adsorbs the capacitor 80. There is no problem in detecting the position.

【0009】しかし図12(c)は図12(b)の状態
からコンデンサ80がさらにずれた状態を示しており、
領域82においてはコンデンサの電極がはみ出してお
り、コンデンサ80の位置検出が正しく行えなくなって
いることを示している。
However, FIG. 12 (c) shows a state in which the capacitor 80 is further displaced from the state of FIG. 12 (b),
In the area 82, the electrode of the capacitor is protruding, which indicates that the position of the capacitor 80 cannot be correctly detected.

【0010】本発明は上述した問題を解決し、常に高精
度でしかも高速で電子部品の位置決めを行うことを目的
とする。
SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems and always perform positioning of electronic parts with high accuracy and at high speed.

【0011】[0011]

【課題を解決するための手段】上記した目的を達成する
ために本発明の電子部品の位置検出方法は、電子部品の
寸法に応じた大きな処理エリアを、あらかじめ定めてお
いた第1の基準位置に設定する第1工程、大きな処理エ
リアからでの大まかな中心位置および大まかな傾きを検
出する第2工程、大まかな中心位置および大まかな傾き
から電子部品の複数の電極に1つずつ対応する第2の基
準位置を求める第3工程、その第2の基準位置を基準に
して電子部品の複数の電極を1つずつ囲む小さな処理エ
リアを設定する第4工程、その小さな処理エリアから電
子部品の複数の電極位置を求める第5工程、複数の電極
位置から電子部品の中心位置および傾きを検出する第6
工程より構成し、より小さな処理エリアを再設定するこ
とにより位置検出を行うようにしたものである。
In order to achieve the above-mentioned object, the position detecting method of an electronic component of the present invention is a first reference position in which a large processing area corresponding to the size of the electronic component is predetermined. The first step is to set, the second step to detect the rough center position and the rough tilt from a large processing area, the first step to correspond to the plurality of electrodes of the electronic component one by one from the rough center position and the rough tilt The third step of determining the reference position of 2, the fourth step of setting a small processing area surrounding each of the plurality of electrodes of the electronic component on the basis of the second reference position, the plurality of electronic components from the small processing area The fifth step of obtaining the electrode position of No. 6, and the sixth step of detecting the center position and inclination of the electronic component from the plurality of electrode positions
The position detection is performed by configuring the process and resetting a smaller processing area.

【0012】[0012]

【作用】本発明は前記した構成により、電子部品の大ま
かな中心位置と大まかな傾きをまず求め、その大まかな
中心位置と大まかな傾きから、電子部品の複数の電極を
1つずつ囲むより小さな処理エリアを再設定して複数の
電極位置を求め、求めた複数の電極位置から電子部品の
中心位置および傾きを高速かつ高精度に検出することが
できる。
According to the present invention, with the above-described structure, a rough center position and a rough inclination of an electronic component are first obtained, and a smaller center position and a rough inclination are used to enclose a plurality of electrodes of the electronic component one by one. The processing area can be reset to obtain a plurality of electrode positions, and the center position and inclination of the electronic component can be detected at high speed and with high accuracy from the obtained plurality of electrode positions.

【0013】[0013]

【実施例】以下、本発明のー実施例を、図1〜図8を用
いて説明する。
Embodiments of the present invention will be described below with reference to FIGS.

【0014】図1は本発明による電子部品の位置検出方
法の処理概要を示すフロー図で、図2および図3は図1
の各工程の詳細説明図である。まず、図1と図2および
図3を用いて本発明における、デジタル画像処理による
電子部品の位置検出方法の処理概要を説明する。
FIG. 1 is a flow chart showing the outline of processing of a method for detecting the position of an electronic component according to the present invention, and FIGS.
It is a detailed explanatory view of each step of. First, a processing outline of a position detecting method of an electronic component by digital image processing according to the present invention will be described with reference to FIGS. 1, 2, and 3.

【0015】粗検索エリア設定工程1は、図2に示すデ
ジタル画像処理の全処理領域10においてあらかじめ定
められた基準位置11が矩形領域12の中心となるよう
に、大きな矩形領域12を設定する工程である。矩形領
域12の大きさは、電子部品13の大きさを基準とし、
電子部品13が吸着ノズルに吸着されるときにずれる量
を考慮して、電子部品13が必ず収まる範囲内で、可能
な限り小さく決定する。
In the rough search area setting step 1, a large rectangular area 12 is set so that a predetermined reference position 11 is the center of the rectangular area 12 in the entire processing area 10 of the digital image processing shown in FIG. Is. The size of the rectangular area 12 is based on the size of the electronic component 13,
In consideration of the amount of deviation when the electronic component 13 is sucked by the suction nozzle, the electronic component 13 is determined to be as small as possible within a range where the electronic component 13 always fits.

【0016】粗検索工程2では、図3(a)に示す大き
な矩形領域12内を処理して電子部品13の大まかな中
心位置14と大まかな傾き15を検出する。
In the rough search step 2, the large rectangular area 12 shown in FIG. 3A is processed to detect the rough center position 14 and the rough inclination 15 of the electronic component 13.

【0017】精検索基準位置設定工程3では、図3
(b)に示すように電子部品13の大まかな中心位置1
4と大まかな傾き15から、電子部品13の複数の電極
に対応する第2の基準位置16および17を設定する。
In the fine search reference position setting step 3, FIG.
As shown in (b), the approximate center position 1 of the electronic component 13
The second reference positions 16 and 17 corresponding to the plurality of electrodes of the electronic component 13 are set from 4 and the rough inclination 15.

【0018】精検索エリア設定工程4では、図3(c)
に示すように第2の基準位置16および17が各電極に
対応するより小さな矩形領域18および19の中心に重
なるように、小さな矩形領域18および19を設定す
る。
In the fine search area setting step 4, FIG.
The small rectangular areas 18 and 19 are set so that the second reference positions 16 and 17 overlap the centers of the smaller rectangular areas 18 and 19 corresponding to the respective electrodes as shown in FIG.

【0019】精検索工程5では、図3(d)に示すよう
に小さな矩形領域18および19内を処理して電子部品
13の各電極位置20および21を検出する。
In the fine search step 5, the small rectangular areas 18 and 19 are processed to detect the electrode positions 20 and 21 of the electronic component 13 as shown in FIG. 3 (d).

【0020】電子部品位置検出工程6では、図3(e)
に示すように電極位置20および21から、最終的に必
要な電子部品13の中心位置22と傾き23を検出す
る。
In the electronic component position detecting step 6, FIG.
As shown in FIG. 5, the finally required center position 22 and inclination 23 of the electronic component 13 are detected from the electrode positions 20 and 21.

【0021】つぎに、粗検索工程2を図4を用いて詳し
く説明する。図4は、電子部品13を囲む粗検索エリア
12内に、i画素おきに粗く設定した複数個の格子点
(本実施例では30点)24を示している。30個の格
子点24上の輝度INI(x,y)から電子部品13の
大まかな中心位置14と大まかな傾き15が算出でき
る。このように格子点24をi画素おきに粗く設定する
ことにより、処理の大幅な高速化が図れる。たとえばi
=5とすれば、全領域の処理を行うのと比べて、処理デ
ータ量が25分の1となり、それだけ処理時間が短縮さ
れることになる。このような方法により求められる中心
位置と傾きを数式化すれば、 中心位置座標は(Sx/N,Sy/N) 傾きは(1/2)tan-1(S1/S2) となる。ただし、 S1=2(N・Sxy−Sx・Sy) S2=(N・Sxx−Sx・Sy)−(N・Syy−S
x・Sy) さらに
Next, the rough search step 2 will be described in detail with reference to FIG. FIG. 4 shows a plurality of grid points (30 points in this embodiment) 24 roughly set every i pixels in the rough search area 12 surrounding the electronic component 13. From the brightness INI (x, y) on the 30 grid points 24, the rough center position 14 and the rough slope 15 of the electronic component 13 can be calculated. By roughly setting the grid points 24 every i pixels in this way, the processing speed can be significantly increased. For example i
When = 5, the amount of data to be processed is reduced to 1/25 as compared with the case where the entire area is processed, and the processing time is reduced accordingly. When the center position and the slope obtained by such a method are mathematically expressed, the center position coordinates are (Sx / N, Sy / N) and the slope is (1/2) tan −1 (S1 / S2). However, S1 = 2 (N * Sxy-Sx * Sy) S2 = (N * Sxx-Sx * Sy)-(N * Syy-S)
x ・ Sy)

【0022】[0022]

【数1】 [Equation 1]

【0023】[0023]

【数2】 [Equation 2]

【0024】[0024]

【数3】 [Equation 3]

【0025】[0025]

【数4】 [Equation 4]

【0026】[0026]

【数5】 [Equation 5]

【0027】[0027]

【数6】 [Equation 6]

【0028】 ρ(x,y)=max[INT(x,y)−THL,O] であり、THLは各画素におけるしきい値である。Ρ (x, y) = max [INT (x, y) −THL, O], where THL is a threshold value for each pixel.

【0029】図5は、精検索工程5の詳細説明図であ
る。図5(a)では、電極を囲む小さな処理エリア40
内を、一定方向にスキャンする走査線41をj画素おき
に設定し、走査線41上の輝度INT(x,y)を1画
素ごとに読み出して、輝度が大きく変化する点を検出し
ている。輝度が大きく変化する点には、輝度が暗から明
に変化するライジングエッジ点42と、輝度が明から暗
に変化するフォーリングエッジ点43がある。図5
(b)では、ライジングエッジ点42あるいはフォーリ
ングエッジ点43ごとに、直線上に並ぶ点を抽出する。
そして図5(c)に示されるように、ライジングエッジ
点42で構成される線分44とフォーリングエッジ点4
3で構成される線分45の両端点から仮中心46を求め
る。仮中心46から線分44に平行な方向に延ばした線
分上の2ヵ所に、微小処理エリア47,48を設定し、
電子部品13の外側から内側に探索して、2つのライジ
ングエッジ点49と50を抽出する。この2つのライジ
ングエッジ49と50の中点51が、電子部品13の1
つの電極の中心位置となる。
FIG. 5 is a detailed explanatory diagram of the fine search step 5. In FIG. 5A, a small processing area 40 surrounding the electrodes
A scanning line 41 for scanning in a fixed direction is set every j pixels, and the luminance INT (x, y) on the scanning line 41 is read for each pixel to detect a point where the luminance greatly changes. .. There are a rising edge point 42 at which the brightness changes from dark to bright and a falling edge point 43 at which the brightness changes from bright to dark. Figure 5
In (b), points arranged on a straight line are extracted for each rising edge point 42 or falling edge point 43.
Then, as shown in FIG. 5C, a line segment 44 composed of the rising edge point 42 and the falling edge point 4 are formed.
The provisional center 46 is obtained from both end points of the line segment 45 constituted by 3. Micro processing areas 47 and 48 are set at two locations on a line segment extending from the temporary center 46 in a direction parallel to the line segment 44,
The two rising edge points 49 and 50 are extracted by searching from the outside to the inside of the electronic component 13. The midpoint 51 of these two rising edges 49 and 50 is the 1 of the electronic component 13.
It is the center position of the two electrodes.

【0030】つぎに、図6のブロック図を用いて、本発
明による電子部品の位置検出が行われる過程を説明す
る。電子部品13は、吸着ノズル52に吸着されてお
り、照明53によって明るく照らされている。撮像手段
54が吸着ノズル52に保持された電子部品13を下側
から撮像している。撮像手段54から得られるビデオ信
号はデジタル化手段55でデジタル化され、デジタル画
像パターンとなって画像パターン記憶手段56に格納さ
れる。照明53の光が電子部品13に対して直接照射さ
れるため、画像パターン記憶手段56に格納された画像
パターンは、両端の電極部分がその周囲に対して明るく
なっている。
Next, the process of detecting the position of the electronic component according to the present invention will be described with reference to the block diagram of FIG. The electronic component 13 is sucked by the suction nozzle 52 and is brightly illuminated by the illumination 53. The imaging unit 54 images the electronic component 13 held by the suction nozzle 52 from below. The video signal obtained from the image pickup means 54 is digitized by the digitization means 55 and becomes a digital image pattern and stored in the image pattern storage means 56. Since the light of the illumination 53 is directly applied to the electronic component 13, the electrode patterns at both ends of the image pattern stored in the image pattern storage unit 56 are brighter than their surroundings.

【0031】上位コントローラ57は、電子部品情報記
憶手段58に電子部品13の外形寸法や電極の位置・個
数に関するデータを転送する。中央処理手段59は、電
子部品情報記憶手段58に格納されている電子部品13
の外形寸法に基づいて、粗検索手段60に粗検索エリア
を設定し、粗検索手段60に粗検索を行わせる。粗検索
手段60は、画像パターン記憶手段56の粗検索エリア
を処理して、電子部品13の大まかな中心位置と大まか
な傾きを検出する。中央処理手段59は、粗検索手段6
0が検出した電子部品13の大まかな中心位置および大
まかな傾きと、電子部品情報記憶手段58に格納された
電子部品13の外形寸法や電極の位置・個数に関するデ
ータから、複数の電極を1つずつ囲む精検索エリアを精
検索手段61に設定し、精検索手段61に精検索を行わ
せる。精検索手段61は、画像パターン記憶手段56の
精検索エリアを処理して各電極の位置を高精度に検出す
る。中央処理手段59は、精検索手段61が検出した電
極の位置データから電子部品13の中心位置と傾きを検
出し、電子部品位置記憶手段62を通じて上位コントロ
ーラ57に通知する。
The host controller 57 transfers data relating to the external dimensions of the electronic component 13 and the position and number of electrodes to the electronic component information storage means 58. The central processing means 59, the electronic component 13 stored in the electronic component information storage means 58.
Based on the outer dimensions of the above, the rough search area is set in the rough search means 60, and the rough search means 60 is made to perform the rough search. The rough search means 60 processes the rough search area of the image pattern storage means 56 to detect the rough center position and the rough inclination of the electronic component 13. The central processing means 59 is the rough search means 6
One electrode is selected from the rough center position and the rough inclination of the electronic component 13 detected by 0, and the external dimensions of the electronic component 13 stored in the electronic component information storage means 58 and the position and number of electrodes. The fine search area surrounded by each is set in the fine search means 61, and the fine search means 61 is made to perform the fine search. The fine search means 61 processes the fine search area of the image pattern storage means 56 to detect the position of each electrode with high accuracy. The central processing means 59 detects the center position and inclination of the electronic component 13 from the electrode position data detected by the fine search means 61, and notifies the host controller 57 through the electronic component position storage means 62.

【0032】図7(a)および図7(b)は、2通りの
粗検索エリア設定方法を示したもので、図8(a)およ
び図8(b)は、図7に対応した精検索エリアの設定方
法を示すものである。
FIGS. 7 (a) and 7 (b) show two rough search area setting methods, and FIGS. 8 (a) and 8 (b) show precise search corresponding to FIG. It shows a method of setting an area.

【0033】なお図7および図8における各部の符号は
図2および図3と共通である。
The reference numerals of the respective parts in FIGS. 7 and 8 are the same as those in FIGS. 2 and 3.

【0034】[0034]

【発明の効果】以上の説明から明らかなように本発明
は、電子部品の寸法に応じた大きな処理エリアを、あら
かじめ定めておいた第1の基準位置を基準に設定して電
子部品の大まかな中心位置および大まかな傾きを求め、
それら大まかな中心位置および大まかな傾きから電子部
品の複数の電極に1つずつ対応する第2の基準位置を求
め、その第2の基準位置を基準にして電子部品の複数の
電極を1つずつ囲む小さな処理エリアを設定して電子部
品の複数の電極位置を求めることにより、複数の電極位
置から電子部品の中心位置および傾きを高速かつ高精度
に検出することが可能となり、生産性を著しく高めるこ
とができる。
As is apparent from the above description, according to the present invention, a large processing area corresponding to the size of an electronic component is set with reference to a predetermined first reference position as a reference. Find the center position and the rough slope,
A second reference position corresponding to each of the plurality of electrodes of the electronic component is obtained from the rough center position and the rough inclination, and the plurality of electrodes of the electronic component are individually arranged on the basis of the second reference position. By setting a small processing area that surrounds and determining the multiple electrode positions of the electronic component, it is possible to detect the center position and tilt of the electronic component from the multiple electrode positions at high speed and with high accuracy, which significantly increases productivity. be able to.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の電子部品の位置検出方法のー実施例を
示すフロー図
FIG. 1 is a flow chart showing an embodiment of a method for detecting the position of an electronic component of the present invention.

【図2】同方法のデジタル画像処理の全エリアと第1工
程における処理エリアおよび電子部品の位置関係を示す
平面図
FIG. 2 is a plan view showing the positional relationship between the entire area of digital image processing of the same method, the processing area in the first step, and electronic components.

【図3】(a)は同方法の粗検索工程における処理過程
の説明図 (b)は同方法の精検索工程において第2の基準位置を
設定する過程の説明図 (c)は同方法の精検索工程においてより小さな矩形領
域を設定する過程の説明図 (d)は同方法の精検索工程において電子部品の各電極
位置を検出する過程の説明図 (e)は同方法の精検索工程において電子部品の中心と
傾きを検出する過程の説明図
FIG. 3A is an explanatory diagram of a processing step in a rough search step of the same method, and FIG. 3B is an explanatory diagram of a process of setting a second reference position in a fine search step of the same method. An explanatory view of a process of setting a smaller rectangular area in the fine search process (d) is an explanatory view of a process of detecting each electrode position of an electronic component in the fine search process of the same method (e) is a fine search process of the same method Explanatory drawing of the process of detecting the center and inclination of electronic components

【図4】同方法の粗検索工程における粗検索エリア内の
格子点から電子部品の大まかな中心位置と大まかな傾き
を検出する過程の説明図
FIG. 4 is an explanatory diagram of a process of detecting a rough center position and a rough tilt of an electronic component from grid points in a rough search area in the rough search process of the same method.

【図5】(a)は同方法の精検索工程において電子部品
の電極のエッジ点を検出する説明図 (b)は同方法の精検索工程において求められたエッジ
点で構成される直線を検出する説明図 (c)は同方法の精検索工程において電子部品の電極の
中心点を検出する説明図
FIG. 5 (a) is an explanatory diagram for detecting an edge point of an electrode of an electronic component in a fine search step of the method, and FIG. 5 (b) is a straight line composed of edge points obtained in the fine search step of the method. Explanatory diagram (c) is an explanatory diagram for detecting the center point of the electrode of the electronic component in the fine search step of the same method

【図6】同方法を実現するための装置の構成のー例を示
すブロック図
FIG. 6 is a block diagram showing an example of a configuration of an apparatus for realizing the method.

【図7】(a)は同方法において縦長に粗検索エリアが
設定された状態図 (b)は同方法において横長に粗検索エリアが設定され
た状態図
FIG. 7A is a state diagram in which a vertically long coarse search area is set in the same method, and FIG. 7B is a state diagram in which a horizontally long rough search area is set in the same method.

【図8】(a)は同方法において電子部品が縦長になる
ように精検索エリアが設定された状態図 (b)は同方法において電子部品が横長になるように精
検索エリアが設定された状態図
FIG. 8 (a) is a state diagram in which the fine search area is set so that the electronic component becomes vertically long in the same method. FIG. 8 (b) shows a fine search area is set so that the electronic component becomes horizontally long in the same method. State diagram

【図9】従来の電子部品の位置検出方法の説明図FIG. 9 is an explanatory diagram of a conventional position detection method for electronic components.

【図10】電子部品とビデオカメラの位置関係を示す斜
視図
FIG. 10 is a perspective view showing a positional relationship between electronic components and a video camera.

【図11】従来の固定された処理エリアと電子部品の位
置関係を示す図
FIG. 11 is a diagram showing a positional relationship between a conventional fixed processing area and electronic components.

【図12】(a)は従来の電子部品検出方法において2
つの処理エリアに対し電子部品が正しい姿勢で吸着ノズ
ルに吸着された状態図 (b)は従来の同方法において2つの処理エリアに対し
電子部品が位置検出可能な範囲で位置ずれして吸着ノズ
ルに吸着された状態図 (c)は従来の同方法において2つの処理エリアに対し
電子部品が位置検出不能となるまで位置ずれして吸着ノ
ズルに吸着された状態図
FIG. 12 (a) shows a conventional electronic component detection method 2
The state diagram where the electronic component is adsorbed by the suction nozzle in the correct posture for one processing area is shown in (b). Adsorbed state diagram (c) is a state diagram in which the electronic component is misaligned with respect to the two processing areas until the position cannot be detected and is adsorbed by the adsorption nozzle in the same conventional method.

【符号の説明】[Explanation of symbols]

1 粗検索エリア設定工程(第1工程) 2 粗検索工程(第2工程) 3 精検索基準位置設定工程(第3工程) 4 精検索エリア工程(第4工程) 5 精検索工程(第5工程) 6 電子部品位置検出工程(第6工程) 1 rough search area setting step (first step) 2 rough search step (second step) 3 fine search reference position setting step (third step) 4 fine search area step (fourth step) 5 fine search step (fifth step) ) 6 electronic component position detection step (sixth step)

───────────────────────────────────────────────────── フロントページの続き (72)発明者 清水 隆 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takashi Shimizu 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.

Claims (1)

【特許請求の範囲】 【請求項1】電子部品をビデオカメラなどの撮像手段に
よって撮像し、撮像手段から得られる電子部品のビデオ
信号をデジタル化し、デジタル化したビデオ信号である
デジタル画像パターンを処理して電子部品の中心位置お
よび傾きを求めるデジタル画像処理において、電子部品
寸法に応じた大きな処理エリアをあらかじめ定めておい
た第1の基準位置を基準に設定する第1工程と、その第
1工程の処理エリアを処理して電子部品の大まかな中心
位置および大まかな傾きを求める第2工程と、第2工程
で求めた大まかな中心位置および大まかな傾きから電子
部品の複数の電極に1つずつ対応する第2の基準位置を
求める第3工程と、第2の基準位置から電子部品の複数
の電極を1つずつ囲む小さな処理エリアを設定する第4
工程と、第4工程の複数の小さな処理エリアを処理して
電子部品の複数の電極の中心位置を求める第5工程と、
第5工程で求めた複数の電極の中心位置から電子部品の
中心位置および傾きを求める第6工程とよりなり、小さ
な処理エリアを再設定することによって位置検出を行う
電子部品の位置検出方法。
Claim: What is claimed is: 1. An electronic component is imaged by an image pickup means such as a video camera, a video signal of the electronic component obtained from the image pickup means is digitized, and a digital image pattern which is a digitized video signal is processed. In digital image processing for obtaining the center position and tilt of the electronic component, a first step of setting a large processing area according to the electronic component size in advance based on a first reference position, and the first step The second step of processing the processing area to obtain the rough center position and the rough inclination of the electronic component, and one for each of the plurality of electrodes of the electronic component from the rough center position and the rough inclination obtained in the second step. A third step of obtaining a corresponding second reference position, and a step of setting a small processing area surrounding each of the plurality of electrodes of the electronic component from the second reference position. Four
A step, and a fifth step of processing the plurality of small processing areas of the fourth step to obtain the center positions of the plurality of electrodes of the electronic component,
A method of detecting the position of an electronic component, comprising the sixth step of obtaining the central position and inclination of the electronic component from the central positions of the plurality of electrodes obtained in the fifth step, and performing position detection by resetting a small processing area.
JP3164325A 1991-07-04 1991-07-04 Electronic component position detection method Expired - Lifetime JP2985380B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3164325A JP2985380B2 (en) 1991-07-04 1991-07-04 Electronic component position detection method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3164325A JP2985380B2 (en) 1991-07-04 1991-07-04 Electronic component position detection method

Publications (2)

Publication Number Publication Date
JPH0510719A true JPH0510719A (en) 1993-01-19
JP2985380B2 JP2985380B2 (en) 1999-11-29

Family

ID=15791021

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3164325A Expired - Lifetime JP2985380B2 (en) 1991-07-04 1991-07-04 Electronic component position detection method

Country Status (1)

Country Link
JP (1) JP2985380B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1051200A (en) * 1996-07-30 1998-02-20 Matsushita Electric Ind Co Ltd Method for detecting component
JP2007273519A (en) * 2006-03-30 2007-10-18 Matsushita Electric Ind Co Ltd Method and device of recognizing center of object to be recognized
JP2008216140A (en) * 2007-03-06 2008-09-18 Fuji Mach Mfg Co Ltd Transfer material transfer inspection method in electronic component installing device
JP2010183639A (en) * 2010-04-21 2010-08-19 Panasonic Corp Imaging apparatus and imaging method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1051200A (en) * 1996-07-30 1998-02-20 Matsushita Electric Ind Co Ltd Method for detecting component
JP2007273519A (en) * 2006-03-30 2007-10-18 Matsushita Electric Ind Co Ltd Method and device of recognizing center of object to be recognized
JP4622912B2 (en) * 2006-03-30 2011-02-02 パナソニック株式会社 Method and apparatus for recognizing center position of recognition object
JP2008216140A (en) * 2007-03-06 2008-09-18 Fuji Mach Mfg Co Ltd Transfer material transfer inspection method in electronic component installing device
JP2010183639A (en) * 2010-04-21 2010-08-19 Panasonic Corp Imaging apparatus and imaging method

Also Published As

Publication number Publication date
JP2985380B2 (en) 1999-11-29

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